Analysis

  • max time kernel
    148s
  • max time network
    147s
  • platform
    windows11-ltsc_2024_x64
  • resource
    win11ltsc2024-20260709-en
  • resource tags

    arch:x64arch:x86image:win11ltsc2024-20260709-enlocale:en-usos:windows11-ltsc_2024-x64systemwindows
  • submitted
    31/08/2026, 00:07

General

  • Target
    OptiWin-v1.7.0.exe
  • Size 3.5MB
  • Sample260831-aefb4avsft
  • SHA256 caf291ea18d051f4fecaa667c7f1370f0f7783b415b60eaf629336c60760a978
  • 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 12 IoCs

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

  • Drops file in Windows directory 6 IoCs
  • Checks processor information in registry 2 TTPs 2 IoCs

    Processor information is often read in order to detect sandboxing environments.

  • Enumerates system info in registry 2 TTPs 3 IoCs
  • Suspicious behavior: EnumeratesProcesses 2 IoCs
  • Suspicious behavior: NtCreateUserProcessBlockNonMicrosoftBinary 1 IoCs
  • Suspicious use of WriteProcessMemory 19 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\OptiWin-v1.7.0.exe
    "C:\Users\Admin\AppData\Local\Temp\OptiWin-v1.7.0.exe"
    1⤵
    • Checks whether UAC is enabled
    • Checks processor information in registry
    • Suspicious use of WriteProcessMemory
    PID:5920
    • 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=OptiWin-v1.7.0.exe --webview-exe-version=1.0.0 --user-data-dir="C:\Users\Admin\AppData\Roaming\OptiWin-v1.7.0.exe\EBWebView" --noerrdialogs --embedded-browser-webview-dpi-awareness=2 --disable-features=msSmartScreenProtection --enable-features=MojoIpcz --mojo-named-platform-channel-pipe=5920.944.7923809226108651704 /pfhostedapp:851b9d5f1bd8ea1fe711b6e4794abb07eecdbeaa
      2⤵
      • Drops file in Windows directory
      • Enumerates system info in registry
      • Suspicious behavior: NtCreateUserProcessBlockNonMicrosoftBinary
      • Suspicious use of WriteProcessMemory
      PID:2272
      • 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\Roaming\OptiWin-v1.7.0.exe\EBWebView /prefetch:4 /pfhostedapp:851b9d5f1bd8ea1fe711b6e4794abb07eecdbeaa --monitor-self-annotation=ptype=crashpad-handler --database=C:\Users\Admin\AppData\Roaming\OptiWin-v1.7.0.exe\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,0x160,0x194,0x7ffd1db45fd8,0x7ffd1db45fe4,0x7ffd1db45ff0
        3⤵
          PID:5388
        • 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\Roaming\OptiWin-v1.7.0.exe\EBWebView" --webview-exe-name=OptiWin-v1.7.0.exe --webview-exe-version=1.0.0 --embedded-browser-webview=1 --embedded-browser-webview-dpi-awareness=2 --no-appcompat-clear --gpu-preferences=WAAAAAAAAADgAAAMAAAAAAAAAAAAAAAAAABgAAAAAAA4AAAAAAAAAAAAAAAEAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAGAAAAAAAAAAYAAAAAAAAAAgAAAAAAAAACAAAAAAAAAAIAAAAAAAAAA== --mojo-platform-channel-handle=1792 --field-trial-handle=1796,i,1689339007317489813,17846196571966738790,262144 --enable-features=MojoIpcz --disable-features=msSmartScreenProtection --variations-seed-version /prefetch:2 /pfhostedapp:851b9d5f1bd8ea1fe711b6e4794abb07eecdbeaa
          3⤵
            PID:2548
          • 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\Roaming\OptiWin-v1.7.0.exe\EBWebView" --webview-exe-name=OptiWin-v1.7.0.exe --webview-exe-version=1.0.0 --embedded-browser-webview=1 --embedded-browser-webview-dpi-awareness=2 --no-appcompat-clear --mojo-platform-channel-handle=2156 --field-trial-handle=1796,i,1689339007317489813,17846196571966738790,262144 --enable-features=MojoIpcz --disable-features=msSmartScreenProtection --variations-seed-version /prefetch:3 /pfhostedapp:851b9d5f1bd8ea1fe711b6e4794abb07eecdbeaa
            3⤵
              PID:4608
            • 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\Roaming\OptiWin-v1.7.0.exe\EBWebView" --webview-exe-name=OptiWin-v1.7.0.exe --webview-exe-version=1.0.0 --embedded-browser-webview=1 --embedded-browser-webview-dpi-awareness=2 --no-appcompat-clear --mojo-platform-channel-handle=2392 --field-trial-handle=1796,i,1689339007317489813,17846196571966738790,262144 --enable-features=MojoIpcz --disable-features=msSmartScreenProtection --variations-seed-version /prefetch:8 /pfhostedapp:851b9d5f1bd8ea1fe711b6e4794abb07eecdbeaa
              3⤵
                PID:3144
              • 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\Roaming\OptiWin-v1.7.0.exe\EBWebView" --webview-exe-name=OptiWin-v1.7.0.exe --webview-exe-version=1.0.0 --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=3520 --field-trial-handle=1796,i,1689339007317489813,17846196571966738790,262144 --enable-features=MojoIpcz --disable-features=msSmartScreenProtection --variations-seed-version /pfhostedapp:851b9d5f1bd8ea1fe711b6e4794abb07eecdbeaa /prefetch:1
                3⤵
                  PID:1876
                • 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\Roaming\OptiWin-v1.7.0.exe\EBWebView" --webview-exe-name=OptiWin-v1.7.0.exe --webview-exe-version=1.0.0 --embedded-browser-webview=1 --embedded-browser-webview-dpi-awareness=2 --no-appcompat-clear --mojo-platform-channel-handle=4596 --field-trial-handle=1796,i,1689339007317489813,17846196571966738790,262144 --enable-features=MojoIpcz --disable-features=msSmartScreenProtection --variations-seed-version /prefetch:8 /pfhostedapp:851b9d5f1bd8ea1fe711b6e4794abb07eecdbeaa
                  3⤵
                    PID:1244
                  • 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\Roaming\OptiWin-v1.7.0.exe\EBWebView" --webview-exe-name=OptiWin-v1.7.0.exe --webview-exe-version=1.0.0 --embedded-browser-webview=1 --embedded-browser-webview-dpi-awareness=2 --no-appcompat-clear --gpu-preferences=WAAAAAAAAADoAAAMAAAAAAAAAAAAAAAAAABgAAAAAAA4AAAAAAAAAAAAAABEAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAGAAAAAAAAAAYAAAAAAAAAAgAAAAAAAAACAAAAAAAAAAIAAAAAAAAAA== --mojo-platform-channel-handle=4612 --field-trial-handle=1796,i,1689339007317489813,17846196571966738790,262144 --enable-features=MojoIpcz --disable-features=msSmartScreenProtection --variations-seed-version /prefetch:8 /pfhostedapp:851b9d5f1bd8ea1fe711b6e4794abb07eecdbeaa
                    3⤵
                    • Suspicious behavior: EnumeratesProcesses
                    PID:1528

