Analysis

  • max time kernel
    193s
  • max time network
    204s
  • 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 10:57

General

  • Target

    46ff71f529360dd96a098dc828172e1b72cdfd645ef9eeb5424e7dca1c00baba.exe

  • Size

    446KB

  • MD5

    beaf90e8791f1b4e909b3acd3ba7bd95

  • SHA1

    4205a996ca30c206b20ffddeb463ac686607b143

  • SHA256

    46ff71f529360dd96a098dc828172e1b72cdfd645ef9eeb5424e7dca1c00baba

  • SHA512

    7f795f03a69387df094b3ca9e62c0458b32d719ceb627a4aedca2ab6d5bda00cbcd08e77124f9e7321703738e61b364e7f920269446ccb4c800490790063b4cb

  • SSDEEP

    6144:XzfZ1oqhQ6lXWa/jqbEBfLKWkWHhqq7rNRAeJdhJP0q+CCPyFUu4g8DBm8za/iL0:lJhTujWHoqVRAWHP0F7hDBLa6mt

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\46ff71f529360dd96a098dc828172e1b72cdfd645ef9eeb5424e7dca1c00baba.exe
    "C:\Users\Admin\AppData\Local\Temp\46ff71f529360dd96a098dc828172e1b72cdfd645ef9eeb5424e7dca1c00baba.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:5080
    • C:\Windows\SysWOW64\net.exe
      net stop nethttpservice
      2⤵
      • Suspicious use of WriteProcessMemory
      PID:4240
      • C:\Windows\SysWOW64\net1.exe
        C:\Windows\system32\net1 stop nethttpservice
        3⤵
          PID:1080
      • C:\Windows\SysWOW64\net.exe
        net stop serviceupdater
        2⤵
        • Suspicious use of WriteProcessMemory
        PID:4896
        • C:\Windows\SysWOW64\net1.exe
          C:\Windows\system32\net1 stop serviceupdater
          3⤵
            PID:3056
        • C:\Windows\SysWOW64\installd.exe
          "C:\Windows\system32\installd.exe" nethfdrv
          2⤵
          • Executes dropped EXE
          • Loads dropped DLL
          PID:4660
        • C:\Windows\SysWOW64\nethtsrv.exe
          "C:\Windows\system32\nethtsrv.exe" -nfdi
          2⤵
          • Executes dropped EXE
          • Loads dropped DLL
          PID:4396
        • C:\Windows\SysWOW64\netupdsrv.exe
          "C:\Windows\system32\netupdsrv.exe" -nfdi
          2⤵
          • Executes dropped EXE
          PID:4832
        • C:\Windows\SysWOW64\net.exe
          net start nethttpservice
          2⤵
          • Suspicious use of WriteProcessMemory
          PID:5004
          • C:\Windows\SysWOW64\net1.exe
            C:\Windows\system32\net1 start nethttpservice
            3⤵
              PID:3304
          • 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: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:4688
          • C:\Windows\SysWOW64\netupdsrv.exe
            C:\Windows\SysWOW64\netupdsrv.exe
            1⤵
            • Executes dropped EXE
            PID:1468

          Network

          MITRE ATT&CK Enterprise v6

          Replay Monitor

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          Downloads

          • C:\Users\Admin\AppData\Local\Temp\nss738C.tmp\System.dll

            Filesize

            11KB

            MD5

            c17103ae9072a06da581dec998343fc1

            SHA1

            b72148c6bdfaada8b8c3f950e610ee7cf1da1f8d

            SHA256

            dc58d8ad81cacb0c1ed72e33bff8f23ea40b5252b5bb55d393a0903e6819ae2f

            SHA512

            d32a71aaef18e993f28096d536e41c4d016850721b31171513ce28bbd805a54fd290b7c3e9d935f72e676a1acfb4f0dcc89d95040a0dd29f2b6975855c18986f

          • C:\Users\Admin\AppData\Local\Temp\nss738C.tmp\nsExec.dll

            Filesize

            6KB

            MD5

            acc2b699edfea5bf5aae45aba3a41e96

            SHA1

            d2accf4d494e43ceb2cff69abe4dd17147d29cc2

            SHA256

            168a974eaa3f588d759db3f47c1a9fdc3494ba1fa1a73a84e5e3b2a4d58abd7e

            SHA512

            e29ea10ada98c71a18273b04f44f385b120d4e8473e441ce5748cfa44a23648814f2656f429b85440157988c88de776c6ac008dc38bf09cbb746c230a46c69fe

