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
    03/06/2026, 12:17

General

  • Target
    avdevice-57.dll
  • Size 131KB
  • Sample260603-pgalysfy7l
  • SHA256 09e5c1b1d9609727dcd0d5597b4182bd69898a2147df26d7127e35e2b1b932aa
  • 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\avdevice-57.dll,#1
    1⤵
    • Suspicious use of WriteProcessMemory
    PID:3488
    • C:\Windows\SysWOW64\rundll32.exe
      rundll32.exe C:\Users\Admin\AppData\Local\Temp\avdevice-57.dll,#1
      2⤵
      • System Location Discovery: System Language Discovery
      PID:3380
      • C:\Windows\SysWOW64\WerFault.exe
        C:\Windows\SysWOW64\WerFault.exe -u -p 3380 -s 684
        3⤵
        • Program crash
        PID:1856
  • C:\Windows\SysWOW64\WerFault.exe
    C:\Windows\SysWOW64\WerFault.exe -pss -s 408 -p 3380 -ip 3380
    1⤵
      PID:2100

    Network

          MITRE ATT&CK Enterprise v16

          Replay Monitor

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          Downloads

          memory/3380-4-0x0000000074EC0000-0x000000007502A000-memory.dmp

          memory/3380-7-0x0000000063080000-0x000000006309E000-memory.dmp

          memory/3380-10-0x0000000073AE0000-0x0000000073B04000-memory.dmp

          memory/3380-9-0x0000000066200000-0x000000006630A000-memory.dmp

          memory/3380-8-0x0000000073B10000-0x0000000073B89000-memory.dmp

          memory/3380-5-0x0000000064B40000-0x0000000064B57000-memory.dmp

          memory/3380-6-0x0000000073C30000-0x0000000074E57000-memory.dmp

          memory/3380-3-0x0000000075030000-0x0000000075098000-memory.dmp

          memory/3380-2-0x00000000750A0000-0x00000000750E4000-memory.dmp

          memory/3380-1-0x000000006EB40000-0x000000006EB65000-memory.dmp

          memory/3380-0-0x0000000075110000-0x0000000075138000-memory.dmp