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Analysis

  • max time kernel
    149s
  • max time network
    154s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20220901-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20220901-enlocale:en-usos:windows10-2004-x64system
  • submitted
    07/12/2022, 03:19

General

  • Target

    9a8fbfd40ea19beeb378f1be238e3ce8dd5675d83deabc5c249886d38b420626.exe

  • Size

    64KB

  • MD5

    1a0e8763b624334a5288ea2f59996f6d

  • SHA1

    1d5968388c4d6266301822f8a6152467f5149a54

  • SHA256

    9a8fbfd40ea19beeb378f1be238e3ce8dd5675d83deabc5c249886d38b420626

  • SHA512

    a8ed4acecf0bf9f8b019bdc4223496e8f2a29d349b01f41975d184081f4e7c674a5c5093da8268db865cffa845c9627bf8c673e8ef2dfc32fdbdd05423945552

  • SSDEEP

    1536:ubpM6l4seAkWP6f2xBQwaqLO+0ER1qf5f87e:taNe3QjQwaaO+f1A9s

Malware Config

Signatures

  • Modifies firewall policy service 2 TTPs 2 IoCs
  • UAC bypass 3 TTPs 2 IoCs
  • Executes dropped EXE 1 IoCs
  • Checks computer location settings 2 TTPs 1 IoCs

    Looks up country code configured in the registry, likely geofence.

  • Adds Run key to start application 2 TTPs 4 IoCs
  • Checks whether UAC is enabled 1 TTPs 4 IoCs
  • Drops file in Windows directory 2 IoCs
  • Enumerates physical storage devices 1 TTPs

    Attempts to interact with connected storage/optical drive(s). Likely ransomware behaviour.

  • Suspicious behavior: EnumeratesProcesses 2 IoCs
  • Suspicious use of AdjustPrivilegeToken 2 IoCs
  • Suspicious use of WriteProcessMemory 64 IoCs
  • System policy modification 1 TTPs 2 IoCs

