Analysis

  • user interaction
    yes
  • max time kernel
    599s
  • max time network
    516s
  • platform
    windows11-ltsc_2024_x64
  • resource
    win11ltsc2024-20260617-en
  • resource tags

    arch:x64arch:x86image:win11ltsc2024-20260617-enlocale:en-usos:windows11-ltsc_2024-x64systemwindows
  • submitted
    29/06/2026, 10:33

General

  • Target
    Madium-Bootstrapper.exe
  • Size 6.9MB
  • Sample260629-mltvaaay8x
  • SHA256 1650251facc91ff98b7c710c9a3949ddcc1c91c08fd4c789ca0295be977c0b26
  • 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.

  • Checks whether UAC is enabled 1 TTPs 1 IoCs
  • Enumerates connected drives 3 TTPs 2 IoCs

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

  • Network Share Discovery 1 TTPs

    Attempt to gather information on host network.

  • Drops file in Windows directory 5 IoCs
  • Enumerates physical storage devices 1 TTPs

    Attempts to interact with connected storage/optical drive(s).

  • 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.

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

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

  • Enumerates system info in registry 2 TTPs 3 IoCs
  • Modifies Internet Explorer settings 1 TTPs 1 IoCs
  • Modifies registry class 38 IoCs
  • Suspicious behavior: EnumeratesProcesses 3 IoCs
  • Suspicious behavior: NtCreateUserProcessBlockNonMicrosoftBinary 1 IoCs
  • Suspicious use of AdjustPrivilegeToken 36 IoCs
  • Suspicious use of FindShellTrayWindow 54 IoCs
  • Suspicious use of SendNotifyMessage 40 IoCs
  • Suspicious use of SetWindowsHookEx 3 IoCs
  • Suspicious use of WriteProcessMemory 16 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-Bootstrapper.exe
    "C:\Users\Admin\AppData\Local\Temp\Madium-Bootstrapper.exe"
    1⤵
    • Checks whether UAC is enabled
    • Suspicious use of WriteProcessMemory
    PID:2616
    • C:\Program Files (x86)\Microsoft\EdgeWebView\Application\122.0.2365.106\msedgewebview2.exe
      "C:\Program Files (x86)\Microsoft\EdgeWebView\Application\122.0.2365.106\msedgewebview2.exe" --embedded-browser-webview=1 --webview-exe-name=Madium-Bootstrapper.exe --user-data-dir="C:\Users\Admin\AppData\Local\Temp\MadiumLottie-{17C9E9B6-7891-450A-BB35-2D8B8618E070}\wv2\EBWebView" --noerrdialogs --embedded-browser-webview-dpi-awareness=2 --enable-features=MojoIpcz --mojo-named-platform-channel-pipe=2616.5704.10472002904627731336 /pfhostedapp:11b1696ee5d8e5dbe69d3df87314e7d98972310b
      2⤵
      • Drops file in Windows directory
      • Enumerates system info in registry
      • Suspicious behavior: NtCreateUserProcessBlockNonMicrosoftBinary
      • Suspicious use of WriteProcessMemory
      PID:2400
      • C:\Program Files (x86)\Microsoft\EdgeWebView\Application\122.0.2365.106\msedgewebview2.exe
        "C:\Program Files (x86)\Microsoft\EdgeWebView\Application\122.0.2365.106\msedgewebview2.exe" --type=crashpad-handler --user-data-dir=C:\Users\Admin\AppData\Local\Temp\MadiumLottie-{17C9E9B6-7891-450A-BB35-2D8B8618E070}\wv2\EBWebView /prefetch:4 /pfhostedapp:11b1696ee5d8e5dbe69d3df87314e7d98972310b --monitor-self-annotation=ptype=crashpad-handler --database=C:\Users\Admin\AppData\Local\Temp\MadiumLottie-{17C9E9B6-7891-450A-BB35-2D8B8618E070}\wv2\EBWebView\Crashpad --annotation=IsOfficialBuild=1 --annotation=channel= --annotation=chromium-version=122.0.6261.139 "--annotation=exe=C:\Program Files (x86)\Microsoft\EdgeWebView\Application\122.0.2365.106\msedgewebview2.exe" --annotation=plat=Win64 "--annotation=prod=Edge WebView2" --annotation=ver=122.0.2365.106 --initial-client-data=0x194,0x198,0x19c,0x170,0x1a4,0x7ffa359a5fd8,0x7ffa359a5fe4,0x7ffa359a5ff0
        3⤵
          PID:4580
        • C:\Program Files (x86)\Microsoft\EdgeWebView\Application\122.0.2365.106\msedgewebview2.exe
