Analysis

  • max time kernel
    161s
  • max time network
    183s
  • 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 10:17

General

  • Target

    9f47f2e47c7c4e18b6d48983f04f84c527f357e74d9515600afe309f52db4a7d.exe

  • Size

    601KB

  • MD5

    4a4c3b396787a56d5df90a2267eb2f13

  • SHA1

    ef1bee94f3d1f528755788adee9f3a8d001313f6

  • SHA256

    9f47f2e47c7c4e18b6d48983f04f84c527f357e74d9515600afe309f52db4a7d

  • SHA512

    163eb66cb28d49f6740c38f918043c47a4237e670c9d882181d3c9646927736e5ef0cfc9b742ba1257787bd7c6c78080271082d52c112633c09732b4598cd5ba

  • SSDEEP

    12288:CIny5DYT2G0WO1dn42OL0VDCW8AjRLIkNUbhcXP4q+3zopf:kUT2gqdn4R05CgRLIMUuP4q+Dsf

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\9f47f2e47c7c4e18b6d48983f04f84c527f357e74d9515600afe309f52db4a7d.exe
    "C:\Users\Admin\AppData\Local\Temp\9f47f2e47c7c4e18b6d48983f04f84c527f357e74d9515600afe309f52db4a7d.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:1664
    • C:\Windows\SysWOW64\net.exe
      net stop nethttpservice
      2⤵
      • Suspicious use of WriteProcessMemory
      PID:3456
      • C:\Windows\SysWOW64\net1.exe
        C:\Windows\system32\net1 stop nethttpservice
        3⤵
          PID:2884
      • C:\Windows\SysWOW64\net.exe
        net stop serviceupdater
        2⤵
        • Suspicious use of WriteProcessMemory
        PID:4924
        • C:\Windows\SysWOW64\net1.exe
          C:\Windows\system32\net1 stop serviceupdater
          3⤵
            PID:5032
        • C:\Windows\SysWOW64\installd.exe
          "C:\Windows\system32\installd.exe" nethfdrv
          2⤵
          • Executes dropped EXE
          • Loads dropped DLL
          PID:696
        • C:\Windows\SysWOW64\nethtsrv.exe
          "C:\Windows\system32\nethtsrv.exe" -nfdi
          2⤵
          • Executes dropped EXE
          • Loads dropped DLL
          PID:4268
        • C:\Windows\SysWOW64\netupdsrv.exe
          "C:\Windows\system32\netupdsrv.exe" -nfdi
          2⤵
          • Executes dropped EXE
          PID:2408
        • C:\Windows\SysWOW64\net.exe
          net start nethttpservice
          2⤵
          • Suspicious use of WriteProcessMemory
          PID:2708
          • C:\Windows\SysWOW64\net1.exe
            C:\Windows\system32\net1 start nethttpservice
            3⤵
              PID:2160
          • C:\Windows\SysWOW64\net.exe
            net start serviceupdater
            2⤵
            • Suspicious use of WriteProcessMemory
            PID:3492
            • C:\Windows\SysWOW64\net1.exe
              C:\Windows\system32\net1 start serviceupdater
              3⤵
                PID:3500
          • 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:1600
          • C:\Windows\SysWOW64\netupdsrv.exe
            C:\Windows\SysWOW64\netupdsrv.exe
            1⤵
            • Executes dropped EXE
            PID:1968

          Network

          MITRE ATT&CK Enterprise v6

          Replay Monitor

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          Downloads

          • C:\Users\Admin\AppData\Local\Temp\nsfED55.tmp\System.dll

            Filesize

            11KB

            MD5

            c17103ae9072a06da581dec998343fc1

            SHA1

            b72148c6bdfaada8b8c3f950e610ee7cf1da1f8d

            SHA256

            dc58d8ad81cacb0c1ed72e33bff8f23ea40b5252b5bb55d393a0903e6819ae2f

            SHA512

            d32a71aaef18e993f28096d536e41c4d016850721b31171513ce28bbd805a54fd290b7c3e9d935f72e676a1acfb4f0dcc89d95040a0dd29f2b6975855c18986f

