General

  • Target

    setupov16.exe

  • Size

    271.7MB

  • Sample

    230219-am1yrsea58

  • MD5

    afc107122f9018050f0a1201e6d096a2

  • SHA1

    97a56e7492d86791e8d880fb3c530f0812c04244

  • SHA256

    3cc08755e17790f6152c50cf98ae474e49011e2407fd3f327ac3919d1b503f14

  • SHA512

    417cc8614bd4f4d9d450d6a497b0e69cb98b21c3b4a95bb46b8fa08983be6842c9ac1c7af48b23734d42fc5cdaa21c4e0fe335dcb5918b7905ebe51eae8f6f4f

  • SSDEEP

    96:LmJQaxddLegL2RZBz+4O0OFKqWZkr8lGDwaYz2N924vBM4zNt:LmJJdLD2TNp3q1YQDDYzi9faa

Malware Config

Extracted

Family

purecrypter

C2

http://comicmaster.org.uk/img/css/design/fabric/bo/Kvxut.dat

Targets

    • Target

      setupov16.exe

    • Size

      271.7MB

    • MD5

      afc107122f9018050f0a1201e6d096a2

    • SHA1

      97a56e7492d86791e8d880fb3c530f0812c04244

    • SHA256

      3cc08755e17790f6152c50cf98ae474e49011e2407fd3f327ac3919d1b503f14

    • SHA512

      417cc8614bd4f4d9d450d6a497b0e69cb98b21c3b4a95bb46b8fa08983be6842c9ac1c7af48b23734d42fc5cdaa21c4e0fe335dcb5918b7905ebe51eae8f6f4f

    • SSDEEP

      96:LmJQaxddLegL2RZBz+4O0OFKqWZkr8lGDwaYz2N924vBM4zNt:LmJJdLD2TNp3q1YQDDYzi9faa

    • PureCrypter

      PureCrypter is a .NET malware loader first seen in early 2021.

    • Downloads MZ/PE file

    • Checks computer location settings

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

    • Executes dropped EXE

    • Loads dropped DLL

    • Reads user/profile data of web browsers

      Infostealers often target stored browser data, which can include saved credentials etc.

    • Accesses cryptocurrency files/wallets, possible credential harvesting

    • Adds Run key to start application

    • Checks installed software on the system

      Looks up Uninstall key entries in the registry to enumerate software on the system.

    • Suspicious use of SetThreadContext

MITRE ATT&CK Enterprise v6

Tasks