Analysis

  • max time kernel
    150s
  • platform
    windows11-ltsc_2024_x64
  • resource
    win11ltsc2024-20260710-en
  • resource tags

    arch:x64arch:x86image:win11ltsc2024-20260710-enlocale:en-usos:windows11-ltsc_2024-x64systemwindows
  • submitted
    15/08/2026, 04:11

General

  • Target
    2026-08-15_39ee1c7d73c57601d792d46ea81c411d_elex_rhadamanthys_smoke-loader.exe
  • Size 1.5MB
  • Sample260815-esae8aen8w
  • SHA256 865faf3ba2d75232ae9dc7be71db2a7db924204a876161e942ac01f9672c165c
  • 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\2026-08-15_39ee1c7d73c57601d792d46ea81c411d_elex_rhadamanthys_smoke-loader.exe
    "C:\Users\Admin\AppData\Local\Temp\2026-08-15_39ee1c7d73c57601d792d46ea81c411d_elex_rhadamanthys_smoke-loader.exe"
    1⤵
    • Enumerates connected drives
    • Drops file in Program Files directory
    • System Location Discovery: System Language Discovery
    PID:3128

Network

        MITRE ATT&CK Enterprise v16

        Replay Monitor

        Loading Replay Monitor...

        Downloads

        7z.exe

        • Path C:\Program Files\7-Zip\7z.exe
        • Size 330KB
        • SHA256 51c32fd671334626967d0d94c54fdbd15b7b5df6325926b6ec7b9711aa3c722e
        • MD5 SHA1 SHA512 SSDEEP TLSH

        RCX6599.tmp

        • Path C:\Program Files\Google\Chrome\Application\RCX6599.tmp
        • Size 284KB
        • SHA256 c1e511d1444ecaa8aafbebef973c77675da2dbdd687842485ee515298db210b6
        • MD5 SHA1 SHA512 SSDEEP TLSH

        chrome.exe

        • Path C:\Program Files\Google\Chrome\Application\chrome.exe
        • Size 1.5MB
        • SHA256 20748ce68d9a6c2690e4a7346c1276f99d7c48e3fc80802da237fa295c1aae80
        • MD5 SHA1 SHA512 SSDEEP TLSH

        RCX6788.tmp

        • Path C:\Program Files\Java\jdk-1.8\bin\RCX6788.tmp
        • Size 284KB
        • SHA256 5814f779752ceaf7adc26998a2b6c74a4d00a2cd730127abdb160721dbe42551
        • MD5 SHA1 SHA512 SSDEEP TLSH