Analysis

  • max time kernel
    151s
  • max time network
    184s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20221111-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20221111-enlocale:en-usos:windows10-2004-x64system
  • submitted
    23-11-2022 10:23

General

  • Target

    71472fcc8b8900ec069b2ac1e4d68429b016306b4f2d8beb86cb9b3693fc1222.exe

  • Size

    598KB

  • MD5

    f131d2f944bff5d290a65d0d0e21c194

  • SHA1

    910777bd76cef9e234ebcb1d59d7abebe254c29b

  • SHA256

    71472fcc8b8900ec069b2ac1e4d68429b016306b4f2d8beb86cb9b3693fc1222

  • SHA512

    d3ed98eb5155d71672fa968b6c1af12e62b3d9434c8d63c368ada5eafe27f9251b4f0be14f241cf11c53847832c19e3f81e850cc907c73ec68e95081e9146b0c

  • SSDEEP

    12288:9Iny5DYTdEIJHaec3Y3sLl5yn3N3F1Dw8dZ7ks6RLjGYx6nUd:pUTXJzcIKyn9PDJ+swLSYwo

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\71472fcc8b8900ec069b2ac1e4d68429b016306b4f2d8beb86cb9b3693fc1222.exe
    "C:\Users\Admin\AppData\Local\Temp\71472fcc8b8900ec069b2ac1e4d68429b016306b4f2d8beb86cb9b3693fc1222.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:3672
    • C:\Windows\SysWOW64\net.exe
      net stop nethttpservice
      2⤵
      • Suspicious use of WriteProcessMemory
      PID:4680
      • C:\Windows\SysWOW64\net1.exe
        C:\Windows\system32\net1 stop nethttpservice
        3⤵
          PID:1304
      • C:\Windows\SysWOW64\net.exe
        net stop serviceupdater
        2⤵
        • Suspicious use of WriteProcessMemory
        PID:5112
        • C:\Windows\SysWOW64\net1.exe
          C:\Windows\system32\net1 stop serviceupdater
          3⤵
            PID:3548
        • C:\Windows\SysWOW64\installd.exe
          "C:\Windows\system32\installd.exe" nethfdrv
          2⤵
          • Executes dropped EXE
          • Loads dropped DLL
          PID:3420
        • C:\Windows\SysWOW64\nethtsrv.exe
          "C:\Windows\system32\nethtsrv.exe" -nfdi
          2⤵
          • Executes dropped EXE
          • Loads dropped DLL
          PID:2636
        • C:\Windows\SysWOW64\netupdsrv.exe
          "C:\Windows\system32\netupdsrv.exe" -nfdi
          2⤵
          • Executes dropped EXE
          PID:1096
        • C:\Windows\SysWOW64\net.exe
          net start nethttpservice
          2⤵
          • Suspicious use of WriteProcessMemory
          PID:4688
          • C:\Windows\SysWOW64\net1.exe
            C:\Windows\system32\net1 start nethttpservice
            3⤵
              PID:2668
          • C:\Windows\SysWOW64\net.exe
            net start serviceupdater
            2⤵
            • Suspicious use of WriteProcessMemory
            PID:4396
            • C:\Windows\SysWOW64\net1.exe
              C:\Windows\system32\net1 start serviceupdater
              3⤵
                PID:3888
          • 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:2764
          • C:\Windows\SysWOW64\netupdsrv.exe
            C:\Windows\SysWOW64\netupdsrv.exe
            1⤵
            • Executes dropped EXE
            PID:4960

          Network

          MITRE ATT&CK Enterprise v6

          Replay Monitor

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          Downloads

          • C:\Users\Admin\AppData\Local\Temp\nsaFB6E.tmp\System.dll

            Filesize

            11KB

            MD5

            c17103ae9072a06da581dec998343fc1

            SHA1

            b72148c6bdfaada8b8c3f950e610ee7cf1da1f8d

            SHA256

            dc58d8ad81cacb0c1ed72e33bff8f23ea40b5252b5bb55d393a0903e6819ae2f

            SHA512

            d32a71aaef18e993f28096d536e41c4d016850721b31171513ce28bbd805a54fd290b7c3e9d935f72e676a1acfb4f0dcc89d95040a0dd29f2b6975855c18986f

