Analysis

  • max time kernel
    150s
  • max time network
    150s
  • platform
    windows11-ltsc_2024_x64
  • resource
    win11ltsc2024-20260709-en
  • resource tags

    arch:x64arch:x86image:win11ltsc2024-20260709-enlocale:en-usos:windows11-ltsc_2024-x64systemwindows
  • submitted
    24/08/2026, 11:14

General

  • Target
    DLL Builder.exe
  • Size 2.3MB
  • Sample260824-nb12aadb42
  • SHA256 15d987a4e5c91dcf825552b948e8d83d3cb587b71d947a5ee55844eddd0a3b33
  • 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.

  • UPX packed file 2 IoCs

    Detects executables packed with UPX/modified UPX open source packer.

  • Drops file in Windows directory 24 IoCs
  • Enumerates system info in registry 2 TTPs 3 IoCs
  • Suspicious behavior: EnumeratesProcesses 2 IoCs
  • Suspicious behavior: NtCreateUserProcessBlockNonMicrosoftBinary 1 IoCs
  • Suspicious use of FindShellTrayWindow 1 IoCs
  • Suspicious use of WriteProcessMemory 28 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\DLL Builder.exe
    "C:\Users\Admin\AppData\Local\Temp\DLL Builder.exe"
    1⤵
    • Checks whether UAC is enabled
    • Suspicious use of FindShellTrayWindow
    • Suspicious use of WriteProcessMemory
    PID:2128
    • 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="DLL Builder.exe" --webview-exe-version=1.0.0 --user-data-dir="C:\Users\Admin\AppData\Local\dev.xdwdchan.dll-builder\EBWebView" --noerrdialogs --embedded-browser-webview-dpi-awareness=2 --edge-webview-custom-scheme --autoplay-policy=no-user-gesture-required --disable-features=msWebOOUI,msPdfOOUI,msSmartScreenProtection --enable-features=MojoIpcz --lang=en-US --accept-lang=en-US --mojo-named-platform-channel-pipe=2128.4832.13721444667815866798 /pfhostedapp:b09beb39cdc94dcaa646d57980be9ca7d5b27c8e
      2⤵
      • Drops file in Windows directory
      • Enumerates system info in registry
      • Suspicious behavior: NtCreateUserProcessBlockNonMicrosoftBinary
      • Suspicious use of WriteProcessMemory
      PID:4516
      • 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\dev.xdwdchan.dll-builder\EBWebView /prefetch:4 /pfhostedapp:b09beb39cdc94dcaa646d57980be9ca7d5b27c8e --monitor-self-annotation=ptype=crashpad-handler --database=C:\Users\Admin\AppData\Local\dev.xdwdchan.dll-builder\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,0x160,0x194,0x7ffec0025fd8,0x7ffec0025fe4,0x7ffec0025ff0
        3⤵
          PID:3672
        • 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\dev.xdwdchan.dll-builder\EBWebView" --webview-exe-name="DLL Builder.exe" --webview-exe-version=1.0.0 --embedded-browser-webview=1 --embedded-browser-webview-dpi-awareness=2 --edge-webview-custom-scheme --no-appcompat-clear --gpu-preferences=WAAAAAAAAADgAAAMAAAAAAAAAAAAAAAAAABgAAAAAAA4AAAAAAAAAAAAAAAEAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAGAAAAAAAAAAYAAAAAAAAAAgAAAAAAAAACAAAAAAAAAAIAAAAAAAAAA== --mojo-platform-channel-handle=1776 --field-trial-handle=1780,i,13159754612378029425,13147724133430029043,262144 --enable-features=MojoIpcz --disable-features=msPdfOOUI,msSmartScreenProtection,msWebOOUI --variations-seed-version /prefetch:2 /pfhostedapp:b09beb39cdc94dcaa646d57980be9ca7d5b27c8e
          3⤵
            PID:2784
          • 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\dev.xdwdchan.dll-builder\EBWebView" --webview-exe-name="DLL Builder.exe" --webview-exe-version=1.0.0 --embedded-browser-webview=1 --embedded-browser-webview-dpi-awareness=2 --edge-webview-custom-scheme --no-appcompat-clear --mojo-platform-channel-handle=2072 --field-trial-handle=1780,i,13159754612378029425,13147724133430029043,262144 --enable-features=MojoIpcz --disable-features=msPdfOOUI,msSmartScreenProtection,msWebOOUI --variations-seed-version /prefetch:3 /pfhostedapp:b09beb39cdc94dcaa646d57980be9ca7d5b27c8e
            3⤵
              PID:1348
            • 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\dev.xdwdchan.dll-builder\EBWebView" --webview-exe-name="DLL Builder.exe" --webview-exe-version=1.0.0 --embedded-browser-webview=1 --embedded-browser-webview-dpi-awareness=2 --edge-webview-custom-scheme --no-appcompat-clear --mojo-platform-channel-handle=2264 --field-trial-handle=1780,i,13159754612378029425,13147724133430029043,262144 --enable-features=MojoIpcz --disable-features=msPdfOOUI,msSmartScreenProtection,msWebOOUI --variations-seed-version /prefetch:8 /pfhostedapp:b09beb39cdc94dcaa646d57980be9ca7d5b27c8e
              3⤵
                PID:3308
