Incident Score: Analysis & Impact (FOR1769045821)
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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 FOR1769045821.
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: 1232151, the industry type: Computer and Network Security and the number of employees: 15789 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 293 and after the incident was 287 with a difference of -6 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 December 2025, a cybersecurity incident called "Sicarii Ransomware: A Geopolitically Motivated Threat Emerges with Israeli Affiliations" came to light.
In December 2025, a new ransomware-as-a-service (RaaS) operation named Sicarii surfaced on underground platforms, distinguishing itself through its overt Israeli or Jewish affiliations.
The disruption is felt across the environment, affecting Systems in Arab and Muslim countries (geo-fenced to exclude Israel), and exposing System credentials, browser data, application information (Discord, Slack, Telegram, cryptocurrency wallets).
Formal response steps have not been shared publicly yet.
Overall, the incident is a reminder of why proactive monitoring and strong governance matter.
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 Exploit Public-Facing Application (T1190) with high confidence (90%), supported by evidence indicating exploits Fortinet devices using CVE-2025-64446 and External Remote Services (T1133) with moderate to high confidence (80%), supported by evidence indicating attacks exposed RDP services. Under the Execution tactic, the analysis identified User Execution: Malicious File (T1204.002) with moderate to high confidence (70%), supported by evidence indicating copies itself to temp directory as svchost_random.exe and Command and Scripting Interpreter (T1059) with moderate confidence (60%), supported by evidence indicating performs network reconnaissance via ARP requests. Under the Defense Evasion tactic, the analysis identified Virtualization/Sandbox Evasion (T1497) with high confidence (90%), supported by evidence indicating anti-virtualization phase detects sandbox environments, Masquerading (T1036) with moderate to high confidence (80%), supported by evidence indicating uses fake error messages to evade analysis, and Indicator Removal: Clear Windows Event Logs (T1070.001) with moderate confidence (50%), supported by evidence indicating likely clears logs post-compromise (implied by sophistication). Under the Discovery tactic, the analysis identified System Network Configuration Discovery (T1016) with high confidence (90%), supported by evidence indicating performs aggressive network reconnaissance via ARP requests, File and Directory Discovery (T1083) with moderate to high confidence (70%), supported by evidence indicating harvests browser data, application information, and Remote System Discovery (T1018) with moderate to high confidence (80%), supported by evidence indicating scans for RDP services and lateral movement targets. Under the Credential Access tactic, the analysis identified Credentials from Password Stores (T1555) with high confidence (90%), supported by evidence indicating harvests system credentials, browser data, cryptocurrency wallets and OS Credential Dumping (T1003) with moderate to high confidence (70%), supported by evidence indicating collects credentials from Discord, Slack, Telegram. Under the Collection tactic, the analysis identified Data from Local System (T1005) with high confidence (90%), supported by evidence indicating packages data into collected_data.zip for exfiltration and Automated Collection (T1119) with moderate to high confidence (80%), supported by evidence indicating harvests browser data, application information systematically. Under the Exfiltration tactic, the analysis identified Exfiltration Over C2 Channel (T1041) with high confidence (90%), supported by evidence indicating exfiltrates collected_data.zip via file.io and Exfiltration Over Web Service (T1567) with moderate to high confidence (80%), supported by evidence indicating uses file.io for data exfiltration. 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 tests connectivity via google.com/generate_204 and Ingress Tool Transfer (T1105) with moderate to high confidence (70%), supported by evidence indicating likely downloads additional payloads (implied by RaaS sophistication). Under the Persistence tactic, the analysis identified Boot or Logon Autostart Execution: Registry Run Keys / Startup Folder (T1547.001) with moderate to high confidence (80%), supported by evidence indicating establishes persistence via registry modifications, Create or Modify System Process: Windows Service (T1543.003) with moderate to high confidence (80%), supported by evidence indicating creates new services for persistence, and Create Account: Local Account (T1136.001) with high confidence (90%), supported by evidence indicating creates new user accounts with hardcoded credentials. Under the Impact tactic, the analysis identified Data Encrypted for Impact (T1486) with high confidence (90%), supported by evidence indicating uses AES-GCM (256-bit keys) to encrypt files with .sicarii extension, Inhibit System Recovery (T1490) with high confidence (90%), supported by evidence indicating corrupts bootloader files to force system shutdown, and Data Destruction (T1485) with moderate to high confidence (80%), supported by evidence indicating destructive payload beyond typical ransomware tactics. Under the Lateral Movement tactic, the analysis identified Exploitation of Remote Services (T1210) with high confidence (90%), supported by evidence indicating exploits CVE-2025-64446 for lateral movement in networks and Remote Services: Remote Desktop Protocol (T1021.001) with moderate to high confidence (80%), supported by evidence indicating targets exposed RDP services for lateral movement. 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/FOR1769045821
- Fortinet CyberSecurity Rating page: https://www.rankiteo.com/company/fortinet
- Fortinet Rankiteo Cyber Incident Blog Article: https://blog.rankiteo.com/for1769045821-fortinet-vulnerability-december-2025/
- Fortinet CyberSecurity Score History: https://www.rankiteo.com/company/fortinet/history
- Fortinet CyberSecurity Incident Source: https://cybersecuritynews.com/new-sicarii-raas-operation-attacks-exposed-rdp-services/
- 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