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‘All brakes are off’: Russia’s attempt to rein in illicit market for leaked data backfires

Russian state has tolerated parallel probiv market for its convenience but now Ukrainian spies are exploiting it

Russia is scrambling to rein in the country’s sprawling illicit market for leaked personal data, a shadowy ecosystem long exploited by investigative journalists, police and criminal groups.

For more than a decade, Russia’s so-called probiv market – a term derived from the verb “to pierce” or “to punch into a search bar” – has operated as a parallel information economy built on a network of corrupt officials, traffic police, bank employees and low-level security staff willing to sell access to restricted government or corporate databases.

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© Photograph: Alexander Zemlianichenko/AP

© Photograph: Alexander Zemlianichenko/AP

© Photograph: Alexander Zemlianichenko/AP

01flip: Multi-Platform Ransomware Written in Rust

10 December 2025 at 12:00

01flip is a new ransomware family fully written in Rust. Activity linked to 01flip points to alleged dark web data leaks.

The post 01flip: Multi-Platform Ransomware Written in Rust appeared first on Unit 42.

London councils enact emergency plans after three hit by cyber-attack

Kensington and Westminster councils investigating whether data has been compromised as Hammersmith and Fulham also reports hack

Three London councils have reported a cyber-attack, prompting the rollout of emergency plans and the involvement of the National Crime Agency (NCA) as they investigate whether any data has been compromised.

The Royal Borough of Kensington and Chelsea (RBKC), and Westminster city council, which share some IT infrastructure, said a number of systems had been affected across both authorities, including phone lines. The councils shut down several computerised systems as a precaution to limit further possible damage.

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© Photograph: Artur Marciniec/Alamy

© Photograph: Artur Marciniec/Alamy

© Photograph: Artur Marciniec/Alamy

The Dual-Use Dilemma of AI: Malicious LLMs

25 November 2025 at 12:00

The line between research tool and threat creation engine is thin. We examine the capabilities of WormGPT 4 and KawaiiGPT, two malicious LLMs.

The post The Dual-Use Dilemma of AI: Malicious LLMs appeared first on Unit 42.

Knee-jerk corporate responses to data leaks protect brands like Qantas — but consumers are getting screwed

When courts ban people from accessing leaked data – as happened after the airline’s data breach – only hackers and scammers win

It’s become the playbook for big Australian companies that have customer data stolen in a cyber-attack: call in the lawyers and get a court to block anyone from accessing it.

Qantas ran it after suffering a major cybersecurity attack that accessed the frequent flyer details of 5 million customers.

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© Photograph: Bianca de Marchi/AAP

© Photograph: Bianca de Marchi/AAP

© Photograph: Bianca de Marchi/AAP

Capita fined £14m for data protection failings in 2023 cyber-attack

Hackers stole personal information of 6.6m people but outsourcing firm did not shut device targeted for 58 hours

The outsourcing company Capita has been fined £14m for data protection failings after hackers stole the personal information of 6.6 million people, including staff details and those of its clients’ customers.

John Edwards, the UK information commissioner who levied the fine, said the March 2023 data theft from the group and companies it supported, including 325 pension providers, caused anxiety and stress for those affected.

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© Photograph: Dado Ruvić/Reuters

© Photograph: Dado Ruvić/Reuters

© Photograph: Dado Ruvić/Reuters

Six out of 10 UK secondary schools hit by cyber-attack or breach in past year

Hackers are more likely to target educational institutions than private businesses, government survey shows

When hackers attacked UK nurseries last month and published children’s data online, they were accused of hitting a new low.

But the broader education sector is well used to being a target.

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© Photograph: MBI/Alamy

© Photograph: MBI/Alamy

© Photograph: MBI/Alamy

Hackers reportedly steal pictures of 8,000 children from Kido nursery chain

Firm, which has 18 sites around London and more in US, India and China, has received ransom demand, say reports

The names, pictures and addresses of about 8,000 children have reportedly been stolen from the Kido nursery chain by a gang of cybercriminals.

The criminals have demanded a ransom from the company – which has 18 sites around London, with more in the US, India and China – according to the BBC.

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© Photograph: solarseven/Getty Images/iStockphoto

© Photograph: solarseven/Getty Images/iStockphoto

© Photograph: solarseven/Getty Images/iStockphoto

Legal aid cyber-attack has pushed sector towards collapse, say lawyers

Barristers report going unpaid and cases being turned away amid fears firms will desert legal aid work altogether

Lawyers have warned that a cyber-attack on the Legal Aid Agency has pushed the sector into chaos, with barristers going unpaid, cases being turned away and fears a growing number of firms could desert legal aid work altogether.

In May, the legal aid agency announced that the personal data of hundreds of thousands of legal aid applicants in England and Wales dating back to 2010 had been accessed and downloaded in a significant cyber-attack.

