Analysis

  • max time kernel
    43s
  • max time network
    45s
  • platform
    windows7_x64
  • resource
    win7-20220812-en
  • resource tags

    arch:x64arch:x86image:win7-20220812-enlocale:en-usos:windows7-x64system
  • submitted
    23-11-2022 10:30

General

  • Target

    2be07df02e7f46c30515e166d7e87edad27460ac8ffdc5e3f28af60ab0ccf05d.exe

  • Size

    601KB

  • MD5

    6a299532ffee954f2babe8dd2e81d5c2

  • SHA1

    a4d29cb6a2e09a709f45076ee24e64b33eda4526

  • SHA256

    2be07df02e7f46c30515e166d7e87edad27460ac8ffdc5e3f28af60ab0ccf05d

  • SHA512

    d86caa1f539f22b69b5d65a2b78c3e34f15abf518a950e26a851e8b5352cd80d5fc8b3d247d1dfdb8dadd7316d8624a8d568ab1866ed8807416ca55fc65af9be

  • SSDEEP

    12288:8Iny5DYTt1wxnLa7QgmzDNBn1y7JK9yu2VhlzuWdF:aUTtOlaUgm1B1UK9yPjTL

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\2be07df02e7f46c30515e166d7e87edad27460ac8ffdc5e3f28af60ab0ccf05d.exe
    "C:\Users\Admin\AppData\Local\Temp\2be07df02e7f46c30515e166d7e87edad27460ac8ffdc5e3f28af60ab0ccf05d.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:1676
    • C:\Windows\SysWOW64\net.exe
      net stop nethttpservice
      2⤵
      • Suspicious use of WriteProcessMemory
      PID:1756
      • C:\Windows\SysWOW64\net1.exe
        C:\Windows\system32\net1 stop nethttpservice
        3⤵
          PID:1988
      • C:\Windows\SysWOW64\net.exe
        net stop serviceupdater
        2⤵
        • Suspicious use of WriteProcessMemory
        PID:2024
        • C:\Windows\SysWOW64\net1.exe
          C:\Windows\system32\net1 stop serviceupdater
          3⤵
            PID:1744
        • C:\Windows\SysWOW64\installd.exe
          "C:\Windows\system32\installd.exe" nethfdrv
          2⤵
          • Executes dropped EXE
          • Loads dropped DLL
          PID:956
        • C:\Windows\SysWOW64\nethtsrv.exe
          "C:\Windows\system32\nethtsrv.exe" -nfdi
          2⤵
          • Executes dropped EXE
          • Loads dropped DLL
          PID:632
        • C:\Windows\SysWOW64\netupdsrv.exe
          "C:\Windows\system32\netupdsrv.exe" -nfdi
          2⤵
          • Executes dropped EXE
          PID:1764
        • C:\Windows\SysWOW64\net.exe
          net start nethttpservice
          2⤵
          • Suspicious use of WriteProcessMemory
          PID:1828
          • C:\Windows\SysWOW64\net1.exe
            C:\Windows\system32\net1 start nethttpservice
            3⤵
              PID:300
          • C:\Windows\SysWOW64\net.exe
            net start serviceupdater
            2⤵
            • Suspicious use of WriteProcessMemory
            PID:1728
            • C:\Windows\SysWOW64\net1.exe
              C:\Windows\system32\net1 start serviceupdater
              3⤵
                PID:1948
          • C:\Windows\SysWOW64\nethtsrv.exe
            C:\Windows\SysWOW64\nethtsrv.exe
            1⤵
            • Executes dropped EXE
            • Loads dropped DLL
            • Suspicious use of AdjustPrivilegeToken
            PID:1268
          • C:\Windows\SysWOW64\netupdsrv.exe
            C:\Windows\SysWOW64\netupdsrv.exe
            1⤵
            • Executes dropped EXE
            PID:1816

          Network

          MITRE ATT&CK Matrix ATT&CK v6

          Discovery

          Query Registry

          1
          T1012

          System Information Discovery

          1
          T1082

          Replay Monitor

          Loading Replay Monitor...

