Analysis

  • max time kernel
    91s
  • max time network
    112s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20220414-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20220414-enlocale:en-usos:windows10-2004-x64system
  • submitted
    18-07-2022 14:53

General

  • Target

    5180621dabfbf51a1764886b08bf8b954f27e326ed6167fbdbd8a6f6313c534f.dll

  • Size

    5.0MB

  • MD5

    38c817799dc0b801b8051000baac445a

  • SHA1

    6b7b2c1659ae194b6f7a5d94e40e94cacdc1bccc

  • SHA256

    5180621dabfbf51a1764886b08bf8b954f27e326ed6167fbdbd8a6f6313c534f

  • SHA512

    281797346098fb0b15265e28b4fa6bd98304611878ef7b902fa0170fec8c4437f43d8d285578538e09b41973f90c522c801bb91e2b41401e68a96839d3495006

Malware Config

Extracted

Family

metasploit

Version

encoder/call4_dword_xor

Signatures

  • MetaSploit

    Detected malicious payload which is part of the Metasploit Framework, likely generated with msfvenom or similar.

  • Modifies firewall policy service 2 TTPs 4 IoCs
  • suricata: ET MALWARE Known Hostile Domain ilo.brenz .pl Lookup

    suricata: ET MALWARE Known Hostile Domain ilo.brenz .pl Lookup

  • suricata: ET MALWARE Known Sinkhole Response Header

    suricata: ET MALWARE Known Sinkhole Response Header

  • suricata: ET MALWARE Possible WannaCry DNS Lookup 2

    suricata: ET MALWARE Possible WannaCry DNS Lookup 2

  • Executes dropped EXE 1 IoCs
  • Drops file in Windows directory 1 IoCs
  • Suspicious behavior: EnumeratesProcesses 2 IoCs
  • Suspicious behavior: MapViewOfSection 64 IoCs
  • Suspicious use of AdjustPrivilegeToken 1 IoCs
  • Suspicious use of WriteProcessMemory 64 IoCs

