Analysis

  • max time kernel
    132s
  • max time network
    125s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20260911-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20260911-enlocale:en-usos:windows10-2004-x64systemwindows
  • submitted
    29/10/2026, 18:45

General

  • Target
    2026-10-28_c950e6536127ac93657a18b97ca962cb_elex_remcos_smoke-loader_stealc_stop_tofsee.exe
  • Size 1.0MB
  • Sample261029-xee3nasx4j
  • SHA256 cbad73890b54f90466dabe89a3411fd1122e5943e5e84017a36e9c62971b180e
  • 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 5 IoCs
  • Drops file in Program Files directory 16 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\2026-10-28_c950e6536127ac93657a18b97ca962cb_elex_remcos_smoke-loader_stealc_stop_tofsee.exe
    "C:\Users\Admin\AppData\Local\Temp\2026-10-28_c950e6536127ac93657a18b97ca962cb_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:1448
  • C:\Users\Admin\AppData\Local\Temp\2026-10-28_c950e6536127ac93657a18b97ca962cb_elex_remcos_smoke-loader_stealc_stop_tofsee.exe
    C:\Users\Admin\AppData\Local\Temp\2026-10-28_c950e6536127ac93657a18b97ca962cb_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:4012

Network

        MITRE ATT&CK Enterprise v16

        Replay Monitor

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        Downloads

        AcrobatAiod.exe

        • Path C:\Program Files (x86)\Adobe\Acrobat Reader DC\Esl\AcrobatAiod.exe
        • Size 1.0MB
        • SHA256 80020c0847006cd9f782cbade61888398179094fc6d48ff453421a963dde33f3
        • MD5 SHA1 SHA512 SSDEEP TLSH

        AcrobatAiod.exe

        • Path C:\Program Files (x86)\Adobe\Acrobat Reader DC\Esl\AcrobatAiod.exe
        • Size 1.0MB
        • SHA256 cbad73890b54f90466dabe89a3411fd1122e5943e5e84017a36e9c62971b180e
        • MD5 SHA1 SHA512 SSDEEP TLSH

        RCXAD36.tmp

        • Path C:\Windows\assembly\GAC_MSIL\System.Data.Resources\2.0.0.0_fr_b77a5c561934e089\RCXAD36.tmp
        • Size 1.0MB
        • SHA256 122eb87f1bfc5bf8b38110a49300d7814094064c275e13b5e131a11e291b9d1c
        • MD5 SHA1 SHA512 SSDEEP TLSH