General

  • Target
    0d683d2e4fa69e5a5780ffcec285131df7d3467d0f5483ad7d1e918160817886
  • Size 2.2MB
  • Sample210921-kd7p3aghc3
  • SHA256 0d683d2e4fa69e5a5780ffcec285131df7d3467d0f5483ad7d1e918160817886
  • MD5 SHA1 SHA512

Malware Config

Targets

    • Target
      0d683d2e4fa69e5a5780ffcec285131df7d3467d0f5483ad7d1e918160817886
    • Size 2.2MB
    • SHA256 0d683d2e4fa69e5a5780ffcec285131df7d3467d0f5483ad7d1e918160817886
    • MD5 SHA1 SHA512
    • Chaos

      Ransomware family first seen in June 2021.

    • Chaos Ransomware

    • Deletes shadow copies

      Ransomware often targets backup files to inhibit system recovery.

    • Modifies boot configuration data using bcdedit

    • Deletes backup catalog

      Uses wbadmin.exe to inhibit system recovery.

    • Executes dropped EXE

    • Modifies extensions of user files

      Ransomware generally changes the extension on encrypted files.

    • Drops startup file

    • Reads user/profile data of web browsers

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

    • Drops desktop.ini file(s)

    • Sets desktop wallpaper using registry

MITRE ATT&CK Enterprise v6

Tasks