Incident Score: Analysis & Impact (FOR1787120638)
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Rankiteo Score Impact Analysis
Key Highlights From The Incident Analysis
- Timeline of Fortinet's Vulnerability and lateral movement inside company's environment.
- Overview of affected data sets, including SSNs and PHI, and why they materially increase incident severity.
- How Rankiteo’s incident engine converts technical details into a normalized incident score.
- How this cyber incident impacts Fortinet Rankiteo cyber scoring and cyber rating.
- Rankiteo’s MITRE ATT&CK correlation analysis for this incident, with associated confidence level.
Full Incident Analysis Transcript
In this Rankiteo incident briefing, we review the Fortinet breach identified under incident ID FOR1787120638.
The analysis begins with a detailed overview of Fortinet's information like the linkedin page: https://www.linkedin.com/company/fortinet, the number of followers: 1310862, the industry type: Computer and Network Security and the number of employees: 16380 employees
After the initial compromise, the video explains how Rankiteo's incident engine converts technical details into a normalized incident score. The incident score before the incident was 397 and after the incident was 359 with a difference of -38 which is could be a good indicator of the severity and impact of the incident.
In the next step of the video, we will analyze in more details the incident and the impact it had on Fortinet and their customers.
On 01 February 2025, a cybersecurity incident called "Medusa Ransomware Targets Critical Infrastructure in Escalating RaaS Campaign" came to light.
The Cybersecurity and Infrastructure Security Agency (CISA), FBI, and Multi-State Information Sharing and Analysis Center (MS-ISAC) have issued a joint advisory (AA25-071A) warning of ongoing Medusa ransomware attacks against critical infrastructure sectors.
The disruption is felt across the environment, affecting Over 300 organizations, and exposing Yes.
In response, and began remediation that includes Immediate patching of internet-facing systems and Network segmentation.
The case underscores how Ongoing, and recommending next steps like Immediate patching of internet-facing systems, Network segmentation and Monitoring for suspicious activity (unauthorized use of remote management tools, abnormal PowerShell commands, attempts to disable endpoint protection).
Finally, we try to match the incident with the MITRE ATT&CK framework to see if there is any correlation between the incident and the MITRE ATT&CK framework.
The MITRE ATT&CK framework is a knowledge base of techniques and sub-techniques that are used to describe the tactics and procedures of cyber adversaries. It is a powerful tool for understanding the threat landscape and for developing effective defense strategies.
MITRE ATT&CK® Correlation Analysis
Rankiteo's analysis has identified several MITRE ATT&CK tactics and techniques associated with this incident, each with varying levels of confidence based on available evidence. Under the Initial Access tactic, the analysis identified Phishing (T1566) with high confidence (90%), supported by evidence indicating phishing...are primary entry points, Exploit Public-Facing Application (T1190) with high confidence (90%), supported by evidence indicating exploitation of known vulnerabilities (CVE-2024-1709, CVE-2023-48788), and Valid Accounts (T1078) with moderate to high confidence (80%), supported by evidence indicating initial access brokers...paid between $100 and $1 million for network access. Under the Execution tactic, the analysis identified Command and Scripting Interpreter (T1059) with high confidence (90%), supported by evidence indicating powerShell, cmd.exe, Windows Management Instrumentation, User Execution: Malicious File (T1204.002) with moderate to high confidence (80%), supported by evidence indicating ransomware encryptor, typically named *gaze.exe*, and System Services: Service Execution (T1569.002) with moderate to high confidence (80%), supported by evidence indicating deployed via PsExec, PDQ Deploy, or BigFix. Under the Persistence tactic, the analysis identified External Remote Services (T1133) with moderate to high confidence (80%), supported by evidence indicating legitimate tools like AnyDesk, Atera, and ConnectWise. Under the Privilege Escalation tactic, the analysis identified Exploitation for Privilege Escalation (T1068) with moderate to high confidence (70%), supported by evidence indicating exploitation of known vulnerabilities (CVE-2024-1709, CVE-2023-48788). Under the Defense Evasion tactic, the analysis identified Indicator Removal: Clear Windows Event Logs (T1070.001) with moderate to high confidence (70%), supported by evidence indicating deletes volume shadow copies, Impair Defenses: Disable or Modify Tools (T1562.001) with high confidence (90%), supported by evidence indicating disables security tools, terminates critical services, and Masquerading (T1036) with moderate to high confidence (80%), supported by evidence indicating legitimate tools like AnyDesk, Atera, and ConnectWise. Under the Credential Access tactic, the analysis identified OS Credential Dumping (T1003) with high confidence (90%), supported by evidence indicating mimikatz is used to extract credentials. Under the Discovery tactic, the analysis identified Account Discovery (T1087) with moderate to high confidence (70%), supported by evidence indicating living-off-the-land techniques...Windows Management Instrumentation and File and Directory Discovery (T1083) with moderate to high confidence (70%), supported by evidence indicating data exfiltration...Rclone facilitates data exfiltration. Under the Lateral Movement tactic, the analysis identified Exploitation of Remote Services (T1210) with moderate to high confidence (80%), supported by evidence indicating legitimate tools like AnyDesk, Atera, and ConnectWise and Remote Services: SMB/Windows Admin Shares (T1021.002) with moderate to high confidence (70%), supported by evidence indicating lateral movement...PowerShell, cmd.exe. Under the Collection tactic, the analysis identified Data from Local System (T1005) with high confidence (90%), supported by evidence indicating stealing data before encrypting systems. Under the Command and Control tactic, the analysis identified Application Layer Protocol: Web Protocols (T1071.001) with moderate to high confidence (80%), supported by evidence indicating tor-based site...Tox messaging platform and Ingress Tool Transfer (T1105) with moderate to high confidence (70%), supported by evidence indicating legitimate tools like AnyDesk, Atera, and ConnectWise. Under the Exfiltration tactic, the analysis identified Exfiltration Over C2 Channel (T1041) with high confidence (90%), supported by evidence indicating rclone facilitates data exfiltration and Exfiltration Over Web Service: Exfiltration to Cloud Storage (T1567.002) with moderate to high confidence (70%), supported by evidence indicating threatening to leak or sell it via a Tor-based site. Under the Impact tactic, the analysis identified Data Encrypted for Impact (T1486) with high confidence (90%), supported by evidence indicating files are encrypted with AES-256 and appended with the *.medusa* extension, Inhibit System Recovery (T1490) with high confidence (90%), supported by evidence indicating deletes volume shadow copies, and Service Stop (T1489) with moderate to high confidence (80%), supported by evidence indicating terminates critical services. These correlations help security teams understand the attack chain and develop appropriate defensive measures based on the observed tactics and techniques.
Sources & References
- Fortinet Rankiteo Cyber Incident Details: https://www.rankiteo.com/company/fortinet/incident/FOR1787120638
- Fortinet CyberSecurity Rating page: https://www.rankiteo.com/company/fortinet
- Fortinet Rankiteo Cyber Incident Blog Article: https://blog.rankiteo.com/for1787120638-fortinet-vulnerability-february-2025/
- Fortinet CyberSecurity Score History: https://www.rankiteo.com/company/fortinet/history
- Fortinet CyberSecurity Incident Source: https://cyberpress.org/cisa-warns-of-medusa-ransomware-as-a-service-attacks/
- Rankiteo A.I CyberSecurity Rating methodology: https://www.rankiteo.com/Images/rankiteo_algo.pdf
- Rankiteo TPRM Scoring methodology: https://static.rankiteo.com/model/rankiteo_tprm_methodology.pdf