              Network

                    MITRE ATT&CK Enterprise v16

                    Replay Monitor

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                    Downloads

                    settings.dat

                    • Path C:\Users\Admin\AppData\Roaming\OptiWin-v1.7.0.exe\EBWebView\Crashpad\settings.dat
                    • Size 280B
                    • SHA256 feea837dd0b4288ea5c5291fe43685bd1d8788a534bc0d334876c468995bd91a
                    • MD5 SHA1 SHA512 TLSH

                    settings.dat

                    • Path C:\Users\Admin\AppData\Roaming\OptiWin-v1.7.0.exe\EBWebView\Crashpad\settings.dat
                    • Size 280B
                    • SHA256 27464691f388c905a41679cef3cbbb4ace47d4df238f17562982e8419417ed77
                    • MD5 SHA1 SHA512 TLSH

                    throttle_store.dat

                    • Path C:\Users\Admin\AppData\Roaming\OptiWin-v1.7.0.exe\EBWebView\Crashpad\throttle_store.dat
                    • Size 20B
                    • SHA256 41c91a9c93d76295746a149dce7ebb3b9ee2cb551d84365fff108e59a61cc304
                    • MD5 SHA1 SHA512

                    the-real-index

                    • Path C:\Users\Admin\AppData\Roaming\OptiWin-v1.7.0.exe\EBWebView\Default\Code Cache\js\index-dir\the-real-index
                    • Size 120B
                    • SHA256 d92bf81a637ad6d31f228841aa7c73b20309bcb64aed14f5bfd1a980839a6d03
                    • MD5 SHA1 SHA512 TLSH

                    the-real-index~RFe59a5bc.TMP

                    • Path C:\Users\Admin\AppData\Roaming\OptiWin-v1.7.0.exe\EBWebView\Default\Code Cache\js\index-dir\the-real-index~RFe59a5bc.TMP
                    • Size 48B
                    • SHA256 8a8f03f51b48f32ee59dd067c4f644e07325da4e82cd6013729a679434008caf
                    • MD5 SHA1 SHA512

