Analysis

  • max time kernel
    165s
  • 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 10:52

General

  • Target

    b29ae9f7ce3670562e9cba1ee4dda1db172287a1b221b5db325b7801d0a2bbef.exe

  • Size

    446KB

  • MD5

    504b3877186b4dd01d4709c860b547fc

  • SHA1

    2c17fe6ba55b8d9f2c2ade844c5f0701453a9b52

  • SHA256

    b29ae9f7ce3670562e9cba1ee4dda1db172287a1b221b5db325b7801d0a2bbef

  • SHA512

    85020d8b469cafd56b9031b7e988d2637693267e82de503c581b96e7224ae826ef024f3902d86a83266b9ac4dd2cb161b3a3109ba7aea10bbd51822966e5985d

  • SSDEEP

    12288:AUPDV600RzplJi6bcWcOMsxxNG8JTPUMQ:AUbcNs6+MxNdJgJ

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\b29ae9f7ce3670562e9cba1ee4dda1db172287a1b221b5db325b7801d0a2bbef.exe
    "C:\Users\Admin\AppData\Local\Temp\b29ae9f7ce3670562e9cba1ee4dda1db172287a1b221b5db325b7801d0a2bbef.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:2780
    • C:\Windows\SysWOW64\net.exe
      net stop nethttpservice
      2⤵
      • Suspicious use of WriteProcessMemory
      PID:1508
      • C:\Windows\SysWOW64\net1.exe
        C:\Windows\system32\net1 stop nethttpservice
        3⤵
          PID:1852
      • C:\Windows\SysWOW64\net.exe
        net stop serviceupdater
        2⤵
        • Suspicious use of WriteProcessMemory
        PID:1540
        • C:\Windows\SysWOW64\net1.exe
          C:\Windows\system32\net1 stop serviceupdater
          3⤵
            PID:4444
        • C:\Windows\SysWOW64\installd.exe
          "C:\Windows\system32\installd.exe" nethfdrv
          2⤵
          • Executes dropped EXE
          • Loads dropped DLL
          PID:1352
        • C:\Windows\SysWOW64\nethtsrv.exe
          "C:\Windows\system32\nethtsrv.exe" -nfdi
          2⤵
          • Executes dropped EXE
          • Loads dropped DLL
          PID:220
        • C:\Windows\SysWOW64\netupdsrv.exe
          "C:\Windows\system32\netupdsrv.exe" -nfdi
          2⤵
          • Executes dropped EXE
          PID:3652
        • C:\Windows\SysWOW64\net.exe
          net start nethttpservice
          2⤵
          • Suspicious use of WriteProcessMemory
          PID:4512
          • C:\Windows\SysWOW64\net1.exe
            C:\Windows\system32\net1 start nethttpservice
            3⤵
              PID:4348
          • C:\Windows\SysWOW64\net.exe
            net start serviceupdater
            2⤵
            • Suspicious use of WriteProcessMemory
            PID:3872
            • C:\Windows\SysWOW64\net1.exe
              C:\Windows\system32\net1 start serviceupdater
              3⤵
                PID:1748
          • 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:3752
          • C:\Windows\SysWOW64\netupdsrv.exe
            C:\Windows\SysWOW64\netupdsrv.exe
            1⤵
            • Executes dropped EXE
            PID:1652

          Network

          MITRE ATT&CK Enterprise v6

          Replay Monitor

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          Downloads

          • C:\Users\Admin\AppData\Local\Temp\nsz5AF.tmp\System.dll

            Filesize

            11KB

            MD5

            c17103ae9072a06da581dec998343fc1

            SHA1

            b72148c6bdfaada8b8c3f950e610ee7cf1da1f8d

            SHA256

            dc58d8ad81cacb0c1ed72e33bff8f23ea40b5252b5bb55d393a0903e6819ae2f

            SHA512

            d32a71aaef18e993f28096d536e41c4d016850721b31171513ce28bbd805a54fd290b7c3e9d935f72e676a1acfb4f0dcc89d95040a0dd29f2b6975855c18986f

          • C:\Users\Admin\AppData\Local\Temp\nsz5AF.tmp\nsExec.dll

            Filesize

            6KB

            MD5

            acc2b699edfea5bf5aae45aba3a41e96

            SHA1

            d2accf4d494e43ceb2cff69abe4dd17147d29cc2

            SHA256

            168a974eaa3f588d759db3f47c1a9fdc3494ba1fa1a73a84e5e3b2a4d58abd7e

            SHA512

            e29ea10ada98c71a18273b04f44f385b120d4e8473e441ce5748cfa44a23648814f2656f429b85440157988c88de776c6ac008dc38bf09cbb746c230a46c69fe

