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Analysis

  • max time kernel
    161s
  • max time network
    197s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20221111-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20221111-enlocale:en-usos:windows10-2004-x64system
  • submitted
    25/11/2022, 14:44

General

  • Target

    53921b6717bf9e68dfe335ef026fd2f7628e001534dc0b17e1ced92c6ed8c669.exe

  • Size

    562KB

  • MD5

    240a77dd273775670ead65caa489e4bf

  • SHA1

    15c89fdfa4b86a0a635c5a7bee97047182562419

  • SHA256

    53921b6717bf9e68dfe335ef026fd2f7628e001534dc0b17e1ced92c6ed8c669

  • SHA512

    9479ee6f765077e909d2f8ddb6542f388d6cbe6ecfc310d0800b66206d35bdad1b7915e91004bff59e0fc6adc550b7fc7b1fc242b6fd832e4922da32b9437a6a

  • SSDEEP

    12288:0PRYzJbfDCuo/8IyXOw49KITHLvNypjiJFZ6ngAYjdhlMGFcN7gA270IG:lz9fG3/8IM4HH7NhJegJjfiGFKgRk

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\53921b6717bf9e68dfe335ef026fd2f7628e001534dc0b17e1ced92c6ed8c669.exe
    "C:\Users\Admin\AppData\Local\Temp\53921b6717bf9e68dfe335ef026fd2f7628e001534dc0b17e1ced92c6ed8c669.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:3256
    • C:\Windows\SysWOW64\net.exe
      net stop nethttpservice
      2⤵
      • Suspicious use of WriteProcessMemory
      PID:4072
      • C:\Windows\SysWOW64\net1.exe
        C:\Windows\system32\net1 stop nethttpservice
        3⤵
          PID:3868
      • C:\Windows\SysWOW64\net.exe
        net stop serviceupdater
        2⤵
        • Suspicious use of WriteProcessMemory
        PID:3624
        • C:\Windows\SysWOW64\net1.exe
          C:\Windows\system32\net1 stop serviceupdater
          3⤵
            PID:4792
        • C:\Windows\SysWOW64\installd.exe
          "C:\Windows\system32\installd.exe" nethfdrv
          2⤵
          • Executes dropped EXE
          • Loads dropped DLL
          PID:2088
        • C:\Windows\SysWOW64\nethtsrv.exe
          "C:\Windows\system32\nethtsrv.exe" -nfdi
          2⤵
          • Executes dropped EXE
          • Loads dropped DLL
          PID:2300
        • C:\Windows\SysWOW64\netupdsrv.exe
          "C:\Windows\system32\netupdsrv.exe" -nfdi
          2⤵
          • Executes dropped EXE
          PID:2936
        • C:\Windows\SysWOW64\net.exe
          net start nethttpservice
          2⤵
          • Suspicious use of WriteProcessMemory
          PID:1748
          • C:\Windows\SysWOW64\net1.exe
            C:\Windows\system32\net1 start nethttpservice
            3⤵
              PID:3584
          • C:\Windows\SysWOW64\net.exe
            net start serviceupdater
            2⤵
            • Suspicious use of WriteProcessMemory
            PID:2148
            • C:\Windows\SysWOW64\net1.exe
              C:\Windows\system32\net1 start serviceupdater
              3⤵
                PID:2312
          • 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:2788
          • C:\Windows\SysWOW64\netupdsrv.exe
            C:\Windows\SysWOW64\netupdsrv.exe
            1⤵
            • Executes dropped EXE
            PID:5040

          Network

          MITRE ATT&CK Enterprise v6

          Replay Monitor

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          Downloads

          • C:\Users\Admin\AppData\Local\Temp\nsy8280.tmp\System.dll

            Filesize

            11KB

            MD5

            c17103ae9072a06da581dec998343fc1

            SHA1

            b72148c6bdfaada8b8c3f950e610ee7cf1da1f8d

            SHA256

            dc58d8ad81cacb0c1ed72e33bff8f23ea40b5252b5bb55d393a0903e6819ae2f

            SHA512

            d32a71aaef18e993f28096d536e41c4d016850721b31171513ce28bbd805a54fd290b7c3e9d935f72e676a1acfb4f0dcc89d95040a0dd29f2b6975855c18986f

          • C:\Users\Admin\AppData\Local\Temp\nsy8280.tmp\nsExec.dll

            Filesize

            6KB

            MD5

            acc2b699edfea5bf5aae45aba3a41e96

            SHA1

            d2accf4d494e43ceb2cff69abe4dd17147d29cc2

            SHA256

            168a974eaa3f588d759db3f47c1a9fdc3494ba1fa1a73a84e5e3b2a4d58abd7e

            SHA512

            e29ea10ada98c71a18273b04f44f385b120d4e8473e441ce5748cfa44a23648814f2656f429b85440157988c88de776c6ac008dc38bf09cbb746c230a46c69fe

