Resubmissions

04/08/2026, 00:58

260804-bbndzaej8t8

04/08/2026, 00:54

260804-a9c58aej7s8

Analysis

  • max time kernel
    148s
  • max time network
    152s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20260513-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20260513-enlocale:en-usos:windows10-2004-x64systemwindows
  • submitted
    04/08/2026, 00:54

General

  • Target
    SteupX.exe
  • Size 9.6MB
  • Sample260804-a9c58aej7s
  • SHA256 6698bc6495e96b8a6654e96369d6ab54a64b3da5d7bfde56f164c10c2afca24d
  • MD5 SHA1 SHA512 SSDEEP TLSH

Malware Config

Signatures

  • Checks whether UAC is enabled 1 TTPs 1 IoCs
  • Network Share Discovery 1 TTPs

    Attempt to gather information on host network.

  • Drops file in Program Files directory 13 IoCs
  • Enumerates system info in registry 2 TTPs 7 IoCs
  • Modifies data under HKEY_USERS 2 IoCs
  • Suspicious behavior: EnumeratesProcesses 2 IoCs
  • Suspicious behavior: NtCreateUserProcessBlockNonMicrosoftBinary 1 IoCs
  • Suspicious use of FindShellTrayWindow 1 IoCs
  • Suspicious use of WriteProcessMemory 18 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\SteupX.exe
    "C:\Users\Admin\AppData\Local\Temp\SteupX.exe"
    1⤵
    • Checks whether UAC is enabled
    • Enumerates system info in registry
    • Suspicious use of FindShellTrayWindow
    • Suspicious use of WriteProcessMemory
    PID:988
    • 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=SteupX.exe --webview-exe-version=0.1.0 --user-data-dir="C:\Users\Admin\AppData\Local\com.Setup.app\EBWebView" --noerrdialogs --embedded-browser-webview-dpi-awareness=2 --disable-features=msWebOOUI,msPdfOOUI,msSmartScreenProtection --lang=en-US --mojo-named-platform-channel-pipe=988.1560.17200095376152606198
      2⤵
      • Drops file in Program Files directory
      • Enumerates system info in registry
      • Modifies data under HKEY_USERS
      • Suspicious behavior: NtCreateUserProcessBlockNonMicrosoftBinary
      • Suspicious use of WriteProcessMemory
      PID:5068
      • 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.Setup.app\EBWebView /prefetch:4 --monitor-self-annotation=ptype=crashpad-handler --database=C:\Users\Admin\AppData\Local\com.Setup.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=0x15c,0x160,0x164,0x138,0x16c,0x7ffe6dd7b078,0x7ffe6dd7b084,0x7ffe6dd7b090
        3⤵
          PID:2092
        • 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.Setup.app\EBWebView" --webview-exe-name=SteupX.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=1708,i,9450362245208548512,13888186982644667327,262144 --disable-features=msPdfOOUI,msSmartScreenProtection,msWebOOUI --variations-seed-version --mojo-platform-channel-handle=1720 /prefetch:2
          3⤵
            PID:2656
          • 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.Setup.app\EBWebView" --webview-exe-name=SteupX.exe --webview-exe-version=0.1.0 --embedded-browser-webview=1 --embedded-browser-webview-dpi-awareness=2 --always-read-main-dll --field-trial-handle=1388,i,9450362245208548512,13888186982644667327,262144 --disable-features=msPdfOOUI,msSmartScreenProtection,msWebOOUI --variations-seed-version --mojo-platform-channel-handle=2044 /prefetch:3
            3⤵
              PID:1396
            • 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.Setup.app\EBWebView" --webview-exe-name=SteupX.exe --webview-exe-version=0.1.0 --embedded-browser-webview=1 --embedded-browser-webview-dpi-awareness=2 --always-read-main-dll --field-trial-handle=2360,i,9450362245208548512,13888186982644667327,262144 --disable-features=msPdfOOUI,msSmartScreenProtection,msWebOOUI --variations-seed-version --mojo-platform-channel-handle=2356 /prefetch:8
              3⤵
                PID:1980
              • 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.Setup.app\EBWebView" --webview-exe-name=SteupX.exe --webview-exe-version=0.1.0 --embedded-browser-webview=1 --embedded-browser-webview-dpi-awareness=2 --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=3636,i,9450362245208548512,13888186982644667327,262144 --disable-features=msPdfOOUI,msSmartScreenProtection,msWebOOUI --variations-seed-version --mojo-platform-channel-handle=3640 /prefetch:1
                3⤵
                  PID:3504
                • 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.Setup.app\EBWebView" --webview-exe-name=SteupX.exe --webview-exe-version=0.1.0 --embedded-browser-webview=1 --embedded-browser-webview-dpi-awareness=2 --always-read-main-dll --field-trial-handle=4476,i,9450362245208548512,13888186982644667327,262144 --disable-features=msPdfOOUI,msSmartScreenProtection,msWebOOUI --variations-seed-version --mojo-platform-channel-handle=2196 /prefetch:8
                  3⤵
                    PID:4816
                  • 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.Setup.app\EBWebView" --webview-exe-name=SteupX.exe --webview-exe-version=0.1.0 --embedded-browser-webview=1 --embedded-browser-webview-dpi-awareness=2 --always-read-main-dll --field-trial-handle=4280,i,9450362245208548512,13888186982644667327,262144 --disable-features=msPdfOOUI,msSmartScreenProtection,msWebOOUI --variations-seed-version --mojo-platform-channel-handle=4456 /prefetch:8
                    3⤵
                      PID:2792
                    • 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 --disable-gpu-sandbox --use-gl=disabled --gpu-vendor-id=5140 --gpu-device-id=140 --gpu-sub-system-id=0 --gpu-revision=0 --gpu-driver-version=10.0.19041.546 --string-annotations --noerrdialogs --user-data-dir="C:\Users\Admin\AppData\Local\com.Setup.app\EBWebView" --webview-exe-name=SteupX.exe --webview-exe-version=0.1.0 --embedded-browser-webview=1 --embedded-browser-webview-dpi-awareness=2 --gpu-preferences=UAAAAAAAAADoAAAEAAAAAAAAAAAAAAAAAABgAAEAAAAAAAAAAAAAAAAAAABCAAAAAAAAAAAAAAAAAAAAAAAAABAAAAAAAAAAEAAAAAAAAAAIAAAAAAAAAAgAAAAAAAAA --always-read-main-dll --field-trial-handle=4552,i,9450362245208548512,13888186982644667327,262144 --disable-features=msPdfOOUI,msSmartScreenProtection,msWebOOUI --variations-seed-version --mojo-platform-channel-handle=4556 /prefetch:8
                      3⤵
                      • Suspicious behavior: EnumeratesProcesses
                      PID:1416
                    • 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.Setup.app\EBWebView" --webview-exe-name=SteupX.exe --webview-exe-version=0.1.0 --embedded-browser-webview=1 --embedded-browser-webview-dpi-awareness=2 --always-read-main-dll --field-trial-handle=3852,i,9450362245208548512,13888186982644667327,262144 --disable-features=msPdfOOUI,msSmartScreenProtection,msWebOOUI --variations-seed-version --mojo-platform-channel-handle=4256 /prefetch:8
                      3⤵
                        PID:2860

