Analysis

  • max time kernel
    149s
  • max time network
    157s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20260513-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20260513-enlocale:en-usos:windows10-2004-x64systemwindows
  • submitted
    22/07/2026, 15:07

General

  • Target
    codex.dll
  • Size 103KB
  • Sample260722-shlbmaxdpg
  • SHA256 382a95940910172335a3f6356671e3cf6e514ec95b98faf5d943b23870164afc
  • 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 behavior: EnumeratesProcesses 12 IoCs
  • Suspicious use of WriteProcessMemory 1 IoCs

Processes

  • C:\Windows\system32\rundll32.exe
    rundll32.exe C:\Users\Admin\AppData\Local\Temp\codex.dll,#1
    1⤵
    • Suspicious use of WriteProcessMemory
    PID:3292
    • C:\Windows\SysWOW64\rundll32.exe
      rundll32.exe C:\Users\Admin\AppData\Local\Temp\codex.dll,#1
      2⤵
      • System Location Discovery: System Language Discovery
      • Suspicious behavior: EnumeratesProcesses
      PID:4080
      • C:\Windows\SysWOW64\WerFault.exe
        C:\Windows\SysWOW64\WerFault.exe -u -p 4080 -s 768
        3⤵
        • Program crash
        PID:4256
  • C:\Windows\SysWOW64\WerFault.exe
    C:\Windows\SysWOW64\WerFault.exe -pss -s 412 -p 4080 -ip 4080
    1⤵
      PID:1336

    Network

          MITRE ATT&CK Enterprise v16

          Replay Monitor

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          Downloads

          memory/4080-0-0x0000000075870000-0x00000000758BC000-memory.dmp

          memory/4080-1-0x0000000075640000-0x00000000756F6000-memory.dmp

          memory/4080-4-0x0000000077E52000-0x0000000077E53000-memory.dmp

          memory/4080-5-0x0000000077E52000-0x0000000077E53000-memory.dmp

          memory/4080-6-0x0000000077E52000-0x0000000077E53000-memory.dmp

          memory/4080-7-0x0000000001290000-0x0000000001291000-memory.dmp

          memory/4080-8-0x0000000075870000-0x00000000758BC000-memory.dmp

          memory/4080-10-0x0000000075640000-0x00000000756F6000-memory.dmp