Analysis

  • user interaction
    yes
  • max time kernel
    149s
  • max time network
    151s
  • platform
    windows10-ltsc_2021_x64
  • resource
    win10ltsc2021-20260126-en
  • resource tags

    arch:x64arch:x86image:win10ltsc2021-20260126-enlocale:en-usos:windows10-ltsc_2021-x64system
  • submitted
    27/04/2026, 16:20

General

  • Target
    krypton-0.2.10.jar
  • Size 263KB
  • Sample260427-ttcdjaas4p
  • SHA256 94291d5690a0ced7fe7da7f380fdbdcbe03cdac8ad4227a037866ba7455eff8b
  • MD5 SHA1 SHA512 SSDEEP TLSH
Score
4/10

Malware Config

Signatures

  • Drops file in Windows directory 6 IoCs
  • Browser Information Discovery 1 TTPs

    Enumerate browser information.

  • System Location Discovery: System Language Discovery 1 TTPs 1 IoCs

    Attempt gather information about the system language of a victim in order to infer the geographical location of that host.

  • 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
  • Suspicious behavior: EnumeratesProcesses 2 IoCs
  • Suspicious behavior: NtCreateUserProcessBlockNonMicrosoftBinary 4 IoCs
  • Suspicious use of AdjustPrivilegeToken 64 IoCs
  • Suspicious use of FindShellTrayWindow 34 IoCs
  • Suspicious use of SendNotifyMessage 32 IoCs
  • Suspicious use of WriteProcessMemory 18 IoCs

