Analysis

  • max time kernel
    47s
  • max time network
    51s
  • platform
    windows7_x64
  • resource
    win7-20220901-en
  • resource tags

    arch:x64arch:x86image:win7-20220901-enlocale:en-usos:windows7-x64system
  • submitted
    23-11-2022 10:28

General

  • Target

    3de1cd7ccc31623210d2477794677bc9205af7c3b326caa6d1721bfd7d69be43.exe

  • Size

    603KB

  • MD5

    909de074d55f338ba4ebd8526e28282f

  • SHA1

    53da8d07eae5e3967aaa1041c863e4e1f6327fc6

  • SHA256

    3de1cd7ccc31623210d2477794677bc9205af7c3b326caa6d1721bfd7d69be43

  • SHA512

    c3554b7ab8f08e4f37298ee7f2f843a2a48788778a08bce48e5262f5bd2c575429084cc6f6af3540dd7f4e4b15a70224d915fd93be2a296ed413cc0e8a791471

  • SSDEEP

    12288:tIny5DYTmIAdNVwhNibHCjV7kZiORzKWYm0W0ljYFq/jpb/jBwfbg1+Mi:5UTmvdnwhNqHC5oYbjYFql/jBv1+Z

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\3de1cd7ccc31623210d2477794677bc9205af7c3b326caa6d1721bfd7d69be43.exe
    "C:\Users\Admin\AppData\Local\Temp\3de1cd7ccc31623210d2477794677bc9205af7c3b326caa6d1721bfd7d69be43.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:948
    • C:\Windows\SysWOW64\net.exe
      net stop nethttpservice
      2⤵
      • Suspicious use of WriteProcessMemory
      PID:2028
      • C:\Windows\SysWOW64\net1.exe
        C:\Windows\system32\net1 stop nethttpservice
        3⤵
          PID:1292
      • C:\Windows\SysWOW64\net.exe
        net stop serviceupdater
        2⤵
        • Suspicious use of WriteProcessMemory
        PID:1624
        • C:\Windows\SysWOW64\net1.exe
          C:\Windows\system32\net1 stop serviceupdater
          3⤵
            PID:800
        • C:\Windows\SysWOW64\installd.exe
          "C:\Windows\system32\installd.exe" nethfdrv
          2⤵
          • Executes dropped EXE
          • Loads dropped DLL
          PID:1520
        • C:\Windows\SysWOW64\nethtsrv.exe
          "C:\Windows\system32\nethtsrv.exe" -nfdi
          2⤵
          • Executes dropped EXE
          • Loads dropped DLL
          PID:1696
        • C:\Windows\SysWOW64\netupdsrv.exe
          "C:\Windows\system32\netupdsrv.exe" -nfdi
          2⤵
          • Executes dropped EXE
          PID:1064
        • C:\Windows\SysWOW64\net.exe
          net start nethttpservice
          2⤵
          • Suspicious use of WriteProcessMemory
          PID:2008
          • C:\Windows\SysWOW64\net1.exe
            C:\Windows\system32\net1 start nethttpservice
            3⤵
              PID:1532
          • C:\Windows\SysWOW64\net.exe
            net start serviceupdater
            2⤵
            • Suspicious use of WriteProcessMemory
            PID:1652
            • C:\Windows\SysWOW64\net1.exe
              C:\Windows\system32\net1 start serviceupdater
              3⤵
                PID:1920
          • C:\Windows\SysWOW64\nethtsrv.exe
            C:\Windows\SysWOW64\nethtsrv.exe
            1⤵
            • Executes dropped EXE
            • Loads dropped DLL
            • Suspicious use of AdjustPrivilegeToken
            PID:596
          • C:\Windows\SysWOW64\netupdsrv.exe
            C:\Windows\SysWOW64\netupdsrv.exe
            1⤵
            • Executes dropped EXE
            PID:1092

          Network

          MITRE ATT&CK Enterprise v6

          Replay Monitor

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          Downloads

          • C:\Windows\SysWOW64\hfnapi.dll

            Filesize

            106KB

            MD5

            68bac5dc9ce840edf2aa3101cfef104f

            SHA1

            60a549bd121e521f45831bbe9012ed304ffeb4e7

            SHA256

            c17ee2a03668e8a4e027a7e2dcf4daadc43b208e6cf047cdfa0cf75cf7f0a217

            SHA512

            7fac63b0f84f76fa9cbb6a344e9d0bdcb6ac9608d44c8f4946ab6cc9871742bcd4c582e53d03d65a3ceb4ce5a45c3d1fd7c3dce123212dd61178ac3de54f8de7

