Overview

overview

6

Static

static

3

2026-06-05...ee.exe

windows10-2004-x64

6

2026-06-05...ee.exe

windows11-21h2-x64

6

Analysis

  • max time kernel
    149s
  • max time network
    140s
  • platform
    windows11-21h2_x64
  • resource
    win11-20260513-en
  • resource tags

    arch:x64arch:x86image:win11-20260513-enlocale:en-usos:windows11-21h2-x64systemwindows
  • submitted
    05/06/2026, 05:16

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General

  • Target
    2026-06-05_919d668277c5d4cb12a33e743d62fb28_elex_remcos_smoke-loader_stealc_stop_tofsee.exe
  • Size 692KB
  • Sample260605-fx5mlact7l
  • SHA256 e2493bd79996f237bce07346cf7f189dbd2d9d006f7b2d6cf1a53e82c7c3ca75
  • MD5 SHA1 SHA512 SSDEEP TLSH
Score
6/10
discoverypersistence

Malware Config

Signatures

  • Adds Run key to start application 2 TTPs 4 IoCs
    persistence
  • Checks installed software on the system 1 TTPs

    Looks up Uninstall key entries in the registry to enumerate software on the system.

    discovery
  • Drops file in System32 directory 2 IoCs
  • Drops file in Program Files directory 30 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.

    discovery
  • Checks processor information in registry 2 TTPs 6 IoCs

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

  • Suspicious behavior: EnumeratesProcesses 50 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\2026-06-05_919d668277c5d4cb12a33e743d62fb28_elex_remcos_smoke-loader_stealc_stop_tofsee.exe
    "C:\Users\Admin\AppData\Local\Temp\2026-06-05_919d668277c5d4cb12a33e743d62fb28_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
    • System Location Discovery: System Language Discovery
    • Checks processor information in registry
    • Suspicious behavior: EnumeratesProcesses
    PID:3232
    • C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -u -p 3232 -s 1656
      2⤵
      • Program crash
      PID:228
  • C:\Users\Admin\AppData\Local\Temp\2026-06-05_919d668277c5d4cb12a33e743d62fb28_elex_remcos_smoke-loader_stealc_stop_tofsee.exe
    C:\Users\Admin\AppData\Local\Temp\2026-06-05_919d668277c5d4cb12a33e743d62fb28_elex_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:964
    • C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -u -p 964 -s 1424
      2⤵
      • Program crash
      PID:1484
  • C:\Windows\SysWOW64\WerFault.exe
    C:\Windows\SysWOW64\WerFault.exe -pss -s 416 -p 3232 -ip 3232
    1⤵
      PID:344
    • C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -pss -s 512 -p 964 -ip 964
      1⤵
        PID:5104

      Network

            MITRE ATT&CK Enterprise v16

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            Downloads

            RCX33FF.tmp
            • Path C:\Program Files (x86)\Common Files\Adobe\Reader\DC\Linguistics\Providers\Plugins2\AdobeHunspellPlugin\RCX33FF.tmp
            • Size 694KB
            • SHA256 0fa3831addffdd0f55f1b9fe05755b2d85203bbe37ef8a0c53c62384598cf2bb
            • MD5 SHA1 SHA512 SSDEEP TLSH
            Submit Download

            EmbeddedWebView.exe
            • Path C:\Program Files (x86)\Microsoft\EdgeCore\132.0.2957.140\EBWebView\x86\EmbeddedWebView.exe
            • Size 692KB
            • SHA256 e2493bd79996f237bce07346cf7f189dbd2d9d006f7b2d6cf1a53e82c7c3ca75
            • MD5 SHA1 SHA512 SSDEEP TLSH
            Submit Download