Analysis

  • max time kernel
    167s
  • max time network
    173s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20220812-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20220812-enlocale:en-usos:windows10-2004-x64system
  • submitted
    03-10-2022 23:07

General

  • Target

    8b2848db25a00f645822f12ccbb2c656d01b40d65987ad6350434306adb62ecc.dll

  • Size

    78KB

  • MD5

    4c945719abadac53692359c0e1be80f0

  • SHA1

    48052fd7499fe8b1e7da7418c71550dba6897605

  • SHA256

    8b2848db25a00f645822f12ccbb2c656d01b40d65987ad6350434306adb62ecc

  • SHA512

    0a1053ec3d7b07951c8effce553e9a455e2673841ec8880d5d310b31ce3d2eb35635e371b9ad02ebd39d25d1f3f7542015c1ee4aaebc2ad54f9914330433d6c9

  • SSDEEP

    1536:g0qfWT5MXE8hzFJw+pFr0qfWT5MB7NsP6JRHFoaUxra6H:bwWT5gtzTrpFIwWT5m7ay7FX8HH

Score
10/10

Malware Config

Signatures

  • Modifies firewall policy service 2 TTPs 4 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 WriteProcessMemory 64 IoCs

Processes

  • C:\Windows\system32\rundll32.exe
    rundll32.exe C:\Users\Admin\AppData\Local\Temp\8b2848db25a00f645822f12ccbb2c656d01b40d65987ad6350434306adb62ecc.dll,#1
    1⤵
    • Suspicious use of WriteProcessMemory
    PID:2380
    • C:\Windows\SysWOW64\rundll32.exe
      rundll32.exe C:\Users\Admin\AppData\Local\Temp\8b2848db25a00f645822f12ccbb2c656d01b40d65987ad6350434306adb62ecc.dll,#1
      2⤵
      • Suspicious use of WriteProcessMemory
      PID:2232
      • C:\Users\Admin\AppData\Local\Temp\hrl200B.tmp
        C:\Users\Admin\AppData\Local\Temp\hrl200B.tmp
        3⤵
        • Modifies firewall policy service
        • Executes dropped EXE
        • Drops file in System32 directory
        • Suspicious behavior: EnumeratesProcesses
        • Suspicious behavior: MapViewOfSection
        • Suspicious use of AdjustPrivilegeToken
        • Suspicious use of WriteProcessMemory
        PID:4980
  • C:\Windows\System32\RuntimeBroker.exe
    C:\Windows\System32\RuntimeBroker.exe -Embedding
    1⤵
      PID:804
    • C:\Windows\system32\svchost.exe
      C:\Windows\system32\svchost.exe -k LocalService -s W32Time
      1⤵
        PID:3140
      • C:\Windows\system32\SppExtComObj.exe
        C:\Windows\system32\SppExtComObj.exe -Embedding
        1⤵
          PID:3056
        • C:\Windows\system32\svchost.exe
          C:\Windows\system32\svchost.exe -k LocalServiceNetworkRestricted -p -s WinHttpAutoProxySvc
          1⤵
            PID:2508
          • C:\Windows\system32\svchost.exe
            C:\Windows\system32\svchost.exe -k LocalService -p -s CDPSvc
            1⤵
              PID:1440
            • C:\Windows\System32\svchost.exe
              C:\Windows\System32\svchost.exe -k LocalSystemNetworkRestricted -p -s StorSvc
              1⤵
                PID:820
              • C:\Windows\system32\svchost.exe
                C:\Windows\system32\svchost.exe -k netsvcs -p -s wlidsvc
                1⤵
                  PID:4520
                • C:\Windows\System32\svchost.exe
                  C:\Windows\System32\svchost.exe -k LocalService -p -s LicenseManager
                  1⤵
                    PID:1504
                  • C:\Windows\System32\svchost.exe
                    C:\Windows\System32\svchost.exe -k netsvcs -p
                    1⤵
                      PID:4184
                    • C:\Windows\System32\RuntimeBroker.exe
                      C:\Windows\System32\RuntimeBroker.exe -Embedding
                      1⤵
                        PID:4604
                      • C:\Windows\system32\DllHost.exe
                        C:\Windows\system32\DllHost.exe /Processid:{3EB3C877-1F16-487C-9050-104DBCD66683}
                        1⤵
                          PID:4420
                        • C:\Windows\System32\RuntimeBroker.exe
                          C:\Windows\System32\RuntimeBroker.exe -Embedding
                          1⤵
                            PID:3832
                          • C:\Windows\SystemApps\Microsoft.Windows.Search_cw5n1h2txyewy\SearchApp.exe
                            "C:\Windows\SystemApps\Microsoft.Windows.Search_cw5n1h2txyewy\SearchApp.exe" -ServerName:CortanaUI.AppX8z9r6jm96hw4bsbneegw0kyxx296wr9t.mca
                            1⤵
                              PID:3660
                            • C:\Windows\System32\RuntimeBroker.exe
                              C:\Windows\System32\RuntimeBroker.exe -Embedding
                              1⤵
                                PID:3572
                              • C:\Windows\SystemApps\Microsoft.Windows.StartMenuExperienceHost_cw5n1h2txyewy\StartMenuExperienceHost.exe
                                "C:\Windows\SystemApps\Microsoft.Windows.StartMenuExperienceHost_cw5n1h2txyewy\StartMenuExperienceHost.exe" -ServerName:App.AppXywbrabmsek0gm3tkwpr5kwzbs55tkqay.mca
                                1⤵
                                  PID:3508
                                • C:\Windows\system32\DllHost.exe
                                  C:\Windows\system32\DllHost.exe /Processid:{3EB3C877-1F16-487C-9050-104DBCD66683}
                                  1⤵
                                    PID:3416
                                  • C:\Windows\system32\svchost.exe
                                    C:\Windows\system32\svchost.exe -k ClipboardSvcGroup -p -s cbdhsvc
                                    1⤵
                                      PID:3216
                                    • C:\Windows\Explorer.EXE
                                      C:\Windows\Explorer.EXE
                                      1⤵
                                        PID:3076
                                      • C:\Windows\system32\svchost.exe
                                        C:\Windows\system32\svchost.exe -k netsvcs -p -s WpnService
                                        1⤵
                                          PID:2656
                                        • C:\Windows\system32\svchost.exe
                                          C:\Windows\system32\svchost.exe -k netsvcs -p -s Winmgmt
                                          1⤵
                                            PID:2644
                                          • C:\Windows\System32\svchost.exe
                                            C:\Windows\System32\svchost.exe -k LocalSystemNetworkRestricted -p -s TrkWks
                                            1⤵
                                              PID:2628
                                            • C:\Windows\system32\svchost.exe
                                              C:\Windows\system32\svchost.exe -k netsvcs -p -s LanmanServer
                                              1⤵
                                                PID:2592
                                              • C:\Windows\system32\taskhostw.exe
                                                taskhostw.exe {222A245B-E637-4AE9-A93F-A59CA119A75E}
                                                1⤵
                                                  PID:2580
                                                • C:\Program Files\Common Files\Microsoft Shared\ClickToRun\OfficeClickToRun.exe
