Analysis

  • max time kernel
    202s
  • max time network
    221s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20221111-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20221111-enlocale:en-usos:windows10-2004-x64system
  • submitted
    23-11-2022 10:09

General

  • Target

    e2b74e3fc988c17b4df5140c5f13cbbfadfe81cc5ff6697508807275f9f9bb3e.exe

  • Size

    601KB

  • MD5

    0b016b4cd5492bf8db1332d059e66805

  • SHA1

    72b2aac69cb2bb7384e278d0155530b8a8e9a392

  • SHA256

    e2b74e3fc988c17b4df5140c5f13cbbfadfe81cc5ff6697508807275f9f9bb3e

  • SHA512

    37a1932a70c2689183929b30fb91aba7039722a349725a9387a6d9c10b3fa81366e1dce656d21670f0b57b2ebf6e081ad6ea0ade6c847da75d9f9f4b3d866cd5

  • SSDEEP

    12288:AIny5DYTIM7++ZpfMRuQvmtsLGwOBFvubPAQYw6bQSvhy1:+UTIMxZpqPvzGHBFvubP967I

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\e2b74e3fc988c17b4df5140c5f13cbbfadfe81cc5ff6697508807275f9f9bb3e.exe
    "C:\Users\Admin\AppData\Local\Temp\e2b74e3fc988c17b4df5140c5f13cbbfadfe81cc5ff6697508807275f9f9bb3e.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:2236
    • C:\Windows\SysWOW64\net.exe
      net stop nethttpservice
      2⤵
      • Suspicious use of WriteProcessMemory
      PID:4400
      • C:\Windows\SysWOW64\net1.exe
        C:\Windows\system32\net1 stop nethttpservice
        3⤵
          PID:3636
      • C:\Windows\SysWOW64\net.exe
        net stop serviceupdater
        2⤵
        • Suspicious use of WriteProcessMemory
        PID:3848
        • C:\Windows\SysWOW64\net1.exe
          C:\Windows\system32\net1 stop serviceupdater
          3⤵
            PID:2952
        • C:\Windows\SysWOW64\installd.exe
          "C:\Windows\system32\installd.exe" nethfdrv
          2⤵
          • Executes dropped EXE
          • Loads dropped DLL
          PID:3324
        • C:\Windows\SysWOW64\nethtsrv.exe
          "C:\Windows\system32\nethtsrv.exe" -nfdi
          2⤵
          • Executes dropped EXE
          • Loads dropped DLL
          PID:5108
        • C:\Windows\SysWOW64\netupdsrv.exe
          "C:\Windows\system32\netupdsrv.exe" -nfdi
          2⤵
          • Executes dropped EXE
          PID:1468
        • C:\Windows\SysWOW64\net.exe
          net start nethttpservice
          2⤵
          • Suspicious use of WriteProcessMemory
          PID:3228
          • C:\Windows\SysWOW64\net1.exe
            C:\Windows\system32\net1 start nethttpservice
            3⤵
              PID:2228
          • C:\Windows\SysWOW64\net.exe
            net start serviceupdater
            2⤵
            • Suspicious use of WriteProcessMemory
            PID:2104
            • C:\Windows\SysWOW64\net1.exe
              C:\Windows\system32\net1 start serviceupdater
              3⤵
                PID:856
          • 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:4104
          • C:\Windows\SysWOW64\netupdsrv.exe
            C:\Windows\SysWOW64\netupdsrv.exe
            1⤵
            • Executes dropped EXE
            PID:2252

          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:\Users\Admin\AppData\Local\Temp\nst5BFD.tmp\System.dll
            Filesize

            11KB

            MD5

            c17103ae9072a06da581dec998343fc1

            SHA1

            b72148c6bdfaada8b8c3f950e610ee7cf1da1f8d

            SHA256

            dc58d8ad81cacb0c1ed72e33bff8f23ea40b5252b5bb55d393a0903e6819ae2f

            SHA512

            d32a71aaef18e993f28096d536e41c4d016850721b31171513ce28bbd805a54fd290b7c3e9d935f72e676a1acfb4f0dcc89d95040a0dd29f2b6975855c18986f

          • C:\Users\Admin\AppData\Local\Temp\nst5BFD.tmp\nsExec.dll
            Filesize

            6KB

            MD5

            acc2b699edfea5bf5aae45aba3a41e96

            SHA1

            d2accf4d494e43ceb2cff69abe4dd17147d29cc2

            SHA256

            168a974eaa3f588d759db3f47c1a9fdc3494ba1fa1a73a84e5e3b2a4d58abd7e

            SHA512

            e29ea10ada98c71a18273b04f44f385b120d4e8473e441ce5748cfa44a23648814f2656f429b85440157988c88de776c6ac008dc38bf09cbb746c230a46c69fe

