Analysis

  • max time kernel
    30s
  • max time network
    33s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20260513-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20260513-enlocale:en-usos:windows10-2004-x64systemwindows
  • submitted
    04/08/2026, 22:03

General

  • Target
    MultiMC/Qt5Widgets.dll
  • Size 6.2MB
  • Sample260804-1yv5rseq4y
  • SHA256 5c16112f7f7454e2e802f4a18e0b9a9a0086b9ae29bae35892d7d32f3fa81c94
  • 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\MultiMC\Qt5Widgets.dll,#1
    1⤵
    • Suspicious use of WriteProcessMemory
    PID:3908
    • C:\Windows\SysWOW64\rundll32.exe
      rundll32.exe C:\Users\Admin\AppData\Local\Temp\MultiMC\Qt5Widgets.dll,#1
      2⤵
      • System Location Discovery: System Language Discovery
      PID:4308
      • C:\Windows\SysWOW64\WerFault.exe
        C:\Windows\SysWOW64\WerFault.exe -u -p 4308 -s 676
        3⤵
        • Program crash
        PID:3260
  • C:\Windows\SysWOW64\WerFault.exe
    C:\Windows\SysWOW64\WerFault.exe -pss -s 408 -p 4308 -ip 4308
    1⤵
      PID:2644

    Network

          MITRE ATT&CK Enterprise v16

          Replay Monitor

          Loading Replay Monitor...

          Downloads

          memory/4308-0-0x0000000002810000-0x0000000002D85000-memory.dmp

          memory/4308-3-0x0000000068D96000-0x0000000068D97000-memory.dmp

          memory/4308-4-0x0000000068880000-0x0000000068DAF000-memory.dmp

          memory/4308-2-0x0000000002810000-0x0000000002D85000-memory.dmp

          memory/4308-5-0x0000000068880000-0x0000000068DAF000-memory.dmp

          memory/4308-10-0x0000000068880000-0x0000000068DAF000-memory.dmp

          memory/4308-11-0x0000000002810000-0x0000000002D85000-memory.dmp

          memory/4308-9-0x0000000064940000-0x0000000064954000-memory.dmp

          memory/4308-8-0x000000006FC40000-0x000000006FD41000-memory.dmp

          memory/4308-7-0x000000006E940000-0x000000006E964000-memory.dmp

          memory/4308-6-0x0000000061DC0000-0x0000000062404000-memory.dmp