                  Network

                        MITRE ATT&CK Enterprise v16

                        Replay Monitor

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                        Downloads

                        manifest.fingerprint

                        • Path C:\Program Files\chrome_Unpacker_BeginUnzipping5068_416896161\manifest.fingerprint
                        • Size 66B
                        • SHA256 22b55f5d9b1bafb80e00c1304cf5e0d6057a304a2e8757b4f021b416f4397297
                        • MD5 SHA1 SHA512 TLSH

                        manifest.json

                        • Path C:\Program Files\chrome_Unpacker_BeginUnzipping5068_416896161\manifest.json
                        • Size 76B
                        • SHA256 0d664bc422a696452111b9a48e7da9043c03786c8d5401282cff9d77bcc34b11
                        • MD5 SHA1 SHA512 TLSH

                        manifest.json

                        • Path C:\Program Files\chrome_Unpacker_BeginUnzipping5068_47169277\manifest.json
                        • Size 78B
                        • SHA256 c7e506687caffcf3906916ad3fc190a19212d67a2535479241096bd0d4418b03
                        • MD5 SHA1 SHA512 TLSH

                        manifest.json

                        • Path C:\Program Files\chrome_Unpacker_BeginUnzipping5068_480367365\manifest.json
                        • Size 102B
                        • SHA256 932322ae700a7d7606efb182239db5fd9550dd6cb5860e0a17bfb6fe3bcb5f35
                        • MD5 SHA1 SHA512 TLSH

