Analysis

  • max time kernel
    54s
  • max time network
    178s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20220812-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20220812-enlocale:en-usos:windows10-2004-x64system
  • submitted
    14-10-2022 11:09

General

  • Target

    33704a16a7c11012e32c350b470bf41ca7de3ec8447270f3875ef977de759b48.exe

  • Size

    127KB

  • MD5

    77b9c1919000ca40b043a9549f5a6690

  • SHA1

    4fa78f3ce6b863c055f83a44436bf25c7f32b69e

  • SHA256

    33704a16a7c11012e32c350b470bf41ca7de3ec8447270f3875ef977de759b48

  • SHA512

    4b4005e831dbea80d341dbe91ff3f5a206b597d613ff52c6175b4961e49f76bbf4f98d6a3771b08e413b1419e1ea6cc510af3c387b7733af7bb4ebd1c8642334

  • SSDEEP

    1536:VsgToKHSmdkIDNxfdPy35wtAFElcab1npIS52eyphSajnS/:SgTfHp9DNxf8816g1pI0TyphL

Score
10/10

Malware Config

Signatures

  • Modifies WinLogon for persistence 2 TTPs 1 IoCs
  • Modifies firewall policy service 2 TTPs 4 IoCs
  • Modifies visibility of file extensions in Explorer 2 TTPs 1 IoCs
  • Modifies visiblity of hidden/system files in Explorer 2 TTPs 1 IoCs
  • Disables RegEdit via registry modification 2 IoCs
  • Disables cmd.exe use via registry modification 1 IoCs
  • Adds Run key to start application 2 TTPs 2 IoCs
  • Drops file in Windows directory 4 IoCs
  • Enumerates physical storage devices 1 TTPs

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

  • Program crash 1 IoCs
  • Suspicious behavior: EnumeratesProcesses 2 IoCs
  • Suspicious behavior: MapViewOfSection 64 IoCs
  • Suspicious use of AdjustPrivilegeToken 1 IoCs
  • Suspicious use of SetWindowsHookEx 1 IoCs
  • Suspicious use of WriteProcessMemory 64 IoCs

