Analysis

  • max time kernel
    43s
  • max time network
    47s
  • platform
    windows7_x64
  • resource
    win7-20220812-en
  • resource tags

    arch:x64arch:x86image:win7-20220812-enlocale:en-usos:windows7-x64system
  • submitted
    23-11-2022 10:34

General

  • Target

    0b0377b299889d4a9eb000156407280f326111dabd569cdfd0028cc27f350353.exe

  • Size

    603KB

  • MD5

    7a0794ca24dfa00e6ae83651fb9b04d0

  • SHA1

    13e9153d40620914b465e809a5741f6154356c90

  • SHA256

    0b0377b299889d4a9eb000156407280f326111dabd569cdfd0028cc27f350353

  • SHA512

    c40279ace669402327ce9cf021237d7ee4f2ad1d2bea1150ce560db6a5dc0966d53d3621b30b15680ff929a8f2e1f8742e0b49a8e59e5e07876b0decfbfc8d89

  • SSDEEP

    12288:yIny5DYTfInuSgHc89zcPYjV6iYzPNGNbEsjB:0UTf8uB88VcPJiYbNAbEsd

Score
8/10

Malware Config

Signatures

  • Drops file in Drivers directory 1 IoCs
  • Executes dropped EXE 5 IoCs
  • Loads dropped DLL 13 IoCs
  • Checks installed software on the system 1 TTPs

    Looks up Uninstall key entries in the registry to enumerate software on the system.

  • Drops file in System32 directory 5 IoCs
  • Drops file in Program Files directory 3 IoCs
  • Enumerates physical storage devices 1 TTPs

    Attempts to interact with connected storage/optical drive(s). Likely ransomware behaviour.

  • Runs net.exe
  • Suspicious behavior: LoadsDriver 1 IoCs
  • Suspicious use of AdjustPrivilegeToken 1 IoCs
  • Suspicious use of WriteProcessMemory 50 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\0b0377b299889d4a9eb000156407280f326111dabd569cdfd0028cc27f350353.exe
    "C:\Users\Admin\AppData\Local\Temp\0b0377b299889d4a9eb000156407280f326111dabd569cdfd0028cc27f350353.exe"
    1⤵
    • Drops file in Drivers directory
    • Loads dropped DLL
    • Drops file in System32 directory
    • Drops file in Program Files directory
    • Suspicious use of WriteProcessMemory
    PID:1372
    • C:\Windows\SysWOW64\net.exe
      net stop nethttpservice
      2⤵
      • Suspicious use of WriteProcessMemory
      PID:1640
      • C:\Windows\SysWOW64\net1.exe
        C:\Windows\system32\net1 stop nethttpservice
        3⤵
          PID:2004
      • C:\Windows\SysWOW64\net.exe
        net stop serviceupdater
        2⤵
        • Suspicious use of WriteProcessMemory
        PID:1416
        • C:\Windows\SysWOW64\net1.exe
          C:\Windows\system32\net1 stop serviceupdater
          3⤵
            PID:1972
        • C:\Windows\SysWOW64\installd.exe
          "C:\Windows\system32\installd.exe" nethfdrv
          2⤵
          • Executes dropped EXE
          • Loads dropped DLL
          PID:1992
        • C:\Windows\SysWOW64\nethtsrv.exe
          "C:\Windows\system32\nethtsrv.exe" -nfdi
          2⤵
          • Executes dropped EXE
          • Loads dropped DLL
          PID:696
        • C:\Windows\SysWOW64\netupdsrv.exe
          "C:\Windows\system32\netupdsrv.exe" -nfdi
          2⤵
          • Executes dropped EXE
          PID:1528
        • C:\Windows\SysWOW64\net.exe
          net start nethttpservice
          2⤵
          • Suspicious use of WriteProcessMemory
          PID:1872
          • C:\Windows\SysWOW64\net1.exe
            C:\Windows\system32\net1 start nethttpservice
            3⤵
              PID:2040
          • C:\Windows\SysWOW64\net.exe
            net start serviceupdater
            2⤵
            • Suspicious use of WriteProcessMemory
            PID:1056
            • C:\Windows\SysWOW64\net1.exe
              C:\Windows\system32\net1 start serviceupdater
              3⤵
                PID:1296
          • C:\Windows\SysWOW64\nethtsrv.exe
            C:\Windows\SysWOW64\nethtsrv.exe
            1⤵
            • Executes dropped EXE
            • Loads dropped DLL
            • Suspicious use of AdjustPrivilegeToken
            PID:1096
          • C:\Windows\SysWOW64\netupdsrv.exe
            C:\Windows\SysWOW64\netupdsrv.exe
            1⤵
            • Executes dropped EXE
            PID:1064

          Network

          MITRE ATT&CK Enterprise v6

          Replay Monitor

          Loading Replay Monitor...

