OSINT stands for open-source intelligence, and it refers to all publicly available information on the open internet which has been obtained without any special requirements (paywalls, invitations, etc.).
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What Is Open Source Intelligence: The Importance of OSINT in Your Organization’s Threat Landscape
In order to gain the upper hand, security strategies must include a diverse means of gathering intelligence, both for a predictive and reactive approach. Open-source intelligence has become crucial to completing this picture
A modern security professional’s job is becoming more and more complex, and it’s no surprise considering the influx of unexpected places where threats are beginning to surface. In order to gain the upper hand, your security strategy must include a diverse means of gathering intelligence, both for a predictive and reactive approach. In an era where content is being created at an exponential rate – 90% of the world’s data was created in the last 2 years alone – the future of security must be intelligence-led.
A major source of intelligence that cannot be overlooked is the vast amount of publicly available information (PAI) being produced by consumers, hackers, newsmakers, and bloggers every single day. Globally, almost every person and organization is communicating across multiple platforms and networks, as well as handling personal and corporate needs virtually – such as shopping, travel planning, and data management. Finding like-minded communities and audiences online is the goal; however, wherever you have people congregating, especially if there is potential for monetary gain, the risk of nefarious behavior rises. This has created an increased need for open-source intelligence (OSINT) and OSINT platforms.
What is OSINT?
Open-source intelligence, or OSINT, refers to the process of gathering information from public, legal data sources to serve a specific function. Some open sources might include social media, blogs, news, and the dark web.
The concept of OSINT very basically works like this:
Public information exists → data is gathered → information is analyzed for intelligence.
The purpose of seeking information from public data varies on the type of insights you wish to gather. Many industries and professionals look to open sources to uncover workplace security threats, protect executives, prevent loss, manage assets, gauge brand sentiment, and monitor conversations for creating marketing strategies. Intelligence professionals use certain types of OSINT and OSINT platforms for investigations, prosecution, evidence gathering, and events monitoring.
What is finished intelligence?
Finished intelligence, or ‘cooked’ data, is raw data that has undergone processing to gain context and become actionable. The collection, processing, and analysis of raw data are foundational steps along the threat intelligence lifecycle.
In other words, raw data is unaltered from its original source. This could look like a network’s traffic data logs, dark web discussions, or even public social media posts.
Finished intelligence would look like a report summarizing the context interpreted from relevant raw data points and suggested security responses.
Finished intelligence services allow organizations to skip the raw data collection and analysis steps, which are time-consuming and require skilled analysts. Those steps are instead supported by automation and machine learning capabilities, and/or third-party analyst teams.
The main goal of finished intelligence is to operationalize the process so organizations can respond faster to active threats and invest less time and resources in gathering and contextualizing large volumes of raw data. The result is a finished intelligence report that the client can immediately act on. While expensive, finished intelligence solutions can be ideal for private sector organizations seeking a “comprehensive” security solution.
What can OSINT tools do?
OSINT tools can identify and separate entities within a data set (parsing), and organize and display those entities by category to glean meaning and avoid redundancies (normalizing). OSINT tools can also index raw data so that it’s quickly and easily searchable and filtered for relevancy.
Access to publicly available online data is often free, but the true value lies in what can be analyzed and extracted from the data. Organizations using OSINT for security and intelligence require the ability to detect key information quickly and efficiently. They can do so by using robust OSINT tools.
The vast amount of online data is overwhelming to sift through, and with the complex ways today’s online threat actors conduct themselves, the vulnerabilities to organizations are becoming more elusive. Open-source data, when gathered, enriched, and monitored effectively, can be extremely valuable for predicting, analyzing, and reviewing incidents at every stage of their occurrence. But where to begin?
Where you look for information depends on what you want to find. Running a Google search is a simple form of OSINT, but when you are responsible for the safety and security of a particular person, place, or asset, you need to be casting a keen eye over multiple sources. Criminal behavior tends to be hidden, and it is unlikely a surface web search will take you there.
