Analysis

  • max time kernel
    140s
  • max time network
    154s
  • 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 10:53

General

  • Target

    a4dede9eed037260a2451135a2ee817f0c988ab316bac943d2b796ca2dc5b66a.exe

  • Size

    447KB

  • MD5

    e822247039d2e27d6741fbd90499daab

  • SHA1

    e74dff3cd978dabdef25e50edf1c03c710ce56d8

  • SHA256

    a4dede9eed037260a2451135a2ee817f0c988ab316bac943d2b796ca2dc5b66a

  • SHA512

    9074576cf96a3a1a2b5aa1101ae9e9e12619f1fce7784f5cf26bba1afcc91aa5286c50676ba524274d2d5a0869833f8d4d32354029931c38924a90908f037ad1

  • SSDEEP

    6144:XzfHWpBHmuL5nYEL8mAnRKvgpyD+jCp+sbbbEJ8scfBOcyqbLpqxaFc7wJuddvRa:7KmuL5RLbARKv3DuCfVfB3yqbqwuZrm

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\a4dede9eed037260a2451135a2ee817f0c988ab316bac943d2b796ca2dc5b66a.exe
    "C:\Users\Admin\AppData\Local\Temp\a4dede9eed037260a2451135a2ee817f0c988ab316bac943d2b796ca2dc5b66a.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:4844
    • C:\Windows\SysWOW64\net.exe
      net stop nethttpservice
      2⤵
      • Suspicious use of WriteProcessMemory
      PID:2620
      • C:\Windows\SysWOW64\net1.exe
        C:\Windows\system32\net1 stop nethttpservice
        3⤵
          PID:1424
      • C:\Windows\SysWOW64\net.exe
        net stop serviceupdater
        2⤵
        • Suspicious use of WriteProcessMemory
        PID:4968
        • C:\Windows\SysWOW64\net1.exe
          C:\Windows\system32\net1 stop serviceupdater
          3⤵
            PID:4588
        • C:\Windows\SysWOW64\installd.exe
          "C:\Windows\system32\installd.exe" nethfdrv
          2⤵
          • Executes dropped EXE
          • Loads dropped DLL
          PID:2268
        • C:\Windows\SysWOW64\nethtsrv.exe
          "C:\Windows\system32\nethtsrv.exe" -nfdi
          2⤵
          • Executes dropped EXE
          • Loads dropped DLL
          PID:532
        • C:\Windows\SysWOW64\netupdsrv.exe
          "C:\Windows\system32\netupdsrv.exe" -nfdi
          2⤵
          • Executes dropped EXE
          PID:1048
        • C:\Windows\SysWOW64\net.exe
          net start nethttpservice
          2⤵
          • Suspicious use of WriteProcessMemory
          PID:4920
          • C:\Windows\SysWOW64\net1.exe
            C:\Windows\system32\net1 start nethttpservice
            3⤵
              PID:4904
          • C:\Windows\SysWOW64\net.exe
            net start serviceupdater
            2⤵
            • Suspicious use of WriteProcessMemory
            PID:4636
            • C:\Windows\SysWOW64\net1.exe
              C:\Windows\system32\net1 start serviceupdater
              3⤵
                PID:3956
          • 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:2204
          • C:\Windows\SysWOW64\netupdsrv.exe
            C:\Windows\SysWOW64\netupdsrv.exe
            1⤵
            • Executes dropped EXE
            PID:3660

          Network

          MITRE ATT&CK Enterprise v6

          Replay Monitor

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          Downloads

          • C:\Users\Admin\AppData\Local\Temp\nsb9987.tmp\System.dll

            Filesize

            11KB

            MD5

            c17103ae9072a06da581dec998343fc1

            SHA1

            b72148c6bdfaada8b8c3f950e610ee7cf1da1f8d

            SHA256

            dc58d8ad81cacb0c1ed72e33bff8f23ea40b5252b5bb55d393a0903e6819ae2f

            SHA512

            d32a71aaef18e993f28096d536e41c4d016850721b31171513ce28bbd805a54fd290b7c3e9d935f72e676a1acfb4f0dcc89d95040a0dd29f2b6975855c18986f

          • C:\Users\Admin\AppData\Local\Temp\nsb9987.tmp\nsExec.dll

            Filesize

            6KB

            MD5

            acc2b699edfea5bf5aae45aba3a41e96

            SHA1

            d2accf4d494e43ceb2cff69abe4dd17147d29cc2

            SHA256

            168a974eaa3f588d759db3f47c1a9fdc3494ba1fa1a73a84e5e3b2a4d58abd7e

            SHA512

            e29ea10ada98c71a18273b04f44f385b120d4e8473e441ce5748cfa44a23648814f2656f429b85440157988c88de776c6ac008dc38bf09cbb746c230a46c69fe