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© Photograph: Hesther Ng/SOPA Images/REX/Shutterstock

© Photograph: Hesther Ng/SOPA Images/REX/Shutterstock

© Photograph: Hesther Ng/SOPA Images/REX/Shutterstock

Louis Vuitton says UK customer data stolen in cyber-attack

Lead brand of French luxury group LVMH reassures customers financial data such as bank details were not taken

Louis Vuitton has said the data of some UK customers has been stolen, as it became the latest retailer targeted by cyber hackers.

The retailer, the leading brand of the French luxury group LVMH, said an unauthorised third party had accessed its UK operation’s systems and obtained information such as names, contact details and purchase history.

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© Photograph: SOPA Images/LightRocket/Getty Images

© Photograph: SOPA Images/LightRocket/Getty Images

© Photograph: SOPA Images/LightRocket/Getty Images

Russian-led cybercrime network dismantled in global operation

Arrest warrants issued for ringleaders after investigation by police in Europe and North America

European and North American cybercrime investigators say they have dismantled the heart of a malware operation directed by Russian criminals after a global operation involving British, Canadian, Danish, Dutch, French, German and US police.

International arrest warrants have been issued for 20 suspects, most of them living in Russia, by European investigators while indictments were unsealed in the US against 16 individuals.

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© Photograph: Andrew Brookes/Getty Images/Image Source

© Photograph: Andrew Brookes/Getty Images/Image Source

© Photograph: Andrew Brookes/Getty Images/Image Source

What to do if you can’t get into your Facebook or Instagram account

How to prove your identity after your account gets hacked and how to improve security for the future

Your Facebook or Instagram account can be your link to friends, a profile for your work or a key to other services, so losing access can be very worrying. Here’s what to do if the worst happens.

If you have access to the phone number or email account associated with your Facebook or Instagram account, try to reset your password by clicking on the “Forgot password?” link on the main Facebook or Instagram login screen. Follow the instructions in the email or text message you receive.

If you no longer have access to the email account linked to your Facebook account, use a device with which you have previously logged into Facebook and go to facebook.com/login/identify. Enter any email address or phone number you might have associated with your account, or find your username which is the string of characters after Facebook.com/ on your page. Click on “No longer have access to these?”, “Forgotten account?” or “Recover” and follow the instructions to prove your identity and reset your password.

If your account was hacked, visit facebook.com/hacked or instagram.com/hacked/ on a device you have previously used to log in and follow the instructions. Visit the help with a hacked account page for Facebook or Instagram.

Change the password to something strong, long and unique, such as a combination of random words or a memorable lyric or quote. Avoid simple or guessable combinations. Use a password manager to help you remember it and other important details.

Turn on two-step verification in the “password and security” section of the Accounts Centre. Use an authentication app or security key for this, not SMS codes. Save your recovery codes somewhere safe in case you lose access to your two-step authentication method.

Turn on “unrecognised login” alerts in the “password and security” section of the Accounts Centre, which will alert you to any suspicious login activity.

Remove any suspicious “friends” from your account – these could be fake accounts or scammers.

If you are eligible, turn on “advanced protection for Facebook” in the “password and security” section of the Accounts Centre.

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© Photograph: bigtunaonline/Alamy

© Photograph: bigtunaonline/Alamy

© Photograph: bigtunaonline/Alamy

‘Source of data’: are electric cars vulnerable to cyber spies and hackers?

British defence firms have reportedly warned staff not to connect their phones to Chinese-made EVs

Mobile phones and desktop computers are longstanding targets for cyber spies – but how vulnerable are electric cars?

On Monday the i newspaper claimed that British defence firms working for the UK government have warned staff against connecting or pairing their phones with Chinese-made electric cars, due to fears that Beijing could extract sensitive data from the devices.

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© Photograph: Ying Tang/NurPhoto/REX/Shutterstock

© Photograph: Ying Tang/NurPhoto/REX/Shutterstock

© Photograph: Ying Tang/NurPhoto/REX/Shutterstock

Phishing Trends to Watch Out for in 2025

Phishing attacks are becoming more sophisticated than ever in 2025, leveraging cutting-edge technology to deceive individuals and organizations. Here are the new and most prevalent trends to consider when defending against the number one cyber attack vector.

Tracking Threat Actors Using Images and Artifacts

29 May 2024 at 10:00
When tracking adversaries, we commonly focus on the malware they employ in the final stages of the kill chain and infrastructure, often overlooking samples used in the initial ones.
In this post, we will explore some ideas to track adversary activity leveraging images and artifacts mostly used during delivery. We presented this approach at the FIRST CTI in Berlin and at Botconf in Nice.

