Incident Score: Analysis & Impact (CROMICBITSOPSENPROESEMCA1783117511)
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 Bitdefender'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 Bitdefender 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 Bitdefender breach identified under incident ID CROMICBITSOPSENPROESEMCA1783117511.
The analysis begins with a detailed overview of Bitdefender's information like the linkedin page: https://www.linkedin.com/company/bitdefender, the number of followers: 211928, the industry type: Software Development and the number of employees: 2314 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 757 and after the incident was 737 with a difference of -20 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 Bitdefender and their customers.
A newly reported cybersecurity incident, "New Modular Malware Framework 'Avalon' Unveiled in Sophisticated Phishing Attack", has drawn attention.
Cybersecurity researchers have identified a previously unknown modular malware framework, Avalon, distributed via a multi-stage phishing campaign designed to evade traditional security controls.
The disruption is felt across the environment, affecting Windows systems with Chromium-based browsers, Firefox, cryptocurrency wallets, Discord, Slack, Teams, and security tools from Microsoft Defender, SentinelOne, CrowdStrike, Sophos, Elastic Endpoint, FortiEDR, ESET, McAfee, and Bitdefender, and exposing Credentials, cryptocurrency wallet data, business documents, software development files, virtual infrastructure files.
Formal response steps have not been shared publicly yet.
The case underscores how Ongoing, teams are taking away lessons such as The Avalon framework demonstrates advanced evasion techniques, AI-assisted development, and modular capabilities that enable threat actors to conduct multi-stage attacks with lower technical barriers. Traditional security controls may be insufficient against such sophisticated malware, and recommending next steps like Implement multi-layered security controls, including behavioral analysis and AI-driven threat detection, Monitor for unusual activity in Event Tracing for Windows (ETW) and security tool logs and Educate employees on phishing risks, especially those involving ISO images and password-protected archives.
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 Phishing: Spearphishing Attachment (T1566.001) with high confidence (90%), supported by evidence indicating spoofed legal document email directing recipients to a password-protected archive and User Execution: Malicious Link (T1204.001) with moderate to high confidence (80%), supported by evidence indicating windows shortcut (Secure Document CA-283505.pdf.lnk) triggers malware deployment. Under the Execution tactic, the analysis identified User Execution: Malicious File (T1204.002) with high confidence (90%), supported by evidence indicating shortcut executes MSBuild project within ISO to load .NET assembly and Trusted Developer Utilities Proxy Execution: MSBuild (T1127.001) with moderate to high confidence (80%), supported by evidence indicating mSBuild project used to execute embedded .NET assembly. Under the Defense Evasion tactic, the analysis identified Impair Defenses: Disable or Modify Tools (T1562.001) with high confidence (95%), supported by evidence indicating disables Event Tracing for Windows (ETW) and targets security tools (Defender, SentinelOne, etc.), Obfuscated Files or Information (T1027) with moderate to high confidence (80%), supported by evidence indicating malicious files embedded within ISO image to reduce detection, and Indicator Removal: File Deletion (T1070.004) with moderate to high confidence (70%), supported by evidence indicating anti-forensic measures include direct disk manipulation to corrupt partition data. Under the Credential Access tactic, the analysis identified Credentials from Password Stores (T1555) with high confidence (90%), supported by evidence indicating credential harvesting from Chromium-based browsers, Firefox, cryptocurrency wallets, Credentials from Password Stores: Credentials from Web Browsers (T1555.003) with high confidence (90%), supported by evidence indicating harvests credentials from Chromium-based browsers and Firefox, and Steal Application Access Token (T1528) with moderate to high confidence (70%), supported by evidence indicating targets apps like Discord, Slack, and Teams for credential theft. Under the Discovery tactic, the analysis identified Account Discovery (T1087) with moderate to high confidence (80%), supported by evidence indicating reconnaissance to prioritize high-value systems for lateral movement and File and Directory Discovery (T1083) with moderate to high confidence (70%), supported by evidence indicating encrypts files tied to business operations, software development, virtual infrastructure. Under the Lateral Movement tactic, the analysis identified Remote Services (T1021) with moderate to high confidence (70%), supported by evidence indicating framework includes lateral movement capabilities. Under the Collection tactic, the analysis identified Data from Local System (T1005) with high confidence (90%), supported by evidence indicating steals credentials, cryptocurrency wallet data, business documents and Automated Collection (T1119) with moderate to high confidence (80%), supported by evidence indicating modular framework automates data exfiltration to remote server. Under the Command and Control tactic, the analysis identified Application Layer Protocol: Web Protocols (T1071.001) with high confidence (90%), supported by evidence indicating downloads next-stage payload over HTTPS; C2 communications to helloxcherry.com and Ingress Tool Transfer (T1105) with moderate to high confidence (80%), supported by evidence indicating downloads next-stage payload over HTTPS. Under the Exfiltration tactic, the analysis identified Exfiltration Over C2 Channel (T1041) with high confidence (90%), supported by evidence indicating data exfiltration to helloxcherry.com; command polling for instructions. Under the Impact tactic, the analysis identified Data Encrypted for Impact (T1486) with high confidence (95%), supported by evidence indicating crownX ransomware uses Windows Cryptography API to encrypt files, Inhibit System Recovery (T1490) with high confidence (90%), supported by evidence indicating terminates Volume Shadow Copy Service and deletes shadow copies, and Data Manipulation: Stored Data Manipulation (T1565.001) with moderate to high confidence (70%), supported by evidence indicating anti-forensic measures include direct disk manipulation to corrupt partition data. These correlations help security teams understand the attack chain and develop appropriate defensive measures based on the observed tactics and techniques.
Sources & References
- Bitdefender Rankiteo Cyber Incident Details: https://www.rankiteo.com/company/bitdefender/incident/CROMICBITSOPSENPROESEMCA1783117511
- Bitdefender CyberSecurity Rating page: https://www.rankiteo.com/company/bitdefender
- Bitdefender Rankiteo Cyber Incident Blog Article: https://blog.rankiteo.com/cromicbitsopsenproesemca1783117511-sophos-crowdstrike-microsoft-proton-drive-sentinelone-bitdefender-eset-mcafee-cyber-attack-march-2026/
- Bitdefender CyberSecurity Score History: https://www.rankiteo.com/company/bitdefender/history
- Bitdefender CyberSecurity Incident Source: https://thehackernews.com/2026/07/new-avalon-malware-framework-packs.html
- 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