Analysis

  • user interaction
    yes
  • max time kernel
    149s
  • max time network
    143s
  • platform
    windows10-ltsc_2021_x64
  • resource
    win10ltsc2021-20260513-en
  • resource tags

    arch:x64arch:x86image:win10ltsc2021-20260513-enlocale:en-usos:windows10-ltsc_2021-x64systemwindows
  • submitted
    17/08/2026, 10:31

General

  • Target
    https://pub-38e73bbf7b6243e0ad1512a1071c878c.r2.dev/BIT%20540039%20%281%29.pdf
  • Sample260817-mkrnjaywb1
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.

  • 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
  • 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 32 IoCs
  • Suspicious use of WriteProcessMemory 32 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--start-maximized --disable-default-apps --disable-component-update --simulate-outdated-no-au='Tue, 31 Dec 2099 23:59:59 GMT' --single-argument https://pub-38e73bbf7b6243e0ad1512a1071c878c.r2.dev/BIT%20540039%20%281%29.pdf
    1⤵
    • Checks processor information in registry
    • 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:4704
    • 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,0x288,0x7ffbe6a7c188,0x7ffbe6a7c194,0x7ffbe6a7c1a0
      2⤵
        PID:4548
      • 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,15079616116806873439,5112258699757136511,524288 --field-trial-handle=2212,i,6035343303133583404,2739287807386115118,262144 --variations-seed-version --mojo-platform-channel-handle=2240 /prefetch:3
        2⤵
        • System Time Discovery
        PID:5004
      • 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=1684,i,8863548747505405081,11635291998516865168,262144 --field-trial-handle=2212,i,6035343303133583404,2739287807386115118,262144 --variations-seed-version --mojo-platform-channel-handle=2208 /prefetch:2
        2⤵
          PID:4868
        • 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=2660,i,13208177583712166443,1553405342725427832,524288 --field-trial-handle=2212,i,6035343303133583404,2739287807386115118,262144 --variations-seed-version --mojo-platform-channel-handle=2644 /prefetch:8
          2⤵
            PID:4988
          • 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=3488,i,13731967351504158740,7032817365269454424,2097152 --field-trial-handle=2212,i,6035343303133583404,2739287807386115118,262144 --variations-seed-version --mojo-platform-channel-handle=3500 /prefetch:1
            2⤵
              PID:4004
            • 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=3464,i,17709540255955043789,7202562649039294875,2097152 --field-trial-handle=2212,i,6035343303133583404,2739287807386115118,262144 --variations-seed-version --mojo-platform-channel-handle=3484 /prefetch:1
              2⤵
                PID:4000
              • 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 --init-isolate-as-foreground --pdf-shared-library --pdf-upsell-enabled --force-high-res-timeticks=disabled --disable-gpu-compositing --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=5032,i,12784446316826538034,2955121676818650107,2097152 --field-trial-handle=2212,i,6035343303133583404,2739287807386115118,262144 --variations-seed-version --mojo-platform-channel-handle=5048 /prefetch:2
                2⤵
                  PID:4132
                • C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
                  "C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --type=renderer --renderer-sub-type=pdf-renderer --pdf-renderer --pdf-shared-library --pdf-upsell-enabled --force-high-res-timeticks=disabled --disable-gpu-compositing --video-capture-use-gpu-memory-buffer --lang=en-US --js-flags="--ms-user-locale= --jitless" --device-scale-factor=1 --num-raster-threads=4 --enable-main-frame-before-activation --renderer-client-id=8 --always-read-main-dll --metrics-shmem-handle=5240,i,13807248371766701564,10429457756076003202,2097152 --field-trial-handle=2212,i,6035343303133583404,2739287807386115118,262144 --variations-seed-version --mojo-platform-channel-handle=5228 /prefetch:8
                  2⤵
                    PID:3604
