CISA Alert (AA21-291A) BlackMatter Ransomware
First seen in July 2021, BlackMatter is ransomware-as-a-service (Raas) tool that allows the ransomware’s developers to profit from cybercriminal affiliates (i.e., BlackMatter actors) who deploy it against victims. BlackMatter is a possible rebrand of DarkSide, a RaaS which was active from September 2020 through May 2021. BlackMatter actors have attacked numerous U.S.-based organizations and have demanded ransom payments ranging from $80,000 to $15,000,000 in Bitcoin and Monero.
Tactics, Techniques, and Procedures
This advisory provides information on cyber actor TTPs obtained from the following sample of BlackMatter ransomware, which was analyzed in a sandbox environment, as well as from trusted third parties: SHA-256:
706f3eec328e91ff7f66c8f0a2fb9b556325c153a329a2062dc85879c540839d. (Note: click here to see the sample’s page on VirusTotal.)
Click here for a PDF version of this report.