          • C:\Users\Admin\AppData\Local\Temp\nst5BFD.tmp\nsExec.dll
            Filesize

            6KB

            MD5

            acc2b699edfea5bf5aae45aba3a41e96

            SHA1

            d2accf4d494e43ceb2cff69abe4dd17147d29cc2

            SHA256

            168a974eaa3f588d759db3f47c1a9fdc3494ba1fa1a73a84e5e3b2a4d58abd7e

            SHA512

            e29ea10ada98c71a18273b04f44f385b120d4e8473e441ce5748cfa44a23648814f2656f429b85440157988c88de776c6ac008dc38bf09cbb746c230a46c69fe

          • C:\Users\Admin\AppData\Local\Temp\nst5BFD.tmp\nsExec.dll
            Filesize

            6KB

            MD5

            acc2b699edfea5bf5aae45aba3a41e96

            SHA1

            d2accf4d494e43ceb2cff69abe4dd17147d29cc2

            SHA256

            168a974eaa3f588d759db3f47c1a9fdc3494ba1fa1a73a84e5e3b2a4d58abd7e

            SHA512

            e29ea10ada98c71a18273b04f44f385b120d4e8473e441ce5748cfa44a23648814f2656f429b85440157988c88de776c6ac008dc38bf09cbb746c230a46c69fe

          • C:\Users\Admin\AppData\Local\Temp\nst5BFD.tmp\nsExec.dll
            Filesize

            6KB

            MD5

            acc2b699edfea5bf5aae45aba3a41e96

            SHA1

            d2accf4d494e43ceb2cff69abe4dd17147d29cc2

            SHA256

            168a974eaa3f588d759db3f47c1a9fdc3494ba1fa1a73a84e5e3b2a4d58abd7e

            SHA512

            e29ea10ada98c71a18273b04f44f385b120d4e8473e441ce5748cfa44a23648814f2656f429b85440157988c88de776c6ac008dc38bf09cbb746c230a46c69fe

          • C:\Users\Admin\AppData\Local\Temp\nst5BFD.tmp\nsExec.dll
            Filesize

            6KB

            MD5

            acc2b699edfea5bf5aae45aba3a41e96

            SHA1

            d2accf4d494e43ceb2cff69abe4dd17147d29cc2

            SHA256

            168a974eaa3f588d759db3f47c1a9fdc3494ba1fa1a73a84e5e3b2a4d58abd7e

            SHA512

            e29ea10ada98c71a18273b04f44f385b120d4e8473e441ce5748cfa44a23648814f2656f429b85440157988c88de776c6ac008dc38bf09cbb746c230a46c69fe

          • C:\Users\Admin\AppData\Local\Temp\nst5BFD.tmp\nsExec.dll
            Filesize

            6KB

            MD5

            acc2b699edfea5bf5aae45aba3a41e96

            SHA1

            d2accf4d494e43ceb2cff69abe4dd17147d29cc2

            SHA256

            168a974eaa3f588d759db3f47c1a9fdc3494ba1fa1a73a84e5e3b2a4d58abd7e

            SHA512

            e29ea10ada98c71a18273b04f44f385b120d4e8473e441ce5748cfa44a23648814f2656f429b85440157988c88de776c6ac008dc38bf09cbb746c230a46c69fe

          • C:\Users\Admin\AppData\Local\Temp\nst5BFD.tmp\nsExec.dll
            Filesize

            6KB

            MD5

            acc2b699edfea5bf5aae45aba3a41e96

            SHA1

            d2accf4d494e43ceb2cff69abe4dd17147d29cc2

            SHA256

            168a974eaa3f588d759db3f47c1a9fdc3494ba1fa1a73a84e5e3b2a4d58abd7e

            SHA512

            e29ea10ada98c71a18273b04f44f385b120d4e8473e441ce5748cfa44a23648814f2656f429b85440157988c88de776c6ac008dc38bf09cbb746c230a46c69fe

          • C:\Users\Admin\AppData\Local\Temp\nst5BFD.tmp\nsExec.dll
            Filesize

            6KB

            MD5

            acc2b699edfea5bf5aae45aba3a41e96

            SHA1

            d2accf4d494e43ceb2cff69abe4dd17147d29cc2

            SHA256

            168a974eaa3f588d759db3f47c1a9fdc3494ba1fa1a73a84e5e3b2a4d58abd7e

            SHA512

            e29ea10ada98c71a18273b04f44f385b120d4e8473e441ce5748cfa44a23648814f2656f429b85440157988c88de776c6ac008dc38bf09cbb746c230a46c69fe

