Analysis

  • max time kernel
    155s
  • max time network
    192s
  • 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

    712b19a8560f54fd37b9043520ef1e07f8e50782bc5d7e1e07c8dfc486a99b4d.exe

  • Size

    601KB

  • MD5

    566ef4bce96e0e599e3e92f35a1506bf

  • SHA1

    b1f8d0e14f93d1d5cbe46e9980c4b4558fcf0853

  • SHA256

    712b19a8560f54fd37b9043520ef1e07f8e50782bc5d7e1e07c8dfc486a99b4d

  • SHA512

    e8521000a80046e1550e60dc4baf7b3f2115fb8ffa9bb66a5cded8f5b629646e506cdbe7048e693db4ffbb3d954797dd1fd0d38bc14929d5d770a382c45cd2b9

  • SSDEEP

    12288:vIny5DYTU4JX/xpl1QHJFcnWPKrgxt31EstYWtus/:3UThTRQPcnWPDWs6Wks/

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\712b19a8560f54fd37b9043520ef1e07f8e50782bc5d7e1e07c8dfc486a99b4d.exe
    "C:\Users\Admin\AppData\Local\Temp\712b19a8560f54fd37b9043520ef1e07f8e50782bc5d7e1e07c8dfc486a99b4d.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:864
    • C:\Windows\SysWOW64\net.exe
      net stop nethttpservice
      2⤵
      • Suspicious use of WriteProcessMemory
      PID:1196
      • C:\Windows\SysWOW64\net1.exe
        C:\Windows\system32\net1 stop nethttpservice
        3⤵
          PID:3476
      • C:\Windows\SysWOW64\net.exe
        net stop serviceupdater
        2⤵
        • Suspicious use of WriteProcessMemory
        PID:2160
        • C:\Windows\SysWOW64\net1.exe
          C:\Windows\system32\net1 stop serviceupdater
          3⤵
            PID:4156
        • C:\Windows\SysWOW64\installd.exe
          "C:\Windows\system32\installd.exe" nethfdrv
          2⤵
          • Executes dropped EXE
          • Loads dropped DLL
          PID:2196
        • C:\Windows\SysWOW64\nethtsrv.exe
          "C:\Windows\system32\nethtsrv.exe" -nfdi
          2⤵
          • Executes dropped EXE
          • Loads dropped DLL
          PID:4900
        • C:\Windows\SysWOW64\netupdsrv.exe
          "C:\Windows\system32\netupdsrv.exe" -nfdi
          2⤵
          • Executes dropped EXE
          PID:1256
        • C:\Windows\SysWOW64\net.exe
          net start nethttpservice
          2⤵
          • Suspicious use of WriteProcessMemory
          PID:3136
          • C:\Windows\SysWOW64\net1.exe
            C:\Windows\system32\net1 start nethttpservice
            3⤵
              PID:4304
          • C:\Windows\SysWOW64\net.exe
            net start serviceupdater
            2⤵
            • Suspicious use of WriteProcessMemory
            PID:3796
            • C:\Windows\SysWOW64\net1.exe
              C:\Windows\system32\net1 start serviceupdater
              3⤵
                PID:4712
          • 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:3048
          • C:\Windows\SysWOW64\netupdsrv.exe
            C:\Windows\SysWOW64\netupdsrv.exe
            1⤵
            • Executes dropped EXE
            PID:1672

          Network

          MITRE ATT&CK Enterprise v6

          Replay Monitor

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          Downloads

          • C:\Users\Admin\AppData\Local\Temp\nsi8D9C.tmp\System.dll

            Filesize

            11KB

            MD5

            c17103ae9072a06da581dec998343fc1

            SHA1

            b72148c6bdfaada8b8c3f950e610ee7cf1da1f8d

            SHA256

            dc58d8ad81cacb0c1ed72e33bff8f23ea40b5252b5bb55d393a0903e6819ae2f

            SHA512

            d32a71aaef18e993f28096d536e41c4d016850721b31171513ce28bbd805a54fd290b7c3e9d935f72e676a1acfb4f0dcc89d95040a0dd29f2b6975855c18986f