                        settings.dat

                        • Path C:\Users\Admin\AppData\Local\com.Setup.app\EBWebView\Crashpad\settings.dat
                        • Size 280B
                        • SHA256 29a6280c8f57820f9576bfe44cd2cc316a46e165e63e5d4e77e0b484b0e682a4
                        • MD5 SHA1 SHA512

                        settings.dat

                        • Path C:\Users\Admin\AppData\Local\com.Setup.app\EBWebView\Crashpad\settings.dat
                        • Size 280B
                        • SHA256 ed64dff04c269619c8dc4311f62ffca153b578cecb582f574dd576fd4d5a2627
                        • MD5 SHA1 SHA512 TLSH

                        throttle_store.dat

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

                        the-real-index

                        • Path C:\Users\Admin\AppData\Local\com.Setup.app\EBWebView\Default\Code Cache\js\index-dir\the-real-index
                        • Size 48B
                        • SHA256 4165b942c6d9c50d29cc7e642f8e9577e4068d3accf196d5603e08d7308a216d
                        • MD5 SHA1 SHA512

                        the-real-index

                        • Path C:\Users\Admin\AppData\Local\com.Setup.app\EBWebView\Default\Code Cache\js\index-dir\the-real-index
                        • Size 72B
                        • SHA256 2548a3d3ad9f45a437df7fbb7bc774fceb1158176daac14f8a6337c997e3f427
                        • MD5 SHA1 SHA512 TLSH

                        data_0

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

                        data_1

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

                        data_2

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

                        data_3

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

                        MANIFEST-000001

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

                        Network Persistent State~RFe5962d7.TMP

                        • Path C:\Users\Admin\AppData\Local\com.Setup.app\EBWebView\Default\Network\Network Persistent State~RFe5962d7.TMP
                        • Size 59B
                        • SHA256 226eec4486509917aa336afebd6ff65777b75b65f1fb06891d2a857a9421a974
                        • MD5 SHA1 SHA512 TLSH

                        SCT Auditing Pending Reports

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

                        d893ddde-5fc0-4e42-829b-affc3d4a6d72.tmp

                        • Path C:\Users\Admin\AppData\Local\com.Setup.app\EBWebView\Default\Network\d893ddde-5fc0-4e42-829b-affc3d4a6d72.tmp
                        • Size 358B
                        • SHA256 df5529205a75053a1c518da1fd1f96a0f9ca09528d3af3908be1c83ec468690f
                        • MD5 SHA1 SHA512 TLSH

                        Preferences

                        • Path C:\Users\Admin\AppData\Local\com.Setup.app\EBWebView\Default\Preferences
                        • Size 6KB
                        • SHA256 a1654a6587cc1b36d8dc543a4d014f5dde5ccf2769db59fbeb66fabe7eb01e36
                        • MD5 SHA1 SHA512 SSDEEP TLSH

                        Preferences~RFe58ea4b.TMP

                        • Path C:\Users\Admin\AppData\Local\com.Setup.app\EBWebView\Default\Preferences~RFe58ea4b.TMP
                        • Size 6KB
                        • SHA256 055212cabbf0a230b08d26f4a87686072e67f0fd1928699365ae340715a8abf6
                        • MD5 SHA1 SHA512 SSDEEP TLSH

                        CURRENT

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

                        Local State

                        • Path C:\Users\Admin\AppData\Local\com.Setup.app\EBWebView\Local State
                        • Size 1KB
                        • SHA256 8accd3f4254577b1d751cf10bb83d397d2e3e741ae8f2a96571031bb077afcab
                        • MD5 SHA1 SHA512 TLSH

                        Local State

                        • Path C:\Users\Admin\AppData\Local\com.Setup.app\EBWebView\Local State
                        • Size 1KB
                        • SHA256 9e8797dada527821fcccff7e49763a3d40ce94152bc5a69cabd1597089085800
                        • MD5 SHA1 SHA512 TLSH

                        Local State

                        • Path C:\Users\Admin\AppData\Local\com.Setup.app\EBWebView\Local State
                        • Size 2KB
                        • SHA256 f1051a2eb6b229083df5cd2efdc4013ab8ef29ee52caaf499eda2fafb68fa7bc
                        • MD5 SHA1 SHA512 TLSH