                                                  "C:\Program Files\Common Files\Microsoft Shared\ClickToRun\OfficeClickToRun.exe" /service
                                                  1⤵
                                                    PID:2532
                                                  • C:\Windows\system32\svchost.exe
                                                    C:\Windows\system32\svchost.exe -k NetworkService -p -s CryptSvc
                                                    1⤵
                                                      PID:2524
                                                    • C:\Windows\system32\svchost.exe
                                                      C:\Windows\system32\svchost.exe -k UnistackSvcGroup -s CDPUserSvc
                                                      1⤵
                                                        PID:2444
                                                      • C:\Windows\system32\sihost.exe
                                                        sihost.exe
                                                        1⤵
                                                          PID:2436
                                                        • C:\Windows\system32\svchost.exe
                                                          C:\Windows\system32\svchost.exe -k NetworkServiceNetworkRestricted -p -s PolicyAgent
                                                          1⤵
                                                            PID:2292
                                                          • C:\Windows\system32\svchost.exe
                                                            C:\Windows\system32\svchost.exe -k netsvcs -p -s IKEEXT
                                                            1⤵
                                                              PID:2280
                                                            • C:\Windows\System32\svchost.exe
                                                              C:\Windows\System32\svchost.exe -k NetworkService -p -s LanmanWorkstation
                                                              1⤵
                                                                PID:2152
                                                              • C:\Windows\system32\svchost.exe
                                                                C:\Windows\system32\svchost.exe -k LocalServiceNoNetworkFirewall -p
                                                                1⤵
                                                                  PID:2100
                                                                • C:\Windows\System32\svchost.exe
                                                                  C:\Windows\System32\svchost.exe -k LocalServiceNetworkRestricted -s RmSvc
                                                                  1⤵
                                                                    PID:1780
                                                                  • C:\Windows\System32\spoolsv.exe
                                                                    C:\Windows\System32\spoolsv.exe
                                                                    1⤵
                                                                      PID:1744
                                                                    • C:\Windows\System32\svchost.exe
                                                                      C:\Windows\System32\svchost.exe -k netsvcs -p -s ShellHWDetection
                                                                      1⤵
                                                                        PID:1980
                                                                      • C:\Windows\system32\svchost.exe
                                                                        C:\Windows\system32\svchost.exe -k NetworkService -p -s Dnscache
                                                                        1⤵
                                                                          PID:1916
                                                                        • C:\Windows\System32\svchost.exe
                                                                          C:\Windows\System32\svchost.exe -k LocalServiceNetworkRestricted -p
                                                                          1⤵
                                                                            PID:1908
                                                                          • C:\Windows\System32\svchost.exe
                                                                            C:\Windows\System32\svchost.exe -k LocalService -p -s netprofm
                                                                            1⤵
                                                                              PID:1880
                                                                            • C:\Windows\system32\svchost.exe
                                                                              C:\Windows\system32\svchost.exe -k appmodel -p -s StateRepository
                                                                              1⤵
                                                                                PID:1860
                                                                              • C:\Windows\System32\svchost.exe
                                                                                C:\Windows\System32\svchost.exe -k LocalServiceNetworkRestricted -p
                                                                                1⤵
                                                                                  PID:1756
                                                                                • C:\Windows\System32\svchost.exe
                                                                                  C:\Windows\System32\svchost.exe -k NetworkService -p -s NlaSvc
                                                                                  1⤵
                                                                                    PID:1716
                                                                                  • C:\Windows\system32\svchost.exe
                                                                                    C:\Windows\system32\svchost.exe -k LocalService -p -s FontCache
                                                                                    1⤵
                                                                                      PID:1628
                                                                                    • C:\Windows\System32\svchost.exe
                                                                                      C:\Windows\System32\svchost.exe -k LocalSystemNetworkRestricted -p -s AudioEndpointBuilder
                                                                                      1⤵
                                                                                        PID:1604
                                                                                      • C:\Windows\system32\svchost.exe
