Analysis

  • max time kernel
    150s
  • max time network
    124s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20230221-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20230221-enlocale:en-usos:windows10-2004-x64system
  • submitted
    27-03-2023 09:33

General

  • Target

    HkMh_3.exe

  • Size

    176KB

  • MD5

    0cae2144249cca11917ce26657fc0281

  • SHA1

    e7ffc36c62c26e987c6954e4739a306a95d119e1

  • SHA256

    5fa749158a4dd5dd030bb97a5ca74a542ae4661b2a76ec69b29d41c3a32e8767

  • SHA512

    50c5ea18407b74fc5d741d602c87a28c0bfebb348a8ff1710026951937b1e9077a353ee0b9bf2eb648b83a60e34a5e934d8b95c1b7e1202933aea875e6975027

  • SSDEEP

    3072:MBFDC2a8kkalMLmNTMeN1vT72dPxIhf+5HS5LTbl2NBX9ZdebJR3u:M/inHlN1vTyTIBEHkTbl2zn0bJR

Score
10/10

Malware Config

Signatures

  • Gh0st RAT payload 6 IoCs
  • Gh0strat

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

  • Modifies firewall policy service 2 TTPs 4 IoCs
  • Executes dropped EXE 1 IoCs
  • Drops file in System32 directory 2 IoCs
  • 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\lsass.exe
    C:\Windows\system32\lsass.exe
    1⤵
      PID:676
    • C:\Windows\system32\winlogon.exe
      winlogon.exe
      1⤵
        PID:592
        • C:\Windows\system32\fontdrvhost.exe
          "fontdrvhost.exe"
          2⤵
            PID:780
          • C:\Windows\system32\dwm.exe
            "dwm.exe"
            2⤵
              PID:64
          • C:\Windows\system32\svchost.exe
            C:\Windows\system32\svchost.exe -k netsvcs -p -s gpsvc
            1⤵
              PID:528
            • C:\Windows\System32\RuntimeBroker.exe
              C:\Windows\System32\RuntimeBroker.exe -Embedding
              1⤵
                PID:3624
              • C:\Windows\system32\svchost.exe
                C:\Windows\system32\svchost.exe -k LocalService -s W32Time
                1⤵
                  PID:3816
                • C:\Windows\system32\wbem\wmiprvse.exe
                  C:\Windows\system32\wbem\wmiprvse.exe
                  1⤵
                    PID:4428
                  • C:\Windows\System32\svchost.exe
                    C:\Windows\System32\svchost.exe -k WerSvcGroup
                    1⤵
                      PID:424
                    • C:\Windows\System32\RuntimeBroker.exe
                      C:\Windows\System32\RuntimeBroker.exe -Embedding
                      1⤵
                        PID:4752
                      • C:\Windows\system32\svchost.exe
                        C:\Windows\system32\svchost.exe -k netsvcs -p -s wlidsvc
                        1⤵
                          PID:4000
                        • C:\Windows\System32\svchost.exe
                          C:\Windows\System32\svchost.exe -k netsvcs -p
                          1⤵
                            PID:1560
                          • C:\Windows\system32\backgroundTaskHost.exe
                            "C:\Windows\system32\backgroundTaskHost.exe" -ServerName:CortanaUI.AppX3bn25b6f886wmg6twh46972vprk9tnbf.mca
                            1⤵
                              PID:4524
                            • C:\Windows\system32\backgroundTaskHost.exe
                              "C:\Windows\system32\backgroundTaskHost.exe" -ServerName:App.AppX53ypgrj20bgndg05hj3tc7z654myszwp.mca
                              1⤵
                                PID:4548
                              • C:\Windows\System32\svchost.exe
                                C:\Windows\System32\svchost.exe -k LocalService -p -s LicenseManager
                                1⤵
                                  PID:3204
                                • C:\Windows\system32\SppExtComObj.exe
                                  C:\Windows\system32\SppExtComObj.exe -Embedding
                                  1⤵
                                    PID:3328
                                  • C:\Windows\system32\svchost.exe
                                    C:\Windows\system32\svchost.exe -k LocalServiceNetworkRestricted -p -s WinHttpAutoProxySvc
                                    1⤵
                                      PID:3344
                                    • C:\Windows\system32\svchost.exe
                                      C:\Windows\system32\svchost.exe -k LocalService -p -s CDPSvc
                                      1⤵
                                        PID:3604
                                      • C:\Windows\System32\svchost.exe
                                        C:\Windows\System32\svchost.exe -k LocalSystemNetworkRestricted -p -s StorSvc
                                        1⤵
                                          PID:1160
                                        • C:\Windows\System32\RuntimeBroker.exe
                                          C:\Windows\System32\RuntimeBroker.exe -Embedding
                                          1⤵
                                            PID:4972
                                          • C:\Windows\system32\DllHost.exe
                                            C:\Windows\system32\DllHost.exe /Processid:{3EB3C877-1F16-487C-9050-104DBCD66683}
                                            1⤵
                                              PID:4720
                                            • C:\Windows\System32\RuntimeBroker.exe
                                              C:\Windows\System32\RuntimeBroker.exe -Embedding
                                              1⤵
                                                PID:4028
                                              • C:\Windows\SystemApps\Microsoft.Windows.Search_cw5n1h2txyewy\SearchApp.exe
                                                "C:\Windows\SystemApps\Microsoft.Windows.Search_cw5n1h2txyewy\SearchApp.exe" -ServerName:CortanaUI.AppX8z9r6jm96hw4bsbneegw0kyxx296wr9t.mca
                                                1⤵
                                                  PID:3768
                                                • C:\Windows\SystemApps\Microsoft.Windows.StartMenuExperienceHost_cw5n1h2txyewy\StartMenuExperienceHost.exe
                                                  "C:\Windows\SystemApps\Microsoft.Windows.StartMenuExperienceHost_cw5n1h2txyewy\StartMenuExperienceHost.exe" -ServerName:App.AppXywbrabmsek0gm3tkwpr5kwzbs55tkqay.mca
                                                  1⤵
                                                    PID:3552
                                                  • C:\Windows\system32\DllHost.exe
                                                    C:\Windows\system32\DllHost.exe /Processid:{3EB3C877-1F16-487C-9050-104DBCD66683}
                                                    1⤵
                                                      PID:3456
                                                    • C:\Windows\system32\svchost.exe
                                                      C:\Windows\system32\svchost.exe -k ClipboardSvcGroup -p -s cbdhsvc
                                                      1⤵
                                                        PID:3272
                                                      • C:\Windows\Explorer.EXE
                                                        C:\Windows\Explorer.EXE
                                                        1⤵
                                                          PID:3108
                                                          • C:\Users\Admin\AppData\Local\Temp\HkMh_3.exe
                                                            "C:\Users\Admin\AppData\Local\Temp\HkMh_3.exe"
                                                            2⤵
                                                            • Modifies firewall policy service
