Analysis

  • max time kernel
    14s
  • max time network
    17s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20220812-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20220812-enlocale:en-usos:windows10-2004-x64system
  • submitted
    29/11/2022, 07:34

General

  • Target

    fb23a49817bffc0851ef3a1186414a5434e0fce90788be1bfba0fde8969f833b.dll

  • Size

    321KB

  • MD5

    09b0f54b3f2c2674ce9f2adfedd166b0

  • SHA1

    8f0e7f2287f39382bb5aea88f6ff3fbb0bae3fa0

  • SHA256

    fb23a49817bffc0851ef3a1186414a5434e0fce90788be1bfba0fde8969f833b

  • SHA512

    188428f80f4fbeb9aec130d8d9f6a4a9d5d276a4bbeb3963a2a03c8fb7df62b8847844f1e495b70577794d756e381f85095b1b9a7a2cba8074faadcef8e8926a

  • SSDEEP

    6144:1is9PaG1wvxJaNxqcucvCN6RMYRBKgrFZpXBzXpEeq:Ys9SG16xJavqhcvCNYMYRBTF/hmeq

Malware Config

Signatures

  • Modifies firewall policy service 2 TTPs 4 IoCs
  • Ramnit

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

  • Drops file in Drivers directory 1 IoCs
  • Executes dropped EXE 1 IoCs
  • UPX packed file 1 IoCs

