Analysis

  • user interaction
    yes
  • max time kernel
    149s
  • max time network
    149s
  • platform
    windows11-21h2_x64
  • resource
    win11-20260513-en
  • resource tags

    arch:x64arch:x86image:win11-20260513-enlocale:en-usos:windows11-21h2-x64systemwindows
  • submitted
    30/05/2026, 03:58

General

  • Target
    Madium-Installer.exe
  • Size 13.0MB
  • Sample260530-ejy28afy9q
  • SHA256 2ee90a1ea33cabb04324c4c81fbf5e10324555daa15a5ce1cca057c12e61b096
  • MD5 SHA1 SHA512 SSDEEP TLSH

Malware Config

Signatures

  • Executes dropped EXE 1 IoCs
  • Checks whether UAC is enabled 1 TTPs 1 IoCs
  • Contacts third-party web service commonly abused for C2 1 TTPs 3 IoCs

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

  • Network Share Discovery 1 TTPs

    Attempt to gather information on host network.

  • Drops file in Windows directory 9 IoCs
  • Enumerates physical storage devices 1 TTPs

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

  • Enumerates system info in registry 2 TTPs 3 IoCs
  • Kills process with taskkill 1 IoCs
  • Modifies data under HKEY_USERS 2 IoCs
  • Suspicious behavior: EnumeratesProcesses 64 IoCs
  • Suspicious behavior: NtCreateUserProcessBlockNonMicrosoftBinary 1 IoCs
  • Suspicious use of AdjustPrivilegeToken 4 IoCs
  • Suspicious use of FindShellTrayWindow 1 IoCs
  • Suspicious use of WriteProcessMemory 21 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\Madium-Installer.exe
    "C:\Users\Admin\AppData\Local\Temp\Madium-Installer.exe"
    1⤵
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:4344
    • C:\Windows\system32\cmd.exe
      C:\Windows\system32\cmd.exe /c cls
      2⤵
        PID:2432
      • C:\Windows\system32\cmd.exe
        C:\Windows\system32\cmd.exe /c taskkill /F /IM Madium.exe /IM Loader.exe >nul 2>&1
        2⤵
        • Suspicious use of WriteProcessMemory
        PID:4940
        • C:\Windows\system32\taskkill.exe
          taskkill /F /IM Madium.exe /IM Loader.exe
          3⤵
          • Kills process with taskkill
          • Suspicious use of AdjustPrivilegeToken
          PID:2916
      • C:\Users\Admin\AppData\Roaming\Madium\Bin\Madium.exe
        "C:\Users\Admin\AppData\Roaming\Madium\Bin\Madium.exe"
        2⤵
        • Executes dropped EXE
        • Checks whether UAC is enabled
        • Suspicious behavior: EnumeratesProcesses
        • Suspicious use of FindShellTrayWindow
        • Suspicious use of WriteProcessMemory
        PID:4776
        • C:\Program Files (x86)\Microsoft\EdgeWebView\Application\132.0.2957.140\msedgewebview2.exe
          "C:\Program Files (x86)\Microsoft\EdgeWebView\Application\132.0.2957.140\msedgewebview2.exe" --embedded-browser-webview=1 --webview-exe-name=Madium.exe --webview-exe-version=0.1.0 --user-data-dir="C:\Users\Admin\AppData\Local\com.madium.app\EBWebView" --noerrdialogs --embedded-browser-webview-dpi-awareness=2 --autoplay-policy=no-user-gesture-required --disable-features=msWebOOUI,msPdfOOUI,msSmartScreenProtection --lang=en-US --mojo-named-platform-channel-pipe=4776.3920.5792331021253297675
          3⤵
          • Drops file in Windows directory
          • Enumerates system info in registry
          • Modifies data under HKEY_USERS
          • Suspicious behavior: NtCreateUserProcessBlockNonMicrosoftBinary
          • Suspicious use of WriteProcessMemory
          PID:1108
          • C:\Program Files (x86)\Microsoft\EdgeWebView\Application\132.0.2957.140\msedgewebview2.exe
            "C:\Program Files (x86)\Microsoft\EdgeWebView\Application\132.0.2957.140\msedgewebview2.exe" --type=crashpad-handler --user-data-dir=C:\Users\Admin\AppData\Local\com.madium.app\EBWebView /prefetch:4 --monitor-self-annotation=ptype=crashpad-handler --database=C:\Users\Admin\AppData\Local\com.madium.app\EBWebView\Crashpad --annotation=IsOfficialBuild=1 --annotation=channel= --annotation=chromium-version=132.0.6834.160 "--annotation=exe=C:\Program Files (x86)\Microsoft\EdgeWebView\Application\132.0.2957.140\msedgewebview2.exe" --annotation=plat=Win64 "--annotation=prod=Edge WebView2" --annotation=ver=132.0.2957.140 --initial-client-data=0x170,0x174,0x178,0x14c,0x1a4,0x7ffc348bb078,0x7ffc348bb084,0x7ffc348bb090
            4⤵
              PID:3784
            • C:\Program Files (x86)\Microsoft\EdgeWebView\Application\132.0.2957.140\msedgewebview2.exe
              "C:\Program Files (x86)\Microsoft\EdgeWebView\Application\132.0.2957.140\msedgewebview2.exe" --type=gpu-process --string-annotations --noerrdialogs --user-data-dir="C:\Users\Admin\AppData\Local\com.madium.app\EBWebView" --webview-exe-name=Madium.exe --webview-exe-version=0.1.0 --embedded-browser-webview=1 --embedded-browser-webview-dpi-awareness=2 --gpu-preferences=UAAAAAAAAADgAAAEAAAAAAAAAAAAAAAAAABgAAEAAAAAAAAAAAAAAAAAAAACAAAAAAAAAAAAAAAAAAAAAAAAABAAAAAAAAAAEAAAAAAAAAAIAAAAAAAAAAgAAAAAAAAA --always-read-main-dll --field-trial-handle=1712,i,686242779950823754,3733353212826938042,262144 --disable-features=msPdfOOUI,msSmartScreenProtection,msWebOOUI --variations-seed-version --mojo-platform-channel-handle=1708 /prefetch:2
              4⤵
                PID:4804
