Overview

overview

6

Static

static

3

2026-08-19...ee.exe

windows10-2004-x64

6

2026-08-19...ee.exe

windows11-ltsc_2024-x64

6

Analysis

  • max time kernel
    128s
  • max time network
    148s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20260513-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20260513-enlocale:en-usos:windows10-2004-x64systemwindows
  • submitted
    19/08/2026, 17:51

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General

  • Target
    2026-08-19_b5bb8033082ad76fcf94adc86642cd6c_elex_remcos_smoke-loader_stealc_stop_tofsee.exe
  • Size 994KB
  • Sample260819-we6pyazbla
  • SHA256 5c5e15d33a9d865847f48578745e92ec9a60b940a2d881f5771d82e72d3c4195
  • 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 2 IoCs
  • Drops file in Program Files directory 31 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 62 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\2026-08-19_b5bb8033082ad76fcf94adc86642cd6c_elex_remcos_smoke-loader_stealc_stop_tofsee.exe
    "C:\Users\Admin\AppData\Local\Temp\2026-08-19_b5bb8033082ad76fcf94adc86642cd6c_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:5056
  • C:\Users\Admin\AppData\Local\Temp\2026-08-19_b5bb8033082ad76fcf94adc86642cd6c_elex_remcos_smoke-loader_stealc_stop_tofsee.exe
    C:\Users\Admin\AppData\Local\Temp\2026-08-19_b5bb8033082ad76fcf94adc86642cd6c_elex_remcos_smoke-loader_stealc_stop_tofsee.exe
    1⤵
    • Drops file in System32 directory
    • Checks processor information in registry
    • Suspicious behavior: EnumeratesProcesses
    PID:1676

Network

        MITRE ATT&CK Enterprise v16

        Replay Monitor

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        Downloads

        RCX43C2.tmp
        • Path C:\Program Files (x86)\Adobe\Acrobat Reader DC\Reader\plug_ins\Multimedia\MPP\RCX43C2.tmp
        • Size 995KB
        • SHA256 cfb2f37bc414a9343db856dc32d6ff700c5c8d3c21b9af2e0dd3fbb56c6d6fd5
        • MD5 SHA1 SHA512 SSDEEP TLSH
        Submit Download

        RCX391F.tmp
        • Path C:\Program Files (x86)\Common Files\Microsoft Shared\VC\RCX391F.tmp
        • Size 995KB
        • SHA256 e8be3317e10827a153a53ae4c99c205b92892708f80da70366c0ee6f5204e489
        • MD5 SHA1 SHA512 SSDEEP TLSH
        Submit Download

        iexploreieinstal.exe
        • Path C:\Program Files (x86)\Internet Explorer\ja-JP\iexploreieinstal.exe
        • Size 994KB
        • SHA256 5c5e15d33a9d865847f48578745e92ec9a60b940a2d881f5771d82e72d3c4195
        • MD5 SHA1 SHA512 SSDEEP TLSH
        Submit Download