Analysis

  • max time kernel
    125s
  • max time network
    155s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20240611-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20240611-enlocale:en-usos:windows10-2004-x64system
  • submitted
    13/06/2024, 03:07

General

  • Target
    $PLUGINSDIR/WinShell.dll
  • Size 3KB
  • Sample240613-dmpsaawbql
  • SHA256 9be85b986ea66a6997dde658abe82b3147ed2a1a3dcb784bb5176f41d22815a6
  • MD5 SHA1 SHA512
Score
3/10

Malware Config

Signatures

  • Program crash 1 IoCs
  • Enumerates system info in registry 2 TTPs 3 IoCs
  • Modifies data under HKEY_USERS 2 IoCs
  • Suspicious behavior: EnumeratesProcesses 2 IoCs
  • Suspicious behavior: NtCreateUserProcessBlockNonMicrosoftBinary 5 IoCs
  • Suspicious use of AdjustPrivilegeToken 64 IoCs
  • Suspicious use of FindShellTrayWindow 27 IoCs
  • Suspicious use of SendNotifyMessage 24 IoCs
  • Suspicious use of WriteProcessMemory 64 IoCs

Processes

  • C:\Windows\system32\rundll32.exe
    rundll32.exe C:\Users\Admin\AppData\Local\Temp\$PLUGINSDIR\WinShell.dll,#1
    1⤵
    • Suspicious use of WriteProcessMemory
    PID:380
    • C:\Windows\SysWOW64\rundll32.exe
      rundll32.exe C:\Users\Admin\AppData\Local\Temp\$PLUGINSDIR\WinShell.dll,#1
      2⤵
        PID:1604
        • C:\Windows\SysWOW64\WerFault.exe
          C:\Windows\SysWOW64\WerFault.exe -u -p 1604 -s 612
          3⤵
          • Program crash
          PID:3412
    • C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -pss -s 408 -p 1604 -ip 1604
      1⤵
        PID:1856
      • 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 --field-trial-handle=4428,i,6522675234395427298,2952738987384583032,262144 --variations-seed-version --mojo-platform-channel-handle=4280 /prefetch:8
        1⤵
          PID:2068
        • C:\Windows\System32\rundll32.exe
          C:\Windows\System32\rundll32.exe C:\Windows\System32\shell32.dll,SHCreateLocalServerRunDll {9aa46009-3ce0-458a-a354-715610a075e6} -Embedding
          1⤵
            PID:5032
          • C:\Program Files\Google\Chrome\Application\chrome.exe
            "C:\Program Files\Google\Chrome\Application\chrome.exe"
            1⤵
            • 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:1408
            • 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:7 --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=110.0.5481.104 --initial-client-data=0x11c,0x120,0x124,0xf8,0x128,0x7ffd3facab58,0x7ffd3facab68,0x7ffd3facab78
              2⤵
                PID:4404
              • C:\Program Files\Google\Chrome\Application\chrome.exe
                "C:\Program Files\Google\Chrome\Application\chrome.exe" --type=gpu-process --gpu-preferences=UAAAAAAAAADgAAAYAAAAAAAAAAAAAAAAAABgAAAAAAAwAAAAAAAAAAAAAAAQAAAAAAAAAAAAAAAAAAAAAAAAAEgAAAAAAAAASAAAAAAAAAAYAAAAAgAAABAAAAAAAAAAGAAAAAAAAAAQAAAAAAAAAAAAAAAOAAAAEAAAAAAAAAABAAAADgAAAAgAAAAAAAAACAAAAAAAAAA= --mojo-platform-channel-handle=1708 --field-trial-handle=1836,i,11627058798057286497,2392669584098521888,131072 /prefetch:2
                2⤵
                  PID:2476
                • 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 --mojo-platform-channel-handle=2188 --field-trial-handle=1836,i,11627058798057286497,2392669584098521888,131072 /prefetch:8
                  2⤵
                    PID:876
                  • 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 --mojo-platform-channel-handle=2256 --field-trial-handle=1836,i,11627058798057286497,2392669584098521888,131072 /prefetch:8
                    2⤵
                      PID:2716
                    • C:\Program Files\Google\Chrome\Application\chrome.exe
                      "C:\Program Files\Google\Chrome\Application\chrome.exe" --type=renderer --first-renderer-process --lang=en-US --device-scale-factor=1 --num-raster-threads=4 --enable-main-frame-before-activation --renderer-client-id=6 --mojo-platform-channel-handle=3108 --field-trial-handle=1836,i,11627058798057286497,2392669584098521888,131072 /prefetch:1
                      2⤵
                        PID:1476
                      • C:\Program Files\Google\Chrome\Application\chrome.exe
                        "C:\Program Files\Google\Chrome\Application\chrome.exe" --type=renderer --lang=en-US --device-scale-factor=1 --num-raster-threads=4 --enable-main-frame-before-activation --renderer-client-id=5 --mojo-platform-channel-handle=3128 --field-trial-handle=1836,i,11627058798057286497,2392669584098521888,131072 /prefetch:1
                        2⤵
                          PID:3084
                        • C:\Program Files\Google\Chrome\Application\chrome.exe
                          "C:\Program Files\Google\Chrome\Application\chrome.exe" --type=renderer --lang=en-US --device-scale-factor=1 --num-raster-threads=4 --enable-main-frame-before-activation --renderer-client-id=7 --mojo-platform-channel-handle=4384 --field-trial-handle=1836,i,11627058798057286497,2392669584098521888,131072 /prefetch:1
                          2⤵
                            PID:2224
