Analysis

  • max time kernel
    139s
  • max time network
    125s
  • platform
    windows11-ltsc_2024_x64
  • resource
    win11ltsc2024-20260629-en
  • resource tags

    arch:x64arch:x86image:win11ltsc2024-20260629-enlocale:en-usos:windows11-ltsc_2024-x64systemwindows
  • submitted
    30/06/2026, 09:38

General

  • Target
    2026-06-29_539949013d950036620f9d47bffb66ac_elex_remcos_smoke-loader_stealc_stop_tofsee.exe
  • Size 1.2MB
  • Sample260630-ll6cmscs6q
  • SHA256 3381ead9909c555850ff78f31e0715e03e6adca123fb9d418e7e382039b9ba49
  • MD5 SHA1 SHA512 SSDEEP TLSH

Malware Config

Signatures

  • Adds Run key to start application 2 TTPs 2 IoCs
  • Checks installed software on the system 1 TTPs

    Looks up Uninstall key entries in the registry to enumerate software on the system.

  • Drops file in System32 directory 2 IoCs
  • Drops file in Program Files directory 38 IoCs
  • Drops file in Windows directory 42 IoCs
  • System Location Discovery: System Language Discovery 1 TTPs 2 IoCs

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

  • Checks processor information in registry 2 TTPs 6 IoCs

    Processor information is often read in order to detect sandboxing environments.

  • Suspicious behavior: EnumeratesProcesses 64 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\2026-06-29_539949013d950036620f9d47bffb66ac_elex_remcos_smoke-loader_stealc_stop_tofsee.exe
    "C:\Users\Admin\AppData\Local\Temp\2026-06-29_539949013d950036620f9d47bffb66ac_elex_remcos_smoke-loader_stealc_stop_tofsee.exe"
    1⤵
    • Adds Run key to start application
    • Drops file in System32 directory
    • Drops file in Program Files directory
    • Drops file in Windows directory
    • System Location Discovery: System Language Discovery
    • Checks processor information in registry
    • Suspicious behavior: EnumeratesProcesses
    PID:3172
  • C:\Users\Admin\AppData\Local\Temp\2026-06-29_539949013d950036620f9d47bffb66ac_elex_remcos_smoke-loader_stealc_stop_tofsee.exe
    C:\Users\Admin\AppData\Local\Temp\2026-06-29_539949013d950036620f9d47bffb66ac_elex_remcos_smoke-loader_stealc_stop_tofsee.exe
    1⤵
    • Drops file in System32 directory
    • System Location Discovery: System Language Discovery
    • Checks processor information in registry
    • Suspicious behavior: EnumeratesProcesses
    PID:6092

Network

        MITRE ATT&CK Enterprise v16

        Replay Monitor

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        Downloads

        AiodAiod.exe

        • Path C:\Program Files (x86)\Adobe\Acrobat Reader DC\Esl\AiodAiod.exe
        • Size 1.2MB
        • SHA256 15ec76ac8bf5ed74c935df4d564dbf87f3ab37b2c8a989665c6e9c877398f376
        • MD5 SHA1 SHA512 SSDEEP TLSH

        widevinecdmadapterdllDirectX2.1.0.461930603.exe

        • Path C:\Program Files (x86)\Adobe\Acrobat Reader DC\Reader\AcroCEF\widevinecdmadapterdllDirectX2.1.0.461930603.exe
        • Size 8.6MB
        • SHA256 9d506a88ad897800a7e390f0e5a38056d2a65c7ddc1fe2732698c7da79badcf6
        • MD5 SHA1 SHA512 SSDEEP TLSH

        NPPDF32Acrobat.exe

        • Path C:\Program Files (x86)\Adobe\Acrobat Reader DC\Reader\Browser\NPPDF32Acrobat.exe
        • Size 1.2MB
        • SHA256 d598bc818b304de35190c2be26f2050581050894e492ad745edaf5274c57993d
        • MD5 SHA1 SHA512 SSDEEP TLSH

        ExplorerLogTransport24.1.2.0.exe

        • Path C:\Program Files (x86)\Adobe\Acrobat Reader DC\Reader\ExplorerLogTransport24.1.2.0.exe
        • Size 1.2MB
        • SHA256 339671963b1c3ae6bd1605af42961d724b7947b289d913575405ea3668fe6a6a
        • MD5 SHA1 SHA512 SSDEEP TLSH

        LinguisitcHandler.exe

        • Path C:\Program Files (x86)\Adobe\Acrobat Reader DC\Reader\LinguisitcHandler.exe
        • Size 1.2MB
        • SHA256 14d22baa2ac3040044eaca57aa810ff67c5c0577034ddc14f8394728a0d06a67
        • MD5 SHA1 SHA512 SSDEEP TLSH

        ReaderManager.exe

        • Path C:\Program Files (x86)\Common Files\Adobe\ARM\1.0\ReaderManager.exe
        • Size 1.2MB
        • SHA256 ba75a2b583993cd7c862361abc46766aa4add5351b36ade9bf014aa3b79290bc
        • MD5 SHA1 SHA512 SSDEEP TLSH

        OperatingWindows.exe

        • Path C:\Program Files (x86)\Common Files\Microsoft Shared\ink\ja-JP\OperatingWindows.exe
        • Size 1.2MB
        • SHA256 adbfe715a8d7a6f474d3960df03a1688b5a2b2649b9ca7431b47bd821a43ff77
        • MD5 SHA1 SHA512 SSDEEP TLSH

        WindowsMpDetoursCopyAccelerator.exe

        • Path C:\Program Files (x86)\Windows Defender\WindowsMpDetoursCopyAccelerator.exe
        • Size 1.2MB
        • SHA256 3381ead9909c555850ff78f31e0715e03e6adca123fb9d418e7e382039b9ba49
        • MD5 SHA1 SHA512 SSDEEP TLSH

        TransactionsFramework.exe

        • Path C:\Windows\Microsoft.NET\Framework\v2.0.50727\it\TransactionsFramework.exe
        • Size 1.3MB
        • SHA256 a262a16bc17d39dc5f06904e0c7d88b22f09ba1204bafa9862b4e0af9c474414
        • MD5 SHA1 SHA512 SSDEEP TLSH

        MSBuildMicrosoft.exe

        • Path C:\Windows\Microsoft.NET\assembly\GAC_64\MSBuild\v4.0_4.0.0.0__b03f5f7f11d50a3a\MSBuildMicrosoft.exe
        • Size 1.2MB
        • SHA256 10f8668adcdfa4942ce09711cc84aa106d7fe31b22ad5b399405cacb7282569d
        • MD5 SHA1 SHA512 SSDEEP TLSH