Analysis

  • max time kernel
    1800s
  • max time network
    1631s
  • platform
    windows11-21h2_x64
  • resource
    win11-20241007-en
  • resource tags

    arch:x64arch:x86image:win11-20241007-enlocale:en-usos:windows11-21h2-x64system
  • submitted
    07-12-2024 18:43

General

  • Target

    mh.exe

  • Size

    92KB

  • MD5

    990ced068a35be3f8092c491bf2a6dbb

  • SHA1

    b9303bd5671d66b7b5520da2a12f7243b05235f4

  • SHA256

    22e44f753597c056b7b1eba9728043e7e6dbdf94f0f66f06e6bdd1fdba096fb2

  • SHA512

    28ee629fc56a204f2e40f6f1c42e45dd142800ea07277d8d89f3d7522fbe290d32240668543e679b6e40e6d68b2f9a65cd6bf6168a4d9a79859e49df2ae5f48e

  • SSDEEP

    1536:oPoRMUAPWbUFADNjKxoxQhy45mXKhpwvv2Uj281XQoYYqA:oP4ZSbENer5Toz6qXQ3

Malware Config

Signatures

  • Gh0st RAT payload 4 IoCs
  • Gh0strat

    Gh0st RAT is a remote access tool (RAT) with its source code public and it has been used by multiple Chinese groups.

  • Gh0strat family
  • Modifies firewall policy service 3 TTPs 4 IoCs
  • Executes dropped EXE 1 IoCs
  • Drops file in System32 directory 2 IoCs
  • UPX packed file 6 IoCs

    Detects executables packed with UPX/modified UPX open source packer.

  • System Location Discovery: System Language Discovery 1 TTPs 2 IoCs

    Attempt gather information about the system language of a victim in order to infer the geographical location of that host.

  • Suspicious behavior: EnumeratesProcesses 4 IoCs
  • Suspicious behavior: MapViewOfSection 64 IoCs
  • Suspicious use of AdjustPrivilegeToken 2 IoCs
  • Suspicious use of WriteProcessMemory 64 IoCs