What threats can OSINT help with?
The emergence of intelligence-led security is a direct result of the varied and growing range of on-the-ground threats that are being plotted, planned, discussed, and executed online. As our physical and digital realities are becoming more and more interlaced, individuals and organizations are creating more informational weaknesses and thereby more opportunities for an ever-widening range of attacks and other threats to occur.
OSINT tools can be invaluable for handling internal processes such as:
Brand protection
Workplace and facilities safety issues
Real-time event monitoring
Executive protection and force protection
Natural disasters and incident response
OSINT for enterprise security
Global enterprises are operating in the age of digital transformation. This has plenty of benefits for companies, helping improve customer experience, productivity, and resource management. But along with these benefits, wider technology adoption also means increasing opportunities for compromise.
This stands true for almost any industry with an online presence—including finance, retail, and transportation, which make up some of the world’s most cyber-targeted industries. Digital transformation also affects physical security and cyber-enabled threats as criminals adopt anonymized online communication channels. What do these risks look like?
Cyber threats
Data breaches targeting corporate and customer information
OSINT tools support enterprise security teams in identifying and responding to these risks. Social media networks provide real-time updates from on-the-ground threats near executives and other physical assets like offices, employees, and corporate events. Paste sites, forums, and marketplaces across the deep and dark web often publish the earliest indicators of data breaches and executive-targeted doxxing. Anonymized discussions on these covert sites help security teams identify fraud, insider threats, and cyber-attack strategies directly from the source.
Combined with other risk management feeds and tools, OSINT platforms provide security teams with more context and earlier risk indicators so they can respond faster and avoid blind spots.
But many organizations face challenges in responding to risk quickly and effectively, especially as more enterprise teams—from marketing to IT and compliance—require OSINT.
According to a 2021 report by Forrester Research, 42% of corporate decision-makers are currently improvising when it comes to risk management. Almost 70% claim that risk information is siloed across their departments and only 29% are confident in their risk management technologies.
What do security teams need from OSINT platforms to address information gaps?
Broad data coverage
There are thousands of different online sources out there, from social media platforms to the deep and dark web, where relevant risk data is hiding. Many risk management tools focus only on one data source type—such as social media or the dark web—to help security teams find relevant risk information. A more ideal solution combines a variety of these sources within one platform so teams don’t have to juggle more tools than are necessary. This can just lead to information gaps and slower responses.
Simplicity and usability
Not everyone who needs access to online risk data has a technical background. OSINT solutions should be accessible to anyone in an organization without the click-heavy processes and complex interfaces that are typical of IT-based risk management software. Personnel should be able to easily and quickly separate the most pertinent data and view it in a digestible format.
Speed-to-information
OSINT tools that prioritize real-time data allow security teams to get critical insights faster. This gives organizations a much better chance of avoiding or mitigating threats from all angles.
Collaboration features
For risks where cross-department visibility is necessary, OSINT solutions should offer permission settings and collaboration features that allow teams to view each other’s activities or tackle a security threat together when there is overlap.
Integrations
Many global organizations already have a suite of risk management tools. OSINT solutions should be able to easily integrate with third-party solutions, whether they include a UI or funnel data directly into existing systems.
OSINT for national security: What national security initiatives does OSINT support?
Counter-terrorism and counter extremism
Foreign jihadist groups like the Islamic State and Al-Qaeda are no longer solely responsible for the threat of terrorism and extremism. Domestic extremist movements based on conspiracy theories, right-wing ideology, and discriminatory worldviews now also pose serious national security threats. Public online spaces are leveraged similarly for both extremist types, playing a huge role in spreading propaganda, recruitment, financing, and sometimes planning. This data helps governments understand how extremist groups operate so they can then predict public safety risks and protect citizens and assets from domestic and global terrorism.