                                                                                        C:\Windows\system32\svchost.exe -k LocalServiceNetworkRestricted -p -s Dhcp
                                                                                        1⤵
                                                                                          PID:1568
                                                                                        • C:\Windows\system32\svchost.exe
                                                                                          C:\Windows\system32\svchost.exe -k netsvcs -p -s SENS
                                                                                          1⤵
                                                                                            PID:1544
                                                                                          • C:\Windows\system32\svchost.exe
                                                                                            C:\Windows\system32\svchost.exe -k LocalService -p -s nsi
                                                                                            1⤵
                                                                                              PID:1472
                                                                                            • C:\Windows\System32\svchost.exe
                                                                                              C:\Windows\System32\svchost.exe -k netsvcs -p -s Themes
                                                                                              1⤵
                                                                                                PID:1396
                                                                                              • C:\Windows\system32\svchost.exe
                                                                                                C:\Windows\system32\svchost.exe -k LocalService -p -s EventSystem
                                                                                                1⤵
                                                                                                  PID:1388
                                                                                                • C:\Windows\system32\svchost.exe
                                                                                                  C:\Windows\system32\svchost.exe -k netsvcs -p -s UserManager
                                                                                                  1⤵
                                                                                                    PID:1324
                                                                                                  • C:\Windows\System32\svchost.exe
                                                                                                    C:\Windows\System32\svchost.exe -k LocalServiceNetworkRestricted -p -s EventLog
                                                                                                    1⤵
                                                                                                      PID:1248
                                                                                                    • C:\Windows\system32\svchost.exe
                                                                                                      C:\Windows\system32\svchost.exe -k LocalService -p -s DispBrokerDesktopSvc
                                                                                                      1⤵
                                                                                                        PID:1220
                                                                                                      • C:\Windows\system32\svchost.exe
                                                                                                        C:\Windows\system32\svchost.exe -k netsvcs -p -s ProfSvc
                                                                                                        1⤵
                                                                                                          PID:1192
                                                                                                        • C:\Windows\system32\svchost.exe
                                                                                                          C:\Windows\system32\svchost.exe -k netsvcs -p -s Schedule
                                                                                                          1⤵
                                                                                                            PID:1144
                                                                                                          • C:\Windows\system32\svchost.exe
                                                                                                            C:\Windows\system32\svchost.exe -k LocalServiceNetworkRestricted -p -s TimeBrokerSvc
                                                                                                            1⤵
                                                                                                              PID:1052
                                                                                                            • C:\Windows\System32\svchost.exe
                                                                                                              C:\Windows\System32\svchost.exe -k LocalSystemNetworkRestricted -p -s NcbService
                                                                                                              1⤵
                                                                                                                PID:1044
                                                                                                              • C:\Windows\system32\svchost.exe
                                                                                                                C:\Windows\system32\svchost.exe -k LocalServiceNoNetwork -p
                                                                                                                1⤵
                                                                                                                  PID:952
                                                                                                                • C:\Windows\System32\svchost.exe
                                                                                                                  C:\Windows\System32\svchost.exe -k LocalServiceNetworkRestricted -p -s lmhosts
                                                                                                                  1⤵
                                                                                                                    PID:700
