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Analysis

  • max time kernel
    190s
  • max time network
    205s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20240226-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20240226-enlocale:en-usos:windows10-2004-x64system
  • submitted
    09/04/2024, 20:09

General

  • Target

    a3a883deb0920aca2147e9bc790bd29e.exe

  • Size

    156KB

  • MD5

    a3a883deb0920aca2147e9bc790bd29e

  • SHA1

    0b06feef7b46fbae18046fa10696641dcb7d2525

  • SHA256

    8fca81f4bb1fd5c2657f10f1f3286be89a21fe7fec34298c967a8982f4357f50

  • SHA512

    c8d37b803139c33a22ce16c89779a83236f60f1bbbb0be87dfb404fd51e323d5312a0fd5a7a19d2e509b69b0b21405cfb8686022b2074b33d1704c8846dda0d3

  • SSDEEP

    3072:tKzhSpGbGb6JUBGnvZHpXtNLdZkkVYaZvLStH/h7yc2dV4oQZiE3T:YljbGb6JaGnvZZtNLdZkRapLmH8c2dnc

Score
10/10

Malware Config

Signatures

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

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

  • Executes dropped EXE 1 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).

  • Suspicious behavior: EnumeratesProcesses 64 IoCs
  • Suspicious use of SetWindowsHookEx 2 IoCs
  • Suspicious use of WriteProcessMemory 3 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\a3a883deb0920aca2147e9bc790bd29e.exe
    "C:\Users\Admin\AppData\Local\Temp\a3a883deb0920aca2147e9bc790bd29e.exe"
    1⤵
    • Modifies visiblity of hidden/system files in Explorer
    • Checks computer location settings
    • Adds Run key to start application
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of SetWindowsHookEx
    • Suspicious use of WriteProcessMemory
    PID:2240
    • C:\Users\Admin\jmnay.exe
      "C:\Users\Admin\jmnay.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:3680

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

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Downloads

  • C:\Users\Admin\jmnay.exe

    Filesize

    156KB

    MD5

    e2e612b95265dc9fad221e14252e8e11

    SHA1

    1bd5676a20fd03828ab2ed1a9358a7597787b711

    SHA256

    98d2aa146c2fe7d0f04087c015347c8498358b84d8dc0628845e4b8e299a5aaa

    SHA512

    1916e07742f023d9787a4c1fab8b32a098ac9f16d8590785f4c0dcbd9d6e5a3a6eafe7d0f20cc030cf35c71b4393bed90e20aa8054bebbd60f8bb0f421ced7ce