Resubmissions

08/07/2026, 10:35

260708-mm1dfsft8k8

08/07/2026, 10:27

260708-mg84eaet7x8

Analysis

  • user interaction
    yes
  • max time kernel
    148s
  • max time network
    121s
  • platform
    windows11-ltsc_2024_x64
  • resource
    win11ltsc2024-20260706-en
  • resource tags

    arch:x64arch:x86image:win11ltsc2024-20260706-enlocale:en-usos:windows11-ltsc_2024-x64systemwindows
  • submitted
    08/07/2026, 10:27

General

  • Target
    Madium-Bootstrapper.exe
  • Size 6.9MB
  • Sample260708-mg84eaet7x
  • 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 38 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:5760
    • 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-{42608B12-5CB8-4EBA-8AD5-BC14FEA19EA1}\wv2\EBWebView" --noerrdialogs --embedded-browser-webview-dpi-awareness=2 --enable-features=MojoIpcz --mojo-named-platform-channel-pipe=5760.4292.18000076265138108407 /pfhostedapp:57c41cab9d0e53514d442427719cd1473a4bcd48
      2⤵
      • Drops file in Windows directory
      • Enumerates system info in registry
      • Suspicious behavior: NtCreateUserProcessBlockNonMicrosoftBinary
      • Suspicious use of WriteProcessMemory
      PID:3748
      • 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-{42608B12-5CB8-4EBA-8AD5-BC14FEA19EA1}\wv2\EBWebView /prefetch:4 /pfhostedapp:57c41cab9d0e53514d442427719cd1473a4bcd48 --monitor-self-annotation=ptype=crashpad-handler --database=C:\Users\Admin\AppData\Local\Temp\MadiumLottie-{42608B12-5CB8-4EBA-8AD5-BC14FEA19EA1}\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=0x184,0x188,0x18c,0x140,0x194,0x7fffceee5fd8,0x7fffceee5fe4,0x7fffceee5ff0
        3⤵
          PID:3984
        • 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-{42608B12-5CB8-4EBA-8AD5-BC14FEA19EA1}\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=1680 --field-trial-handle=1764,i,17708276577902658514,18211598730750593147,262144 --enable-features=MojoIpcz --variations-seed-version /prefetch:2 /pfhostedapp:57c41cab9d0e53514d442427719cd1473a4bcd48
          3⤵
            PID:1264
          • 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-{42608B12-5CB8-4EBA-8AD5-BC14FEA19EA1}\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=2080 --field-trial-handle=1764,i,17708276577902658514,18211598730750593147,262144 --enable-features=MojoIpcz --variations-seed-version /prefetch:3 /pfhostedapp:57c41cab9d0e53514d442427719cd1473a4bcd48
            3⤵
              PID:464
            • 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-{42608B12-5CB8-4EBA-8AD5-BC14FEA19EA1}\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=2440 --field-trial-handle=1764,i,17708276577902658514,18211598730750593147,262144 --enable-features=MojoIpcz --variations-seed-version /prefetch:8 /pfhostedapp:57c41cab9d0e53514d442427719cd1473a4bcd48
              3⤵
                PID:4128
              • 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-{42608B12-5CB8-4EBA-8AD5-BC14FEA19EA1}\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=3460 --field-trial-handle=1764,i,17708276577902658514,18211598730750593147,262144 --enable-features=MojoIpcz --variations-seed-version /pfhostedapp:57c41cab9d0e53514d442427719cd1473a4bcd48 /prefetch:1
                3⤵
                  PID:4968
            • C:\Windows\system32\sihost.exe
              sihost.exe
              1⤵
              • Suspicious use of FindShellTrayWindow
              • Suspicious use of WriteProcessMemory
              PID:5720
              • 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:1288
            • 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:2852
            • 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:5932

