Analysis

  • max time kernel
    135s
  • max time network
    162s
  • 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 10:55

General

  • Target

    72d7dd926a4d6a9bbfec8cd99bff7df92b7b569325ffc2f5c078f4ecdd179ecf.exe

  • Size

    446KB

  • MD5

    10632a2b3c6f9a14e92236944f5362f1

  • SHA1

    66f4bdaf1f76d6183847ef0d2c2fc034c8d16719

  • SHA256

    72d7dd926a4d6a9bbfec8cd99bff7df92b7b569325ffc2f5c078f4ecdd179ecf

  • SHA512

    4102778c8c42631ad6b9a5f8abfbe93762290de84443ea9f4678abb2b4e24498713956464cfb742737591a02d2040f708122dd1c483286897615930bf54503da

  • SSDEEP

    12288:SaKgdDgF+Jr5jjoeWo23LFTeN7IpPXnyVru8:SaK6gKrfWX7FTeN7Ilypu8

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\72d7dd926a4d6a9bbfec8cd99bff7df92b7b569325ffc2f5c078f4ecdd179ecf.exe
    "C:\Users\Admin\AppData\Local\Temp\72d7dd926a4d6a9bbfec8cd99bff7df92b7b569325ffc2f5c078f4ecdd179ecf.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:1268
    • C:\Windows\SysWOW64\net.exe
      net stop nethttpservice
      2⤵
      • Suspicious use of WriteProcessMemory
      PID:4148
      • C:\Windows\SysWOW64\net1.exe
        C:\Windows\system32\net1 stop nethttpservice
        3⤵
          PID:1220
      • C:\Windows\SysWOW64\net.exe
        net stop serviceupdater
        2⤵
        • Suspicious use of WriteProcessMemory
        PID:1124
        • C:\Windows\SysWOW64\net1.exe
          C:\Windows\system32\net1 stop serviceupdater
          3⤵
            PID:3688
        • C:\Windows\SysWOW64\installd.exe
          "C:\Windows\system32\installd.exe" nethfdrv
          2⤵
          • Executes dropped EXE
          • Loads dropped DLL
          PID:3220
        • C:\Windows\SysWOW64\nethtsrv.exe
          "C:\Windows\system32\nethtsrv.exe" -nfdi
          2⤵
          • Executes dropped EXE
          • Loads dropped DLL
          PID:2468
        • C:\Windows\SysWOW64\netupdsrv.exe
          "C:\Windows\system32\netupdsrv.exe" -nfdi
          2⤵
          • Executes dropped EXE
          PID:4780
        • C:\Windows\SysWOW64\net.exe
          net start nethttpservice
          2⤵
          • Suspicious use of WriteProcessMemory
          PID:3672
          • C:\Windows\SysWOW64\net1.exe
            C:\Windows\system32\net1 start nethttpservice
            3⤵
              PID:1288
          • C:\Windows\SysWOW64\net.exe
            net start serviceupdater
            2⤵
            • Suspicious use of WriteProcessMemory
            PID:916
            • C:\Windows\SysWOW64\net1.exe
              C:\Windows\system32\net1 start serviceupdater
              3⤵
                PID:2932
          • 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:3088
          • C:\Windows\SysWOW64\netupdsrv.exe
            C:\Windows\SysWOW64\netupdsrv.exe
            1⤵
            • Executes dropped EXE
            PID:2032

          Network

          MITRE ATT&CK Enterprise v6

          Replay Monitor

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          Downloads

          • C:\Users\Admin\AppData\Local\Temp\nsmD8A4.tmp\System.dll

            Filesize

            11KB

            MD5

            c17103ae9072a06da581dec998343fc1

            SHA1

            b72148c6bdfaada8b8c3f950e610ee7cf1da1f8d

            SHA256

            dc58d8ad81cacb0c1ed72e33bff8f23ea40b5252b5bb55d393a0903e6819ae2f

            SHA512

            d32a71aaef18e993f28096d536e41c4d016850721b31171513ce28bbd805a54fd290b7c3e9d935f72e676a1acfb4f0dcc89d95040a0dd29f2b6975855c18986f

          • C:\Users\Admin\AppData\Local\Temp\nsmD8A4.tmp\nsExec.dll

            Filesize

            6KB

            MD5

            acc2b699edfea5bf5aae45aba3a41e96

            SHA1

            d2accf4d494e43ceb2cff69abe4dd17147d29cc2

            SHA256

            168a974eaa3f588d759db3f47c1a9fdc3494ba1fa1a73a84e5e3b2a4d58abd7e

            SHA512

            e29ea10ada98c71a18273b04f44f385b120d4e8473e441ce5748cfa44a23648814f2656f429b85440157988c88de776c6ac008dc38bf09cbb746c230a46c69fe

