Resubmissions

17/12/2023, 09:25

231217-ld4tvafee810

17/12/2023, 09:25

231217-ldtc4sfee710

17/12/2023, 03:55

231217-eg3bvsdgbm10

General

  • Target
    jigsaw.exe
  • Size 283KB
  • Sample231217-ldtc4sfee7
  • SHA256 3ae96f73d805e1d3995253db4d910300d8442ea603737a1428b613061e7f61e7
  • MD5 SHA1 SHA512 SSDEEP

Malware Config

Targets

    • Target
      jigsaw.exe
    • Size 283KB
    • SHA256 3ae96f73d805e1d3995253db4d910300d8442ea603737a1428b613061e7f61e7
    • MD5 SHA1 SHA512 SSDEEP
    • Jigsaw Ransomware

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

    • Renames multiple (3755) files with added filename extension

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

    • Executes dropped EXE

    • 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

MITRE ATT&CK Enterprise v15

Tasks