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

            106KB

            MD5

            90a771e640d671b8db39fa7107fedead

            SHA1

            8c3a0b4acd8d80616bf932b40d5b3f165c9aa5c8

            SHA256

            d19a04531ace4cdb369f933940614d63d52056ea5c79240d0bbfa7aa7017b065

            SHA512

            20b91cc0e8515a37a4083f6f7adccf78a6da0fb9bfb7088b71933571d8e086fe905c56932cc0ea45a08198b4a72fd3f3e2cbb3f5638e7c6f68541c7404e955d1

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

            106KB

            MD5

            90a771e640d671b8db39fa7107fedead

            SHA1

            8c3a0b4acd8d80616bf932b40d5b3f165c9aa5c8

            SHA256

            d19a04531ace4cdb369f933940614d63d52056ea5c79240d0bbfa7aa7017b065

            SHA512

            20b91cc0e8515a37a4083f6f7adccf78a6da0fb9bfb7088b71933571d8e086fe905c56932cc0ea45a08198b4a72fd3f3e2cbb3f5638e7c6f68541c7404e955d1

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

            106KB

            MD5

            90a771e640d671b8db39fa7107fedead

            SHA1

            8c3a0b4acd8d80616bf932b40d5b3f165c9aa5c8

            SHA256

            d19a04531ace4cdb369f933940614d63d52056ea5c79240d0bbfa7aa7017b065

            SHA512

            20b91cc0e8515a37a4083f6f7adccf78a6da0fb9bfb7088b71933571d8e086fe905c56932cc0ea45a08198b4a72fd3f3e2cbb3f5638e7c6f68541c7404e955d1

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

            106KB

            MD5

            90a771e640d671b8db39fa7107fedead

            SHA1

            8c3a0b4acd8d80616bf932b40d5b3f165c9aa5c8

            SHA256

            d19a04531ace4cdb369f933940614d63d52056ea5c79240d0bbfa7aa7017b065

            SHA512

            20b91cc0e8515a37a4083f6f7adccf78a6da0fb9bfb7088b71933571d8e086fe905c56932cc0ea45a08198b4a72fd3f3e2cbb3f5638e7c6f68541c7404e955d1

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

            241KB

            MD5

            441e85cd773b017623479d6f3a42ef96

            SHA1

            912aba82ea5c6c5e5527a4b81cf4d71d50d8c101

            SHA256

            76603ee00d25b0f96d697f97c8555c8acba3e057b748fa655932b736cbefe7ed

            SHA512

            297c3009e2fd1df9c56e366aa2bbc3f9aba98ebcc4fa81b086035383c04cb25eb197704760020d45da090741e5c80b34d0ae18e50dd1139fd86a74b96c92e491

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

            241KB

            MD5

            441e85cd773b017623479d6f3a42ef96

            SHA1

            912aba82ea5c6c5e5527a4b81cf4d71d50d8c101

            SHA256

            76603ee00d25b0f96d697f97c8555c8acba3e057b748fa655932b736cbefe7ed

            SHA512

            297c3009e2fd1df9c56e366aa2bbc3f9aba98ebcc4fa81b086035383c04cb25eb197704760020d45da090741e5c80b34d0ae18e50dd1139fd86a74b96c92e491

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

            241KB

            MD5

            441e85cd773b017623479d6f3a42ef96

            SHA1

            912aba82ea5c6c5e5527a4b81cf4d71d50d8c101

            SHA256

            76603ee00d25b0f96d697f97c8555c8acba3e057b748fa655932b736cbefe7ed

            SHA512

            297c3009e2fd1df9c56e366aa2bbc3f9aba98ebcc4fa81b086035383c04cb25eb197704760020d45da090741e5c80b34d0ae18e50dd1139fd86a74b96c92e491

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

            108KB

            MD5

            e3ba1d7156c819834c0bd6a99e6469e1

            SHA1

            4bc3dce96172baf20de120adeb818e06472098aa

            SHA256

            bbe5fd6b98bd4772f681ffe6a57922e2c71977c3f81568c16db1d112a95bbd9a

            SHA512

            abe551be7c89da26dcaa4ab52c32ffa4b0c6bc6f36c27ca54dff5ad720026ad5d35e3cdde4728a7c5b9d85d044d42d10b9acf0ea715581d6a58de3cf4607d1fc