          • C:\Users\Admin\AppData\Local\Temp\nsz5AF.tmp\nsExec.dll

            Filesize

            6KB

            MD5

            acc2b699edfea5bf5aae45aba3a41e96

            SHA1

            d2accf4d494e43ceb2cff69abe4dd17147d29cc2

            SHA256

            168a974eaa3f588d759db3f47c1a9fdc3494ba1fa1a73a84e5e3b2a4d58abd7e

            SHA512

            e29ea10ada98c71a18273b04f44f385b120d4e8473e441ce5748cfa44a23648814f2656f429b85440157988c88de776c6ac008dc38bf09cbb746c230a46c69fe

          • C:\Users\Admin\AppData\Local\Temp\nsz5AF.tmp\nsExec.dll

            Filesize

            6KB

            MD5

            acc2b699edfea5bf5aae45aba3a41e96

            SHA1

            d2accf4d494e43ceb2cff69abe4dd17147d29cc2

            SHA256

            168a974eaa3f588d759db3f47c1a9fdc3494ba1fa1a73a84e5e3b2a4d58abd7e

            SHA512

            e29ea10ada98c71a18273b04f44f385b120d4e8473e441ce5748cfa44a23648814f2656f429b85440157988c88de776c6ac008dc38bf09cbb746c230a46c69fe

          • C:\Users\Admin\AppData\Local\Temp\nsz5AF.tmp\nsExec.dll

            Filesize

            6KB

            MD5

            acc2b699edfea5bf5aae45aba3a41e96

            SHA1

            d2accf4d494e43ceb2cff69abe4dd17147d29cc2

            SHA256

            168a974eaa3f588d759db3f47c1a9fdc3494ba1fa1a73a84e5e3b2a4d58abd7e

            SHA512

            e29ea10ada98c71a18273b04f44f385b120d4e8473e441ce5748cfa44a23648814f2656f429b85440157988c88de776c6ac008dc38bf09cbb746c230a46c69fe

          • C:\Users\Admin\AppData\Local\Temp\nsz5AF.tmp\nsExec.dll

            Filesize

            6KB

            MD5

            acc2b699edfea5bf5aae45aba3a41e96

            SHA1

            d2accf4d494e43ceb2cff69abe4dd17147d29cc2

            SHA256

            168a974eaa3f588d759db3f47c1a9fdc3494ba1fa1a73a84e5e3b2a4d58abd7e

            SHA512

            e29ea10ada98c71a18273b04f44f385b120d4e8473e441ce5748cfa44a23648814f2656f429b85440157988c88de776c6ac008dc38bf09cbb746c230a46c69fe

          • C:\Users\Admin\AppData\Local\Temp\nsz5AF.tmp\nsExec.dll

            Filesize

            6KB

            MD5

            acc2b699edfea5bf5aae45aba3a41e96

            SHA1

            d2accf4d494e43ceb2cff69abe4dd17147d29cc2

            SHA256

            168a974eaa3f588d759db3f47c1a9fdc3494ba1fa1a73a84e5e3b2a4d58abd7e

            SHA512

            e29ea10ada98c71a18273b04f44f385b120d4e8473e441ce5748cfa44a23648814f2656f429b85440157988c88de776c6ac008dc38bf09cbb746c230a46c69fe

          • C:\Users\Admin\AppData\Local\Temp\nsz5AF.tmp\nsExec.dll

            Filesize

            6KB

            MD5

            acc2b699edfea5bf5aae45aba3a41e96

            SHA1

            d2accf4d494e43ceb2cff69abe4dd17147d29cc2

            SHA256

            168a974eaa3f588d759db3f47c1a9fdc3494ba1fa1a73a84e5e3b2a4d58abd7e

            SHA512

            e29ea10ada98c71a18273b04f44f385b120d4e8473e441ce5748cfa44a23648814f2656f429b85440157988c88de776c6ac008dc38bf09cbb746c230a46c69fe

          • C:\Users\Admin\AppData\Local\Temp\nsz5AF.tmp\nsExec.dll

            Filesize

            6KB

            MD5

            acc2b699edfea5bf5aae45aba3a41e96

            SHA1

            d2accf4d494e43ceb2cff69abe4dd17147d29cc2

            SHA256

            168a974eaa3f588d759db3f47c1a9fdc3494ba1fa1a73a84e5e3b2a4d58abd7e

            SHA512

            e29ea10ada98c71a18273b04f44f385b120d4e8473e441ce5748cfa44a23648814f2656f429b85440157988c88de776c6ac008dc38bf09cbb746c230a46c69fe

          • C:\Windows\SysWOW64\hfnapi.dll

            Filesize

            106KB

            MD5

            181720fcd7e104cd866ba361b8e734fa

            SHA1

            098fbe3e7e55ad65ef25a021dc5929318cc8887b

            SHA256

            e34863c9e4b91c2432292b3a5d7bc9f55e755bf5b87a6eec4e049d10ac86e8d0

            SHA512

            dff790cec38d8a0cf6b6fd21c0b3c9d16d589341e964c420f3af5c9a3387a12299e6995c0cb8b682998a438c6834ae8b4481f53f10a499cad7ae7e4427d0a8c2

