Analysis

  • max time kernel
    151s
  • max time network
    43s
  • platform
    windows7_x64
  • resource
    win7-20220812-en
  • resource tags

    arch:x64arch:x86image:win7-20220812-enlocale:en-usos:windows7-x64system
  • submitted
    05/12/2022, 22:52

General

  • Target

    b568a0e7df6db8baddcb29ee5b84d288673e25d62ecf88fbb951bbc3aa04f19a.exe

  • Size

    152KB

  • MD5

    26690fad026f142ad4e745e96072b083

  • SHA1

    d83362c96201eb51559eb5270fadcd40473dd58c

  • SHA256

    b568a0e7df6db8baddcb29ee5b84d288673e25d62ecf88fbb951bbc3aa04f19a

  • SHA512

    d205aedb4d1b01b5f6065eaea7acd929d1c0e7491905d89c5c62c2dea23a6f3896f51d1aa51f425f4e58da59838b1760cc4d399f0a5c4bbba80310b41ba231a6

  • SSDEEP

    1536:BhCmF+VoV6qZO5WV9PZ1K+smtK4/ZWnKjjWce:BhCmF+VoV6qZO5W7afKjv

Score
10/10

Malware Config

Signatures

  • Modifies visiblity of hidden/system files in Explorer 2 TTPs 1 IoCs
  • Executes dropped EXE 1 IoCs
  • Loads dropped DLL 2 IoCs
  • Adds Run key to start application 2 TTPs 52 IoCs
  • Enumerates physical storage devices 1 TTPs

    Attempts to interact with connected storage/optical drive(s). Likely ransomware behaviour.

  • Suspicious behavior: EnumeratesProcesses 64 IoCs
  • Suspicious use of SetWindowsHookEx 2 IoCs
  • Suspicious use of WriteProcessMemory 64 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\b568a0e7df6db8baddcb29ee5b84d288673e25d62ecf88fbb951bbc3aa04f19a.exe
    "C:\Users\Admin\AppData\Local\Temp\b568a0e7df6db8baddcb29ee5b84d288673e25d62ecf88fbb951bbc3aa04f19a.exe"
    1⤵
    • Loads dropped DLL
    • Suspicious use of SetWindowsHookEx
    • Suspicious use of WriteProcessMemory
    PID:784
    • C:\Users\Admin\kuyuh.exe
      "C:\Users\Admin\kuyuh.exe"
      2⤵
      • Modifies visiblity of hidden/system files in Explorer
      • Executes dropped EXE
      • Adds Run key to start application
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of SetWindowsHookEx
      • Suspicious use of WriteProcessMemory
      PID:2004

Network

MITRE ATT&CK Enterprise v6

Replay Monitor

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Downloads

  • C:\Users\Admin\kuyuh.exe

    Filesize

    152KB

    MD5

    31f1a7894205177bfb70b55ffbca7ae7

    SHA1

    0ef57f389822004f8343633f36350bc4ee111750

    SHA256

    888415fe38debb8cb143452bb80f801a10a03e6926bafc68ff5887a792e7a8ae

    SHA512

    53d9b00c3fff10937239ad9a8149539540b6e8b7d972b25674dddf18d11a28c63acd3fa51aa99fe1d7b247b93f254fe610eb6087b6471f8b461bb51c5a25415d

  • C:\Users\Admin\kuyuh.exe

    Filesize

    152KB

    MD5

    31f1a7894205177bfb70b55ffbca7ae7

    SHA1

    0ef57f389822004f8343633f36350bc4ee111750

    SHA256

    888415fe38debb8cb143452bb80f801a10a03e6926bafc68ff5887a792e7a8ae

    SHA512

    53d9b00c3fff10937239ad9a8149539540b6e8b7d972b25674dddf18d11a28c63acd3fa51aa99fe1d7b247b93f254fe610eb6087b6471f8b461bb51c5a25415d

  • \Users\Admin\kuyuh.exe

    Filesize

    152KB

    MD5

    31f1a7894205177bfb70b55ffbca7ae7

    SHA1

    0ef57f389822004f8343633f36350bc4ee111750

    SHA256

    888415fe38debb8cb143452bb80f801a10a03e6926bafc68ff5887a792e7a8ae

    SHA512

    53d9b00c3fff10937239ad9a8149539540b6e8b7d972b25674dddf18d11a28c63acd3fa51aa99fe1d7b247b93f254fe610eb6087b6471f8b461bb51c5a25415d

  • \Users\Admin\kuyuh.exe

    Filesize

    152KB

    MD5

    31f1a7894205177bfb70b55ffbca7ae7

    SHA1

    0ef57f389822004f8343633f36350bc4ee111750

    SHA256

    888415fe38debb8cb143452bb80f801a10a03e6926bafc68ff5887a792e7a8ae

    SHA512

    53d9b00c3fff10937239ad9a8149539540b6e8b7d972b25674dddf18d11a28c63acd3fa51aa99fe1d7b247b93f254fe610eb6087b6471f8b461bb51c5a25415d

  • memory/784-56-0x0000000075FC1000-0x0000000075FC3000-memory.dmp

    Filesize

    8KB