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Analysis

  • max time kernel
    94s
  • max time network
    96s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20241007-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system
  • submitted
    02/01/2025, 01:22

General

  • Target

    4bfb82e4377cef81939ee33f12dbf3e45e8bbdf4fde3966b0576da1712512c0eN.dll

  • Size

    1.3MB

  • MD5

    a144334228809a0b969104fc9fbcebb0

  • SHA1

    3be701d9782bdb34fd324b70c1382ba587040833

  • SHA256

    4bfb82e4377cef81939ee33f12dbf3e45e8bbdf4fde3966b0576da1712512c0e

  • SHA512

    0562a77168a1d1b7292632c9ec4842adce02fcaf7ce8e34d709bc7dc86702c85574985ff3e78f8d780a0a437e58777c8e4e4af05e2c305403b976547ec107cc1

  • SSDEEP

    12288:Y9g8GZHpzAac5naAd25L5O+FQ7lW8lZ60ICPxaf6og38BfSH6gqrandxT+is3pjn:Y68+O6pvbt/wuzTB2OFi1u

Malware Config

Signatures

  • Modifies firewall policy service 3 TTPs 4 IoCs
  • Ramnit

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

  • Ramnit family
  • Drops file in Drivers directory 1 IoCs
  • Executes dropped EXE 1 IoCs
  • Drops file in System32 directory 1 IoCs
  • UPX packed file 7 IoCs

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

  • Drops file in Program Files directory 3 IoCs
  • Program crash 2 IoCs
  • System Location Discovery: System Language Discovery 1 TTPs 2 IoCs

    Attempt gather information about the system language of a victim in order to infer the geographical location of that host.

  • Suspicious behavior: EnumeratesProcesses 2 IoCs
  • Suspicious behavior: MapViewOfSection 64 IoCs
  • Suspicious use of AdjustPrivilegeToken 1 IoCs
  • Suspicious use of UnmapMainImage 1 IoCs
  • Suspicious use of WriteProcessMemory 64 IoCs