          • C:\Users\Admin\AppData\Local\Temp\nsy8280.tmp\nsExec.dll

            Filesize

            6KB

            MD5

            acc2b699edfea5bf5aae45aba3a41e96

            SHA1

            d2accf4d494e43ceb2cff69abe4dd17147d29cc2

            SHA256

            168a974eaa3f588d759db3f47c1a9fdc3494ba1fa1a73a84e5e3b2a4d58abd7e

            SHA512

            e29ea10ada98c71a18273b04f44f385b120d4e8473e441ce5748cfa44a23648814f2656f429b85440157988c88de776c6ac008dc38bf09cbb746c230a46c69fe

          • C:\Users\Admin\AppData\Local\Temp\nsy8280.tmp\nsExec.dll

            Filesize

            6KB

            MD5

            acc2b699edfea5bf5aae45aba3a41e96

            SHA1

            d2accf4d494e43ceb2cff69abe4dd17147d29cc2

            SHA256

            168a974eaa3f588d759db3f47c1a9fdc3494ba1fa1a73a84e5e3b2a4d58abd7e

            SHA512

            e29ea10ada98c71a18273b04f44f385b120d4e8473e441ce5748cfa44a23648814f2656f429b85440157988c88de776c6ac008dc38bf09cbb746c230a46c69fe

          • C:\Users\Admin\AppData\Local\Temp\nsy8280.tmp\nsExec.dll

            Filesize

            6KB

            MD5

            acc2b699edfea5bf5aae45aba3a41e96

            SHA1

            d2accf4d494e43ceb2cff69abe4dd17147d29cc2

            SHA256

            168a974eaa3f588d759db3f47c1a9fdc3494ba1fa1a73a84e5e3b2a4d58abd7e

            SHA512

            e29ea10ada98c71a18273b04f44f385b120d4e8473e441ce5748cfa44a23648814f2656f429b85440157988c88de776c6ac008dc38bf09cbb746c230a46c69fe

          • C:\Users\Admin\AppData\Local\Temp\nsy8280.tmp\nsExec.dll

            Filesize

            6KB

            MD5

            acc2b699edfea5bf5aae45aba3a41e96

            SHA1

            d2accf4d494e43ceb2cff69abe4dd17147d29cc2

            SHA256

            168a974eaa3f588d759db3f47c1a9fdc3494ba1fa1a73a84e5e3b2a4d58abd7e

            SHA512

            e29ea10ada98c71a18273b04f44f385b120d4e8473e441ce5748cfa44a23648814f2656f429b85440157988c88de776c6ac008dc38bf09cbb746c230a46c69fe

          • C:\Users\Admin\AppData\Local\Temp\nsy8280.tmp\nsExec.dll

            Filesize

            6KB

            MD5

            acc2b699edfea5bf5aae45aba3a41e96

            SHA1

            d2accf4d494e43ceb2cff69abe4dd17147d29cc2

            SHA256

            168a974eaa3f588d759db3f47c1a9fdc3494ba1fa1a73a84e5e3b2a4d58abd7e

            SHA512

            e29ea10ada98c71a18273b04f44f385b120d4e8473e441ce5748cfa44a23648814f2656f429b85440157988c88de776c6ac008dc38bf09cbb746c230a46c69fe

          • C:\Users\Admin\AppData\Local\Temp\nsy8280.tmp\nsExec.dll

            Filesize

            6KB

            MD5

            acc2b699edfea5bf5aae45aba3a41e96

            SHA1

            d2accf4d494e43ceb2cff69abe4dd17147d29cc2

            SHA256

            168a974eaa3f588d759db3f47c1a9fdc3494ba1fa1a73a84e5e3b2a4d58abd7e

            SHA512

            e29ea10ada98c71a18273b04f44f385b120d4e8473e441ce5748cfa44a23648814f2656f429b85440157988c88de776c6ac008dc38bf09cbb746c230a46c69fe

          • C:\Users\Admin\AppData\Local\Temp\nsy8280.tmp\nsExec.dll

            Filesize

            6KB

            MD5

            acc2b699edfea5bf5aae45aba3a41e96

            SHA1

            d2accf4d494e43ceb2cff69abe4dd17147d29cc2

            SHA256

            168a974eaa3f588d759db3f47c1a9fdc3494ba1fa1a73a84e5e3b2a4d58abd7e

            SHA512

            e29ea10ada98c71a18273b04f44f385b120d4e8473e441ce5748cfa44a23648814f2656f429b85440157988c88de776c6ac008dc38bf09cbb746c230a46c69fe

