InvisibleFerret
- ID
- S1245
- Type
- Malware
- Platforms
- Linux, macOS, Windows
- Source
- attack.mitre.org
- MITRE last modified
- 24 Oct 2025
InvisibleFerret is a modular python malware that is leveraged for data exfiltration and remote access capabilities.[1][2][3] InvisibleFerret consists of four modules: main, payload, browser, and AnyDesk.[1] InvisibleFerret malware has been leveraged by North Korea-affiliated threat actors identified as DeceptiveDevelopment or Contagious Interview since 2023.[4][2][3][5] InvisibleFerret has historically been introduced to the victim environment through the use of the BeaverTail malware.[6][1][2][3][5]
Techniques used (35)
- T1005 Data from Local System
- T1016 System Network Configuration Discovery
- T1027.013 Encrypted/Encoded File
- T1033 System Owner/User Discovery
- T1041 Exfiltration Over C2 Channel
- T1048.003 Exfiltration Over Unencrypted Non-C2 Protocol
- T1056 Input Capture
- T1056.001 Keylogging
- T1057 Process Discovery
- T1059.001 PowerShell
- T1059.006 Python
- T1071.001 Web Protocols
- T1074.001 Local Data Staging
- T1082 System Information Discovery
- T1083 File and Directory Discovery
- T1087.001 Local Account
- T1095 Non-Application Layer Protocol
- T1105 Ingress Tool Transfer
- T1115 Clipboard Data
- T1140 Deobfuscate/Decode Files or Information
- T1219 Remote Access Tools
- T1489 Service Stop
- T1518 Software Discovery
- T1543.001 Launch Agent
- T1547.001 Registry Run Keys / Startup Folder
- T1547.013 XDG Autostart Entries
- T1555.003 Credentials from Web Browsers
- T1555.005 Password Managers
- T1560.001 Archive via Utility
- T1564.003 Hidden Window
- T1567 Exfiltration Over Web Service
- T1571 Non-Standard Port
- T1614 System Location Discovery
- T1657 Financial Theft
- T1679 Selective Exclusion
Groups using it (1)
References
- ESET Contagious Interview BeaverTail InvisibleFerret February 2025
- Zscaler ContagiousInterview BeaverTail InvisibleFerret November 2024
- PaloAlto ContagiousInterview BeaverTail InvisibleFerret November 2023
- Recorded Future Contagious Inteview BeaverTail InvisibleFerret OtterCookie February 2025
- PaloAlto Unit42 ContagiousInterview BeaverTail InvisibileFerret October 2024
- Esentire ContagiousInterview BeaverTail InvisibleFerret November 2024