Processes

  • C:\Windows\system32\winlogon.exe
    winlogon.exe
    1⤵
      PID:632
      • C:\Windows\system32\fontdrvhost.exe
        "fontdrvhost.exe"
        2⤵
          PID:816
        • C:\Windows\system32\dwm.exe
          "dwm.exe"
          2⤵
            PID:412
        • C:\Windows\system32\lsass.exe
          C:\Windows\system32\lsass.exe
          1⤵
            PID:688
          • C:\Windows\system32\svchost.exe
            C:\Windows\system32\svchost.exe -k DcomLaunch -p
            1⤵
              PID:804
              • C:\Windows\system32\wbem\unsecapp.exe
                C:\Windows\system32\wbem\unsecapp.exe -Embedding
                2⤵
                  PID:2992
                • C:\Windows\system32\DllHost.exe
                  C:\Windows\system32\DllHost.exe /Processid:{3EB3C877-1F16-487C-9050-104DBCD66683}
                  2⤵
                    PID:3748
                  • C:\Windows\SystemApps\Microsoft.Windows.StartMenuExperienceHost_cw5n1h2txyewy\StartMenuExperienceHost.exe
                    "C:\Windows\SystemApps\Microsoft.Windows.StartMenuExperienceHost_cw5n1h2txyewy\StartMenuExperienceHost.exe" -ServerName:App.AppXywbrabmsek0gm3tkwpr5kwzbs55tkqay.mca
                    2⤵
                      PID:3880
                    • C:\Windows\System32\RuntimeBroker.exe
                      C:\Windows\System32\RuntimeBroker.exe -Embedding
                      2⤵
                        PID:3940
                      • C:\Windows\SystemApps\Microsoft.Windows.Search_cw5n1h2txyewy\SearchApp.exe
                        "C:\Windows\SystemApps\Microsoft.Windows.Search_cw5n1h2txyewy\SearchApp.exe" -ServerName:CortanaUI.AppX8z9r6jm96hw4bsbneegw0kyxx296wr9t.mca
                        2⤵
                          PID:4024
                        • C:\Windows\System32\RuntimeBroker.exe
                          C:\Windows\System32\RuntimeBroker.exe -Embedding
                          2⤵
                            PID:2244
                          • C:\Windows\system32\SppExtComObj.exe
                            C:\Windows\system32\SppExtComObj.exe -Embedding
                            2⤵
                              PID:3792
                            • C:\Windows\system32\DllHost.exe
                              C:\Windows\system32\DllHost.exe /Processid:{3EB3C877-1F16-487C-9050-104DBCD66683}
                              2⤵
                                PID:4348
                              • C:\Windows\SystemApps\MicrosoftWindows.Client.CBS_cw5n1h2txyewy\InputApp\TextInputHost.exe
                                "C:\Windows\SystemApps\MicrosoftWindows.Client.CBS_cw5n1h2txyewy\InputApp\TextInputHost.exe" -ServerName:InputApp.AppX9jnwykgrccxc8by3hsrsh07r423xzvav.mca
                                2⤵
                                  PID:3664
                                • C:\Windows\System32\RuntimeBroker.exe
                                  C:\Windows\System32\RuntimeBroker.exe -Embedding
                                  2⤵
                                    PID:556
                                  • C:\Windows\system32\backgroundTaskHost.exe
                                    "C:\Windows\system32\backgroundTaskHost.exe" -ServerName:App.AppXmtcan0h2tfbfy7k9kn8hbxb6dmzz1zh0.mca
                                    2⤵
                                      PID:4320
                                  • C:\Windows\system32\fontdrvhost.exe
                                    "fontdrvhost.exe"
                                    1⤵
                                      PID:824
                                    • C:\Windows\system32\svchost.exe
                                      C:\Windows\system32\svchost.exe -k RPCSS -p
                                      1⤵
                                        PID:916
                                      • C:\Windows\system32\svchost.exe
                                        C:\Windows\system32\svchost.exe -k DcomLaunch -p -s LSM
                                        1⤵
                                          PID:972
                                        • C:\Windows\system32\svchost.exe
                                          C:\Windows\system32\svchost.exe -k netsvcs -p -s gpsvc
                                          1⤵
                                            PID:408
                                          • C:\Windows\System32\svchost.exe
                                            C:\Windows\System32\svchost.exe -k LocalServiceNetworkRestricted -p -s lmhosts
                                            1⤵
                                              PID:384
                                            • C:\Windows\system32\svchost.exe
                                              C:\Windows\system32\svchost.exe -k LocalServiceNoNetwork -p
                                              1⤵
                                                PID:1052
                                              • C:\Windows\System32\svchost.exe
                                                C:\Windows\System32\svchost.exe -k LocalSystemNetworkRestricted -p -s NcbService
                                                1⤵
                                                  PID:1112
                                                • C:\Windows\system32\svchost.exe
                                                  C:\Windows\system32\svchost.exe -k LocalServiceNetworkRestricted -p -s TimeBrokerSvc
                                                  1⤵
                                                    PID:1128
                                                  • C:\Windows\system32\svchost.exe
                                                    C:\Windows\system32\svchost.exe -k netsvcs -p -s Schedule
                                                    1⤵
                                                      PID:1144
                                                      • C:\Windows\system32\taskhostw.exe
                                                        taskhostw.exe {222A245B-E637-4AE9-A93F-A59CA119A75E}
                                                        2⤵
                                                          PID:432
                                                        • C:\Windows\system32\MusNotification.exe
                                                          C:\Windows\system32\MusNotification.exe
                                                          2⤵
                                                            PID:1344
                                                        • C:\Windows\System32\svchost.exe
                                                          C:\Windows\System32\svchost.exe -k LocalServiceNetworkRestricted -p -s EventLog
                                                          1⤵
                                                            PID:1160
                                                          • C:\Windows\system32\svchost.exe
                                                            C:\Windows\system32\svchost.exe -k netsvcs -p -s ProfSvc
                                                            1⤵
                                                              PID:1236
                                                            • C:\Windows\system32\svchost.exe
                                                              C:\Windows\system32\svchost.exe -k LocalService -p -s DispBrokerDesktopSvc
                                                              1⤵
                                                                PID:1320
                                                              • C:\Windows\system32\svchost.exe
                                                                C:\Windows\system32\svchost.exe -k LocalService -p -s nsi
                                                                1⤵
                                                                  PID:1372
                                                                • 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:2980
                                                                    • C:\Windows\system32\svchost.exe
                                                                      C:\Windows\system32\svchost.exe -k LocalServiceNetworkRestricted -p -s Dhcp
                                                                      1⤵
                                                                        PID:1452
                                                                      • C:\Windows\System32\svchost.exe
                                                                        C:\Windows\System32\svchost.exe -k netsvcs -p -s Themes
                                                                        1⤵