                    MANIFEST-000001

                    • Path C:\Users\Admin\AppData\Roaming\OptiWin-v1.7.0.exe\EBWebView\Default\Extension Rules\MANIFEST-000001
                    • Size 41B
                    • SHA256 f9d31b278e215eb0d0e9cd709edfa037e828f36214ab7906f612160fead4b2b4
                    • MD5 SHA1 SHA512

                    Network Persistent State

                    • Path C:\Users\Admin\AppData\Roaming\OptiWin-v1.7.0.exe\EBWebView\Default\Network\Network Persistent State
                    • Size 111B
                    • SHA256 5dfc321417fc31359f23320ea68014ebfd793c5bbed55f77dab4180bbd4a2026
                    • MD5 SHA1 SHA512 TLSH

                    Network Persistent State~RFe5a79e4.TMP

                    • Path C:\Users\Admin\AppData\Roaming\OptiWin-v1.7.0.exe\EBWebView\Default\Network\Network Persistent State~RFe5a79e4.TMP
                    • Size 59B
                    • SHA256 226eec4486509917aa336afebd6ff65777b75b65f1fb06891d2a857a9421a974
                    • MD5 SHA1 SHA512 TLSH

                    SCT Auditing Pending Reports

                    • Path C:\Users\Admin\AppData\Roaming\OptiWin-v1.7.0.exe\EBWebView\Default\Network\SCT Auditing Pending Reports
                    • Size 2B
                    • SHA256 4f53cda18c2baa0c0354bb5f9a3ecbe5ed12ab4d8e11ba873c2f11161202b945
                    • MD5 SHA1 SHA512

                    Preferences

                    • Path C:\Users\Admin\AppData\Roaming\OptiWin-v1.7.0.exe\EBWebView\Default\Preferences
                    • Size 6KB
                    • SHA256 7d8b97d19124d9a06fad28674ef4451a6aa8ed4974633402d2af082a3979c9d4
                    • MD5 SHA1 SHA512 SSDEEP TLSH

                    CURRENT

                    • Path C:\Users\Admin\AppData\Roaming\OptiWin-v1.7.0.exe\EBWebView\Default\Sync Data\LevelDB\CURRENT
                    • Size 16B
                    • SHA256 0f1bad70c7bd1e0a69562853ec529355462fcd0423263a3d39d6d0d70b780443
                    • MD5 SHA1 SHA512

                    b714dd49-57ee-4bfc-acfb-24b56ed76c9f.tmp

                    • Path C:\Users\Admin\AppData\Roaming\OptiWin-v1.7.0.exe\EBWebView\Default\b714dd49-57ee-4bfc-acfb-24b56ed76c9f.tmp
                    • Size 6KB
                    • SHA256 36d916b4eaa9691ad680e67bae27ce76a64067c1b0d08119abba4c2a9ea305bb
                    • MD5 SHA1 SHA512 SSDEEP TLSH

                    data_0

                    • Path C:\Users\Admin\AppData\Roaming\OptiWin-v1.7.0.exe\EBWebView\GraphiteDawnCache\data_0
                    • Size 8KB
                    • SHA256 d6a5fe39cd672781b256e0e3102f7022635f1d4bb7cfcc90a80fffe4d0f3877e
                    • MD5 SHA1 SHA512 SSDEEP

                    data_1

                    • Path C:\Users\Admin\AppData\Roaming\OptiWin-v1.7.0.exe\EBWebView\GraphiteDawnCache\data_1
                    • Size 264KB
                    • SHA256 902f30c1fb0597d0734bc34b979ec5d131f8f39a4b71b338083821216ec8d61b
                    • MD5 SHA1 SHA512 SSDEEP

                    data_2

                    • Path C:\Users\Admin\AppData\Roaming\OptiWin-v1.7.0.exe\EBWebView\GraphiteDawnCache\data_2
                    • Size 8KB
                    • SHA256 ec1702806f4cc7c42a82fc2b38e89835fde7c64bb32060e0823c9077ca92efb7
                    • MD5 SHA1 SHA512 SSDEEP

                    data_3

                    • Path C:\Users\Admin\AppData\Roaming\OptiWin-v1.7.0.exe\EBWebView\GraphiteDawnCache\data_3
                    • Size 8KB
                    • SHA256 e09f42c398d688dce168570291f1f92d079987deda3099a34adb9e8c0522b30c
                    • MD5 SHA1 SHA512 SSDEEP