          • C:\Windows\SysWOW64\hfnapi.dll

            Filesize

            106KB

            MD5

            3fbe83533efd9ac6ffec6ff6e599770a

            SHA1

            e6d3648e0f2a89581635dee0b8b0a03a77369bc1

            SHA256

            a7b2c2892927297d522b48b28e5d1d8f04cc61aca454ed599363c98d46f8c1fc

            SHA512

            8f8876694e50456ec3f6b327e10f6222a161fddb71e0507da94cc99c0b596dbaa3dafabdc8a697d5fd467f1ae550d75379e04a63567893f7dacd4fb1b71b4145

          • C:\Windows\SysWOW64\hfnapi.dll

            Filesize

            106KB

            MD5

            3fbe83533efd9ac6ffec6ff6e599770a

            SHA1

            e6d3648e0f2a89581635dee0b8b0a03a77369bc1

            SHA256

            a7b2c2892927297d522b48b28e5d1d8f04cc61aca454ed599363c98d46f8c1fc

            SHA512

            8f8876694e50456ec3f6b327e10f6222a161fddb71e0507da94cc99c0b596dbaa3dafabdc8a697d5fd467f1ae550d75379e04a63567893f7dacd4fb1b71b4145

          • C:\Windows\SysWOW64\hfnapi.dll

            Filesize

            106KB

            MD5

            3fbe83533efd9ac6ffec6ff6e599770a

            SHA1

            e6d3648e0f2a89581635dee0b8b0a03a77369bc1

            SHA256

            a7b2c2892927297d522b48b28e5d1d8f04cc61aca454ed599363c98d46f8c1fc

            SHA512

            8f8876694e50456ec3f6b327e10f6222a161fddb71e0507da94cc99c0b596dbaa3dafabdc8a697d5fd467f1ae550d75379e04a63567893f7dacd4fb1b71b4145

          • C:\Windows\SysWOW64\hfnapi.dll

            Filesize

            106KB

            MD5

            3fbe83533efd9ac6ffec6ff6e599770a

            SHA1

            e6d3648e0f2a89581635dee0b8b0a03a77369bc1

            SHA256

            a7b2c2892927297d522b48b28e5d1d8f04cc61aca454ed599363c98d46f8c1fc

            SHA512

            8f8876694e50456ec3f6b327e10f6222a161fddb71e0507da94cc99c0b596dbaa3dafabdc8a697d5fd467f1ae550d75379e04a63567893f7dacd4fb1b71b4145

          • C:\Windows\SysWOW64\hfpapi.dll

            Filesize

            244KB

            MD5

            72ead6866292afa38f3eaec8056b24c5

            SHA1

            bb368b8f604ab9d9cd9e9f1461510bc649989b06

            SHA256

            d0c412f7268c8dd4a0346b96d3be4916570d1d67a2a0402991a07d57bad3c1b2

            SHA512

            bde8962bc9fdef1112ebb64bebca894046c77447c1064076fd291e3f778a5def4fda3216c738c3f399900f6cfe626e52afe750428ef8bcd890d90f10c5ccc0d2

          • C:\Windows\SysWOW64\hfpapi.dll

            Filesize

            244KB

            MD5

            72ead6866292afa38f3eaec8056b24c5

            SHA1

            bb368b8f604ab9d9cd9e9f1461510bc649989b06

            SHA256

            d0c412f7268c8dd4a0346b96d3be4916570d1d67a2a0402991a07d57bad3c1b2

            SHA512

            bde8962bc9fdef1112ebb64bebca894046c77447c1064076fd291e3f778a5def4fda3216c738c3f399900f6cfe626e52afe750428ef8bcd890d90f10c5ccc0d2

          • C:\Windows\SysWOW64\hfpapi.dll

            Filesize

            244KB

            MD5

            72ead6866292afa38f3eaec8056b24c5

            SHA1

            bb368b8f604ab9d9cd9e9f1461510bc649989b06

            SHA256

            d0c412f7268c8dd4a0346b96d3be4916570d1d67a2a0402991a07d57bad3c1b2

            SHA512

            bde8962bc9fdef1112ebb64bebca894046c77447c1064076fd291e3f778a5def4fda3216c738c3f399900f6cfe626e52afe750428ef8bcd890d90f10c5ccc0d2

          • C:\Windows\SysWOW64\installd.exe

            Filesize

            108KB

            MD5

            021640c3f24e32f8380c28a620ac66b3

            SHA1

            94860d36aca906ae9448fd68b5b1efc119f4aea9

            SHA256

            25b9050ee76c58e236114daf7bd751c8ee7bba09e6eff7c7e9d87281c00bc7c9

            SHA512

            ea6892e60d07f8f80461d136b481bef5e0cfecf51362530645bdc3f70255e2873f9249cb758f80c294bb91849b80d0cce207a3820b19bb33526021b334dc7b1e