                  • 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=5432,i,15297605043205666929,5347066817890371529,524288 --field-trial-handle=2212,i,6035343303133583404,2739287807386115118,262144 --variations-seed-version --mojo-platform-channel-handle=5408 /prefetch:8
                    2⤵
                      PID:4288
                    • 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=5436,i,12431695328764017638,1934190976741808520,524288 --field-trial-handle=2212,i,6035343303133583404,2739287807386115118,262144 --variations-seed-version --mojo-platform-channel-handle=5448 /prefetch:8
                      2⤵
                        PID:5988
                      • 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=5936,i,17134613863801403164,5304739623496861445,524288 --field-trial-handle=2212,i,6035343303133583404,2739287807386115118,262144 --variations-seed-version --mojo-platform-channel-handle=5792 /prefetch:8
                        2⤵
                          PID:2508
                        • 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=5936,i,17134613863801403164,5304739623496861445,524288 --field-trial-handle=2212,i,6035343303133583404,2739287807386115118,262144 --variations-seed-version --mojo-platform-channel-handle=5792 /prefetch:8
                          2⤵
                            PID:3412
                          • 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=600,i,3792805391974481190,1829482600882558601,524288 --field-trial-handle=2212,i,6035343303133583404,2739287807386115118,262144 --variations-seed-version --mojo-platform-channel-handle=6036 /prefetch:8
                            2⤵
                              PID:5344
                            • 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=6060,i,9585192466814728323,17567466551930464686,524288 --field-trial-handle=2212,i,6035343303133583404,2739287807386115118,262144 --variations-seed-version --mojo-platform-channel-handle=6452 /prefetch:8
                              2⤵
                                PID:1924
                              • 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=6032,i,9275200911719024597,1653466671790138318,524288 --field-trial-handle=2212,i,6035343303133583404,2739287807386115118,262144 --variations-seed-version --mojo-platform-channel-handle=6444 /prefetch:8
                                2⤵
                                  PID:1800
                                • 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=5768,i,10959222335460197281,9328873445641903265,524288 --field-trial-handle=2212,i,6035343303133583404,2739287807386115118,262144 --variations-seed-version --mojo-platform-channel-handle=5684 /prefetch:8
                                  2⤵
                                    PID:1116
                                  • 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=5732,i,13910284904049907091,17867710867906325468,524288 --field-trial-handle=2212,i,6035343303133583404,2739287807386115118,262144 --variations-seed-version --mojo-platform-channel-handle=6160 /prefetch:8
                                    2⤵
                                      PID:1680
                                    • 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=10.0.19041.4355 --force-high-res-timeticks=disabled --gpu-preferences=SAAAAAAAAADoAAAIAAAAAAAAAAAAAGAAAQAAAAAAAACEAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAQAAAAAAAAABAAAAAAAAAACAAAAAAAAAAIAAAAAAAAAA== --always-read-main-dll --metrics-shmem-handle=6300,i,5228899490343120003,16784607106921695515,262144 --field-trial-handle=2212,i,6035343303133583404,2739287807386115118,262144 --variations-seed-version --mojo-platform-channel-handle=5720 /prefetch:8
                                      2⤵
                                      • Suspicious behavior: EnumeratesProcesses
                                      PID:384
                                  • 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:1492
                                    • 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:5320

