Analysis

  • max time kernel
    44s
  • max time network
    49s
  • platform
    windows7_x64
  • resource
    win7-20220901-en
  • resource tags

    arch:x64arch:x86image:win7-20220901-enlocale:en-usos:windows7-x64system
  • submitted
    23-11-2022 10:59

General

  • Target

    1e7d8ccaa4339ba3d22f16d2dd712b6e48e1bf5c974914084ebfb0fb34726441.exe

  • Size

    445KB

  • MD5

    7c5b95e192c9786123142629d0f1db28

  • SHA1

    8fca8c2ac1a2991d79868c2e0740c4ef6316a586

  • SHA256

    1e7d8ccaa4339ba3d22f16d2dd712b6e48e1bf5c974914084ebfb0fb34726441

  • SHA512

    e8650ac80fe2cac59c9c500a6a5ee6b753f81e99f640c7d171432456429be025e51853d55692b3ad095d77fdd10072e9ae55c1372d3b2faccfeab6dd6930ead3

  • SSDEEP

    12288:SYyi7xNHaE+DnH5rURWiAfrmaL2iSf/EBWNoW:SYyiLGZgEfyi2XEBWf

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\1e7d8ccaa4339ba3d22f16d2dd712b6e48e1bf5c974914084ebfb0fb34726441.exe
    "C:\Users\Admin\AppData\Local\Temp\1e7d8ccaa4339ba3d22f16d2dd712b6e48e1bf5c974914084ebfb0fb34726441.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:1396
    • C:\Windows\SysWOW64\net.exe
      net stop nethttpservice
      2⤵
      • Suspicious use of WriteProcessMemory
      PID:900
      • C:\Windows\SysWOW64\net1.exe
        C:\Windows\system32\net1 stop nethttpservice
        3⤵
          PID:1164
      • C:\Windows\SysWOW64\net.exe
        net stop serviceupdater
        2⤵
        • Suspicious use of WriteProcessMemory
        PID:1652
        • C:\Windows\SysWOW64\net1.exe
          C:\Windows\system32\net1 stop serviceupdater
          3⤵
            PID:1144
        • C:\Windows\SysWOW64\installd.exe
          "C:\Windows\system32\installd.exe" nethfdrv
          2⤵
          • Executes dropped EXE
          • Loads dropped DLL
          PID:640
        • C:\Windows\SysWOW64\nethtsrv.exe
          "C:\Windows\system32\nethtsrv.exe" -nfdi
          2⤵
          • Executes dropped EXE
          • Loads dropped DLL
          PID:1876
        • C:\Windows\SysWOW64\netupdsrv.exe
          "C:\Windows\system32\netupdsrv.exe" -nfdi
          2⤵
          • Executes dropped EXE
          PID:1504
        • C:\Windows\SysWOW64\net.exe
          net start nethttpservice
          2⤵
          • Suspicious use of WriteProcessMemory
          PID:1908
          • C:\Windows\SysWOW64\net1.exe
            C:\Windows\system32\net1 start nethttpservice
            3⤵
              PID:1752
          • C:\Windows\SysWOW64\net.exe
            net start serviceupdater
            2⤵
            • Suspicious use of WriteProcessMemory
            PID:1756
            • C:\Windows\SysWOW64\net1.exe
              C:\Windows\system32\net1 start serviceupdater
              3⤵
                PID:1900
          • C:\Windows\SysWOW64\nethtsrv.exe
            C:\Windows\SysWOW64\nethtsrv.exe
            1⤵
            • Executes dropped EXE
            • Loads dropped DLL
            • Suspicious use of AdjustPrivilegeToken
            PID:268
          • C:\Windows\SysWOW64\netupdsrv.exe
            C:\Windows\SysWOW64\netupdsrv.exe
            1⤵
            • Executes dropped EXE
            PID:1508

          Network

          MITRE ATT&CK Enterprise v6

          Replay Monitor

          Loading Replay Monitor...

