Overview

overview

7

Static

static

3

2026-05-29...ee.exe

windows10-2004-x64

7

2026-05-29...ee.exe

windows11-21h2-x64

6

Analysis

  • max time kernel
    149s
  • max time network
    95s
  • platform
    windows11-21h2_x64
  • resource
    win11-20260513-en
  • resource tags

    arch:x64arch:x86image:win11-20260513-enlocale:en-usos:windows11-21h2-x64systemwindows
  • submitted
    29/05/2026, 04:16

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General

  • Target
    2026-05-29_9f9b9957549edf68d37bc005b53bea4e_elex_remcos_smoke-loader_stealc_stop_tofsee.exe
  • Size 1.5MB
  • Sample260529-ev3vjscy71
  • SHA256 9e74e562568284ea3ed5925d5389376a50782bafaf927a18e7c5ccb6c73112f5
  • 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 27 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 46 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\2026-05-29_9f9b9957549edf68d37bc005b53bea4e_elex_remcos_smoke-loader_stealc_stop_tofsee.exe
    "C:\Users\Admin\AppData\Local\Temp\2026-05-29_9f9b9957549edf68d37bc005b53bea4e_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:5236
    • C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -u -p 5236 -s 1500
      2⤵
      • Program crash
      PID:2912
  • C:\Users\Admin\AppData\Local\Temp\2026-05-29_9f9b9957549edf68d37bc005b53bea4e_elex_remcos_smoke-loader_stealc_stop_tofsee.exe
    C:\Users\Admin\AppData\Local\Temp\2026-05-29_9f9b9957549edf68d37bc005b53bea4e_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:3912
    • C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -u -p 3912 -s 1528
      2⤵
      • Program crash
      PID:5424
  • C:\Windows\SysWOW64\WerFault.exe
    C:\Windows\SysWOW64\WerFault.exe -pss -s 416 -p 5236 -ip 5236
    1⤵
      PID:4632
    • C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -pss -s 528 -p 3912 -ip 3912
      1⤵
        PID:5412

      Network

            MITRE ATT&CK Enterprise v16

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            Downloads

            WindowsOperating.exe
            • Path C:\Program Files (x86)\Common Files\Microsoft Shared\ink\WindowsOperating.exe
            • Size 1.5MB
            • SHA256 9e74e562568284ea3ed5925d5389376a50782bafaf927a18e7c5ccb6c73112f5
            • MD5 SHA1 SHA512 SSDEEP TLSH
            Submit Download

            RCX272C.tmp
            • Path C:\Program Files (x86)\Common Files\System\Ole DB\en-US\RCX272C.tmp
            • Size 1.5MB
            • SHA256 d01d70ea101e6206f7a66c41c246109d2de6170f8e8da0a95f23d1eb4bcfbae7
            • MD5 SHA1 SHA512 SSDEEP TLSH
            Submit Download