          • C:\Users\Admin\AppData\Local\Temp\nsfED55.tmp\nsExec.dll

            Filesize

            6KB

            MD5

            acc2b699edfea5bf5aae45aba3a41e96

            SHA1

            d2accf4d494e43ceb2cff69abe4dd17147d29cc2

            SHA256

            168a974eaa3f588d759db3f47c1a9fdc3494ba1fa1a73a84e5e3b2a4d58abd7e

            SHA512

            e29ea10ada98c71a18273b04f44f385b120d4e8473e441ce5748cfa44a23648814f2656f429b85440157988c88de776c6ac008dc38bf09cbb746c230a46c69fe

          • C:\Users\Admin\AppData\Local\Temp\nsfED55.tmp\nsExec.dll

            Filesize

            6KB

            MD5

            acc2b699edfea5bf5aae45aba3a41e96

            SHA1

            d2accf4d494e43ceb2cff69abe4dd17147d29cc2

            SHA256

            168a974eaa3f588d759db3f47c1a9fdc3494ba1fa1a73a84e5e3b2a4d58abd7e

            SHA512

            e29ea10ada98c71a18273b04f44f385b120d4e8473e441ce5748cfa44a23648814f2656f429b85440157988c88de776c6ac008dc38bf09cbb746c230a46c69fe

          • C:\Users\Admin\AppData\Local\Temp\nsfED55.tmp\nsExec.dll

            Filesize

            6KB

            MD5

            acc2b699edfea5bf5aae45aba3a41e96

            SHA1

            d2accf4d494e43ceb2cff69abe4dd17147d29cc2

            SHA256

            168a974eaa3f588d759db3f47c1a9fdc3494ba1fa1a73a84e5e3b2a4d58abd7e

            SHA512

            e29ea10ada98c71a18273b04f44f385b120d4e8473e441ce5748cfa44a23648814f2656f429b85440157988c88de776c6ac008dc38bf09cbb746c230a46c69fe

          • C:\Users\Admin\AppData\Local\Temp\nsfED55.tmp\nsExec.dll

            Filesize

            6KB

            MD5

            acc2b699edfea5bf5aae45aba3a41e96

            SHA1

            d2accf4d494e43ceb2cff69abe4dd17147d29cc2

            SHA256

            168a974eaa3f588d759db3f47c1a9fdc3494ba1fa1a73a84e5e3b2a4d58abd7e

            SHA512

            e29ea10ada98c71a18273b04f44f385b120d4e8473e441ce5748cfa44a23648814f2656f429b85440157988c88de776c6ac008dc38bf09cbb746c230a46c69fe

          • C:\Users\Admin\AppData\Local\Temp\nsfED55.tmp\nsExec.dll

            Filesize

            6KB

            MD5

            acc2b699edfea5bf5aae45aba3a41e96

            SHA1

            d2accf4d494e43ceb2cff69abe4dd17147d29cc2

            SHA256

            168a974eaa3f588d759db3f47c1a9fdc3494ba1fa1a73a84e5e3b2a4d58abd7e

            SHA512

            e29ea10ada98c71a18273b04f44f385b120d4e8473e441ce5748cfa44a23648814f2656f429b85440157988c88de776c6ac008dc38bf09cbb746c230a46c69fe

          • C:\Users\Admin\AppData\Local\Temp\nsfED55.tmp\nsExec.dll

            Filesize

            6KB

            MD5

            acc2b699edfea5bf5aae45aba3a41e96

            SHA1

            d2accf4d494e43ceb2cff69abe4dd17147d29cc2

            SHA256

            168a974eaa3f588d759db3f47c1a9fdc3494ba1fa1a73a84e5e3b2a4d58abd7e

            SHA512

            e29ea10ada98c71a18273b04f44f385b120d4e8473e441ce5748cfa44a23648814f2656f429b85440157988c88de776c6ac008dc38bf09cbb746c230a46c69fe

