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
    09/07/2026, 07:58

General

  • Target
    2026-07-09_ceba4f5a83cfadf6e18a2fc95f5f92c3_elex_remcos_smoke-loader_stealc_stop_tofsee.exe
  • Size 989KB
  • Sample260709-jtw3tsft21
  • SHA256 bee71f815ff19f0b04315218255b1513dfdca31ce3922fd89cd7be971559b5c7
  • 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 24 IoCs
  • Drops file in Windows directory 47 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 50 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\2026-07-09_ceba4f5a83cfadf6e18a2fc95f5f92c3_elex_remcos_smoke-loader_stealc_stop_tofsee.exe
    "C:\Users\Admin\AppData\Local\Temp\2026-07-09_ceba4f5a83cfadf6e18a2fc95f5f92c3_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:1052
  • C:\Users\Admin\AppData\Local\Temp\2026-07-09_ceba4f5a83cfadf6e18a2fc95f5f92c3_elex_remcos_smoke-loader_stealc_stop_tofsee.exe
    C:\Users\Admin\AppData\Local\Temp\2026-07-09_ceba4f5a83cfadf6e18a2fc95f5f92c3_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:4396

Network

        MITRE ATT&CK Enterprise v16

        Replay Monitor

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        Downloads

        ANGLEInternational.exe

        • Path C:\Program Files (x86)\Adobe\Acrobat Reader DC\Reader\AcroCEF\ANGLEInternational.exe
        • Size 8.4MB
        • SHA256 095dfed5f12f18959514e15d04f2e83e2ab0a28ad6093409dabf683e3266a545
        • MD5 SHA1 SHA512 SSDEEP TLSH

        extractorLogSession.exe

        • Path C:\Program Files (x86)\Adobe\Acrobat Reader DC\Reader\extractorLogSession.exe
        • Size 1.6MB
        • SHA256 338800f3f446c7c3e28a79017c02d1372cee676026ed87727dd0c104d392ac31
        • MD5 SHA1 SHA512 SSDEEP TLSH

        AdobeCheckers.exe

        • Path C:\Program Files (x86)\Adobe\Acrobat Reader DC\Reader\plug_ins\AdobeCheckers.exe
        • Size 990KB
        • SHA256 c3bd4427b24cc4e8bb4d87f27f0bcd2a50bd5008047da1d9e3a61cfeb243cb9a
        • MD5 SHA1 SHA512 SSDEEP TLSH

        Systemmsinfo10.0.26100.1591.160101.0800.exe

        • Path C:\Program Files (x86)\Common Files\Microsoft Shared\MSInfo\Systemmsinfo10.0.26100.1591.160101.0800.exe
        • Size 989KB
        • SHA256 bee71f815ff19f0b04315218255b1513dfdca31ce3922fd89cd7be971559b5c7
        • MD5 SHA1 SHA512 SSDEEP TLSH

        MicrosoftStudio.exe

        • Path C:\Program Files (x86)\Common Files\Microsoft Shared\VSTO\MicrosoftStudio.exe
        • Size 982KB
        • SHA256 1ab20e1430a2fc503289fea0c26355ea29a2384636b10c4db3d8617b556ac4c2
        • MD5 SHA1 SHA512 SSDEEP TLSH

        widevinecdmwidevinecdm.exe

        • Path C:\Program Files (x86)\Microsoft\EdgeCore\139.0.3405.125\WidevineCdm\_platform_specific\win_x64\widevinecdmwidevinecdm.exe
        • Size 990KB
        • SHA256 a9e8741c271466f1097036fc678cfe4840af1559a31ca121dfc0a8d2e62634a7
        • MD5 SHA1 SHA512 SSDEEP TLSH

        StudioSTLCLR.exe

        • Path C:\Windows\Microsoft.NET\Framework64\v3.5\StudioSTLCLR.exe
        • Size 978KB
        • SHA256 ece0f3b62d637cc0e62ba01f35ee98eefd9ce9d057f7b2a3c908d3f51c6e2627
        • MD5 SHA1 SHA512 SSDEEP TLSH

        FrameworkStudio.exe

        • Path C:\Windows\Microsoft.NET\Framework\v2.0.50727\FrameworkStudio.exe
        • Size 1.3MB
        • SHA256 51f7f786ab986738b2bdcffc12d42addbd0b4a4240e3d169edcd35a957d07377
        • MD5 SHA1 SHA512 SSDEEP TLSH