Analysis

  • max time kernel
    127s
  • max time network
    126s
  • platform
    windows11-ltsc_2024_x64
  • resource
    win11ltsc2024-20260911-en
  • resource tags

    arch:x64arch:x86image:win11ltsc2024-20260911-enlocale:en-usos:windows11-ltsc_2024-x64systemwindows
  • submitted
    30/09/2026, 11:15

General

  • Target
    2026-09-30_595976d203caab6526b4390d761a056e_elex_remcos_smoke-loader_stealc_stop_tofsee.exe
  • Size 3.6MB
  • Sample260930-nctctssfle
  • SHA256 742592f08b68a836d8312294b5bfc063a53762d4d663104a9f08b1f52b6ba1bf
  • 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 5 IoCs
  • Drops file in Program Files directory 23 IoCs
  • Drops file in Windows directory 64 IoCs
  • Reads the TCP/IP host and domain name from the registry 1 TTPs 4 IoCs

    The configured hostname and DNS domain identify the machine and are commonly collected to profile a host before it reports in.

  • 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.

  • Checks processor information in registry 2 TTPs 6 IoCs

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

  • Suspicious behavior: EnumeratesProcesses 50 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\2026-09-30_595976d203caab6526b4390d761a056e_elex_remcos_smoke-loader_stealc_stop_tofsee.exe
    "C:\Users\Admin\AppData\Local\Temp\2026-09-30_595976d203caab6526b4390d761a056e_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
    • Reads the TCP/IP host and domain name from the registry
    • System Location Discovery: System Language Discovery
    • Checks processor information in registry
    • Suspicious behavior: EnumeratesProcesses
    PID:1896
  • C:\Users\Admin\AppData\Local\Temp\2026-09-30_595976d203caab6526b4390d761a056e_elex_remcos_smoke-loader_stealc_stop_tofsee.exe
    C:\Users\Admin\AppData\Local\Temp\2026-09-30_595976d203caab6526b4390d761a056e_elex_remcos_smoke-loader_stealc_stop_tofsee.exe
    1⤵
    • Drops file in System32 directory
    • Reads the TCP/IP host and domain name from the registry
    • Checks processor information in registry
    • Suspicious behavior: EnumeratesProcesses
    PID:3732

Network

        MITRE ATT&CK Enterprise v16

        Replay Monitor

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        Downloads

        Linkccmeasym4.1.2.0.exe

        • Path C:\Program Files (x86)\Adobe\Acrobat Reader DC\Reader\Linkccmeasym4.1.2.0.exe
        • Size 2.9MB
        • SHA256 2bc6b21dcd5d74f47ef3cd10766944d2d5658037f078ebc3435fc03311e75ae9
        • MD5 SHA1 SHA512 SSDEEP TLSH

        adoberfpLogSession19.10.20064.310990.exe

        • Path C:\Program Files (x86)\Adobe\Acrobat Reader DC\Reader\adoberfpLogSession19.10.20064.310990.exe
        • Size 3.4MB
        • SHA256 e0d83531c0b7c1ee59d57869de4daeb67d998121e664f4a372539b023bd37b48
        • MD5 SHA1 SHA512 SSDEEP TLSH

        Systemsqlxmlx.exe

        • Path C:\Program Files (x86)\Common Files\System\Ole DB\es-ES\Systemsqlxmlx.exe
        • Size 3.6MB
        • SHA256 12c5aeb43cb92c3be91d09056aa1a4fffad8fa72ebcdb3f0c66d4084b656ba92
        • MD5 SHA1 SHA512 SSDEEP TLSH

        UpdaterGoogle.exe

        • Path C:\Program Files (x86)\Google\GoogleUpdater\141.0.7340.0\UpdaterGoogle.exe
        • Size 3.7MB
        • SHA256 b81b65361c70180fd2ae2a384a7f530c39a03fea7db00799c2f776d49d6bb413
        • MD5 SHA1 SHA512 SSDEEP TLSH

        FrameworkMicrosoft.exe

        • Path C:\Windows\assembly\GAC_MSIL\Microsoft.Build.Engine.Resources\2.0.0.0_de_b03f5f7f11d50a3a\FrameworkMicrosoft.exe
        • Size 3.6MB
        • SHA256 fd1e53f0b613e7d70765be870c547636102539d177f4e754ef07cea12cc9eba4
        • MD5 SHA1 SHA512 SSDEEP TLSH