Analysis

  • max time kernel
    148s
  • max time network
    125s
  • platform
    windows11-ltsc_2024_x64
  • resource
    win11ltsc2024-20260911-en
  • resource tags

    arch:x64arch:x86image:win11ltsc2024-20260911-enlocale:en-usos:windows11-ltsc_2024-x64systemwindows
  • submitted
    30/09/2026, 19:02

General

  • Target
    attachment20260930-527357-wa4oju.htm
  • Size 194B
  • Sample260930-xpvwvswvdx
  • SHA256 5dfa57bf10f02106e404ffb38bc5b2da62eb96b9b02b74d10f1b472a89e6ee5b
  • 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 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--start-maximized --disable-default-apps --disable-component-update --simulate-outdated-no-au='Tue, 31 Dec 2099 23:59:59 GMT' --single-argument C:\Users\Admin\AppData\Local\Temp\attachment20260930-527357-wa4oju.htm
    1⤵
    • Enumerates system info in registry
    • Modifies registry class
    • Suspicious behavior: NtCreateUserProcessBlockNonMicrosoftBinary
    • Suspicious use of FindShellTrayWindow
    • Suspicious use of SendNotifyMessage
    • Suspicious use of WriteProcessMemory
    PID:3720
    • 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,0x2b8,0x7ff83a32c188,0x7ff83a32c194,0x7ff83a32c1a0
      2⤵
        PID:4860
      • 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=1548,i,1469811722892660844,11889615868861474819,262144 --field-trial-handle=2612,i,3798870212643893383,13358036566695994318,262144 --variations-seed-version --mojo-platform-channel-handle=2532 /prefetch:2
        2⤵
          PID:4496
        • 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=1828,i,14672057466278793112,17216221535923196996,524288 --field-trial-handle=2612,i,3798870212643893383,13358036566695994318,262144 --variations-seed-version --mojo-platform-channel-handle=3228 /prefetch:11
          2⤵
          • System Time Discovery
          PID:3372
        • 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 --force-high-res-timeticks=disabled --always-read-main-dll --metrics-shmem-handle=2328,i,781017577900233062,6208290044082138329,524288 --field-trial-handle=2612,i,3798870212643893383,13358036566695994318,262144 --variations-seed-version --mojo-platform-channel-handle=3320 /prefetch:13
          2⤵
            PID:4824
          • 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=3572,i,13273400014503799101,3848418352701890069,2097152 --field-trial-handle=2612,i,3798870212643893383,13358036566695994318,262144 --variations-seed-version --mojo-platform-channel-handle=3616 /prefetch:1
            2⤵
              PID:4176
            • 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=3580,i,6730849418917829089,9067004163097516707,2097152 --field-trial-handle=2612,i,3798870212643893383,13358036566695994318,262144 --variations-seed-version --mojo-platform-channel-handle=3628 /prefetch:1
              2⤵
                PID:4388
              • 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=4240,i,10457221390948922844,16525750936922864890,2097152 --field-trial-handle=2612,i,3798870212643893383,13358036566695994318,262144 --variations-seed-version --mojo-platform-channel-handle=4776 /prefetch:1
                2⤵
                  PID:5572
                • 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=4252,i,6183399965399988518,12353007153450293281,2097152 --field-trial-handle=2612,i,3798870212643893383,13358036566695994318,262144 --variations-seed-version --mojo-platform-channel-handle=4824 /prefetch:9
                  2⤵
                    PID:5088
                  • 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=5332,i,4984244242081376491,6793784592205627415,524288 --field-trial-handle=2612,i,3798870212643893383,13358036566695994318,262144 --variations-seed-version --mojo-platform-channel-handle=5388 /prefetch:14
                    2⤵
                      PID:2676
                    • 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=5336,i,5821704605104455405,7165360663579824488,524288 --field-trial-handle=2612,i,3798870212643893383,13358036566695994318,262144 --variations-seed-version --mojo-platform-channel-handle=5408 /prefetch:14
                      2⤵
                        PID:5800
                      • 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=5960,i,13209230682823747862,14703622695133457457,524288 --field-trial-handle=2612,i,3798870212643893383,13358036566695994318,262144 --variations-seed-version --mojo-platform-channel-handle=5984 /prefetch:14
                        2⤵
                          PID:1620
                        • 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=5960,i,13209230682823747862,14703622695133457457,524288 --field-trial-handle=2612,i,3798870212643893383,13358036566695994318,262144 --variations-seed-version --mojo-platform-channel-handle=5984 /prefetch:14
                          2⤵
                            PID:4324
                          • 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=4796,i,18089507221781554922,8624698714440120266,524288 --field-trial-handle=2612,i,3798870212643893383,13358036566695994318,262144 --variations-seed-version --mojo-platform-channel-handle=5068 /prefetch:14
                            2⤵
                              PID:4904
                            • 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=4856,i,15115881956274062422,5886703873475704023,524288 --field-trial-handle=2612,i,3798870212643893383,13358036566695994318,262144 --variations-seed-version --mojo-platform-channel-handle=5020 /prefetch:14
                              2⤵
                                PID:1856
                              • 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=4836,i,8319586528447312041,9378262539926428407,524288 --field-trial-handle=2612,i,3798870212643893383,13358036566695994318,262144 --variations-seed-version --mojo-platform-channel-handle=5260 /prefetch:14
                                2⤵
                                  PID:1628
                                • 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=6636,i,9235499155114746243,8715031832698023025,524288 --field-trial-handle=2612,i,3798870212643893383,13358036566695994318,262144 --variations-seed-version --mojo-platform-channel-handle=6588 /prefetch:14
                                  2⤵
                                    PID:2376
                                  • 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=6412,i,14731167777729780219,7002767680688484037,262144 --field-trial-handle=2612,i,3798870212643893383,13358036566695994318,262144 --variations-seed-version --mojo-platform-channel-handle=6420 /prefetch:10
                                    2⤵
                                    • Suspicious behavior: EnumeratesProcesses
                                    PID:5436
                                • 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:2588
                                  • 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:4232

