Analysis

  • max time kernel
    150s
  • max time network
    148s
  • platform
    windows7_x64
  • resource
    win7-20240221-en
  • resource tags

    arch:x64arch:x86image:win7-20240221-enlocale:en-usos:windows7-x64system
  • submitted
    15/03/2024, 17:25

General

  • Target
    cbfdae7fe306137ec5b180a3f1cfbd40.exe
  • Size 120KB
  • Sample240315-vzf5caeb2x
  • SHA256 1d8086cbd134f292febdf6bfa05b5de9ee836e9b806e088ff4f164d580d0c5b8
  • 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 1 IoCs
  • Loads dropped DLL 2 IoCs
  • UPX packed file 5 IoCs

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

  • Drops file in System32 directory 2 IoCs
  • Drops file in Program Files directory 64 IoCs
  • Suspicious behavior: EnumeratesProcesses 37 IoCs
  • Suspicious use of AdjustPrivilegeToken 3 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:600
                  • C:\Windows\system32\DllHost.exe
                    C:\Windows\system32\DllHost.exe /Processid:{3EB3C877-1F16-487C-9050-104DBCD66683}
                    4⤵
                      PID:1856
                    • C:\Windows\system32\wbem\wmiprvse.exe
                      C:\Windows\system32\wbem\wmiprvse.exe -Embedding
                      4⤵
                        PID:2780
                    • 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:752
                        • C:\Windows\System32\svchost.exe
                          C:\Windows\System32\svchost.exe -k LocalSystemNetworkRestricted
                          3⤵
                            PID:816
                            • C:\Windows\system32\Dwm.exe
                              "C:\Windows\system32\Dwm.exe"
                              4⤵
                                PID:1060
                            • C:\Windows\system32\svchost.exe
                              C:\Windows\system32\svchost.exe -k netsvcs
                              3⤵
                                PID:844
                                • C:\Windows\system32\wbem\WMIADAP.EXE
                                  wmiadap.exe /F /T /R
                                  4⤵
                                    PID:2716
                                • C:\Windows\system32\svchost.exe
                                  C:\Windows\system32\svchost.exe -k LocalService
                                  3⤵
                                    PID:968
                                  • C:\Windows\system32\svchost.exe
                                    C:\Windows\system32\svchost.exe -k NetworkService
                                    3⤵
                                      PID:240
                                    • C:\Windows\system32\taskhost.exe
                                      "taskhost.exe"
                                      3⤵
                                        PID:1080
                                      • C:\Windows\System32\spoolsv.exe
                                        C:\Windows\System32\spoolsv.exe
                                        3⤵
                                          PID:1088
                                        • C:\Windows\system32\svchost.exe
                                          C:\Windows\system32\svchost.exe -k LocalServiceNoNetwork
                                          3⤵
                                            PID:1168
                                          • C:\Windows\system32\svchost.exe
                                            C:\Windows\system32\svchost.exe -k LocalServiceAndNoImpersonation
                                            3⤵
                                              PID:2104
                                            • C:\Windows\system32\sppsvc.exe
                                              C:\Windows\system32\sppsvc.exe
                                              3⤵
                                                PID:2960
                                            • 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:1152
                                                      • C:\Users\Admin\AppData\Local\Temp\cbfdae7fe306137ec5b180a3f1cfbd40.exe
                                                        "C:\Users\Admin\AppData\Local\Temp\cbfdae7fe306137ec5b180a3f1cfbd40.exe"
                                                        2⤵
                                                        • Loads dropped DLL
                                                        • Suspicious use of WriteProcessMemory
                                                        PID:2100
                                                        • C:\Program Files (x86)\Microsoft\WaterMark.exe
                                                          "C:\Program Files (x86)\Microsoft\WaterMark.exe"
                                                          3⤵
                                                          • Executes dropped EXE
                                                          • Suspicious behavior: EnumeratesProcesses
                                                          • Suspicious use of AdjustPrivilegeToken
                                                          • Suspicious use of WriteProcessMemory
                                                          PID:2720
                                                          • C:\Windows\SysWOW64\svchost.exe
                                                            C:\Windows\system32\svchost.exe
                                                            4⤵
                                                            • Modifies WinLogon for persistence
                                                            • Drops file in System32 directory
                                                            • Drops file in Program Files directory
                                                            PID:2556
                                                          • C:\Windows\SysWOW64\svchost.exe
                                                            C:\Windows\system32\svchost.exe
                                                            4⤵
                                                            • Suspicious behavior: EnumeratesProcesses
                                                            • Suspicious use of AdjustPrivilegeToken
                                                            • Suspicious use of WriteProcessMemory
                                                            PID:2592

                                                    Network

                                                          MITRE ATT&CK Enterprise v15

                                                          Replay Monitor

                                                          Loading Replay Monitor...

