Analysis

  • max time kernel
    149s
  • max time network
    182s
  • 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 10:06

General

  • Target

    fcc5f15d9ab21052bbec6192aa11c5de39368e09c064ef2e0879f74bd699c31c.exe

  • Size

    602KB

  • MD5

    98d077eed6de7a8990e813f00cae51b9

  • SHA1

    90aa27c3302983a7f96c2eaef47ca365c3949495

  • SHA256

    fcc5f15d9ab21052bbec6192aa11c5de39368e09c064ef2e0879f74bd699c31c

  • SHA512

    e639e26f8e6fbd4f589e31f4a3b0faca43a63f231bc25aec670307e4f703bd88b7a611c67dff9a52c61df9e127d0a25e20f73fc23c3ff7c9c210c6a083600565

  • SSDEEP

    12288:mIny5DYTcIf4lmLZucW5DhlYg8TqL2bNCR7hLMi5CF7rA:IUTcE4VzDTYaQIhLRCF7r

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\fcc5f15d9ab21052bbec6192aa11c5de39368e09c064ef2e0879f74bd699c31c.exe
    "C:\Users\Admin\AppData\Local\Temp\fcc5f15d9ab21052bbec6192aa11c5de39368e09c064ef2e0879f74bd699c31c.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:4004
    • C:\Windows\SysWOW64\net.exe
      net stop nethttpservice
      2⤵
      • Suspicious use of WriteProcessMemory
      PID:4676
      • C:\Windows\SysWOW64\net1.exe
        C:\Windows\system32\net1 stop nethttpservice
        3⤵
          PID:3048
      • C:\Windows\SysWOW64\net.exe
        net stop serviceupdater
        2⤵
        • Suspicious use of WriteProcessMemory
        PID:540
        • C:\Windows\SysWOW64\net1.exe
          C:\Windows\system32\net1 stop serviceupdater
          3⤵
            PID:228
        • C:\Windows\SysWOW64\installd.exe
          "C:\Windows\system32\installd.exe" nethfdrv
          2⤵
          • Executes dropped EXE
          • Loads dropped DLL
          PID:4076
        • C:\Windows\SysWOW64\nethtsrv.exe
          "C:\Windows\system32\nethtsrv.exe" -nfdi
          2⤵
          • Executes dropped EXE
          • Loads dropped DLL
          PID:3200
        • C:\Windows\SysWOW64\netupdsrv.exe
          "C:\Windows\system32\netupdsrv.exe" -nfdi
          2⤵
          • Executes dropped EXE
          PID:2312
        • C:\Windows\SysWOW64\net.exe
          net start nethttpservice
          2⤵
          • Suspicious use of WriteProcessMemory
          PID:4956
          • C:\Windows\SysWOW64\net1.exe
            C:\Windows\system32\net1 start nethttpservice
            3⤵
              PID:3144
          • C:\Windows\SysWOW64\net.exe
            net start serviceupdater
            2⤵
            • Suspicious use of WriteProcessMemory
            PID:3688
            • C:\Windows\SysWOW64\net1.exe
              C:\Windows\system32\net1 start serviceupdater
              3⤵
                PID:776
          • 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:2872
          • C:\Windows\SysWOW64\netupdsrv.exe
            C:\Windows\SysWOW64\netupdsrv.exe
            1⤵
            • Executes dropped EXE
            PID:3300

          Network

          MITRE ATT&CK Enterprise v6

          Replay Monitor

          Loading Replay Monitor...