              • C:\Program Files (x86)\Microsoft\EdgeWebView\Application\132.0.2957.140\msedgewebview2.exe
                "C:\Program Files (x86)\Microsoft\EdgeWebView\Application\132.0.2957.140\msedgewebview2.exe" --type=utility --utility-sub-type=network.mojom.NetworkService --lang=en-US --service-sandbox-type=none --string-annotations --noerrdialogs --user-data-dir="C:\Users\Admin\AppData\Local\com.madium.app\EBWebView" --webview-exe-name=Madium.exe --webview-exe-version=0.1.0 --embedded-browser-webview=1 --embedded-browser-webview-dpi-awareness=2 --always-read-main-dll --field-trial-handle=2020,i,686242779950823754,3733353212826938042,262144 --disable-features=msPdfOOUI,msSmartScreenProtection,msWebOOUI --variations-seed-version --mojo-platform-channel-handle=2032 /prefetch:11
                4⤵
                  PID:3736
                • C:\Program Files (x86)\Microsoft\EdgeWebView\Application\132.0.2957.140\msedgewebview2.exe
                  "C:\Program Files (x86)\Microsoft\EdgeWebView\Application\132.0.2957.140\msedgewebview2.exe" --type=utility --utility-sub-type=storage.mojom.StorageService --lang=en-US --service-sandbox-type=service --string-annotations --noerrdialogs --user-data-dir="C:\Users\Admin\AppData\Local\com.madium.app\EBWebView" --webview-exe-name=Madium.exe --webview-exe-version=0.1.0 --embedded-browser-webview=1 --embedded-browser-webview-dpi-awareness=2 --always-read-main-dll --field-trial-handle=2296,i,686242779950823754,3733353212826938042,262144 --disable-features=msPdfOOUI,msSmartScreenProtection,msWebOOUI --variations-seed-version --mojo-platform-channel-handle=2312 /prefetch:13
                  4⤵
                    PID:2880
                  • C:\Program Files (x86)\Microsoft\EdgeWebView\Application\132.0.2957.140\msedgewebview2.exe
                    "C:\Program Files (x86)\Microsoft\EdgeWebView\Application\132.0.2957.140\msedgewebview2.exe" --type=renderer --string-annotations --noerrdialogs --user-data-dir="C:\Users\Admin\AppData\Local\com.madium.app\EBWebView" --webview-exe-name=Madium.exe --webview-exe-version=0.1.0 --embedded-browser-webview=1 --embedded-browser-webview-dpi-awareness=2 --autoplay-policy=no-user-gesture-required --video-capture-use-gpu-memory-buffer --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=" --always-read-main-dll --field-trial-handle=3588,i,686242779950823754,3733353212826938042,262144 --disable-features=msPdfOOUI,msSmartScreenProtection,msWebOOUI --variations-seed-version --mojo-platform-channel-handle=3596 /prefetch:1
                    4⤵
                      PID:4036
                    • C:\Program Files (x86)\Microsoft\EdgeWebView\Application\132.0.2957.140\msedgewebview2.exe
                      "C:\Program Files (x86)\Microsoft\EdgeWebView\Application\132.0.2957.140\msedgewebview2.exe" --type=utility --utility-sub-type=unzip.mojom.Unzipper --lang=en-US --service-sandbox-type=service --string-annotations --noerrdialogs --user-data-dir="C:\Users\Admin\AppData\Local\com.madium.app\EBWebView" --webview-exe-name=Madium.exe --webview-exe-version=0.1.0 --embedded-browser-webview=1 --embedded-browser-webview-dpi-awareness=2 --always-read-main-dll --field-trial-handle=4080,i,686242779950823754,3733353212826938042,262144 --disable-features=msPdfOOUI,msSmartScreenProtection,msWebOOUI --variations-seed-version --mojo-platform-channel-handle=2088 /prefetch:14
                      4⤵
                        PID:2540
                      • C:\Program Files (x86)\Microsoft\EdgeWebView\Application\132.0.2957.140\msedgewebview2.exe
                        "C:\Program Files (x86)\Microsoft\EdgeWebView\Application\132.0.2957.140\msedgewebview2.exe" --type=utility --utility-sub-type=unzip.mojom.Unzipper --lang=en-US --service-sandbox-type=service --string-annotations --noerrdialogs --user-data-dir="C:\Users\Admin\AppData\Local\com.madium.app\EBWebView" --webview-exe-name=Madium.exe --webview-exe-version=0.1.0 --embedded-browser-webview=1 --embedded-browser-webview-dpi-awareness=2 --always-read-main-dll --field-trial-handle=4652,i,686242779950823754,3733353212826938042,262144 --disable-features=msPdfOOUI,msSmartScreenProtection,msWebOOUI --variations-seed-version --mojo-platform-channel-handle=4500 /prefetch:14
                        4⤵
                          PID:2344
                        • C:\Program Files (x86)\Microsoft\EdgeWebView\Application\132.0.2957.140\msedgewebview2.exe
                          "C:\Program Files (x86)\Microsoft\EdgeWebView\Application\132.0.2957.140\msedgewebview2.exe" --type=utility --utility-sub-type=unzip.mojom.Unzipper --lang=en-US --service-sandbox-type=service --string-annotations --noerrdialogs --user-data-dir="C:\Users\Admin\AppData\Local\com.madium.app\EBWebView" --webview-exe-name=Madium.exe --webview-exe-version=0.1.0 --embedded-browser-webview=1 --embedded-browser-webview-dpi-awareness=2 --always-read-main-dll --field-trial-handle=4600,i,686242779950823754,3733353212826938042,262144 --disable-features=msPdfOOUI,msSmartScreenProtection,msWebOOUI --variations-seed-version --mojo-platform-channel-handle=4700 /prefetch:14
                          4⤵
                            PID:1036