Addressing misinformation and disinformation
National security threats have expanded to include online influence campaigns, which can compromise democratic processes and lead to real-world security risks. Disinformation (which is engineered to deliberately deceive) and misinformation (false information that is not necessarily spread with malicious intent) is widely prevalent online. Monitoring online spaces is crucial for tracking disinformation campaigns so governments can mitigate their impact and keep the public safer and more informed.
Cybersecurity
Breaching government data is financially and politically lucrative for lone-wolf attackers, organized hacking groups, and nation-state actors. Sophisticated technologies are available to a greater diversity of adversaries than ever before. Persistent online threats include breaches and cyber espionage targeting classified data, network attacks disrupting critical infrastructure, and botnets enabling malware attacks and information warfare. Paste sites, discussion forums, and marketplaces on the deep and dark web often provide early indicators of breaches, malware, and attack techniques. Combining this open-source data with other cybersecurity feeds helps intelligence teams more confidently predict, mitigate, and investigate cyber compromise.
Transportation security
National transportation networks, including airports, seaports, and highways, make up a country’s critical infrastructure. When this infrastructure is compromised, governments and security teams need to stay prepared and alerted to prevent damage to assets, data, and human life. Online data plays a crucial role in providing the intelligence required for informed transportation security planning and incident response. For intelligence teams, social media networks and deep and dark web content can:
Provide the earliest alerts for location-based threats near airports, seaports, and other transportation hubs
Inform security teams about tactics used to bypass security systems or commit attacks, particularly at airports
Monitor for threats directly targeted at the security/public sector organizations themselves
Stay alert to vulnerable data that could compromise a transportation network’s digital or physical security
Addressing national and global crises
When a national crisis occurs, governments must make timely, informed decisions to protect their data, assets, and citizens. As we’ve seen with the COVID-19 pandemic, adversaries co-opt real-world events in their strategies. Whether it’s a natural disaster, public health crisis, or terrorist attack, intelligence teams need to know how and where the crisis is occurring and how to allocate response resources. Online spaces are often the earliest sources of information to provide this context—for example, social media users often post public updates and images from the scene of a crisis. Aligning this data with other feeds can help provide a faster and more informed response.
Intelligence professionals require specialized software to collect this information and generate actionable intelligence. Commercial OSINT tools help intelligence teams gather open-source data more efficiently and align with a team’s unique requirements. Because intelligence teams often work with their own interfaces and tooling, they often require direct access to raw data that can be plugged into their existing systems.
How do OSINT platforms address data overload?
The intelligence community is increasingly challenged by growing volumes of online data available for collection, processing, analysis, and triage. The western world is also facing a data analyst shortage coupled with a growing demand for military AI. As a result, data scientists in the public sector tend to handle more complex tasks, developing tooling and data sets to support lower-level analysts on intuitive platforms.
Intelligence teams are also challenged by a lack of access to some emerging online sources. For example, fringe networks (like alt-tech platforms, deep and dark web imageboards and paste sites, etc.) do not offer their own API or are unavailable through commercial API providers. To gather data from these sources, analysts are often required to create dummy accounts, make group requests, and navigate networks manually. This requires a significant amount of HUMINT resources that could be allocated to other areas of the intelligence cycle.
To address these challenges, OSINT tools must:
Improve data coverage by providing access to relevant sources, including fringe web spaces, that are not commonly available through commercial, off-the-shelf vendors.
Leverage machine learning capabilities. AI is a major priority for governments, helping analysts process and contextualize intelligence more efficiently.
Be intuitive and user-friendly for lower-level intelligence analysts, providing more efficient workflows and better speed-to-information.
Types of OSINT tools
There are many types of OSINT tools on the market, both free and paid. The truth is, no single OSINT tool is 100% effective as a standalone solution. Rather, combining a variety of solutions is the best practice. Remember that the best OSINT tools will have a geographical element, providing a digital window to view data by location. The tools you choose will depend on the specific needs of your organization. Here are some types of OSINT tools to consider:
Social media monitoring
Our OSINT Platform allows organizations to use online information to gain situational awareness on the ground. Security teams utilize predictive intelligence and real-time crisis management, as well as brand monitoring and post-incident review.
