Analysis

  • user interaction
    yes
  • max time kernel
    150s
  • max time network
    151s
  • platform
    windows11-21h2_x64
  • resource
    win11-20260130-en
  • resource tags

    arch:x64arch:x86image:win11-20260130-enlocale:en-usos:windows11-21h2-x64systemwindows
  • submitted
    08/05/2026, 16:27

General

  • Target
    CrapInstaller.dll
  • Size 443KB
  • Sample260508-tx9s7set2r
  • SHA256 6ef0a5fac4ccb9d8146917a29893fe8ce6ebaa3eb7f6189402462e288a8736c9
  • MD5 SHA1 SHA512 SSDEEP TLSH
Score
4/10

Malware Config

Signatures

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

    Enumerate browser information.

  • System Location Discovery: System Language Discovery 1 TTPs 5 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 7 IoCs

    Processor information is often read in order to detect sandboxing environments.

  • Enumerates system info in registry 2 TTPs 5 IoCs
  • Modifies data under HKEY_USERS 2 IoCs
  • Modifies registry class 2 IoCs
  • NTFS ADS 1 IoCs
  • Suspicious behavior: EnumeratesProcesses 6 IoCs
  • Suspicious behavior: NtCreateUserProcessBlockNonMicrosoftBinary 6 IoCs
  • Suspicious use of AdjustPrivilegeToken 64 IoCs
  • Suspicious use of FindShellTrayWindow 41 IoCs
  • Suspicious use of SendNotifyMessage 16 IoCs
  • Suspicious use of WriteProcessMemory 26 IoCs

