Analysis

  • user interaction
    yes
  • max time kernel
    24s
  • max time network
    22s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20260911-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20260911-enlocale:en-usos:windows10-2004-x64systemwindows
  • submitted
    11/10/2026, 16:07

General

  • Target
    RzChromaSDK64.dll
  • Size 2.5MB
  • Sample261011-tk3jcsbs7x
  • SHA256 1363f8d521f0099ac6e271bbedc285f4417010f453edc12a44d0ccfede92f3d6
  • MD5 SHA1 SHA512 SSDEEP TLSH

Malware Config

Signatures

  • Suspicious use of NtCreateThreadExHideFromDebugger 1 TTPs 1 IoCs
  • Suspicious use of NtSetInformationThreadHideFromDebugger 1 TTPs 2 IoCs
  • 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
  • Suspicious behavior: EnumeratesProcesses 2 IoCs
  • Suspicious behavior: NtCreateUserProcessBlockNonMicrosoftBinary 5 IoCs
  • Suspicious use of AdjustPrivilegeToken 36 IoCs
  • Suspicious use of FindShellTrayWindow 64 IoCs
  • Suspicious use of SendNotifyMessage 64 IoCs
  • Suspicious use of WriteProcessMemory 17 IoCs

Processes

  • C:\Windows\system32\rundll32.exe
    rundll32.exe C:\Users\Admin\AppData\Local\Temp\RzChromaSDK64.dll,#1
    1⤵
    • Suspicious use of NtCreateThreadExHideFromDebugger
    • Suspicious use of NtSetInformationThreadHideFromDebugger
    PID:4652
  • C:\Program Files\Google\Chrome\Application\chrome.exe
    "C:\Program Files\Google\Chrome\Application\chrome.exe"
    1⤵
    • Checks processor information in registry
    • Enumerates system info in registry
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious behavior: NtCreateUserProcessBlockNonMicrosoftBinary
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of FindShellTrayWindow
    • Suspicious use of SendNotifyMessage
    • Suspicious use of WriteProcessMemory
    PID:5332
    • 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=0x118,0x11c,0x120,0xf4,0x124,0x7ffdb49fc728,0x7ffdb49fc734,0x7ffdb49fc740
      2⤵
        PID:2324
      • 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=1768,i,1785093805244060781,10590266159431920531,262144 --field-trial-handle=1964,i,15725875751956162772,10998165541468342624,262144 --variations-seed-version=20260911-010032.103000-production --mojo-platform-channel-handle=1928 /prefetch:2
        2⤵
          PID:4696
        • 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=2096,i,4492516723872391299,521909201238511569,524288 --field-trial-handle=1964,i,15725875751956162772,10998165541468342624,262144 --variations-seed-version=20260911-010032.103000-production --mojo-platform-channel-handle=2296 /prefetch:3
          2⤵
          • System Time Discovery
          PID:1440
        • 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,15724178533237335512,17443997081966109767,524288 --field-trial-handle=1964,i,15725875751956162772,10998165541468342624,262144 --variations-seed-version=20260911-010032.103000-production --mojo-platform-channel-handle=2580 /prefetch:8
          2⤵
            PID:4892
          • 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=3244,i,11872608115902309370,13036212532929775169,2097152 --field-trial-handle=1964,i,15725875751956162772,10998165541468342624,262144 --variations-seed-version=20260911-010032.103000-production --mojo-platform-channel-handle=3264 /prefetch:1
            2⤵
              PID:5524
            • 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=3272,i,4150576223460924073,10792918130128041039,2097152 --field-trial-handle=1964,i,15725875751956162772,10998165541468342624,262144 --variations-seed-version=20260911-010032.103000-production --mojo-platform-channel-handle=3112 /prefetch:1
              2⤵
                PID:3892
              • 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 --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=4340,i,7020541922473957912,17262706398981511224,2097152 --field-trial-handle=1964,i,15725875751956162772,10998165541468342624,262144 --variations-seed-version=20260911-010032.103000-production --mojo-platform-channel-handle=4356 /prefetch:2
                2⤵
                  PID:5792
                • 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=4684,i,3901831231595383601,4203977059980740491,2097152 --field-trial-handle=1964,i,15725875751956162772,10998165541468342624,262144 --variations-seed-version=20260911-010032.103000-production --mojo-platform-channel-handle=4808 /prefetch:1
                  2⤵
                    PID:840
                  • 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=5580,i,3484009190890870552,11961224007405595017,524288 --field-trial-handle=1964,i,15725875751956162772,10998165541468342624,262144 --variations-seed-version=20260911-010032.103000-production --mojo-platform-channel-handle=5456 /prefetch:8
                    2⤵
                      PID:1220
                    • 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=5588,i,13293849626039200011,1209725542584015006,2097152 --field-trial-handle=1964,i,15725875751956162772,10998165541468342624,262144 --variations-seed-version=20260911-010032.103000-production --mojo-platform-channel-handle=5852 /prefetch:1
                      2⤵
                        PID:1620
                    • 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:4464
                      • C:\Windows\system32\svchost.exe
                        C:\Windows\system32\svchost.exe -k LocalSystemNetworkRestricted -p -s NgcSvc
                        1⤵
                          PID:3788

                        Network

                              MITRE ATT&CK Enterprise v16

                              Replay Monitor

                              Loading Replay Monitor...

