Overview

overview

10

Static

static

10

2026-08-25...er.exe

windows10-2004-x64

10

2026-08-25...er.exe

windows11-ltsc_2024-x64

10

Analysis

  • max time kernel
    148s
  • platform
    windows11-ltsc_2024_x64
  • resource
    win11ltsc2024-20260710-en
  • resource tags

    arch:x64arch:x86image:win11ltsc2024-20260710-enlocale:en-usos:windows11-ltsc_2024-x64systemwindows
  • submitted
    25/08/2026, 23:44

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General

  • Target
    2026-08-25_ff9862eb02377264bbe2d1349c512b29_elex_rhadamanthys_smoke-loader.exe
  • Size 288KB
  • Sample260825-3rekjsxtdv
  • SHA256 8eb0ad813618b1e6afde0bcd23aaf746ba0ee67df62ee264ecc3eb2bdb0bcf8a
  • 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\2026-08-25_ff9862eb02377264bbe2d1349c512b29_elex_rhadamanthys_smoke-loader.exe
    "C:\Users\Admin\AppData\Local\Temp\2026-08-25_ff9862eb02377264bbe2d1349c512b29_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:5980

Network

        MITRE ATT&CK Enterprise v16

        Replay Monitor

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        Downloads

        7z.exe
        • Path C:\Program Files\7-Zip\7z.exe
        • Size 338KB
        • SHA256 7e330547176c0e7178fde4a492ffda6aaf1ce2045fcf78a1a2ef1935d82bf089
        • MD5 SHA1 SHA512 SSDEEP TLSH
        Submit Download

        RCX93CD.tmp
        • Path C:\Program Files\Google\Chrome\Application\RCX93CD.tmp
        • Size 344KB
        • SHA256 b5de97fcd00116555529e50dce74f624fd319c2a324acd9004f6a336aa74c27f
        • MD5 SHA1 SHA512 SSDEEP TLSH
        Submit Download

        chrome.exe
        • Path C:\Program Files\Google\Chrome\Application\chrome.exe
        • Size 1.5MB
        • SHA256 65ab21d69d3d5f7122988868ab88ebc3760dd9fcc26c17c2ca9c535cbf84a6ae
        • MD5 SHA1 SHA512 SSDEEP TLSH
        Submit Download

        RCX95EB.tmp
        • Path C:\Program Files\Java\jdk-1.8\bin\RCX95EB.tmp
        • Size 288KB
        • SHA256 c3d32f97a555fed7021eaf46e1a6459e9efaa3e94943550f6e881ee24ee0ceb8
        • MD5 SHA1 SHA512 SSDEEP TLSH
        Submit Download