Analysis

  • max time kernel
    150s
  • max time network
    148s
  • platform
    windows7_x64
  • resource
    win7-20240508-en
  • resource tags

    arch:x64arch:x86image:win7-20240508-enlocale:en-usos:windows7-x64system
  • submitted
    14-06-2024 05:05

General

  • Target

    dfa9a4c3f187e3c4a6204c2a6cb545e629864c2424ae106da9d0a9ada8eb5542.dll

  • Size

    508KB

  • MD5

    a710201fa3d7aaa02f4a8d1875a37db0

  • SHA1

    38471a0d4072cc93d380484b5170f24845cc3575

  • SHA256

    dfa9a4c3f187e3c4a6204c2a6cb545e629864c2424ae106da9d0a9ada8eb5542

  • SHA512

    4ee6b0ef10ac77a2b5af657cdd975f5cc1c2f354dcb09d5c2d79b80d520104b4871063c044da70ca4339cbe2c6db2d85b27d369873cd90779c29b5580f5fad65

  • SSDEEP

    12288:eehnaNPpSVZmNxRCwnwm3W3OHIIf5QcY6QtOTD:eeh0PpS6NxNnwYeOHXHQtQ

Malware Config

Signatures

  • Modifies WinLogon for persistence 2 TTPs 1 IoCs
  • Ramnit

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

  • UPX dump on OEP (original entry point) 8 IoCs
  • Executes dropped EXE 2 IoCs
  • Loads dropped DLL 4 IoCs
  • UPX packed file 9 IoCs

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

  • Drops file in System32 directory 3 IoCs
  • Drops file in Program Files directory 64 IoCs
  • Suspicious behavior: EnumeratesProcesses 37 IoCs
  • Suspicious use of AdjustPrivilegeToken 3 IoCs
  • Suspicious use of UnmapMainImage 2 IoCs
  • Suspicious use of WriteProcessMemory 64 IoCs

