Analysis

  • max time kernel
    120s
  • max time network
    74s
  • platform
    windows7_x64
  • resource
    win7-20241023-en
  • resource tags

    arch:x64arch:x86image:win7-20241023-enlocale:en-usos:windows7-x64system
  • submitted
    26-12-2024 00:41

General

  • Target

    8b4886165e2977c191ba7caa160ef0e54e7dfaa6108bcdb91ad364abc16c7751N.dll

  • Size

    444KB

  • MD5

    b3e8997a3e2919d916930e4121931220

  • SHA1

    3deb3acb590cc1178733f3273682571c271e58e4

  • SHA256

    8b4886165e2977c191ba7caa160ef0e54e7dfaa6108bcdb91ad364abc16c7751

  • SHA512

    579e7d4bf4199841b74fbd37a56bcdd6638233bb5f4cbf55536975f9152e917d4ccaba756c561d788763a95835d066bb8ca1a3c3070cb325135fe9af0f851f32

  • SSDEEP

    12288:KXo450qjYthuCNIm/kqF6a2FjyHIDiAstWeO5xzb6:7/ku6FjyHe5KOP/

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 2 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 6 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:612
                  • C:\Windows\system32\wbem\wmiprvse.exe
                    C:\Windows\system32\wbem\wmiprvse.exe
                    4⤵
                      PID:1584
                    • C:\Windows\system32\DllHost.exe
                      C:\Windows\system32\DllHost.exe /Processid:{3EB3C877-1F16-487C-9050-104DBCD66683}
                      4⤵
                        PID:672
                      • C:\Windows\system32\wbem\wmiprvse.exe
                        C:\Windows\system32\wbem\wmiprvse.exe -Embedding
                        4⤵
                          PID:2348
                      • C:\Windows\system32\svchost.exe
                        C:\Windows\system32\svchost.exe -k RPCSS
                        3⤵
                          PID:688
                        • C:\Windows\System32\svchost.exe
                          C:\Windows\System32\svchost.exe -k LocalServiceNetworkRestricted
                          3⤵
                            PID:760
                          • C:\Windows\System32\svchost.exe
                            C:\Windows\System32\svchost.exe -k LocalSystemNetworkRestricted
                            3⤵
                              PID:824
                              • 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:852
                                  • \\?\C:\Windows\system32\wbem\WMIADAP.EXE
                                    wmiadap.exe /F /T /R
                                    4⤵
                                      PID:2220
                                  • C:\Windows\system32\svchost.exe
                                    C:\Windows\system32\svchost.exe -k LocalService
                                    3⤵
                                      PID:980
                                    • C:\Windows\system32\svchost.exe
                                      C:\Windows\system32\svchost.exe -k NetworkService
                                      3⤵
                                        PID:268
                                      • C:\Windows\System32\spoolsv.exe
                                        C:\Windows\System32\spoolsv.exe
                                        3⤵
                                          PID:300
                                        • C:\Windows\system32\svchost.exe
                                          C:\Windows\system32\svchost.exe -k LocalServiceNoNetwork
                                          3⤵
                                            PID:1080
                                          • C:\Windows\system32\taskhost.exe
                                            "taskhost.exe"
                                            3⤵
                                              PID:1124
                                            • C:\Program Files\Common Files\Microsoft Shared\OfficeSoftwareProtectionPlatform\OSPPSVC.EXE
                                              "C:\Program Files\Common Files\Microsoft Shared\OfficeSoftwareProtectionPlatform\OSPPSVC.EXE"
                                              3⤵
                                                PID:1532
                                              • C:\Windows\system32\svchost.exe
                                                C:\Windows\system32\svchost.exe -k LocalServiceAndNoImpersonation
                                                3⤵
                                                  PID:1044
                                                • C:\Windows\system32\sppsvc.exe
                                                  C:\Windows\system32\sppsvc.exe
                                                  3⤵
                                                    PID:2504
                                                • 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:396
                                                    • C:\Windows\system32\winlogon.exe
                                                      winlogon.exe
                                                      1⤵
                                                        PID:432
                                                      • C:\Windows\Explorer.EXE
                                                        C:\Windows\Explorer.EXE
                                                        1⤵
                                                          PID:1212
                                                          • C:\Windows\system32\rundll32.exe
                                                            rundll32.exe C:\Users\Admin\AppData\Local\Temp\8b4886165e2977c191ba7caa160ef0e54e7dfaa6108bcdb91ad364abc16c7751N.dll,#1
                                                            2⤵
                                                            • Suspicious use of WriteProcessMemory
                                                            PID:1268
                                                            • C:\Windows\SysWOW64\rundll32.exe
                                                              rundll32.exe C:\Users\Admin\AppData\Local\Temp\8b4886165e2977c191ba7caa160ef0e54e7dfaa6108bcdb91ad364abc16c7751N.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:2652
                                                              • C:\Windows\SysWOW64\rundll32Srv.exe
                                                                C:\Windows\SysWOW64\rundll32Srv.exe
                                                                4⤵
                                                                • Executes dropped EXE
                                                                • Loads dropped DLL
                                                                • Drops file in Program Files directory
                                                                • System Location Discovery: System Language Discovery
                                                                • Suspicious use of WriteProcessMemory
                                                                PID:1512
                                                                • 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 WriteProcessMemory
                                                                  PID:2012
                                                                  • 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
                                                                    • Suspicious use of AdjustPrivilegeToken
                                                                    PID:2836
                                                                  • 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:2988
                                                              • C:\Windows\SysWOW64\WerFault.exe
                                                                C:\Windows\SysWOW64\WerFault.exe -u -p 2652 -s 276
                                                                4⤵
                                                                • Program crash
                                                                • Suspicious use of AdjustPrivilegeToken
                                                                PID:1396

                                                        Network

                                                        MITRE ATT&CK Enterprise v15

                                                        Replay Monitor

                                                        Loading Replay Monitor...

