Analysis

  • max time kernel
    179s
  • max time network
    204s
  • 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 10:18

General

  • Target

    98e23a8f2603a44fa691002e68238bffab349269b0a60dd723b2f884994a5cd5.exe

  • Size

    602KB

  • MD5

    db08b47f343db0d5c46686d05e4c89fb

  • SHA1

    e781921119586d73e1d626614d8450ef149b2736

  • SHA256

    98e23a8f2603a44fa691002e68238bffab349269b0a60dd723b2f884994a5cd5

  • SHA512

    0ad411b80ad7183a4369e9e57e0dcd423b670ca1d0d2398d0ac409115fedce7a288f58def8474ead63b8162751baab7bccff87e1608e604587b513555ca3b31d

  • SSDEEP

    12288:HIny5DYTYGb+sdXWgm340Snrii9ngP6yMUbin93wLjihEJdE:PUTP+sdxmdqr5gl31

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\98e23a8f2603a44fa691002e68238bffab349269b0a60dd723b2f884994a5cd5.exe
    "C:\Users\Admin\AppData\Local\Temp\98e23a8f2603a44fa691002e68238bffab349269b0a60dd723b2f884994a5cd5.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:820
    • C:\Windows\SysWOW64\net.exe
      net stop nethttpservice
      2⤵
      • Suspicious use of WriteProcessMemory
      PID:4068
      • C:\Windows\SysWOW64\net1.exe
        C:\Windows\system32\net1 stop nethttpservice
        3⤵
          PID:4908
      • C:\Windows\SysWOW64\net.exe
        net stop serviceupdater
        2⤵
        • Suspicious use of WriteProcessMemory
        PID:2196
        • C:\Windows\SysWOW64\net1.exe
          C:\Windows\system32\net1 stop serviceupdater
          3⤵
            PID:3628
        • C:\Windows\SysWOW64\installd.exe
          "C:\Windows\system32\installd.exe" nethfdrv
          2⤵
          • Executes dropped EXE
          • Loads dropped DLL
          PID:520
        • C:\Windows\SysWOW64\nethtsrv.exe
          "C:\Windows\system32\nethtsrv.exe" -nfdi
          2⤵
          • Executes dropped EXE
          • Loads dropped DLL
          PID:1472
        • C:\Windows\SysWOW64\netupdsrv.exe
          "C:\Windows\system32\netupdsrv.exe" -nfdi
          2⤵
          • Executes dropped EXE
          PID:2436
        • C:\Windows\SysWOW64\net.exe
          net start nethttpservice
          2⤵
          • Suspicious use of WriteProcessMemory
          PID:4980
          • C:\Windows\SysWOW64\net1.exe
            C:\Windows\system32\net1 start nethttpservice
            3⤵
              PID:3864
          • C:\Windows\SysWOW64\net.exe
            net start serviceupdater
            2⤵
            • Suspicious use of WriteProcessMemory
            PID:5092
            • C:\Windows\SysWOW64\net1.exe
              C:\Windows\system32\net1 start serviceupdater
              3⤵
                PID:2956
          • 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:952
          • C:\Windows\SysWOW64\netupdsrv.exe
            C:\Windows\SysWOW64\netupdsrv.exe
            1⤵
            • Executes dropped EXE
            PID:628

          Network

          MITRE ATT&CK Enterprise v6

          Replay Monitor

          Loading Replay Monitor...

