Analysis

  • max time kernel
    142s
  • max time network
    155s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20221111-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20221111-enlocale:en-usos:windows10-2004-x64system
  • submitted
    22/11/2022, 00:02

General

  • Target

    5d366c0fb784aeda311c635caf31279da17fddb8f70a30fe0f1d5255afbf6093.exe

  • Size

    602KB

  • MD5

    05239eb2cb528477354107e231b9629b

  • SHA1

    ceb65759138277df695cf04d7d6ea30ea3044915

  • SHA256

    5d366c0fb784aeda311c635caf31279da17fddb8f70a30fe0f1d5255afbf6093

  • SHA512

    a19da673c0ff2c811a8a6c9e724a86bd2cb9cd08d5ac8953d5c11767afd72bcd08b8ef9fc7ddb514783c269b7716158bdf8b54c8aaa3f0a51fb67f8b527affc6

  • SSDEEP

    12288:WIny5DYTtgkmZ0HkkkoMHcqICiAww+v6E6Eryo5e:YUTtgkmZtR7D3Gfe

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\5d366c0fb784aeda311c635caf31279da17fddb8f70a30fe0f1d5255afbf6093.exe
    "C:\Users\Admin\AppData\Local\Temp\5d366c0fb784aeda311c635caf31279da17fddb8f70a30fe0f1d5255afbf6093.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:4464
    • C:\Windows\SysWOW64\net.exe
      net stop nethttpservice
      2⤵
      • Suspicious use of WriteProcessMemory
      PID:3372
      • C:\Windows\SysWOW64\net1.exe
        C:\Windows\system32\net1 stop nethttpservice
        3⤵
          PID:4536
      • C:\Windows\SysWOW64\net.exe
        net stop serviceupdater
        2⤵
        • Suspicious use of WriteProcessMemory
        PID:3668
        • C:\Windows\SysWOW64\net1.exe
          C:\Windows\system32\net1 stop serviceupdater
          3⤵
            PID:4676
        • C:\Windows\SysWOW64\installd.exe
          "C:\Windows\system32\installd.exe" nethfdrv
          2⤵
          • Executes dropped EXE
          • Loads dropped DLL
          PID:1756
        • C:\Windows\SysWOW64\nethtsrv.exe
          "C:\Windows\system32\nethtsrv.exe" -nfdi
          2⤵
          • Executes dropped EXE
          • Loads dropped DLL
          PID:176
        • C:\Windows\SysWOW64\netupdsrv.exe
          "C:\Windows\system32\netupdsrv.exe" -nfdi
          2⤵
          • Executes dropped EXE
          PID:4392
        • C:\Windows\SysWOW64\net.exe
          net start nethttpservice
          2⤵
          • Suspicious use of WriteProcessMemory
          PID:3100
          • C:\Windows\SysWOW64\net1.exe
            C:\Windows\system32\net1 start nethttpservice
            3⤵
              PID:3824
          • C:\Windows\SysWOW64\net.exe
            net start serviceupdater
            2⤵
            • Suspicious use of WriteProcessMemory
            PID:3644
            • C:\Windows\SysWOW64\net1.exe
              C:\Windows\system32\net1 start serviceupdater
              3⤵
                PID:3620
          • 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:5044
          • C:\Windows\SysWOW64\netupdsrv.exe
            C:\Windows\SysWOW64\netupdsrv.exe
            1⤵
            • Executes dropped EXE
            PID:2832

          Network

          MITRE ATT&CK Enterprise v6

          Replay Monitor

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          Downloads

          • C:\Users\Admin\AppData\Local\Temp\nszA06D.tmp\System.dll

            Filesize

            11KB

            MD5

            c17103ae9072a06da581dec998343fc1

            SHA1

            b72148c6bdfaada8b8c3f950e610ee7cf1da1f8d

            SHA256

            dc58d8ad81cacb0c1ed72e33bff8f23ea40b5252b5bb55d393a0903e6819ae2f

            SHA512

            d32a71aaef18e993f28096d536e41c4d016850721b31171513ce28bbd805a54fd290b7c3e9d935f72e676a1acfb4f0dcc89d95040a0dd29f2b6975855c18986f

          • C:\Users\Admin\AppData\Local\Temp\nszA06D.tmp\nsExec.dll

            Filesize

            6KB

            MD5

            acc2b699edfea5bf5aae45aba3a41e96

            SHA1

            d2accf4d494e43ceb2cff69abe4dd17147d29cc2

            SHA256

            168a974eaa3f588d759db3f47c1a9fdc3494ba1fa1a73a84e5e3b2a4d58abd7e

            SHA512

            e29ea10ada98c71a18273b04f44f385b120d4e8473e441ce5748cfa44a23648814f2656f429b85440157988c88de776c6ac008dc38bf09cbb746c230a46c69fe

