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Analysis

  • max time kernel
    151s
  • max time network
    110s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20220901-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20220901-enlocale:en-usos:windows10-2004-x64system
  • submitted
    30/10/2022, 18:15

General

  • Target

    201fc659a2af447a0f3fa21433216206ec6e0f56e452b976d8b9330dc0ff5405.exe

  • Size

    92KB

  • MD5

    82d7c0abc5f09a53dfc9178979b92d00

  • SHA1

    95990398e47845b3e326d1d90d2682128ca7c668

  • SHA256

    201fc659a2af447a0f3fa21433216206ec6e0f56e452b976d8b9330dc0ff5405

  • SHA512

    5b9ccd8a1b9b3eea12867331153c4994c9519b0367bd5f7015ef1c12b3e8f28d0b7ebfcd27189f80d2ab994f70e545fbb3ffce721e9c34f4fa328d666aa0de98

  • SSDEEP

    768:eweJK9nvPmaFFsH8cnW0ecO7fchJh51cTDge1VY/q45C2T1G+mt5QDbn0Pb:ewDFY8cn3ZeMaauCDbn0z

Score
10/10

Malware Config

Signatures

  • Modifies visiblity of hidden/system files in Explorer 2 TTPs 1 IoCs
  • Executes dropped EXE 1 IoCs
  • Checks computer location settings 2 TTPs 1 IoCs

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

  • Adds Run key to start application 2 TTPs 51 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\201fc659a2af447a0f3fa21433216206ec6e0f56e452b976d8b9330dc0ff5405.exe
    "C:\Users\Admin\AppData\Local\Temp\201fc659a2af447a0f3fa21433216206ec6e0f56e452b976d8b9330dc0ff5405.exe"
    1⤵
    • Checks computer location settings
    • Suspicious use of SetWindowsHookEx
    • Suspicious use of WriteProcessMemory
    PID:4640
    • C:\Users\Admin\wiepuim.exe
      "C:\Users\Admin\wiepuim.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:2360

Network

MITRE ATT&CK Enterprise v6

Replay Monitor

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Downloads

  • C:\Users\Admin\wiepuim.exe

    Filesize

    92KB

    MD5

    725a7879532730a14c1ef86d3d0832aa

    SHA1

    a701888193c1e753e3bb5dbea7a58e71f6afb99d

    SHA256

    8d7e878b9fe6c3f18eb8a5c50615635e62a57fd76f7d3968cefbbd7d7d44ec9d

    SHA512

    4c557dc19addd8713fa115a12dd086234d17babb7bbe87e47da3a2441304c25bc88175e70f54138a6686853bd416cecdec6612251f57a64168e8f50196105e8d

  • C:\Users\Admin\wiepuim.exe

    Filesize

    92KB

    MD5

    725a7879532730a14c1ef86d3d0832aa

    SHA1

    a701888193c1e753e3bb5dbea7a58e71f6afb99d

    SHA256

    8d7e878b9fe6c3f18eb8a5c50615635e62a57fd76f7d3968cefbbd7d7d44ec9d

    SHA512

    4c557dc19addd8713fa115a12dd086234d17babb7bbe87e47da3a2441304c25bc88175e70f54138a6686853bd416cecdec6612251f57a64168e8f50196105e8d