Analysis

  • max time kernel
    148s
  • max time network
    130s
  • platform
    windows11-ltsc_2024_x64
  • resource
    win11ltsc2024-20260911-en
  • resource tags

    arch:x64arch:x86image:win11ltsc2024-20260911-enlocale:en-usos:windows11-ltsc_2024-x64systemwindows
  • submitted
    25/09/2026, 12:33

General

  • Target
    download.html
  • Size 91B
  • Sample260925-prc5tsstaw
  • SHA256 edd0278df4071d9b6ab8efad5e4259f1bf47b3e072b17d966fc3cc7644310d68
  • MD5 SHA1 SHA512 TLSH
Score
3/10

Malware Config

Signatures

  • Browser Information Discovery 1 TTPs

    Enumerate browser information.

  • System Time Discovery 1 TTPs 1 IoCs

    Adversary may gather the system time and/or time zone settings from a local or remote system.

  • Enumerates system info in registry 2 TTPs 3 IoCs
  • Modifies data under HKEY_USERS 2 IoCs
  • Modifies registry class 1 IoCs
  • Suspicious behavior: EnumeratesProcesses 2 IoCs
  • Suspicious behavior: NtCreateUserProcessBlockNonMicrosoftBinary 5 IoCs
  • Suspicious use of FindShellTrayWindow 33 IoCs
  • Suspicious use of SendNotifyMessage 16 IoCs
  • Suspicious use of WriteProcessMemory 30 IoCs