          • C:\Users\Admin\AppData\Local\Temp\nsaFB6E.tmp\nsExec.dll

            Filesize

            6KB

            MD5

            acc2b699edfea5bf5aae45aba3a41e96

            SHA1

            d2accf4d494e43ceb2cff69abe4dd17147d29cc2

            SHA256

            168a974eaa3f588d759db3f47c1a9fdc3494ba1fa1a73a84e5e3b2a4d58abd7e

            SHA512

            e29ea10ada98c71a18273b04f44f385b120d4e8473e441ce5748cfa44a23648814f2656f429b85440157988c88de776c6ac008dc38bf09cbb746c230a46c69fe

          • C:\Users\Admin\AppData\Local\Temp\nsaFB6E.tmp\nsExec.dll

            Filesize

            6KB

            MD5

            acc2b699edfea5bf5aae45aba3a41e96

            SHA1

            d2accf4d494e43ceb2cff69abe4dd17147d29cc2

            SHA256

            168a974eaa3f588d759db3f47c1a9fdc3494ba1fa1a73a84e5e3b2a4d58abd7e

            SHA512

            e29ea10ada98c71a18273b04f44f385b120d4e8473e441ce5748cfa44a23648814f2656f429b85440157988c88de776c6ac008dc38bf09cbb746c230a46c69fe

          • C:\Users\Admin\AppData\Local\Temp\nsaFB6E.tmp\nsExec.dll

            Filesize

            6KB

            MD5

            acc2b699edfea5bf5aae45aba3a41e96

            SHA1

            d2accf4d494e43ceb2cff69abe4dd17147d29cc2

            SHA256

            168a974eaa3f588d759db3f47c1a9fdc3494ba1fa1a73a84e5e3b2a4d58abd7e

            SHA512

            e29ea10ada98c71a18273b04f44f385b120d4e8473e441ce5748cfa44a23648814f2656f429b85440157988c88de776c6ac008dc38bf09cbb746c230a46c69fe

          • C:\Users\Admin\AppData\Local\Temp\nsaFB6E.tmp\nsExec.dll

            Filesize

            6KB

            MD5

            acc2b699edfea5bf5aae45aba3a41e96

            SHA1

            d2accf4d494e43ceb2cff69abe4dd17147d29cc2

            SHA256

            168a974eaa3f588d759db3f47c1a9fdc3494ba1fa1a73a84e5e3b2a4d58abd7e

            SHA512

            e29ea10ada98c71a18273b04f44f385b120d4e8473e441ce5748cfa44a23648814f2656f429b85440157988c88de776c6ac008dc38bf09cbb746c230a46c69fe

          • C:\Users\Admin\AppData\Local\Temp\nsaFB6E.tmp\nsExec.dll

            Filesize

            6KB

            MD5

            acc2b699edfea5bf5aae45aba3a41e96

            SHA1

            d2accf4d494e43ceb2cff69abe4dd17147d29cc2

            SHA256

            168a974eaa3f588d759db3f47c1a9fdc3494ba1fa1a73a84e5e3b2a4d58abd7e

            SHA512

            e29ea10ada98c71a18273b04f44f385b120d4e8473e441ce5748cfa44a23648814f2656f429b85440157988c88de776c6ac008dc38bf09cbb746c230a46c69fe

          • C:\Users\Admin\AppData\Local\Temp\nsaFB6E.tmp\nsExec.dll

            Filesize

            6KB

            MD5

            acc2b699edfea5bf5aae45aba3a41e96

            SHA1

            d2accf4d494e43ceb2cff69abe4dd17147d29cc2

            SHA256

            168a974eaa3f588d759db3f47c1a9fdc3494ba1fa1a73a84e5e3b2a4d58abd7e

            SHA512

            e29ea10ada98c71a18273b04f44f385b120d4e8473e441ce5748cfa44a23648814f2656f429b85440157988c88de776c6ac008dc38bf09cbb746c230a46c69fe