          • C:\Users\Admin\AppData\Local\Temp\nss738C.tmp\nsExec.dll

            Filesize

            6KB

            MD5

            acc2b699edfea5bf5aae45aba3a41e96

            SHA1

            d2accf4d494e43ceb2cff69abe4dd17147d29cc2

            SHA256

            168a974eaa3f588d759db3f47c1a9fdc3494ba1fa1a73a84e5e3b2a4d58abd7e

            SHA512

            e29ea10ada98c71a18273b04f44f385b120d4e8473e441ce5748cfa44a23648814f2656f429b85440157988c88de776c6ac008dc38bf09cbb746c230a46c69fe

          • C:\Users\Admin\AppData\Local\Temp\nss738C.tmp\nsExec.dll

            Filesize

            6KB

            MD5

            acc2b699edfea5bf5aae45aba3a41e96

            SHA1

            d2accf4d494e43ceb2cff69abe4dd17147d29cc2

            SHA256

            168a974eaa3f588d759db3f47c1a9fdc3494ba1fa1a73a84e5e3b2a4d58abd7e

            SHA512

            e29ea10ada98c71a18273b04f44f385b120d4e8473e441ce5748cfa44a23648814f2656f429b85440157988c88de776c6ac008dc38bf09cbb746c230a46c69fe

          • C:\Users\Admin\AppData\Local\Temp\nss738C.tmp\nsExec.dll

            Filesize

            6KB

            MD5

            acc2b699edfea5bf5aae45aba3a41e96

            SHA1

            d2accf4d494e43ceb2cff69abe4dd17147d29cc2

            SHA256

            168a974eaa3f588d759db3f47c1a9fdc3494ba1fa1a73a84e5e3b2a4d58abd7e

            SHA512

            e29ea10ada98c71a18273b04f44f385b120d4e8473e441ce5748cfa44a23648814f2656f429b85440157988c88de776c6ac008dc38bf09cbb746c230a46c69fe

          • C:\Users\Admin\AppData\Local\Temp\nss738C.tmp\nsExec.dll

            Filesize

            6KB

            MD5

            acc2b699edfea5bf5aae45aba3a41e96

            SHA1

            d2accf4d494e43ceb2cff69abe4dd17147d29cc2

            SHA256

            168a974eaa3f588d759db3f47c1a9fdc3494ba1fa1a73a84e5e3b2a4d58abd7e

            SHA512

            e29ea10ada98c71a18273b04f44f385b120d4e8473e441ce5748cfa44a23648814f2656f429b85440157988c88de776c6ac008dc38bf09cbb746c230a46c69fe

          • C:\Users\Admin\AppData\Local\Temp\nss738C.tmp\nsExec.dll

            Filesize

            6KB

            MD5

            acc2b699edfea5bf5aae45aba3a41e96

            SHA1

            d2accf4d494e43ceb2cff69abe4dd17147d29cc2

            SHA256

            168a974eaa3f588d759db3f47c1a9fdc3494ba1fa1a73a84e5e3b2a4d58abd7e

            SHA512

            e29ea10ada98c71a18273b04f44f385b120d4e8473e441ce5748cfa44a23648814f2656f429b85440157988c88de776c6ac008dc38bf09cbb746c230a46c69fe

          • C:\Users\Admin\AppData\Local\Temp\nss738C.tmp\nsExec.dll

            Filesize

            6KB

            MD5

            acc2b699edfea5bf5aae45aba3a41e96

            SHA1

            d2accf4d494e43ceb2cff69abe4dd17147d29cc2

            SHA256

            168a974eaa3f588d759db3f47c1a9fdc3494ba1fa1a73a84e5e3b2a4d58abd7e

            SHA512

            e29ea10ada98c71a18273b04f44f385b120d4e8473e441ce5748cfa44a23648814f2656f429b85440157988c88de776c6ac008dc38bf09cbb746c230a46c69fe

          • C:\Users\Admin\AppData\Local\Temp\nss738C.tmp\nsExec.dll

            Filesize

            6KB

            MD5

            acc2b699edfea5bf5aae45aba3a41e96

            SHA1

            d2accf4d494e43ceb2cff69abe4dd17147d29cc2

            SHA256

            168a974eaa3f588d759db3f47c1a9fdc3494ba1fa1a73a84e5e3b2a4d58abd7e

            SHA512

            e29ea10ada98c71a18273b04f44f385b120d4e8473e441ce5748cfa44a23648814f2656f429b85440157988c88de776c6ac008dc38bf09cbb746c230a46c69fe

          • C:\Windows\SysWOW64\hfnapi.dll

            Filesize

            106KB

            MD5

            a3b9367824307d57b9e7924d93adfab8

            SHA1

            fbdecdf8ced1be1563eb6c64175cfb222c16b10a

            SHA256

            b0a640d04bc7c69208283aacd4742a52e70c410af0ac4041ce5616f9a887406c

            SHA512

            e2628cbb424a0b0e5d5e14500f237c4b57f3b934ee32d962ef7f110994ede385bf6f71fd86aa11bf9db933a3efbd974a7e0a5c0eb2ed0b7215474a612c6a7cc9