          • C:\Users\Admin\AppData\Local\Temp\nsi8D9C.tmp\nsExec.dll

            Filesize

            6KB

            MD5

            acc2b699edfea5bf5aae45aba3a41e96

            SHA1

            d2accf4d494e43ceb2cff69abe4dd17147d29cc2

            SHA256

            168a974eaa3f588d759db3f47c1a9fdc3494ba1fa1a73a84e5e3b2a4d58abd7e

            SHA512

            e29ea10ada98c71a18273b04f44f385b120d4e8473e441ce5748cfa44a23648814f2656f429b85440157988c88de776c6ac008dc38bf09cbb746c230a46c69fe

          • C:\Users\Admin\AppData\Local\Temp\nsi8D9C.tmp\nsExec.dll

            Filesize

            6KB

            MD5

            acc2b699edfea5bf5aae45aba3a41e96

            SHA1

            d2accf4d494e43ceb2cff69abe4dd17147d29cc2

            SHA256

            168a974eaa3f588d759db3f47c1a9fdc3494ba1fa1a73a84e5e3b2a4d58abd7e

            SHA512

            e29ea10ada98c71a18273b04f44f385b120d4e8473e441ce5748cfa44a23648814f2656f429b85440157988c88de776c6ac008dc38bf09cbb746c230a46c69fe

          • C:\Users\Admin\AppData\Local\Temp\nsi8D9C.tmp\nsExec.dll

            Filesize

            6KB

            MD5

            acc2b699edfea5bf5aae45aba3a41e96

            SHA1

            d2accf4d494e43ceb2cff69abe4dd17147d29cc2

            SHA256

            168a974eaa3f588d759db3f47c1a9fdc3494ba1fa1a73a84e5e3b2a4d58abd7e

            SHA512

            e29ea10ada98c71a18273b04f44f385b120d4e8473e441ce5748cfa44a23648814f2656f429b85440157988c88de776c6ac008dc38bf09cbb746c230a46c69fe

          • C:\Users\Admin\AppData\Local\Temp\nsi8D9C.tmp\nsExec.dll

            Filesize

            6KB

            MD5

            acc2b699edfea5bf5aae45aba3a41e96

            SHA1

            d2accf4d494e43ceb2cff69abe4dd17147d29cc2

            SHA256

            168a974eaa3f588d759db3f47c1a9fdc3494ba1fa1a73a84e5e3b2a4d58abd7e

            SHA512

            e29ea10ada98c71a18273b04f44f385b120d4e8473e441ce5748cfa44a23648814f2656f429b85440157988c88de776c6ac008dc38bf09cbb746c230a46c69fe

          • C:\Users\Admin\AppData\Local\Temp\nsi8D9C.tmp\nsExec.dll

            Filesize

            6KB

            MD5

            acc2b699edfea5bf5aae45aba3a41e96

            SHA1

            d2accf4d494e43ceb2cff69abe4dd17147d29cc2

            SHA256

            168a974eaa3f588d759db3f47c1a9fdc3494ba1fa1a73a84e5e3b2a4d58abd7e

            SHA512

            e29ea10ada98c71a18273b04f44f385b120d4e8473e441ce5748cfa44a23648814f2656f429b85440157988c88de776c6ac008dc38bf09cbb746c230a46c69fe

          • C:\Users\Admin\AppData\Local\Temp\nsi8D9C.tmp\nsExec.dll

            Filesize

            6KB

            MD5

            acc2b699edfea5bf5aae45aba3a41e96

            SHA1

            d2accf4d494e43ceb2cff69abe4dd17147d29cc2

            SHA256

            168a974eaa3f588d759db3f47c1a9fdc3494ba1fa1a73a84e5e3b2a4d58abd7e

            SHA512

            e29ea10ada98c71a18273b04f44f385b120d4e8473e441ce5748cfa44a23648814f2656f429b85440157988c88de776c6ac008dc38bf09cbb746c230a46c69fe