                    Local State

                    • Path C:\Users\Admin\AppData\Roaming\OptiWin-v1.7.0.exe\EBWebView\Local State
                    • Size 6KB
                    • SHA256 b3015714c4613b6c437896fd269563749d6a18fcadb0a0441b65e950042642bd
                    • MD5 SHA1 SHA512 SSDEEP TLSH

                    Local State

                    • Path C:\Users\Admin\AppData\Roaming\OptiWin-v1.7.0.exe\EBWebView\Local State
                    • Size 2KB
                    • SHA256 6283e709595634eb24e4fec929c87ae3868d65f412bd62371af471edaba2526f
                    • MD5 SHA1 SHA512 TLSH

                    Local State

                    • Path C:\Users\Admin\AppData\Roaming\OptiWin-v1.7.0.exe\EBWebView\Local State
                    • Size 5KB
                    • SHA256 e01fe2c262bb925f821fbaa80800120643bf5e48641e11f09a4bce00254ca2e3
                    • MD5 SHA1 SHA512 SSDEEP TLSH

                    Local State

                    • Path C:\Users\Admin\AppData\Roaming\OptiWin-v1.7.0.exe\EBWebView\Local State
                    • Size 3KB
                    • SHA256 407273a5bf64997212cbddf0ba2dddf85dcdd870a39f0ca22da64881f91bc04a
                    • MD5 SHA1 SHA512 TLSH

                    Local State

                    • Path C:\Users\Admin\AppData\Roaming\OptiWin-v1.7.0.exe\EBWebView\Local State
                    • Size 6KB
                    • SHA256 0131cb76fd7f172a8d1d51df46b13dc38f9d1b395b1a0c220e2a6025d7213abf
                    • MD5 SHA1 SHA512 SSDEEP TLSH

                    Local State~RFe5952c9.TMP

                    • Path C:\Users\Admin\AppData\Roaming\OptiWin-v1.7.0.exe\EBWebView\Local State~RFe5952c9.TMP
                    • Size 1KB
                    • SHA256 80f3bcdc12a4b292e17d57f8982cb07a5270ad01e1c70861fca3c045e7d1f6f1
                    • MD5 SHA1 SHA512 TLSH

                    memory/1244-247-0x00007FFD3FFD0000-0x00007FFD3FFD1000-memory.dmp

                    memory/1244-246-0x00007FFD3F7A0000-0x00007FFD3F7A1000-memory.dmp

                    memory/1528-274-0x0000023BBEFD0000-0x0000023BBEFD1000-memory.dmp

                    memory/1528-272-0x0000023BBEFD0000-0x0000023BBEFD1000-memory.dmp

                    memory/1528-270-0x0000023BBEFD0000-0x0000023BBEFD1000-memory.dmp

                    memory/1528-271-0x0000023BBEFD0000-0x0000023BBEFD1000-memory.dmp

                    memory/1528-273-0x0000023BBEFD0000-0x0000023BBEFD1000-memory.dmp

                    memory/1528-275-0x0000023BBEFD0000-0x0000023BBEFD1000-memory.dmp

                    memory/1528-266-0x0000023BBEFD0000-0x0000023BBEFD1000-memory.dmp

                    memory/1528-264-0x0000023BBEFD0000-0x0000023BBEFD1000-memory.dmp

                    memory/1876-113-0x00007FFD3F570000-0x00007FFD3F571000-memory.dmp

                    memory/2548-20-0x00007FFD3F570000-0x00007FFD3F571000-memory.dmp

                    memory/5920-167-0x00007FF7C4000000-0x00007FF7C6C27000-memory.dmp

                    memory/5920-196-0x00007FF7C4000000-0x00007FF7C6C27000-memory.dmp

                    memory/5920-206-0x00007FF7C4000000-0x00007FF7C6C27000-memory.dmp

                    memory/5920-0-0x00007FF7C4000000-0x00007FF7C6C27000-memory.dmp

                    memory/5920-232-0x00007FF7C4000000-0x00007FF7C6C27000-memory.dmp

                    memory/5920-233-0x00007FF7C4000000-0x00007FF7C6C27000-memory.dmp

                    memory/5920-255-0x00007FF7C4000000-0x00007FF7C6C27000-memory.dmp

                    memory/5920-205-0x00007FF7C4000000-0x00007FF7C6C27000-memory.dmp

                    memory/5920-186-0x00007FF7C4000000-0x00007FF7C6C27000-memory.dmp

                    memory/5920-276-0x00007FF7C4000000-0x00007FF7C6C27000-memory.dmp

                    memory/5920-244-0x00007FF7C4000000-0x00007FF7C6C27000-memory.dmp

                    memory/5920-285-0x00007FF7C4000000-0x00007FF7C6C27000-memory.dmp