Analysis

  • max time kernel
    153s
  • max time network
    157s
  • 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 10:27

General

  • Target

    47e55173bbecd361b067cb368ef64ea05802b6cacbbd329fb7ad1d58852588b9.exe

  • Size

    601KB

  • MD5

    2a6e9759525a3c6a571cb4fdcd417ed3

  • SHA1

    7e7d50a73187e6ac756ace0f1d69a942be2cabdc

  • SHA256

    47e55173bbecd361b067cb368ef64ea05802b6cacbbd329fb7ad1d58852588b9

  • SHA512

    2e9cf708ad97a536503fe2fa3a76db7b9dcfe72581c276f6c51f42dd34acf079134df4c9ca50d87d706db9cd9716176f934dc70cbe96d0b9f015574250f958da

  • SSDEEP

    12288:TIny5DYTg3GkdFiIHplN4x6wZhxIxe6MlpAsCFk4+8e:7UTg3nriIHx4x6w1V8Fk4

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\47e55173bbecd361b067cb368ef64ea05802b6cacbbd329fb7ad1d58852588b9.exe
    "C:\Users\Admin\AppData\Local\Temp\47e55173bbecd361b067cb368ef64ea05802b6cacbbd329fb7ad1d58852588b9.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:4636
    • C:\Windows\SysWOW64\net.exe
      net stop nethttpservice
      2⤵
      • Suspicious use of WriteProcessMemory
      PID:1976
      • C:\Windows\SysWOW64\net1.exe
        C:\Windows\system32\net1 stop nethttpservice
        3⤵
          PID:2232
      • C:\Windows\SysWOW64\net.exe
        net stop serviceupdater
        2⤵
        • Suspicious use of WriteProcessMemory
        PID:4768
        • C:\Windows\SysWOW64\net1.exe
          C:\Windows\system32\net1 stop serviceupdater
          3⤵
            PID:4712
        • C:\Windows\SysWOW64\installd.exe
          "C:\Windows\system32\installd.exe" nethfdrv
          2⤵
          • Executes dropped EXE
          • Loads dropped DLL
          PID:3008
        • C:\Windows\SysWOW64\nethtsrv.exe
          "C:\Windows\system32\nethtsrv.exe" -nfdi
          2⤵
          • Executes dropped EXE
          • Loads dropped DLL
          PID:1008
        • C:\Windows\SysWOW64\netupdsrv.exe
          "C:\Windows\system32\netupdsrv.exe" -nfdi
          2⤵
          • Executes dropped EXE
          PID:2364
        • C:\Windows\SysWOW64\net.exe
          net start nethttpservice
          2⤵
          • Suspicious use of WriteProcessMemory
          PID:4088
          • C:\Windows\SysWOW64\net1.exe
            C:\Windows\system32\net1 start nethttpservice
            3⤵
              PID:1136
          • C:\Windows\SysWOW64\net.exe
            net start serviceupdater
            2⤵
            • Suspicious use of WriteProcessMemory
            PID:3580
            • C:\Windows\SysWOW64\net1.exe
              C:\Windows\system32\net1 start serviceupdater
              3⤵
                PID:2700
          • 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:2604
          • C:\Windows\SysWOW64\netupdsrv.exe
            C:\Windows\SysWOW64\netupdsrv.exe
            1⤵
            • Executes dropped EXE
            PID:2704

          Network

          MITRE ATT&CK Enterprise v6

          Replay Monitor

          Loading Replay Monitor...

          Downloads

          • C:\Users\Admin\AppData\Local\Temp\nsu6C8.tmp\System.dll

            Filesize

            11KB

            MD5

            c17103ae9072a06da581dec998343fc1

            SHA1

            b72148c6bdfaada8b8c3f950e610ee7cf1da1f8d

            SHA256

            dc58d8ad81cacb0c1ed72e33bff8f23ea40b5252b5bb55d393a0903e6819ae2f

            SHA512

            d32a71aaef18e993f28096d536e41c4d016850721b31171513ce28bbd805a54fd290b7c3e9d935f72e676a1acfb4f0dcc89d95040a0dd29f2b6975855c18986f

          • C:\Users\Admin\AppData\Local\Temp\nsu6C8.tmp\nsExec.dll

            Filesize

            6KB

            MD5

            acc2b699edfea5bf5aae45aba3a41e96

            SHA1

            d2accf4d494e43ceb2cff69abe4dd17147d29cc2

            SHA256

            168a974eaa3f588d759db3f47c1a9fdc3494ba1fa1a73a84e5e3b2a4d58abd7e

            SHA512

            e29ea10ada98c71a18273b04f44f385b120d4e8473e441ce5748cfa44a23648814f2656f429b85440157988c88de776c6ac008dc38bf09cbb746c230a46c69fe

