Overview

overview

10

Static

static

10

2026-07-04...ys.exe

windows10-2004-x64

10

2026-07-04...ys.exe

windows11-ltsc_2024-x64

10

Analysis

  • max time kernel
    148s
  • max time network
    151s
  • platform
    windows11-ltsc_2024_x64
  • resource
    win11ltsc2024-20260629-en
  • resource tags

    arch:x64arch:x86image:win11ltsc2024-20260629-enlocale:en-usos:windows11-ltsc_2024-x64systemwindows
  • submitted
    04/07/2026, 04:07

Sharing

Copy URL Twitter E-mail
Report Analysis Logs

General

  • Target
    2026-07-04_9c759fc4fc1811e54ab6025d2f6e088e_cobalt-strike_elex_icedid_njrat_rhadamanthys.exe
  • Size 415KB
  • Sample260704-eps36aax8w
  • SHA256 5ab62e4ba66b27af224af1e4d3f50076794bd7f6a793e4ba9c219fdf12b16802
  • MD5 SHA1 SHA512 SSDEEP TLSH
Score
10/10
adwarediscoverycosmupersistenceransomwarespywareworm

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++.

  • Boot or Logon Autostart Execution: Active Setup 2 TTPs 1 IoCs

    Adversaries may achieve persistence by adding a Registry key to the Active Setup of the local machine.

    persistence
  • Enumerates connected drives 3 TTPs 12 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.

    discovery
  • Checks SCSI registry key(s) 3 TTPs 62 IoCs

    SCSI information is often read in order to detect sandboxing environments.

  • Modifies Internet Explorer settings 1 TTPs 1 IoCs
    adwarespyware
  • Modifies registry class 40 IoCs
  • Suspicious behavior: EnumeratesProcesses 2 IoCs
  • Suspicious use of AdjustPrivilegeToken 36 IoCs
  • Suspicious use of FindShellTrayWindow 53 IoCs
  • Suspicious use of SendNotifyMessage 40 IoCs
  • Suspicious use of SetWindowsHookEx 3 IoCs
  • Suspicious use of WriteProcessMemory 1 IoCs
  • Uses Task Scheduler COM API 1 TTPs

    The Task Scheduler COM API can be used to schedule applications to run on boot or at set times.

    persistence
  • Uses Volume Shadow Copy WMI provider

    The Volume Shadow Copy service is used to manage backups/snapshots.

    ransomware
  • Uses Volume Shadow Copy service COM API

    The Volume Shadow Copy service is used to manage backups/snapshots.

    ransomware

Processes

  • C:\Users\Admin\AppData\Local\Temp\2026-07-04_9c759fc4fc1811e54ab6025d2f6e088e_cobalt-strike_elex_icedid_njrat_rhadamanthys.exe
    "C:\Users\Admin\AppData\Local\Temp\2026-07-04_9c759fc4fc1811e54ab6025d2f6e088e_cobalt-strike_elex_icedid_njrat_rhadamanthys.exe"
    1⤵
    • Enumerates connected drives
    • Drops file in Program Files directory
    • System Location Discovery: System Language Discovery
    PID:4904
  • C:\Windows\system32\sihost.exe
    sihost.exe
    1⤵
    • Suspicious use of FindShellTrayWindow
    • Suspicious use of WriteProcessMemory
    PID:3712
    • C:\Windows\explorer.exe
      explorer.exe /LOADSAVEDWINDOWS
      2⤵
      • Boot or Logon Autostart Execution: Active Setup
      • Enumerates connected drives
      • Checks SCSI registry key(s)
      • Modifies Internet Explorer settings
      • Modifies registry class
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      • Suspicious use of FindShellTrayWindow
      • Suspicious use of SendNotifyMessage
      • Suspicious use of SetWindowsHookEx
      PID:4976
  • C:\Windows\SystemApps\MicrosoftWindows.Client.CBS_cw5n1h2txyewy\SearchHost.exe
    "C:\Windows\SystemApps\MicrosoftWindows.Client.CBS_cw5n1h2txyewy\SearchHost.exe" -ServerName:CortanaUI.AppXstmwaab17q5s3y22tp6apqz7a45vwv65.mca
    1⤵
    • Modifies registry class
    • Suspicious use of SetWindowsHookEx
    PID:4840
  • C:\Windows\SystemApps\Microsoft.Windows.StartMenuExperienceHost_cw5n1h2txyewy\StartMenuExperienceHost.exe
    "C:\Windows\SystemApps\Microsoft.Windows.StartMenuExperienceHost_cw5n1h2txyewy\StartMenuExperienceHost.exe" -ServerName:App.AppXywbrabmsek0gm3tkwpr5kwzbs55tkqay.mca
    1⤵
    • Modifies registry class
    • Suspicious use of SetWindowsHookEx
    PID:2636
  • C:\Windows\system32\svchost.exe
    C:\Windows\system32\svchost.exe -k GPSvcGroup
    1⤵
      PID:4232