          Downloads

          • C:\Users\Admin\AppData\Local\Temp\nso1E38.tmp\System.dll

            Filesize

            11KB

            MD5

            c17103ae9072a06da581dec998343fc1

            SHA1

            b72148c6bdfaada8b8c3f950e610ee7cf1da1f8d

            SHA256

            dc58d8ad81cacb0c1ed72e33bff8f23ea40b5252b5bb55d393a0903e6819ae2f

            SHA512

            d32a71aaef18e993f28096d536e41c4d016850721b31171513ce28bbd805a54fd290b7c3e9d935f72e676a1acfb4f0dcc89d95040a0dd29f2b6975855c18986f

          • C:\Users\Admin\AppData\Local\Temp\nso1E38.tmp\nsExec.dll

            Filesize

            6KB

            MD5

            acc2b699edfea5bf5aae45aba3a41e96

            SHA1

            d2accf4d494e43ceb2cff69abe4dd17147d29cc2

            SHA256

            168a974eaa3f588d759db3f47c1a9fdc3494ba1fa1a73a84e5e3b2a4d58abd7e

            SHA512

            e29ea10ada98c71a18273b04f44f385b120d4e8473e441ce5748cfa44a23648814f2656f429b85440157988c88de776c6ac008dc38bf09cbb746c230a46c69fe

          • C:\Users\Admin\AppData\Local\Temp\nso1E38.tmp\nsExec.dll

            Filesize

            6KB

            MD5

            acc2b699edfea5bf5aae45aba3a41e96

            SHA1

            d2accf4d494e43ceb2cff69abe4dd17147d29cc2

            SHA256

            168a974eaa3f588d759db3f47c1a9fdc3494ba1fa1a73a84e5e3b2a4d58abd7e

            SHA512

            e29ea10ada98c71a18273b04f44f385b120d4e8473e441ce5748cfa44a23648814f2656f429b85440157988c88de776c6ac008dc38bf09cbb746c230a46c69fe

          • C:\Users\Admin\AppData\Local\Temp\nso1E38.tmp\nsExec.dll

            Filesize

            6KB

            MD5

            acc2b699edfea5bf5aae45aba3a41e96

            SHA1

            d2accf4d494e43ceb2cff69abe4dd17147d29cc2

            SHA256

            168a974eaa3f588d759db3f47c1a9fdc3494ba1fa1a73a84e5e3b2a4d58abd7e

            SHA512

            e29ea10ada98c71a18273b04f44f385b120d4e8473e441ce5748cfa44a23648814f2656f429b85440157988c88de776c6ac008dc38bf09cbb746c230a46c69fe

          • C:\Users\Admin\AppData\Local\Temp\nso1E38.tmp\nsExec.dll

            Filesize

            6KB

            MD5

            acc2b699edfea5bf5aae45aba3a41e96

            SHA1

            d2accf4d494e43ceb2cff69abe4dd17147d29cc2

            SHA256

            168a974eaa3f588d759db3f47c1a9fdc3494ba1fa1a73a84e5e3b2a4d58abd7e

            SHA512

            e29ea10ada98c71a18273b04f44f385b120d4e8473e441ce5748cfa44a23648814f2656f429b85440157988c88de776c6ac008dc38bf09cbb746c230a46c69fe

          • C:\Users\Admin\AppData\Local\Temp\nso1E38.tmp\nsExec.dll

            Filesize

            6KB

            MD5

            acc2b699edfea5bf5aae45aba3a41e96

            SHA1

            d2accf4d494e43ceb2cff69abe4dd17147d29cc2

            SHA256

            168a974eaa3f588d759db3f47c1a9fdc3494ba1fa1a73a84e5e3b2a4d58abd7e

            SHA512

            e29ea10ada98c71a18273b04f44f385b120d4e8473e441ce5748cfa44a23648814f2656f429b85440157988c88de776c6ac008dc38bf09cbb746c230a46c69fe

          • C:\Users\Admin\AppData\Local\Temp\nso1E38.tmp\nsExec.dll

            Filesize

            6KB

            MD5

            acc2b699edfea5bf5aae45aba3a41e96

            SHA1

            d2accf4d494e43ceb2cff69abe4dd17147d29cc2

            SHA256

            168a974eaa3f588d759db3f47c1a9fdc3494ba1fa1a73a84e5e3b2a4d58abd7e

            SHA512

            e29ea10ada98c71a18273b04f44f385b120d4e8473e441ce5748cfa44a23648814f2656f429b85440157988c88de776c6ac008dc38bf09cbb746c230a46c69fe

