Analysis

  • max time kernel
    90s
  • max time network
    154s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20220901-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20220901-enlocale:en-usos:windows10-2004-x64system
  • submitted
    24-11-2022 05:34

General

  • Target

    d7c971761308310726162dfa7f96fa874bb828fc093cb10f2533e2658101ce6d.exe

  • Size

    601KB

  • MD5

    0933d82da29a3d58170304b8fff42faa

  • SHA1

    23aa2e013af58c56f399b7e527c77f90e2ccec39

  • SHA256

    d7c971761308310726162dfa7f96fa874bb828fc093cb10f2533e2658101ce6d

  • SHA512

    da5808fe10c6be9ad92d6eb5dffe1a98afc4efe2deee6ec4104c59a6dc6b0739999a44f69f0c5af89d47675160ee7ccaa183a2fe9ce2215a0b44dc53c0d3ae70

  • SSDEEP

    12288:jIny5DYTtD0d+nPRg4s+0UFudMs+gVHIZ74YBi9wW5xTz4nNZp0uz:rUTtwdWg4s+bU4gVHiE8i9bTa/z

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\d7c971761308310726162dfa7f96fa874bb828fc093cb10f2533e2658101ce6d.exe
    "C:\Users\Admin\AppData\Local\Temp\d7c971761308310726162dfa7f96fa874bb828fc093cb10f2533e2658101ce6d.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:3360
    • C:\Windows\SysWOW64\net.exe
      net stop nethttpservice
      2⤵
      • Suspicious use of WriteProcessMemory
      PID:3604
      • 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:5048
        • C:\Windows\SysWOW64\net1.exe
          C:\Windows\system32\net1 stop serviceupdater
          3⤵
            PID:2184
        • C:\Windows\SysWOW64\installd.exe
          "C:\Windows\system32\installd.exe" nethfdrv
          2⤵
          • Executes dropped EXE
          • Loads dropped DLL
          PID:2240
        • C:\Windows\SysWOW64\nethtsrv.exe
          "C:\Windows\system32\nethtsrv.exe" -nfdi
          2⤵
          • Executes dropped EXE
          • Loads dropped DLL
          PID:1840
        • C:\Windows\SysWOW64\netupdsrv.exe
          "C:\Windows\system32\netupdsrv.exe" -nfdi
          2⤵
          • Executes dropped EXE
          PID:332
        • C:\Windows\SysWOW64\net.exe
          net start nethttpservice
          2⤵
          • Suspicious use of WriteProcessMemory
          PID:3756
          • C:\Windows\SysWOW64\net1.exe
            C:\Windows\system32\net1 start nethttpservice
            3⤵
              PID:2360
          • C:\Windows\SysWOW64\net.exe
            net start serviceupdater
            2⤵
            • Suspicious use of WriteProcessMemory
            PID:2312
            • C:\Windows\SysWOW64\net1.exe
              C:\Windows\system32\net1 start serviceupdater
              3⤵
                PID:1200
          • 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:208
          • C:\Windows\SysWOW64\netupdsrv.exe
            C:\Windows\SysWOW64\netupdsrv.exe
            1⤵
            • Executes dropped EXE
            PID:4884

          Network

          MITRE ATT&CK Enterprise v6

          Replay Monitor

          Loading Replay Monitor...

          Downloads

          • C:\Users\Admin\AppData\Local\Temp\nstD0A5.tmp\System.dll

            Filesize

            11KB

            MD5

            c17103ae9072a06da581dec998343fc1

            SHA1

            b72148c6bdfaada8b8c3f950e610ee7cf1da1f8d

            SHA256

            dc58d8ad81cacb0c1ed72e33bff8f23ea40b5252b5bb55d393a0903e6819ae2f

            SHA512

            d32a71aaef18e993f28096d536e41c4d016850721b31171513ce28bbd805a54fd290b7c3e9d935f72e676a1acfb4f0dcc89d95040a0dd29f2b6975855c18986f

          • C:\Users\Admin\AppData\Local\Temp\nstD0A5.tmp\nsExec.dll

            Filesize

            6KB

            MD5

            acc2b699edfea5bf5aae45aba3a41e96

            SHA1

            d2accf4d494e43ceb2cff69abe4dd17147d29cc2

            SHA256

            168a974eaa3f588d759db3f47c1a9fdc3494ba1fa1a73a84e5e3b2a4d58abd7e

            SHA512

            e29ea10ada98c71a18273b04f44f385b120d4e8473e441ce5748cfa44a23648814f2656f429b85440157988c88de776c6ac008dc38bf09cbb746c230a46c69fe