          • C:\Windows\SysWOW64\hfpapi.dll

            Filesize

            244KB

            MD5

            e4995787936c5723c950eb1ea4415539

            SHA1

            a3aa660b8b6c7a46e2f28ec141d2747bea138db9

            SHA256

            9e1f777894bae9e35d108ffdbab6e3218f5e5aa211178964ea3796a2f4f14118

            SHA512

            b23fa81e9a7146bc219f762b5bf8b1fb7764b5b0a6118ed3f8a97e0cb3ea387ccbf6003708935dcd76044d6a29f9c12f5e2e7501043fbc74301298ccdfab6221

          • C:\Windows\SysWOW64\installd.exe

            Filesize

            108KB

            MD5

            4114cb48e848dcc8468e2fdf860cf598

            SHA1

            33bfc0704b423d9876da96480bddc105f053a02f

            SHA256

            8494291497eacee157d922bf36731f298ef99fdc25121662fcbcb586f9e5f802

            SHA512

            792a742f8c86b153b7ab7b8b6202c3fb5fb46edd706b7483228275cfb6f3b23824e7263268df19b87a46dce069cb102419e4f5c708159204ca4d058408dde473

          • C:\Windows\SysWOW64\nethtsrv.exe

            Filesize

            176KB

            MD5

            085fb02a91b4c3965e192a7b23dd6a80

            SHA1

            861f6edcf0af0972a8fccc7453e65ed4a8f820a0

            SHA256

            252abcf92df06124cc9febb475cf9bbc490b303d5c6b437a828f9a1b15e7eb30

            SHA512

            9343f0e5a6328c2d5f2eb71bcc34ae473eb9590eb59394c02adb165be4ad72749cd13c35b2dc77d9d315e291e93e2c83724f592166deb180e847d0124c46446f

          • C:\Windows\SysWOW64\nethtsrv.exe

            Filesize

            176KB

            MD5

            085fb02a91b4c3965e192a7b23dd6a80

            SHA1

            861f6edcf0af0972a8fccc7453e65ed4a8f820a0

            SHA256

            252abcf92df06124cc9febb475cf9bbc490b303d5c6b437a828f9a1b15e7eb30

            SHA512

            9343f0e5a6328c2d5f2eb71bcc34ae473eb9590eb59394c02adb165be4ad72749cd13c35b2dc77d9d315e291e93e2c83724f592166deb180e847d0124c46446f

          • C:\Windows\SysWOW64\netupdsrv.exe

            Filesize

            158KB

            MD5

            bd3b99376b266d547162cfc09b5d94fb

            SHA1

            7c6bae9de8919bd055273ff3080c5f172098c7b9

            SHA256

            d950d9dabbd278cfc9ae9eae22c6449fabb0821b48524a2c323b2a5053c9f184

            SHA512

            4f8f814e690148d3ce8f9ccb3b7560ad52e9ab219850f6ab6a125d2a8994b74c1e09d47a929c82d93afdc1ce720aabb207884ad8e457d9ec2f8916ac70f93b33

          • C:\Windows\SysWOW64\netupdsrv.exe

            Filesize

            158KB

            MD5

            bd3b99376b266d547162cfc09b5d94fb

            SHA1

            7c6bae9de8919bd055273ff3080c5f172098c7b9

            SHA256

            d950d9dabbd278cfc9ae9eae22c6449fabb0821b48524a2c323b2a5053c9f184

            SHA512

            4f8f814e690148d3ce8f9ccb3b7560ad52e9ab219850f6ab6a125d2a8994b74c1e09d47a929c82d93afdc1ce720aabb207884ad8e457d9ec2f8916ac70f93b33

          • \Users\Admin\AppData\Local\Temp\nsoF3D4.tmp\System.dll

            Filesize

            11KB

            MD5

            c17103ae9072a06da581dec998343fc1

            SHA1

            b72148c6bdfaada8b8c3f950e610ee7cf1da1f8d

            SHA256

            dc58d8ad81cacb0c1ed72e33bff8f23ea40b5252b5bb55d393a0903e6819ae2f

            SHA512

            d32a71aaef18e993f28096d536e41c4d016850721b31171513ce28bbd805a54fd290b7c3e9d935f72e676a1acfb4f0dcc89d95040a0dd29f2b6975855c18986f

