Analysis

  • max time kernel
    157s
  • max time network
    174s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20220812-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20220812-enlocale:en-usos:windows10-2004-x64system
  • submitted
    23-11-2022 10:31

General

  • Target

    1db741ad71fd78dbf156fe72a4840d61349dc1af75bbe08635e9b4d4af26105c.exe

  • Size

    601KB

  • MD5

    95729bf843161984c698e088d336738d

  • SHA1

    b68fa1a3ee8680647933f8600cefe91c9c34d56c

  • SHA256

    1db741ad71fd78dbf156fe72a4840d61349dc1af75bbe08635e9b4d4af26105c

  • SHA512

    c611b03d9b4e769524bdf1ec88228742d1390e5a792aa556d8d18d66a36117f3076b8d1e8ba0b95cc1ba3be875f82679c09197131c997c07641254b538593250

  • SSDEEP

    12288:8Iny5DYT5IRN4Pcaih3MBDwXyDFjc1oFB51tln1:aUT5i63WSDAyDyqB9h

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\1db741ad71fd78dbf156fe72a4840d61349dc1af75bbe08635e9b4d4af26105c.exe
    "C:\Users\Admin\AppData\Local\Temp\1db741ad71fd78dbf156fe72a4840d61349dc1af75bbe08635e9b4d4af26105c.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:3740
    • C:\Windows\SysWOW64\net.exe
      net stop nethttpservice
      2⤵
      • Suspicious use of WriteProcessMemory
      PID:2764
      • C:\Windows\SysWOW64\net1.exe
        C:\Windows\system32\net1 stop nethttpservice
        3⤵
          PID:5020
      • C:\Windows\SysWOW64\net.exe
        net stop serviceupdater
        2⤵
        • Suspicious use of WriteProcessMemory
        PID:3180
        • C:\Windows\SysWOW64\net1.exe
          C:\Windows\system32\net1 stop serviceupdater
          3⤵
            PID:5016
        • C:\Windows\SysWOW64\installd.exe
          "C:\Windows\system32\installd.exe" nethfdrv
          2⤵
          • Executes dropped EXE
          • Loads dropped DLL
          PID:5032
        • C:\Windows\SysWOW64\nethtsrv.exe
          "C:\Windows\system32\nethtsrv.exe" -nfdi
          2⤵
          • Executes dropped EXE
          • Loads dropped DLL
          PID:2288
        • C:\Windows\SysWOW64\netupdsrv.exe
          "C:\Windows\system32\netupdsrv.exe" -nfdi
          2⤵
          • Executes dropped EXE
          PID:4420
        • C:\Windows\SysWOW64\net.exe
          net start nethttpservice
          2⤵
          • Suspicious use of WriteProcessMemory
          PID:4408
          • C:\Windows\SysWOW64\net1.exe
            C:\Windows\system32\net1 start nethttpservice
            3⤵
              PID:3788
          • C:\Windows\SysWOW64\net.exe
            net start serviceupdater
            2⤵
            • Suspicious use of WriteProcessMemory
            PID:4324
            • C:\Windows\SysWOW64\net1.exe
              C:\Windows\system32\net1 start serviceupdater
              3⤵
                PID:2180
          • 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:3892
          • C:\Windows\SysWOW64\netupdsrv.exe
            C:\Windows\SysWOW64\netupdsrv.exe
            1⤵
            • Executes dropped EXE
            PID:4268

          Network

          MITRE ATT&CK Enterprise v6

          Replay Monitor

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          Downloads

          • C:\Users\Admin\AppData\Local\Temp\nsmDA88.tmp\System.dll

            Filesize

            11KB

            MD5

            c17103ae9072a06da581dec998343fc1

            SHA1

            b72148c6bdfaada8b8c3f950e610ee7cf1da1f8d

            SHA256

            dc58d8ad81cacb0c1ed72e33bff8f23ea40b5252b5bb55d393a0903e6819ae2f

            SHA512

            d32a71aaef18e993f28096d536e41c4d016850721b31171513ce28bbd805a54fd290b7c3e9d935f72e676a1acfb4f0dcc89d95040a0dd29f2b6975855c18986f

          • C:\Users\Admin\AppData\Local\Temp\nsmDA88.tmp\nsExec.dll

            Filesize

            6KB

            MD5

            acc2b699edfea5bf5aae45aba3a41e96

            SHA1

            d2accf4d494e43ceb2cff69abe4dd17147d29cc2

            SHA256

            168a974eaa3f588d759db3f47c1a9fdc3494ba1fa1a73a84e5e3b2a4d58abd7e

            SHA512

            e29ea10ada98c71a18273b04f44f385b120d4e8473e441ce5748cfa44a23648814f2656f429b85440157988c88de776c6ac008dc38bf09cbb746c230a46c69fe