Processes

  • C:\Windows\system32\lsass.exe
    C:\Windows\system32\lsass.exe
    1⤵
      PID:660
    • C:\Windows\system32\winlogon.exe
      winlogon.exe
      1⤵
        PID:604
        • C:\Windows\system32\fontdrvhost.exe
          "fontdrvhost.exe"
          2⤵
            PID:764
          • C:\Windows\system32\dwm.exe
            "dwm.exe"
            2⤵
              PID:1016
          • C:\Windows\system32\svchost.exe
            C:\Windows\system32\svchost.exe -k DcomLaunch -p -s LSM
            1⤵
              PID:940
            • C:\Windows\system32\svchost.exe
              C:\Windows\system32\svchost.exe -k RPCSS -p
              1⤵
                PID:880
              • C:\Windows\system32\svchost.exe
                C:\Windows\system32\svchost.exe -k DcomLaunch -p
                1⤵
                  PID:780
                  • C:\Windows\System32\RuntimeBroker.exe
                    C:\Windows\System32\RuntimeBroker.exe -Embedding
                    2⤵
                      PID:3576
                    • C:\Windows\SystemApps\Microsoft.Windows.StartMenuExperienceHost_cw5n1h2txyewy\StartMenuExperienceHost.exe
                      "C:\Windows\SystemApps\Microsoft.Windows.StartMenuExperienceHost_cw5n1h2txyewy\StartMenuExperienceHost.exe" -ServerName:App.AppXywbrabmsek0gm3tkwpr5kwzbs55tkqay.mca
                      2⤵
                        PID:3504
                      • C:\Windows\system32\DllHost.exe
                        C:\Windows\system32\DllHost.exe /Processid:{3EB3C877-1F16-487C-9050-104DBCD66683}
                        2⤵
                          PID:3408
                        • C:\Windows\system32\SppExtComObj.exe
                          C:\Windows\system32\SppExtComObj.exe -Embedding
                          2⤵
                            PID:3304
                          • C:\Windows\system32\wbem\wmiprvse.exe
                            C:\Windows\system32\wbem\wmiprvse.exe
                            2⤵
                              PID:3488
                            • C:\Windows\System32\RuntimeBroker.exe
                              C:\Windows\System32\RuntimeBroker.exe -Embedding
                              2⤵
                                PID:4832
                              • C:\Windows\system32\DllHost.exe
                                C:\Windows\system32\DllHost.exe /Processid:{3EB3C877-1F16-487C-9050-104DBCD66683}
                                2⤵
                                  PID:4420
                                • C:\Windows\System32\RuntimeBroker.exe
                                  C:\Windows\System32\RuntimeBroker.exe -Embedding
                                  2⤵
                                    PID:3820
                                  • C:\Windows\SystemApps\Microsoft.Windows.Search_cw5n1h2txyewy\SearchApp.exe
                                    "C:\Windows\SystemApps\Microsoft.Windows.Search_cw5n1h2txyewy\SearchApp.exe" -ServerName:CortanaUI.AppX8z9r6jm96hw4bsbneegw0kyxx296wr9t.mca
                                    2⤵
                                      PID:3660
                                  • C:\Windows\system32\fontdrvhost.exe
                                    "fontdrvhost.exe"
                                    1⤵
                                      PID:768
                                    • C:\Windows\system32\svchost.exe
                                      C:\Windows\system32\svchost.exe -k netsvcs -p -s gpsvc
                                      1⤵
                                        PID:428
                                      • C:\Windows\system32\svchost.exe
                                        C:\Windows\system32\svchost.exe -k LocalServiceNoNetwork -p
                                        1⤵
                                          PID:644
                                        • 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 LocalServiceNetworkRestricted -p -s EventLog
                                            1⤵
                                              PID:1204
                                            • C:\Windows\system32\svchost.exe
                                              C:\Windows\system32\svchost.exe -k netsvcs -p -s Schedule
                                              1⤵
                                                PID:1168
                                                • C:\Windows\system32\taskhostw.exe
                                                  taskhostw.exe {222A245B-E637-4AE9-A93F-A59CA119A75E}
                                                  2⤵
                                                    PID:2692
                                                • C:\Windows\system32\svchost.exe
                                                  C:\Windows\system32\svchost.exe -k LocalServiceNetworkRestricted -p -s TimeBrokerSvc
                                                  1⤵
                                                    PID:1036
                                                  • 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 LocalService -p -s DispBrokerDesktopSvc
                                                      1⤵
                                                        PID:1216
                                                      • C:\Windows\system32\svchost.exe
                                                        C:\Windows\system32\svchost.exe -k ClipboardSvcGroup -p -s cbdhsvc
                                                        1⤵
                                                          PID:3212
                                                        • C:\Windows\Explorer.EXE
                                                          C:\Windows\Explorer.EXE
                                                          1⤵
                                                            PID:3092
                                                            • C:\Users\Admin\AppData\Local\Temp\9a8fbfd40ea19beeb378f1be238e3ce8dd5675d83deabc5c249886d38b420626.exe
                                                              "C:\Users\Admin\AppData\Local\Temp\9a8fbfd40ea19beeb378f1be238e3ce8dd5675d83deabc5c249886d38b420626.exe"
                                                              2⤵
                                                              • Modifies firewall policy service
                                                              • UAC bypass
                                                              • Checks computer location settings
                                                              • Adds Run key to start application
                                                              • Checks whether UAC is enabled
                                                              • Drops file in Windows directory
                                                              • Suspicious use of AdjustPrivilegeToken
                                                              • Suspicious use of WriteProcessMemory
                                                              • System policy modification
                                                              PID:5060
                                                              • C:\Windows\essledv.exe
                                                                "C:\Windows\essledv.exe"
                                                                3⤵
                                                                • Modifies firewall policy service
                                                                • UAC bypass
                                                                • Executes dropped EXE
                                                                • Adds Run key to start application
                                                                • Checks whether UAC is enabled
                                                                • Suspicious behavior: EnumeratesProcesses
                                                                • Suspicious use of AdjustPrivilegeToken
                                                                • Suspicious use of WriteProcessMemory
                                                                • System policy modification
                                                                PID:3588
                                                              • C:\Windows\SysWOW64\cmd.exe
                                                                C:\Windows\system32\cmd.exe /c ""C:\Users\Admin\AppData\Local\Temp\abcdefg.bat" "C:\Users\Admin\AppData\Local\Temp\9a8fbfd40ea19beeb378f1be238e3ce8dd5675d83deabc5c249886d38b420626.exe""
                                                                3⤵
                                                                  PID:4936
                                                            • C:\Program Files\Common Files\Microsoft Shared\ClickToRun\OfficeClickToRun.exe
                                                              "C:\Program Files\Common Files\Microsoft Shared\ClickToRun\OfficeClickToRun.exe" /service
                                                              1⤵
                                                                PID:2700
                                                              • C:\Windows\system32\svchost.exe
                                                                C:\Windows\system32\svchost.exe -k netsvcs -p -s LanmanServer
