Analysis

  • max time kernel
    138s
  • max time network
    146s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20260130-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20260130-enlocale:en-usos:windows10-2004-x64systemwindows
  • submitted
    23/04/2026, 14:02

General

  • Target
    2026-04-23_3e882e694677e3dde8d02c0eaefde1be_elex_glassworm_remcos_smoke-loader_stealc_stop_tofsee.exe
  • Size 1.7MB
  • Sample260423-rcjeeafx8t
  • SHA256 111b1ddfc98f076b6c66c8d1bdb74a620c5fe44c7c0a30398dfa3728de7a2273
  • 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 32 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 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\2026-04-23_3e882e694677e3dde8d02c0eaefde1be_elex_glassworm_remcos_smoke-loader_stealc_stop_tofsee.exe
    "C:\Users\Admin\AppData\Local\Temp\2026-04-23_3e882e694677e3dde8d02c0eaefde1be_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:2780
  • C:\Users\Admin\AppData\Local\Temp\2026-04-23_3e882e694677e3dde8d02c0eaefde1be_elex_glassworm_remcos_smoke-loader_stealc_stop_tofsee.exe
    C:\Users\Admin\AppData\Local\Temp\2026-04-23_3e882e694677e3dde8d02c0eaefde1be_elex_glassworm_remcos_smoke-loader_stealc_stop_tofsee.exe
    1⤵
    • Drops file in System32 directory
    • Checks processor information in registry
    • Suspicious behavior: EnumeratesProcesses
    PID:1964

Network

        MITRE ATT&CK Enterprise v16

        Replay Monitor

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        Downloads

        rt3dLibrary.exe

        • Path C:\Program Files (x86)\Adobe\Acrobat Reader DC\Reader\rt3dLibrary.exe
        • Size 2.4MB
        • SHA256 09d01a6ca719befd8a0b5a98e02460a7bf5fc60c0ff30b48d12d5aba4b12347a
        • MD5 SHA1 SHA512 SSDEEP TLSH

        RCXF86F.tmp

        • Path C:\Program Files (x86)\Common Files\Adobe\Reader\DC\Linguistics\Providers\Plugins2\AdobeHunspellPlugin\RCXF86F.tmp
        • Size 1.7MB
        • SHA256 2096583e687970553e0b109d673f79aebbc106bd77ac3bb36f948c754a476f7d
        • MD5 SHA1 SHA512 SSDEEP TLSH

        WAB32resWindows10.0.19041.1.160101.0800.exe

        • Path C:\Program Files (x86)\Common Files\System\ja-JP\WAB32resWindows10.0.19041.1.160101.0800.exe
        • Size 1.7MB
        • SHA256 111b1ddfc98f076b6c66c8d1bdb74a620c5fe44c7c0a30398dfa3728de7a2273
        • MD5 SHA1 SHA512 SSDEEP TLSH

        msedgepwahelper.exe

        • Path C:\Program Files (x86)\Microsoft\Edge\Application\msedgepwahelper.exe
        • Size 2.4MB
        • SHA256 175b12a580e9ac2f40ee00b515170c0aded84b07a0b337da60eed7f0de2e417b
        • MD5 SHA1 SHA512 SSDEEP TLSH

        memory/1964-157-0x00000000029E0000-0x0000000002A5E000-memory.dmp

        memory/2780-133-0x0000000000C10000-0x0000000000C8E000-memory.dmp