          • C:\Users\Admin\AppData\Local\Temp\nstD0A5.tmp\nsExec.dll

            Filesize

            6KB

            MD5

            acc2b699edfea5bf5aae45aba3a41e96

            SHA1

            d2accf4d494e43ceb2cff69abe4dd17147d29cc2

            SHA256

            168a974eaa3f588d759db3f47c1a9fdc3494ba1fa1a73a84e5e3b2a4d58abd7e

            SHA512

            e29ea10ada98c71a18273b04f44f385b120d4e8473e441ce5748cfa44a23648814f2656f429b85440157988c88de776c6ac008dc38bf09cbb746c230a46c69fe

          • C:\Users\Admin\AppData\Local\Temp\nstD0A5.tmp\nsExec.dll

            Filesize

            6KB

            MD5

            acc2b699edfea5bf5aae45aba3a41e96

            SHA1

            d2accf4d494e43ceb2cff69abe4dd17147d29cc2

            SHA256

            168a974eaa3f588d759db3f47c1a9fdc3494ba1fa1a73a84e5e3b2a4d58abd7e

            SHA512

            e29ea10ada98c71a18273b04f44f385b120d4e8473e441ce5748cfa44a23648814f2656f429b85440157988c88de776c6ac008dc38bf09cbb746c230a46c69fe

          • C:\Users\Admin\AppData\Local\Temp\nstD0A5.tmp\nsExec.dll

            Filesize

            6KB

            MD5

            acc2b699edfea5bf5aae45aba3a41e96

            SHA1

            d2accf4d494e43ceb2cff69abe4dd17147d29cc2

            SHA256

            168a974eaa3f588d759db3f47c1a9fdc3494ba1fa1a73a84e5e3b2a4d58abd7e

            SHA512

            e29ea10ada98c71a18273b04f44f385b120d4e8473e441ce5748cfa44a23648814f2656f429b85440157988c88de776c6ac008dc38bf09cbb746c230a46c69fe

          • C:\Users\Admin\AppData\Local\Temp\nstD0A5.tmp\nsExec.dll

            Filesize

            6KB

            MD5

            acc2b699edfea5bf5aae45aba3a41e96

            SHA1

            d2accf4d494e43ceb2cff69abe4dd17147d29cc2

            SHA256

            168a974eaa3f588d759db3f47c1a9fdc3494ba1fa1a73a84e5e3b2a4d58abd7e

            SHA512

            e29ea10ada98c71a18273b04f44f385b120d4e8473e441ce5748cfa44a23648814f2656f429b85440157988c88de776c6ac008dc38bf09cbb746c230a46c69fe

          • C:\Users\Admin\AppData\Local\Temp\nstD0A5.tmp\nsExec.dll

            Filesize

            6KB

            MD5

            acc2b699edfea5bf5aae45aba3a41e96

            SHA1

            d2accf4d494e43ceb2cff69abe4dd17147d29cc2

            SHA256

            168a974eaa3f588d759db3f47c1a9fdc3494ba1fa1a73a84e5e3b2a4d58abd7e

            SHA512

            e29ea10ada98c71a18273b04f44f385b120d4e8473e441ce5748cfa44a23648814f2656f429b85440157988c88de776c6ac008dc38bf09cbb746c230a46c69fe

          • C:\Users\Admin\AppData\Local\Temp\nstD0A5.tmp\nsExec.dll

            Filesize

            6KB

            MD5

            acc2b699edfea5bf5aae45aba3a41e96

            SHA1

            d2accf4d494e43ceb2cff69abe4dd17147d29cc2

            SHA256

            168a974eaa3f588d759db3f47c1a9fdc3494ba1fa1a73a84e5e3b2a4d58abd7e

            SHA512

            e29ea10ada98c71a18273b04f44f385b120d4e8473e441ce5748cfa44a23648814f2656f429b85440157988c88de776c6ac008dc38bf09cbb746c230a46c69fe

          • C:\Users\Admin\AppData\Local\Temp\nstD0A5.tmp\nsExec.dll

            Filesize

            6KB

            MD5

            acc2b699edfea5bf5aae45aba3a41e96

            SHA1

            d2accf4d494e43ceb2cff69abe4dd17147d29cc2

            SHA256

            168a974eaa3f588d759db3f47c1a9fdc3494ba1fa1a73a84e5e3b2a4d58abd7e

            SHA512

            e29ea10ada98c71a18273b04f44f385b120d4e8473e441ce5748cfa44a23648814f2656f429b85440157988c88de776c6ac008dc38bf09cbb746c230a46c69fe

          • C:\Windows\SysWOW64\hfnapi.dll

            Filesize

            106KB

            MD5

            b270ca8f16c38e43e862bd47459f08f5

            SHA1

            24d09b853daa6c5063fa3d0e3f27db005dae9266

            SHA256

            c3f984d23b7afa0cf1a2e887d4598065785b9d19c97267c61368a61a7a74a09c

            SHA512

            b0c8af9fa8febb97341c21b142e841d1057e47b6f00a454e711f6a4de5792938e5129fe5e1d94a1fb07d1169b1c1a0c21edf7f2963cad2e88432dae3be848693

