General

  • Target
    MasonClient (2).exe
  • Size 84KB
  • Sample260730-3q4haazarf
  • SHA256 1bba070db4b884fc776ce6bc4427ee75d766aee6fe4cf90b80fe08355e701df6
  • MD5 SHA1 SHA512 SSDEEP TLSH

Malware Config

Extracted

Family
  • neptunerat

C2
  • 8.tcp.cpolar.top:1914

Attributes
  • filename

    USB.exe

  • group

    MasonGroup

  • key

    rvgZ86sRU90G2mT0

  • rat_name

    MasonRAT

Targets

    • Target
      MasonClient (2).exe
    • Size 84KB
    • SHA256 1bba070db4b884fc776ce6bc4427ee75d766aee6fe4cf90b80fe08355e701df6
    • MD5 SHA1 SHA512 SSDEEP TLSH
    • Detects DonutLoader

    • Detects NeptuneRAT stealer

    • Family: DonutLoader

      DonutLoader is a position-independent code that enables in-memory execution of VBScript, JScript, EXE, DLL files and dotNET assemblies.

    • 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

MITRE ATT&CK Enterprise v16

Tasks