Resubmissions

21-03-2022 14:53

220321-r9qvradcep 1

21-03-2022 14:48

220321-r6wltsdccj 10

Analysis

  • max time kernel
    4294211s
  • max time network
    152s
  • platform
    windows7_x64
  • resource
    win7-20220310-en
  • submitted
    21-03-2022 14:48

General

  • Target

    https://1drv.ms/u/s!Am8l3HQNGS9FkANv_22m_9svf1fy?e=IHhf3y

Malware Config

Signatures

  • PlugX

    PlugX is a RAT (Remote Access Trojan) that has been around since 2008.

  • PlugX Rat Payload 8 IoCs
  • Executes dropped EXE 4 IoCs
  • Loads dropped DLL 8 IoCs
  • Reads user/profile data of web browsers 2 TTPs

    Infostealers often target stored browser data, which can include saved credentials etc.

  • Enumerates system info in registry 2 TTPs 3 IoCs
  • Suspicious behavior: EnumeratesProcesses 10 IoCs
  • Suspicious use of AdjustPrivilegeToken 8 IoCs
  • Suspicious use of FindShellTrayWindow 34 IoCs
  • Suspicious use of SendNotifyMessage 32 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://1drv.ms/u/s!Am8l3HQNGS9FkANv_22m_9svf1fy?e=IHhf3y
    1⤵
    • Loads dropped DLL
    • Enumerates system info in registry
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of FindShellTrayWindow
    • Suspicious use of SendNotifyMessage
    • Suspicious use of WriteProcessMemory
    PID:2016
    • 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=0xc0,0xc4,0xc8,0x94,0xcc,0x7fef79f4f50,0x7fef79f4f60,0x7fef79f4f70
      2⤵
        PID:2000
      • 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=1060,17959605174569259184,13517694828255493496,131072 --lang=en-US --service-sandbox-type=network --mojo-platform-channel-handle=1256 /prefetch:8
        2⤵
        • Suspicious behavior: EnumeratesProcesses
        PID:1524
      • C:\Program Files\Google\Chrome\Application\chrome.exe
        "C:\Program Files\Google\Chrome\Application\chrome.exe" --type=gpu-process --field-trial-handle=1060,17959605174569259184,13517694828255493496,131072 --gpu-preferences=SAAAAAAAAADgAAAwAAAAAAAAAAAAAAAAAABgAAAAAAAoAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAB4AAAAAAAAAHgAAAAAAAAAKAAAAAQAAAAgAAAAAAAAACgAAAAAAAAAMAAAAAAAAAA4AAAAAAAAABAAAAAAAAAAAAAAAAUAAAAQAAAAAAAAAAAAAAAGAAAAEAAAAAAAAAABAAAABQAAABAAAAAAAAAAAQAAAAYAAAAIAAAAAAAAAAgAAAAAAAAA --mojo-platform-channel-handle=1108 /prefetch:2
        2⤵
          PID:1528
        • 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=1060,17959605174569259184,13517694828255493496,131072 --lang=en-US --service-sandbox-type=utility --mojo-platform-channel-handle=1648 /prefetch:8
          2⤵
            PID:364
          • C:\Program Files\Google\Chrome\Application\chrome.exe
            "C:\Program Files\Google\Chrome\Application\chrome.exe" --type=renderer --field-trial-handle=1060,17959605174569259184,13517694828255493496,131072 --lang=en-US --device-scale-factor=1 --num-raster-threads=1 --renderer-client-id=5 --no-v8-untrusted-code-mitigations --mojo-platform-channel-handle=2168 /prefetch:1
            2⤵
              PID:1924
            • C:\Program Files\Google\Chrome\Application\chrome.exe
              "C:\Program Files\Google\Chrome\Application\chrome.exe" --type=renderer --field-trial-handle=1060,17959605174569259184,13517694828255493496,131072 --lang=en-US --device-scale-factor=1 --num-raster-threads=1 --renderer-client-id=6 --no-v8-untrusted-code-mitigations --mojo-platform-channel-handle=2076 /prefetch:1
              2⤵
                PID:1804
              • C:\Program Files\Google\Chrome\Application\chrome.exe
                "C:\Program Files\Google\Chrome\Application\chrome.exe" --type=gpu-process --field-trial-handle=1060,17959605174569259184,13517694828255493496,131072 --gpu-preferences=SAAAAAAAAADgAAAwAAAAAAAAAAAAAAAAAABgAAAAAAAoAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAB4AAAAAAAAAHgAAAAAAAAAKAAAAAQAAAAgAAAAAAAAACgAAAAAAAAAMAAAAAAAAAA4AAAAAAAAABAAAAAAAAAAAAAAAAUAAAAQAAAAAAAAAAAAAAAGAAAAEAAAAAAAAAABAAAABQAAABAAAAAAAAAAAQAAAAYAAAAIAAAAAAAAAAgAAAAAAAAA --use-gl=swiftshader-webgl --mojo-platform-channel-handle=3300 /prefetch:2
                2⤵
                  PID:924
                • 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=1060,17959605174569259184,13517694828255493496,131072 --lang=en-US --service-sandbox-type=utility --mojo-platform-channel-handle=2804 /prefetch:8
                  2⤵
                    PID:1496
                  • C:\Program Files\Google\Chrome\Application\chrome.exe
                    "C:\Program Files\Google\Chrome\Application\chrome.exe" --type=renderer --field-trial-handle=1060,17959605174569259184,13517694828255493496,131072 --disable-gpu-compositing --lang=en-US --device-scale-factor=1 --num-raster-threads=1 --renderer-client-id=9 --no-v8-untrusted-code-mitigations --mojo-platform-channel-handle=3024 /prefetch:1
                    2⤵
                      PID:1544
                    • C:\Program Files\Google\Chrome\Application\chrome.exe
                      "C:\Program Files\Google\Chrome\Application\chrome.exe" --type=renderer --field-trial-handle=1060,17959605174569259184,13517694828255493496,131072 --disable-gpu-compositing --lang=en-US --device-scale-factor=1 --num-raster-threads=1 --renderer-client-id=10 --no-v8-untrusted-code-mitigations --mojo-platform-channel-handle=3720 /prefetch:1
                      2⤵
                        PID:1904
                      • 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=1060,17959605174569259184,13517694828255493496,131072 --lang=en-US --service-sandbox-type=utility --mojo-platform-channel-handle=4084 /prefetch:8