          "C:\Program Files (x86)\Microsoft\EdgeWebView\Application\122.0.2365.106\msedgewebview2.exe" --type=gpu-process --noerrdialogs --user-data-dir="C:\Users\Admin\AppData\Local\Temp\MadiumLottie-{17C9E9B6-7891-450A-BB35-2D8B8618E070}\wv2\EBWebView" --webview-exe-name=Madium-Bootstrapper.exe --embedded-browser-webview=1 --embedded-browser-webview-dpi-awareness=2 --no-appcompat-clear --gpu-preferences=WAAAAAAAAADgAAAMAAAAAAAAAAAAAAAAAABgAAAAAAA4AAAAAAAAAAAAAAAEAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAGAAAAAAAAAAYAAAAAAAAAAgAAAAAAAAACAAAAAAAAAAIAAAAAAAAAA== --mojo-platform-channel-handle=1696 --field-trial-handle=1772,i,5465081869191067158,11901242679223021505,262144 --enable-features=MojoIpcz --variations-seed-version /prefetch:2 /pfhostedapp:11b1696ee5d8e5dbe69d3df87314e7d98972310b
          3⤵
            PID:2068
          • C:\Program Files (x86)\Microsoft\EdgeWebView\Application\122.0.2365.106\msedgewebview2.exe
            "C:\Program Files (x86)\Microsoft\EdgeWebView\Application\122.0.2365.106\msedgewebview2.exe" --type=utility --utility-sub-type=network.mojom.NetworkService --lang=en-US --service-sandbox-type=none --noerrdialogs --user-data-dir="C:\Users\Admin\AppData\Local\Temp\MadiumLottie-{17C9E9B6-7891-450A-BB35-2D8B8618E070}\wv2\EBWebView" --webview-exe-name=Madium-Bootstrapper.exe --embedded-browser-webview=1 --embedded-browser-webview-dpi-awareness=2 --no-appcompat-clear --mojo-platform-channel-handle=2248 --field-trial-handle=1772,i,5465081869191067158,11901242679223021505,262144 --enable-features=MojoIpcz --variations-seed-version /prefetch:3 /pfhostedapp:11b1696ee5d8e5dbe69d3df87314e7d98972310b
            3⤵
              PID:3704
            • C:\Program Files (x86)\Microsoft\EdgeWebView\Application\122.0.2365.106\msedgewebview2.exe
              "C:\Program Files (x86)\Microsoft\EdgeWebView\Application\122.0.2365.106\msedgewebview2.exe" --type=utility --utility-sub-type=storage.mojom.StorageService --lang=en-US --service-sandbox-type=service --noerrdialogs --user-data-dir="C:\Users\Admin\AppData\Local\Temp\MadiumLottie-{17C9E9B6-7891-450A-BB35-2D8B8618E070}\wv2\EBWebView" --webview-exe-name=Madium-Bootstrapper.exe --embedded-browser-webview=1 --embedded-browser-webview-dpi-awareness=2 --no-appcompat-clear --mojo-platform-channel-handle=2392 --field-trial-handle=1772,i,5465081869191067158,11901242679223021505,262144 --enable-features=MojoIpcz --variations-seed-version /prefetch:8 /pfhostedapp:11b1696ee5d8e5dbe69d3df87314e7d98972310b
              3⤵
                PID:2156
              • C:\Program Files (x86)\Microsoft\EdgeWebView\Application\122.0.2365.106\msedgewebview2.exe
                "C:\Program Files (x86)\Microsoft\EdgeWebView\Application\122.0.2365.106\msedgewebview2.exe" --type=renderer --noerrdialogs --user-data-dir="C:\Users\Admin\AppData\Local\Temp\MadiumLottie-{17C9E9B6-7891-450A-BB35-2D8B8618E070}\wv2\EBWebView" --webview-exe-name=Madium-Bootstrapper.exe --embedded-browser-webview=1 --embedded-browser-webview-dpi-awareness=2 --no-appcompat-clear --lang=en-US --device-scale-factor=1 --num-raster-threads=4 --enable-main-frame-before-activation --renderer-client-id=5 --js-flags="--harmony-weak-refs-with-cleanup-some --expose-gc --ms-user-locale=" --mojo-platform-channel-handle=3496 --field-trial-handle=1772,i,5465081869191067158,11901242679223021505,262144 --enable-features=MojoIpcz --variations-seed-version /pfhostedapp:11b1696ee5d8e5dbe69d3df87314e7d98972310b /prefetch:1
                3⤵
                  PID:1620
            • C:\Windows\system32\sihost.exe
              sihost.exe
              1⤵
              • Suspicious use of FindShellTrayWindow
              • Suspicious use of WriteProcessMemory
              PID:3168
              • 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:4144
            • 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:1732
            • 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:5156
            • C:\Windows\System32\oobe\UserOOBEBroker.exe
              C:\Windows\System32\oobe\UserOOBEBroker.exe -Embedding
              1⤵
              • Drops file in Windows directory
              PID:5724
            • C:\Users\Admin\AppData\Local\Microsoft\OneDrive\18.151.0729.0013\FileCoAuth.exe
              C:\Users\Admin\AppData\Local\Microsoft\OneDrive\18.151.0729.0013\FileCoAuth.exe -Embedding
              1⤵
              • System Location Discovery: System Language Discovery
              PID:5224

