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Analysis

  • max time kernel
    153s
  • max time network
    31s
  • platform
    windows7_x64
  • resource
    win7-20221111-en
  • resource tags

    arch:x64arch:x86image:win7-20221111-enlocale:en-usos:windows7-x64system
  • submitted
    29/11/2022, 17:13

General

  • Target

    b4402239bf264cf894112a70483b6dfaa0bf97029db147dfd3e8fdd9a7e5bdf0.exe

  • Size

    196KB

  • MD5

    45865a7b63df4f876e067301df5b14ad

  • SHA1

    37ea93a4420028945e8b9e06a7edb2854cd30eb6

  • SHA256

    b4402239bf264cf894112a70483b6dfaa0bf97029db147dfd3e8fdd9a7e5bdf0

  • SHA512

    131498ffe6c25160bcff1b8c63d62731dc3165fecdeb0a82ef9cd39fe181fa9d259ade5fe919b657dca94fbabca8c6349b14321755692af116ea0a0718513077

  • SSDEEP

    3072:1uAkoaXd323AKyXzUiKiJeIMUyJA0jNGgu0CHRf7nOa682EHqNo3m5p:1uAko1yNKiJeIMHBJGg9Cxf7XHwo36

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 2 IoCs
  • Enumerates physical storage devices 1 TTPs

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

  • Suspicious behavior: EnumeratesProcesses 1 IoCs
  • Suspicious use of SetWindowsHookEx 2 IoCs
  • Suspicious use of WriteProcessMemory 4 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\b4402239bf264cf894112a70483b6dfaa0bf97029db147dfd3e8fdd9a7e5bdf0.exe
    "C:\Users\Admin\AppData\Local\Temp\b4402239bf264cf894112a70483b6dfaa0bf97029db147dfd3e8fdd9a7e5bdf0.exe"
    1⤵
    • Modifies visiblity of hidden/system files in Explorer
    • Loads dropped DLL
    • Adds Run key to start application
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of SetWindowsHookEx
    • Suspicious use of WriteProcessMemory
    PID:960
    • C:\Users\Admin\wuolay.exe
      "C:\Users\Admin\wuolay.exe"
      2⤵
      • Executes dropped EXE
      • Suspicious use of SetWindowsHookEx
      PID:1528

Network

MITRE ATT&CK Enterprise v6

Replay Monitor

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Downloads

  • C:\Users\Admin\wuolay.exe

    Filesize

    196KB

    MD5

    f431e4df36fb02636c2f913aa734b344

    SHA1

    6465eee3fe2956e02e54f29e5e03818124e5ab27

    SHA256

    5668dd638eb1704f75703ff857d31a5f01a56e2fab0fc3fea12838f853037970

    SHA512

    b092c17ec30d018c38a0894a914df44a44be22c7d38b3fdb500592177dc8a366c1261f402c2cc4f71a2e79a03815272d015518ade02cfdba1de68575b86d2dec

  • C:\Users\Admin\wuolay.exe

    Filesize

    196KB

    MD5

    f431e4df36fb02636c2f913aa734b344

    SHA1

    6465eee3fe2956e02e54f29e5e03818124e5ab27

    SHA256

    5668dd638eb1704f75703ff857d31a5f01a56e2fab0fc3fea12838f853037970

    SHA512

    b092c17ec30d018c38a0894a914df44a44be22c7d38b3fdb500592177dc8a366c1261f402c2cc4f71a2e79a03815272d015518ade02cfdba1de68575b86d2dec

  • \Users\Admin\wuolay.exe

    Filesize

    196KB

    MD5

    f431e4df36fb02636c2f913aa734b344

    SHA1

    6465eee3fe2956e02e54f29e5e03818124e5ab27

    SHA256

    5668dd638eb1704f75703ff857d31a5f01a56e2fab0fc3fea12838f853037970

    SHA512

    b092c17ec30d018c38a0894a914df44a44be22c7d38b3fdb500592177dc8a366c1261f402c2cc4f71a2e79a03815272d015518ade02cfdba1de68575b86d2dec

  • \Users\Admin\wuolay.exe

    Filesize

    196KB

    MD5

    f431e4df36fb02636c2f913aa734b344

    SHA1

    6465eee3fe2956e02e54f29e5e03818124e5ab27

    SHA256

    5668dd638eb1704f75703ff857d31a5f01a56e2fab0fc3fea12838f853037970

    SHA512

    b092c17ec30d018c38a0894a914df44a44be22c7d38b3fdb500592177dc8a366c1261f402c2cc4f71a2e79a03815272d015518ade02cfdba1de68575b86d2dec

  • memory/960-56-0x00000000753D1000-0x00000000753D3000-memory.dmp

    Filesize

    8KB