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

  • Loads dropped DLL 1 IoCs
  • Drops file in System32 directory 1 IoCs
  • Program crash 2 IoCs
  • Suspicious behavior: EnumeratesProcesses 2 IoCs
  • Suspicious behavior: MapViewOfSection 64 IoCs
  • Suspicious use of AdjustPrivilegeToken 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:616
        • C:\Windows\system32\dwm.exe
          "dwm.exe"
          2⤵
            PID:384
          • C:\Windows\system32\fontdrvhost.exe
            "fontdrvhost.exe"
            2⤵
              PID:808
          • C:\Windows\system32\svchost.exe
            C:\Windows\system32\svchost.exe -k DcomLaunch -p
            1⤵
              PID:788
              • C:\Windows\system32\DllHost.exe
                C:\Windows\system32\DllHost.exe /Processid:{3EB3C877-1F16-487C-9050-104DBCD66683}
                2⤵
                  PID:3356
                • C:\Windows\SystemApps\Microsoft.Windows.StartMenuExperienceHost_cw5n1h2txyewy\StartMenuExperienceHost.exe
                  "C:\Windows\SystemApps\Microsoft.Windows.StartMenuExperienceHost_cw5n1h2txyewy\StartMenuExperienceHost.exe" -ServerName:App.AppXywbrabmsek0gm3tkwpr5kwzbs55tkqay.mca
                  2⤵
                    PID:3448
                  • C:\Windows\System32\RuntimeBroker.exe
                    C:\Windows\System32\RuntimeBroker.exe -Embedding
                    2⤵
                      PID:3512
                    • C:\Windows\SystemApps\Microsoft.Windows.Search_cw5n1h2txyewy\SearchApp.exe
                      "C:\Windows\SystemApps\Microsoft.Windows.Search_cw5n1h2txyewy\SearchApp.exe" -ServerName:CortanaUI.AppX8z9r6jm96hw4bsbneegw0kyxx296wr9t.mca
                      2⤵
                        PID:3608
                      • 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:4384
                          • C:\Windows\system32\SppExtComObj.exe
                            C:\Windows\system32\SppExtComObj.exe -Embedding
                            2⤵
                              PID:4996
                            • C:\Windows\System32\RuntimeBroker.exe
                              C:\Windows\System32\RuntimeBroker.exe -Embedding
                              2⤵
                                PID:4648
                            • 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 DcomLaunch -p -s LSM
                                1⤵
                                  PID:964
                                • C:\Windows\system32\svchost.exe
                                  C:\Windows\system32\svchost.exe -k netsvcs -p -s gpsvc
                                  1⤵
                                    PID:516
                                  • C:\Windows\System32\svchost.exe
                                    C:\Windows\System32\svchost.exe -k LocalServiceNetworkRestricted -p -s lmhosts
                                    1⤵
                                      PID:660
                                    • C:\Windows\system32\svchost.exe
                                      C:\Windows\system32\svchost.exe -k netsvcs -p -s Schedule
                                      1⤵
                                        PID:1136
                                        • C:\Windows\system32\taskhostw.exe
                                          taskhostw.exe {222A245B-E637-4AE9-A93F-A59CA119A75E}
                                          2⤵
                                            PID:2456
                                        • C:\Windows\system32\svchost.exe
                                          C:\Windows\system32\svchost.exe -k netsvcs -p -s ProfSvc
                                          1⤵
                                            PID:1204
                                          • C:\Windows\system32\svchost.exe
                                            C:\Windows\system32\svchost.exe -k LocalServiceNetworkRestricted -p -s TimeBrokerSvc
                                            1⤵
                                              PID:1064
                                            • C:\Windows\System32\svchost.exe
                                              C:\Windows\System32\svchost.exe -k LocalServiceNetworkRestricted -p -s EventLog
                                              1⤵
                                                PID:1256
                                              • C:\Windows\system32\svchost.exe
                                                C:\Windows\system32\svchost.exe -k LocalService -p -s DispBrokerDesktopSvc
                                                1⤵
                                                  PID:1276
                                                • C:\Windows\System32\svchost.exe
                                                  C:\Windows\System32\svchost.exe -k LocalSystemNetworkRestricted -p -s NcbService
                                                  1⤵
                                                    PID:1040
                                                  • C:\Windows\system32\svchost.exe
                                                    C:\Windows\system32\svchost.exe -k netsvcs -p -s UserManager
                                                    1⤵
                                                      PID:1332
                                                      • C:\Windows\system32\sihost.exe
                                                        sihost.exe
                                                        2⤵
                                                          PID:2352
                                                      • C:\Windows\system32\svchost.exe
                                                        C:\Windows\system32\svchost.exe -k LocalServiceNoNetwork -p
                                                        1⤵
                                                          PID:916
                                                        • C:\Windows\system32\svchost.exe
                                                          C:\Windows\system32\svchost.exe -k LocalService -p -s nsi
                                                          1⤵
                                                            PID:1380
                                                          • C:\Windows\system32\svchost.exe
                                                            C:\Windows\system32\svchost.exe -k LocalService -p -s EventSystem
                                                            1⤵
                                                              PID:1476
                                                            • C:\Windows\System32\svchost.exe
                                                              C:\Windows\System32\svchost.exe -k netsvcs -p -s Themes
                                                              1⤵
                                                                PID:1488
                                                              • C:\Windows\system32\svchost.exe
                                                                C:\Windows\system32\svchost.exe -k LocalServiceNetworkRestricted -p -s Dhcp
                                                                1⤵
                                                                  PID:1524
                                                                • C:\Windows\system32\svchost.exe
                                                                  C:\Windows\system32\svchost.exe -k netsvcs -p -s SENS
                                                                  1⤵
                                                                    PID:1596
                                                                  • C:\Windows\system32\fontdrvhost.exe
                                                                    "fontdrvhost.exe"
                                                                    1⤵
                                                                      PID:800
                                                                    • C:\Windows\System32\svchost.exe
                                                                      C:\Windows\System32\svchost.exe -k LocalSystemNetworkRestricted -p -s AudioEndpointBuilder
                                                                      1⤵
                                                                        PID:1616
                                                                      • C:\Windows\system32\svchost.exe
                                                                        C:\Windows\system32\svchost.exe -k LocalService -p -s FontCache
                                                                        1⤵
                                                                          PID:1632
                                                                        • C:\Windows\System32\svchost.exe
                                                                          C:\Windows\System32\svchost.exe -k NetworkService -p -s NlaSvc
                                                                          1⤵
                                                                            PID:1724
                                                                          • C:\Windows\System32\svchost.exe
                                                                            C:\Windows\System32\svchost.exe -k LocalServiceNetworkRestricted -p
                                                                            1⤵
                                                                              PID:1732
                                                                            • C:\Windows\System32\svchost.exe
