Analysis

  • max time kernel
    85s
  • max time network
    148s
  • 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 10:25

General

  • Target

    5ea0315e37ce8441b4f9c3d83d5ad1d140357de09cf3a10040ca3ded7b720357.exe

  • Size

    602KB

  • MD5

    3ed2d6c0fe4796381e609c97d01b1f0a

  • SHA1

    70dcd8a572564f012ecfaa619ca03b1910b2ecd4

  • SHA256

    5ea0315e37ce8441b4f9c3d83d5ad1d140357de09cf3a10040ca3ded7b720357

  • SHA512

    16a055fa9aa7b429ff67678a02e0be9fb816ed049c6a6953da6360e9beab7a4c2aa2ab0189ed56f2c535fc2ddbfcdb3d38c8ae6c6922033fda73fa4fb486ad7c

  • SSDEEP

    12288:EIny5DYTkIJ4o25yLooEepaaltUVMVoXzei0ywQyKF:iUTkKb48ooEcaCsMGXzeIwQnF

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\5ea0315e37ce8441b4f9c3d83d5ad1d140357de09cf3a10040ca3ded7b720357.exe
    "C:\Users\Admin\AppData\Local\Temp\5ea0315e37ce8441b4f9c3d83d5ad1d140357de09cf3a10040ca3ded7b720357.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:1092
    • C:\Windows\SysWOW64\net.exe
      net stop nethttpservice
      2⤵
      • Suspicious use of WriteProcessMemory
      PID:808
      • C:\Windows\SysWOW64\net1.exe
        C:\Windows\system32\net1 stop nethttpservice
        3⤵
          PID:5068
      • C:\Windows\SysWOW64\net.exe
        net stop serviceupdater
        2⤵
        • Suspicious use of WriteProcessMemory
        PID:4964
        • C:\Windows\SysWOW64\net1.exe
          C:\Windows\system32\net1 stop serviceupdater
          3⤵
            PID:4840
        • C:\Windows\SysWOW64\installd.exe
          "C:\Windows\system32\installd.exe" nethfdrv
          2⤵
          • Executes dropped EXE
          • Loads dropped DLL
          PID:1632
        • C:\Windows\SysWOW64\nethtsrv.exe
          "C:\Windows\system32\nethtsrv.exe" -nfdi
          2⤵
          • Executes dropped EXE
          • Loads dropped DLL
          PID:2276
        • C:\Windows\SysWOW64\netupdsrv.exe
          "C:\Windows\system32\netupdsrv.exe" -nfdi
          2⤵
          • Executes dropped EXE
          PID:1752
        • C:\Windows\SysWOW64\net.exe
          net start nethttpservice
          2⤵
          • Suspicious use of WriteProcessMemory
          PID:228
          • C:\Windows\SysWOW64\net1.exe
            C:\Windows\system32\net1 start nethttpservice
            3⤵
              PID:1308
          • C:\Windows\SysWOW64\net.exe
            net start serviceupdater
            2⤵
            • Suspicious use of WriteProcessMemory
            PID:4264
            • C:\Windows\SysWOW64\net1.exe
              C:\Windows\system32\net1 start serviceupdater
              3⤵
                PID:3836
          • 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:1428
          • C:\Windows\SysWOW64\netupdsrv.exe
            C:\Windows\SysWOW64\netupdsrv.exe
            1⤵
            • Executes dropped EXE
            PID:4052

          Network

          MITRE ATT&CK Matrix ATT&CK v6

          Discovery

          Query Registry

          1
          T1012

          System Information Discovery

          1
          T1082

          Replay Monitor

          Loading Replay Monitor...

