Analysis

  • max time kernel
    150s
  • max time network
    145s
  • platform
    windows7_x64
  • resource
    win7-20240221-en
  • resource tags

    arch:x64arch:x86image:win7-20240221-enlocale:en-usos:windows7-x64system
  • submitted
    27/03/2024, 06:00

General

  • Target
    e0eefb551acfdb3ed83ab8469f2452f4.dll
  • Size 337KB
  • Sample240327-gp93saeb58
  • SHA256 ade9ee1e12902bd5d38d97bf2a9356ac50f3fea6f4f97e30214841856c942721
  • MD5 SHA1 SHA512 SSDEEP

Malware Config

Signatures

  • Modifies WinLogon for persistence 2 TTPs 1 IoCs
  • Ramnit

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

  • Executes dropped EXE 2 IoCs
  • Loads dropped DLL 4 IoCs
  • UPX packed file 13 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
  • Modifies registry class 4 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:260
    • 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:336
      • C:\Windows\system32\wininit.exe
        wininit.exe
        1⤵
          PID:388
          • C:\Windows\system32\services.exe
            C:\Windows\system32\services.exe
            2⤵
              PID:480
              • C:\Windows\system32\svchost.exe
                C:\Windows\system32\svchost.exe -k DcomLaunch
                3⤵
                  PID:616
                  • C:\Windows\system32\DllHost.exe
                    C:\Windows\system32\DllHost.exe /Processid:{3EB3C877-1F16-487C-9050-104DBCD66683}
                    4⤵
                      PID:1956
                    • C:\Windows\system32\wbem\wmiprvse.exe
                      C:\Windows\system32\wbem\wmiprvse.exe -Embedding
                      4⤵
                        PID:1680
                    • C:\Windows\system32\svchost.exe
                      C:\Windows\system32\svchost.exe -k RPCSS
                      3⤵
                        PID:692
                      • C:\Windows\System32\svchost.exe
                        C:\Windows\System32\svchost.exe -k LocalServiceNetworkRestricted
                        3⤵
                          PID:764
                        • C:\Windows\System32\svchost.exe
                          C:\Windows\System32\svchost.exe -k LocalSystemNetworkRestricted
                          3⤵
                            PID:840
                            • C:\Windows\system32\Dwm.exe
                              "C:\Windows\system32\Dwm.exe"
                              4⤵
                                PID:1176
                            • C:\Windows\system32\svchost.exe
                              C:\Windows\system32\svchost.exe -k netsvcs
                              3⤵
                                PID:876
                                • C:\Windows\system32\wbem\WMIADAP.EXE
                                  wmiadap.exe /F /T /R
                                  4⤵
                                    PID:2656
                                • C:\Windows\system32\svchost.exe
                                  C:\Windows\system32\svchost.exe -k LocalService
                                  3⤵
                                    PID:1000
                                  • C:\Windows\system32\svchost.exe
                                    C:\Windows\system32\svchost.exe -k NetworkService
                                    3⤵
                                      PID:348
                                    • C:\Windows\System32\spoolsv.exe
                                      C:\Windows\System32\spoolsv.exe
                                      3⤵
                                        PID:1032
                                      • C:\Windows\system32\svchost.exe
                                        C:\Windows\system32\svchost.exe -k LocalServiceNoNetwork
                                        3⤵
                                          PID:1092
                                        • C:\Windows\system32\taskhost.exe
                                          "taskhost.exe"
                                          3⤵
                                            PID:1132
                                          • C:\Windows\system32\svchost.exe
                                            C:\Windows\system32\svchost.exe -k LocalServiceAndNoImpersonation
                                            3⤵
                                              PID:1256
                                            • C:\Windows\system32\sppsvc.exe
                                              C:\Windows\system32\sppsvc.exe
                                              3⤵
                                                PID:2376
                                            • C:\Windows\system32\lsass.exe
                                              C:\Windows\system32\lsass.exe
                                              2⤵
                                                PID:496
                                              • C:\Windows\system32\lsm.exe
                                                C:\Windows\system32\lsm.exe
                                                2⤵
                                                  PID:504
                                              • 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:400
                                                • C:\Windows\system32\winlogon.exe
                                                  winlogon.exe
                                                  1⤵
                                                    PID:436
                                                  • C:\Windows\Explorer.EXE
                                                    C:\Windows\Explorer.EXE
                                                    1⤵
                                                      PID:1212
                                                      • C:\Windows\system32\regsvr32.exe
                                                        regsvr32 /s C:\Users\Admin\AppData\Local\Temp\e0eefb551acfdb3ed83ab8469f2452f4.dll
                                                        2⤵
                                                        • Suspicious use of WriteProcessMemory
                                                        PID:2420
                                                        • C:\Windows\SysWOW64\regsvr32.exe
                                                          /s C:\Users\Admin\AppData\Local\Temp\e0eefb551acfdb3ed83ab8469f2452f4.dll
                                                          3⤵
                                                          • Loads dropped DLL
                                                          • Drops file in System32 directory
                                                          • Modifies registry class
                                                          • Suspicious use of WriteProcessMemory
                                                          PID:2144
                                                          • C:\Windows\SysWOW64\regsvr32mgr.exe
                                                            C:\Windows\SysWOW64\regsvr32mgr.exe
                                                            4⤵
                                                            • Executes dropped EXE
                                                            • Loads dropped DLL
                                                            • Suspicious use of UnmapMainImage
                                                            • Suspicious use of WriteProcessMemory
                                                            PID:1168
                                                            • 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:1948
                                                              • 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:2576
                                                              • C:\Windows\SysWOW64\svchost.exe
                                                                C:\Windows\system32\svchost.exe
                                                                6⤵
                                                                • Suspicious behavior: EnumeratesProcesses
                                                                • Suspicious use of AdjustPrivilegeToken
                                                                • Suspicious use of WriteProcessMemory
                                                                PID:556