                                                                              C:\Windows\System32\svchost.exe -k LocalService -p -s netprofm
                                                                              1⤵
                                                                                PID:1856
                                                                              • C:\Windows\system32\svchost.exe
                                                                                C:\Windows\system32\svchost.exe -k NetworkService -p -s Dnscache
                                                                                1⤵
                                                                                  PID:1904
                                                                                • C:\Windows\system32\svchost.exe
                                                                                  C:\Windows\system32\svchost.exe -k appmodel -p -s StateRepository
                                                                                  1⤵
                                                                                    PID:1932
                                                                                  • C:\Windows\System32\svchost.exe
                                                                                    C:\Windows\System32\svchost.exe -k LocalServiceNetworkRestricted -p
                                                                                    1⤵
                                                                                      PID:1896
                                                                                    • C:\Windows\System32\svchost.exe
                                                                                      C:\Windows\System32\svchost.exe -k netsvcs -p -s ShellHWDetection
                                                                                      1⤵
                                                                                        PID:1976
                                                                                      • C:\Windows\System32\spoolsv.exe
                                                                                        C:\Windows\System32\spoolsv.exe
                                                                                        1⤵
                                                                                          PID:1340
                                                                                        • C:\Windows\system32\svchost.exe
                                                                                          C:\Windows\system32\svchost.exe -k LocalServiceNoNetworkFirewall -p
                                                                                          1⤵
                                                                                            PID:1744
                                                                                          • C:\Windows\System32\svchost.exe
                                                                                            C:\Windows\System32\svchost.exe -k NetworkService -p -s LanmanWorkstation
                                                                                            1⤵
                                                                                              PID:1784
                                                                                            • C:\Windows\System32\svchost.exe
                                                                                              C:\Windows\System32\svchost.exe -k LocalServiceNetworkRestricted -s RmSvc
                                                                                              1⤵
                                                                                                PID:2128
                                                                                              • C:\Windows\system32\svchost.exe
                                                                                                C:\Windows\system32\svchost.exe -k UnistackSvcGroup -s CDPUserSvc
                                                                                                1⤵
                                                                                                  PID:2340
                                                                                                • C:\Windows\system32\svchost.exe
                                                                                                  C:\Windows\system32\svchost.exe -k netsvcs -p -s LanmanServer
                                                                                                  1⤵
                                                                                                    PID:2668
                                                                                                  • C:\Windows\system32\svchost.exe
                                                                                                    C:\Windows\system32\svchost.exe -k netsvcs -p -s Winmgmt
                                                                                                    1⤵
                                                                                                      PID:2692
                                                                                                    • C:\Windows\system32\svchost.exe
                                                                                                      C:\Windows\system32\svchost.exe -k netsvcs -p -s WpnService
                                                                                                      1⤵
                                                                                                        PID:2700
                                                                                                      • C:\Windows\System32\svchost.exe
                                                                                                        C:\Windows\System32\svchost.exe -k LocalSystemNetworkRestricted -p -s TrkWks
                                                                                                        1⤵
                                                                                                          PID:2676
                                                                                                        • C:\Program Files\Common Files\Microsoft Shared\ClickToRun\OfficeClickToRun.exe
                                                                                                          "C:\Program Files\Common Files\Microsoft Shared\ClickToRun\OfficeClickToRun.exe" /service
                                                                                                          1⤵
                                                                                                            PID:2600
                                                                                                          • C:\Windows\Explorer.EXE
                                                                                                            C:\Windows\Explorer.EXE
                                                                                                            1⤵
                                                                                                              PID:2688
                                                                                                              • C:\Windows\system32\rundll32.exe
                                                                                                                rundll32.exe C:\Users\Admin\AppData\Local\Temp\fb23a49817bffc0851ef3a1186414a5434e0fce90788be1bfba0fde8969f833b.dll,#1
                                                                                                                2⤵
                                                                                                                • Suspicious use of WriteProcessMemory
                                                                                                                PID:2732
                                                                                                                • C:\Windows\SysWOW64\rundll32.exe
                                                                                                                  rundll32.exe C:\Users\Admin\AppData\Local\Temp\fb23a49817bffc0851ef3a1186414a5434e0fce90788be1bfba0fde8969f833b.dll,#1
                                                                                                                  3⤵
                                                                                                                  • Modifies firewall policy service
                                                                                                                  • Drops file in Drivers directory
                                                                                                                  • Drops file in System32 directory
                                                                                                                  • Suspicious use of WriteProcessMemory
                                                                                                                  PID:2196
                                                                                                                  • C:\Windows\SysWOW64\rundll32mgr.exe
