Analysis

  • max time kernel
    170s
  • 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 10:22

General

  • Target

    78d19ce76986e6bc09e8345df7bb754894aac011474b91496b8479388864c9f6.exe

  • Size

    602KB

  • MD5

    af7cc29f2257297dbbd195a01493add3

  • SHA1

    deeac5e6637b5c8da907f9135399ebb2ed2f9ed2

  • SHA256

    78d19ce76986e6bc09e8345df7bb754894aac011474b91496b8479388864c9f6

  • SHA512

    86f17943290ac3588836de1ae4dfa32b5832d68b2099b9daab1f2629f2af8a4e845d1dcc6823a3c49709cc9102576222661fc00bacd90e3d464ebccb66f39f7c

  • SSDEEP

    12288:fIny5DYTjWCONVos7mYl6fk8n14p55bNXh0M1Em5S:HUTjpSpmjcoW7xtEWS

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\78d19ce76986e6bc09e8345df7bb754894aac011474b91496b8479388864c9f6.exe
    "C:\Users\Admin\AppData\Local\Temp\78d19ce76986e6bc09e8345df7bb754894aac011474b91496b8479388864c9f6.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:3128
    • C:\Windows\SysWOW64\net.exe
      net stop nethttpservice
      2⤵
      • Suspicious use of WriteProcessMemory
      PID:3948
      • C:\Windows\SysWOW64\net1.exe
        C:\Windows\system32\net1 stop nethttpservice
        3⤵
          PID:3228
      • C:\Windows\SysWOW64\net.exe
        net stop serviceupdater
        2⤵
        • Suspicious use of WriteProcessMemory
        PID:4320
        • C:\Windows\SysWOW64\net1.exe
          C:\Windows\system32\net1 stop serviceupdater
          3⤵
            PID:3996
        • C:\Windows\SysWOW64\installd.exe
          "C:\Windows\system32\installd.exe" nethfdrv
          2⤵
          • Executes dropped EXE
          • Loads dropped DLL
          PID:1544
        • C:\Windows\SysWOW64\nethtsrv.exe
          "C:\Windows\system32\nethtsrv.exe" -nfdi
          2⤵
          • Executes dropped EXE
          • Loads dropped DLL
          PID:1984
        • C:\Windows\SysWOW64\netupdsrv.exe
          "C:\Windows\system32\netupdsrv.exe" -nfdi
          2⤵
          • Executes dropped EXE
          PID:3840
        • C:\Windows\SysWOW64\net.exe
          net start nethttpservice
          2⤵
          • Suspicious use of WriteProcessMemory
          PID:1388
          • C:\Windows\SysWOW64\net1.exe
            C:\Windows\system32\net1 start nethttpservice
            3⤵
              PID:3084
          • C:\Windows\SysWOW64\net.exe
            net start serviceupdater
            2⤵
            • Suspicious use of WriteProcessMemory
            PID:4068
            • C:\Windows\SysWOW64\net1.exe
              C:\Windows\system32\net1 start serviceupdater
              3⤵
                PID:1608
          • 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:2280
          • C:\Windows\SysWOW64\netupdsrv.exe
            C:\Windows\SysWOW64\netupdsrv.exe
            1⤵
            • Executes dropped EXE
            PID:4120

          Network

          MITRE ATT&CK Enterprise v6

          Replay Monitor

          Loading Replay Monitor...

          Downloads

          • C:\Users\Admin\AppData\Local\Temp\nsz9EF1.tmp\System.dll

            Filesize

            11KB

            MD5

            c17103ae9072a06da581dec998343fc1

            SHA1

            b72148c6bdfaada8b8c3f950e610ee7cf1da1f8d

            SHA256

            dc58d8ad81cacb0c1ed72e33bff8f23ea40b5252b5bb55d393a0903e6819ae2f

            SHA512

            d32a71aaef18e993f28096d536e41c4d016850721b31171513ce28bbd805a54fd290b7c3e9d935f72e676a1acfb4f0dcc89d95040a0dd29f2b6975855c18986f

          • C:\Users\Admin\AppData\Local\Temp\nsz9EF1.tmp\nsExec.dll

            Filesize

            6KB

            MD5

            acc2b699edfea5bf5aae45aba3a41e96

            SHA1

            d2accf4d494e43ceb2cff69abe4dd17147d29cc2

            SHA256

            168a974eaa3f588d759db3f47c1a9fdc3494ba1fa1a73a84e5e3b2a4d58abd7e

            SHA512

            e29ea10ada98c71a18273b04f44f385b120d4e8473e441ce5748cfa44a23648814f2656f429b85440157988c88de776c6ac008dc38bf09cbb746c230a46c69fe

