Analysis

  • max time kernel
    164s
  • max time network
    177s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20220812-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20220812-enlocale:en-usos:windows10-2004-x64system
  • submitted
    23-11-2022 10:12

General

  • Target

    c603dfa8b60940f720154342c09420e0b1e746fdb989c40da55ea81971c0c55b.exe

  • Size

    601KB

  • MD5

    452612826d5858b42577e2d5d88baf6a

  • SHA1

    29e75c33799e7a4fbe73cf5d1460ba43cdf13f5a

  • SHA256

    c603dfa8b60940f720154342c09420e0b1e746fdb989c40da55ea81971c0c55b

  • SHA512

    25e31612099a98ae6726cd3ef97f75ec707b899712c36234a8fa73a55ca515e586fc808a22c5e4b8889cbb42a4a448339c7f52e7e765ee012148cfd25a3e575f

  • SSDEEP

    12288:NIny5DYT25W1G7iezFlFBYOUucO4Uo/pfXPcQ/7F:ZUT2wG7iexlFBXY/Z/7F

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\c603dfa8b60940f720154342c09420e0b1e746fdb989c40da55ea81971c0c55b.exe
    "C:\Users\Admin\AppData\Local\Temp\c603dfa8b60940f720154342c09420e0b1e746fdb989c40da55ea81971c0c55b.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:4724
    • C:\Windows\SysWOW64\net.exe
      net stop nethttpservice
      2⤵
      • Suspicious use of WriteProcessMemory
      PID:1372
      • C:\Windows\SysWOW64\net1.exe
        C:\Windows\system32\net1 stop nethttpservice
        3⤵
          PID:688
      • C:\Windows\SysWOW64\net.exe
        net stop serviceupdater
        2⤵
        • Suspicious use of WriteProcessMemory
        PID:2200
        • C:\Windows\SysWOW64\net1.exe
          C:\Windows\system32\net1 stop serviceupdater
          3⤵
            PID:1472
        • C:\Windows\SysWOW64\installd.exe
          "C:\Windows\system32\installd.exe" nethfdrv
          2⤵
          • Executes dropped EXE
          • Loads dropped DLL
          PID:2388
        • C:\Windows\SysWOW64\nethtsrv.exe
          "C:\Windows\system32\nethtsrv.exe" -nfdi
          2⤵
          • Executes dropped EXE
          • Loads dropped DLL
          PID:2804
        • C:\Windows\SysWOW64\netupdsrv.exe
          "C:\Windows\system32\netupdsrv.exe" -nfdi
          2⤵
          • Executes dropped EXE
          PID:1196
        • C:\Windows\SysWOW64\net.exe
          net start nethttpservice
          2⤵
          • Suspicious use of WriteProcessMemory
          PID:1404
          • C:\Windows\SysWOW64\net1.exe
            C:\Windows\system32\net1 start nethttpservice
            3⤵
              PID:4396
          • C:\Windows\SysWOW64\net.exe
            net start serviceupdater
            2⤵
            • Suspicious use of WriteProcessMemory
            PID:4900
            • C:\Windows\SysWOW64\net1.exe
              C:\Windows\system32\net1 start serviceupdater
              3⤵
                PID:2888
          • 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:2192
          • C:\Windows\SysWOW64\netupdsrv.exe
            C:\Windows\SysWOW64\netupdsrv.exe
            1⤵
            • Executes dropped EXE
            PID:1976

          Network

          MITRE ATT&CK Enterprise v6

          Replay Monitor

          Loading Replay Monitor...

