Analysis

  • user interaction
    yes
  • max time kernel
    149s
  • max time network
    152s
  • platform
    windows11-21h2_x64
  • resource
    win11-20260513-en
  • resource tags

    arch:x64arch:x86image:win11-20260513-enlocale:en-usos:windows11-21h2-x64systemwindows
  • submitted
    01/06/2026, 14:28

General

  • Target
    catlean_1.21.11.jar
  • Size 10.6MB
  • Sample260601-rtesjsfx21
  • SHA256 d15e0afafc2ecbbc3883d3a1369542c16dfc3ed395e13e9de233fadaeb003f4c
  • MD5 SHA1 SHA512 SSDEEP TLSH
Score
4/10

Malware Config

Signatures

  • Drops file in Windows directory 5 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.

  • Enumerates system info in registry 2 TTPs 3 IoCs
  • Modifies data under HKEY_USERS 2 IoCs
  • Modifies registry class 1 IoCs
  • Suspicious behavior: EnumeratesProcesses 6 IoCs
  • Suspicious behavior: NtCreateUserProcessBlockNonMicrosoftBinary 6 IoCs
  • Suspicious use of AdjustPrivilegeToken 64 IoCs
  • Suspicious use of FindShellTrayWindow 34 IoCs
  • Suspicious use of SendNotifyMessage 16 IoCs
  • Suspicious use of WriteProcessMemory 23 IoCs

