Analysis

  • max time kernel
    149s
  • max time network
    127s
  • 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, 03:17

General

  • Target
    Madium-Bootstrapper.exe
  • Size 6.9MB
  • Sample260702-dthybabv3y
  • 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 1 IoCs
  • Enumerates physical storage devices 1 TTPs

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

  • 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 2 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:4296
    • 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-{4CB09E10-B6BA-4017-A043-34A1961D19A8}\wv2\EBWebView" --noerrdialogs --embedded-browser-webview-dpi-awareness=2 --enable-features=MojoIpcz --mojo-named-platform-channel-pipe=4296.2928.17209762241057484692 /pfhostedapp:3522f30ff3e528fe9a9c345a7e95dfbff4a4c580
      2⤵
      • Drops file in Windows directory
      • Enumerates system info in registry
      • Suspicious behavior: NtCreateUserProcessBlockNonMicrosoftBinary
      • Suspicious use of WriteProcessMemory
      PID:4448
      • 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-{4CB09E10-B6BA-4017-A043-34A1961D19A8}\wv2\EBWebView /prefetch:4 /pfhostedapp:3522f30ff3e528fe9a9c345a7e95dfbff4a4c580 --monitor-self-annotation=ptype=crashpad-handler --database=C:\Users\Admin\AppData\Local\Temp\MadiumLottie-{4CB09E10-B6BA-4017-A043-34A1961D19A8}\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=0x188,0x18c,0x190,0x184,0x160,0x7ffdaf965fd8,0x7ffdaf965fe4,0x7ffdaf965ff0
        3⤵
          PID:1764
        • 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-{4CB09E10-B6BA-4017-A043-34A1961D19A8}\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=1716 --field-trial-handle=1720,i,910575713360506744,18382644272804495513,262144 --enable-features=MojoIpcz --variations-seed-version /prefetch:2 /pfhostedapp:3522f30ff3e528fe9a9c345a7e95dfbff4a4c580
          3⤵
            PID:1652
          • 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-{4CB09E10-B6BA-4017-A043-34A1961D19A8}\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=2180 --field-trial-handle=1720,i,910575713360506744,18382644272804495513,262144 --enable-features=MojoIpcz --variations-seed-version /prefetch:3 /pfhostedapp:3522f30ff3e528fe9a9c345a7e95dfbff4a4c580
            3⤵
              PID:5336
            • 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-{4CB09E10-B6BA-4017-A043-34A1961D19A8}\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=2420 --field-trial-handle=1720,i,910575713360506744,18382644272804495513,262144 --enable-features=MojoIpcz --variations-seed-version /prefetch:8 /pfhostedapp:3522f30ff3e528fe9a9c345a7e95dfbff4a4c580
              3⤵
                PID:5324
              • 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-{4CB09E10-B6BA-4017-A043-34A1961D19A8}\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=3536 --field-trial-handle=1720,i,910575713360506744,18382644272804495513,262144 --enable-features=MojoIpcz --variations-seed-version /pfhostedapp:3522f30ff3e528fe9a9c345a7e95dfbff4a4c580 /prefetch:1
                3⤵
                  PID:1336
            • C:\Windows\system32\sihost.exe
              sihost.exe
              1⤵
              • Suspicious use of FindShellTrayWindow
              • Suspicious use of WriteProcessMemory
              PID:1672
              • 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:3872
            • 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:620
            • 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:5592

            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 599B
                  • SHA256 b536a3dae9ea5c69081f0491eed829e3b57e32401fdf49a63031bcd6b20e6fdb
                  • MD5 SHA1 SHA512 TLSH