Processes

  • C:\Windows\system32\rundll32.exe
    rundll32.exe C:\Users\Admin\AppData\Local\Temp\CrapInstaller.dll,#1
    1⤵
    • Suspicious use of WriteProcessMemory
    PID:1712
    • C:\Windows\SysWOW64\rundll32.exe
      rundll32.exe C:\Users\Admin\AppData\Local\Temp\CrapInstaller.dll,#1
      2⤵
      • System Location Discovery: System Language Discovery
      PID:4224
  • 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:4700
    • 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,0x100,0x104,0xd8,0x108,0x7ffb5cfdc728,0x7ffb5cfdc734,0x7ffb5cfdc740
      2⤵
        PID:4500
      • 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=1708,i,7042205998001658183,9472716992166786277,262144 --field-trial-handle=1936,i,686801082245094932,7154558603192837313,262144 --variations-seed-version=20260129-170056.646000 --mojo-platform-channel-handle=1932 /prefetch:2
        2⤵
          PID:1100
        • 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=1508,i,7449185675631693407,3207203367712277390,524288 --field-trial-handle=1936,i,686801082245094932,7154558603192837313,262144 --variations-seed-version=20260129-170056.646000 --mojo-platform-channel-handle=2300 /prefetch:11
          2⤵
          • System Time Discovery
          PID:2900
        • 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=2400,i,16627995229709463062,9072690076224060200,524288 --field-trial-handle=1936,i,686801082245094932,7154558603192837313,262144 --variations-seed-version=20260129-170056.646000 --mojo-platform-channel-handle=2568 /prefetch:13
          2⤵
            PID:396
          • 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,10829379080892206509,1412095657390655597,2097152 --field-trial-handle=1936,i,686801082245094932,7154558603192837313,262144 --variations-seed-version=20260129-170056.646000 --mojo-platform-channel-handle=3264 /prefetch:1
            2⤵
              PID:5340
            • 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=3288,i,11479453627677416209,14695257375250671295,2097152 --field-trial-handle=1936,i,686801082245094932,7154558603192837313,262144 --variations-seed-version=20260129-170056.646000 --mojo-platform-channel-handle=3316 /prefetch:1
              2⤵
                PID:5392
              • 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=4220,i,10308487032847207598,17413702475028880589,2097152 --field-trial-handle=1936,i,686801082245094932,7154558603192837313,262144 --variations-seed-version=20260129-170056.646000 --mojo-platform-channel-handle=4228 /prefetch:9
                2⤵
                  PID:5504
                • 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=4632,i,5984731972642623920,18044100444999411036,2097152 --field-trial-handle=1936,i,686801082245094932,7154558603192837313,262144 --variations-seed-version=20260129-170056.646000 --mojo-platform-channel-handle=4640 /prefetch:1
                  2⤵
                    PID:4324
                  • 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=5368,i,14155105629853844451,15637891031883850523,524288 --field-trial-handle=1936,i,686801082245094932,7154558603192837313,262144 --variations-seed-version=20260129-170056.646000 --mojo-platform-channel-handle=5284 /prefetch:14
                    2⤵
                      PID:5880
                    • 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=5364,i,8110963611756814692,14533482830264849677,2097152 --field-trial-handle=1936,i,686801082245094932,7154558603192837313,262144 --variations-seed-version=20260129-170056.646000 --mojo-platform-channel-handle=5668 /prefetch:1
                      2⤵
                        PID:4412
                      • 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=3460,i,16418142752277603161,3898964796547225244,2097152 --field-trial-handle=1936,i,686801082245094932,7154558603192837313,262144 --variations-seed-version=20260129-170056.646000 --mojo-platform-channel-handle=3336 /prefetch:1
                        2⤵
                          PID:5856
                        • 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=3712,i,17723378117887238149,5787925533922483710,524288 --field-trial-handle=1936,i,686801082245094932,7154558603192837313,262144 --variations-seed-version=20260129-170056.646000 --mojo-platform-channel-handle=3088 /prefetch:14
                          2⤵
                            PID:1932
                          • 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=4572,i,7340148852266420405,2386354198031524407,524288 --field-trial-handle=1936,i,686801082245094932,7154558603192837313,262144 --variations-seed-version=20260129-170056.646000 --mojo-platform-channel-handle=4496 /prefetch:14
                            2⤵
                              PID:2120
                            • 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=4672,i,15230704467835085481,10833266800796450313,524288 --field-trial-handle=1936,i,686801082245094932,7154558603192837313,262144 --variations-seed-version=20260129-170056.646000 --mojo-platform-channel-handle=3320 /prefetch:14
                              2⤵
                                PID:5320
                              • C:\Program Files\Google\Chrome\Application\chrome.exe
                                "C:\Program Files\Google\Chrome\Application\chrome.exe" --type=utility --utility-sub-type=quarantine.mojom.Quarantine --lang=en-US --service-sandbox-type=none --force-high-res-timeticks=disabled --metrics-shmem-handle=5816,i,9221981817941607495,6190903698740982835,524288 --field-trial-handle=1936,i,686801082245094932,7154558603192837313,262144 --variations-seed-version=20260129-170056.646000 --mojo-platform-channel-handle=4776 /prefetch:14
                                2⤵
                                • NTFS ADS
                                PID:5620
                              • 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=5572,i,5351404340122751068,10380610788931242720,262144 --field-trial-handle=1936,i,686801082245094932,7154558603192837313,262144 --variations-seed-version=20260129-170056.646000 --mojo-platform-channel-handle=1180 /prefetch:10
                                2⤵
                                • Suspicious behavior: EnumeratesProcesses
                                PID:6088
                            • 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:5652
                              • C:\Windows\system32\svchost.exe
                                C:\Windows\system32\svchost.exe -k LocalSystemNetworkRestricted -p -s NgcSvc
                                1⤵
                                  PID:2708
                                • C:\Windows\System32\rundll32.exe
                                  C:\Windows\System32\rundll32.exe C:\Windows\System32\shell32.dll,SHCreateLocalServerRunDll {9aa46009-3ce0-458a-a354-715610a075e6} -Embedding
                                  1⤵
                                    PID:952
                                  • C:\Users\Admin\AppData\Local\Temp\Temp1_WiiGSC.zip\WiiGSC.exe
                                    "C:\Users\Admin\AppData\Local\Temp\Temp1_WiiGSC.zip\WiiGSC.exe"
                                    1⤵
                                    • System Location Discovery: System Language Discovery
                                    • Suspicious use of WriteProcessMemory
                                    PID:5444
                                    • C:\Windows\Microsoft.NET\Framework\v2.0.50727\dw20.exe
                                      dw20.exe -x -s 916
                                      2⤵
                                      • System Location Discovery: System Language Discovery
                                      • Checks processor information in registry
                                      • Enumerates system info in registry
                                      PID:1696
                                  • C:\Users\Admin\Downloads\WiiGSC\CrazyInstaller.exe
                                    "C:\Users\Admin\Downloads\WiiGSC\CrazyInstaller.exe"
                                    1⤵
                                    • System Location Discovery: System Language Discovery
                                    PID:4692
                                  • C:\Users\Admin\Downloads\WiiGSC\WiiGSC.exe
                                    "C:\Users\Admin\Downloads\WiiGSC\WiiGSC.exe"
                                    1⤵
                                    • System Location Discovery: System Language Discovery
                                    PID:1352

                                  Network

                                        MITRE ATT&CK Enterprise v16

                                        Replay Monitor

                                        Loading Replay Monitor...

                                        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 6f8abcbd90c1ed4936f9cf3ba1c77e481ca5eff207a4942974da34690d197fe9
                                        • 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 2KB
                                        • SHA256 afd5820e1bb23292363356f9642e9e41c7d00c21b8836f427f2d084aaca4b522
                                        • MD5 SHA1 SHA512 TLSH

                                        Network Persistent State

                                        • Path C:\Users\Admin\AppData\Local\Google\Chrome\User Data\Default\Network\Network Persistent State
                                        • Size 6KB
                                        • SHA256 2e022cc9511980589cba434c40d682494d6d223db262dc7714e499a2c42e692a
                                        • 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 5632117e083d0238594daffdea65e8564ebf3b197801bf2817e25239e5856ad5
                                        • MD5 SHA1 SHA512 SSDEEP TLSH