          • C:\Users\Admin\AppData\Local\Temp\nsfED55.tmp\nsExec.dll

            Filesize

            6KB

            MD5

            acc2b699edfea5bf5aae45aba3a41e96

            SHA1

            d2accf4d494e43ceb2cff69abe4dd17147d29cc2

            SHA256

            168a974eaa3f588d759db3f47c1a9fdc3494ba1fa1a73a84e5e3b2a4d58abd7e

            SHA512

            e29ea10ada98c71a18273b04f44f385b120d4e8473e441ce5748cfa44a23648814f2656f429b85440157988c88de776c6ac008dc38bf09cbb746c230a46c69fe

          • C:\Users\Admin\AppData\Local\Temp\nsfED55.tmp\nsExec.dll

            Filesize

            6KB

            MD5

            acc2b699edfea5bf5aae45aba3a41e96

            SHA1

            d2accf4d494e43ceb2cff69abe4dd17147d29cc2

            SHA256

            168a974eaa3f588d759db3f47c1a9fdc3494ba1fa1a73a84e5e3b2a4d58abd7e

            SHA512

            e29ea10ada98c71a18273b04f44f385b120d4e8473e441ce5748cfa44a23648814f2656f429b85440157988c88de776c6ac008dc38bf09cbb746c230a46c69fe

          • C:\Windows\SysWOW64\hfnapi.dll

            Filesize

            106KB

            MD5

            1e9953d18f6942a7a18e61d8453b42f1

            SHA1

            6a3bbc7ad390e95bb5c1842d70850824b85c0515

            SHA256

            a73507318ea0c64d826b3804b1589adfc044e530500cbc1449615c802e0bc397

            SHA512

            6a0ba69a5dbb0e532dd0879da2e1e3ef1054353062d3391ca736bd36000e2e53139d7d8ca9e9d66e9e52e11783651341dba2e22b9769f21150916333fd939d20

          • C:\Windows\SysWOW64\hfnapi.dll

            Filesize

            106KB

            MD5

            1e9953d18f6942a7a18e61d8453b42f1

            SHA1

            6a3bbc7ad390e95bb5c1842d70850824b85c0515

            SHA256

            a73507318ea0c64d826b3804b1589adfc044e530500cbc1449615c802e0bc397

            SHA512

            6a0ba69a5dbb0e532dd0879da2e1e3ef1054353062d3391ca736bd36000e2e53139d7d8ca9e9d66e9e52e11783651341dba2e22b9769f21150916333fd939d20

          • C:\Windows\SysWOW64\hfnapi.dll

            Filesize

            106KB

            MD5

            1e9953d18f6942a7a18e61d8453b42f1

            SHA1

            6a3bbc7ad390e95bb5c1842d70850824b85c0515

            SHA256

            a73507318ea0c64d826b3804b1589adfc044e530500cbc1449615c802e0bc397

            SHA512

            6a0ba69a5dbb0e532dd0879da2e1e3ef1054353062d3391ca736bd36000e2e53139d7d8ca9e9d66e9e52e11783651341dba2e22b9769f21150916333fd939d20

          • C:\Windows\SysWOW64\hfnapi.dll

            Filesize

            106KB

            MD5

            1e9953d18f6942a7a18e61d8453b42f1

            SHA1

            6a3bbc7ad390e95bb5c1842d70850824b85c0515

            SHA256

            a73507318ea0c64d826b3804b1589adfc044e530500cbc1449615c802e0bc397

            SHA512

            6a0ba69a5dbb0e532dd0879da2e1e3ef1054353062d3391ca736bd36000e2e53139d7d8ca9e9d66e9e52e11783651341dba2e22b9769f21150916333fd939d20

