Analysis

  • max time kernel
    148s
  • max time network
    146s
  • platform
    windows11-ltsc_2024_x64
  • resource
    win11ltsc2024-20260709-en
  • resource tags

    arch:x64arch:x86image:win11ltsc2024-20260709-enlocale:en-usos:windows11-ltsc_2024-x64systemwindows
  • submitted
    27/07/2026, 19:56

General

  • Target
    2026-07-27_a276b0dbaf431ff61c976f3debc61a31_elex_rhadamanthys_smoke-loader.exe
  • Size 1.5MB
  • Sample260727-ynzn4ach99
  • SHA256 3032857949cc835abfb81213052d41cc53cf1c36187ccb90058aef16e067d349
  • 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\2026-07-27_a276b0dbaf431ff61c976f3debc61a31_elex_rhadamanthys_smoke-loader.exe
    "C:\Users\Admin\AppData\Local\Temp\2026-07-27_a276b0dbaf431ff61c976f3debc61a31_elex_rhadamanthys_smoke-loader.exe"
    1⤵
    • Enumerates connected drives
    • Drops file in Program Files directory
    • System Location Discovery: System Language Discovery
    PID:2032

Network

        MITRE ATT&CK Enterprise v16

        Replay Monitor

        Loading Replay Monitor...

        Downloads

        7z.exe

        • Path C:\Program Files\7-Zip\7z.exe
        • Size 332KB
        • SHA256 f1698512560431c5dea0f7ccef1677f75f45e5788c50eda4db5dd54ac91ab24c
        • MD5 SHA1 SHA512 SSDEEP TLSH

        RCX120B.tmp

        • Path C:\Program Files\Google\Chrome\Application\RCX120B.tmp
        • Size 284KB
        • SHA256 b1cbd1c633561065543652089c76c8248fc7b52eb7a30be89c47a9cf79660d1c
        • MD5 SHA1 SHA512 SSDEEP TLSH

        RCX14E4.tmp

        • Path C:\Program Files\Java\jdk-1.8\bin\RCX14E4.tmp
        • Size 284KB
        • SHA256 acb083462f6e3a345662e77bd2b073c3196d379c9b344decc7b696d88427d39f
        • MD5 SHA1 SHA512 SSDEEP TLSH