            Network

                  MITRE ATT&CK Enterprise v16

                  Replay Monitor

                  Loading Replay Monitor...

                  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 599B
                  • SHA256 b536a3dae9ea5c69081f0491eed829e3b57e32401fdf49a63031bcd6b20e6fdb
                  • MD5 SHA1 SHA512 TLSH

                  settings.dat

                  • Path C:\Users\Admin\AppData\Local\Temp\MadiumLottie-{17C9E9B6-7891-450A-BB35-2D8B8618E070}\wv2\EBWebView\Crashpad\settings.dat
                  • Size 280B
                  • SHA256 41b1aeeddd50fe6447de583e3020ac3bfca72c137aaa8842e501dc77655132c1
                  • MD5 SHA1 SHA512 TLSH

                  settings.dat

                  • Path C:\Users\Admin\AppData\Local\Temp\MadiumLottie-{17C9E9B6-7891-450A-BB35-2D8B8618E070}\wv2\EBWebView\Crashpad\settings.dat
                  • Size 280B
                  • SHA256 f516b06e604cb668a38d678abbaee5f26252d2441804cebda3fb00bbb545d062
                  • MD5 SHA1 SHA512

                  throttle_store.dat

                  • Path C:\Users\Admin\AppData\Local\Temp\MadiumLottie-{17C9E9B6-7891-450A-BB35-2D8B8618E070}\wv2\EBWebView\Crashpad\throttle_store.dat
                  • Size 20B
                  • SHA256 41c91a9c93d76295746a149dce7ebb3b9ee2cb551d84365fff108e59a61cc304
                  • MD5 SHA1 SHA512