          • C:\Users\Admin\AppData\Local\Temp\nsb9987.tmp\nsExec.dll

            Filesize

            6KB

            MD5

            acc2b699edfea5bf5aae45aba3a41e96

            SHA1

            d2accf4d494e43ceb2cff69abe4dd17147d29cc2

            SHA256

            168a974eaa3f588d759db3f47c1a9fdc3494ba1fa1a73a84e5e3b2a4d58abd7e

            SHA512

            e29ea10ada98c71a18273b04f44f385b120d4e8473e441ce5748cfa44a23648814f2656f429b85440157988c88de776c6ac008dc38bf09cbb746c230a46c69fe

          • C:\Users\Admin\AppData\Local\Temp\nsb9987.tmp\nsExec.dll

            Filesize

            6KB

            MD5

            acc2b699edfea5bf5aae45aba3a41e96

            SHA1

            d2accf4d494e43ceb2cff69abe4dd17147d29cc2

            SHA256

            168a974eaa3f588d759db3f47c1a9fdc3494ba1fa1a73a84e5e3b2a4d58abd7e

            SHA512

            e29ea10ada98c71a18273b04f44f385b120d4e8473e441ce5748cfa44a23648814f2656f429b85440157988c88de776c6ac008dc38bf09cbb746c230a46c69fe

          • C:\Users\Admin\AppData\Local\Temp\nsb9987.tmp\nsExec.dll

            Filesize

            6KB

            MD5

            acc2b699edfea5bf5aae45aba3a41e96

            SHA1

            d2accf4d494e43ceb2cff69abe4dd17147d29cc2

            SHA256

            168a974eaa3f588d759db3f47c1a9fdc3494ba1fa1a73a84e5e3b2a4d58abd7e

            SHA512

            e29ea10ada98c71a18273b04f44f385b120d4e8473e441ce5748cfa44a23648814f2656f429b85440157988c88de776c6ac008dc38bf09cbb746c230a46c69fe

          • C:\Users\Admin\AppData\Local\Temp\nsb9987.tmp\nsExec.dll

            Filesize

            6KB

            MD5

            acc2b699edfea5bf5aae45aba3a41e96

            SHA1

            d2accf4d494e43ceb2cff69abe4dd17147d29cc2

            SHA256

            168a974eaa3f588d759db3f47c1a9fdc3494ba1fa1a73a84e5e3b2a4d58abd7e

            SHA512

            e29ea10ada98c71a18273b04f44f385b120d4e8473e441ce5748cfa44a23648814f2656f429b85440157988c88de776c6ac008dc38bf09cbb746c230a46c69fe

          • C:\Users\Admin\AppData\Local\Temp\nsb9987.tmp\nsExec.dll

            Filesize

            6KB

            MD5

            acc2b699edfea5bf5aae45aba3a41e96

            SHA1

            d2accf4d494e43ceb2cff69abe4dd17147d29cc2

            SHA256

            168a974eaa3f588d759db3f47c1a9fdc3494ba1fa1a73a84e5e3b2a4d58abd7e

            SHA512

            e29ea10ada98c71a18273b04f44f385b120d4e8473e441ce5748cfa44a23648814f2656f429b85440157988c88de776c6ac008dc38bf09cbb746c230a46c69fe

          • C:\Users\Admin\AppData\Local\Temp\nsb9987.tmp\nsExec.dll

            Filesize

            6KB

            MD5

            acc2b699edfea5bf5aae45aba3a41e96

            SHA1

            d2accf4d494e43ceb2cff69abe4dd17147d29cc2

            SHA256

            168a974eaa3f588d759db3f47c1a9fdc3494ba1fa1a73a84e5e3b2a4d58abd7e

            SHA512

            e29ea10ada98c71a18273b04f44f385b120d4e8473e441ce5748cfa44a23648814f2656f429b85440157988c88de776c6ac008dc38bf09cbb746c230a46c69fe

          • C:\Users\Admin\AppData\Local\Temp\nsb9987.tmp\nsExec.dll

            Filesize

            6KB

            MD5

            acc2b699edfea5bf5aae45aba3a41e96

            SHA1

            d2accf4d494e43ceb2cff69abe4dd17147d29cc2

            SHA256

            168a974eaa3f588d759db3f47c1a9fdc3494ba1fa1a73a84e5e3b2a4d58abd7e

            SHA512

            e29ea10ada98c71a18273b04f44f385b120d4e8473e441ce5748cfa44a23648814f2656f429b85440157988c88de776c6ac008dc38bf09cbb746c230a46c69fe

          • C:\Windows\SysWOW64\hfnapi.dll

            Filesize

            106KB

            MD5

            032e245d1c2f1da89bdffc162e3a7d28

            SHA1

            1c9f196d3989323035b6d924a1c06a6c802bb468

            SHA256

            2bead7b0bccffd2433442ed7eee96b074f87d1bbaf8340d2809c1f477afb5bb0

            SHA512

            afc3de2c7c235069165f84a57c15f8a626c43b974cf45ac092e83202a31ee984e22f9c054f3d4c21efda2c2e92dead8f01779520ad7cbfd322820a242b9a074e

