Analysis

  • max time kernel
    42s
  • max time network
    48s
  • platform
    windows7_x64
  • resource
    win7-20220901-en
  • resource tags

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

General

  • Target

    d152138cdf58a3aa803e10ce5b573ab7210f417a7f99cd177c5fc0b92559525a.exe

  • Size

    603KB

  • MD5

    8d1e141f246b4f197efb4a9262a4ecde

  • SHA1

    47fe8b7d90daa3c61b03a0c0e59e86b1bac1cdbc

  • SHA256

    d152138cdf58a3aa803e10ce5b573ab7210f417a7f99cd177c5fc0b92559525a

  • SHA512

    ec26218b6c614cc9953216803f00df9a2791706670e875a0899e6b45c87e7b04a25865dffd5388d252ee9039b42e086911f62331a54daee16f8e108b9737cc69

  • SSDEEP

    12288:0Iny5DYT8U1dbbIu2Li5XEAcATfDEseecKvt:yUT5nP2LKUzA+nKl

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\d152138cdf58a3aa803e10ce5b573ab7210f417a7f99cd177c5fc0b92559525a.exe
    "C:\Users\Admin\AppData\Local\Temp\d152138cdf58a3aa803e10ce5b573ab7210f417a7f99cd177c5fc0b92559525a.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:1228
    • C:\Windows\SysWOW64\net.exe
      net stop nethttpservice
      2⤵
      • Suspicious use of WriteProcessMemory
      PID:948
      • C:\Windows\SysWOW64\net1.exe
        C:\Windows\system32\net1 stop nethttpservice
        3⤵
          PID:784
      • C:\Windows\SysWOW64\net.exe
        net stop serviceupdater
        2⤵
        • Suspicious use of WriteProcessMemory
        PID:804
        • C:\Windows\SysWOW64\net1.exe
          C:\Windows\system32\net1 stop serviceupdater
          3⤵
            PID:1776
        • C:\Windows\SysWOW64\installd.exe
          "C:\Windows\system32\installd.exe" nethfdrv
          2⤵
          • Executes dropped EXE
          • Loads dropped DLL
          PID:2036
        • C:\Windows\SysWOW64\nethtsrv.exe
          "C:\Windows\system32\nethtsrv.exe" -nfdi
          2⤵
          • Executes dropped EXE
          • Loads dropped DLL
          PID:276
        • C:\Windows\SysWOW64\netupdsrv.exe
          "C:\Windows\system32\netupdsrv.exe" -nfdi
          2⤵
          • Executes dropped EXE
          PID:980
        • C:\Windows\SysWOW64\net.exe
          net start nethttpservice
          2⤵
          • Suspicious use of WriteProcessMemory
          PID:1980
          • C:\Windows\SysWOW64\net1.exe
            C:\Windows\system32\net1 start nethttpservice
            3⤵
              PID:1956
          • C:\Windows\SysWOW64\net.exe
            net start serviceupdater
            2⤵
            • Suspicious use of WriteProcessMemory
            PID:1928
            • C:\Windows\SysWOW64\net1.exe
              C:\Windows\system32\net1 start serviceupdater
              3⤵
                PID:436
          • C:\Windows\SysWOW64\nethtsrv.exe
            C:\Windows\SysWOW64\nethtsrv.exe
            1⤵
            • Executes dropped EXE
            • Loads dropped DLL
            • Suspicious use of AdjustPrivilegeToken
            PID:1968
          • C:\Windows\SysWOW64\netupdsrv.exe
            C:\Windows\SysWOW64\netupdsrv.exe
            1⤵
            • Executes dropped EXE
            PID:800

          Network

          MITRE ATT&CK Enterprise v6

          Replay Monitor

          Loading Replay Monitor...