    Network

          MITRE ATT&CK Enterprise v16

          Replay Monitor

          Loading Replay Monitor...

          Downloads

          7z.exe
          • Path C:\Program Files\7-Zip\7z.exe
          • Size 402KB
          • SHA256 7ed94d70d86cfc64f46e70915b7465b04afac711845a118effb0fa9ce73e3486
          • MD5 SHA1 SHA512 SSDEEP TLSH
          Submit Download

          RCX50C9.tmp
          • Path C:\Program Files\Google\Chrome\Application\RCX50C9.tmp
          • Size 360KB
          • SHA256 9b8f910860740e43ba1f965b0e874fa342bee7e514238d46ff5a29c7f06c8bc9
          • MD5 SHA1 SHA512 SSDEEP TLSH
          Submit Download

          chrome.exe
          • Path C:\Program Files\Google\Chrome\Application\chrome.exe
          • Size 1.5MB
          • SHA256 e9587081def910e882732f7d6d68aa82cc5864e96e043f2876e1322efd30d02c
          • MD5 SHA1 SHA512 SSDEEP TLSH
          Submit Download

          RCX5279.tmp
          • Path C:\Program Files\Java\jdk-1.8\bin\RCX5279.tmp
          • Size 360KB
          • SHA256 5fc94c797bcc55fc7670899b6cc49e88b2a31fdf40d9385fb01b4873efa5a6ce
          • MD5 SHA1 SHA512 SSDEEP TLSH
          Submit Download

          prep_Activatable Class_Hermes_perf.cache
          • Path C:\Users\Admin\AppData\Local\Packages\Microsoft.Windows.StartMenuExperienceHost_cw5n1h2txyewy\TempState\prep_Activatable Class_Hermes_perf.cache
          • Size 599B
          • SHA256 b536a3dae9ea5c69081f0491eed829e3b57e32401fdf49a63031bcd6b20e6fdb
          • MD5 SHA1 SHA512 TLSH
          Submit Download

          memory/2636-436-0x000001BF30B20000-0x000001BF30DBE000-memory.dmp
          Download

          memory/4840-302-0x0000023803A80000-0x0000023803AA0000-memory.dmp
          Download

          memory/4840-288-0x0000023813C80000-0x0000023813D80000-memory.dmp
          Download

          memory/4840-281-0x0000023803820000-0x0000023803840000-memory.dmp
          Download

          memory/4840-266-0x0000023800000000-0x0000023800100000-memory.dmp
          Download

          memory/4840-316-0x0000023814090000-0x00000238140B0000-memory.dmp
          Download

          memory/4840-435-0x0000023817980000-0x0000023817C1E000-memory.dmp
          Download

          memory/4840-268-0x0000023800000000-0x0000023800100000-memory.dmp
          Download

          memory/4976-434-0x000000000CEF0000-0x000000000CF83000-memory.dmp
          Download