                  2eb427e0-5a78-401d-bda9-76f173f27a59.tmp

                  • Path C:\Users\Admin\AppData\Local\Temp\MadiumLottie-{17C9E9B6-7891-450A-BB35-2D8B8618E070}\wv2\EBWebView\Default\2eb427e0-5a78-401d-bda9-76f173f27a59.tmp
                  • Size 5KB
                  • SHA256 28cb5bdaf2897db0bea5cc010dc71523aa9df011890e4debbc06de18ce4aa64f
                  • MD5 SHA1 SHA512 SSDEEP TLSH

                  Network Persistent State

                  • Path C:\Users\Admin\AppData\Local\Temp\MadiumLottie-{17C9E9B6-7891-450A-BB35-2D8B8618E070}\wv2\EBWebView\Default\Network\Network Persistent State
                  • Size 111B
                  • SHA256 5dfc321417fc31359f23320ea68014ebfd793c5bbed55f77dab4180bbd4a2026
                  • MD5 SHA1 SHA512 TLSH

                  Network Persistent State~RFe595a4b.TMP

                  • Path C:\Users\Admin\AppData\Local\Temp\MadiumLottie-{17C9E9B6-7891-450A-BB35-2D8B8618E070}\wv2\EBWebView\Default\Network\Network Persistent State~RFe595a4b.TMP
                  • Size 59B
                  • SHA256 226eec4486509917aa336afebd6ff65777b75b65f1fb06891d2a857a9421a974
                  • MD5 SHA1 SHA512 TLSH

                  SCT Auditing Pending Reports

                  • Path C:\Users\Admin\AppData\Local\Temp\MadiumLottie-{17C9E9B6-7891-450A-BB35-2D8B8618E070}\wv2\EBWebView\Default\Network\SCT Auditing Pending Reports
                  • Size 2B
                  • SHA256 4f53cda18c2baa0c0354bb5f9a3ecbe5ed12ab4d8e11ba873c2f11161202b945
                  • MD5 SHA1 SHA512

                  CURRENT

                  • Path C:\Users\Admin\AppData\Local\Temp\MadiumLottie-{17C9E9B6-7891-450A-BB35-2D8B8618E070}\wv2\EBWebView\Default\Site Characteristics Database\CURRENT
                  • Size 16B
                  • SHA256 0f1bad70c7bd1e0a69562853ec529355462fcd0423263a3d39d6d0d70b780443
                  • MD5 SHA1 SHA512

                  MANIFEST-000001

                  • Path C:\Users\Admin\AppData\Local\Temp\MadiumLottie-{17C9E9B6-7891-450A-BB35-2D8B8618E070}\wv2\EBWebView\Default\Site Characteristics Database\MANIFEST-000001
                  • Size 41B
                  • SHA256 f9d31b278e215eb0d0e9cd709edfa037e828f36214ab7906f612160fead4b2b4
                  • MD5 SHA1 SHA512

                  data_0

                  • Path C:\Users\Admin\AppData\Local\Temp\MadiumLottie-{17C9E9B6-7891-450A-BB35-2D8B8618E070}\wv2\EBWebView\GraphiteDawnCache\data_0
                  • Size 8KB
                  • SHA256 d6a5fe39cd672781b256e0e3102f7022635f1d4bb7cfcc90a80fffe4d0f3877e
                  • MD5 SHA1 SHA512 SSDEEP

                  data_1

                  • Path C:\Users\Admin\AppData\Local\Temp\MadiumLottie-{17C9E9B6-7891-450A-BB35-2D8B8618E070}\wv2\EBWebView\GraphiteDawnCache\data_1
                  • Size 264KB
                  • SHA256 902f30c1fb0597d0734bc34b979ec5d131f8f39a4b71b338083821216ec8d61b
                  • MD5 SHA1 SHA512 SSDEEP

