Analysis

  • max time kernel
    189s
  • max time network
    194s
  • 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 10:12

General

  • Target

    c764ec59ac9d970280aabf85ca2dbbf38a9ce87b5fcdc784067504316082ce38.exe

  • Size

    602KB

  • MD5

    ee9b92ea99060a2247078161d76effbc

  • SHA1

    f5a2f78c7aba340071c70111ed27aed27f4ebd0d

  • SHA256

    c764ec59ac9d970280aabf85ca2dbbf38a9ce87b5fcdc784067504316082ce38

  • SHA512

    3db2fd13e7465189b6018c99654f436a1d4a5268bdf5015969199dca7ece45b44e52695c222f3f3b6531b05865bbc81557ec9a88f2344b4d4f9dcf23a7e64f44

  • SSDEEP

    12288:YIny5DYTqjUBm6w65jlanZULyrwT/ho6wDa6SZeLvhRU7lo1:2UTqjUBamlwVrwTpSQCvhRU7C

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\c764ec59ac9d970280aabf85ca2dbbf38a9ce87b5fcdc784067504316082ce38.exe
    "C:\Users\Admin\AppData\Local\Temp\c764ec59ac9d970280aabf85ca2dbbf38a9ce87b5fcdc784067504316082ce38.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:1844
    • C:\Windows\SysWOW64\net.exe
      net stop nethttpservice
      2⤵
      • Suspicious use of WriteProcessMemory
      PID:4124
      • C:\Windows\SysWOW64\net1.exe
        C:\Windows\system32\net1 stop nethttpservice
        3⤵
          PID:4912
      • C:\Windows\SysWOW64\net.exe
        net stop serviceupdater
        2⤵
        • Suspicious use of WriteProcessMemory
        PID:3312
        • C:\Windows\SysWOW64\net1.exe
          C:\Windows\system32\net1 stop serviceupdater
          3⤵
            PID:544
        • C:\Windows\SysWOW64\installd.exe
          "C:\Windows\system32\installd.exe" nethfdrv
          2⤵
          • Executes dropped EXE
          • Loads dropped DLL
          PID:2592
        • C:\Windows\SysWOW64\nethtsrv.exe
          "C:\Windows\system32\nethtsrv.exe" -nfdi
          2⤵
          • Executes dropped EXE
          • Loads dropped DLL
          PID:2452
        • C:\Windows\SysWOW64\netupdsrv.exe
          "C:\Windows\system32\netupdsrv.exe" -nfdi
          2⤵
          • Executes dropped EXE
          PID:4196
        • C:\Windows\SysWOW64\net.exe
          net start nethttpservice
          2⤵
          • Suspicious use of WriteProcessMemory
          PID:3928
          • C:\Windows\SysWOW64\net1.exe
            C:\Windows\system32\net1 start nethttpservice
            3⤵
              PID:4780
          • C:\Windows\SysWOW64\net.exe
            net start serviceupdater
            2⤵
            • Suspicious use of WriteProcessMemory
            PID:2300
            • C:\Windows\SysWOW64\net1.exe
              C:\Windows\system32\net1 start serviceupdater
              3⤵
                PID:1780
          • 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:1988
          • C:\Windows\SysWOW64\netupdsrv.exe
            C:\Windows\SysWOW64\netupdsrv.exe
            1⤵
            • Executes dropped EXE
            PID:1784

          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\nscD9E.tmp\System.dll
            Filesize

            11KB

            MD5

            c17103ae9072a06da581dec998343fc1

            SHA1

            b72148c6bdfaada8b8c3f950e610ee7cf1da1f8d

            SHA256

            dc58d8ad81cacb0c1ed72e33bff8f23ea40b5252b5bb55d393a0903e6819ae2f

            SHA512

            d32a71aaef18e993f28096d536e41c4d016850721b31171513ce28bbd805a54fd290b7c3e9d935f72e676a1acfb4f0dcc89d95040a0dd29f2b6975855c18986f

          • C:\Users\Admin\AppData\Local\Temp\nscD9E.tmp\nsExec.dll
            Filesize

            6KB

            MD5

            acc2b699edfea5bf5aae45aba3a41e96

            SHA1

            d2accf4d494e43ceb2cff69abe4dd17147d29cc2

            SHA256

            168a974eaa3f588d759db3f47c1a9fdc3494ba1fa1a73a84e5e3b2a4d58abd7e

            SHA512

            e29ea10ada98c71a18273b04f44f385b120d4e8473e441ce5748cfa44a23648814f2656f429b85440157988c88de776c6ac008dc38bf09cbb746c230a46c69fe

