Analysis

  • max time kernel
    142s
  • max time network
    159s
  • platform
    windows10_x64
  • resource
    win10v20210408
  • submitted
    15-05-2021 03:12

General

  • Target

    337de1739b18e91de064e9f50fa0eb5552afe069012812b6ce29be3b96dcd341.exe

  • Size

    494KB

  • MD5

    46ccdac4f0bbc0b6c8a411db9b058644

  • SHA1

    5e69d0047113d4939cb909f5db0700f9e843ba44

  • SHA256

    337de1739b18e91de064e9f50fa0eb5552afe069012812b6ce29be3b96dcd341

  • SHA512

    292b5ce3c7aba52a53fc756489dd82d48d93891334265478c1a4ace98c18cbc4ee1622e3889f8a9e783c7655585327769e7b28721edd5ff4c31ede206eb16a89

Malware Config

Signatures

  • Modifies firewall policy service 2 TTPs 4 IoCs
  • Ramnit

    Ramnit is a versatile family that holds viruses, worms, and Trojans.

  • Suspicious use of NtCreateProcessExOtherParentProcess 1 IoCs
  • Executes dropped EXE 1 IoCs
  • UPX packed file 3 IoCs

    Detects executables packed with UPX/modified UPX open source packer.

  • Drops file in Program Files directory 3 IoCs
  • Program crash 1 IoCs
  • Suspicious behavior: EnumeratesProcesses 16 IoCs
  • Suspicious behavior: MapViewOfSection 61 IoCs
  • Suspicious use of AdjustPrivilegeToken 4 IoCs
  • Suspicious use of WriteProcessMemory 64 IoCs