          • C:\Users\Admin\AppData\Local\Temp\nsz9EF1.tmp\nsExec.dll

            Filesize

            6KB

            MD5

            acc2b699edfea5bf5aae45aba3a41e96

            SHA1

            d2accf4d494e43ceb2cff69abe4dd17147d29cc2

            SHA256

            168a974eaa3f588d759db3f47c1a9fdc3494ba1fa1a73a84e5e3b2a4d58abd7e

            SHA512

            e29ea10ada98c71a18273b04f44f385b120d4e8473e441ce5748cfa44a23648814f2656f429b85440157988c88de776c6ac008dc38bf09cbb746c230a46c69fe

          • C:\Users\Admin\AppData\Local\Temp\nsz9EF1.tmp\nsExec.dll

            Filesize

            6KB

            MD5

            acc2b699edfea5bf5aae45aba3a41e96

            SHA1

            d2accf4d494e43ceb2cff69abe4dd17147d29cc2

            SHA256

            168a974eaa3f588d759db3f47c1a9fdc3494ba1fa1a73a84e5e3b2a4d58abd7e

            SHA512

            e29ea10ada98c71a18273b04f44f385b120d4e8473e441ce5748cfa44a23648814f2656f429b85440157988c88de776c6ac008dc38bf09cbb746c230a46c69fe

          • C:\Users\Admin\AppData\Local\Temp\nsz9EF1.tmp\nsExec.dll

            Filesize

            6KB

            MD5

            acc2b699edfea5bf5aae45aba3a41e96

            SHA1

            d2accf4d494e43ceb2cff69abe4dd17147d29cc2

            SHA256

            168a974eaa3f588d759db3f47c1a9fdc3494ba1fa1a73a84e5e3b2a4d58abd7e

            SHA512

            e29ea10ada98c71a18273b04f44f385b120d4e8473e441ce5748cfa44a23648814f2656f429b85440157988c88de776c6ac008dc38bf09cbb746c230a46c69fe

          • C:\Users\Admin\AppData\Local\Temp\nsz9EF1.tmp\nsExec.dll

            Filesize

            6KB

            MD5

            acc2b699edfea5bf5aae45aba3a41e96

            SHA1

            d2accf4d494e43ceb2cff69abe4dd17147d29cc2

            SHA256

            168a974eaa3f588d759db3f47c1a9fdc3494ba1fa1a73a84e5e3b2a4d58abd7e

            SHA512

            e29ea10ada98c71a18273b04f44f385b120d4e8473e441ce5748cfa44a23648814f2656f429b85440157988c88de776c6ac008dc38bf09cbb746c230a46c69fe

          • C:\Users\Admin\AppData\Local\Temp\nsz9EF1.tmp\nsExec.dll

            Filesize

            6KB

            MD5

            acc2b699edfea5bf5aae45aba3a41e96

            SHA1

            d2accf4d494e43ceb2cff69abe4dd17147d29cc2

            SHA256

            168a974eaa3f588d759db3f47c1a9fdc3494ba1fa1a73a84e5e3b2a4d58abd7e

            SHA512

            e29ea10ada98c71a18273b04f44f385b120d4e8473e441ce5748cfa44a23648814f2656f429b85440157988c88de776c6ac008dc38bf09cbb746c230a46c69fe

          • C:\Users\Admin\AppData\Local\Temp\nsz9EF1.tmp\nsExec.dll

            Filesize

            6KB

            MD5

            acc2b699edfea5bf5aae45aba3a41e96

            SHA1

            d2accf4d494e43ceb2cff69abe4dd17147d29cc2

            SHA256

            168a974eaa3f588d759db3f47c1a9fdc3494ba1fa1a73a84e5e3b2a4d58abd7e

            SHA512

            e29ea10ada98c71a18273b04f44f385b120d4e8473e441ce5748cfa44a23648814f2656f429b85440157988c88de776c6ac008dc38bf09cbb746c230a46c69fe

          • C:\Users\Admin\AppData\Local\Temp\nsz9EF1.tmp\nsExec.dll

            Filesize

            6KB

            MD5

            acc2b699edfea5bf5aae45aba3a41e96

            SHA1

            d2accf4d494e43ceb2cff69abe4dd17147d29cc2

            SHA256

            168a974eaa3f588d759db3f47c1a9fdc3494ba1fa1a73a84e5e3b2a4d58abd7e

            SHA512

            e29ea10ada98c71a18273b04f44f385b120d4e8473e441ce5748cfa44a23648814f2656f429b85440157988c88de776c6ac008dc38bf09cbb746c230a46c69fe

          • C:\Windows\SysWOW64\hfnapi.dll

            Filesize

            106KB

            MD5

            25aee1605b09d31089ed770687dbc843

            SHA1

            c6cffa76cfbffbda01bd27ff8fb3907a123a89df

            SHA256

            461b3895d182aeafd02dec98b1f3ec80512fddb8d5b3e04889ba13c6b6019345

            SHA512

            533e487463d9ba6fa032ccd50d5a34ce7112bbdd55306c88c7e5ee011694de8eddafaf1ac9ddd4af4bd70302d3d72bdcee2006cb3f6f047007d4236347cfe886