          Downloads

          • C:\Users\Admin\AppData\Local\Temp\nseEAE4.tmp\System.dll

            Filesize

            11KB

            MD5

            c17103ae9072a06da581dec998343fc1

            SHA1

            b72148c6bdfaada8b8c3f950e610ee7cf1da1f8d

            SHA256

            dc58d8ad81cacb0c1ed72e33bff8f23ea40b5252b5bb55d393a0903e6819ae2f

            SHA512

            d32a71aaef18e993f28096d536e41c4d016850721b31171513ce28bbd805a54fd290b7c3e9d935f72e676a1acfb4f0dcc89d95040a0dd29f2b6975855c18986f

          • C:\Users\Admin\AppData\Local\Temp\nseEAE4.tmp\nsExec.dll

            Filesize

            6KB

            MD5

            acc2b699edfea5bf5aae45aba3a41e96

            SHA1

            d2accf4d494e43ceb2cff69abe4dd17147d29cc2

            SHA256

            168a974eaa3f588d759db3f47c1a9fdc3494ba1fa1a73a84e5e3b2a4d58abd7e

            SHA512

            e29ea10ada98c71a18273b04f44f385b120d4e8473e441ce5748cfa44a23648814f2656f429b85440157988c88de776c6ac008dc38bf09cbb746c230a46c69fe

          • C:\Users\Admin\AppData\Local\Temp\nseEAE4.tmp\nsExec.dll

            Filesize

            6KB

            MD5

            acc2b699edfea5bf5aae45aba3a41e96

            SHA1

            d2accf4d494e43ceb2cff69abe4dd17147d29cc2

            SHA256

            168a974eaa3f588d759db3f47c1a9fdc3494ba1fa1a73a84e5e3b2a4d58abd7e

            SHA512

            e29ea10ada98c71a18273b04f44f385b120d4e8473e441ce5748cfa44a23648814f2656f429b85440157988c88de776c6ac008dc38bf09cbb746c230a46c69fe

          • C:\Users\Admin\AppData\Local\Temp\nseEAE4.tmp\nsExec.dll

            Filesize

            6KB

            MD5

            acc2b699edfea5bf5aae45aba3a41e96

            SHA1

            d2accf4d494e43ceb2cff69abe4dd17147d29cc2

            SHA256

            168a974eaa3f588d759db3f47c1a9fdc3494ba1fa1a73a84e5e3b2a4d58abd7e

            SHA512

            e29ea10ada98c71a18273b04f44f385b120d4e8473e441ce5748cfa44a23648814f2656f429b85440157988c88de776c6ac008dc38bf09cbb746c230a46c69fe

          • C:\Users\Admin\AppData\Local\Temp\nseEAE4.tmp\nsExec.dll

            Filesize

            6KB

            MD5

            acc2b699edfea5bf5aae45aba3a41e96

            SHA1

            d2accf4d494e43ceb2cff69abe4dd17147d29cc2

            SHA256

            168a974eaa3f588d759db3f47c1a9fdc3494ba1fa1a73a84e5e3b2a4d58abd7e

            SHA512

            e29ea10ada98c71a18273b04f44f385b120d4e8473e441ce5748cfa44a23648814f2656f429b85440157988c88de776c6ac008dc38bf09cbb746c230a46c69fe

          • C:\Users\Admin\AppData\Local\Temp\nseEAE4.tmp\nsExec.dll

            Filesize

            6KB

            MD5

            acc2b699edfea5bf5aae45aba3a41e96

            SHA1

            d2accf4d494e43ceb2cff69abe4dd17147d29cc2

            SHA256

            168a974eaa3f588d759db3f47c1a9fdc3494ba1fa1a73a84e5e3b2a4d58abd7e

            SHA512

            e29ea10ada98c71a18273b04f44f385b120d4e8473e441ce5748cfa44a23648814f2656f429b85440157988c88de776c6ac008dc38bf09cbb746c230a46c69fe

          • C:\Users\Admin\AppData\Local\Temp\nseEAE4.tmp\nsExec.dll

            Filesize

            6KB

            MD5

            acc2b699edfea5bf5aae45aba3a41e96

            SHA1

            d2accf4d494e43ceb2cff69abe4dd17147d29cc2

            SHA256

            168a974eaa3f588d759db3f47c1a9fdc3494ba1fa1a73a84e5e3b2a4d58abd7e

            SHA512

            e29ea10ada98c71a18273b04f44f385b120d4e8473e441ce5748cfa44a23648814f2656f429b85440157988c88de776c6ac008dc38bf09cbb746c230a46c69fe