Deep and dark web monitoring
The Flashpoint product suite includes targeted, automated collection systems that capture information from the deep and dark web, enabling your security and intelligence teams to identify and prioritize relevant threats and leverage their intelligence to act quickly.
Email hacks
Have I Been Pwned? is a free online resource to check if your email address has been put at risk due to a data breach.
Twitter monitoring
TweetDeck allows you to view multiple timelines in one user view. TweetDeck allows a user to create specific filters such as specific activity and geographical locations.
Internet archives
Wayback Machine is an internet archive tool, like a library, of historical data. This tool allows the user to search the history of archived websites, metadata, text contents, and TV news captions.
Link analysis
Maltego is a graphical link analysis tool that accelerates and simplifies complex investigations by allowing users to build visualizations and connections between disparate data sets.
Conclusion
Business is happening online, and today’s security strategies need to be informed by the masses of social data being created every day. Gathering, filtering, and analyzing this information requires the advanced capabilities of OSINT platforms.
Both amateur and professional criminals are using sophisticated strategies and seemingly innocuous networks to conduct illicit business. More and more media networks are being infiltrated and used outside their intended purposes. Evolving threats require predictive and intelligence-led security strategies. Security teams must gather intelligence from every corner that they can. Open source threat intelligence software is essential for any enterprise using public data sources to inform their decision-making.
Not only can OSINT help protect against hidden intentional attacks such as information leaks, theft, and fraud, but it also has the ability to gain real-time and location-based situational awareness to help protect people at work, at events, institutions, or even the shopping mall. The right OSINT toolkit will give your security and intelligence teams the upper hand.
Last week, a friend of mine reached out with a query: a contact in his address book had sent him a suspicious email. As it turns out, it was. In this blog post, we'll have a quick look at an Office 365 phishing campaign, which turned out to be massive. This type of phishing has been on the rise for a while now (at least since 2017), and it's important to point out, as seemingly attacks are only increasing.
Analysis
As mentioned earlier, Office 365 (O365) phishing isn't new, but it is definitely prevalent. A high-level overview of a typical attack is as follows:
Figure 1 - High-level overview of typical O365 phishing
A typical flow of such an attack may be as follows:
An attacker sends an O365 spearphishing email, likely from a spoofed or fake email address;
The user is enticed to click on the link, or open the attachment which includes a link;
The user will then unknowingly enter their credentials on the fake O365 page;
Credentials get sent back to the attacker;
Attacker will access the now compromised user's mailbox; and,
The cycle repeats: the attacker will send spearphish emails to all of the compromised user's contacts - with this difference, it's coming from a legitimate sender.
This is exactly what happened to a friend of mine: he got sent an email from a legitimate email address, which was a contact in his address book - only the sender never intentionally sent this email!
Let's have a look at the infection chain.
The initial email
The initial email sent looked as follows:
Figure 2 - "P.AYMENT COPY"
Clicking on the "OPEN" button would redirect you to a legitimate but compromised Sharepoint (part of O365) webpage. Seeing as a legitimate business has been compromised, I won't post the link here. Its web administrators have been notified.
Figure 3 - "Access OneDrive"
The PDF document
Next step is hosting a PDF named "INVOICE.PDF", which entices the user to access OneDrive to view the shared file. If the user were to click on "OPEN PDF HERE":
Finally, clicking on "Login with Office 365" will redirect the user to the final phishing page, which will look as follows:
Figure 5 - Final landing page
The final landing page is as follows: https://happymachineit[.]info/Michael/b4fb042ba2b3b35053943467ac22a370/7hsfabvj2b0b9rguzbzw910d.php
When entering credentials, they will be sent off to the attacker, and the cycle from Figure 1 will repeat itself. Note that other scenarios are possible, for example:
The attacker may try to (re-)sell credentials that have been gathered so far on criminal forums
The attacker may send more targeted spearphishes to potentially interesting victims
The attacker may attempt to access other services or accounts using the same user/password combination
In short, there's countless other possibilities.