          Downloads

          • C:\Windows\SysWOW64\hfnapi.dll

            Filesize

            106KB

            MD5

            bdffa9beada81f3f1add791a6e1af7b7

            SHA1

            eb5706f7a465e72c3636a2bb832b88dfe6d39a34

            SHA256

            8c1414752863d1d1da45f567eb0ee51863ffbfa897e9c25565edd51cfd83875f

            SHA512

            33aefcdf9200a56927f99a39660fefcbfd0f66ee08c87b6a1092bd6dd11c35cb1a71ca95c07b7a87902538a18265f3ea97d30d8df8d23efe274ec78397fd3d7e

          • C:\Windows\SysWOW64\hfpapi.dll

            Filesize

            244KB

            MD5

            255d1d6f3bff0c0ce759aba06f265e18

            SHA1

            2eaa2054dec3fab714175b7e59638fa7cd2a4452

            SHA256

            7792cea04275e48bd137f4602f0d539841c5127a3a1e6a2990dc2bddf51ebd1a

            SHA512

            f2f8e703c183c7bd1c956761cbb40f6e50991ae310429aa4a0c4674170f6dcab4154a27fc3ab2c1b5c849cc37502dbae865031d204af7fd240bf5c5f2782e0bd

          • C:\Windows\SysWOW64\installd.exe

            Filesize

            108KB

            MD5

            2bf42e9d6ad69b5470825cc63e8bb8a1

            SHA1

            a44d40b492e3197b68c4cc050853a36edaa08aa9

            SHA256

            817d3316cd65a1c6b83766412a09f44634fd8b366700108f62ebf28303053ea6

            SHA512

            3bcb7191124c79e4e28abb910ae2cd8fb324a0a085014d8f2ca0dbd1662f2f6a1efeaaaabc144969fd2713d3a573a061674136a282026f7d62ea5cc84fdea894

          • C:\Windows\SysWOW64\nethtsrv.exe

            Filesize

            176KB

            MD5

            f149c1ad730d5c2483e2c122ae990bff

            SHA1

            1ff2b257b0b7df9dcd6e908e68fdd55fa9a65558

            SHA256

            59f628f6563df93a1a1c5a7c946508aa744e456bfae4fd202fe1deb9729290c1

            SHA512

            6abcaf72fc1a8023a1b280d496397ec745d7454e6cba30c746101fed16450ab45d3e0279abfd77bb9cdbe2129a1f72173ab6f124da0c0939e1d945cd4de58c46

          • C:\Windows\SysWOW64\nethtsrv.exe

            Filesize

            176KB

            MD5

            f149c1ad730d5c2483e2c122ae990bff

            SHA1

            1ff2b257b0b7df9dcd6e908e68fdd55fa9a65558

            SHA256

            59f628f6563df93a1a1c5a7c946508aa744e456bfae4fd202fe1deb9729290c1

            SHA512

            6abcaf72fc1a8023a1b280d496397ec745d7454e6cba30c746101fed16450ab45d3e0279abfd77bb9cdbe2129a1f72173ab6f124da0c0939e1d945cd4de58c46

          • C:\Windows\SysWOW64\netupdsrv.exe

            Filesize

            158KB

            MD5

            bca94b67d109320697b4fedc1bea9909

            SHA1

            b58f21c0b4d8e8972d13505951f7d40f3643dfc7

            SHA256

            1aaa6a025d140be81a2d4f7da96d81076fb58963b23365ef89b961d195f73b41

            SHA512

            ae6a0f7706a2a1bcf9b561eb2044e31783f5fcc585afb1e222ac27f32b680e868644c729c39a02e42da3f5459dd23007f4b226b4488710f793205d3a8cf72306

          • C:\Windows\SysWOW64\netupdsrv.exe

            Filesize

            158KB

            MD5

            bca94b67d109320697b4fedc1bea9909

            SHA1

            b58f21c0b4d8e8972d13505951f7d40f3643dfc7

            SHA256

            1aaa6a025d140be81a2d4f7da96d81076fb58963b23365ef89b961d195f73b41

            SHA512

            ae6a0f7706a2a1bcf9b561eb2044e31783f5fcc585afb1e222ac27f32b680e868644c729c39a02e42da3f5459dd23007f4b226b4488710f793205d3a8cf72306

          • \Users\Admin\AppData\Local\Temp\nst2E73.tmp\System.dll

            Filesize

            11KB

            MD5

            c17103ae9072a06da581dec998343fc1

            SHA1

            b72148c6bdfaada8b8c3f950e610ee7cf1da1f8d

            SHA256

            dc58d8ad81cacb0c1ed72e33bff8f23ea40b5252b5bb55d393a0903e6819ae2f

            SHA512

            d32a71aaef18e993f28096d536e41c4d016850721b31171513ce28bbd805a54fd290b7c3e9d935f72e676a1acfb4f0dcc89d95040a0dd29f2b6975855c18986f

