Resubmissions

19-11-2023 18:53

231119-xj5h4sca3v 10

08-10-2023 17:05

231008-vl1a3aee91 10

General

  • Target

    NEAS.tmp_JC.exe

  • Size

    5.3MB

  • Sample

    231008-vl1a3aee91

  • MD5

    79b6d4f066d1875b18de19ad54177fa7

  • SHA1

    d99188afd625268875b1050bd561a72c51d51d38

  • SHA256

    95b7cfcdbe25fce19e887510d5da55ffdff66b3ef6db7400977f9bb94f9fec2c

  • SHA512

    365ac763dfd0986ad06acfc6b5d6a1c124ec8816d5a5ddc05f4145a91bb6fd50b7e97b4fa3d309adfe4995f57375583c619d919ecdcc1b3c792cdef9e6414cd6

  • SSDEEP

    49152:CGUKMViI+OozP3w5C49ckglrOugdutUeUCyLQrO/LH:IK0iI+HPA

Malware Config

Targets

    • Target

      NEAS.tmp_JC.exe

    • Size

      5.3MB

    • MD5

      79b6d4f066d1875b18de19ad54177fa7

    • SHA1

      d99188afd625268875b1050bd561a72c51d51d38

    • SHA256

      95b7cfcdbe25fce19e887510d5da55ffdff66b3ef6db7400977f9bb94f9fec2c

    • SHA512

      365ac763dfd0986ad06acfc6b5d6a1c124ec8816d5a5ddc05f4145a91bb6fd50b7e97b4fa3d309adfe4995f57375583c619d919ecdcc1b3c792cdef9e6414cd6

    • SSDEEP

      49152:CGUKMViI+OozP3w5C49ckglrOugdutUeUCyLQrO/LH:IK0iI+HPA

    • Jigsaw Ransomware

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

    • Checks computer location settings

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

    • Executes dropped EXE

    • Loads dropped DLL

    • Reads user/profile data of web browsers

      Infostealers often target stored browser data, which can include saved credentials etc.

    • UPX packed file

      Detects executables packed with UPX/modified UPX open source packer.

    • Adds Run key to start application

    • Drops desktop.ini file(s)

MITRE ATT&CK Enterprise v15

Tasks