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BlackCat/ALPHV Ransomware Indicators of Compromise

Once the malware establishes access, it compromises Active Directory user and administrator accounts.

This FLASH is part of a series of FBI reports to disseminate known indicators of compromise (IOCs) and tactics, techniques and procedures (TTPs) associated with ransomware variants identified through FBI investigations. As of March 2022, BlackCat/ALPHV ransomware as a service (RaaS) had compromised at least 60 entities worldwide and is the first ransomware group to do so successfully using RUST, considered to be a more secure programming language that offers improved performance and reliable concurrent processing. BlackCat-affiliated threat actors typically request ransom payments of several million dollars in Bitcoin and Monero but have accepted ransom payments below the initial ransom demand amount. Many of the developers and money launderers for BlackCat/ALPHV are linked to Darkside/Blackmatter, indicating they have extensive networks and experience with ransomware operations.

BlackCat/ALPHV ransomware leverages previously compromised user credentials to gain initial access to the victim system. Once the malware establishes access, it compromises Active Directory user and administrator accounts. The malware uses Windows Task Scheduler to configure malicious Group Policy Objects (GPOs) to deploy ransomware. Initial deployment of the malware leverages PowerShell scripts, in conjunction with Cobalt Strike, and disables security features within the victim’s network. BlackCat/ALPHV ransomware also leverages Windows administrative tools and Microsoft Sysinternals tools during compromise.

BlackCat/ALPHV steals victim data prior to the execution of the ransomware, including from cloud providers where company or client data was stored.

Read more at IC3

Homeland Security Todayhttp://www.hstoday.us
The Government Technology & Services Coalition's Homeland Security Today (HSToday) is the premier news and information resource for the homeland security community, dedicated to elevating the discussions and insights that can support a safe and secure nation. A non-profit magazine and media platform, HSToday provides readers with the whole story, placing facts and comments in context to inform debate and drive realistic solutions to some of the nation’s most vexing security challenges.

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