                        2⤵
                          PID:2064
                        • C:\Program Files\Google\Chrome\Application\chrome.exe
                          "C:\Program Files\Google\Chrome\Application\chrome.exe" --type=renderer --field-trial-handle=1060,17959605174569259184,13517694828255493496,131072 --disable-gpu-compositing --lang=en-US --device-scale-factor=1 --num-raster-threads=1 --renderer-client-id=12 --no-v8-untrusted-code-mitigations --mojo-platform-channel-handle=4160 /prefetch:1
                          2⤵
                            PID:2100
                          • 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=1060,17959605174569259184,13517694828255493496,131072 --lang=en-US --service-sandbox-type=utility --mojo-platform-channel-handle=3180 /prefetch:8
                            2⤵
                              PID:2172
                            • 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=1060,17959605174569259184,13517694828255493496,131072 --lang=en-US --service-sandbox-type=none --mojo-platform-channel-handle=3600 /prefetch:8
                              2⤵
                              • Suspicious behavior: EnumeratesProcesses
                              PID:2244
                            • 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=1060,17959605174569259184,13517694828255493496,131072 --lang=en-US --service-sandbox-type=utility --mojo-platform-channel-handle=3508 /prefetch:8
                              2⤵
                                PID:2252
                              • 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=1060,17959605174569259184,13517694828255493496,131072 --lang=en-US --service-sandbox-type=utility --mojo-platform-channel-handle=3520 /prefetch:8
                                2⤵
                                  PID:2260
                                • 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=1060,17959605174569259184,13517694828255493496,131072 --lang=en-US --service-sandbox-type=utility --mojo-platform-channel-handle=3480 /prefetch:8
                                  2⤵
                                    PID:2352
                                  • 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=1060,17959605174569259184,13517694828255493496,131072 --lang=en-US --service-sandbox-type=utility --mojo-platform-channel-handle=4396 /prefetch:8
                                    2⤵
                                      PID:2360
                                    • 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=1060,17959605174569259184,13517694828255493496,131072 --lang=en-US --service-sandbox-type=utility --mojo-platform-channel-handle=3568 /prefetch:8
                                      2⤵
                                        PID:2428
                                      • 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=1060,17959605174569259184,13517694828255493496,131072 --lang=en-US --service-sandbox-type=utility --mojo-platform-channel-handle=4420 /prefetch:8
                                        2⤵
                                          PID:2476
                                        • C:\Program Files\Google\Chrome\Application\chrome.exe
                                          "C:\Program Files\Google\Chrome\Application\chrome.exe" --type=renderer --field-trial-handle=1060,17959605174569259184,13517694828255493496,131072 --disable-gpu-compositing --lang=en-US --extension-process --device-scale-factor=1 --num-raster-threads=1 --renderer-client-id=21 --no-v8-untrusted-code-mitigations --mojo-platform-channel-handle=4376 /prefetch:1
                                          2⤵
                                            PID:2524
                                          • C:\Program Files\Google\Chrome\Application\chrome.exe
                                            "C:\Program Files\Google\Chrome\Application\chrome.exe" --type=renderer --field-trial-handle=1060,17959605174569259184,13517694828255493496,131072 --disable-gpu-compositing --lang=en-US --extension-process --device-scale-factor=1 --num-raster-threads=1 --renderer-client-id=22 --no-v8-untrusted-code-mitigations --mojo-platform-channel-handle=4556 /prefetch:1
                                            2⤵
                                              PID:2600
                                            • 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=1060,17959605174569259184,13517694828255493496,131072 --lang=en-US --service-sandbox-type=none --mojo-platform-channel-handle=3564 /prefetch:8
                                              2⤵
                                              • Suspicious behavior: EnumeratesProcesses
                                              PID:2768
                                            • 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=1060,17959605174569259184,13517694828255493496,131072 --lang=en-US --service-sandbox-type=utility --mojo-platform-channel-handle=500 /prefetch:8
                                              2⤵
                                                PID:2860
                                              • 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=1060,17959605174569259184,13517694828255493496,131072 --lang=en-US --service-sandbox-type=none --mojo-platform-channel-handle=2924 /prefetch:8
                                                2⤵
                                                • Suspicious behavior: EnumeratesProcesses
