Incident Score: Analysis & Impact (STE1766793304)
The details regarding individual company incidents & reports gives you full view from every side.
Rankiteo Score Impact Analysis
Key Highlights From The Incident Analysis
- Timeline of Stellantis's Cyber Attack 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 Stellantis 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 Stellantis breach identified under incident ID STE1766793304.
The analysis begins with a detailed overview of Stellantis's information like the linkedin page: https://www.linkedin.com/company/stellantis, the number of followers: 2447601, the industry type: Motor Vehicle Manufacturing and the number of employees: 113145 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 571 and after the incident was 555 with a difference of -16 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 Stellantis and their customers.
On 25 December 2025, Chrysler disclosed Ransomware issues under the banner "Everest Ransomware Group Claims Breach of Chrysler Systems".
On December 25, the Everest ransomware group published a post on its dark web leak site claiming it had breached Chrysler systems, exfiltrating 1088 GB of data, including Salesforce-related information and extensive personal and operational records tied to customers, dealers,...
The disruption is felt across the environment, affecting Salesforce, Internal databases and CRM systems, and exposing 1088 GB of data, including 105 GB of Salesforce-related information.
Formal response steps have not been shared publicly yet.
The case underscores how Unconfirmed.
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 Valid Accounts (T1078) with moderate to high confidence (70%), with evidence including 105 GB of Salesforce-related records exfiltrated, and access to internal databases and CRM systems and Exploit Public-Facing Application (T1190) with moderate confidence (50%), supported by evidence indicating salesforce and internal systems breached (implied access vector). Under the Credential Access tactic, the analysis identified Cloud Instance Metadata API (T1552.005) with moderate confidence (60%), supported by evidence indicating salesforce-related records compromised (cloud platform access) and OS Credential Dumping (T1003) with moderate confidence (50%), supported by evidence indicating access to internal databases and HR records (implied credential theft). Under the Exfiltration tactic, the analysis identified Transfer Data to Cloud Account (T1537) with high confidence (90%), supported by evidence indicating 1088 GB of data exfiltrated, including Salesforce records and Exfiltration Over Alternative Protocol (T1048) with moderate to high confidence (80%), supported by evidence indicating data exfiltration via dark web leak site (implied non-standard protocol). Under the Impact tactic, the analysis identified Data Encrypted for Impact (T1486) with lower confidence (30%), supported by evidence indicating everest ransomware group involved (typical ransomware behavior) and Service Stop (T1489) with lower confidence (40%), supported by evidence indicating potential disruption to customer service processes (implied impact). Under the Defense Evasion tactic, the analysis identified Valid Accounts: Cloud Accounts (T1078.004) with moderate to high confidence (70%), supported by evidence indicating salesforce data accessed (abuse of valid cloud credentials) and Hide Artifacts: Hidden Files and Directories (T1564.001) with moderate confidence (50%), supported by evidence indicating structured databases and spreadsheets exfiltrated (implied stealth). These correlations help security teams understand the attack chain and develop appropriate defensive measures based on the observed tactics and techniques.
Sources & References
- Stellantis Rankiteo Cyber Incident Details: https://www.rankiteo.com/company/stellantis/incident/STE1766793304
- Stellantis CyberSecurity Rating page: https://www.rankiteo.com/company/stellantis
- Stellantis Rankiteo Cyber Incident Blog Article: https://blog.rankiteo.com/ste1766793304-cyber-attack-december-2025/
- Stellantis CyberSecurity Score History: https://www.rankiteo.com/company/stellantis/history
- Stellantis CyberSecurity Incident Source: https://hackread.com/everest-ransomware-group-chrysler-data-breach/
- 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