                                                                1⤵
                                                                  PID:2684
                                                                • C:\Windows\system32\svchost.exe
                                                                  C:\Windows\system32\svchost.exe -k netsvcs -p -s Winmgmt
                                                                  1⤵
                                                                    PID:2676
                                                                  • C:\Windows\System32\svchost.exe
                                                                    C:\Windows\System32\svchost.exe -k LocalSystemNetworkRestricted -p -s TrkWks
                                                                    1⤵
                                                                      PID:2668
                                                                    • C:\Windows\system32\svchost.exe
                                                                      C:\Windows\system32\svchost.exe -k NetworkService -p -s CryptSvc
                                                                      1⤵
                                                                        PID:2656
                                                                      • C:\Windows\System32\svchost.exe
                                                                        C:\Windows\System32\svchost.exe -k WerSvcGroup
                                                                        1⤵
                                                                          PID:4676
                                                                        • C:\Windows\system32\svchost.exe
                                                                          C:\Windows\system32\svchost.exe -k netsvcs -p -s wlidsvc
                                                                          1⤵
                                                                            PID:716
                                                                          • C:\Windows\System32\svchost.exe
                                                                            C:\Windows\System32\svchost.exe -k netsvcs -p
                                                                            1⤵
                                                                              PID:4968
                                                                            • C:\Windows\system32\svchost.exe
                                                                              C:\Windows\system32\svchost.exe -k LocalService -s W32Time
                                                                              1⤵
                                                                                PID:2184
                                                                              • C:\Windows\System32\svchost.exe
                                                                                C:\Windows\System32\svchost.exe -k LocalService -p -s LicenseManager
                                                                                1⤵
                                                                                  PID:3628
                                                                                • C:\Windows\system32\svchost.exe
                                                                                  C:\Windows\system32\svchost.exe -k LocalServiceNetworkRestricted -p -s WinHttpAutoProxySvc
                                                                                  1⤵
                                                                                    PID:5112
                                                                                  • C:\Windows\system32\svchost.exe
                                                                                    C:\Windows\system32\svchost.exe -k LocalServiceAndNoImpersonation -p -s SSDPSRV
                                                                                    1⤵
                                                                                      PID:2420
                                                                                    • C:\Windows\System32\svchost.exe
                                                                                      C:\Windows\System32\svchost.exe -k LocalSystemNetworkRestricted -p -s StorSvc
                                                                                      1⤵
                                                                                        PID:1176
                                                                                      • C:\Windows\system32\svchost.exe
                                                                                        C:\Windows\system32\svchost.exe -k LocalService -p -s CDPSvc
                                                                                        1⤵
                                                                                          PID:4404
                                                                                        • C:\Windows\system32\svchost.exe
                                                                                          C:\Windows\system32\svchost.exe -k netsvcs -p -s WpnService
                                                                                          1⤵
                                                                                            PID:2640
                                                                                          • C:\Windows\system32\svchost.exe
                                                                                            C:\Windows\system32\svchost.exe -k UnistackSvcGroup -s CDPUserSvc
                                                                                            1⤵
                                                                                              PID:2516
                                                                                            • C:\Windows\system32\sihost.exe
                                                                                              sihost.exe
                                                                                              1⤵
                                                                                                PID:2452
                                                                                              • C:\Windows\system32\svchost.exe
                                                                                                C:\Windows\system32\svchost.exe -k netsvcs -p -s IKEEXT
                                                                                                1⤵
                                                                                                  PID:2408
                                                                                                • C:\Windows\system32\svchost.exe
                                                                                                  C:\Windows\system32\svchost.exe -k NetworkServiceNetworkRestricted -p -s PolicyAgent
                                                                                                  1⤵
                                                                                                    PID:2400
                                                                                                  • C:\Windows\System32\svchost.exe
                                                                                                    C:\Windows\System32\svchost.exe -k NetworkService -p -s LanmanWorkstation
                                                                                                    1⤵
                                                                                                      PID:2224
                                                                                                    • C:\Windows\System32\svchost.exe
                                                                                                      C:\Windows\System32\svchost.exe -k LocalServiceNetworkRestricted -s RmSvc
                                                                                                      1⤵
                                                                                                        PID:2200
                                                                                                      • C:\Windows\system32\svchost.exe
                                                                                                        C:\Windows\system32\svchost.exe -k LocalServiceNoNetworkFirewall -p
                                                                                                        1⤵
                                                                                                          PID:2112
                                                                                                        • C:\Windows\System32\spoolsv.exe
                                                                                                          C:\Windows\System32\spoolsv.exe
                                                                                                          1⤵
