Overview

overview

6

Static

static

3

2026-06-04...ee.exe

windows10-2004-x64

6

2026-06-04...ee.exe

windows11-21h2-x64

6

Analysis

  • max time kernel
    149s
  • max time network
    96s
  • 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, 18:47

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General

  • Target
    2026-06-04_3411463b8ff223b10f20d1eac9aaf713_elex_remcos_smoke-loader_stealc_stop_tofsee.exe
  • Size 1.1MB
  • Sample260604-xfcc6acv2w
  • SHA256 3ec87d413878930b3ff3d0a57a8a4e0364fb443851123deb2df40667d541560a
  • 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 44 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 52 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\2026-06-04_3411463b8ff223b10f20d1eac9aaf713_elex_remcos_smoke-loader_stealc_stop_tofsee.exe
    "C:\Users\Admin\AppData\Local\Temp\2026-06-04_3411463b8ff223b10f20d1eac9aaf713_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:4844
    • C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -u -p 4844 -s 1388
      2⤵
      • Program crash
      PID:5220
  • C:\Users\Admin\AppData\Local\Temp\2026-06-04_3411463b8ff223b10f20d1eac9aaf713_elex_remcos_smoke-loader_stealc_stop_tofsee.exe
    C:\Users\Admin\AppData\Local\Temp\2026-06-04_3411463b8ff223b10f20d1eac9aaf713_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:5104
    • C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -u -p 5104 -s 1368
      2⤵
      • Program crash
      PID:5380
  • C:\Windows\SysWOW64\WerFault.exe
    C:\Windows\SysWOW64\WerFault.exe -pss -s 408 -p 4844 -ip 4844
    1⤵
      PID:5192
    • C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -pss -s 528 -p 5104 -ip 5104
      1⤵
        PID:5312

      Network

            MITRE ATT&CK Enterprise v16

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            Downloads

            Systemoledb32r.exe
            • Path C:\Program Files (x86)\Common Files\System\Ole DB\fr-FR\Systemoledb32r.exe
            • Size 1.1MB
            • SHA256 220427801f3be45cee71961672e73ccdf8d473fd2f9c3ee7a9de519b8a12f29e
            • MD5 SHA1 SHA512 SSDEEP TLSH
            Submit Download

            RCX7A51.tmp
            • Path C:\Program Files (x86)\Microsoft\EdgeCore\132.0.2957.140\EBWebView\x86\RCX7A51.tmp
            • Size 1.1MB
            • SHA256 a54572c7833e9797e36421dbd3e035e2aefe6d45d21de7a034e17dfc772ae519
            • MD5 SHA1 SHA512 SSDEEP TLSH
            Submit Download

            miniinstallerMicrosoft.exe
            • Path C:\Program Files (x86)\Microsoft\EdgeUpdate_disable\Install\{3C9C959A-F248-4B60-A580-F846F36C0A80}\miniinstallerMicrosoft.exe
            • Size 1.1MB
            • SHA256 3ec87d413878930b3ff3d0a57a8a4e0364fb443851123deb2df40667d541560a
            • MD5 SHA1 SHA512 SSDEEP TLSH
            Submit Download