Analysis

  • max time kernel
    152s
  • max time network
    172s
  • 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 10:34

General

  • Target

    054c17936c0335f9993f5ebbdc3c1b572c6d621b8c4cc959b6884b4d506becd6.exe

  • Size

    602KB

  • MD5

    c7cd2f2e794f8546f0e1ef0f3efc9475

  • SHA1

    0f94356d72b0cd0fbce404718b26c5ee59d74758

  • SHA256

    054c17936c0335f9993f5ebbdc3c1b572c6d621b8c4cc959b6884b4d506becd6

  • SHA512

    0811a0cb2364c37d6010e0f514144a4f632fcce08ec4d4d4cc91382d724e1720e7a4a91bc30174906be2623f789d6c5fc5b1831710a92cab0e694a47c1c7f783

  • SSDEEP

    12288:jIny5DYTuJlrm+YciI+ZPyhWtH5rj/QANXt8CG0f1dJlmYnPGxQisQvE:rUTurYTJkM9j/51t7f1XlTe1J

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\054c17936c0335f9993f5ebbdc3c1b572c6d621b8c4cc959b6884b4d506becd6.exe
    "C:\Users\Admin\AppData\Local\Temp\054c17936c0335f9993f5ebbdc3c1b572c6d621b8c4cc959b6884b4d506becd6.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:1580
    • C:\Windows\SysWOW64\net.exe
      net stop nethttpservice
      2⤵
      • Suspicious use of WriteProcessMemory
      PID:4912
      • C:\Windows\SysWOW64\net1.exe
        C:\Windows\system32\net1 stop nethttpservice
        3⤵
          PID:4536
      • C:\Windows\SysWOW64\net.exe
        net stop serviceupdater
        2⤵
        • Suspicious use of WriteProcessMemory
        PID:4444
        • C:\Windows\SysWOW64\net1.exe
          C:\Windows\system32\net1 stop serviceupdater
          3⤵
            PID:2724
        • C:\Windows\SysWOW64\installd.exe
          "C:\Windows\system32\installd.exe" nethfdrv
          2⤵
          • Executes dropped EXE
          • Loads dropped DLL
          PID:3348
        • C:\Windows\SysWOW64\nethtsrv.exe
          "C:\Windows\system32\nethtsrv.exe" -nfdi
          2⤵
          • Executes dropped EXE
          • Loads dropped DLL
          PID:3392
        • C:\Windows\SysWOW64\netupdsrv.exe
          "C:\Windows\system32\netupdsrv.exe" -nfdi
          2⤵
          • Executes dropped EXE
          PID:5104
        • C:\Windows\SysWOW64\net.exe
          net start nethttpservice
          2⤵
          • Suspicious use of WriteProcessMemory
          PID:3496
          • C:\Windows\SysWOW64\net1.exe
            C:\Windows\system32\net1 start nethttpservice
            3⤵
              PID:1828
          • C:\Windows\SysWOW64\net.exe
            net start serviceupdater
            2⤵
            • Suspicious use of WriteProcessMemory
            PID:3696
            • C:\Windows\SysWOW64\net1.exe
              C:\Windows\system32\net1 start serviceupdater
              3⤵
                PID:2184
          • 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:4568
          • C:\Windows\SysWOW64\netupdsrv.exe
            C:\Windows\SysWOW64\netupdsrv.exe
            1⤵
            • Executes dropped EXE
            PID:4824

          Network

          MITRE ATT&CK Enterprise v6

          Replay Monitor

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          Downloads

          • C:\Users\Admin\AppData\Local\Temp\nswD8E2.tmp\System.dll

            Filesize

            11KB

            MD5

            c17103ae9072a06da581dec998343fc1

            SHA1

            b72148c6bdfaada8b8c3f950e610ee7cf1da1f8d

            SHA256

            dc58d8ad81cacb0c1ed72e33bff8f23ea40b5252b5bb55d393a0903e6819ae2f

            SHA512

            d32a71aaef18e993f28096d536e41c4d016850721b31171513ce28bbd805a54fd290b7c3e9d935f72e676a1acfb4f0dcc89d95040a0dd29f2b6975855c18986f

