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Analysis

  • max time kernel
    157s
  • max time network
    173s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20220812-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20220812-enlocale:en-usos:windows10-2004-x64system
  • submitted
    24/11/2022, 05:35

General

  • Target

    bb123c2aefb83cbda819f1bd5242c72b134b552fd2bb5b01dda6f721d425e892.exe

  • Size

    603KB

  • MD5

    4f7ec43a660772701eb3c6d2531542b0

  • SHA1

    71360e68b917234888cc1f575764bffb9cb964a1

  • SHA256

    bb123c2aefb83cbda819f1bd5242c72b134b552fd2bb5b01dda6f721d425e892

  • SHA512

    369280433f191f4b20d072b226799876d9d7836f848de299aaf1315631cdc13d2af094a02fe5f21651ac2f43b2a8a467d597fe809bc277700a6b8d02cb32b158

  • SSDEEP

    12288:WIny5DYTfIG9fOI8KBrcKAlTVftfMLcwY1XpzTWDR13u:YUTfxxzrpc9tqcwVRu

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\bb123c2aefb83cbda819f1bd5242c72b134b552fd2bb5b01dda6f721d425e892.exe
    "C:\Users\Admin\AppData\Local\Temp\bb123c2aefb83cbda819f1bd5242c72b134b552fd2bb5b01dda6f721d425e892.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:4892
    • C:\Windows\SysWOW64\net.exe
      net stop nethttpservice
      2⤵
      • Suspicious use of WriteProcessMemory
      PID:4784
      • C:\Windows\SysWOW64\net1.exe
        C:\Windows\system32\net1 stop nethttpservice
        3⤵
          PID:2224
      • C:\Windows\SysWOW64\net.exe
        net stop serviceupdater
        2⤵
        • Suspicious use of WriteProcessMemory
        PID:4960
        • C:\Windows\SysWOW64\net1.exe
          C:\Windows\system32\net1 stop serviceupdater
          3⤵
            PID:2632
        • C:\Windows\SysWOW64\installd.exe
          "C:\Windows\system32\installd.exe" nethfdrv
          2⤵
          • Executes dropped EXE
          • Loads dropped DLL
          PID:2628
        • C:\Windows\SysWOW64\nethtsrv.exe
          "C:\Windows\system32\nethtsrv.exe" -nfdi
          2⤵
          • Executes dropped EXE
          • Loads dropped DLL
          PID:964
        • C:\Windows\SysWOW64\netupdsrv.exe
          "C:\Windows\system32\netupdsrv.exe" -nfdi
          2⤵
          • Executes dropped EXE
          PID:208
        • C:\Windows\SysWOW64\net.exe
          net start nethttpservice
          2⤵
          • Suspicious use of WriteProcessMemory
          PID:3204
          • C:\Windows\SysWOW64\net1.exe
            C:\Windows\system32\net1 start nethttpservice
            3⤵
              PID:2208
          • C:\Windows\SysWOW64\net.exe
            net start serviceupdater
            2⤵
            • Suspicious use of WriteProcessMemory
            PID:4984
            • C:\Windows\SysWOW64\net1.exe
              C:\Windows\system32\net1 start serviceupdater
              3⤵
                PID:3492
          • 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:2220
          • C:\Windows\SysWOW64\netupdsrv.exe
            C:\Windows\SysWOW64\netupdsrv.exe
            1⤵
            • Executes dropped EXE
            PID:4820

          Network

          MITRE ATT&CK Enterprise v6

          Replay Monitor

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          Downloads

          • C:\Users\Admin\AppData\Local\Temp\nsvC9BF.tmp\System.dll

            Filesize

            11KB

            MD5

            c17103ae9072a06da581dec998343fc1

            SHA1

            b72148c6bdfaada8b8c3f950e610ee7cf1da1f8d

            SHA256

            dc58d8ad81cacb0c1ed72e33bff8f23ea40b5252b5bb55d393a0903e6819ae2f

            SHA512

            d32a71aaef18e993f28096d536e41c4d016850721b31171513ce28bbd805a54fd290b7c3e9d935f72e676a1acfb4f0dcc89d95040a0dd29f2b6975855c18986f

          • C:\Users\Admin\AppData\Local\Temp\nsvC9BF.tmp\nsExec.dll

            Filesize

            6KB

            MD5

            acc2b699edfea5bf5aae45aba3a41e96

            SHA1

            d2accf4d494e43ceb2cff69abe4dd17147d29cc2

            SHA256

            168a974eaa3f588d759db3f47c1a9fdc3494ba1fa1a73a84e5e3b2a4d58abd7e

            SHA512

            e29ea10ada98c71a18273b04f44f385b120d4e8473e441ce5748cfa44a23648814f2656f429b85440157988c88de776c6ac008dc38bf09cbb746c230a46c69fe

