Overview

overview

6

Static

static

3

2026-04-22...ee.exe

windows10-2004-x64

6

2026-04-22...ee.exe

windows11-21h2-x64

6

Analysis

  • max time kernel
    148s
  • max time network
    138s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20260130-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20260130-enlocale:en-usos:windows10-2004-x64systemwindows
  • submitted
    22/04/2026, 03:53

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General

  • Target
    2026-04-22_a0ecd573c2c1bd80a4ff7328455ed619_elex_remcos_smoke-loader_stealc_stop_tofsee.exe
  • Size 669KB
  • Sample260422-efppdagw5m
  • SHA256 210fdcb575d259cf23fc6892c776346317e75657b46040e46507d8b814322f63
  • 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 26 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\2026-04-22_a0ecd573c2c1bd80a4ff7328455ed619_elex_remcos_smoke-loader_stealc_stop_tofsee.exe
    "C:\Users\Admin\AppData\Local\Temp\2026-04-22_a0ecd573c2c1bd80a4ff7328455ed619_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:3456
  • C:\Users\Admin\AppData\Local\Temp\2026-04-22_a0ecd573c2c1bd80a4ff7328455ed619_elex_remcos_smoke-loader_stealc_stop_tofsee.exe
    C:\Users\Admin\AppData\Local\Temp\2026-04-22_a0ecd573c2c1bd80a4ff7328455ed619_elex_remcos_smoke-loader_stealc_stop_tofsee.exe
    1⤵
    • Drops file in System32 directory
    • Checks processor information in registry
    • Suspicious behavior: EnumeratesProcesses
    PID:2572

Network

        MITRE ATT&CK Enterprise v16

        Replay Monitor

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        Downloads

        RCX3C81.tmp
        • Path C:\Program Files (x86)\Adobe\Acrobat Reader DC\Esl\RCX3C81.tmp
        • Size 670KB
        • SHA256 97dd36bff9925e20dc8b834402e40c6c2db88f9e78078cd75ee52efdc2abe0e5
        • MD5 SHA1 SHA512 SSDEEP TLSH
        Submit Download

        RCX2403.tmp
        • Path C:\Program Files (x86)\Common Files\Microsoft Shared\VSTA\Pipeline.v10.0\AddInSideAdapters\RCX2403.tmp
        • Size 670KB
        • SHA256 1c594149c53d2e36e1b54661b34ed5a3028cb6492f05b40aa6af8c9c6173818a
        • MD5 SHA1 SHA512 SSDEEP TLSH
        Submit Download

        WindowsWindows.exe
        • Path C:\Program Files (x86)\Common Files\System\de-DE\WindowsWindows.exe
        • Size 670KB
        • SHA256 a1f0d158cbcabd2e20555b30bcf5ab13cc536fa71446c8fa7f5a986e77e4df95
        • MD5 SHA1 SHA512 SSDEEP TLSH
        Submit Download

        WindowsDesign3.5.30729.9135.exe
        • Path C:\Program Files (x86)\Reference Assemblies\Microsoft\Framework\v3.5\de\WindowsDesign3.5.30729.9135.exe
        • Size 669KB
        • SHA256 210fdcb575d259cf23fc6892c776346317e75657b46040e46507d8b814322f63
        • MD5 SHA1 SHA512 SSDEEP TLSH
        Submit Download