          • C:\Users\Admin\AppData\Local\Temp\nswD8E2.tmp\nsExec.dll

            Filesize

            6KB

            MD5

            acc2b699edfea5bf5aae45aba3a41e96

            SHA1

            d2accf4d494e43ceb2cff69abe4dd17147d29cc2

            SHA256

            168a974eaa3f588d759db3f47c1a9fdc3494ba1fa1a73a84e5e3b2a4d58abd7e

            SHA512

            e29ea10ada98c71a18273b04f44f385b120d4e8473e441ce5748cfa44a23648814f2656f429b85440157988c88de776c6ac008dc38bf09cbb746c230a46c69fe

          • C:\Users\Admin\AppData\Local\Temp\nswD8E2.tmp\nsExec.dll

            Filesize

            6KB

            MD5

            acc2b699edfea5bf5aae45aba3a41e96

            SHA1

            d2accf4d494e43ceb2cff69abe4dd17147d29cc2

            SHA256

            168a974eaa3f588d759db3f47c1a9fdc3494ba1fa1a73a84e5e3b2a4d58abd7e

            SHA512

            e29ea10ada98c71a18273b04f44f385b120d4e8473e441ce5748cfa44a23648814f2656f429b85440157988c88de776c6ac008dc38bf09cbb746c230a46c69fe

          • C:\Users\Admin\AppData\Local\Temp\nswD8E2.tmp\nsExec.dll

            Filesize

            6KB

            MD5

            acc2b699edfea5bf5aae45aba3a41e96

            SHA1

            d2accf4d494e43ceb2cff69abe4dd17147d29cc2

            SHA256

            168a974eaa3f588d759db3f47c1a9fdc3494ba1fa1a73a84e5e3b2a4d58abd7e

            SHA512

            e29ea10ada98c71a18273b04f44f385b120d4e8473e441ce5748cfa44a23648814f2656f429b85440157988c88de776c6ac008dc38bf09cbb746c230a46c69fe

          • C:\Users\Admin\AppData\Local\Temp\nswD8E2.tmp\nsExec.dll

            Filesize

            6KB

            MD5

            acc2b699edfea5bf5aae45aba3a41e96

            SHA1

            d2accf4d494e43ceb2cff69abe4dd17147d29cc2

            SHA256

            168a974eaa3f588d759db3f47c1a9fdc3494ba1fa1a73a84e5e3b2a4d58abd7e

            SHA512

            e29ea10ada98c71a18273b04f44f385b120d4e8473e441ce5748cfa44a23648814f2656f429b85440157988c88de776c6ac008dc38bf09cbb746c230a46c69fe

          • C:\Users\Admin\AppData\Local\Temp\nswD8E2.tmp\nsExec.dll

            Filesize

            6KB

            MD5

            acc2b699edfea5bf5aae45aba3a41e96

            SHA1

            d2accf4d494e43ceb2cff69abe4dd17147d29cc2

            SHA256

            168a974eaa3f588d759db3f47c1a9fdc3494ba1fa1a73a84e5e3b2a4d58abd7e

            SHA512

            e29ea10ada98c71a18273b04f44f385b120d4e8473e441ce5748cfa44a23648814f2656f429b85440157988c88de776c6ac008dc38bf09cbb746c230a46c69fe

          • C:\Users\Admin\AppData\Local\Temp\nswD8E2.tmp\nsExec.dll

            Filesize

            6KB

            MD5

            acc2b699edfea5bf5aae45aba3a41e96

            SHA1

            d2accf4d494e43ceb2cff69abe4dd17147d29cc2

            SHA256

            168a974eaa3f588d759db3f47c1a9fdc3494ba1fa1a73a84e5e3b2a4d58abd7e

            SHA512

            e29ea10ada98c71a18273b04f44f385b120d4e8473e441ce5748cfa44a23648814f2656f429b85440157988c88de776c6ac008dc38bf09cbb746c230a46c69fe

