General

  • Target

    LB3.exe

  • Size

    145KB

  • Sample

    230317-vm3gtahc28

  • MD5

    3b56fee645b36a022471189294485517

  • SHA1

    90138e3902b096a89b03271ea664ccc6193b766c

  • SHA256

    e6944c6c141447c0d832784928f63c24d79b0a0e6fce3f3c7e3b836c1dc7150c

  • SHA512

    de721b59586d28b261bcbf74acef98d5f1875e0fc7c43348eb4cb5d78558e34350c3bb285b8f8da1fad3fee0943ac0c4be51522a6e03eaefffeaf4039d6796a5

  • SSDEEP

    3072:R6glyuxE4GsUPnliByocWepLWlSR/eGrz:R6gDBGpvEByocWe9WeGW

Malware Config

Targets

    • Target

      LB3.exe

    • Size

      145KB

    • MD5

      3b56fee645b36a022471189294485517

    • SHA1

      90138e3902b096a89b03271ea664ccc6193b766c

    • SHA256

      e6944c6c141447c0d832784928f63c24d79b0a0e6fce3f3c7e3b836c1dc7150c

    • SHA512

      de721b59586d28b261bcbf74acef98d5f1875e0fc7c43348eb4cb5d78558e34350c3bb285b8f8da1fad3fee0943ac0c4be51522a6e03eaefffeaf4039d6796a5

    • SSDEEP

      3072:R6glyuxE4GsUPnliByocWepLWlSR/eGrz:R6gDBGpvEByocWe9WeGW

    • Modifies extensions of user files

      Ransomware generally changes the extension on encrypted files.

    • 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.

    • Drops desktop.ini file(s)

    • Drops file in System32 directory

    • Sets desktop wallpaper using registry

    • Suspicious use of NtSetInformationThreadHideFromDebugger

MITRE ATT&CK Enterprise v6

Tasks