          Downloads

          • C:\Users\Admin\AppData\Local\Temp\nss9906.tmp\System.dll

            Filesize

            11KB

            MD5

            c17103ae9072a06da581dec998343fc1

            SHA1

            b72148c6bdfaada8b8c3f950e610ee7cf1da1f8d

            SHA256

            dc58d8ad81cacb0c1ed72e33bff8f23ea40b5252b5bb55d393a0903e6819ae2f

            SHA512

            d32a71aaef18e993f28096d536e41c4d016850721b31171513ce28bbd805a54fd290b7c3e9d935f72e676a1acfb4f0dcc89d95040a0dd29f2b6975855c18986f

          • C:\Users\Admin\AppData\Local\Temp\nss9906.tmp\nsExec.dll

            Filesize

            6KB

            MD5

            acc2b699edfea5bf5aae45aba3a41e96

            SHA1

            d2accf4d494e43ceb2cff69abe4dd17147d29cc2

            SHA256

            168a974eaa3f588d759db3f47c1a9fdc3494ba1fa1a73a84e5e3b2a4d58abd7e

            SHA512

            e29ea10ada98c71a18273b04f44f385b120d4e8473e441ce5748cfa44a23648814f2656f429b85440157988c88de776c6ac008dc38bf09cbb746c230a46c69fe

          • C:\Users\Admin\AppData\Local\Temp\nss9906.tmp\nsExec.dll

            Filesize

            6KB

            MD5

            acc2b699edfea5bf5aae45aba3a41e96

            SHA1

            d2accf4d494e43ceb2cff69abe4dd17147d29cc2

            SHA256

            168a974eaa3f588d759db3f47c1a9fdc3494ba1fa1a73a84e5e3b2a4d58abd7e

            SHA512

            e29ea10ada98c71a18273b04f44f385b120d4e8473e441ce5748cfa44a23648814f2656f429b85440157988c88de776c6ac008dc38bf09cbb746c230a46c69fe

          • C:\Users\Admin\AppData\Local\Temp\nss9906.tmp\nsExec.dll

            Filesize

            6KB

            MD5

            acc2b699edfea5bf5aae45aba3a41e96

            SHA1

            d2accf4d494e43ceb2cff69abe4dd17147d29cc2

            SHA256

            168a974eaa3f588d759db3f47c1a9fdc3494ba1fa1a73a84e5e3b2a4d58abd7e

            SHA512

            e29ea10ada98c71a18273b04f44f385b120d4e8473e441ce5748cfa44a23648814f2656f429b85440157988c88de776c6ac008dc38bf09cbb746c230a46c69fe

          • C:\Users\Admin\AppData\Local\Temp\nss9906.tmp\nsExec.dll

            Filesize

            6KB

            MD5

            acc2b699edfea5bf5aae45aba3a41e96

            SHA1

            d2accf4d494e43ceb2cff69abe4dd17147d29cc2

            SHA256

            168a974eaa3f588d759db3f47c1a9fdc3494ba1fa1a73a84e5e3b2a4d58abd7e

            SHA512

            e29ea10ada98c71a18273b04f44f385b120d4e8473e441ce5748cfa44a23648814f2656f429b85440157988c88de776c6ac008dc38bf09cbb746c230a46c69fe

          • C:\Users\Admin\AppData\Local\Temp\nss9906.tmp\nsExec.dll

            Filesize

            6KB

            MD5

            acc2b699edfea5bf5aae45aba3a41e96

            SHA1

            d2accf4d494e43ceb2cff69abe4dd17147d29cc2

            SHA256

            168a974eaa3f588d759db3f47c1a9fdc3494ba1fa1a73a84e5e3b2a4d58abd7e

            SHA512

            e29ea10ada98c71a18273b04f44f385b120d4e8473e441ce5748cfa44a23648814f2656f429b85440157988c88de776c6ac008dc38bf09cbb746c230a46c69fe

          • C:\Users\Admin\AppData\Local\Temp\nss9906.tmp\nsExec.dll

            Filesize

            6KB

            MD5

            acc2b699edfea5bf5aae45aba3a41e96

            SHA1

            d2accf4d494e43ceb2cff69abe4dd17147d29cc2

            SHA256

            168a974eaa3f588d759db3f47c1a9fdc3494ba1fa1a73a84e5e3b2a4d58abd7e

            SHA512

            e29ea10ada98c71a18273b04f44f385b120d4e8473e441ce5748cfa44a23648814f2656f429b85440157988c88de776c6ac008dc38bf09cbb746c230a46c69fe