          • C:\Users\Admin\AppData\Local\Temp\nsu6C8.tmp\nsExec.dll

            Filesize

            6KB

            MD5

            acc2b699edfea5bf5aae45aba3a41e96

            SHA1

            d2accf4d494e43ceb2cff69abe4dd17147d29cc2

            SHA256

            168a974eaa3f588d759db3f47c1a9fdc3494ba1fa1a73a84e5e3b2a4d58abd7e

            SHA512

            e29ea10ada98c71a18273b04f44f385b120d4e8473e441ce5748cfa44a23648814f2656f429b85440157988c88de776c6ac008dc38bf09cbb746c230a46c69fe

          • C:\Users\Admin\AppData\Local\Temp\nsu6C8.tmp\nsExec.dll

            Filesize

            6KB

            MD5

            acc2b699edfea5bf5aae45aba3a41e96

            SHA1

            d2accf4d494e43ceb2cff69abe4dd17147d29cc2

            SHA256

            168a974eaa3f588d759db3f47c1a9fdc3494ba1fa1a73a84e5e3b2a4d58abd7e

            SHA512

            e29ea10ada98c71a18273b04f44f385b120d4e8473e441ce5748cfa44a23648814f2656f429b85440157988c88de776c6ac008dc38bf09cbb746c230a46c69fe

          • C:\Users\Admin\AppData\Local\Temp\nsu6C8.tmp\nsExec.dll

            Filesize

            6KB

            MD5

            acc2b699edfea5bf5aae45aba3a41e96

            SHA1

            d2accf4d494e43ceb2cff69abe4dd17147d29cc2

            SHA256

            168a974eaa3f588d759db3f47c1a9fdc3494ba1fa1a73a84e5e3b2a4d58abd7e

            SHA512

            e29ea10ada98c71a18273b04f44f385b120d4e8473e441ce5748cfa44a23648814f2656f429b85440157988c88de776c6ac008dc38bf09cbb746c230a46c69fe

          • C:\Users\Admin\AppData\Local\Temp\nsu6C8.tmp\nsExec.dll

            Filesize

            6KB

            MD5

            acc2b699edfea5bf5aae45aba3a41e96

            SHA1

            d2accf4d494e43ceb2cff69abe4dd17147d29cc2

            SHA256

            168a974eaa3f588d759db3f47c1a9fdc3494ba1fa1a73a84e5e3b2a4d58abd7e

            SHA512

            e29ea10ada98c71a18273b04f44f385b120d4e8473e441ce5748cfa44a23648814f2656f429b85440157988c88de776c6ac008dc38bf09cbb746c230a46c69fe

          • C:\Users\Admin\AppData\Local\Temp\nsu6C8.tmp\nsExec.dll

            Filesize

            6KB

            MD5

            acc2b699edfea5bf5aae45aba3a41e96

            SHA1

            d2accf4d494e43ceb2cff69abe4dd17147d29cc2

            SHA256

            168a974eaa3f588d759db3f47c1a9fdc3494ba1fa1a73a84e5e3b2a4d58abd7e

            SHA512

            e29ea10ada98c71a18273b04f44f385b120d4e8473e441ce5748cfa44a23648814f2656f429b85440157988c88de776c6ac008dc38bf09cbb746c230a46c69fe

          • C:\Users\Admin\AppData\Local\Temp\nsu6C8.tmp\nsExec.dll

            Filesize

            6KB

            MD5

            acc2b699edfea5bf5aae45aba3a41e96

            SHA1

            d2accf4d494e43ceb2cff69abe4dd17147d29cc2

            SHA256

            168a974eaa3f588d759db3f47c1a9fdc3494ba1fa1a73a84e5e3b2a4d58abd7e

            SHA512

            e29ea10ada98c71a18273b04f44f385b120d4e8473e441ce5748cfa44a23648814f2656f429b85440157988c88de776c6ac008dc38bf09cbb746c230a46c69fe

          • C:\Users\Admin\AppData\Local\Temp\nsu6C8.tmp\nsExec.dll

            Filesize

            6KB

            MD5

            acc2b699edfea5bf5aae45aba3a41e96

            SHA1

            d2accf4d494e43ceb2cff69abe4dd17147d29cc2

            SHA256

            168a974eaa3f588d759db3f47c1a9fdc3494ba1fa1a73a84e5e3b2a4d58abd7e

            SHA512

            e29ea10ada98c71a18273b04f44f385b120d4e8473e441ce5748cfa44a23648814f2656f429b85440157988c88de776c6ac008dc38bf09cbb746c230a46c69fe

          • C:\Windows\SysWOW64\hfnapi.dll

            Filesize

            106KB

            MD5

            5ae875cd79e8e249b3cd7e3619785d7e

            SHA1

            62386b36b933ad080a752b33eda508ccc2a96299

            SHA256

            303e8829d45aa5637054fe489494188c186c5d7ba019dafefb4a2d26e67f75f5

            SHA512

            9e34e5a3db2bc74f9d70a3b097571ea16f6375e19ba4f04a9e6613a3f57f964acd2a92f0a219d75786820e12962340a232ef9da821d0b3e26647a59d565937a1

