General

  • Target

    5aec41b20cfb38cbec578dacb8107b16604158d1ddb657b3249171e24386307c

  • Size

    350KB

  • Sample

    221013-steyzsbbep

  • MD5

    604a2c50b2e9b31583db35a8acb2c620

  • SHA1

    6f6265c5183e1bdb8f679869278c1de9485b676d

  • SHA256

    5aec41b20cfb38cbec578dacb8107b16604158d1ddb657b3249171e24386307c

  • SHA512

    a96ddb0406e67890a24319b09ba0760c3186050f3ac44050cc43945946e5036da18fb222badc3d0537e9896736aa030948b4742df0158bc922afb5b8136557f1

  • SSDEEP

    6144:1yXu7IEBSsQ9ElMwm60lmqs7MTRGA3h3GVqdppJXEGhBukJF/KAwxFUOWdEmh:13BdQLL4BE93NGVYZX9BukJlwxSJdEm

Malware Config

Targets

    • Target

      5aec41b20cfb38cbec578dacb8107b16604158d1ddb657b3249171e24386307c

    • Size

      350KB

    • MD5

      604a2c50b2e9b31583db35a8acb2c620

    • SHA1

      6f6265c5183e1bdb8f679869278c1de9485b676d

    • SHA256

      5aec41b20cfb38cbec578dacb8107b16604158d1ddb657b3249171e24386307c

    • SHA512

      a96ddb0406e67890a24319b09ba0760c3186050f3ac44050cc43945946e5036da18fb222badc3d0537e9896736aa030948b4742df0158bc922afb5b8136557f1

    • SSDEEP

      6144:1yXu7IEBSsQ9ElMwm60lmqs7MTRGA3h3GVqdppJXEGhBukJF/KAwxFUOWdEmh:13BdQLL4BE93NGVYZX9BukJlwxSJdEm

    • Drops file in Drivers directory

    • Possible privilege escalation attempt

    • Sets service image path in registry

    • UPX packed file

      Detects executables packed with UPX/modified UPX open source packer.

    • Deletes itself

    • Modifies file permissions

    • Installs/modifies Browser Helper Object

      BHOs are DLL modules which act as plugins for Internet Explorer.

    • Drops file in System32 directory

MITRE ATT&CK Matrix ATT&CK v6

Persistence

Registry Run Keys / Startup Folder

1
T1060

Browser Extensions

1
T1176

Defense Evasion

Modify Registry

2
T1112

File Permissions Modification

1
T1222

Tasks