          • C:\Users\Admin\AppData\Local\Temp\nsvC9BF.tmp\nsExec.dll

            Filesize

            6KB

            MD5

            acc2b699edfea5bf5aae45aba3a41e96

            SHA1

            d2accf4d494e43ceb2cff69abe4dd17147d29cc2

            SHA256

            168a974eaa3f588d759db3f47c1a9fdc3494ba1fa1a73a84e5e3b2a4d58abd7e

            SHA512

            e29ea10ada98c71a18273b04f44f385b120d4e8473e441ce5748cfa44a23648814f2656f429b85440157988c88de776c6ac008dc38bf09cbb746c230a46c69fe

          • C:\Users\Admin\AppData\Local\Temp\nsvC9BF.tmp\nsExec.dll

            Filesize

            6KB

            MD5

            acc2b699edfea5bf5aae45aba3a41e96

            SHA1

            d2accf4d494e43ceb2cff69abe4dd17147d29cc2

            SHA256

            168a974eaa3f588d759db3f47c1a9fdc3494ba1fa1a73a84e5e3b2a4d58abd7e

            SHA512

            e29ea10ada98c71a18273b04f44f385b120d4e8473e441ce5748cfa44a23648814f2656f429b85440157988c88de776c6ac008dc38bf09cbb746c230a46c69fe

          • C:\Users\Admin\AppData\Local\Temp\nsvC9BF.tmp\nsExec.dll

            Filesize

            6KB

            MD5

            acc2b699edfea5bf5aae45aba3a41e96

            SHA1

            d2accf4d494e43ceb2cff69abe4dd17147d29cc2

            SHA256

            168a974eaa3f588d759db3f47c1a9fdc3494ba1fa1a73a84e5e3b2a4d58abd7e

            SHA512

            e29ea10ada98c71a18273b04f44f385b120d4e8473e441ce5748cfa44a23648814f2656f429b85440157988c88de776c6ac008dc38bf09cbb746c230a46c69fe

          • C:\Users\Admin\AppData\Local\Temp\nsvC9BF.tmp\nsExec.dll

            Filesize

            6KB

            MD5

            acc2b699edfea5bf5aae45aba3a41e96

            SHA1

            d2accf4d494e43ceb2cff69abe4dd17147d29cc2

            SHA256

            168a974eaa3f588d759db3f47c1a9fdc3494ba1fa1a73a84e5e3b2a4d58abd7e

            SHA512

            e29ea10ada98c71a18273b04f44f385b120d4e8473e441ce5748cfa44a23648814f2656f429b85440157988c88de776c6ac008dc38bf09cbb746c230a46c69fe

          • C:\Users\Admin\AppData\Local\Temp\nsvC9BF.tmp\nsExec.dll

            Filesize

            6KB

            MD5

            acc2b699edfea5bf5aae45aba3a41e96

            SHA1

            d2accf4d494e43ceb2cff69abe4dd17147d29cc2

            SHA256

            168a974eaa3f588d759db3f47c1a9fdc3494ba1fa1a73a84e5e3b2a4d58abd7e

            SHA512

            e29ea10ada98c71a18273b04f44f385b120d4e8473e441ce5748cfa44a23648814f2656f429b85440157988c88de776c6ac008dc38bf09cbb746c230a46c69fe

          • C:\Users\Admin\AppData\Local\Temp\nsvC9BF.tmp\nsExec.dll

            Filesize

            6KB

            MD5

            acc2b699edfea5bf5aae45aba3a41e96

            SHA1

            d2accf4d494e43ceb2cff69abe4dd17147d29cc2

            SHA256

            168a974eaa3f588d759db3f47c1a9fdc3494ba1fa1a73a84e5e3b2a4d58abd7e

            SHA512

            e29ea10ada98c71a18273b04f44f385b120d4e8473e441ce5748cfa44a23648814f2656f429b85440157988c88de776c6ac008dc38bf09cbb746c230a46c69fe

