Analysis

  • max time kernel
    158s
  • max time network
    189s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20221111-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20221111-enlocale:en-usos:windows10-2004-x64system
  • submitted
    03-12-2022 20:03

General

  • Target

    81a3eac5452fb3c51b86bd2375d0e806e4e9a2b9ed11fd33c3f15dc12cf32c9b.dll

  • Size

    66KB

  • MD5

    9665fc0bee2f17c2ac783a63231e9e71

  • SHA1

    069e651a0dab5c96dc8d3cdefc0b186fe24cbe73

  • SHA256

    81a3eac5452fb3c51b86bd2375d0e806e4e9a2b9ed11fd33c3f15dc12cf32c9b

  • SHA512

    85f31bb1ed2a7465bc643d487e95931faebbc73374dbaf3c5c136acddbc4efe61b9df230cdfe7b50f9a1f93de62fb9044383167fcc18c67ce916d6a881d24a35

  • SSDEEP

    768:hojY9PAJdMmJyj0Ml+oi/XSpSZbVfD0KoWyHaojY9PoufrNu/1IZoYgoah:0mIJdMmJyDl+tVZpoWyHjmgufyIZoYg

Score
10/10

Malware Config

Signatures

  • Modifies firewall policy service 2 TTPs 4 IoCs
  • Drops file in Drivers directory 1 IoCs
  • Executes dropped EXE 2 IoCs
  • Loads dropped DLL 1 IoCs
  • Drops file in System32 directory 3 IoCs
  • Suspicious behavior: EnumeratesProcesses 4 IoCs
  • Suspicious behavior: MapViewOfSection 64 IoCs
  • Suspicious use of AdjustPrivilegeToken 2 IoCs
  • Suspicious use of SetWindowsHookEx 4 IoCs
  • Suspicious use of WriteProcessMemory 64 IoCs