                                                PID:2872
                                              • 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=1060,17959605174569259184,13517694828255493496,131072 --lang=en-US --service-sandbox-type=utility --mojo-platform-channel-handle=3180 /prefetch:8
                                                2⤵
                                                  PID:3016
                                                • 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=1060,17959605174569259184,13517694828255493496,131072 --lang=en-US --service-sandbox-type=utility --mojo-platform-channel-handle=4396 /prefetch:8
                                                  2⤵
                                                    PID:2096
                                                  • C:\Users\Admin\AppData\Local\Google\Chrome\User Data\SwReporter\99.279.200\software_reporter_tool.exe
                                                    "C:\Users\Admin\AppData\Local\Google\Chrome\User Data\SwReporter\99.279.200\software_reporter_tool.exe" --engine=2 --scan-locations=1,2,3,4,5,6,7,8,10 --disabled-locations=9,11 --session-id=owTbYLsfkDI/2Ne39PBi8XbXmP050n8c1dpBH2Tw --registry-suffix=ESET --enable-crash-reporting --srt-field-trial-group-name=NewCleanerUIExperiment
                                                    2⤵
                                                    • Executes dropped EXE
                                                    • Suspicious behavior: EnumeratesProcesses
                                                    • Suspicious use of AdjustPrivilegeToken
                                                    PID:2204
                                                    • \??\c:\users\admin\appdata\local\google\chrome\user data\swreporter\99.279.200\software_reporter_tool.exe
                                                      "c:\users\admin\appdata\local\google\chrome\user data\swreporter\99.279.200\software_reporter_tool.exe" --crash-handler "--database=c:\users\admin\appdata\local\Google\Software Reporter Tool" --url=https://clients2.google.com/cr/report --annotation=plat=Win32 --annotation=prod=ChromeFoil --annotation=ver=99.279.200 --initial-client-data=0x160,0x164,0x168,0x134,0x16c,0x13fca25a0,0x13fca25b0,0x13fca25c0
                                                      3⤵
                                                      • Executes dropped EXE
                                                      • Suspicious use of AdjustPrivilegeToken
                                                      PID:2192
                                                    • \??\c:\users\admin\appdata\local\google\chrome\user data\swreporter\99.279.200\software_reporter_tool.exe
                                                      "c:\users\admin\appdata\local\google\chrome\user data\swreporter\99.279.200\software_reporter_tool.exe" --enable-crash-reporting --use-crash-handler-with-id="\\.\pipe\crashpad_2204_OLSRIPFNZRFTVJGV" --sandboxed-process-id=2 --init-done-notifier=488 --sandbox-mojo-pipe-token=270519787374221931 --mojo-platform-channel-handle=452 --engine=2
                                                      3⤵
                                                      • Executes dropped EXE
                                                      • Loads dropped DLL
                                                      • Suspicious use of AdjustPrivilegeToken
                                                      PID:2332
                                                    • \??\c:\users\admin\appdata\local\google\chrome\user data\swreporter\99.279.200\software_reporter_tool.exe
                                                      "c:\users\admin\appdata\local\google\chrome\user data\swreporter\99.279.200\software_reporter_tool.exe" --enable-crash-reporting --use-crash-handler-with-id="\\.\pipe\crashpad_2204_OLSRIPFNZRFTVJGV" --sandboxed-process-id=3 --init-done-notifier=640 --sandbox-mojo-pipe-token=3970059327492977530 --mojo-platform-channel-handle=636
                                                      3⤵
                                                      • Executes dropped EXE
                                                      • Suspicious use of AdjustPrivilegeToken
                                                      PID:2456

                                                Network

                                                MITRE ATT&CK Enterprise v6

                                                Replay Monitor

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                                                Downloads

                                                • memory/2332-78-0x000000013FCA7000-0x000000013FCA8000-memory.dmp

                                                  Filesize

                                                  4KB

                                                • memory/2332-76-0x000000013FCA7000-0x000000013FCA8000-memory.dmp

                                                  Filesize

                                                  4KB

                                                • memory/2456-114-0x000000013FCA7000-0x000000013FCA8000-memory.dmp

                                                  Filesize

                                                  4KB

                                                • memory/2456-112-0x000000013FCA7000-0x000000013FCA8000-memory.dmp

                                                  Filesize

                                                  4KB