The phishing infrastructure
Avid readers will have noticed the phishing website uses a valid SSL certificate, which has the following details:
This means the certificate is a local and self-signed one. In other words, if you are accessing a secure website, and you see "server.localhost.com" as the SSL certificate, do NOT trust it. This is sometimes from an automatic setup from the hosting provider.
Performing a search with RiskIQ's PassiveTotal as well as VirusTotal, and after filtering results, we obtain a whopping total of 875uniqueOffice 365 phishing sites, hosted on that IP alone! It appears this campaign has been active since December 2018.
Searching a bit further, it appears the whole ASN (which is a collection of IP prefixes controlled by a single entity, typically an ISP), AS48666 is in fact riddled with Office 365 as well as other phishing sites. Using URLscan.io we can quickly gauge the ASN is hosting multiple phishing sites for Office 365 as well as Adobe:
Figure 6 - AS48666 hosting badness
General Info:
Geo: Russian Federation (RU) —
AS: AS48666 - AS-MAROSNET Moscow, Russia, RU
Registrar: RIPENCC
As shown in this blog post, one IP address can host tons of phishing instances, while the ASN controls multiple IPs. Bonus bad IP: 178.159.36[.]120.
Detection
For the phishing websites itself, any network traffic that resolves to the IP above.
I've noticed there are countless similar PDFs from this same campaign. Due to the way these are created (likely in bulk), a simple Yara rule can be developed as follows:
The Yara rule can be found on Pastebin here or on Github Gist here.
Note: in specific instances, this rule may false-positive - so use at your own will.
The following MITRE ATT&CK techniques are relevant:
There isn't much to disinfect, since there's no actual malware involved.
However, if you have been affected by this phishing campaign, do the following immediately:
Contact your network and/or system administrator or managed services provider if you have one and wait for their response - if not;
Note down the phishing page/URL, then close any open phishing pages - in fact, close the whole browser;
Perform an antivirus scan with your installed product, and a scan with another application, for example Malwarebytes (better be safe than sorry);
Change your O365 password immediately;
Change passwords on other websites where you used the same combination;
Reach out to the people in your address book you were compromised and they are not to open your email(s) or at least not any attachments or links from your email(s);
Verify your "Sent" emails folder (or "Outbox") for any suspicious activity. If there are no Sent emails - the attacker may have deleted them, or you may have a full compromise on your hands.;
Verify any (newly) created rules in your mail application (in this case O365), for example, verify there are no new forwarding rules or perhaps rules that delete new incoming emails - forwarding rules and deletion rules are sometimes set up by an attacker to gather more information or as an attempt to remain hidden; and,
File a complaint with your CERT, local police station, or whichever authority would handle such cases. If you are unsure how to do so, have a look here for assistance.
Prevention
Block the IP (or whole subnet 178.159.36[.]0/24) mentioned in this report in your firewall or proxy or other appliance;
Use strong and preferably unique passwords (use a password manager);
Set up 2FA for accounts or, preferably, MFA (multi-factor authentication);
Enable, deploy or implement anti-spam and anti-phishing protection;
Enable, deploy, or implement a URL phishing filter;
Trust, but verify: "did this contact really need to send me a "Payment Copy"? - if needed, verify via a phone call - not via email;
Be generally cautious with links and attachments. Do not click on links or open attachments from unknown senders;
If possible, use Firefox with NoScript enabled; and,
If you're in an organisation: create or organise user awareness training.
Conclusion
Phishing has been around for a long time - Office 365 phishing, on the other hand, has been around since, well, Office 365 was created. Every time a new service is created, you can imagine that phishing emails targeting that service will follow - maybe one month later, perhaps a year later - but they will.
Always try to be vigilant and follow the prevention tips mentioned above to stay safe.
Joe Gray* // You may have heard about a new genealogy tool called Family Tree Now. It is a (seemingly) 100% free tool (more on that later) that allows you to […]