Hunting early

In threat hunting and detection engineering activities, analysts typically focus heavily on the latter stages of the kill chain – from execution to actions on objectives (Figure 1). This is mainly because there is more information available about adversaries in these phases, and it's easier to search for clues using endpoint detection and response (EDR), security information and event management (SIEM), and other solutions.
Figure 1: Stages of the kill chain categorized by their emphasis on threat hunting and detection engineering.
We have been exploring ideas to improve our hunting focused on samples built in the weaponization phase and distributed in the delivery phase, focused on the detection of suspicious Microsoft Office documents (Word, Excel, and PowerPoint), PDF files, and emails.
In threat intelligence platforms and cybersecurity in general, green and red colors are commonly used to quickly indicate results and identify whether or not something is malicious. This is because they are perceived as representing good or bad, respectively.
Multiple studies in psychology have demonstrated how colors can influence our decision-making process. VirusTotal, through the third-party engines integrated into it, shows users when something is detected and therefore deemed "malicious," and when something is not detected and considered "benign."
For example, the sample in Figure 2 belongs to a Microsoft Word document distributed by the SideWinder group during the year 2024.
Figure 2: Document used by the SideWinder APT group
The sample in question was identified at the time of writing this post by 31 antivirus engines, leaving no doubt that it is indeed a real malware sample. In the process of pivoting to identify new samples or related infrastructure, starting with Figure 2, the analyst will likely click on the URL detected by 11 out of the 91 engines, and the domains detected by 17 and 15 engines, respectively, to see if there are other samples communicating with them. The remaining two domains (related to windows.com and live.com) in this case are easily identified as legitimate domains that were likely contacted by the sandbox during its execution.
Figure 3: Relationships within the SideWinder APT group document
In the same sample, if you go down in the VirusTotal report (Figure 3), the analyst will likely click on the ZIP file listed as "compressed parent" to check if there are other samples within this ZIP besides the current one. They may also click on the XML file detected by 8 engines, and the LNK file detected by 4 engines. The remaining files in the bundled files section probably won't be clicked, as the green color indicates they are not malicious, and also because they have less enticing formats — mainly XML and JPEG. But what if we explore them?

XML files generated by Microsoft Office

When you create a new Microsoft Office file, it automatically generates a series of embedded XML files containing information about the document. Additionally, if you use images in the document, they are also embedded within it. Microsoft Office files are compressed files (similar to ZIP files). In VirusTotal, when a Microsoft Word file is uploaded, you can see all these embedded files in the embedded files section.
We have mainly focused on three types of embedded files within Office documents:
  • Images:Many threat actors use images related to the organizations or entities they intend to impersonate. They do this to make documents appear legitimate and gain the trust of their victims.

  • [Content_Types].xml:This file specifies the content types and relationships within the Office Open XML (OOXML) document. It essentially defines the types of content and how they are organized within the file structure.

  • Styles.xml:Stores stylistic definitions for your document. These styles provide consistent formatting instructions for fonts, paragraph spacing, colors, numbering, lists, and much more.

Our hypothesis is: If malicious Microsoft Word documents are copied and pasted during the weaponization building process, with only the content being modified, the hashes of the [Content_Types].xml and styles.xml files will likely remain the same.

Office documents

To check our hypothesis, we selected a set of samples used during delivery and belonging the threat actors listed in Figure 4:
Figure 4: Number of samples per actor within the scope
Let’s analyze some of the results we obtained per actor.

APT28 – Images

We started by focusing on images APT28 has reused for different delivery samples (Figure 5).
Figure 5: Images shared in multiple documents by APT28
Each line in the Figure 5 graph represents the same image, and each point represents at least two samples that used that particular image.
The second image of the graph shows how it was used by different Office documents at different points in time, from 2018 to 2022 (dates related to their upload to VirusTotal).
Now, the chart in Figure 6 visualizes each of these images.
Figure 6: Content of the images shared in multiple documents by APT28
  • The first image is just a simple line with no particular meaning. It's embedded in over 100 files known by VirusTotal.

  • The second image is a hand and has 14 compressed parents.

  • The third image consists of black circles and also has over 100 compressed parents.

  • The last image is like a Word page with a table, presenting a fake EDA Roadmap of the European Commission. The image format is EMF (an old format) and it has 4 compressed parents

If we delve into the compressed parents of the second image (the one with the hand), we can see how the image is used in Office documents that are part of a campaign reported by Mandiant attributed to APT28. The image of the hand was used in fake Word documents for hotel reservations, particularly in a small section where the client was supposed to sign.
Figure 7: Pivoting through a specific image used by APT28

SideWinder – Images

SideWinder (aka RAZER TIGER) is a group focused on carrying out operations against military targets in Pakistan. This group traditionally reused images, which might help monitoring their activity.
Figure 8: Images shared in multiple documents by RAZOR TIGER
In particular, the image in Figure 9 was used in a sample uploaded in September 2021 and in a second one uploaded March 2022. The image in question is the signature of Baber Bilal Haider.
Figure 9: Two different samples of RAZOR TIGER share the same image of a handwritten signature

