Incident Score: Analysis & Impact (SEM1767939926)
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 Semperis's Ransomware 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 Semperis 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 Semperis breach identified under incident ID SEM1767939926.
The analysis begins with a detailed overview of Semperis's information like the linkedin page: https://www.linkedin.com/company/semperis, the number of followers: 36576, the industry type: Computer and Network Security and the number of employees: 609 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 755 and after the incident was 646 with a difference of -109 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 Semperis and their customers.
Simulated water facility recently reported "Ransomware Tabletop Simulation at InfoSecurity Europe", a noteworthy cybersecurity incident.
A ransomware tabletop simulation conducted by Semperis at InfoSecurity Europe, involving red and blue teams to test response strategies for a water facility under cyberattack.
The disruption is felt across the environment, affecting Water facility infrastructure.
In response, teams activated the incident response plan.
The case underscores how Simulated exercise (not a real incident), teams are taking away lessons such as Importance of disaster recovery planning, monitoring systems for anomalies, understanding vulnerabilities, and cross-team communication. Public sector vulnerabilities due to bureaucracy, lack of funds, and technical skills, and recommending next steps like Prepare disaster recovery plans, Conduct regular tabletop simulations and Improve cross-team communication.
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 moderate confidence (50%), supported by evidence indicating compromised the water facility’s systems (simulated) and Supply Chain Compromise (T1195) with lower confidence (30%), supported by evidence indicating public sector vulnerabilities due to bureaucracy, lack of funds. Under the Execution tactic, the analysis identified User Execution: Malicious File (T1204.002) with moderate confidence (60%), supported by evidence indicating red team...compromised the water facility’s systems (simulated). Under the Impact tactic, the analysis identified Data Encrypted for Impact (T1486) with high confidence (90%), supported by evidence indicating data encryption such as Yes (simulated ransomware encryption) and Defacement (T1491) with lower confidence (40%), supported by evidence indicating potential halt of critical business functions (water treatment). Under the Defense Evasion tactic, the analysis identified Masquerading (T1036) with moderate confidence (50%), supported by evidence indicating attackers exploit even minor deviations from normal system behavior and Impair Defenses: Disable or Modify Tools (T1562.001) with lower confidence (40%), supported by evidence indicating over-reliance on disparate tools (40%). Under the Command and Control tactic, the analysis identified Application Layer Protocol (T1071) with moderate confidence (50%), supported by evidence indicating red team demanded a ransom (simulated C2 for negotiation). Under the Exfiltration tactic, the analysis identified Exfiltration Over C2 Channel (T1041) with lower confidence (30%), supported by evidence indicating ransomware attacks are inevitable (implied data staging). These correlations help security teams understand the attack chain and develop appropriate defensive measures based on the observed tactics and techniques.
Sources & References
- Semperis Rankiteo Cyber Incident Details: https://www.rankiteo.com/company/semperis/incident/SEM1767939926
- Semperis CyberSecurity Rating page: https://www.rankiteo.com/company/semperis
- Semperis Rankiteo Cyber Incident Blog Article: https://blog.rankiteo.com/sem1767939926-semperis-ransomware-june-2025/
- Semperis CyberSecurity Score History: https://www.rankiteo.com/company/semperis/history
- Semperis CyberSecurity Incident Source: https://www.techradar.com/pro/you-have-to-find-the-needle-in-the-haystack-how-preparation-can-save-your-business-in-a-cyberattack
- 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