Resubmissions

11/11/2022, 23:03

221111-216jyscc6610

11/11/2022, 22:52

221111-2ttltacc2210

General

  • Target
    MRH.exe
  • Size 1.9MB
  • Sample221111-216jyscc66
  • SHA256 e9c817d02acaf2fbb59a0a44be05dbb284ee622f50b2e2a598daac8bfb564672
  • MD5 SHA1 SHA512 SSDEEP

Malware Config

Extracted

Family
  • arrowrat

Botnet
  • Client

C2
  • 213.239.219.58:1337

Mutex
  • nPxRArUjc

Targets

    • Target
      MRH.exe
    • Size 1.9MB
    • SHA256 e9c817d02acaf2fbb59a0a44be05dbb284ee622f50b2e2a598daac8bfb564672
    • MD5 SHA1 SHA512 SSDEEP
    • ArrowRat

      Remote access tool with various capabilities first seen in late 2021.

    • Executes dropped EXE

    • Modifies Installed Components in the registry

    • Checks computer location settings

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

    • Deletes itself

    • Loads dropped DLL

    • Enumerates connected drives

      Attempts to read the root path of hard drives other than the default C: drive.

    • Suspicious use of SetThreadContext

MITRE ATT&CK Enterprise v6

Tasks