                  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 595B
                  • SHA256 d4e60617c2afab8263febabe7f14f18595715078d71307a8cefe0707dae76dee
                  • MD5 SHA1 SHA512 TLSH

                  settings.dat

                  • Path C:\Users\Admin\AppData\Local\Temp\MadiumLottie-{4CB09E10-B6BA-4017-A043-34A1961D19A8}\wv2\EBWebView\Crashpad\settings.dat
                  • Size 280B
                  • SHA256 4edbf95344a84599a0943abc9cebe3c89ebdd301687c37e195b9030b30c0d52b
                  • MD5 SHA1 SHA512 TLSH

                  settings.dat

                  • Path C:\Users\Admin\AppData\Local\Temp\MadiumLottie-{4CB09E10-B6BA-4017-A043-34A1961D19A8}\wv2\EBWebView\Crashpad\settings.dat
                  • Size 280B
                  • SHA256 6f29496ea0d112a5e96906eda4b5cbcccdc2419fa077b18e33dca65f79b85ff3
                  • MD5 SHA1 SHA512 TLSH

                  settings.dat

                  • Path C:\Users\Admin\AppData\Local\Temp\MadiumLottie-{4CB09E10-B6BA-4017-A043-34A1961D19A8}\wv2\EBWebView\Crashpad\settings.dat
                  • Size 280B
                  • SHA256 3d1d83b0ceb80b6254b0206829d488f467fae86ca78d7c53f0610b525b1707b3
                  • MD5 SHA1 SHA512

                  throttle_store.dat

                  • Path C:\Users\Admin\AppData\Local\Temp\MadiumLottie-{4CB09E10-B6BA-4017-A043-34A1961D19A8}\wv2\EBWebView\Crashpad\throttle_store.dat
                  • Size 20B
                  • SHA256 41c91a9c93d76295746a149dce7ebb3b9ee2cb551d84365fff108e59a61cc304
                  • MD5 SHA1 SHA512

                  CURRENT

                  • Path C:\Users\Admin\AppData\Local\Temp\MadiumLottie-{4CB09E10-B6BA-4017-A043-34A1961D19A8}\wv2\EBWebView\Default\Extension Rules\CURRENT
                  • Size 16B
                  • SHA256 0f1bad70c7bd1e0a69562853ec529355462fcd0423263a3d39d6d0d70b780443
                  • MD5 SHA1 SHA512

                  MANIFEST-000001

                  • Path C:\Users\Admin\AppData\Local\Temp\MadiumLottie-{4CB09E10-B6BA-4017-A043-34A1961D19A8}\wv2\EBWebView\Default\Extension Scripts\MANIFEST-000001
                  • Size 41B
                  • SHA256 f9d31b278e215eb0d0e9cd709edfa037e828f36214ab7906f612160fead4b2b4
                  • MD5 SHA1 SHA512

                  SCT Auditing Pending Reports

                  • Path C:\Users\Admin\AppData\Local\Temp\MadiumLottie-{4CB09E10-B6BA-4017-A043-34A1961D19A8}\wv2\EBWebView\Default\Network\SCT Auditing Pending Reports
                  • Size 2B
                  • SHA256 4f53cda18c2baa0c0354bb5f9a3ecbe5ed12ab4d8e11ba873c2f11161202b945
                  • MD5 SHA1 SHA512

                  data_0

                  • Path C:\Users\Admin\AppData\Local\Temp\MadiumLottie-{4CB09E10-B6BA-4017-A043-34A1961D19A8}\wv2\EBWebView\GraphiteDawnCache\data_0
                  • Size 8KB
                  • SHA256 d6a5fe39cd672781b256e0e3102f7022635f1d4bb7cfcc90a80fffe4d0f3877e
                  • MD5 SHA1 SHA512 SSDEEP

                  data_1

                  • Path C:\Users\Admin\AppData\Local\Temp\MadiumLottie-{4CB09E10-B6BA-4017-A043-34A1961D19A8}\wv2\EBWebView\GraphiteDawnCache\data_1
                  • Size 264KB
                  • SHA256 902f30c1fb0597d0734bc34b979ec5d131f8f39a4b71b338083821216ec8d61b
                  • MD5 SHA1 SHA512 SSDEEP