          • C:\Users\Admin\AppData\Local\Temp\nseEAE4.tmp\nsExec.dll

            Filesize

            6KB

            MD5

            acc2b699edfea5bf5aae45aba3a41e96

            SHA1

            d2accf4d494e43ceb2cff69abe4dd17147d29cc2

            SHA256

            168a974eaa3f588d759db3f47c1a9fdc3494ba1fa1a73a84e5e3b2a4d58abd7e

            SHA512

            e29ea10ada98c71a18273b04f44f385b120d4e8473e441ce5748cfa44a23648814f2656f429b85440157988c88de776c6ac008dc38bf09cbb746c230a46c69fe

          • C:\Users\Admin\AppData\Local\Temp\nseEAE4.tmp\nsExec.dll

            Filesize

            6KB

            MD5

            acc2b699edfea5bf5aae45aba3a41e96

            SHA1

            d2accf4d494e43ceb2cff69abe4dd17147d29cc2

            SHA256

            168a974eaa3f588d759db3f47c1a9fdc3494ba1fa1a73a84e5e3b2a4d58abd7e

            SHA512

            e29ea10ada98c71a18273b04f44f385b120d4e8473e441ce5748cfa44a23648814f2656f429b85440157988c88de776c6ac008dc38bf09cbb746c230a46c69fe

          • C:\Windows\SysWOW64\hfnapi.dll

            Filesize

            106KB

            MD5

            a614ad5a196eea3435d29c759cc47784

            SHA1

            c99c8ad568cbc150947800ce75792294c96bd7b4

            SHA256

            d77d17b8a65e9cf896c05a40369f45a33b7f1c9254dc5054e8b4a400e6b746c2

            SHA512

            22e4f0461da9ad351b556235bee656f3e6c5821d618453f169af578ff5b2bde79651d68123ee31d911d3f7b6982c058cd56d2f990cc748fafcd0948664bb0b92

          • C:\Windows\SysWOW64\hfnapi.dll

            Filesize

            106KB

            MD5

            a614ad5a196eea3435d29c759cc47784

            SHA1

            c99c8ad568cbc150947800ce75792294c96bd7b4

            SHA256

            d77d17b8a65e9cf896c05a40369f45a33b7f1c9254dc5054e8b4a400e6b746c2

            SHA512

            22e4f0461da9ad351b556235bee656f3e6c5821d618453f169af578ff5b2bde79651d68123ee31d911d3f7b6982c058cd56d2f990cc748fafcd0948664bb0b92

          • C:\Windows\SysWOW64\hfnapi.dll

            Filesize

            106KB

            MD5

            a614ad5a196eea3435d29c759cc47784

            SHA1

            c99c8ad568cbc150947800ce75792294c96bd7b4

            SHA256

            d77d17b8a65e9cf896c05a40369f45a33b7f1c9254dc5054e8b4a400e6b746c2

            SHA512

            22e4f0461da9ad351b556235bee656f3e6c5821d618453f169af578ff5b2bde79651d68123ee31d911d3f7b6982c058cd56d2f990cc748fafcd0948664bb0b92

          • C:\Windows\SysWOW64\hfnapi.dll

            Filesize

            106KB

            MD5

            a614ad5a196eea3435d29c759cc47784

            SHA1

            c99c8ad568cbc150947800ce75792294c96bd7b4

            SHA256

            d77d17b8a65e9cf896c05a40369f45a33b7f1c9254dc5054e8b4a400e6b746c2

            SHA512

            22e4f0461da9ad351b556235bee656f3e6c5821d618453f169af578ff5b2bde79651d68123ee31d911d3f7b6982c058cd56d2f990cc748fafcd0948664bb0b92