Processes

  • C:\Windows\system32\lsass.exe
    C:\Windows\system32\lsass.exe
    1⤵
      PID:672
    • C:\Windows\system32\winlogon.exe
      winlogon.exe
      1⤵
        PID:616
        • C:\Windows\system32\dwm.exe
          "dwm.exe"
          2⤵
            PID:332
          • C:\Windows\system32\fontdrvhost.exe
            "fontdrvhost.exe"
            2⤵
              PID:816
          • C:\Windows\system32\svchost.exe
            C:\Windows\system32\svchost.exe -k DcomLaunch -p
            1⤵
              PID:784
              • C:\Windows\System32\RuntimeBroker.exe
                C:\Windows\System32\RuntimeBroker.exe -Embedding
                2⤵
                  PID:3444
                • C:\Windows\system32\DllHost.exe
                  C:\Windows\system32\DllHost.exe /Processid:{3EB3C877-1F16-487C-9050-104DBCD66683}
                  2⤵
                    PID:3940
                  • C:\Windows\system32\SppExtComObj.exe
                    C:\Windows\system32\SppExtComObj.exe -Embedding
                    2⤵
                      PID:4020
                    • C:\Windows\system32\backgroundTaskHost.exe
                      "C:\Windows\system32\backgroundTaskHost.exe" -ServerName:CortanaUI.AppX3bn25b6f886wmg6twh46972vprk9tnbf.mca
                      2⤵
                        PID:4780
                      • C:\Windows\System32\RuntimeBroker.exe
                        C:\Windows\System32\RuntimeBroker.exe -Embedding
                        2⤵
                          PID:4144
                        • C:\Windows\system32\backgroundTaskHost.exe
                          "C:\Windows\system32\backgroundTaskHost.exe" -ServerName:App.AppXmtcan0h2tfbfy7k9kn8hbxb6dmzz1zh0.mca
                          2⤵
                            PID:4784
                          • C:\Windows\System32\RuntimeBroker.exe
                            C:\Windows\System32\RuntimeBroker.exe -Embedding
                            2⤵
                              PID:4548
                            • C:\Windows\System32\RuntimeBroker.exe
                              C:\Windows\System32\RuntimeBroker.exe -Embedding
                              2⤵
                                PID:3680
                              • C:\Windows\SystemApps\Microsoft.Windows.Search_cw5n1h2txyewy\SearchApp.exe
                                "C:\Windows\SystemApps\Microsoft.Windows.Search_cw5n1h2txyewy\SearchApp.exe" -ServerName:CortanaUI.AppX8z9r6jm96hw4bsbneegw0kyxx296wr9t.mca
                                2⤵
                                  PID:3536
                                • C:\Windows\SystemApps\Microsoft.Windows.StartMenuExperienceHost_cw5n1h2txyewy\StartMenuExperienceHost.exe
                                  "C:\Windows\SystemApps\Microsoft.Windows.StartMenuExperienceHost_cw5n1h2txyewy\StartMenuExperienceHost.exe" -ServerName:App.AppXywbrabmsek0gm3tkwpr5kwzbs55tkqay.mca
                                  2⤵
                                    PID:3380
                                  • C:\Windows\system32\DllHost.exe
                                    C:\Windows\system32\DllHost.exe /Processid:{3EB3C877-1F16-487C-9050-104DBCD66683}
                                    2⤵
                                      PID:3268
                                    • C:\Windows\system32\wbem\wmiprvse.exe
                                      C:\Windows\system32\wbem\wmiprvse.exe -secured -Embedding
                                      2⤵
                                        PID:228
                                    • C:\Windows\system32\svchost.exe
                                      C:\Windows\system32\svchost.exe -k DcomLaunch -p -s LSM
                                      1⤵
                                        PID:960
                                      • C:\Windows\system32\svchost.exe
                                        C:\Windows\system32\svchost.exe -k LocalServiceNoNetwork -p
                                        1⤵
                                          PID:1000
                                        • C:\Windows\system32\svchost.exe
                                          C:\Windows\system32\svchost.exe -k netsvcs -p -s ProfSvc
                                          1⤵
                                            PID:1176
                                          • C:\Windows\system32\svchost.exe
                                            C:\Windows\system32\svchost.exe -k LocalServiceNoNetworkFirewall -p
                                            1⤵
                                              PID:2072
                                            • C:\Windows\System32\svchost.exe
                                              C:\Windows\System32\svchost.exe -k NetworkService -p -s LanmanWorkstation
                                              1⤵
                                                PID:2148
                                              • C:\Windows\System32\spoolsv.exe
                                                C:\Windows\System32\spoolsv.exe
                                                1⤵
                                                  PID:1708
                                                • C:\Windows\System32\svchost.exe
                                                  C:\Windows\System32\svchost.exe -k netsvcs -p -s ShellHWDetection
                                                  1⤵
                                                    PID:2024
                                                  • C:\Windows\system32\svchost.exe
                                                    C:\Windows\system32\svchost.exe -k netsvcs -p -s Winmgmt
                                                    1⤵
                                                      PID:2500
                                                    • C:\Windows\system32\sihost.exe
                                                      sihost.exe
                                                      1⤵
                                                        PID:2664
                                                      • C:\Windows\system32\taskhostw.exe
                                                        taskhostw.exe {222A245B-E637-4AE9-A93F-A59CA119A75E}
                                                        1⤵
                                                          PID:2848
                                                        • C:\Windows\System32\svchost.exe
                                                          C:\Windows\System32\svchost.exe -k LocalSystemNetworkRestricted -p -s StorSvc
                                                          1⤵
                                                            PID:2220
                                                          • C:\Windows\System32\svchost.exe
                                                            C:\Windows\System32\svchost.exe -k LocalService -p -s LicenseManager
                                                            1⤵
                                                              PID:1512
                                                            • C:\Windows\System32\svchost.exe
                                                              C:\Windows\System32\svchost.exe -k netsvcs -p
                                                              1⤵
                                                                PID:3120
                                                              • C:\Windows\System32\svchost.exe
                                                                C:\Windows\System32\svchost.exe -k WerSvcGroup
                                                                1⤵
                                                                  PID:5116
                                                                • C:\Windows\system32\svchost.exe
                                                                  C:\Windows\system32\svchost.exe -k netsvcs -p -s wlidsvc
