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Analysis

  • max time kernel
    120s
  • max time network
    119s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20240802-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20240802-enlocale:en-usos:windows10-2004-x64system
  • submitted
    29/08/2024, 13:09

General

  • Target

    ae9eb052fcef5c2d53f2d6e458877ed0N.exe

  • Size

    84KB

  • MD5

    ae9eb052fcef5c2d53f2d6e458877ed0

  • SHA1

    6e5eb32ef40105e17cfe73c76d0a4e3f49dd911b

  • SHA256

    12f18b96e16f6d4b3f839eaa13f45aa0c477a4435a6ba74b1dd7ce1d4f9b5c88

  • SHA512

    505b623aae16ca55966c40d4e3bffc3fe1d4576c7e31a8cbe896f9c02197454942a6cebe073204e9ba30684ed2f6365a203ba1060d5a6bf920f4cb2c164963cf

  • SSDEEP

    768:wjCvD2eMLPbIryoShe+rzVRD2s5HcwHD0wg8hwPrL8O4d94deoVDAADY4BO0BvXu:wqDPyw+rzz3JpgfvXx4

Malware Config

Signatures

  • Modifies visiblity of hidden/system files in Explorer 2 TTPs 1 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 1 IoCs
  • Enumerates physical storage devices 1 TTPs

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

  • System Location Discovery: System Language Discovery 1 TTPs 2 IoCs

    Attempt gather information about the system language of a victim in order to infer the geographical location of that host.

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

Processes

  • C:\Users\Admin\AppData\Local\Temp\ae9eb052fcef5c2d53f2d6e458877ed0N.exe
    "C:\Users\Admin\AppData\Local\Temp\ae9eb052fcef5c2d53f2d6e458877ed0N.exe"
    1⤵
    • Checks computer location settings
    • System Location Discovery: System Language Discovery
    • Suspicious use of SetWindowsHookEx
    • Suspicious use of WriteProcessMemory
    PID:4716
    • C:\Users\Admin\rioalo.exe
      "C:\Users\Admin\rioalo.exe"
      2⤵
      • Modifies visiblity of hidden/system files in Explorer
      • Executes dropped EXE
      • Adds Run key to start application
      • System Location Discovery: System Language Discovery
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of SetWindowsHookEx
      • Suspicious use of WriteProcessMemory
      PID:4416

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

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Downloads

  • C:\Users\Admin\rioalo.exe

    Filesize

    84KB

    MD5

    cdd2dfedbb0bfa40f0071c3ef748e02b

    SHA1

    700c6f157cc940e9502ad84f44e9d4eea8ae2e25

    SHA256

    699ad00e60e297a6f06c083f853259353137c798a4c73a777ba450ed7b6c34df

    SHA512

    366d69b4c357b1349b3661af929d906e4417830d14e039ca05fe89a616aaed5a5c2b140f3c4ca3fe1f0b0fc2bfd7067a80528505e349297f5a3c3e816a8e8884