                          • C:\Program Files\Google\Chrome\Application\chrome.exe
                            "C:\Program Files\Google\Chrome\Application\chrome.exe" --type=utility --utility-sub-type=data_decoder.mojom.DataDecoderService --lang=en-US --service-sandbox-type=service --mojo-platform-channel-handle=4568 --field-trial-handle=1836,i,11627058798057286497,2392669584098521888,131072 /prefetch:8
                            2⤵
                              PID:2332
                            • C:\Program Files\Google\Chrome\Application\chrome.exe
                              "C:\Program Files\Google\Chrome\Application\chrome.exe" --type=utility --utility-sub-type=data_decoder.mojom.DataDecoderService --lang=en-US --service-sandbox-type=service --mojo-platform-channel-handle=4544 --field-trial-handle=1836,i,11627058798057286497,2392669584098521888,131072 /prefetch:8
                              2⤵
                                PID:2848
                              • 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 --mojo-platform-channel-handle=4756 --field-trial-handle=1836,i,11627058798057286497,2392669584098521888,131072 /prefetch:8
                                2⤵
                                  PID:3068
                                • C:\Program Files\Google\Chrome\Application\chrome.exe
                                  "C:\Program Files\Google\Chrome\Application\chrome.exe" --type=utility --utility-sub-type=data_decoder.mojom.DataDecoderService --lang=en-US --service-sandbox-type=service --mojo-platform-channel-handle=4984 --field-trial-handle=1836,i,11627058798057286497,2392669584098521888,131072 /prefetch:8
                                  2⤵
                                    PID:2848
                                  • 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 --mojo-platform-channel-handle=4868 --field-trial-handle=1836,i,11627058798057286497,2392669584098521888,131072 /prefetch:8
                                    2⤵
                                      PID:1556
                                    • C:\Program Files\Google\Chrome\Application\chrome.exe
                                      "C:\Program Files\Google\Chrome\Application\chrome.exe" --type=renderer --lang=en-US --device-scale-factor=1 --num-raster-threads=4 --enable-main-frame-before-activation --renderer-client-id=13 --mojo-platform-channel-handle=4192 --field-trial-handle=1836,i,11627058798057286497,2392669584098521888,131072 /prefetch:1
                                      2⤵
                                        PID:3972
                                      • C:\Program Files\Google\Chrome\Application\chrome.exe
                                        "C:\Program Files\Google\Chrome\Application\chrome.exe" --type=renderer --lang=en-US --device-scale-factor=1 --num-raster-threads=4 --enable-main-frame-before-activation --renderer-client-id=14 --mojo-platform-channel-handle=3180 --field-trial-handle=1836,i,11627058798057286497,2392669584098521888,131072 /prefetch:1
                                        2⤵
                                          PID:4280
                                      • C:\Program Files\Google\Chrome\Application\110.0.5481.104\elevation_service.exe
                                        "C:\Program Files\Google\Chrome\Application\110.0.5481.104\elevation_service.exe"
                                        1⤵
                                          PID:4644

                                        Network

                                              MITRE ATT&CK Enterprise v15

                                              Replay Monitor

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                                              Downloads

                                              the-real-index

                                              • Path C:\Users\Admin\AppData\Local\Google\Chrome\User Data\Default\Code Cache\js\index-dir\the-real-index
                                              • Size 864B
                                              • SHA256 ab89e15a35849b59c78e713b83e3fd4ae19b980fcfbcad9e3f44c7d0f314b7c8
                                              • MD5 SHA1 SHA512

                                              data_1

                                              • Path C:\Users\Admin\AppData\Local\Google\Chrome\User Data\Default\GPUCache\data_1
                                              • Size 264KB
                                              • SHA256 8442008f94f683483bc98eab245acdda8c145c637646d693b32318d20993bc66
                                              • MD5 SHA1 SHA512 SSDEEP

                                              Network Persistent State

                                              • Path C:\Users\Admin\AppData\Local\Google\Chrome\User Data\Default\Network\Network Persistent State
                                              • Size 4KB
                                              • SHA256 e4ca90f0721a761a2d3d698bd53091a127c10fe4cc90c6f6672329d663ebf78c
                                              • MD5 SHA1 SHA512 SSDEEP