                                                                                                                  • C:\Windows\system32\svchost.exe
                                                                                                                    C:\Windows\system32\svchost.exe -k netsvcs -p -s gpsvc
                                                                                                                    1⤵
                                                                                                                      PID:524
                                                                                                                    • C:\Windows\system32\dwm.exe
                                                                                                                      "dwm.exe"
                                                                                                                      1⤵
                                                                                                                        PID:60
                                                                                                                      • C:\Windows\system32\svchost.exe
                                                                                                                        C:\Windows\system32\svchost.exe -k DcomLaunch -p -s LSM
                                                                                                                        1⤵
                                                                                                                          PID:956
                                                                                                                        • C:\Windows\system32\svchost.exe
                                                                                                                          C:\Windows\system32\svchost.exe -k RPCSS -p
                                                                                                                          1⤵
                                                                                                                            PID:908
                                                                                                                          • C:\Windows\system32\svchost.exe
                                                                                                                            C:\Windows\system32\svchost.exe -k DcomLaunch -p
                                                                                                                            1⤵
                                                                                                                              PID:796
                                                                                                                              • C:\Windows\system32\wbem\wmiprvse.exe
                                                                                                                                C:\Windows\system32\wbem\wmiprvse.exe -secured -Embedding
                                                                                                                                2⤵
                                                                                                                                  PID:4464
                                                                                                                              • C:\Windows\system32\fontdrvhost.exe
                                                                                                                                "fontdrvhost.exe"
                                                                                                                                1⤵
                                                                                                                                  PID:784
                                                                                                                                • C:\Windows\system32\fontdrvhost.exe
                                                                                                                                  "fontdrvhost.exe"
                                                                                                                                  1⤵
                                                                                                                                    PID:776
                                                                                                                                  • C:\Windows\system32\lsass.exe
                                                                                                                                    C:\Windows\system32\lsass.exe
                                                                                                                                    1⤵
                                                                                                                                      PID:672
                                                                                                                                    • C:\Windows\system32\winlogon.exe
                                                                                                                                      winlogon.exe
                                                                                                                                      1⤵
                                                                                                                                        PID:596
                                                                                                                                      • C:\Windows\SysWOW64\zepvew.exe
                                                                                                                                        C:\Windows\SysWOW64\zepvew.exe
                                                                                                                                        1⤵
                                                                                                                                        • Executes dropped EXE
                                                                                                                                        • Loads dropped DLL
                                                                                                                                        • Drops file in System32 directory
                                                                                                                                        • Suspicious behavior: EnumeratesProcesses
                                                                                                                                        • Suspicious use of AdjustPrivilegeToken
                                                                                                                                        PID:4760