Processes

  • C:\Windows\system32\lsass.exe
    C:\Windows\system32\lsass.exe
    1⤵
      PID:672
    • C:\Windows\system32\winlogon.exe
      winlogon.exe
      1⤵
        PID:620
        • C:\Windows\system32\fontdrvhost.exe
          "fontdrvhost.exe"
          2⤵
            PID:788
          • C:\Windows\system32\dwm.exe
            "dwm.exe"
            2⤵
              PID:1016
          • C:\Windows\System32\svchost.exe
            C:\Windows\System32\svchost.exe -k LocalServiceNetworkRestricted -p -s lmhosts
            1⤵
              PID:752
            • C:\Windows\system32\svchost.exe
              C:\Windows\system32\svchost.exe -k LocalServiceNoNetwork -p
              1⤵
                PID:628
              • C:\Windows\System32\svchost.exe
                C:\Windows\System32\svchost.exe -k LocalSystemNetworkRestricted -p -s NcbService
                1⤵
                  PID:424
                • C:\Windows\system32\svchost.exe
                  C:\Windows\system32\svchost.exe -k LocalServiceNetworkRestricted -p -s TimeBrokerSvc
                  1⤵
                    PID:1040
                  • C:\Windows\system32\svchost.exe
                    C:\Windows\system32\svchost.exe -k netsvcs -p -s gpsvc
                    1⤵
                      PID:432
                    • C:\Windows\system32\svchost.exe
                      C:\Windows\system32\svchost.exe -k netsvcs -p -s Schedule
                      1⤵
                        PID:1152
                        • C:\Windows\system32\taskhostw.exe
                          taskhostw.exe {222A245B-E637-4AE9-A93F-A59CA119A75E}
                          2⤵
                            PID:2512
                        • C:\Windows\system32\svchost.exe
                          C:\Windows\system32\svchost.exe -k DcomLaunch -p -s LSM
                          1⤵
                            PID:952
                          • C:\Windows\system32\svchost.exe
                            C:\Windows\system32\svchost.exe -k RPCSS -p
                            1⤵
                              PID:900
                            • C:\Windows\system32\svchost.exe
                              C:\Windows\system32\svchost.exe -k netsvcs -p -s ProfSvc
                              1⤵
                                PID:1196
                              • C:\Windows\system32\fontdrvhost.exe
                                "fontdrvhost.exe"
                                1⤵
                                  PID:796
                                • C:\Windows\system32\svchost.exe
                                  C:\Windows\system32\svchost.exe -k DcomLaunch -p
                                  1⤵
                                    PID:780
                                    • C:\Windows\system32\DllHost.exe
                                      C:\Windows\system32\DllHost.exe /Processid:{3EB3C877-1F16-487C-9050-104DBCD66683}
                                      2⤵
                                        PID:3384
                                      • C:\Windows\System32\RuntimeBroker.exe
                                        C:\Windows\System32\RuntimeBroker.exe -Embedding
                                        2⤵
                                          PID:3552
                                        • C:\Windows\SystemApps\Microsoft.Windows.Search_cw5n1h2txyewy\SearchApp.exe
                                          "C:\Windows\SystemApps\Microsoft.Windows.Search_cw5n1h2txyewy\SearchApp.exe" -ServerName:CortanaUI.AppX8z9r6jm96hw4bsbneegw0kyxx296wr9t.mca
                                          2⤵
                                            PID:3640
                                          • C:\Windows\SystemApps\Microsoft.Windows.StartMenuExperienceHost_cw5n1h2txyewy\StartMenuExperienceHost.exe
                                            "C:\Windows\SystemApps\Microsoft.Windows.StartMenuExperienceHost_cw5n1h2txyewy\StartMenuExperienceHost.exe" -ServerName:App.AppXywbrabmsek0gm3tkwpr5kwzbs55tkqay.mca
                                            2⤵
                                              PID:3488
                                            • C:\Windows\System32\RuntimeBroker.exe
                                              C:\Windows\System32\RuntimeBroker.exe -Embedding
                                              2⤵
                                                PID:3796
                                              • C:\Windows\system32\DllHost.exe
                                                C:\Windows\system32\DllHost.exe /Processid:{3EB3C877-1F16-487C-9050-104DBCD66683}
                                                2⤵
                                                  PID:4264
                                                • C:\Windows\System32\RuntimeBroker.exe
                                                  C:\Windows\System32\RuntimeBroker.exe -Embedding
                                                  2⤵
                                                    PID:4680
                                                  • C:\Windows\system32\wbem\wmiprvse.exe
                                                    C:\Windows\system32\wbem\wmiprvse.exe
                                                    2⤵
                                                      PID:644
                                                    • C:\Windows\system32\SppExtComObj.exe
                                                      C:\Windows\system32\SppExtComObj.exe -Embedding
                                                      2⤵
                                                        PID:3992
                                                      • C:\Windows\System32\RuntimeBroker.exe
                                                        C:\Windows\System32\RuntimeBroker.exe -Embedding
                                                        2⤵
                                                          PID:4720
                                                      • C:\Windows\system32\svchost.exe
                                                        C:\Windows\system32\svchost.exe -k LocalService -p -s DispBrokerDesktopSvc
                                                        1⤵
                                                          PID:1212
                                                        • C:\Windows\System32\svchost.exe
                                                          C:\Windows\System32\svchost.exe -k LocalServiceNetworkRestricted -p -s EventLog
                                                          1⤵
                                                            PID:1228
                                                          • C:\Windows\system32\svchost.exe
                                                            C:\Windows\system32\svchost.exe -k netsvcs -p -s UserManager
                                                            1⤵
                                                              PID:1384
                                                              • C:\Windows\system32\sihost.exe
                                                                sihost.exe
                                                                2⤵
                                                                  PID:2388
                                                              • C:\Windows\System32\svchost.exe
                                                                C:\Windows\System32\svchost.exe -k netsvcs -p -s Themes
                                                                1⤵
                                                                  PID:1460
                                                                • C:\Windows\system32\svchost.exe
                                                                  C:\Windows\system32\svchost.exe -k LocalService -p -s EventSystem
                                                                  1⤵
                                                                    PID:1468
                                                                  • C:\Windows\system32\svchost.exe
                                                                    C:\Windows\system32\svchost.exe -k LocalServiceNetworkRestricted -p -s Dhcp
                                                                    1⤵
                                                                      PID:1500
                                                                    • C:\Windows\System32\svchost.exe
                                                                      C:\Windows\System32\svchost.exe -k NetworkService -p -s NlaSvc
                                                                      1⤵
                                                                        PID:1616
                                                                      • C:\Windows\System32\svchost.exe
                                                                        C:\Windows\System32\svchost.exe -k LocalSystemNetworkRestricted -p -s AudioEndpointBuilder
                                                                        1⤵
                                                                          PID:1680
                                                                        • C:\Windows\system32\svchost.exe
                                                                          C:\Windows\system32\svchost.exe -k LocalService -p -s FontCache
                                                                          1⤵
                                                                            PID:1692
                                                                          • C:\Windows\System32\svchost.exe
                                                                            C:\Windows\System32\svchost.exe -k LocalService -p -s netprofm
                                                                            1⤵
                                                                              PID:1780
                                                                            • C:\Windows\System32\svchost.exe