          Downloads

          • C:\Windows\SysWOW64\hfnapi.dll

            Filesize

            106KB

            MD5

            3065d5ec883614cc002a04e21002489e

            SHA1

            614f471d95e94d71e7f51e111b0e647aa2b208cb

            SHA256

            665f242f4baabea946a47a5a850d1cf15e3d5d0425a5e3cad63a5b83d0da1316

            SHA512

            a880884b81f9ecb94e30ffcaa3816d1b6f60963500bed7fe3e978a4b1cbb93b6225416193a73bf0a6898159f1c769f8402eccc2a829d441f982d37c70a76c6ab

          • C:\Windows\SysWOW64\hfpapi.dll

            Filesize

            244KB

            MD5

            86b956f3747df38625b40cf6f319b905

            SHA1

            437956d72598a46b8e637f3ce09bf41bc80b8391

            SHA256

            626adc8cef5f0b7966a3f40a62891954db3199bd049ed23af4dfe951029d4477

            SHA512

            210496aadcee650f013d233ed42e34283393f3e029dd79c966081118b96897604b4101bf61703c75e616034a1351a351c6c1df9d3c76badde3331f1a922692f0

          • C:\Windows\SysWOW64\installd.exe

            Filesize

            108KB

            MD5

            1ba6b596970900996e2e80fb5d5ab688

            SHA1

            367025d28a2845414891d832e12a1a3169f4f920

            SHA256

            db2609ba58acab2b1674762bfa5221e697780733e21d3219d8c5ebd4e390a703

            SHA512

            0f1969cba595befff4737f33c08baffed66fbf63cebe4aa5cb888998e97e216c5522b6ce14e000295614ae7e67bd860dadab5318e1402f460c67dd2e362c9ee9

          • C:\Windows\SysWOW64\nethtsrv.exe

            Filesize

            176KB

            MD5

            eea7a143e420e14777ecf8e755b86ed5

            SHA1

            3da53ad115d0153bfd573a36c14ccf0e7afa7449

            SHA256

            966bf397f730c5e5223c9f06e2a7b76a1aea22ca13452e966f37a239687c9d17

            SHA512

            5fc6c5b4a7324ec97000be995be518165790c610bb0a80b1553ffc390b576042b8c94333bd6c58d5af48fa84f926a136e08345d55a0acd38a88fbc02e8d31e9f

          • C:\Windows\SysWOW64\nethtsrv.exe

            Filesize

            176KB

            MD5

            eea7a143e420e14777ecf8e755b86ed5

            SHA1

            3da53ad115d0153bfd573a36c14ccf0e7afa7449

            SHA256

            966bf397f730c5e5223c9f06e2a7b76a1aea22ca13452e966f37a239687c9d17

            SHA512

            5fc6c5b4a7324ec97000be995be518165790c610bb0a80b1553ffc390b576042b8c94333bd6c58d5af48fa84f926a136e08345d55a0acd38a88fbc02e8d31e9f

          • C:\Windows\SysWOW64\netupdsrv.exe

            Filesize

            158KB

            MD5

            1a139f394892196bfc2fecb229a2f053

            SHA1

            53e5fa609d6ff140c743af4efdd02dce37263bf7

            SHA256

            8a1d1bebf68493c0d5c901dafab9a19b2cee1db6738e2b72f8dc2d33eda90d59

            SHA512

            618d4ce080547ed914253d9446f43a63467d55eba217b6ca2626b97ec8fe169dcf0ec24f38a133f44b589d9ced71d3af229d89ae71c211eab6f03c76c712d70d

          • C:\Windows\SysWOW64\netupdsrv.exe

            Filesize

            158KB

            MD5

            1a139f394892196bfc2fecb229a2f053

            SHA1

            53e5fa609d6ff140c743af4efdd02dce37263bf7

            SHA256

            8a1d1bebf68493c0d5c901dafab9a19b2cee1db6738e2b72f8dc2d33eda90d59

            SHA512

            618d4ce080547ed914253d9446f43a63467d55eba217b6ca2626b97ec8fe169dcf0ec24f38a133f44b589d9ced71d3af229d89ae71c211eab6f03c76c712d70d

