Analysis

  • max time kernel
    142s
  • max time network
    145s
  • platform
    windows10-1703_x64
  • resource
    win10-20220812-en
  • resource tags

    arch:x64arch:x86image:win10-20220812-enlocale:en-usos:windows10-1703-x64system
  • submitted
    16/02/2023, 20:43

General

  • Target

    MEMZ-master/NyanMBR/Source/Stage2/Setup/setupTimer.asm

  • Size

    45B

  • MD5

    ec579ce072a58fdfa4915d8ab3d1fe2d

  • SHA1

    dfee5d1846556e59771c4a0c5587ce8c281d4e2c

  • SHA256

    48ef61de666bdcf95f801a546723085f8fd7b269fb74dd980bd5c061d77bd939

  • SHA512

    971ad8f924bb769babf8921fdc8ea5273ac9e017a0b345f5b079c40756ab6e51928d86900e073826ce3e4c40b23a21f427ca7b62fb471096ae8330bad1a5cf60

Score
3/10

Malware Config

Signatures

  • Enumerates physical storage devices 1 TTPs

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

  • Modifies registry class 2 IoCs
  • Suspicious use of SetWindowsHookEx 1 IoCs

Processes

  • C:\Windows\system32\cmd.exe
    cmd /c C:\Users\Admin\AppData\Local\Temp\MEMZ-master\NyanMBR\Source\Stage2\Setup\setupTimer.asm
    1⤵
    • Modifies registry class
    PID:2668
  • C:\Windows\system32\OpenWith.exe
    C:\Windows\system32\OpenWith.exe -Embedding
    1⤵
    • Modifies registry class
    • Suspicious use of SetWindowsHookEx
    PID:3772

Network

MITRE ATT&CK Enterprise v6

Replay Monitor

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Downloads