Analysis

  • max time kernel
    150s
  • max time network
    149s
  • platform
    windows11-21h2_x64
  • resource
    win11-20260513-en
  • resource tags

    arch:x64arch:x86image:win11-20260513-enlocale:en-usos:windows11-21h2-x64systemwindows
  • submitted
    04/06/2026, 04:25

General

  • Target
    2026-06-04_9171070672e76074e087a1ff69791cad_elex_glassworm_remcos_smoke-loader_stealc_stop_tofsee.exe
  • Size 796KB
  • Sample260604-e118xahy9z
  • SHA256 3fa3e1f35eb27dbbc480522364eb98f20258c468163055932fbc352c5cbaa394
  • MD5 SHA1 SHA512 SSDEEP TLSH

Malware Config

Signatures

  • Adds Run key to start application 2 TTPs 4 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 34 IoCs
  • Program crash 2 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 48 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\2026-06-04_9171070672e76074e087a1ff69791cad_elex_glassworm_remcos_smoke-loader_stealc_stop_tofsee.exe
    "C:\Users\Admin\AppData\Local\Temp\2026-06-04_9171070672e76074e087a1ff69791cad_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
    • System Location Discovery: System Language Discovery
    • Checks processor information in registry
    • Suspicious behavior: EnumeratesProcesses
    PID:1144
    • C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -u -p 1144 -s 1516
      2⤵
      • Program crash
      PID:2792
  • C:\Users\Admin\AppData\Local\Temp\2026-06-04_9171070672e76074e087a1ff69791cad_elex_glassworm_remcos_smoke-loader_stealc_stop_tofsee.exe
    C:\Users\Admin\AppData\Local\Temp\2026-06-04_9171070672e76074e087a1ff69791cad_elex_glassworm_remcos_smoke-loader_stealc_stop_tofsee.exe
    1⤵
    • Adds Run key to start application
    • Drops file in System32 directory
    • System Location Discovery: System Language Discovery
    • Checks processor information in registry
    • Suspicious behavior: EnumeratesProcesses
    PID:1868
    • C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -u -p 1868 -s 1460
      2⤵
      • Program crash
      PID:3332
  • C:\Windows\SysWOW64\WerFault.exe
    C:\Windows\SysWOW64\WerFault.exe -pss -s 412 -p 1144 -ip 1144
    1⤵
      PID:2368
    • C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -pss -s 408 -p 1868 -ip 1868
      1⤵
        PID:4920

      Network

            MITRE ATT&CK Enterprise v16

            Replay Monitor

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            Downloads

            RCXD3E7.tmp

            • Path C:\Program Files (x86)\Common Files\Microsoft Shared\ink\de-DE\RCXD3E7.tmp
            • Size 797KB
            • SHA256 461e07b1e8ed074ef9154f84ddb21a67579ac578cd5c2b778c2b1b612b9415b7
            • MD5 SHA1 SHA512 SSDEEP TLSH

            MicrosoftSystem.exe

            • Path C:\Program Files (x86)\Common Files\System\msadc\es-ES\MicrosoftSystem.exe
            • Size 796KB
            • SHA256 3fa3e1f35eb27dbbc480522364eb98f20258c468163055932fbc352c5cbaa394
            • MD5 SHA1 SHA512 SSDEEP TLSH