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General

  • Target

    2024-02-18_c459941e11a6989a9199924c6f3deedb_virlock

  • Size

    177KB

  • Sample

    240218-n2w51shf4w

  • MD5

    c459941e11a6989a9199924c6f3deedb

  • SHA1

    0d64d28945fe317fcf29ca22ac12a89933b8aab5

  • SHA256

    363b9e26b32c5afc17f55a588d207ef5960b99cd608d08fdf9f834505a3b941f

  • SHA512

    894d9a87d6637c6156b74fd513ba8cc77c9fba5f5aebd463da94be9550c83312c33da6b5414a72a853ac75666e7932dff14e485071087b4b842bbf997a2932e1

  • SSDEEP

    3072:EzblT5XcXRWouUbzGyzTMvMKVZv7xdx1vclKklHvwBbL0jXFHV/UU/p0YrKt122V:WlT5XeR7mu+v7xdx1vc4kHvwBbL0jXBs

Malware Config

Targets

    • Target

      2024-02-18_c459941e11a6989a9199924c6f3deedb_virlock

    • Size

      177KB

    • MD5

      c459941e11a6989a9199924c6f3deedb

    • SHA1

      0d64d28945fe317fcf29ca22ac12a89933b8aab5

    • SHA256

      363b9e26b32c5afc17f55a588d207ef5960b99cd608d08fdf9f834505a3b941f

    • SHA512

      894d9a87d6637c6156b74fd513ba8cc77c9fba5f5aebd463da94be9550c83312c33da6b5414a72a853ac75666e7932dff14e485071087b4b842bbf997a2932e1

    • SSDEEP

      3072:EzblT5XcXRWouUbzGyzTMvMKVZv7xdx1vclKklHvwBbL0jXFHV/UU/p0YrKt122V:WlT5XeR7mu+v7xdx1vc4kHvwBbL0jXBs

    • Modifies visibility of file extensions in Explorer

    • UAC bypass

    • Renames multiple (79) 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