          Downloads

          • C:\Users\Admin\AppData\Local\Temp\nsfC877.tmp\System.dll
            Filesize

            11KB

            MD5

            c17103ae9072a06da581dec998343fc1

            SHA1

            b72148c6bdfaada8b8c3f950e610ee7cf1da1f8d

            SHA256

            dc58d8ad81cacb0c1ed72e33bff8f23ea40b5252b5bb55d393a0903e6819ae2f

            SHA512

            d32a71aaef18e993f28096d536e41c4d016850721b31171513ce28bbd805a54fd290b7c3e9d935f72e676a1acfb4f0dcc89d95040a0dd29f2b6975855c18986f

          • C:\Users\Admin\AppData\Local\Temp\nsfC877.tmp\nsExec.dll
            Filesize

            6KB

            MD5

            acc2b699edfea5bf5aae45aba3a41e96

            SHA1

            d2accf4d494e43ceb2cff69abe4dd17147d29cc2

            SHA256

            168a974eaa3f588d759db3f47c1a9fdc3494ba1fa1a73a84e5e3b2a4d58abd7e

            SHA512

            e29ea10ada98c71a18273b04f44f385b120d4e8473e441ce5748cfa44a23648814f2656f429b85440157988c88de776c6ac008dc38bf09cbb746c230a46c69fe

          • C:\Users\Admin\AppData\Local\Temp\nsfC877.tmp\nsExec.dll
            Filesize

            6KB

            MD5

            acc2b699edfea5bf5aae45aba3a41e96

            SHA1

            d2accf4d494e43ceb2cff69abe4dd17147d29cc2

            SHA256

            168a974eaa3f588d759db3f47c1a9fdc3494ba1fa1a73a84e5e3b2a4d58abd7e

            SHA512

            e29ea10ada98c71a18273b04f44f385b120d4e8473e441ce5748cfa44a23648814f2656f429b85440157988c88de776c6ac008dc38bf09cbb746c230a46c69fe

          • C:\Users\Admin\AppData\Local\Temp\nsfC877.tmp\nsExec.dll
            Filesize

            6KB

            MD5

            acc2b699edfea5bf5aae45aba3a41e96

            SHA1

            d2accf4d494e43ceb2cff69abe4dd17147d29cc2

            SHA256

            168a974eaa3f588d759db3f47c1a9fdc3494ba1fa1a73a84e5e3b2a4d58abd7e

            SHA512

            e29ea10ada98c71a18273b04f44f385b120d4e8473e441ce5748cfa44a23648814f2656f429b85440157988c88de776c6ac008dc38bf09cbb746c230a46c69fe

          • C:\Users\Admin\AppData\Local\Temp\nsfC877.tmp\nsExec.dll
            Filesize

            6KB

            MD5

            acc2b699edfea5bf5aae45aba3a41e96

            SHA1

            d2accf4d494e43ceb2cff69abe4dd17147d29cc2

            SHA256

            168a974eaa3f588d759db3f47c1a9fdc3494ba1fa1a73a84e5e3b2a4d58abd7e

            SHA512

            e29ea10ada98c71a18273b04f44f385b120d4e8473e441ce5748cfa44a23648814f2656f429b85440157988c88de776c6ac008dc38bf09cbb746c230a46c69fe

          • C:\Users\Admin\AppData\Local\Temp\nsfC877.tmp\nsExec.dll
            Filesize

            6KB

            MD5

            acc2b699edfea5bf5aae45aba3a41e96

            SHA1

            d2accf4d494e43ceb2cff69abe4dd17147d29cc2

            SHA256

            168a974eaa3f588d759db3f47c1a9fdc3494ba1fa1a73a84e5e3b2a4d58abd7e

            SHA512

            e29ea10ada98c71a18273b04f44f385b120d4e8473e441ce5748cfa44a23648814f2656f429b85440157988c88de776c6ac008dc38bf09cbb746c230a46c69fe

