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Analysis

  • max time kernel
    205s
  • max time network
    210s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20221111-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20221111-enlocale:en-usos:windows10-2004-x64system
  • submitted
    05/12/2022, 23:09

General

  • Target

    0045a01a972803b6709bd1d276e8aa000d9870ae90cae0ef66c2f138b9e8bcc5.exe

  • Size

    140KB

  • MD5

    03ad175f6ba14fd44f890d617ff4a263

  • SHA1

    4a3b9b5b685cefcb05aa633ee7c2aa85b01bb914

  • SHA256

    0045a01a972803b6709bd1d276e8aa000d9870ae90cae0ef66c2f138b9e8bcc5

  • SHA512

    c78355c06ad1c6fd381e2300198aa1f68822fb08ee435aa674e2aa2bf48710e6ad8fd4e402b45518d7d1700435a24a8aa13c69c801e7cb7121b6d01577488870

  • SSDEEP

    3072:FbsubuLuwgRkWwuXdzDwWX0fTIZOaA481GkQr+drjOBgqEqh:FPuTWwuXdzDwWX0fTIZOaAYkQrGrjOBq

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 53 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 3 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\0045a01a972803b6709bd1d276e8aa000d9870ae90cae0ef66c2f138b9e8bcc5.exe
    "C:\Users\Admin\AppData\Local\Temp\0045a01a972803b6709bd1d276e8aa000d9870ae90cae0ef66c2f138b9e8bcc5.exe"
    1⤵
    • Checks computer location settings
    • Suspicious use of SetWindowsHookEx
    • Suspicious use of WriteProcessMemory
    PID:4364
    • C:\Users\Admin\bdkoor.exe
      "C:\Users\Admin\bdkoor.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
      PID:4728

Network

MITRE ATT&CK Enterprise v6

Replay Monitor

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Downloads

  • C:\Users\Admin\bdkoor.exe

    Filesize

    140KB

    MD5

    438d6ca035f4fd327a41ddb70a526c2f

    SHA1

    a4cfb20dcbd012b6402d96fba0e8e82ba7ddd706

    SHA256

    e947e3671baccc65875fb12f5612c08f057cc5938dd2d650f78649ffa14552f4

    SHA512

    8ebc11c8373c5dbb53e10193299484f455fd3fa448a5f7a616f5efca5da85880394ae93fcf94bcdcc57f60382bb1f241c630ba8a658084c02bcc180000804570

  • C:\Users\Admin\bdkoor.exe

    Filesize

    140KB

    MD5

    438d6ca035f4fd327a41ddb70a526c2f

    SHA1

    a4cfb20dcbd012b6402d96fba0e8e82ba7ddd706

    SHA256

    e947e3671baccc65875fb12f5612c08f057cc5938dd2d650f78649ffa14552f4

    SHA512

    8ebc11c8373c5dbb53e10193299484f455fd3fa448a5f7a616f5efca5da85880394ae93fcf94bcdcc57f60382bb1f241c630ba8a658084c02bcc180000804570