Analysis

  • max time kernel
    150s
  • max time network
    150s
  • platform
    windows7_x64
  • resource
    win7-20240903-en
  • resource tags

    arch:x64arch:x86image:win7-20240903-enlocale:en-usos:windows7-x64system
  • submitted
    02-01-2025 12:07

General

  • Target

    2025-01-02_a93bb9fd70683bafc6d68f535ef1bff0_wannacry.exe

  • Size

    5.0MB

  • MD5

    a93bb9fd70683bafc6d68f535ef1bff0

  • SHA1

    c7187aef707e47268f399d2fe8397b2a18b7aa0f

  • SHA256

    9479907a9adde4fead17ec9357a5ae3313b826e8373a956ca49fd052b5fa4505

  • SHA512

    cb4883ea5fc5e5d94f8b04b50fc92e0ee3b958a48e563110a647069e8376837aa29bb3b985cc4b7640821b7179cf6024644b442f3e74e2d492924b8c11a0bcae

  • SSDEEP

    49152:6njQqMSPbcBVQej/1INRx+TSqTdX1HkQo6SAK:W8qPoBhz1aRxcSUDk36SA

Malware Config

Signatures

  • Wannacry

    WannaCry is a ransomware cryptoworm.

  • Wannacry family
  • Contacts a large (3163) amount of remote hosts 1 TTPs

    This may indicate a network scan to discover remotely running services.

  • Creates a large amount of network flows 1 TTPs

    This may indicate a network scan to discover remotely running services.

  • Drops file in System32 directory 1 IoCs
  • Drops file in Windows directory 1 IoCs
  • System Location Discovery: System Language Discovery 1 TTPs 2 IoCs

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

  • Modifies data under HKEY_USERS 1 IoCs
  • Suspicious behavior: EnumeratesProcesses 2 IoCs
  • Suspicious behavior: MapViewOfSection 48 IoCs
  • Suspicious use of AdjustPrivilegeToken 2 IoCs
  • Suspicious use of WriteProcessMemory 64 IoCs