          Downloads

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

            106KB

            MD5

            5065f4e665fe2f973d0b89c2af033c3b

            SHA1

            df999ffdbb38586ed6b11824b6b679de28d5711c

            SHA256

            9cef7b74b86c15f2fd05cf2ef0a647bd0c68ee4d597f5b2f90df8b10af42f6de

            SHA512

            e9e91b93db058fe8cabb77685c08d023bcb5a66bdd77e6ae0f0a1296cb56301bb49c5940b58d941dc92c194d88765fa36f2114acd2e456bcceb3195b3f92a9d5

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

            241KB

            MD5

            0eb13b736958e4ac676b952b75aa587a

            SHA1

            d84c476d6ce86cdda63df2780c827ef42df1b2dc

            SHA256

            ccb3ba53c316ea31c07ac5f248872f2488e0cab240618c9fab23db6c4309e024

            SHA512

            872ff5581ada209f1ee074698f82cd3985e287f28a275f45e9196fbcc71f9a06503222e12645a1fc43b81ec6bd774d9c1844cdc540e4e9a4df0d809518378a8d

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

            108KB

            MD5

            a05f0c1f83c16f13329185602e0e718e

            SHA1

            7b18cefa0185e97f4dfd7a492e43f0fa76a594c1

            SHA256

            b0d40b1e8a33559e1021e04d6dfd55ddb8b15c41faa9d426630267672082ea35

            SHA512

            33a3627c646e67ebc35bbe5a8741705671a721deb36172f9789b787a97743be9547204168b27118c7f3c039ba87c307161c8753e25c42a539f2758a445cb7dd6

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

            176KB

            MD5

            3c299f8acc404eca3a4874ef7108718e

            SHA1

            01c430f94d31e06a90c244e9f8f0ea24b7d17e78

            SHA256

            5746c165563e56113fab9f9c890b2b345295774c0ec60397e504761764d890e3

            SHA512

            8000c0220f357b0cda612b43e38721f77733021512d019920aa84c18db8c74ffd1fae85396a4505dd7aef7e00238de937e8b3a6ddf8059e981d709e06d43fe76

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

            176KB

            MD5

            3c299f8acc404eca3a4874ef7108718e

            SHA1

            01c430f94d31e06a90c244e9f8f0ea24b7d17e78

            SHA256

            5746c165563e56113fab9f9c890b2b345295774c0ec60397e504761764d890e3

            SHA512

            8000c0220f357b0cda612b43e38721f77733021512d019920aa84c18db8c74ffd1fae85396a4505dd7aef7e00238de937e8b3a6ddf8059e981d709e06d43fe76

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

            158KB

            MD5

            14a381104eb44b76e8364538f4b25892

            SHA1

            2360fe9b4dc6d286251577881b4323362a8ced73

            SHA256

            b36d64aeecadc0d740f74b1e9ec7a2af13c6d50da7e0c18458b3ea229fb7f18d

            SHA512

            a68c2b8b084a663a6f482b8ac826abf373b5e871d26e2a8d9d614a0489f0d791344c11ccba9b2db8a628de70721a5a9cec0c0723247db7605daa652fb46af636

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

            158KB

            MD5

            14a381104eb44b76e8364538f4b25892

            SHA1

            2360fe9b4dc6d286251577881b4323362a8ced73

            SHA256

            b36d64aeecadc0d740f74b1e9ec7a2af13c6d50da7e0c18458b3ea229fb7f18d

            SHA512

            a68c2b8b084a663a6f482b8ac826abf373b5e871d26e2a8d9d614a0489f0d791344c11ccba9b2db8a628de70721a5a9cec0c0723247db7605daa652fb46af636

          • \Users\Admin\AppData\Local\Temp\nsy7E0.tmp\System.dll
            Filesize

            11KB

            MD5

            c17103ae9072a06da581dec998343fc1

            SHA1

            b72148c6bdfaada8b8c3f950e610ee7cf1da1f8d

            SHA256

            dc58d8ad81cacb0c1ed72e33bff8f23ea40b5252b5bb55d393a0903e6819ae2f

            SHA512

            d32a71aaef18e993f28096d536e41c4d016850721b31171513ce28bbd805a54fd290b7c3e9d935f72e676a1acfb4f0dcc89d95040a0dd29f2b6975855c18986f