Processes

  • C:\Windows\system32\lsass.exe
    C:\Windows\system32\lsass.exe
    1⤵
      PID:668
    • C:\Windows\system32\winlogon.exe
      winlogon.exe
      1⤵
        PID:588
        • C:\Windows\system32\fontdrvhost.exe
          "fontdrvhost.exe"
          2⤵
            PID:800
          • C:\Windows\system32\dwm.exe
            "dwm.exe"
            2⤵
              PID:1020
          • C:\Windows\system32\fontdrvhost.exe
            "fontdrvhost.exe"
            1⤵
              PID:792
            • C:\Windows\system32\svchost.exe
              C:\Windows\system32\svchost.exe -k RPCSS -p
              1⤵
                PID:912
              • 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 LocalServiceNoNetwork -p
                  1⤵
                    PID:872
                  • C:\Windows\System32\svchost.exe
                    C:\Windows\System32\svchost.exe -k LocalServiceNetworkRestricted -p -s lmhosts
                    1⤵
                      PID:876
                    • C:\Windows\system32\svchost.exe
                      C:\Windows\system32\svchost.exe -k netsvcs -p -s ProfSvc
                      1⤵
                        PID:1164
                      • C:\Windows\System32\RuntimeBroker.exe
                        C:\Windows\System32\RuntimeBroker.exe -Embedding
                        1⤵
                          PID:3428
                        • C:\Windows\SystemApps\Microsoft.Windows.StartMenuExperienceHost_cw5n1h2txyewy\StartMenuExperienceHost.exe
                          "C:\Windows\SystemApps\Microsoft.Windows.StartMenuExperienceHost_cw5n1h2txyewy\StartMenuExperienceHost.exe" -ServerName:App.AppXywbrabmsek0gm3tkwpr5kwzbs55tkqay.mca
                          1⤵
                            PID:3364
                          • C:\Windows\system32\DllHost.exe
                            C:\Windows\system32\DllHost.exe /Processid:{3EB3C877-1F16-487C-9050-104DBCD66683}
                            1⤵
                              PID:3272
                            • C:\Windows\system32\svchost.exe
                              C:\Windows\system32\svchost.exe -k ClipboardSvcGroup -p -s cbdhsvc
                              1⤵
                                PID:8
                              • C:\Windows\Explorer.EXE
                                C:\Windows\Explorer.EXE
                                1⤵
                                  PID:1032
                                  • C:\Windows\system32\rundll32.exe
                                    rundll32.exe C:\Users\Admin\AppData\Local\Temp\5180621dabfbf51a1764886b08bf8b954f27e326ed6167fbdbd8a6f6313c534f.dll,#1
                                    2⤵
                                    • Suspicious use of WriteProcessMemory
                                    PID:968
                                    • C:\Windows\SysWOW64\rundll32.exe
                                      rundll32.exe C:\Users\Admin\AppData\Local\Temp\5180621dabfbf51a1764886b08bf8b954f27e326ed6167fbdbd8a6f6313c534f.dll,#1
                                      3⤵
                                      • Drops file in Windows directory
                                      • Suspicious use of WriteProcessMemory
                                      PID:4880
                                      • C:\WINDOWS\mssecsvc.exe
                                        C:\WINDOWS\mssecsvc.exe
                                        4⤵
                                        • Modifies firewall policy service
                                        • Executes dropped EXE
                                        • Suspicious behavior: EnumeratesProcesses
                                        • Suspicious behavior: MapViewOfSection
                                        • Suspicious use of AdjustPrivilegeToken
                                        • Suspicious use of WriteProcessMemory
                                        PID:5108
                                • C:\Windows\SystemApps\Microsoft.Windows.Search_cw5n1h2txyewy\SearchApp.exe
                                  "C:\Windows\SystemApps\Microsoft.Windows.Search_cw5n1h2txyewy\SearchApp.exe" -ServerName:CortanaUI.AppX8z9r6jm96hw4bsbneegw0kyxx296wr9t.mca
                                  1⤵
                                    PID:3512
                                  • C:\Windows\system32\svchost.exe
                                    C:\Windows\system32\svchost.exe -k LocalService -s W32Time
                                    1⤵
                                      PID:1440
                                    • C:\Windows\System32\svchost.exe
                                      C:\Windows\System32\svchost.exe -k WerSvcGroup
                                      1⤵
                                        PID:776
                                      • C:\Windows\System32\svchost.exe
                                        C:\Windows\System32\svchost.exe -k netsvcs -p
                                        1⤵
                                          PID:4824
                                        • C:\Windows\system32\backgroundTaskHost.exe
                                          "C:\Windows\system32\backgroundTaskHost.exe" -ServerName:App.AppX53ypgrj20bgndg05hj3tc7z654myszwp.mca
                                          1⤵
                                            PID:2516
                                          • C:\Windows\System32\svchost.exe
                                            C:\Windows\System32\svchost.exe -k LocalService -p -s LicenseManager
                                            1⤵
                                              PID:3704
                                            • C:\Windows\system32\SppExtComObj.exe
                                              C:\Windows\system32\SppExtComObj.exe -Embedding
                                              1⤵
                                                PID:3484
                                              • C:\Windows\system32\wbem\wmiprvse.exe
                                                C:\Windows\system32\wbem\wmiprvse.exe
                                                1⤵
                                                  PID:1004
                                                • C:\Windows\system32\svchost.exe
                                                  C:\Windows\system32\svchost.exe -k LocalServiceNetworkRestricted -p -s WinHttpAutoProxySvc
                                                  1⤵
                                                    PID:552
                                                  • C:\Windows\system32\svchost.exe
                                                    C:\Windows\system32\svchost.exe -k LocalService -p -s CDPSvc
                                                    1⤵
                                                      PID:3920
                                                    • C:\Windows\System32\svchost.exe
                                                      C:\Windows\System32\svchost.exe -k LocalSystemNetworkRestricted -p -s StorSvc
                                                      1⤵
                                                        PID:5044
                                                      • C:\Windows\system32\svchost.exe
                                                        C:\Windows\system32\svchost.exe -k netsvcs -p -s wlidsvc
                                                        1⤵
                                                          PID:4916
                                                        • C:\Windows\System32\RuntimeBroker.exe
                                                          C:\Windows\System32\RuntimeBroker.exe -Embedding
                                                          1⤵
                                                            PID:4212
                                                          • C:\Windows\system32\DllHost.exe
                                                            C:\Windows\system32\DllHost.exe /Processid:{3EB3C877-1F16-487C-9050-104DBCD66683}
                                                            1⤵
                                                              PID:3932
                                                            • C:\Windows\System32\RuntimeBroker.exe
                                                              C:\Windows\System32\RuntimeBroker.exe -Embedding
                                                              1⤵
                                                                PID:3808
                                                              • C:\Windows\system32\taskhostw.exe
                                                                taskhostw.exe {222A245B-E637-4AE9-A93F-A59CA119A75E}
                                                                1⤵
                                                                  PID:2864
                                                                • C:\Windows\system32\svchost.exe
                                                                  C:\Windows\system32\svchost.exe -k UnistackSvcGroup -s CDPUserSvc
                                                                  1⤵
                                                                    PID:2720
                                                                  • C:\Windows\system32\sihost.exe
                                                                    sihost.exe
                                                                    1⤵
                                                                      PID:2664
                                                                    • C:\Windows\system32\svchost.exe
                                                                      C:\Windows\system32\svchost.exe -k netsvcs -p -s WpnService
                                                                      1⤵
                                                                        PID:2588
                                                                      • C:\Windows\system32\svchost.exe
                                                                        C:\Windows\system32\svchost.exe -k netsvcs -p -s Winmgmt
                                                                        1⤵
                                                                          PID:2568
                                                                        • C:\Windows\System32\svchost.exe
                                                                          C:\Windows\System32\svchost.exe -k LocalSystemNetworkRestricted -p -s TrkWks
                                                                          1⤵
                                                                            PID:2552
                                                                          • C:\Windows\system32\svchost.exe
                                                                            C:\Windows\system32\svchost.exe -k netsvcs -p -s LanmanServer
                                                                            1⤵
                                                                              PID:2536
                                                                            • C:\Program Files\Common Files\Microsoft Shared\ClickToRun\OfficeClickToRun.exe
                                                                              "C:\Program Files\Common Files\Microsoft Shared\ClickToRun\OfficeClickToRun.exe" /service
                                                                              1⤵
                                                                                PID:2480
                                                                              • C:\Windows\system32\svchost.exe
                                                                                C:\Windows\system32\svchost.exe -k NetworkService -p -s CryptSvc
                                                                                1⤵
                                                                                  PID:2472
                                                                                • C:\Windows\system32\svchost.exe
                                                                                  C:\Windows\system32\svchost.exe -k NetworkServiceNetworkRestricted -p -s PolicyAgent
                                                                                  1⤵
                                                                                    PID:2332
                                                                                  • C:\Windows\system32\svchost.exe
                                                                                    C:\Windows\system32\svchost.exe -k netsvcs -p -s IKEEXT
                                                                                    1⤵
                                                                                      PID:2324
                                                                                    • C:\Windows\System32\svchost.exe
                                                                                      C:\Windows\System32\svchost.exe -k LocalServiceNetworkRestricted -s RmSvc