Processes

  • C:\Program Files (x86)\Common Files\Oracle\Java\javapath\java.exe
    java -jar C:\Users\Admin\AppData\Local\Temp\krypton-0.2.10.jar
    1⤵
      PID:4332
    • C:\Program Files\Google\Chrome\Application\chrome.exe
      "C:\Program Files\Google\Chrome\Application\chrome.exe"
      1⤵
      • Drops file in Windows directory
      • Checks processor information in registry
      • Enumerates system info in registry
      • Modifies data under HKEY_USERS
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious behavior: NtCreateUserProcessBlockNonMicrosoftBinary
      • Suspicious use of AdjustPrivilegeToken
      • Suspicious use of FindShellTrayWindow
      • Suspicious use of SendNotifyMessage
      • Suspicious use of WriteProcessMemory
      PID:4004
      • C:\Program Files\Google\Chrome\Application\chrome.exe
        "C:\Program Files\Google\Chrome\Application\chrome.exe" --type=crashpad-handler "--user-data-dir=C:\Users\Admin\AppData\Local\Google\Chrome\User Data" /prefetch:4 --monitor-self-annotation=ptype=crashpad-handler "--database=C:\Users\Admin\AppData\Local\Google\Chrome\User Data\Crashpad" "--metrics-dir=C:\Users\Admin\AppData\Local\Google\Chrome\User Data" --url=https://clients2.google.com/cr/report --annotation=channel= --annotation=plat=Win64 --annotation=prod=Chrome --annotation=ver=140.0.7339.81 --initial-client-data=0x220,0x224,0x228,0x1fc,0x22c,0x7ffd1e0ec728,0x7ffd1e0ec734,0x7ffd1e0ec740
        2⤵
          PID:5208
        • C:\Program Files\Google\Chrome\Application\chrome.exe
          "C:\Program Files\Google\Chrome\Application\chrome.exe" --type=gpu-process --no-pre-read-main-dll --force-high-res-timeticks=disabled --gpu-preferences=SAAAAAAAAADgAAAIAAAAAAAAAAAAAGAAAQAAAAAAAAAEAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAQAAAAAAAAABAAAAAAAAAACAAAAAAAAAAIAAAAAAAAAA== --metrics-shmem-handle=1764,i,892296267426958165,9725855919910503085,262144 --field-trial-handle=2156,i,18182522468274319916,12236583670272444645,262144 --variations-seed-version=20260126-010020.760000 --mojo-platform-channel-handle=2080 /prefetch:2
          2⤵
            PID:5312
          • C:\Program Files\Google\Chrome\Application\chrome.exe
            "C:\Program Files\Google\Chrome\Application\chrome.exe" --type=utility --utility-sub-type=network.mojom.NetworkService --lang=en-US --service-sandbox-type=none --force-high-res-timeticks=disabled --metrics-shmem-handle=2260,i,12140736786315917112,371214488603281691,524288 --field-trial-handle=2156,i,18182522468274319916,12236583670272444645,262144 --variations-seed-version=20260126-010020.760000 --mojo-platform-channel-handle=2256 /prefetch:3
            2⤵
            • System Time Discovery
            PID:2004
          • C:\Program Files\Google\Chrome\Application\chrome.exe
            "C:\Program Files\Google\Chrome\Application\chrome.exe" --type=utility --utility-sub-type=storage.mojom.StorageService --lang=en-US --service-sandbox-type=service --force-high-res-timeticks=disabled --metrics-shmem-handle=2392,i,10735116740240656426,4371887560679289633,524288 --field-trial-handle=2156,i,18182522468274319916,12236583670272444645,262144 --variations-seed-version=20260126-010020.760000 --mojo-platform-channel-handle=2572 /prefetch:8
            2⤵
              PID:4076
            • C:\Program Files\Google\Chrome\Application\chrome.exe
              "C:\Program Files\Google\Chrome\Application\chrome.exe" --type=renderer --enable-dinosaur-easter-egg-alt-images --force-high-res-timeticks=disabled --video-capture-use-gpu-memory-buffer --lang=en-US --device-scale-factor=1 --num-raster-threads=4 --enable-main-frame-before-activation --renderer-client-id=6 --metrics-shmem-handle=3252,i,11432261970030895577,4335609206010444933,2097152 --field-trial-handle=2156,i,18182522468274319916,12236583670272444645,262144 --variations-seed-version=20260126-010020.760000 --mojo-platform-channel-handle=3264 /prefetch:1
              2⤵
                PID:216
              • C:\Program Files\Google\Chrome\Application\chrome.exe
                "C:\Program Files\Google\Chrome\Application\chrome.exe" --type=renderer --enable-dinosaur-easter-egg-alt-images --force-high-res-timeticks=disabled --video-capture-use-gpu-memory-buffer --lang=en-US --device-scale-factor=1 --num-raster-threads=4 --enable-main-frame-before-activation --renderer-client-id=5 --metrics-shmem-handle=3280,i,11030751230047143454,10133444513322360306,2097152 --field-trial-handle=2156,i,18182522468274319916,12236583670272444645,262144 --variations-seed-version=20260126-010020.760000 --mojo-platform-channel-handle=3284 /prefetch:1
                2⤵
                  PID:3388
                • C:\Program Files\Google\Chrome\Application\chrome.exe
                  "C:\Program Files\Google\Chrome\Application\chrome.exe" --type=renderer --extension-process --enable-dinosaur-easter-egg-alt-images --force-high-res-timeticks=disabled --disable-gpu-compositing --video-capture-use-gpu-memory-buffer --lang=en-US --device-scale-factor=1 --num-raster-threads=4 --enable-main-frame-before-activation --renderer-client-id=7 --metrics-shmem-handle=4444,i,6239970764307776804,9421214624570590680,2097152 --field-trial-handle=2156,i,18182522468274319916,12236583670272444645,262144 --variations-seed-version=20260126-010020.760000 --mojo-platform-channel-handle=4468 /prefetch:2
                  2⤵
                    PID:5092