                                        Preferences

                                        • Path C:\Users\Admin\AppData\Local\Google\Chrome\User Data\Default\Preferences
                                        • Size 12KB
                                        • SHA256 adedfe6a482f4838a2327b2dd4bc3e01a9e228cc57d621e7c4e0e8d0f9cd0c58
                                        • MD5 SHA1 SHA512 SSDEEP TLSH

                                        Preferences

                                        • Path C:\Users\Admin\AppData\Local\Google\Chrome\User Data\Default\Preferences
                                        • Size 13KB
                                        • SHA256 9a9dfdd800690f45287c2fe71fe2f99c96bbf3b0abd372c108f67c0366fa624c
                                        • MD5 SHA1 SHA512 SSDEEP TLSH

                                        Secure Preferences

                                        • Path C:\Users\Admin\AppData\Local\Google\Chrome\User Data\Default\Secure Preferences
                                        • Size 17KB
                                        • SHA256 82f19bdaa200c3a3056c6486f8d9171c832143077338572b10c4c0ee03580c4b
                                        • 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 e7aa9ee97a12a058a98b64e08176bb4d8af9bd9519f4fe0392105b5186ddb8b4
                                        • MD5 SHA1 SHA512 TLSH

                                        the-real-index~RFe587903.TMP

                                        • Path C:\Users\Admin\AppData\Local\Google\Chrome\User Data\Default\Service Worker\ScriptCache\index-dir\the-real-index~RFe587903.TMP
                                        • Size 96B
                                        • SHA256 d973c7fb8da2e4cbbf42b01b1fc7321cd50a4afb5a605071da0ba64c3d685be9
                                        • MD5 SHA1 SHA512 TLSH

                                        the-real-index

                                        • Path C:\Users\Admin\AppData\Local\Google\Chrome\User Data\Default\Shared Dictionary\cache\index-dir\the-real-index
                                        • Size 72B
                                        • SHA256 5607b9711b79fb12e82882f9685126c6b78d6d719f063e897eba3e6e9897b000
                                        • MD5 SHA1 SHA512 TLSH

                                        Local State

                                        • Path C:\Users\Admin\AppData\Local\Google\Chrome\User Data\Local State
                                        • Size 90KB
                                        • SHA256 1a9ee8100026296a2cad415277aa25969c470ad3a8fc0ee18a1e0658d1352a52
                                        • MD5 SHA1 SHA512 SSDEEP TLSH

                                        Local State

                                        • Path C:\Users\Admin\AppData\Local\Google\Chrome\User Data\Local State
                                        • Size 201KB
                                        • SHA256 bbca9fd3f6f165a97f70fee9a4bc3ae4fd9c3cd2a2d755d16a068165946aed2d
                                        • MD5 SHA1 SHA512 SSDEEP TLSH

                                        Local State

                                        • Path C:\Users\Admin\AppData\Local\Google\Chrome\User Data\Local State
                                        • Size 202KB
                                        • SHA256 82c731fe01bf109e7b8d2207b11862c673bc149f2e547cce74a2b611202f685f
                                        • MD5 SHA1 SHA512 SSDEEP TLSH

                                        Local State

                                        • Path C:\Users\Admin\AppData\Local\Google\Chrome\User Data\Local State
                                        • Size 201KB
                                        • SHA256 3ac5bd24c8c37ec6e3eae516f3737849eedbefffe6af27035078ed986bc04d02
                                        • MD5 SHA1 SHA512 SSDEEP TLSH

                                        WiiGSC.zip

                                        • Path C:\Users\Admin\Downloads\WiiGSC.zip
                                        • Size 2.5MB
                                        • SHA256 1da88f26ae48afad0815c4399190d92a2941d44cada3566dd026749d76672e82
                                        • MD5 SHA1 SHA512 SSDEEP TLSH

                                        WiiGSC.zip:Zone.Identifier

                                        • Path C:\Users\Admin\Downloads\WiiGSC.zip:Zone.Identifier
                                        • Size 993B
                                        • SHA256 e0c57adbee5d881e8162441ad3753555cd39b73c98f2b623f07d183c6a44a197
                                        • MD5 SHA1 SHA512 TLSH

                                        WiiGSC.exe.Config

                                        • Path C:\Users\Admin\Downloads\WiiGSC\WiiGSC.exe.Config
                                        • Size 1KB
                                        • SHA256 ad05b007301181d122c52b11fd5449d8a072c0c7901ece22b173a24572a939b5
                                        • MD5 SHA1 SHA512 TLSH

                                        memory/952-432-0x000002604DEA0000-0x000002604DED1000-memory.dmp

                                        memory/1352-501-0x00000000063B0000-0x000000000648A000-memory.dmp

                                        memory/4224-0-0x0000000001520000-0x00000000016CC000-memory.dmp

                                        memory/5444-468-0x0000000075331000-0x0000000075332000-memory.dmp

                                        memory/5444-469-0x0000000075330000-0x00000000758E1000-memory.dmp

                                        memory/5444-474-0x0000000075330000-0x00000000758E1000-memory.dmp