          • C:\Users\Admin\AppData\Local\Temp\nss9906.tmp\nsExec.dll

            Filesize

            6KB

            MD5

            acc2b699edfea5bf5aae45aba3a41e96

            SHA1

            d2accf4d494e43ceb2cff69abe4dd17147d29cc2

            SHA256

            168a974eaa3f588d759db3f47c1a9fdc3494ba1fa1a73a84e5e3b2a4d58abd7e

            SHA512

            e29ea10ada98c71a18273b04f44f385b120d4e8473e441ce5748cfa44a23648814f2656f429b85440157988c88de776c6ac008dc38bf09cbb746c230a46c69fe

          • C:\Users\Admin\AppData\Local\Temp\nss9906.tmp\nsExec.dll

            Filesize

            6KB

            MD5

            acc2b699edfea5bf5aae45aba3a41e96

            SHA1

            d2accf4d494e43ceb2cff69abe4dd17147d29cc2

            SHA256

            168a974eaa3f588d759db3f47c1a9fdc3494ba1fa1a73a84e5e3b2a4d58abd7e

            SHA512

            e29ea10ada98c71a18273b04f44f385b120d4e8473e441ce5748cfa44a23648814f2656f429b85440157988c88de776c6ac008dc38bf09cbb746c230a46c69fe

          • C:\Windows\SysWOW64\hfnapi.dll

            Filesize

            106KB

            MD5

            89b817b0280ae3c12977312aa3490826

            SHA1

            cf824698f965718110908c080a1211a77b79d0bb

            SHA256

            1c3bc746ef336ac35236bb8992629fcca090fdac5e64e0be55a0cef53921d6de

            SHA512

            1c750f3e5f0ac8565c99bafd185d70d7e16c904bfb5c878ae32c669ce864bdecadae1558b991b3f6ae8a70bb08d8f0a193230e16bf0daa8ed8c9dd8f14b3ed3b

          • C:\Windows\SysWOW64\hfnapi.dll

            Filesize

            106KB

            MD5

            89b817b0280ae3c12977312aa3490826

            SHA1

            cf824698f965718110908c080a1211a77b79d0bb

            SHA256

            1c3bc746ef336ac35236bb8992629fcca090fdac5e64e0be55a0cef53921d6de

            SHA512

            1c750f3e5f0ac8565c99bafd185d70d7e16c904bfb5c878ae32c669ce864bdecadae1558b991b3f6ae8a70bb08d8f0a193230e16bf0daa8ed8c9dd8f14b3ed3b

          • C:\Windows\SysWOW64\hfnapi.dll

            Filesize

            106KB

            MD5

            89b817b0280ae3c12977312aa3490826

            SHA1

            cf824698f965718110908c080a1211a77b79d0bb

            SHA256

            1c3bc746ef336ac35236bb8992629fcca090fdac5e64e0be55a0cef53921d6de

            SHA512

            1c750f3e5f0ac8565c99bafd185d70d7e16c904bfb5c878ae32c669ce864bdecadae1558b991b3f6ae8a70bb08d8f0a193230e16bf0daa8ed8c9dd8f14b3ed3b

          • C:\Windows\SysWOW64\hfnapi.dll

            Filesize

            106KB

            MD5

            89b817b0280ae3c12977312aa3490826

            SHA1

            cf824698f965718110908c080a1211a77b79d0bb

            SHA256

            1c3bc746ef336ac35236bb8992629fcca090fdac5e64e0be55a0cef53921d6de

            SHA512

            1c750f3e5f0ac8565c99bafd185d70d7e16c904bfb5c878ae32c669ce864bdecadae1558b991b3f6ae8a70bb08d8f0a193230e16bf0daa8ed8c9dd8f14b3ed3b

