Overview

overview

6

Static

static

3

2026-05-07...ee.exe

windows10-2004-x64

6

2026-05-07...ee.exe

windows11-21h2-x64

6

Analysis

  • max time kernel
    149s
  • max time network
    104s
  • platform
    windows11-21h2_x64
  • resource
    win11-20250610-en
  • resource tags

    arch:x64arch:x86image:win11-20250610-enlocale:en-usos:windows11-21h2-x64system
  • submitted
    07/05/2026, 04:18

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General

  • Target
    2026-05-07_96088ba11a96dbbe363aed2b90de67a4_elex_remcos_smoke-loader_stealc_stop_tofsee.exe
  • Size 672KB
  • Sample260507-exdnfaaz4r
  • SHA256 155068bd75a8c79b9e162dc41d99fb427fa697ac1d24391c72ed65c2f3869738
  • 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 33 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\2026-05-07_96088ba11a96dbbe363aed2b90de67a4_elex_remcos_smoke-loader_stealc_stop_tofsee.exe
    "C:\Users\Admin\AppData\Local\Temp\2026-05-07_96088ba11a96dbbe363aed2b90de67a4_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:2724
    • C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -u -p 2724 -s 1468
      2⤵
      • Program crash
      PID:1996
  • C:\Users\Admin\AppData\Local\Temp\2026-05-07_96088ba11a96dbbe363aed2b90de67a4_elex_remcos_smoke-loader_stealc_stop_tofsee.exe
    C:\Users\Admin\AppData\Local\Temp\2026-05-07_96088ba11a96dbbe363aed2b90de67a4_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:4520
    • C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -u -p 4520 -s 1380
      2⤵
      • Program crash
      PID:5020
  • C:\Windows\SysWOW64\WerFault.exe
    C:\Windows\SysWOW64\WerFault.exe -pss -s 408 -p 2724 -ip 2724
    1⤵
      PID:2928
    • C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -pss -s 356 -p 4520 -ip 4520
      1⤵
        PID:5136

      Network

            MITRE ATT&CK Enterprise v16

            Replay Monitor

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            Downloads

            RCX5E20.tmp
            • Path C:\Program Files (x86)\Common Files\System\ado\de-DE\RCX5E20.tmp
            • Size 673KB
            • SHA256 7b846d2aeda7e1f6be33b39419e3b75a741df192ded29ec3593decccfc556583
            • MD5 SHA1 SHA512 SSDEEP TLSH
            Submit Download

            RCX6566.tmp
            • Path C:\Program Files (x86)\Common Files\System\ado\fr-FR\RCX6566.tmp
            • Size 673KB
            • SHA256 3b5b89f64af7e5c2aa61617a57aaa9d8845d2b89beb128d4fc69aa0d18d76699
            • MD5 SHA1 SHA512 SSDEEP TLSH
            Submit Download

            Windowsmpasdesc.exe
            • Path C:\Program Files (x86)\Windows Defender\es-ES\Windowsmpasdesc.exe
            • Size 672KB
            • SHA256 155068bd75a8c79b9e162dc41d99fb427fa697ac1d24391c72ed65c2f3869738
            • MD5 SHA1 SHA512 SSDEEP TLSH
            Submit Download

            memory/2724-171-0x0000000000B60000-0x0000000000BDB000-memory.dmp
            Download

            memory/4520-187-0x0000000000A90000-0x0000000000B0B000-memory.dmp
            Download