Incident Score: Analysis & Impact (BEL1768388694)
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Rankiteo Score Impact Analysis
Key Highlights From The Incident Analysis
- Timeline of Bellagio'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 Bellagio 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 Bellagio breach identified under incident ID BEL1768388694.
The analysis begins with a detailed overview of Bellagio's information like the linkedin page: https://www.linkedin.com/company/bellagio, the number of followers: 23391, the industry type: Hospitality and the number of employees: 2505 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 781 and after the incident was 626 with a difference of -155 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 Bellagio and their customers.
Bell Ambulance recently reported "Ransomware Attacks on Bell Ambulance and Alabama Ophthalmology Associates", a noteworthy cybersecurity incident.
Two healthcare organizations confirmed data breaches impacting over 100,000 individuals each due to ransomware attacks.
The disruption is felt across the environment, and exposing Personal and protected health information, including names, dates of birth, SSNs, driver’s license numbers, medical and health insurance information, and financial data, with nearly ['114,000', '131,000'] records at risk.
In response, and stakeholders are being briefed through Public data security notices.
The case underscores how Ongoing, with advisories going out to stakeholders covering Public data security notices issued.
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 network intrusion detected on February 13, 2025 and Valid Accounts (T1078) with moderate confidence (60%), supported by evidence indicating hackers accessed files containing sensitive data. Under the Execution tactic, the analysis identified User Execution: Malicious File (T1204.002) with moderate to high confidence (70%), supported by evidence indicating ransomware attacks resulting in data breaches. Under the Credential Access tactic, the analysis identified OS Credential Dumping (T1003) with moderate confidence (60%), supported by evidence indicating sSNs, driver’s license details, financial data compromised. Under the Collection tactic, the analysis identified Data from Local System (T1005) with moderate to high confidence (80%), supported by evidence indicating hackers accessed files containing names, dates of birth, medical records and Data from Information Repositories (T1213) with moderate to high confidence (70%), supported by evidence indicating 200 GB of data allegedly stolen by Medusa ransomware group. Under the Exfiltration tactic, the analysis identified Exfiltration Over C2 Channel (T1041) with moderate to high confidence (80%), supported by evidence indicating data exfiltration confirmed (200 GB claimed by Medusa). Under the Impact tactic, the analysis identified Data Encrypted for Impact (T1486) with high confidence (90%), supported by evidence indicating ransomware attacks resulting in data breaches. Under the Defense Evasion tactic, the analysis identified Obfuscated Files or Information (T1027) with moderate confidence (60%), supported by evidence indicating ransomware groups (Medusa, BianLian) involved and Impair Defenses: Disable or Modify Tools (T1562.001) with moderate confidence (50%), supported by evidence indicating unauthorized access since January 22, 2025 (undetected for days). These correlations help security teams understand the attack chain and develop appropriate defensive measures based on the observed tactics and techniques.
Sources & References
- Bellagio Rankiteo Cyber Incident Details: https://www.rankiteo.com/company/bellagio/incident/BEL1768388694
- Bellagio CyberSecurity Rating page: https://www.rankiteo.com/company/bellagio
- Bellagio Rankiteo Cyber Incident Blog Article: https://blog.rankiteo.com/bel1768388694-bell-ambulance-ransomware-april-2025/
- Bellagio CyberSecurity Score History: https://www.rankiteo.com/company/bellagio/history
- Bellagio CyberSecurity Incident Source: https://www.securityweek.com/two-healthcare-orgs-hit-by-ransomware-confirm-data-breaches-impacting-over-100000/
- 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