          • C:\Windows\SysWOW64\hfnapi.dll

            Filesize

            106KB

            MD5

            a3b9367824307d57b9e7924d93adfab8

            SHA1

            fbdecdf8ced1be1563eb6c64175cfb222c16b10a

            SHA256

            b0a640d04bc7c69208283aacd4742a52e70c410af0ac4041ce5616f9a887406c

            SHA512

            e2628cbb424a0b0e5d5e14500f237c4b57f3b934ee32d962ef7f110994ede385bf6f71fd86aa11bf9db933a3efbd974a7e0a5c0eb2ed0b7215474a612c6a7cc9

          • C:\Windows\SysWOW64\hfnapi.dll

            Filesize

            106KB

            MD5

            a3b9367824307d57b9e7924d93adfab8

            SHA1

            fbdecdf8ced1be1563eb6c64175cfb222c16b10a

            SHA256

            b0a640d04bc7c69208283aacd4742a52e70c410af0ac4041ce5616f9a887406c

            SHA512

            e2628cbb424a0b0e5d5e14500f237c4b57f3b934ee32d962ef7f110994ede385bf6f71fd86aa11bf9db933a3efbd974a7e0a5c0eb2ed0b7215474a612c6a7cc9

          • C:\Windows\SysWOW64\hfnapi.dll

            Filesize

            106KB

            MD5

            a3b9367824307d57b9e7924d93adfab8

            SHA1

            fbdecdf8ced1be1563eb6c64175cfb222c16b10a

            SHA256

            b0a640d04bc7c69208283aacd4742a52e70c410af0ac4041ce5616f9a887406c

            SHA512

            e2628cbb424a0b0e5d5e14500f237c4b57f3b934ee32d962ef7f110994ede385bf6f71fd86aa11bf9db933a3efbd974a7e0a5c0eb2ed0b7215474a612c6a7cc9

          • C:\Windows\SysWOW64\hfpapi.dll

            Filesize

            241KB

            MD5

            ba9bc6eefccf4f7a86193b880d00649b

            SHA1

            7fe026b3a23f62c77fc9765d6499de8a18d43ccf

            SHA256

            a18cf17ff23bd18d8d25cbeabd3e71b651cc9e9c1c55e5e0f22d5c6b1e2045b9

            SHA512

            518f3955093ab1049980c333bfbac2d5fc77ada8faa3034c77910b24e0f45605afdcaf5d66d850f1e236d68c7faf3b79ee34b6a507bca95b4210a3b72d181d11

          • C:\Windows\SysWOW64\hfpapi.dll

            Filesize

            241KB

            MD5

            ba9bc6eefccf4f7a86193b880d00649b

            SHA1

            7fe026b3a23f62c77fc9765d6499de8a18d43ccf

            SHA256

            a18cf17ff23bd18d8d25cbeabd3e71b651cc9e9c1c55e5e0f22d5c6b1e2045b9

            SHA512

            518f3955093ab1049980c333bfbac2d5fc77ada8faa3034c77910b24e0f45605afdcaf5d66d850f1e236d68c7faf3b79ee34b6a507bca95b4210a3b72d181d11

          • C:\Windows\SysWOW64\hfpapi.dll

            Filesize

            241KB

            MD5

            ba9bc6eefccf4f7a86193b880d00649b

            SHA1

            7fe026b3a23f62c77fc9765d6499de8a18d43ccf

            SHA256

            a18cf17ff23bd18d8d25cbeabd3e71b651cc9e9c1c55e5e0f22d5c6b1e2045b9

            SHA512

            518f3955093ab1049980c333bfbac2d5fc77ada8faa3034c77910b24e0f45605afdcaf5d66d850f1e236d68c7faf3b79ee34b6a507bca95b4210a3b72d181d11

          • C:\Windows\SysWOW64\installd.exe

            Filesize

            108KB

            MD5

            a168c9d073dbcd0a59c843b415b8b234

            SHA1

            1b9fc3a67bfcfe85b16b324f15edd209ca54396e

            SHA256

            e0daa8c96247f13d63cca8545a88a3bb9837a49aa3e4a0f6f38e156aaca428d6

            SHA512

            9c091708bde59f6dd1aa94f6ca5341c254b71c558be71742da41e7da15b92f09310ae4b4c22aff5a61a7569335d5123bf53909c1168c2c93fc0c0915ff038f79