          • C:\Users\Admin\AppData\Local\Temp\nsfC877.tmp\nsExec.dll
            Filesize

            6KB

            MD5

            acc2b699edfea5bf5aae45aba3a41e96

            SHA1

            d2accf4d494e43ceb2cff69abe4dd17147d29cc2

            SHA256

            168a974eaa3f588d759db3f47c1a9fdc3494ba1fa1a73a84e5e3b2a4d58abd7e

            SHA512

            e29ea10ada98c71a18273b04f44f385b120d4e8473e441ce5748cfa44a23648814f2656f429b85440157988c88de776c6ac008dc38bf09cbb746c230a46c69fe

          • C:\Users\Admin\AppData\Local\Temp\nsfC877.tmp\nsExec.dll
            Filesize

            6KB

            MD5

            acc2b699edfea5bf5aae45aba3a41e96

            SHA1

            d2accf4d494e43ceb2cff69abe4dd17147d29cc2

            SHA256

            168a974eaa3f588d759db3f47c1a9fdc3494ba1fa1a73a84e5e3b2a4d58abd7e

            SHA512

            e29ea10ada98c71a18273b04f44f385b120d4e8473e441ce5748cfa44a23648814f2656f429b85440157988c88de776c6ac008dc38bf09cbb746c230a46c69fe

          • C:\Users\Admin\AppData\Local\Temp\nsfC877.tmp\nsExec.dll
            Filesize

            6KB

            MD5

            acc2b699edfea5bf5aae45aba3a41e96

            SHA1

            d2accf4d494e43ceb2cff69abe4dd17147d29cc2

            SHA256

            168a974eaa3f588d759db3f47c1a9fdc3494ba1fa1a73a84e5e3b2a4d58abd7e

            SHA512

            e29ea10ada98c71a18273b04f44f385b120d4e8473e441ce5748cfa44a23648814f2656f429b85440157988c88de776c6ac008dc38bf09cbb746c230a46c69fe

          • C:\Windows\SysWOW64\hfnapi.dll
            Filesize

            106KB

            MD5

            fdf90329dd7a62cf977a5383937a1a2b

            SHA1

            dd6c1565c2cebbd63d06cc5f77f18cb02f70aa78

            SHA256

            4280ae8e1b00a71c655515c56aea7013508e1e436edc3d43741cd16f0fd50438

            SHA512

            d6a01141794e7f85e46a45f91823580de6bedd1b03ab80ac30c2bd35fd83e1d51a98754657ce80559628f1506412f752c3087cc34e8b8462994c73d09e48917f

          • C:\Windows\SysWOW64\hfnapi.dll
            Filesize

            106KB

            MD5

            fdf90329dd7a62cf977a5383937a1a2b

            SHA1

            dd6c1565c2cebbd63d06cc5f77f18cb02f70aa78

            SHA256

            4280ae8e1b00a71c655515c56aea7013508e1e436edc3d43741cd16f0fd50438

            SHA512

            d6a01141794e7f85e46a45f91823580de6bedd1b03ab80ac30c2bd35fd83e1d51a98754657ce80559628f1506412f752c3087cc34e8b8462994c73d09e48917f

          • C:\Windows\SysWOW64\hfnapi.dll
            Filesize

            106KB

            MD5

            fdf90329dd7a62cf977a5383937a1a2b

            SHA1

            dd6c1565c2cebbd63d06cc5f77f18cb02f70aa78

            SHA256

            4280ae8e1b00a71c655515c56aea7013508e1e436edc3d43741cd16f0fd50438

            SHA512

            d6a01141794e7f85e46a45f91823580de6bedd1b03ab80ac30c2bd35fd83e1d51a98754657ce80559628f1506412f752c3087cc34e8b8462994c73d09e48917f

          • C:\Windows\SysWOW64\hfnapi.dll
            Filesize

            106KB

            MD5

            fdf90329dd7a62cf977a5383937a1a2b

            SHA1

            dd6c1565c2cebbd63d06cc5f77f18cb02f70aa78

            SHA256

            4280ae8e1b00a71c655515c56aea7013508e1e436edc3d43741cd16f0fd50438

            SHA512

            d6a01141794e7f85e46a45f91823580de6bedd1b03ab80ac30c2bd35fd83e1d51a98754657ce80559628f1506412f752c3087cc34e8b8462994c73d09e48917f

