Overview

overview

6

Static

static

3

2026-04-22...ee.exe

windows10-2004-x64

6

2026-04-22...ee.exe

windows11-21h2-x64

6

Analysis

  • max time kernel
    149s
  • max time network
    149s
  • platform
    windows11-21h2_x64
  • resource
    win11-20260130-en
  • resource tags

    arch:x64arch:x86image:win11-20260130-enlocale:en-usos:windows11-21h2-x64systemwindows
  • submitted
    22/04/2026, 04:09

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General

  • Target
    2026-04-22_cb92c8672f6536085cee864d42ce392b_elex_remcos_smoke-loader_stealc_stop_tofsee.exe
  • Size 877KB
  • Sample260422-eq4laagy2m
  • SHA256 09aa1463fbf4d2f6cbf62182c2830bb9b0a37537924ddef55924fbae6ab66be4
  • 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 39 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\2026-04-22_cb92c8672f6536085cee864d42ce392b_elex_remcos_smoke-loader_stealc_stop_tofsee.exe
    "C:\Users\Admin\AppData\Local\Temp\2026-04-22_cb92c8672f6536085cee864d42ce392b_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:2288
    • C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -u -p 2288 -s 1664
      2⤵
      • Program crash
      PID:2068
  • C:\Users\Admin\AppData\Local\Temp\2026-04-22_cb92c8672f6536085cee864d42ce392b_elex_remcos_smoke-loader_stealc_stop_tofsee.exe
    C:\Users\Admin\AppData\Local\Temp\2026-04-22_cb92c8672f6536085cee864d42ce392b_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:3456
    • C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -u -p 3456 -s 1360
      2⤵
      • Program crash
      PID:3684
  • C:\Windows\SysWOW64\WerFault.exe
    C:\Windows\SysWOW64\WerFault.exe -pss -s 408 -p 2288 -ip 2288
    1⤵
      PID:1132
    • C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -pss -s 496 -p 3456 -ip 3456
      1⤵
        PID:4372

      Network

            MITRE ATT&CK Enterprise v16

            Replay Monitor

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            Downloads

            RCX3826.tmp
            • Path C:\Program Files (x86)\Common Files\Microsoft Shared\ink\ja-JP\RCX3826.tmp
            • Size 878KB
            • SHA256 4d9667ed263ebc57c000976b1cf99000110326a92ce6c3ef17af8a2845b22701
            • MD5 SHA1 SHA512 SSDEEP TLSH
            Submit Download

            Proxyeventlogprovider139.0.3405.125.exe
            • Path C:\Program Files (x86)\Microsoft\Edge\Application\139.0.3405.125\Proxyeventlogprovider139.0.3405.125.exe
            • Size 877KB
            • SHA256 09aa1463fbf4d2f6cbf62182c2830bb9b0a37537924ddef55924fbae6ab66be4
            • MD5 SHA1 SHA512 SSDEEP TLSH
            Submit Download