General

  • Target

    ByteBreakerBootstrapper.exe

  • Size

    10KB

  • Sample

    241121-qm4bwsxjcl

  • MD5

    42685dcac1e93766a145506117e18bdb

  • SHA1

    35268754ce19f7abeed26e159dae93e6e1f4ffaf

  • SHA256

    0dd1f6e20e065ec3c860fe9bbe6688937450c707ce7e2d2ac53558381799244b

  • SHA512

    33f42a1d09abe53c870f13336b6ce652bcd3d87614e0bc70ca109f1b6668c30766e4337a9a5e86a3dce55c904c431bafc165f5aa915daa70c98521eab3a37c3f

  • SSDEEP

    96:gNCH5JT31k12R1NIiG1Q94btQF+e9sn3Xkb21AmUVC6NW3b9Ajt86sQVeCqpE/u3:QufBE2R7WQ94JQFrqSmUI6PDsQVf7G5

Malware Config

Targets

    • Target

      ByteBreakerBootstrapper.exe

    • Size

      10KB

    • MD5

      42685dcac1e93766a145506117e18bdb

    • SHA1

      35268754ce19f7abeed26e159dae93e6e1f4ffaf

    • SHA256

      0dd1f6e20e065ec3c860fe9bbe6688937450c707ce7e2d2ac53558381799244b

    • SHA512

      33f42a1d09abe53c870f13336b6ce652bcd3d87614e0bc70ca109f1b6668c30766e4337a9a5e86a3dce55c904c431bafc165f5aa915daa70c98521eab3a37c3f

    • SSDEEP

      96:gNCH5JT31k12R1NIiG1Q94btQF+e9sn3Xkb21AmUVC6NW3b9Ajt86sQVeCqpE/u3:QufBE2R7WQ94JQFrqSmUI6PDsQVf7G5

    • Downloads MZ/PE file

    • Event Triggered Execution: Image File Execution Options Injection

    • A potential corporate email address has been identified in the URL: currency-file@1

    • Checks computer location settings

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

    • Event Triggered Execution: Component Object Model Hijacking

      Adversaries may establish persistence by executing malicious content triggered by hijacked references to Component Object Model (COM) objects.

    • Executes dropped EXE

    • Loads dropped DLL

    • VMProtect packed file

      Detects executables packed with VMProtect commercial packer.

    • Adds Run key to start application

    • Checks installed software on the system

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

    • Checks whether UAC is enabled

    • Enumerates connected drives

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

    • Legitimate hosting services abused for malware hosting/C2

    • Network Share Discovery

      Attempt to gather information on host network.

    • Checks system information in the registry

      System information is often read in order to detect sandboxing environments.

    • Drops file in System32 directory

MITRE ATT&CK Enterprise v15

Tasks