                                                                  1⤵
                                                                    PID:3128
                                                                  • C:\Windows\system32\svchost.exe
                                                                    C:\Windows\system32\svchost.exe -k LocalService -s W32Time
                                                                    1⤵
                                                                      PID:3548
                                                                    • C:\Windows\system32\svchost.exe
                                                                      C:\Windows\system32\svchost.exe -k LocalServiceNetworkRestricted -p -s WinHttpAutoProxySvc
                                                                      1⤵
                                                                        PID:3488
                                                                      • C:\Windows\system32\svchost.exe
                                                                        C:\Windows\system32\svchost.exe -k LocalService -p -s CDPSvc
                                                                        1⤵
                                                                          PID:4228
                                                                        • C:\Windows\system32\svchost.exe
                                                                          C:\Windows\system32\svchost.exe -k ClipboardSvcGroup -p -s cbdhsvc
                                                                          1⤵
                                                                            PID:740
                                                                          • C:\Windows\Explorer.EXE
                                                                            C:\Windows\Explorer.EXE
                                                                            1⤵
                                                                              PID:2584
                                                                              • C:\Windows\system32\rundll32.exe
                                                                                rundll32.exe C:\Users\Admin\AppData\Local\Temp\81a3eac5452fb3c51b86bd2375d0e806e4e9a2b9ed11fd33c3f15dc12cf32c9b.dll,#1
                                                                                2⤵
                                                                                • Suspicious use of WriteProcessMemory
                                                                                PID:4484
                                                                                • C:\Windows\SysWOW64\rundll32.exe
                                                                                  rundll32.exe C:\Users\Admin\AppData\Local\Temp\81a3eac5452fb3c51b86bd2375d0e806e4e9a2b9ed11fd33c3f15dc12cf32c9b.dll,#1
                                                                                  3⤵
                                                                                  • Suspicious use of WriteProcessMemory
                                                                                  PID:1852
                                                                                  • C:\Users\Admin\AppData\Local\Temp\hrl3DA5.tmp
                                                                                    C:\Users\Admin\AppData\Local\Temp\hrl3DA5.tmp
                                                                                    4⤵
                                                                                    • Modifies firewall policy service
                                                                                    • Drops file in Drivers directory
                                                                                    • Executes dropped EXE
                                                                                    • Drops file in System32 directory
                                                                                    • Suspicious behavior: EnumeratesProcesses
                                                                                    • Suspicious behavior: MapViewOfSection
                                                                                    • Suspicious use of AdjustPrivilegeToken
                                                                                    • Suspicious use of SetWindowsHookEx
                                                                                    • Suspicious use of WriteProcessMemory
                                                                                    PID:2648
                                                                            • C:\Windows\system32\svchost.exe
                                                                              C:\Windows\system32\svchost.exe -k UnistackSvcGroup -s CDPUserSvc
                                                                              1⤵
                                                                                PID:2784
                                                                              • C:\Windows\system32\svchost.exe
                                                                                C:\Windows\system32\svchost.exe -k netsvcs -p -s LanmanServer
                                                                                1⤵
                                                                                  PID:2536
                                                                                • C:\Windows\system32\svchost.exe
                                                                                  C:\Windows\system32\svchost.exe -k netsvcs -p -s WpnService
                                                                                  1⤵
                                                                                    PID:2520
                                                                                  • C:\Windows\System32\svchost.exe
                                                                                    C:\Windows\System32\svchost.exe -k LocalSystemNetworkRestricted -p -s TrkWks
                                                                                    1⤵
                                                                                      PID:2460
                                                                                    • C:\Program Files\Common Files\Microsoft Shared\ClickToRun\OfficeClickToRun.exe
                                                                                      "C:\Program Files\Common Files\Microsoft Shared\ClickToRun\OfficeClickToRun.exe" /service
                                                                                      1⤵
                                                                                        PID:2424
                                                                                      • C:\Windows\system32\svchost.exe
                                                                                        C:\Windows\system32\svchost.exe -k NetworkService -p -s CryptSvc
                                                                                        1⤵
                                                                                          PID:2412
                                                                                        • C:\Windows\system32\svchost.exe
                                                                                          C:\Windows\system32\svchost.exe -k NetworkServiceNetworkRestricted -p -s PolicyAgent
                                                                                          1⤵
                                                                                            PID:2328
