Analysis

  • max time kernel
    122s
  • max time network
    140s
  • platform
    windows11-ltsc_2024_x64
  • resource
    win11ltsc2024-20260629-en
  • resource tags

    arch:x64arch:x86image:win11ltsc2024-20260629-enlocale:en-usos:windows11-ltsc_2024-x64systemwindows
  • submitted
    04/07/2026, 04:18

General

  • Target
    2026-07-04_7e31eea7f9f00f28b04fab73ae32ef18_elex_glassworm_remcos_smoke-loader_stealc_stop_tofsee.exe
  • Size 3.2MB
  • Sample260704-exdnfafs2n
  • SHA256 f1c7e83c5d37fadfb5d54f454833da246dd363bcdb56b87be807a4339a2f84b7
  • MD5 SHA1 SHA512 SSDEEP TLSH

Malware Config

Signatures

  • Boot or Logon Autostart Execution: Active Setup 2 TTPs 1 IoCs

    Adversaries may achieve persistence by adding a Registry key to the Active Setup of the local machine.

  • 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.

  • Enumerates connected drives 3 TTPs 2 IoCs

    Attempts to read the root path of hard drives other than the default C: drive.

  • Drops file in System32 directory 4 IoCs
  • Drops file in Program Files directory 39 IoCs
  • Drops file in Windows directory 64 IoCs
  • 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 SCSI registry key(s) 3 TTPs 62 IoCs

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

  • Checks processor information in registry 2 TTPs 6 IoCs

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

  • Modifies Internet Explorer settings 1 TTPs 1 IoCs
  • Modifies registry class 38 IoCs
  • Suspicious behavior: EnumeratesProcesses 64 IoCs
  • Suspicious use of AdjustPrivilegeToken 28 IoCs
  • Suspicious use of FindShellTrayWindow 52 IoCs
  • Suspicious use of SendNotifyMessage 43 IoCs
  • Suspicious use of SetWindowsHookEx 3 IoCs
  • Suspicious use of WriteProcessMemory 1 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\2026-07-04_7e31eea7f9f00f28b04fab73ae32ef18_elex_glassworm_remcos_smoke-loader_stealc_stop_tofsee.exe
    "C:\Users\Admin\AppData\Local\Temp\2026-07-04_7e31eea7f9f00f28b04fab73ae32ef18_elex_glassworm_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:1780
  • C:\Users\Admin\AppData\Local\Temp\2026-07-04_7e31eea7f9f00f28b04fab73ae32ef18_elex_glassworm_remcos_smoke-loader_stealc_stop_tofsee.exe
    C:\Users\Admin\AppData\Local\Temp\2026-07-04_7e31eea7f9f00f28b04fab73ae32ef18_elex_glassworm_remcos_smoke-loader_stealc_stop_tofsee.exe
    1⤵
    • Drops file in System32 directory
    • Checks processor information in registry
    • Suspicious behavior: EnumeratesProcesses
    PID:3988
  • C:\Windows\system32\sihost.exe
    sihost.exe
    1⤵
    • Suspicious use of FindShellTrayWindow
    • Suspicious use of WriteProcessMemory
    PID:1828
    • C:\Windows\explorer.exe
      explorer.exe /LOADSAVEDWINDOWS
      2⤵
      • Boot or Logon Autostart Execution: Active Setup
      • Enumerates connected drives
      • Checks SCSI registry key(s)
      • Modifies Internet Explorer settings
      • Modifies registry class
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      • Suspicious use of FindShellTrayWindow
      • Suspicious use of SendNotifyMessage
      • Suspicious use of SetWindowsHookEx
      PID:4536
  • C:\Windows\SystemApps\Microsoft.Windows.StartMenuExperienceHost_cw5n1h2txyewy\StartMenuExperienceHost.exe
    "C:\Windows\SystemApps\Microsoft.Windows.StartMenuExperienceHost_cw5n1h2txyewy\StartMenuExperienceHost.exe" -ServerName:App.AppXywbrabmsek0gm3tkwpr5kwzbs55tkqay.mca
    1⤵
    • Modifies registry class
    • Suspicious use of SetWindowsHookEx
    PID:4968
  • C:\Windows\SystemApps\MicrosoftWindows.Client.CBS_cw5n1h2txyewy\SearchHost.exe
    "C:\Windows\SystemApps\MicrosoftWindows.Client.CBS_cw5n1h2txyewy\SearchHost.exe" -ServerName:CortanaUI.AppXstmwaab17q5s3y22tp6apqz7a45vwv65.mca
    1⤵
    • Modifies registry class
    • Suspicious use of SetWindowsHookEx
    PID:2976

