Analysis

  • max time kernel
    136s
  • max time network
    152s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20230221-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20230221-enlocale:en-usos:windows10-2004-x64system
  • submitted
    01/04/2023, 22:42

General

  • Target

    MEMZ-master/NyanMBR/Data/Image/png2bin.py

  • Size

    1KB

  • MD5

    6d6d94f38626dd058abc46f146cb7688

  • SHA1

    cf726d65e5946f1767c57a8861c9636cc7dccbbd

  • SHA256

    400047a3ebd0fd331a6049bb6d44bce3479a4f4a6c1fad120defc2426a3556f9

  • SHA512

    a184a26df513bc5ca215bc2084ad660eb94ff4a0dcf916e15477442e199999b25b05ea97c3ccb7d07812ecb8ac682054b99b6dbc204e1745a65d1150a18d695f

Score
3/10

Malware Config

Signatures

  • Enumerates physical storage devices 1 TTPs

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

  • Checks processor information in registry 2 TTPs 2 IoCs

    Processor information is often read in order to detect sandboxing environments.

  • Modifies Internet Explorer settings 1 TTPs 2 IoCs
  • Modifies registry class 42 IoCs
  • Suspicious behavior: AddClipboardFormatListener 1 IoCs
  • Suspicious use of AdjustPrivilegeToken 2 IoCs
  • Suspicious use of FindShellTrayWindow 1 IoCs
  • Suspicious use of SetWindowsHookEx 1 IoCs

Processes

  • C:\Windows\system32\cmd.exe
    cmd /c C:\Users\Admin\AppData\Local\Temp\MEMZ-master\NyanMBR\Data\Image\png2bin.py
    1⤵
    • Modifies registry class
    PID:2612
  • C:\Windows\system32\OpenWith.exe
    C:\Windows\system32\OpenWith.exe -Embedding
    1⤵
    • Modifies registry class
    • Suspicious use of SetWindowsHookEx
    PID:4764
  • C:\Windows\SysWOW64\DllHost.exe
    C:\Windows\SysWOW64\DllHost.exe /Processid:{06622D85-6856-4460-8DE1-A81921B41C4B}
    1⤵
      PID:1648
    • C:\Windows\explorer.exe
      C:\Windows\explorer.exe /factory,{5BD95610-9434-43C2-886C-57852CC8A120} -Embedding
      1⤵
      • Checks processor information in registry
      • Modifies Internet Explorer settings
      • Modifies registry class
      • Suspicious behavior: AddClipboardFormatListener
      • Suspicious use of AdjustPrivilegeToken
      • Suspicious use of FindShellTrayWindow
      PID:1548

    Network

    MITRE ATT&CK Enterprise v6

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    Downloads