          • C:\Users\Admin\AppData\Local\Temp\nscD9E.tmp\nsExec.dll
            Filesize

            6KB

            MD5

            acc2b699edfea5bf5aae45aba3a41e96

            SHA1

            d2accf4d494e43ceb2cff69abe4dd17147d29cc2

            SHA256

            168a974eaa3f588d759db3f47c1a9fdc3494ba1fa1a73a84e5e3b2a4d58abd7e

            SHA512

            e29ea10ada98c71a18273b04f44f385b120d4e8473e441ce5748cfa44a23648814f2656f429b85440157988c88de776c6ac008dc38bf09cbb746c230a46c69fe

          • C:\Users\Admin\AppData\Local\Temp\nscD9E.tmp\nsExec.dll
            Filesize

            6KB

            MD5

            acc2b699edfea5bf5aae45aba3a41e96

            SHA1

            d2accf4d494e43ceb2cff69abe4dd17147d29cc2

            SHA256

            168a974eaa3f588d759db3f47c1a9fdc3494ba1fa1a73a84e5e3b2a4d58abd7e

            SHA512

            e29ea10ada98c71a18273b04f44f385b120d4e8473e441ce5748cfa44a23648814f2656f429b85440157988c88de776c6ac008dc38bf09cbb746c230a46c69fe

          • C:\Users\Admin\AppData\Local\Temp\nscD9E.tmp\nsExec.dll
            Filesize

            6KB

            MD5

            acc2b699edfea5bf5aae45aba3a41e96

            SHA1

            d2accf4d494e43ceb2cff69abe4dd17147d29cc2

            SHA256

            168a974eaa3f588d759db3f47c1a9fdc3494ba1fa1a73a84e5e3b2a4d58abd7e

            SHA512

            e29ea10ada98c71a18273b04f44f385b120d4e8473e441ce5748cfa44a23648814f2656f429b85440157988c88de776c6ac008dc38bf09cbb746c230a46c69fe

          • C:\Users\Admin\AppData\Local\Temp\nscD9E.tmp\nsExec.dll
            Filesize

            6KB

            MD5

            acc2b699edfea5bf5aae45aba3a41e96

            SHA1

            d2accf4d494e43ceb2cff69abe4dd17147d29cc2

            SHA256

            168a974eaa3f588d759db3f47c1a9fdc3494ba1fa1a73a84e5e3b2a4d58abd7e

            SHA512

            e29ea10ada98c71a18273b04f44f385b120d4e8473e441ce5748cfa44a23648814f2656f429b85440157988c88de776c6ac008dc38bf09cbb746c230a46c69fe

          • C:\Users\Admin\AppData\Local\Temp\nscD9E.tmp\nsExec.dll
            Filesize

            6KB

            MD5

            acc2b699edfea5bf5aae45aba3a41e96

            SHA1

            d2accf4d494e43ceb2cff69abe4dd17147d29cc2

            SHA256

            168a974eaa3f588d759db3f47c1a9fdc3494ba1fa1a73a84e5e3b2a4d58abd7e

            SHA512

            e29ea10ada98c71a18273b04f44f385b120d4e8473e441ce5748cfa44a23648814f2656f429b85440157988c88de776c6ac008dc38bf09cbb746c230a46c69fe

          • C:\Users\Admin\AppData\Local\Temp\nscD9E.tmp\nsExec.dll
            Filesize

            6KB

            MD5

            acc2b699edfea5bf5aae45aba3a41e96

            SHA1

            d2accf4d494e43ceb2cff69abe4dd17147d29cc2

            SHA256

            168a974eaa3f588d759db3f47c1a9fdc3494ba1fa1a73a84e5e3b2a4d58abd7e

            SHA512

            e29ea10ada98c71a18273b04f44f385b120d4e8473e441ce5748cfa44a23648814f2656f429b85440157988c88de776c6ac008dc38bf09cbb746c230a46c69fe

          • C:\Users\Admin\AppData\Local\Temp\nscD9E.tmp\nsExec.dll
            Filesize

            6KB

            MD5

            acc2b699edfea5bf5aae45aba3a41e96

            SHA1

            d2accf4d494e43ceb2cff69abe4dd17147d29cc2

            SHA256

            168a974eaa3f588d759db3f47c1a9fdc3494ba1fa1a73a84e5e3b2a4d58abd7e

            SHA512

            e29ea10ada98c71a18273b04f44f385b120d4e8473e441ce5748cfa44a23648814f2656f429b85440157988c88de776c6ac008dc38bf09cbb746c230a46c69fe