Processes

  • C:\Windows\system32\lsass.exe
    C:\Windows\system32\lsass.exe
    1⤵
      PID:624
    • C:\Windows\system32\winlogon.exe
      winlogon.exe
      1⤵
        PID:544
        • C:\Windows\system32\dwm.exe
          "dwm.exe"
          2⤵
            PID:976
          • C:\Windows\system32\fontdrvhost.exe
            "fontdrvhost.exe"
            2⤵
              PID:728
          • c:\windows\system32\svchost.exe
            c:\windows\system32\svchost.exe -k dcomlaunch -s PlugPlay
            1⤵
              PID:708
            • C:\Windows\system32\svchost.exe
              C:\Windows\system32\svchost.exe -k DcomLaunch
              1⤵
                PID:792
                • C:\Windows\System32\RuntimeBroker.exe
                  C:\Windows\System32\RuntimeBroker.exe -Embedding
                  2⤵
                    PID:3492
                  • C:\Windows\system32\wbem\wmiprvse.exe
                    C:\Windows\system32\wbem\wmiprvse.exe
                    2⤵
                      PID:3524
                    • C:\Windows\system32\DllHost.exe
                      C:\Windows\system32\DllHost.exe /Processid:{3EB3C877-1F16-487C-9050-104DBCD66683}
                      2⤵
                        PID:2296
                      • C:\Windows\system32\DllHost.exe
                        C:\Windows\system32\DllHost.exe /Processid:{3EB3C877-1F16-487C-9050-104DBCD66683}
                        2⤵
                          PID:3764
                        • C:\Windows\SystemApps\Microsoft.Windows.Cortana_cw5n1h2txyewy\SearchUI.exe
                          "C:\Windows\SystemApps\Microsoft.Windows.Cortana_cw5n1h2txyewy\SearchUI.exe" -ServerName:CortanaUI.AppXa50dqqa5gqv4a428c9y1jjw7m3btvepj.mca
                          2⤵
                            PID:3264
                          • C:\Windows\SystemApps\ShellExperienceHost_cw5n1h2txyewy\ShellExperienceHost.exe
                            "C:\Windows\SystemApps\ShellExperienceHost_cw5n1h2txyewy\ShellExperienceHost.exe" -ServerName:App.AppXtk181tbxbce2qsex02s8tw7hfxa9xb3t.mca
                            2⤵
                              PID:3252
                            • C:\Windows\system32\wbem\wmiprvse.exe
                              C:\Windows\system32\wbem\wmiprvse.exe -Embedding
                              2⤵
                                PID:2780
                            • c:\windows\system32\svchost.exe
                              c:\windows\system32\svchost.exe -k localservicenetworkrestricted -s EventLog
                              1⤵
                                PID:1120
                              • c:\windows\system32\svchost.exe
                                c:\windows\system32\svchost.exe -k networkservice -s Dnscache
                                1⤵
                                  PID:1644
                                • C:\Windows\Explorer.EXE
                                  C:\Windows\Explorer.EXE
                                  1⤵
                                    PID:3044
                                    • C:\Users\Admin\AppData\Local\Temp\337de1739b18e91de064e9f50fa0eb5552afe069012812b6ce29be3b96dcd341.exe
                                      "C:\Users\Admin\AppData\Local\Temp\337de1739b18e91de064e9f50fa0eb5552afe069012812b6ce29be3b96dcd341.exe"
                                      2⤵
                                      • Modifies firewall policy service
                                      • Suspicious behavior: EnumeratesProcesses
                                      • Suspicious behavior: MapViewOfSection
                                      • Suspicious use of AdjustPrivilegeToken
                                      • Suspicious use of WriteProcessMemory
                                      PID:852
                                      • C:\Users\Admin\AppData\Local\Temp\337de1739b18e91de064e9f50fa0eb5552afe069012812b6ce29be3b96dcd341Srv.exe
                                        C:\Users\Admin\AppData\Local\Temp\337de1739b18e91de064e9f50fa0eb5552afe069012812b6ce29be3b96dcd341Srv.exe
                                        3⤵
                                        • Executes dropped EXE
                                        • Drops file in Program Files directory
                                        PID:4056
                                        • C:\Windows\SysWOW64\WerFault.exe
                                          C:\Windows\SysWOW64\WerFault.exe -u -p 4056 -s 476
                                          4⤵
                                          • Suspicious use of NtCreateProcessExOtherParentProcess
                                          • Program crash
                                          • Suspicious behavior: EnumeratesProcesses
                                          • Suspicious use of AdjustPrivilegeToken
                                          PID:1632
                                  • c:\windows\system32\svchost.exe
                                    c:\windows\system32\svchost.exe -k localservice -s CDPSvc
                                    1⤵
                                      PID:1900
                                    • c:\windows\system32\svchost.exe
                                      c:\windows\system32\svchost.exe -k netsvcs -s Browser
                                      1⤵
                                        PID:2840
                                      • c:\windows\system32\svchost.exe
                                        c:\windows\system32\svchost.exe -k netsvcs -s WpnService
                                        1⤵
                                          PID:2696
                                        • c:\windows\system32\svchost.exe
                                          c:\windows\system32\svchost.exe -k netsvcs -s Winmgmt
                                          1⤵
                                            PID:2680
                                            • C:\Windows\system32\wbem\WMIADAP.EXE
                                              wmiadap.exe /F /T /R
                                              2⤵
                                                PID:1816
                                            • c:\windows\system32\svchost.exe
                                              c:\windows\system32\svchost.exe -k localsystemnetworkrestricted -s TrkWks
                                              1⤵
                                                PID:2652
                                              • c:\windows\system32\svchost.exe
                                                c:\windows\system32\svchost.exe -k networkservice -s CryptSvc
                                                1⤵
                                                  PID:2608
                                                • C:\Program Files\Common Files\Microsoft Shared\ClickToRun\OfficeClickToRun.exe
                                                  "C:\Program Files\Common Files\Microsoft Shared\ClickToRun\OfficeClickToRun.exe" /service
                                                  1⤵
                                                    PID:2588
                                                  • c:\windows\system32\taskhostw.exe
                                                    taskhostw.exe {222A245B-E637-4AE9-A93F-A59CA119A75E}
                                                    1⤵
                                                      PID:2500
                                                    • c:\windows\system32\svchost.exe
                                                      c:\windows\system32\svchost.exe -k netsvcs -s LanmanServer
                                                      1⤵
                                                        PID:2440
                                                      • c:\windows\system32\svchost.exe
                                                        c:\windows\system32\svchost.exe -k netsvcs -s IKEEXT
                                                        1⤵
                                                          PID:2432
                                                        • c:\windows\system32\svchost.exe
                                                          c:\windows\system32\svchost.exe -k networkservicenetworkrestricted -s PolicyAgent
                                                          1⤵
                                                            PID:2424
                                                          • c:\windows\system32\svchost.exe
                                                            c:\windows\system32\svchost.exe -k unistacksvcgroup -s CDPUserSvc
                                                            1⤵
                                                              PID:2356
                                                            • c:\windows\system32\sihost.exe
                                                              sihost.exe
                                                              1⤵
                                                                PID:2348
                                                              • c:\windows\system32\svchost.exe
                                                                c:\windows\system32\svchost.exe -k appmodel -s tiledatamodelsvc
                                                                1⤵
                                                                  PID:2168
                                                                • c:\windows\system32\svchost.exe
                                                                  c:\windows\system32\svchost.exe -k networkservice -s LanmanWorkstation
                                                                  1⤵
                                                                    PID:1608
                                                                  • C:\Windows\System32\spoolsv.exe
                                                                    C:\Windows\System32\spoolsv.exe
                                                                    1⤵
                                                                      PID:2016
                                                                    • c:\windows\system32\svchost.exe
                                                                      c:\windows\system32\svchost.exe -k netsvcs -s ShellHWDetection
                                                                      1⤵
                                                                        PID:1952
                                                                      • c:\windows\system32\svchost.exe
                                                                        c:\windows\system32\svchost.exe -k appmodel -s StateRepository
                                                                        1⤵
                                                                          PID:1828
                                                                        • C:\Windows\System32\svchost.exe
                                                                          C:\Windows\System32\svchost.exe -k LocalServiceNetworkRestricted
                                                                          1⤵
                                                                            PID:1808
                                                                          • C:\Windows\system32\svchost.exe
                                                                            C:\Windows\system32\svchost.exe -k LocalServiceNetworkRestricted
                                                                            1⤵