                                                                                                                                      Network

                                                                                                                                      MITRE ATT&CK Enterprise v6

                                                                                                                                      Replay Monitor

                                                                                                                                      Loading Replay Monitor...

                                                                                                                                      Downloads

                                                                                                                                      • C:\Users\Admin\AppData\Local\Temp\hrl200B.tmp

                                                                                                                                        Filesize

                                                                                                                                        66KB

                                                                                                                                        MD5

                                                                                                                                        49f70000dd834768bf98ff77f73545b8

                                                                                                                                        SHA1

                                                                                                                                        e2748467e2af4ceb779d171224008b0e45a03bf1

                                                                                                                                        SHA256

                                                                                                                                        8eafe198416becabf3d7279877e7d90a4503f178763cd77aa42852ee6794a5af

                                                                                                                                        SHA512

                                                                                                                                        e4facc8915fee3c45f0233be541a3a030f99d06efdece5ca11899e79241224eb031b527affcfae33d639be936558618a818ebb6d0904017f875dbf6688fb72b5

                                                                                                                                      • C:\Users\Admin\AppData\Local\Temp\hrl200B.tmp

                                                                                                                                        Filesize

                                                                                                                                        66KB

                                                                                                                                        MD5

                                                                                                                                        49f70000dd834768bf98ff77f73545b8

                                                                                                                                        SHA1

                                                                                                                                        e2748467e2af4ceb779d171224008b0e45a03bf1

                                                                                                                                        SHA256

                                                                                                                                        8eafe198416becabf3d7279877e7d90a4503f178763cd77aa42852ee6794a5af

                                                                                                                                        SHA512

                                                                                                                                        e4facc8915fee3c45f0233be541a3a030f99d06efdece5ca11899e79241224eb031b527affcfae33d639be936558618a818ebb6d0904017f875dbf6688fb72b5

                                                                                                                                      • C:\Windows\SysWOW64\gei33.dll

                                                                                                                                        Filesize

                                                                                                                                        78KB

                                                                                                                                        MD5

                                                                                                                                        4c945719abadac53692359c0e1be80f0

                                                                                                                                        SHA1

                                                                                                                                        48052fd7499fe8b1e7da7418c71550dba6897605

                                                                                                                                        SHA256

                                                                                                                                        8b2848db25a00f645822f12ccbb2c656d01b40d65987ad6350434306adb62ecc

                                                                                                                                        SHA512

                                                                                                                                        0a1053ec3d7b07951c8effce553e9a455e2673841ec8880d5d310b31ce3d2eb35635e371b9ad02ebd39d25d1f3f7542015c1ee4aaebc2ad54f9914330433d6c9

                                                                                                                                      • C:\Windows\SysWOW64\zepvew.exe

                                                                                                                                        Filesize

                                                                                                                                        66KB

                                                                                                                                        MD5

                                                                                                                                        49f70000dd834768bf98ff77f73545b8

                                                                                                                                        SHA1

                                                                                                                                        e2748467e2af4ceb779d171224008b0e45a03bf1

                                                                                                                                        SHA256

                                                                                                                                        8eafe198416becabf3d7279877e7d90a4503f178763cd77aa42852ee6794a5af

                                                                                                                                        SHA512

                                                                                                                                        e4facc8915fee3c45f0233be541a3a030f99d06efdece5ca11899e79241224eb031b527affcfae33d639be936558618a818ebb6d0904017f875dbf6688fb72b5

                                                                                                                                      • C:\Windows\SysWOW64\zepvew.exe

                                                                                                                                        Filesize

                                                                                                                                        66KB

                                                                                                                                        MD5

                                                                                                                                        49f70000dd834768bf98ff77f73545b8

                                                                                                                                        SHA1

                                                                                                                                        e2748467e2af4ceb779d171224008b0e45a03bf1

                                                                                                                                        SHA256

                                                                                                                                        8eafe198416becabf3d7279877e7d90a4503f178763cd77aa42852ee6794a5af

                                                                                                                                        SHA512

                                                                                                                                        e4facc8915fee3c45f0233be541a3a030f99d06efdece5ca11899e79241224eb031b527affcfae33d639be936558618a818ebb6d0904017f875dbf6688fb72b5

                                                                                                                                      • memory/4760-142-0x0000000000400000-0x000000000041A000-memory.dmp

                                                                                                                                        Filesize

                                                                                                                                        104KB

                                                                                                                                      • memory/4760-144-0x0000000000400000-0x000000000041A000-memory.dmp

                                                                                                                                        Filesize

                                                                                                                                        104KB

                                                                                                                                      • memory/4980-137-0x0000000000400000-0x000000000041A000-memory.dmp

                                                                                                                                        Filesize

                                                                                                                                        104KB

                                                                                                                                      • memory/4980-140-0x0000000000400000-0x000000000041A000-memory.dmp

                                                                                                                                        Filesize

                                                                                                                                        104KB

                                                                                                                                      • memory/4980-141-0x000000007FE30000-0x000000007FE3C000-memory.dmp

                                                                                                                                        Filesize

                                                                                                                                        48KB