Analysis

  • max time kernel
    139s
  • max time network
    127s
  • platform
    windows11-ltsc_2024_x64
  • resource
    win11ltsc2024-20260709-en
  • resource tags

    arch:x64arch:x86image:win11ltsc2024-20260709-enlocale:en-usos:windows11-ltsc_2024-x64systemwindows
  • submitted
    27/08/2026, 07:49

General

  • Target
    2026-08-27_d3a8f822b8dc2ab42320af3e38df5138_elex_remcos_smoke-loader_stealc_stop_tofsee.exe
  • Size 1.4MB
  • Sample260827-jnt2aa1dnb
  • SHA256 2b4c20a38dbae3e92ae04a804f46bf1756f6a78c242e44c018a425ec600afc9e
  • 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 4 IoCs
  • Drops file in Program Files directory 39 IoCs
  • Drops file in Windows directory 38 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\2026-08-27_d3a8f822b8dc2ab42320af3e38df5138_elex_remcos_smoke-loader_stealc_stop_tofsee.exe
    "C:\Users\Admin\AppData\Local\Temp\2026-08-27_d3a8f822b8dc2ab42320af3e38df5138_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:1864
  • C:\Users\Admin\AppData\Local\Temp\2026-08-27_d3a8f822b8dc2ab42320af3e38df5138_elex_remcos_smoke-loader_stealc_stop_tofsee.exe
    C:\Users\Admin\AppData\Local\Temp\2026-08-27_d3a8f822b8dc2ab42320af3e38df5138_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:4224

Network

        MITRE ATT&CK Enterprise v16

        Replay Monitor

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        Downloads

        prcrplugin19.8.20071.303822.exe

        • Path C:\Program Files (x86)\Adobe\Acrobat Reader DC\Reader\plug_ins3d\prcrplugin19.8.20071.303822.exe
        • Size 1.4MB
        • SHA256 393d23c374b7c96821141f8922d77e6ac882e4475c4de0fbcfcfbae8264c1386
        • MD5 SHA1 SHA512 SSDEEP TLSH

        wowhelperccmebase.exe

        • Path C:\Program Files (x86)\Adobe\Acrobat Reader DC\Reader\wowhelperccmebase.exe
        • Size 1.4MB
        • SHA256 d4a7a202e667057d3632f4abe214ad882e515aae27813f6626122d0496cc4b83
        • MD5 SHA1 SHA512 SSDEEP TLSH

        AdobeARMAcrobat.exe

        • Path C:\Program Files (x86)\Common Files\Adobe\ARM\1.0\AdobeARMAcrobat.exe
        • Size 1.4MB
        • SHA256 74246977725aafd6a2b5720a30fb15b055f21b1d6eefaa96506e4a130bc05cbd
        • MD5 SHA1 SHA512 SSDEEP TLSH

        Startjava.exe

        • Path C:\Program Files (x86)\Common Files\Oracle\Java\javapath_target_132812\Startjava.exe
        • Size 1.4MB
        • SHA256 fad2fc88c1c88341aaf0e14b66eb57337e81385425706e785eb8dfd03c1dbcc6
        • MD5 SHA1 SHA512 SSDEEP TLSH

        msdadcOperating.exe

        • Path C:\Program Files (x86)\Common Files\System\Ole DB\msdadcOperating.exe
        • Size 1.4MB
        • SHA256 2b4c20a38dbae3e92ae04a804f46bf1756f6a78c242e44c018a425ec600afc9e
        • MD5 SHA1 SHA512 SSDEEP TLSH

        msdaremroperativo10.0.26100.1.exe

        • Path C:\Program Files (x86)\Common Files\System\msadc\es-ES\msdaremroperativo10.0.26100.1.exe
        • Size 1.4MB
        • SHA256 610b7ccec8859e17d4f48e8ffcc788e33b990ac0d589653e06f47c5517547b2f
        • MD5 SHA1 SHA512 SSDEEP TLSH

        EmbeddedEdge122.0.2365.106.exe

        • Path C:\Program Files (x86)\Microsoft\EdgeCore\122.0.2365.106\EBWebView\x86\EmbeddedEdge122.0.2365.106.exe
        • Size 1.4MB
        • SHA256 d63e4bb77ce980c7c8bbc9f4cf001f595c94c790e87fc6765e363b91793fc684
        • MD5 SHA1 SHA512 SSDEEP TLSH