                                                                                                            PID:1816
                                                                                                          • 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:2012
                                                                                                              • C:\Windows\System32\svchost.exe
                                                                                                                C:\Windows\System32\svchost.exe -k LocalServiceNetworkRestricted -p
                                                                                                                1⤵
                                                                                                                  PID:1904
                                                                                                                • C:\Windows\system32\svchost.exe
                                                                                                                  C:\Windows\system32\svchost.exe -k NetworkService -p -s Dnscache
                                                                                                                  1⤵
                                                                                                                    PID:1896
                                                                                                                  • C:\Windows\System32\svchost.exe
                                                                                                                    C:\Windows\System32\svchost.exe -k LocalServiceNetworkRestricted -p
                                                                                                                    1⤵
                                                                                                                      PID:1828
                                                                                                                    • C:\Windows\System32\svchost.exe
                                                                                                                      C:\Windows\System32\svchost.exe -k LocalService -p -s netprofm
                                                                                                                      1⤵
                                                                                                                        PID:1768
                                                                                                                      • C:\Windows\system32\svchost.exe
                                                                                                                        C:\Windows\system32\svchost.exe -k LocalService -p -s FontCache
                                                                                                                        1⤵
                                                                                                                          PID:1692
                                                                                                                        • C:\Windows\System32\svchost.exe
                                                                                                                          C:\Windows\System32\svchost.exe -k LocalSystemNetworkRestricted -p -s AudioEndpointBuilder
                                                                                                                          1⤵
                                                                                                                            PID:1660
                                                                                                                          • C:\Windows\System32\svchost.exe
                                                                                                                            C:\Windows\System32\svchost.exe -k NetworkService -p -s NlaSvc
                                                                                                                            1⤵
                                                                                                                              PID:1624
                                                                                                                            • C:\Windows\system32\svchost.exe
                                                                                                                              C:\Windows\system32\svchost.exe -k netsvcs -p -s SENS
                                                                                                                              1⤵
                                                                                                                                PID:1592
                                                                                                                              • C:\Windows\system32\svchost.exe
                                                                                                                                C:\Windows\system32\svchost.exe -k netsvcs -p -s UserManager
                                                                                                                                1⤵
                                                                                                                                  PID:1464
                                                                                                                                • C:\Windows\System32\svchost.exe
                                                                                                                                  C:\Windows\System32\svchost.exe -k netsvcs -p -s Themes
                                                                                                                                  1⤵
                                                                                                                                    PID:1456
                                                                                                                                  • C:\Windows\system32\svchost.exe
                                                                                                                                    C:\Windows\system32\svchost.exe -k LocalService -p -s EventSystem
                                                                                                                                    1⤵
                                                                                                                                      PID:1436
                                                                                                                                    • C:\Windows\system32\svchost.exe
                                                                                                                                      C:\Windows\system32\svchost.exe -k LocalServiceNetworkRestricted -p -s Dhcp
                                                                                                                                      1⤵
                                                                                                                                        PID:1416
                                                                                                                                      • C:\Windows\system32\svchost.exe
                                                                                                                                        C:\Windows\system32\svchost.exe -k LocalService -p -s nsi
                                                                                                                                        1⤵
                                                                                                                                          PID:1324
                                                                                                                                        • C:\Windows\system32\svchost.exe
                                                                                                                                          C:\Windows\system32\svchost.exe -k netsvcs -p -s ProfSvc
                                                                                                                                          1⤵
                                                                                                                                            PID:1244
                                                                                                                                          • C:\Windows\system32\WerFault.exe
                                                                                                                                            "C:\Windows\system32\WerFault.exe" -k -lc NDIS NDIS-20221211-2017.dmp
                                                                                                                                            1⤵
                                                                                                                                              PID:4848