            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 e70e850ae837c3ac89bbdc68a172455f14eaa909108dd2f94b137d842c6bb99e
                  • 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 599B
                  • SHA256 b536a3dae9ea5c69081f0491eed829e3b57e32401fdf49a63031bcd6b20e6fdb
                  • MD5 SHA1 SHA512 TLSH

                  settings.dat

                  • Path C:\Users\Admin\AppData\Local\Temp\MadiumLottie-{42608B12-5CB8-4EBA-8AD5-BC14FEA19EA1}\wv2\EBWebView\Crashpad\settings.dat
                  • Size 280B
                  • SHA256 f095fb3d7108598dc6c15dcb83f3a519cb68a8c0b67a3c2fb9c50ecd80959d32
                  • MD5 SHA1 SHA512 TLSH

                  settings.dat

                  • Path C:\Users\Admin\AppData\Local\Temp\MadiumLottie-{42608B12-5CB8-4EBA-8AD5-BC14FEA19EA1}\wv2\EBWebView\Crashpad\settings.dat
                  • Size 280B
                  • SHA256 7dd9c865c513d9f879138b68bd781ea17e6abab5676e67ceb6cb41ec20f55a2c
                  • MD5 SHA1 SHA512 TLSH

                  settings.dat

                  • Path C:\Users\Admin\AppData\Local\Temp\MadiumLottie-{42608B12-5CB8-4EBA-8AD5-BC14FEA19EA1}\wv2\EBWebView\Crashpad\settings.dat
                  • Size 280B
                  • SHA256 f8e8364c4f8e4628943c7e6ae1037847fe0b2a938e159b81d278df67aa05daf7
                  • MD5 SHA1 SHA512

                  throttle_store.dat

                  • Path C:\Users\Admin\AppData\Local\Temp\MadiumLottie-{42608B12-5CB8-4EBA-8AD5-BC14FEA19EA1}\wv2\EBWebView\Crashpad\throttle_store.dat
                  • Size 20B
                  • SHA256 41c91a9c93d76295746a149dce7ebb3b9ee2cb551d84365fff108e59a61cc304
                  • MD5 SHA1 SHA512

                  SCT Auditing Pending Reports

                  • Path C:\Users\Admin\AppData\Local\Temp\MadiumLottie-{42608B12-5CB8-4EBA-8AD5-BC14FEA19EA1}\wv2\EBWebView\Default\Network\SCT Auditing Pending Reports
                  • Size 2B
                  • SHA256 4f53cda18c2baa0c0354bb5f9a3ecbe5ed12ab4d8e11ba873c2f11161202b945
                  • MD5 SHA1 SHA512

                  CURRENT

                  • Path C:\Users\Admin\AppData\Local\Temp\MadiumLottie-{42608B12-5CB8-4EBA-8AD5-BC14FEA19EA1}\wv2\EBWebView\Default\Site Characteristics Database\CURRENT
                  • Size 16B
                  • SHA256 0f1bad70c7bd1e0a69562853ec529355462fcd0423263a3d39d6d0d70b780443
                  • MD5 SHA1 SHA512

                  MANIFEST-000001

                  • Path C:\Users\Admin\AppData\Local\Temp\MadiumLottie-{42608B12-5CB8-4EBA-8AD5-BC14FEA19EA1}\wv2\EBWebView\Default\Sync Data\LevelDB\MANIFEST-000001
                  • Size 41B
                  • SHA256 f9d31b278e215eb0d0e9cd709edfa037e828f36214ab7906f612160fead4b2b4
                  • MD5 SHA1 SHA512

                  data_0

                  • Path C:\Users\Admin\AppData\Local\Temp\MadiumLottie-{42608B12-5CB8-4EBA-8AD5-BC14FEA19EA1}\wv2\EBWebView\GraphiteDawnCache\data_0
                  • Size 8KB
                  • SHA256 d6a5fe39cd672781b256e0e3102f7022635f1d4bb7cfcc90a80fffe4d0f3877e
                  • MD5 SHA1 SHA512 SSDEEP

                  data_1

                  • Path C:\Users\Admin\AppData\Local\Temp\MadiumLottie-{42608B12-5CB8-4EBA-8AD5-BC14FEA19EA1}\wv2\EBWebView\GraphiteDawnCache\data_1
                  • Size 264KB
                  • SHA256 902f30c1fb0597d0734bc34b979ec5d131f8f39a4b71b338083821216ec8d61b
                  • MD5 SHA1 SHA512 SSDEEP