Processes

  • C:\Windows\System32\smss.exe
    \SystemRoot\System32\smss.exe
    1⤵
      PID:256
    • C:\Windows\system32\csrss.exe
      %SystemRoot%\system32\csrss.exe ObjectDirectory=\Windows SharedSection=1024,20480,768 Windows=On SubSystemType=Windows ServerDll=basesrv,1 ServerDll=winsrv:UserServerDllInitialization,3 ServerDll=winsrv:ConServerDllInitialization,2 ServerDll=sxssrv,4 ProfileControl=Off MaxRequestThreads=16
      1⤵
        PID:332
      • C:\Windows\system32\wininit.exe
        wininit.exe
        1⤵
          PID:380
          • C:\Windows\system32\services.exe
            C:\Windows\system32\services.exe
            2⤵
              PID:472
              • C:\Windows\system32\svchost.exe
                C:\Windows\system32\svchost.exe -k DcomLaunch
                3⤵
                  PID:596
                  • C:\Windows\system32\DllHost.exe
                    C:\Windows\system32\DllHost.exe /Processid:{3EB3C877-1F16-487C-9050-104DBCD66683}
                    4⤵
                      PID:2428
                    • C:\Windows\system32\wbem\wmiprvse.exe
                      C:\Windows\system32\wbem\wmiprvse.exe -Embedding
                      4⤵
                        PID:1548
                    • C:\Windows\system32\svchost.exe
                      C:\Windows\system32\svchost.exe -k RPCSS
                      3⤵
                        PID:676
                      • C:\Windows\System32\svchost.exe
                        C:\Windows\System32\svchost.exe -k LocalServiceNetworkRestricted
                        3⤵
                          PID:740
                        • C:\Windows\System32\svchost.exe
                          C:\Windows\System32\svchost.exe -k LocalSystemNetworkRestricted
                          3⤵
                            PID:812
                            • C:\Windows\system32\Dwm.exe
                              "C:\Windows\system32\Dwm.exe"
                              4⤵
                                PID:1160
                            • C:\Windows\system32\svchost.exe
                              C:\Windows\system32\svchost.exe -k netsvcs
                              3⤵
                                PID:856
                                • C:\Windows\system32\wbem\WMIADAP.EXE
                                  wmiadap.exe /F /T /R
                                  4⤵
                                    PID:1588
                                • C:\Windows\system32\svchost.exe
                                  C:\Windows\system32\svchost.exe -k LocalService
                                  3⤵
                                    PID:964
                                  • C:\Windows\system32\svchost.exe
                                    C:\Windows\system32\svchost.exe -k NetworkService
                                    3⤵
                                      PID:112
                                    • C:\Windows\System32\spoolsv.exe
                                      C:\Windows\System32\spoolsv.exe
                                      3⤵
                                        PID:1012
                                      • C:\Windows\system32\svchost.exe
                                        C:\Windows\system32\svchost.exe -k LocalServiceNoNetwork
                                        3⤵
                                          PID:1060
                                        • C:\Windows\system32\taskhost.exe
                                          "taskhost.exe"
                                          3⤵
                                            PID:1108
                                          • C:\Windows\system32\svchost.exe
                                            C:\Windows\system32\svchost.exe -k LocalServiceAndNoImpersonation
                                            3⤵
                                              PID:2392
                                            • C:\Windows\system32\sppsvc.exe
                                              C:\Windows\system32\sppsvc.exe
                                              3⤵
                                                PID:2472
                                            • C:\Windows\system32\lsass.exe
                                              C:\Windows\system32\lsass.exe
                                              2⤵
                                                PID:488
                                              • C:\Windows\system32\lsm.exe
                                                C:\Windows\system32\lsm.exe
                                                2⤵
                                                  PID:496
                                              • C:\Windows\system32\csrss.exe
                                                %SystemRoot%\system32\csrss.exe ObjectDirectory=\Windows SharedSection=1024,20480,768 Windows=On SubSystemType=Windows ServerDll=basesrv,1 ServerDll=winsrv:UserServerDllInitialization,3 ServerDll=winsrv:ConServerDllInitialization,2 ServerDll=sxssrv,4 ProfileControl=Off MaxRequestThreads=16
                                                1⤵
                                                  PID:388
                                                • C:\Windows\system32\winlogon.exe
                                                  winlogon.exe
                                                  1⤵
                                                    PID:428
                                                  • C:\Windows\Explorer.EXE
                                                    C:\Windows\Explorer.EXE
                                                    1⤵
                                                      PID:1224
                                                      • C:\Windows\system32\rundll32.exe
                                                        rundll32.exe C:\Users\Admin\AppData\Local\Temp\dfa9a4c3f187e3c4a6204c2a6cb545e629864c2424ae106da9d0a9ada8eb5542.dll,#1
                                                        2⤵
                                                        • Suspicious use of WriteProcessMemory
                                                        PID:1896
                                                        • C:\Windows\SysWOW64\rundll32.exe
                                                          rundll32.exe C:\Users\Admin\AppData\Local\Temp\dfa9a4c3f187e3c4a6204c2a6cb545e629864c2424ae106da9d0a9ada8eb5542.dll,#1
                                                          3⤵
                                                          • Loads dropped DLL
                                                          • Drops file in System32 directory
                                                          • Suspicious use of WriteProcessMemory
                                                          PID:2024
                                                          • C:\Windows\SysWOW64\rundll32mgr.exe
                                                            C:\Windows\SysWOW64\rundll32mgr.exe
                                                            4⤵
                                                            • Executes dropped EXE
                                                            • Loads dropped DLL
                                                            • Drops file in Program Files directory
                                                            • Suspicious use of UnmapMainImage
                                                            • Suspicious use of WriteProcessMemory
                                                            PID:2180
                                                            • C:\Program Files (x86)\Microsoft\WaterMark.exe
                                                              "C:\Program Files (x86)\Microsoft\WaterMark.exe"
                                                              5⤵
                                                              • Executes dropped EXE
                                                              • Suspicious behavior: EnumeratesProcesses
                                                              • Suspicious use of AdjustPrivilegeToken
                                                              • Suspicious use of UnmapMainImage
                                                              • Suspicious use of WriteProcessMemory
                                                              PID:2320
                                                              • C:\Windows\SysWOW64\svchost.exe
                                                                C:\Windows\system32\svchost.exe
                                                                6⤵
                                                                • Modifies WinLogon for persistence
                                                                • Drops file in System32 directory
                                                                • Drops file in Program Files directory
                                                                PID:2660
                                                              • C:\Windows\SysWOW64\svchost.exe
                                                                C:\Windows\system32\svchost.exe
                                                                6⤵
                                                                • Suspicious behavior: EnumeratesProcesses
                                                                • Suspicious use of AdjustPrivilegeToken
                                                                • Suspicious use of WriteProcessMemory
                                                                PID:2984