                                                                          PID:1568
                                                                        • C:\Windows\system32\svchost.exe
                                                                          C:\Windows\system32\svchost.exe -k LocalService -p -s EventSystem
                                                                          1⤵
                                                                            PID:1580
                                                                          • C:\Windows\System32\svchost.exe
                                                                            C:\Windows\System32\svchost.exe -k NetworkService -p -s NlaSvc
                                                                            1⤵
                                                                              PID:1660
                                                                            • C:\Windows\system32\svchost.exe
                                                                              C:\Windows\system32\svchost.exe -k netsvcs -p -s SENS
                                                                              1⤵
                                                                                PID:1712
                                                                              • C:\Windows\System32\svchost.exe
                                                                                C:\Windows\System32\svchost.exe -k LocalSystemNetworkRestricted -p -s AudioEndpointBuilder
                                                                                1⤵
                                                                                  PID:1752
                                                                                • C:\Windows\System32\svchost.exe
                                                                                  C:\Windows\System32\svchost.exe -k LocalService -p -s netprofm
                                                                                  1⤵
                                                                                    PID:1808
                                                                                  • C:\Windows\System32\svchost.exe
                                                                                    C:\Windows\System32\svchost.exe -k LocalServiceNetworkRestricted -p
                                                                                    1⤵
                                                                                      PID:1828
                                                                                    • C:\Windows\system32\svchost.exe
                                                                                      C:\Windows\system32\svchost.exe -k appmodel -p -s StateRepository
                                                                                      1⤵
                                                                                        PID:1944
                                                                                      • C:\Windows\system32\svchost.exe
                                                                                        C:\Windows\system32\svchost.exe -k NetworkService -p -s Dnscache
                                                                                        1⤵
                                                                                          PID:1952
                                                                                        • C:\Windows\System32\svchost.exe
                                                                                          C:\Windows\System32\svchost.exe -k LocalServiceNetworkRestricted -p
                                                                                          1⤵
                                                                                            PID:1960
                                                                                          • C:\Windows\System32\svchost.exe
                                                                                            C:\Windows\System32\svchost.exe -k netsvcs -p -s ShellHWDetection
                                                                                            1⤵
                                                                                              PID:1016
                                                                                            • C:\Windows\System32\spoolsv.exe
                                                                                              C:\Windows\System32\spoolsv.exe
                                                                                              1⤵
                                                                                                PID:2060
                                                                                              • C:\Windows\system32\svchost.exe
                                                                                                C:\Windows\system32\svchost.exe -k LocalServiceNoNetworkFirewall -p
                                                                                                1⤵
                                                                                                  PID:2112
                                                                                                • C:\Windows\System32\svchost.exe
                                                                                                  C:\Windows\System32\svchost.exe -k NetworkService -p -s LanmanWorkstation
                                                                                                  1⤵
                                                                                                    PID:2124
                                                                                                  • C:\Windows\system32\svchost.exe
                                                                                                    C:\Windows\system32\svchost.exe -k netsvcs -p -s Winmgmt
                                                                                                    1⤵
                                                                                                      PID:2220
                                                                                                    • C:\Windows\System32\svchost.exe
                                                                                                      C:\Windows\System32\svchost.exe -k LocalServiceNetworkRestricted -s RmSvc
                                                                                                      1⤵
                                                                                                        PID:2272
                                                                                                      • C:\Windows\system32\svchost.exe
                                                                                                        C:\Windows\system32\svchost.exe -k netsvcs -p -s IKEEXT
                                                                                                        1⤵
                                                                                                          PID:2412
                                                                                                        • C:\Windows\system32\svchost.exe
                                                                                                          C:\Windows\system32\svchost.exe -k NetworkServiceNetworkRestricted -p -s PolicyAgent
                                                                                                          1⤵
                                                                                                            PID:2420
                                                                                                          • C:\Windows\system32\svchost.exe
                                                                                                            C:\Windows\system32\svchost.exe -k NetworkService -p -s CryptSvc
                                                                                                            1⤵
                                                                                                              PID:2488
                                                                                                            • C:\Windows\system32\svchost.exe
