Analysis

  • max time kernel
    148s
  • max time network
    192s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20221111-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20221111-enlocale:en-usos:windows10-2004-x64system
  • submitted
    25-11-2022 15:31

General

  • Target

    03c73b5d8ed69552abd4caafc8d12156ceff39e673e04d931f5a84e6a741d8ad.exe

  • Size

    561KB

  • MD5

    24f44932c5a263b8faa515233edc7bb2

  • SHA1

    afd78f2513070654dda393c4bc9874f723db59d1

  • SHA256

    03c73b5d8ed69552abd4caafc8d12156ceff39e673e04d931f5a84e6a741d8ad

  • SHA512

    6e8bdcc28458731fcafded04b76f96801963630e0ffe5acc560a0feed5184151f75f4e891cf4339f0d90add9a1624607efbc036e0e035bc02e9c8fb672ed9fb9

  • SSDEEP

    12288:CPRYzEbfXrJuhhU7olqkl0ISZBLOMyZS82DjJ/8aZCqYwQnaOvML:vzwf7Yhh+80ISZBL38ydUqFao

Score
8/10

Malware Config

Signatures

  • Drops file in Drivers directory 1 IoCs
  • Executes dropped EXE 5 IoCs
  • Loads dropped DLL 14 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.

  • Modifies data under HKEY_USERS 1 IoCs
  • Runs net.exe
  • Suspicious behavior: LoadsDriver 1 IoCs
  • Suspicious use of AdjustPrivilegeToken 1 IoCs
  • Suspicious use of WriteProcessMemory 33 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\03c73b5d8ed69552abd4caafc8d12156ceff39e673e04d931f5a84e6a741d8ad.exe
    "C:\Users\Admin\AppData\Local\Temp\03c73b5d8ed69552abd4caafc8d12156ceff39e673e04d931f5a84e6a741d8ad.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:4004
    • C:\Windows\SysWOW64\net.exe
      net stop nethttpservice
      2⤵
      • Suspicious use of WriteProcessMemory
      PID:4272
      • C:\Windows\SysWOW64\net1.exe
        C:\Windows\system32\net1 stop nethttpservice
        3⤵
          PID:2556
      • C:\Windows\SysWOW64\net.exe
        net stop serviceupdater
        2⤵
        • Suspicious use of WriteProcessMemory
        PID:1912
        • C:\Windows\SysWOW64\net1.exe
          C:\Windows\system32\net1 stop serviceupdater
          3⤵
            PID:1684
        • C:\Windows\SysWOW64\installd.exe
          "C:\Windows\system32\installd.exe" nethfdrv
          2⤵
          • Executes dropped EXE
          • Loads dropped DLL
          PID:2584
        • C:\Windows\SysWOW64\nethtsrv.exe
          "C:\Windows\system32\nethtsrv.exe" -nfdi
          2⤵
          • Executes dropped EXE
          • Loads dropped DLL
          PID:552
        • C:\Windows\SysWOW64\netupdsrv.exe
          "C:\Windows\system32\netupdsrv.exe" -nfdi
          2⤵
          • Executes dropped EXE
          PID:1756
        • C:\Windows\SysWOW64\net.exe
          net start nethttpservice
          2⤵
          • Suspicious use of WriteProcessMemory
          PID:312
          • C:\Windows\SysWOW64\net1.exe
            C:\Windows\system32\net1 start nethttpservice
            3⤵
              PID:2988
          • C:\Windows\SysWOW64\net.exe
            net start serviceupdater
            2⤵
            • Suspicious use of WriteProcessMemory
            PID:3208
            • C:\Windows\SysWOW64\net1.exe
              C:\Windows\system32\net1 start serviceupdater
              3⤵
                PID:2300
          • C:\Windows\SysWOW64\nethtsrv.exe
            C:\Windows\SysWOW64\nethtsrv.exe
            1⤵
            • Executes dropped EXE
            • Loads dropped DLL
            • Modifies data under HKEY_USERS
            • Suspicious use of AdjustPrivilegeToken
            PID:4356
          • C:\Windows\SysWOW64\netupdsrv.exe
            C:\Windows\SysWOW64\netupdsrv.exe
            1⤵
            • Executes dropped EXE
            PID:4080