                                                                                                                    C:\Windows\SysWOW64\rundll32mgr.exe
                                                                                                                    4⤵
                                                                                                                    • Executes dropped EXE
                                                                                                                    • Loads dropped DLL
                                                                                                                    • Suspicious behavior: EnumeratesProcesses
                                                                                                                    • Suspicious behavior: MapViewOfSection
                                                                                                                    • Suspicious use of AdjustPrivilegeToken
                                                                                                                    • Suspicious use of WriteProcessMemory
                                                                                                                    PID:4356
                                                                                                                    • C:\Windows\SysWOW64\WerFault.exe
                                                                                                                      C:\Windows\SysWOW64\WerFault.exe -u -p 4356 -s 10244
                                                                                                                      5⤵
                                                                                                                      • Program crash
                                                                                                                      PID:4296
                                                                                                                  • C:\Windows\SysWOW64\WerFault.exe
                                                                                                                    C:\Windows\SysWOW64\WerFault.exe -u -p 2196 -s 608
                                                                                                                    4⤵
                                                                                                                    • Program crash
                                                                                                                    PID:1668
                                                                                                            • C:\Windows\system32\svchost.exe
                                                                                                              C:\Windows\system32\svchost.exe -k NetworkService -p -s CryptSvc
                                                                                                              1⤵
                                                                                                                PID:2592
                                                                                                              • C:\Windows\system32\svchost.exe
                                                                                                                C:\Windows\system32\svchost.exe -k ClipboardSvcGroup -p -s cbdhsvc
                                                                                                                1⤵
                                                                                                                  PID:3164
                                                                                                                • C:\Windows\system32\svchost.exe
                                                                                                                  C:\Windows\system32\svchost.exe -k netsvcs -p -s IKEEXT
                                                                                                                  1⤵
                                                                                                                    PID:2428
                                                                                                                  • 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 LocalService -p -s LicenseManager
                                                                                                                      1⤵
                                                                                                                        PID:4244
                                                                                                                      • C:\Windows\System32\svchost.exe
                                                                                                                        C:\Windows\System32\svchost.exe -k netsvcs -p
                                                                                                                        1⤵
                                                                                                                          PID:4132
                                                                                                                        • C:\Windows\System32\svchost.exe
                                                                                                                          C:\Windows\System32\svchost.exe -k LocalSystemNetworkRestricted -p -s StorSvc
                                                                                                                          1⤵
                                                                                                                            PID:4360
                                                                                                                          • C:\Windows\system32\svchost.exe
                                                                                                                            C:\Windows\system32\svchost.exe -k LocalService -p -s CDPSvc
                                                                                                                            1⤵
                                                                                                                              PID:4288
                                                                                                                            • C:\Windows\system32\svchost.exe
                                                                                                                              C:\Windows\system32\svchost.exe -k LocalServiceNetworkRestricted -p -s WinHttpAutoProxySvc
                                                                                                                              1⤵
                                                                                                                                PID:2500
                                                                                                                              • C:\Windows\system32\svchost.exe
                                                                                                                                C:\Windows\system32\svchost.exe -k LocalService -s W32Time
                                                                                                                                1⤵
                                                                                                                                  PID:4920
                                                                                                                                • C:\Windows\System32\svchost.exe
                                                                                                                                  C:\Windows\System32\svchost.exe -k WerSvcGroup
                                                                                                                                  1⤵
                                                                                                                                    PID:2744
                                                                                                                                    • C:\Windows\SysWOW64\WerFault.exe
                                                                                                                                      C:\Windows\SysWOW64\WerFault.exe -pss -s 408 -p 2196 -ip 2196
                                                                                                                                      2⤵
                                                                                                                                        PID:484
                                                                                                                                      • C:\Windows\SysWOW64\WerFault.exe
                                                                                                                                        C:\Windows\SysWOW64\WerFault.exe -pss -s 428 -p 4356 -ip 4356
                                                                                                                                        2⤵
                                                                                                                                          PID:3500

