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General

  • Target

    2024-03-09_5d0bbf024cd5fb1645155c9ab2e096f1_virlock

  • Size

    254KB

  • Sample

    240309-a3rd9sbe9z

  • MD5

    5d0bbf024cd5fb1645155c9ab2e096f1

  • SHA1

    f1e19b834924e6b8b39683d2680b1ce3c53c7804

  • SHA256

    f8dabbf3f6a99e1cc0059d7cfb901af2451c0a790839b605c595f3239b99f5d3

  • SHA512

    413beb0634d11899ea51a04b0eb97b247db0a093b8149d40c47fb313f5a8e43e9368eb844b6b69d94c57e2d76ea4aa6f6105c3fa7e88f8c1d3b7f81271b71c2f

  • SSDEEP

    3072:N8GGQWTqVN14g7X3DpwhSimjx7qImuxogPfqTXXBpG4EiCV9oZyoukj0qhA:nGFq/14G3DehSi4XuXX/fEieoZjjLhA

Malware Config

Targets

    • Target

      2024-03-09_5d0bbf024cd5fb1645155c9ab2e096f1_virlock

    • Size

      254KB

    • MD5

      5d0bbf024cd5fb1645155c9ab2e096f1

    • SHA1

      f1e19b834924e6b8b39683d2680b1ce3c53c7804

    • SHA256

      f8dabbf3f6a99e1cc0059d7cfb901af2451c0a790839b605c595f3239b99f5d3

    • SHA512

      413beb0634d11899ea51a04b0eb97b247db0a093b8149d40c47fb313f5a8e43e9368eb844b6b69d94c57e2d76ea4aa6f6105c3fa7e88f8c1d3b7f81271b71c2f

    • SSDEEP

      3072:N8GGQWTqVN14g7X3DpwhSimjx7qImuxogPfqTXXBpG4EiCV9oZyoukj0qhA:nGFq/14G3DehSi4XuXX/fEieoZjjLhA

    • Modifies visibility of file extensions in Explorer

    • UAC bypass

    • Renames multiple (83) 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

    • Drops file in System32 directory

MITRE ATT&CK Enterprise v15

Tasks