                  • C:\Program Files\Google\Chrome\Application\chrome.exe
                    "C:\Program Files\Google\Chrome\Application\chrome.exe" --type=renderer --enable-dinosaur-easter-egg-alt-images --force-high-res-timeticks=disabled --disable-gpu-compositing --video-capture-use-gpu-memory-buffer --lang=en-US --device-scale-factor=1 --num-raster-threads=4 --enable-main-frame-before-activation --renderer-client-id=8 --metrics-shmem-handle=4760,i,10667662526782308496,10604576683068752476,2097152 --field-trial-handle=2156,i,18182522468274319916,12236583670272444645,262144 --variations-seed-version=20260126-010020.760000 --mojo-platform-channel-handle=4700 /prefetch:1
                    2⤵
                      PID:4184
                    • C:\Program Files\Google\Chrome\Application\chrome.exe
                      "C:\Program Files\Google\Chrome\Application\chrome.exe" --type=utility --utility-sub-type=chrome.mojom.ProcessorMetrics --lang=en-US --service-sandbox-type=none --force-high-res-timeticks=disabled --metrics-shmem-handle=5440,i,10852653388509038340,6433300207969124949,524288 --field-trial-handle=2156,i,18182522468274319916,12236583670272444645,262144 --variations-seed-version=20260126-010020.760000 --mojo-platform-channel-handle=5436 /prefetch:8
                      2⤵
                        PID:5464
                      • C:\Program Files\Google\Chrome\Application\chrome.exe
                        "C:\Program Files\Google\Chrome\Application\chrome.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 --metrics-shmem-handle=5812,i,8250493401909727013,14093968058420161949,524288 --field-trial-handle=2156,i,18182522468274319916,12236583670272444645,262144 --variations-seed-version=20260126-010020.760000 --mojo-platform-channel-handle=5824 /prefetch:8
                        2⤵
                          PID:248
                        • C:\Program Files\Google\Chrome\Application\chrome.exe
                          "C:\Program Files\Google\Chrome\Application\chrome.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 --metrics-shmem-handle=5816,i,10276911897565886048,300527444357405090,524288 --field-trial-handle=2156,i,18182522468274319916,12236583670272444645,262144 --variations-seed-version=20260126-010020.760000 --mojo-platform-channel-handle=5876 /prefetch:8
                          2⤵
                            PID:1872
                          • C:\Program Files\Google\Chrome\Application\chrome.exe
                            "C:\Program Files\Google\Chrome\Application\chrome.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 --metrics-shmem-handle=5696,i,11763421863722995446,17402672646936105136,524288 --field-trial-handle=2156,i,18182522468274319916,12236583670272444645,262144 --variations-seed-version=20260126-010020.760000 --mojo-platform-channel-handle=5900 /prefetch:8
                            2⤵
                              PID:3384
                          • C:\Program Files\Google\Chrome\Application\140.0.7339.81\elevation_service.exe
                            "C:\Program Files\Google\Chrome\Application\140.0.7339.81\elevation_service.exe"
                            1⤵
                              PID:5608
                            • C:\Windows\system32\svchost.exe
                              C:\Windows\system32\svchost.exe -k LocalSystemNetworkRestricted -p -s NgcSvc
                              1⤵
                                PID:728
                              • C:\Windows\System32\oobe\UserOOBEBroker.exe
                                C:\Windows\System32\oobe\UserOOBEBroker.exe -Embedding
                                1⤵
                                • Drops file in Windows directory
                                PID:4072
                              • C:\Users\Admin\AppData\Local\Microsoft\OneDrive\18.151.0729.0013\FileCoAuth.exe
                                C:\Users\Admin\AppData\Local\Microsoft\OneDrive\18.151.0729.0013\FileCoAuth.exe -Embedding
                                1⤵
                                • System Location Discovery: System Language Discovery
                                PID:4100
                              • C:\Windows\system32\svchost.exe
                                C:\Windows\system32\svchost.exe -k LocalSystemNetworkRestricted -p -s DisplayEnhancementService
                                1⤵
                                  PID:4332
                                • C:\Windows\system32\AUDIODG.EXE
                                  C:\Windows\system32\AUDIODG.EXE 0x518 0x514
                                  1⤵
                                  • Suspicious use of AdjustPrivilegeToken
                                  PID:4756
                                • C:\Windows\system32\SystemSettingsAdminFlows.exe
                                  "C:\Windows\system32\SystemSettingsAdminFlows.exe" OptionalFeaturesAdminHelper
                                  1⤵
                                    PID:744
                                  • C:\Windows\winsxs\amd64_microsoft-windows-servicingstack_31bf3856ad364e35_10.0.19041.4467_none_7e0f83e07c8c1985\TiWorker.exe
                                    C:\Windows\winsxs\amd64_microsoft-windows-servicingstack_31bf3856ad364e35_10.0.19041.4467_none_7e0f83e07c8c1985\TiWorker.exe -Embedding
                                    1⤵
                                    • Drops file in Windows directory
                                    PID:3668