                              Downloads

                              61baa692-5afc-4e6c-9e22-b7bc7fdb0d57.tmp

                              • Path C:\Users\Admin\AppData\Local\Google\Chrome\User Data\Default\61baa692-5afc-4e6c-9e22-b7bc7fdb0d57.tmp
                              • Size 17KB
                              • SHA256 a55c9d9bfbff27f4080d00af8282862be9cc6b021b0d1cf3b654e6d1857a1705
                              • MD5 SHA1 SHA512 SSDEEP TLSH

                              633c0c1c-f8f5-4bec-9c72-0db65cdd304b.tmp

                              • Path C:\Users\Admin\AppData\Local\Google\Chrome\User Data\Default\633c0c1c-f8f5-4bec-9c72-0db65cdd304b.tmp
                              • Size 6B
                              • SHA256 4489f9e3e454748b3521eb214e0a5694d562cff3d9ff511cb456953c8f534c00
                              • MD5 SHA1 SHA512

                              f_000007

                              • Path C:\Users\Admin\AppData\Local\Google\Chrome\User Data\Default\Cache\Cache_Data\f_000007
                              • Size 346KB
                              • SHA256 a1ceb3df9fb44cafac57aa6814112f415b31d062f45029b84330a4c8b6ee2223
                              • MD5 SHA1 SHA512 SSDEEP TLSH

                              f_000009

                              • Path C:\Users\Admin\AppData\Local\Google\Chrome\User Data\Default\Cache\Cache_Data\f_000009
                              • Size 39KB
                              • SHA256 20b535fa80c8189e3b87d1803038389960203a886d502bc2ef1857affc2f38d2
                              • MD5 SHA1 SHA512 SSDEEP TLSH

                              2de8c6fd-f3e7-45ea-b965-52926f624a9e.tmp

                              • Path C:\Users\Admin\AppData\Local\Google\Chrome\User Data\Default\Network\2de8c6fd-f3e7-45ea-b965-52926f624a9e.tmp
                              • Size 2B
                              • SHA256 4f53cda18c2baa0c0354bb5f9a3ecbe5ed12ab4d8e11ba873c2f11161202b945
                              • MD5 SHA1 SHA512

                              a2861c93-4af5-4861-a8a9-d3f93790828b.tmp

                              • Path C:\Users\Admin\AppData\Local\Google\Chrome\User Data\Default\a2861c93-4af5-4861-a8a9-d3f93790828b.tmp
                              • Size 12KB
                              • SHA256 e0cc8363ca9837dc1c001b7caf7c9304899f9e287688f43222f26625604cde82
                              • MD5 SHA1 SHA512 SSDEEP TLSH

                              b15700a8-396f-47c0-9e8c-37edf46f804e.tmp

                              • Path C:\Users\Admin\AppData\Local\Google\Chrome\User Data\Default\b15700a8-396f-47c0-9e8c-37edf46f804e.tmp
                              • Size 414B
                              • SHA256 8eb0ebc300e0d3c4714555aab75d37749dd8d65bb5e15b0538660c8e0d274b76
                              • MD5 SHA1 SHA512 TLSH

                              dddb8e11-cf88-48f4-a340-ae552b9e5114.tmp

                              • Path C:\Users\Admin\AppData\Local\Google\Chrome\User Data\dddb8e11-cf88-48f4-a340-ae552b9e5114.tmp
                              • Size 268KB
                              • SHA256 c15e5b29df1e2a3bda5cce5d6f7f4ee3509bc79e8dfaf3bbc9f57ea59d940719
                              • MD5 SHA1 SHA512 SSDEEP TLSH

                              efb6ff41-8a74-4c7a-b462-a47c1fd7e6ea.tmp

                              • Path C:\Users\Admin\AppData\Local\Google\Chrome\User Data\efb6ff41-8a74-4c7a-b462-a47c1fd7e6ea.tmp
                              • Size 130KB
                              • SHA256 e93a28333b7e21ac35d409c1c17bd52fd6df7085076c1a9aaab42e4d95fc4876
                              • MD5 SHA1 SHA512 SSDEEP TLSH