          • C:\Windows\SysWOW64\hfnapi.dll

            Filesize

            106KB

            MD5

            b270ca8f16c38e43e862bd47459f08f5

            SHA1

            24d09b853daa6c5063fa3d0e3f27db005dae9266

            SHA256

            c3f984d23b7afa0cf1a2e887d4598065785b9d19c97267c61368a61a7a74a09c

            SHA512

            b0c8af9fa8febb97341c21b142e841d1057e47b6f00a454e711f6a4de5792938e5129fe5e1d94a1fb07d1169b1c1a0c21edf7f2963cad2e88432dae3be848693

          • C:\Windows\SysWOW64\hfnapi.dll

            Filesize

            106KB

            MD5

            b270ca8f16c38e43e862bd47459f08f5

            SHA1

            24d09b853daa6c5063fa3d0e3f27db005dae9266

            SHA256

            c3f984d23b7afa0cf1a2e887d4598065785b9d19c97267c61368a61a7a74a09c

            SHA512

            b0c8af9fa8febb97341c21b142e841d1057e47b6f00a454e711f6a4de5792938e5129fe5e1d94a1fb07d1169b1c1a0c21edf7f2963cad2e88432dae3be848693

          • C:\Windows\SysWOW64\hfnapi.dll

            Filesize

            106KB

            MD5

            b270ca8f16c38e43e862bd47459f08f5

            SHA1

            24d09b853daa6c5063fa3d0e3f27db005dae9266

            SHA256

            c3f984d23b7afa0cf1a2e887d4598065785b9d19c97267c61368a61a7a74a09c

            SHA512

            b0c8af9fa8febb97341c21b142e841d1057e47b6f00a454e711f6a4de5792938e5129fe5e1d94a1fb07d1169b1c1a0c21edf7f2963cad2e88432dae3be848693

          • C:\Windows\SysWOW64\hfpapi.dll

            Filesize

            241KB

            MD5

            3f2611cdeedb8e3b33d46e6418680d25

            SHA1

            8a873218a4a8457c7dad95533fd92e333abbc4e2

            SHA256

            f821770baec8f5bae6b5adfc4563cd3b486eea755950d56c4ce5a3411a81837c

            SHA512

            7bcaf980d57f8bccb5a15d1e9c6f6891a323bccb8113c5f2caec8d4bf18e379012481edd1ae18bf14dca1e8a58fd33fd1a53a03168a721c8e6d4affc0bc3698d

          • C:\Windows\SysWOW64\hfpapi.dll

            Filesize

            241KB

            MD5

            3f2611cdeedb8e3b33d46e6418680d25

            SHA1

            8a873218a4a8457c7dad95533fd92e333abbc4e2

            SHA256

            f821770baec8f5bae6b5adfc4563cd3b486eea755950d56c4ce5a3411a81837c

            SHA512

            7bcaf980d57f8bccb5a15d1e9c6f6891a323bccb8113c5f2caec8d4bf18e379012481edd1ae18bf14dca1e8a58fd33fd1a53a03168a721c8e6d4affc0bc3698d

          • C:\Windows\SysWOW64\hfpapi.dll

            Filesize

            241KB

            MD5

            3f2611cdeedb8e3b33d46e6418680d25

            SHA1

            8a873218a4a8457c7dad95533fd92e333abbc4e2

            SHA256

            f821770baec8f5bae6b5adfc4563cd3b486eea755950d56c4ce5a3411a81837c

            SHA512

            7bcaf980d57f8bccb5a15d1e9c6f6891a323bccb8113c5f2caec8d4bf18e379012481edd1ae18bf14dca1e8a58fd33fd1a53a03168a721c8e6d4affc0bc3698d

          • C:\Windows\SysWOW64\installd.exe

            Filesize

            108KB

            MD5

            0f2014cacf351f5c813336b625216085

            SHA1

            e369b91e140bacc3b9d5a5ad4f53f41e7def8a6d

            SHA256

            0f55a8d051e91e60f1bf43b154e20577010b2c488c5cb3124198624b2d92b8c9

            SHA512

            092ab78436ce79ce04e8c8b1da7cc2cb7349ac8618fe319cabe9a61358138d7fa9250d45c70a9a41f9d44122948f8c9d833b2d8d745a245815850c5209729508

          • C:\Windows\SysWOW64\installd.exe

            Filesize

            108KB

            MD5

            0f2014cacf351f5c813336b625216085

            SHA1

            e369b91e140bacc3b9d5a5ad4f53f41e7def8a6d

            SHA256

            0f55a8d051e91e60f1bf43b154e20577010b2c488c5cb3124198624b2d92b8c9

            SHA512

            092ab78436ce79ce04e8c8b1da7cc2cb7349ac8618fe319cabe9a61358138d7fa9250d45c70a9a41f9d44122948f8c9d833b2d8d745a245815850c5209729508

