General

  • Target

    91d07adbf35edb6bb96e7b210f17b9b868ed858802727d6f69c1e5a2d37a9c53

  • Size

    1.2MB

  • Sample

    220201-kjzawacbf6

  • MD5

    1fa1b6d4b3ed867c1d4baffc77417611

  • SHA1

    afb5e385f9cc8910d7a970b6c32b8d79295579da

  • SHA256

    91d07adbf35edb6bb96e7b210f17b9b868ed858802727d6f69c1e5a2d37a9c53

  • SHA512

    0600b92914a7489a6428b8e4217e5f24e1d149fc5807d86cc4de91b43be2470a1ddf77093c8732d4371a87fd163cc556e09d11a2c6655382a35a5f5741ae05a5

Malware Config

Extracted

Language
ps1
Deobfuscated
URLs
ps1.dropper

http://myexternalip.com/raw

Targets

    • Target

      91d07adbf35edb6bb96e7b210f17b9b868ed858802727d6f69c1e5a2d37a9c53

    • Size

      1.2MB

    • MD5

      1fa1b6d4b3ed867c1d4baffc77417611

    • SHA1

      afb5e385f9cc8910d7a970b6c32b8d79295579da

    • SHA256

      91d07adbf35edb6bb96e7b210f17b9b868ed858802727d6f69c1e5a2d37a9c53

    • SHA512

      0600b92914a7489a6428b8e4217e5f24e1d149fc5807d86cc4de91b43be2470a1ddf77093c8732d4371a87fd163cc556e09d11a2c6655382a35a5f5741ae05a5

    • Matrix Ransomware

      Targeted ransomware with information collection and encryption functionality.

    • Deletes shadow copies

      Ransomware often targets backup files to inhibit system recovery.

    • Blocklisted process makes network request

    • Drops file in Drivers directory

    • Executes dropped EXE

    • Sets service image path in registry

    • UPX packed file

      Detects executables packed with UPX/modified UPX open source packer.

    • Loads dropped DLL

    • Modifies file permissions

    • Reads user/profile data of web browsers

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

    • Drops desktop.ini file(s)

    • Enumerates connected drives

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

    • Looks up external IP address via web service

      Uses a legitimate IP lookup service to find the infected system's external IP.

    • Sets desktop wallpaper using registry

MITRE ATT&CK Enterprise v6

Tasks