HexEval Loader
- ID
- S1249
- Type
- Malware
- Platforms
- Linux, macOS, Windows
- Source
- attack.mitre.org
- MITRE last modified
- 24 Oct 2025
HexEval Loader is a hex-encoded loader that collects host data, decodes follow-on scripts and acts as a downloader for the BeaverTail malware. HexEval Loader was first reported in April 2025. HexEval Loader has previously been leveraged by North Korea-affiliated threat actors identified as Contagious Interview. HexEval Loader has been delivered to victims through code repository sites utilizing typosquatting naming conventions of various npm packages.[1][2][3]
Techniques used (12)
- T1016 System Network Configuration Discovery
- T1027.013 Encrypted/Encoded File
- T1033 System Owner/User Discovery
- T1036.005 Match Legitimate Resource Name or Location
- T1041 Exfiltration Over C2 Channel
- T1056.001 Keylogging
- T1059.007 JavaScript
- T1071.001 Web Protocols
- T1082 System Information Discovery
- T1105 Ingress Tool Transfer
- T1140 Deobfuscate/Decode Files or Information
- T1614 System Location Discovery