General

  • Target

    2024-04-07_e12a4ec4d52a4ebfd5d775711d311642_virlock

  • Size

    120KB

  • Sample

    240407-tc9mpsgd33

  • MD5

    e12a4ec4d52a4ebfd5d775711d311642

  • SHA1

    8d13a33bf1647f5724e50d50e3d033d1c8cc011c

  • SHA256

    59aba9ca0ae7e7bfdefb3bb520fd92c85ccb4c6e60fe9b91539fcfd0873d61ad

  • SHA512

    607f3b7cd3bf4fb413824e06f2954caba21f17719fb7c2097de2e767bc16494ce73ef692a144981c6911ad8b663f791a715fcb867553c42f0fb26f7affef79b2

  • SSDEEP

    3072:a8l9OrQdBr+6K69O/Ry4zPYPFUls0XFI5lb:53dBrFBYy4WFUlsYk

Malware Config

Targets

    • Target

      2024-04-07_e12a4ec4d52a4ebfd5d775711d311642_virlock

    • Size

      120KB

    • MD5

      e12a4ec4d52a4ebfd5d775711d311642

    • SHA1

      8d13a33bf1647f5724e50d50e3d033d1c8cc011c

    • SHA256

      59aba9ca0ae7e7bfdefb3bb520fd92c85ccb4c6e60fe9b91539fcfd0873d61ad

    • SHA512

      607f3b7cd3bf4fb413824e06f2954caba21f17719fb7c2097de2e767bc16494ce73ef692a144981c6911ad8b663f791a715fcb867553c42f0fb26f7affef79b2

    • SSDEEP

      3072:a8l9OrQdBr+6K69O/Ry4zPYPFUls0XFI5lb:53dBrFBYy4WFUlsYk

    • Modifies visibility of file extensions in Explorer

    • UAC bypass

    • Renames multiple (84) 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.

    • 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