                                                                                          • C:\Windows\system32\svchost.exe
                                                                                            C:\Windows\system32\svchost.exe -k netsvcs -p -s IKEEXT
                                                                                            1⤵
                                                                                              PID:2320
                                                                                            • C:\Windows\System32\svchost.exe
                                                                                              C:\Windows\System32\svchost.exe -k LocalServiceNetworkRestricted -s RmSvc
                                                                                              1⤵
                                                                                                PID:2188
                                                                                              • C:\Windows\system32\svchost.exe
                                                                                                C:\Windows\system32\svchost.exe -k NetworkService -p -s Dnscache
                                                                                                1⤵
                                                                                                  PID:1944
                                                                                                • C:\Windows\System32\svchost.exe
                                                                                                  C:\Windows\System32\svchost.exe -k LocalServiceNetworkRestricted -p
                                                                                                  1⤵
                                                                                                    PID:1936
                                                                                                  • C:\Windows\system32\svchost.exe
                                                                                                    C:\Windows\system32\svchost.exe -k appmodel -p -s StateRepository
                                                                                                    1⤵
                                                                                                      PID:1892
                                                                                                    • C:\Windows\System32\svchost.exe
                                                                                                      C:\Windows\System32\svchost.exe -k LocalService -p -s netprofm
                                                                                                      1⤵
                                                                                                        PID:1792
                                                                                                      • C:\Windows\System32\svchost.exe
                                                                                                        C:\Windows\System32\svchost.exe -k LocalServiceNetworkRestricted -p
                                                                                                        1⤵
                                                                                                          PID:1752
                                                                                                        • C:\Windows\System32\svchost.exe
                                                                                                          C:\Windows\System32\svchost.exe -k NetworkService -p -s NlaSvc
                                                                                                          1⤵
                                                                                                            PID:1676
                                                                                                          • C:\Windows\system32\svchost.exe
                                                                                                            C:\Windows\system32\svchost.exe -k LocalService -p -s FontCache
                                                                                                            1⤵
                                                                                                              PID:1612
                                                                                                            • C:\Windows\System32\svchost.exe
                                                                                                              C:\Windows\System32\svchost.exe -k LocalSystemNetworkRestricted -p -s AudioEndpointBuilder
                                                                                                              1⤵
                                                                                                                PID:1596
                                                                                                              • C:\Windows\system32\svchost.exe
                                                                                                                C:\Windows\system32\svchost.exe -k netsvcs -p -s SENS
                                                                                                                1⤵
                                                                                                                  PID:1552
                                                                                                                • C:\Windows\system32\svchost.exe
                                                                                                                  C:\Windows\system32\svchost.exe -k LocalServiceNetworkRestricted -p -s Dhcp
                                                                                                                  1⤵
                                                                                                                    PID:1536
                                                                                                                  • C:\Windows\System32\svchost.exe
                                                                                                                    C:\Windows\System32\svchost.exe -k netsvcs -p -s Themes
                                                                                                                    1⤵
                                                                                                                      PID:1412
                                                                                                                    • C:\Windows\system32\svchost.exe
                                                                                                                      C:\Windows\system32\svchost.exe -k LocalService -p -s nsi
                                                                                                                      1⤵
                                                                                                                        PID:1404
                                                                                                                      • C:\Windows\system32\svchost.exe
                                                                                                                        C:\Windows\system32\svchost.exe -k LocalService -p -s EventSystem
                                                                                                                        1⤵
                                                                                                                          PID:1380