                                                                                                              C:\Windows\system32\svchost.exe -k netsvcs -p -s LanmanServer
                                                                                                              1⤵
                                                                                                                PID:2556
                                                                                                              • C:\Windows\sysmon.exe
                                                                                                                C:\Windows\sysmon.exe
                                                                                                                1⤵
                                                                                                                  PID:2588
                                                                                                                • C:\Windows\System32\svchost.exe
                                                                                                                  C:\Windows\System32\svchost.exe -k LocalSystemNetworkRestricted -p -s TrkWks
                                                                                                                  1⤵
                                                                                                                    PID:2632
                                                                                                                  • C:\Windows\system32\svchost.exe
                                                                                                                    C:\Windows\system32\svchost.exe -k netsvcs -p -s WpnService
                                                                                                                    1⤵
                                                                                                                      PID:2648
                                                                                                                    • C:\Windows\system32\svchost.exe
                                                                                                                      C:\Windows\system32\svchost.exe -k UnistackSvcGroup -s CDPUserSvc
                                                                                                                      1⤵
                                                                                                                        PID:3052
                                                                                                                      • C:\Windows\system32\svchost.exe
                                                                                                                        C:\Windows\system32\svchost.exe -k netsvcs -p -s TokenBroker
                                                                                                                        1⤵
                                                                                                                          PID:3192
                                                                                                                        • C:\Windows\system32\svchost.exe
                                                                                                                          C:\Windows\system32\svchost.exe -k LocalService -p -s CDPSvc
                                                                                                                          1⤵
                                                                                                                            PID:3352
                                                                                                                          • C:\Windows\Explorer.EXE
                                                                                                                            C:\Windows\Explorer.EXE
                                                                                                                            1⤵
                                                                                                                              PID:3456
                                                                                                                              • C:\Windows\system32\rundll32.exe
                                                                                                                                rundll32.exe C:\Users\Admin\AppData\Local\Temp\4bfb82e4377cef81939ee33f12dbf3e45e8bbdf4fde3966b0576da1712512c0eN.dll,#1
                                                                                                                                2⤵
                                                                                                                                • Suspicious use of WriteProcessMemory
                                                                                                                                PID:1180
                                                                                                                                • C:\Windows\SysWOW64\rundll32.exe
                                                                                                                                  rundll32.exe C:\Users\Admin\AppData\Local\Temp\4bfb82e4377cef81939ee33f12dbf3e45e8bbdf4fde3966b0576da1712512c0eN.dll,#1
                                                                                                                                  3⤵
                                                                                                                                  • Modifies firewall policy service
                                                                                                                                  • Drops file in Drivers directory
                                                                                                                                  • Drops file in System32 directory
                                                                                                                                  • System Location Discovery: System Language Discovery
                                                                                                                                  • Suspicious use of WriteProcessMemory
                                                                                                                                  PID:2456
                                                                                                                                  • C:\Windows\SysWOW64\rundll32mgr.exe
                                                                                                                                    C:\Windows\SysWOW64\rundll32mgr.exe
                                                                                                                                    4⤵
                                                                                                                                    • Executes dropped EXE
                                                                                                                                    • Drops file in Program Files directory
                                                                                                                                    • System Location Discovery: System Language Discovery
                                                                                                                                    • Suspicious behavior: EnumeratesProcesses
                                                                                                                                    • Suspicious behavior: MapViewOfSection
                                                                                                                                    • Suspicious use of AdjustPrivilegeToken
                                                                                                                                    • Suspicious use of UnmapMainImage
                                                                                                                                    • Suspicious use of WriteProcessMemory
                                                                                                                                    PID:3988
                                                                                                                                    • C:\Windows\SysWOW64\WerFault.exe