          Network

          MITRE ATT&CK Enterprise v6

          Replay Monitor

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          Downloads

          • C:\Users\Admin\AppData\Local\Temp\nsb6FD3.tmp\System.dll

            Filesize

            11KB

            MD5

            c17103ae9072a06da581dec998343fc1

            SHA1

            b72148c6bdfaada8b8c3f950e610ee7cf1da1f8d

            SHA256

            dc58d8ad81cacb0c1ed72e33bff8f23ea40b5252b5bb55d393a0903e6819ae2f

            SHA512

            d32a71aaef18e993f28096d536e41c4d016850721b31171513ce28bbd805a54fd290b7c3e9d935f72e676a1acfb4f0dcc89d95040a0dd29f2b6975855c18986f

          • C:\Users\Admin\AppData\Local\Temp\nsb6FD3.tmp\nsExec.dll

            Filesize

            6KB

            MD5

            acc2b699edfea5bf5aae45aba3a41e96

            SHA1

            d2accf4d494e43ceb2cff69abe4dd17147d29cc2

            SHA256

            168a974eaa3f588d759db3f47c1a9fdc3494ba1fa1a73a84e5e3b2a4d58abd7e

            SHA512

            e29ea10ada98c71a18273b04f44f385b120d4e8473e441ce5748cfa44a23648814f2656f429b85440157988c88de776c6ac008dc38bf09cbb746c230a46c69fe

          • C:\Users\Admin\AppData\Local\Temp\nsb6FD3.tmp\nsExec.dll

            Filesize

            6KB

            MD5

            acc2b699edfea5bf5aae45aba3a41e96

            SHA1

            d2accf4d494e43ceb2cff69abe4dd17147d29cc2

            SHA256

            168a974eaa3f588d759db3f47c1a9fdc3494ba1fa1a73a84e5e3b2a4d58abd7e

            SHA512

            e29ea10ada98c71a18273b04f44f385b120d4e8473e441ce5748cfa44a23648814f2656f429b85440157988c88de776c6ac008dc38bf09cbb746c230a46c69fe

          • C:\Users\Admin\AppData\Local\Temp\nsb6FD3.tmp\nsExec.dll

            Filesize

            6KB

            MD5

            acc2b699edfea5bf5aae45aba3a41e96

            SHA1

            d2accf4d494e43ceb2cff69abe4dd17147d29cc2

            SHA256

            168a974eaa3f588d759db3f47c1a9fdc3494ba1fa1a73a84e5e3b2a4d58abd7e

            SHA512

            e29ea10ada98c71a18273b04f44f385b120d4e8473e441ce5748cfa44a23648814f2656f429b85440157988c88de776c6ac008dc38bf09cbb746c230a46c69fe

          • C:\Users\Admin\AppData\Local\Temp\nsb6FD3.tmp\nsExec.dll

            Filesize

            6KB

            MD5

            acc2b699edfea5bf5aae45aba3a41e96

            SHA1

            d2accf4d494e43ceb2cff69abe4dd17147d29cc2

            SHA256

            168a974eaa3f588d759db3f47c1a9fdc3494ba1fa1a73a84e5e3b2a4d58abd7e

            SHA512

            e29ea10ada98c71a18273b04f44f385b120d4e8473e441ce5748cfa44a23648814f2656f429b85440157988c88de776c6ac008dc38bf09cbb746c230a46c69fe