          • C:\Windows\SysWOW64\hfnapi.dll

            Filesize

            106KB

            MD5

            25aee1605b09d31089ed770687dbc843

            SHA1

            c6cffa76cfbffbda01bd27ff8fb3907a123a89df

            SHA256

            461b3895d182aeafd02dec98b1f3ec80512fddb8d5b3e04889ba13c6b6019345

            SHA512

            533e487463d9ba6fa032ccd50d5a34ce7112bbdd55306c88c7e5ee011694de8eddafaf1ac9ddd4af4bd70302d3d72bdcee2006cb3f6f047007d4236347cfe886

          • C:\Windows\SysWOW64\hfnapi.dll

            Filesize

            106KB

            MD5

            25aee1605b09d31089ed770687dbc843

            SHA1

            c6cffa76cfbffbda01bd27ff8fb3907a123a89df

            SHA256

            461b3895d182aeafd02dec98b1f3ec80512fddb8d5b3e04889ba13c6b6019345

            SHA512

            533e487463d9ba6fa032ccd50d5a34ce7112bbdd55306c88c7e5ee011694de8eddafaf1ac9ddd4af4bd70302d3d72bdcee2006cb3f6f047007d4236347cfe886

          • C:\Windows\SysWOW64\hfnapi.dll

            Filesize

            106KB

            MD5

            25aee1605b09d31089ed770687dbc843

            SHA1

            c6cffa76cfbffbda01bd27ff8fb3907a123a89df

            SHA256

            461b3895d182aeafd02dec98b1f3ec80512fddb8d5b3e04889ba13c6b6019345

            SHA512

            533e487463d9ba6fa032ccd50d5a34ce7112bbdd55306c88c7e5ee011694de8eddafaf1ac9ddd4af4bd70302d3d72bdcee2006cb3f6f047007d4236347cfe886

          • C:\Windows\SysWOW64\hfpapi.dll

            Filesize

            241KB

            MD5

            8ae82a7273f929c4a767eacccf592570

            SHA1

            61fb78d53f2dd1ac6c53fbefcae7845e3e02ef8f

            SHA256

            0974f2876faf1426695de5d0ee971a5a4292755468751fbfc7fc45c4cc927ec1

            SHA512

            34fd58f3ca67cdaf1a92b464a587cf45641a649ef0ab86016b94662d167e8a53151e32e1bbfb3d2515ab5bcd318c41f45f60fc5a2b781c5c8c574d1951e36fc0

          • C:\Windows\SysWOW64\hfpapi.dll

            Filesize

            241KB

            MD5

            8ae82a7273f929c4a767eacccf592570

            SHA1

            61fb78d53f2dd1ac6c53fbefcae7845e3e02ef8f

            SHA256

            0974f2876faf1426695de5d0ee971a5a4292755468751fbfc7fc45c4cc927ec1

            SHA512

            34fd58f3ca67cdaf1a92b464a587cf45641a649ef0ab86016b94662d167e8a53151e32e1bbfb3d2515ab5bcd318c41f45f60fc5a2b781c5c8c574d1951e36fc0

          • C:\Windows\SysWOW64\hfpapi.dll

            Filesize

            241KB

            MD5

            8ae82a7273f929c4a767eacccf592570

            SHA1

            61fb78d53f2dd1ac6c53fbefcae7845e3e02ef8f

            SHA256

            0974f2876faf1426695de5d0ee971a5a4292755468751fbfc7fc45c4cc927ec1

            SHA512

            34fd58f3ca67cdaf1a92b464a587cf45641a649ef0ab86016b94662d167e8a53151e32e1bbfb3d2515ab5bcd318c41f45f60fc5a2b781c5c8c574d1951e36fc0

          • C:\Windows\SysWOW64\installd.exe

            Filesize

            108KB

            MD5

            0a586055f8ff60c169cc91656b09b4b3

            SHA1

            20853490c8056d0db0cbd5cfa51ccb4990a96bdd

            SHA256

            b9eda0168a48ffd398eac59a0f211e316d0c8632e9501ebe9c3f87401042730a

            SHA512

            d97d23d66379a5c269c9f29d9b2a055fb1b25475aaf14fa25194f85e642fc1e10c3ef78d06b5939be9851f0cc81dd722f246e057c5c51583e8867fa000d01b48

          • C:\Windows\SysWOW64\installd.exe

            Filesize

            108KB

            MD5

            0a586055f8ff60c169cc91656b09b4b3

            SHA1

            20853490c8056d0db0cbd5cfa51ccb4990a96bdd

            SHA256

            b9eda0168a48ffd398eac59a0f211e316d0c8632e9501ebe9c3f87401042730a

            SHA512

            d97d23d66379a5c269c9f29d9b2a055fb1b25475aaf14fa25194f85e642fc1e10c3ef78d06b5939be9851f0cc81dd722f246e057c5c51583e8867fa000d01b48