                                                                                                                                      C:\Windows\SysWOW64\WerFault.exe -u -p 3988 -s 424
                                                                                                                                      5⤵
                                                                                                                                      • Program crash
                                                                                                                                      PID:4628
                                                                                                                                  • C:\Windows\SysWOW64\WerFault.exe
                                                                                                                                    C:\Windows\SysWOW64\WerFault.exe -u -p 2456 -s 612
                                                                                                                                    4⤵
                                                                                                                                    • Program crash
                                                                                                                                    PID:3392
                                                                                                                            • C:\Windows\system32\svchost.exe
                                                                                                                              C:\Windows\system32\svchost.exe -k ClipboardSvcGroup -p -s cbdhsvc
                                                                                                                              1⤵
                                                                                                                                PID:3556
                                                                                                                              • C:\Windows\system32\svchost.exe
                                                                                                                                C:\Windows\system32\svchost.exe -k netsvcs -p -s wlidsvc
                                                                                                                                1⤵
                                                                                                                                  PID:4456
                                                                                                                                • C:\Windows\System32\svchost.exe
                                                                                                                                  C:\Windows\System32\svchost.exe -k LocalSystemNetworkRestricted -p -s StorSvc
                                                                                                                                  1⤵
                                                                                                                                    PID:3032
                                                                                                                                  • C:\Windows\system32\svchost.exe
                                                                                                                                    C:\Windows\system32\svchost.exe -k LocalServiceAndNoImpersonation -p -s SSDPSRV
                                                                                                                                    1⤵
                                                                                                                                      PID:1092
                                                                                                                                    • C:\Windows\system32\svchost.exe
                                                                                                                                      C:\Windows\system32\svchost.exe -k LocalServiceNetworkRestricted -p -s WinHttpAutoProxySvc
                                                                                                                                      1⤵
                                                                                                                                        PID:4932
                                                                                                                                      • C:\Windows\System32\svchost.exe
                                                                                                                                        C:\Windows\System32\svchost.exe -k LocalService -p -s LicenseManager
                                                                                                                                        1⤵
                                                                                                                                          PID:5096
                                                                                                                                        • C:\Program Files\Common Files\Microsoft Shared\ClickToRun\OfficeClickToRun.exe
                                                                                                                                          "C:\Program Files\Common Files\Microsoft Shared\ClickToRun\OfficeClickToRun.exe" /service
                                                                                                                                          1⤵
                                                                                                                                            PID:3204
                                                                                                                                          • C:\Windows\system32\svchost.exe
                                                                                                                                            C:\Windows\system32\svchost.exe -k LocalServiceNetworkRestricted -p -s NgcCtnrSvc
                                                                                                                                            1⤵
                                                                                                                                              PID:2000
                                                                                                                                            • C:\Windows\System32\svchost.exe
                                                                                                                                              C:\Windows\System32\svchost.exe -k WerSvcGroup
                                                                                                                                              1⤵
                                                                                                                                                PID:5088
                                                                                                                                                • C:\Windows\SysWOW64\WerFault.exe
                                                                                                                                                  C:\Windows\SysWOW64\WerFault.exe -pss -s 420 -p 2456 -ip 2456
                                                                                                                                                  2⤵
                                                                                                                                                    PID:4852
                                                                                                                                                  • C:\Windows\SysWOW64\WerFault.exe
                                                                                                                                                    C:\Windows\SysWOW64\WerFault.exe -pss -s 468 -p 3988 -ip 3988
                                                                                                                                                    2⤵
                                                                                                                                                      PID:3300