          • \Users\Admin\AppData\Local\Temp\nst2E73.tmp\nsExec.dll

            Filesize

            6KB

            MD5

            acc2b699edfea5bf5aae45aba3a41e96

            SHA1

            d2accf4d494e43ceb2cff69abe4dd17147d29cc2

            SHA256

            168a974eaa3f588d759db3f47c1a9fdc3494ba1fa1a73a84e5e3b2a4d58abd7e

            SHA512

            e29ea10ada98c71a18273b04f44f385b120d4e8473e441ce5748cfa44a23648814f2656f429b85440157988c88de776c6ac008dc38bf09cbb746c230a46c69fe

          • \Users\Admin\AppData\Local\Temp\nst2E73.tmp\nsExec.dll

            Filesize

            6KB

            MD5

            acc2b699edfea5bf5aae45aba3a41e96

            SHA1

            d2accf4d494e43ceb2cff69abe4dd17147d29cc2

            SHA256

            168a974eaa3f588d759db3f47c1a9fdc3494ba1fa1a73a84e5e3b2a4d58abd7e

            SHA512

            e29ea10ada98c71a18273b04f44f385b120d4e8473e441ce5748cfa44a23648814f2656f429b85440157988c88de776c6ac008dc38bf09cbb746c230a46c69fe

          • \Users\Admin\AppData\Local\Temp\nst2E73.tmp\nsExec.dll

            Filesize

            6KB

            MD5

            acc2b699edfea5bf5aae45aba3a41e96

            SHA1

            d2accf4d494e43ceb2cff69abe4dd17147d29cc2

            SHA256

            168a974eaa3f588d759db3f47c1a9fdc3494ba1fa1a73a84e5e3b2a4d58abd7e

            SHA512

            e29ea10ada98c71a18273b04f44f385b120d4e8473e441ce5748cfa44a23648814f2656f429b85440157988c88de776c6ac008dc38bf09cbb746c230a46c69fe

          • \Users\Admin\AppData\Local\Temp\nst2E73.tmp\nsExec.dll

            Filesize

            6KB

            MD5

            acc2b699edfea5bf5aae45aba3a41e96

            SHA1

            d2accf4d494e43ceb2cff69abe4dd17147d29cc2

            SHA256

            168a974eaa3f588d759db3f47c1a9fdc3494ba1fa1a73a84e5e3b2a4d58abd7e

            SHA512

            e29ea10ada98c71a18273b04f44f385b120d4e8473e441ce5748cfa44a23648814f2656f429b85440157988c88de776c6ac008dc38bf09cbb746c230a46c69fe

          • \Windows\SysWOW64\hfnapi.dll

            Filesize

            106KB

            MD5

            bdffa9beada81f3f1add791a6e1af7b7

            SHA1

            eb5706f7a465e72c3636a2bb832b88dfe6d39a34

            SHA256

            8c1414752863d1d1da45f567eb0ee51863ffbfa897e9c25565edd51cfd83875f

            SHA512

            33aefcdf9200a56927f99a39660fefcbfd0f66ee08c87b6a1092bd6dd11c35cb1a71ca95c07b7a87902538a18265f3ea97d30d8df8d23efe274ec78397fd3d7e

          • \Windows\SysWOW64\hfnapi.dll

            Filesize

            106KB

            MD5

            bdffa9beada81f3f1add791a6e1af7b7

            SHA1

            eb5706f7a465e72c3636a2bb832b88dfe6d39a34

            SHA256

            8c1414752863d1d1da45f567eb0ee51863ffbfa897e9c25565edd51cfd83875f

            SHA512

            33aefcdf9200a56927f99a39660fefcbfd0f66ee08c87b6a1092bd6dd11c35cb1a71ca95c07b7a87902538a18265f3ea97d30d8df8d23efe274ec78397fd3d7e

          • \Windows\SysWOW64\hfnapi.dll

            Filesize

            106KB

            MD5

            bdffa9beada81f3f1add791a6e1af7b7

            SHA1

            eb5706f7a465e72c3636a2bb832b88dfe6d39a34

            SHA256

            8c1414752863d1d1da45f567eb0ee51863ffbfa897e9c25565edd51cfd83875f

            SHA512

            33aefcdf9200a56927f99a39660fefcbfd0f66ee08c87b6a1092bd6dd11c35cb1a71ca95c07b7a87902538a18265f3ea97d30d8df8d23efe274ec78397fd3d7e

