Analysis

  • max time kernel
    148s
  • max time network
    127s
  • platform
    windows11-ltsc_2024_x64
  • resource
    win11ltsc2024-20260911-en
  • resource tags

    arch:x64arch:x86image:win11ltsc2024-20260911-enlocale:en-usos:windows11-ltsc_2024-x64systemwindows
  • submitted
    01/11/2026, 16:52

General

  • Target
    2026-11-01_1802273a643609c0ca25b80ff18d5149_elex_rhadamanthys_smoke-loader.exe
  • Size 326KB
  • Sample261101-vdq3escf74
  • SHA256 8d2426fde000e6c17c0d851c442331312f8c4e0ab54f65d3e6e527b52436560b
  • 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\2026-11-01_1802273a643609c0ca25b80ff18d5149_elex_rhadamanthys_smoke-loader.exe
    "C:\Users\Admin\AppData\Local\Temp\2026-11-01_1802273a643609c0ca25b80ff18d5149_elex_rhadamanthys_smoke-loader.exe"
    1⤵
    • Enumerates connected drives
    • Drops file in Program Files directory
    • System Location Discovery: System Language Discovery
    PID:4608

Network

        MITRE ATT&CK Enterprise v16

        Replay Monitor

        Loading Replay Monitor...

        Downloads

        7z.exe

        • Path C:\Program Files\7-Zip\7z.exe
        • Size 324KB
        • SHA256 2b4b8741b47ed0401a2af88fa6e9ef694fcd5fc9735950dc04378c3fb46823b6
        • MD5 SHA1 SHA512 SSDEEP TLSH

        RCX2421.tmp

        • Path C:\Program Files\Google\Chrome\Application\140.0.7339.81\Installer\RCX2421.tmp
        • Size 288KB
        • SHA256 385cafdcafae3a22aa32e89c335a14373ee979a2492c9182455e506b1db1d54a
        • MD5 SHA1 SHA512 SSDEEP TLSH

        RCX2422.tmp

        • Path C:\Program Files\Google\Chrome\Application\140.0.7339.81\Installer\RCX2422.tmp
        • Size 288KB
        • SHA256 8707ea6667e90dd5326d807794bbefc05ad3d29a2853440f38f8259d75a02da8
        • MD5 SHA1 SHA512 SSDEEP TLSH

        RCX2311.tmp

        • Path C:\Program Files\Google\Chrome\Application\RCX2311.tmp
        • Size 288KB
        • SHA256 3b80a68d8daaf82c515b5ddc45978996bb2f082805aba93ef93134f929c60b48
        • MD5 SHA1 SHA512 SSDEEP TLSH