                    Network

                          MITRE ATT&CK Enterprise v16

                          Replay Monitor

                          Loading Replay Monitor...

                          Downloads

                          protocols.json

                          • Path C:\Users\Admin\AppData\Local\com.madium.app\EBWebView\AutoLaunchProtocolsComponent\1.0.0.10\protocols.json
                          • Size 3KB
                          • SHA256 4fd800e7b1a5fb24b13fac2e31946d205012b7c28d8c61580b0669b2fa3517cc
                          • MD5 SHA1 SHA512 TLSH

                          settings.dat

                          • Path C:\Users\Admin\AppData\Local\com.madium.app\EBWebView\Crashpad\settings.dat
                          • Size 280B
                          • SHA256 81fe69939eb78b98a7add42cf24ed61c43d7c30fd65efd4996cd6c43e1ee5cd5
                          • MD5 SHA1 SHA512

                          settings.dat

                          • Path C:\Users\Admin\AppData\Local\com.madium.app\EBWebView\Crashpad\settings.dat
                          • Size 280B
                          • SHA256 79fb1fcb7b1eb58029a9eb3d2000cf94561f837ad919a6dde11bc59a328e9652
                          • MD5 SHA1 SHA512 TLSH

                          throttle_store.dat

                          • Path C:\Users\Admin\AppData\Local\com.madium.app\EBWebView\Crashpad\throttle_store.dat
                          • Size 20B
                          • SHA256 41c91a9c93d76295746a149dce7ebb3b9ee2cb551d84365fff108e59a61cc304
                          • MD5 SHA1 SHA512