                  data_2

                  • Path C:\Users\Admin\AppData\Local\Temp\MadiumLottie-{42608B12-5CB8-4EBA-8AD5-BC14FEA19EA1}\wv2\EBWebView\GraphiteDawnCache\data_2
                  • Size 8KB
                  • SHA256 ec1702806f4cc7c42a82fc2b38e89835fde7c64bb32060e0823c9077ca92efb7
                  • MD5 SHA1 SHA512 SSDEEP

                  data_3

                  • Path C:\Users\Admin\AppData\Local\Temp\MadiumLottie-{42608B12-5CB8-4EBA-8AD5-BC14FEA19EA1}\wv2\EBWebView\GraphiteDawnCache\data_3
                  • Size 8KB
                  • SHA256 e09f42c398d688dce168570291f1f92d079987deda3099a34adb9e8c0522b30c
                  • MD5 SHA1 SHA512 SSDEEP

                  Local State

                  • Path C:\Users\Admin\AppData\Local\Temp\MadiumLottie-{42608B12-5CB8-4EBA-8AD5-BC14FEA19EA1}\wv2\EBWebView\Local State
                  • Size 2KB
                  • SHA256 4ab1731659ecfff1d5366f4eae393751dd7fe176359391ba2c0f576a0e71eb3a
                  • MD5 SHA1 SHA512 TLSH

                  Local State

                  • Path C:\Users\Admin\AppData\Local\Temp\MadiumLottie-{42608B12-5CB8-4EBA-8AD5-BC14FEA19EA1}\wv2\EBWebView\Local State
                  • Size 15KB
                  • SHA256 fbab606b24dc015bca48fa5e78eaf430fe4affb69912a154d2c8431fa92cb948
                  • MD5 SHA1 SHA512 SSDEEP TLSH

                  Local State

                  • Path C:\Users\Admin\AppData\Local\Temp\MadiumLottie-{42608B12-5CB8-4EBA-8AD5-BC14FEA19EA1}\wv2\EBWebView\Local State
                  • Size 3KB
                  • SHA256 bcc2687525db9d959b87dad0f43f90e80200c917219994d4fd438a6f94568e43
                  • MD5 SHA1 SHA512 TLSH

                  Local State~RFe595942.TMP

                  • Path C:\Users\Admin\AppData\Local\Temp\MadiumLottie-{42608B12-5CB8-4EBA-8AD5-BC14FEA19EA1}\wv2\EBWebView\Local State~RFe595942.TMP
                  • Size 1KB
                  • SHA256 f61bfeb74885a24deb424e3b5d1709036860ffac20e51d13f197914cc4605c77
                  • MD5 SHA1 SHA512 TLSH

                  Madium.lnk

                  • Path C:\Users\Admin\Desktop\Madium.lnk
                  • Size 1KB
                  • SHA256 77763c89eea1ddf05bc856c2f5f761894cdc573322ff41754e1d1dd0269cf340
                  • MD5 SHA1 SHA512 TLSH

                  memory/1264-42-0x00007FFFEFD10000-0x00007FFFEFD11000-memory.dmp

                  memory/1264-305-0x000002B902580000-0x000002B9026B0000-memory.dmp

                  memory/2852-341-0x000002B001CD0000-0x000002B001CF0000-memory.dmp

                  memory/2852-342-0x000002B014000000-0x000002B014100000-memory.dmp

                  memory/2852-328-0x000002B0001E0000-0x000002B0002E0000-memory.dmp

                  memory/2852-374-0x000002B014710000-0x000002B014730000-memory.dmp

                  memory/2852-350-0x000002B001DF0000-0x000002B001E10000-memory.dmp

                  memory/4968-106-0x00007FFFEFD10000-0x00007FFFEFD11000-memory.dmp

                  memory/4968-306-0x000001889AC70000-0x000001889ACE4000-memory.dmp