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BlackMatter Ransomware

malware OpenTrojan Threat Intelligence

RaaS double extortion

Source Attribution

Origin
MITRE
Source
CISA advisory AA21-291A
Verified
2026-08-26T16:07:01.550Z
Confidence
high

Source: CISA advisory AA21-291A · Verified: 2026-08-26T16:07:01.550Z · Confidence: high

Security Timeline

  • discovered BlackMatter Ransomware first observed
  • updated Encyclopedia entry reviewed (Phase 45C)

Quick Answer

BlackMatter is an RaaS that emerged after DarkSide and REvil disruptions, targeting enterprise networks. (attributes recorded from CISA advisory AA21-291A).

Definition

BlackMatter is an RaaS that emerged after DarkSide and REvil disruptions, targeting enterprise networks.

Overview

BlackMatter is an RaaS that emerged after DarkSide and REvil disruptions, targeting enterprise networks.

Behavior

  • Successor to DarkSide/REvil clusters
  • Azure AD abuse

First Seen

2021-07

Target

RaaS double extortion

Malware Intelligence

Family: BlackMatter Ransomware

Techniques: T1486, T1078

Targets: RaaS double extortion

Behavior:
  • Successor to DarkSide/REvil clusters
  • Azure AD abuse

Related

References

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  5. Sources — NVD, CISA KEV, MITRE ATT&CK, vendor advisories.
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