          • C:\Users\Admin\AppData\Local\Temp\nsi8D9C.tmp\nsExec.dll

            Filesize

            6KB

            MD5

            acc2b699edfea5bf5aae45aba3a41e96

            SHA1

            d2accf4d494e43ceb2cff69abe4dd17147d29cc2

            SHA256

            168a974eaa3f588d759db3f47c1a9fdc3494ba1fa1a73a84e5e3b2a4d58abd7e

            SHA512

            e29ea10ada98c71a18273b04f44f385b120d4e8473e441ce5748cfa44a23648814f2656f429b85440157988c88de776c6ac008dc38bf09cbb746c230a46c69fe

          • C:\Users\Admin\AppData\Local\Temp\nsi8D9C.tmp\nsExec.dll

            Filesize

            6KB

            MD5

            acc2b699edfea5bf5aae45aba3a41e96

            SHA1

            d2accf4d494e43ceb2cff69abe4dd17147d29cc2

            SHA256

            168a974eaa3f588d759db3f47c1a9fdc3494ba1fa1a73a84e5e3b2a4d58abd7e

            SHA512

            e29ea10ada98c71a18273b04f44f385b120d4e8473e441ce5748cfa44a23648814f2656f429b85440157988c88de776c6ac008dc38bf09cbb746c230a46c69fe

          • C:\Windows\SysWOW64\hfnapi.dll

            Filesize

            106KB

            MD5

            4e7964bb86b7fb2d1caffe08ea47e877

            SHA1

            993706245416bf620a2344ce5228a4c197224823

            SHA256

            196dfc66406af5b325321838a1a38c479a9cd78cdf94a54af8c30d9d4977073a

            SHA512

            84bb738fe8fa53e5c2e4ba13db096a02e49e4549a00c640fb71f56430d2f7e4dbef315551243fdb9aa9f8657636d7a26e0fd78dfdbbd102dfe19cbacb8d6b3fc

          • C:\Windows\SysWOW64\hfnapi.dll

            Filesize

            106KB

            MD5

            4e7964bb86b7fb2d1caffe08ea47e877

            SHA1

            993706245416bf620a2344ce5228a4c197224823

            SHA256

            196dfc66406af5b325321838a1a38c479a9cd78cdf94a54af8c30d9d4977073a

            SHA512

            84bb738fe8fa53e5c2e4ba13db096a02e49e4549a00c640fb71f56430d2f7e4dbef315551243fdb9aa9f8657636d7a26e0fd78dfdbbd102dfe19cbacb8d6b3fc

          • C:\Windows\SysWOW64\hfnapi.dll

            Filesize

            106KB

            MD5

            4e7964bb86b7fb2d1caffe08ea47e877

            SHA1

            993706245416bf620a2344ce5228a4c197224823

            SHA256

            196dfc66406af5b325321838a1a38c479a9cd78cdf94a54af8c30d9d4977073a

            SHA512

            84bb738fe8fa53e5c2e4ba13db096a02e49e4549a00c640fb71f56430d2f7e4dbef315551243fdb9aa9f8657636d7a26e0fd78dfdbbd102dfe19cbacb8d6b3fc

          • C:\Windows\SysWOW64\hfnapi.dll

            Filesize

            106KB

            MD5

            4e7964bb86b7fb2d1caffe08ea47e877

            SHA1

            993706245416bf620a2344ce5228a4c197224823

            SHA256

            196dfc66406af5b325321838a1a38c479a9cd78cdf94a54af8c30d9d4977073a

            SHA512

            84bb738fe8fa53e5c2e4ba13db096a02e49e4549a00c640fb71f56430d2f7e4dbef315551243fdb9aa9f8657636d7a26e0fd78dfdbbd102dfe19cbacb8d6b3fc

