General

  • Target
    UWCryptor OMEGA.exe
  • Size 36.1MB
  • Sample260928-2jjnvsdf24
  • SHA256 a5bc8fd1c9ad8c5e5324662add6069296b4aadd3dd29684f80fd63694522ccf9
  • MD5 SHA1 SHA512 SSDEEP TLSH

Malware Config

Targets

    • Target
      UWCryptor OMEGA.exe
    • Size 36.1MB
    • SHA256 a5bc8fd1c9ad8c5e5324662add6069296b4aadd3dd29684f80fd63694522ccf9
    • MD5 SHA1 SHA512 SSDEEP TLSH
    • Modifies Windows Defender DisableAntiSpyware settings

    • Deletes shadow copies

      Ransomware often targets backup files to inhibit system recovery.

    • Modifies boot configuration data using bcdedit

    • Deletes System State backups

      Uses wbadmin.exe to inhibit system recovery.

    • Disables RegEdit via registry modification

    • Disables Task Manager via registry modification

    • Disables cmd.exe use via registry modification

    • Creates a file in the Startup directory

      A file was written to a Windows startup folder. Files in these directories are executed automatically when a user logs on or an application initializes.

    • Loads dropped DLL

    • Reads user/profile data of web browsers

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

    • Adds Run key to start application

    • Enumerates connected drives

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

    • Writes to the Master Boot Record (MBR)

      Bootkits write to the MBR to gain persistence at a level below the operating system.

    • Drops autorun.inf file

      Malware can abuse Windows Autorun to spread further via attached volumes.

    • Drops file in System32 directory

MITRE ATT&CK Enterprise v16

Tasks