General

  • Target

    03061448_3

  • Size

    23.5MB

  • Sample

    220805-btkqssdda4

  • MD5

    2fa17055cbe751f03a57d8b8ec3c6cd4

  • SHA1

    725ec6bad168609b433df4c60e2f754fb764eaaa

  • SHA256

    a6c9370b43fdff11eae35f61bc7d8f89ab817685a6157359eaf52496fcc949a2

  • SHA512

    534ff7e3ed7c9899720632432a850ab441d6e7cf1f14e9cf36d884e9f8cd13c5d95a44a9d72b9daf291d5aeb824d06e0b9d21fad772c9998a30016143f925c3c

Malware Config

Targets

    • Target

      03061448_3

    • Size

      23.5MB

    • MD5

      2fa17055cbe751f03a57d8b8ec3c6cd4

    • SHA1

      725ec6bad168609b433df4c60e2f754fb764eaaa

    • SHA256

      a6c9370b43fdff11eae35f61bc7d8f89ab817685a6157359eaf52496fcc949a2

    • SHA512

      534ff7e3ed7c9899720632432a850ab441d6e7cf1f14e9cf36d884e9f8cd13c5d95a44a9d72b9daf291d5aeb824d06e0b9d21fad772c9998a30016143f925c3c

    • Executes dropped EXE

    • VMProtect packed file

      Detects executables packed with VMProtect commercial packer.

    • Checks computer location settings

      Looks up country code configured in the registry, likely geofence.

    • Loads dropped DLL

    • Checks installed software on the system

      Looks up Uninstall key entries in the registry to enumerate software on the system.

    • Enumerates connected drives

      Attempts to read the root path of hard drives other than the default C: drive.

    • Modifies boot configuration data using bcdedit

    • Writes to the Master Boot Record (MBR)

      Bootkits write to the MBR to gain persistence at a level below the operating system.

MITRE ATT&CK Matrix ATT&CK v6

Persistence

Bootkit

1
T1067

Discovery

Query Registry

4
T1012

System Information Discovery

4
T1082

Peripheral Device Discovery

2
T1120

Tasks