Processes

  • C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
    "C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --start-maximized --disable-default-apps --disable-component-update --simulate-outdated-no-au='Tue, 31 Dec 2099 23:59:59 GMT' --single-argument C:\Users\Admin\AppData\Local\Temp\download.html
    1⤵
    • Enumerates system info in registry
    • Modifies data under HKEY_USERS
    • Modifies registry class
    • Suspicious behavior: NtCreateUserProcessBlockNonMicrosoftBinary
    • Suspicious use of FindShellTrayWindow
    • Suspicious use of SendNotifyMessage
    • Suspicious use of WriteProcessMemory
    PID:5552
    • C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
      "C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --type=crashpad-handler "--user-data-dir=C:\Users\Admin\AppData\Local\Microsoft\Edge\User Data" /prefetch:4 --monitor-self-annotation=ptype=crashpad-handler "--database=C:\Users\Admin\AppData\Local\Microsoft\Edge\User Data\Crashpad" --annotation=IsOfficialBuild=1 --annotation=channel= --annotation=chromium-version=139.0.7258.155 "--annotation=exe=C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --annotation=plat=Win64 --annotation=prod=Edge --annotation=ver=139.0.3405.125 --initial-client-data=0x260,0x264,0x268,0x25c,0x2cc,0x7ff91553c188,0x7ff91553c194,0x7ff91553c1a0
      2⤵
        PID:4312
      • C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
        "C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --type=gpu-process --no-pre-read-main-dll --force-high-res-timeticks=disabled --gpu-preferences=SAAAAAAAAADgAAAIAAAAAAAAAAAAAGAAAQAAAAAAAAAEAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAQAAAAAAAAABAAAAAAAAAACAAAAAAAAAAIAAAAAAAAAA== --always-read-main-dll --metrics-shmem-handle=1620,i,16470756879283577311,3979468921701983547,262144 --field-trial-handle=2532,i,7646054750717017314,8961806118981807525,262144 --variations-seed-version --mojo-platform-channel-handle=2528 /prefetch:2
        2⤵
          PID:5956
        • C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
          "C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --type=utility --utility-sub-type=network.mojom.NetworkService --lang=en-US --service-sandbox-type=none --no-pre-read-main-dll --force-high-res-timeticks=disabled --always-read-main-dll --metrics-shmem-handle=1860,i,3252057459190396787,17600250734161629964,524288 --field-trial-handle=2532,i,7646054750717017314,8961806118981807525,262144 --variations-seed-version --mojo-platform-channel-handle=2584 /prefetch:11
          2⤵
          • System Time Discovery
          PID:4656
        • C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
          "C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --type=utility --utility-sub-type=storage.mojom.StorageService --lang=en-US --service-sandbox-type=service --no-pre-read-main-dll --force-high-res-timeticks=disabled --always-read-main-dll --metrics-shmem-handle=2264,i,1635718642760663979,6380859628003068851,524288 --field-trial-handle=2532,i,7646054750717017314,8961806118981807525,262144 --variations-seed-version --mojo-platform-channel-handle=2756 /prefetch:13
          2⤵
            PID:1928
          • C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
            "C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --type=renderer --pdf-upsell-enabled --force-high-res-timeticks=disabled --video-capture-use-gpu-memory-buffer --lang=en-US --js-flags=--ms-user-locale= --device-scale-factor=1 --num-raster-threads=4 --enable-main-frame-before-activation --renderer-client-id=6 --always-read-main-dll --metrics-shmem-handle=3544,i,13949340689867553523,13199984989979798559,2097152 --field-trial-handle=2532,i,7646054750717017314,8961806118981807525,262144 --variations-seed-version --mojo-platform-channel-handle=3616 /prefetch:1
            2⤵
              PID:564
            • C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
              "C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --type=renderer --pdf-upsell-enabled --force-high-res-timeticks=disabled --video-capture-use-gpu-memory-buffer --lang=en-US --js-flags=--ms-user-locale= --device-scale-factor=1 --num-raster-threads=4 --enable-main-frame-before-activation --renderer-client-id=5 --always-read-main-dll --metrics-shmem-handle=3548,i,11176830301170125683,4832064791113336731,2097152 --field-trial-handle=2532,i,7646054750717017314,8961806118981807525,262144 --variations-seed-version --mojo-platform-channel-handle=3620 /prefetch:1
              2⤵
                PID:3492
              • C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
                "C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --type=renderer --pdf-upsell-enabled --force-high-res-timeticks=disabled --video-capture-use-gpu-memory-buffer --lang=en-US --js-flags=--ms-user-locale= --device-scale-factor=1 --num-raster-threads=4 --enable-main-frame-before-activation --renderer-client-id=7 --always-read-main-dll --metrics-shmem-handle=4364,i,4512306750338769646,5395719411021692081,2097152 --field-trial-handle=2532,i,7646054750717017314,8961806118981807525,262144 --variations-seed-version --mojo-platform-channel-handle=4816 /prefetch:1
                2⤵
                  PID:6064
                • C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
                  "C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --type=renderer --extension-process --renderer-sub-type=extension --pdf-upsell-enabled --force-high-res-timeticks=disabled --video-capture-use-gpu-memory-buffer --lang=en-US --js-flags=--ms-user-locale= --device-scale-factor=1 --num-raster-threads=4 --enable-main-frame-before-activation --renderer-client-id=8 --always-read-main-dll --metrics-shmem-handle=4380,i,4898219623912052485,15780532733150544700,2097152 --field-trial-handle=2532,i,7646054750717017314,8961806118981807525,262144 --variations-seed-version --mojo-platform-channel-handle=4868 /prefetch:9
                  2⤵
                    PID:2468
                  • C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
                    "C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --type=utility --utility-sub-type=asset_store.mojom.AssetStoreService --lang=en-US --service-sandbox-type=asset_store_service --force-high-res-timeticks=disabled --always-read-main-dll --metrics-shmem-handle=4372,i,590625871880124628,9177310524930061689,524288 --field-trial-handle=2532,i,7646054750717017314,8961806118981807525,262144 --variations-seed-version --mojo-platform-channel-handle=5376 /prefetch:14