                                                                              PID:1800
                                                                            • c:\windows\system32\svchost.exe
                                                                              c:\windows\system32\svchost.exe -k localservice -s netprofm
                                                                              1⤵
                                                                                PID:1760
                                                                              • C:\Windows\System32\svchost.exe
                                                                                C:\Windows\System32\svchost.exe -k LocalServiceNetworkRestricted
                                                                                1⤵
                                                                                  PID:1612
                                                                                • c:\windows\system32\svchost.exe
                                                                                  c:\windows\system32\svchost.exe -k networkservice -s NlaSvc
                                                                                  1⤵
                                                                                    PID:1588
                                                                                  • c:\windows\system32\svchost.exe
                                                                                    c:\windows\system32\svchost.exe -k localservice -s FontCache
                                                                                    1⤵
                                                                                      PID:1472
                                                                                    • c:\windows\system32\svchost.exe
                                                                                      c:\windows\system32\svchost.exe -k localsystemnetworkrestricted -s AudioEndpointBuilder
                                                                                      1⤵
                                                                                        PID:1464
                                                                                      • c:\windows\system32\svchost.exe
                                                                                        c:\windows\system32\svchost.exe -k localservicenetworkrestricted -s Dhcp
                                                                                        1⤵
                                                                                          PID:1412
                                                                                        • c:\windows\system32\svchost.exe
                                                                                          c:\windows\system32\svchost.exe -k netsvcs -s SENS
                                                                                          1⤵
                                                                                            PID:1376
                                                                                          • c:\windows\system32\svchost.exe
                                                                                            c:\windows\system32\svchost.exe -k netsvcs -s UserManager
                                                                                            1⤵
                                                                                              PID:1332
                                                                                            • c:\windows\system32\svchost.exe
                                                                                              c:\windows\system32\svchost.exe -k localservice -s nsi
                                                                                              1⤵
                                                                                                PID:1324
                                                                                              • c:\windows\system32\svchost.exe
                                                                                                c:\windows\system32\svchost.exe -k localservice -s EventSystem
                                                                                                1⤵
                                                                                                  PID:1192
                                                                                                • c:\windows\system32\svchost.exe
                                                                                                  c:\windows\system32\svchost.exe -k netsvcs -s Themes
                                                                                                  1⤵
                                                                                                    PID:1184
                                                                                                  • c:\windows\system32\svchost.exe
                                                                                                    c:\windows\system32\svchost.exe -k netsvcs -s ProfSvc
                                                                                                    1⤵
                                                                                                      PID:1088
                                                                                                    • c:\windows\system32\svchost.exe
                                                                                                      c:\windows\system32\svchost.exe -k netsvcs -s Schedule
                                                                                                      1⤵
                                                                                                        PID:1028
                                                                                                      • C:\Windows\system32\svchost.exe
                                                                                                        C:\Windows\system32\svchost.exe -k LocalServiceNoNetwork
                                                                                                        1⤵
                                                                                                          PID:808
                                                                                                        • c:\windows\system32\svchost.exe
                                                                                                          c:\windows\system32\svchost.exe -k localsystemnetworkrestricted -s NcbService
                                                                                                          1⤵
                                                                                                            PID:64
                                                                                                          • c:\windows\system32\svchost.exe
                                                                                                            c:\windows\system32\svchost.exe -k localservicenetworkrestricted -s lmhosts
                                                                                                            1⤵
                                                                                                              PID:396
                                                                                                            • c:\windows\system32\svchost.exe
                                                                                                              c:\windows\system32\svchost.exe -k netsvcs -s gpsvc
                                                                                                              1⤵
                                                                                                                PID:340
                                                                                                              • c:\windows\system32\svchost.exe
                                                                                                                c:\windows\system32\svchost.exe -k dcomlaunch -s LSM
                                                                                                                1⤵
                                                                                                                  PID:888
                                                                                                                • c:\windows\system32\svchost.exe
                                                                                                                  c:\windows\system32\svchost.exe -k rpcss
                                                                                                                  1⤵
                                                                                                                    PID:840
                                                                                                                  • C:\Windows\system32\fontdrvhost.exe
                                                                                                                    "fontdrvhost.exe"
                                                                                                                    1⤵
                                                                                                                      PID:720
                                                                                                                    • \??\c:\windows\system32\svchost.exe
                                                                                                                      c:\windows\system32\svchost.exe -k netsvcs -s BITS
                                                                                                                      1⤵
                                                                                                                        PID:1048
                                                                                                                      • C:\Windows\system32\svchost.exe
                                                                                                                        C:\Windows\system32\svchost.exe -k LocalService -s WinHttpAutoProxySvc
                                                                                                                        1⤵
                                                                                                                          PID:1144
                                                                                                                        • \??\c:\windows\system32\svchost.exe
                                                                                                                          c:\windows\system32\svchost.exe -k localserviceandnoimpersonation -s SSDPSRV
                                                                                                                          1⤵
                                                                                                                            PID:2464