                                                                                                                        • C:\Windows\system32\svchost.exe
                                                                                                                          C:\Windows\system32\svchost.exe -k netsvcs -p -s UserManager
                                                                                                                          1⤵
                                                                                                                            PID:1336
                                                                                                                          • C:\Windows\System32\svchost.exe
                                                                                                                            C:\Windows\System32\svchost.exe -k LocalServiceNetworkRestricted -p -s EventLog
                                                                                                                            1⤵
                                                                                                                              PID:1228
                                                                                                                            • C:\Windows\system32\svchost.exe
                                                                                                                              C:\Windows\system32\svchost.exe -k LocalService -p -s DispBrokerDesktopSvc
                                                                                                                              1⤵
                                                                                                                                PID:1216
                                                                                                                              • C:\Windows\system32\svchost.exe
                                                                                                                                C:\Windows\system32\svchost.exe -k netsvcs -p -s Schedule
                                                                                                                                1⤵
                                                                                                                                  PID:1132
                                                                                                                                • C:\Windows\system32\svchost.exe
                                                                                                                                  C:\Windows\system32\svchost.exe -k LocalServiceNetworkRestricted -p -s TimeBrokerSvc
                                                                                                                                  1⤵
                                                                                                                                    PID:1064
                                                                                                                                  • C:\Windows\System32\svchost.exe
                                                                                                                                    C:\Windows\System32\svchost.exe -k LocalSystemNetworkRestricted -p -s NcbService
                                                                                                                                    1⤵
                                                                                                                                      PID:1028
                                                                                                                                    • C:\Windows\System32\svchost.exe
                                                                                                                                      C:\Windows\System32\svchost.exe -k LocalServiceNetworkRestricted -p -s lmhosts
                                                                                                                                      1⤵
                                                                                                                                        PID:752
                                                                                                                                      • C:\Windows\system32\svchost.exe
                                                                                                                                        C:\Windows\system32\svchost.exe -k netsvcs -p -s gpsvc
                                                                                                                                        1⤵
                                                                                                                                          PID:516
                                                                                                                                        • C:\Windows\system32\svchost.exe
                                                                                                                                          C:\Windows\system32\svchost.exe -k RPCSS -p
                                                                                                                                          1⤵
                                                                                                                                            PID:908
                                                                                                                                          • C:\Windows\system32\fontdrvhost.exe
                                                                                                                                            "fontdrvhost.exe"
                                                                                                                                            1⤵
                                                                                                                                              PID:812
                                                                                                                                            • C:\Windows\SysWOW64\cyvgha.exe
                                                                                                                                              C:\Windows\SysWOW64\cyvgha.exe
                                                                                                                                              1⤵
                                                                                                                                              • Executes dropped EXE
                                                                                                                                              • Loads dropped DLL
                                                                                                                                              • Drops file in System32 directory
                                                                                                                                              • Suspicious behavior: EnumeratesProcesses
                                                                                                                                              • Suspicious use of AdjustPrivilegeToken
                                                                                                                                              • Suspicious use of SetWindowsHookEx
                                                                                                                                              PID:700