          • C:\Users\Admin\AppData\Local\Temp\nszA06D.tmp\nsExec.dll

            Filesize

            6KB

            MD5

            acc2b699edfea5bf5aae45aba3a41e96

            SHA1

            d2accf4d494e43ceb2cff69abe4dd17147d29cc2

            SHA256

            168a974eaa3f588d759db3f47c1a9fdc3494ba1fa1a73a84e5e3b2a4d58abd7e

            SHA512

            e29ea10ada98c71a18273b04f44f385b120d4e8473e441ce5748cfa44a23648814f2656f429b85440157988c88de776c6ac008dc38bf09cbb746c230a46c69fe

          • C:\Users\Admin\AppData\Local\Temp\nszA06D.tmp\nsExec.dll

            Filesize

            6KB

            MD5

            acc2b699edfea5bf5aae45aba3a41e96

            SHA1

            d2accf4d494e43ceb2cff69abe4dd17147d29cc2

            SHA256

            168a974eaa3f588d759db3f47c1a9fdc3494ba1fa1a73a84e5e3b2a4d58abd7e

            SHA512

            e29ea10ada98c71a18273b04f44f385b120d4e8473e441ce5748cfa44a23648814f2656f429b85440157988c88de776c6ac008dc38bf09cbb746c230a46c69fe

          • C:\Users\Admin\AppData\Local\Temp\nszA06D.tmp\nsExec.dll

            Filesize

            6KB

            MD5

            acc2b699edfea5bf5aae45aba3a41e96

            SHA1

            d2accf4d494e43ceb2cff69abe4dd17147d29cc2

            SHA256

            168a974eaa3f588d759db3f47c1a9fdc3494ba1fa1a73a84e5e3b2a4d58abd7e

            SHA512

            e29ea10ada98c71a18273b04f44f385b120d4e8473e441ce5748cfa44a23648814f2656f429b85440157988c88de776c6ac008dc38bf09cbb746c230a46c69fe

          • C:\Users\Admin\AppData\Local\Temp\nszA06D.tmp\nsExec.dll

            Filesize

            6KB

            MD5

            acc2b699edfea5bf5aae45aba3a41e96

            SHA1

            d2accf4d494e43ceb2cff69abe4dd17147d29cc2

            SHA256

            168a974eaa3f588d759db3f47c1a9fdc3494ba1fa1a73a84e5e3b2a4d58abd7e

            SHA512

            e29ea10ada98c71a18273b04f44f385b120d4e8473e441ce5748cfa44a23648814f2656f429b85440157988c88de776c6ac008dc38bf09cbb746c230a46c69fe

          • C:\Users\Admin\AppData\Local\Temp\nszA06D.tmp\nsExec.dll

            Filesize

            6KB

            MD5

            acc2b699edfea5bf5aae45aba3a41e96

            SHA1

            d2accf4d494e43ceb2cff69abe4dd17147d29cc2

            SHA256

            168a974eaa3f588d759db3f47c1a9fdc3494ba1fa1a73a84e5e3b2a4d58abd7e

            SHA512

            e29ea10ada98c71a18273b04f44f385b120d4e8473e441ce5748cfa44a23648814f2656f429b85440157988c88de776c6ac008dc38bf09cbb746c230a46c69fe

          • C:\Users\Admin\AppData\Local\Temp\nszA06D.tmp\nsExec.dll

            Filesize

            6KB

            MD5

            acc2b699edfea5bf5aae45aba3a41e96

            SHA1

            d2accf4d494e43ceb2cff69abe4dd17147d29cc2

            SHA256

            168a974eaa3f588d759db3f47c1a9fdc3494ba1fa1a73a84e5e3b2a4d58abd7e

            SHA512

            e29ea10ada98c71a18273b04f44f385b120d4e8473e441ce5748cfa44a23648814f2656f429b85440157988c88de776c6ac008dc38bf09cbb746c230a46c69fe

          • C:\Users\Admin\AppData\Local\Temp\nszA06D.tmp\nsExec.dll

            Filesize

            6KB

            MD5

            acc2b699edfea5bf5aae45aba3a41e96

            SHA1

            d2accf4d494e43ceb2cff69abe4dd17147d29cc2

            SHA256

            168a974eaa3f588d759db3f47c1a9fdc3494ba1fa1a73a84e5e3b2a4d58abd7e

            SHA512

            e29ea10ada98c71a18273b04f44f385b120d4e8473e441ce5748cfa44a23648814f2656f429b85440157988c88de776c6ac008dc38bf09cbb746c230a46c69fe