          • C:\Users\Admin\AppData\Local\Temp\nsb6FD3.tmp\nsExec.dll

            Filesize

            6KB

            MD5

            acc2b699edfea5bf5aae45aba3a41e96

            SHA1

            d2accf4d494e43ceb2cff69abe4dd17147d29cc2

            SHA256

            168a974eaa3f588d759db3f47c1a9fdc3494ba1fa1a73a84e5e3b2a4d58abd7e

            SHA512

            e29ea10ada98c71a18273b04f44f385b120d4e8473e441ce5748cfa44a23648814f2656f429b85440157988c88de776c6ac008dc38bf09cbb746c230a46c69fe

          • C:\Users\Admin\AppData\Local\Temp\nsb6FD3.tmp\nsExec.dll

            Filesize

            6KB

            MD5

            acc2b699edfea5bf5aae45aba3a41e96

            SHA1

            d2accf4d494e43ceb2cff69abe4dd17147d29cc2

            SHA256

            168a974eaa3f588d759db3f47c1a9fdc3494ba1fa1a73a84e5e3b2a4d58abd7e

            SHA512

            e29ea10ada98c71a18273b04f44f385b120d4e8473e441ce5748cfa44a23648814f2656f429b85440157988c88de776c6ac008dc38bf09cbb746c230a46c69fe

          • C:\Users\Admin\AppData\Local\Temp\nsb6FD3.tmp\nsExec.dll

            Filesize

            6KB

            MD5

            acc2b699edfea5bf5aae45aba3a41e96

            SHA1

            d2accf4d494e43ceb2cff69abe4dd17147d29cc2

            SHA256

            168a974eaa3f588d759db3f47c1a9fdc3494ba1fa1a73a84e5e3b2a4d58abd7e

            SHA512

            e29ea10ada98c71a18273b04f44f385b120d4e8473e441ce5748cfa44a23648814f2656f429b85440157988c88de776c6ac008dc38bf09cbb746c230a46c69fe

          • C:\Users\Admin\AppData\Local\Temp\nsb6FD3.tmp\nsExec.dll

            Filesize

            6KB

            MD5

            acc2b699edfea5bf5aae45aba3a41e96

            SHA1

            d2accf4d494e43ceb2cff69abe4dd17147d29cc2

            SHA256

            168a974eaa3f588d759db3f47c1a9fdc3494ba1fa1a73a84e5e3b2a4d58abd7e

            SHA512

            e29ea10ada98c71a18273b04f44f385b120d4e8473e441ce5748cfa44a23648814f2656f429b85440157988c88de776c6ac008dc38bf09cbb746c230a46c69fe

          • C:\Windows\SysWOW64\hfnapi.dll

            Filesize

            106KB

            MD5

            255e962aeaf9a563b9cc5e2c9fe77900

            SHA1

            7e3b96be5183a453ce38afb89c853a99fc772078

            SHA256

            b4eea0bae7c24ce62af76a3aca2e244fa610eaf0d7b10e4fa23a89700f658b99

            SHA512

            d6f82ac5bc50281349262c955a5f863ae8913bf294f468a705ede02880bc2b53e040286febd300e9d0a0ff2a0a585271fb6d80b59fb0e71a2c1af26a6d97e517

          • C:\Windows\SysWOW64\hfnapi.dll

            Filesize

            106KB

            MD5

            255e962aeaf9a563b9cc5e2c9fe77900

            SHA1

            7e3b96be5183a453ce38afb89c853a99fc772078

            SHA256

            b4eea0bae7c24ce62af76a3aca2e244fa610eaf0d7b10e4fa23a89700f658b99

            SHA512

            d6f82ac5bc50281349262c955a5f863ae8913bf294f468a705ede02880bc2b53e040286febd300e9d0a0ff2a0a585271fb6d80b59fb0e71a2c1af26a6d97e517

          • C:\Windows\SysWOW64\hfnapi.dll

            Filesize

            106KB

            MD5

            255e962aeaf9a563b9cc5e2c9fe77900

            SHA1

            7e3b96be5183a453ce38afb89c853a99fc772078

            SHA256

            b4eea0bae7c24ce62af76a3aca2e244fa610eaf0d7b10e4fa23a89700f658b99

            SHA512

            d6f82ac5bc50281349262c955a5f863ae8913bf294f468a705ede02880bc2b53e040286febd300e9d0a0ff2a0a585271fb6d80b59fb0e71a2c1af26a6d97e517