          • C:\Windows\SysWOW64\nethtsrv.exe

            Filesize

            176KB

            MD5

            871ba8dcbb17fda05b94b351f1707c6d

            SHA1

            c5fd0451353b8acc1dbb2206ee178ee08c253262

            SHA256

            bd691dbaea0498415009e166c5faca629098bb7c4c328ea847178ec44562c203

            SHA512

            275f69f3cdb644cc0fb6f6656f64358274fb73d0845ce9dbb0054593331693f3b4d117694360c19c011ffcff8f691403e45b5e6e5fc1be50f6ad93f0694e4f9f

          • C:\Windows\SysWOW64\nethtsrv.exe

            Filesize

            176KB

            MD5

            871ba8dcbb17fda05b94b351f1707c6d

            SHA1

            c5fd0451353b8acc1dbb2206ee178ee08c253262

            SHA256

            bd691dbaea0498415009e166c5faca629098bb7c4c328ea847178ec44562c203

            SHA512

            275f69f3cdb644cc0fb6f6656f64358274fb73d0845ce9dbb0054593331693f3b4d117694360c19c011ffcff8f691403e45b5e6e5fc1be50f6ad93f0694e4f9f

          • C:\Windows\SysWOW64\nethtsrv.exe

            Filesize

            176KB

            MD5

            871ba8dcbb17fda05b94b351f1707c6d

            SHA1

            c5fd0451353b8acc1dbb2206ee178ee08c253262

            SHA256

            bd691dbaea0498415009e166c5faca629098bb7c4c328ea847178ec44562c203

            SHA512

            275f69f3cdb644cc0fb6f6656f64358274fb73d0845ce9dbb0054593331693f3b4d117694360c19c011ffcff8f691403e45b5e6e5fc1be50f6ad93f0694e4f9f

          • C:\Windows\SysWOW64\netupdsrv.exe

            Filesize

            158KB

            MD5

            13bfc22de09dfbbcea6a92ec7497e08f

            SHA1

            ec869f13f3bf7c491bff73d1221c73a0e8b6ef3b

            SHA256

            6bb05b6b45dd2c91891505584f21f36716f11fb64072b7dc54684ec3bbc9dc39

            SHA512

            c498df98a5f1e1fc9c5057fe9cf63213f7f742b105067925267a27980271c7df3f1b709f0b870afcd6f43070ad05e99ef36ec1d7fc1265d0de98fc7571b0e88b

          • C:\Windows\SysWOW64\netupdsrv.exe

            Filesize

            158KB

            MD5

            13bfc22de09dfbbcea6a92ec7497e08f

            SHA1

            ec869f13f3bf7c491bff73d1221c73a0e8b6ef3b

            SHA256

            6bb05b6b45dd2c91891505584f21f36716f11fb64072b7dc54684ec3bbc9dc39

            SHA512

            c498df98a5f1e1fc9c5057fe9cf63213f7f742b105067925267a27980271c7df3f1b709f0b870afcd6f43070ad05e99ef36ec1d7fc1265d0de98fc7571b0e88b

          • C:\Windows\SysWOW64\netupdsrv.exe

            Filesize

            158KB

            MD5

            13bfc22de09dfbbcea6a92ec7497e08f

            SHA1

            ec869f13f3bf7c491bff73d1221c73a0e8b6ef3b

            SHA256

            6bb05b6b45dd2c91891505584f21f36716f11fb64072b7dc54684ec3bbc9dc39

            SHA512

            c498df98a5f1e1fc9c5057fe9cf63213f7f742b105067925267a27980271c7df3f1b709f0b870afcd6f43070ad05e99ef36ec1d7fc1265d0de98fc7571b0e88b

          • memory/332-153-0x0000000000000000-mapping.dmp

          • memory/1200-166-0x0000000000000000-mapping.dmp

          • memory/1292-137-0x0000000000000000-mapping.dmp

          • memory/1840-147-0x0000000000000000-mapping.dmp

          • memory/2184-141-0x0000000000000000-mapping.dmp

          • memory/2240-142-0x0000000000000000-mapping.dmp

          • memory/2312-165-0x0000000000000000-mapping.dmp

          • memory/2360-159-0x0000000000000000-mapping.dmp

          • memory/3360-132-0x0000000000360000-0x00000000007BE000-memory.dmp

            Filesize

            4.4MB

          • memory/3360-168-0x0000000000360000-0x00000000007BE000-memory.dmp

            Filesize

            4.4MB

          • memory/3604-136-0x0000000000000000-mapping.dmp

          • memory/3756-158-0x0000000000000000-mapping.dmp

          • memory/5048-140-0x0000000000000000-mapping.dmp