                    2⤵
                      PID:5868
                    • C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
                      "C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --type=utility --utility-sub-type=entity_extraction_service.mojom.Extractor --lang=en-US --service-sandbox-type=entity_extraction --onnx-enabled-for-ee --force-high-res-timeticks=disabled --always-read-main-dll --metrics-shmem-handle=5340,i,13694670933590793589,1284071948829780462,524288 --field-trial-handle=2532,i,7646054750717017314,8961806118981807525,262144 --variations-seed-version --mojo-platform-channel-handle=5404 /prefetch:14
                      2⤵
                        PID:5944
                      • C:\Program Files (x86)\Microsoft\Edge\Application\139.0.3405.125\identity_helper.exe
                        "C:\Program Files (x86)\Microsoft\Edge\Application\139.0.3405.125\identity_helper.exe" --type=utility --utility-sub-type=winrt_app_id.mojom.WinrtAppIdService --lang=en-US --service-sandbox-type=none --force-high-res-timeticks=disabled --always-read-main-dll --metrics-shmem-handle=5980,i,13716718787834905308,6469153729927083814,524288 --field-trial-handle=2532,i,7646054750717017314,8961806118981807525,262144 --variations-seed-version --mojo-platform-channel-handle=5992 /prefetch:14
                        2⤵
                          PID:4940
                        • C:\Program Files (x86)\Microsoft\Edge\Application\139.0.3405.125\identity_helper.exe
                          "C:\Program Files (x86)\Microsoft\Edge\Application\139.0.3405.125\identity_helper.exe" --type=utility --utility-sub-type=winrt_app_id.mojom.WinrtAppIdService --lang=en-US --service-sandbox-type=none --force-high-res-timeticks=disabled --always-read-main-dll --metrics-shmem-handle=5980,i,13716718787834905308,6469153729927083814,524288 --field-trial-handle=2532,i,7646054750717017314,8961806118981807525,262144 --variations-seed-version --mojo-platform-channel-handle=5992 /prefetch:14
                          2⤵
                            PID:3176
                          • C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
                            "C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --type=utility --utility-sub-type=chrome.mojom.UtilWin --lang=en-US --service-sandbox-type=none --message-loop-type-ui --force-high-res-timeticks=disabled --always-read-main-dll --metrics-shmem-handle=4820,i,14682059580684358726,1943912606754419098,524288 --field-trial-handle=2532,i,7646054750717017314,8961806118981807525,262144 --variations-seed-version --mojo-platform-channel-handle=5144 /prefetch:14
                            2⤵
                              PID:5544
                            • C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
                              "C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --type=utility --utility-sub-type=chrome.mojom.UtilWin --lang=en-US --service-sandbox-type=none --message-loop-type-ui --force-high-res-timeticks=disabled --always-read-main-dll --metrics-shmem-handle=4368,i,14565072343074125036,7320039657710537353,524288 --field-trial-handle=2532,i,7646054750717017314,8961806118981807525,262144 --variations-seed-version --mojo-platform-channel-handle=3768 /prefetch:14
                              2⤵
                                PID:4076
                              • C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
                                "C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --type=utility --utility-sub-type=chrome.mojom.UtilWin --lang=en-US --service-sandbox-type=none --message-loop-type-ui --force-high-res-timeticks=disabled --always-read-main-dll --metrics-shmem-handle=4732,i,11305071446917431808,1750939706434807796,524288 --field-trial-handle=2532,i,7646054750717017314,8961806118981807525,262144 --variations-seed-version --mojo-platform-channel-handle=5992 /prefetch:14
                                2⤵
                                  PID:3664
                                • C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
                                  "C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --type=utility --utility-sub-type=edge_search_indexer.mojom.SearchIndexerInterfaceBroker --lang=en-US --service-sandbox-type=search_indexer --message-loop-type-ui --force-high-res-timeticks=disabled --always-read-main-dll --metrics-shmem-handle=5564,i,7069326611974554141,8750119643666941554,524288 --field-trial-handle=2532,i,7646054750717017314,8961806118981807525,262144 --variations-seed-version --mojo-platform-channel-handle=5172 /prefetch:14
                                  2⤵
                                    PID:1916
                                  • C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
                                    "C:\Program Files (x86)\Microsoft\Edge\Application\msedge.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 --force-high-res-timeticks=disabled --gpu-preferences=SAAAAAAAAADoAAAIAAAAAAAAAAAAAGAAAQAAAAAAAACEAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAQAAAAAAAAABAAAAAAAAAACAAAAAAAAAAIAAAAAAAAAA== --always-read-main-dll --metrics-shmem-handle=5508,i,9754069423271898317,3759795269071010474,262144 --field-trial-handle=2532,i,7646054750717017314,8961806118981807525,262144 --variations-seed-version --mojo-platform-channel-handle=3768 /prefetch:10
                                    2⤵
                                    • Suspicious behavior: EnumeratesProcesses
                                    PID:6036
                                • C:\Program Files (x86)\Microsoft\Edge\Application\139.0.3405.125\elevation_service.exe
                                  "C:\Program Files (x86)\Microsoft\Edge\Application\139.0.3405.125\elevation_service.exe"
                                  1⤵
                                    PID:4564
                                  • C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
                                    "C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --no-startup-window --win-session-start
                                    1⤵
                                      PID:3004

