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General

  • Target

    Chrome32.exe

  • Size

    126KB

  • Sample

    250320-21xbaatp17

  • MD5

    e0d108435c58dc9403588e4dcab68275

  • SHA1

    7a7331423938020550ff3decd2e8b50b3ee5c87a

  • SHA256

    61cd0131cb4bf090c5ee7761566f6f7a778e78b37d220f0506f98632a2663ee8

  • SHA512

    2a5648ced91b75d928b4d71a8580c5bee75a5f27623f8c5071cd23b8cd85eaa8129ddb0aaf0a1fcca05fb1b7868a0fcd9306e9ddf2d3eaaf605c41cc7fde4a9e

  • SSDEEP

    3072:7+gYdgLNp0jPilel4+800N1lknzRxqmhda40U6hrnzRxqmhda40U6hK:6gvunnhdaLlrnnhdaLl

Malware Config

Targets

    • Target

      Chrome32.exe

    • Size

      126KB

    • MD5

      e0d108435c58dc9403588e4dcab68275

    • SHA1

      7a7331423938020550ff3decd2e8b50b3ee5c87a

    • SHA256

      61cd0131cb4bf090c5ee7761566f6f7a778e78b37d220f0506f98632a2663ee8

    • SHA512

      2a5648ced91b75d928b4d71a8580c5bee75a5f27623f8c5071cd23b8cd85eaa8129ddb0aaf0a1fcca05fb1b7868a0fcd9306e9ddf2d3eaaf605c41cc7fde4a9e

    • SSDEEP

      3072:7+gYdgLNp0jPilel4+800N1lknzRxqmhda40U6hrnzRxqmhda40U6hK:6gvunnhdaLlrnnhdaLl

    • Jigsaw Ransomware

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

    • Jigsaw family

    • Renames multiple (238) files with added filename extension

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

    • Checks computer location settings

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

    • Executes dropped EXE

    • Adds Run key to start application

MITRE ATT&CK Enterprise v15

Tasks