          • C:\Windows\SysWOW64\hfnapi.dll

            Filesize

            106KB

            MD5

            4ed58c8adf4fbed82dea64311fd621f0

            SHA1

            d5afd5589f81607db44bf39c3eb50010921b222a

            SHA256

            93f481f15b4ea5022a6c85efbe949efdcc02a770dbc650dea5f64d665d538502

            SHA512

            397a779727a379bad63d53da20b7ef81ba3d4780f644f345fdb7eee0667db5a6085611760c5db44cd6d4b1e85453d0e9777808018957def327f31038683a1ae4

          • C:\Windows\SysWOW64\hfnapi.dll

            Filesize

            106KB

            MD5

            4ed58c8adf4fbed82dea64311fd621f0

            SHA1

            d5afd5589f81607db44bf39c3eb50010921b222a

            SHA256

            93f481f15b4ea5022a6c85efbe949efdcc02a770dbc650dea5f64d665d538502

            SHA512

            397a779727a379bad63d53da20b7ef81ba3d4780f644f345fdb7eee0667db5a6085611760c5db44cd6d4b1e85453d0e9777808018957def327f31038683a1ae4

          • C:\Windows\SysWOW64\hfnapi.dll

            Filesize

            106KB

            MD5

            4ed58c8adf4fbed82dea64311fd621f0

            SHA1

            d5afd5589f81607db44bf39c3eb50010921b222a

            SHA256

            93f481f15b4ea5022a6c85efbe949efdcc02a770dbc650dea5f64d665d538502

            SHA512

            397a779727a379bad63d53da20b7ef81ba3d4780f644f345fdb7eee0667db5a6085611760c5db44cd6d4b1e85453d0e9777808018957def327f31038683a1ae4

          • C:\Windows\SysWOW64\hfnapi.dll

            Filesize

            106KB

            MD5

            4ed58c8adf4fbed82dea64311fd621f0

            SHA1

            d5afd5589f81607db44bf39c3eb50010921b222a

            SHA256

            93f481f15b4ea5022a6c85efbe949efdcc02a770dbc650dea5f64d665d538502

            SHA512

            397a779727a379bad63d53da20b7ef81ba3d4780f644f345fdb7eee0667db5a6085611760c5db44cd6d4b1e85453d0e9777808018957def327f31038683a1ae4

          • C:\Windows\SysWOW64\hfpapi.dll

            Filesize

            241KB

            MD5

            32160a2c852ef7a5ef0fcdf8c47534db

            SHA1

            0c47dcde402dcbf4549b2b41b3796a8b02836a3f

            SHA256

            f500b128527d506c2d90c9a4ad62a7eb7dc712e8c63e90d4bd83945d74402dd7

            SHA512

            c628a4d1383752ce8fdfb7cea537267caf501cb98bcd86ca19e115d7ad1fd1fe4b82456cf598d3c585830c52a23bba959af0c5bc4442ae9654ba1bcbe977f295

          • C:\Windows\SysWOW64\hfpapi.dll

            Filesize

            241KB

            MD5

            32160a2c852ef7a5ef0fcdf8c47534db

            SHA1

            0c47dcde402dcbf4549b2b41b3796a8b02836a3f

            SHA256

            f500b128527d506c2d90c9a4ad62a7eb7dc712e8c63e90d4bd83945d74402dd7

            SHA512

            c628a4d1383752ce8fdfb7cea537267caf501cb98bcd86ca19e115d7ad1fd1fe4b82456cf598d3c585830c52a23bba959af0c5bc4442ae9654ba1bcbe977f295

          • C:\Windows\SysWOW64\hfpapi.dll

            Filesize

            241KB

            MD5

            32160a2c852ef7a5ef0fcdf8c47534db

            SHA1

            0c47dcde402dcbf4549b2b41b3796a8b02836a3f

            SHA256

            f500b128527d506c2d90c9a4ad62a7eb7dc712e8c63e90d4bd83945d74402dd7

            SHA512

            c628a4d1383752ce8fdfb7cea537267caf501cb98bcd86ca19e115d7ad1fd1fe4b82456cf598d3c585830c52a23bba959af0c5bc4442ae9654ba1bcbe977f295

          • C:\Windows\SysWOW64\installd.exe

            Filesize

            108KB

            MD5

            2399ff9eb0fed18634891c19896e6a7c

            SHA1

            42e08dd74e8397526b1cb5565b7ce10307ae16f3

            SHA256

            1b5eec795c4074d2c9c11f804dd40a2a6bdae9c485cce7feb85248498bd82434

            SHA512

            2faf25df824d2bdd324a0b6406c40d6881dc3acd7eef283fa3cd41f796ae25e4d32498d43a43ce506a750f00452b87be2e267a2c2b5fce74c4fdab78bfed4eb5