          • C:\Windows\SysWOW64\hfnapi.dll

            Filesize

            106KB

            MD5

            032e245d1c2f1da89bdffc162e3a7d28

            SHA1

            1c9f196d3989323035b6d924a1c06a6c802bb468

            SHA256

            2bead7b0bccffd2433442ed7eee96b074f87d1bbaf8340d2809c1f477afb5bb0

            SHA512

            afc3de2c7c235069165f84a57c15f8a626c43b974cf45ac092e83202a31ee984e22f9c054f3d4c21efda2c2e92dead8f01779520ad7cbfd322820a242b9a074e

          • C:\Windows\SysWOW64\hfnapi.dll

            Filesize

            106KB

            MD5

            032e245d1c2f1da89bdffc162e3a7d28

            SHA1

            1c9f196d3989323035b6d924a1c06a6c802bb468

            SHA256

            2bead7b0bccffd2433442ed7eee96b074f87d1bbaf8340d2809c1f477afb5bb0

            SHA512

            afc3de2c7c235069165f84a57c15f8a626c43b974cf45ac092e83202a31ee984e22f9c054f3d4c21efda2c2e92dead8f01779520ad7cbfd322820a242b9a074e

          • C:\Windows\SysWOW64\hfnapi.dll

            Filesize

            106KB

            MD5

            032e245d1c2f1da89bdffc162e3a7d28

            SHA1

            1c9f196d3989323035b6d924a1c06a6c802bb468

            SHA256

            2bead7b0bccffd2433442ed7eee96b074f87d1bbaf8340d2809c1f477afb5bb0

            SHA512

            afc3de2c7c235069165f84a57c15f8a626c43b974cf45ac092e83202a31ee984e22f9c054f3d4c21efda2c2e92dead8f01779520ad7cbfd322820a242b9a074e

          • C:\Windows\SysWOW64\hfpapi.dll

            Filesize

            244KB

            MD5

            0e3f7d49f914eba5b02f1d88aef5f779

            SHA1

            b296e6a19b37e3dca4a4e7cc348b8939e7ee3251

            SHA256

            1a37ba323cf68f80b800e3d4ddaf91a73dc57fde7ee2088378d7f16879e5f8d3

            SHA512

            3602796232a6102cc5d493b6febb4409bdd34b7be14662e8d64f68a5b0ff5fed33b24a1ccc9ed6396f6ec92a07e3d9028bb9528a9486362dbe940f13bcb4e71c

          • C:\Windows\SysWOW64\hfpapi.dll

            Filesize

            244KB

            MD5

            0e3f7d49f914eba5b02f1d88aef5f779

            SHA1

            b296e6a19b37e3dca4a4e7cc348b8939e7ee3251

            SHA256

            1a37ba323cf68f80b800e3d4ddaf91a73dc57fde7ee2088378d7f16879e5f8d3

            SHA512

            3602796232a6102cc5d493b6febb4409bdd34b7be14662e8d64f68a5b0ff5fed33b24a1ccc9ed6396f6ec92a07e3d9028bb9528a9486362dbe940f13bcb4e71c

          • C:\Windows\SysWOW64\hfpapi.dll

            Filesize

            244KB

            MD5

            0e3f7d49f914eba5b02f1d88aef5f779

            SHA1

            b296e6a19b37e3dca4a4e7cc348b8939e7ee3251

            SHA256

            1a37ba323cf68f80b800e3d4ddaf91a73dc57fde7ee2088378d7f16879e5f8d3

            SHA512

            3602796232a6102cc5d493b6febb4409bdd34b7be14662e8d64f68a5b0ff5fed33b24a1ccc9ed6396f6ec92a07e3d9028bb9528a9486362dbe940f13bcb4e71c

          • C:\Windows\SysWOW64\installd.exe

            Filesize

            108KB

            MD5

            963aa7bd80ae770590480281f9b7af5a

            SHA1

            fc3d76d5af6c4eeef9583c1b5228d87fe9f15814

            SHA256

            6d0f21b1e0c84c470a947e6db8f0265cdd84f7946a18f2465b311e16d55d93ef

            SHA512

            9d717fdf5e863178a068db40fa2727e00a9db59dbd07bfbf4c224442891d0c65e78cf0f5235b4654297fb78491bfcc00bb0eeab9565a2587b4266dae33996d9b

