Analysis

  • max time kernel
    120s
  • max time network
    121s
  • platform
    windows7_x64
  • resource
    win7-20240903-en
  • resource tags

    arch:x64arch:x86image:win7-20240903-enlocale:en-usos:windows7-x64system
  • submitted
    09/11/2024, 20:05

General

  • Target
    0ca3c298786daa93f170f92c00481d407ae7b73bcf853c6e2164e4589536f6b8N.dll
  • Size 310KB
  • Sample241109-yt22ea1emb
  • SHA256 0ca3c298786daa93f170f92c00481d407ae7b73bcf853c6e2164e4589536f6b8
  • 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.

  • Ramnit family
  • Executes dropped EXE 2 IoCs
  • Loads dropped DLL 4 IoCs
  • Drops file in System32 directory 3 IoCs
  • UPX packed file 10 IoCs

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

  • Drops file in Program Files directory 64 IoCs
  • Program crash 1 IoCs
  • System Location Discovery: System Language Discovery 1 TTPs 5 IoCs

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

  • Suspicious behavior: EnumeratesProcesses 31 IoCs
  • Suspicious use of AdjustPrivilegeToken 5 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:336
      • C:\Windows\system32\wininit.exe
        wininit.exe
        1⤵
          PID:384
          • C:\Windows\system32\services.exe
            C:\Windows\system32\services.exe
            2⤵
              PID:476
              • C:\Windows\system32\svchost.exe
                C:\Windows\system32\svchost.exe -k DcomLaunch
                3⤵
                  PID:588
                  • C:\Windows\system32\wbem\wmiprvse.exe
                    C:\Windows\system32\wbem\wmiprvse.exe
                    4⤵
                      PID:1252
                    • C:\Windows\system32\DllHost.exe
                      C:\Windows\system32\DllHost.exe /Processid:{3EB3C877-1F16-487C-9050-104DBCD66683}
                      4⤵
                        PID:1488
                    • C:\Windows\system32\svchost.exe
                      C:\Windows\system32\svchost.exe -k RPCSS
                      3⤵
                        PID:672
                      • C:\Windows\System32\svchost.exe
                        C:\Windows\System32\svchost.exe -k LocalServiceNetworkRestricted
                        3⤵
                          PID:748
                        • C:\Windows\System32\svchost.exe
                          C:\Windows\System32\svchost.exe -k LocalSystemNetworkRestricted
                          3⤵
                            PID:808
                            • C:\Windows\system32\Dwm.exe
                              "C:\Windows\system32\Dwm.exe"
                              4⤵
                                PID:1064
                            • C:\Windows\system32\svchost.exe
                              C:\Windows\system32\svchost.exe -k netsvcs
                              3⤵
                                PID:848
                                • C:\Windows\system32\wbem\WMIADAP.EXE
                                  wmiadap.exe /F /T /R
                                  4⤵
                                    PID:3048
                                • C:\Windows\system32\svchost.exe
                                  C:\Windows\system32\svchost.exe -k LocalService
                                  3⤵
                                    PID:960
                                  • C:\Windows\system32\svchost.exe
                                    C:\Windows\system32\svchost.exe -k NetworkService
                                    3⤵
                                      PID:236
                                    • C:\Windows\System32\spoolsv.exe
                                      C:\Windows\System32\spoolsv.exe
                                      3⤵
                                        PID:1072
                                      • C:\Windows\system32\taskhost.exe
                                        "taskhost.exe"
                                        3⤵
                                          PID:1080
                                        • C:\Windows\system32\svchost.exe
                                          C:\Windows\system32\svchost.exe -k LocalServiceNoNetwork
                                          3⤵
                                            PID:1160
                                          • C:\Program Files\Common Files\Microsoft Shared\OfficeSoftwareProtectionPlatform\OSPPSVC.EXE
                                            "C:\Program Files\Common Files\Microsoft Shared\OfficeSoftwareProtectionPlatform\OSPPSVC.EXE"
                                            3⤵
                                              PID:2036
                                            • C:\Windows\system32\svchost.exe
                                              C:\Windows\system32\svchost.exe -k LocalServiceAndNoImpersonation
                                              3⤵
                                                PID:2588
                                              • C:\Windows\system32\sppsvc.exe
                                                C:\Windows\system32\sppsvc.exe
                                                3⤵
                                                  PID:2476
                                              • C:\Windows\system32\lsass.exe
                                                C:\Windows\system32\lsass.exe
                                                2⤵
                                                  PID:492
                                                • C:\Windows\system32\lsm.exe
                                                  C:\Windows\system32\lsm.exe
                                                  2⤵
                                                    PID:500
                                                • 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:392
                                                  • C:\Windows\system32\winlogon.exe
