General

  • Target

    NWfvpVzj.exe

  • Size

    1.2MB

  • Sample

    201109-fv9mlxnap6

  • MD5

    44efccc6dc37d85446f50934c8f83f04

  • SHA1

    afb5c1739ae1fc2227164fa54a984de45adb4c87

  • SHA256

    57558bdab2008feb661e223e24dd1e437556bcab3c5f5a50cb5f0a640050ae0e

  • SHA512

    def1d31c0e7b8e98e117e7fca257a00624c567632dafd1c6677f53c60ff3596831c53c79d9b8e536d4da2d3a796b37ed8498caa3eb63f0292ce4c69e5e267b79

Malware Config

Targets

    • Target

      NWfvpVzj.exe

    • Size

      1.2MB

    • MD5

      44efccc6dc37d85446f50934c8f83f04

    • SHA1

      afb5c1739ae1fc2227164fa54a984de45adb4c87

    • SHA256

      57558bdab2008feb661e223e24dd1e437556bcab3c5f5a50cb5f0a640050ae0e

    • SHA512

      def1d31c0e7b8e98e117e7fca257a00624c567632dafd1c6677f53c60ff3596831c53c79d9b8e536d4da2d3a796b37ed8498caa3eb63f0292ce4c69e5e267b79

    • 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

    • 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.

    • 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.

    • Modifies service

    • Sets desktop wallpaper using registry

MITRE ATT&CK Enterprise v6

Tasks