          • C:\Users\Admin\AppData\Local\Temp\nso1E38.tmp\nsExec.dll

            Filesize

            6KB

            MD5

            acc2b699edfea5bf5aae45aba3a41e96

            SHA1

            d2accf4d494e43ceb2cff69abe4dd17147d29cc2

            SHA256

            168a974eaa3f588d759db3f47c1a9fdc3494ba1fa1a73a84e5e3b2a4d58abd7e

            SHA512

            e29ea10ada98c71a18273b04f44f385b120d4e8473e441ce5748cfa44a23648814f2656f429b85440157988c88de776c6ac008dc38bf09cbb746c230a46c69fe

          • C:\Users\Admin\AppData\Local\Temp\nso1E38.tmp\nsExec.dll

            Filesize

            6KB

            MD5

            acc2b699edfea5bf5aae45aba3a41e96

            SHA1

            d2accf4d494e43ceb2cff69abe4dd17147d29cc2

            SHA256

            168a974eaa3f588d759db3f47c1a9fdc3494ba1fa1a73a84e5e3b2a4d58abd7e

            SHA512

            e29ea10ada98c71a18273b04f44f385b120d4e8473e441ce5748cfa44a23648814f2656f429b85440157988c88de776c6ac008dc38bf09cbb746c230a46c69fe

          • C:\Windows\SysWOW64\hfnapi.dll

            Filesize

            106KB

            MD5

            d097cf08bda30b1d9b79ac4200f40434

            SHA1

            384d4f72c3a2480f86c48f94c4c01ffe4f63e1ae

            SHA256

            78aa7766c42f981b389ed15580a28c2303dbbad8b1d5ef72ce0b9e4ce264a47b

            SHA512

            3dea17ce2b7b6f6eba2612abf0861c7cef3d8df31a2b3776f0fb0689486556914a1f7407ad2a369d09e70bd544a8b16db426a4169b511b988624c380bcc2f68a

          • C:\Windows\SysWOW64\hfnapi.dll

            Filesize

            106KB

            MD5

            d097cf08bda30b1d9b79ac4200f40434

            SHA1

            384d4f72c3a2480f86c48f94c4c01ffe4f63e1ae

            SHA256

            78aa7766c42f981b389ed15580a28c2303dbbad8b1d5ef72ce0b9e4ce264a47b

            SHA512

            3dea17ce2b7b6f6eba2612abf0861c7cef3d8df31a2b3776f0fb0689486556914a1f7407ad2a369d09e70bd544a8b16db426a4169b511b988624c380bcc2f68a

          • C:\Windows\SysWOW64\hfnapi.dll

            Filesize

            106KB

            MD5

            d097cf08bda30b1d9b79ac4200f40434

            SHA1

            384d4f72c3a2480f86c48f94c4c01ffe4f63e1ae

            SHA256

            78aa7766c42f981b389ed15580a28c2303dbbad8b1d5ef72ce0b9e4ce264a47b

            SHA512

            3dea17ce2b7b6f6eba2612abf0861c7cef3d8df31a2b3776f0fb0689486556914a1f7407ad2a369d09e70bd544a8b16db426a4169b511b988624c380bcc2f68a

          • C:\Windows\SysWOW64\hfnapi.dll

            Filesize

            106KB

            MD5

            d097cf08bda30b1d9b79ac4200f40434

            SHA1

            384d4f72c3a2480f86c48f94c4c01ffe4f63e1ae

            SHA256

            78aa7766c42f981b389ed15580a28c2303dbbad8b1d5ef72ce0b9e4ce264a47b

            SHA512

            3dea17ce2b7b6f6eba2612abf0861c7cef3d8df31a2b3776f0fb0689486556914a1f7407ad2a369d09e70bd544a8b16db426a4169b511b988624c380bcc2f68a