          • C:\Users\Admin\AppData\Local\Temp\nswD8E2.tmp\nsExec.dll

            Filesize

            6KB

            MD5

            acc2b699edfea5bf5aae45aba3a41e96

            SHA1

            d2accf4d494e43ceb2cff69abe4dd17147d29cc2

            SHA256

            168a974eaa3f588d759db3f47c1a9fdc3494ba1fa1a73a84e5e3b2a4d58abd7e

            SHA512

            e29ea10ada98c71a18273b04f44f385b120d4e8473e441ce5748cfa44a23648814f2656f429b85440157988c88de776c6ac008dc38bf09cbb746c230a46c69fe

          • C:\Users\Admin\AppData\Local\Temp\nswD8E2.tmp\nsExec.dll

            Filesize

            6KB

            MD5

            acc2b699edfea5bf5aae45aba3a41e96

            SHA1

            d2accf4d494e43ceb2cff69abe4dd17147d29cc2

            SHA256

            168a974eaa3f588d759db3f47c1a9fdc3494ba1fa1a73a84e5e3b2a4d58abd7e

            SHA512

            e29ea10ada98c71a18273b04f44f385b120d4e8473e441ce5748cfa44a23648814f2656f429b85440157988c88de776c6ac008dc38bf09cbb746c230a46c69fe

          • C:\Windows\SysWOW64\hfnapi.dll

            Filesize

            106KB

            MD5

            f003aff425bf88cd02f6c971ff65ccbf

            SHA1

            f150d9942a9bb2d1515b6256fbd9ca5777eb38ed

            SHA256

            52cefbd08cf8bb690b64af96e34a1dc2e8a4a153ff3be5df7744f05933d84ca6

            SHA512

            3ea22e39103a62485b014656cc99639dad64daeb67f92087a92dbc50d96e4f20124b22c74c09a22041b20ae18b7f7ef98abffcaea42789a54bbb3b2b45918589

          • C:\Windows\SysWOW64\hfnapi.dll

            Filesize

            106KB

            MD5

            f003aff425bf88cd02f6c971ff65ccbf

            SHA1

            f150d9942a9bb2d1515b6256fbd9ca5777eb38ed

            SHA256

            52cefbd08cf8bb690b64af96e34a1dc2e8a4a153ff3be5df7744f05933d84ca6

            SHA512

            3ea22e39103a62485b014656cc99639dad64daeb67f92087a92dbc50d96e4f20124b22c74c09a22041b20ae18b7f7ef98abffcaea42789a54bbb3b2b45918589

          • C:\Windows\SysWOW64\hfnapi.dll

            Filesize

            106KB

            MD5

            f003aff425bf88cd02f6c971ff65ccbf

            SHA1

            f150d9942a9bb2d1515b6256fbd9ca5777eb38ed

            SHA256

            52cefbd08cf8bb690b64af96e34a1dc2e8a4a153ff3be5df7744f05933d84ca6

            SHA512

            3ea22e39103a62485b014656cc99639dad64daeb67f92087a92dbc50d96e4f20124b22c74c09a22041b20ae18b7f7ef98abffcaea42789a54bbb3b2b45918589

          • C:\Windows\SysWOW64\hfnapi.dll

            Filesize

            106KB

            MD5

            f003aff425bf88cd02f6c971ff65ccbf

            SHA1

            f150d9942a9bb2d1515b6256fbd9ca5777eb38ed

            SHA256

            52cefbd08cf8bb690b64af96e34a1dc2e8a4a153ff3be5df7744f05933d84ca6

            SHA512

            3ea22e39103a62485b014656cc99639dad64daeb67f92087a92dbc50d96e4f20124b22c74c09a22041b20ae18b7f7ef98abffcaea42789a54bbb3b2b45918589

