Analysis

  • max time kernel
    102s
  • max time network
    17s
  • platform
    windows7_x64
  • resource
    win7-20240705-en
  • resource tags

    arch:x64arch:x86image:win7-20240705-enlocale:en-usos:windows7-x64system
  • submitted
    12-08-2024 01:58

General

  • Target

    ryomen.pyc

  • Size

    13KB

  • MD5

    d0b035072cc904311841848e8b9cbdc4

  • SHA1

    9e4ca44e796cc2836f79e1c3e4be036234ccfe36

  • SHA256

    9daf11520957ee1e9bd446ce6bbbc473318f6f48e98d8ccfa36a00379a1b45f6

  • SHA512

    f9783025f0f9b0b702327dc45045440fc27e9a97134fce555bc3da7af89379cd7df1429336f780bb99c8c51e5b2f8707f5d892a3d8b57555f20f4b0f806516e5

  • SSDEEP

    192:oLZg6jPB3MLw237AePzaYR+NnwSXCkYyLXRi/54X4mRK0UZcB+WqAq38:oLBcz37AIzfRUwSSoNA5M4mM0Ugvss

Score
3/10

Malware Config

Signatures

  • Enumerates physical storage devices 1 TTPs

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

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

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

  • Modifies registry class 9 IoCs
  • Suspicious behavior: GetForegroundWindowSpam 1 IoCs
  • Suspicious use of SetWindowsHookEx 2 IoCs
  • Suspicious use of WriteProcessMemory 7 IoCs

Processes

  • C:\Windows\system32\cmd.exe
    cmd /c C:\Users\Admin\AppData\Local\Temp\ryomen.pyc
    1⤵
    • Suspicious use of WriteProcessMemory
    PID:2320
    • C:\Windows\system32\rundll32.exe
      "C:\Windows\system32\rundll32.exe" C:\Windows\system32\shell32.dll,OpenAs_RunDLL C:\Users\Admin\AppData\Local\Temp\ryomen.pyc
      2⤵
      • Modifies registry class
      • Suspicious use of WriteProcessMemory
      PID:2764
      • C:\Program Files (x86)\Adobe\Reader 9.0\Reader\AcroRd32.exe
        "C:\Program Files (x86)\Adobe\Reader 9.0\Reader\AcroRd32.exe" "C:\Users\Admin\AppData\Local\Temp\ryomen.pyc"
        3⤵
        • System Location Discovery: System Language Discovery
        • Suspicious behavior: GetForegroundWindowSpam
        • Suspicious use of SetWindowsHookEx
        PID:2836

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

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Downloads

  • C:\Users\Admin\AppData\Roaming\Adobe\Acrobat\9.0\SharedDataEvents

    Filesize

    3KB

    MD5

    9fa96621525fc8402b82e6c9953b4baf

    SHA1

    f44044ef8fa5d0c87bab5b963d2e4874be9954cb

    SHA256

    ab03ee7618af23104f1f4a1dde5fdfe0284a54097b8d564387b15b78cc727b58

    SHA512

    fd5dcad28247d39a2f4d49f2832007542ac308aee8410091af2ffefc92a75fd1f8c2733b079d92f87b6f6bcd185b30b89ac9886f6211b350d4915fcf34995c34