          • C:\Windows\SysWOW64\hfpapi.dll

            Filesize

            241KB

            MD5

            af3d4b5a384bfa8a914da589efd451d7

            SHA1

            7a70edbfd84b5ef52b1410abaa2021e08234d284

            SHA256

            38f4172206be80b4fb737379d7830884ed7ecff7f1acd83576c219ff794684f4

            SHA512

            b8d33a1b4326c25bd437f71ff2f7b4e1c661fa2140137708b659c53a38067c14e3164644da5cb108af704fe6025202c422ad5452f999b046677f9a5aa0ecde5b

          • C:\Windows\SysWOW64\hfpapi.dll

            Filesize

            241KB

            MD5

            af3d4b5a384bfa8a914da589efd451d7

            SHA1

            7a70edbfd84b5ef52b1410abaa2021e08234d284

            SHA256

            38f4172206be80b4fb737379d7830884ed7ecff7f1acd83576c219ff794684f4

            SHA512

            b8d33a1b4326c25bd437f71ff2f7b4e1c661fa2140137708b659c53a38067c14e3164644da5cb108af704fe6025202c422ad5452f999b046677f9a5aa0ecde5b

          • C:\Windows\SysWOW64\hfpapi.dll

            Filesize

            241KB

            MD5

            af3d4b5a384bfa8a914da589efd451d7

            SHA1

            7a70edbfd84b5ef52b1410abaa2021e08234d284

            SHA256

            38f4172206be80b4fb737379d7830884ed7ecff7f1acd83576c219ff794684f4

            SHA512

            b8d33a1b4326c25bd437f71ff2f7b4e1c661fa2140137708b659c53a38067c14e3164644da5cb108af704fe6025202c422ad5452f999b046677f9a5aa0ecde5b

          • C:\Windows\SysWOW64\installd.exe

            Filesize

            108KB

            MD5

            8ecfa4253398fbb6cc1862b6559e3019

            SHA1

            5303d9242dfa5210a7a89c5eae08275abaac41bd

            SHA256

            22d37572ac72ebda9807cdc71eba78507fb74e137c70166c4d070b81a6b2f9df

            SHA512

            a76221dd45f45c439d15f2bb17c1ecd7db5d968da42f8e08d36c2a1ee36b52f2d54edf344a1916d4d36697ce3ed6ff64c46bfdaedca07681c98a0f93a6af32e2

          • C:\Windows\SysWOW64\installd.exe

            Filesize

            108KB

            MD5

            8ecfa4253398fbb6cc1862b6559e3019

            SHA1

            5303d9242dfa5210a7a89c5eae08275abaac41bd

            SHA256

            22d37572ac72ebda9807cdc71eba78507fb74e137c70166c4d070b81a6b2f9df

            SHA512

            a76221dd45f45c439d15f2bb17c1ecd7db5d968da42f8e08d36c2a1ee36b52f2d54edf344a1916d4d36697ce3ed6ff64c46bfdaedca07681c98a0f93a6af32e2

          • C:\Windows\SysWOW64\nethtsrv.exe

            Filesize

            176KB

            MD5

            137c52625c50427b675847778acfeeb7

            SHA1

            1683f314d582465bbfb7842bcd3bc74d3714f655

            SHA256

            6171dc0019b210e7aa7bd9f0d6eac957438fb4791f61410d867d3a744f1371fa

            SHA512

            a18edde9f939e91acd9395cdf4e1a5e7a2aed36477c564c31a64d2c3843ee1b2eae2412ae5cb02f0dcaedef914211616ed94bbf43cd38489e0d185b82f782c4c

