Analysis

  • max time kernel
    150s
  • max time network
    125s
  • platform
    windows11-ltsc_2024_x64
  • resource
    win11ltsc2024-20260911-en
  • resource tags

    arch:x64arch:x86image:win11ltsc2024-20260911-enlocale:en-usos:windows11-ltsc_2024-x64systemwindows
  • submitted
    24/10/2026, 16:08

General

  • Target
    2026-10-22_3b8fbb517631179ba65fae7dfd11fc0e_elex_rhadamanthys_smoke-loader.exe
  • Size 1.5MB
  • Sample261024-tle5fsay5t
  • SHA256 0a15cf0b7b5511ad1aaff44e21245b1b3a55730101f1532e88f67cc088bb9d22
  • 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\2026-10-22_3b8fbb517631179ba65fae7dfd11fc0e_elex_rhadamanthys_smoke-loader.exe
    "C:\Users\Admin\AppData\Local\Temp\2026-10-22_3b8fbb517631179ba65fae7dfd11fc0e_elex_rhadamanthys_smoke-loader.exe"
    1⤵
    • Enumerates connected drives
    • Drops file in Program Files directory
    • System Location Discovery: System Language Discovery
    PID:432

Network

        MITRE ATT&CK Enterprise v16

        Replay Monitor

        Loading Replay Monitor...

        Downloads

        7z.exe

        • Path C:\Program Files\7-Zip\7z.exe
        • Size 334KB
        • SHA256 6daf814b7245b9af0cce46158680bf690558b70a90ebb4efd76b08f05bce745a
        • MD5 SHA1 SHA512 SSDEEP TLSH

        RCX38F1.tmp

        • Path C:\Program Files\Google\Chrome\Application\140.0.7339.81\Installer\RCX38F1.tmp
        • Size 288KB
        • SHA256 196b40bee93d0f3b47b4db7665d49a9294ec6fea30144651c7b9eb50f19174a2
        • MD5 SHA1 SHA512 SSDEEP TLSH

        RCX38F2.tmp

        • Path C:\Program Files\Google\Chrome\Application\140.0.7339.81\Installer\RCX38F2.tmp
        • Size 288KB
        • SHA256 2d584f8b4e998179c9a863bb18bcadc230e67f35dbb1b2737ccd270e5153224b
        • MD5 SHA1 SHA512 SSDEEP TLSH

        RCX37F1.tmp

        • Path C:\Program Files\Google\Chrome\Application\RCX37F1.tmp
        • Size 288KB
        • SHA256 eea6a5cc78a6bbad51f8fd70acfe58bee527d5376421fb22b65735c1e15277e8
        • MD5 SHA1 SHA512 SSDEEP TLSH