          • C:\Windows\SysWOW64\hfnapi.dll

            Filesize

            106KB

            MD5

            255e962aeaf9a563b9cc5e2c9fe77900

            SHA1

            7e3b96be5183a453ce38afb89c853a99fc772078

            SHA256

            b4eea0bae7c24ce62af76a3aca2e244fa610eaf0d7b10e4fa23a89700f658b99

            SHA512

            d6f82ac5bc50281349262c955a5f863ae8913bf294f468a705ede02880bc2b53e040286febd300e9d0a0ff2a0a585271fb6d80b59fb0e71a2c1af26a6d97e517

          • C:\Windows\SysWOW64\hfpapi.dll

            Filesize

            241KB

            MD5

            918790228b1af7b816504f36f1de2dae

            SHA1

            dce393b62d7dc57d7140e20132245f9cf0d33415

            SHA256

            bd366a2b08ddbcb79a9b5f42de18bd3401fb1b7ac39fa35f737a4aedd022056e

            SHA512

            0747abfc8dc6d852e44aa28eb4af78682bc57b317b1bba3b72a845e6c0ff1d222e30a255620a478c2f1df76557212d7fade1be365c416d400a6161288c4376d4

          • C:\Windows\SysWOW64\hfpapi.dll

            Filesize

            241KB

            MD5

            918790228b1af7b816504f36f1de2dae

            SHA1

            dce393b62d7dc57d7140e20132245f9cf0d33415

            SHA256

            bd366a2b08ddbcb79a9b5f42de18bd3401fb1b7ac39fa35f737a4aedd022056e

            SHA512

            0747abfc8dc6d852e44aa28eb4af78682bc57b317b1bba3b72a845e6c0ff1d222e30a255620a478c2f1df76557212d7fade1be365c416d400a6161288c4376d4

          • C:\Windows\SysWOW64\hfpapi.dll

            Filesize

            241KB

            MD5

            918790228b1af7b816504f36f1de2dae

            SHA1

            dce393b62d7dc57d7140e20132245f9cf0d33415

            SHA256

            bd366a2b08ddbcb79a9b5f42de18bd3401fb1b7ac39fa35f737a4aedd022056e

            SHA512

            0747abfc8dc6d852e44aa28eb4af78682bc57b317b1bba3b72a845e6c0ff1d222e30a255620a478c2f1df76557212d7fade1be365c416d400a6161288c4376d4

          • C:\Windows\SysWOW64\installd.exe

            Filesize

            108KB

            MD5

            3e5a1030c605ae43b49fe5898847f5d6

            SHA1

            fdc6e3a1b51e41e0022a3808dca42887d1a19c3d

            SHA256

            3bf1ecbd97ddb5ac2896b2fa5050235caada58bda6489ac5cb29864a66c5da94

            SHA512

            726e7e02fb5f5fd6ba1d683610fdfbf8e8eda1f9ab5247521f60d325d9ca9c68046655ad6aeda31ecfd46ee12ba90d6ac611cc255c057ed3d87b3306dd7f8273

          • C:\Windows\SysWOW64\installd.exe

            Filesize

            108KB

            MD5

            3e5a1030c605ae43b49fe5898847f5d6

            SHA1

            fdc6e3a1b51e41e0022a3808dca42887d1a19c3d

            SHA256

            3bf1ecbd97ddb5ac2896b2fa5050235caada58bda6489ac5cb29864a66c5da94

            SHA512

            726e7e02fb5f5fd6ba1d683610fdfbf8e8eda1f9ab5247521f60d325d9ca9c68046655ad6aeda31ecfd46ee12ba90d6ac611cc255c057ed3d87b3306dd7f8273

