jigsaw | hxxps://github[.]com/kh4sh3i/Ransomware-Samples

- Target
  https://github.com/kh4sh3i/Ransomware-Samples
Score

10^/10

defense_evasion discovery jigsaw persistence privilege_escalation ransomware
- Family: Jigsaw Ransomware
  Ransomware family first created in 2016. Named based on wallpaper set after infection in the early versions.
  ransomware jigsaw
- Renames multiple (1001) files with added filename extension
  This suggests ransomware activity of encrypting all the files on the system.
  ransomware
- Downloads MZ/PE file
- Event Triggered Execution: Component Object Model Hijacking
  Adversaries may establish persistence by executing malicious content triggered by hijacked references to Component Object Model (COM) objects.
  persistence privilege_escalation
- Executes dropped EXE
- Loads dropped DLL
- Adds Run key to start application
  persistence
- Checks installed software on the system
  Looks up Uninstall key entries in the registry to enumerate software on the system.
  discovery
- Contacts third-party web service commonly abused for C2
  Legitimate web (hosting) services can be abused by malware authors to host malware or C2s.
- ConfuserEx .NET packer
  Detects ConfuserEx .NET packer.
behavioral1