                  data_2

                  • Path C:\Users\Admin\AppData\Local\Temp\MadiumLottie-{4CB09E10-B6BA-4017-A043-34A1961D19A8}\wv2\EBWebView\GraphiteDawnCache\data_2
                  • Size 8KB
                  • SHA256 ec1702806f4cc7c42a82fc2b38e89835fde7c64bb32060e0823c9077ca92efb7
                  • MD5 SHA1 SHA512 SSDEEP

                  data_3

                  • Path C:\Users\Admin\AppData\Local\Temp\MadiumLottie-{4CB09E10-B6BA-4017-A043-34A1961D19A8}\wv2\EBWebView\GraphiteDawnCache\data_3
                  • Size 8KB
                  • SHA256 e09f42c398d688dce168570291f1f92d079987deda3099a34adb9e8c0522b30c
                  • MD5 SHA1 SHA512 SSDEEP

                  Local State

                  • Path C:\Users\Admin\AppData\Local\Temp\MadiumLottie-{4CB09E10-B6BA-4017-A043-34A1961D19A8}\wv2\EBWebView\Local State
                  • Size 2KB
                  • SHA256 e0bf5ee7e3c033673160220baaa18ac25a8531b099d779b76d22a834b286463b
                  • MD5 SHA1 SHA512 TLSH

                  Local State

                  • Path C:\Users\Admin\AppData\Local\Temp\MadiumLottie-{4CB09E10-B6BA-4017-A043-34A1961D19A8}\wv2\EBWebView\Local State
                  • Size 3KB
                  • SHA256 2a8919321c0f54cea63240498338a5732ae525854aebca073ad3c835fc0acc28
                  • MD5 SHA1 SHA512 TLSH

                  Local State

                  • Path C:\Users\Admin\AppData\Local\Temp\MadiumLottie-{4CB09E10-B6BA-4017-A043-34A1961D19A8}\wv2\EBWebView\Local State
                  • Size 15KB
                  • SHA256 15daa323b9753cd35fc948dd05e853f5917376ae8141cd0df64bd38c13181b7c
                  • MD5 SHA1 SHA512 SSDEEP TLSH

                  Local State~RFe591da0.TMP

                  • Path C:\Users\Admin\AppData\Local\Temp\MadiumLottie-{4CB09E10-B6BA-4017-A043-34A1961D19A8}\wv2\EBWebView\Local State~RFe591da0.TMP
                  • Size 1KB
                  • SHA256 f8c2d52ae88321eb6cde4734b4c6fec5eff324a2d98b9da857b71a15d140528a
                  • MD5 SHA1 SHA512 TLSH

                  Madium.lnk

                  • Path C:\Users\Admin\Desktop\Madium.lnk
                  • Size 1KB
                  • SHA256 6ae948cf7ac577cece70697a9ad687b137f38ecc4d2b6d734444cbe74caef779
                  • MD5 SHA1 SHA512 TLSH

                  memory/620-328-0x000001FA001E0000-0x000001FA002E0000-memory.dmp

                  memory/620-351-0x000001FA03C90000-0x000001FA03CB0000-memory.dmp

                  memory/620-374-0x000001FA14210000-0x000001FA14230000-memory.dmp

                  memory/620-340-0x000001FA13E70000-0x000001FA13F70000-memory.dmp

                  memory/620-339-0x000001FA03A30000-0x000001FA03A50000-memory.dmp

                  memory/1336-306-0x000001F756DB0000-0x000001F756E86000-memory.dmp

                  memory/1336-123-0x00007FFDD1250000-0x00007FFDD1251000-memory.dmp

                  memory/1652-305-0x000001AE99000000-0x000001AE990D6000-memory.dmp

                  memory/1652-28-0x00007FFDD1250000-0x00007FFDD1251000-memory.dmp

                  memory/3872-490-0x000000000D550000-0x000000000DDCB000-memory.dmp