Analysis

  • max time kernel
    128s
  • max time network
    127s
  • platform
    windows11-ltsc_2024_x64
  • resource
    win11ltsc2024-20260911-en
  • resource tags

    arch:x64arch:x86image:win11ltsc2024-20260911-enlocale:en-usos:windows11-ltsc_2024-x64systemwindows
  • submitted
    25/09/2026, 18:03

General

  • Target
    2026-09-25_e7f3c534ff918523e7a271e1bf0f0619_elex_remcos_smoke-loader_stealc_stop_tofsee.exe
  • Size 1.2MB
  • Sample260925-wm93bsshjf
  • SHA256 f5beaf30a7dc7812705baf1bb091563b9b1a5558b9797f10e04f0cbc84d9b267
  • 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 2 IoCs
  • Drops file in Program Files directory 37 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 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 56 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\2026-09-25_e7f3c534ff918523e7a271e1bf0f0619_elex_remcos_smoke-loader_stealc_stop_tofsee.exe
    "C:\Users\Admin\AppData\Local\Temp\2026-09-25_e7f3c534ff918523e7a271e1bf0f0619_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:248
  • C:\Users\Admin\AppData\Local\Temp\2026-09-25_e7f3c534ff918523e7a271e1bf0f0619_elex_remcos_smoke-loader_stealc_stop_tofsee.exe
    C:\Users\Admin\AppData\Local\Temp\2026-09-25_e7f3c534ff918523e7a271e1bf0f0619_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
    • System Location Discovery: System Language Discovery
    • Checks processor information in registry
    • Suspicious behavior: EnumeratesProcesses
    PID:3144

Network

        MITRE ATT&CK Enterprise v16

        Replay Monitor

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        Downloads

        chromeelfwidevinecdmadapter.exe

        • Path C:\Program Files (x86)\Adobe\Acrobat Reader DC\Reader\AcroCEF\chromeelfwidevinecdmadapter.exe
        • Size 8.6MB
        • SHA256 be114532fd8c62850be3890a80f4fa96ac9a53087f8aae75d92c0c18606fe56f
        • MD5 SHA1 SHA512 SSDEEP TLSH

        AdobeHelpAcroSup64.exe

        • Path C:\Program Files (x86)\Adobe\Acrobat Reader DC\Reader\AdobeHelpAcroSup64.exe
        • Size 1.2MB
        • SHA256 b01c5e0f8116026c25d7999671f43ac5149761f2824ab4fd89ce539fc856adda
        • MD5 SHA1 SHA512 SSDEEP TLSH

        AdobeAdobe.exe

        • Path C:\Program Files (x86)\Adobe\Acrobat Reader DC\Reader\plug_ins\pi_brokers\AdobeAdobe.exe
        • Size 1.2MB
        • SHA256 58982d5bff5da711376e195fca6e5f382a64b728149e1bfb2094922923da6bd0
        • MD5 SHA1 SHA512 SSDEEP TLSH

        ReaderAcrobat.exe

        • Path C:\Program Files (x86)\Common Files\Adobe\ARM\1.0\ReaderAcrobat.exe
        • Size 1.2MB
        • SHA256 a231b0d3aba8be70c5402f46a85419a65fb3f5bc88c4e1107171b03917b7be3a
        • MD5 SHA1 SHA512 SSDEEP TLSH

        javawjavaw.exe

        • Path C:\Program Files (x86)\Common Files\Oracle\Java\javapath_target_122484\javawjavaw.exe
        • Size 1.2MB
        • SHA256 c7bf90e8b4fe97cd80c20f1bf5e7bf013058e96a04839dac80bbe39733dcfe3d
        • MD5 SHA1 SHA512 SSDEEP TLSH

        EmbeddedClient.exe

        • Path C:\Program Files (x86)\Microsoft\EdgeWebView\Application\122.0.2365.106\EBWebView\x86\EmbeddedClient.exe
        • Size 1.2MB
        • SHA256 733db6aef5615ef5b8ac6712207e1ff0f1274b312a8950f193b5fe14af8e0b30
        • MD5 SHA1 SHA512 SSDEEP TLSH