          • C:\Windows\SysWOW64\installd.exe

            Filesize

            108KB

            MD5

            a168c9d073dbcd0a59c843b415b8b234

            SHA1

            1b9fc3a67bfcfe85b16b324f15edd209ca54396e

            SHA256

            e0daa8c96247f13d63cca8545a88a3bb9837a49aa3e4a0f6f38e156aaca428d6

            SHA512

            9c091708bde59f6dd1aa94f6ca5341c254b71c558be71742da41e7da15b92f09310ae4b4c22aff5a61a7569335d5123bf53909c1168c2c93fc0c0915ff038f79

          • C:\Windows\SysWOW64\nethtsrv.exe

            Filesize

            176KB

            MD5

            da4e7a723d3bcc339972b5f5ac58997e

            SHA1

            2e0affd39b713f6d7b22c77aa09c7b9f972ba18f

            SHA256

            a23ab8bb11f6c13b714e804cdf466d9b917801d379c03930fd8252bc25b8424f

            SHA512

            5075027e2e4b994aa71d3133ab3502a86eb1429a90458a8d9620c183556f34a17d32f4c0c0fbc3c5ee2d6a8e81ce93045f208d313ba3a7cdd44ae422794b86a4

          • C:\Windows\SysWOW64\nethtsrv.exe

            Filesize

            176KB

            MD5

            da4e7a723d3bcc339972b5f5ac58997e

            SHA1

            2e0affd39b713f6d7b22c77aa09c7b9f972ba18f

            SHA256

            a23ab8bb11f6c13b714e804cdf466d9b917801d379c03930fd8252bc25b8424f

            SHA512

            5075027e2e4b994aa71d3133ab3502a86eb1429a90458a8d9620c183556f34a17d32f4c0c0fbc3c5ee2d6a8e81ce93045f208d313ba3a7cdd44ae422794b86a4

          • C:\Windows\SysWOW64\nethtsrv.exe

            Filesize

            176KB

            MD5

            da4e7a723d3bcc339972b5f5ac58997e

            SHA1

            2e0affd39b713f6d7b22c77aa09c7b9f972ba18f

            SHA256

            a23ab8bb11f6c13b714e804cdf466d9b917801d379c03930fd8252bc25b8424f

            SHA512

            5075027e2e4b994aa71d3133ab3502a86eb1429a90458a8d9620c183556f34a17d32f4c0c0fbc3c5ee2d6a8e81ce93045f208d313ba3a7cdd44ae422794b86a4

          • C:\Windows\SysWOW64\netupdsrv.exe

            Filesize

            158KB

            MD5

            a2046a04569902df0ce70e2d914575ea

            SHA1

            0cb136b2823cdd8eaf4a22d76576656a5068cffe

            SHA256

            5ec39faa17f85c5e42d430c1338e13c2023d416d73059a5e1e78359ba731ce9d

            SHA512

            b1601550b7d6756487a310311c87930065799318a877ceacbbb3d97dc8b86ad019af9c5815a404670b48b32aea341b1692c2bbdec96c97f5dd0e287378d9512b

          • C:\Windows\SysWOW64\netupdsrv.exe

            Filesize

            158KB

            MD5

            a2046a04569902df0ce70e2d914575ea

            SHA1

            0cb136b2823cdd8eaf4a22d76576656a5068cffe

            SHA256

            5ec39faa17f85c5e42d430c1338e13c2023d416d73059a5e1e78359ba731ce9d

            SHA512

            b1601550b7d6756487a310311c87930065799318a877ceacbbb3d97dc8b86ad019af9c5815a404670b48b32aea341b1692c2bbdec96c97f5dd0e287378d9512b

          • C:\Windows\SysWOW64\netupdsrv.exe

            Filesize

            158KB

            MD5

            a2046a04569902df0ce70e2d914575ea

            SHA1

            0cb136b2823cdd8eaf4a22d76576656a5068cffe

            SHA256

            5ec39faa17f85c5e42d430c1338e13c2023d416d73059a5e1e78359ba731ce9d

            SHA512

            b1601550b7d6756487a310311c87930065799318a877ceacbbb3d97dc8b86ad019af9c5815a404670b48b32aea341b1692c2bbdec96c97f5dd0e287378d9512b

          • memory/1080-136-0x0000000000000000-mapping.dmp

          • memory/2148-164-0x0000000000000000-mapping.dmp

          • memory/3056-140-0x0000000000000000-mapping.dmp

          • memory/3304-158-0x0000000000000000-mapping.dmp

          • memory/3620-165-0x0000000000000000-mapping.dmp

          • memory/4240-135-0x0000000000000000-mapping.dmp

          • memory/4396-146-0x0000000000000000-mapping.dmp

          • memory/4660-141-0x0000000000000000-mapping.dmp

          • memory/4832-152-0x0000000000000000-mapping.dmp

          • memory/4896-139-0x0000000000000000-mapping.dmp

          • memory/5004-157-0x0000000000000000-mapping.dmp