          • C:\Windows\SysWOW64\hfnapi.dll

            Filesize

            106KB

            MD5

            5ae875cd79e8e249b3cd7e3619785d7e

            SHA1

            62386b36b933ad080a752b33eda508ccc2a96299

            SHA256

            303e8829d45aa5637054fe489494188c186c5d7ba019dafefb4a2d26e67f75f5

            SHA512

            9e34e5a3db2bc74f9d70a3b097571ea16f6375e19ba4f04a9e6613a3f57f964acd2a92f0a219d75786820e12962340a232ef9da821d0b3e26647a59d565937a1

          • C:\Windows\SysWOW64\hfnapi.dll

            Filesize

            106KB

            MD5

            5ae875cd79e8e249b3cd7e3619785d7e

            SHA1

            62386b36b933ad080a752b33eda508ccc2a96299

            SHA256

            303e8829d45aa5637054fe489494188c186c5d7ba019dafefb4a2d26e67f75f5

            SHA512

            9e34e5a3db2bc74f9d70a3b097571ea16f6375e19ba4f04a9e6613a3f57f964acd2a92f0a219d75786820e12962340a232ef9da821d0b3e26647a59d565937a1

          • C:\Windows\SysWOW64\hfnapi.dll

            Filesize

            106KB

            MD5

            5ae875cd79e8e249b3cd7e3619785d7e

            SHA1

            62386b36b933ad080a752b33eda508ccc2a96299

            SHA256

            303e8829d45aa5637054fe489494188c186c5d7ba019dafefb4a2d26e67f75f5

            SHA512

            9e34e5a3db2bc74f9d70a3b097571ea16f6375e19ba4f04a9e6613a3f57f964acd2a92f0a219d75786820e12962340a232ef9da821d0b3e26647a59d565937a1

          • C:\Windows\SysWOW64\hfpapi.dll

            Filesize

            241KB

            MD5

            1f66ffb408e21add1252b799b1284ba6

            SHA1

            20d480aba460e060ba3919ef135b3c9cab83a677

            SHA256

            a7b175a0684d58655270c8801a331da4833f1bbf06f5db9d52fd5771f7a66b62

            SHA512

            abbecd22fca2a434e863ec2358d2b23d5285a8cb2669226e6ad62137eb7190445ea038af26c45f1ec825c31bf7ca9d2ce0e711fbafba60a910afc906137ddbcf

          • C:\Windows\SysWOW64\hfpapi.dll

            Filesize

            241KB

            MD5

            1f66ffb408e21add1252b799b1284ba6

            SHA1

            20d480aba460e060ba3919ef135b3c9cab83a677

            SHA256

            a7b175a0684d58655270c8801a331da4833f1bbf06f5db9d52fd5771f7a66b62

            SHA512

            abbecd22fca2a434e863ec2358d2b23d5285a8cb2669226e6ad62137eb7190445ea038af26c45f1ec825c31bf7ca9d2ce0e711fbafba60a910afc906137ddbcf

          • C:\Windows\SysWOW64\hfpapi.dll

            Filesize

            241KB

            MD5

            1f66ffb408e21add1252b799b1284ba6

            SHA1

            20d480aba460e060ba3919ef135b3c9cab83a677

            SHA256

            a7b175a0684d58655270c8801a331da4833f1bbf06f5db9d52fd5771f7a66b62

            SHA512

            abbecd22fca2a434e863ec2358d2b23d5285a8cb2669226e6ad62137eb7190445ea038af26c45f1ec825c31bf7ca9d2ce0e711fbafba60a910afc906137ddbcf

          • C:\Windows\SysWOW64\installd.exe

            Filesize

            108KB

            MD5

            3d3c52f8363fe840b32e81571887c54d

            SHA1

            9a52d82951998f594335d84bc5513a6d219913b4

            SHA256

            4fbfac90b01c3417e1f52de98ed6c850dbf8c9ac46b94af6a891c4c4b07a2c11

            SHA512

            078f49864cbf0e56ae4ff40cb14ef43f485c2b54e7b2776d7e80a3b417ada9d82f10faedfa4311e9a44917571eaa1fa69a56ddb1fdc0a561fe6606126c09da15

          • C:\Windows\SysWOW64\installd.exe

            Filesize

            108KB

            MD5

            3d3c52f8363fe840b32e81571887c54d

            SHA1

            9a52d82951998f594335d84bc5513a6d219913b4

            SHA256

            4fbfac90b01c3417e1f52de98ed6c850dbf8c9ac46b94af6a891c4c4b07a2c11

            SHA512

            078f49864cbf0e56ae4ff40cb14ef43f485c2b54e7b2776d7e80a3b417ada9d82f10faedfa4311e9a44917571eaa1fa69a56ddb1fdc0a561fe6606126c09da15