          • C:\Windows\SysWOW64\hfpapi.dll

            Filesize

            244KB

            MD5

            eb315a7d12a52e1528197424906fd30f

            SHA1

            d39c72296df79220781d5992ababa9cf8ea95f0b

            SHA256

            a675348b1626bf3fe57f63100095c187b4c36a2eca6acf8733fc501095eca0f1

            SHA512

            1fb8d73ea34d960eecdc5334ec2f8fb702b9fa24fa3bfc43160c66261bf1407b5f6740212196acb0ddf5792f886d964a1fe2f51c2307287207edf840a7229da3

          • C:\Windows\SysWOW64\hfpapi.dll

            Filesize

            244KB

            MD5

            eb315a7d12a52e1528197424906fd30f

            SHA1

            d39c72296df79220781d5992ababa9cf8ea95f0b

            SHA256

            a675348b1626bf3fe57f63100095c187b4c36a2eca6acf8733fc501095eca0f1

            SHA512

            1fb8d73ea34d960eecdc5334ec2f8fb702b9fa24fa3bfc43160c66261bf1407b5f6740212196acb0ddf5792f886d964a1fe2f51c2307287207edf840a7229da3

          • C:\Windows\SysWOW64\hfpapi.dll

            Filesize

            244KB

            MD5

            eb315a7d12a52e1528197424906fd30f

            SHA1

            d39c72296df79220781d5992ababa9cf8ea95f0b

            SHA256

            a675348b1626bf3fe57f63100095c187b4c36a2eca6acf8733fc501095eca0f1

            SHA512

            1fb8d73ea34d960eecdc5334ec2f8fb702b9fa24fa3bfc43160c66261bf1407b5f6740212196acb0ddf5792f886d964a1fe2f51c2307287207edf840a7229da3

          • C:\Windows\SysWOW64\installd.exe

            Filesize

            108KB

            MD5

            87d1f6da11cbc875a7bf8aaa2a8e5dc8

            SHA1

            041f1f2586ef3553929f59bba6ea82f5efaf9ea6

            SHA256

            c45c9106b78198833671b9672a255994da087281c9f619ac3f75bfe09a1a47fd

            SHA512

            83d4426848bea12b236177b66e096cd0ad4dec1583c9ff1bb04484d6087b05bddc3730c0a9a365bcdd516c14885e8aba00037bce991a9b57d2705bdb9ab64773

          • C:\Windows\SysWOW64\installd.exe

            Filesize

            108KB

            MD5

            87d1f6da11cbc875a7bf8aaa2a8e5dc8

            SHA1

            041f1f2586ef3553929f59bba6ea82f5efaf9ea6

            SHA256

            c45c9106b78198833671b9672a255994da087281c9f619ac3f75bfe09a1a47fd

            SHA512

            83d4426848bea12b236177b66e096cd0ad4dec1583c9ff1bb04484d6087b05bddc3730c0a9a365bcdd516c14885e8aba00037bce991a9b57d2705bdb9ab64773

          • C:\Windows\SysWOW64\nethtsrv.exe

            Filesize

            176KB

            MD5

            7944ce8d6e92771595cb8042b60efe81

            SHA1

            04776645741079e3453ef225859edc5fd0e63ca8

            SHA256

            8b82cfafe17365208410b6d9969509bb02795ba310ffa57809037255e2775b98

            SHA512

            440149ac94db6df6fcffbaf64a810209262b2ed91af46a46b547240ec3b277c069f5006d1e44965e668a43ffe25fe08b30f9e946758728953d84ad5e5d896d9f

