Analysis

  • max time kernel
    71s
  • max time network
    92s
  • 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/Animation/playNote.asm

  • Size

    449B

  • MD5

    aab218c275452e7836b9ad8abaa61d59

  • SHA1

    a35bc4feac53d0d84a06bddd447b366d4ef104fa

  • SHA256

    a8f9977fcfe64dfe44b60e4ae57147c036b46a2d5b2f35757d3a215a8212411d

  • SHA512

    dd55addb5e9240af4768996c02688c842d9f287a1874b148ad66df311c95e9345b16c905b74f35195bc7b324efafb67e750f62955d17acfa63d7e8767e7091a9

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\Animation\playNote.asm
    1⤵
    • Modifies registry class
    PID:2300
  • C:\Windows\system32\OpenWith.exe
    C:\Windows\system32\OpenWith.exe -Embedding
    1⤵
    • Modifies registry class
    • Suspicious use of SetWindowsHookEx
    PID:4452

Network

MITRE ATT&CK Enterprise v6

Replay Monitor

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Downloads