          • C:\Windows\SysWOW64\hfpapi.dll

            Filesize

            244KB

            MD5

            582ce5de65d2391f3263e3d8fac0d711

            SHA1

            0824e30912323d4749cb159f7c8e542752f50149

            SHA256

            3fa02dd7bc502549ceec9fb3bd9cbd7448ed4321912d0e40cc0a18635f7b9180

            SHA512

            8647ff89504d7cbd479ee655edc33b2b6d41b9c4f2f24f37fa04ff56a061d381f1f004419c1fa6c526f74c7c4dcb8f334f034223602812540c857692dd7c77e6

          • C:\Windows\SysWOW64\hfpapi.dll

            Filesize

            244KB

            MD5

            582ce5de65d2391f3263e3d8fac0d711

            SHA1

            0824e30912323d4749cb159f7c8e542752f50149

            SHA256

            3fa02dd7bc502549ceec9fb3bd9cbd7448ed4321912d0e40cc0a18635f7b9180

            SHA512

            8647ff89504d7cbd479ee655edc33b2b6d41b9c4f2f24f37fa04ff56a061d381f1f004419c1fa6c526f74c7c4dcb8f334f034223602812540c857692dd7c77e6

          • C:\Windows\SysWOW64\hfpapi.dll

            Filesize

            244KB

            MD5

            582ce5de65d2391f3263e3d8fac0d711

            SHA1

            0824e30912323d4749cb159f7c8e542752f50149

            SHA256

            3fa02dd7bc502549ceec9fb3bd9cbd7448ed4321912d0e40cc0a18635f7b9180

            SHA512

            8647ff89504d7cbd479ee655edc33b2b6d41b9c4f2f24f37fa04ff56a061d381f1f004419c1fa6c526f74c7c4dcb8f334f034223602812540c857692dd7c77e6

          • C:\Windows\SysWOW64\installd.exe

            Filesize

            108KB

            MD5

            1df28bbecc454703ed16cb7c4a6971f3

            SHA1

            3d87fb2b8ed94a40f08eb840e8a3d87a03917329

            SHA256

            6ccba6bc1ec79af55a5fcc304a3282b8c1c63d8388a5745a99f294f20eb3bfd8

            SHA512

            1967e76b9cfa48deb0e93bc460cd2615e0e4c105dd71bb61f65845139ffe01c09623ff5ca3182919a5cbfc601994262379855794e7920f6c14a43e02c4d2bdda

          • C:\Windows\SysWOW64\installd.exe

            Filesize

            108KB

            MD5

            1df28bbecc454703ed16cb7c4a6971f3

            SHA1

            3d87fb2b8ed94a40f08eb840e8a3d87a03917329

            SHA256

            6ccba6bc1ec79af55a5fcc304a3282b8c1c63d8388a5745a99f294f20eb3bfd8

            SHA512

            1967e76b9cfa48deb0e93bc460cd2615e0e4c105dd71bb61f65845139ffe01c09623ff5ca3182919a5cbfc601994262379855794e7920f6c14a43e02c4d2bdda

          • C:\Windows\SysWOW64\nethtsrv.exe

            Filesize

            176KB

            MD5

            2e5661a0113ceba0d76e40f71e165c33

            SHA1

            85a958ee23aa7e1c49459e7e1ad98382fb7574d2

            SHA256

            2014034de67288af726c942c61ec2dcceef88f71adda0de16be43273bcd6238a

            SHA512

            f7de1cc9ba084c39562b1e4a63ee149c4866b9c1e2bdec3b7011c438781f1214ffa408a25b2b4c609c1194bb6ab457f1d8b3ae2b99b30eb4391ccf31c395521c