          Downloads

          • C:\Windows\SysWOW64\hfnapi.dll
            Filesize

            106KB

            MD5

            4fe4a9332ec6c4270eb7648360715bd9

            SHA1

            ccfa1583a2c7487a1f9ba37ebf98465f73b0dc41

            SHA256

            54ad2a466691b613d60ca56381d8cf8cdadcfdb8f7ca20c927502234b8a6d57c

            SHA512

            c955058c242b875e0b741cb2c2c3c8e7bd8dd8fdb00c36f8bb2058ea97f5a63f39357ceeb89d8b70e5615570a4cd3e8e5e4617e1e7d7e2da6c77b62bf403041f

          • C:\Windows\SysWOW64\hfpapi.dll
            Filesize

            241KB

            MD5

            f99122ad4f21d36b2095ec5c2cf78faf

            SHA1

            23d5706a7000c728138b151a5f7d0b7769c3205f

            SHA256

            d124db87fbb7a209cfd342584c06c2f0f170b23b78699d7ff20f527029e3f6cb

            SHA512

            f099dad11d1b178c67eebf9e344921a9201dcef8b83ee5bd15340adc4b671d7f3a170483d856ddadaf4504e6ef005fbec9fca8ea0ad7f6eb9f8252456efebaae

          • C:\Windows\SysWOW64\installd.exe
            Filesize

            108KB

            MD5

            5c82bf0016a6d6ea73a74ee9f01612ad

            SHA1

            6c90c01859da00388b1c2b169873ee5b4ad8962b

            SHA256

            5e06bf14352a4741f378d22a95706a0e1b8ca43d72dd025ac14eefe6556628da

            SHA512

            f6b2d45148bbaaf7b40c1b751ee73c7ce090cfba2414b1e9266768d72bcd68cfa008887a93f54ea8708ec7297d4bb3779d15a38caffb3b6c2144ea7cef16bdf2

          • C:\Windows\SysWOW64\nethtsrv.exe
            Filesize

            176KB

            MD5

            53c0719aff3908e8a7ca568d53244e1d

            SHA1

            7d365f4f5f706022abd891d38bc27be0895e7bc7

            SHA256

            7bf1af3b603e5d71b14ef5ed45b3170ede8908f05b6576f3d5013379506162d3

            SHA512

            1f94f488d052a5d47d44a6d1f56dd8afd61ba875db0d40a4c0086ffebce62d8dbb204fdfdf092a155d292bdac3b873d365abe10b78c99718a75f579b9b6eb08b

          • C:\Windows\SysWOW64\nethtsrv.exe
            Filesize

            176KB

            MD5

            53c0719aff3908e8a7ca568d53244e1d

            SHA1

            7d365f4f5f706022abd891d38bc27be0895e7bc7

            SHA256

            7bf1af3b603e5d71b14ef5ed45b3170ede8908f05b6576f3d5013379506162d3

            SHA512

            1f94f488d052a5d47d44a6d1f56dd8afd61ba875db0d40a4c0086ffebce62d8dbb204fdfdf092a155d292bdac3b873d365abe10b78c99718a75f579b9b6eb08b

          • C:\Windows\SysWOW64\netupdsrv.exe
            Filesize

            158KB

            MD5

            07a43604e835575b2928470ffe9f9294

            SHA1

            cef5fe47e0753edc5a94c9704387997ba38207b8

            SHA256

            824e992207947c16a9bd706dca7b8eedebc2af9f97db4edbf0b97a7376832305

            SHA512

            b35a30ff06a107e72f2b89679900c29c990ffe561d341d55fe93f9c9cbe8d6f3faabd5c756bcdc8545e8243cb7ec0e6850a5f4893281844304c1ed18cff1b4eb

          • C:\Windows\SysWOW64\netupdsrv.exe
            Filesize

            158KB

            MD5

            07a43604e835575b2928470ffe9f9294

            SHA1

            cef5fe47e0753edc5a94c9704387997ba38207b8

            SHA256

            824e992207947c16a9bd706dca7b8eedebc2af9f97db4edbf0b97a7376832305

            SHA512

            b35a30ff06a107e72f2b89679900c29c990ffe561d341d55fe93f9c9cbe8d6f3faabd5c756bcdc8545e8243cb7ec0e6850a5f4893281844304c1ed18cff1b4eb

          • \Users\Admin\AppData\Local\Temp\nsj8C0D.tmp\System.dll
            Filesize

            11KB

            MD5

            c17103ae9072a06da581dec998343fc1

            SHA1

            b72148c6bdfaada8b8c3f950e610ee7cf1da1f8d

            SHA256

            dc58d8ad81cacb0c1ed72e33bff8f23ea40b5252b5bb55d393a0903e6819ae2f

            SHA512

            d32a71aaef18e993f28096d536e41c4d016850721b31171513ce28bbd805a54fd290b7c3e9d935f72e676a1acfb4f0dcc89d95040a0dd29f2b6975855c18986f