          • C:\Windows\SysWOW64\hfnapi.dll

            Filesize

            106KB

            MD5

            181720fcd7e104cd866ba361b8e734fa

            SHA1

            098fbe3e7e55ad65ef25a021dc5929318cc8887b

            SHA256

            e34863c9e4b91c2432292b3a5d7bc9f55e755bf5b87a6eec4e049d10ac86e8d0

            SHA512

            dff790cec38d8a0cf6b6fd21c0b3c9d16d589341e964c420f3af5c9a3387a12299e6995c0cb8b682998a438c6834ae8b4481f53f10a499cad7ae7e4427d0a8c2

          • C:\Windows\SysWOW64\hfnapi.dll

            Filesize

            106KB

            MD5

            181720fcd7e104cd866ba361b8e734fa

            SHA1

            098fbe3e7e55ad65ef25a021dc5929318cc8887b

            SHA256

            e34863c9e4b91c2432292b3a5d7bc9f55e755bf5b87a6eec4e049d10ac86e8d0

            SHA512

            dff790cec38d8a0cf6b6fd21c0b3c9d16d589341e964c420f3af5c9a3387a12299e6995c0cb8b682998a438c6834ae8b4481f53f10a499cad7ae7e4427d0a8c2

          • C:\Windows\SysWOW64\hfnapi.dll

            Filesize

            106KB

            MD5

            181720fcd7e104cd866ba361b8e734fa

            SHA1

            098fbe3e7e55ad65ef25a021dc5929318cc8887b

            SHA256

            e34863c9e4b91c2432292b3a5d7bc9f55e755bf5b87a6eec4e049d10ac86e8d0

            SHA512

            dff790cec38d8a0cf6b6fd21c0b3c9d16d589341e964c420f3af5c9a3387a12299e6995c0cb8b682998a438c6834ae8b4481f53f10a499cad7ae7e4427d0a8c2

          • C:\Windows\SysWOW64\hfpapi.dll

            Filesize

            244KB

            MD5

            12bd7c787ae4bc3d815b64860e47e33f

            SHA1

            c3cbbb558a567de5741999a1d3a51951ff6adee1

            SHA256

            f37c2a90027682aaf1312e08e0e8f1b441274868a0b87dcec168035d976d7d9f

            SHA512

            c194cb866b5116ccff77662a682abba43a6e44be2a982baed2a4dab95ffc26e7590a7c6d37fc6a48a14fec840321fc94a7a90b9c1c11812a18e86d94b05472f9

          • C:\Windows\SysWOW64\hfpapi.dll

            Filesize

            244KB

            MD5

            12bd7c787ae4bc3d815b64860e47e33f

            SHA1

            c3cbbb558a567de5741999a1d3a51951ff6adee1

            SHA256

            f37c2a90027682aaf1312e08e0e8f1b441274868a0b87dcec168035d976d7d9f

            SHA512

            c194cb866b5116ccff77662a682abba43a6e44be2a982baed2a4dab95ffc26e7590a7c6d37fc6a48a14fec840321fc94a7a90b9c1c11812a18e86d94b05472f9

          • C:\Windows\SysWOW64\hfpapi.dll

            Filesize

            244KB

            MD5

            12bd7c787ae4bc3d815b64860e47e33f

            SHA1

            c3cbbb558a567de5741999a1d3a51951ff6adee1

            SHA256

            f37c2a90027682aaf1312e08e0e8f1b441274868a0b87dcec168035d976d7d9f

            SHA512

            c194cb866b5116ccff77662a682abba43a6e44be2a982baed2a4dab95ffc26e7590a7c6d37fc6a48a14fec840321fc94a7a90b9c1c11812a18e86d94b05472f9

          • C:\Windows\SysWOW64\installd.exe

            Filesize

            108KB

            MD5

            317f176f9cf2977fbca25403853a83e8

            SHA1

            c3c572d60c4922107c4b4b56987aa31041edc1da

            SHA256

            09fc99c6b0fb52eea6ac1f40ea65c10e00b5f2aa1bd07a69f3387d21f3a5d963

            SHA512

            3c4d886c6b7779d1abfdb704962a57bd1925513ddd1e80cb0490e027ca3ce0f1d8bd79403fddc52deb466e755ab5a699fb6db1dc64c7e164d06c18ba242f4933