          • \Users\Admin\AppData\Local\Temp\nsyFAC6.tmp\System.dll

            Filesize

            11KB

            MD5

            c17103ae9072a06da581dec998343fc1

            SHA1

            b72148c6bdfaada8b8c3f950e610ee7cf1da1f8d

            SHA256

            dc58d8ad81cacb0c1ed72e33bff8f23ea40b5252b5bb55d393a0903e6819ae2f

            SHA512

            d32a71aaef18e993f28096d536e41c4d016850721b31171513ce28bbd805a54fd290b7c3e9d935f72e676a1acfb4f0dcc89d95040a0dd29f2b6975855c18986f

          • \Users\Admin\AppData\Local\Temp\nsyFAC6.tmp\nsExec.dll

            Filesize

            6KB

            MD5

            acc2b699edfea5bf5aae45aba3a41e96

            SHA1

            d2accf4d494e43ceb2cff69abe4dd17147d29cc2

            SHA256

            168a974eaa3f588d759db3f47c1a9fdc3494ba1fa1a73a84e5e3b2a4d58abd7e

            SHA512

            e29ea10ada98c71a18273b04f44f385b120d4e8473e441ce5748cfa44a23648814f2656f429b85440157988c88de776c6ac008dc38bf09cbb746c230a46c69fe

          • \Users\Admin\AppData\Local\Temp\nsyFAC6.tmp\nsExec.dll

            Filesize

            6KB

            MD5

            acc2b699edfea5bf5aae45aba3a41e96

            SHA1

            d2accf4d494e43ceb2cff69abe4dd17147d29cc2

            SHA256

            168a974eaa3f588d759db3f47c1a9fdc3494ba1fa1a73a84e5e3b2a4d58abd7e

            SHA512

            e29ea10ada98c71a18273b04f44f385b120d4e8473e441ce5748cfa44a23648814f2656f429b85440157988c88de776c6ac008dc38bf09cbb746c230a46c69fe

          • \Users\Admin\AppData\Local\Temp\nsyFAC6.tmp\nsExec.dll

            Filesize

            6KB

            MD5

            acc2b699edfea5bf5aae45aba3a41e96

            SHA1

            d2accf4d494e43ceb2cff69abe4dd17147d29cc2

            SHA256

            168a974eaa3f588d759db3f47c1a9fdc3494ba1fa1a73a84e5e3b2a4d58abd7e

            SHA512

            e29ea10ada98c71a18273b04f44f385b120d4e8473e441ce5748cfa44a23648814f2656f429b85440157988c88de776c6ac008dc38bf09cbb746c230a46c69fe

          • \Users\Admin\AppData\Local\Temp\nsyFAC6.tmp\nsExec.dll

            Filesize

            6KB

            MD5

            acc2b699edfea5bf5aae45aba3a41e96

            SHA1

            d2accf4d494e43ceb2cff69abe4dd17147d29cc2

            SHA256

            168a974eaa3f588d759db3f47c1a9fdc3494ba1fa1a73a84e5e3b2a4d58abd7e

            SHA512

            e29ea10ada98c71a18273b04f44f385b120d4e8473e441ce5748cfa44a23648814f2656f429b85440157988c88de776c6ac008dc38bf09cbb746c230a46c69fe

          • \Windows\SysWOW64\hfnapi.dll

            Filesize

            106KB

            MD5

            3065d5ec883614cc002a04e21002489e

            SHA1

            614f471d95e94d71e7f51e111b0e647aa2b208cb

            SHA256

            665f242f4baabea946a47a5a850d1cf15e3d5d0425a5e3cad63a5b83d0da1316

            SHA512

            a880884b81f9ecb94e30ffcaa3816d1b6f60963500bed7fe3e978a4b1cbb93b6225416193a73bf0a6898159f1c769f8402eccc2a829d441f982d37c70a76c6ab

          • \Windows\SysWOW64\hfnapi.dll

            Filesize

            106KB

            MD5

            3065d5ec883614cc002a04e21002489e

            SHA1

            614f471d95e94d71e7f51e111b0e647aa2b208cb

            SHA256

            665f242f4baabea946a47a5a850d1cf15e3d5d0425a5e3cad63a5b83d0da1316

            SHA512

            a880884b81f9ecb94e30ffcaa3816d1b6f60963500bed7fe3e978a4b1cbb93b6225416193a73bf0a6898159f1c769f8402eccc2a829d441f982d37c70a76c6ab