                  data_2

                  • Path C:\Users\Admin\AppData\Local\Temp\MadiumLottie-{17C9E9B6-7891-450A-BB35-2D8B8618E070}\wv2\EBWebView\GraphiteDawnCache\data_2
                  • Size 8KB
                  • SHA256 ec1702806f4cc7c42a82fc2b38e89835fde7c64bb32060e0823c9077ca92efb7
                  • MD5 SHA1 SHA512 SSDEEP

                  data_3

                  • Path C:\Users\Admin\AppData\Local\Temp\MadiumLottie-{17C9E9B6-7891-450A-BB35-2D8B8618E070}\wv2\EBWebView\GraphiteDawnCache\data_3
                  • Size 8KB
                  • SHA256 e09f42c398d688dce168570291f1f92d079987deda3099a34adb9e8c0522b30c
                  • MD5 SHA1 SHA512 SSDEEP

                  Local State

                  • Path C:\Users\Admin\AppData\Local\Temp\MadiumLottie-{17C9E9B6-7891-450A-BB35-2D8B8618E070}\wv2\EBWebView\Local State
                  • Size 3KB
                  • SHA256 70ccb9297482fc8bdc7350b8828e3341e8c0437d3ade3e5f07f249dc8fe03c2d
                  • MD5 SHA1 SHA512 TLSH

                  Local State

                  • Path C:\Users\Admin\AppData\Local\Temp\MadiumLottie-{17C9E9B6-7891-450A-BB35-2D8B8618E070}\wv2\EBWebView\Local State
                  • Size 2KB
                  • SHA256 c9e3ac364eb58549f9b0d71847b40b62b26b4deaf267dd7a0823cc51ae6dc094
                  • MD5 SHA1 SHA512 TLSH

                  Local State

                  • Path C:\Users\Admin\AppData\Local\Temp\MadiumLottie-{17C9E9B6-7891-450A-BB35-2D8B8618E070}\wv2\EBWebView\Local State
                  • Size 3KB
                  • SHA256 92878202fba559392d2228d97f2a9ff142088336892d75d1237a83d3ab0d0a0b
                  • MD5 SHA1 SHA512 TLSH

                  Local State

                  • Path C:\Users\Admin\AppData\Local\Temp\MadiumLottie-{17C9E9B6-7891-450A-BB35-2D8B8618E070}\wv2\EBWebView\Local State
                  • Size 3KB
                  • SHA256 2a9231c13d8b757c7df28b99ac690c4312f89930870b24e03ec131b757239a9f
                  • MD5 SHA1 SHA512 TLSH

                  Local State~RFe58fe50.TMP

                  • Path C:\Users\Admin\AppData\Local\Temp\MadiumLottie-{17C9E9B6-7891-450A-BB35-2D8B8618E070}\wv2\EBWebView\Local State~RFe58fe50.TMP
                  • Size 1KB
                  • SHA256 72d12b9bb464a54804e0141f5e7c8c92944c83564c2f3ec57661dbfa6d8c62b0
                  • MD5 SHA1 SHA512 TLSH

                  memory/1620-106-0x00007FFA56CE0000-0x00007FFA56CE1000-memory.dmp

                  memory/1732-361-0x0000026C03C70000-0x0000026C03C90000-memory.dmp

                  memory/1732-352-0x0000026C001E0000-0x0000026C002E0000-memory.dmp

                  memory/1732-373-0x0000026C03CB0000-0x0000026C03CD0000-memory.dmp

                  memory/1732-397-0x0000026C15250000-0x0000026C15270000-memory.dmp

                  memory/1732-363-0x0000026C03E70000-0x0000026C03F70000-memory.dmp

                  memory/2068-30-0x00007FFA56CE0000-0x00007FFA56CE1000-memory.dmp

                  memory/4144-518-0x000000000DDA0000-0x000000000E61B000-memory.dmp

                  memory/4144-564-0x000000000DDA0000-0x000000000E61B000-memory.dmp

                  memory/5156-520-0x0000019400000000-0x00000194002BC000-memory.dmp

                  memory/5156-535-0x0000019400000000-0x00000194002BC000-memory.dmp