- 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.
Western sources
- MISP Galaxy (CFR tagging)Austria
- MicrosoftAustria
- ThreatActor.info (Malpedia et al.)Austria
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