                                                                                                                                                  Network

                                                                                                                                                  MITRE ATT&CK Enterprise v15

                                                                                                                                                  Replay Monitor

                                                                                                                                                  Loading Replay Monitor...

                                                                                                                                                  Downloads

                                                                                                                                                  • C:\Windows\SysWOW64\rundll32mgr.exe

                                                                                                                                                    Filesize

                                                                                                                                                    112KB

                                                                                                                                                    MD5

                                                                                                                                                    787f5a2f9878eecd525f0ca2f7f71749

                                                                                                                                                    SHA1

                                                                                                                                                    c0da1509885c34f2f40f6f557a366bba00d767b3

                                                                                                                                                    SHA256

                                                                                                                                                    a96ea157adae6d6e44274d0b27a68074e24afd21973123dbacf1e5325aeb4438

                                                                                                                                                    SHA512

                                                                                                                                                    306c9b2ce87ed7e5c8c7dd557927811bfe65dd49ae735a007e8189024376c5192bc5ef879a26d32e718746cc93b8343d05b6515c0a63fc85860a614dbb5b090d

                                                                                                                                                  • memory/2456-27-0x0000000010000000-0x0000000010147000-memory.dmp

                                                                                                                                                    Filesize

                                                                                                                                                    1.3MB

                                                                                                                                                  • memory/2456-11-0x000000007F140000-0x000000007F14A000-memory.dmp

                                                                                                                                                    Filesize

                                                                                                                                                    40KB

                                                                                                                                                  • memory/2456-10-0x00000000779F3000-0x00000000779F4000-memory.dmp

                                                                                                                                                    Filesize

                                                                                                                                                    4KB

                                                                                                                                                  • memory/2456-8-0x00000000779F2000-0x00000000779F3000-memory.dmp

                                                                                                                                                    Filesize

                                                                                                                                                    4KB

                                                                                                                                                  • memory/2456-9-0x000000007F140000-0x000000007F14A000-memory.dmp

                                                                                                                                                    Filesize

                                                                                                                                                    40KB

                                                                                                                                                  • memory/2456-25-0x000000007F140000-0x000000007F14A000-memory.dmp

                                                                                                                                                    Filesize

                                                                                                                                                    40KB

                                                                                                                                                  • memory/2456-0-0x0000000010000000-0x0000000010147000-memory.dmp

                                                                                                                                                    Filesize

                                                                                                                                                    1.3MB

                                                                                                                                                  • memory/2456-6-0x000000007F140000-0x000000007F14A000-memory.dmp

                                                                                                                                                    Filesize

                                                                                                                                                    40KB

                                                                                                                                                  • memory/3988-15-0x0000000000400000-0x0000000000421000-memory.dmp

                                                                                                                                                    Filesize

                                                                                                                                                    132KB

                                                                                                                                                  • memory/3988-18-0x0000000000A50000-0x0000000000A51000-memory.dmp

                                                                                                                                                    Filesize

                                                                                                                                                    4KB

                                                                                                                                                  • memory/3988-17-0x0000000000400000-0x0000000000421000-memory.dmp

                                                                                                                                                    Filesize

                                                                                                                                                    132KB

                                                                                                                                                  • memory/3988-14-0x0000000000400000-0x0000000000421000-memory.dmp

                                                                                                                                                    Filesize

                                                                                                                                                    132KB

                                                                                                                                                  • memory/3988-13-0x0000000000400000-0x0000000000421000-memory.dmp

                                                                                                                                                    Filesize

                                                                                                                                                    132KB

                                                                                                                                                  • memory/3988-21-0x0000000000400000-0x0000000000421000-memory.dmp

                                                                                                                                                    Filesize

                                                                                                                                                    132KB

                                                                                                                                                  • memory/3988-19-0x00000000779F3000-0x00000000779F4000-memory.dmp

                                                                                                                                                    Filesize

                                                                                                                                                    4KB

                                                                                                                                                  • memory/3988-23-0x0000000000400000-0x0000000000421000-memory.dmp

                                                                                                                                                    Filesize

                                                                                                                                                    132KB

                                                                                                                                                  • memory/3988-20-0x0000000000400000-0x0000000000421000-memory.dmp

                                                                                                                                                    Filesize

                                                                                                                                                    132KB

                                                                                                                                                  • memory/3988-12-0x00000000779F2000-0x00000000779F3000-memory.dmp

                                                                                                                                                    Filesize

                                                                                                                                                    4KB

                                                                                                                                                  • memory/3988-4-0x0000000000400000-0x0000000000426000-memory.dmp

                                                                                                                                                    Filesize

                                                                                                                                                    152KB