Analysis

  • max time kernel
    145s
  • max time network
    151s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20220812-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20220812-enlocale:en-usos:windows10-2004-x64system
  • submitted
    01/11/2022, 11:29

General

  • Target
    https://forms.office.com/Pages/ResponsePage.aspx?id=9Z1FMFMei02hYgrSNIVG8dcvHiuRZuxOqORd2CKTH7RURUJaVkZNVTdDNlBZQUZTTFNNRzM4OEpONS4u
  • Sample221101-nl3mvscdbr
Score
8/10

Malware Config

Signatures

  • Executes dropped EXE 1 IoCs
  • Drops file in Program Files directory 7 IoCs
  • Enumerates system info in registry 2 TTPs 3 IoCs
  • Suspicious behavior: EnumeratesProcesses 20 IoCs
  • Suspicious behavior: NtCreateUserProcessBlockNonMicrosoftBinary 3 IoCs
  • Suspicious use of FindShellTrayWindow 26 IoCs
  • Suspicious use of SendNotifyMessage 24 IoCs
  • Suspicious use of WriteProcessMemory 64 IoCs

Processes

  • C:\Program Files\Google\Chrome\Application\chrome.exe
    "C:\Program Files\Google\Chrome\Application\chrome.exe" https://forms.office.com/Pages/ResponsePage.aspx?id=9Z1FMFMei02hYgrSNIVG8dcvHiuRZuxOqORd2CKTH7RURUJaVkZNVTdDNlBZQUZTTFNNRzM4OEpONS4u
    1⤵
    • Enumerates system info in registry
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious behavior: NtCreateUserProcessBlockNonMicrosoftBinary
    • Suspicious use of FindShellTrayWindow
    • Suspicious use of SendNotifyMessage
    • Suspicious use of WriteProcessMemory
    PID:1096
    • 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=89.0.4389.114 --initial-client-data=0xfc,0x100,0x104,0xd8,0x108,0x7ffab7104f50,0x7ffab7104f60,0x7ffab7104f70
      2⤵
        PID:3984
      • C:\Program Files\Google\Chrome\Application\chrome.exe
        "C:\Program Files\Google\Chrome\Application\chrome.exe" --type=gpu-process --field-trial-handle=1616,7490817034605276093,5874010300768870117,131072 --gpu-preferences=SAAAAAAAAADgAAAwAAAAAAAAAAAAAAAAAABgAAAAAAAoAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAB4AAAAAAAAAHgAAAAAAAAAKAAAAAQAAAAgAAAAAAAAACgAAAAAAAAAMAAAAAAAAAA4AAAAAAAAABAAAAAAAAAAAAAAAAUAAAAQAAAAAAAAAAAAAAAGAAAAEAAAAAAAAAABAAAABQAAABAAAAAAAAAAAQAAAAYAAAAIAAAAAAAAAAgAAAAAAAAA --mojo-platform-channel-handle=1628 /prefetch:2
        2⤵
          PID:1980
        • C:\Program Files\Google\Chrome\Application\chrome.exe
          "C:\Program Files\Google\Chrome\Application\chrome.exe" --type=utility --utility-sub-type=network.mojom.NetworkService --field-trial-handle=1616,7490817034605276093,5874010300768870117,131072 --lang=en-US --service-sandbox-type=network --mojo-platform-channel-handle=1796 /prefetch:8
          2⤵
          • Suspicious behavior: EnumeratesProcesses
          PID:2284
        • C:\Program Files\Google\Chrome\Application\chrome.exe
          "C:\Program Files\Google\Chrome\Application\chrome.exe" --type=utility --utility-sub-type=storage.mojom.StorageService --field-trial-handle=1616,7490817034605276093,5874010300768870117,131072 --lang=en-US --service-sandbox-type=utility --mojo-platform-channel-handle=2344 /prefetch:8
          2⤵
            PID:3448
          • C:\Program Files\Google\Chrome\Application\chrome.exe
            "C:\Program Files\Google\Chrome\Application\chrome.exe" --type=renderer --field-trial-handle=1616,7490817034605276093,5874010300768870117,131072 --lang=en-US --device-scale-factor=1 --num-raster-threads=1 --renderer-client-id=5 --no-v8-untrusted-code-mitigations --mojo-platform-channel-handle=2968 /prefetch:1
            2⤵
              PID:1008
            • C:\Program Files\Google\Chrome\Application\chrome.exe
              "C:\Program Files\Google\Chrome\Application\chrome.exe" --type=renderer --field-trial-handle=1616,7490817034605276093,5874010300768870117,131072 --lang=en-US --device-scale-factor=1 --num-raster-threads=1 --renderer-client-id=6 --no-v8-untrusted-code-mitigations --mojo-platform-channel-handle=2960 /prefetch:1
              2⤵
                PID:4016
              • 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 --field-trial-handle=1616,7490817034605276093,5874010300768870117,131072 --lang=en-US --service-sandbox-type=utility --mojo-platform-channel-handle=4268 /prefetch:8
                2⤵
                  PID:4492
                • C:\Program Files\Google\Chrome\Application\chrome.exe
                  "C:\Program Files\Google\Chrome\Application\chrome.exe" --type=utility --utility-sub-type=chrome.mojom.UtilWin --field-trial-handle=1616,7490817034605276093,5874010300768870117,131072 --lang=en-US --service-sandbox-type=none --mojo-platform-channel-handle=4696 /prefetch:8
                  2⤵
                  • Suspicious behavior: EnumeratesProcesses
                  PID:1460
