Analysis

  • max time kernel
    94s
  • max time network
    110s
  • platform
    windows10_x64
  • resource
    win10v20210410
  • submitted
    13-05-2021 15:27

General

  • Target

    61c6b349fe8f639b7d9d56a81b005a2f86b05c5cad20225ff6ba3aa24e592c24.exe

  • Size

    84KB

  • MD5

    d8ce8e59dc1b438493939ab9753807d0

  • SHA1

    fa3ec7549a6f496749762cbed1038a2cb1951dca

  • SHA256

    61c6b349fe8f639b7d9d56a81b005a2f86b05c5cad20225ff6ba3aa24e592c24

  • SHA512

    7ff83c93e3b9f17a2fae2a14a5a0ddfc498cc3d7cec5dffda45936383b3c2c2ee2aa62719b2165d74b1bf676a71b55191e45702b576cc059fa6af24ba74ae954

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
  • UPX packed file 1 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 59 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:628
    • C:\Windows\system32\winlogon.exe
      winlogon.exe
      1⤵
        PID:548
        • C:\Windows\system32\fontdrvhost.exe
          "fontdrvhost.exe"
          2⤵
            PID:716
          • C:\Windows\system32\dwm.exe
            "dwm.exe"
            2⤵
              PID:972
          • c:\windows\system32\svchost.exe
            c:\windows\system32\svchost.exe -k dcomlaunch -s PlugPlay
            1⤵
              PID:724
            • C:\Windows\system32\fontdrvhost.exe
              "fontdrvhost.exe"
              1⤵
                PID:708
              • c:\windows\system32\svchost.exe
                c:\windows\system32\svchost.exe -k rpcss
                1⤵
                  PID:836
                • c:\windows\system32\svchost.exe
                  c:\windows\system32\svchost.exe -k dcomlaunch -s LSM
                  1⤵
                    PID:884
                  • c:\windows\system32\svchost.exe
                    c:\windows\system32\svchost.exe -k netsvcs -s gpsvc
                    1⤵
                      PID:68
                    • C:\Windows\system32\svchost.exe
                      C:\Windows\system32\svchost.exe -k DcomLaunch
                      1⤵
                        PID:792
                        • C:\Windows\SystemApps\ShellExperienceHost_cw5n1h2txyewy\ShellExperienceHost.exe
                          "C:\Windows\SystemApps\ShellExperienceHost_cw5n1h2txyewy\ShellExperienceHost.exe" -ServerName:App.AppXtk181tbxbce2qsex02s8tw7hfxa9xb3t.mca
                          2⤵
                            PID:3248
                          • 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\System32\RuntimeBroker.exe
                              C:\Windows\System32\RuntimeBroker.exe -Embedding
                              2⤵
                                PID:3480
                              • C:\Windows\system32\DllHost.exe
                                C:\Windows\system32\DllHost.exe /Processid:{3EB3C877-1F16-487C-9050-104DBCD66683}
                                2⤵
                                  PID:3704
                                • C:\Windows\system32\DllHost.exe
                                  C:\Windows\system32\DllHost.exe /Processid:{3EB3C877-1F16-487C-9050-104DBCD66683}
                                  2⤵
                                    PID:1780
                                  • C:\Windows\system32\wbem\wmiprvse.exe
                                    C:\Windows\system32\wbem\wmiprvse.exe
                                    2⤵
                                      PID:3028
                                  • c:\windows\system32\svchost.exe
                                    c:\windows\system32\svchost.exe -k localservicenetworkrestricted -s lmhosts
                                    1⤵
                                      PID:360
                                    • c:\windows\system32\svchost.exe
                                      c:\windows\system32\svchost.exe -k netsvcs -s Schedule
                                      1⤵
                                        PID:676
                                        • c:\windows\system32\taskhostw.exe
                                          taskhostw.exe {222A245B-E637-4AE9-A93F-A59CA119A75E}
                                          2⤵
                                            PID:2468
                                        • C:\Windows\system32\svchost.exe
                                          C:\Windows\system32\svchost.exe -k LocalServiceNoNetwork
                                          1⤵
                                            PID:1036
                                          • c:\windows\system32\svchost.exe
                                            c:\windows\system32\svchost.exe -k netsvcs -s ProfSvc
                                            1⤵
                                              PID:1064
                                            • c:\windows\system32\svchost.exe
                                              c:\windows\system32\svchost.exe -k localsystemnetworkrestricted -s NcbService
                                              1⤵
                                                PID:476
                                              • c:\windows\system32\svchost.exe
                                                c:\windows\system32\svchost.exe -k localservicenetworkrestricted -s EventLog
                                                1⤵
                                                  PID:1148
                                                • 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 localservice -s EventSystem
                                                    1⤵
                                                      PID:1192
                                                    • c:\windows\system32\svchost.exe
                                                      c:\windows\system32\svchost.exe -k netsvcs -s UserManager
                                                      1⤵
                                                        PID:1224
                                                        • c:\windows\system32\sihost.exe
                                                          sihost.exe
                                                          2⤵
                                                            PID:2336
                                                        • c:\windows\system32\svchost.exe
                                                          c:\windows\system32\svchost.exe -k networkservice -s LanmanWorkstation
                                                          1⤵
                                                            PID:1452
                                                          • C:\Windows\System32\spoolsv.exe
                                                            C:\Windows\System32\spoolsv.exe
                                                            1⤵
                                                              PID:1976
                                                            • 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 netsvcs -s ShellHWDetection
                                                                1⤵
                                                                  PID:1820
                                                                • C:\Windows\System32\svchost.exe
                                                                  C:\Windows\System32\svchost.exe -k LocalServiceNetworkRestricted
                                                                  1⤵
                                                                    PID:1704
                                                                  • C:\Windows\system32\svchost.exe
                                                                    C:\Windows\system32\svchost.exe -k LocalServiceNetworkRestricted
                                                                    1⤵
                                                                      PID:1696
