Analysis

  • max time kernel
    149s
  • max time network
    155s
  • 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/Qt5Core.dll
  • Size 5.1MB
  • Sample260804-1yv5rseq4y
  • SHA256 79b83c43af99a9cb72a744ae2262c090227907907e8f2deb937cd4e1f0965e4d
  • 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\Qt5Core.dll,#1
    1⤵
    • Suspicious use of WriteProcessMemory
    PID:3244
    • C:\Windows\SysWOW64\rundll32.exe
      rundll32.exe C:\Users\Admin\AppData\Local\Temp\MultiMC\Qt5Core.dll,#1
      2⤵
      • System Location Discovery: System Language Discovery
      PID:1468
      • C:\Windows\SysWOW64\WerFault.exe
        C:\Windows\SysWOW64\WerFault.exe -u -p 1468 -s 676
        3⤵
        • Program crash
        PID:3388
  • C:\Windows\SysWOW64\WerFault.exe
    C:\Windows\SysWOW64\WerFault.exe -pss -s 408 -p 1468 -ip 1468
    1⤵
      PID:5040

    Network

          MITRE ATT&CK Enterprise v16

          Replay Monitor

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          Downloads

          memory/1468-0-0x0000000068D96000-0x0000000068D97000-memory.dmp

          memory/1468-4-0x000000006FC40000-0x000000006FD41000-memory.dmp

          memory/1468-3-0x0000000064940000-0x0000000064954000-memory.dmp

          memory/1468-1-0x0000000068880000-0x0000000068DAF000-memory.dmp

          memory/1468-2-0x000000006E940000-0x000000006E964000-memory.dmp