Analysis

  • max time kernel
    148s
  • max time network
    132s
  • platform
    windows11-ltsc_2024_x64
  • resource
    win11ltsc2024-20260709-en
  • resource tags

    arch:x64arch:x86image:win11ltsc2024-20260709-enlocale:en-usos:windows11-ltsc_2024-x64systemwindows
  • submitted
    01/08/2026, 01:38

General

  • Target
    $PLUGINSDIR/Nsis7z.dll
  • Size 499KB
  • Sample260801-b2ws2at1ex
  • SHA256 f8054bc8bbdde15e4538bfeef2c8cf61f7841c39bfec0f840ee384c4db6acad2
  • 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\$PLUGINSDIR\Nsis7z.dll,#1
    1⤵
    • Suspicious use of WriteProcessMemory
    PID:4300
    • C:\Windows\SysWOW64\rundll32.exe
      rundll32.exe C:\Users\Admin\AppData\Local\Temp\$PLUGINSDIR\Nsis7z.dll,#1
      2⤵
      • System Location Discovery: System Language Discovery
      PID:5816
      • C:\Windows\SysWOW64\WerFault.exe
        C:\Windows\SysWOW64\WerFault.exe -u -p 5816 -s 528
        3⤵
        • Program crash
        PID:2708
  • C:\Windows\SysWOW64\WerFault.exe
    C:\Windows\SysWOW64\WerFault.exe -pss -s 444 -p 5816 -ip 5816
    1⤵
      PID:716

    Network

          MITRE ATT&CK Enterprise v16

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          Downloads