          • C:\Users\Admin\AppData\Local\Temp\nsaFB6E.tmp\nsExec.dll

            Filesize

            6KB

            MD5

            acc2b699edfea5bf5aae45aba3a41e96

            SHA1

            d2accf4d494e43ceb2cff69abe4dd17147d29cc2

            SHA256

            168a974eaa3f588d759db3f47c1a9fdc3494ba1fa1a73a84e5e3b2a4d58abd7e

            SHA512

            e29ea10ada98c71a18273b04f44f385b120d4e8473e441ce5748cfa44a23648814f2656f429b85440157988c88de776c6ac008dc38bf09cbb746c230a46c69fe

          • C:\Users\Admin\AppData\Local\Temp\nsaFB6E.tmp\nsExec.dll

            Filesize

            6KB

            MD5

            acc2b699edfea5bf5aae45aba3a41e96

            SHA1

            d2accf4d494e43ceb2cff69abe4dd17147d29cc2

            SHA256

            168a974eaa3f588d759db3f47c1a9fdc3494ba1fa1a73a84e5e3b2a4d58abd7e

            SHA512

            e29ea10ada98c71a18273b04f44f385b120d4e8473e441ce5748cfa44a23648814f2656f429b85440157988c88de776c6ac008dc38bf09cbb746c230a46c69fe

          • C:\Windows\SysWOW64\hfnapi.dll

            Filesize

            106KB

            MD5

            4e7db26ab9efe3ee88a213486778726d

            SHA1

            4caa49f7b70c79dad1a5f125107b64676bfaa3fa

            SHA256

            3724ed6ddc4f47e7e3972b211e5e6109d830c46fd26ddb20166a281afe104a77

            SHA512

            ae1288710bd0491bf6bf47e4c7c85391a4f90e0647aac55560162480b5b6a05ffa89cef81336b4e1ebd693dccbde45c555f2689e489bd718494ef1b7d3ecb298

          • C:\Windows\SysWOW64\hfnapi.dll

            Filesize

            106KB

            MD5

            4e7db26ab9efe3ee88a213486778726d

            SHA1

            4caa49f7b70c79dad1a5f125107b64676bfaa3fa

            SHA256

            3724ed6ddc4f47e7e3972b211e5e6109d830c46fd26ddb20166a281afe104a77

            SHA512

            ae1288710bd0491bf6bf47e4c7c85391a4f90e0647aac55560162480b5b6a05ffa89cef81336b4e1ebd693dccbde45c555f2689e489bd718494ef1b7d3ecb298

          • C:\Windows\SysWOW64\hfnapi.dll

            Filesize

            106KB

            MD5

            4e7db26ab9efe3ee88a213486778726d

            SHA1

            4caa49f7b70c79dad1a5f125107b64676bfaa3fa

            SHA256

            3724ed6ddc4f47e7e3972b211e5e6109d830c46fd26ddb20166a281afe104a77

            SHA512

            ae1288710bd0491bf6bf47e4c7c85391a4f90e0647aac55560162480b5b6a05ffa89cef81336b4e1ebd693dccbde45c555f2689e489bd718494ef1b7d3ecb298

          • C:\Windows\SysWOW64\hfnapi.dll

            Filesize

            106KB

            MD5

            4e7db26ab9efe3ee88a213486778726d

            SHA1

            4caa49f7b70c79dad1a5f125107b64676bfaa3fa

            SHA256

            3724ed6ddc4f47e7e3972b211e5e6109d830c46fd26ddb20166a281afe104a77

            SHA512

            ae1288710bd0491bf6bf47e4c7c85391a4f90e0647aac55560162480b5b6a05ffa89cef81336b4e1ebd693dccbde45c555f2689e489bd718494ef1b7d3ecb298