                                                    Network

                                                          MITRE ATT&CK Enterprise v15

                                                          Replay Monitor

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                                                          Downloads

                                                          epl-v10.html

                                                          • Path 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
                                                          • Size 206KB
                                                          • SHA256 1519aa1eddd70ed7099acee4934ff6da0fdc281853884632e8986f847694d828
                                                          • MD5 SHA1 SHA512 SSDEEP

                                                          license.html

                                                          • Path C:\Program Files\Java\jdk1.7.0_80\lib\missioncontrol\features\org.eclipse.ecf.core.ssl.feature_1.0.0.v20140827-1444\license.html
                                                          • Size 202KB
                                                          • SHA256 cd61be7c71a6cd14df08483292361f95a5e3cff8dba8d051d93419785574a63f
                                                          • MD5 SHA1 SHA512 SSDEEP

                                                          regsvr32mgr.exe

                                                          • Path \Windows\SysWOW64\regsvr32mgr.exe
                                                          • Size 96KB
                                                          • SHA256 528d190fc376cff62a83391a5ba10ae4ef0c02bedabd0360274ddc2784e11da3
                                                          • MD5 SHA1 SHA512 SSDEEP

                                                          memory/556-73-0x0000000020010000-0x000000002001B000-memory.dmp

                                                          memory/556-93-0x00000000776C0000-0x00000000776C1000-memory.dmp

                                                          memory/556-92-0x0000000020010000-0x000000002001B000-memory.dmp

                                                          memory/556-90-0x0000000000280000-0x0000000000281000-memory.dmp

                                                          memory/556-89-0x0000000020010000-0x000000002001B000-memory.dmp

                                                          memory/556-88-0x0000000020010000-0x000000002001B000-memory.dmp

                                                          memory/556-87-0x0000000000130000-0x0000000000131000-memory.dmp

                                                          memory/556-86-0x0000000020010000-0x000000002001B000-memory.dmp

                                                          memory/556-82-0x0000000020010000-0x000000002001B000-memory.dmp

                                                          memory/1168-30-0x00000000001A0000-0x00000000001D5000-memory.dmp

                                                          memory/1168-12-0x0000000000400000-0x0000000000421000-memory.dmp

                                                          memory/1168-16-0x0000000000400000-0x0000000000421000-memory.dmp

                                                          memory/1168-17-0x0000000000400000-0x0000000000421000-memory.dmp

                                                          memory/1168-11-0x0000000000400000-0x0000000000435000-memory.dmp

                                                          memory/1168-13-0x0000000000140000-0x0000000000141000-memory.dmp

                                                          memory/1168-14-0x0000000000400000-0x0000000000421000-memory.dmp

                                                          memory/1168-15-0x0000000000400000-0x0000000000421000-memory.dmp

                                                          memory/1168-22-0x0000000000400000-0x0000000000421000-memory.dmp

                                                          memory/1168-18-0x0000000000400000-0x0000000000421000-memory.dmp

                                                          memory/1948-43-0x00000000776BF000-0x00000000776C0000-memory.dmp

                                                          memory/1948-41-0x0000000000400000-0x0000000000421000-memory.dmp

                                                          memory/1948-271-0x0000000000260000-0x0000000000261000-memory.dmp

                                                          memory/1948-273-0x0000000000060000-0x0000000000061000-memory.dmp

                                                          memory/1948-451-0x0000000000400000-0x0000000000421000-memory.dmp

                                                          memory/1948-280-0x0000000000400000-0x0000000000421000-memory.dmp

                                                          memory/1948-71-0x0000000000060000-0x0000000000061000-memory.dmp

                                                          memory/1948-39-0x0000000000400000-0x0000000000421000-memory.dmp

                                                          memory/1948-33-0x0000000000400000-0x0000000000435000-memory.dmp

                                                          memory/1948-284-0x00000000776BF000-0x00000000776C0000-memory.dmp

                                                          memory/1948-281-0x00000000776C0000-0x00000000776C1000-memory.dmp

                                                          memory/1948-42-0x0000000000050000-0x0000000000051000-memory.dmp

                                                          memory/2144-10-0x00000000001D0000-0x0000000000205000-memory.dmp

                                                          memory/2144-3-0x00000000001D0000-0x0000000000205000-memory.dmp

                                                          memory/2144-2-0x00000000748D0000-0x0000000074927000-memory.dmp

                                                          memory/2576-55-0x0000000020010000-0x0000000020022000-memory.dmp

                                                          memory/2576-54-0x00000000000A0000-0x00000000000A1000-memory.dmp

                                                          memory/2576-448-0x0000000020010000-0x0000000020022000-memory.dmp

                                                          memory/2576-56-0x0000000000080000-0x0000000000081000-memory.dmp

                                                          memory/2576-45-0x0000000020010000-0x0000000020022000-memory.dmp

                                                          memory/2576-47-0x0000000000080000-0x0000000000081000-memory.dmp

                                                          memory/2576-68-0x0000000020010000-0x0000000020022000-memory.dmp

                                                          memory/2576-67-0x0000000020010000-0x0000000020022000-memory.dmp

                                                          memory/2576-62-0x0000000020010000-0x0000000020022000-memory.dmp

                                                          memory/2576-58-0x0000000000090000-0x0000000000091000-memory.dmp