                                                                                                                                            Network

                                                                                                                                            MITRE ATT&CK Enterprise v6

                                                                                                                                            Replay Monitor

                                                                                                                                            Loading Replay Monitor...

                                                                                                                                            Downloads

                                                                                                                                            • C:\Users\Admin\AppData\Local\Temp\hrl3DA5.tmp

                                                                                                                                              Filesize

                                                                                                                                              58KB

                                                                                                                                              MD5

                                                                                                                                              f38f95243e1761511897c89d8c6dd3ad

                                                                                                                                              SHA1

                                                                                                                                              b2ecf1a101c65c070b79a5ee307da34d937a2bfc

                                                                                                                                              SHA256

                                                                                                                                              172164eec732a70210edc7c07849fcc193e0849c70e4a9a46a9e66b6579094aa

                                                                                                                                              SHA512

                                                                                                                                              9a30bce99c7e00b14abf7e2d9aadb1797e65e0c9a9f42dc58d3aae2481b81c70c50aea67c1a46e0494f660327c4c95172c9e18af79d68b8211b9e23d14ca77bf

                                                                                                                                            • C:\Users\Admin\AppData\Local\Temp\hrl3DA5.tmp

                                                                                                                                              Filesize

                                                                                                                                              58KB

                                                                                                                                              MD5

                                                                                                                                              f38f95243e1761511897c89d8c6dd3ad

                                                                                                                                              SHA1

                                                                                                                                              b2ecf1a101c65c070b79a5ee307da34d937a2bfc

                                                                                                                                              SHA256

                                                                                                                                              172164eec732a70210edc7c07849fcc193e0849c70e4a9a46a9e66b6579094aa

                                                                                                                                              SHA512

                                                                                                                                              9a30bce99c7e00b14abf7e2d9aadb1797e65e0c9a9f42dc58d3aae2481b81c70c50aea67c1a46e0494f660327c4c95172c9e18af79d68b8211b9e23d14ca77bf

                                                                                                                                            • C:\Windows\SysWOW64\cyvgha.exe

                                                                                                                                              Filesize

                                                                                                                                              58KB

                                                                                                                                              MD5

                                                                                                                                              f38f95243e1761511897c89d8c6dd3ad

                                                                                                                                              SHA1

                                                                                                                                              b2ecf1a101c65c070b79a5ee307da34d937a2bfc

                                                                                                                                              SHA256

                                                                                                                                              172164eec732a70210edc7c07849fcc193e0849c70e4a9a46a9e66b6579094aa

                                                                                                                                              SHA512

                                                                                                                                              9a30bce99c7e00b14abf7e2d9aadb1797e65e0c9a9f42dc58d3aae2481b81c70c50aea67c1a46e0494f660327c4c95172c9e18af79d68b8211b9e23d14ca77bf

                                                                                                                                            • C:\Windows\SysWOW64\cyvgha.exe

                                                                                                                                              Filesize

                                                                                                                                              58KB

                                                                                                                                              MD5

                                                                                                                                              f38f95243e1761511897c89d8c6dd3ad

                                                                                                                                              SHA1

                                                                                                                                              b2ecf1a101c65c070b79a5ee307da34d937a2bfc

                                                                                                                                              SHA256

                                                                                                                                              172164eec732a70210edc7c07849fcc193e0849c70e4a9a46a9e66b6579094aa

                                                                                                                                              SHA512

                                                                                                                                              9a30bce99c7e00b14abf7e2d9aadb1797e65e0c9a9f42dc58d3aae2481b81c70c50aea67c1a46e0494f660327c4c95172c9e18af79d68b8211b9e23d14ca77bf

                                                                                                                                            • C:\Windows\SysWOW64\hra33.dll

                                                                                                                                              Filesize

                                                                                                                                              66KB

                                                                                                                                              MD5

                                                                                                                                              9665fc0bee2f17c2ac783a63231e9e71

                                                                                                                                              SHA1

                                                                                                                                              069e651a0dab5c96dc8d3cdefc0b186fe24cbe73

                                                                                                                                              SHA256

                                                                                                                                              81a3eac5452fb3c51b86bd2375d0e806e4e9a2b9ed11fd33c3f15dc12cf32c9b

                                                                                                                                              SHA512

                                                                                                                                              85f31bb1ed2a7465bc643d487e95931faebbc73374dbaf3c5c136acddbc4efe61b9df230cdfe7b50f9a1f93de62fb9044383167fcc18c67ce916d6a881d24a35

                                                                                                                                            • memory/700-141-0x0000000000400000-0x0000000000412000-memory.dmp

                                                                                                                                              Filesize

                                                                                                                                              72KB

                                                                                                                                            • memory/700-143-0x0000000000400000-0x0000000000412000-memory.dmp

                                                                                                                                              Filesize

                                                                                                                                              72KB

                                                                                                                                            • memory/2648-136-0x0000000000400000-0x0000000000412000-memory.dmp

                                                                                                                                              Filesize

                                                                                                                                              72KB

                                                                                                                                            • memory/2648-139-0x0000000000400000-0x0000000000412000-memory.dmp

                                                                                                                                              Filesize

                                                                                                                                              72KB

                                                                                                                                            • memory/2648-140-0x000000007FE30000-0x000000007FE3A000-memory.dmp

                                                                                                                                              Filesize

                                                                                                                                              40KB