          • C:\Windows\SysWOW64\hfpapi.dll

            Filesize

            241KB

            MD5

            de9ffccc3ca7547f588e9c7164980f23

            SHA1

            977bcf56df57b6fa3ffac312a9cf0b43467baa4b

            SHA256

            29b0113921c452d32d8702117eb2a1920894bed381aaa20ef5a62f444a4bd5ec

            SHA512

            813c30537f2e34e9d2f2476ae01253e7e172cc91e87919f18b218a97b946e3d316d567b396dde260c43b35fbd510a8d8ceda0d843a48f5b1ea1d91fac4941a28

          • C:\Windows\SysWOW64\hfpapi.dll

            Filesize

            241KB

            MD5

            de9ffccc3ca7547f588e9c7164980f23

            SHA1

            977bcf56df57b6fa3ffac312a9cf0b43467baa4b

            SHA256

            29b0113921c452d32d8702117eb2a1920894bed381aaa20ef5a62f444a4bd5ec

            SHA512

            813c30537f2e34e9d2f2476ae01253e7e172cc91e87919f18b218a97b946e3d316d567b396dde260c43b35fbd510a8d8ceda0d843a48f5b1ea1d91fac4941a28

          • C:\Windows\SysWOW64\hfpapi.dll

            Filesize

            241KB

            MD5

            de9ffccc3ca7547f588e9c7164980f23

            SHA1

            977bcf56df57b6fa3ffac312a9cf0b43467baa4b

            SHA256

            29b0113921c452d32d8702117eb2a1920894bed381aaa20ef5a62f444a4bd5ec

            SHA512

            813c30537f2e34e9d2f2476ae01253e7e172cc91e87919f18b218a97b946e3d316d567b396dde260c43b35fbd510a8d8ceda0d843a48f5b1ea1d91fac4941a28

          • C:\Windows\SysWOW64\installd.exe

            Filesize

            108KB

            MD5

            576955930d812caf2f9f8fd2664a5445

            SHA1

            35b2c5335286901ccd9010ccaf2b7eb1d25d5c28

            SHA256

            beaccbe2911c3333f6caa351d1a94b02a021ab9ee34f77d0299fce3c3ed4c765

            SHA512

            a24f85dc0988e32492540a1078c3f3d3154e664f3062980538fa0fe3ebdb72b280d6a16965462d08567085d0a0af787c0f93ce675534fff737470cc280c2cba1

          • C:\Windows\SysWOW64\installd.exe

            Filesize

            108KB

            MD5

            576955930d812caf2f9f8fd2664a5445

            SHA1

            35b2c5335286901ccd9010ccaf2b7eb1d25d5c28

            SHA256

            beaccbe2911c3333f6caa351d1a94b02a021ab9ee34f77d0299fce3c3ed4c765

            SHA512

            a24f85dc0988e32492540a1078c3f3d3154e664f3062980538fa0fe3ebdb72b280d6a16965462d08567085d0a0af787c0f93ce675534fff737470cc280c2cba1

          • C:\Windows\SysWOW64\nethtsrv.exe

            Filesize

            176KB

            MD5

            dc4a4ad2d9c74a0b50ad7a09e191ba5b

            SHA1

            df5f9b91124b35650134d2bf83aff2cab9903527

            SHA256

            5311aca33b1d0328ec1aa33e08391877a86a1ac9d0b991673bb885ab1663d6df

            SHA512

            9f8b638cb47c332248d63673ec0306856d72862c0cf1c1cf1693519b0ff8b18bdb5b385de4d7b3c2d67334b659cefd26d3588c8978c9cb1cd55099cb4624135c