Processes

  • C:\Windows\system32\winlogon.exe
    winlogon.exe
    1⤵
      PID:636
      • C:\Windows\system32\fontdrvhost.exe
        "fontdrvhost.exe"
        2⤵
          PID:804
        • C:\Windows\system32\dwm.exe
          "dwm.exe"
          2⤵
            PID:444
        • C:\Windows\system32\lsass.exe
          C:\Windows\system32\lsass.exe
          1⤵
            PID:692
          • C:\Windows\system32\fontdrvhost.exe
            "fontdrvhost.exe"
            1⤵
              PID:796
            • C:\Windows\system32\svchost.exe
              C:\Windows\system32\svchost.exe -k DcomLaunch -p
              1⤵
                PID:812
                • C:\Windows\system32\wbem\unsecapp.exe
                  C:\Windows\system32\wbem\unsecapp.exe -Embedding
                  2⤵
                    PID:3084
                  • C:\Windows\SystemApps\MicrosoftWindows.Client.CBS_cw5n1h2txyewy\SearchHost.exe
                    "C:\Windows\SystemApps\MicrosoftWindows.Client.CBS_cw5n1h2txyewy\SearchHost.exe" -ServerName:CortanaUI.AppXstmwaab17q5s3y22tp6apqz7a45vwv65.mca
                    2⤵
                      PID:3716
                    • C:\Windows\SystemApps\Microsoft.Windows.StartMenuExperienceHost_cw5n1h2txyewy\StartMenuExperienceHost.exe
                      "C:\Windows\SystemApps\Microsoft.Windows.StartMenuExperienceHost_cw5n1h2txyewy\StartMenuExperienceHost.exe" -ServerName:App.AppXywbrabmsek0gm3tkwpr5kwzbs55tkqay.mca
                      2⤵
                        PID:3724
                      • C:\Windows\System32\RuntimeBroker.exe
                        C:\Windows\System32\RuntimeBroker.exe -Embedding
                        2⤵
                          PID:3808
                        • C:\Windows\System32\RuntimeBroker.exe
                          C:\Windows\System32\RuntimeBroker.exe -Embedding
                          2⤵
                            PID:3888
                          • C:\Windows\system32\DllHost.exe
                            C:\Windows\system32\DllHost.exe /Processid:{3EB3C877-1F16-487C-9050-104DBCD66683}
                            2⤵
                              PID:3972
                            • C:\Windows\system32\DllHost.exe
                              C:\Windows\system32\DllHost.exe /Processid:{973D20D7-562D-44B9-B70B-5A0F49CCDF3F}
                              2⤵
                                PID:4164
                              • C:\Windows\system32\SppExtComObj.exe
                                C:\Windows\system32\SppExtComObj.exe -Embedding
                                2⤵
                                  PID:2724
                                • C:\Windows\system32\DllHost.exe
                                  C:\Windows\system32\DllHost.exe /Processid:{3EB3C877-1F16-487C-9050-104DBCD66683}
                                  2⤵
                                    PID:4376
                                • C:\Windows\system32\svchost.exe
                                  C:\Windows\system32\svchost.exe -k RPCSS -p
                                  1⤵
                                    PID:920
                                  • C:\Windows\system32\svchost.exe
                                    C:\Windows\system32\svchost.exe -k DcomLaunch -p -s LSM
                                    1⤵
                                      PID:972
                                    • C:\Windows\System32\svchost.exe
                                      C:\Windows\System32\svchost.exe -k LocalServiceNetworkRestricted -p -s lmhosts
                                      1⤵
                                        PID:424
                                      • C:\Windows\system32\svchost.exe
                                        C:\Windows\system32\svchost.exe -k netsvcs -p -s gpsvc
                                        1⤵
                                          PID:460
                                        • C:\Windows\System32\svchost.exe
                                          C:\Windows\System32\svchost.exe -k LocalSystemNetworkRestricted -p -s NcbService
                                          1⤵
                                            PID:1052
                                          • C:\Windows\system32\svchost.exe
                                            C:\Windows\system32\svchost.exe -k LocalServiceNetworkRestricted -p -s TimeBrokerSvc
                                            1⤵
                                              PID:1060
                                            • C:\Windows\system32\svchost.exe
                                              C:\Windows\system32\svchost.exe -k LocalServiceNoNetwork -p
                                              1⤵
                                                PID:1108
                                              • C:\Windows\system32\svchost.exe
                                                C:\Windows\system32\svchost.exe -k LocalService -p -s nsi
                                                1⤵
                                                  PID:1204
                                                • C:\Windows\system32\svchost.exe
                                                  C:\Windows\system32\svchost.exe -k netsvcs -p -s Schedule
                                                  1⤵
                                                    PID:1212
                                                  • C:\Windows\System32\svchost.exe
                                                    C:\Windows\System32\svchost.exe -k netprofm -p -s netprofm
                                                    1⤵
                                                      PID:1272
                                                    • C:\Windows\system32\svchost.exe
                                                      C:\Windows\system32\svchost.exe -k netsvcs -p -s ProfSvc
                                                      1⤵
                                                        PID:1288
                                                      • C:\Windows\system32\svchost.exe
                                                        C:\Windows\system32\svchost.exe -k LocalService -p -s DispBrokerDesktopSvc
                                                        1⤵
                                                          PID:1380
                                                        • C:\Windows\system32\svchost.exe
                                                          C:\Windows\system32\svchost.exe -k netsvcs -p -s UserManager
                                                          1⤵
                                                            PID:1436
                                                            • C:\Windows\system32\sihost.exe
                                                              sihost.exe
                                                              2⤵
                                                                PID:2220
                                                            • C:\Windows\System32\svchost.exe
                                                              C:\Windows\System32\svchost.exe -k LocalServiceNetworkRestricted -p -s EventLog
                                                              1⤵
                                                                PID:1480
                                                              • C:\Windows\system32\svchost.exe
                                                                C:\Windows\system32\svchost.exe -k LocalService -p -s EventSystem
                                                                1⤵
                                                                  PID:1596
                                                                • C:\Windows\System32\svchost.exe
                                                                  C:\Windows\System32\svchost.exe -k netsvcs -p -s Themes
                                                                  1⤵
                                                                    PID:1608
                                                                  • C:\Windows\system32\svchost.exe
                                                                    C:\Windows\system32\svchost.exe -k netsvcs -p -s SENS
                                                                    1⤵
                                                                      PID:1704
                                                                    • C:\Windows\system32\svchost.exe
                                                                      C:\Windows\system32\svchost.exe -k NetworkService -p
                                                                      1⤵
                                                                        PID:1708
                                                                      • C:\Windows\System32\svchost.exe
                                                                        C:\Windows\System32\svchost.exe -k LocalSystemNetworkRestricted -p -s AudioEndpointBuilder
                                                                        1⤵
                                                                          PID:1748
                                                                        • C:\Windows\System32\svchost.exe
                                                                          C:\Windows\System32\svchost.exe -k LocalServiceNetworkRestricted -p