                • C:\Program Files\Google\Chrome\Application\chrome.exe
                  "C:\Program Files\Google\Chrome\Application\chrome.exe" --type=utility --utility-sub-type=unzip.mojom.Unzipper --field-trial-handle=1616,7490817034605276093,5874010300768870117,131072 --lang=en-US --service-sandbox-type=utility --mojo-platform-channel-handle=5040 /prefetch:8
                  2⤵
                    PID:2192
                  • C:\Program Files\Google\Chrome\Application\chrome.exe
                    "C:\Program Files\Google\Chrome\Application\chrome.exe" --type=utility --utility-sub-type=chrome.mojom.UtilWin --field-trial-handle=1616,7490817034605276093,5874010300768870117,131072 --lang=en-US --service-sandbox-type=none --mojo-platform-channel-handle=4432 /prefetch:8
                    2⤵
                    • Suspicious behavior: EnumeratesProcesses
                    PID:2680
                  • 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 --field-trial-handle=1616,7490817034605276093,5874010300768870117,131072 --lang=en-US --service-sandbox-type=utility --mojo-platform-channel-handle=5076 /prefetch:8
                    2⤵
                      PID:4340
                    • C:\Program Files\Google\Chrome\Application\chrome.exe
                      "C:\Program Files\Google\Chrome\Application\chrome.exe" --type=utility --utility-sub-type=unzip.mojom.Unzipper --field-trial-handle=1616,7490817034605276093,5874010300768870117,131072 --lang=en-US --service-sandbox-type=utility --mojo-platform-channel-handle=4420 /prefetch:8
                      2⤵
                        PID:2460
                      • 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 --field-trial-handle=1616,7490817034605276093,5874010300768870117,131072 --lang=en-US --service-sandbox-type=utility --mojo-platform-channel-handle=5200 /prefetch:8
                        2⤵
                          PID:4744
                        • C:\Program Files\Google\Chrome\Application\chrome.exe
                          "C:\Program Files\Google\Chrome\Application\chrome.exe" --type=renderer --field-trial-handle=1616,7490817034605276093,5874010300768870117,131072 --disable-gpu-compositing --lang=en-US --extension-process --device-scale-factor=1 --num-raster-threads=1 --renderer-client-id=14 --no-v8-untrusted-code-mitigations --mojo-platform-channel-handle=5152 /prefetch:1
                          2⤵
                            PID:4916
                          • C:\Program Files\Google\Chrome\Application\chrome.exe
                            "C:\Program Files\Google\Chrome\Application\chrome.exe" --type=utility --utility-sub-type=chrome.mojom.UtilWin --field-trial-handle=1616,7490817034605276093,5874010300768870117,131072 --lang=en-US --service-sandbox-type=none --mojo-platform-channel-handle=5156 /prefetch:8
                            2⤵
                            • Suspicious behavior: EnumeratesProcesses
                            PID:5068
                          • C:\Program Files\Google\Chrome\Application\chrome.exe
                            "C:\Program Files\Google\Chrome\Application\chrome.exe" --type=utility --utility-sub-type=chrome.mojom.UtilWin --field-trial-handle=1616,7490817034605276093,5874010300768870117,131072 --lang=en-US --service-sandbox-type=none --mojo-platform-channel-handle=5096 /prefetch:8
                            2⤵
                            • Suspicious behavior: EnumeratesProcesses
                            PID:4956
                          • 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 --field-trial-handle=1616,7490817034605276093,5874010300768870117,131072 --lang=en-US --service-sandbox-type=utility --mojo-platform-channel-handle=4656 /prefetch:8
                            2⤵
                              PID:1940
                            • C:\Program Files\Google\Chrome\Application\chrome.exe
                              "C:\Program Files\Google\Chrome\Application\chrome.exe" --type=utility --utility-sub-type=chrome.mojom.UtilWin --field-trial-handle=1616,7490817034605276093,5874010300768870117,131072 --lang=en-US --service-sandbox-type=none --mojo-platform-channel-handle=4392 /prefetch:8
                              2⤵
                              • Suspicious behavior: EnumeratesProcesses
                              PID:4564
                            • C:\Program Files\Google\Chrome\Application\chrome.exe
                              "C:\Program Files\Google\Chrome\Application\chrome.exe" --type=utility --utility-sub-type=unzip.mojom.Unzipper --field-trial-handle=1616,7490817034605276093,5874010300768870117,131072 --lang=en-US --service-sandbox-type=utility --mojo-platform-channel-handle=2280 /prefetch:8
