Overview

overview

6

Static

static

3

2026-09-01...ee.exe

windows10-2004-x64

6

2026-09-01...ee.exe

windows11-ltsc_2024-x64

6

Analysis

  • max time kernel
    135s
  • max time network
    149s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20260513-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20260513-enlocale:en-usos:windows10-2004-x64systemwindows
  • submitted
    03/09/2026, 16:47

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General

  • Target
    2026-09-01_0877093d0472c01f3baf888de9a8dbbc_elex_remcos_smoke-loader_stealc_stop_tofsee.exe
  • Size 824KB
  • Sample260903-van4naxyct
  • SHA256 2602916c7f9199c448dd56b86eac0b6c8e8a78e8469844275e17bb4cf952947d
  • MD5 SHA1 SHA512 SSDEEP TLSH
Score
6/10
discoverypersistence

Malware Config

Signatures

  • Adds Run key to start application 2 TTPs 2 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 4 IoCs
  • Drops file in Program Files directory 44 IoCs
  • Drops file in Windows directory 64 IoCs
  • System Location Discovery: System Language Discovery 1 TTPs 1 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 64 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\2026-09-01_0877093d0472c01f3baf888de9a8dbbc_elex_remcos_smoke-loader_stealc_stop_tofsee.exe
    "C:\Users\Admin\AppData\Local\Temp\2026-09-01_0877093d0472c01f3baf888de9a8dbbc_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
    • Drops file in Windows directory
    • System Location Discovery: System Language Discovery
    • Checks processor information in registry
    • Suspicious behavior: EnumeratesProcesses
    PID:4740
  • C:\Users\Admin\AppData\Local\Temp\2026-09-01_0877093d0472c01f3baf888de9a8dbbc_elex_remcos_smoke-loader_stealc_stop_tofsee.exe
    C:\Users\Admin\AppData\Local\Temp\2026-09-01_0877093d0472c01f3baf888de9a8dbbc_elex_remcos_smoke-loader_stealc_stop_tofsee.exe
    1⤵
    • Drops file in System32 directory
    • Checks processor information in registry
    • Suspicious behavior: EnumeratesProcesses
    PID:1724

Network

        MITRE ATT&CK Enterprise v16

        Replay Monitor

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        Downloads

        RCX9B11.tmp
        • Path C:\Program Files (x86)\Adobe\Acrobat Reader DC\Reader\AIR\RCX9B11.tmp
        • Size 901KB
        • SHA256 ddfaf32b9e79cb57b59234e033387dc8ba51d37d1765e328305fce97855d9d2a
        • MD5 SHA1 SHA512 SSDEEP TLSH
        Submit Download

        WCChromeNativeMessagingHostCreate.exe
        • Path C:\Program Files (x86)\Adobe\Acrobat Reader DC\Reader\Browser\WCChromeExtn\WCChromeNativeMessagingHostCreate.exe
        • Size 892KB
        • SHA256 cf97c216b9b4c6970eead6161fcc9fbc24717af54ca72a1fd7370e5f28f8f32e
        • MD5 SHA1 SHA512 SSDEEP TLSH
        Submit Download

        msaddsrMicrosoft.exe
        • Path C:\Program Files (x86)\Common Files\System\msadc\it-IT\msaddsrMicrosoft.exe
        • Size 901KB
        • SHA256 a7245f7750eb89e9f3f297bf9a7f03d3af53103ce973709773d3321093a64590
        • MD5 SHA1 SHA512 SSDEEP TLSH
        Submit Download

        RoyaleSystem284.exe
        • Path C:\Program Files (x86)\Reference Assemblies\Microsoft\Framework\v3.0\RoyaleSystem284.exe
        • Size 790KB
        • SHA256 8edfb8c08aa36c96c97ff5d8853d2999c8b2cfd3971d4a80cb9fe603eb0459a3
        • MD5 SHA1 SHA512 SSDEEP TLSH
        Submit Download

        RoyaleSystem284.exe
        • Path C:\Program Files (x86)\Reference Assemblies\Microsoft\Framework\v3.0\RoyaleSystem284.exe
        • Size 824KB
        • SHA256 2602916c7f9199c448dd56b86eac0b6c8e8a78e8469844275e17bb4cf952947d
        • MD5 SHA1 SHA512 SSDEEP TLSH
        Submit Download