General

  • Target
    BB465menu.bat
  • Size 2.1MB
  • Sample261103-bej6qagw7m
  • SHA256 ccf3b6c2b9e9fa9759c27bab084bf4386484f07a88c72ec0fec6155d44fe4d34
  • MD5 SHA1 SHA512 SSDEEP TLSH

Malware Config

Extracted

Family
  • neptunerat

C2
  • m7mnga-38338.portmap.host:38338

Attributes
  • filename

    USB.exe

  • group

    MasonGroup

  • key

    jBIlhtK8SaqT4ZFV

  • rat_name

    MasonRAT

Targets

    • Target
      BB465menu.bat
    • Size 2.1MB
    • SHA256 ccf3b6c2b9e9fa9759c27bab084bf4386484f07a88c72ec0fec6155d44fe4d34
    • 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#.

    • Badlisted process makes network request

      Network request originating from process or tool commonly abused by malware.

    • Command and Scripting Interpreter: PowerShell

      Run Powershell to modify Windows Defender settings to add exclusions for file extensions, paths, and processes.

    • 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