                                              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

                                              TransportSecurity

                                              • Path C:\Users\Admin\AppData\Local\Google\Chrome\User Data\Default\Network\TransportSecurity
                                              • Size 524B
                                              • SHA256 8d9ec36a0a78bbf88654c0a1f28c5bbab73ad1bc4ad5ec86ca4f08c463fe1eed
                                              • MD5 SHA1 SHA512

                                              TransportSecurity

                                              • Path C:\Users\Admin\AppData\Local\Google\Chrome\User Data\Default\Network\TransportSecurity
                                              • Size 356B
                                              • SHA256 50caca43538ad3c6e573f384fe34afea2aaa02d54cae90740bf092e43012154f
                                              • MD5 SHA1 SHA512

                                              TransportSecurity

                                              • Path C:\Users\Admin\AppData\Local\Google\Chrome\User Data\Default\Network\TransportSecurity
                                              • Size 356B
                                              • SHA256 4ae90e49a3e636a55e0fbe0e224112bad6f83000684b97f9234382244dd3588c
                                              • MD5 SHA1 SHA512

                                              TransportSecurity

                                              • Path C:\Users\Admin\AppData\Local\Google\Chrome\User Data\Default\Network\TransportSecurity
                                              • Size 356B
                                              • SHA256 3bdac903754eaea194051b6e68c912bcfad39153d72d0357013ffcc852b373df
                                              • MD5 SHA1 SHA512

                                              Preferences

                                              • Path C:\Users\Admin\AppData\Local\Google\Chrome\User Data\Default\Preferences
                                              • Size 6KB
                                              • SHA256 bb8032f23ee97265a3df6310ea65bfbe811d812ae5eb8854145117eb09cf8adf
                                              • MD5 SHA1 SHA512 SSDEEP

                                              Preferences

                                              • Path C:\Users\Admin\AppData\Local\Google\Chrome\User Data\Default\Preferences
                                              • Size 7KB
                                              • SHA256 24b3959ab6cc3ceaedc113acdfe561ecfabe0be3334b6d848a08f2f7b10c9a66
                                              • MD5 SHA1 SHA512 SSDEEP

                                              Preferences

                                              • Path C:\Users\Admin\AppData\Local\Google\Chrome\User Data\Default\Preferences
                                              • Size 7KB
                                              • SHA256 e088c6ed8ee0e1db08e295b49065ac108e599376e9762acbe5b7dc5bb9548d31
                                              • MD5 SHA1 SHA512 SSDEEP

                                              Preferences

                                              • Path C:\Users\Admin\AppData\Local\Google\Chrome\User Data\Default\Preferences
                                              • Size 7KB
                                              • SHA256 92cb65754054ee168ee38c155c0d5c7e3b766ab73ebdabbaae10bb364efbb74c
                                              • MD5 SHA1 SHA512 SSDEEP

                                              Secure Preferences

                                              • Path C:\Users\Admin\AppData\Local\Google\Chrome\User Data\Default\Secure Preferences
                                              • Size 16KB
                                              • SHA256 50dfc998cc9ac9743ba89790eb7252e59cb803cc474c7acddeaad17e0318a2b2
                                              • MD5 SHA1 SHA512 SSDEEP

                                              index.txt

                                              • Path C:\Users\Admin\AppData\Local\Google\Chrome\User Data\Default\Service Worker\CacheStorage\379f1cbab5b08b6fc9e08681e42d8be311441c88\index.txt
                                              • Size 56B
                                              • SHA256 c58cb79fa4a9ade48ed821dd9f98957b0adfda7c2d267e3d07951c2d371aa968
                                              • MD5 SHA1 SHA512

                                              index.txt~RFe59d2c7.TMP

                                              • Path C:\Users\Admin\AppData\Local\Google\Chrome\User Data\Default\Service Worker\CacheStorage\379f1cbab5b08b6fc9e08681e42d8be311441c88\index.txt~RFe59d2c7.TMP
                                              • Size 120B
                                              • SHA256 595cedbd97cb49dfda6b5eb9d8a01e80062c3755f286dba480106a3794a38eac
                                              • MD5 SHA1 SHA512

                                              Local State

                                              • Path C:\Users\Admin\AppData\Local\Google\Chrome\User Data\Local State
                                              • Size 274KB
                                              • SHA256 ff19325aaf4fc3a09a47cd8297fd2aaedc9952baad2e433fc8db729d17cc8010
                                              • MD5 SHA1 SHA512 SSDEEP

                                              Local State

                                              • Path C:\Users\Admin\AppData\Local\Google\Chrome\User Data\Local State
                                              • Size 274KB
                                              • SHA256 eee81e10963e3fdaba31c93c01d8cdd7b8e206c837c85b0db6442941d544ba52
                                              • MD5 SHA1 SHA512 SSDEEP