          • \Users\Admin\AppData\Local\Temp\nsy7E0.tmp\nsExec.dll
            Filesize

            6KB

            MD5

            acc2b699edfea5bf5aae45aba3a41e96

            SHA1

            d2accf4d494e43ceb2cff69abe4dd17147d29cc2

            SHA256

            168a974eaa3f588d759db3f47c1a9fdc3494ba1fa1a73a84e5e3b2a4d58abd7e

            SHA512

            e29ea10ada98c71a18273b04f44f385b120d4e8473e441ce5748cfa44a23648814f2656f429b85440157988c88de776c6ac008dc38bf09cbb746c230a46c69fe

          • \Users\Admin\AppData\Local\Temp\nsy7E0.tmp\nsExec.dll
            Filesize

            6KB

            MD5

            acc2b699edfea5bf5aae45aba3a41e96

            SHA1

            d2accf4d494e43ceb2cff69abe4dd17147d29cc2

            SHA256

            168a974eaa3f588d759db3f47c1a9fdc3494ba1fa1a73a84e5e3b2a4d58abd7e

            SHA512

            e29ea10ada98c71a18273b04f44f385b120d4e8473e441ce5748cfa44a23648814f2656f429b85440157988c88de776c6ac008dc38bf09cbb746c230a46c69fe

          • \Users\Admin\AppData\Local\Temp\nsy7E0.tmp\nsExec.dll
            Filesize

            6KB

            MD5

            acc2b699edfea5bf5aae45aba3a41e96

            SHA1

            d2accf4d494e43ceb2cff69abe4dd17147d29cc2

            SHA256

            168a974eaa3f588d759db3f47c1a9fdc3494ba1fa1a73a84e5e3b2a4d58abd7e

            SHA512

            e29ea10ada98c71a18273b04f44f385b120d4e8473e441ce5748cfa44a23648814f2656f429b85440157988c88de776c6ac008dc38bf09cbb746c230a46c69fe

          • \Users\Admin\AppData\Local\Temp\nsy7E0.tmp\nsExec.dll
            Filesize

            6KB

            MD5

            acc2b699edfea5bf5aae45aba3a41e96

            SHA1

            d2accf4d494e43ceb2cff69abe4dd17147d29cc2

            SHA256

            168a974eaa3f588d759db3f47c1a9fdc3494ba1fa1a73a84e5e3b2a4d58abd7e

            SHA512

            e29ea10ada98c71a18273b04f44f385b120d4e8473e441ce5748cfa44a23648814f2656f429b85440157988c88de776c6ac008dc38bf09cbb746c230a46c69fe

          • \Windows\SysWOW64\hfnapi.dll
            Filesize

            106KB

            MD5

            5065f4e665fe2f973d0b89c2af033c3b

            SHA1

            df999ffdbb38586ed6b11824b6b679de28d5711c

            SHA256

            9cef7b74b86c15f2fd05cf2ef0a647bd0c68ee4d597f5b2f90df8b10af42f6de

            SHA512

            e9e91b93db058fe8cabb77685c08d023bcb5a66bdd77e6ae0f0a1296cb56301bb49c5940b58d941dc92c194d88765fa36f2114acd2e456bcceb3195b3f92a9d5

          • \Windows\SysWOW64\hfnapi.dll
            Filesize

            106KB

            MD5

            5065f4e665fe2f973d0b89c2af033c3b

            SHA1

            df999ffdbb38586ed6b11824b6b679de28d5711c

            SHA256

            9cef7b74b86c15f2fd05cf2ef0a647bd0c68ee4d597f5b2f90df8b10af42f6de

            SHA512

            e9e91b93db058fe8cabb77685c08d023bcb5a66bdd77e6ae0f0a1296cb56301bb49c5940b58d941dc92c194d88765fa36f2114acd2e456bcceb3195b3f92a9d5