Network

        MITRE ATT&CK Enterprise v16

        Replay Monitor

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        Downloads

        AiodAiod.exe

        • Path C:\Program Files (x86)\Adobe\Acrobat Reader DC\Esl\AiodAiod.exe
        • Size 3.2MB
        • SHA256 f1c7e83c5d37fadfb5d54f454833da246dd363bcdb56b87be807a4339a2f84b7
        • MD5 SHA1 SHA512 SSDEEP TLSH

        WebInstallerEmbedded.exe

        • Path C:\Program Files (x86)\Adobe\Acrobat Reader DC\Reader\AcroCEF\WebInstallerEmbedded.exe
        • Size 10.6MB
        • SHA256 d6dbf7e008108e54d3fb22be4411871c070e9e3d43a9b161f639ca0569a52c75
        • MD5 SHA1 SHA512 SSDEEP TLSH

        WCChromeNativeMessagingHostCreate.exe

        • Path C:\Program Files (x86)\Adobe\Acrobat Reader DC\Reader\Browser\WCChromeExtn\WCChromeNativeMessagingHostCreate.exe
        • Size 3.2MB
        • SHA256 b19e6def95731800e464369571581d5378992ea69b7b0a65aa09888d18c42e9d
        • MD5 SHA1 SHA512 SSDEEP TLSH

        DirectInkOnix321.2.2.42216.exe

        • Path C:\Program Files (x86)\Adobe\Acrobat Reader DC\Reader\DirectInkOnix321.2.2.42216.exe
        • Size 3.9MB
        • SHA256 833aafe2cf7120a168a3772f23954ea343b2f12569b6484fc24170dd3ff92ee8
        • MD5 SHA1 SHA512 SSDEEP TLSH

        ExtendScriptLink.exe

        • Path C:\Program Files (x86)\Adobe\Acrobat Reader DC\Reader\ExtendScriptLink.exe
        • Size 3.2MB
        • SHA256 240b509c2a8dfcc095601731a56c6928998f88bf94c2c570c3e0f48674a5bea9
        • MD5 SHA1 SHA512 SSDEEP TLSH

        MicrosoftMicrosoft.exe

        • Path C:\Program Files (x86)\Common Files\Microsoft Shared\VSTA\Pipeline.v10.0\Contracts\MicrosoftMicrosoft.exe
        • Size 3.2MB
        • SHA256 6d84713df53748d4fbbd5250dcc49fa83f134bc84e874c93d86dee51c089fabc
        • MD5 SHA1 SHA512 SSDEEP TLSH

        OperatingWindows.exe

        • Path C:\Program Files (x86)\Common Files\Microsoft Shared\ink\fr-FR\OperatingWindows.exe
        • Size 3.2MB
        • SHA256 9d7fd05024a9802381ca9f160104e0ebe903782fb7526ad0ad6037301a0ef0c4
        • MD5 SHA1 SHA512 SSDEEP TLSH

        U381javaw.exe

        • Path C:\Program Files (x86)\Common Files\Oracle\Java\javapath_target_91390\U381javaw.exe
        • Size 3.2MB
        • SHA256 433d96e6d379011f8d73baebfa7e916bd0c3093571737761c7575c3a9e148190
        • MD5 SHA1 SHA512 SSDEEP TLSH

        StudioVisual.exe

        • Path C:\Program Files (x86)\Microsoft\EdgeWebView\Application\122.0.2365.106\StudioVisual.exe
        • Size 3.3MB
        • SHA256 f9f24dcff975faabd9a8306bc3765f221cd7d5f6e067295c61f2f855c7bd2423
        • MD5 SHA1 SHA512 SSDEEP TLSH

        prep_Activatable Class_Hermes_perf.cache

        • Path C:\Users\Admin\AppData\Local\Packages\Microsoft.Windows.StartMenuExperienceHost_cw5n1h2txyewy\TempState\prep_Activatable Class_Hermes_perf.cache
        • Size 599B
        • SHA256 b536a3dae9ea5c69081f0491eed829e3b57e32401fdf49a63031bcd6b20e6fdb
        • MD5 SHA1 SHA512 TLSH

        memory/2976-211-0x00000153028F0000-0x0000015302910000-memory.dmp

        memory/2976-235-0x0000015302B30000-0x0000015302B50000-memory.dmp

        memory/2976-212-0x0000015302CF0000-0x0000015302DF0000-memory.dmp

        memory/2976-205-0x00000153001E0000-0x00000153002E0000-memory.dmp

        memory/2976-204-0x00000153001E0000-0x00000153002E0000-memory.dmp

        memory/2976-203-0x00000153001E0000-0x00000153002E0000-memory.dmp

        memory/2976-249-0x00000153140C0000-0x00000153140E0000-memory.dmp

        memory/4968-368-0x0000023A13000000-0x0000023A13691000-memory.dmp