Analysis

  • max time kernel
    148s
  • max time network
    130s
  • platform
    windows11-ltsc_2024_x64
  • resource
    win11ltsc2024-20260709-en
  • resource tags

    arch:x64arch:x86image:win11ltsc2024-20260709-enlocale:en-usos:windows11-ltsc_2024-x64systemwindows
  • submitted
    23/07/2026, 06:50

General

  • Target
    2026-07-23_8d02ab8799488a6a382e3c3a7a180198_elex_rhadamanthys_smoke-loader.exe
  • Size 284KB
  • Sample260723-hmepjashpf
  • SHA256 6d01a3ecd29100e4ec14797a7e5e86231712dd82bb5d3126b1b8f913a9c7f1a4
  • MD5 SHA1 SHA512 SSDEEP TLSH
Score
10/10

Malware Config

Signatures

  • Family: Cosmu

    Cosmu is a Windows worm written in C++.

  • Detects Cosmu payload 3 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\2026-07-23_8d02ab8799488a6a382e3c3a7a180198_elex_rhadamanthys_smoke-loader.exe
    "C:\Users\Admin\AppData\Local\Temp\2026-07-23_8d02ab8799488a6a382e3c3a7a180198_elex_rhadamanthys_smoke-loader.exe"
    1⤵
    • Enumerates connected drives
    • Drops file in Program Files directory
    • System Location Discovery: System Language Discovery
    PID:4640

Network

        MITRE ATT&CK Enterprise v16

        Replay Monitor

        Loading Replay Monitor...

        Downloads

        7z.exe

        • Path C:\Program Files\7-Zip\7z.exe
        • Size 327KB
        • SHA256 a8fda0e8fd4a5117cc15131a72252d377134aa4a2eb32c589779fcc868cec6c1
        • MD5 SHA1 SHA512 SSDEEP TLSH

        RCX2890.tmp

        • Path C:\Program Files\Google\Chrome\Application\RCX2890.tmp
        • Size 284KB
        • SHA256 ed6b7b1f45504e367fbb6a1b3cfc249e47b77481164a3b0cb59e43c0045e3b80
        • MD5 SHA1 SHA512 SSDEEP TLSH

        RCX2ACD.tmp

        • Path C:\Program Files\Java\jdk-1.8\bin\RCX2ACD.tmp
        • Size 284KB
        • SHA256 0236ddf220ef38334e941ad492d0ae98af967f04b15c162ef561f8025cce52a8
        • MD5 SHA1 SHA512 SSDEEP TLSH