                                                    winlogon.exe
                                                    1⤵
                                                      PID:432
                                                    • C:\Windows\Explorer.EXE
                                                      C:\Windows\Explorer.EXE
                                                      1⤵
                                                        PID:1152
                                                        • C:\Windows\system32\rundll32.exe
                                                          rundll32.exe C:\Users\Admin\AppData\Local\Temp\0ca3c298786daa93f170f92c00481d407ae7b73bcf853c6e2164e4589536f6b8N.dll,#1
                                                          2⤵
                                                          • Suspicious use of WriteProcessMemory
                                                          PID:2552
                                                          • C:\Windows\SysWOW64\rundll32.exe
                                                            rundll32.exe C:\Users\Admin\AppData\Local\Temp\0ca3c298786daa93f170f92c00481d407ae7b73bcf853c6e2164e4589536f6b8N.dll,#1
                                                            3⤵
                                                            • Loads dropped DLL
                                                            • Drops file in System32 directory
                                                            • System Location Discovery: System Language Discovery
                                                            • Suspicious use of AdjustPrivilegeToken
                                                            • Suspicious use of WriteProcessMemory
                                                            PID:1040
                                                            • C:\Windows\SysWOW64\rundll32mgr.exe
                                                              C:\Windows\SysWOW64\rundll32mgr.exe
                                                              4⤵
                                                              • Executes dropped EXE
                                                              • Loads dropped DLL
                                                              • Drops file in Program Files directory
                                                              • System Location Discovery: System Language Discovery
                                                              • Suspicious use of UnmapMainImage
                                                              • Suspicious use of WriteProcessMemory
                                                              PID:2088
                                                              • C:\Program Files (x86)\Microsoft\WaterMark.exe
                                                                "C:\Program Files (x86)\Microsoft\WaterMark.exe"
                                                                5⤵
                                                                • Executes dropped EXE
                                                                • System Location Discovery: System Language Discovery
                                                                • Suspicious behavior: EnumeratesProcesses
                                                                • Suspicious use of AdjustPrivilegeToken
                                                                • Suspicious use of UnmapMainImage
                                                                • Suspicious use of WriteProcessMemory
                                                                PID:1704
                                                                • 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
                                                                  • System Location Discovery: System Language Discovery
                                                                  PID:2724
                                                                • C:\Windows\SysWOW64\svchost.exe
                                                                  C:\Windows\system32\svchost.exe
                                                                  6⤵
                                                                  • System Location Discovery: System Language Discovery
                                                                  • Suspicious behavior: EnumeratesProcesses
                                                                  • Suspicious use of AdjustPrivilegeToken
                                                                  • Suspicious use of WriteProcessMemory
                                                                  PID:2688
                                                            • C:\Windows\SysWOW64\WerFault.exe
                                                              C:\Windows\SysWOW64\WerFault.exe -u -p 1040 -s 224
                                                              4⤵
                                                              • Program crash
                                                              • Suspicious use of AdjustPrivilegeToken
                                                              PID:1660

                                                      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 299KB
                                                            • SHA256 928f54025f6fadc9ac3f818da5100f20349a28a42f9516e9a48afba3e5029eb5
                                                            • 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 295KB
                                                            • SHA256 1115d94c3dae5241c1efab438710a1f5cbeff021a4b866dbe4863751bc4b818b
                                                            • MD5 SHA1 SHA512 SSDEEP