          • C:\Windows\SysWOW64\hfpapi.dll
            Filesize

            244KB

            MD5

            2bcc560dc2e920b3f018b117fa12fb21

            SHA1

            b3ecf9cea64c99209f616dd251e5f41cc03c3155

            SHA256

            1316f43b1f06f65d17f0851b24c536475e07f3a95abd1bdfae20ebf481175266

            SHA512

            8ee69e30a5b94c71d9233abc1c64b8236363f6710d3677f5318cbc99b71ea26d5eafbbb1ee522821b160d5fa9b7f3312697f2488b9228115788c7640f7a44665

          • C:\Windows\SysWOW64\hfpapi.dll
            Filesize

            244KB

            MD5

            2bcc560dc2e920b3f018b117fa12fb21

            SHA1

            b3ecf9cea64c99209f616dd251e5f41cc03c3155

            SHA256

            1316f43b1f06f65d17f0851b24c536475e07f3a95abd1bdfae20ebf481175266

            SHA512

            8ee69e30a5b94c71d9233abc1c64b8236363f6710d3677f5318cbc99b71ea26d5eafbbb1ee522821b160d5fa9b7f3312697f2488b9228115788c7640f7a44665

          • C:\Windows\SysWOW64\hfpapi.dll
            Filesize

            244KB

            MD5

            2bcc560dc2e920b3f018b117fa12fb21

            SHA1

            b3ecf9cea64c99209f616dd251e5f41cc03c3155

            SHA256

            1316f43b1f06f65d17f0851b24c536475e07f3a95abd1bdfae20ebf481175266

            SHA512

            8ee69e30a5b94c71d9233abc1c64b8236363f6710d3677f5318cbc99b71ea26d5eafbbb1ee522821b160d5fa9b7f3312697f2488b9228115788c7640f7a44665

          • C:\Windows\SysWOW64\installd.exe
            Filesize

            108KB

            MD5

            2449c4d57052062e7ed78810925ae8a8

            SHA1

            a1257884efedf456142073161ce7f66f0fcd4318

            SHA256

            d24c4e5807c8baa1acbcb9465b5bf9d2b1c895b852433197299ab8bbe9fa9b95

            SHA512

            d3bdc99e085bea863d5cdc11c146544a42af529dac7f82dfb4ba2ce63bd8acda226261c042efd9e77988429b9eda47de3ea30bb6ffcdecd4c07c666a57f6dec9

          • C:\Windows\SysWOW64\installd.exe
            Filesize

            108KB

            MD5

            2449c4d57052062e7ed78810925ae8a8

            SHA1

            a1257884efedf456142073161ce7f66f0fcd4318

            SHA256

            d24c4e5807c8baa1acbcb9465b5bf9d2b1c895b852433197299ab8bbe9fa9b95

            SHA512

            d3bdc99e085bea863d5cdc11c146544a42af529dac7f82dfb4ba2ce63bd8acda226261c042efd9e77988429b9eda47de3ea30bb6ffcdecd4c07c666a57f6dec9

          • C:\Windows\SysWOW64\nethtsrv.exe
            Filesize

            176KB

            MD5

            0ff2b9b2a8ee08d5d3ef70d15ef8e4df

            SHA1

            281a85dce7242151c981eeabd268f7cbbc6efcac

            SHA256

            3d70c9f040c4c74881cf80dc9b4932fd263f2f0e0e01fa70616d6a55b5a37f7c

            SHA512

            5bb0e8d9a9f489218725a6b48519c08c6eafa0a1693f22aaf7e517d13022f000e5bb0b99c6484a6751dcda5b8a69d77d864d682fc8ca38724082551107978daf