              • 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\dev.xdwdchan.dll-builder\EBWebView" --webview-exe-name="DLL Builder.exe" --webview-exe-version=1.0.0 --embedded-browser-webview=1 --embedded-browser-webview-dpi-awareness=2 --edge-webview-custom-scheme --no-appcompat-clear --autoplay-policy=no-user-gesture-required --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=3436 --field-trial-handle=1780,i,13159754612378029425,13147724133430029043,262144 --enable-features=MojoIpcz --disable-features=msPdfOOUI,msSmartScreenProtection,msWebOOUI --variations-seed-version /pfhostedapp:b09beb39cdc94dcaa646d57980be9ca7d5b27c8e /prefetch:1
                3⤵
                  PID:1592
                • 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=unzip.mojom.Unzipper --lang=en-US --service-sandbox-type=service --noerrdialogs --user-data-dir="C:\Users\Admin\AppData\Local\dev.xdwdchan.dll-builder\EBWebView" --webview-exe-name="DLL Builder.exe" --webview-exe-version=1.0.0 --embedded-browser-webview=1 --embedded-browser-webview-dpi-awareness=2 --edge-webview-custom-scheme --no-appcompat-clear --mojo-platform-channel-handle=4308 --field-trial-handle=1780,i,13159754612378029425,13147724133430029043,262144 --enable-features=MojoIpcz --disable-features=msPdfOOUI,msSmartScreenProtection,msWebOOUI --variations-seed-version /prefetch:8 /pfhostedapp:b09beb39cdc94dcaa646d57980be9ca7d5b27c8e
                  3⤵
                    PID:4144
                  • 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=unzip.mojom.Unzipper --lang=en-US --service-sandbox-type=service --noerrdialogs --user-data-dir="C:\Users\Admin\AppData\Local\dev.xdwdchan.dll-builder\EBWebView" --webview-exe-name="DLL Builder.exe" --webview-exe-version=1.0.0 --embedded-browser-webview=1 --embedded-browser-webview-dpi-awareness=2 --edge-webview-custom-scheme --no-appcompat-clear --mojo-platform-channel-handle=4296 --field-trial-handle=1780,i,13159754612378029425,13147724133430029043,262144 --enable-features=MojoIpcz --disable-features=msPdfOOUI,msSmartScreenProtection,msWebOOUI --variations-seed-version /prefetch:8 /pfhostedapp:b09beb39cdc94dcaa646d57980be9ca7d5b27c8e
                    3⤵
                      PID:4176
                    • 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=unzip.mojom.Unzipper --lang=en-US --service-sandbox-type=service --noerrdialogs --user-data-dir="C:\Users\Admin\AppData\Local\dev.xdwdchan.dll-builder\EBWebView" --webview-exe-name="DLL Builder.exe" --webview-exe-version=1.0.0 --embedded-browser-webview=1 --embedded-browser-webview-dpi-awareness=2 --edge-webview-custom-scheme --no-appcompat-clear --mojo-platform-channel-handle=1092 --field-trial-handle=1780,i,13159754612378029425,13147724133430029043,262144 --enable-features=MojoIpcz --disable-features=msPdfOOUI,msSmartScreenProtection,msWebOOUI --variations-seed-version /prefetch:8 /pfhostedapp:b09beb39cdc94dcaa646d57980be9ca7d5b27c8e
                      3⤵
                        PID:808
                      • 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 --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=10.0.26100.1301 --noerrdialogs --user-data-dir="C:\Users\Admin\AppData\Local\dev.xdwdchan.dll-builder\EBWebView" --webview-exe-name="DLL Builder.exe" --webview-exe-version=1.0.0 --embedded-browser-webview=1 --embedded-browser-webview-dpi-awareness=2 --edge-webview-custom-scheme --no-appcompat-clear --gpu-preferences=WAAAAAAAAADoAAAMAAAAAAAAAAAAAAAAAABgAAAAAAA4AAAAAAAAAAAAAABEAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAGAAAAAAAAAAYAAAAAAAAAAgAAAAAAAAACAAAAAAAAAAIAAAAAAAAAA== --mojo-platform-channel-handle=4536 --field-trial-handle=1780,i,13159754612378029425,13147724133430029043,262144 --enable-features=MojoIpcz --disable-features=msPdfOOUI,msSmartScreenProtection,msWebOOUI --variations-seed-version /prefetch:8 /pfhostedapp:b09beb39cdc94dcaa646d57980be9ca7d5b27c8e
                        3⤵
                        • Suspicious behavior: EnumeratesProcesses
                        PID:4996
                      • 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=unzip.mojom.Unzipper --lang=en-US --service-sandbox-type=service --noerrdialogs --user-data-dir="C:\Users\Admin\AppData\Local\dev.xdwdchan.dll-builder\EBWebView" --webview-exe-name="DLL Builder.exe" --webview-exe-version=1.0.0 --embedded-browser-webview=1 --embedded-browser-webview-dpi-awareness=2 --edge-webview-custom-scheme --no-appcompat-clear --mojo-platform-channel-handle=2100 --field-trial-handle=1780,i,13159754612378029425,13147724133430029043,262144 --enable-features=MojoIpcz --disable-features=msPdfOOUI,msSmartScreenProtection,msWebOOUI --variations-seed-version /prefetch:8 /pfhostedapp:b09beb39cdc94dcaa646d57980be9ca7d5b27c8e
                        3⤵
                          PID:2360