Gamaredon – [Content_Types].xml and styles.xml

For Gamaredon we found they reused styles.xml and [Content_Types].xml in different documents, which helped reveal new samples.
Figure 10 chart displays all the [Content_Types].xml files from Gamaredon's Office documents.
Figure 10: [Content_Types].xml shared in multiple documents by Gamaredon Group
There are a large number of samples that share the same [Content_Types].xml. It's important to highlight that these [Content_Types].xml files are not necessarily exclusively used by Gamaredon, and can be found in other legitimate files created by users worldwide. However, some of these [Content_Types].xml might be interesting to monitor.
Styles.xml files are usually less generic, which should make them a better candidate to monitor:
Figure 11: Styles.xml shared in multiple documents by Gamaredon Group
We see styles.xml files are less reused than [Content_Types].xml. This could be because some of the samples used by this actor for distribution are created from scratch or reusing legitimate documents.
We used identified patterns in the styles.xml files to launch a retrohunt on VirusTotal. Figure 12 visually represents the original set of style.xml files (left) and those that were added later after running the retrohunt (right).
Figure 12: Initial graph of the styles.xml and its parents used by Gamaredon (left). Final graph after identifying new styles.xml and their parents using retrohunt in VirusTotal (right)
One of the new styles.xml files found in our retrohunt has 17 compressed parents, meaning it was included in 17 Office files.
Figure 13: Number of parent documents for a specific styles.xml file used by Gamaredon
All the parents were malicious, some of them identical and the rest very similar between them. The content of many of them referred to "Foreign institutions of Ukraine - Embassy of Ukraine in Hungary," containing a table with phone numbers and information about the embassy, such as social media links and email accounts. Here's an example:
Figure 14: Document used by Gamaredon in one of its campaigns that includes multiple images which can be used to monitor new samples
The information for social media includes the logos of these platforms, such as the Facebook logo, Skype logo, an image of a telephone, etc. By pivoting, on the image of the Facebook icon, we find that it has 12 additional compressed parents, meaning it appears in 12 documents, all of them sharing the same styles.xml file.
Visualizing all together, we find a set of about 12-14 images used within the same timeframe by the actor. All of these images can be found in the “Embassy of Ukraine in Hungary” document.
Figure 15: Pivoting through the Facebook image that included the document in Figure 14
There's a pattern evident in the previous image where different images were included in files uploaded simultaneously. This pattern is associated with multiple documents used in the same campaign of the Embassy of Ukraine in Hungary, all of them were using the same social media images explained before.

Styles.xml shared between threat actors

Another aspect we explored was if different threat actors shared similar styles.xml files in their documents. Styles.xml files are somewhat more specific and unique than [Content_Types].xml files because they can contain styles created by threat actors or by legitimate entities that originally created the document and then were modified by the actor. This makes them stand out more and can help in identifying threat actor activity.
This doesn't necessarily imply they share information to conduct separate operations, although in some cases, it could be a scenario worth considering.
Figure 16: styles.xml shared between different threat actors
Of all styles.xml files related to actors in our initial set, only six of them were found to be shared by at least two actors. Some styles defined by the styles.xml file are very generic and could identify almost any type of file. However, there are others that could be interesting to explore further.
An interesting case is the Styles.xml file, which seems to be shared by Razor Tiger, APT28, and UAC-0099. Specifically, the samples from APT28 and UAC-0099 are attract because they were uploaded to VirusTotal within short time frames, suggesting they might belong to the same threat actor.
You can see the list of hashes in the appendix of this blog

[Content_Types].xml shared between threat actors

Like in the previous case, we checked if there were Office documents among different threat actors sharing [Content_Types].xml:
Figure 17: [Content_Types].xml shared between different threat actors
In this case, there are eleven [Content_Types].xml files that are shared by at least two different actors.
An interesting case here is the file dfa90f373b8fd8147ee3e4bfe1ee059e536cc1b068f7ec140c3fc0e6554f331a, which is shared by Gamaredon, APT37, Mustang Panda, APT28, SideCopy, and UAC-0099. Again, there could be different explanations for this.
Another interesting case that is worth analyzing in detail is [Content_Types].xml with hash 4ea40d34cfcaf69aa35b405c575c7b87e35c72246f04d2d0c5f381bc50fc8b3d, which is only shared by APT28 and APT29.
You can see the list of hashes in the appendix of this blog

AI to the rescue

The images reused by attackers seem to be a promising idea we decided to further explore.
We used the VirusTotal API to download and unzip a set of Office documents used for delivery, this way we obtained all the images. Then we used Gemini to automatically describe what these images were about.
Figure 18: Results obtained with Gemini after processing some of the embedded images in the documents used by the threat actors
Figure 18 shows some examples of images that were incorporated by certain actors. There were also other results that were not helpful, mainly related to images that did not show a logo or anything specific that indicated what they were.
Figure 19: Results obtained with Gemini after processing some of the embedded images in the documents used by the threat actors
Using the VirusTotal API to obtain documents that you might be looking for and combining the results with Gemini to analyze possible images automatically, can potentially help analysts to monitor potential suspicious documents and create your own database of samples using specific images, for example Government images or specific images about companies. This approach is interesting not only for threat hunting but also for brand monitoring.