          • \Users\Admin\AppData\Local\Temp\nsoF3D4.tmp\nsExec.dll

            Filesize

            6KB

            MD5

            acc2b699edfea5bf5aae45aba3a41e96

            SHA1

            d2accf4d494e43ceb2cff69abe4dd17147d29cc2

            SHA256

            168a974eaa3f588d759db3f47c1a9fdc3494ba1fa1a73a84e5e3b2a4d58abd7e

            SHA512

            e29ea10ada98c71a18273b04f44f385b120d4e8473e441ce5748cfa44a23648814f2656f429b85440157988c88de776c6ac008dc38bf09cbb746c230a46c69fe

          • \Users\Admin\AppData\Local\Temp\nsoF3D4.tmp\nsExec.dll

            Filesize

            6KB

            MD5

            acc2b699edfea5bf5aae45aba3a41e96

            SHA1

            d2accf4d494e43ceb2cff69abe4dd17147d29cc2

            SHA256

            168a974eaa3f588d759db3f47c1a9fdc3494ba1fa1a73a84e5e3b2a4d58abd7e

            SHA512

            e29ea10ada98c71a18273b04f44f385b120d4e8473e441ce5748cfa44a23648814f2656f429b85440157988c88de776c6ac008dc38bf09cbb746c230a46c69fe

          • \Users\Admin\AppData\Local\Temp\nsoF3D4.tmp\nsExec.dll

            Filesize

            6KB

            MD5

            acc2b699edfea5bf5aae45aba3a41e96

            SHA1

            d2accf4d494e43ceb2cff69abe4dd17147d29cc2

            SHA256

            168a974eaa3f588d759db3f47c1a9fdc3494ba1fa1a73a84e5e3b2a4d58abd7e

            SHA512

            e29ea10ada98c71a18273b04f44f385b120d4e8473e441ce5748cfa44a23648814f2656f429b85440157988c88de776c6ac008dc38bf09cbb746c230a46c69fe

          • \Users\Admin\AppData\Local\Temp\nsoF3D4.tmp\nsExec.dll

            Filesize

            6KB

            MD5

            acc2b699edfea5bf5aae45aba3a41e96

            SHA1

            d2accf4d494e43ceb2cff69abe4dd17147d29cc2

            SHA256

            168a974eaa3f588d759db3f47c1a9fdc3494ba1fa1a73a84e5e3b2a4d58abd7e

            SHA512

            e29ea10ada98c71a18273b04f44f385b120d4e8473e441ce5748cfa44a23648814f2656f429b85440157988c88de776c6ac008dc38bf09cbb746c230a46c69fe

          • \Windows\SysWOW64\hfnapi.dll

            Filesize

            106KB

            MD5

            68bac5dc9ce840edf2aa3101cfef104f

            SHA1

            60a549bd121e521f45831bbe9012ed304ffeb4e7

            SHA256

            c17ee2a03668e8a4e027a7e2dcf4daadc43b208e6cf047cdfa0cf75cf7f0a217

            SHA512

            7fac63b0f84f76fa9cbb6a344e9d0bdcb6ac9608d44c8f4946ab6cc9871742bcd4c582e53d03d65a3ceb4ce5a45c3d1fd7c3dce123212dd61178ac3de54f8de7

          • \Windows\SysWOW64\hfnapi.dll

            Filesize

            106KB

            MD5

            68bac5dc9ce840edf2aa3101cfef104f

            SHA1

            60a549bd121e521f45831bbe9012ed304ffeb4e7

            SHA256

            c17ee2a03668e8a4e027a7e2dcf4daadc43b208e6cf047cdfa0cf75cf7f0a217

            SHA512

            7fac63b0f84f76fa9cbb6a344e9d0bdcb6ac9608d44c8f4946ab6cc9871742bcd4c582e53d03d65a3ceb4ce5a45c3d1fd7c3dce123212dd61178ac3de54f8de7

          • \Windows\SysWOW64\hfnapi.dll

            Filesize

            106KB

            MD5

            68bac5dc9ce840edf2aa3101cfef104f

            SHA1

            60a549bd121e521f45831bbe9012ed304ffeb4e7

            SHA256

            c17ee2a03668e8a4e027a7e2dcf4daadc43b208e6cf047cdfa0cf75cf7f0a217

            SHA512

            7fac63b0f84f76fa9cbb6a344e9d0bdcb6ac9608d44c8f4946ab6cc9871742bcd4c582e53d03d65a3ceb4ce5a45c3d1fd7c3dce123212dd61178ac3de54f8de7