                                                                              C:\Windows\System32\svchost.exe -k LocalServiceNetworkRestricted -p
                                                                              1⤵
                                                                                PID:1792
                                                                              • 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:1924
                                                                                  • C:\Windows\system32\svchost.exe
                                                                                    C:\Windows\system32\svchost.exe -k appmodel -p -s StateRepository
                                                                                    1⤵
                                                                                      PID:2016
                                                                                    • C:\Windows\System32\spoolsv.exe
                                                                                      C:\Windows\System32\spoolsv.exe
                                                                                      1⤵
                                                                                        PID:1672
                                                                                      • C:\Windows\System32\svchost.exe
                                                                                        C:\Windows\System32\svchost.exe -k LocalServiceNetworkRestricted -s RmSvc
                                                                                        1⤵
                                                                                          PID:1884
                                                                                        • C:\Windows\system32\svchost.exe
                                                                                          C:\Windows\system32\svchost.exe -k LocalServiceNoNetworkFirewall -p
                                                                                          1⤵
                                                                                            PID:2148
                                                                                          • C:\Windows\System32\svchost.exe
                                                                                            C:\Windows\System32\svchost.exe -k NetworkService -p -s LanmanWorkstation
                                                                                            1⤵
                                                                                              PID:2216
                                                                                            • C:\Windows\System32\svchost.exe
                                                                                              C:\Windows\System32\svchost.exe -k netsvcs -p -s ShellHWDetection
                                                                                              1⤵
                                                                                                PID:1976
                                                                                              • C:\Windows\system32\svchost.exe
                                                                                                C:\Windows\system32\svchost.exe -k UnistackSvcGroup -s CDPUserSvc
                                                                                                1⤵
                                                                                                  PID:2396
                                                                                                • C:\Windows\system32\svchost.exe
                                                                                                  C:\Windows\system32\svchost.exe -k netsvcs -p -s SENS
                                                                                                  1⤵
                                                                                                    PID:1608
                                                                                                  • C:\Windows\system32\svchost.exe
                                                                                                    C:\Windows\system32\svchost.exe -k NetworkServiceNetworkRestricted -p -s PolicyAgent
                                                                                                    1⤵
                                                                                                      PID:2452
                                                                                                    • C:\Windows\system32\svchost.exe
                                                                                                      C:\Windows\system32\svchost.exe -k netsvcs -p -s IKEEXT
                                                                                                      1⤵
                                                                                                        PID:2460
                                                                                                      • C:\Windows\system32\svchost.exe
                                                                                                        C:\Windows\system32\svchost.exe -k NetworkService -p -s CryptSvc
                                                                                                        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:2588
                                                                                                          • C:\Windows\system32\svchost.exe
                                                                                                            C:\Windows\system32\svchost.exe -k netsvcs -p -s LanmanServer
                                                                                                            1⤵
                                                                                                              PID:2652
                                                                                                            • C:\Windows\System32\svchost.exe
                                                                                                              C:\Windows\System32\svchost.exe -k LocalSystemNetworkRestricted -p -s TrkWks
                                                                                                              1⤵
                                                                                                                PID:2696
                                                                                                              • C:\Windows\system32\svchost.exe
                                                                                                                C:\Windows\system32\svchost.exe -k ClipboardSvcGroup -p -s cbdhsvc
                                                                                                                1⤵
                                                                                                                  PID:3188
                                                                                                                • C:\Windows\Explorer.EXE
                                                                                                                  C:\Windows\Explorer.EXE
                                                                                                                  1⤵
                                                                                                                    PID:2644
                                                                                                                    • C:\Users\Admin\AppData\Local\Temp\33704a16a7c11012e32c350b470bf41ca7de3ec8447270f3875ef977de759b48.exe
                                                                                                                      "C:\Users\Admin\AppData\Local\Temp\33704a16a7c11012e32c350b470bf41ca7de3ec8447270f3875ef977de759b48.exe"
                                                                                                                      2⤵
                                                                                                                      • Modifies WinLogon for persistence
                                                                                                                      • Modifies firewall policy service
                                                                                                                      • Modifies visibility of file extensions in Explorer
                                                                                                                      • Modifies visiblity of hidden/system files in Explorer
                                                                                                                      • Disables RegEdit via registry modification
                                                                                                                      • Disables cmd.exe use via registry modification
                                                                                                                      • Adds Run key to start application
                                                                                                                      • Drops file in Windows directory
                                                                                                                      • Suspicious behavior: EnumeratesProcesses
                                                                                                                      • Suspicious behavior: MapViewOfSection
                                                                                                                      • Suspicious use of AdjustPrivilegeToken
