Analysis

  • max time kernel
    148s
  • max time network
    129s
  • platform
    windows11-ltsc_2024_x64
  • resource
    win11ltsc2024-20260709-en
  • resource tags

    arch:x64arch:x86image:win11ltsc2024-20260709-enlocale:en-usos:windows11-ltsc_2024-x64systemwindows
  • submitted
    13/08/2026, 06:35

General

  • Target
    2026-08-12_64f073b8597a847eee8ec15389078dbc_elex_rhadamanthys_smoke-loader.exe
  • Size 1.5MB
  • Sample260813-hchnfatenc
  • SHA256 a932008e3642add47357033ee0a7e3637c165a42270c4868a8458a5c2d7d7069
  • 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\2026-08-12_64f073b8597a847eee8ec15389078dbc_elex_rhadamanthys_smoke-loader.exe
    "C:\Users\Admin\AppData\Local\Temp\2026-08-12_64f073b8597a847eee8ec15389078dbc_elex_rhadamanthys_smoke-loader.exe"
    1⤵
    • Enumerates connected drives
    • Drops file in Program Files directory
    • System Location Discovery: System Language Discovery
    PID:4076

Network

        MITRE ATT&CK Enterprise v16

        Replay Monitor

        Loading Replay Monitor...

        Downloads

        7z.exe

        • Path C:\Program Files\7-Zip\7z.exe
        • Size 336KB
        • SHA256 1e854d23792f9fbd880492127924a4e5f23ef34ac95b9c865960a8217c67e18b
        • MD5 SHA1 SHA512 SSDEEP TLSH

        RCXF357.tmp

        • Path C:\Program Files\Google\Chrome\Application\RCXF357.tmp
        • Size 284KB
        • SHA256 35fe3641a5b571c19be3d7b6218c667fca5b980fab845868ce2ef299949ba2cd
        • MD5 SHA1 SHA512 SSDEEP TLSH

        chrome.exe

        • Path C:\Program Files\Google\Chrome\Application\chrome.exe
        • Size 1.5MB
        • SHA256 a65be6b6a864fbb306b5ba05572e13b24c2bcb91c64a96cdb0bb3bc985b31fca
        • MD5 SHA1 SHA512 SSDEEP TLSH

        RCXF4E8.tmp

        • Path C:\Program Files\Java\jdk-1.8\bin\RCXF4E8.tmp
        • Size 284KB
        • SHA256 9c3eb80f9ea3104038309ebb2d708ccc635170fdc56dff57c9447d7f49f9739b
        • MD5 SHA1 SHA512 SSDEEP TLSH