          • \Windows\SysWOW64\hfnapi.dll

            Filesize

            106KB

            MD5

            3065d5ec883614cc002a04e21002489e

            SHA1

            614f471d95e94d71e7f51e111b0e647aa2b208cb

            SHA256

            665f242f4baabea946a47a5a850d1cf15e3d5d0425a5e3cad63a5b83d0da1316

            SHA512

            a880884b81f9ecb94e30ffcaa3816d1b6f60963500bed7fe3e978a4b1cbb93b6225416193a73bf0a6898159f1c769f8402eccc2a829d441f982d37c70a76c6ab

          • \Windows\SysWOW64\hfpapi.dll

            Filesize

            244KB

            MD5

            86b956f3747df38625b40cf6f319b905

            SHA1

            437956d72598a46b8e637f3ce09bf41bc80b8391

            SHA256

            626adc8cef5f0b7966a3f40a62891954db3199bd049ed23af4dfe951029d4477

            SHA512

            210496aadcee650f013d233ed42e34283393f3e029dd79c966081118b96897604b4101bf61703c75e616034a1351a351c6c1df9d3c76badde3331f1a922692f0

          • \Windows\SysWOW64\hfpapi.dll

            Filesize

            244KB

            MD5

            86b956f3747df38625b40cf6f319b905

            SHA1

            437956d72598a46b8e637f3ce09bf41bc80b8391

            SHA256

            626adc8cef5f0b7966a3f40a62891954db3199bd049ed23af4dfe951029d4477

            SHA512

            210496aadcee650f013d233ed42e34283393f3e029dd79c966081118b96897604b4101bf61703c75e616034a1351a351c6c1df9d3c76badde3331f1a922692f0

          • \Windows\SysWOW64\installd.exe

            Filesize

            108KB

            MD5

            1ba6b596970900996e2e80fb5d5ab688

            SHA1

            367025d28a2845414891d832e12a1a3169f4f920

            SHA256

            db2609ba58acab2b1674762bfa5221e697780733e21d3219d8c5ebd4e390a703

            SHA512

            0f1969cba595befff4737f33c08baffed66fbf63cebe4aa5cb888998e97e216c5522b6ce14e000295614ae7e67bd860dadab5318e1402f460c67dd2e362c9ee9

          • \Windows\SysWOW64\nethtsrv.exe

            Filesize

            176KB

            MD5

            eea7a143e420e14777ecf8e755b86ed5

            SHA1

            3da53ad115d0153bfd573a36c14ccf0e7afa7449

            SHA256

            966bf397f730c5e5223c9f06e2a7b76a1aea22ca13452e966f37a239687c9d17

            SHA512

            5fc6c5b4a7324ec97000be995be518165790c610bb0a80b1553ffc390b576042b8c94333bd6c58d5af48fa84f926a136e08345d55a0acd38a88fbc02e8d31e9f

          • \Windows\SysWOW64\netupdsrv.exe

            Filesize

            158KB

            MD5

            1a139f394892196bfc2fecb229a2f053

            SHA1

            53e5fa609d6ff140c743af4efdd02dce37263bf7

            SHA256

            8a1d1bebf68493c0d5c901dafab9a19b2cee1db6738e2b72f8dc2d33eda90d59

            SHA512

            618d4ce080547ed914253d9446f43a63467d55eba217b6ca2626b97ec8fe169dcf0ec24f38a133f44b589d9ced71d3af229d89ae71c211eab6f03c76c712d70d

          • memory/696-71-0x0000000000000000-mapping.dmp

          • memory/1056-87-0x0000000000000000-mapping.dmp

          • memory/1296-88-0x0000000000000000-mapping.dmp

          • memory/1372-69-0x0000000000360000-0x00000000007BE000-memory.dmp

            Filesize

            4.4MB

          • memory/1372-54-0x0000000075921000-0x0000000075923000-memory.dmp

            Filesize

            8KB

          • memory/1372-91-0x0000000000360000-0x00000000007BE000-memory.dmp

            Filesize

            4.4MB

          • memory/1372-62-0x0000000000360000-0x00000000007BE000-memory.dmp

            Filesize

            4.4MB

          • memory/1416-60-0x0000000000000000-mapping.dmp

          • memory/1528-77-0x0000000000000000-mapping.dmp

          • memory/1640-57-0x0000000000000000-mapping.dmp

          • memory/1872-81-0x0000000000000000-mapping.dmp

          • memory/1972-61-0x0000000000000000-mapping.dmp

          • memory/1992-64-0x0000000000000000-mapping.dmp

          • memory/2004-58-0x0000000000000000-mapping.dmp

          • memory/2040-82-0x0000000000000000-mapping.dmp