Analysis

  • geolocation tags

    eueuropefrfrance
  • user interaction
    yes
  • max time kernel
    80s
  • max time network
    83s
  • platform
    windows11-21h2_x64
  • resource
    win11-20260130-en
  • resource tags

    arch:x64arch:x86image:win11-20260130-enlocale:en-usos:windows11-21h2-x64systemwindows
  • submitted
    04/05/2026, 17:13

General

  • Target
    Madium-Installer.exe
  • Size 13.0MB
  • Sample260504-vrr7msf13s
  • 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 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.

  • 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: GetForegroundWindowSpam 1 IoCs
  • Suspicious behavior: NtCreateUserProcessBlockNonMicrosoftBinary 1 IoCs
  • Suspicious use of AdjustPrivilegeToken 4 IoCs
  • Suspicious use of FindShellTrayWindow 1 IoCs
  • Suspicious use of SetWindowsHookEx 2 IoCs
  • Suspicious use of WriteProcessMemory 15 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:3240
    • C:\Windows\system32\cmd.exe
      C:\Windows\system32\cmd.exe /c cls
      2⤵
        PID:5020
      • 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:3832
      • 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:4444
        • 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=4444.1172.16921189135892764906
          3⤵
          • Drops file in Windows directory
          • Enumerates system info in registry
          • Modifies data under HKEY_USERS
          • Suspicious behavior: NtCreateUserProcessBlockNonMicrosoftBinary
          • Suspicious use of WriteProcessMemory
          PID:3752
          • 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=0x160,0x164,0x168,0x13c,0x170,0x7ff87e38b078,0x7ff87e38b084,0x7ff87e38b090
            4⤵
              PID:1608
            • 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=1688,i,18328881893071941600,8681746063999468681,262144 --disable-features=msPdfOOUI,msSmartScreenProtection,msWebOOUI --variations-seed-version --mojo-platform-channel-handle=1680 /prefetch:2
              4⤵
                PID:3868
              • 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=2100,i,18328881893071941600,8681746063999468681,262144 --disable-features=msPdfOOUI,msSmartScreenProtection,msWebOOUI --variations-seed-version --mojo-platform-channel-handle=2128 /prefetch:11
                4⤵
                  PID:464
                • 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=1684,i,18328881893071941600,8681746063999468681,262144 --disable-features=msPdfOOUI,msSmartScreenProtection,msWebOOUI --variations-seed-version --mojo-platform-channel-handle=2356 /prefetch:13
                  4⤵
                    PID:3780
                  • 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=3596,i,18328881893071941600,8681746063999468681,262144 --disable-features=msPdfOOUI,msSmartScreenProtection,msWebOOUI --variations-seed-version --mojo-platform-channel-handle=3604 /prefetch:1
                    4⤵
                      PID:2972
              • C:\Windows\system32\svchost.exe
                C:\Windows\system32\svchost.exe -k LocalService -p -s NPSMSvc
                1⤵
                  PID:1548
                • C:\Windows\System32\oobe\UserOOBEBroker.exe
                  C:\Windows\System32\oobe\UserOOBEBroker.exe -Embedding
                  1⤵
                  • Drops file in Windows directory
                  PID:5172
                • 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:4928
                • C:\Windows\system32\OpenWith.exe
                  C:\Windows\system32\OpenWith.exe -Embedding
                  1⤵
                  • Suspicious use of SetWindowsHookEx
                  PID:1036
                • C:\Windows\system32\OpenWith.exe
                  C:\Windows\system32\OpenWith.exe -Embedding
                  1⤵
                  • Suspicious behavior: GetForegroundWindowSpam
                  • Suspicious use of SetWindowsHookEx
                  PID:3548

                Network

                      MITRE ATT&CK Enterprise v16

                      Replay Monitor

                      Loading Replay Monitor...

                      Downloads

                      settings.dat

                      • Path C:\Users\Admin\AppData\Local\com.madium.app\EBWebView\Crashpad\settings.dat
                      • Size 280B
                      • SHA256 52b77e952875a3185ddb6cb1ebe2c2759d456f643b72e86626c9faf12dbb2372
                      • MD5 SHA1 SHA512

                      settings.dat

                      • Path C:\Users\Admin\AppData\Local\com.madium.app\EBWebView\Crashpad\settings.dat
                      • Size 280B
                      • SHA256 0e48d6df0f1ad31069cf54ce599b4df2a218cab8268d5bee353070075642d76a
                      • 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 c73255f2174509881cba74c97c9793ad0a6c8fb01c06f9da5e8a1e34b5df55eb
                      • 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 a4165542e80419b96646547f3177aa473762acc193b995cf6b827d213a44fe23
                      • MD5 SHA1 SHA512 TLSH

                      the-real-index

                      • Path C:\Users\Admin\AppData\Local\com.madium.app\EBWebView\Default\Code Cache\js\index-dir\the-real-index
                      • Size 456B
                      • SHA256 162d0f7ebe9e1fd965e2791810a36bb26df16869568ea9d9ecb6da69e00eae34
                      • MD5 SHA1 SHA512 TLSH

                      data_1

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

                      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_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