                                                                                      1⤵
                                                                                        PID:2108
                                                                                      • C:\Windows\System32\svchost.exe
                                                                                        C:\Windows\System32\svchost.exe -k NetworkService -p -s LanmanWorkstation
                                                                                        1⤵
                                                                                          PID:2088
                                                                                        • C:\Windows\system32\svchost.exe
                                                                                          C:\Windows\system32\svchost.exe -k LocalServiceNoNetworkFirewall -p
                                                                                          1⤵
                                                                                            PID:372
                                                                                          • C:\Windows\System32\spoolsv.exe
                                                                                            C:\Windows\System32\spoolsv.exe
                                                                                            1⤵
                                                                                              PID:1548
                                                                                            • C:\Windows\System32\svchost.exe
                                                                                              C:\Windows\System32\svchost.exe -k netsvcs -p -s ShellHWDetection
                                                                                              1⤵
                                                                                                PID:2000
                                                                                              • C:\Windows\system32\svchost.exe
                                                                                                C:\Windows\system32\svchost.exe -k appmodel -p -s StateRepository
                                                                                                1⤵
                                                                                                  PID:1952
                                                                                                • C:\Windows\System32\svchost.exe
                                                                                                  C:\Windows\System32\svchost.exe -k LocalServiceNetworkRestricted -p
                                                                                                  1⤵
                                                                                                    PID:1900
                                                                                                  • C:\Windows\system32\svchost.exe
                                                                                                    C:\Windows\system32\svchost.exe -k NetworkService -p -s Dnscache
                                                                                                    1⤵
                                                                                                      PID:1888
                                                                                                    • C:\Windows\System32\svchost.exe
                                                                                                      C:\Windows\System32\svchost.exe -k LocalService -p -s netprofm
                                                                                                      1⤵
                                                                                                        PID:1844
                                                                                                      • C:\Windows\System32\svchost.exe
                                                                                                        C:\Windows\System32\svchost.exe -k LocalServiceNetworkRestricted -p
                                                                                                        1⤵
                                                                                                          PID:1776
                                                                                                        • C:\Windows\System32\svchost.exe
                                                                                                          C:\Windows\System32\svchost.exe -k NetworkService -p -s NlaSvc
                                                                                                          1⤵
                                                                                                            PID:1700
                                                                                                          • C:\Windows\system32\svchost.exe
                                                                                                            C:\Windows\system32\svchost.exe -k LocalService -p -s FontCache
                                                                                                            1⤵
                                                                                                              PID:1648
                                                                                                            • C:\Windows\System32\svchost.exe
                                                                                                              C:\Windows\System32\svchost.exe -k LocalSystemNetworkRestricted -p -s AudioEndpointBuilder
                                                                                                              1⤵
                                                                                                                PID:1640
                                                                                                              • C:\Windows\system32\svchost.exe
                                                                                                                C:\Windows\system32\svchost.exe -k netsvcs -p -s SENS
                                                                                                                1⤵
                                                                                                                  PID:1576
                                                                                                                • C:\Windows\system32\svchost.exe
                                                                                                                  C:\Windows\system32\svchost.exe -k LocalServiceNetworkRestricted -p -s Dhcp
                                                                                                                  1⤵
                                                                                                                    PID:1552
                                                                                                                  • C:\Windows\system32\svchost.exe
                                                                                                                    C:\Windows\system32\svchost.exe -k LocalService -p -s nsi
                                                                                                                    1⤵
                                                                                                                      PID:1476
                                                                                                                    • C:\Windows\System32\svchost.exe
                                                                                                                      C:\Windows\System32\svchost.exe -k netsvcs -p -s Themes
                                                                                                                      1⤵
                                                                                                                        PID:1432
                                                                                                                      • C:\Windows\system32\svchost.exe
                                                                                                                        C:\Windows\system32\svchost.exe -k LocalService -p -s EventSystem
                                                                                                                        1⤵
                                                                                                                          PID:1424
                                                                                                                        • C:\Windows\System32\svchost.exe
                                                                                                                          C:\Windows\System32\svchost.exe -k LocalServiceNetworkRestricted -p -s EventLog
                                                                                                                          1⤵
                                                                                                                            PID:1324
                                                                                                                          • C:\Windows\system32\svchost.exe
                                                                                                                            C:\Windows\system32\svchost.exe -k netsvcs -p -s UserManager
                                                                                                                            1⤵
                                                                                                                              PID:1288
                                                                                                                            • C:\Windows\system32\svchost.exe
                                                                                                                              C:\Windows\system32\svchost.exe -k LocalService -p -s DispBrokerDesktopSvc
                                                                                                                              1⤵
                                                                                                                                PID:1228
                                                                                                                              • C:\Windows\system32\svchost.exe
                                                                                                                                C:\Windows\system32\svchost.exe -k netsvcs -p -s Schedule
                                                                                                                                1⤵
                                                                                                                                  PID:1116
                                                                                                                                • C:\Windows\system32\svchost.exe
                                                                                                                                  C:\Windows\system32\svchost.exe -k LocalServiceNetworkRestricted -p -s TimeBrokerSvc
                                                                                                                                  1⤵
                                                                                                                                    PID:1048
                                                                                                                                  • C:\Windows\System32\svchost.exe
                                                                                                                                    C:\Windows\System32\svchost.exe -k LocalSystemNetworkRestricted -p -s NcbService
                                                                                                                                    1⤵
                                                                                                                                      PID:1040
                                                                                                                                    • 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 DcomLaunch -p
                                                                                                                                        1⤵
                                                                                                                                          PID:808

