Analysis

  • max time kernel
    148s
  • max time network
    113s
  • platform
    windows11-ltsc_2024_x64
  • resource
    win11ltsc2024-20260709-en
  • resource tags

    arch:x64arch:x86image:win11ltsc2024-20260709-enlocale:en-usos:windows11-ltsc_2024-x64systemwindows
  • submitted
    18/07/2026, 03:48

General

  • Target
    2026-07-17_576295b7d41a2eda1574e0fa353cf9e0_elex_rhadamanthys_smoke-loader.exe
  • Size 284KB
  • Sample260718-ec7e1saw91
  • SHA256 c2acc9c1e37509ae83205c0285173e3f5b5cb1a8db99ff501cedad9b5a44424f
  • 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\2026-07-17_576295b7d41a2eda1574e0fa353cf9e0_elex_rhadamanthys_smoke-loader.exe
    "C:\Users\Admin\AppData\Local\Temp\2026-07-17_576295b7d41a2eda1574e0fa353cf9e0_elex_rhadamanthys_smoke-loader.exe"
    1⤵
    • Enumerates connected drives
    • Drops file in Program Files directory
    • System Location Discovery: System Language Discovery
    PID:5576

Network

        MITRE ATT&CK Enterprise v16

        Replay Monitor

        Loading Replay Monitor...

        Downloads

        7z.exe

        • Path C:\Program Files\7-Zip\7z.exe
        • Size 323KB
        • SHA256 cf1177570094b827d36aa4dcc4e6c0c4b6574d5e4f26dde1e04c20573ea4c04d
        • MD5 SHA1 SHA512 SSDEEP TLSH

        RCX846C.tmp

        • Path C:\Program Files\Google\Chrome\Application\RCX846C.tmp
        • Size 284KB
        • SHA256 63f4c8513a898df7adda960cab92d763e968b57306df714e47a76655aa591c6a
        • MD5 SHA1 SHA512 SSDEEP TLSH

        RCX8590.tmp

        • Path C:\Program Files\Java\jdk-1.8\bin\RCX8590.tmp
        • Size 284KB
        • SHA256 eae5951cccdb9f3f93922e570245db877c7e0b2816750cf96fba8f12234d78a5
        • MD5 SHA1 SHA512 SSDEEP TLSH