          • \Windows\SysWOW64\hfpapi.dll

            Filesize

            244KB

            MD5

            e4995787936c5723c950eb1ea4415539

            SHA1

            a3aa660b8b6c7a46e2f28ec141d2747bea138db9

            SHA256

            9e1f777894bae9e35d108ffdbab6e3218f5e5aa211178964ea3796a2f4f14118

            SHA512

            b23fa81e9a7146bc219f762b5bf8b1fb7764b5b0a6118ed3f8a97e0cb3ea387ccbf6003708935dcd76044d6a29f9c12f5e2e7501043fbc74301298ccdfab6221

          • \Windows\SysWOW64\hfpapi.dll

            Filesize

            244KB

            MD5

            e4995787936c5723c950eb1ea4415539

            SHA1

            a3aa660b8b6c7a46e2f28ec141d2747bea138db9

            SHA256

            9e1f777894bae9e35d108ffdbab6e3218f5e5aa211178964ea3796a2f4f14118

            SHA512

            b23fa81e9a7146bc219f762b5bf8b1fb7764b5b0a6118ed3f8a97e0cb3ea387ccbf6003708935dcd76044d6a29f9c12f5e2e7501043fbc74301298ccdfab6221

          • \Windows\SysWOW64\installd.exe

            Filesize

            108KB

            MD5

            4114cb48e848dcc8468e2fdf860cf598

            SHA1

            33bfc0704b423d9876da96480bddc105f053a02f

            SHA256

            8494291497eacee157d922bf36731f298ef99fdc25121662fcbcb586f9e5f802

            SHA512

            792a742f8c86b153b7ab7b8b6202c3fb5fb46edd706b7483228275cfb6f3b23824e7263268df19b87a46dce069cb102419e4f5c708159204ca4d058408dde473

          • \Windows\SysWOW64\nethtsrv.exe

            Filesize

            176KB

            MD5

            085fb02a91b4c3965e192a7b23dd6a80

            SHA1

            861f6edcf0af0972a8fccc7453e65ed4a8f820a0

            SHA256

            252abcf92df06124cc9febb475cf9bbc490b303d5c6b437a828f9a1b15e7eb30

            SHA512

            9343f0e5a6328c2d5f2eb71bcc34ae473eb9590eb59394c02adb165be4ad72749cd13c35b2dc77d9d315e291e93e2c83724f592166deb180e847d0124c46446f

          • \Windows\SysWOW64\netupdsrv.exe

            Filesize

            158KB

            MD5

            bd3b99376b266d547162cfc09b5d94fb

            SHA1

            7c6bae9de8919bd055273ff3080c5f172098c7b9

            SHA256

            d950d9dabbd278cfc9ae9eae22c6449fabb0821b48524a2c323b2a5053c9f184

            SHA512

            4f8f814e690148d3ce8f9ccb3b7560ad52e9ab219850f6ab6a125d2a8994b74c1e09d47a929c82d93afdc1ce720aabb207884ad8e457d9ec2f8916ac70f93b33

          • memory/800-62-0x0000000000000000-mapping.dmp

          • memory/948-90-0x0000000000360000-0x00000000007BE000-memory.dmp

            Filesize

            4.4MB

          • memory/948-54-0x0000000076961000-0x0000000076963000-memory.dmp

            Filesize

            8KB

          • memory/948-59-0x0000000000360000-0x00000000007BE000-memory.dmp

            Filesize

            4.4MB

          • memory/1064-76-0x0000000000000000-mapping.dmp

          • memory/1292-58-0x0000000000000000-mapping.dmp

          • memory/1520-64-0x0000000000000000-mapping.dmp

          • memory/1532-81-0x0000000000000000-mapping.dmp

          • memory/1624-61-0x0000000000000000-mapping.dmp

          • memory/1652-86-0x0000000000000000-mapping.dmp

          • memory/1696-70-0x0000000000000000-mapping.dmp

          • memory/1920-87-0x0000000000000000-mapping.dmp

          • memory/2008-80-0x0000000000000000-mapping.dmp

          • memory/2028-57-0x0000000000000000-mapping.dmp