                          the-real-index

                          • Path C:\Users\Admin\AppData\Local\com.madium.app\EBWebView\Default\Code Cache\js\index-dir\the-real-index
                          • Size 48B
                          • SHA256 ea67b955426d1df2130b26d38d35a49442d6950425884ea03a8d96dc273c32d8
                          • MD5 SHA1 SHA512

                          the-real-index

                          • Path C:\Users\Admin\AppData\Local\com.madium.app\EBWebView\Default\Code Cache\js\index-dir\the-real-index
                          • Size 216B
                          • SHA256 e34482836255ec8af56215d70db2a68bb3c5b469907c599c4c60c386a3937b06
                          • MD5 SHA1 SHA512 TLSH

                          data_0

                          • Path C:\Users\Admin\AppData\Local\com.madium.app\EBWebView\Default\DawnWebGPUCache\data_0
                          • Size 8KB
                          • SHA256 d6a5fe39cd672781b256e0e3102f7022635f1d4bb7cfcc90a80fffe4d0f3877e
                          • MD5 SHA1 SHA512 SSDEEP

                          data_1

                          • Path C:\Users\Admin\AppData\Local\com.madium.app\EBWebView\Default\DawnWebGPUCache\data_1
                          • Size 264KB
                          • SHA256 902f30c1fb0597d0734bc34b979ec5d131f8f39a4b71b338083821216ec8d61b
                          • MD5 SHA1 SHA512 SSDEEP

                          data_2

                          • Path C:\Users\Admin\AppData\Local\com.madium.app\EBWebView\Default\DawnWebGPUCache\data_2
                          • Size 8KB
                          • SHA256 ec1702806f4cc7c42a82fc2b38e89835fde7c64bb32060e0823c9077ca92efb7
                          • MD5 SHA1 SHA512 SSDEEP

                          data_3

                          • Path C:\Users\Admin\AppData\Local\com.madium.app\EBWebView\Default\DawnWebGPUCache\data_3
                          • Size 8KB
                          • SHA256 e09f42c398d688dce168570291f1f92d079987deda3099a34adb9e8c0522b30c
                          • MD5 SHA1 SHA512 SSDEEP

                          MANIFEST-000001

                          • Path C:\Users\Admin\AppData\Local\com.madium.app\EBWebView\Default\Extension Rules\MANIFEST-000001
                          • Size 41B
                          • SHA256 f9d31b278e215eb0d0e9cd709edfa037e828f36214ab7906f612160fead4b2b4
                          • MD5 SHA1 SHA512

                          Network Persistent State

                          • Path C:\Users\Admin\AppData\Local\com.madium.app\EBWebView\Default\Network\Network Persistent State
                          • Size 111B
                          • SHA256 5dfc321417fc31359f23320ea68014ebfd793c5bbed55f77dab4180bbd4a2026
                          • MD5 SHA1 SHA512 TLSH

                          Network Persistent State~RFe5a1c15.TMP

                          • Path C:\Users\Admin\AppData\Local\com.madium.app\EBWebView\Default\Network\Network Persistent State~RFe5a1c15.TMP
                          • Size 59B
                          • SHA256 226eec4486509917aa336afebd6ff65777b75b65f1fb06891d2a857a9421a974
                          • MD5 SHA1 SHA512 TLSH

                          SCT Auditing Pending Reports

                          • Path C:\Users\Admin\AppData\Local\com.madium.app\EBWebView\Default\Network\SCT Auditing Pending Reports
                          • Size 2B
                          • SHA256 4f53cda18c2baa0c0354bb5f9a3ecbe5ed12ab4d8e11ba873c2f11161202b945
                          • MD5 SHA1 SHA512

                          Preferences

                          • Path C:\Users\Admin\AppData\Local\com.madium.app\EBWebView\Default\Preferences
                          • Size 6KB
                          • SHA256 64e6653e3b2ba399affd0685ccd29c5f0a9f0dc619f88fdca8a2572838e8d522
                          • MD5 SHA1 SHA512 SSDEEP TLSH

                          Preferences~RFe5992b1.TMP

                          • Path C:\Users\Admin\AppData\Local\com.madium.app\EBWebView\Default\Preferences~RFe5992b1.TMP
                          • Size 6KB
                          • SHA256 d62dd97c241b58d7e3ca996cc113eeb4c4f92da0eba73a39371afb9a11a3368d
                          • MD5 SHA1 SHA512 SSDEEP TLSH