                                                                          1⤵
                                                                            PID:1812
                                                                          • C:\Windows\system32\svchost.exe
                                                                            C:\Windows\system32\svchost.exe -k LocalServiceNetworkRestricted -p -s Dhcp
                                                                            1⤵
                                                                              PID:1868
                                                                            • C:\Windows\System32\svchost.exe
                                                                              C:\Windows\System32\svchost.exe -k LocalServiceNetworkRestricted -p
                                                                              1⤵
                                                                                PID:1888
                                                                              • C:\Windows\system32\svchost.exe
                                                                                C:\Windows\system32\svchost.exe -k LocalServiceNetworkRestricted -p
                                                                                1⤵
                                                                                  PID:1896
                                                                                • C:\Windows\system32\svchost.exe
                                                                                  C:\Windows\system32\svchost.exe -k appmodel -p -s StateRepository
                                                                                  1⤵
                                                                                    PID:2020
                                                                                  • C:\Windows\System32\svchost.exe
                                                                                    C:\Windows\System32\svchost.exe -k netsvcs -p -s ShellHWDetection
                                                                                    1⤵
                                                                                      PID:1848
                                                                                    • C:\Windows\System32\spoolsv.exe
                                                                                      C:\Windows\System32\spoolsv.exe
                                                                                      1⤵
                                                                                        PID:2092
                                                                                      • C:\Windows\system32\svchost.exe
                                                                                        C:\Windows\system32\svchost.exe -k LocalServiceNoNetworkFirewall -p
                                                                                        1⤵
                                                                                          PID:2148
                                                                                        • C:\Windows\System32\svchost.exe
                                                                                          C:\Windows\System32\svchost.exe -k NetworkService -p -s LanmanWorkstation
                                                                                          1⤵
                                                                                            PID:2228
                                                                                          • C:\Windows\system32\svchost.exe
                                                                                            C:\Windows\system32\svchost.exe -k NetworkService -p
                                                                                            1⤵
                                                                                              PID:2432
                                                                                            • C:\Windows\system32\svchost.exe
                                                                                              C:\Windows\system32\svchost.exe -k netsvcs -p -s IKEEXT
                                                                                              1⤵
                                                                                                PID:2468
                                                                                              • C:\Windows\System32\svchost.exe
                                                                                                C:\Windows\System32\svchost.exe -k LocalServiceNetworkRestricted -s RmSvc
                                                                                                1⤵
                                                                                                  PID:2488
                                                                                                • C:\Windows\system32\svchost.exe
                                                                                                  C:\Windows\system32\svchost.exe -k NetworkServiceNetworkRestricted -p -s PolicyAgent
                                                                                                  1⤵
                                                                                                    PID:2516
                                                                                                  • C:\Windows\system32\svchost.exe
                                                                                                    C:\Windows\system32\svchost.exe -k netsvcs -p -s LanmanServer
                                                                                                    1⤵
                                                                                                      PID:2560
                                                                                                    • C:\Windows\sysmon.exe
                                                                                                      C:\Windows\sysmon.exe
                                                                                                      1⤵
                                                                                                        PID:2584
                                                                                                      • C:\Windows\system32\svchost.exe
                                                                                                        C:\Windows\system32\svchost.exe -k netsvcs -p -s Winmgmt
                                                                                                        1⤵
                                                                                                          PID:2628
                                                                                                        • C:\Windows\system32\svchost.exe
                                                                                                          C:\Windows\system32\svchost.exe -k netsvcs -p -s WpnService
                                                                                                          1⤵
                                                                                                            PID:2636
                                                                                                          • C:\Windows\System32\svchost.exe
                                                                                                            C:\Windows\System32\svchost.exe -k LocalSystemNetworkRestricted -p -s TrkWks
                                                                                                            1⤵
                                                                                                              PID:2644
                                                                                                            • C:\Windows\system32\svchost.exe
                                                                                                              C:\Windows\system32\svchost.exe -k UnistackSvcGroup -s CDPUserSvc
                                                                                                              1⤵
                                                                                                                PID:2344
                                                                                                              • C:\Windows\Explorer.EXE
                                                                                                                C:\Windows\Explorer.EXE
                                                                                                                1⤵
                                                                                                                  PID:3324
                                                                                                                  • C:\Users\Admin\AppData\Local\Temp\mh.exe
