Overview

overview

10

Static

static

10

2026-06-29...er.exe

windows10-2004-x64

10

2026-06-29...er.exe

windows11-ltsc_2024-x64

10

Analysis

  • max time kernel
    148s
  • platform
    windows11-ltsc_2024_x64
  • resource
    win11ltsc2024-20260618-en
  • resource tags

    arch:x64arch:x86image:win11ltsc2024-20260618-enlocale:en-usos:windows11-ltsc_2024-x64systemwindows
  • submitted
    30/06/2026, 10:15

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General

  • Target
    2026-06-29_4603f8e917900251c7b628ce7d6707c7_elex_rhadamanthys_smoke-loader.exe
  • Size 284KB
  • Sample260630-mac3dscv6w
  • SHA256 5a74559d6ace2ae76955289554a12ed7bdd4f2afd08fd6c83fe30687e046a2a4
  • MD5 SHA1 SHA512 SSDEEP TLSH
Score
10/10
discoverycosmuworm

Malware Config

Signatures

  • Family: Cosmu

    Cosmu is a Windows worm written in C++.

    wormcosmu
  • Detects Cosmu payload 7 IoCs

    Cosmu is a worm written in C++.

  • Enumerates connected drives 3 TTPs 10 IoCs

    Attempts to read the root path of hard drives other than the default C: drive.

  • Drops file in Program Files 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

Processes

  • C:\Users\Admin\AppData\Local\Temp\2026-06-29_4603f8e917900251c7b628ce7d6707c7_elex_rhadamanthys_smoke-loader.exe
    "C:\Users\Admin\AppData\Local\Temp\2026-06-29_4603f8e917900251c7b628ce7d6707c7_elex_rhadamanthys_smoke-loader.exe"
    1⤵
    • Enumerates connected drives
    • Drops file in Program Files directory
    • System Location Discovery: System Language Discovery
    PID:6168

Network

        MITRE ATT&CK Enterprise v16

        Replay Monitor

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        Downloads

        7z.exe
        • Path C:\Program Files\7-Zip\7z.exe
        • Size 333KB
        • SHA256 82b9fff6e2345acc13b0b8b54ff025e49644d386cc0c0c8278fe008ce2e2c9be
        • MD5 SHA1 SHA512 SSDEEP TLSH
        Submit Download

        setup.exe
        • Path C:\Program Files\Google\Chrome\Application\140.0.7339.81\Installer\setup.exe
        • Size 1.5MB
        • SHA256 1877bb59e8f4717dd6dfb462a7e730770d2604add817ae04538eca64e9414515
        • MD5 SHA1 SHA512 SSDEEP TLSH
        Submit Download

        chrome_pwa_launcher.exe
        • Path C:\Program Files\Google\Chrome\Application\140.0.7339.81\chrome_pwa_launcher.exe
        • Size 1.5MB
        • SHA256 4c83190824fa2a9658f3dd4b0faf359b461446aa2e98a3c296e240260d3809bf
        • MD5 SHA1 SHA512 SSDEEP TLSH
        Submit Download

        RCX4380.tmp
        • Path C:\Program Files\Google\Chrome\Application\RCX4380.tmp
        • Size 284KB
        • SHA256 70317a48ee15f9d81426d5e7f385e30722058aac32df611288532196d8653853
        • MD5 SHA1 SHA512 SSDEEP TLSH
        Submit Download

        appletviewer.exe
        • Path C:\Program Files\Java\jdk-1.8\bin\appletviewer.exe
        • Size 284KB
        • SHA256 d2b8bc2579d9ea53b2f926146cf9d8c87969f97f4a2a8dd5c2fdbdfce60d8a75
        • MD5 SHA1 SHA512 SSDEEP TLSH
        Submit Download

        crashreporter.exe
        • Path C:\Program Files\Mozilla Firefox\crashreporter.exe
        • Size 1.5MB
        • SHA256 28850bd274602afa269e910241271e829ce9c90c233f6fa8e21773f39488de2c
        • MD5 SHA1 SHA512 SSDEEP TLSH
        Submit Download

        createdump.exe
        • Path C:\Program Files\dotnet\shared\Microsoft.NETCore.App\6.0.27\createdump.exe
        • Size 284KB
        • SHA256 671d45b4c06639c933b79a236c76833d56a7f397b438335d93a9952f01e73db2
        • MD5 SHA1 SHA512 SSDEEP TLSH
        Submit Download