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Dissecting Sodinokibi Ransomware Attacks: Bringing Incident Response and Intelligence Together in the Fight

Category Details
Threat Actors Sodinokibi (REvil), QakBot operators, Valak operators, ransomware affiliates (e.g., Clop, Ryuk, Egregor).
Campaign Overview Specialized and collaborative ransomware attacks leveraging phishing emails for initial access, reconnaissance, data exfiltration, and ransomware deployment.
Target Regions/Victims Organizations targeted via phishing campaigns, with emphasis on systems managing critical data such as financial, healthcare, and intellectual property.
Methodology Initial access via phishing emails, lateral movement with stolen credentials, recon with native tools, and ransomware deployment after data exfiltration.
Product Targeted Microsoft Office, Active Directory, SMB protocol, Windows Defender (disabled during attacks), Kaseya (zero-day exploitation).
Malware Reference Sodinokibi (REvil), QakBot, Valak, Cobalt Strike, NetSupport Manager, Rclone, MegaSync, MegaCmd, WinSCP, Mimikatz.
Tools Used Excel 4.0 macros, VBA macros, rundll32.exe, plink.exe, ngrok.exe, PSExec, AdFind, nltest, WMI utility, custom PowerShell payloads.
Vulnerabilities Exploited Kaseya zero-day, weak email security for phishing, misconfigured SMB, poorly monitored administrative accounts.
TTPs Phishing for initial access, living-off-the-land tools for recon, credential harvesting with Mimikatz, lateral movement via PowerShell and services, double extortion tactic.
Attribution Sodinokibi infrastructure linked to ransomware affiliates; shared techniques and tools suggest connections among multiple groups.
Recommendations Implement LAPS, reduce SMB attack surface, use EDR, enforce least privilege access, deploy MFA, segment internal networks, and manage vulnerabilities systematically.
Source Security Intelligence

Read full article: https://securityintelligence.com/posts/sodinokibi-ransomware-incident-response-intelligence-together/

The above summary has been generated by an AI language model

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Source: Advanced Threats – Security Intelligence

Published on: September 3, 2021

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