          • C:\Windows\SysWOW64\installd.exe

            Filesize

            108KB

            MD5

            021640c3f24e32f8380c28a620ac66b3

            SHA1

            94860d36aca906ae9448fd68b5b1efc119f4aea9

            SHA256

            25b9050ee76c58e236114daf7bd751c8ee7bba09e6eff7c7e9d87281c00bc7c9

            SHA512

            ea6892e60d07f8f80461d136b481bef5e0cfecf51362530645bdc3f70255e2873f9249cb758f80c294bb91849b80d0cce207a3820b19bb33526021b334dc7b1e

          • C:\Windows\SysWOW64\nethtsrv.exe

            Filesize

            176KB

            MD5

            2c23c6ed36a85780802e8bb6facd3e38

            SHA1

            07ac87cc90f8ee8ae76a34839612b70b02e0a275

            SHA256

            9566c298afb9e839d82e76542ae958ba86fe16289de6043b60618e40eefea661

            SHA512

            c41c3eec68e2e1d699da11396aad842ffc29663bac1cc6f8f738598cc6876ac1569be89438282f3006abee60d7ea5851af33d3c2a4f81f5ce793eae837bcb3c9

          • C:\Windows\SysWOW64\nethtsrv.exe

            Filesize

            176KB

            MD5

            2c23c6ed36a85780802e8bb6facd3e38

            SHA1

            07ac87cc90f8ee8ae76a34839612b70b02e0a275

            SHA256

            9566c298afb9e839d82e76542ae958ba86fe16289de6043b60618e40eefea661

            SHA512

            c41c3eec68e2e1d699da11396aad842ffc29663bac1cc6f8f738598cc6876ac1569be89438282f3006abee60d7ea5851af33d3c2a4f81f5ce793eae837bcb3c9

          • C:\Windows\SysWOW64\nethtsrv.exe

            Filesize

            176KB

            MD5

            2c23c6ed36a85780802e8bb6facd3e38

            SHA1

            07ac87cc90f8ee8ae76a34839612b70b02e0a275

            SHA256

            9566c298afb9e839d82e76542ae958ba86fe16289de6043b60618e40eefea661

            SHA512

            c41c3eec68e2e1d699da11396aad842ffc29663bac1cc6f8f738598cc6876ac1569be89438282f3006abee60d7ea5851af33d3c2a4f81f5ce793eae837bcb3c9

          • C:\Windows\SysWOW64\netupdsrv.exe

            Filesize

            158KB

            MD5

            c8110c6df19e376864012cf9566e48ff

            SHA1

            726296920a646b0385804ed39fb207eaa211a223

            SHA256

            7270f5c2de9ad14252848992b592c9b811137ee43a9149aaf31eb7ba69d50f8e

            SHA512

            5ba1c166cabfddea5a93606b45d9e05838ae2372f7cd543901539d075c14c15e063d77dc5bb52cb1b843ecb41f3c8d081f4471dce4d21aeb310bf854e0818b99

          • C:\Windows\SysWOW64\netupdsrv.exe

            Filesize

            158KB

            MD5

            c8110c6df19e376864012cf9566e48ff

            SHA1

            726296920a646b0385804ed39fb207eaa211a223

            SHA256

            7270f5c2de9ad14252848992b592c9b811137ee43a9149aaf31eb7ba69d50f8e

            SHA512

            5ba1c166cabfddea5a93606b45d9e05838ae2372f7cd543901539d075c14c15e063d77dc5bb52cb1b843ecb41f3c8d081f4471dce4d21aeb310bf854e0818b99

          • C:\Windows\SysWOW64\netupdsrv.exe

            Filesize

            158KB

            MD5

            c8110c6df19e376864012cf9566e48ff

            SHA1

            726296920a646b0385804ed39fb207eaa211a223

            SHA256

            7270f5c2de9ad14252848992b592c9b811137ee43a9149aaf31eb7ba69d50f8e

            SHA512

            5ba1c166cabfddea5a93606b45d9e05838ae2372f7cd543901539d075c14c15e063d77dc5bb52cb1b843ecb41f3c8d081f4471dce4d21aeb310bf854e0818b99

          • memory/3256-132-0x0000000000360000-0x00000000007BE000-memory.dmp

            Filesize

            4.4MB

          • memory/3256-138-0x0000000000360000-0x00000000007BE000-memory.dmp

            Filesize

            4.4MB

          • memory/3256-169-0x0000000000360000-0x00000000007BE000-memory.dmp

            Filesize

            4.4MB