          • C:\Users\Admin\AppData\Local\Temp\nsmDA88.tmp\nsExec.dll

            Filesize

            6KB

            MD5

            acc2b699edfea5bf5aae45aba3a41e96

            SHA1

            d2accf4d494e43ceb2cff69abe4dd17147d29cc2

            SHA256

            168a974eaa3f588d759db3f47c1a9fdc3494ba1fa1a73a84e5e3b2a4d58abd7e

            SHA512

            e29ea10ada98c71a18273b04f44f385b120d4e8473e441ce5748cfa44a23648814f2656f429b85440157988c88de776c6ac008dc38bf09cbb746c230a46c69fe

          • C:\Users\Admin\AppData\Local\Temp\nsmDA88.tmp\nsExec.dll

            Filesize

            6KB

            MD5

            acc2b699edfea5bf5aae45aba3a41e96

            SHA1

            d2accf4d494e43ceb2cff69abe4dd17147d29cc2

            SHA256

            168a974eaa3f588d759db3f47c1a9fdc3494ba1fa1a73a84e5e3b2a4d58abd7e

            SHA512

            e29ea10ada98c71a18273b04f44f385b120d4e8473e441ce5748cfa44a23648814f2656f429b85440157988c88de776c6ac008dc38bf09cbb746c230a46c69fe

          • C:\Users\Admin\AppData\Local\Temp\nsmDA88.tmp\nsExec.dll

            Filesize

            6KB

            MD5

            acc2b699edfea5bf5aae45aba3a41e96

            SHA1

            d2accf4d494e43ceb2cff69abe4dd17147d29cc2

            SHA256

            168a974eaa3f588d759db3f47c1a9fdc3494ba1fa1a73a84e5e3b2a4d58abd7e

            SHA512

            e29ea10ada98c71a18273b04f44f385b120d4e8473e441ce5748cfa44a23648814f2656f429b85440157988c88de776c6ac008dc38bf09cbb746c230a46c69fe

          • C:\Users\Admin\AppData\Local\Temp\nsmDA88.tmp\nsExec.dll

            Filesize

            6KB

            MD5

            acc2b699edfea5bf5aae45aba3a41e96

            SHA1

            d2accf4d494e43ceb2cff69abe4dd17147d29cc2

            SHA256

            168a974eaa3f588d759db3f47c1a9fdc3494ba1fa1a73a84e5e3b2a4d58abd7e

            SHA512

            e29ea10ada98c71a18273b04f44f385b120d4e8473e441ce5748cfa44a23648814f2656f429b85440157988c88de776c6ac008dc38bf09cbb746c230a46c69fe

          • C:\Users\Admin\AppData\Local\Temp\nsmDA88.tmp\nsExec.dll

            Filesize

            6KB

            MD5

            acc2b699edfea5bf5aae45aba3a41e96

            SHA1

            d2accf4d494e43ceb2cff69abe4dd17147d29cc2

            SHA256

            168a974eaa3f588d759db3f47c1a9fdc3494ba1fa1a73a84e5e3b2a4d58abd7e

            SHA512

            e29ea10ada98c71a18273b04f44f385b120d4e8473e441ce5748cfa44a23648814f2656f429b85440157988c88de776c6ac008dc38bf09cbb746c230a46c69fe

          • C:\Users\Admin\AppData\Local\Temp\nsmDA88.tmp\nsExec.dll

            Filesize

            6KB

            MD5

            acc2b699edfea5bf5aae45aba3a41e96

            SHA1

            d2accf4d494e43ceb2cff69abe4dd17147d29cc2

            SHA256

            168a974eaa3f588d759db3f47c1a9fdc3494ba1fa1a73a84e5e3b2a4d58abd7e

            SHA512

            e29ea10ada98c71a18273b04f44f385b120d4e8473e441ce5748cfa44a23648814f2656f429b85440157988c88de776c6ac008dc38bf09cbb746c230a46c69fe

          • C:\Users\Admin\AppData\Local\Temp\nsmDA88.tmp\nsExec.dll

            Filesize

            6KB

            MD5

            acc2b699edfea5bf5aae45aba3a41e96

            SHA1

            d2accf4d494e43ceb2cff69abe4dd17147d29cc2

            SHA256

            168a974eaa3f588d759db3f47c1a9fdc3494ba1fa1a73a84e5e3b2a4d58abd7e

            SHA512

            e29ea10ada98c71a18273b04f44f385b120d4e8473e441ce5748cfa44a23648814f2656f429b85440157988c88de776c6ac008dc38bf09cbb746c230a46c69fe