                                                                    • c:\windows\system32\svchost.exe
                                                                      c:\windows\system32\svchost.exe -k localservice -s netprofm
                                                                      1⤵
                                                                        PID:1672
                                                                      • c:\windows\system32\svchost.exe
                                                                        c:\windows\system32\svchost.exe -k networkservice -s Dnscache
                                                                        1⤵
                                                                          PID:1648
                                                                        • C:\Windows\System32\svchost.exe
                                                                          C:\Windows\System32\svchost.exe -k LocalServiceNetworkRestricted
                                                                          1⤵
                                                                            PID:1616
                                                                            • C:\Windows\system32\AUDIODG.EXE
                                                                              C:\Windows\system32\AUDIODG.EXE 0x3cc
                                                                              2⤵
                                                                                PID:2268
                                                                            • c:\windows\system32\svchost.exe
                                                                              c:\windows\system32\svchost.exe -k appmodel -s tiledatamodelsvc
                                                                              1⤵
                                                                                PID:2148
                                                                              • c:\windows\system32\svchost.exe
                                                                                c:\windows\system32\svchost.exe -k networkservice -s NlaSvc
                                                                                1⤵
                                                                                  PID:1532
                                                                                • c:\windows\system32\svchost.exe
                                                                                  c:\windows\system32\svchost.exe -k localservice -s FontCache
                                                                                  1⤵
                                                                                    PID:1480
                                                                                  • c:\windows\system32\svchost.exe
                                                                                    c:\windows\system32\svchost.exe -k localsystemnetworkrestricted -s AudioEndpointBuilder
                                                                                    1⤵
                                                                                      PID:1472
                                                                                    • c:\windows\system32\svchost.exe
                                                                                      c:\windows\system32\svchost.exe -k netsvcs -s SENS
                                                                                      1⤵
                                                                                        PID:1404
                                                                                      • c:\windows\system32\svchost.exe
                                                                                        c:\windows\system32\svchost.exe -k localservicenetworkrestricted -s Dhcp
                                                                                        1⤵
                                                                                          PID:1396
                                                                                        • c:\windows\system32\svchost.exe
                                                                                          c:\windows\system32\svchost.exe -k localservice -s nsi
                                                                                          1⤵
                                                                                            PID:1296
                                                                                          • c:\windows\system32\svchost.exe
                                                                                            c:\windows\system32\svchost.exe -k unistacksvcgroup -s CDPUserSvc
                                                                                            1⤵
                                                                                              PID:2356
                                                                                            • c:\windows\system32\svchost.exe
                                                                                              c:\windows\system32\svchost.exe -k netsvcs -s LanmanServer
                                                                                              1⤵
                                                                                                PID:2424
                                                                                              • 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:2444
                                                                                                  • c:\windows\system32\svchost.exe
                                                                                                    c:\windows\system32\svchost.exe -k networkservice -s CryptSvc
                                                                                                    1⤵
                                                                                                      PID:2624
                                                                                                    • C:\Program Files\Common Files\Microsoft Shared\ClickToRun\OfficeClickToRun.exe
                                                                                                      "C:\Program Files\Common Files\Microsoft Shared\ClickToRun\OfficeClickToRun.exe" /service
                                                                                                      1⤵
                                                                                                        PID:2612
                                                                                                      • c:\windows\system32\svchost.exe
                                                                                                        c:\windows\system32\svchost.exe -k localsystemnetworkrestricted -s TrkWks
                                                                                                        1⤵
                                                                                                          PID:2668
                                                                                                        • c:\windows\system32\svchost.exe
                                                                                                          c:\windows\system32\svchost.exe -k netsvcs -s WpnService
                                                                                                          1⤵