                                                                                                                    "C:\Users\Admin\AppData\Local\Temp\mh.exe"
                                                                                                                    2⤵
                                                                                                                    • Modifies firewall policy service
                                                                                                                    • Drops file in System32 directory
                                                                                                                    • System Location Discovery: System Language Discovery
                                                                                                                    • Suspicious behavior: EnumeratesProcesses
                                                                                                                    • Suspicious behavior: MapViewOfSection
                                                                                                                    • Suspicious use of AdjustPrivilegeToken
                                                                                                                    • Suspicious use of WriteProcessMemory
                                                                                                                    PID:5780
                                                                                                                • C:\Windows\system32\svchost.exe
                                                                                                                  C:\Windows\system32\svchost.exe -k ClipboardSvcGroup -p -s cbdhsvc
                                                                                                                  1⤵
                                                                                                                    PID:3444
                                                                                                                  • C:\Windows\system32\svchost.exe
                                                                                                                    C:\Windows\system32\svchost.exe -k netsvcs -p -s Appinfo
                                                                                                                    1⤵
                                                                                                                      PID:3492
                                                                                                                    • C:\Windows\system32\svchost.exe
                                                                                                                      C:\Windows\system32\svchost.exe -k UdkSvcGroup -s UdkUserSvc
                                                                                                                      1⤵
                                                                                                                        PID:3944
                                                                                                                      • C:\Windows\system32\svchost.exe
                                                                                                                        C:\Windows\system32\svchost.exe -k osprivacy -p -s camsvc
                                                                                                                        1⤵
                                                                                                                          PID:4456
                                                                                                                        • C:\Windows\system32\svchost.exe
                                                                                                                          C:\Windows\system32\svchost.exe -k LocalService -p -s CDPSvc
                                                                                                                          1⤵
                                                                                                                            PID:2356
                                                                                                                          • C:\Windows\System32\svchost.exe
                                                                                                                            C:\Windows\System32\svchost.exe -k LocalSystemNetworkRestricted -p -s StorSvc
                                                                                                                            1⤵
                                                                                                                              PID:4876
                                                                                                                            • C:\Windows\system32\svchost.exe
                                                                                                                              C:\Windows\system32\svchost.exe -k LocalServiceNetworkRestricted -p -s WinHttpAutoProxySvc
                                                                                                                              1⤵
                                                                                                                                PID:5720
                                                                                                                              • C:\Program Files\Common Files\Microsoft Shared\ClickToRun\OfficeClickToRun.exe
                                                                                                                                "C:\Program Files\Common Files\Microsoft Shared\ClickToRun\OfficeClickToRun.exe" /service
                                                                                                                                1⤵
                                                                                                                                  PID:5980
                                                                                                                                • C:\Windows\System32\svchost.exe
                                                                                                                                  C:\Windows\System32\svchost.exe -k LocalService -p -s LicenseManager
                                                                                                                                  1⤵
                                                                                                                                    PID:6016
                                                                                                                                  • C:\Windows\system32\svchost.exe
                                                                                                                                    C:\Windows\system32\svchost.exe -k netsvcs -p -s wlidsvc
                                                                                                                                    1⤵
                                                                                                                                      PID:1104
                                                                                                                                    • C:\Windows\system32\svchost.exe
                                                                                                                                      C:\Windows\system32\svchost.exe -k LocalServiceNetworkRestricted -p -s NgcCtnrSvc
                                                                                                                                      1⤵
                                                                                                                                        PID:3348
                                                                                                                                      • C:\Windows\SysWOW64\gyggue.exe
                                                                                                                                        C:\Windows\SysWOW64\gyggue.exe
                                                                                                                                        1⤵
                                                                                                                                        • Executes dropped EXE
                                                                                                                                        • System Location Discovery: System Language Discovery
                                                                                                                                        • Suspicious behavior: EnumeratesProcesses
                                                                                                                                        • Suspicious use of AdjustPrivilegeToken
                                                                                                                                        PID:2800

