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General

  • Target

    2024-08-05_270ed136d56c54fbfb1966632b078e73_virlock

  • Size

    191KB

  • Sample

    240805-mgn38stckq

  • MD5

    270ed136d56c54fbfb1966632b078e73

  • SHA1

    ac3844f6244e9526d4ac5767eafdc8164148df14

  • SHA256

    8eb1341e2664ecc472650204fdcb53f928340d4c668715c7950871aecd109dca

  • SHA512

    32d9740d6f8affe38af5db877a8005d3c380df36a23e38b6e131c37d533a1f84e12dc658ac23f72ef6bf8c970bfa2d070f70f98b8702567cf46fe5f213dde69a

  • SSDEEP

    3072:RE9pPhTb7j4r4pQJUNpRXxBd6SsJ8TSZarF7bphNXB0d/bwx5RssBdxVqonXHxXT:RE9pP97j4r4cUNpRXxBd6SsJ8TSZaZ73

Malware Config

Targets

    • Target

      2024-08-05_270ed136d56c54fbfb1966632b078e73_virlock

    • Size

      191KB

    • MD5

      270ed136d56c54fbfb1966632b078e73

    • SHA1

      ac3844f6244e9526d4ac5767eafdc8164148df14

    • SHA256

      8eb1341e2664ecc472650204fdcb53f928340d4c668715c7950871aecd109dca

    • SHA512

      32d9740d6f8affe38af5db877a8005d3c380df36a23e38b6e131c37d533a1f84e12dc658ac23f72ef6bf8c970bfa2d070f70f98b8702567cf46fe5f213dde69a

    • SSDEEP

      3072:RE9pPhTb7j4r4pQJUNpRXxBd6SsJ8TSZarF7bphNXB0d/bwx5RssBdxVqonXHxXT:RE9pP97j4r4cUNpRXxBd6SsJ8TSZaZ73

    • 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.

    • Blocklisted process makes network request

    • 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