Overview

overview

10

Static

static

10

2026-08-19...er.exe

windows10-2004-x64

10

2026-08-19...er.exe

windows11-ltsc_2024-x64

10

Analysis

  • max time kernel
    148s
  • max time network
    136s
  • platform
    windows11-ltsc_2024_x64
  • resource
    win11ltsc2024-20260709-en
  • resource tags

    arch:x64arch:x86image:win11ltsc2024-20260709-enlocale:en-usos:windows11-ltsc_2024-x64systemwindows
  • submitted
    19/08/2026, 22:49

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General

  • Target
    2026-08-19_5c91b2ce6d01e6f886b54312951fe6e7_elex_rhadamanthys_smoke-loader.exe
  • Size 284KB
  • Sample260819-2r4c8sverf
  • SHA256 1dd7bca8024405c910d486271dad2183acc89f8f8dfab62ef420498df44370bb
  • MD5 SHA1 SHA512 SSDEEP TLSH
Score
10/10
adwarediscoverycosmuransomwarespywareworm

Malware Config

Signatures

  • Family: Cosmu

    Cosmu is a Windows worm written in C++.

    wormcosmu
  • Detects Cosmu payload 5 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.

  • Sets desktop wallpaper using registry 2 TTPs 1 IoCs
    ransomware
  • Drops file in Program Files directory 64 IoCs
  • Drops file in Windows directory 2 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
  • Modifies Internet Explorer settings 1 TTPs 2 IoCs
    adwarespyware

Processes

  • C:\Users\Admin\AppData\Local\Temp\2026-08-19_5c91b2ce6d01e6f886b54312951fe6e7_elex_rhadamanthys_smoke-loader.exe
    "C:\Users\Admin\AppData\Local\Temp\2026-08-19_5c91b2ce6d01e6f886b54312951fe6e7_elex_rhadamanthys_smoke-loader.exe"
    1⤵
    • Enumerates connected drives
    • Sets desktop wallpaper using registry
    • Drops file in Program Files directory
    • Drops file in Windows directory
    • System Location Discovery: System Language Discovery
    • Modifies Internet Explorer settings
    PID:2572

Network

        MITRE ATT&CK Enterprise v16

        Replay Monitor

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        Downloads

        7z.exe
        • Path C:\Program Files\7-Zip\7z.exe
        • Size 334KB
        • SHA256 03dd39eb99f07b403bd7e9b8c599193843451c00a2033f6f726935322a3e7670
        • 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 f6b328b164fabd302947baacbfe22dab993f693ac3f4e8f23ef2973e57543a14
        • MD5 SHA1 SHA512 SSDEEP TLSH
        Submit Download

        RCXAD65.tmp
        • Path C:\Program Files\Google\Chrome\Application\RCXAD65.tmp
        • Size 284KB
        • SHA256 27591baf9107c37263ff58c101186332aa6c597be64d5c095c8ee7f767469f91
        • MD5 SHA1 SHA512 SSDEEP TLSH
        Submit Download

        RCXAF15.tmp
        • Path C:\Program Files\Java\jdk-1.8\bin\RCXAF15.tmp
        • Size 284KB
        • SHA256 64af0178e252df7da8cc7126a08d2428b5767b3b6e6ac35d4cc8eb9b37117130
        • MD5 SHA1 SHA512 SSDEEP TLSH
        Submit Download

        appletviewer.exe
        • Path C:\Program Files\Java\jdk-1.8\bin\appletviewer.exe
        • Size 284KB
        • SHA256 e6e62a1eaf9cd3cb156e438fff8a180bfa99bdc111b5655e05bc41833854de60
        • MD5 SHA1 SHA512 SSDEEP TLSH
        Submit Download