General

  • Target

    2025-05-15_b05225c514e5d0e266d4542e51ab184f_elex_virlock

  • Size

    569KB

  • Sample

    250516-ave19sszgx

  • MD5

    b05225c514e5d0e266d4542e51ab184f

  • SHA1

    41527b258f9611adfe76900f62c097c7aea10266

  • SHA256

    82f6c7af81aac4bd5bae554e97e212c4e6cbe2ee67894d292a3710472b43b466

  • SHA512

    cf9ad63332a03f5236758604268c7b41253fc12a2907378cf3598f7f4bf69930ef202c40b4aebbd6ada6394387e93216927074900be924e002c2106efacddf51

  • SSDEEP

    12288:NnBliQMXR7KlrjkvCKRGY8wozZ9mNX/uedD2HkGIlAdoTkynhc/C8xJcGMg58z:nlip8wiZANXmeojOAWTkY8xJcxz

Malware Config

Targets

    • Target

      2025-05-15_b05225c514e5d0e266d4542e51ab184f_elex_virlock

    • Size

      569KB

    • MD5

      b05225c514e5d0e266d4542e51ab184f

    • SHA1

      41527b258f9611adfe76900f62c097c7aea10266

    • SHA256

      82f6c7af81aac4bd5bae554e97e212c4e6cbe2ee67894d292a3710472b43b466

    • SHA512

      cf9ad63332a03f5236758604268c7b41253fc12a2907378cf3598f7f4bf69930ef202c40b4aebbd6ada6394387e93216927074900be924e002c2106efacddf51

    • SSDEEP

      12288:NnBliQMXR7KlrjkvCKRGY8wozZ9mNX/uedD2HkGIlAdoTkynhc/C8xJcGMg58z:nlip8wiZANXmeojOAWTkY8xJcxz

    • Modifies visibility of file extensions in Explorer

    • Renames multiple (100) 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

    • 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

    • Checks installed software on the system

      Looks up Uninstall key entries in the registry to enumerate software on the system.

    • Drops file in System32 directory

MITRE ATT&CK Enterprise v16

Tasks