Overview

overview

6

Static

static

3

2026-09-25...ee.exe

windows10-2004-x64

6

2026-09-25...ee.exe

windows11-ltsc_2024-x64

6

Analysis

  • max time kernel
    139s
  • max time network
    138s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20260911-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20260911-enlocale:en-usos:windows10-2004-x64systemwindows
  • submitted
    25/09/2026, 21:39

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General

  • Target
    2026-09-25_a81a8e78c4ed35256156eafdc9516d6b_coinminer_elex_remcos_smoke-loader_stealc_stop_tofsee.exe
  • Size 1.1MB
  • Sample260925-1hm48azyev
  • SHA256 f4f9add57ac41c99f9f89852d857168bc2f06173cf34da8a2e94a14350e91074
  • 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 31 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.

    discovery
  • 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 64 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\2026-09-25_a81a8e78c4ed35256156eafdc9516d6b_coinminer_elex_remcos_smoke-loader_stealc_stop_tofsee.exe
    "C:\Users\Admin\AppData\Local\Temp\2026-09-25_a81a8e78c4ed35256156eafdc9516d6b_coinminer_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:4104
  • C:\Users\Admin\AppData\Local\Temp\2026-09-25_a81a8e78c4ed35256156eafdc9516d6b_coinminer_elex_remcos_smoke-loader_stealc_stop_tofsee.exe
    C:\Users\Admin\AppData\Local\Temp\2026-09-25_a81a8e78c4ed35256156eafdc9516d6b_coinminer_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:692

Network

        MITRE ATT&CK Enterprise v16

        Replay Monitor

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        Downloads

        RCXC5C4.tmp
        • Path C:\Program Files (x86)\Adobe\Acrobat Reader DC\Reader\AIR\RCXC5C4.tmp
        • Size 1.1MB
        • SHA256 e7674df291b2c1e817a880a59629c18017167041fac6a269ca2c43c63c4cc373
        • MD5 SHA1 SHA512 SSDEEP TLSH
        Submit Download

        RegistrationUpdater.exe
        • Path C:\Program Files (x86)\Common Files\Java\Java Update\RegistrationUpdater.exe
        • Size 1.1MB
        • SHA256 5f5c4953858507dd2aa4fc75407665df9127f1af6ca5bd63481e6aa4ca035a53
        • MD5 SHA1 SHA512 SSDEEP TLSH
        Submit Download

        ExcelMicrosoft.exe
        • Path C:\Program Files (x86)\Common Files\Microsoft Shared\VSTA\Pipeline.v10.0\AddInSideAdapters\ExcelMicrosoft.exe
        • Size 1.1MB
        • SHA256 f4f9add57ac41c99f9f89852d857168bc2f06173cf34da8a2e94a14350e91074
        • MD5 SHA1 SHA512 SSDEEP TLSH
        Submit Download

        RCX839C.tmp
        • Path C:\Windows\Microsoft.NET\assembly\GAC_MSIL\System.ServiceProcess.resources\v4.0_4.0.0.0_ja_b03f5f7f11d50a3a\RCX839C.tmp
        • Size 1.1MB
        • SHA256 837110d193aa00da38f9300cc265f14fa31ff2c8b4d5ef64553f0c22a9d3eddd
        • MD5 SHA1 SHA512 SSDEEP TLSH
        Submit Download