Overview

overview

10

Static

static

10

2026-08-16...ys.exe

windows10-2004-x64

10

2026-08-16...ys.exe

windows11-ltsc_2024-x64

10

Analysis

  • max time kernel
    150s
  • max time network
    148s
  • platform
    windows11-ltsc_2024_x64
  • resource
    win11ltsc2024-20260709-en
  • resource tags

    arch:x64arch:x86image:win11ltsc2024-20260709-enlocale:en-usos:windows11-ltsc_2024-x64systemwindows
  • submitted
    16/08/2026, 01:52

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General

  • Target
    2026-08-16_c476075f1c2d11d14b2f722bdae67439_cobalt-strike_elex_icedid_njrat_rhadamanthys.exe
  • Size 828KB
  • Sample260816-cassqsxdrd
  • SHA256 36a4943d1b8ad9e88420e63c20772b473a23bd5a023894f1c0fc600843372a7f
  • 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 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.

  • 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\2026-08-16_c476075f1c2d11d14b2f722bdae67439_cobalt-strike_elex_icedid_njrat_rhadamanthys.exe
    "C:\Users\Admin\AppData\Local\Temp\2026-08-16_c476075f1c2d11d14b2f722bdae67439_cobalt-strike_elex_icedid_njrat_rhadamanthys.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:1780

Network

        MITRE ATT&CK Enterprise v16

        Replay Monitor

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        Downloads

        7z.exe
        • Path C:\Program Files\7-Zip\7z.exe
        • Size 828KB
        • SHA256 39239f6fcef129dc67e86340d8249b41b9e53846d22b4cd04c9706516ca407dc
        • MD5 SHA1 SHA512 SSDEEP TLSH
        Submit Download

        RCXF125.tmp
        • Path C:\Program Files\Google\Chrome\Application\RCXF125.tmp
        • Size 880KB
        • SHA256 a977793c4a378478e6b8acde138c4b528142d66750af94ca8ee131911dd2efb0
        • MD5 SHA1 SHA512 SSDEEP TLSH
        Submit Download

        chrome.exe
        • Path C:\Program Files\Google\Chrome\Application\chrome.exe
        • Size 880KB
        • SHA256 3d8cd05cb79f1a5eedcb9ae81c7d29681475901b14fc2903443f51724d807b8d
        • MD5 SHA1 SHA512 SSDEEP TLSH
        Submit Download

        RCXF352.tmp
        • Path C:\Program Files\Java\jdk-1.8\bin\RCXF352.tmp
        • Size 828KB
        • SHA256 2329bd110ed644142fa9b2a98d71e6bf2f903d68f578ee5cdabbd8b0d426ed72
        • MD5 SHA1 SHA512 SSDEEP TLSH
        Submit Download

        helper.exe
        • Path C:\Program Files\Mozilla Firefox\uninstall\helper.exe
        • Size 867KB
        • SHA256 28c2348784d99dea16975a8935a371b930b095deba6fc85fa6c1f4287c1b35b1
        • MD5 SHA1 SHA512 SSDEEP TLSH
        Submit Download