                                                    Network

                                                    MITRE ATT&CK Matrix ATT&CK v13

                                                    Persistence

                                                    Boot or Logon Autostart Execution

                                                    1
                                                    T1547

                                                    Winlogon Helper DLL

                                                    1
                                                    T1547.004

                                                    Privilege Escalation

                                                    Boot or Logon Autostart Execution

                                                    1
                                                    T1547

                                                    Winlogon Helper DLL

                                                    1
                                                    T1547.004

                                                    Defense Evasion

                                                    Modify Registry

                                                    1
                                                    T1112

                                                    Replay Monitor

                                                    Loading Replay Monitor...

                                                    Downloads

                                                    • C:\Program Files\Java\jdk1.7.0_80\lib\missioncontrol\features\org.eclipse.ecf.core.ssl.feature_1.0.0.v20140827-1444\epl-v10.html
                                                      Filesize

                                                      260KB

                                                      MD5

                                                      74ec4d1d828a464258e64fcde52f9379

                                                      SHA1

                                                      18c40313f32174316fad0a58b36d6f5646da714b

                                                      SHA256

                                                      62e03e83183b2d0ec14092ecfaa70961f7994bbec537b78a74c52c36e541f627

                                                      SHA512

                                                      b2eba8abc192bac5fc64e5c9b21c95470172002843f23e2a34985a6896d2ca90908662c37de53b97db75f9758f8217fd415b70fe52b20c53cd2bc172fe5b8728

                                                    • C:\Program Files\Java\jdk1.7.0_80\lib\missioncontrol\features\org.eclipse.ecf.core.ssl.feature_1.0.0.v20140827-1444\license.html
                                                      Filesize

                                                      256KB

                                                      MD5

                                                      6e0f8151e92468ed019cac432bb6f421

                                                      SHA1

                                                      0d2cc2c08293a403f76fc667b96a80ce55c9609f

                                                      SHA256

                                                      5d0b94b9b97160fb9fe42da2acdfae328ad3000f69360418f54191417ef02c73

                                                      SHA512

                                                      86a33dbc39cb33ce61a441a8e861c6d4cf9ee004daa8ada545917d2cae1e3283b54dcb40c7f15f6b4e2eff3a3ae21ccd4724707630f3296d128baa5a48c9911f

                                                    • \Windows\SysWOW64\rundll32mgr.exe
                                                      Filesize

                                                      123KB

                                                      MD5

                                                      41cdf1d40aff3f71114ea210307b6a1c

                                                      SHA1

                                                      8d5237ed7a29003af5b857edd85f7f54a91f600c

                                                      SHA256

                                                      00ba79fa51af9b735ebbded72313232d83956c922e206362f9b71411772162b7

                                                      SHA512

                                                      fdcba01191a345416f17fb4024255f97af135824f1ce57bb8456d74fbfd0e37f89500aeb92c19c4add62e6cb416c57cd06b2aee310fabb91e468852ca062ff0e

                                                    • memory/2024-10-0x0000000000240000-0x000000000028A000-memory.dmp
                                                      Filesize

                                                      296KB

                                                    • memory/2024-3-0x0000000000240000-0x000000000028A000-memory.dmp
                                                      Filesize

                                                      296KB

                                                    • memory/2024-2-0x0000000010000000-0x0000000010081000-memory.dmp
                                                      Filesize

                                                      516KB

                                                    • memory/2180-29-0x00000000001A0000-0x00000000001EA000-memory.dmp
                                                      Filesize

                                                      296KB

                                                    • memory/2180-15-0x0000000000400000-0x0000000000421000-memory.dmp
                                                      Filesize

                                                      132KB

                                                    • memory/2180-14-0x0000000000400000-0x0000000000421000-memory.dmp
                                                      Filesize

                                                      132KB

                                                    • memory/2180-11-0x0000000000400000-0x000000000044A000-memory.dmp
                                                      Filesize

                                                      296KB

                                                    • memory/2180-12-0x0000000000400000-0x0000000000421000-memory.dmp
                                                      Filesize

                                                      132KB

                                                    • memory/2180-13-0x0000000000400000-0x0000000000421000-memory.dmp
                                                      Filesize