          • \Users\Admin\AppData\Local\Temp\nsj8C0D.tmp\nsExec.dll
            Filesize

            6KB

            MD5

            acc2b699edfea5bf5aae45aba3a41e96

            SHA1

            d2accf4d494e43ceb2cff69abe4dd17147d29cc2

            SHA256

            168a974eaa3f588d759db3f47c1a9fdc3494ba1fa1a73a84e5e3b2a4d58abd7e

            SHA512

            e29ea10ada98c71a18273b04f44f385b120d4e8473e441ce5748cfa44a23648814f2656f429b85440157988c88de776c6ac008dc38bf09cbb746c230a46c69fe

          • \Users\Admin\AppData\Local\Temp\nsj8C0D.tmp\nsExec.dll
            Filesize

            6KB

            MD5

            acc2b699edfea5bf5aae45aba3a41e96

            SHA1

            d2accf4d494e43ceb2cff69abe4dd17147d29cc2

            SHA256

            168a974eaa3f588d759db3f47c1a9fdc3494ba1fa1a73a84e5e3b2a4d58abd7e

            SHA512

            e29ea10ada98c71a18273b04f44f385b120d4e8473e441ce5748cfa44a23648814f2656f429b85440157988c88de776c6ac008dc38bf09cbb746c230a46c69fe

          • \Users\Admin\AppData\Local\Temp\nsj8C0D.tmp\nsExec.dll
            Filesize

            6KB

            MD5

            acc2b699edfea5bf5aae45aba3a41e96

            SHA1

            d2accf4d494e43ceb2cff69abe4dd17147d29cc2

            SHA256

            168a974eaa3f588d759db3f47c1a9fdc3494ba1fa1a73a84e5e3b2a4d58abd7e

            SHA512

            e29ea10ada98c71a18273b04f44f385b120d4e8473e441ce5748cfa44a23648814f2656f429b85440157988c88de776c6ac008dc38bf09cbb746c230a46c69fe

          • \Users\Admin\AppData\Local\Temp\nsj8C0D.tmp\nsExec.dll
            Filesize

            6KB

            MD5

            acc2b699edfea5bf5aae45aba3a41e96

            SHA1

            d2accf4d494e43ceb2cff69abe4dd17147d29cc2

            SHA256

            168a974eaa3f588d759db3f47c1a9fdc3494ba1fa1a73a84e5e3b2a4d58abd7e

            SHA512

            e29ea10ada98c71a18273b04f44f385b120d4e8473e441ce5748cfa44a23648814f2656f429b85440157988c88de776c6ac008dc38bf09cbb746c230a46c69fe

          • \Windows\SysWOW64\hfnapi.dll
            Filesize

            106KB

            MD5

            4fe4a9332ec6c4270eb7648360715bd9

            SHA1

            ccfa1583a2c7487a1f9ba37ebf98465f73b0dc41

            SHA256

            54ad2a466691b613d60ca56381d8cf8cdadcfdb8f7ca20c927502234b8a6d57c

            SHA512

            c955058c242b875e0b741cb2c2c3c8e7bd8dd8fdb00c36f8bb2058ea97f5a63f39357ceeb89d8b70e5615570a4cd3e8e5e4617e1e7d7e2da6c77b62bf403041f

          • \Windows\SysWOW64\hfnapi.dll
            Filesize

            106KB

            MD5

            4fe4a9332ec6c4270eb7648360715bd9

            SHA1

            ccfa1583a2c7487a1f9ba37ebf98465f73b0dc41

            SHA256

            54ad2a466691b613d60ca56381d8cf8cdadcfdb8f7ca20c927502234b8a6d57c

            SHA512

            c955058c242b875e0b741cb2c2c3c8e7bd8dd8fdb00c36f8bb2058ea97f5a63f39357ceeb89d8b70e5615570a4cd3e8e5e4617e1e7d7e2da6c77b62bf403041f

          • \Windows\SysWOW64\hfnapi.dll
            Filesize

            106KB

            MD5

            4fe4a9332ec6c4270eb7648360715bd9

            SHA1

            ccfa1583a2c7487a1f9ba37ebf98465f73b0dc41

            SHA256

            54ad2a466691b613d60ca56381d8cf8cdadcfdb8f7ca20c927502234b8a6d57c

            SHA512

            c955058c242b875e0b741cb2c2c3c8e7bd8dd8fdb00c36f8bb2058ea97f5a63f39357ceeb89d8b70e5615570a4cd3e8e5e4617e1e7d7e2da6c77b62bf403041f