                                    Network

                                          MITRE ATT&CK Enterprise v16

                                          Replay Monitor

                                          Loading Replay Monitor...

                                          Downloads

                                          blocklist

                                          • Path C:\Users\Admin\AppData\Local\Microsoft\Edge\User Data\Ad Blocking\blocklist
                                          • Size 105KB
                                          • SHA256 25559293c954898f2da344ed5fe3faf3c076ca2a1868befb99178bedacb3d026
                                          • MD5 SHA1 SHA512 SSDEEP TLSH

                                          settings.dat

                                          • Path C:\Users\Admin\AppData\Local\Microsoft\Edge\User Data\Crashpad\settings.dat
                                          • Size 280B
                                          • SHA256 2664448b8ab4f4edce89a8c875c31ed1e748ff3060fa1567c434149210bb4fc5
                                          • MD5 SHA1 SHA512 TLSH

                                          settings.dat

                                          • Path C:\Users\Admin\AppData\Local\Microsoft\Edge\User Data\Crashpad\settings.dat
                                          • Size 280B
                                          • SHA256 a9db3b181fe23d2da858b764c2d3bc2baae4a7e217d8cc5885ed34c7b21166b7
                                          • MD5 SHA1 SHA512 TLSH

                                          BookmarkMergedSurfaceOrdering

                                          • Path C:\Users\Admin\AppData\Local\Microsoft\Edge\User Data\Default\BookmarkMergedSurfaceOrdering
                                          • Size 6B
                                          • SHA256 4489f9e3e454748b3521eb214e0a5694d562cff3d9ff511cb456953c8f534c00
                                          • MD5 SHA1 SHA512

                                          the-real-index

                                          • Path C:\Users\Admin\AppData\Local\Microsoft\Edge\User Data\Default\Code Cache\js\index-dir\the-real-index
                                          • Size 3KB
                                          • SHA256 d105f0dc75bfc5e7e24311ed81d5f6cf7ae91a0d4e7b91a9d355bf360376baf2
                                          • MD5 SHA1 SHA512 TLSH

                                          the-real-index~RFe595b16.TMP

                                          • Path C:\Users\Admin\AppData\Local\Microsoft\Edge\User Data\Default\Code Cache\js\index-dir\the-real-index~RFe595b16.TMP
                                          • Size 3KB
                                          • SHA256 0f3af3041a7301909aa9093495ac6081cf4f595e406b83d4d7d4790b0b711d61
                                          • MD5 SHA1 SHA512 TLSH

                                          SiteList-Enterprise.json

                                          • Path C:\Users\Admin\AppData\Local\Microsoft\Edge\User Data\Default\DualEngine\SiteList-Enterprise.json
                                          • Size 2B
                                          • SHA256 44136fa355b3678a1146ad16f7e8649e94fb4fc21fe77e8310c060f61caaff8a
                                          • MD5 SHA1 SHA512

                                          Edge Profile.ico

                                          • Path C:\Users\Admin\AppData\Local\Microsoft\Edge\User Data\Default\Edge Profile.ico
                                          • Size 70KB
                                          • SHA256 31a226211c491e1b0832d4cd3cf34d97165e24a7ce4ec655259cd188f3a2bd88
                                          • MD5 SHA1 SHA512 SSDEEP TLSH

                                          Network Persistent State

                                          • Path C:\Users\Admin\AppData\Local\Microsoft\Edge\User Data\Default\Network\Network Persistent State
                                          • Size 1KB
                                          • SHA256 f5def24ba32b8c497ec13cd5540ce4582fd1c64da4331c98db11f6ba8c6d7260
                                          • MD5 SHA1 SHA512 TLSH

                                          SCT Auditing Pending Reports

                                          • Path C:\Users\Admin\AppData\Local\Microsoft\Edge\User Data\Default\Network\SCT Auditing Pending Reports
                                          • Size 2B
                                          • SHA256 4f53cda18c2baa0c0354bb5f9a3ecbe5ed12ab4d8e11ba873c2f11161202b945
                                          • MD5 SHA1 SHA512

                                          Sdch Dictionaries

                                          • Path C:\Users\Admin\AppData\Local\Microsoft\Edge\User Data\Default\Network\Sdch Dictionaries
                                          • Size 40B
                                          • SHA256 6028bd681dbf11a0a58dde8a0cd884115c04caa59d080ba51bde1b086ce0079d
                                          • MD5 SHA1 SHA512

                                          Preferences

                                          • Path C:\Users\Admin\AppData\Local\Microsoft\Edge\User Data\Default\Preferences
                                          • Size 11KB
                                          • SHA256 78734a7183e53ed07576571fcfb8abe39ec5e3e87f59b6a47e797676a06888b1
                                          • MD5 SHA1 SHA512 SSDEEP TLSH

                                          Preferences

                                          • Path C:\Users\Admin\AppData\Local\Microsoft\Edge\User Data\Default\Preferences
                                          • Size 11KB
                                          • SHA256 6899a712d3e73825f81c9be128c59d65e4edb04d6a2d6c2d8fdc2f76a0bb5d33
                                          • MD5 SHA1 SHA512 SSDEEP TLSH