          • C:\Windows\SysWOW64\installd.exe

            Filesize

            108KB

            MD5

            2399ff9eb0fed18634891c19896e6a7c

            SHA1

            42e08dd74e8397526b1cb5565b7ce10307ae16f3

            SHA256

            1b5eec795c4074d2c9c11f804dd40a2a6bdae9c485cce7feb85248498bd82434

            SHA512

            2faf25df824d2bdd324a0b6406c40d6881dc3acd7eef283fa3cd41f796ae25e4d32498d43a43ce506a750f00452b87be2e267a2c2b5fce74c4fdab78bfed4eb5

          • C:\Windows\SysWOW64\nethtsrv.exe

            Filesize

            176KB

            MD5

            47c931a4d528f248f6e4911ce0e0007c

            SHA1

            d2c32611392335b9ac688b048c2d51fd2286e72d

            SHA256

            08dc8e9ec56b0f31eaa871fafa43688572c26f1bce4d459af4e90570cf98a155

            SHA512

            45beb482389c44ad5939d19e4354c630341fce7f3c0aba519208c58b382c4dfc8e89cc879af4f165f2f9fffb4d4697cadb458ff9f5915bda374c62cef32b3538

          • C:\Windows\SysWOW64\nethtsrv.exe

            Filesize

            176KB

            MD5

            47c931a4d528f248f6e4911ce0e0007c

            SHA1

            d2c32611392335b9ac688b048c2d51fd2286e72d

            SHA256

            08dc8e9ec56b0f31eaa871fafa43688572c26f1bce4d459af4e90570cf98a155

            SHA512

            45beb482389c44ad5939d19e4354c630341fce7f3c0aba519208c58b382c4dfc8e89cc879af4f165f2f9fffb4d4697cadb458ff9f5915bda374c62cef32b3538

          • C:\Windows\SysWOW64\nethtsrv.exe

            Filesize

            176KB

            MD5

            47c931a4d528f248f6e4911ce0e0007c

            SHA1

            d2c32611392335b9ac688b048c2d51fd2286e72d

            SHA256

            08dc8e9ec56b0f31eaa871fafa43688572c26f1bce4d459af4e90570cf98a155

            SHA512

            45beb482389c44ad5939d19e4354c630341fce7f3c0aba519208c58b382c4dfc8e89cc879af4f165f2f9fffb4d4697cadb458ff9f5915bda374c62cef32b3538

          • C:\Windows\SysWOW64\netupdsrv.exe

            Filesize

            158KB

            MD5

            683ecc64a796d4a4bbe5de6684d3c802

            SHA1

            8329d1b755429ffbe8cc1835a312ac6fd6abc84e

            SHA256

            a09f02157d389964647d84354d117e6a81c5bb9c4dfc1de1d0d635d7f4dac335

            SHA512

            37ed93133117b23664ab9a248b15cac57924f22d155194e7965d50b0b64ddac9ddefcb17f727f9d20a89e860b6db06dff3062b9043ce50c0f4eea9be258b2c1d

          • C:\Windows\SysWOW64\netupdsrv.exe

            Filesize

            158KB

            MD5

            683ecc64a796d4a4bbe5de6684d3c802

            SHA1

            8329d1b755429ffbe8cc1835a312ac6fd6abc84e

            SHA256

            a09f02157d389964647d84354d117e6a81c5bb9c4dfc1de1d0d635d7f4dac335

            SHA512

            37ed93133117b23664ab9a248b15cac57924f22d155194e7965d50b0b64ddac9ddefcb17f727f9d20a89e860b6db06dff3062b9043ce50c0f4eea9be258b2c1d

          • C:\Windows\SysWOW64\netupdsrv.exe

            Filesize

            158KB

            MD5

            683ecc64a796d4a4bbe5de6684d3c802

            SHA1

            8329d1b755429ffbe8cc1835a312ac6fd6abc84e

            SHA256

            a09f02157d389964647d84354d117e6a81c5bb9c4dfc1de1d0d635d7f4dac335

            SHA512

            37ed93133117b23664ab9a248b15cac57924f22d155194e7965d50b0b64ddac9ddefcb17f727f9d20a89e860b6db06dff3062b9043ce50c0f4eea9be258b2c1d

          • memory/4464-137-0x0000000000360000-0x00000000007BE000-memory.dmp

            Filesize

            4.4MB

          • memory/4464-168-0x0000000000360000-0x00000000007BE000-memory.dmp

            Filesize

            4.4MB