Overview

overview

10

Static

static

10

2026-11-05...er.exe

windows10-2004-x64

10

2026-11-05...er.exe

windows11-ltsc_2024-x64

10

Analysis

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

    arch:x64arch:x86image:win11ltsc2024-20260911-enlocale:en-usos:windows11-ltsc_2024-x64systemwindows
  • submitted
    05/11/2026, 03:02

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General

  • Target
    2026-11-05_097d034fecf1cbe0a905a137406ffe39_elex_rhadamanthys_smoke-loader.exe
  • Size 1.4MB
  • Sample261105-djm5aaft7y
  • SHA256 274a12df0c327919951210bd2a550b8e76bca55ef5f2ab90c6d124f5d8102034
  • MD5 SHA1 SHA512 SSDEEP TLSH
Score
10/10
adwarediscoverycosmuransomwarespywareworm

Malware Config

Signatures

  • Family: Cosmu

    Cosmu is a Windows worm written in C++.

    wormcosmu
  • 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.

  • Sets desktop wallpaper using registry 2 TTPs 1 IoCs
    ransomware
  • Drops file in Program Files directory 64 IoCs
  • Drops file in Windows directory 2 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.

    discovery
  • Modifies Internet Explorer settings 1 TTPs 2 IoCs
    adwarespyware

Processes

  • C:\Users\Admin\AppData\Local\Temp\2026-11-05_097d034fecf1cbe0a905a137406ffe39_elex_rhadamanthys_smoke-loader.exe
    "C:\Users\Admin\AppData\Local\Temp\2026-11-05_097d034fecf1cbe0a905a137406ffe39_elex_rhadamanthys_smoke-loader.exe"
    1⤵
    • Enumerates connected drives
    • Sets desktop wallpaper using registry
    • Drops file in Program Files directory
    • Drops file in Windows directory
    • System Location Discovery: System Language Discovery
    • Modifies Internet Explorer settings
    PID:1644

Network

        MITRE ATT&CK Enterprise v16

        Replay Monitor

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        Downloads

        7z.exe
        • Path C:\Program Files\7-Zip\7z.exe
        • Size 340KB
        • SHA256 36ea54b3e353d16e2db90c662018913fa91c7f9db240b23e86b851e444008060
        • MD5 SHA1 SHA512 SSDEEP TLSH
        Submit Download

        RCXEE9A.tmp
        • Path C:\Program Files\Google\Chrome\Application\140.0.7339.81\Installer\RCXEE9A.tmp
        • Size 288KB
        • SHA256 81b03bd84b76df5feaadc5b38f0dfcc4b9e900d376d2d46e72728e523ce30824
        • MD5 SHA1 SHA512 SSDEEP TLSH
        Submit Download

        RCXEE9B.tmp
        • Path C:\Program Files\Google\Chrome\Application\140.0.7339.81\Installer\RCXEE9B.tmp
        • Size 288KB
        • SHA256 10b0b573b44a2df7be631b6fc85a614f42854002d8d5e3ca79b3adb510364a88
        • MD5 SHA1 SHA512 SSDEEP TLSH
        Submit Download

        RCXEDA9.tmp
        • Path C:\Program Files\Google\Chrome\Application\RCXEDA9.tmp
        • Size 288KB
        • SHA256 3b3e5b61acdd091a965360a98eae03b99948f24637022dc1b5e4c1f0c552d4d0
        • MD5 SHA1 SHA512 SSDEEP TLSH
        Submit Download