                                          Preferences

                                          • Path C:\Users\Admin\AppData\Local\Microsoft\Edge\User Data\Default\Preferences
                                          • Size 11KB
                                          • SHA256 2c4f6425ab316b1778c40c5ce4dc1ea28f0683331d100b25b0d79f4eef4c47f6
                                          • MD5 SHA1 SHA512 SSDEEP TLSH

                                          Secure Preferences

                                          • Path C:\Users\Admin\AppData\Local\Microsoft\Edge\User Data\Default\Secure Preferences
                                          • Size 23KB
                                          • SHA256 d0152641e535ea5060ee5502591c842685b6709bdc79925e4d503a0aa8b57c21
                                          • MD5 SHA1 SHA512 SSDEEP TLSH

                                          sync_diagnostic.log

                                          • Path C:\Users\Admin\AppData\Local\Microsoft\Edge\User Data\Default\Sync Data\Logs\sync_diagnostic.log
                                          • Size 4KB
                                          • SHA256 1d0b2741ce8e5316f133201fb7a269e1c9b83137573e212d1fda08746f7f5993
                                          • MD5 SHA1 SHA512 SSDEEP TLSH

                                          CURRENT

                                          • Path C:\Users\Admin\AppData\Local\Microsoft\Edge\User Data\Default\Sync Extension Settings\ghbmnnjooekpmoecnnnilnnbdlolhkhi\CURRENT
                                          • Size 16B
                                          • SHA256 0f1bad70c7bd1e0a69562853ec529355462fcd0423263a3d39d6d0d70b780443
                                          • MD5 SHA1 SHA512

                                          MANIFEST-000001

                                          • Path C:\Users\Admin\AppData\Local\Microsoft\Edge\User Data\Default\Sync Extension Settings\ghbmnnjooekpmoecnnnilnnbdlolhkhi\MANIFEST-000001
                                          • Size 41B
                                          • SHA256 f9d31b278e215eb0d0e9cd709edfa037e828f36214ab7906f612160fead4b2b4
                                          • MD5 SHA1 SHA512

                                          OperationConfig

                                          • Path C:\Users\Admin\AppData\Local\Microsoft\Edge\User Data\Edge Cloud Config\OperationConfig
                                          • Size 22KB
                                          • SHA256 d988156066b7fd22de278fbc96759d2caea6552094ffeb2ddd9307806059c5e4
                                          • MD5 SHA1 SHA512 SSDEEP TLSH

                                          OperationConfig~RFe59f1a9.TMP

                                          • Path C:\Users\Admin\AppData\Local\Microsoft\Edge\User Data\Edge Cloud Config\OperationConfig~RFe59f1a9.TMP
                                          • Size 3KB
                                          • SHA256 8b2e057387e9714efef3580a36459acf56aab53c806cd7d7dbb6e17cef977ef9
                                          • MD5 SHA1 SHA512 TLSH

                                          Local State

                                          • Path C:\Users\Admin\AppData\Local\Microsoft\Edge\User Data\Local State
                                          • Size 33KB
                                          • SHA256 24a62d43970f5aed9a9297efa46f0d7bb78b99763c1fe5f97abc6967c1b11e16
                                          • MD5 SHA1 SHA512 SSDEEP TLSH

                                          Local State

                                          • Path C:\Users\Admin\AppData\Local\Microsoft\Edge\User Data\Local State
                                          • Size 33KB
                                          • SHA256 359753a1e223ff7128f27b67e86ea3eb833b0b025652e891659ecd74b2809fba
                                          • MD5 SHA1 SHA512 SSDEEP TLSH

                                          Local State

                                          • Path C:\Users\Admin\AppData\Local\Microsoft\Edge\User Data\Local State
                                          • Size 36KB
                                          • SHA256 25a7ae0b79e1c6163220744e40c5c024218dbd2ab87f10b220a29e833202235c
                                          • MD5 SHA1 SHA512 SSDEEP TLSH

                                          Local State

                                          • Path C:\Users\Admin\AppData\Local\Microsoft\Edge\User Data\Local State
                                          • Size 37KB
                                          • SHA256 64b10a42cb61082321facdd8005ec4a4ca656d08e03fd66eec6b6a220d37d82d
                                          • MD5 SHA1 SHA512 SSDEEP TLSH

                                          30d64d99-fb99-4b53-8341-c2c3512b58f5.tmp

                                          • Path C:\Users\Admin\AppData\Local\Microsoft\Edge\User Data\extensions_crx_cache\30d64d99-fb99-4b53-8341-c2c3512b58f5.tmp
                                          • Size 13B
                                          • SHA256 2771d13c637c267132afff9db67537bef95708534b79ae8d954254c4e64e4e0f
                                          • MD5 SHA1 SHA512