                                                                                                            PID:2740
                                                                                                          • c:\windows\system32\svchost.exe
                                                                                                            c:\windows\system32\svchost.exe -k netsvcs -s Winmgmt
                                                                                                            1⤵
                                                                                                              PID:2724
                                                                                                              • C:\Windows\system32\wbem\WMIADAP.EXE
                                                                                                                wmiadap.exe /F /T /R
                                                                                                                2⤵
                                                                                                                  PID:4056
                                                                                                              • c:\windows\system32\svchost.exe
                                                                                                                c:\windows\system32\svchost.exe -k netsvcs -s Browser
                                                                                                                1⤵
                                                                                                                  PID:2852
                                                                                                                • C:\Windows\Explorer.EXE
                                                                                                                  C:\Windows\Explorer.EXE
                                                                                                                  1⤵
                                                                                                                    PID:3036
                                                                                                                    • C:\Users\Admin\AppData\Local\Temp\61c6b349fe8f639b7d9d56a81b005a2f86b05c5cad20225ff6ba3aa24e592c24.exe
                                                                                                                      "C:\Users\Admin\AppData\Local\Temp\61c6b349fe8f639b7d9d56a81b005a2f86b05c5cad20225ff6ba3aa24e592c24.exe"
                                                                                                                      2⤵
                                                                                                                      • Modifies firewall policy service
                                                                                                                      • Drops file in Program Files directory
                                                                                                                      • Suspicious behavior: EnumeratesProcesses
                                                                                                                      • Suspicious behavior: MapViewOfSection
                                                                                                                      • Suspicious use of AdjustPrivilegeToken
                                                                                                                      • Suspicious use of WriteProcessMemory
                                                                                                                      PID:3924
                                                                                                                      • C:\Windows\SysWOW64\WerFault.exe
                                                                                                                        C:\Windows\SysWOW64\WerFault.exe -u -p 3924 -s 564
                                                                                                                        3⤵
                                                                                                                        • Suspicious use of NtCreateProcessExOtherParentProcess
                                                                                                                        • Program crash
                                                                                                                        • Suspicious behavior: EnumeratesProcesses
                                                                                                                        • Suspicious use of AdjustPrivilegeToken
                                                                                                                        PID:1852
                                                                                                                  • c:\windows\system32\svchost.exe
                                                                                                                    c:\windows\system32\svchost.exe -k localservice -s CDPSvc
                                                                                                                    1⤵
                                                                                                                      PID:3684
                                                                                                                    • \??\c:\windows\system32\svchost.exe
                                                                                                                      c:\windows\system32\svchost.exe -k netsvcs -s BITS
                                                                                                                      1⤵
                                                                                                                        PID:3224
                                                                                                                      • C:\Windows\system32\svchost.exe
                                                                                                                        C:\Windows\system32\svchost.exe -k LocalService -s WinHttpAutoProxySvc
                                                                                                                        1⤵
                                                                                                                          PID:3976

                                                                                                                        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

                                                                                                                        • memory/3924-114-0x00000000001F0000-0x00000000001FF000-memory.dmp
                                                                                                                          Filesize

                                                                                                                          60KB

                                                                                                                        • memory/3924-115-0x0000000000400000-0x0000000000435000-memory.dmp
                                                                                                                          Filesize

                                                                                                                          212KB