                              2⤵
                                PID:4492
                              • C:\Program Files\Google\Chrome\Application\chrome.exe
                                "C:\Program Files\Google\Chrome\Application\chrome.exe" --type=utility --utility-sub-type=chrome.mojom.UtilWin --field-trial-handle=1616,7490817034605276093,5874010300768870117,131072 --lang=en-US --service-sandbox-type=none --mojo-platform-channel-handle=1088 /prefetch:8
                                2⤵
                                • Suspicious behavior: EnumeratesProcesses
                                PID:1208
                              • C:\Program Files\Google\Chrome\Application\chrome.exe
                                "C:\Program Files\Google\Chrome\Application\chrome.exe" --type=utility --utility-sub-type=unzip.mojom.Unzipper --field-trial-handle=1616,7490817034605276093,5874010300768870117,131072 --lang=en-US --service-sandbox-type=utility --mojo-platform-channel-handle=4664 /prefetch:8
                                2⤵
                                  PID:3628
                                • C:\Program Files\Google\Chrome\Application\chrome.exe
                                  "C:\Program Files\Google\Chrome\Application\chrome.exe" --type=gpu-process --field-trial-handle=1616,7490817034605276093,5874010300768870117,131072 --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=10.0.19041.546 --gpu-preferences=SAAAAAAAAADoAAAwAAAAAAAAAAAAAAAAAABgAAAQAAAoAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAB4AAAAAAAAAHgAAAAAAAAAKAAAAAQAAAAgAAAAAAAAACgAAAAAAAAAMAAAAAAAAAA4AAAAAAAAABAAAAAAAAAAAAAAAAUAAAAQAAAAAAAAAAAAAAAGAAAAEAAAAAAAAAABAAAABQAAABAAAAAAAAAAAQAAAAYAAAAIAAAAAAAAAAgAAAAAAAAA --mojo-platform-channel-handle=1088 /prefetch:2
                                  2⤵
                                  • Suspicious behavior: EnumeratesProcesses
                                  PID:1684
                                • C:\Program Files\Google\Chrome\Application\chrome.exe
                                  "C:\Program Files\Google\Chrome\Application\chrome.exe" --type=utility --utility-sub-type=unzip.mojom.Unzipper --field-trial-handle=1616,7490817034605276093,5874010300768870117,131072 --lang=en-US --service-sandbox-type=utility --mojo-platform-channel-handle=2252 /prefetch:8
                                  2⤵
                                    PID:3732
                                • C:\Windows\System32\CompPkgSrv.exe
                                  C:\Windows\System32\CompPkgSrv.exe -Embedding
                                  1⤵
                                    PID:1016
                                  • C:\Program Files\Google\Chrome\Application\89.0.4389.114\elevation_service.exe
                                    "C:\Program Files\Google\Chrome\Application\89.0.4389.114\elevation_service.exe"
                                    1⤵
                                    • Drops file in Program Files directory
                                    PID:4292
                                    • C:\Program Files\Google\Chrome\ChromeRecovery\scoped_dir4292_88139232\ChromeRecovery.exe
                                      "C:\Program Files\Google\Chrome\ChromeRecovery\scoped_dir4292_88139232\ChromeRecovery.exe" --appguid={8A69D345-D564-463c-AFF1-A69D9E530F96} --browser-version=89.0.4389.114 --sessionid={cd2d43da-ff73-42eb-9228-255779f95067} --system
                                      2⤵
                                      • Executes dropped EXE
                                      PID:444

                                  Network

                                        MITRE ATT&CK Enterprise v6

                                        Replay Monitor

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                                        Downloads

                                        ChromeRecovery.exe

                                        • Path C:\Program Files\Google\Chrome\ChromeRecovery\scoped_dir4292_88139232\ChromeRecovery.exe
                                        • Size 253KB
                                        • SHA256 82aa3fd6a25cda9e16689cfadea175091be010cecae537e517f392e0bef5ba0f
                                        • MD5 SHA1 SHA512 SSDEEP

                                        Recovery.crx3

                                        • Path C:\Users\Admin\AppData\Local\Google\Chrome\User Data\RecoveryImproved\1.3.36.141\Recovery.crx3
                                        • Size 141KB
                                        • SHA256 7c3a6a7d16ac44c3200f572a764bce7d8fa84b9572dd028b15c59bdccbc0a77d
                                        • MD5 SHA1 SHA512 SSDEEP