          • C:\Windows\SysWOW64\nethtsrv.exe

            Filesize

            176KB

            MD5

            dc4a4ad2d9c74a0b50ad7a09e191ba5b

            SHA1

            df5f9b91124b35650134d2bf83aff2cab9903527

            SHA256

            5311aca33b1d0328ec1aa33e08391877a86a1ac9d0b991673bb885ab1663d6df

            SHA512

            9f8b638cb47c332248d63673ec0306856d72862c0cf1c1cf1693519b0ff8b18bdb5b385de4d7b3c2d67334b659cefd26d3588c8978c9cb1cd55099cb4624135c

          • C:\Windows\SysWOW64\nethtsrv.exe

            Filesize

            176KB

            MD5

            dc4a4ad2d9c74a0b50ad7a09e191ba5b

            SHA1

            df5f9b91124b35650134d2bf83aff2cab9903527

            SHA256

            5311aca33b1d0328ec1aa33e08391877a86a1ac9d0b991673bb885ab1663d6df

            SHA512

            9f8b638cb47c332248d63673ec0306856d72862c0cf1c1cf1693519b0ff8b18bdb5b385de4d7b3c2d67334b659cefd26d3588c8978c9cb1cd55099cb4624135c

          • C:\Windows\SysWOW64\netupdsrv.exe

            Filesize

            158KB

            MD5

            b7e5c9fcd8a1b328617256a020bac927

            SHA1

            23509befa9644d4eee1fb5cb765072c54557929e

            SHA256

            3e8e195c2af391eb2dcba38b6b4f5b18b81317be2ad093400ce54c84b2db206b

            SHA512

            684c3afaff474174da4042dc0c757c3368a90ba745aed567cd724a8a697cf585d2d0f3e41d9058c8837a77473695b0dcbb2473213ae0aef87a5b024e45da4a7e

          • C:\Windows\SysWOW64\netupdsrv.exe

            Filesize

            158KB

            MD5

            b7e5c9fcd8a1b328617256a020bac927

            SHA1

            23509befa9644d4eee1fb5cb765072c54557929e

            SHA256

            3e8e195c2af391eb2dcba38b6b4f5b18b81317be2ad093400ce54c84b2db206b

            SHA512

            684c3afaff474174da4042dc0c757c3368a90ba745aed567cd724a8a697cf585d2d0f3e41d9058c8837a77473695b0dcbb2473213ae0aef87a5b024e45da4a7e

          • C:\Windows\SysWOW64\netupdsrv.exe

            Filesize

            158KB

            MD5

            b7e5c9fcd8a1b328617256a020bac927

            SHA1

            23509befa9644d4eee1fb5cb765072c54557929e

            SHA256

            3e8e195c2af391eb2dcba38b6b4f5b18b81317be2ad093400ce54c84b2db206b

            SHA512

            684c3afaff474174da4042dc0c757c3368a90ba745aed567cd724a8a697cf585d2d0f3e41d9058c8837a77473695b0dcbb2473213ae0aef87a5b024e45da4a7e

          • memory/1096-153-0x0000000000000000-mapping.dmp

          • memory/1304-137-0x0000000000000000-mapping.dmp

          • memory/2636-147-0x0000000000000000-mapping.dmp

          • memory/2668-159-0x0000000000000000-mapping.dmp

          • memory/3420-142-0x0000000000000000-mapping.dmp

          • memory/3548-141-0x0000000000000000-mapping.dmp

          • memory/3672-136-0x0000000000360000-0x00000000007BE000-memory.dmp

            Filesize

            4.4MB

          • memory/3672-166-0x0000000000360000-0x00000000007BE000-memory.dmp

            Filesize

            4.4MB

          • memory/3672-169-0x0000000000360000-0x00000000007BE000-memory.dmp

            Filesize

            4.4MB

          • memory/3888-167-0x0000000000000000-mapping.dmp

          • memory/4396-165-0x0000000000000000-mapping.dmp

          • memory/4680-135-0x0000000000000000-mapping.dmp

          • memory/4688-158-0x0000000000000000-mapping.dmp

          • memory/5112-140-0x0000000000000000-mapping.dmp