General

  • Target

    2024-10-06_767cf6805acfe047531937c68af34853_virlock

  • Size

    124KB

  • Sample

    241006-ka1gkswdkn

  • MD5

    767cf6805acfe047531937c68af34853

  • SHA1

    5e3c7571b7dd6b5f6a50ebd54bdab34e42c01f71

  • SHA256

    e04782189cea5030408039c0375ebc5d56408594b61e18f5d8c1f27cefe15d68

  • SHA512

    1a5dbb9694e871184b88cd04fe77a9b97da54a1349c8a3624b57deca91eec21415b4b9a8b24d4202b020285e835ed01d4781a2e4112bf3dab971293cf328c0a6

  • SSDEEP

    1536:pfnira3hajIwhpyLqn38KjTiCNyx4JjyAgpWVTZClziD/EEB5dSj5/tV/7:pga34jIJm3T6CNJZVWziISEj5/tVz

Malware Config

Targets

    • Target

      2024-10-06_767cf6805acfe047531937c68af34853_virlock

    • Size

      124KB

    • MD5

      767cf6805acfe047531937c68af34853

    • SHA1

      5e3c7571b7dd6b5f6a50ebd54bdab34e42c01f71

    • SHA256

      e04782189cea5030408039c0375ebc5d56408594b61e18f5d8c1f27cefe15d68

    • SHA512

      1a5dbb9694e871184b88cd04fe77a9b97da54a1349c8a3624b57deca91eec21415b4b9a8b24d4202b020285e835ed01d4781a2e4112bf3dab971293cf328c0a6

    • SSDEEP

      1536:pfnira3hajIwhpyLqn38KjTiCNyx4JjyAgpWVTZClziD/EEB5dSj5/tV/7:pga34jIJm3T6CNJZVWziISEj5/tVz

    • Modifies visibility of file extensions in Explorer

    • UAC bypass

    • Renames multiple (76) 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.

    • Deletes itself

    • 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.

    • Adds Run key to start application

    • Drops file in System32 directory

MITRE ATT&CK Enterprise v15

Tasks