Overview

overview

10

Static

static

10

2026-08-10...er.exe

windows10-2004-x64

10

2026-08-10...er.exe

windows11-ltsc_2024-x64

10

Analysis

  • max time kernel
    148s
  • max time network
    149s
  • platform
    windows11-ltsc_2024_x64
  • resource
    win11ltsc2024-20260709-en
  • resource tags

    arch:x64arch:x86image:win11ltsc2024-20260709-enlocale:en-usos:windows11-ltsc_2024-x64systemwindows
  • submitted
    10/08/2026, 23:44

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General

  • Target
    2026-08-10_8637dd95d15fb0b26c14cf2b4aab94b7_elex_rhadamanthys_smoke-loader.exe
  • Size 284KB
  • Sample260810-3rce7abc53
  • SHA256 f851e9e9aac8d3a45e6b3fe4f7c4c28d5f353d2a4f0e489d3d472829b70af96a
  • 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\2026-08-10_8637dd95d15fb0b26c14cf2b4aab94b7_elex_rhadamanthys_smoke-loader.exe
    "C:\Users\Admin\AppData\Local\Temp\2026-08-10_8637dd95d15fb0b26c14cf2b4aab94b7_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:4628

Network

        MITRE ATT&CK Enterprise v16

        Replay Monitor

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        Downloads

        7z.exe
        • Path C:\Program Files\7-Zip\7z.exe
        • Size 329KB
        • SHA256 cddfcbae8cd6036234d58666120393771ec64ecabce2544f008c3cb7bab194f3
        • MD5 SHA1 SHA512 SSDEEP TLSH
        Submit Download

        elevated_tracing_service.exe
        • Path C:\Program Files\Google\Chrome\Application\140.0.7339.81\elevated_tracing_service.exe
        • Size 1.5MB
        • SHA256 b9fd335915cf9d48173d5c42de5792e8dc8caf86942d48a6324b5765d6fa7203
        • MD5 SHA1 SHA512 SSDEEP TLSH
        Submit Download

        RCX3D41.tmp
        • Path C:\Program Files\Google\Chrome\Application\RCX3D41.tmp
        • Size 284KB
        • SHA256 9f8b14aa4e16332402941c1523031373a34a0e96d5110d2918243e12534d0286
        • MD5 SHA1 SHA512 SSDEEP TLSH
        Submit Download

        RCX3ED2.tmp
        • Path C:\Program Files\Java\jdk-1.8\bin\RCX3ED2.tmp
        • Size 284KB
        • SHA256 0e87eb2dc2856c565695b879977a8b04ca5e43505b67f6015a47ec3f90558d09
        • MD5 SHA1 SHA512 SSDEEP TLSH
        Submit Download