Analysis

  • max time kernel
    139s
  • max time network
    154s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20240910-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20240910-enlocale:en-usos:windows10-2004-x64system
  • submitted
    19-09-2024 18:15

General

  • Target

    x86/mfH265Enc.dll

  • Size

    973KB

  • MD5

    8a457e50559e29f8ba5188a65b6beae1

  • SHA1

    3c496d4a1c7e4356475cf98b54765d862c48ba22

  • SHA256

    56e68e9505602acfe9d4aec12edc6feaf373715573b272ceea9116ea22ed90f3

  • SHA512

    dea1cea1dae7c7599bb38a2decb44ab3fa03d842d46ea1a902ff950ecd143a0dcd4e8689770537192ad0851fee611ed6346c3fe7f2c0985bd41eed183fbc6809

  • SSDEEP

    24576:IA11gjX/QVpl7gG8geREGQihZ41GvQiAKhr0Iem+aJy4uEfW4gJtIV1boMss5Jnc:Ia1gjXa7gG8geREYAg76m+azu4WjJtIO

Score
3/10

Malware Config

Signatures

  • Program crash 1 IoCs
  • System Location Discovery: System Language Discovery 1 TTPs 1 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 3 IoCs

Processes

  • C:\Windows\system32\rundll32.exe
    rundll32.exe C:\Users\Admin\AppData\Local\Temp\x86\mfH265Enc.dll,#1
    1⤵
    • Suspicious use of WriteProcessMemory
    PID:4004
    • C:\Windows\SysWOW64\rundll32.exe
      rundll32.exe C:\Users\Admin\AppData\Local\Temp\x86\mfH265Enc.dll,#1
      2⤵
      • System Location Discovery: System Language Discovery
      PID:2236
      • C:\Windows\SysWOW64\WerFault.exe
        C:\Windows\SysWOW64\WerFault.exe -u -p 2236 -s 600
        3⤵
        • Program crash
        PID:4460
  • C:\Windows\SysWOW64\WerFault.exe
    C:\Windows\SysWOW64\WerFault.exe -pss -s 412 -p 2236 -ip 2236
    1⤵
      PID:2196

    Network

    MITRE ATT&CK Enterprise v15

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    Downloads