PDF Documents

Images dropped by Acrobat Reader

Unlike Office documents, PDF files don't contain embedded XML files or images, although some PDF files may be created from Office documents. Some of our sandboxes include Adobe Acrobat Reader to open PDF documents which generates a thumbnail of the first page in BMP format. This image is stored in the directory C:\Users\\AppData\LocalLow\Adobe\Acrobat\DC\ConnectorIcons. Consequently, our sandboxes provide this BMP image as a dropped file from the PDF, allowing us to pivot.
To illustrate this functionality, see Figure 20 attributed to Blind Eagle, a cybercrime actor associated with Latin America.
Figure 20: Content of a PDF file related to Blind Eagle threat actor
Figure 20 was provided by our sandbox. In the "relations" tab, we can see the BMP image as a dropped file:
Figure 21: BMP file generated by the sandbox that can be used for pivoting
The BMP file itself also shows relations, in particular up to 6 PDF files in the "execution parents" section. In other words, there are other PDFs that look exactly the same as the initial one.
Typically, many actors engaged in financial crime activities utilize widely spread PDF files to deceive their victims, making this approach highly valuable. Another interesting example we found involves phishing activities targeting a Russian bank called "Tinkoff Bank."
The PDF files urge victims to accept an invitation from this bank to participate in a project.
Figure 22: The content of a PDF file used by cybercrime actors
Applying the same approach we identified 20 files with identical content, most of them classified as malicious by AV engines.
Figure 23: BMP file generated by the sandbox that can be used for pivoting, in this case having other 20 PDF with the same image
There are some limitations to this approach. For instance, the PDF file might be slightly modified (font size, some letter/word, color, …) which would generate a completely different hash value for the thumbnail we use to pivot.

Images dropped by Acrobat Reader

Just like the BMP files generated by Acrobat Reader, there are other interesting files that might be dropped during sandbox detonation. These artifacts can be useful on some occasions.
The first example is a JavaScript file dropped in another PDF attributed to Blind Eagle.
Figure 24: BMP file generated by the sandbox that can be used for pivoting, another example of Blind Eagle threat actor
The dropped JavaScript file's name during the PDF execution was "Chrome Cache Entry: 566" indicating that this file was likely generated by opening an URL through Chrome, possibly triggered by a sandbox click on a link within the PDF. Examining the file's contents, we observe some strings and variables in Spanish.
Figure 25: Artifact generated by the sandbox via Google Chrome when connecting to a domain
The strings “registerResourceDictionary”, “sampleCustomStringId”, “rf_RefinementTitle_ManagedPropertyName” are related to Microsoft SharePoint as we were able to confirm. These files were probably generated after visiting sites that have Microsoft Sharepoint functionalities. We found that all the PDFs containing this artifact dropped by Google Chrome came from a website belonging to the Government of Colombia.
Figure 26: Flow of artifact generation related to Google Chrome that can be used for pivoting in VirusTotal

Email files

Many threat actors incorporate images in their emails, such as company logos, to deceive victims. We used this to identify several mailing campaigns where the same footer was used.

Campaign impersonating universities

On November 13, 2023, we details about a new campaign impersonating universities, primarily located in Latin America. By leveraging the presence of social network logos in the footer, we were able to find more universities in different continents targeted by the same attacker.
Figure 27: Email impersonating a university that contains multiple images
Figure 27 shows several images, including the University of Chile's logo and building, as well as images related to social networks like YouTube, Facebook, and Twitter.
Pivoting through the images related to the University of Chile doesn't yield good results, as it's too specific. However, if we pivot through the images of the social media footer, represented as email attachments, we can observe multiple files using the same logo.
Figure 28: Using the images from the email footer to pivot and identify new emails
Just by analyzing one of the social media logos, we saw 33 email parents, all of them related to the same campaign.
Figure 29: Other emails identified through image pivoting techniques

Campaigns impersonating companies

Another usual case is adding a company logo in the email signatures to enhance credibility. Delivery companies, banks, and suppliers are some of the most observed images during our research.
For example, this email utilizes the corporate image of China Anhui Technology Import and Export Co Ltd in the footer.
Figure 30: Email impersonating a Chinese organization using the company logo in the footer
Pivoting through the image we found 20 emails using the same logo.
Figure 31: Other emails identified through image pivoting techniques

Wrapping up

We can potentially trace malicious actors by examining artifacts linked to the initial spreading documents, and in the case of images, AI can help us automate potential victim identification and other hunting aspects.
In order to make this even easier, we are planning to incorporate a new bundled_files field into the IOCs JSON structure, which basically will help to create livehunt rules. In the meantime you can use vt_behaviour_files_dropped.sha256 for those scenarios where the files are dropped.
In certain situations, the styles.xml and [Content_Types].xml files within office documents can provide valuable clues for identifying and tracking the same threat actor. The method presented here offers an alternative to traditional hunting or pivoting techniques, serving as a valuable addition to a team's hunting activities.
We hope you found this research interesting and useful, and as always we are happy to hear your feedback.
Happy hunting!