          • C:\Windows\SysWOW64\installd.exe

            Filesize

            108KB

            MD5

            963aa7bd80ae770590480281f9b7af5a

            SHA1

            fc3d76d5af6c4eeef9583c1b5228d87fe9f15814

            SHA256

            6d0f21b1e0c84c470a947e6db8f0265cdd84f7946a18f2465b311e16d55d93ef

            SHA512

            9d717fdf5e863178a068db40fa2727e00a9db59dbd07bfbf4c224442891d0c65e78cf0f5235b4654297fb78491bfcc00bb0eeab9565a2587b4266dae33996d9b

          • C:\Windows\SysWOW64\nethtsrv.exe

            Filesize

            176KB

            MD5

            99b2f61ea2df51268b88ef3bafdb1f25

            SHA1

            945a7c353dd18dc19b1836de8f926664def6d673

            SHA256

            053734b5c1fedea49fe99bbb216baa206cf2439e9be7a3f30d713c2d9fff8702

            SHA512

            3163d78c5fd15eb9154b0c8c7c2a8196f2ff6053ca93f5262fe19cedcb238192185008f00ebc1e1449f10c7c47007ca42fa344f39bbcb81d4a698f828f15bbd3

          • C:\Windows\SysWOW64\nethtsrv.exe

            Filesize

            176KB

            MD5

            99b2f61ea2df51268b88ef3bafdb1f25

            SHA1

            945a7c353dd18dc19b1836de8f926664def6d673

            SHA256

            053734b5c1fedea49fe99bbb216baa206cf2439e9be7a3f30d713c2d9fff8702

            SHA512

            3163d78c5fd15eb9154b0c8c7c2a8196f2ff6053ca93f5262fe19cedcb238192185008f00ebc1e1449f10c7c47007ca42fa344f39bbcb81d4a698f828f15bbd3

          • C:\Windows\SysWOW64\nethtsrv.exe

            Filesize

            176KB

            MD5

            99b2f61ea2df51268b88ef3bafdb1f25

            SHA1

            945a7c353dd18dc19b1836de8f926664def6d673

            SHA256

            053734b5c1fedea49fe99bbb216baa206cf2439e9be7a3f30d713c2d9fff8702

            SHA512

            3163d78c5fd15eb9154b0c8c7c2a8196f2ff6053ca93f5262fe19cedcb238192185008f00ebc1e1449f10c7c47007ca42fa344f39bbcb81d4a698f828f15bbd3

          • C:\Windows\SysWOW64\netupdsrv.exe

            Filesize

            159KB

            MD5

            a71d74f74f77435bfd6ef926e99bfe74

            SHA1

            169c47506a86ae815bb4c94b649bee1c3805e91e

            SHA256

            5523f37a3dd4a9a82cd70e3712c9c3436a500c5b97c9962eea4b70946b4698dc

            SHA512

            2f21873f29186ad936683aedaebdb2c15541d59d353fc30ea8f0d19b4fbd2eb5daaf19a1f203a2ad8a50108b0527a43c10798783736388c3c2c57f035f6eb372

          • C:\Windows\SysWOW64\netupdsrv.exe

            Filesize

            159KB

            MD5

            a71d74f74f77435bfd6ef926e99bfe74

            SHA1

            169c47506a86ae815bb4c94b649bee1c3805e91e

            SHA256

            5523f37a3dd4a9a82cd70e3712c9c3436a500c5b97c9962eea4b70946b4698dc

            SHA512

            2f21873f29186ad936683aedaebdb2c15541d59d353fc30ea8f0d19b4fbd2eb5daaf19a1f203a2ad8a50108b0527a43c10798783736388c3c2c57f035f6eb372

          • C:\Windows\SysWOW64\netupdsrv.exe

            Filesize

            159KB

            MD5

            a71d74f74f77435bfd6ef926e99bfe74

            SHA1

            169c47506a86ae815bb4c94b649bee1c3805e91e

            SHA256

            5523f37a3dd4a9a82cd70e3712c9c3436a500c5b97c9962eea4b70946b4698dc

            SHA512

            2f21873f29186ad936683aedaebdb2c15541d59d353fc30ea8f0d19b4fbd2eb5daaf19a1f203a2ad8a50108b0527a43c10798783736388c3c2c57f035f6eb372

          • memory/532-146-0x0000000000000000-mapping.dmp

          • memory/1048-152-0x0000000000000000-mapping.dmp

          • memory/1424-136-0x0000000000000000-mapping.dmp

          • memory/2268-141-0x0000000000000000-mapping.dmp

          • memory/2620-135-0x0000000000000000-mapping.dmp

          • memory/3956-165-0x0000000000000000-mapping.dmp

          • memory/4588-140-0x0000000000000000-mapping.dmp

          • memory/4636-164-0x0000000000000000-mapping.dmp

          • memory/4904-158-0x0000000000000000-mapping.dmp

          • memory/4920-157-0x0000000000000000-mapping.dmp

          • memory/4968-139-0x0000000000000000-mapping.dmp