          • C:\Users\Admin\AppData\Local\Temp\nsmD8A4.tmp\nsExec.dll

            Filesize

            6KB

            MD5

            acc2b699edfea5bf5aae45aba3a41e96

            SHA1

            d2accf4d494e43ceb2cff69abe4dd17147d29cc2

            SHA256

            168a974eaa3f588d759db3f47c1a9fdc3494ba1fa1a73a84e5e3b2a4d58abd7e

            SHA512

            e29ea10ada98c71a18273b04f44f385b120d4e8473e441ce5748cfa44a23648814f2656f429b85440157988c88de776c6ac008dc38bf09cbb746c230a46c69fe

          • C:\Users\Admin\AppData\Local\Temp\nsmD8A4.tmp\nsExec.dll

            Filesize

            6KB

            MD5

            acc2b699edfea5bf5aae45aba3a41e96

            SHA1

            d2accf4d494e43ceb2cff69abe4dd17147d29cc2

            SHA256

            168a974eaa3f588d759db3f47c1a9fdc3494ba1fa1a73a84e5e3b2a4d58abd7e

            SHA512

            e29ea10ada98c71a18273b04f44f385b120d4e8473e441ce5748cfa44a23648814f2656f429b85440157988c88de776c6ac008dc38bf09cbb746c230a46c69fe

          • C:\Users\Admin\AppData\Local\Temp\nsmD8A4.tmp\nsExec.dll

            Filesize

            6KB

            MD5

            acc2b699edfea5bf5aae45aba3a41e96

            SHA1

            d2accf4d494e43ceb2cff69abe4dd17147d29cc2

            SHA256

            168a974eaa3f588d759db3f47c1a9fdc3494ba1fa1a73a84e5e3b2a4d58abd7e

            SHA512

            e29ea10ada98c71a18273b04f44f385b120d4e8473e441ce5748cfa44a23648814f2656f429b85440157988c88de776c6ac008dc38bf09cbb746c230a46c69fe

          • C:\Users\Admin\AppData\Local\Temp\nsmD8A4.tmp\nsExec.dll

            Filesize

            6KB

            MD5

            acc2b699edfea5bf5aae45aba3a41e96

            SHA1

            d2accf4d494e43ceb2cff69abe4dd17147d29cc2

            SHA256

            168a974eaa3f588d759db3f47c1a9fdc3494ba1fa1a73a84e5e3b2a4d58abd7e

            SHA512

            e29ea10ada98c71a18273b04f44f385b120d4e8473e441ce5748cfa44a23648814f2656f429b85440157988c88de776c6ac008dc38bf09cbb746c230a46c69fe

          • C:\Users\Admin\AppData\Local\Temp\nsmD8A4.tmp\nsExec.dll

            Filesize

            6KB

            MD5

            acc2b699edfea5bf5aae45aba3a41e96

            SHA1

            d2accf4d494e43ceb2cff69abe4dd17147d29cc2

            SHA256

            168a974eaa3f588d759db3f47c1a9fdc3494ba1fa1a73a84e5e3b2a4d58abd7e

            SHA512

            e29ea10ada98c71a18273b04f44f385b120d4e8473e441ce5748cfa44a23648814f2656f429b85440157988c88de776c6ac008dc38bf09cbb746c230a46c69fe

          • C:\Users\Admin\AppData\Local\Temp\nsmD8A4.tmp\nsExec.dll

            Filesize

            6KB

            MD5

            acc2b699edfea5bf5aae45aba3a41e96

            SHA1

            d2accf4d494e43ceb2cff69abe4dd17147d29cc2

            SHA256

            168a974eaa3f588d759db3f47c1a9fdc3494ba1fa1a73a84e5e3b2a4d58abd7e

            SHA512

            e29ea10ada98c71a18273b04f44f385b120d4e8473e441ce5748cfa44a23648814f2656f429b85440157988c88de776c6ac008dc38bf09cbb746c230a46c69fe

          • C:\Users\Admin\AppData\Local\Temp\nsmD8A4.tmp\nsExec.dll

            Filesize

            6KB

            MD5

            acc2b699edfea5bf5aae45aba3a41e96

            SHA1

            d2accf4d494e43ceb2cff69abe4dd17147d29cc2

            SHA256

            168a974eaa3f588d759db3f47c1a9fdc3494ba1fa1a73a84e5e3b2a4d58abd7e

            SHA512

            e29ea10ada98c71a18273b04f44f385b120d4e8473e441ce5748cfa44a23648814f2656f429b85440157988c88de776c6ac008dc38bf09cbb746c230a46c69fe