          • C:\Windows\SysWOW64\nethtsrv.exe
            Filesize

            176KB

            MD5

            0ff2b9b2a8ee08d5d3ef70d15ef8e4df

            SHA1

            281a85dce7242151c981eeabd268f7cbbc6efcac

            SHA256

            3d70c9f040c4c74881cf80dc9b4932fd263f2f0e0e01fa70616d6a55b5a37f7c

            SHA512

            5bb0e8d9a9f489218725a6b48519c08c6eafa0a1693f22aaf7e517d13022f000e5bb0b99c6484a6751dcda5b8a69d77d864d682fc8ca38724082551107978daf

          • C:\Windows\SysWOW64\nethtsrv.exe
            Filesize

            176KB

            MD5

            0ff2b9b2a8ee08d5d3ef70d15ef8e4df

            SHA1

            281a85dce7242151c981eeabd268f7cbbc6efcac

            SHA256

            3d70c9f040c4c74881cf80dc9b4932fd263f2f0e0e01fa70616d6a55b5a37f7c

            SHA512

            5bb0e8d9a9f489218725a6b48519c08c6eafa0a1693f22aaf7e517d13022f000e5bb0b99c6484a6751dcda5b8a69d77d864d682fc8ca38724082551107978daf

          • C:\Windows\SysWOW64\netupdsrv.exe
            Filesize

            159KB

            MD5

            71fa17366a97851552610c15f63ad7f3

            SHA1

            dc2ce5b8cd09bcca97f313b0b809d4b777eb6343

            SHA256

            127e4349ee12575188f3621572328d60d94753fde04aa335c2179f04f56af66d

            SHA512

            a875871be2fadf47346b2f9c7244160964c149b33b4b9ca0a7050012e3c86520c0e7e9b9614df0cda4f324e23b8abd89450925f50508e488be2366668a19894c

          • C:\Windows\SysWOW64\netupdsrv.exe
            Filesize

            159KB

            MD5

            71fa17366a97851552610c15f63ad7f3

            SHA1

            dc2ce5b8cd09bcca97f313b0b809d4b777eb6343

            SHA256

            127e4349ee12575188f3621572328d60d94753fde04aa335c2179f04f56af66d

            SHA512

            a875871be2fadf47346b2f9c7244160964c149b33b4b9ca0a7050012e3c86520c0e7e9b9614df0cda4f324e23b8abd89450925f50508e488be2366668a19894c

          • C:\Windows\SysWOW64\netupdsrv.exe
            Filesize

            159KB

            MD5

            71fa17366a97851552610c15f63ad7f3

            SHA1

            dc2ce5b8cd09bcca97f313b0b809d4b777eb6343

            SHA256

            127e4349ee12575188f3621572328d60d94753fde04aa335c2179f04f56af66d

            SHA512

            a875871be2fadf47346b2f9c7244160964c149b33b4b9ca0a7050012e3c86520c0e7e9b9614df0cda4f324e23b8abd89450925f50508e488be2366668a19894c

          • memory/228-158-0x0000000000000000-mapping.dmp
          • memory/808-136-0x0000000000000000-mapping.dmp
          • memory/1092-168-0x0000000000360000-0x00000000007BE000-memory.dmp
            Filesize

            4.4MB

          • memory/1092-132-0x0000000000360000-0x00000000007BE000-memory.dmp
            Filesize

            4.4MB

          • memory/1308-159-0x0000000000000000-mapping.dmp
          • memory/1632-142-0x0000000000000000-mapping.dmp
          • memory/1752-153-0x0000000000000000-mapping.dmp
          • memory/2276-147-0x0000000000000000-mapping.dmp
          • memory/3836-166-0x0000000000000000-mapping.dmp
          • memory/4264-165-0x0000000000000000-mapping.dmp
          • memory/4840-141-0x0000000000000000-mapping.dmp
          • memory/4964-140-0x0000000000000000-mapping.dmp
          • memory/5068-137-0x0000000000000000-mapping.dmp