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
    02/11/2026, 08:53

General

  • Target
    2026-11-01_c8e68980cc9893c941ec0b3ce68619e5_elex_rhadamanthys_smoke-loader.exe
  • Size 284KB
  • Sample261102-ktfxaaef37
  • SHA256 87fa8db84a2b4baf66573471798b602210b72dd1bc2b465646228d4a0cfdba8e
  • MD5 SHA1 SHA512 SSDEEP TLSH
Score
10/10

Malware Config

Signatures

  • Family: Cosmu

    Cosmu is a Windows worm written in C++.

  • Detects Cosmu payload 5 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_c8e68980cc9893c941ec0b3ce68619e5_elex_rhadamanthys_smoke-loader.exe
    "C:\Users\Admin\AppData\Local\Temp\2026-11-01_c8e68980cc9893c941ec0b3ce68619e5_elex_rhadamanthys_smoke-loader.exe"
    1⤵
    • Enumerates connected drives
    • Drops file in Program Files directory
    • System Location Discovery: System Language Discovery
    PID:1744

Network

        MITRE ATT&CK Enterprise v16

        Replay Monitor

        Loading Replay Monitor...

        Downloads

        7z.exe

        • Path C:\Program Files\7-Zip\7z.exe
        • Size 327KB
        • SHA256 60ac1ee9b267690129082bc9baa4f9be0bb3f17129b52f3a5d266210c00d2dfa
        • MD5 SHA1 SHA512 SSDEEP TLSH

        RCX469D.tmp

        • Path C:\Program Files\Google\Chrome\Application\140.0.7339.81\Installer\RCX469D.tmp
        • Size 284KB
        • SHA256 d34906d1e8fd472a739ab92e57e7067e13f0165833ca45814575ecc788a3069f
        • MD5 SHA1 SHA512 SSDEEP TLSH

        RCX46AE.tmp

        • Path C:\Program Files\Google\Chrome\Application\140.0.7339.81\Installer\RCX46AE.tmp
        • Size 284KB
        • SHA256 8089d2be11b4a71368f080cc0738f474449223b8489bfbb425484935b9e45158
        • MD5 SHA1 SHA512 SSDEEP TLSH

        RCX45AC.tmp

        • Path C:\Program Files\Google\Chrome\Application\RCX45AC.tmp
        • Size 284KB
        • SHA256 c961b1f2c067198f92dc767f272f2ea99a48a45600ae80f4b88f0586c9907c29
        • MD5 SHA1 SHA512 SSDEEP TLSH

        dotnet.exe

        • Path C:\Program Files\dotnet\dotnet.exe
        • Size 284KB
        • SHA256 6b1152e5e715281dd190e0cf6d832cf4001e4006fe543c638edf8539068e1eee
        • MD5 SHA1 SHA512 SSDEEP TLSH