          • C:\Windows\SysWOW64\hfnapi.dll

            Filesize

            106KB

            MD5

            e02dec46f7515efe070e809d348e090a

            SHA1

            5fcefb79f05bbe1f08a711eedafd87f9ec2e8a41

            SHA256

            b1de767deaca6ffbe8bfbec0a4983a5600d46166ac0bc3f336fa359fc96c24e5

            SHA512

            732e2d1845aa85a7fd431b441dd874db941e2c79db11e4b23fc4d04b3e193449511872a43c307a05566bdf882068c334c350e1f0b460f9b98da866507910e324

          • C:\Windows\SysWOW64\hfnapi.dll

            Filesize

            106KB

            MD5

            e02dec46f7515efe070e809d348e090a

            SHA1

            5fcefb79f05bbe1f08a711eedafd87f9ec2e8a41

            SHA256

            b1de767deaca6ffbe8bfbec0a4983a5600d46166ac0bc3f336fa359fc96c24e5

            SHA512

            732e2d1845aa85a7fd431b441dd874db941e2c79db11e4b23fc4d04b3e193449511872a43c307a05566bdf882068c334c350e1f0b460f9b98da866507910e324

          • C:\Windows\SysWOW64\hfnapi.dll

            Filesize

            106KB

            MD5

            e02dec46f7515efe070e809d348e090a

            SHA1

            5fcefb79f05bbe1f08a711eedafd87f9ec2e8a41

            SHA256

            b1de767deaca6ffbe8bfbec0a4983a5600d46166ac0bc3f336fa359fc96c24e5

            SHA512

            732e2d1845aa85a7fd431b441dd874db941e2c79db11e4b23fc4d04b3e193449511872a43c307a05566bdf882068c334c350e1f0b460f9b98da866507910e324

          • C:\Windows\SysWOW64\hfnapi.dll

            Filesize

            106KB

            MD5

            e02dec46f7515efe070e809d348e090a

            SHA1

            5fcefb79f05bbe1f08a711eedafd87f9ec2e8a41

            SHA256

            b1de767deaca6ffbe8bfbec0a4983a5600d46166ac0bc3f336fa359fc96c24e5

            SHA512

            732e2d1845aa85a7fd431b441dd874db941e2c79db11e4b23fc4d04b3e193449511872a43c307a05566bdf882068c334c350e1f0b460f9b98da866507910e324

          • C:\Windows\SysWOW64\hfpapi.dll

            Filesize

            241KB

            MD5

            049184b533c7305fb445d5aab1d7b1f4

            SHA1

            df13b5d4abf7508d1b268c65965d0cb1c03a02f2

            SHA256

            99a9fcceb56ea1523a4d7476fe6d428b4892a720645ceef08a71509ec3246fb9

            SHA512

            f890a4ff5eaf50968a64af467558f185fca71b07c238679f293d730b69714d2cad10e4689d3a218f7042f0c3338c8742208c6bcf29caa72f8cb290deb0eab2e3

          • C:\Windows\SysWOW64\hfpapi.dll

            Filesize

            241KB

            MD5

            049184b533c7305fb445d5aab1d7b1f4

            SHA1

            df13b5d4abf7508d1b268c65965d0cb1c03a02f2

            SHA256

            99a9fcceb56ea1523a4d7476fe6d428b4892a720645ceef08a71509ec3246fb9

            SHA512

            f890a4ff5eaf50968a64af467558f185fca71b07c238679f293d730b69714d2cad10e4689d3a218f7042f0c3338c8742208c6bcf29caa72f8cb290deb0eab2e3

          • C:\Windows\SysWOW64\hfpapi.dll

            Filesize

            241KB

            MD5

            049184b533c7305fb445d5aab1d7b1f4

            SHA1

            df13b5d4abf7508d1b268c65965d0cb1c03a02f2

            SHA256

            99a9fcceb56ea1523a4d7476fe6d428b4892a720645ceef08a71509ec3246fb9

            SHA512

            f890a4ff5eaf50968a64af467558f185fca71b07c238679f293d730b69714d2cad10e4689d3a218f7042f0c3338c8742208c6bcf29caa72f8cb290deb0eab2e3

          • C:\Windows\SysWOW64\installd.exe

            Filesize

            108KB

            MD5

            ffac693ed086d23dbf0d6ce27a51edd6

            SHA1

            db811491babab8c96d5a3bf0fa915972635c08bf

            SHA256

            d966ecdab47de512f2d3dd70ecf1e89a2577aef1ade30c7a97a334573c4492b3

            SHA512

            c622df1a26c99341a71abc962bd6d3d643b63a49d8c03df6f9a482cc8c4cbde1c98ab20d1fa80c9fce40558391a9f1c22d84ef941b5042125fc3927395b796c5