                                                            • Drops file in System32 directory
                                                            • Suspicious behavior: EnumeratesProcesses
                                                            • Suspicious behavior: MapViewOfSection
                                                            • Suspicious use of AdjustPrivilegeToken
                                                            • Suspicious use of WriteProcessMemory
                                                            PID:992
                                                        • C:\Windows\system32\wbem\unsecapp.exe
                                                          C:\Windows\system32\wbem\unsecapp.exe -Embedding
                                                          1⤵
                                                            PID:3044
                                                          • 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 netsvcs -p -s Winmgmt
                                                              1⤵
                                                                PID:2608
                                                              • C:\Windows\System32\svchost.exe
                                                                C:\Windows\System32\svchost.exe -k LocalSystemNetworkRestricted -p -s TrkWks
                                                                1⤵
                                                                  PID:2600
                                                                • C:\Windows\sysmon.exe
                                                                  C:\Windows\sysmon.exe
                                                                  1⤵
                                                                    PID:2568
                                                                  • C:\Windows\system32\svchost.exe
                                                                    C:\Windows\system32\svchost.exe -k netsvcs -p -s LanmanServer
                                                                    1⤵
                                                                      PID:2540
                                                                    • C:\Windows\system32\svchost.exe
                                                                      C:\Windows\system32\svchost.exe -k NetworkService -p -s CryptSvc
                                                                      1⤵
                                                                        PID:2492
                                                                      • C:\Windows\system32\taskhostw.exe
                                                                        taskhostw.exe {222A245B-E637-4AE9-A93F-A59CA119A75E}
                                                                        1⤵
                                                                          PID:2484
                                                                        • C:\Program Files\Common Files\Microsoft Shared\ClickToRun\OfficeClickToRun.exe
                                                                          "C:\Program Files\Common Files\Microsoft Shared\ClickToRun\OfficeClickToRun.exe" /service
                                                                          1⤵
                                                                            PID:2476
                                                                          • C:\Windows\system32\svchost.exe
                                                                            C:\Windows\system32\svchost.exe -k netsvcs -p -s IKEEXT
                                                                            1⤵
                                                                              PID:2432
                                                                            • C:\Windows\system32\svchost.exe
                                                                              C:\Windows\system32\svchost.exe -k NetworkServiceNetworkRestricted -p -s PolicyAgent
                                                                              1⤵
                                                                                PID:2424
                                                                              • C:\Windows\system32\svchost.exe
                                                                                C:\Windows\system32\svchost.exe -k UnistackSvcGroup -s CDPUserSvc
                                                                                1⤵
                                                                                  PID:2352
                                                                                • C:\Windows\system32\sihost.exe
                                                                                  sihost.exe
                                                                                  1⤵
                                                                                    PID:2336
                                                                                  • C:\Windows\System32\svchost.exe
                                                                                    C:\Windows\System32\svchost.exe -k LocalServiceNetworkRestricted -s RmSvc
                                                                                    1⤵
                                                                                      PID:2172
                                                                                    • C:\Windows\System32\svchost.exe
                                                                                      C:\Windows\System32\svchost.exe -k NetworkService -p -s LanmanWorkstation
                                                                                      1⤵
                                                                                        PID:2080
                                                                                      • C:\Windows\system32\svchost.exe
                                                                                        C:\Windows\system32\svchost.exe -k LocalServiceNoNetworkFirewall -p
                                                                                        1⤵
                                                                                          PID:1716
                                                                                        • C:\Windows\System32\spoolsv.exe
                                                                                          C:\Windows\System32\spoolsv.exe
                                                                                          1⤵
                                                                                            PID:1288
                                                                                          • C:\Windows\system32\svchost.exe
                                                                                            C:\Windows\system32\svchost.exe -k appmodel -p -s StateRepository
                                                                                            1⤵
                                                                                              PID:1956
                                                                                            • C:\Windows\System32\svchost.exe
                                                                                              C:\Windows\System32\svchost.exe -k netsvcs -p -s ShellHWDetection
