General

  • Target
    ll.exe
  • Size 49KB
  • Sample261102-rw7lcafd52
  • SHA256 679eb536ebb1f9c449027f19aa5a442f4ef6e94bce1f3a94c6c73e45b7ee2e46
  • MD5 SHA1 SHA512 SSDEEP TLSH

Malware Config

Extracted

Family
  • neptunerat

C2
  • vpn823034274.softether.net:38977

Attributes
  • filename

    USB.exe

  • group

    MasonGroup

  • key

    tUt1uszof1kvDZxj

  • rat_name

    MasonRAT

Targets

    • Target
      ll.exe
    • Size 49KB
    • SHA256 679eb536ebb1f9c449027f19aa5a442f4ef6e94bce1f3a94c6c73e45b7ee2e46
    • MD5 SHA1 SHA512 SSDEEP TLSH
    • Detects NeptuneRAT stealer

    • Family: NeptuneRAT, MasonRAT

      NeptuneRAT aka MasonRAT is a trojan written in C#.

    • Checks computer location settings

      Looks up country code configured in the registry, likely geofence.

    • Executes dropped EXE

    • Contacts third-party web service commonly abused for C2

      Legitimate web (hosting) services can be abused by malware authors to host malware or C2s.

MITRE ATT&CK Enterprise v16

Tasks