          • C:\Windows\SysWOW64\installd.exe

            Filesize

            108KB

            MD5

            317f176f9cf2977fbca25403853a83e8

            SHA1

            c3c572d60c4922107c4b4b56987aa31041edc1da

            SHA256

            09fc99c6b0fb52eea6ac1f40ea65c10e00b5f2aa1bd07a69f3387d21f3a5d963

            SHA512

            3c4d886c6b7779d1abfdb704962a57bd1925513ddd1e80cb0490e027ca3ce0f1d8bd79403fddc52deb466e755ab5a699fb6db1dc64c7e164d06c18ba242f4933

          • C:\Windows\SysWOW64\nethtsrv.exe

            Filesize

            176KB

            MD5

            e49f89cd1850ffa01b98efacba9fade0

            SHA1

            e5e245a996e4f22efd6863879a673057ce04e3f0

            SHA256

            a182febae084701e5b2eeb66d85846dd09dedc7e43831e965a9d54882b9f1898

            SHA512

            1df0520b6b9f6a00fd1f2d3c97b961ae814d15900a3ca88f5619e40cdc1ac11872e603dfa3ac01393d6e85de21e47eae7238be39fe720b62e0786a2c496b7f6f

          • C:\Windows\SysWOW64\nethtsrv.exe

            Filesize

            176KB

            MD5

            e49f89cd1850ffa01b98efacba9fade0

            SHA1

            e5e245a996e4f22efd6863879a673057ce04e3f0

            SHA256

            a182febae084701e5b2eeb66d85846dd09dedc7e43831e965a9d54882b9f1898

            SHA512

            1df0520b6b9f6a00fd1f2d3c97b961ae814d15900a3ca88f5619e40cdc1ac11872e603dfa3ac01393d6e85de21e47eae7238be39fe720b62e0786a2c496b7f6f

          • C:\Windows\SysWOW64\nethtsrv.exe

            Filesize

            176KB

            MD5

            e49f89cd1850ffa01b98efacba9fade0

            SHA1

            e5e245a996e4f22efd6863879a673057ce04e3f0

            SHA256

            a182febae084701e5b2eeb66d85846dd09dedc7e43831e965a9d54882b9f1898

            SHA512

            1df0520b6b9f6a00fd1f2d3c97b961ae814d15900a3ca88f5619e40cdc1ac11872e603dfa3ac01393d6e85de21e47eae7238be39fe720b62e0786a2c496b7f6f

          • C:\Windows\SysWOW64\netupdsrv.exe

            Filesize

            158KB

            MD5

            d79b1f3f15866f108dbed9f554bc0272

            SHA1

            706d017a50a8cc00e50c92600adc8818eb070b1b

            SHA256

            2f219b83b6cf5c70bfea3df4019b7ef1f339133d1fae088bcaafa1968f68f0f2

            SHA512

            bc88bd8d871844efaf1d5cd84ca91d1438a8645e23929c6e4db06e2517520758082f6c971317c05e23eb0745022ebe55f248fa699257f7392a72fc931a843768

          • C:\Windows\SysWOW64\netupdsrv.exe

            Filesize

            158KB

            MD5

            d79b1f3f15866f108dbed9f554bc0272

            SHA1

            706d017a50a8cc00e50c92600adc8818eb070b1b

            SHA256

            2f219b83b6cf5c70bfea3df4019b7ef1f339133d1fae088bcaafa1968f68f0f2

            SHA512

            bc88bd8d871844efaf1d5cd84ca91d1438a8645e23929c6e4db06e2517520758082f6c971317c05e23eb0745022ebe55f248fa699257f7392a72fc931a843768

          • C:\Windows\SysWOW64\netupdsrv.exe

            Filesize

            158KB

            MD5

            d79b1f3f15866f108dbed9f554bc0272

            SHA1

            706d017a50a8cc00e50c92600adc8818eb070b1b

            SHA256

            2f219b83b6cf5c70bfea3df4019b7ef1f339133d1fae088bcaafa1968f68f0f2

            SHA512

            bc88bd8d871844efaf1d5cd84ca91d1438a8645e23929c6e4db06e2517520758082f6c971317c05e23eb0745022ebe55f248fa699257f7392a72fc931a843768

          • memory/220-146-0x0000000000000000-mapping.dmp

          • memory/1352-141-0x0000000000000000-mapping.dmp

          • memory/1508-135-0x0000000000000000-mapping.dmp

          • memory/1540-139-0x0000000000000000-mapping.dmp

          • memory/1748-165-0x0000000000000000-mapping.dmp

          • memory/1852-136-0x0000000000000000-mapping.dmp

          • memory/3652-152-0x0000000000000000-mapping.dmp

          • memory/3872-164-0x0000000000000000-mapping.dmp

          • memory/4348-158-0x0000000000000000-mapping.dmp

          • memory/4444-140-0x0000000000000000-mapping.dmp

          • memory/4512-157-0x0000000000000000-mapping.dmp