Overview

overview

10

Static

static

10

2026-08-07...er.exe

windows10-2004-x64

10

2026-08-07...er.exe

windows11-ltsc_2024-x64

10

Analysis

  • max time kernel
    148s
  • max time network
    152s
  • platform
    windows11-ltsc_2024_x64
  • resource
    win11ltsc2024-20260709-en
  • resource tags

    arch:x64arch:x86image:win11ltsc2024-20260709-enlocale:en-usos:windows11-ltsc_2024-x64systemwindows
  • submitted
    08/08/2026, 01:07

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General

  • Target
    2026-08-07_78432b4a549d731eacd346618c91b357_elex_rhadamanthys_smoke-loader.exe
  • Size 1.5MB
  • Sample260808-bg1aqaah99
  • SHA256 72117a81c109138651e169e9ef75cd27cdea03cd0c0edf7e2c82b50a30197063
  • 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 4 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\2026-08-07_78432b4a549d731eacd346618c91b357_elex_rhadamanthys_smoke-loader.exe
    "C:\Users\Admin\AppData\Local\Temp\2026-08-07_78432b4a549d731eacd346618c91b357_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:5748

Network

        MITRE ATT&CK Enterprise v16

        Replay Monitor

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        Downloads

        7z.exe
        • Path C:\Program Files\7-Zip\7z.exe
        • Size 335KB
        • SHA256 5d577752bb579be78398fa2610168638d591916abe8950460d98e157b34de742
        • MD5 SHA1 SHA512 SSDEEP TLSH
        Submit Download

        RCX6CEC.tmp
        • Path C:\Program Files\Google\Chrome\Application\RCX6CEC.tmp
        • Size 284KB
        • SHA256 1883cc9ac2d6b1bd577b3732a998b2ebbc53af00f1a181487ec047427db3b6a9
        • MD5 SHA1 SHA512 SSDEEP TLSH
        Submit Download

        RCX6E10.tmp
        • Path C:\Program Files\Java\jdk-1.8\bin\RCX6E10.tmp
        • Size 284KB
        • SHA256 eb7085ddecdcaafbe74c4f6d3dce7b542c8b3d528e74b7f633788cb5199a6206
        • MD5 SHA1 SHA512 SSDEEP TLSH
        Submit Download

        appletviewer.exe
        • Path C:\Program Files\Java\jdk-1.8\bin\appletviewer.exe
        • Size 284KB
        • SHA256 734b8337ad8f0322560607f3c7b59836ff425933c1c7d1cb891b448fad6ecd76
        • MD5 SHA1 SHA512 SSDEEP TLSH
        Submit Download