          • C:\Windows\SysWOW64\hfpapi.dll

            Filesize

            241KB

            MD5

            015698f01d5ac87dbaeb51a002f6041e

            SHA1

            5c9f7691a9a865408a86375b5f0afe4711dbae68

            SHA256

            2364fa4da672e58dead05753eea578e5a521804c269bb5c1438d176622340e96

            SHA512

            ddf5f3d7200cfb52732d6ed7768449b8ff96f1cb93e21731065ae8fb622c4adb6f2db4e68dfea6f292d9f662afc25053a3d9266178ddd504a9d3132a413060c5

          • C:\Windows\SysWOW64\hfpapi.dll

            Filesize

            241KB

            MD5

            015698f01d5ac87dbaeb51a002f6041e

            SHA1

            5c9f7691a9a865408a86375b5f0afe4711dbae68

            SHA256

            2364fa4da672e58dead05753eea578e5a521804c269bb5c1438d176622340e96

            SHA512

            ddf5f3d7200cfb52732d6ed7768449b8ff96f1cb93e21731065ae8fb622c4adb6f2db4e68dfea6f292d9f662afc25053a3d9266178ddd504a9d3132a413060c5

          • C:\Windows\SysWOW64\hfpapi.dll

            Filesize

            241KB

            MD5

            015698f01d5ac87dbaeb51a002f6041e

            SHA1

            5c9f7691a9a865408a86375b5f0afe4711dbae68

            SHA256

            2364fa4da672e58dead05753eea578e5a521804c269bb5c1438d176622340e96

            SHA512

            ddf5f3d7200cfb52732d6ed7768449b8ff96f1cb93e21731065ae8fb622c4adb6f2db4e68dfea6f292d9f662afc25053a3d9266178ddd504a9d3132a413060c5

          • C:\Windows\SysWOW64\installd.exe

            Filesize

            108KB

            MD5

            e57a97adc2aa1c2aeffa69e50ae06646

            SHA1

            6e8c0e8cae5e5eb9bcd038bd4cb1066e340c0f75

            SHA256

            be77067e1edb680be22bf4e821c1bc947569e106ede4ffccdb8145a1db8d6316

            SHA512

            88cef728889f08114a6cb0d5dc19e319dc7387713437c96e6b7a2864bb780fca92e28f7feecc78655ca98d7dfb18bbcba26538803ac75806a4295f45b83ee2c0

          • C:\Windows\SysWOW64\installd.exe

            Filesize

            108KB

            MD5

            e57a97adc2aa1c2aeffa69e50ae06646

            SHA1

            6e8c0e8cae5e5eb9bcd038bd4cb1066e340c0f75

            SHA256

            be77067e1edb680be22bf4e821c1bc947569e106ede4ffccdb8145a1db8d6316

            SHA512

            88cef728889f08114a6cb0d5dc19e319dc7387713437c96e6b7a2864bb780fca92e28f7feecc78655ca98d7dfb18bbcba26538803ac75806a4295f45b83ee2c0

          • C:\Windows\SysWOW64\nethtsrv.exe

            Filesize

            176KB

            MD5

            ebf15887f90a5dec412b9fd519bdb3c5

            SHA1

            d4cc46af614a3ff5a20ad665450f26ca44a3160e

            SHA256

            b669952765a38ef2fbedae182e9c355b85f8e265568a79838752d87e090e19a1

            SHA512

            a36d904fb54a813802392576d6ee9bb14910645cbf38789a547e77390079d449f2c03086cc334566ae5faded84031b9062f8c4e704697df69a35f5c7b44d5896