                    Network

                          MITRE ATT&CK Enterprise v16

                          Replay Monitor

                          Loading Replay Monitor...

                          Downloads

                          settings.dat

                          • Path C:\Users\Admin\AppData\Local\dev.xdwdchan.dll-builder\EBWebView\Crashpad\settings.dat
                          • Size 280B
                          • SHA256 eabfc6e50cc062ebeb3e82391bab24658a7b8261f6970d76c57ddafca425abf9
                          • MD5 SHA1 SHA512 TLSH

                          settings.dat

                          • Path C:\Users\Admin\AppData\Local\dev.xdwdchan.dll-builder\EBWebView\Crashpad\settings.dat
                          • Size 280B
                          • SHA256 a6b03d823c02c4d47772c49173c953dd3ad704a2bd5b7dc60c667fb3055a198d
                          • MD5 SHA1 SHA512

                          throttle_store.dat

                          • Path C:\Users\Admin\AppData\Local\dev.xdwdchan.dll-builder\EBWebView\Crashpad\throttle_store.dat
                          • Size 20B
                          • SHA256 41c91a9c93d76295746a149dce7ebb3b9ee2cb551d84365fff108e59a61cc304
                          • MD5 SHA1 SHA512

                          33c1d97b-1578-43ad-902b-a5f6bd685268.tmp

                          • Path C:\Users\Admin\AppData\Local\dev.xdwdchan.dll-builder\EBWebView\Default\33c1d97b-1578-43ad-902b-a5f6bd685268.tmp
                          • Size 6KB
                          • SHA256 eb119d99e5e0efeb0f63859a704b2cb4b67de0f54ccd056be04b31915a1c1aad
                          • MD5 SHA1 SHA512 SSDEEP TLSH

                          CURRENT

                          • Path C:\Users\Admin\AppData\Local\dev.xdwdchan.dll-builder\EBWebView\Default\Extension Rules\CURRENT
                          • Size 16B
                          • SHA256 0f1bad70c7bd1e0a69562853ec529355462fcd0423263a3d39d6d0d70b780443
                          • MD5 SHA1 SHA512

                          MANIFEST-000001

                          • Path C:\Users\Admin\AppData\Local\dev.xdwdchan.dll-builder\EBWebView\Default\Extension Scripts\MANIFEST-000001
                          • Size 41B
                          • SHA256 f9d31b278e215eb0d0e9cd709edfa037e828f36214ab7906f612160fead4b2b4
                          • MD5 SHA1 SHA512

                          Network Persistent State

                          • Path C:\Users\Admin\AppData\Local\dev.xdwdchan.dll-builder\EBWebView\Default\Network\Network Persistent State
                          • Size 111B
                          • SHA256 5dfc321417fc31359f23320ea68014ebfd793c5bbed55f77dab4180bbd4a2026
                          • MD5 SHA1 SHA512 TLSH

                          Network Persistent State

                          • Path C:\Users\Admin\AppData\Local\dev.xdwdchan.dll-builder\EBWebView\Default\Network\Network Persistent State
                          • Size 59B
                          • SHA256 226eec4486509917aa336afebd6ff65777b75b65f1fb06891d2a857a9421a974
                          • MD5 SHA1 SHA512 TLSH

                          SCT Auditing Pending Reports

                          • Path C:\Users\Admin\AppData\Local\dev.xdwdchan.dll-builder\EBWebView\Default\Network\SCT Auditing Pending Reports
                          • Size 2B
                          • SHA256 4f53cda18c2baa0c0354bb5f9a3ecbe5ed12ab4d8e11ba873c2f11161202b945
                          • MD5 SHA1 SHA512

