Analysis

  • max time kernel
    150s
  • max time network
    149s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20250314-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20250314-enlocale:en-usos:windows10-2004-x64system
  • submitted
    28/03/2025, 17:28

General

  • Target

    37c9312a75ef93ab05d3d8ed59d4906e876dc57bccac52b065f4f297df28b21b.exe

  • Size

    23KB

  • MD5

    5fbbb1aedabb81dc6c360985266ca192

  • SHA1

    48c86665be1d8389e245cda2afa986d8253157d5

  • SHA256

    37c9312a75ef93ab05d3d8ed59d4906e876dc57bccac52b065f4f297df28b21b

  • SHA512

    e4b882c0b1f76fc8b732900f88141f1ae841f44a4092f5fe0678afab782f0851da18e5fd93c9c59c03934a3651723852d18ccb90540cc01e0a10cc5cb46c34d5

  • SSDEEP

    384:FZcpzCIqdG3A3WUkx38GZDJuJbf1+o44u8gHzUp7A5KkN:SCIqdH/k1ZVcT194jp4pkZN

Malware Config

Signatures

  • Detects MyDoom family 19 IoCs
  • MyDoom

    MyDoom is a Worm that is written in C++.

  • Mydoom family
  • Executes dropped EXE 2 IoCs
  • Adds Run key to start application 2 TTPs 2 IoCs
  • UPX packed file 21 IoCs

    Detects executables packed with UPX/modified UPX open source packer.

  • Drops file in Program Files directory 64 IoCs
  • Drops file in Windows directory 4 IoCs
  • System Location Discovery: System Language Discovery 1 TTPs 2 IoCs

    Attempt gather information about the system language of a victim in order to infer the geographical location of that host.

  • Suspicious use of WriteProcessMemory 6 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\37c9312a75ef93ab05d3d8ed59d4906e876dc57bccac52b065f4f297df28b21b.exe
    "C:\Users\Admin\AppData\Local\Temp\37c9312a75ef93ab05d3d8ed59d4906e876dc57bccac52b065f4f297df28b21b.exe"
    1⤵
    • Adds Run key to start application
    • Drops file in Program Files directory
    • Drops file in Windows directory
    • System Location Discovery: System Language Discovery
    PID:3924
  • C:\Windows\system32\cmd.exe
    C:\Windows\system32\cmd.exe /c C:\Windows\lsass.exe
    1⤵
    • Suspicious use of WriteProcessMemory
    PID:5024
    • C:\Windows\lsass.exe
      C:\Windows\lsass.exe
      2⤵
      • Executes dropped EXE
      • Adds Run key to start application
      • Drops file in Program Files directory
      • Drops file in Windows directory
      • System Location Discovery: System Language Discovery
      PID:3068
  • C:\Windows\system32\cmd.exe
    C:\Windows\system32\cmd.exe /c C:\Windows\lsass.exe
    1⤵
    • Suspicious use of WriteProcessMemory
    PID:4340
    • C:\Windows\lsass.exe
      C:\Windows\lsass.exe
      2⤵
      • Executes dropped EXE
      PID:1204

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

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Downloads

  • C:\Users\Admin\AppData\Local\Temp\kudnl2.txt

    Filesize

    3KB

    MD5

    085159aede86e06bfb0edf46fdcc74e4

    SHA1

    b6921fa93c53217f03f00bcf63f52954eee1971c

    SHA256

    98a7a29a34bcefa9d0f8bd255bbe34585d0cdc4c5d79ece88f5c9bf6e901549b

    SHA512

    0a63220fd66cae044a0074d592ab3c83c95e330733ebc0c4b0c4ec0f5eda25fba7102690700e94f4b08050dd80d1f5d10ab4595acb2a47cae781b386ce4c3019

  • C:\Windows\lsass.exe

    Filesize

    23KB

    MD5

    5fbbb1aedabb81dc6c360985266ca192

    SHA1

    48c86665be1d8389e245cda2afa986d8253157d5

    SHA256

    37c9312a75ef93ab05d3d8ed59d4906e876dc57bccac52b065f4f297df28b21b

    SHA512

    e4b882c0b1f76fc8b732900f88141f1ae841f44a4092f5fe0678afab782f0851da18e5fd93c9c59c03934a3651723852d18ccb90540cc01e0a10cc5cb46c34d5

  • memory/1204-9-0x0000000000800000-0x000000000080D000-memory.dmp

    Filesize

    52KB

  • memory/3068-334-0x0000000000800000-0x000000000080D000-memory.dmp

    Filesize

    52KB

  • memory/3068-401-0x0000000000800000-0x000000000080D000-memory.dmp

    Filesize

    52KB

  • memory/3068-87-0x0000000000800000-0x000000000080D000-memory.dmp

    Filesize

    52KB

  • memory/3068-139-0x0000000000800000-0x000000000080D000-memory.dmp

    Filesize

    52KB

  • memory/3068-340-0x0000000000800000-0x000000000080D000-memory.dmp

    Filesize

    52KB

  • memory/3068-162-0x0000000000800000-0x000000000080D000-memory.dmp

    Filesize

    52KB

  • memory/3068-256-0x0000000000800000-0x000000000080D000-memory.dmp

    Filesize

    52KB

  • memory/3068-338-0x0000000000800000-0x000000000080D000-memory.dmp

    Filesize

    52KB

  • memory/3068-330-0x0000000000800000-0x000000000080D000-memory.dmp

    Filesize

    52KB

  • memory/3924-329-0x0000000000800000-0x000000000080D000-memory.dmp

    Filesize

    52KB

  • memory/3924-333-0x0000000000800000-0x000000000080D000-memory.dmp

    Filesize

    52KB

  • memory/3924-0-0x0000000000800000-0x000000000080D000-memory.dmp

    Filesize

    52KB

  • memory/3924-339-0x0000000000800000-0x000000000080D000-memory.dmp

    Filesize

    52KB

  • memory/3924-161-0x0000000000800000-0x000000000080D000-memory.dmp

    Filesize

    52KB

  • memory/3924-343-0x0000000000800000-0x000000000080D000-memory.dmp

    Filesize

    52KB

  • memory/3924-400-0x0000000000800000-0x000000000080D000-memory.dmp

    Filesize

    52KB

  • memory/3924-86-0x0000000000800000-0x000000000080D000-memory.dmp

    Filesize

    52KB

  • memory/3924-469-0x0000000000800000-0x000000000080D000-memory.dmp

    Filesize

    52KB

  • memory/3924-471-0x0000000000800000-0x000000000080D000-memory.dmp

    Filesize

    52KB