                                  Network

                                        MITRE ATT&CK Enterprise v16

                                        Replay Monitor

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                                        Downloads

                                        BookmarkMergedSurfaceOrdering

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

                                        BrowsingTopicsState

                                        • Path C:\Users\Admin\AppData\Local\Google\Chrome\User Data\Default\BrowsingTopicsState
                                        • Size 414B
                                        • SHA256 c19375dc599e6e6b3804905f005295fa9cac45c92fb0f6c19d13b9f1079374b9
                                        • MD5 SHA1 SHA512 TLSH

                                        SCT Auditing Pending Reports

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

                                        Preferences

                                        • Path C:\Users\Admin\AppData\Local\Google\Chrome\User Data\Default\Preferences
                                        • Size 12KB
                                        • SHA256 7362284995d0ffe28a0abb507be72b5e3c197c0694f39060921e54944c742465
                                        • MD5 SHA1 SHA512 SSDEEP TLSH

                                        Secure Preferences

                                        • Path C:\Users\Admin\AppData\Local\Google\Chrome\User Data\Default\Secure Preferences
                                        • Size 17KB
                                        • SHA256 0e11e2cbfed0fe61def4d5dcd2ba1920c396e023faf026c274d308e1575e2bf5
                                        • MD5 SHA1 SHA512 SSDEEP TLSH

                                        the-real-index

                                        • Path C:\Users\Admin\AppData\Local\Google\Chrome\User Data\Default\Service Worker\ScriptCache\index-dir\the-real-index
                                        • Size 120B
                                        • SHA256 3c5bc0699011bad846c652581eaeaa0d7174a1c68ee5c95ebd84870f183ca63d
                                        • MD5 SHA1 SHA512 TLSH

                                        the-real-index~RFe59a762.TMP

                                        • Path C:\Users\Admin\AppData\Local\Google\Chrome\User Data\Default\Service Worker\ScriptCache\index-dir\the-real-index~RFe59a762.TMP
                                        • Size 96B
                                        • SHA256 c060e293436220a03c6cf50f1772e2456e8ba89125f66002874f2884347e5c80
                                        • MD5 SHA1 SHA512 TLSH

                                        Local State

                                        • Path C:\Users\Admin\AppData\Local\Google\Chrome\User Data\Local State
                                        • Size 85KB
                                        • SHA256 414b13f24c47ed04729cf579adf14bad1aaea73d788735c985997c52316a3afb
                                        • MD5 SHA1 SHA512 SSDEEP TLSH

                                        Local State

                                        • Path C:\Users\Admin\AppData\Local\Google\Chrome\User Data\Local State
                                        • Size 192KB
                                        • SHA256 3ba644a046d00196e1a1f1ee99563bda62b08631315a489d0bcbb103dc73b634
                                        • MD5 SHA1 SHA512 SSDEEP TLSH

                                        Local State

                                        • Path C:\Users\Admin\AppData\Local\Google\Chrome\User Data\Local State
                                        • Size 192KB
                                        • SHA256 a76a8c3389d948453edc322c0bee13b975e233145b70b8530c3e8cfb83a8363b
                                        • MD5 SHA1 SHA512 SSDEEP TLSH

                                        memory/4100-78-0x0000000001990000-0x0000000001997000-memory.dmp

                                        memory/4100-77-0x0000000001770000-0x00000000017ED000-memory.dmp

                                        memory/4332-2-0x000001B1DF560000-0x000001B1DF7D0000-memory.dmp

                                        memory/4332-12-0x000001B1DF560000-0x000001B1DF7D0000-memory.dmp

                                        memory/4332-11-0x000001B1DDCD0000-0x000001B1DDCD1000-memory.dmp