          • C:\Windows\SysWOW64\nethtsrv.exe

            Filesize

            176KB

            MD5

            137c52625c50427b675847778acfeeb7

            SHA1

            1683f314d582465bbfb7842bcd3bc74d3714f655

            SHA256

            6171dc0019b210e7aa7bd9f0d6eac957438fb4791f61410d867d3a744f1371fa

            SHA512

            a18edde9f939e91acd9395cdf4e1a5e7a2aed36477c564c31a64d2c3843ee1b2eae2412ae5cb02f0dcaedef914211616ed94bbf43cd38489e0d185b82f782c4c

          • C:\Windows\SysWOW64\nethtsrv.exe

            Filesize

            176KB

            MD5

            137c52625c50427b675847778acfeeb7

            SHA1

            1683f314d582465bbfb7842bcd3bc74d3714f655

            SHA256

            6171dc0019b210e7aa7bd9f0d6eac957438fb4791f61410d867d3a744f1371fa

            SHA512

            a18edde9f939e91acd9395cdf4e1a5e7a2aed36477c564c31a64d2c3843ee1b2eae2412ae5cb02f0dcaedef914211616ed94bbf43cd38489e0d185b82f782c4c

          • C:\Windows\SysWOW64\netupdsrv.exe

            Filesize

            158KB

            MD5

            becd5f1817b2bd9edaa103bfbdc1d7c7

            SHA1

            750c544ccd56f2b85b369756c1c7cffaee7eea52

            SHA256

            9fd18c5ef161e7264f67ab18e42843c1597199b8517bdee16171018e95ffa353

            SHA512

            5282260eecbc6467e384dcc2237f9214b5d4a52a3e6887699bd7a610b8b8cfcd872ecea50d06933691091d6200a0a0e2a91fcb36888759d66b0f23ec8598208f

          • C:\Windows\SysWOW64\netupdsrv.exe

            Filesize

            158KB

            MD5

            becd5f1817b2bd9edaa103bfbdc1d7c7

            SHA1

            750c544ccd56f2b85b369756c1c7cffaee7eea52

            SHA256

            9fd18c5ef161e7264f67ab18e42843c1597199b8517bdee16171018e95ffa353

            SHA512

            5282260eecbc6467e384dcc2237f9214b5d4a52a3e6887699bd7a610b8b8cfcd872ecea50d06933691091d6200a0a0e2a91fcb36888759d66b0f23ec8598208f

          • C:\Windows\SysWOW64\netupdsrv.exe

            Filesize

            158KB

            MD5

            becd5f1817b2bd9edaa103bfbdc1d7c7

            SHA1

            750c544ccd56f2b85b369756c1c7cffaee7eea52

            SHA256

            9fd18c5ef161e7264f67ab18e42843c1597199b8517bdee16171018e95ffa353

            SHA512

            5282260eecbc6467e384dcc2237f9214b5d4a52a3e6887699bd7a610b8b8cfcd872ecea50d06933691091d6200a0a0e2a91fcb36888759d66b0f23ec8598208f

          • memory/696-143-0x0000000000000000-mapping.dmp

          • memory/1664-169-0x0000000000360000-0x00000000007BE000-memory.dmp

            Filesize

            4.4MB

          • memory/1664-132-0x0000000000360000-0x00000000007BE000-memory.dmp

            Filesize

            4.4MB

          • memory/1664-142-0x0000000000360000-0x00000000007BE000-memory.dmp

            Filesize

            4.4MB

          • memory/2160-160-0x0000000000000000-mapping.dmp

          • memory/2408-154-0x0000000000000000-mapping.dmp

          • memory/2708-159-0x0000000000000000-mapping.dmp

          • memory/2884-137-0x0000000000000000-mapping.dmp

          • memory/3456-136-0x0000000000000000-mapping.dmp

          • memory/3492-166-0x0000000000000000-mapping.dmp

          • memory/3500-167-0x0000000000000000-mapping.dmp

          • memory/4268-148-0x0000000000000000-mapping.dmp

          • memory/4924-140-0x0000000000000000-mapping.dmp

          • memory/5032-141-0x0000000000000000-mapping.dmp