          • \Windows\SysWOW64\hfpapi.dll

            Filesize

            244KB

            MD5

            255d1d6f3bff0c0ce759aba06f265e18

            SHA1

            2eaa2054dec3fab714175b7e59638fa7cd2a4452

            SHA256

            7792cea04275e48bd137f4602f0d539841c5127a3a1e6a2990dc2bddf51ebd1a

            SHA512

            f2f8e703c183c7bd1c956761cbb40f6e50991ae310429aa4a0c4674170f6dcab4154a27fc3ab2c1b5c849cc37502dbae865031d204af7fd240bf5c5f2782e0bd

          • \Windows\SysWOW64\hfpapi.dll

            Filesize

            244KB

            MD5

            255d1d6f3bff0c0ce759aba06f265e18

            SHA1

            2eaa2054dec3fab714175b7e59638fa7cd2a4452

            SHA256

            7792cea04275e48bd137f4602f0d539841c5127a3a1e6a2990dc2bddf51ebd1a

            SHA512

            f2f8e703c183c7bd1c956761cbb40f6e50991ae310429aa4a0c4674170f6dcab4154a27fc3ab2c1b5c849cc37502dbae865031d204af7fd240bf5c5f2782e0bd

          • \Windows\SysWOW64\installd.exe

            Filesize

            108KB

            MD5

            2bf42e9d6ad69b5470825cc63e8bb8a1

            SHA1

            a44d40b492e3197b68c4cc050853a36edaa08aa9

            SHA256

            817d3316cd65a1c6b83766412a09f44634fd8b366700108f62ebf28303053ea6

            SHA512

            3bcb7191124c79e4e28abb910ae2cd8fb324a0a085014d8f2ca0dbd1662f2f6a1efeaaaabc144969fd2713d3a573a061674136a282026f7d62ea5cc84fdea894

          • \Windows\SysWOW64\nethtsrv.exe

            Filesize

            176KB

            MD5

            f149c1ad730d5c2483e2c122ae990bff

            SHA1

            1ff2b257b0b7df9dcd6e908e68fdd55fa9a65558

            SHA256

            59f628f6563df93a1a1c5a7c946508aa744e456bfae4fd202fe1deb9729290c1

            SHA512

            6abcaf72fc1a8023a1b280d496397ec745d7454e6cba30c746101fed16450ab45d3e0279abfd77bb9cdbe2129a1f72173ab6f124da0c0939e1d945cd4de58c46

          • \Windows\SysWOW64\netupdsrv.exe

            Filesize

            158KB

            MD5

            bca94b67d109320697b4fedc1bea9909

            SHA1

            b58f21c0b4d8e8972d13505951f7d40f3643dfc7

            SHA256

            1aaa6a025d140be81a2d4f7da96d81076fb58963b23365ef89b961d195f73b41

            SHA512

            ae6a0f7706a2a1bcf9b561eb2044e31783f5fcc585afb1e222ac27f32b680e868644c729c39a02e42da3f5459dd23007f4b226b4488710f793205d3a8cf72306

          • memory/276-70-0x0000000000000000-mapping.dmp

          • memory/436-87-0x0000000000000000-mapping.dmp

          • memory/784-59-0x0000000000000000-mapping.dmp

          • memory/804-61-0x0000000000000000-mapping.dmp

          • memory/948-58-0x0000000000000000-mapping.dmp

          • memory/980-76-0x0000000000000000-mapping.dmp

          • memory/1228-90-0x0000000000360000-0x00000000007BE000-memory.dmp

            Filesize

            4.4MB

          • memory/1228-54-0x0000000075A11000-0x0000000075A13000-memory.dmp

            Filesize

            8KB

          • memory/1228-55-0x0000000000360000-0x00000000007BE000-memory.dmp

            Filesize

            4.4MB

          • memory/1776-62-0x0000000000000000-mapping.dmp

          • memory/1928-86-0x0000000000000000-mapping.dmp

          • memory/1956-81-0x0000000000000000-mapping.dmp

          • memory/1980-80-0x0000000000000000-mapping.dmp

          • memory/2036-64-0x0000000000000000-mapping.dmp