Processes

  • C:\Program Files (x86)\Common Files\Oracle\Java\javapath\java.exe
    java -jar C:\Users\Admin\AppData\Local\Temp\catlean_1.21.11.jar
    1⤵
      PID:1664
    • C:\Program Files\Google\Chrome\Application\chrome.exe
      "C:\Program Files\Google\Chrome\Application\chrome.exe"
      1⤵
      • Drops file in Windows directory
      • Enumerates system info in registry
      • Modifies data under HKEY_USERS
      • Modifies registry class
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious behavior: NtCreateUserProcessBlockNonMicrosoftBinary
      • Suspicious use of AdjustPrivilegeToken
      • Suspicious use of FindShellTrayWindow
      • Suspicious use of SendNotifyMessage
      • Suspicious use of WriteProcessMemory
      PID:5004
      • 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=0xfc,0x100,0x104,0xd8,0x108,0x7ff87435c728,0x7ff87435c734,0x7ff87435c740
        2⤵
          PID:4040
        • 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=1460,i,11554941224721078027,2362291415194494141,524288 --field-trial-handle=2064,i,9135687898339406567,12855367776468102819,262144 --variations-seed-version=20260513-090056.789000-production --mojo-platform-channel-handle=2168 /prefetch:11
          2⤵
          • System Time Discovery
          PID:4972
        • 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=1596,i,15332947344099239254,4695153801646474883,262144 --field-trial-handle=2064,i,9135687898339406567,12855367776468102819,262144 --variations-seed-version=20260513-090056.789000-production --mojo-platform-channel-handle=2060 /prefetch:2
          2⤵
            PID:412
          • 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=2408,i,14969646740426171168,7843518495598613719,524288 --field-trial-handle=2064,i,9135687898339406567,12855367776468102819,262144 --variations-seed-version=20260513-090056.789000-production --mojo-platform-channel-handle=1744 /prefetch:13
            2⤵
              PID:592
            • 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=3220,i,14188045167155560563,1801572802688212385,2097152 --field-trial-handle=2064,i,9135687898339406567,12855367776468102819,262144 --variations-seed-version=20260513-090056.789000-production --mojo-platform-channel-handle=3428 /prefetch:1
              2⤵
                PID:5256
              • 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=3224,i,5094726486994879392,16755868166835989069,2097152 --field-trial-handle=2064,i,9135687898339406567,12855367776468102819,262144 --variations-seed-version=20260513-090056.789000-production --mojo-platform-channel-handle=3492 /prefetch:1
                2⤵
                  PID:5276
                • 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=4400,i,13502080800397508620,17410506619487473925,2097152 --field-trial-handle=2064,i,9135687898339406567,12855367776468102819,262144 --variations-seed-version=20260513-090056.789000-production --mojo-platform-channel-handle=4440 /prefetch:9
                  2⤵
                    PID:5032
                  • 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=4724,i,1646959792502237022,13780554972780232151,2097152 --field-trial-handle=2064,i,9135687898339406567,12855367776468102819,262144 --variations-seed-version=20260513-090056.789000-production --mojo-platform-channel-handle=4732 /prefetch:1
                    2⤵
                      PID:3532
                    • 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=5528,i,3602928744911945985,10842617737600619488,524288 --field-trial-handle=2064,i,9135687898339406567,12855367776468102819,262144 --variations-seed-version=20260513-090056.789000-production --mojo-platform-channel-handle=5524 /prefetch:14
                      2⤵
                        PID:5544
                      • 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=10 --metrics-shmem-handle=5524,i,16883555548350559530,2015328177190436917,2097152 --field-trial-handle=2064,i,9135687898339406567,12855367776468102819,262144 --variations-seed-version=20260513-090056.789000-production --mojo-platform-channel-handle=5844 /prefetch:1
                        2⤵
                          PID:5800
                        • 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=11 --metrics-shmem-handle=3628,i,13322592291310252707,7257110044168892474,2097152 --field-trial-handle=2064,i,9135687898339406567,12855367776468102819,262144 --variations-seed-version=20260513-090056.789000-production --mojo-platform-channel-handle=4128 /prefetch:1
                          2⤵
                            PID:1152
                          • 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=5652,i,18120340795577036967,6896807117408536874,524288 --field-trial-handle=2064,i,9135687898339406567,12855367776468102819,262144 --variations-seed-version=20260513-090056.789000-production --mojo-platform-channel-handle=3528 /prefetch:14
                            2⤵
                              PID:1760
                            • 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=5740,i,3720026597067869099,8723160169119687713,524288 --field-trial-handle=2064,i,9135687898339406567,12855367776468102819,262144 --variations-seed-version=20260513-090056.789000-production --mojo-platform-channel-handle=3580 /prefetch:14
                              2⤵
                                PID:1708
                              • 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=5824,i,7933294231171766837,1630456640842225218,524288 --field-trial-handle=2064,i,9135687898339406567,12855367776468102819,262144 --variations-seed-version=20260513-090056.789000-production --mojo-platform-channel-handle=4620 /prefetch:14
                                2⤵
                                  PID:2584
                                • C:\Program Files\Google\Chrome\Application\chrome.exe
                                  "C:\Program Files\Google\Chrome\Application\chrome.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=10.0.22000.1 --force-high-res-timeticks=disabled --gpu-preferences=SAAAAAAAAADoAAAIAAAAAAAAAAAAAGAAAQAAAAAAAACEAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAQAAAAAAAAABAAAAAAAAAACAAAAAAAAAAIAAAAAAAAAA== --metrics-shmem-handle=3584,i,4931994878609628436,9019832127832010684,262144 --field-trial-handle=2064,i,9135687898339406567,12855367776468102819,262144 --variations-seed-version=20260513-090056.789000-production --mojo-platform-channel-handle=5736 /prefetch:10
                                  2⤵
                                  • Suspicious behavior: EnumeratesProcesses
                                  PID:2856
                              • 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:5128
                                • C:\Windows\system32\svchost.exe
                                  C:\Windows\system32\svchost.exe -k LocalSystemNetworkRestricted -p -s NgcSvc
                                  1⤵
                                    PID:5648
                                  • C:\Windows\system32\svchost.exe
                                    C:\Windows\system32\svchost.exe -k LocalService -p -s NPSMSvc
                                    1⤵
                                      PID:5792
                                    • C:\Windows\System32\oobe\UserOOBEBroker.exe
                                      C:\Windows\System32\oobe\UserOOBEBroker.exe -Embedding
                                      1⤵
                                      • Drops file in Windows directory
                                      PID:2768
                                    • 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:6120

                                    Network

                                          MITRE ATT&CK Enterprise v16

                                          Replay Monitor

                                          Loading Replay Monitor...