          • C:\Windows\SysWOW64\nethtsrv.exe

            Filesize

            176KB

            MD5

            f09bb375ff3377fd280867f5c793bcd0

            SHA1

            5227e8661b55463a44024e5d11b3826f51d3c998

            SHA256

            d567fdc2c6ec4c841fd83c5429cb0a872fb8d48d164d3a4185e8c61a4113e20a

            SHA512

            b2c62edc3e52453bbf87a3ca687c65abd9400fbcc639c0bcc79ac350f0c0424ecd2de060182809ad1171cc7b010de8cebebbfce373e1f3c6c04069f7549fe288

          • C:\Windows\SysWOW64\nethtsrv.exe

            Filesize

            176KB

            MD5

            f09bb375ff3377fd280867f5c793bcd0

            SHA1

            5227e8661b55463a44024e5d11b3826f51d3c998

            SHA256

            d567fdc2c6ec4c841fd83c5429cb0a872fb8d48d164d3a4185e8c61a4113e20a

            SHA512

            b2c62edc3e52453bbf87a3ca687c65abd9400fbcc639c0bcc79ac350f0c0424ecd2de060182809ad1171cc7b010de8cebebbfce373e1f3c6c04069f7549fe288

          • C:\Windows\SysWOW64\nethtsrv.exe

            Filesize

            176KB

            MD5

            f09bb375ff3377fd280867f5c793bcd0

            SHA1

            5227e8661b55463a44024e5d11b3826f51d3c998

            SHA256

            d567fdc2c6ec4c841fd83c5429cb0a872fb8d48d164d3a4185e8c61a4113e20a

            SHA512

            b2c62edc3e52453bbf87a3ca687c65abd9400fbcc639c0bcc79ac350f0c0424ecd2de060182809ad1171cc7b010de8cebebbfce373e1f3c6c04069f7549fe288

          • C:\Windows\SysWOW64\netupdsrv.exe

            Filesize

            158KB

            MD5

            347ae27edadc6eeb3d5ab7e0379b0604

            SHA1

            da39068ab1ff00404904e8915cfbc2660afabc0e

            SHA256

            461ba9b7b5668115c48a44e92e7f9c690703719f16faf86f112857bee614d319

            SHA512

            8a30b4e47fd50ed550ceabcb75fee5222fe6ac3d6a7b76f9912655747215ea3c733deb7092412020e6adbd50581a18233f8ddab0863c264059d7de319a47c5f4

          • C:\Windows\SysWOW64\netupdsrv.exe

            Filesize

            158KB

            MD5

            347ae27edadc6eeb3d5ab7e0379b0604

            SHA1

            da39068ab1ff00404904e8915cfbc2660afabc0e

            SHA256

            461ba9b7b5668115c48a44e92e7f9c690703719f16faf86f112857bee614d319

            SHA512

            8a30b4e47fd50ed550ceabcb75fee5222fe6ac3d6a7b76f9912655747215ea3c733deb7092412020e6adbd50581a18233f8ddab0863c264059d7de319a47c5f4

          • C:\Windows\SysWOW64\netupdsrv.exe

            Filesize

            158KB

            MD5

            347ae27edadc6eeb3d5ab7e0379b0604

            SHA1

            da39068ab1ff00404904e8915cfbc2660afabc0e

            SHA256

            461ba9b7b5668115c48a44e92e7f9c690703719f16faf86f112857bee614d319

            SHA512

            8a30b4e47fd50ed550ceabcb75fee5222fe6ac3d6a7b76f9912655747215ea3c733deb7092412020e6adbd50581a18233f8ddab0863c264059d7de319a47c5f4

          • memory/1008-147-0x0000000000000000-mapping.dmp

          • memory/1136-159-0x0000000000000000-mapping.dmp

          • memory/1976-135-0x0000000000000000-mapping.dmp

          • memory/2232-136-0x0000000000000000-mapping.dmp

          • memory/2364-153-0x0000000000000000-mapping.dmp

          • memory/2700-166-0x0000000000000000-mapping.dmp

          • memory/3008-142-0x0000000000000000-mapping.dmp

          • memory/3580-165-0x0000000000000000-mapping.dmp

          • memory/4088-158-0x0000000000000000-mapping.dmp

          • memory/4636-137-0x0000000000360000-0x00000000007BE000-memory.dmp

            Filesize

            4.4MB

          • memory/4636-168-0x0000000000360000-0x00000000007BE000-memory.dmp

            Filesize

            4.4MB

          • memory/4712-141-0x0000000000000000-mapping.dmp

          • memory/4768-140-0x0000000000000000-mapping.dmp