General

  • Target

    2024-06-08_75e5502bb97f5df9fca40e5eefe23095_virlock

  • Size

    134KB

  • Sample

    240608-nk2deaca95

  • MD5

    75e5502bb97f5df9fca40e5eefe23095

  • SHA1

    03190642d639255bb5a033f16fcd62205de29011

  • SHA256

    41ed7a415ca3c3bbc622bdf19ddc2b58582ca7a827492ed38bc4b8c49e70d8b1

  • SHA512

    071a2eb97038e19d36712058d993e14ff11fbacdce2efe81435057a606b3d16dad4685d52fa4d89dab57839ed0e2c1429136c681d1746592fed7433d8e51de79

  • SSDEEP

    3072:sgbLpEg0Va4UZUSwJHNlkOsqWGP9xtKVA8P9Hdkq0c0LRudpSuTaqQf5GVd:BDx2upBM5GVd

Malware Config

Targets

    • Target

      2024-06-08_75e5502bb97f5df9fca40e5eefe23095_virlock

    • Size

      134KB

    • MD5

      75e5502bb97f5df9fca40e5eefe23095

    • SHA1

      03190642d639255bb5a033f16fcd62205de29011

    • SHA256

      41ed7a415ca3c3bbc622bdf19ddc2b58582ca7a827492ed38bc4b8c49e70d8b1

    • SHA512

      071a2eb97038e19d36712058d993e14ff11fbacdce2efe81435057a606b3d16dad4685d52fa4d89dab57839ed0e2c1429136c681d1746592fed7433d8e51de79

    • SSDEEP

      3072:sgbLpEg0Va4UZUSwJHNlkOsqWGP9xtKVA8P9Hdkq0c0LRudpSuTaqQf5GVd:BDx2upBM5GVd

    • Modifies visibility of file extensions in Explorer

    • UAC bypass

    • Renames multiple (63) 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