                                                                                                                      • Suspicious use of SetWindowsHookEx
                                                                                                                      • Suspicious use of WriteProcessMemory
                                                                                                                      PID:4892
                                                                                                                      • C:\Windows\SysWOW64\WerFault.exe
                                                                                                                        C:\Windows\SysWOW64\WerFault.exe -u -p 4892 -s 1520
                                                                                                                        3⤵
                                                                                                                        • Program crash
                                                                                                                        PID:2368
                                                                                                                  • C:\Windows\system32\svchost.exe
                                                                                                                    C:\Windows\system32\svchost.exe -k netsvcs -p -s WpnService
                                                                                                                    1⤵
                                                                                                                      PID:2720
                                                                                                                    • C:\Windows\system32\svchost.exe
                                                                                                                      C:\Windows\system32\svchost.exe -k netsvcs -p -s Winmgmt
                                                                                                                      1⤵
                                                                                                                        PID:2704
                                                                                                                      • C:\Windows\system32\svchost.exe
                                                                                                                        C:\Windows\system32\svchost.exe -k LocalService -p -s nsi
                                                                                                                        1⤵
                                                                                                                          PID:1368
                                                                                                                        • C:\Windows\System32\svchost.exe
                                                                                                                          C:\Windows\System32\svchost.exe -k netsvcs -p
                                                                                                                          1⤵
                                                                                                                            PID:5112
                                                                                                                          • C:\Windows\System32\svchost.exe
                                                                                                                            C:\Windows\System32\svchost.exe -k LocalService -p -s LicenseManager
                                                                                                                            1⤵
                                                                                                                              PID:4216
                                                                                                                            • C:\Windows\system32\svchost.exe
                                                                                                                              C:\Windows\system32\svchost.exe -k netsvcs -p -s wlidsvc
                                                                                                                              1⤵
                                                                                                                                PID:4244
                                                                                                                              • C:\Windows\System32\svchost.exe
                                                                                                                                C:\Windows\System32\svchost.exe -k LocalSystemNetworkRestricted -p -s StorSvc
                                                                                                                                1⤵
                                                                                                                                  PID:4504
                                                                                                                                • C:\Windows\system32\svchost.exe
                                                                                                                                  C:\Windows\system32\svchost.exe -k LocalServiceNetworkRestricted -p -s WinHttpAutoProxySvc
                                                                                                                                  1⤵
                                                                                                                                    PID:700
                                                                                                                                  • C:\Windows\system32\svchost.exe
                                                                                                                                    C:\Windows\system32\svchost.exe -k LocalService -p -s CDPSvc
                                                                                                                                    1⤵
                                                                                                                                      PID:4772
                                                                                                                                    • C:\Windows\system32\svchost.exe
                                                                                                                                      C:\Windows\system32\svchost.exe -k LocalService -s W32Time
                                                                                                                                      1⤵
                                                                                                                                        PID:2256
                                                                                                                                      • C:\Windows\SysWOW64\WerFault.exe
                                                                                                                                        C:\Windows\SysWOW64\WerFault.exe -pss -s 408 -p 4892 -ip 4892
                                                                                                                                        1⤵
                                                                                                                                          PID:3724

                                                                                                                                        Network

                                                                                                                                        MITRE ATT&CK Enterprise v6

                                                                                                                                        Replay Monitor

                                                                                                                                        Loading Replay Monitor...

                                                                                                                                        Downloads

                                                                                                                                        • memory/4892-132-0x0000000000400000-0x0000000000445000-memory.dmp

                                                                                                                                          Filesize

                                                                                                                                          276KB

                                                                                                                                        • memory/4892-135-0x0000000000400000-0x0000000000445000-memory.dmp

                                                                                                                                          Filesize

                                                                                                                                          276KB

                                                                                                                                        • memory/4892-136-0x0000000000400000-0x0000000000445000-memory.dmp

                                                                                                                                          Filesize

                                                                                                                                          276KB