General

  • Target

    https://github.com/orangegrouptech/Biohazards-from-orangegrouptech/raw/refs/heads/master/Ransomware/JigsawRansomware/JigsawRansomware.exe

  • Sample

    241228-bcf2aasqfx

Malware Config

Targets

    • Target

      https://github.com/orangegrouptech/Biohazards-from-orangegrouptech/raw/refs/heads/master/Ransomware/JigsawRansomware/JigsawRansomware.exe

    • Jigsaw Ransomware

      Ransomware family first created in 2016. Named based on wallpaper set after infection in the early versions.

    • Jigsaw family

    • Renames multiple (805) files with added filename extension

      This suggests ransomware activity of encrypting all the files on the system.

    • Downloads MZ/PE file

    • Checks computer location settings

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

    • Executes dropped EXE

    • Adds Run key to start application

    • Legitimate hosting services abused for malware hosting/C2

MITRE ATT&CK Enterprise v15

Tasks