          • C:\Windows\SysWOW64\nethtsrv.exe

            Filesize

            176KB

            MD5

            ebf15887f90a5dec412b9fd519bdb3c5

            SHA1

            d4cc46af614a3ff5a20ad665450f26ca44a3160e

            SHA256

            b669952765a38ef2fbedae182e9c355b85f8e265568a79838752d87e090e19a1

            SHA512

            a36d904fb54a813802392576d6ee9bb14910645cbf38789a547e77390079d449f2c03086cc334566ae5faded84031b9062f8c4e704697df69a35f5c7b44d5896

          • C:\Windows\SysWOW64\nethtsrv.exe

            Filesize

            176KB

            MD5

            ebf15887f90a5dec412b9fd519bdb3c5

            SHA1

            d4cc46af614a3ff5a20ad665450f26ca44a3160e

            SHA256

            b669952765a38ef2fbedae182e9c355b85f8e265568a79838752d87e090e19a1

            SHA512

            a36d904fb54a813802392576d6ee9bb14910645cbf38789a547e77390079d449f2c03086cc334566ae5faded84031b9062f8c4e704697df69a35f5c7b44d5896

          • C:\Windows\SysWOW64\netupdsrv.exe

            Filesize

            159KB

            MD5

            ad883b59a580b42b888a468301ef43d5

            SHA1

            dba69330343e1e81ad35810d9f64b6df77e86479

            SHA256

            463a53f2d44a6fecd5c87b0299f3e2597c6ecf36f38c99488ddc947d1aac3628

            SHA512

            ad5e1e94bb03111c2a6b37fd13a634b902b8a94731fa6796a2f0c650baec43c85f559e334be81b9a8546cf8d18c31e493b71b96a544163db5628073a182ec3c3

          • C:\Windows\SysWOW64\netupdsrv.exe

            Filesize

            159KB

            MD5

            ad883b59a580b42b888a468301ef43d5

            SHA1

            dba69330343e1e81ad35810d9f64b6df77e86479

            SHA256

            463a53f2d44a6fecd5c87b0299f3e2597c6ecf36f38c99488ddc947d1aac3628

            SHA512

            ad5e1e94bb03111c2a6b37fd13a634b902b8a94731fa6796a2f0c650baec43c85f559e334be81b9a8546cf8d18c31e493b71b96a544163db5628073a182ec3c3

          • C:\Windows\SysWOW64\netupdsrv.exe

            Filesize

            159KB

            MD5

            ad883b59a580b42b888a468301ef43d5

            SHA1

            dba69330343e1e81ad35810d9f64b6df77e86479

            SHA256

            463a53f2d44a6fecd5c87b0299f3e2597c6ecf36f38c99488ddc947d1aac3628

            SHA512

            ad5e1e94bb03111c2a6b37fd13a634b902b8a94731fa6796a2f0c650baec43c85f559e334be81b9a8546cf8d18c31e493b71b96a544163db5628073a182ec3c3

          • memory/1580-137-0x0000000000360000-0x00000000007BE000-memory.dmp

            Filesize

            4.4MB

          • memory/1580-169-0x0000000000360000-0x00000000007BE000-memory.dmp

            Filesize

            4.4MB

          • memory/1580-132-0x0000000000360000-0x00000000007BE000-memory.dmp

            Filesize

            4.4MB

          • memory/1828-160-0x0000000000000000-mapping.dmp

          • memory/2184-167-0x0000000000000000-mapping.dmp

          • memory/2724-142-0x0000000000000000-mapping.dmp

          • memory/3348-143-0x0000000000000000-mapping.dmp

          • memory/3392-148-0x0000000000000000-mapping.dmp

          • memory/3496-159-0x0000000000000000-mapping.dmp

          • memory/3696-166-0x0000000000000000-mapping.dmp

          • memory/4444-141-0x0000000000000000-mapping.dmp

          • memory/4536-138-0x0000000000000000-mapping.dmp

          • memory/4912-136-0x0000000000000000-mapping.dmp

          • memory/5104-154-0x0000000000000000-mapping.dmp