                                                                                              1⤵
                                                                                                PID:1924
                                                                                              • C:\Windows\System32\svchost.exe
                                                                                                C:\Windows\System32\svchost.exe -k LocalServiceNetworkRestricted -p
                                                                                                1⤵
                                                                                                  PID:1864
                                                                                                • C:\Windows\system32\svchost.exe
                                                                                                  C:\Windows\system32\svchost.exe -k NetworkService -p -s Dnscache
                                                                                                  1⤵
                                                                                                    PID:1856
                                                                                                  • C:\Windows\System32\svchost.exe
                                                                                                    C:\Windows\System32\svchost.exe -k LocalServiceNetworkRestricted -p
                                                                                                    1⤵
                                                                                                      PID:1764
                                                                                                    • C:\Windows\System32\svchost.exe
                                                                                                      C:\Windows\System32\svchost.exe -k LocalService -p -s netprofm
                                                                                                      1⤵
                                                                                                        PID:1752
                                                                                                      • C:\Windows\System32\svchost.exe
                                                                                                        C:\Windows\System32\svchost.exe -k LocalSystemNetworkRestricted -p -s AudioEndpointBuilder
                                                                                                        1⤵
                                                                                                          PID:1668
                                                                                                        • C:\Windows\System32\svchost.exe
                                                                                                          C:\Windows\System32\svchost.exe -k NetworkService -p -s NlaSvc
                                                                                                          1⤵
                                                                                                            PID:1656
                                                                                                          • C:\Windows\system32\svchost.exe
                                                                                                            C:\Windows\system32\svchost.exe -k netsvcs -p -s SENS
                                                                                                            1⤵
                                                                                                              PID:1608
                                                                                                            • C:\Windows\system32\svchost.exe
                                                                                                              C:\Windows\system32\svchost.exe -k LocalServiceNetworkRestricted -p -s Dhcp
                                                                                                              1⤵
                                                                                                                PID:1512
                                                                                                              • C:\Windows\System32\svchost.exe
                                                                                                                C:\Windows\System32\svchost.exe -k netsvcs -p -s Themes
                                                                                                                1⤵
                                                                                                                  PID:1448
                                                                                                                • C:\Windows\system32\svchost.exe
                                                                                                                  C:\Windows\system32\svchost.exe -k LocalService -p -s EventSystem
                                                                                                                  1⤵
                                                                                                                    PID:1432
                                                                                                                  • C:\Windows\system32\svchost.exe
                                                                                                                    C:\Windows\system32\svchost.exe -k LocalService -p -s nsi
                                                                                                                    1⤵
                                                                                                                      PID:1412
                                                                                                                    • C:\Windows\system32\svchost.exe
                                                                                                                      C:\Windows\system32\svchost.exe -k netsvcs -p -s UserManager
                                                                                                                      1⤵
                                                                                                                        PID:1372
                                                                                                                      • C:\Windows\System32\svchost.exe
                                                                                                                        C:\Windows\System32\svchost.exe -k LocalServiceNetworkRestricted -p -s EventLog
                                                                                                                        1⤵
                                                                                                                          PID:1256
                                                                                                                        • C:\Windows\system32\svchost.exe
                                                                                                                          C:\Windows\system32\svchost.exe -k LocalService -p -s DispBrokerDesktopSvc
                                                                                                                          1⤵