          • C:\Windows\SysWOW64\hfpapi.dll

            Filesize

            241KB

            MD5

            0a1214d8b9c30266e833dc89c912a623

            SHA1

            3a548961594c393f1e503dff3ccd4c06a32fa143

            SHA256

            27779ca73277d161300352c92855c45d72b6eade92a4f97d79dc4e6df7612900

            SHA512

            878202da06ba5390c8c9a806bc6b005735703bb289332a67f6cb7cbd651b82915fd3956a3c8ac5f799796278822337eefa44b3613fb0913e48ef730bcd6d4197

          • C:\Windows\SysWOW64\hfpapi.dll

            Filesize

            241KB

            MD5

            0a1214d8b9c30266e833dc89c912a623

            SHA1

            3a548961594c393f1e503dff3ccd4c06a32fa143

            SHA256

            27779ca73277d161300352c92855c45d72b6eade92a4f97d79dc4e6df7612900

            SHA512

            878202da06ba5390c8c9a806bc6b005735703bb289332a67f6cb7cbd651b82915fd3956a3c8ac5f799796278822337eefa44b3613fb0913e48ef730bcd6d4197

          • C:\Windows\SysWOW64\hfpapi.dll

            Filesize

            241KB

            MD5

            0a1214d8b9c30266e833dc89c912a623

            SHA1

            3a548961594c393f1e503dff3ccd4c06a32fa143

            SHA256

            27779ca73277d161300352c92855c45d72b6eade92a4f97d79dc4e6df7612900

            SHA512

            878202da06ba5390c8c9a806bc6b005735703bb289332a67f6cb7cbd651b82915fd3956a3c8ac5f799796278822337eefa44b3613fb0913e48ef730bcd6d4197

          • C:\Windows\SysWOW64\installd.exe

            Filesize

            108KB

            MD5

            38aae5a3ed564d14dd9c51defaad343f

            SHA1

            2fe17ea25efb0ae8eecf95f023cf15bc0d56c212

            SHA256

            bd256fe10d8f5033eb1fc2600c2af7c0c6192a4aed888fabdcac5b81ec2d8c6f

            SHA512

            7e69bdc5e1f1dc16b74998503db995cb63a637a385afb3a528d94ef091ce0047a611a341b81b03ada9285c3ee434398845b88b6ec94e546a31f52d99bd7ffec4

          • C:\Windows\SysWOW64\installd.exe

            Filesize

            108KB

            MD5

            38aae5a3ed564d14dd9c51defaad343f

            SHA1

            2fe17ea25efb0ae8eecf95f023cf15bc0d56c212

            SHA256

            bd256fe10d8f5033eb1fc2600c2af7c0c6192a4aed888fabdcac5b81ec2d8c6f

            SHA512

            7e69bdc5e1f1dc16b74998503db995cb63a637a385afb3a528d94ef091ce0047a611a341b81b03ada9285c3ee434398845b88b6ec94e546a31f52d99bd7ffec4

          • C:\Windows\SysWOW64\nethtsrv.exe

            Filesize

            176KB

            MD5

            51f4aa80556db836df5937ec55c7f87c

            SHA1

            f287867732c955d16699490db135a47e84d14693

            SHA256

            b99fa8d6cd50f709d3dd756065610b5b8d453858448840cf8c602cd1b4ce53e9

            SHA512

            bac20f94fd1b394c3b9f01c4bef90d8a8cbd00ee75dfb31a3d3d24afc700a1ff8edcb3a02ee03fd3542c56fa18bec49fdb9cc3dd27e6b648dae84669f74bcbc4