          • C:\Windows\SysWOW64\nethtsrv.exe

            Filesize

            176KB

            MD5

            2e5661a0113ceba0d76e40f71e165c33

            SHA1

            85a958ee23aa7e1c49459e7e1ad98382fb7574d2

            SHA256

            2014034de67288af726c942c61ec2dcceef88f71adda0de16be43273bcd6238a

            SHA512

            f7de1cc9ba084c39562b1e4a63ee149c4866b9c1e2bdec3b7011c438781f1214ffa408a25b2b4c609c1194bb6ab457f1d8b3ae2b99b30eb4391ccf31c395521c

          • C:\Windows\SysWOW64\nethtsrv.exe

            Filesize

            176KB

            MD5

            2e5661a0113ceba0d76e40f71e165c33

            SHA1

            85a958ee23aa7e1c49459e7e1ad98382fb7574d2

            SHA256

            2014034de67288af726c942c61ec2dcceef88f71adda0de16be43273bcd6238a

            SHA512

            f7de1cc9ba084c39562b1e4a63ee149c4866b9c1e2bdec3b7011c438781f1214ffa408a25b2b4c609c1194bb6ab457f1d8b3ae2b99b30eb4391ccf31c395521c

          • C:\Windows\SysWOW64\netupdsrv.exe

            Filesize

            158KB

            MD5

            7855f6ac70f059051cf1c19c310025cf

            SHA1

            7a0d579295a94f756ae57a990262a84d54e3eca2

            SHA256

            8a7d32845d08b78fd3e03b0302bde04f352c0c6197496ec553d35bb98726c79b

            SHA512

            3d3c81d4307bf205cad20b4fd0c3b3e4bbd20fe5745a11afa8b556e3b17b756d80e57f4e9da3ab42b5143e9eaa7f4d19ace26333416b9a63c1f75018217b768d

          • C:\Windows\SysWOW64\netupdsrv.exe

            Filesize

            158KB

            MD5

            7855f6ac70f059051cf1c19c310025cf

            SHA1

            7a0d579295a94f756ae57a990262a84d54e3eca2

            SHA256

            8a7d32845d08b78fd3e03b0302bde04f352c0c6197496ec553d35bb98726c79b

            SHA512

            3d3c81d4307bf205cad20b4fd0c3b3e4bbd20fe5745a11afa8b556e3b17b756d80e57f4e9da3ab42b5143e9eaa7f4d19ace26333416b9a63c1f75018217b768d

          • C:\Windows\SysWOW64\netupdsrv.exe

            Filesize

            158KB

            MD5

            7855f6ac70f059051cf1c19c310025cf

            SHA1

            7a0d579295a94f756ae57a990262a84d54e3eca2

            SHA256

            8a7d32845d08b78fd3e03b0302bde04f352c0c6197496ec553d35bb98726c79b

            SHA512

            3d3c81d4307bf205cad20b4fd0c3b3e4bbd20fe5745a11afa8b556e3b17b756d80e57f4e9da3ab42b5143e9eaa7f4d19ace26333416b9a63c1f75018217b768d

          • memory/520-142-0x0000000000000000-mapping.dmp

          • memory/820-132-0x0000000000360000-0x00000000007BE000-memory.dmp

            Filesize

            4.4MB

          • memory/820-168-0x0000000000360000-0x00000000007BE000-memory.dmp

            Filesize

            4.4MB

          • memory/1472-147-0x0000000000000000-mapping.dmp

          • memory/2196-140-0x0000000000000000-mapping.dmp

          • memory/2436-153-0x0000000000000000-mapping.dmp

          • memory/2956-166-0x0000000000000000-mapping.dmp

          • memory/3628-141-0x0000000000000000-mapping.dmp

          • memory/3864-159-0x0000000000000000-mapping.dmp

          • memory/4068-136-0x0000000000000000-mapping.dmp

          • memory/4908-137-0x0000000000000000-mapping.dmp

          • memory/4980-158-0x0000000000000000-mapping.dmp

          • memory/5092-165-0x0000000000000000-mapping.dmp