                                                                                                                            PID:1180
                                                                                                                          • C:\Windows\system32\svchost.exe
                                                                                                                            C:\Windows\system32\svchost.exe -k netsvcs -p -s ProfSvc
                                                                                                                            1⤵
                                                                                                                              PID:1148
                                                                                                                            • C:\Windows\system32\svchost.exe
                                                                                                                              C:\Windows\system32\svchost.exe -k LocalServiceNetworkRestricted -p -s TimeBrokerSvc
                                                                                                                              1⤵
                                                                                                                                PID:1128
                                                                                                                              • C:\Windows\system32\svchost.exe
                                                                                                                                C:\Windows\system32\svchost.exe -k netsvcs -p -s Schedule
                                                                                                                                1⤵
                                                                                                                                  PID:1064
                                                                                                                                • C:\Windows\System32\svchost.exe
                                                                                                                                  C:\Windows\System32\svchost.exe -k LocalSystemNetworkRestricted -p -s NcbService
                                                                                                                                  1⤵
                                                                                                                                    PID:1036
                                                                                                                                  • C:\Windows\system32\svchost.exe
                                                                                                                                    C:\Windows\system32\svchost.exe -k LocalServiceNoNetwork -p
                                                                                                                                    1⤵
                                                                                                                                      PID:868
                                                                                                                                    • C:\Windows\System32\svchost.exe
                                                                                                                                      C:\Windows\System32\svchost.exe -k LocalServiceNetworkRestricted -p -s lmhosts
                                                                                                                                      1⤵
                                                                                                                                        PID:720
                                                                                                                                      • C:\Windows\system32\svchost.exe
                                                                                                                                        C:\Windows\system32\svchost.exe -k DcomLaunch -p -s LSM
                                                                                                                                        1⤵
                                                                                                                                          PID:952
                                                                                                                                        • C:\Windows\system32\svchost.exe
                                                                                                                                          C:\Windows\system32\svchost.exe -k RPCSS -p
                                                                                                                                          1⤵
                                                                                                                                            PID:904
                                                                                                                                          • C:\Windows\system32\svchost.exe
                                                                                                                                            C:\Windows\system32\svchost.exe -k DcomLaunch -p
                                                                                                                                            1⤵
                                                                                                                                              PID:796
                                                                                                                                            • C:\Windows\system32\fontdrvhost.exe
                                                                                                                                              "fontdrvhost.exe"
                                                                                                                                              1⤵
                                                                                                                                                PID:788
                                                                                                                                              • C:\Windows\SysWOW64\ewayws.exe
                                                                                                                                                C:\Windows\SysWOW64\ewayws.exe
                                                                                                                                                1⤵
                                                                                                                                                • Executes dropped EXE
                                                                                                                                                • Suspicious behavior: EnumeratesProcesses
                                                                                                                                                • Suspicious use of AdjustPrivilegeToken
                                                                                                                                                PID:932

