Overview

overview

10

Static

static

10

2026-07-28...er.exe

windows10-2004-x64

10

2026-07-28...er.exe

windows11-ltsc_2024-x64

10

Analysis

  • max time kernel
    148s
  • max time network
    115s
  • platform
    windows11-ltsc_2024_x64
  • resource
    win11ltsc2024-20260709-en
  • resource tags

    arch:x64arch:x86image:win11ltsc2024-20260709-enlocale:en-usos:windows11-ltsc_2024-x64systemwindows
  • submitted
    29/07/2026, 01:48

Sharing

Copy URL Twitter E-mail
Report Analysis Logs

General

  • Target
    2026-07-28_12e70d822f37d0138ee52caf704d047a_elex_rhadamanthys_smoke-loader.exe
  • Size 296KB
  • Sample260729-b76v7ade42
  • SHA256 fabbd2fc195b77e0ec1419a9bc40f5bef13645971f051799abf2de02f2b9c85e
  • 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\2026-07-28_12e70d822f37d0138ee52caf704d047a_elex_rhadamanthys_smoke-loader.exe
    "C:\Users\Admin\AppData\Local\Temp\2026-07-28_12e70d822f37d0138ee52caf704d047a_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:3956

Network

        MITRE ATT&CK Enterprise v16

        Replay Monitor

        Loading Replay Monitor...

        Downloads

        7z.exe
        • Path C:\Program Files\7-Zip\7z.exe
        • Size 322KB
        • SHA256 16618ed07da63ff8e531fd901b52cfccf6e8722e0d77f25b6181c445b82a9aab
        • MD5 SHA1 SHA512 SSDEEP TLSH
        Submit Download

        RCXEC24.tmp
        • Path C:\Program Files\Google\Chrome\Application\RCXEC24.tmp
        • Size 284KB
        • SHA256 38b82aabb26ca7f943bcd9e7bafdef238eeade27b53b05075298af33eb3cf6ec
        • MD5 SHA1 SHA512 SSDEEP TLSH
        Submit Download

        chrome.exe
        • Path C:\Program Files\Google\Chrome\Application\chrome.exe
        • Size 1.5MB
        • SHA256 ca63e3b98786fb4128e49c11de0498721b73662c00816959edb4865a1232ec88
        • MD5 SHA1 SHA512 SSDEEP TLSH
        Submit Download

        RCXEE03.tmp
        • Path C:\Program Files\Java\jdk-1.8\bin\RCXEE03.tmp
        • Size 284KB
        • SHA256 f129030167332271a47a50c49868fcd1072051371d023161d88ba80af3eefdf4
        • MD5 SHA1 SHA512 SSDEEP TLSH
        Submit Download