Analysis

  • max time kernel
    110s
  • max time network
    113s
  • 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/Interrupts/keyboardHandler.asm

  • Size

    239B

  • MD5

    973cce0ca5ea55216e27c589df381acd

  • SHA1

    a310d05b62e28fb54cc1e2434dc63cbb0e23bd88

  • SHA256

    c87cffc5428cc816515f1cea6bf99486c84971e305e2c8b4ccbb76bce6599162

  • SHA512

    cb3cb9aafdf86f1979c97d6b87a3d42207f7c7ef9903ba0a6753f65b89e7fd6bbca761836e5c2b4dd0c3dea2e70522a98d6e0390254305e6deeb4a4b2da9f504

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\Interrupts\keyboardHandler.asm
    1⤵
    • Modifies registry class
    PID:2384
  • C:\Windows\system32\OpenWith.exe
    C:\Windows\system32\OpenWith.exe -Embedding
    1⤵
    • Modifies registry class
    • Suspicious use of SetWindowsHookEx
    PID:2936

Network

MITRE ATT&CK Enterprise v6

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Downloads