                          CURRENT

                          • Path C:\Users\Admin\AppData\Local\com.madium.app\EBWebView\Default\Site Characteristics Database\CURRENT
                          • Size 16B
                          • SHA256 0f1bad70c7bd1e0a69562853ec529355462fcd0423263a3d39d6d0d70b780443
                          • MD5 SHA1 SHA512

                          Local State

                          • Path C:\Users\Admin\AppData\Local\com.madium.app\EBWebView\Local State
                          • Size 2KB
                          • SHA256 e236df0cd854fcafbe4ed3ea397db0fa5956772d2a52844e22e6da5b6a0ead79
                          • MD5 SHA1 SHA512 TLSH

                          Local State

                          • Path C:\Users\Admin\AppData\Local\com.madium.app\EBWebView\Local State
                          • Size 1KB
                          • SHA256 eec49311c6d5398b5949dba28d91f9e2a0a1bffc757e9bab84f316c61cf73553
                          • MD5 SHA1 SHA512 TLSH

                          Local State

                          • Path C:\Users\Admin\AppData\Local\com.madium.app\EBWebView\Local State
                          • Size 16KB
                          • SHA256 e03f747fc24fcde6f77653339fbee70be0831dc2145a306c40867be0b350cdd9
                          • MD5 SHA1 SHA512 SSDEEP TLSH

                          Local State

                          • Path C:\Users\Admin\AppData\Local\com.madium.app\EBWebView\Local State
                          • Size 3KB
                          • SHA256 f030b33384e6a05828804cc31cd0d860bb7d175bef6f8a9ab4736cf9b953310f
                          • MD5 SHA1 SHA512 TLSH

                          Local State~RFe58f3c1.TMP

                          • Path C:\Users\Admin\AppData\Local\com.madium.app\EBWebView\Local State~RFe58f3c1.TMP
                          • Size 1KB
                          • SHA256 54e6e80f1298a03e4b7edb19a59aa2bd21733db50c87575c950617aafc0fc017
                          • MD5 SHA1 SHA512 TLSH

                          Madium.exe

                          • Path C:\Users\Admin\AppData\Roaming\Madium\Bin\Madium.exe
                          • Size 15.0MB
                          • SHA256 edaf6676fe03d0a552f07d7fd438f34d8fe79612c80a365cb42fba679bbea530
                          • MD5 SHA1 SHA512 SSDEEP TLSH

                          manifest.fingerprint

                          • Path C:\Windows\SystemTemp\chrome_Unpacker_BeginUnzipping1108_1440118330\manifest.fingerprint
                          • Size 66B
                          • SHA256 c236a2ac7741d48e1c56980652331cb3f1f12baf937baf0b280600fbafb143e3
                          • MD5 SHA1 SHA512 TLSH

                          manifest.json

                          • Path C:\Windows\SystemTemp\chrome_Unpacker_BeginUnzipping1108_1440118330\manifest.json
                          • Size 135B
                          • SHA256 ba5c9096d20a482aaa1aa9e5f98ad6127d3e97c2f21de84f7c78d9b8073c8e26
                          • MD5 SHA1 SHA512 TLSH

                          manifest.json

                          • Path C:\Windows\SystemTemp\chrome_Unpacker_BeginUnzipping1108_765472540\manifest.json
                          • Size 43B
                          • SHA256 81bd82ac27612a58be30a72dd8956b13f883e32ffb54a58076bd6a42b8afaeea
                          • MD5 SHA1 SHA512

                          memory/4036-278-0x000001BECA790000-0x000001BECA82E000-memory.dmp

                          memory/4036-150-0x00007FFC53940000-0x00007FFC53941000-memory.dmp

                          memory/4344-16-0x00007FF778523000-0x00007FF778D0E000-memory.dmp

                          memory/4344-5-0x00007FF7784D0000-0x00007FF779A06000-memory.dmp

                          memory/4344-46-0x00007FF778523000-0x00007FF778D0E000-memory.dmp

                          memory/4344-0-0x00007FF778523000-0x00007FF778D0E000-memory.dmp

                          memory/4344-1-0x00007FFC557D0000-0x00007FFC557D2000-memory.dmp

                          memory/4344-6-0x00007FF7784D0000-0x00007FF779A06000-memory.dmp

                          memory/4344-39-0x00007FF7784D0000-0x00007FF779A06000-memory.dmp

                          memory/4344-17-0x00007FF7784D0000-0x00007FF779A06000-memory.dmp

                          memory/4804-276-0x000002A346410000-0x000002A3464AE000-memory.dmp

                          memory/4804-66-0x00007FFC53940000-0x00007FFC53941000-memory.dmp