Analysis

  • max time kernel
    138s
  • max time network
    126s
  • platform
    windows11-ltsc_2024_x64
  • resource
    win11ltsc2024-20260706-en
  • resource tags

    arch:x64arch:x86image:win11ltsc2024-20260706-enlocale:en-usos:windows11-ltsc_2024-x64systemwindows
  • submitted
    06/07/2026, 21:53

General

  • Target
    2026-07-06_40eb30fa0b7a387c70fed7a7380af6f4_elex_remcos_smoke-loader_stealc_stop_tofsee.exe
  • Size 902KB
  • Sample260706-1rn3wacs4s
  • SHA256 7783df55b7fafd1ba7adb1032feb15a8ef4351bed36283b1d9842705aefef1cd
  • 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 3 IoCs
  • Drops file in Program Files directory 33 IoCs
  • Drops file in Windows directory 61 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\2026-07-06_40eb30fa0b7a387c70fed7a7380af6f4_elex_remcos_smoke-loader_stealc_stop_tofsee.exe
    "C:\Users\Admin\AppData\Local\Temp\2026-07-06_40eb30fa0b7a387c70fed7a7380af6f4_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:2560
  • C:\Users\Admin\AppData\Local\Temp\2026-07-06_40eb30fa0b7a387c70fed7a7380af6f4_elex_remcos_smoke-loader_stealc_stop_tofsee.exe
    C:\Users\Admin\AppData\Local\Temp\2026-07-06_40eb30fa0b7a387c70fed7a7380af6f4_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:1280

Network

        MITRE ATT&CK Enterprise v16

        Replay Monitor

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        Downloads

        AdobeWCChromeNativeMessagingHost.exe

        • Path C:\Program Files (x86)\Adobe\Acrobat Reader DC\Reader\Browser\WCChromeExtn\AdobeWCChromeNativeMessagingHost.exe
        • Size 936KB
        • SHA256 6e3fffab192eadd25814788cf8171699788ae7ed46ecaa9738711aff61efd80b
        • MD5 SHA1 SHA512 SSDEEP TLSH

        DynamicExplorer.exe

        • Path C:\Program Files (x86)\Adobe\Acrobat Reader DC\Reader\DynamicExplorer.exe
        • Size 1.5MB
        • SHA256 334426b2481fdb9cb303d2597fe47f2fc0bdb342af8107c4b69d9128ce1e96d8
        • MD5 SHA1 SHA512 SSDEEP TLSH

        AdobeAdobe.exe

        • Path C:\Program Files (x86)\Adobe\Acrobat Reader DC\Reader\plug_ins\pi_brokers\AdobeAdobe.exe
        • Size 903KB
        • SHA256 657a052a9502ecb1dc14a41713b6ecdc85e3838011e818a3f1176150d88aec38
        • MD5 SHA1 SHA512 SSDEEP TLSH

        textReader.exe

        • Path C:\Program Files (x86)\Adobe\Acrobat Reader DC\Reader\textReader.exe
        • Size 901KB
        • SHA256 af72f744fed096032b1308df7220dbe14fdf70352d1324d4be0e246f4dd920e3
        • MD5 SHA1 SHA512 SSDEEP TLSH

        Startjavaw11.381.2.09.exe

        • Path C:\Program Files (x86)\Common Files\Oracle\Java\javapath_target_113609\Startjavaw11.381.2.09.exe
        • Size 929KB
        • SHA256 a6a0f920784a4f0e3b4aa6396e1d83513aa0b2c05813ed6f96b3c228752f233c
        • MD5 SHA1 SHA512 SSDEEP TLSH

        Windowsmsader15.exe

        • Path C:\Program Files (x86)\Common Files\System\ado\ja-JP\Windowsmsader15.exe
        • Size 903KB
        • SHA256 a0b50632794a718c1153244a0ec7942fb85552d38a7c5aed4d691199ca6f69a5
        • MD5 SHA1 SHA512 SSDEEP TLSH

        OperatingWindows.exe

        • Path C:\Program Files (x86)\Windows Defender\OperatingWindows.exe
        • Size 926KB
        • SHA256 2b4a166f48124a90c38713d6f4cdbe6604dd68bb538393db7908d54be769c92d
        • MD5 SHA1 SHA512 SSDEEP TLSH

        SystemMicrosoft.exe

        • Path C:\Windows\IME\SystemMicrosoft.exe
        • Size 902KB
        • SHA256 7783df55b7fafd1ba7adb1032feb15a8ef4351bed36283b1d9842705aefef1cd
        • MD5 SHA1 SHA512 SSDEEP TLSH

        resourcesJscript.exe

        • Path C:\Windows\Microsoft.NET\Framework64\v2.0.50727\it\resourcesJscript.exe
        • Size 979KB
        • SHA256 8928ef38e731aa578a26b1705e3483cbe466c88542c580d0b0de47830646649a
        • MD5 SHA1 SHA512 SSDEEP TLSH