          • C:\Windows\SysWOW64\hfnapi.dll

            Filesize

            106KB

            MD5

            7d06af3c599b5c1132f28427ad68bf03

            SHA1

            a973059074318f530f3f3f917aeb7227411673c2

            SHA256

            5daceadaea8d752ca0a8818f8fc33dfe26b851174435c161bdcfbad49560cff3

            SHA512

            8a6d56a27f0174d924ffb04f1c7386786df97ef77ed8e58c6eaec8d40e0d9fa2dd55abe98b18e59874b697503c634d5cfdbf49a13be941957445577aa493908f

          • C:\Windows\SysWOW64\hfnapi.dll

            Filesize

            106KB

            MD5

            7d06af3c599b5c1132f28427ad68bf03

            SHA1

            a973059074318f530f3f3f917aeb7227411673c2

            SHA256

            5daceadaea8d752ca0a8818f8fc33dfe26b851174435c161bdcfbad49560cff3

            SHA512

            8a6d56a27f0174d924ffb04f1c7386786df97ef77ed8e58c6eaec8d40e0d9fa2dd55abe98b18e59874b697503c634d5cfdbf49a13be941957445577aa493908f

          • C:\Windows\SysWOW64\hfnapi.dll

            Filesize

            106KB

            MD5

            7d06af3c599b5c1132f28427ad68bf03

            SHA1

            a973059074318f530f3f3f917aeb7227411673c2

            SHA256

            5daceadaea8d752ca0a8818f8fc33dfe26b851174435c161bdcfbad49560cff3

            SHA512

            8a6d56a27f0174d924ffb04f1c7386786df97ef77ed8e58c6eaec8d40e0d9fa2dd55abe98b18e59874b697503c634d5cfdbf49a13be941957445577aa493908f

          • C:\Windows\SysWOW64\hfnapi.dll

            Filesize

            106KB

            MD5

            7d06af3c599b5c1132f28427ad68bf03

            SHA1

            a973059074318f530f3f3f917aeb7227411673c2

            SHA256

            5daceadaea8d752ca0a8818f8fc33dfe26b851174435c161bdcfbad49560cff3

            SHA512

            8a6d56a27f0174d924ffb04f1c7386786df97ef77ed8e58c6eaec8d40e0d9fa2dd55abe98b18e59874b697503c634d5cfdbf49a13be941957445577aa493908f

          • C:\Windows\SysWOW64\hfpapi.dll

            Filesize

            241KB

            MD5

            364828dc85793cb6039270983af459e6

            SHA1

            a6d6a363dfcb88cc8383c4e42858c3a6de993553

            SHA256

            e94244f5706ded1f3c62613de39be664be3429aafa5c5c1358fefc9fced0bf7c

            SHA512

            4d622208cb007fb27835495aad5e0e79942ff26a29891f08b748bdffa89ce741259ecae6e7b3c634a461805b02f9ea47fca05705c2a4ffea4956b4da10321393

          • C:\Windows\SysWOW64\hfpapi.dll

            Filesize

            241KB

            MD5

            364828dc85793cb6039270983af459e6

            SHA1

            a6d6a363dfcb88cc8383c4e42858c3a6de993553

            SHA256

            e94244f5706ded1f3c62613de39be664be3429aafa5c5c1358fefc9fced0bf7c

            SHA512

            4d622208cb007fb27835495aad5e0e79942ff26a29891f08b748bdffa89ce741259ecae6e7b3c634a461805b02f9ea47fca05705c2a4ffea4956b4da10321393

          • C:\Windows\SysWOW64\hfpapi.dll

            Filesize

            241KB

            MD5

            364828dc85793cb6039270983af459e6

            SHA1

            a6d6a363dfcb88cc8383c4e42858c3a6de993553

            SHA256

            e94244f5706ded1f3c62613de39be664be3429aafa5c5c1358fefc9fced0bf7c

            SHA512

            4d622208cb007fb27835495aad5e0e79942ff26a29891f08b748bdffa89ce741259ecae6e7b3c634a461805b02f9ea47fca05705c2a4ffea4956b4da10321393

          • C:\Windows\SysWOW64\installd.exe

            Filesize

            108KB

            MD5

            146da669f1d99f041dca09e789cb4bc0

            SHA1

            24f36d29ffe6887ef2174bbcfa72dd4b72e50bcc

            SHA256

            fb24c203a27b6e125a1f942101b35c22fd65f44284f798f862834c9e91901657

            SHA512

            d2f48798a09963d0ec8cc722fad227abdde3f61b93fad9afab8165a19852c863ac15958fac01eb0f761e0797b96946c33e006bd63a38594c6ac57604a6f87b28

          • C:\Windows\SysWOW64\installd.exe

            Filesize

            108KB

            MD5

            146da669f1d99f041dca09e789cb4bc0

            SHA1

            24f36d29ffe6887ef2174bbcfa72dd4b72e50bcc

            SHA256

            fb24c203a27b6e125a1f942101b35c22fd65f44284f798f862834c9e91901657

            SHA512

            d2f48798a09963d0ec8cc722fad227abdde3f61b93fad9afab8165a19852c863ac15958fac01eb0f761e0797b96946c33e006bd63a38594c6ac57604a6f87b28