          • C:\Windows\SysWOW64\hfpapi.dll

            Filesize

            241KB

            MD5

            e477aade7ac114ea96e5636828cab577

            SHA1

            a45a5377fc9486367aeaa7c5ab8f99273ffd457a

            SHA256

            e64265be6c8552725a476d7924ae88d3b38f6ffea02658c7784a4600651dd3b9

            SHA512

            e9aa717f6794b9f3cd37ee6931823a830760abaec15f6a140ddc31fc33a57c17fb9a0d81dd7dd6ab4b331e358c870c9f6e65c22161bf091e2bffa652f461287e

          • C:\Windows\SysWOW64\hfpapi.dll

            Filesize

            241KB

            MD5

            e477aade7ac114ea96e5636828cab577

            SHA1

            a45a5377fc9486367aeaa7c5ab8f99273ffd457a

            SHA256

            e64265be6c8552725a476d7924ae88d3b38f6ffea02658c7784a4600651dd3b9

            SHA512

            e9aa717f6794b9f3cd37ee6931823a830760abaec15f6a140ddc31fc33a57c17fb9a0d81dd7dd6ab4b331e358c870c9f6e65c22161bf091e2bffa652f461287e

          • C:\Windows\SysWOW64\hfpapi.dll

            Filesize

            241KB

            MD5

            e477aade7ac114ea96e5636828cab577

            SHA1

            a45a5377fc9486367aeaa7c5ab8f99273ffd457a

            SHA256

            e64265be6c8552725a476d7924ae88d3b38f6ffea02658c7784a4600651dd3b9

            SHA512

            e9aa717f6794b9f3cd37ee6931823a830760abaec15f6a140ddc31fc33a57c17fb9a0d81dd7dd6ab4b331e358c870c9f6e65c22161bf091e2bffa652f461287e

          • C:\Windows\SysWOW64\installd.exe

            Filesize

            108KB

            MD5

            e0018387deb0382a623a5077177ed90a

            SHA1

            83d2a8e4ac88c9b012bf5a7b324d8ea9aca26b93

            SHA256

            da5091a9bfdf3b572991a3c451345a422a64af51dac5a9bd6ba9486df857d1ba

            SHA512

            266d19a1d0807a45eeb32154f660cf5f1987a93440f453f2f572580bcd680787afe9dcbf443ac53aa24ce39057d5a12f67760e3ef726bb912751f8d216bbfe98

          • C:\Windows\SysWOW64\installd.exe

            Filesize

            108KB

            MD5

            e0018387deb0382a623a5077177ed90a

            SHA1

            83d2a8e4ac88c9b012bf5a7b324d8ea9aca26b93

            SHA256

            da5091a9bfdf3b572991a3c451345a422a64af51dac5a9bd6ba9486df857d1ba

            SHA512

            266d19a1d0807a45eeb32154f660cf5f1987a93440f453f2f572580bcd680787afe9dcbf443ac53aa24ce39057d5a12f67760e3ef726bb912751f8d216bbfe98

          • C:\Windows\SysWOW64\nethtsrv.exe

            Filesize

            176KB

            MD5

            74edc4fb411d95b99321362e589f78f4

            SHA1

            ab84f7dcab39c8e60da9ae31822d732ca26d7ccb

            SHA256

            668e6df1beb937b6bbb8f566a9fd5ab64a5b7638d1e2779ece060cef75bcd73e

            SHA512

            9814f7bb5473ddb791b924c87ab4796a2b587dd624c780fbef5175458fa1d104d273adf1828c7f61c06bac67250d0d46a8236a1b3b6097f2629dc13db7036f72