                                                                                                                                      Network

                                                                                                                                      MITRE ATT&CK Enterprise v6

                                                                                                                                      Replay Monitor

                                                                                                                                      Loading Replay Monitor...

                                                                                                                                      Downloads

                                                                                                                                      • C:\Users\Admin\AppData\Local\Temp\~TMAC90.tmp

                                                                                                                                        Filesize

                                                                                                                                        1.6MB

                                                                                                                                        MD5

                                                                                                                                        4f3387277ccbd6d1f21ac5c07fe4ca68

                                                                                                                                        SHA1

                                                                                                                                        e16506f662dc92023bf82def1d621497c8ab5890

                                                                                                                                        SHA256

                                                                                                                                        767a3fc4a7a6818cdc3f0b99aaa95db694f6bcde719d2057a88b3d4df3d74fac

                                                                                                                                        SHA512

                                                                                                                                        9da199ac69e3c0d4e0c6307e0ab8178f12cc25cb2f14c3511f6b64e6e60a925c860f3263cb38353a97b55a71ef4d27f8cb7fa3cfc08e7c1a349fd8d209dfa219

                                                                                                                                      • C:\Windows\SysWOW64\rundll32mgr.exe

                                                                                                                                        Filesize

                                                                                                                                        212KB

                                                                                                                                        MD5

                                                                                                                                        d143b49e7630a2ed55839138b611896b

                                                                                                                                        SHA1

                                                                                                                                        93a28da6fbfc26cac63d1b89c116289f189b9ce3

                                                                                                                                        SHA256

                                                                                                                                        784b3b57be846dcd9d3b28cc783bd722b7a87d56a02555379f366e4a88c48e0e

                                                                                                                                        SHA512

                                                                                                                                        2aae97e3f92bfbc3636072d4577d030a006297f4893d080a312868dc3bcc3c86cd485b8d2d912ac245502df8a8ab893f28988c2c4be7c1d5a20b2522c2cfec5a

                                                                                                                                      • C:\Windows\SysWOW64\rundll32mgr.exe

                                                                                                                                        Filesize

                                                                                                                                        212KB

                                                                                                                                        MD5

                                                                                                                                        d143b49e7630a2ed55839138b611896b

                                                                                                                                        SHA1

                                                                                                                                        93a28da6fbfc26cac63d1b89c116289f189b9ce3

                                                                                                                                        SHA256

                                                                                                                                        784b3b57be846dcd9d3b28cc783bd722b7a87d56a02555379f366e4a88c48e0e

                                                                                                                                        SHA512

                                                                                                                                        2aae97e3f92bfbc3636072d4577d030a006297f4893d080a312868dc3bcc3c86cd485b8d2d912ac245502df8a8ab893f28988c2c4be7c1d5a20b2522c2cfec5a

                                                                                                                                      • memory/484-139-0x000000007F560000-0x000000007F56C000-memory.dmp

                                                                                                                                        Filesize

                                                                                                                                        48KB

                                                                                                                                      • memory/2196-138-0x000000007EE90000-0x000000007EE9C000-memory.dmp

                                                                                                                                        Filesize

                                                                                                                                        48KB

                                                                                                                                      • memory/2196-133-0x0000000010000000-0x0000000010056000-memory.dmp

                                                                                                                                        Filesize

                                                                                                                                        344KB

                                                                                                                                      • memory/2196-143-0x0000000010000000-0x0000000010056000-memory.dmp

                                                                                                                                        Filesize

                                                                                                                                        344KB

                                                                                                                                      • memory/2196-144-0x000000007EE90000-0x000000007EE9C000-memory.dmp

                                                                                                                                        Filesize

                                                                                                                                        48KB

                                                                                                                                      • memory/4356-137-0x0000000000400000-0x0000000000476000-memory.dmp

                                                                                                                                        Filesize

                                                                                                                                        472KB

                                                                                                                                      • memory/4356-140-0x0000000002230000-0x00000000022A6000-memory.dmp

                                                                                                                                        Filesize

                                                                                                                                        472KB

                                                                                                                                      • memory/4356-142-0x0000000077C90000-0x0000000077E33000-memory.dmp

                                                                                                                                        Filesize

                                                                                                                                        1.6MB