Overview

overview

6

Static

static

3

2026-04-17...ee.exe

windows10-2004-x64

6

2026-04-17...ee.exe

windows11-21h2-x64

6

Analysis

  • max time kernel
    149s
  • max time network
    94s
  • platform
    windows11-21h2_x64
  • resource
    win11-20260130-en
  • resource tags

    arch:x64arch:x86image:win11-20260130-enlocale:en-usos:windows11-21h2-x64systemwindows
  • submitted
    17/04/2026, 15:02

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General

  • Target
    2026-04-17_261bfad14b87166e852e66557bca06a9_elex_remcos_smoke-loader_stealc_stop_tofsee.exe
  • Size 779KB
  • Sample260417-seqryacz9y
  • SHA256 7087ee6dd31d7009b7eed507549159b4fa14f309f906987ea69938de051719eb
  • 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 32 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\2026-04-17_261bfad14b87166e852e66557bca06a9_elex_remcos_smoke-loader_stealc_stop_tofsee.exe
    "C:\Users\Admin\AppData\Local\Temp\2026-04-17_261bfad14b87166e852e66557bca06a9_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:2552
    • C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -u -p 2552 -s 1768
      2⤵
      • Program crash
      PID:1388
  • C:\Users\Admin\AppData\Local\Temp\2026-04-17_261bfad14b87166e852e66557bca06a9_elex_remcos_smoke-loader_stealc_stop_tofsee.exe
    C:\Users\Admin\AppData\Local\Temp\2026-04-17_261bfad14b87166e852e66557bca06a9_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:3300
    • C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -u -p 3300 -s 1500
      2⤵
      • Program crash
      PID:2216
  • C:\Windows\SysWOW64\WerFault.exe
    C:\Windows\SysWOW64\WerFault.exe -pss -s 408 -p 2552 -ip 2552
    1⤵
      PID:2428
    • C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -pss -s 352 -p 3300 -ip 3300
      1⤵
        PID:1364

      Network

            MITRE ATT&CK Enterprise v16

            Replay Monitor

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            Downloads

            Componentsd3dcompiler47.exe
            • Path C:\Program Files (x86)\Adobe\Acrobat Reader DC\Reader\AcroCEF\Componentsd3dcompiler47.exe
            • Size 8.2MB
            • SHA256 ff8b411641b9ce6f1c777a53a8adc884b9a2527be0858ef30a38f7f664ebb160
            • MD5 SHA1 SHA512 SSDEEP TLSH
            Submit Download

            Acrobatsqlite.exe
            • Path C:\Program Files (x86)\Adobe\Acrobat Reader DC\Reader\Acrobatsqlite.exe
            • Size 781KB
            • SHA256 da38bbc341db6ea1d01f11ee69493641beeec15daf2ded12cd9a58123297857d
            • MD5 SHA1 SHA512 SSDEEP TLSH
            Submit Download

            AnnotAcrobat.exe
            • Path C:\Program Files (x86)\Adobe\Acrobat Reader DC\Reader\plug_ins\AnnotAcrobat.exe
            • Size 780KB
            • SHA256 d0754e0ea5ad4f30f1f642aa5f2ff1e7673fca603e6c6232a91c8f1f005ce2ea
            • MD5 SHA1 SHA512 SSDEEP TLSH
            Submit Download

            WindowsSistema10.0.22000.1.160101.0800.exe
            • Path C:\Program Files (x86)\Common Files\System\es-ES\WindowsSistema10.0.22000.1.160101.0800.exe
            • Size 779KB
            • SHA256 7087ee6dd31d7009b7eed507549159b4fa14f309f906987ea69938de051719eb
            • MD5 SHA1 SHA512 SSDEEP TLSH
            Submit Download

            RCX2CF9.tmp
            • Path C:\Program Files (x86)\Microsoft\EdgeCore\132.0.2957.140\EBWebView\x86\RCX2CF9.tmp
            • Size 780KB
            • SHA256 d6f8f3d9be2eced6b4e2c995ea9e25482c143d782afe26c72c4d52c60e613474
            • MD5 SHA1 SHA512 SSDEEP TLSH
            Submit Download

            memory/2552-155-0x0000000000B70000-0x0000000000BEC000-memory.dmp
            Download

            memory/2552-156-0x0000000002F00000-0x0000000002F07000-memory.dmp
            Download

            memory/3300-171-0x0000000002CA0000-0x0000000002CA7000-memory.dmp
            Download

            memory/3300-170-0x0000000000900000-0x000000000097C000-memory.dmp
            Download