          • C:\Windows\SysWOW64\nethtsrv.exe

            Filesize

            176KB

            MD5

            74edc4fb411d95b99321362e589f78f4

            SHA1

            ab84f7dcab39c8e60da9ae31822d732ca26d7ccb

            SHA256

            668e6df1beb937b6bbb8f566a9fd5ab64a5b7638d1e2779ece060cef75bcd73e

            SHA512

            9814f7bb5473ddb791b924c87ab4796a2b587dd624c780fbef5175458fa1d104d273adf1828c7f61c06bac67250d0d46a8236a1b3b6097f2629dc13db7036f72

          • C:\Windows\SysWOW64\nethtsrv.exe

            Filesize

            176KB

            MD5

            74edc4fb411d95b99321362e589f78f4

            SHA1

            ab84f7dcab39c8e60da9ae31822d732ca26d7ccb

            SHA256

            668e6df1beb937b6bbb8f566a9fd5ab64a5b7638d1e2779ece060cef75bcd73e

            SHA512

            9814f7bb5473ddb791b924c87ab4796a2b587dd624c780fbef5175458fa1d104d273adf1828c7f61c06bac67250d0d46a8236a1b3b6097f2629dc13db7036f72

          • C:\Windows\SysWOW64\netupdsrv.exe

            Filesize

            158KB

            MD5

            e33435216dfadda02ee4b6ef90ec5bd8

            SHA1

            8d4d8e1723493cd0232cf50587100f76b63e13be

            SHA256

            b1401383a734b514ece4cf76b41d5e81ebaae3612570b197b0d1f0622f509e7b

            SHA512

            dd7df2b3b289322808bf701ed4e96487622204067fa992f61ddae610fa088f768ca0242d6e15ab357fa28e9979cd513da607b144dc9fd72cf717bd757488593b

          • C:\Windows\SysWOW64\netupdsrv.exe

            Filesize

            158KB

            MD5

            e33435216dfadda02ee4b6ef90ec5bd8

            SHA1

            8d4d8e1723493cd0232cf50587100f76b63e13be

            SHA256

            b1401383a734b514ece4cf76b41d5e81ebaae3612570b197b0d1f0622f509e7b

            SHA512

            dd7df2b3b289322808bf701ed4e96487622204067fa992f61ddae610fa088f768ca0242d6e15ab357fa28e9979cd513da607b144dc9fd72cf717bd757488593b

          • C:\Windows\SysWOW64\netupdsrv.exe

            Filesize

            158KB

            MD5

            e33435216dfadda02ee4b6ef90ec5bd8

            SHA1

            8d4d8e1723493cd0232cf50587100f76b63e13be

            SHA256

            b1401383a734b514ece4cf76b41d5e81ebaae3612570b197b0d1f0622f509e7b

            SHA512

            dd7df2b3b289322808bf701ed4e96487622204067fa992f61ddae610fa088f768ca0242d6e15ab357fa28e9979cd513da607b144dc9fd72cf717bd757488593b

          • memory/688-137-0x0000000000000000-mapping.dmp

          • memory/1196-154-0x0000000000000000-mapping.dmp

          • memory/1372-136-0x0000000000000000-mapping.dmp

          • memory/1404-159-0x0000000000000000-mapping.dmp

          • memory/1472-142-0x0000000000000000-mapping.dmp

          • memory/2200-141-0x0000000000000000-mapping.dmp

          • memory/2388-143-0x0000000000000000-mapping.dmp

          • memory/2804-148-0x0000000000000000-mapping.dmp

          • memory/2888-167-0x0000000000000000-mapping.dmp

          • memory/4396-160-0x0000000000000000-mapping.dmp

          • memory/4724-132-0x0000000000360000-0x00000000007BE000-memory.dmp

            Filesize

            4.4MB

          • memory/4724-138-0x0000000000360000-0x00000000007BE000-memory.dmp

            Filesize

            4.4MB

          • memory/4724-169-0x0000000000360000-0x00000000007BE000-memory.dmp

            Filesize

            4.4MB

          • memory/4900-166-0x0000000000000000-mapping.dmp