                        Local State

                        • Path C:\Users\Admin\AppData\Local\com.Setup.app\EBWebView\Local State
                        • Size 3KB
                        • SHA256 df5edea80a8455bf331916788a3df54b2a8479b2958956ccf2663f638b893d4f
                        • MD5 SHA1 SHA512 TLSH

                        Local State

                        • Path C:\Users\Admin\AppData\Local\com.Setup.app\EBWebView\Local State
                        • Size 16KB
                        • SHA256 50efd05f21dcf9744cbfabc56815b0451297092f0cb12dc57edbaaebc24d76f4
                        • MD5 SHA1 SHA512 SSDEEP TLSH

                        crs.pb

                        • Path C:\Users\Admin\AppData\Local\com.Setup.app\EBWebView\PKIMetadata\46.0.0.0\crs.pb
                        • Size 233KB
                        • SHA256 c132e2ba94619caf6143b3bbdd9c32944e80cbf3bff87364175c42801afe2584
                        • MD5 SHA1 SHA512 SSDEEP TLSH

                        ct_config.pb

                        • Path C:\Users\Admin\AppData\Local\com.Setup.app\EBWebView\PKIMetadata\46.0.0.0\ct_config.pb
                        • Size 16KB
                        • SHA256 aaeeb46cd91a4a392223cf2885f449bf532f0878c087d50bb0cb3fc7fa873a60
                        • MD5 SHA1 SHA512 SSDEEP TLSH

                        kp_pinslist.pb

                        • Path C:\Users\Admin\AppData\Local\com.Setup.app\EBWebView\PKIMetadata\46.0.0.0\kp_pinslist.pb
                        • Size 10KB
                        • SHA256 b5b2a45a5b25becb901916b13752e3477d4126a42d088f29863bd8672320ecf6
                        • MD5 SHA1 SHA512 SSDEEP TLSH

                        keys.json

                        • Path C:\Users\Admin\AppData\Local\com.Setup.app\EBWebView\TrustTokenKeyCommitments\2026.8.3.1\keys.json
                        • Size 8KB
                        • SHA256 3d6c659801f1686ff3ac64bc3b24b1d0ae76ffdd5f0e9c399ba37d1354a15ab4
                        • MD5 SHA1 SHA512 SSDEEP TLSH

                        memory/1416-356-0x000001E5025D0000-0x000001E5025D1000-memory.dmp

                        memory/1416-362-0x000001E5025D0000-0x000001E5025D1000-memory.dmp

                        memory/1416-361-0x000001E5025D0000-0x000001E5025D1000-memory.dmp

                        memory/1416-363-0x000001E5025D0000-0x000001E5025D1000-memory.dmp

                        memory/1416-364-0x000001E5025D0000-0x000001E5025D1000-memory.dmp

                        memory/1416-354-0x000001E5025D0000-0x000001E5025D1000-memory.dmp

                        memory/1416-365-0x000001E5025D0000-0x000001E5025D1000-memory.dmp

                        memory/1416-355-0x000001E5025D0000-0x000001E5025D1000-memory.dmp

                        memory/1416-360-0x000001E5025D0000-0x000001E5025D1000-memory.dmp

                        memory/1416-366-0x000001E5025D0000-0x000001E5025D1000-memory.dmp

                        memory/1980-67-0x00007FFE8A350000-0x00007FFE8A351000-memory.dmp

                        memory/1980-68-0x00007FFE89CA0000-0x00007FFE89CA1000-memory.dmp

                        memory/2656-221-0x000001AF11E30000-0x000001AF11ECE000-memory.dmp

                        memory/2656-237-0x000001AF11E30000-0x000001AF11ECE000-memory.dmp

                        memory/2656-25-0x00007FFE88920000-0x00007FFE88921000-memory.dmp

                        memory/2656-398-0x000001AF11E30000-0x000001AF11ECE000-memory.dmp

                        memory/3504-278-0x0000014139940000-0x00000141399DE000-memory.dmp

                        memory/3504-224-0x0000014139940000-0x00000141399DE000-memory.dmp

                        memory/3504-238-0x0000014139940000-0x00000141399DE000-memory.dmp

                        memory/3504-146-0x00007FFE88920000-0x00007FFE88921000-memory.dmp