          • C:\Windows\SysWOW64\nethtsrv.exe

            Filesize

            176KB

            MD5

            2d260600ac97e9d31dcef9e465a56a91

            SHA1

            744fcc90327aaaa67d61645ae8a00921b03a012a

            SHA256

            e21ccd34fe59ceed4c7cae92b70982038006edd0b735418366e8ef8c0ceafa8c

            SHA512

            186a9d9a66192c43c39f53f558fa227b6c352c34db1432048b6484f0d61da54d275bcf74630ff63275c19aeba2c9d14504fa2480aeddb98609b9c6ec74c08321

          • C:\Windows\SysWOW64\nethtsrv.exe

            Filesize

            176KB

            MD5

            2d260600ac97e9d31dcef9e465a56a91

            SHA1

            744fcc90327aaaa67d61645ae8a00921b03a012a

            SHA256

            e21ccd34fe59ceed4c7cae92b70982038006edd0b735418366e8ef8c0ceafa8c

            SHA512

            186a9d9a66192c43c39f53f558fa227b6c352c34db1432048b6484f0d61da54d275bcf74630ff63275c19aeba2c9d14504fa2480aeddb98609b9c6ec74c08321

          • C:\Windows\SysWOW64\nethtsrv.exe

            Filesize

            176KB

            MD5

            2d260600ac97e9d31dcef9e465a56a91

            SHA1

            744fcc90327aaaa67d61645ae8a00921b03a012a

            SHA256

            e21ccd34fe59ceed4c7cae92b70982038006edd0b735418366e8ef8c0ceafa8c

            SHA512

            186a9d9a66192c43c39f53f558fa227b6c352c34db1432048b6484f0d61da54d275bcf74630ff63275c19aeba2c9d14504fa2480aeddb98609b9c6ec74c08321

          • C:\Windows\SysWOW64\netupdsrv.exe

            Filesize

            158KB

            MD5

            d6ca5ad40ef49fb278dd994ed2fbf556

            SHA1

            ab460ef82d60420f39dfcd5c9f8d472385e5ef23

            SHA256

            d42b7781f48656c746f8fe00979dce18862d3b5144422aac50b918b180dd85bf

            SHA512

            91ab8c960ebf8cd2eb3d7273b44aa32c8c624c27a3b29060db39abb3ba5865c809b2783bec9d2ff76638d97225a9c7ac12819d3bc526e4d39b772882932d59c5

          • C:\Windows\SysWOW64\netupdsrv.exe

            Filesize

            158KB

            MD5

            d6ca5ad40ef49fb278dd994ed2fbf556

            SHA1

            ab460ef82d60420f39dfcd5c9f8d472385e5ef23

            SHA256

            d42b7781f48656c746f8fe00979dce18862d3b5144422aac50b918b180dd85bf

            SHA512

            91ab8c960ebf8cd2eb3d7273b44aa32c8c624c27a3b29060db39abb3ba5865c809b2783bec9d2ff76638d97225a9c7ac12819d3bc526e4d39b772882932d59c5

          • C:\Windows\SysWOW64\netupdsrv.exe

            Filesize

            158KB

            MD5

            d6ca5ad40ef49fb278dd994ed2fbf556

            SHA1

            ab460ef82d60420f39dfcd5c9f8d472385e5ef23

            SHA256

            d42b7781f48656c746f8fe00979dce18862d3b5144422aac50b918b180dd85bf

            SHA512

            91ab8c960ebf8cd2eb3d7273b44aa32c8c624c27a3b29060db39abb3ba5865c809b2783bec9d2ff76638d97225a9c7ac12819d3bc526e4d39b772882932d59c5

          • memory/4004-132-0x0000000000360000-0x00000000007BE000-memory.dmp

            Filesize

            4.4MB

          • memory/4004-153-0x0000000000360000-0x00000000007BE000-memory.dmp

            Filesize

            4.4MB

          • memory/4004-169-0x0000000000360000-0x00000000007BE000-memory.dmp

            Filesize

            4.4MB