Analysis

  • max time kernel
    149s
  • max time network
    118s
  • platform
    windows7_x64
  • resource
    win7-20240221-en
  • resource tags

    arch:x64arch:x86image:win7-20240221-enlocale:en-usos:windows7-x64system
  • submitted
    24-02-2024 13:14

General

  • Target

    joker.exe

  • Size

    65KB

  • MD5

    49c80674d3bf97ed0574c1cd6f625983

  • SHA1

    fc7b6be05918098cafd1bf273f3da25d8735b95d

  • SHA256

    fc4a9a452313a34724e59b38bf3a2a04898219c139705d0966959f75232246c2

  • SHA512

    0fdd468b8361e8f9fce386ced3bcd1c78f60e98e42e067cf9cd62ec95172b0f232943d7d75474b5a2fc0e88ac39480f43485233e289d28d60301699a1ecf9604

  • SSDEEP

    1536:q0JN9XygoN36toQviFw1g3kAtlcBnvAHfLteF3nLrB9z3nFaF9bJS9vM:qA9XygoN36toQviFC4kAtqBnYfWl9z1a

Score
7/10

Malware Config

Signatures

  • Drops startup file 3 IoCs
  • Adds Run key to start application 2 TTPs 2 IoCs
  • Kills process with taskkill 2 IoCs
  • Suspicious behavior: EnumeratesProcesses 7 IoCs
  • Suspicious use of AdjustPrivilegeToken 37 IoCs
  • Suspicious use of WriteProcessMemory 8 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\joker.exe
    "C:\Users\Admin\AppData\Local\Temp\joker.exe"
    1⤵
    • Drops startup file
    • Adds Run key to start application
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:2876
    • C:\Windows\SysWOW64\TASKKILL.exe
      TASKKILL /F /IM wscript.exe
      2⤵
      • Kills process with taskkill
      • Suspicious use of AdjustPrivilegeToken
      PID:2488
    • C:\Windows\SysWOW64\TASKKILL.exe
      TASKKILL /F /IM cmd.exe
      2⤵
      • Kills process with taskkill
      • Suspicious use of AdjustPrivilegeToken
      PID:2944

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

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Downloads

  • memory/2876-0-0x0000000074F20000-0x00000000754CB000-memory.dmp

    Filesize

    5.7MB

  • memory/2876-1-0x0000000000A80000-0x0000000000AC0000-memory.dmp

    Filesize

    256KB

  • memory/2876-2-0x0000000074F20000-0x00000000754CB000-memory.dmp

    Filesize

    5.7MB

  • memory/2876-17-0x0000000074F20000-0x00000000754CB000-memory.dmp

    Filesize

    5.7MB

  • memory/2876-18-0x0000000000A80000-0x0000000000AC0000-memory.dmp

    Filesize

    256KB

  • memory/2876-19-0x0000000074F20000-0x00000000754CB000-memory.dmp

    Filesize

    5.7MB