APPENDIX

[Content_types].xml shared between threat actors

[Content_Type].xml sha256

Shared by

3d8578fd41d766740a1f1ddef972a081436a2d70ab1e9552a861e58d8bbf5321

APT33, APT32

4ea40d34cfcaf69aa35b405c575c7b87e35c72246f04d2d0c5f381bc50fc8b3d

APT29, APT28

4f7fa7433484b4e655d185719613e2f98d017590146d15eedc1aa1d967636b3a

FIN7, Gamaredon, APT28, APT32

529739886f6402a9cd5a8064ece73eef19c597ef35c0bc8d09390e8b4de9041b

FIN7, APT33, TA505, Mustang Panda

688dca40507fb96630f3df80442266a0354e7c24b7df86be3ea57069b25d12c6

Gamaredon, APT33

6f1ac5f0ebfb7e97d3dc4100e88eaab10016a5cac75e1251781f2ea12477af51

Gamaredon, Hazy Tiger, APT33,

7796c382cd4c7c4ae3bcf2eed4091fbb20a2563ca88f2aecadb950ad9cf661f8

Razor Tiger, APT28, UAC-0099

b4fa7f3faa0510e4d969219bceec2a90e8a48ff28e060db3cdd37ce935c3779c

Razor Tiger, SideCopy

dfa90f373b8fd8147ee3e4bfe1ee059e536cc1b068f7ec140c3fc0e6554f331a

Gamaredon, APT37, Mustang Panda, APT28, UAC-0099, SideCopy

fe98b3bcf96f9c396eb9193f0f9484ef01d3017257300cc76098854b1f103b69

FIN7, Hazy Tiger

ff5a5ba3730a8d2ec0cbad39e5edf4ad502107bd0ef8a5347f29262b3dfe8a43

Mustang Panda, APT32

styles.xml shared between threat actors

Styles.xml sha256

Shared by

13ed55637980452662cb6838a2931a5e54fbed5881bcbae368b3d189d3a01930

APT28, UAC-0099, Razor Tiger

2de1fc9c48c4b0190361c49cdb053fd39cf81e32f12c82d08f88aec34358257f

Hazy Tiger, Gamaredon, APT33

59df7787c7cf5408481ae149660858d3af765a0c2cd63d6309b151380f92adb2

TA505, Gamaredon

8f590f608f0719404a1731bb70a6ce2db420fd61e5a387d5b3091d47c7e21ac9

APT28, FIN7, Razor Tiger, APT32, APT33

de392cd4bf1d650a9cf8c6d24e05e0605bf4eaf1518710f0307d8aceb9e5496c

Hazy Tiger, FIN7

e16f84c5fd1df6af1a1f2049f7862f4ea460765863476afb17e78edee772d35b

APT32, SideCopy, Mustang Panda, Razor Tiger

Qakbot Takedown: A Brief Victory in the Fight Against Resilient Malware

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Qakbot Takedown: A Brief Victory in the Fight Against Resilient Malware

Prior botnet takedowns like Emotet and TrickBot have shown that sophisticated malware operations, like Qakbot, can often rebuild infrastructure and return from disruptions in new forms

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August 30, 2023

Qakbot takedown and seizure

A global law enforcement operation has successfully disrupted the infrastructure of the Qakbot botnet, striking a major—though likely temporary—blow to a dominant player in the cybercriminal underground supply chain. 

Qakbot, familiarly Qbot, has been a major cyber threat since 2007, infecting victims’ computers to steal financial information and distribute additional malware payloads like ransomware. As a result of the takedown, more than 700,000 infected devices worldwide were identified and cleaned of the malware. The DOJ also announced the seizure of $8.6M in cryptocurrency in illicit profits.

While there is no doubt that the Qakbot takedown is a major win in the fight against cybercrime, it may only provide short-term relief in the fight against a notoriously resilient cybercriminal ecosystem.

‘Swiss Army knife’

A Swiss Army knife of cybercrime tools, Qakbot was a complex malware that opened remote access to victims’ systems, stole credentials and financial information, and downloaded additional malware payloads. Its modular architecture enabled frequent updates to add new capabilities over its 15+ years of operation.

“The collaborative endeavors of these authoritative bodies exemplify the power of a comprehensive, multi-agency approach, designed to maximize its impact..”

Ian Gray, VP Of Intelligence

Qakbot has been a versatile workhorse for cybercriminals. Its banking trojan functionality has been used to pilfer payment information and intercept financial transactions. As a loader, it distributed ransomware such as ProLock to extort victims.