          • C:\Windows\SysWOW64\nethtsrv.exe

            Filesize

            176KB

            MD5

            9eabe077bd5b6ad832d6b7bf48010a18

            SHA1

            a413dc86b4cf85e98c31aecd4300023f7e79426c

            SHA256

            2655664fa4f9a55b029433953cdc593a74fdbfff2e87bc3438c9d1015a6a7e32

            SHA512

            1d819dc63116c08a4d259295774f0424d415920c6dbb61e1fd4c2b52e148588145a884e7a0e7e659eac3d3127033ca81d17a6abf026d7bf8d47ef090389f5962

          • C:\Windows\SysWOW64\nethtsrv.exe

            Filesize

            176KB

            MD5

            9eabe077bd5b6ad832d6b7bf48010a18

            SHA1

            a413dc86b4cf85e98c31aecd4300023f7e79426c

            SHA256

            2655664fa4f9a55b029433953cdc593a74fdbfff2e87bc3438c9d1015a6a7e32

            SHA512

            1d819dc63116c08a4d259295774f0424d415920c6dbb61e1fd4c2b52e148588145a884e7a0e7e659eac3d3127033ca81d17a6abf026d7bf8d47ef090389f5962

          • C:\Windows\SysWOW64\nethtsrv.exe

            Filesize

            176KB

            MD5

            9eabe077bd5b6ad832d6b7bf48010a18

            SHA1

            a413dc86b4cf85e98c31aecd4300023f7e79426c

            SHA256

            2655664fa4f9a55b029433953cdc593a74fdbfff2e87bc3438c9d1015a6a7e32

            SHA512

            1d819dc63116c08a4d259295774f0424d415920c6dbb61e1fd4c2b52e148588145a884e7a0e7e659eac3d3127033ca81d17a6abf026d7bf8d47ef090389f5962

          • C:\Windows\SysWOW64\netupdsrv.exe

            Filesize

            158KB

            MD5

            ad1a9ade11fda70ccff31fcdec0c6ad0

            SHA1

            fb0f93fe7e266af348a930ddc68d47e774478f82

            SHA256

            c21cd869a2153fdbf99b97b3e7cdb9facb43e994cae7786161ca49063eb7390e

            SHA512

            ef5f2c3115d3069959b408d0050188e7ce3e67eaa4b3808ab4cb5461db58e40b23923a73abea3e85aa68ef79a11e7dac5b1f59355bb5ee79e27334b1d567de29

          • C:\Windows\SysWOW64\netupdsrv.exe

            Filesize

            158KB

            MD5

            ad1a9ade11fda70ccff31fcdec0c6ad0

            SHA1

            fb0f93fe7e266af348a930ddc68d47e774478f82

            SHA256

            c21cd869a2153fdbf99b97b3e7cdb9facb43e994cae7786161ca49063eb7390e

            SHA512

            ef5f2c3115d3069959b408d0050188e7ce3e67eaa4b3808ab4cb5461db58e40b23923a73abea3e85aa68ef79a11e7dac5b1f59355bb5ee79e27334b1d567de29

          • C:\Windows\SysWOW64\netupdsrv.exe

            Filesize

            158KB

            MD5

            ad1a9ade11fda70ccff31fcdec0c6ad0

            SHA1

            fb0f93fe7e266af348a930ddc68d47e774478f82

            SHA256

            c21cd869a2153fdbf99b97b3e7cdb9facb43e994cae7786161ca49063eb7390e

            SHA512

            ef5f2c3115d3069959b408d0050188e7ce3e67eaa4b3808ab4cb5461db58e40b23923a73abea3e85aa68ef79a11e7dac5b1f59355bb5ee79e27334b1d567de29

          • memory/2180-166-0x0000000000000000-mapping.dmp

          • memory/2288-147-0x0000000000000000-mapping.dmp

          • memory/2764-136-0x0000000000000000-mapping.dmp

          • memory/3180-140-0x0000000000000000-mapping.dmp

          • memory/3740-168-0x0000000000360000-0x00000000007BE000-memory.dmp

            Filesize

            4.4MB

          • memory/3740-132-0x0000000000360000-0x00000000007BE000-memory.dmp

            Filesize

            4.4MB

          • memory/3788-159-0x0000000000000000-mapping.dmp

          • memory/4324-165-0x0000000000000000-mapping.dmp

          • memory/4408-158-0x0000000000000000-mapping.dmp

          • memory/4420-153-0x0000000000000000-mapping.dmp

          • memory/5016-141-0x0000000000000000-mapping.dmp

          • memory/5020-137-0x0000000000000000-mapping.dmp

          • memory/5032-142-0x0000000000000000-mapping.dmp