                          Preferences

                          • Path C:\Users\Admin\AppData\Local\dev.xdwdchan.dll-builder\EBWebView\Default\Preferences
                          • Size 6KB
                          • SHA256 fba26ec42292f2a95730d3920989c92b514f881b68ab40d821df992b0cc486e1
                          • MD5 SHA1 SHA512 SSDEEP TLSH

                          data_0

                          • Path C:\Users\Admin\AppData\Local\dev.xdwdchan.dll-builder\EBWebView\GraphiteDawnCache\data_0
                          • Size 8KB
                          • SHA256 d6a5fe39cd672781b256e0e3102f7022635f1d4bb7cfcc90a80fffe4d0f3877e
                          • MD5 SHA1 SHA512 SSDEEP

                          data_1

                          • Path C:\Users\Admin\AppData\Local\dev.xdwdchan.dll-builder\EBWebView\GraphiteDawnCache\data_1
                          • Size 264KB
                          • SHA256 902f30c1fb0597d0734bc34b979ec5d131f8f39a4b71b338083821216ec8d61b
                          • MD5 SHA1 SHA512 SSDEEP

                          data_2

                          • Path C:\Users\Admin\AppData\Local\dev.xdwdchan.dll-builder\EBWebView\GraphiteDawnCache\data_2
                          • Size 8KB
                          • SHA256 ec1702806f4cc7c42a82fc2b38e89835fde7c64bb32060e0823c9077ca92efb7
                          • MD5 SHA1 SHA512 SSDEEP

                          data_3

                          • Path C:\Users\Admin\AppData\Local\dev.xdwdchan.dll-builder\EBWebView\GraphiteDawnCache\data_3
                          • Size 8KB
                          • SHA256 e09f42c398d688dce168570291f1f92d079987deda3099a34adb9e8c0522b30c
                          • MD5 SHA1 SHA512 SSDEEP

                          Local State

                          • Path C:\Users\Admin\AppData\Local\dev.xdwdchan.dll-builder\EBWebView\Local State
                          • Size 2KB
                          • SHA256 ee66b69999c374ff6dc11a07f5fb2a76fb95ec46ca0170ba8239083a57eb036d
                          • MD5 SHA1 SHA512 TLSH

                          Local State

                          • Path C:\Users\Admin\AppData\Local\dev.xdwdchan.dll-builder\EBWebView\Local State
                          • Size 3KB
                          • SHA256 37a523e0a8d0c7699094382c8bb1abd568d4d6c6c552a5e93cc4f54a9765b82e
                          • MD5 SHA1 SHA512 TLSH

                          Local State

                          • Path C:\Users\Admin\AppData\Local\dev.xdwdchan.dll-builder\EBWebView\Local State
                          • Size 15KB
                          • SHA256 4b427c7ae91d83f6782d57ee6e542f04f6cda8b2ee1a2421bf8903b73af457d2
                          • MD5 SHA1 SHA512 SSDEEP TLSH

                          Local State~RFe5a5286.TMP

                          • Path C:\Users\Admin\AppData\Local\dev.xdwdchan.dll-builder\EBWebView\Local State~RFe5a5286.TMP
                          • Size 1KB
                          • SHA256 3b5e23b8ecac58eb222888e7c93e6396ee218cda82804a601f90b992357cd4d2
                          • MD5 SHA1 SHA512 TLSH

                          memory/1592-95-0x00007FFEE1B50000-0x00007FFEE1B51000-memory.dmp

                          memory/2128-0-0x00007FF705C50000-0x00007FF706744000-memory.dmp

                          memory/2128-183-0x00007FF705C50000-0x00007FF706744000-memory.dmp

                          memory/2784-27-0x00007FFEE1B50000-0x00007FFEE1B51000-memory.dmp

                          memory/4144-218-0x00007FFEE1650000-0x00007FFEE1651000-memory.dmp

                          memory/4144-217-0x00007FFEE1530000-0x00007FFEE1531000-memory.dmp

                          memory/4996-326-0x0000011BDFD00000-0x0000011BDFD01000-memory.dmp

                          memory/4996-328-0x0000011BDFD00000-0x0000011BDFD01000-memory.dmp

                          memory/4996-337-0x0000011BDFD00000-0x0000011BDFD01000-memory.dmp

                          memory/4996-336-0x0000011BDFD00000-0x0000011BDFD01000-memory.dmp

                          memory/4996-335-0x0000011BDFD00000-0x0000011BDFD01000-memory.dmp

                          memory/4996-333-0x0000011BDFD00000-0x0000011BDFD01000-memory.dmp

                          memory/4996-332-0x0000011BDFD00000-0x0000011BDFD01000-memory.dmp

                          memory/4996-334-0x0000011BDFD00000-0x0000011BDFD01000-memory.dmp