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

            106KB

            MD5

            154b87bc16e0af6f7412b618d695ae53

            SHA1

            41d2ccb7978f521017bdb6135460c51e7c4df315

            SHA256

            b00fe484a3fa9c8044bf34c74d8a193a1c010196c0b1333c4271a3d0e0e7e960

            SHA512

            b396930ebafe02865b4246c6d077663801dd87330cbd6b0e28975a0cb505e28e1c803467f9ba2b233830e01d40ed4f27594c418778a4213536a864b89ef11880

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

            106KB

            MD5

            154b87bc16e0af6f7412b618d695ae53

            SHA1

            41d2ccb7978f521017bdb6135460c51e7c4df315

            SHA256

            b00fe484a3fa9c8044bf34c74d8a193a1c010196c0b1333c4271a3d0e0e7e960

            SHA512

            b396930ebafe02865b4246c6d077663801dd87330cbd6b0e28975a0cb505e28e1c803467f9ba2b233830e01d40ed4f27594c418778a4213536a864b89ef11880

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

            106KB

            MD5

            154b87bc16e0af6f7412b618d695ae53

            SHA1

            41d2ccb7978f521017bdb6135460c51e7c4df315

            SHA256

            b00fe484a3fa9c8044bf34c74d8a193a1c010196c0b1333c4271a3d0e0e7e960

            SHA512

            b396930ebafe02865b4246c6d077663801dd87330cbd6b0e28975a0cb505e28e1c803467f9ba2b233830e01d40ed4f27594c418778a4213536a864b89ef11880

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

            106KB

            MD5

            154b87bc16e0af6f7412b618d695ae53

            SHA1

            41d2ccb7978f521017bdb6135460c51e7c4df315

            SHA256

            b00fe484a3fa9c8044bf34c74d8a193a1c010196c0b1333c4271a3d0e0e7e960

            SHA512

            b396930ebafe02865b4246c6d077663801dd87330cbd6b0e28975a0cb505e28e1c803467f9ba2b233830e01d40ed4f27594c418778a4213536a864b89ef11880

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

            241KB

            MD5

            b7cd9ce39e2fd32e2fde26f7b8cdca73

            SHA1

            7e27444f92c08edee8c5b36e3f6a64324be5feba

            SHA256

            47e547663d89899d9e113b9cb2dc40289b54a82c1f32d7cdf1fa3c91699a98c3

            SHA512

            8f5deb7a17fc9e5579060bc021ceedb1f1a9ae629ce48b32594d884ac90ec94761e48ce02956b77433d15203fb68049feff3fccfd41852f61091a58ece942aea

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

            241KB

            MD5

            b7cd9ce39e2fd32e2fde26f7b8cdca73

            SHA1

            7e27444f92c08edee8c5b36e3f6a64324be5feba

            SHA256

            47e547663d89899d9e113b9cb2dc40289b54a82c1f32d7cdf1fa3c91699a98c3

            SHA512

            8f5deb7a17fc9e5579060bc021ceedb1f1a9ae629ce48b32594d884ac90ec94761e48ce02956b77433d15203fb68049feff3fccfd41852f61091a58ece942aea

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

            241KB

            MD5

            b7cd9ce39e2fd32e2fde26f7b8cdca73

            SHA1

            7e27444f92c08edee8c5b36e3f6a64324be5feba

            SHA256

            47e547663d89899d9e113b9cb2dc40289b54a82c1f32d7cdf1fa3c91699a98c3

            SHA512

            8f5deb7a17fc9e5579060bc021ceedb1f1a9ae629ce48b32594d884ac90ec94761e48ce02956b77433d15203fb68049feff3fccfd41852f61091a58ece942aea

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

            108KB

            MD5

            c70477846078c35abdbc97ece55045bf

            SHA1

            d54ed2f1516ee5a908a43e92861bf33e496e775a

            SHA256

            0864aa05ac1e1ce2d69ac0dcd40f660686f39c3dc314b47f3f1478e6bc43b8f7

            SHA512

            2a3facd2dc10a0a52fd06122d200381c9b9d35fe31777bef751c18e9527ec6e0ecbb29b6451512d5bee84f6328f949dab5656a7df185cf8e0d171bf104705163

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

            108KB

            MD5

            c70477846078c35abdbc97ece55045bf

            SHA1

            d54ed2f1516ee5a908a43e92861bf33e496e775a

            SHA256

            0864aa05ac1e1ce2d69ac0dcd40f660686f39c3dc314b47f3f1478e6bc43b8f7

            SHA512

            2a3facd2dc10a0a52fd06122d200381c9b9d35fe31777bef751c18e9527ec6e0ecbb29b6451512d5bee84f6328f949dab5656a7df185cf8e0d171bf104705163