                                    Network

                                          MITRE ATT&CK Enterprise v16

                                          Replay Monitor

                                          Loading Replay Monitor...

                                          Downloads

                                          settings.dat

                                          • Path C:\Users\Admin\AppData\Local\Microsoft\Edge\User Data\Crashpad\settings.dat
                                          • Size 280B
                                          • SHA256 648887a89dac8888df245d8758dcd78e85ae79931c9464f19b0967fcd69c3d2f
                                          • MD5 SHA1 SHA512 TLSH

                                          settings.dat

                                          • Path C:\Users\Admin\AppData\Local\Microsoft\Edge\User Data\Crashpad\settings.dat
                                          • Size 280B
                                          • SHA256 68f353a62995fc87917d7d1eef768abe00ffab02e1d3e469100f99b6987f6488
                                          • 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 598b6f1df6a56554384799444bef1336ffb2cd2f9ab9329296ae6ed3d801ad95
                                          • MD5 SHA1 SHA512 TLSH

                                          the-real-index~RFe5939e2.TMP

                                          • Path C:\Users\Admin\AppData\Local\Microsoft\Edge\User Data\Default\Code Cache\js\index-dir\the-real-index~RFe5939e2.TMP
                                          • Size 3KB
                                          • SHA256 3e130f04c6118f61e11a45cd04ec3169db66a65fae112a7ccc7ea8314a2f4c25
                                          • 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

                                          01818052-bc42-48eb-8ed1-5aa97d63179c.tmp

                                          • Path C:\Users\Admin\AppData\Local\Microsoft\Edge\User Data\Default\Network\01818052-bc42-48eb-8ed1-5aa97d63179c.tmp
                                          • Size 2KB
                                          • SHA256 2b2c73cb05b8f4824b97b9b027222b39158ad904f07634ab0ee1e4095d1a4f27
                                          • 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 10KB
                                          • SHA256 a469b49551bd73ba5557117b564b27b57aa6ef7ae73fa9fcb1eab3ed925f8b33
                                          • MD5 SHA1 SHA512 SSDEEP TLSH