                                                      132KB

                                                    • memory/2180-16-0x0000000000140000-0x0000000000141000-memory.dmp
                                                      Filesize

                                                      4KB

                                                    • memory/2180-17-0x0000000000400000-0x0000000000421000-memory.dmp
                                                      Filesize

                                                      132KB

                                                    • memory/2180-18-0x0000000000400000-0x0000000000421000-memory.dmp
                                                      Filesize

                                                      132KB

                                                    • memory/2180-23-0x0000000000400000-0x0000000000421000-memory.dmp
                                                      Filesize

                                                      132KB

                                                    • memory/2320-82-0x00000000776FF000-0x0000000077700000-memory.dmp
                                                      Filesize

                                                      4KB

                                                    • memory/2320-70-0x0000000000060000-0x0000000000061000-memory.dmp
                                                      Filesize

                                                      4KB

                                                    • memory/2320-39-0x00000000001A0000-0x00000000001A1000-memory.dmp
                                                      Filesize

                                                      4KB

                                                    • memory/2320-35-0x0000000000400000-0x000000000044A000-memory.dmp
                                                      Filesize

                                                      296KB

                                                    • memory/2320-50-0x0000000000400000-0x0000000000421000-memory.dmp
                                                      Filesize

                                                      132KB

                                                    • memory/2320-51-0x00000000776FF000-0x0000000077700000-memory.dmp
                                                      Filesize

                                                      4KB

                                                    • memory/2320-558-0x0000000000400000-0x0000000000421000-memory.dmp
                                                      Filesize

                                                      132KB

                                                    • memory/2320-40-0x0000000020010000-0x0000000020022000-memory.dmp
                                                      Filesize

                                                      72KB

                                                    • memory/2320-71-0x0000000020010000-0x000000002001B000-memory.dmp
                                                      Filesize

                                                      44KB

                                                    • memory/2660-58-0x0000000020010000-0x0000000020022000-memory.dmp
                                                      Filesize

                                                      72KB

                                                    • memory/2660-65-0x0000000020010000-0x0000000020022000-memory.dmp
                                                      Filesize

                                                      72KB

                                                    • memory/2660-61-0x0000000000080000-0x0000000000081000-memory.dmp
                                                      Filesize

                                                      4KB

                                                    • memory/2660-41-0x0000000020010000-0x0000000020022000-memory.dmp
                                                      Filesize

                                                      72KB

                                                    • memory/2660-60-0x00000000000A0000-0x00000000000A1000-memory.dmp
                                                      Filesize

                                                      4KB

                                                    • memory/2660-62-0x0000000000090000-0x0000000000091000-memory.dmp
                                                      Filesize

                                                      4KB

                                                    • memory/2660-43-0x0000000000080000-0x0000000000081000-memory.dmp
                                                      Filesize

                                                      4KB

                                                    • memory/2660-999-0x0000000020010000-0x0000000020022000-memory.dmp
                                                      Filesize

                                                      72KB

                                                    • memory/2660-53-0x0000000020010000-0x0000000020022000-memory.dmp
                                                      Filesize

                                                      72KB

                                                    • memory/2984-91-0x00000000001D0000-0x00000000001D1000-memory.dmp
                                                      Filesize

                                                      4KB

                                                    • memory/2984-90-0x0000000020010000-0x000000002001B000-memory.dmp
                                                      Filesize

                                                      44KB

                                                    • memory/2984-89-0x0000000020010000-0x000000002001B000-memory.dmp
                                                      Filesize

                                                      44KB

                                                    • memory/2984-88-0x0000000000130000-0x0000000000131000-memory.dmp
                                                      Filesize

                                                      4KB

                                                    • memory/2984-302-0x0000000077700000-0x0000000077701000-memory.dmp
                                                      Filesize

                                                      4KB

                                                    • memory/2984-92-0x0000000020010000-0x000000002001B000-memory.dmp
                                                      Filesize

                                                      44KB

                                                    • memory/2984-87-0x0000000020010000-0x000000002001B000-memory.dmp
                                                      Filesize

                                                      44KB

                                                    • memory/2984-83-0x0000000020010000-0x000000002001B000-memory.dmp
                                                      Filesize

                                                      44KB

                                                    • memory/2984-73-0x0000000020010000-0x000000002001B000-memory.dmp
                                                      Filesize

                                                      44KB