Analysis

  • max time kernel
    149s
  • max time network
    151s
  • platform
    windows11-21h2_x64
  • resource
    win11-20260130-en
  • resource tags

    arch:x64arch:x86image:win11-20260130-enlocale:en-usos:windows11-21h2-x64systemwindows
  • submitted
    22/04/2026, 00:18

General

  • Target
    $PLUGINSDIR/nsArray.dll
  • Size 6KB
  • Sample260422-als7jaev9p
  • SHA256 8bc5e75bbfa5a8f10526aec2af441153b2883d6d288726ed8f7c9af12a1ee02b
  • MD5 SHA1 SHA512 SSDEEP TLSH
Score
5/10

Malware Config

Signatures

  • UPX packed file 2 IoCs

    Detects executables packed with UPX/modified UPX open source packer.

  • 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\nsArray.dll,#1
    1⤵
    • Suspicious use of WriteProcessMemory
    PID:792
    • C:\Windows\SysWOW64\rundll32.exe
      rundll32.exe C:\Users\Admin\AppData\Local\Temp\$PLUGINSDIR\nsArray.dll,#1
      2⤵
      • System Location Discovery: System Language Discovery
      PID:5044
      • C:\Windows\SysWOW64\WerFault.exe
        C:\Windows\SysWOW64\WerFault.exe -u -p 5044 -s 448
        3⤵
        • Program crash
        PID:3468
  • C:\Windows\SysWOW64\WerFault.exe
    C:\Windows\SysWOW64\WerFault.exe -pss -s 408 -p 5044 -ip 5044
    1⤵
      PID:4176

    Network

          MITRE ATT&CK Enterprise v16

          Replay Monitor

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          Downloads

          memory/5044-0-0x0000000074C30000-0x0000000074C3A000-memory.dmp

          memory/5044-3-0x0000000074C30000-0x0000000074C3A000-memory.dmp

          memory/5044-1-0x0000000000F70000-0x000000000102B000-memory.dmp