Seedworm — Threat Actor Profile, Campaigns & Targets

Threat entity extracted from intelligence sources

Frequency
13
occurrences
First Seen
November 19, 2025
Last Seen
May 11, 2026

Seedworm is a apt_group tracked across 6 threat clusters and 13 intelligence report mentions on ThreatCluster. First observed November 19, 2025; most recent activity May 11, 2026.

Related Threat Clusters

Recent Intelligence Reports

  • Tr Muddying Tracks State Sponsored Shadow Behind Chaos Ransomware — www.rapid7.com · May 11, 2026
  • MuddyWater Behind Chaos Ransomware False Flag — Socprime · May 7, 2026
  • Iranian threat group used Chaos ransomware as a 'false flag,' researchers say — Scworld · May 7, 2026
  • Iranian state — Csoonline · May 6, 2026
  • Iranian cyber espionage disguised as a Chaos Ransomware attack — Securityaffairs.Co · May 6, 2026
  • MuddyWater hackers use Chaos ransomware as a decoy in attacks — Bleepingcomputer · May 6, 2026
  • MuddyWater hackers use Chaos ransomware as a decoy in attacks — Bleepingcomputer · May 6, 2026
  • Iran — Infosecurity-Magazine · May 6, 2026

CVSS v3.1 Breakdown