          • C:\Windows\SysWOW64\nethtsrv.exe

            Filesize

            176KB

            MD5

            1b43f975ed4b927a142670ebb3a4482c

            SHA1

            bba8d97bbee6094f9968a0fd461e329d26963024

            SHA256

            e957992703fb389fb92cea1245063b11cc3633d247deaa51d45dab1606a0e3a4

            SHA512

            58055b27a82d26ee0fd837192aad9b9dfa9a7c1fbb84df795f4a2b63a0f77162af56251272482a6fee9189e4f61bae8da8178787ba74e2a1d794273763a40733

          • C:\Windows\SysWOW64\nethtsrv.exe

            Filesize

            176KB

            MD5

            1b43f975ed4b927a142670ebb3a4482c

            SHA1

            bba8d97bbee6094f9968a0fd461e329d26963024

            SHA256

            e957992703fb389fb92cea1245063b11cc3633d247deaa51d45dab1606a0e3a4

            SHA512

            58055b27a82d26ee0fd837192aad9b9dfa9a7c1fbb84df795f4a2b63a0f77162af56251272482a6fee9189e4f61bae8da8178787ba74e2a1d794273763a40733

          • C:\Windows\SysWOW64\nethtsrv.exe

            Filesize

            176KB

            MD5

            1b43f975ed4b927a142670ebb3a4482c

            SHA1

            bba8d97bbee6094f9968a0fd461e329d26963024

            SHA256

            e957992703fb389fb92cea1245063b11cc3633d247deaa51d45dab1606a0e3a4

            SHA512

            58055b27a82d26ee0fd837192aad9b9dfa9a7c1fbb84df795f4a2b63a0f77162af56251272482a6fee9189e4f61bae8da8178787ba74e2a1d794273763a40733

          • C:\Windows\SysWOW64\netupdsrv.exe

            Filesize

            158KB

            MD5

            e149b17f20e3bd183b575ae72c6f1fc4

            SHA1

            00e71e0bbfc3052c98a3b1f52f7374378f7fb64a

            SHA256

            79d39b02dd176c9ca7cc4645024c29ef46428554024064a733eec9e1a85832f5

            SHA512

            bbc21e14bc9bf7fee528380d2440b71cab2a4f4744fab46089886594870b445d97b765359d13efd224e0299d290cb5e055b01e570f3ee5dd8e7983207c1e12f9

          • C:\Windows\SysWOW64\netupdsrv.exe

            Filesize

            158KB

            MD5

            e149b17f20e3bd183b575ae72c6f1fc4

            SHA1

            00e71e0bbfc3052c98a3b1f52f7374378f7fb64a

            SHA256

            79d39b02dd176c9ca7cc4645024c29ef46428554024064a733eec9e1a85832f5

            SHA512

            bbc21e14bc9bf7fee528380d2440b71cab2a4f4744fab46089886594870b445d97b765359d13efd224e0299d290cb5e055b01e570f3ee5dd8e7983207c1e12f9

          • C:\Windows\SysWOW64\netupdsrv.exe

            Filesize

            158KB

            MD5

            e149b17f20e3bd183b575ae72c6f1fc4

            SHA1

            00e71e0bbfc3052c98a3b1f52f7374378f7fb64a

            SHA256

            79d39b02dd176c9ca7cc4645024c29ef46428554024064a733eec9e1a85832f5

            SHA512

            bbc21e14bc9bf7fee528380d2440b71cab2a4f4744fab46089886594870b445d97b765359d13efd224e0299d290cb5e055b01e570f3ee5dd8e7983207c1e12f9

          • memory/1388-158-0x0000000000000000-mapping.dmp

          • memory/1544-142-0x0000000000000000-mapping.dmp

          • memory/1608-166-0x0000000000000000-mapping.dmp

          • memory/1984-147-0x0000000000000000-mapping.dmp

          • memory/3084-159-0x0000000000000000-mapping.dmp

          • memory/3128-137-0x0000000000360000-0x00000000007BE000-memory.dmp

            Filesize

            4.4MB

          • memory/3128-168-0x0000000000360000-0x00000000007BE000-memory.dmp

            Filesize

            4.4MB

          • memory/3228-136-0x0000000000000000-mapping.dmp

          • memory/3840-153-0x0000000000000000-mapping.dmp

          • memory/3948-135-0x0000000000000000-mapping.dmp

          • memory/3996-141-0x0000000000000000-mapping.dmp

          • memory/4068-165-0x0000000000000000-mapping.dmp

          • memory/4320-140-0x0000000000000000-mapping.dmp