                      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

                      TransportSecurity

                      • Path C:\Users\Admin\AppData\Local\com.madium.app\EBWebView\Default\Network\TransportSecurity
                      • Size 690B
                      • SHA256 edabda8d1c916135adf5697d5c97c4382bcf68de315e5f183babd3c081db0c37
                      • MD5 SHA1 SHA512 TLSH

                      TransportSecurity~RFe58abac.TMP

                      • Path C:\Users\Admin\AppData\Local\com.madium.app\EBWebView\Default\Network\TransportSecurity~RFe58abac.TMP
                      • Size 188B
                      • SHA256 afb076aefcd92b222c29056aa0fdf0c6c4a48f7a451041b0ca6c698865ec9ae5
                      • MD5 SHA1 SHA512 TLSH

                      Preferences

                      • Path C:\Users\Admin\AppData\Local\com.madium.app\EBWebView\Default\Preferences
                      • Size 6KB
                      • SHA256 6cc21a1fef12c1c84330a18b25f271e4776571905acc2853f1dba8fd949c0221
                      • MD5 SHA1 SHA512 SSDEEP TLSH

                      Preferences~RFe58ae8b.TMP

                      • Path C:\Users\Admin\AppData\Local\com.madium.app\EBWebView\Default\Preferences~RFe58ae8b.TMP
                      • Size 6KB
                      • SHA256 a9bbab14c4efd3969ea2b8efb370aa157da5683b1260b77705865e00b4437da3
                      • MD5 SHA1 SHA512 SSDEEP TLSH

                      CURRENT

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

                      Local State

                      • Path C:\Users\Admin\AppData\Local\com.madium.app\EBWebView\Local State
                      • Size 1KB
                      • SHA256 cd9fbaf6d96713651421ddf2c8bede747eb53c9c7982f4e58323582df97c8d9b
                      • MD5 SHA1 SHA512 TLSH

                      Local State

                      • Path C:\Users\Admin\AppData\Local\com.madium.app\EBWebView\Local State
                      • Size 16KB
                      • SHA256 d359daf7e25f05835cb742be36156a20f165d3012230d907e6b3c9638ef30b2f
                      • MD5 SHA1 SHA512 SSDEEP TLSH

                      Local State

                      • Path C:\Users\Admin\AppData\Local\com.madium.app\EBWebView\Local State
                      • Size 2KB
                      • SHA256 abd5076c595230e36276d4e5360c2d86327e3aabb8daa3d0b18adda3f75dceab
                      • MD5 SHA1 SHA512 TLSH

                      Local State

                      • Path C:\Users\Admin\AppData\Local\com.madium.app\EBWebView\Local State
                      • Size 3KB
                      • SHA256 f7c757db4f4deae2490d31b35877ceb0ae1c56271c5862e2864421875122d0c2
                      • MD5 SHA1 SHA512 TLSH

                      Local State

                      • Path C:\Users\Admin\AppData\Local\com.madium.app\EBWebView\Local State
                      • Size 16KB
                      • SHA256 a67d8434f34f8b33bebce80f00852367350d448e4f80f650bdacae2139461795
                      • MD5 SHA1 SHA512 SSDEEP TLSH

                      Local State~RFe581037.TMP

                      • Path C:\Users\Admin\AppData\Local\com.madium.app\EBWebView\Local State~RFe581037.TMP
                      • Size 1KB
                      • SHA256 28c35130bd9e8c760deee5f866638649089a824d929a6cee96241e6d4f803222
                      • 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

                      memory/1036-389-0x0000024B9A590000-0x0000024B9A6B0000-memory.dmp

                      memory/2972-185-0x00007FF89C4D0000-0x00007FF89C4D1000-memory.dmp

                      memory/3240-1-0x00007FF89DBF0000-0x00007FF89DBF2000-memory.dmp

                      memory/3240-45-0x00007FF7DABB3000-0x00007FF7DB39E000-memory.dmp

                      memory/3240-44-0x00007FF7DAB60000-0x00007FF7DC096000-memory.dmp

                      memory/3240-5-0x00007FF7DAB60000-0x00007FF7DC096000-memory.dmp

                      memory/3240-0-0x00007FF7DABB3000-0x00007FF7DB39E000-memory.dmp

                      memory/3240-38-0x000001EBE5AB0000-0x000001EBE5BD0000-memory.dmp

                      memory/3240-6-0x00007FF7DAB60000-0x00007FF7DC096000-memory.dmp

                      memory/3548-400-0x0000028CEBBA0000-0x0000028CEBCC0000-memory.dmp

                      memory/3752-263-0x000002A583600000-0x000002A583DAE000-memory.dmp

                      memory/3868-66-0x00007FF89C4D0000-0x00007FF89C4D1000-memory.dmp

                      memory/4444-292-0x000001C95BC80000-0x000001C95BDA0000-memory.dmp

                      memory/4444-377-0x000001C95BC80000-0x000001C95BDA0000-memory.dmp

                      memory/4444-366-0x000001C95BC80000-0x000001C95BDA0000-memory.dmp

                      memory/4444-340-0x000001C95BC80000-0x000001C95BDA0000-memory.dmp

                      memory/4444-262-0x000001C95BC80000-0x000001C95BDA0000-memory.dmp