Analysis

  • max time kernel
    120s
  • max time network
    153s
  • platform
    windows11-ltsc_2024_x64
  • resource
    win11ltsc2024-20260709-en
  • resource tags

    arch:x64arch:x86image:win11ltsc2024-20260709-enlocale:en-usos:windows11-ltsc_2024-x64systemwindows
  • submitted
    01/08/2026, 16:28

General

  • Target
    2026-08-01_84f375c956b56c20b9cbaedd3509cfbb_elex_remcos_smoke-loader_stealc_stop_tofsee.exe
  • Size 1.3MB
  • Sample260801-ty1xpade73
  • SHA256 7480f043ad132ea8365b91cf9cde028d1b5b73dd8ab9251c58fb9fded7ed58be
  • 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 6 IoCs
  • Drops file in Program Files directory 43 IoCs
  • Drops file in Windows directory 37 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\2026-08-01_84f375c956b56c20b9cbaedd3509cfbb_elex_remcos_smoke-loader_stealc_stop_tofsee.exe
    "C:\Users\Admin\AppData\Local\Temp\2026-08-01_84f375c956b56c20b9cbaedd3509cfbb_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:4528
  • C:\Users\Admin\AppData\Local\Temp\2026-08-01_84f375c956b56c20b9cbaedd3509cfbb_elex_remcos_smoke-loader_stealc_stop_tofsee.exe
    C:\Users\Admin\AppData\Local\Temp\2026-08-01_84f375c956b56c20b9cbaedd3509cfbb_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:2900

Network

        MITRE ATT&CK Enterprise v16

        Replay Monitor

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        Downloads

        AXSLEReader.exe

        • Path C:\Program Files (x86)\Adobe\Acrobat Reader DC\Reader\AXSLEReader.exe
        • Size 1.3MB
        • SHA256 7925879ece2385c052404ff55ec7999f29a2e6720dcb9bd35fe6539000765d82
        • MD5 SHA1 SHA512 SSDEEP TLSH

        AcroRd32ViewerPS.exe

        • Path C:\Program Files (x86)\Adobe\Acrobat Reader DC\Reader\AcroRd32ViewerPS.exe
        • Size 1.3MB
        • SHA256 03ff1895ae9def158d32478e9cb90e2d27a71cef384c682f050db982bbfd8ff9
        • MD5 SHA1 SHA512 SSDEEP TLSH

        AdobeAdobeARM.exe

        • Path C:\Program Files (x86)\Common Files\Adobe\ARM\1.0\AdobeAdobeARM.exe
        • Size 1.3MB
        • SHA256 4903a612c77887ea86dbd93ae47d516331eccb84bfcbb1562a2d36018fd529ce
        • MD5 SHA1 SHA512 SSDEEP TLSH

        UpdaterJava.exe

        • Path C:\Program Files (x86)\Common Files\Java\Java Update\UpdaterJava.exe
        • Size 1.3MB
        • SHA256 bb16e43808080175019db07a1f5bc70d438f766f786c9a9f0b85656322b9bb6a
        • MD5 SHA1 SHA512 SSDEEP TLSH

        setupexeInstaller.exe

        • Path C:\Program Files (x86)\Microsoft\EdgeCore\122.0.2365.106\Installer\setupexeInstaller.exe
        • Size 1.5MB
        • SHA256 1d8d368c4828abea475bae99cb7be4c0947a51b5c6ffe606d5fad719da022c91
        • MD5 SHA1 SHA512 SSDEEP TLSH

        widevinecdmDecryption.exe

        • Path C:\Program Files (x86)\Microsoft\Edge\Application\139.0.3405.125\WidevineCdm\_platform_specific\win_x64\widevinecdmDecryption.exe
        • Size 1.3MB
        • SHA256 a9063611204418c92ea322c4c1e356c23653cd796c90d6a5c3074761937dd73c
        • MD5 SHA1 SHA512 SSDEEP TLSH

        ClientFramework.exe

        • Path C:\Program Files (x86)\Reference Assemblies\Microsoft\Framework\v3.5\it\ClientFramework.exe
        • Size 1.3MB
        • SHA256 e2c467c78b557554fc4d9ed3373b8aa1a21d26d686620a9534f9c7780ab33bb4
        • MD5 SHA1 SHA512 SSDEEP TLSH

        EngineUNKNOWNFILE.exe

        • Path C:\Windows\Microsoft.NET\Framework64\v4.0.30319\EngineUNKNOWNFILE.exe
        • Size 1.2MB
        • SHA256 17c656cde3f12c60e78eca3549a44b87b4daa14a624dc97d96c3263edd52ce90
        • MD5 SHA1 SHA512 SSDEEP TLSH