Analysis

  • max time kernel
    139s
  • max time network
    125s
  • platform
    windows11-ltsc_2024_x64
  • resource
    win11ltsc2024-20260911-en
  • resource tags

    arch:x64arch:x86image:win11ltsc2024-20260911-enlocale:en-usos:windows11-ltsc_2024-x64systemwindows
  • submitted
    17/10/2026, 04:32

General

  • Target
    2026-10-16_e3d616b2e887efc495bfad0371e4ba78_elex_remcos_smoke-loader_stealc_stop_tofsee.exe
  • Size 1.1MB
  • Sample261017-e6e8mawzes
  • SHA256 1e7e6637f6a4e2b72259011965aa465dcffd061a36effe9d60adabcd4832bf4b
  • 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 29 IoCs
  • Drops file in Windows directory 50 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 62 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\2026-10-16_e3d616b2e887efc495bfad0371e4ba78_elex_remcos_smoke-loader_stealc_stop_tofsee.exe
    "C:\Users\Admin\AppData\Local\Temp\2026-10-16_e3d616b2e887efc495bfad0371e4ba78_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:4264
  • C:\Users\Admin\AppData\Local\Temp\2026-10-16_e3d616b2e887efc495bfad0371e4ba78_elex_remcos_smoke-loader_stealc_stop_tofsee.exe
    C:\Users\Admin\AppData\Local\Temp\2026-10-16_e3d616b2e887efc495bfad0371e4ba78_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:5820

Network

        MITRE ATT&CK Enterprise v16

        Replay Monitor

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        Downloads

        CreateAdobe19.10.20064.310990.exe

        • Path C:\Program Files (x86)\Adobe\Acrobat Reader DC\Reader\Browser\WCChromeExtn\CreateAdobe19.10.20064.310990.exe
        • Size 1.1MB
        • SHA256 ce02f7e7e0d0d73648689a55d2b36c264b373090547e00c5a15f218b68f9baa4
        • MD5 SHA1 SHA512 SSDEEP TLSH

        filesUnicode.exe

        • Path C:\Program Files (x86)\Adobe\Acrobat Reader DC\Reader\filesUnicode.exe
        • Size 1.1MB
        • SHA256 1108e48f012c91854cd420948265f097b7ce98faf262f0630aad33df080b2711
        • MD5 SHA1 SHA512 SSDEEP TLSH

        ExtensibilityStudio.exe

        • Path C:\Program Files (x86)\Common Files\Microsoft Shared\MSEnv\PublicAssemblies\ExtensibilityStudio.exe
        • Size 1.1MB
        • SHA256 e6edcf4a007223e2312a4d31459ff75ba5dcfa646f05e94d044b68a455c071d7
        • MD5 SHA1 SHA512 SSDEEP TLSH

        msinfomsinfo10.0.26100.1591.exe

        • Path C:\Program Files (x86)\Common Files\Microsoft Shared\MSInfo\msinfomsinfo10.0.26100.1591.exe
        • Size 1.1MB
        • SHA256 1e7e6637f6a4e2b72259011965aa465dcffd061a36effe9d60adabcd4832bf4b
        • MD5 SHA1 SHA512 SSDEEP TLSH

        SystemWindows10.0.26100.1.exe

        • Path C:\Program Files (x86)\Common Files\System\Ole DB\fr-FR\SystemWindows10.0.26100.1.exe
        • Size 1.1MB
        • SHA256 0de53d1a0ca06c6238aafda9939ea683cb0cfbb6e29346c804497904d1cd16bf
        • MD5 SHA1 SHA512 SSDEEP TLSH

        Systemresources.exe

        • Path C:\Windows\Microsoft.NET\Framework64\v2.0.50727\fr\Systemresources.exe
        • Size 1.1MB
        • SHA256 54572be9c0728c47ae1562d5b196e1255667039457e52e50df210f19ef80e110
        • MD5 SHA1 SHA512 SSDEEP TLSH

        Microsoftmscormmc2.0.50727.9157.exe

        • Path C:\Windows\Microsoft.NET\Framework\v1.0.3705\Microsoftmscormmc2.0.50727.9157.exe
        • Size 1.1MB
        • SHA256 7684c2b304fd0dbca210017226bdc51c3008de8f27be7a1d2cc21775eaca2422
        • MD5 SHA1 SHA512 SSDEEP TLSH

        Microsoftresources.exe

        • Path C:\Windows\Microsoft.NET\Framework\v2.0.50727\DE\Microsoftresources.exe
        • Size 1.1MB
        • SHA256 96c567f2fabe811c78cf5e8df0edeb6fb515735dcc6a1c5df702ade4fbb7702b
        • MD5 SHA1 SHA512 SSDEEP TLSH