                                                                                                                                            Network

                                                                                                                                            MITRE ATT&CK Enterprise v6

                                                                                                                                            Replay Monitor

                                                                                                                                            Loading Replay Monitor...

                                                                                                                                            Downloads

                                                                                                                                            • C:\Users\Admin\AppData\Local\Temp\abcdefg.bat

                                                                                                                                              Filesize

                                                                                                                                              80B

                                                                                                                                              MD5

                                                                                                                                              3c2c2719c39678a7ef5013eb16b6f6ef

                                                                                                                                              SHA1

                                                                                                                                              323dfea7b524e2781dc2a4584a72a22981eee9a0

                                                                                                                                              SHA256

                                                                                                                                              9356b2010f4fca9a15ea990821154c5b8a87ffe472741ad089d08c746df218d5

                                                                                                                                              SHA512

                                                                                                                                              47174f9a28ab1309b31c71b11742c0d055a3319e485a44d62452a58fc4af67740d8342552862977b51e79da562f90d92d1b9c9dbbb14e7f2369cbe67133ba71c

                                                                                                                                            • C:\Windows\essledv.exe

                                                                                                                                              Filesize

                                                                                                                                              64KB

                                                                                                                                              MD5

                                                                                                                                              1a0e8763b624334a5288ea2f59996f6d

                                                                                                                                              SHA1

                                                                                                                                              1d5968388c4d6266301822f8a6152467f5149a54

                                                                                                                                              SHA256

                                                                                                                                              9a8fbfd40ea19beeb378f1be238e3ce8dd5675d83deabc5c249886d38b420626

                                                                                                                                              SHA512

                                                                                                                                              a8ed4acecf0bf9f8b019bdc4223496e8f2a29d349b01f41975d184081f4e7c674a5c5093da8268db865cffa845c9627bf8c673e8ef2dfc32fdbdd05423945552

                                                                                                                                            • C:\Windows\essledv.exe

                                                                                                                                              Filesize

                                                                                                                                              64KB

                                                                                                                                              MD5

                                                                                                                                              1a0e8763b624334a5288ea2f59996f6d

                                                                                                                                              SHA1

                                                                                                                                              1d5968388c4d6266301822f8a6152467f5149a54

                                                                                                                                              SHA256

                                                                                                                                              9a8fbfd40ea19beeb378f1be238e3ce8dd5675d83deabc5c249886d38b420626

                                                                                                                                              SHA512

                                                                                                                                              a8ed4acecf0bf9f8b019bdc4223496e8f2a29d349b01f41975d184081f4e7c674a5c5093da8268db865cffa845c9627bf8c673e8ef2dfc32fdbdd05423945552

                                                                                                                                            • memory/3588-142-0x0000000000400000-0x000000000042B000-memory.dmp

                                                                                                                                              Filesize

                                                                                                                                              172KB

                                                                                                                                            • memory/5060-132-0x0000000000400000-0x000000000042B000-memory.dmp

                                                                                                                                              Filesize

                                                                                                                                              172KB

                                                                                                                                            • memory/5060-133-0x00000000004B0000-0x00000000004BE000-memory.dmp

                                                                                                                                              Filesize

                                                                                                                                              56KB

                                                                                                                                            • memory/5060-134-0x0000000000400000-0x000000000042B000-memory.dmp

                                                                                                                                              Filesize

                                                                                                                                              172KB

                                                                                                                                            • memory/5060-140-0x0000000002F20000-0x0000000002F25000-memory.dmp

                                                                                                                                              Filesize

                                                                                                                                              20KB