                                                          Downloads

                                                          WaterMark.exe

                                                          • Path C:\Program Files (x86)\Microsoft\WaterMark.exe
                                                          • Size 120KB
                                                          • SHA256 1d8086cbd134f292febdf6bfa05b5de9ee836e9b806e088ff4f164d580d0c5b8
                                                          • MD5 SHA1 SHA512 SSDEEP

                                                          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 254KB
                                                          • SHA256 0b0e20564972c9a2580c624053b6063d721a69b07767551103d8c343e3c70840
                                                          • 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 250KB
                                                          • SHA256 6edcf7eee06d4c7d6e73588d5a2e176b159a8b74bdd7a7b5a2a408ed117415d4
                                                          • MD5 SHA1 SHA512 SSDEEP

                                                          memory/2100-3-0x0000000000220000-0x0000000000246000-memory.dmp

                                                          memory/2100-0-0x0000000000400000-0x0000000000426000-memory.dmp

                                                          memory/2100-252-0x0000000000220000-0x0000000000246000-memory.dmp

                                                          memory/2100-1-0x0000000000400000-0x0000000000426000-memory.dmp

                                                          memory/2556-32-0x0000000020010000-0x0000000020022000-memory.dmp

                                                          memory/2556-20-0x0000000000080000-0x0000000000081000-memory.dmp

                                                          memory/2556-18-0x0000000020010000-0x0000000020022000-memory.dmp

                                                          memory/2556-25-0x0000000020010000-0x0000000020022000-memory.dmp

                                                          memory/2556-26-0x0000000000080000-0x0000000000081000-memory.dmp

                                                          memory/2556-24-0x00000000000A0000-0x00000000000A1000-memory.dmp

                                                          memory/2556-28-0x0000000000090000-0x0000000000091000-memory.dmp

                                                          memory/2556-566-0x0000000020010000-0x0000000020022000-memory.dmp

                                                          memory/2556-37-0x0000000020010000-0x0000000020022000-memory.dmp

                                                          memory/2556-38-0x0000000020010000-0x0000000020022000-memory.dmp

                                                          memory/2556-39-0x0000000020010000-0x0000000020022000-memory.dmp

                                                          memory/2592-65-0x0000000077A00000-0x0000000077A01000-memory.dmp

                                                          memory/2592-44-0x0000000020010000-0x000000002001B000-memory.dmp

                                                          memory/2592-59-0x0000000000370000-0x0000000000371000-memory.dmp

                                                          memory/2592-60-0x0000000020010000-0x000000002001B000-memory.dmp

                                                          memory/2592-58-0x0000000020010000-0x000000002001B000-memory.dmp

                                                          memory/2592-57-0x0000000020010000-0x000000002001B000-memory.dmp

                                                          memory/2592-56-0x0000000000360000-0x0000000000361000-memory.dmp

                                                          memory/2592-55-0x0000000020010000-0x000000002001B000-memory.dmp

                                                          memory/2592-51-0x0000000020010000-0x000000002001B000-memory.dmp

                                                          memory/2720-42-0x0000000000330000-0x0000000000331000-memory.dmp

                                                          memory/2720-50-0x00000000779FF000-0x0000000077A00000-memory.dmp

                                                          memory/2720-245-0x0000000000360000-0x0000000000361000-memory.dmp

                                                          memory/2720-246-0x0000000000330000-0x0000000000331000-memory.dmp

                                                          memory/2720-248-0x0000000077A00000-0x0000000077A01000-memory.dmp

                                                          memory/2720-253-0x0000000000400000-0x0000000000426000-memory.dmp

                                                          memory/2720-16-0x00000000779FF000-0x0000000077A00000-memory.dmp

                                                          memory/2720-415-0x0000000000400000-0x0000000000426000-memory.dmp

                                                          memory/2720-13-0x0000000000400000-0x0000000000426000-memory.dmp

                                                          memory/2720-15-0x0000000000400000-0x0000000000426000-memory.dmp

                                                          memory/2720-14-0x0000000000260000-0x0000000000261000-memory.dmp