Incident Score: Analysis & Impact (EVOEIS1775594384)
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 Eisai Co., Ltd.'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 Eisai Co., Ltd. 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 Eisai Co., Ltd. breach identified under incident ID EVOEIS1775594384.
The analysis begins with a detailed overview of Eisai Co., Ltd.'s information like the linkedin page: https://www.linkedin.com/company/eisaiglobal, the number of followers: 12102, the industry type: Pharmaceutical Manufacturing and the number of employees: 679 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 756 and after the incident was 641 with a difference of -115 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 Eisai Co., Ltd. and their customers.
On 10 June 2023, Eisai disclosed Ransomware issues under the banner "Eisai Ransomware Attack".
Japanese pharmaceutical giant Eisai confirmed it fell victim to a ransomware attack over the weekend, prompting an immediate company-wide response.
The disruption is felt across the environment, affecting some internal and external computer systems taken offline, and exposing potential data leaks under investigation, plus an estimated financial loss of under review.
In response, teams activated the incident response plan, moved swiftly to contain the threat with measures like some internal and external computer systems taken offline.
The case underscores how Ongoing.
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 Data Encrypted for Impact (T1486) with high confidence (90%), with evidence including fell victim to a ransomware attack, and some internal and external computer systems taken offline and Exploit Public-Facing Application (T1190) with moderate confidence (50%), with evidence including attack threatening the organization’s existence, and no specific attack vector disclosed. Under the Execution tactic, the analysis identified User Execution: Malicious File (T1204.002) with moderate to high confidence (70%), supported by evidence indicating ransomware attack detected on Saturday night. Under the Impact tactic, the analysis identified Data Encrypted for Impact (T1486) with high confidence (90%), with evidence including ransomware attack, and some internal and external computer systems taken offline and Data Destruction (T1485) with moderate confidence (60%), supported by evidence indicating potential data leaks under investigation. Under the Exfiltration tactic, the analysis identified Exfiltration Over C2 Channel (T1041) with moderate to high confidence (80%), supported by evidence indicating potential data leaks under investigation. Under the Defense Evasion tactic, the analysis identified Impair Defenses: Disable or Modify Tools (T1562.001) with moderate to high confidence (70%), supported by evidence indicating some internal and external computer systems taken offline as a precaution. These correlations help security teams understand the attack chain and develop appropriate defensive measures based on the observed tactics and techniques.
Sources & References
- Eisai Co., Ltd. Rankiteo Cyber Incident Details: https://www.rankiteo.com/company/eisaiglobal/incident/EVOEIS1775594384
- Eisai Co., Ltd. CyberSecurity Rating page: https://www.rankiteo.com/company/eisaiglobal
- Eisai Co., Ltd. Rankiteo Cyber Incident Blog Article: https://blog.rankiteo.com/evoeis1775594384-eisai-evotec-ransomware-june-2023/
- Eisai Co., Ltd. CyberSecurity Score History: https://www.rankiteo.com/company/eisaiglobal/history
- Eisai Co., Ltd. CyberSecurity Incident Source: https://www.fiercepharma.com/pharma/eisai-hit-ransomware-attack-launches-investigation-possible-data-leaks
- 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