Qakbot has also powered large-scale spam email campaigns and brute force attacks. Its worm-like spreading kept it entrenched in infected networks. By providing the backdoor access and distribution channel for other malware, Qakbot played a key supporting role in the cybercrime ecosystem. Botnets like Emotet and TrickBot operated similarly, loading additional threats onto compromised systems. These jack-of-all-trades botnets have proven lucrative for their criminal operators.

A history of temporary relief

Prior botnet takedowns like Emotet and TrickBot have shown that sophisticated malware operations can often rebuild infrastructure and return from disruptions in new forms.

In the case of Emotet, the botnet came back online in 2022 using new techniques after its infrastructure was dismantled in 2021. TrickBot also persisted despite takedown attempts and remains an active threat. This resiliency highlights the challenges law enforcement faces in permanently eliminating cyber threats.

While takedowns temporarily degrade capabilities, dedicated cybercriminal groups adapt to avoid further disruption. New malware families also inevitably emerge to fill the gaps left by larger takedowns. For example, BazarLoader and ZLoader rose to prominence as loader malware after the Emotet takedown.

Yet despite their disruptions, resilient botnets often return and new ones emerge. After prior actions against Emotet and TrickBot, the lingering demand in underground markets brought them back in adapted new forms. Bots remain attractive tools for cybercriminals thanks to their versatility, automation, and money generating potential.

While Qakbot’s infrastructure was disrupted, its operators may attempt to rebuild or evolve their techniques. Sustained pressure on botnet financial flows, developer communities, and other aspects of the cybercrime supply chain is needed to deter future attacks. For now, the coordinated Qakbot takedown bought time and degraded the capabilities of a dominant cybercrime player.

The fight against cybercrime must be persistent and comprehensive

The Qakbot takedown was effectively coordinated among global governments, including France, Germany, Latvia, Romania, the Netherlands, the UK, and the US, as well as the private sector. The collaborative endeavors of these authoritative bodies exemplify the power of a comprehensive, multi-agency approach, designed to maximize its impact.

Law enforcement and the private sector should to continue coordinating takedowns while also focusing on detecting new malware variants early, disrupting communication channels, and following the money trails of criminal enterprises.

Cyber hygiene and threat awareness across organizations must also improve to reduce vulnerability to malware infections, including loaders and trojans that distribute threats like Qakbot. Technical controls like endpoint detection, network monitoring, and patching are also key.

Ultimately, defeating cybercrime requires comprehensive strategy across law enforcement operations, cybersecurity practices, and international collaboration. The Qakbot takedown represents meaningful progress, but the world must remain vigilant against an adaptable threat landscape.

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Flashpoint Ignite enables organizations to proactively identify and mitigate cyber and physical risk that could imperil people, places, and assets. To unlock the power of great threat intelligence, get started with a free Flashpoint trial.

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How to Combat Check Fraud: Leveraging Intelligence to Prevent Financial Loss

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How to Combat Check Fraud: Leveraging Intelligence to Prevent Financial Loss

Criminals increasingly steal checks and sell them on illicit online marketplaces, where check fraud-related services are common. Intelligence is helping the financial sector fight back

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May 18, 2023

Stolen checks and the impact of Covid-19

Checks are one of the most vulnerable legacy payment methods. Check fraud can actively affect the bottom lines (and reputations) of banks, financial services organizations, government entities, and many other organizations that utilize checks. According to the Financial Crimes Enforcement Network (FinCEN), fraud—including check fraud—is “the largest source of illicit proceeds in the US” as well as “one of the most significant money laundering threats to the United States.” 

Targeting the mail

Criminals target the US mail system to steal a variety of checks. In fact, there is a nationwide surge in check fraud schemes targeting the US mail and shipping system, as threat actors continue to steal, alter, and sell checks through illicit means and channels. 

This includes personal checks and tax refund checks to government or government assistance-related checks (Social Security payments, e.g.). Business checks are also a primary target because they are often written for larger amounts and may take longer for the victim to identify fraudulent activity.

In 2022 alone, US banks filed 680,000 check fraud-related suspicious activity reports (SARs). This represents a nearly two-fold increase from 2021 (which itself represents a 23 percent YoY increase from 2020). This surge in check fraud has been exacerbated by Covid-19 Economic Impact Payments (EIPs) under the CARES Act, which presented threat actors with a new avenue to attempt to commit fraud.

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Check fraud: A mini use case 

In order to mitigate and ultimately prevent check-fraud-related risks, it’s crucial for financial intelligence and fraud teams to understand what threat actors seek, how they work, and where they operate. 

This begins, as we detail below, with intelligence into the communities, forums, and marketplaces where check fraud occurs as well as the tools that enable deep understandings, timely insights, and measurable action. 

Below is an intelligence narrative, in three acts, that tells the story of how transactions involving some of the above examples could play out.

