Resubmissions

30/08/2024, 14:26

240830-rr253ayfjc10

30/08/2024, 09:28

240830-lfmncaxamh10

General

  • Target
    2024-08-30_81605de48f66887272b879486dfc07a8_destroyer_wannacry
  • Size 68KB
  • Sample240830-lfmncaxamh
  • SHA256 fa0a4f9d71cde33626ac77ca1d5f5ff98af968446787dbe097cc36ea6f5ae87a
  • MD5 SHA1 SHA512 SSDEEP

Malware Config

Targets

    • Target
      2024-08-30_81605de48f66887272b879486dfc07a8_destroyer_wannacry
    • Size 68KB
    • SHA256 fa0a4f9d71cde33626ac77ca1d5f5ff98af968446787dbe097cc36ea6f5ae87a
    • MD5 SHA1 SHA512 SSDEEP
    • 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.

    • Checks computer location settings

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

    • Drops startup file

    • Executes dropped EXE

    • 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 v15

Tasks