                                                                                                                                        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\mssecsvc.exe
                                                                                                                                          Filesize

                                                                                                                                          3.8MB

                                                                                                                                          MD5

                                                                                                                                          b544af75785b0448fb13b674c7a51d92

                                                                                                                                          SHA1

                                                                                                                                          7b88ce7386c7027d00e61ff512886cc11118ab7d

                                                                                                                                          SHA256

                                                                                                                                          57288b609475cb3f1521725178e405024844a1710f9aecef14d815b77bb86d0f

                                                                                                                                          SHA512

                                                                                                                                          e11a6b44b21ad7360655f074a02abffb406bdd2f55c11b9bfbf57b29ec8a6281ea640cd84963d7abe8a1a0310eebc349d804cee241014ad055ea7fa617236b21

                                                                                                                                        • C:\Windows\mssecsvc.exe
                                                                                                                                          Filesize

                                                                                                                                          3.8MB

                                                                                                                                          MD5

                                                                                                                                          b544af75785b0448fb13b674c7a51d92

                                                                                                                                          SHA1

                                                                                                                                          7b88ce7386c7027d00e61ff512886cc11118ab7d

                                                                                                                                          SHA256

                                                                                                                                          57288b609475cb3f1521725178e405024844a1710f9aecef14d815b77bb86d0f

                                                                                                                                          SHA512

                                                                                                                                          e11a6b44b21ad7360655f074a02abffb406bdd2f55c11b9bfbf57b29ec8a6281ea640cd84963d7abe8a1a0310eebc349d804cee241014ad055ea7fa617236b21

                                                                                                                                        • memory/4880-130-0x0000000000000000-mapping.dmp
                                                                                                                                        • memory/5108-131-0x0000000000000000-mapping.dmp
                                                                                                                                        • memory/5108-134-0x0000000000400000-0x0000000000AB2000-memory.dmp
                                                                                                                                          Filesize

                                                                                                                                          6.7MB

                                                                                                                                        • memory/5108-135-0x0000000000400000-0x0000000000AB2000-memory.dmp
                                                                                                                                          Filesize

                                                                                                                                          6.7MB