Processes

  • C:\Windows\system32\wininit.exe
    wininit.exe
    1⤵
      PID:380
      • 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:596
              • C:\Windows\system32\wbem\wmiprvse.exe
                C:\Windows\system32\wbem\wmiprvse.exe
                4⤵
                  PID:1016
                • C:\Windows\system32\DllHost.exe
                  C:\Windows\system32\DllHost.exe /Processid:{3EB3C877-1F16-487C-9050-104DBCD66683}
                  4⤵
                    PID:1760
                • 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:760
                    • C:\Windows\System32\svchost.exe
                      C:\Windows\System32\svchost.exe -k LocalSystemNetworkRestricted
                      3⤵
                        PID:820
                        • C:\Windows\system32\Dwm.exe
                          "C:\Windows\system32\Dwm.exe"
                          4⤵
                            PID:1084
                        • C:\Windows\system32\svchost.exe
                          C:\Windows\system32\svchost.exe -k netsvcs
                          3⤵
                            PID:860
                          • C:\Windows\system32\svchost.exe
                            C:\Windows\system32\svchost.exe -k LocalService
                            3⤵
                              PID:976
                            • C:\Windows\system32\svchost.exe
                              C:\Windows\system32\svchost.exe -k NetworkService
                              3⤵
                                PID:268
                              • C:\Windows\system32\taskhost.exe
                                "taskhost.exe"
                                3⤵
                                  PID:1056
                                • C:\Windows\System32\spoolsv.exe
                                  C:\Windows\System32\spoolsv.exe
                                  3⤵
                                    PID:1064
                                  • C:\Windows\system32\svchost.exe
                                    C:\Windows\system32\svchost.exe -k LocalServiceNoNetwork
                                    3⤵
                                      PID:1132
                                    • C:\Program Files\Common Files\Microsoft Shared\OfficeSoftwareProtectionPlatform\OSPPSVC.EXE
                                      "C:\Program Files\Common Files\Microsoft Shared\OfficeSoftwareProtectionPlatform\OSPPSVC.EXE"
                                      3⤵
                                        PID:752
                                      • C:\Windows\system32\svchost.exe
                                        C:\Windows\system32\svchost.exe -k LocalServiceAndNoImpersonation
                                        3⤵
                                          PID:2760
                                        • C:\Windows\system32\sppsvc.exe
                                          C:\Windows\system32\sppsvc.exe
                                          3⤵
                                            PID:2380
                                          • C:\Users\Admin\AppData\Local\Temp\2025-01-02_a93bb9fd70683bafc6d68f535ef1bff0_wannacry.exe
                                            C:\Users\Admin\AppData\Local\Temp\2025-01-02_a93bb9fd70683bafc6d68f535ef1bff0_wannacry.exe -m security
                                            3⤵
                                            • Drops file in System32 directory
                                            • System Location Discovery: System Language Discovery
                                            • Modifies data under HKEY_USERS
                                            • Suspicious behavior: EnumeratesProcesses
                                            • Suspicious behavior: MapViewOfSection
                                            • Suspicious use of AdjustPrivilegeToken
                                            PID:2232
                                        • C:\Windows\system32\lsass.exe
                                          C:\Windows\system32\lsass.exe
                                          2⤵
                                            PID:484
                                          • C:\Windows\system32\lsm.exe
                                            C:\Windows\system32\lsm.exe
                                            2⤵
                                              PID:492
                                          • 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:1176
                                                  • C:\Users\Admin\AppData\Local\Temp\2025-01-02_a93bb9fd70683bafc6d68f535ef1bff0_wannacry.exe
                                                    "C:\Users\Admin\AppData\Local\Temp\2025-01-02_a93bb9fd70683bafc6d68f535ef1bff0_wannacry.exe"
                                                    2⤵
                                                    • Drops file in Windows directory
                                                    • System Location Discovery: System Language Discovery
                                                    • Suspicious behavior: EnumeratesProcesses
                                                    • Suspicious behavior: MapViewOfSection
                                                    • Suspicious use of AdjustPrivilegeToken
                                                    • Suspicious use of WriteProcessMemory
                                                    PID:2496
                                                • C:\Users\Admin\AppData\Local\Temp\3285376199\zmstage.exe
                                                  C:\Users\Admin\AppData\Local\Temp\3285376199\zmstage.exe
                                                  1⤵
                                                    PID:2096

                                                  Network

                                                  MITRE ATT&CK Enterprise v15

                                                  Replay Monitor

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                                                  Downloads

                                                  • memory/2232-4-0x0000000000400000-0x0000000000A73000-memory.dmp

                                                    Filesize

                                                    6.4MB

                                                  • memory/2232-10-0x0000000000400000-0x0000000000A73000-memory.dmp

                                                    Filesize

                                                    6.4MB

                                                  • memory/2496-0-0x0000000000400000-0x0000000000A73000-memory.dmp

                                                    Filesize

                                                    6.4MB

                                                  • memory/2496-2-0x00000000775BF000-0x00000000775C0000-memory.dmp

                                                    Filesize

                                                    4KB

                                                  • memory/2496-1-0x00000000775C0000-0x00000000775C1000-memory.dmp

                                                    Filesize

                                                    4KB

                                                  • memory/2496-7-0x000000007EF90000-0x000000007EF9C000-memory.dmp

                                                    Filesize

                                                    48KB

                                                  • memory/2496-6-0x00000000775BF000-0x00000000775C0000-memory.dmp

                                                    Filesize

                                                    4KB

                                                  • memory/2496-5-0x00000000775C0000-0x00000000775C1000-memory.dmp

                                                    Filesize

                                                    4KB

                                                  • memory/2496-9-0x000000007EF90000-0x000000007EF9C000-memory.dmp

                                                    Filesize

                                                    48KB

                                                  • memory/2496-8-0x0000000000400000-0x0000000000A73000-memory.dmp

                                                    Filesize

                                                    6.4MB