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

            108KB

            MD5

            e3ba1d7156c819834c0bd6a99e6469e1

            SHA1

            4bc3dce96172baf20de120adeb818e06472098aa

            SHA256

            bbe5fd6b98bd4772f681ffe6a57922e2c71977c3f81568c16db1d112a95bbd9a

            SHA512

            abe551be7c89da26dcaa4ab52c32ffa4b0c6bc6f36c27ca54dff5ad720026ad5d35e3cdde4728a7c5b9d85d044d42d10b9acf0ea715581d6a58de3cf4607d1fc

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

            176KB

            MD5

            d8ef2ecda5e601d3cade69702cb2482c

            SHA1

            a2eafd3373b60884f12312eaa8da69fb8002ba46

            SHA256

            78ba48f9d1a39e5ee2a1105ad930c7cda3fe961ef7cc642fb9050f889f62bfc4

            SHA512

            3d3818569dbda8957147c6920e839c0dd815d2e83e0568136713bbd9d7715fab6848719edc5d39d2244422d5c6cbed17b009f64791739ab74c0adbcdb23dbb9a

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

            176KB

            MD5

            d8ef2ecda5e601d3cade69702cb2482c

            SHA1

            a2eafd3373b60884f12312eaa8da69fb8002ba46

            SHA256

            78ba48f9d1a39e5ee2a1105ad930c7cda3fe961ef7cc642fb9050f889f62bfc4

            SHA512

            3d3818569dbda8957147c6920e839c0dd815d2e83e0568136713bbd9d7715fab6848719edc5d39d2244422d5c6cbed17b009f64791739ab74c0adbcdb23dbb9a

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

            176KB

            MD5

            d8ef2ecda5e601d3cade69702cb2482c

            SHA1

            a2eafd3373b60884f12312eaa8da69fb8002ba46

            SHA256

            78ba48f9d1a39e5ee2a1105ad930c7cda3fe961ef7cc642fb9050f889f62bfc4

            SHA512

            3d3818569dbda8957147c6920e839c0dd815d2e83e0568136713bbd9d7715fab6848719edc5d39d2244422d5c6cbed17b009f64791739ab74c0adbcdb23dbb9a

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

            158KB

            MD5

            6527016425e8f7abb079cd62b8956dd7

            SHA1

            6f4a9d4eb59e3da91b1858eedc53751c8eeb0711

            SHA256

            b1864c2d00d1089218919dc962e38cbc30a746200b73ed04248547c92effb7ca

            SHA512

            8da14c0d279efcc8cfee9fb289923cbc4f716b8d1fc9b98a9d0df6a25be32457cc8631424a4275ea13a5db6580f70f089ae09e92a78aeda84cc3e5b57332f9ab

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

            158KB

            MD5

            6527016425e8f7abb079cd62b8956dd7

            SHA1

            6f4a9d4eb59e3da91b1858eedc53751c8eeb0711

            SHA256

            b1864c2d00d1089218919dc962e38cbc30a746200b73ed04248547c92effb7ca

            SHA512

            8da14c0d279efcc8cfee9fb289923cbc4f716b8d1fc9b98a9d0df6a25be32457cc8631424a4275ea13a5db6580f70f089ae09e92a78aeda84cc3e5b57332f9ab

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

            158KB

            MD5

            6527016425e8f7abb079cd62b8956dd7

            SHA1

            6f4a9d4eb59e3da91b1858eedc53751c8eeb0711

            SHA256

            b1864c2d00d1089218919dc962e38cbc30a746200b73ed04248547c92effb7ca

            SHA512

            8da14c0d279efcc8cfee9fb289923cbc4f716b8d1fc9b98a9d0df6a25be32457cc8631424a4275ea13a5db6580f70f089ae09e92a78aeda84cc3e5b57332f9ab

          • memory/856-167-0x0000000000000000-mapping.dmp
          • memory/1468-153-0x0000000000000000-mapping.dmp
          • memory/2104-166-0x0000000000000000-mapping.dmp
          • memory/2228-159-0x0000000000000000-mapping.dmp
          • memory/2236-132-0x0000000000360000-0x00000000007BE000-memory.dmp
            Filesize

            4.4MB

          • memory/2236-161-0x0000000000360000-0x00000000007BE000-memory.dmp
            Filesize

            4.4MB

          • memory/2236-169-0x0000000000360000-0x00000000007BE000-memory.dmp
            Filesize

            4.4MB

          • memory/2952-141-0x0000000000000000-mapping.dmp
          • memory/3228-158-0x0000000000000000-mapping.dmp
          • memory/3324-142-0x0000000000000000-mapping.dmp
          • memory/3636-137-0x0000000000000000-mapping.dmp
          • memory/3848-140-0x0000000000000000-mapping.dmp
          • memory/4400-136-0x0000000000000000-mapping.dmp
          • memory/5108-147-0x0000000000000000-mapping.dmp