          • C:\Windows\SysWOW64\installd.exe

            Filesize

            108KB

            MD5

            ffac693ed086d23dbf0d6ce27a51edd6

            SHA1

            db811491babab8c96d5a3bf0fa915972635c08bf

            SHA256

            d966ecdab47de512f2d3dd70ecf1e89a2577aef1ade30c7a97a334573c4492b3

            SHA512

            c622df1a26c99341a71abc962bd6d3d643b63a49d8c03df6f9a482cc8c4cbde1c98ab20d1fa80c9fce40558391a9f1c22d84ef941b5042125fc3927395b796c5

          • C:\Windows\SysWOW64\nethtsrv.exe

            Filesize

            176KB

            MD5

            7f1bfb587bf3ca7de6ce2f8b2e68f4c2

            SHA1

            3e6ce1aaf417e2c9e6634e51dfc998fb5b85152a

            SHA256

            a62f4897882bc1565db82d233f00a51273bd0628887f8e4ccae8b2d013df5730

            SHA512

            1b9db40721988b539c192eea02c1df242df96a6609158aa1d6ab41a6fe827928d602073e152d602cc8a8046de9449cd8cf5842f3dab61b7a1153a442f35e3994

          • C:\Windows\SysWOW64\nethtsrv.exe

            Filesize

            176KB

            MD5

            7f1bfb587bf3ca7de6ce2f8b2e68f4c2

            SHA1

            3e6ce1aaf417e2c9e6634e51dfc998fb5b85152a

            SHA256

            a62f4897882bc1565db82d233f00a51273bd0628887f8e4ccae8b2d013df5730

            SHA512

            1b9db40721988b539c192eea02c1df242df96a6609158aa1d6ab41a6fe827928d602073e152d602cc8a8046de9449cd8cf5842f3dab61b7a1153a442f35e3994

          • C:\Windows\SysWOW64\nethtsrv.exe

            Filesize

            176KB

            MD5

            7f1bfb587bf3ca7de6ce2f8b2e68f4c2

            SHA1

            3e6ce1aaf417e2c9e6634e51dfc998fb5b85152a

            SHA256

            a62f4897882bc1565db82d233f00a51273bd0628887f8e4ccae8b2d013df5730

            SHA512

            1b9db40721988b539c192eea02c1df242df96a6609158aa1d6ab41a6fe827928d602073e152d602cc8a8046de9449cd8cf5842f3dab61b7a1153a442f35e3994

          • C:\Windows\SysWOW64\netupdsrv.exe

            Filesize

            158KB

            MD5

            6617a90e57943825f98370114c318c0f

            SHA1

            cd8e7e8687574dee3c8a2519b12a92852f6802ee

            SHA256

            825e6d46a98eec463fc91de2659abe464390d249f8a5b8127347f6ffab7cbe9a

            SHA512

            59a5f391962574c83edd288987456b8e482c9316ed165ad4306388c826f6e23922358b3231515d0a03ff2ae6a832bb71a21a872ced912842f28a95c7cd08773a

          • C:\Windows\SysWOW64\netupdsrv.exe

            Filesize

            158KB

            MD5

            6617a90e57943825f98370114c318c0f

            SHA1

            cd8e7e8687574dee3c8a2519b12a92852f6802ee

            SHA256

            825e6d46a98eec463fc91de2659abe464390d249f8a5b8127347f6ffab7cbe9a

            SHA512

            59a5f391962574c83edd288987456b8e482c9316ed165ad4306388c826f6e23922358b3231515d0a03ff2ae6a832bb71a21a872ced912842f28a95c7cd08773a

          • C:\Windows\SysWOW64\netupdsrv.exe

            Filesize

            158KB

            MD5

            6617a90e57943825f98370114c318c0f

            SHA1

            cd8e7e8687574dee3c8a2519b12a92852f6802ee

            SHA256

            825e6d46a98eec463fc91de2659abe464390d249f8a5b8127347f6ffab7cbe9a

            SHA512

            59a5f391962574c83edd288987456b8e482c9316ed165ad4306388c826f6e23922358b3231515d0a03ff2ae6a832bb71a21a872ced912842f28a95c7cd08773a

          • memory/916-164-0x0000000000000000-mapping.dmp

          • memory/1124-139-0x0000000000000000-mapping.dmp

          • memory/1220-136-0x0000000000000000-mapping.dmp

          • memory/1288-158-0x0000000000000000-mapping.dmp

          • memory/2468-146-0x0000000000000000-mapping.dmp

          • memory/2932-165-0x0000000000000000-mapping.dmp

          • memory/3220-141-0x0000000000000000-mapping.dmp

          • memory/3672-157-0x0000000000000000-mapping.dmp

          • memory/3688-140-0x0000000000000000-mapping.dmp

          • memory/4148-135-0x0000000000000000-mapping.dmp

          • memory/4780-152-0x0000000000000000-mapping.dmp