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

            176KB

            MD5

            4b6311b80a8e7f5a97b22443071616a4

            SHA1

            d08f0b49b7b3f4930dc2a8eb1a009b956b988d26

            SHA256

            aca26129463d5a90fe512292a1a0b3cfcfc292ffc9fe7cd1c7ad4be979f250f1

            SHA512

            034125cf00a1d8acbd85ed018392443063ee707bda27cede982fffb12b723b7d6cad5f52e6767f237c695ec44a916fcf088a0895f99a97d9801282b90c7bfe74

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

            176KB

            MD5

            4b6311b80a8e7f5a97b22443071616a4

            SHA1

            d08f0b49b7b3f4930dc2a8eb1a009b956b988d26

            SHA256

            aca26129463d5a90fe512292a1a0b3cfcfc292ffc9fe7cd1c7ad4be979f250f1

            SHA512

            034125cf00a1d8acbd85ed018392443063ee707bda27cede982fffb12b723b7d6cad5f52e6767f237c695ec44a916fcf088a0895f99a97d9801282b90c7bfe74

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

            176KB

            MD5

            4b6311b80a8e7f5a97b22443071616a4

            SHA1

            d08f0b49b7b3f4930dc2a8eb1a009b956b988d26

            SHA256

            aca26129463d5a90fe512292a1a0b3cfcfc292ffc9fe7cd1c7ad4be979f250f1

            SHA512

            034125cf00a1d8acbd85ed018392443063ee707bda27cede982fffb12b723b7d6cad5f52e6767f237c695ec44a916fcf088a0895f99a97d9801282b90c7bfe74

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

            158KB

            MD5

            d97585ee9e1fb29d298cf03b9ade148d

            SHA1

            5644946df7056c0a3b00056119d860e7bfbaac22

            SHA256

            8773bd109ef055c728e73c0592f8fcc29ffbcc05b292b9235ee47982a07b1a9a

            SHA512

            db0cb28596f6cccba3b8b3d5c4289c78b0d9a8899590f6dcc434d21da43816f1d30a21481986d1a9e193dddf9d0a05263d1ad4359d54125e3c3c247b76704736

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

            158KB

            MD5

            d97585ee9e1fb29d298cf03b9ade148d

            SHA1

            5644946df7056c0a3b00056119d860e7bfbaac22

            SHA256

            8773bd109ef055c728e73c0592f8fcc29ffbcc05b292b9235ee47982a07b1a9a

            SHA512

            db0cb28596f6cccba3b8b3d5c4289c78b0d9a8899590f6dcc434d21da43816f1d30a21481986d1a9e193dddf9d0a05263d1ad4359d54125e3c3c247b76704736

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

            158KB

            MD5

            d97585ee9e1fb29d298cf03b9ade148d

            SHA1

            5644946df7056c0a3b00056119d860e7bfbaac22

            SHA256

            8773bd109ef055c728e73c0592f8fcc29ffbcc05b292b9235ee47982a07b1a9a

            SHA512

            db0cb28596f6cccba3b8b3d5c4289c78b0d9a8899590f6dcc434d21da43816f1d30a21481986d1a9e193dddf9d0a05263d1ad4359d54125e3c3c247b76704736

          • memory/544-141-0x0000000000000000-mapping.dmp
          • memory/1780-167-0x0000000000000000-mapping.dmp
          • memory/1844-132-0x0000000000360000-0x00000000007BE000-memory.dmp
            Filesize

            4.4MB

          • memory/1844-153-0x0000000000360000-0x00000000007BE000-memory.dmp
            Filesize

            4.4MB

          • memory/1844-169-0x0000000000360000-0x00000000007BE000-memory.dmp
            Filesize

            4.4MB

          • memory/2300-166-0x0000000000000000-mapping.dmp
          • memory/2452-147-0x0000000000000000-mapping.dmp
          • memory/2592-142-0x0000000000000000-mapping.dmp
          • memory/3312-140-0x0000000000000000-mapping.dmp
          • memory/3928-159-0x0000000000000000-mapping.dmp
          • memory/4124-136-0x0000000000000000-mapping.dmp
          • memory/4196-154-0x0000000000000000-mapping.dmp
          • memory/4780-160-0x0000000000000000-mapping.dmp
          • memory/4912-137-0x0000000000000000-mapping.dmp