GINC-APT-0122 · Targeted, sponsor unknown

Denim Tsunami

Also DEV-0291, DSIRF, KNOTWEED.

Category
Targeted, sponsor unknown · Targeted intrusions with no sponsor attributed.
Origin
Austria(high confidence)
Sources
8 sources carry it
Identifier
GINC-APT-0122 · denim-tsunami

What it is

Denim Tsunami is a threat actor group that has been involved in targeted attacks against European and Central American customers. They have been observed using multiple Windows and Adobe 0-day exploits, including one for CVE-2022-22047, which is a privilege escalation vulnerability. Denim Tsunami developed a custom malware called Subzero, which has capabilities such as keylogging, capturing screenshots, data exfiltration, and running remote shells. They have also been associated with the Austrian spyware distributor DSIRF.

Names

The names each vendor, agency and source gives it. Naming differs by who tracks the actor, so one group carries many.

Microsoft
DEV-0291
Other names
DSIRF, KNOTWEED

Attribution

Each attribution is a claim: who makes it, and to whom. Western and Eastern sources are kept apart, as they often disagree.

Tools

The tools and malware families the sources tie to it.

  • Chisel
  • Curl
  • Grouper2
  • Internal Monologue
  • Inveigh
  • Jumplump
  • Lockless
  • PharpPrinter
  • Ping Castle
  • Remote Utilities
  • RemoteCMD
  • RemotePC
  • Rubeus
  • SCShell
  • Seatbelt
  • SharpExec
  • SharpHound3
  • SharpOxidResolver
  • SpoolSample
  • StandIn
  • Subzero
  • Windows Remote Desktop
  • Xploit
  • mimikatz

Sources

  • Malpedia malpedia.caad.fkie.fraunhofer.de