Analysis

  • max time kernel
    149s
  • max time network
    99s
  • platform
    windows11-21h2_x64
  • resource
    win11-20260130-en
  • resource tags

    arch:x64arch:x86image:win11-20260130-enlocale:en-usos:windows11-21h2-x64systemwindows
  • submitted
    02/05/2026, 12:37

General

  • Target
    Loader/Lib/Qt5Multimedia.dll
  • Size 575KB
  • Sample260502-ptpxeafy21
  • SHA256 7cfbbe1189ea41902c393b7471b6a0c5708faddc11c40a7f68e06e714ef89066
  • MD5 SHA1 SHA512 SSDEEP TLSH
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 1 IoCs

Processes

  • C:\Windows\system32\rundll32.exe
    rundll32.exe C:\Users\Admin\AppData\Local\Temp\Loader\Lib\Qt5Multimedia.dll,#1
    1⤵
    • Suspicious use of WriteProcessMemory
    PID:3684
    • C:\Windows\SysWOW64\rundll32.exe
      rundll32.exe C:\Users\Admin\AppData\Local\Temp\Loader\Lib\Qt5Multimedia.dll,#1
      2⤵
      • System Location Discovery: System Language Discovery
      PID:4992
      • C:\Windows\SysWOW64\WerFault.exe
        C:\Windows\SysWOW64\WerFault.exe -u -p 4992 -s 660
        3⤵
        • Program crash
        PID:2684
  • C:\Windows\SysWOW64\WerFault.exe
    C:\Windows\SysWOW64\WerFault.exe -pss -s 408 -p 4992 -ip 4992
    1⤵
      PID:3980

    Network

          MITRE ATT&CK Enterprise v16

          Replay Monitor

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          Downloads

          memory/4992-1-0x0000000000C40000-0x0000000000C47000-memory.dmp

          memory/4992-0-0x0000000000780000-0x000000000085F000-memory.dmp