                                                            rundll32mgr.exe

                                                            • Path C:\Windows\SysWOW64\rundll32mgr.exe
                                                            • Size 143KB
                                                            • SHA256 be71c16ee9e9ea295cf6f266ddf343c4589843e4288a09f60f9e15923d8f8313
                                                            • MD5 SHA1 SHA512 SSDEEP

                                                            memory/1040-429-0x0000000010000000-0x0000000010052000-memory.dmp

                                                            memory/1040-2-0x0000000010000000-0x0000000010052000-memory.dmp

                                                            memory/1040-11-0x00000000001D0000-0x00000000001FF000-memory.dmp

                                                            memory/1040-0-0x0000000010000000-0x0000000010052000-memory.dmp

                                                            memory/1040-10-0x00000000001D0000-0x00000000001FF000-memory.dmp

                                                            memory/1704-73-0x00000000003D0000-0x00000000003D1000-memory.dmp

                                                            memory/1704-692-0x0000000000400000-0x0000000000421000-memory.dmp

                                                            memory/1704-41-0x0000000000400000-0x0000000000421000-memory.dmp

                                                            memory/1704-91-0x00000000779EF000-0x00000000779F0000-memory.dmp

                                                            memory/1704-43-0x00000000779EF000-0x00000000779F0000-memory.dmp

                                                            memory/1704-42-0x00000000003C0000-0x00000000003C1000-memory.dmp

                                                            memory/1704-85-0x0000000000400000-0x0000000000421000-memory.dmp

                                                            memory/2088-21-0x0000000000400000-0x0000000000421000-memory.dmp

                                                            memory/2088-12-0x0000000000400000-0x000000000042F000-memory.dmp

                                                            memory/2088-13-0x0000000000400000-0x0000000000421000-memory.dmp

                                                            memory/2088-14-0x0000000000400000-0x0000000000421000-memory.dmp

                                                            memory/2088-15-0x0000000000400000-0x0000000000421000-memory.dmp

                                                            memory/2088-19-0x0000000000400000-0x0000000000421000-memory.dmp

                                                            memory/2088-27-0x0000000000050000-0x000000000007F000-memory.dmp

                                                            memory/2088-22-0x0000000000400000-0x0000000000421000-memory.dmp

                                                            memory/2088-17-0x0000000000140000-0x0000000000141000-memory.dmp

                                                            memory/2088-16-0x0000000000400000-0x0000000000421000-memory.dmp

                                                            memory/2688-96-0x0000000020010000-0x000000002001B000-memory.dmp

                                                            memory/2688-95-0x00000000001F0000-0x00000000001F1000-memory.dmp

                                                            memory/2688-90-0x0000000020010000-0x000000002001B000-memory.dmp

                                                            memory/2688-75-0x0000000020010000-0x000000002001B000-memory.dmp

                                                            memory/2688-92-0x00000000001E0000-0x00000000001E1000-memory.dmp

                                                            memory/2688-86-0x0000000020010000-0x000000002001B000-memory.dmp

                                                            memory/2688-93-0x0000000020010000-0x000000002001B000-memory.dmp

                                                            memory/2688-97-0x00000000779F0000-0x00000000779F1000-memory.dmp

                                                            memory/2688-94-0x0000000020010000-0x000000002001B000-memory.dmp

                                                            memory/2724-69-0x0000000020010000-0x0000000020022000-memory.dmp

                                                            memory/2724-62-0x0000000020010000-0x0000000020022000-memory.dmp

                                                            memory/2724-64-0x0000000020010000-0x0000000020022000-memory.dmp

                                                            memory/2724-61-0x00000000000D0000-0x00000000000D1000-memory.dmp

                                                            memory/2724-57-0x0000000020010000-0x0000000020022000-memory.dmp

                                                            memory/2724-426-0x0000000020010000-0x0000000020022000-memory.dmp

                                                            memory/2724-55-0x00000000000E0000-0x00000000000E1000-memory.dmp

                                                            memory/2724-56-0x00000000000C0000-0x00000000000C1000-memory.dmp

                                                            memory/2724-45-0x0000000020010000-0x0000000020022000-memory.dmp

                                                            memory/2724-47-0x00000000000C0000-0x00000000000C1000-memory.dmp