Analysis

  • max time kernel
    149s
  • max time network
    142s
  • platform
    windows11-ltsc_2024_x64
  • resource
    win11ltsc2024-20260629-en
  • resource tags

    arch:x64arch:x86image:win11ltsc2024-20260629-enlocale:en-usos:windows11-ltsc_2024-x64systemwindows
  • submitted
    02/07/2026, 15:22

General

  • Target
    Madium/Madium-Installer.exe
  • Size 843KB
  • Sample260702-ssbvyagy7x
  • SHA256 5d48d810f20c0de47ccfc2e4abd74777f7540620b9b5e5c3057b45ab238ed23f
  • MD5 SHA1 SHA512 SSDEEP TLSH

Malware Config

Signatures

  • 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.

  • Contacts third-party web service commonly abused for C2 1 TTPs 2 IoCs

    Legitimate web (hosting) services can be abused by malware authors to host malware or C2s.

  • Enumerates connected drives 3 TTPs 2 IoCs

    Attempts to read the root path of hard drives other than the default C: drive.

  • 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
  • Modifies registry class 38 IoCs
  • Suspicious behavior: EnumeratesProcesses 2 IoCs
  • Suspicious use of AdjustPrivilegeToken 45 IoCs
  • Suspicious use of FindShellTrayWindow 54 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.

  • Uses Volume Shadow Copy WMI provider

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

  • Uses Volume Shadow Copy service COM API

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

Processes

  • C:\Users\Admin\AppData\Local\Temp\Madium\Madium-Installer.exe
    "C:\Users\Admin\AppData\Local\Temp\Madium\Madium-Installer.exe"
    1⤵
    • Suspicious use of AdjustPrivilegeToken
    PID:5448
  • C:\Windows\system32\sihost.exe
    sihost.exe
    1⤵
    • Suspicious use of FindShellTrayWindow
    • Suspicious use of WriteProcessMemory
    PID:1852
    • 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:4832
  • 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:1444
  • 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:1476

Network

        MITRE ATT&CK Enterprise v16

        Replay Monitor

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        Downloads

        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 607B
        • SHA256 be6b74e52e5eef1f1c27c0976bf3bf1bfa99958c00bbef2898a602f691be6dae
        • MD5 SHA1 SHA512 TLSH

        memory/1444-79-0x00000202146A0000-0x00000202146C0000-memory.dmp

        memory/1444-46-0x0000020203E50000-0x0000020203F50000-memory.dmp

        memory/1444-65-0x0000020203C90000-0x0000020203CB0000-memory.dmp

        memory/1444-43-0x0000020203A30000-0x0000020203A50000-memory.dmp

        memory/1444-35-0x00000202001E0000-0x00000202002E0000-memory.dmp

        memory/4832-201-0x000000000DF40000-0x000000000E7BB000-memory.dmp

        memory/5448-5-0x000000001E210000-0x000000001E3D2000-memory.dmp

        memory/5448-8-0x00007FFEBABD0000-0x00007FFEBB574000-memory.dmp

        memory/5448-9-0x00007FFEBABD0000-0x00007FFEBB574000-memory.dmp

        memory/5448-10-0x00007FFEBABD0000-0x00007FFEBB574000-memory.dmp

        memory/5448-11-0x00007FFEBABD0000-0x00007FFEBB574000-memory.dmp

        memory/5448-12-0x00007FFEBABD0000-0x00007FFEBB574000-memory.dmp

        memory/5448-7-0x00007FFEBABD0000-0x00007FFEBB574000-memory.dmp

        memory/5448-6-0x00007FFEBABD0000-0x00007FFEBB574000-memory.dmp

        memory/5448-0-0x00007FFEBAD5F000-0x00007FFEBAD60000-memory.dmp

        memory/5448-4-0x00007FFEBABD0000-0x00007FFEBB574000-memory.dmp

        memory/5448-3-0x00007FFEBABD0000-0x00007FFEBB574000-memory.dmp

        memory/5448-2-0x00007FFEBABD0000-0x00007FFEBB574000-memory.dmp

        memory/5448-1-0x00000000008B0000-0x0000000000988000-memory.dmp