                                                                                                                                      Network

                                                                                                                                      MITRE ATT&CK Enterprise v15

                                                                                                                                      Replay Monitor

                                                                                                                                      Loading Replay Monitor...

                                                                                                                                      Downloads

                                                                                                                                      • C:\Windows\SysWOW64\gyggue.exe

                                                                                                                                        Filesize

                                                                                                                                        92KB

                                                                                                                                        MD5

                                                                                                                                        990ced068a35be3f8092c491bf2a6dbb

                                                                                                                                        SHA1

                                                                                                                                        b9303bd5671d66b7b5520da2a12f7243b05235f4

                                                                                                                                        SHA256

                                                                                                                                        22e44f753597c056b7b1eba9728043e7e6dbdf94f0f66f06e6bdd1fdba096fb2

                                                                                                                                        SHA512

                                                                                                                                        28ee629fc56a204f2e40f6f1c42e45dd142800ea07277d8d89f3d7522fbe290d32240668543e679b6e40e6d68b2f9a65cd6bf6168a4d9a79859e49df2ae5f48e

                                                                                                                                      • memory/2800-59-0x0000000000400000-0x0000000000436000-memory.dmp

                                                                                                                                        Filesize

                                                                                                                                        216KB

                                                                                                                                      • memory/2800-39-0x0000000000400000-0x0000000000436000-memory.dmp

                                                                                                                                        Filesize

                                                                                                                                        216KB

                                                                                                                                      • memory/2800-19-0x0000000000400000-0x0000000000436000-memory.dmp

                                                                                                                                        Filesize

                                                                                                                                        216KB

                                                                                                                                      • memory/5780-11-0x000000007FE60000-0x000000007FE6C000-memory.dmp

                                                                                                                                        Filesize

                                                                                                                                        48KB

                                                                                                                                      • memory/5780-5-0x000000007FE70000-0x000000007FE7C000-memory.dmp

                                                                                                                                        Filesize

                                                                                                                                        48KB

                                                                                                                                      • memory/5780-4-0x000000007FE70000-0x000000007FE7C000-memory.dmp

                                                                                                                                        Filesize

                                                                                                                                        48KB

                                                                                                                                      • memory/5780-9-0x000000007FE60000-0x000000007FE6C000-memory.dmp

                                                                                                                                        Filesize

                                                                                                                                        48KB

                                                                                                                                      • memory/5780-0-0x0000000000400000-0x0000000000436000-memory.dmp

                                                                                                                                        Filesize

                                                                                                                                        216KB

                                                                                                                                      • memory/5780-10-0x000000007FE60000-0x000000007FE6C000-memory.dmp

                                                                                                                                        Filesize

                                                                                                                                        48KB

                                                                                                                                      • memory/5780-12-0x000000007FE60000-0x000000007FE6C000-memory.dmp

                                                                                                                                        Filesize

                                                                                                                                        48KB

                                                                                                                                      • memory/5780-15-0x000000007FE70000-0x000000007FE7C000-memory.dmp

                                                                                                                                        Filesize

                                                                                                                                        48KB

                                                                                                                                      • memory/5780-18-0x0000000000400000-0x0000000000436000-memory.dmp

                                                                                                                                        Filesize

                                                                                                                                        216KB

                                                                                                                                      • memory/5780-2-0x00000000774B4000-0x00000000774B5000-memory.dmp

                                                                                                                                        Filesize

                                                                                                                                        4KB

                                                                                                                                      • memory/5780-3-0x00000000774B5000-0x00000000774B6000-memory.dmp

                                                                                                                                        Filesize

                                                                                                                                        4KB

                                                                                                                                      • memory/5780-1-0x000000007FE70000-0x000000007FE7C000-memory.dmp

                                                                                                                                        Filesize

                                                                                                                                        48KB