          • C:\Windows\SysWOW64\nethtsrv.exe

            Filesize

            176KB

            MD5

            51f4aa80556db836df5937ec55c7f87c

            SHA1

            f287867732c955d16699490db135a47e84d14693

            SHA256

            b99fa8d6cd50f709d3dd756065610b5b8d453858448840cf8c602cd1b4ce53e9

            SHA512

            bac20f94fd1b394c3b9f01c4bef90d8a8cbd00ee75dfb31a3d3d24afc700a1ff8edcb3a02ee03fd3542c56fa18bec49fdb9cc3dd27e6b648dae84669f74bcbc4

          • C:\Windows\SysWOW64\nethtsrv.exe

            Filesize

            176KB

            MD5

            51f4aa80556db836df5937ec55c7f87c

            SHA1

            f287867732c955d16699490db135a47e84d14693

            SHA256

            b99fa8d6cd50f709d3dd756065610b5b8d453858448840cf8c602cd1b4ce53e9

            SHA512

            bac20f94fd1b394c3b9f01c4bef90d8a8cbd00ee75dfb31a3d3d24afc700a1ff8edcb3a02ee03fd3542c56fa18bec49fdb9cc3dd27e6b648dae84669f74bcbc4

          • C:\Windows\SysWOW64\netupdsrv.exe

            Filesize

            158KB

            MD5

            c7cd54f14939232b7c7cdc1b4dcea0ca

            SHA1

            2501a578ffc858004fc07f1762511fec7f6eb25a

            SHA256

            7b21b01652c7e47eaadbc7450b4d7c5b672d56bb6cb6b1c143538a0967ab2328

            SHA512

            189cb9489aefbb0b4acb3a093e3f85dbb7e45867eca324364fb1c3a44785af865b22a059a0d9c53c4477caa70d64ab030a82a30c010258ada2ee66435a007319

          • C:\Windows\SysWOW64\netupdsrv.exe

            Filesize

            158KB

            MD5

            c7cd54f14939232b7c7cdc1b4dcea0ca

            SHA1

            2501a578ffc858004fc07f1762511fec7f6eb25a

            SHA256

            7b21b01652c7e47eaadbc7450b4d7c5b672d56bb6cb6b1c143538a0967ab2328

            SHA512

            189cb9489aefbb0b4acb3a093e3f85dbb7e45867eca324364fb1c3a44785af865b22a059a0d9c53c4477caa70d64ab030a82a30c010258ada2ee66435a007319

          • C:\Windows\SysWOW64\netupdsrv.exe

            Filesize

            158KB

            MD5

            c7cd54f14939232b7c7cdc1b4dcea0ca

            SHA1

            2501a578ffc858004fc07f1762511fec7f6eb25a

            SHA256

            7b21b01652c7e47eaadbc7450b4d7c5b672d56bb6cb6b1c143538a0967ab2328

            SHA512

            189cb9489aefbb0b4acb3a093e3f85dbb7e45867eca324364fb1c3a44785af865b22a059a0d9c53c4477caa70d64ab030a82a30c010258ada2ee66435a007319

          • memory/864-168-0x0000000000360000-0x00000000007BE000-memory.dmp

            Filesize

            4.4MB

          • memory/864-132-0x0000000000360000-0x00000000007BE000-memory.dmp

            Filesize

            4.4MB

          • memory/1196-136-0x0000000000000000-mapping.dmp

          • memory/1256-153-0x0000000000000000-mapping.dmp

          • memory/2160-140-0x0000000000000000-mapping.dmp

          • memory/2196-142-0x0000000000000000-mapping.dmp

          • memory/3136-158-0x0000000000000000-mapping.dmp

          • memory/3476-137-0x0000000000000000-mapping.dmp

          • memory/3796-165-0x0000000000000000-mapping.dmp

          • memory/4156-141-0x0000000000000000-mapping.dmp

          • memory/4304-159-0x0000000000000000-mapping.dmp

          • memory/4712-166-0x0000000000000000-mapping.dmp

          • memory/4900-147-0x0000000000000000-mapping.dmp