Fox Kitten

Overview

Fox Kitten is threat actor with a suspected nexus to the Iranian government that has been active since at least 2017 against entities in the Middle East, North Africa, Europe, Australia, and North America. Fox Kitten has targeted multiple industrial verticals including oil and gas, technology, government, defense, healthcare, manufacturing, and engineering.

Naming & attribution

Fox Kitten is tracked under 6 names across the industry. It uses 41 documented ATT&CK techniques — more than 76% of the 174 groups tracked here. Activity attributed since at least 2017.

Distinctive techniques

Techniques this group uses that are rare across the other 173 tracked groups — these carry more signal than the near-universal ones.

• T1213.005 Messaging Applications — used by 3 of 174 groups

Closest groups by technique overlap

Computed from shared ATT&CK techniques. Overlap is not attribution — distinct actors converge on the same tradecraft — but a high share is a useful pivot.

• APT39 Iran — 21 shared techniques (29% overlap)
• FIN13 — 21 shared techniques (29% overlap)
• menuPass China — 19 shared techniques (28% overlap)
• Chimera China — 20 shared techniques (25% overlap)
• FIN6 — 16 shared techniques (25% overlap)
• APT41 China — 24 shared techniques (24% overlap)

Capabilities

• Exploitation of public-facing / client applications — ATT&CK T1190
• Custom malware/implant development — ATT&CK: 3 attributed custom malware families

TTPs — 41 techniques across 11 tactics

Tools & malware (5)

China Chopper · Pay2Key · ngrok · PsExec · SystemBC

Reporting (3)

• How Microsoft names threat actors — Microsoft
• Pay2Key Ransomware – A New Campaign by Fox Kitten — ClearSky
• Iran-Based Threat Actor Exploits VPN Vulnerabilities — CISA