Analysis

  • max time kernel
    150s
  • max time network
    136s
  • platform
    windows11-ltsc_2024_x64
  • resource
    win11ltsc2024-20260709-en
  • resource tags

    arch:x64arch:x86image:win11ltsc2024-20260709-enlocale:en-usos:windows11-ltsc_2024-x64systemwindows
  • submitted
    24/08/2026, 00:12

General

  • Target
    kedadecoder/kedadecodersetup.exe
  • Size 2.1MB
  • Sample260824-ag6basbf36
  • SHA256 bfcc8f71ddedb7f0b555a1492c8b1699c95aa892d69424595e07d5b3d4689783
  • MD5 SHA1 SHA512 SSDEEP TLSH
Score
7/10

Malware Config

Signatures

  • Executes dropped EXE 1 IoCs
  • Loads dropped DLL 1 IoCs
  • Drops file in System32 directory 11 IoCs
  • Drops file in Windows directory 48 IoCs
  • Enumerates physical storage devices 1 TTPs

    Attempts to interact with connected storage/optical drive(s).

  • Executes a command shell one-liner 1 TTPs 1 IoCs

    Execution of a cmd.exe one-liner (/c "close" or /k "keep") is a common script/loader stage.

  • System Location Discovery: System Language Discovery 1 TTPs 4 IoCs

    Attempt gather information about the system language of a victim in order to infer the geographical location of that host.

  • Modifies registry class 64 IoCs
  • Suspicious use of SetWindowsHookEx 1 IoCs
  • Suspicious use of WriteProcessMemory 3 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\kedadecoder\kedadecodersetup.exe
    "C:\Users\Admin\AppData\Local\Temp\kedadecoder\kedadecodersetup.exe"
    1⤵
    • Drops file in Windows directory
    • System Location Discovery: System Language Discovery
    • Suspicious use of WriteProcessMemory
    PID:3312
    • C:\windows\kedadecoder\decoder_dll_setup.exe
      "C:\windows\kedadecoder\decoder_dll_setup.exe"
      2⤵
      • Executes dropped EXE
      • System Location Discovery: System Language Discovery
      • Suspicious use of SetWindowsHookEx
      • Suspicious use of WriteProcessMemory
      PID:2544
      • C:\Windows\SysWOW64\cmd.exe
        C:\Windows\system32\cmd.exe /c regsvr32 "C:\windows\kedadecoder\\setup.ocx"
        3⤵
        • Executes a command shell one-liner
        • System Location Discovery: System Language Discovery
        • Suspicious use of WriteProcessMemory
        PID:364
        • C:\Windows\SysWOW64\regsvr32.exe
          regsvr32 "C:\windows\kedadecoder\\setup.ocx"
          4⤵
          • Loads dropped DLL
          • Drops file in System32 directory
          • System Location Discovery: System Language Discovery
          • Modifies registry class
          PID:4828

Network

        MITRE ATT&CK Enterprise v16

        Replay Monitor

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        Downloads

        decoder_dll_setup.exe

        • Path C:\Windows\kedadecoder\decoder_dll_setup.exe
        • Size 20KB
        • SHA256 89dac0101dbe1b5e007368b70cf3f6b0aa1e4bc2d89f85a13bd74fab9d27e953
        • MD5 SHA1 SHA512 SSDEEP TLSH

        kdadpcm.acm

        • Path C:\windows\kedadecoder\kdadpcm.acm
        • Size 100KB
        • SHA256 31822500bb69552a83c9f1a2aff3e7e4d583d5432d6eceb03a50382c975c4825
        • MD5 SHA1 SHA512 SSDEEP TLSH

        kdg711a.acm

        • Path C:\windows\kedadecoder\kdg711a.acm
        • Size 88KB
        • SHA256 eeaead710f2f172643f5e7d269d80df1f836bfa9cd3e48277df7e0bcbe15ab32
        • MD5 SHA1 SHA512 SSDEEP TLSH

        kdg711u.acm

        • Path C:\windows\kedadecoder\kdg711u.acm
        • Size 88KB
        • SHA256 7fdfc8159ec0ab70d9b7c77291fcbbe2ea1fa8137b9322957c0399681fa0b159
        • MD5 SHA1 SHA512 SSDEEP TLSH

        kdg7221.acm

        • Path C:\windows\kedadecoder\kdg7221.acm
        • Size 112KB
        • SHA256 20808ac0df62854fc0c70cd2041c8eda20fa2bf85e6b0e51317f42e1ceaf0173
        • MD5 SHA1 SHA512 SSDEEP TLSH

        kdh4.dll

        • Path C:\windows\kedadecoder\kdh4.dll
        • Size 1.0MB
        • SHA256 12485361b23aaed9a8b0432b00e6bbb12149c911b7b27c7a587ceed832e5ab6d
        • MD5 SHA1 SHA512 SSDEEP TLSH

        kdimg.dll

        • Path C:\windows\kedadecoder\kdimg.dll
        • Size 1.5MB
        • SHA256 4d19f23289820c911cd61eed2ff3fa00bba17b0c6482994ea4082e33258dad07
        • MD5 SHA1 SHA512 SSDEEP TLSH

        kdm4.dll

        • Path C:\windows\kedadecoder\kdm4.dll
        • Size 452KB
        • SHA256 87f757ea17f1f8fecdade7d41e1d728404cebd941bce8c4592dffd70264c8299
        • MD5 SHA1 SHA512 SSDEEP TLSH

        kdmjpg.dll

        • Path C:\windows\kedadecoder\kdmjpg.dll
        • Size 160KB
        • SHA256 f85a95377a97884284705a832de0336a9f3d98dd498f4c673a2a0d970e8a8cbb
        • MD5 SHA1 SHA512 SSDEEP TLSH

        kdvyuv.dll

        • Path C:\windows\kedadecoder\kdvyuv.dll
        • Size 32KB
        • SHA256 ebb529a79fe179285ec9ca465e4ee71757da474e2a20e162b629fc0f53feb23c
        • MD5 SHA1 SHA512 SSDEEP TLSH

        kdvyuv8.dll

        • Path C:\windows\kedadecoder\kdvyuv8.dll
        • Size 65KB
        • SHA256 8ae1e80143efac140b79b1ccafb6f00200913a524c24710fe9b4cdeda079f3d5
        • MD5 SHA1 SHA512 SSDEEP TLSH

        kdvyv12.dll

        • Path C:\windows\kedadecoder\kdvyv12.dll
        • Size 42KB
        • SHA256 2863d88387c221aefd57009c6a74a479f2fe98005ed10df8309a5187682d952e
        • MD5 SHA1 SHA512 SSDEEP TLSH

        setup.ocx

        • Path C:\windows\kedadecoder\setup.ocx
        • Size 36KB
        • SHA256 3a835206094de3361ac2d6e779a5dd6da1b6e7259113aaa9107482ef23a63175
        • MD5 SHA1 SHA512 SSDEEP TLSH