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General

  • Target

    2024-03-04_1829d22ad61c16bba6dbd6e1232174f0_virlock

  • Size

    227KB

  • Sample

    240304-rrpvqscd3t

  • MD5

    1829d22ad61c16bba6dbd6e1232174f0

  • SHA1

    d2ecbd93ed497f4eb86d9e4e046225f9a004469a

  • SHA256

    dd3ade5a78d4bfa23968f3f3138acb95a46d840a86edaeba911793758da4e264

  • SHA512

    58fe3502d91785a252f851fc79b1132fea710a1d860995fdc63e9a9e115fbd25ed2f7ea38a9a8af903a6c02fd7f0ad91f3e44431ca99ccce49f8d5a742a1c38a

  • SSDEEP

    3072:4wTJxhTcnbnjTegjp2sY4s8bkgBpJV8b8738NOxFX6FNFFZNtL6:TxQTegN2sGCk07VDoO705L

Malware Config

Targets

    • Target

      2024-03-04_1829d22ad61c16bba6dbd6e1232174f0_virlock

    • Size

      227KB

    • MD5

      1829d22ad61c16bba6dbd6e1232174f0

    • SHA1

      d2ecbd93ed497f4eb86d9e4e046225f9a004469a

    • SHA256

      dd3ade5a78d4bfa23968f3f3138acb95a46d840a86edaeba911793758da4e264

    • SHA512

      58fe3502d91785a252f851fc79b1132fea710a1d860995fdc63e9a9e115fbd25ed2f7ea38a9a8af903a6c02fd7f0ad91f3e44431ca99ccce49f8d5a742a1c38a

    • SSDEEP

      3072:4wTJxhTcnbnjTegjp2sY4s8bkgBpJV8b8738NOxFX6FNFFZNtL6:TxQTegN2sGCk07VDoO705L

    • Modifies visibility of file extensions in Explorer

    • UAC bypass

    • Renames multiple (86) 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

MITRE ATT&CK Enterprise v15

Tasks