          • C:\Windows\SysWOW64\nethtsrv.exe

            Filesize

            176KB

            MD5

            7944ce8d6e92771595cb8042b60efe81

            SHA1

            04776645741079e3453ef225859edc5fd0e63ca8

            SHA256

            8b82cfafe17365208410b6d9969509bb02795ba310ffa57809037255e2775b98

            SHA512

            440149ac94db6df6fcffbaf64a810209262b2ed91af46a46b547240ec3b277c069f5006d1e44965e668a43ffe25fe08b30f9e946758728953d84ad5e5d896d9f

          • C:\Windows\SysWOW64\nethtsrv.exe

            Filesize

            176KB

            MD5

            7944ce8d6e92771595cb8042b60efe81

            SHA1

            04776645741079e3453ef225859edc5fd0e63ca8

            SHA256

            8b82cfafe17365208410b6d9969509bb02795ba310ffa57809037255e2775b98

            SHA512

            440149ac94db6df6fcffbaf64a810209262b2ed91af46a46b547240ec3b277c069f5006d1e44965e668a43ffe25fe08b30f9e946758728953d84ad5e5d896d9f

          • C:\Windows\SysWOW64\netupdsrv.exe

            Filesize

            158KB

            MD5

            ae10b2ac54753af517bdf635c81002c6

            SHA1

            4c81a2057775634c9f98260a772a8e8470a93ab5

            SHA256

            f7f333ea7cf3857593fe86376d4c6cb07ea57df8caa468a183e16a50099dbe3b

            SHA512

            49cc0ebd9dd7b5bc87a101a599529f38cf867fafc3578f2461cf42bc8306bc02c8d2837bb0de1b3e278ca12b5b54bd417b2efdbc82aeaaa68eb25b7dff172aef

          • C:\Windows\SysWOW64\netupdsrv.exe

            Filesize

            158KB

            MD5

            ae10b2ac54753af517bdf635c81002c6

            SHA1

            4c81a2057775634c9f98260a772a8e8470a93ab5

            SHA256

            f7f333ea7cf3857593fe86376d4c6cb07ea57df8caa468a183e16a50099dbe3b

            SHA512

            49cc0ebd9dd7b5bc87a101a599529f38cf867fafc3578f2461cf42bc8306bc02c8d2837bb0de1b3e278ca12b5b54bd417b2efdbc82aeaaa68eb25b7dff172aef

          • C:\Windows\SysWOW64\netupdsrv.exe

            Filesize

            158KB

            MD5

            ae10b2ac54753af517bdf635c81002c6

            SHA1

            4c81a2057775634c9f98260a772a8e8470a93ab5

            SHA256

            f7f333ea7cf3857593fe86376d4c6cb07ea57df8caa468a183e16a50099dbe3b

            SHA512

            49cc0ebd9dd7b5bc87a101a599529f38cf867fafc3578f2461cf42bc8306bc02c8d2837bb0de1b3e278ca12b5b54bd417b2efdbc82aeaaa68eb25b7dff172aef

          • memory/228-141-0x0000000000000000-mapping.dmp

          • memory/540-140-0x0000000000000000-mapping.dmp

          • memory/776-167-0x0000000000000000-mapping.dmp

          • memory/2312-154-0x0000000000000000-mapping.dmp

          • memory/3048-137-0x0000000000000000-mapping.dmp

          • memory/3144-160-0x0000000000000000-mapping.dmp

          • memory/3200-148-0x0000000000000000-mapping.dmp

          • memory/3688-166-0x0000000000000000-mapping.dmp

          • memory/4004-132-0x0000000000360000-0x00000000007BE000-memory.dmp

            Filesize

            4.4MB

          • memory/4004-142-0x0000000000360000-0x00000000007BE000-memory.dmp

            Filesize

            4.4MB

          • memory/4004-169-0x0000000000360000-0x00000000007BE000-memory.dmp

            Filesize

            4.4MB

          • memory/4076-143-0x0000000000000000-mapping.dmp

          • memory/4676-136-0x0000000000000000-mapping.dmp

          • memory/4956-159-0x0000000000000000-mapping.dmp