Analysis

  • max time kernel
    148s
  • max time network
    133s
  • platform
    windows11-ltsc_2024_x64
  • resource
    win11ltsc2024-20260710-en
  • resource tags

    arch:x64arch:x86image:win11ltsc2024-20260710-enlocale:en-usos:windows11-ltsc_2024-x64systemwindows
  • submitted
    04/08/2026, 10:45

General

  • Target
    2026-08-03_9572b6e6fe7982f946ff7c7fbd2c1698_elex_rhadamanthys_smoke-loader.exe
  • Size 296KB
  • Sample260804-mthf8acr4t
  • SHA256 72f262e5df3c14487a073535e3ab6854890cf95b78a386175aaa312d732fc618
  • MD5 SHA1 SHA512 SSDEEP TLSH
Score
10/10

Malware Config

Signatures

  • Family: Cosmu

    Cosmu is a Windows worm written in C++.

  • 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.

  • Drops file in Program Files directory 64 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.

Processes

  • C:\Users\Admin\AppData\Local\Temp\2026-08-03_9572b6e6fe7982f946ff7c7fbd2c1698_elex_rhadamanthys_smoke-loader.exe
    "C:\Users\Admin\AppData\Local\Temp\2026-08-03_9572b6e6fe7982f946ff7c7fbd2c1698_elex_rhadamanthys_smoke-loader.exe"
    1⤵
    • Enumerates connected drives
    • Drops file in Program Files directory
    • System Location Discovery: System Language Discovery
    PID:5484

Network

        MITRE ATT&CK Enterprise v16

        Replay Monitor

        Loading Replay Monitor...

        Downloads

        7z.exe

        • Path C:\Program Files\7-Zip\7z.exe
        • Size 340KB
        • SHA256 0667b32c90182cd1153d6426ef3d48263d44ad6c108fad298387be4e108b9500
        • MD5 SHA1 SHA512 SSDEEP TLSH

        RCX9AD2.tmp

        • Path C:\Program Files\Google\Chrome\Application\RCX9AD2.tmp
        • Size 288KB
        • SHA256 dc94cbb65fb04379b9031cd7c54345965a01a0bc8a3248574f756359d02323c8
        • MD5 SHA1 SHA512 SSDEEP TLSH

        chrome.exe

        • Path C:\Program Files\Google\Chrome\Application\chrome.exe
        • Size 1.5MB
        • SHA256 7caad57e84b84a0c6f6ec63cd2ed8c942744ce8d10e977bb367a0cc809cfdad9
        • MD5 SHA1 SHA512 SSDEEP TLSH

        RCX9C54.tmp

        • Path C:\Program Files\Java\jdk-1.8\bin\RCX9C54.tmp
        • Size 288KB
        • SHA256 df0f462b5254fdd859ac7029b65f1afa1e41f8bc71d89a4e81b16696db409803
        • MD5 SHA1 SHA512 SSDEEP TLSH