Analysis

  • max time kernel
    142s
  • max time network
    126s
  • platform
    windows11-ltsc_2024_x64
  • resource
    win11ltsc2024-20260911-en
  • resource tags

    arch:x64arch:x86image:win11ltsc2024-20260911-enlocale:en-usos:windows11-ltsc_2024-x64systemwindows
  • submitted
    11/10/2026, 02:11

General

  • Target
    2026-10-10_cb361624dae5cabdc17b5cf7826afda9_elex_remcos_smoke-loader_stealc_stop_tofsee.exe
  • Size 1009KB
  • Sample261011-cmkb5atzcs
  • SHA256 452f28ed314a595196bf1e3ff7f19d3d521878a1279f38c879971551342e5886
  • MD5 SHA1 SHA512 SSDEEP TLSH

Malware Config

Signatures

  • Adds Run key to start application 2 TTPs 2 IoCs
  • Checks installed software on the system 1 TTPs

    Looks up Uninstall key entries in the registry to enumerate software on the system.

  • Drops file in System32 directory 4 IoCs
  • Drops file in Program Files directory 19 IoCs
  • Drops file in Windows directory 64 IoCs
  • Reads the TCP/IP host and domain name from the registry 1 TTPs 4 IoCs

    The configured hostname and DNS domain identify the machine and are commonly collected to profile a host before it reports in.

  • 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.

  • 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\2026-10-10_cb361624dae5cabdc17b5cf7826afda9_elex_remcos_smoke-loader_stealc_stop_tofsee.exe
    "C:\Users\Admin\AppData\Local\Temp\2026-10-10_cb361624dae5cabdc17b5cf7826afda9_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
    • Reads the TCP/IP host and domain name from the registry
    • System Location Discovery: System Language Discovery
    • Checks processor information in registry
    • Suspicious behavior: EnumeratesProcesses
    PID:1264
  • C:\Users\Admin\AppData\Local\Temp\2026-10-10_cb361624dae5cabdc17b5cf7826afda9_elex_remcos_smoke-loader_stealc_stop_tofsee.exe
    C:\Users\Admin\AppData\Local\Temp\2026-10-10_cb361624dae5cabdc17b5cf7826afda9_elex_remcos_smoke-loader_stealc_stop_tofsee.exe
    1⤵
    • Drops file in System32 directory
    • Reads the TCP/IP host and domain name from the registry
    • System Location Discovery: System Language Discovery
    • Checks processor information in registry
    • Suspicious behavior: EnumeratesProcesses
    PID:4864

Network

        MITRE ATT&CK Enterprise v16

        Replay Monitor

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        Downloads

        AdobeLinguisticAXE8SharedExpat.exe

        • Path C:\Program Files (x86)\Adobe\Acrobat Reader DC\Reader\AdobeLinguisticAXE8SharedExpat.exe
        • Size 992KB
        • SHA256 6eb9bef77c6037b39c25a4e39997dda30ea7a4781e5ba061c620a67d759eee63
        • MD5 SHA1 SHA512 SSDEEP TLSH

        VSTOInstallerVSTOLoader10.0.60828.0.exe

        • Path C:\Program Files (x86)\Common Files\Microsoft Shared\VSTO\10.0\VSTOInstallerVSTOLoader10.0.60828.0.exe
        • Size 993KB
        • SHA256 7dc657f869e651e1ab8b171f4d7e986ccf55ec576a10b6bbc50404f7defded75
        • MD5 SHA1 SHA512 SSDEEP TLSH

        PresentationHostDllMicrosoft.exe

        • Path C:\Windows\Microsoft.NET\Framework\v3.0\WPF\de-DE\PresentationHostDllMicrosoft.exe
        • Size 993KB
        • SHA256 45c2ce5aa089f564a116dd9acdf40cdf3472ee2657ca43fa9a80b1666d10d461
        • MD5 SHA1 SHA512 SSDEEP TLSH