                                      Network

                                            MITRE ATT&CK Enterprise v16

                                            Replay Monitor

                                            Loading Replay Monitor...

                                            Downloads

                                            64fed8f0-21b9-403e-ac6c-973370cf6506.tmp

                                            • Path C:\Users\Admin\AppData\Local\Microsoft\Edge\User Data\64fed8f0-21b9-403e-ac6c-973370cf6506.tmp
                                            • Size 33KB
                                            • SHA256 4532dae57f5074e25e30d377cc41ab4078222db8675484d5205793a77f19cd2a
                                            • MD5 SHA1 SHA512 SSDEEP TLSH

                                            94ba4a82-b519-4381-90bf-2979d778605a.tmp

                                            • Path C:\Users\Admin\AppData\Local\Microsoft\Edge\User Data\94ba4a82-b519-4381-90bf-2979d778605a.tmp
                                            • Size 28KB
                                            • SHA256 0525eb179e2d0665a2ad69d2df5ebefd75d38b3d63e63adc666a0f31c3313697
                                            • MD5 SHA1 SHA512 SSDEEP TLSH

                                            settings.dat

                                            • Path C:\Users\Admin\AppData\Local\Microsoft\Edge\User Data\Crashpad\settings.dat
                                            • Size 280B
                                            • SHA256 fc69248227d1b80ff41106426895bcd599abcddfbfe7fdbeabc0fcc2aca903ae
                                            • MD5 SHA1 SHA512 TLSH

                                            BookmarkMergedSurfaceOrdering

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

                                            BrowsingTopicsState

                                            • Path C:\Users\Admin\AppData\Local\Microsoft\Edge\User Data\Default\BrowsingTopicsState
                                            • Size 414B
                                            • SHA256 60ee695b0fae2582443c0ea4e7e116efd02ef68574e25cb358dd7cf1cf524496
                                            • MD5 SHA1 SHA512 TLSH

                                            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 e42e04bfeb373d0c7651ba7530cab11bfddd3700c97f7359922c4a9da6188f81
                                            • 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

                                            Network Persistent State

                                            • Path C:\Users\Admin\AppData\Local\Microsoft\Edge\User Data\Default\Network\Network Persistent State
                                            • Size 1KB
                                            • SHA256 f6c8c8618306536edc22bfc3fcbbc5b2b7311e304088aaf276a8844c0143c54f
                                            • 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 15KB
                                            • SHA256 1c55963159533e903fd6f9ba4f82f06c3eb600dece7c7a465e1bcbcfee42c5f8
                                            • MD5 SHA1 SHA512 SSDEEP TLSH

                                            Preferences

                                            • Path C:\Users\Admin\AppData\Local\Microsoft\Edge\User Data\Default\Preferences
                                            • Size 15KB
                                            • SHA256 06b6a17321367ebb27d563907e44b29fbf3f0beba1e0136d41a824cf7f83c158
                                            • MD5 SHA1 SHA512 SSDEEP TLSH

                                            Secure Preferences

                                            • Path C:\Users\Admin\AppData\Local\Microsoft\Edge\User Data\Default\Secure Preferences
                                            • Size 30KB
                                            • SHA256 4a5db2156eb4fef5daa5096bff3f90657bd3e3f7e4afca552041515b3bb00ef9
                                            • 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 23KB
                                            • SHA256 f039bdf0476ba41799bbd588339ef55143241a1490c8c8b88a3447282ab91bd0
                                            • 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

                                            Local State

                                            • Path C:\Users\Admin\AppData\Local\Microsoft\Edge\User Data\Local State
                                            • Size 25KB
                                            • SHA256 73848044f6fdc801ba19e1f394ea2114ba9054e87b9d41049e24a68007f68d9e
                                            • MD5 SHA1 SHA512 SSDEEP TLSH

                                            Local State

                                            • Path C:\Users\Admin\AppData\Local\Microsoft\Edge\User Data\Local State
                                            • Size 28KB
                                            • SHA256 c6a2d8bb1594f792052b0df19d31db0cd11c5241f480bf6cd6af19a108194659
                                            • MD5 SHA1 SHA512 SSDEEP TLSH

                                            Local State

                                            • Path C:\Users\Admin\AppData\Local\Microsoft\Edge\User Data\Local State
                                            • Size 24KB
                                            • SHA256 ddb2ca48e45cba999d969690227eefc2b0e84644c817a6b692fd6e23d5e61918
                                            • MD5 SHA1 SHA512 SSDEEP TLSH

                                            5a2a7058cf8d1e56c20e6b19a7c48eb2386d141b.tbres

                                            • Path C:\Users\Admin\AppData\Local\Microsoft\TokenBroker\Cache\5a2a7058cf8d1e56c20e6b19a7c48eb2386d141b.tbres
                                            • Size 2KB
                                            • SHA256 a9c80433225b4b5794f2161d086a27f2ce189d9a69798ba2f49f5fbb8dcf2594
                                            • MD5 SHA1 SHA512 TLSH

                                            memory/3412-217-0x000001A4634E0000-0x000001A4644E0000-memory.dmp