          • \Windows\SysWOW64\hfnapi.dll
            Filesize

            106KB

            MD5

            5065f4e665fe2f973d0b89c2af033c3b

            SHA1

            df999ffdbb38586ed6b11824b6b679de28d5711c

            SHA256

            9cef7b74b86c15f2fd05cf2ef0a647bd0c68ee4d597f5b2f90df8b10af42f6de

            SHA512

            e9e91b93db058fe8cabb77685c08d023bcb5a66bdd77e6ae0f0a1296cb56301bb49c5940b58d941dc92c194d88765fa36f2114acd2e456bcceb3195b3f92a9d5

          • \Windows\SysWOW64\hfpapi.dll
            Filesize

            241KB

            MD5

            0eb13b736958e4ac676b952b75aa587a

            SHA1

            d84c476d6ce86cdda63df2780c827ef42df1b2dc

            SHA256

            ccb3ba53c316ea31c07ac5f248872f2488e0cab240618c9fab23db6c4309e024

            SHA512

            872ff5581ada209f1ee074698f82cd3985e287f28a275f45e9196fbcc71f9a06503222e12645a1fc43b81ec6bd774d9c1844cdc540e4e9a4df0d809518378a8d

          • \Windows\SysWOW64\hfpapi.dll
            Filesize

            241KB

            MD5

            0eb13b736958e4ac676b952b75aa587a

            SHA1

            d84c476d6ce86cdda63df2780c827ef42df1b2dc

            SHA256

            ccb3ba53c316ea31c07ac5f248872f2488e0cab240618c9fab23db6c4309e024

            SHA512

            872ff5581ada209f1ee074698f82cd3985e287f28a275f45e9196fbcc71f9a06503222e12645a1fc43b81ec6bd774d9c1844cdc540e4e9a4df0d809518378a8d

          • \Windows\SysWOW64\installd.exe
            Filesize

            108KB

            MD5

            a05f0c1f83c16f13329185602e0e718e

            SHA1

            7b18cefa0185e97f4dfd7a492e43f0fa76a594c1

            SHA256

            b0d40b1e8a33559e1021e04d6dfd55ddb8b15c41faa9d426630267672082ea35

            SHA512

            33a3627c646e67ebc35bbe5a8741705671a721deb36172f9789b787a97743be9547204168b27118c7f3c039ba87c307161c8753e25c42a539f2758a445cb7dd6

          • \Windows\SysWOW64\nethtsrv.exe
            Filesize

            176KB

            MD5

            3c299f8acc404eca3a4874ef7108718e

            SHA1

            01c430f94d31e06a90c244e9f8f0ea24b7d17e78

            SHA256

            5746c165563e56113fab9f9c890b2b345295774c0ec60397e504761764d890e3

            SHA512

            8000c0220f357b0cda612b43e38721f77733021512d019920aa84c18db8c74ffd1fae85396a4505dd7aef7e00238de937e8b3a6ddf8059e981d709e06d43fe76

          • \Windows\SysWOW64\netupdsrv.exe
            Filesize

            158KB

            MD5

            14a381104eb44b76e8364538f4b25892

            SHA1

            2360fe9b4dc6d286251577881b4323362a8ced73

            SHA256

            b36d64aeecadc0d740f74b1e9ec7a2af13c6d50da7e0c18458b3ea229fb7f18d

            SHA512

            a68c2b8b084a663a6f482b8ac826abf373b5e871d26e2a8d9d614a0489f0d791344c11ccba9b2db8a628de70721a5a9cec0c0723247db7605daa652fb46af636

          • memory/640-63-0x0000000000000000-mapping.dmp
          • memory/900-57-0x0000000000000000-mapping.dmp
          • memory/1144-61-0x0000000000000000-mapping.dmp
          • memory/1164-58-0x0000000000000000-mapping.dmp
          • memory/1396-54-0x00000000760E1000-0x00000000760E3000-memory.dmp
            Filesize

            8KB

          • memory/1504-75-0x0000000000000000-mapping.dmp
          • memory/1652-60-0x0000000000000000-mapping.dmp
          • memory/1752-80-0x0000000000000000-mapping.dmp
          • memory/1756-85-0x0000000000000000-mapping.dmp
          • memory/1876-69-0x0000000000000000-mapping.dmp
          • memory/1900-86-0x0000000000000000-mapping.dmp
          • memory/1908-79-0x0000000000000000-mapping.dmp