          • \Windows\SysWOW64\hfpapi.dll
            Filesize

            241KB

            MD5

            f99122ad4f21d36b2095ec5c2cf78faf

            SHA1

            23d5706a7000c728138b151a5f7d0b7769c3205f

            SHA256

            d124db87fbb7a209cfd342584c06c2f0f170b23b78699d7ff20f527029e3f6cb

            SHA512

            f099dad11d1b178c67eebf9e344921a9201dcef8b83ee5bd15340adc4b671d7f3a170483d856ddadaf4504e6ef005fbec9fca8ea0ad7f6eb9f8252456efebaae

          • \Windows\SysWOW64\hfpapi.dll
            Filesize

            241KB

            MD5

            f99122ad4f21d36b2095ec5c2cf78faf

            SHA1

            23d5706a7000c728138b151a5f7d0b7769c3205f

            SHA256

            d124db87fbb7a209cfd342584c06c2f0f170b23b78699d7ff20f527029e3f6cb

            SHA512

            f099dad11d1b178c67eebf9e344921a9201dcef8b83ee5bd15340adc4b671d7f3a170483d856ddadaf4504e6ef005fbec9fca8ea0ad7f6eb9f8252456efebaae

          • \Windows\SysWOW64\installd.exe
            Filesize

            108KB

            MD5

            5c82bf0016a6d6ea73a74ee9f01612ad

            SHA1

            6c90c01859da00388b1c2b169873ee5b4ad8962b

            SHA256

            5e06bf14352a4741f378d22a95706a0e1b8ca43d72dd025ac14eefe6556628da

            SHA512

            f6b2d45148bbaaf7b40c1b751ee73c7ce090cfba2414b1e9266768d72bcd68cfa008887a93f54ea8708ec7297d4bb3779d15a38caffb3b6c2144ea7cef16bdf2

          • \Windows\SysWOW64\nethtsrv.exe
            Filesize

            176KB

            MD5

            53c0719aff3908e8a7ca568d53244e1d

            SHA1

            7d365f4f5f706022abd891d38bc27be0895e7bc7

            SHA256

            7bf1af3b603e5d71b14ef5ed45b3170ede8908f05b6576f3d5013379506162d3

            SHA512

            1f94f488d052a5d47d44a6d1f56dd8afd61ba875db0d40a4c0086ffebce62d8dbb204fdfdf092a155d292bdac3b873d365abe10b78c99718a75f579b9b6eb08b

          • \Windows\SysWOW64\netupdsrv.exe
            Filesize

            158KB

            MD5

            07a43604e835575b2928470ffe9f9294

            SHA1

            cef5fe47e0753edc5a94c9704387997ba38207b8

            SHA256

            824e992207947c16a9bd706dca7b8eedebc2af9f97db4edbf0b97a7376832305

            SHA512

            b35a30ff06a107e72f2b89679900c29c990ffe561d341d55fe93f9c9cbe8d6f3faabd5c756bcdc8545e8243cb7ec0e6850a5f4893281844304c1ed18cff1b4eb

          • memory/300-81-0x0000000000000000-mapping.dmp
          • memory/632-70-0x0000000000000000-mapping.dmp
          • memory/956-64-0x0000000000000000-mapping.dmp
          • memory/1676-54-0x00000000753C1000-0x00000000753C3000-memory.dmp
            Filesize

            8KB

          • memory/1676-90-0x0000000000360000-0x00000000007BE000-memory.dmp
            Filesize

            4.4MB

          • memory/1676-61-0x0000000000360000-0x00000000007BE000-memory.dmp
            Filesize

            4.4MB

          • memory/1728-86-0x0000000000000000-mapping.dmp
          • memory/1744-62-0x0000000000000000-mapping.dmp
          • memory/1756-57-0x0000000000000000-mapping.dmp
          • memory/1764-76-0x0000000000000000-mapping.dmp
          • memory/1828-80-0x0000000000000000-mapping.dmp
          • memory/1948-87-0x0000000000000000-mapping.dmp
          • memory/1988-58-0x0000000000000000-mapping.dmp
          • memory/2024-60-0x0000000000000000-mapping.dmp