General

  • Target

    fdf5c750970f62c54c40df974fc775c873c8916097db05f2f3d11012c87cd107

  • Size

    2.6MB

  • Sample

    220306-f67tbaaag6

  • MD5

    99f0feb589d41c1465846e380d5cdc7d

  • SHA1

    bae92119e9d856e735ed605d2db42680c2dabfc7

  • SHA256

    fdf5c750970f62c54c40df974fc775c873c8916097db05f2f3d11012c87cd107

  • SHA512

    d8a35f82f4e9d506db76da2ae6ce64b5cc19e28bf74353a07c750ce07547d43ac626d186f5a2f5572ac71d86f2d37868f5837f4b369b8c514c7497b771d8cfef

Malware Config

Extracted

Language
ps1
Deobfuscated
URLs
ps1.dropper

http://myexternalip.com/raw

Targets

    • Target

      fdf5c750970f62c54c40df974fc775c873c8916097db05f2f3d11012c87cd107

    • Size

      2.6MB

    • MD5

      99f0feb589d41c1465846e380d5cdc7d

    • SHA1

      bae92119e9d856e735ed605d2db42680c2dabfc7

    • SHA256

      fdf5c750970f62c54c40df974fc775c873c8916097db05f2f3d11012c87cd107

    • SHA512

      d8a35f82f4e9d506db76da2ae6ce64b5cc19e28bf74353a07c750ce07547d43ac626d186f5a2f5572ac71d86f2d37868f5837f4b369b8c514c7497b771d8cfef

    • Matrix Ransomware

      Targeted ransomware with information collection and encryption functionality.

    • Deletes shadow copies

      Ransomware often targets backup files to inhibit system recovery.

    • Modifies boot configuration data using bcdedit

    • Blocklisted process makes network request

    • Drops file in Drivers directory

    • Executes dropped EXE

    • Modifies extensions of user files

      Ransomware generally changes the extension on encrypted files.

    • Sets service image path in registry

    • UPX packed file

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

    • Checks computer location settings

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

    • Loads dropped DLL

    • Modifies file permissions

    • 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.

    • Drops file in System32 directory

    • Sets desktop wallpaper using registry

MITRE ATT&CK Enterprise v6

Tasks