                                                                                                                                              Network

                                                                                                                                              MITRE ATT&CK Matrix ATT&CK v6

                                                                                                                                              Persistence

                                                                                                                                              Modify Existing Service

                                                                                                                                              1
                                                                                                                                              T1031

                                                                                                                                              Defense Evasion

                                                                                                                                              Modify Registry

                                                                                                                                              1
                                                                                                                                              T1112

                                                                                                                                              Replay Monitor

                                                                                                                                              Loading Replay Monitor...

                                                                                                                                              Downloads

                                                                                                                                              • C:\Windows\SysWOW64\ewayws.exe
                                                                                                                                                Filesize

                                                                                                                                                176KB

                                                                                                                                                MD5

                                                                                                                                                0cae2144249cca11917ce26657fc0281

                                                                                                                                                SHA1

                                                                                                                                                e7ffc36c62c26e987c6954e4739a306a95d119e1

                                                                                                                                                SHA256

                                                                                                                                                5fa749158a4dd5dd030bb97a5ca74a542ae4661b2a76ec69b29d41c3a32e8767

                                                                                                                                                SHA512

                                                                                                                                                50c5ea18407b74fc5d741d602c87a28c0bfebb348a8ff1710026951937b1e9077a353ee0b9bf2eb648b83a60e34a5e934d8b95c1b7e1202933aea875e6975027

                                                                                                                                              • C:\Windows\SysWOW64\ewayws.exe
                                                                                                                                                Filesize

                                                                                                                                                176KB

                                                                                                                                                MD5

                                                                                                                                                0cae2144249cca11917ce26657fc0281

                                                                                                                                                SHA1

                                                                                                                                                e7ffc36c62c26e987c6954e4739a306a95d119e1

                                                                                                                                                SHA256

                                                                                                                                                5fa749158a4dd5dd030bb97a5ca74a542ae4661b2a76ec69b29d41c3a32e8767

                                                                                                                                                SHA512

                                                                                                                                                50c5ea18407b74fc5d741d602c87a28c0bfebb348a8ff1710026951937b1e9077a353ee0b9bf2eb648b83a60e34a5e934d8b95c1b7e1202933aea875e6975027

                                                                                                                                              • memory/932-153-0x0000000000400000-0x0000000000431000-memory.dmp
                                                                                                                                                Filesize

                                                                                                                                                196KB

                                                                                                                                              • memory/932-152-0x0000000000400000-0x0000000000431000-memory.dmp
                                                                                                                                                Filesize

                                                                                                                                                196KB

                                                                                                                                              • memory/992-140-0x000000007FE40000-0x000000007FE4C000-memory.dmp
                                                                                                                                                Filesize

                                                                                                                                                48KB

                                                                                                                                              • memory/992-136-0x000000007FE40000-0x000000007FE4C000-memory.dmp
                                                                                                                                                Filesize

                                                                                                                                                48KB

                                                                                                                                              • memory/992-133-0x0000000000400000-0x0000000000431000-memory.dmp
                                                                                                                                                Filesize

                                                                                                                                                196KB

                                                                                                                                              • memory/992-141-0x000000007FE30000-0x000000007FE3C000-memory.dmp
                                                                                                                                                Filesize

                                                                                                                                                48KB

                                                                                                                                              • memory/992-142-0x000000007FE30000-0x000000007FE3C000-memory.dmp
                                                                                                                                                Filesize

                                                                                                                                                48KB

                                                                                                                                              • memory/992-143-0x000000007FE30000-0x000000007FE3C000-memory.dmp
                                                                                                                                                Filesize

                                                                                                                                                48KB

                                                                                                                                              • memory/992-145-0x000000007FE30000-0x000000007FE3C000-memory.dmp
                                                                                                                                                Filesize

                                                                                                                                                48KB

                                                                                                                                              • memory/992-151-0x0000000000400000-0x0000000000431000-memory.dmp
                                                                                                                                                Filesize

                                                                                                                                                196KB

                                                                                                                                              • memory/992-135-0x000000007FE40000-0x000000007FE4C000-memory.dmp
                                                                                                                                                Filesize

                                                                                                                                                48KB

                                                                                                                                              • memory/992-134-0x000000007FE40000-0x000000007FE4C000-memory.dmp
                                                                                                                                                Filesize

                                                                                                                                                48KB