                                                                                                                          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:\USERS\ADMIN\APPDATA\LOCAL\TEMP\337DE1739B18E91DE064E9F50FA0EB5552AFE069012812B6CE29BE3B96DCD341SRV.EXE
                                                                                                                            MD5

                                                                                                                            d8ce8e59dc1b438493939ab9753807d0

                                                                                                                            SHA1

                                                                                                                            fa3ec7549a6f496749762cbed1038a2cb1951dca

                                                                                                                            SHA256

                                                                                                                            61c6b349fe8f639b7d9d56a81b005a2f86b05c5cad20225ff6ba3aa24e592c24

                                                                                                                            SHA512

                                                                                                                            7ff83c93e3b9f17a2fae2a14a5a0ddfc498cc3d7cec5dffda45936383b3c2c2ee2aa62719b2165d74b1bf676a71b55191e45702b576cc059fa6af24ba74ae954

                                                                                                                          • C:\Users\Admin\AppData\Local\Temp\337de1739b18e91de064e9f50fa0eb5552afe069012812b6ce29be3b96dcd341Srv.exe
                                                                                                                            MD5

                                                                                                                            d8ce8e59dc1b438493939ab9753807d0

                                                                                                                            SHA1

                                                                                                                            fa3ec7549a6f496749762cbed1038a2cb1951dca

                                                                                                                            SHA256

                                                                                                                            61c6b349fe8f639b7d9d56a81b005a2f86b05c5cad20225ff6ba3aa24e592c24

                                                                                                                            SHA512

                                                                                                                            7ff83c93e3b9f17a2fae2a14a5a0ddfc498cc3d7cec5dffda45936383b3c2c2ee2aa62719b2165d74b1bf676a71b55191e45702b576cc059fa6af24ba74ae954

                                                                                                                          • memory/852-120-0x0000000000790000-0x0000000000791000-memory.dmp
                                                                                                                            Filesize

                                                                                                                            4KB

                                                                                                                          • memory/4056-114-0x0000000000000000-mapping.dmp
                                                                                                                          • memory/4056-118-0x00000000001F0000-0x00000000001FF000-memory.dmp
                                                                                                                            Filesize

                                                                                                                            60KB

                                                                                                                          • memory/4056-116-0x000000007FEA0000-0x000000007FEAC000-memory.dmp
                                                                                                                            Filesize

                                                                                                                            48KB

                                                                                                                          • memory/4056-119-0x0000000000400000-0x0000000000435000-memory.dmp
                                                                                                                            Filesize

                                                                                                                            212KB