                                                        Downloads

                                                        • C:\Program Files\Java\jdk1.7.0_80\lib\missioncontrol\features\org.eclipse.ecf.filetransfer.httpclient4.feature_3.9.1.v20140827-1444\epl-v10.html

                                                          Filesize

                                                          147KB

                                                          MD5

                                                          ba0c132e6d78f8f7b405633d5e1c3b49

                                                          SHA1

                                                          6fc340ed508c830536d81dd35c4de31f2a311b7b

                                                          SHA256

                                                          845a3fb2161a518cc3f9d672f60b464caf2bcb9828e0a8d1a41de99056094820

                                                          SHA512

                                                          30569fb36ae8a7d7948ab6dce33269c0ddbab4fa887414ee9afca2c1f1531b01182eb19a06498fb82b5e4404672a5eb4d722fd61578128d7affb49470ab41d19

                                                        • C:\Program Files\Java\jdk1.7.0_80\lib\missioncontrol\features\org.eclipse.ecf.filetransfer.httpclient4.feature_3.9.1.v20140827-1444\license.html

                                                          Filesize

                                                          144KB

                                                          MD5

                                                          c0038de1ec8e010f79228d08dbe6fec0

                                                          SHA1

                                                          dec2530dd7fde5b3064f166515cb7b49deaf7a50

                                                          SHA256

                                                          6f4d7f48c13c6ebf61248c0b563358c13749bfe6727cfc81dd76f7c0c8198269

                                                          SHA512

                                                          52392497b4fb7408f440ad60ea6b23cb2d71091c2e9e8614257e8be9be9bca653bb37ef174815a38497b1a4a6e346ff674bf649148d97ab379909c4a24b9cfc9

                                                        • \Windows\SysWOW64\rundll32Srv.exe

                                                          Filesize

                                                          67KB

                                                          MD5

                                                          ce9076b388d0d859a1dbedb92c00f876

                                                          SHA1

                                                          0f1a621d667f851a81c25f1adba89f3872ac6eeb

                                                          SHA256

                                                          32c21048d6c384be965ca83d554fb142ea0ca798cc1a552f8e800e75aae142f6

                                                          SHA512

                                                          f52a96c155047fb4cea09f8c6d44db8e0bb267c7829812eefe126d787f3197ed27f45d48eff440d8f9dacf71cd518667064f59bf334f2c871f88354ca60ad293

                                                        • memory/1512-19-0x0000000000400000-0x0000000000472000-memory.dmp

                                                          Filesize

                                                          456KB

                                                        • memory/2012-21-0x00000000003E0000-0x00000000003E1000-memory.dmp

                                                          Filesize

                                                          4KB

                                                        • memory/2012-22-0x0000000020010000-0x0000000020021000-memory.dmp

                                                          Filesize

                                                          68KB

                                                        • memory/2012-44-0x00000000003F0000-0x00000000003F1000-memory.dmp

                                                          Filesize

                                                          4KB

                                                        • memory/2652-8-0x0000000010000000-0x00000000126A7000-memory.dmp

                                                          Filesize

                                                          38.7MB

                                                        • memory/2652-9-0x0000000010000000-0x00000000126A7000-memory.dmp

                                                          Filesize

                                                          38.7MB

                                                        • memory/2652-429-0x0000000010000000-0x00000000126A7000-memory.dmp

                                                          Filesize

                                                          38.7MB

                                                        • memory/2836-37-0x0000000020010000-0x0000000020021000-memory.dmp

                                                          Filesize

                                                          68KB

                                                        • memory/2836-41-0x0000000020010000-0x0000000020021000-memory.dmp

                                                          Filesize

                                                          68KB

                                                        • memory/2836-33-0x0000000020010000-0x0000000020021000-memory.dmp

                                                          Filesize

                                                          68KB

                                                        • memory/2836-23-0x0000000020010000-0x0000000020021000-memory.dmp

                                                          Filesize

                                                          68KB

                                                        • memory/2836-25-0x00000000000C0000-0x00000000000C1000-memory.dmp

                                                          Filesize

                                                          4KB

                                                        • memory/2988-46-0x0000000020010000-0x000000002001B000-memory.dmp

                                                          Filesize

                                                          44KB

                                                        • memory/2988-57-0x0000000020010000-0x000000002001B000-memory.dmp

                                                          Filesize

                                                          44KB

                                                        • memory/2988-62-0x0000000020010000-0x000000002001B000-memory.dmp

                                                          Filesize

                                                          44KB

                                                        • memory/2988-61-0x0000000020010000-0x000000002001B000-memory.dmp

                                                          Filesize

                                                          44KB

                                                        • memory/2988-60-0x0000000000220000-0x0000000000221000-memory.dmp

                                                          Filesize

                                                          4KB

                                                        • memory/2988-59-0x0000000020010000-0x000000002001B000-memory.dmp

                                                          Filesize

                                                          44KB

                                                        • memory/2988-63-0x0000000000230000-0x0000000000231000-memory.dmp

                                                          Filesize

                                                          4KB

                                                        • memory/2988-64-0x0000000020010000-0x000000002001B000-memory.dmp

                                                          Filesize

                                                          44KB