                                          Preferences

                                          • Path C:\Users\Admin\AppData\Local\Microsoft\Edge\User Data\Default\Preferences
                                          • Size 10KB
                                          • SHA256 1fffce2e5ddb5b873e66a9748fabd5761b0a3e58555cd84ab7243d87b3a01b5d
                                          • MD5 SHA1 SHA512 SSDEEP TLSH

                                          Preferences

                                          • Path C:\Users\Admin\AppData\Local\Microsoft\Edge\User Data\Default\Preferences
                                          • Size 10KB
                                          • SHA256 6982655e5c372057122b48012812cbe7c8353c716638ea922ff106de9f8dcbfc
                                          • MD5 SHA1 SHA512 SSDEEP TLSH

                                          Secure Preferences

                                          • Path C:\Users\Admin\AppData\Local\Microsoft\Edge\User Data\Default\Secure Preferences
                                          • Size 23KB
                                          • SHA256 11ce1e1f85968e2192d8488305ebff2bd82fd2c386296080cb7198c4c43af093
                                          • 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 7016072313cba0a8b86592503640f3146bc2828704eaf45b2a47d6a5264e6d36
                                          • 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~RFe59d0f2.TMP

                                          • Path C:\Users\Admin\AppData\Local\Microsoft\Edge\User Data\Edge Cloud Config\OperationConfig~RFe59d0f2.TMP
                                          • Size 3KB
                                          • SHA256 8b2e057387e9714efef3580a36459acf56aab53c806cd7d7dbb6e17cef977ef9
                                          • MD5 SHA1 SHA512 TLSH

                                          Local State

                                          • Path C:\Users\Admin\AppData\Local\Microsoft\Edge\User Data\Local State
                                          • Size 34KB
                                          • SHA256 5625b06f465dab7d6086e1583f43e938b3b59bcabd39af43b5025f2c6c193a5e
                                          • MD5 SHA1 SHA512 SSDEEP TLSH

                                          Local State

                                          • Path C:\Users\Admin\AppData\Local\Microsoft\Edge\User Data\Local State
                                          • Size 40KB
                                          • SHA256 467b59f749d81fa1a96e927c72ae43999e96578871d17e8d7fb75922ab60e5d3
                                          • MD5 SHA1 SHA512 SSDEEP TLSH

                                          Local State

                                          • Path C:\Users\Admin\AppData\Local\Microsoft\Edge\User Data\Local State
                                          • Size 34KB
                                          • SHA256 10670122e48f7984dde6dc737a9d3a8c17b3b832c0b9223c2169938aeba24023
                                          • MD5 SHA1 SHA512 SSDEEP TLSH

                                          Local State

                                          • Path C:\Users\Admin\AppData\Local\Microsoft\Edge\User Data\Local State
                                          • Size 36KB
                                          • SHA256 1ec9eb28436daa04c3128b6a62d3313bc1c2fbd085f88dd2a5e258615adc559b
                                          • MD5 SHA1 SHA512 SSDEEP TLSH

                                          Local State

                                          • Path C:\Users\Admin\AppData\Local\Microsoft\Edge\User Data\Local State
                                          • Size 37KB
                                          • SHA256 6a234737928fe8893c975d0d3e6c19bf61a3291915a10123912aaf9c9a138406
                                          • MD5 SHA1 SHA512 SSDEEP TLSH

                                          be948748-588d-45b9-a105-b28c8b51a18e.tmp

                                          • Path C:\Users\Admin\AppData\Local\Microsoft\Edge\User Data\extensions_crx_cache\be948748-588d-45b9-a105-b28c8b51a18e.tmp
                                          • Size 13B
                                          • SHA256 2771d13c637c267132afff9db67537bef95708534b79ae8d954254c4e64e4e0f
                                          • MD5 SHA1 SHA512