Act I: Obtain

Threat actors are known to remove mail from individuals’ mailboxes and parcel lockers using blue box “arrow” master keys. These arrow keys are often stolen from USPS employees, which has led to numerous incidents of harassment, threats, and even violence. Generally, arrow keys are sold within illicit community chats and/or the deep and dark web, often fetching upwards of $3,000 per key.

In general, when it comes to check fraud, threat actors may sell or seek: 

  • Mailbox keys
  • Stolen checks
  • Check alteration services (physical and digital)
  • Synthetic identity provisioning
  • Drop account sharing
  • Counterfeit check creation
  • Writing a check with insufficient funds behind it
  • Insider access
A screenshot of Flashpoint’s Ignite platform, showing the results of an OCR-driven search for stolen checks.

Act II: Alter

Check alteration comes in two forms: “washing” and “cooking.” 

Washing refers to the process of altering a check by chemically removing ink and replacing the newly empty spaces with a different value, recipient name, or another fraud-enabling alteration. 

Cooking involves digitally scanning the check and altering text or values through digital means.

Act III: Monetize

Threat actors will deposit the fraudulent check and rapidly withdraw the funds from an ATM, or sell a stolen or altered check on an illicit marketplace or chat group, and then receive payment, often via cryptocurrency.

Four key elements of actionable check fraud intelligence

Financial institutions should rely on four essential intelligence-led technologies, tools, or capabilities to effectively combat check fraud.

1) Visibility and access to illicit communities and channels

To prevent check fraud, organizations should focus on a few key places. Financially motivated threat actors operate and share information on messaging apps like Telegram and other open-source channels, as well as illicit marketplaces on the deep and dark web. Therefore, it is imperative for financial intelligence and fraud teams to have access to the most relevant check fraud-related threats across the internet. 

Keep in mind, however, that accessing these communities is not always straightforward and, if done frivolously, can compromise an investigation.

2) Timeliness and curated alerting

Intelligence is often only as good as it is relevant. Flashpoint enables security and intelligence practitioners to bubble the most important, mission-critical intelligence through our real-time alerting capability, which allows users to receive notifications for keywords and phrases that relate to their mission, such as check fraud-related lingo and activity. 

Essential Reading

The Flashpoint Guide to Card Fraud for the Financial Services Sector

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In addition to real-time alerts, analysts can rely on curated alerting and saved searches to track topics of long-term interest. Flashpoint Ignite enables analysts to research particular accounts and their recent activity and matches transactions to their respective ATM slips and institution address. This helps to ensure the accuracy of the information found within these communities and marketplaces before raising any alarms, as many scammers post false content. 

This approach is particularly valuable as check fraudsters often share crucial information such as preferred methodologies, social media handles, and geolocations that can aid in identifying malicious activities. In addition, by closely observing newly emerging trends, such as the evolution of pandemic relief fraud to refund fraud to check fraud, analysts can proactively develop robust preventative measures to mitigate risks before these tactics become widespread.

3) Actionable OCR and Video Search

In order to provide “material proof,” cyber threat actors will often tout and post an image of a check in a chat application or marketplace in hopes of increasing the likelihood of a successful transaction. Optical Character Recognition (OCR) technology can capture important information about check fraud attempts, since actors often share images of the fraudulent check or subsequent monetization transactions. OCR alerts are customizable with the financial institution’s name and common phrases used on checks to enhance accuracy.

Images of fraudulent checks provide valuable insights into the fraud attempt, including the check’s unique identifier, the account holder’s name, the bank’s name and address, and the endorsement signature. By analyzing these details, financial institutions and law enforcement agencies can identify patterns and leads that can help them track down the perpetrators and prevent future fraudulent activity.

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Moreover, ATM withdrawal slips can offer critical information about the transaction, such as the location of the ATM, the time of the deposit, and the type of account used. This data is useful when taking appropriate measures to prevent similar attempts and protect customers’ assets. With the help of advanced technologies like Flashpoint’s OCR, institutions can quickly extract and analyze this information to generate real-time alerts and take prompt action to prevent monetary losses.

An essential investigative component, Flashpoint’s industry-first video search technology, like its OCR capability, enables fraud and cyber threat intelligence (CTI) teams to surface logos, text, explicit content, and other critical intelligence to enhance investigations.

Combat check fraud with Flashpoint

Flashpoint delivers the intelligence that enables financial institutions to combat check fraud at scale. With timely, actionable, and accurate intelligence, financial institutions can mitigate and prevent financial loss, protect customer assets, and track down perpetrators. Get a free trial today to learn how:

  • A financial services customer detected more than $4M in illicitly marketed assets, including checks and compromised accounts, using Flashpoint’s OCR capabilities. 
  • A customer received 125 actionable alerts in a single month equated to over $15M in potentially averted losses.
  • An automated alert enabled a customer to identify a threat actor’s specific operations, saving them over $5M.

Request a demo today.

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