                                          Downloads

                                          89120900-3f37-4fd1-a996-074e46db4e72.tmp

                                          • Path C:\Users\Admin\AppData\Local\Google\Chrome\User Data\Default\89120900-3f37-4fd1-a996-074e46db4e72.tmp
                                          • Size 12KB
                                          • SHA256 6e7d240b5cf67453ddf6202e1ea3135276f2efe87e3d1a0010620e861df4c7cd
                                          • MD5 SHA1 SHA512 SSDEEP TLSH

                                          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 649B
                                          • SHA256 99f5fe92ca97dab6dbe3c23541d1ad05575fe4e111b9adfa316fe63c2eedcdf5
                                          • MD5 SHA1 SHA512 TLSH

                                          the-real-index

                                          • Path C:\Users\Admin\AppData\Local\Google\Chrome\User Data\Default\Code Cache\js\index-dir\the-real-index
                                          • Size 696B
                                          • SHA256 5c0b85dfa8bc52e7df1db98f63e1954be342711fe094e42645ebf6f10cea09d1
                                          • MD5 SHA1 SHA512 TLSH

                                          Network Persistent State

                                          • Path C:\Users\Admin\AppData\Local\Google\Chrome\User Data\Default\Network\Network Persistent State
                                          • Size 8KB
                                          • SHA256 a578ca8f56c0de71b517e81c6a61554af05c9c6745ba260b3b17d94a52dc02c7
                                          • MD5 SHA1 SHA512 SSDEEP 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 13KB
                                          • SHA256 d19a2d589d04a574202ad0fff5480b927fa7adaf887edf01aae6a86681489564
                                          • MD5 SHA1 SHA512 SSDEEP TLSH

                                          Secure Preferences

                                          • Path C:\Users\Admin\AppData\Local\Google\Chrome\User Data\Default\Secure Preferences
                                          • Size 17KB
                                          • SHA256 a487a90aa586ffb722bc45a76d1e954f5a6f5ff4286551d2445a524e0f1cc25d
                                          • 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 144B
                                          • SHA256 75ba14420bcc196f627aa0bc71ca05b4ec84253ae717130256a6b05ce6f51099
                                          • MD5 SHA1 SHA512 TLSH

                                          the-real-index~RFe58c08c.TMP

                                          • Path C:\Users\Admin\AppData\Local\Google\Chrome\User Data\Default\Service Worker\ScriptCache\index-dir\the-real-index~RFe58c08c.TMP
                                          • Size 96B
                                          • SHA256 97fc39992c6dc654e31cf96aeb269f375ff217c0d6a4472c1bd06f073e318231
                                          • MD5 SHA1 SHA512 TLSH

                                          Local State

                                          • Path C:\Users\Admin\AppData\Local\Google\Chrome\User Data\Local State
                                          • Size 233KB
                                          • SHA256 0fb0aab7f3a81845dc36db43a61b22c29bfd58e8706b597f22c1a2dac88afe6a
                                          • MD5 SHA1 SHA512 SSDEEP TLSH

                                          Local State

                                          • Path C:\Users\Admin\AppData\Local\Google\Chrome\User Data\Local State
                                          • Size 115KB
                                          • SHA256 098e3c15d6f14330601322e37f9d227e40dd8195e2718704f8181af50d7c4d82
                                          • MD5 SHA1 SHA512 SSDEEP TLSH

                                          Local State

                                          • Path C:\Users\Admin\AppData\Local\Google\Chrome\User Data\Local State
                                          • Size 232KB
                                          • SHA256 444afe7905f528137e81e478bd6958d63f7e97f6ba7584c644db804676bf19f2
                                          • MD5 SHA1 SHA512 SSDEEP TLSH

                                          Local State

                                          • Path C:\Users\Admin\AppData\Local\Google\Chrome\User Data\Local State
                                          • Size 232KB
                                          • SHA256 7dd07452c48a001ec3d616344dc58a8710429896fbe6a5e1068795f11f8ee4b2
                                          • MD5 SHA1 SHA512 SSDEEP TLSH

                                          memory/1664-2-0x00007FF882190000-0x00007FF8822B0000-memory.dmp

                                          memory/1664-11-0x000001FE0BBD0000-0x000001FE0BBD1000-memory.dmp