          • C:\Users\Admin\AppData\Local\Temp\nsvC9BF.tmp\nsExec.dll

            Filesize

            6KB

            MD5

            acc2b699edfea5bf5aae45aba3a41e96

            SHA1

            d2accf4d494e43ceb2cff69abe4dd17147d29cc2

            SHA256

            168a974eaa3f588d759db3f47c1a9fdc3494ba1fa1a73a84e5e3b2a4d58abd7e

            SHA512

            e29ea10ada98c71a18273b04f44f385b120d4e8473e441ce5748cfa44a23648814f2656f429b85440157988c88de776c6ac008dc38bf09cbb746c230a46c69fe

          • C:\Windows\SysWOW64\hfnapi.dll

            Filesize

            106KB

            MD5

            abf1fca62b4f0dcbaac72d896e005c0e

            SHA1

            6bdeae37d0967d328910051f842c1094d6e9cbec

            SHA256

            53385a8f01cbc3736cf1bf4cfe67ce84ef7fb53fdd56d7ee2f04577dd5b14e74

            SHA512

            7eaf124b5d0df879661244f99d54f84d6c5b5ace13375d187bd0d21ed4f751847a1edbfb1613b4e61c9148e688c0aa9244327cff79c4add2fa6c862dd078443f

          • C:\Windows\SysWOW64\hfnapi.dll

            Filesize

            106KB

            MD5

            abf1fca62b4f0dcbaac72d896e005c0e

            SHA1

            6bdeae37d0967d328910051f842c1094d6e9cbec

            SHA256

            53385a8f01cbc3736cf1bf4cfe67ce84ef7fb53fdd56d7ee2f04577dd5b14e74

            SHA512

            7eaf124b5d0df879661244f99d54f84d6c5b5ace13375d187bd0d21ed4f751847a1edbfb1613b4e61c9148e688c0aa9244327cff79c4add2fa6c862dd078443f

          • C:\Windows\SysWOW64\hfnapi.dll

            Filesize

            106KB

            MD5

            abf1fca62b4f0dcbaac72d896e005c0e

            SHA1

            6bdeae37d0967d328910051f842c1094d6e9cbec

            SHA256

            53385a8f01cbc3736cf1bf4cfe67ce84ef7fb53fdd56d7ee2f04577dd5b14e74

            SHA512

            7eaf124b5d0df879661244f99d54f84d6c5b5ace13375d187bd0d21ed4f751847a1edbfb1613b4e61c9148e688c0aa9244327cff79c4add2fa6c862dd078443f

          • C:\Windows\SysWOW64\hfnapi.dll

            Filesize

            106KB

            MD5

            abf1fca62b4f0dcbaac72d896e005c0e

            SHA1

            6bdeae37d0967d328910051f842c1094d6e9cbec

            SHA256

            53385a8f01cbc3736cf1bf4cfe67ce84ef7fb53fdd56d7ee2f04577dd5b14e74

            SHA512

            7eaf124b5d0df879661244f99d54f84d6c5b5ace13375d187bd0d21ed4f751847a1edbfb1613b4e61c9148e688c0aa9244327cff79c4add2fa6c862dd078443f

          • C:\Windows\SysWOW64\hfpapi.dll

            Filesize

            244KB

            MD5

            0e1d7fc2002421cd5bf606391b4bdb05

            SHA1

            ab9078f214240b85f6a8c47c1667a8fbd40495fa

            SHA256

            09412ebe86948ee71c1ee7e9b533082beb07a46730949f335ada907ddef76b6f

            SHA512

            ae579ed6cb5af395a54e667fcd4ec5927bf9ff982797b7c7985d03a4f54653913b512073fefa29f6aa3dd29bda2829d50ebcfb46ff62e1806f37e7f2c7a5595c

          • C:\Windows\SysWOW64\hfpapi.dll

            Filesize

            244KB

            MD5

            0e1d7fc2002421cd5bf606391b4bdb05

            SHA1

            ab9078f214240b85f6a8c47c1667a8fbd40495fa

            SHA256

            09412ebe86948ee71c1ee7e9b533082beb07a46730949f335ada907ddef76b6f

            SHA512

            ae579ed6cb5af395a54e667fcd4ec5927bf9ff982797b7c7985d03a4f54653913b512073fefa29f6aa3dd29bda2829d50ebcfb46ff62e1806f37e7f2c7a5595c

          • C:\Windows\SysWOW64\hfpapi.dll

            Filesize

            244KB

            MD5

            0e1d7fc2002421cd5bf606391b4bdb05

            SHA1

            ab9078f214240b85f6a8c47c1667a8fbd40495fa

            SHA256

            09412ebe86948ee71c1ee7e9b533082beb07a46730949f335ada907ddef76b6f

            SHA512

            ae579ed6cb5af395a54e667fcd4ec5927bf9ff982797b7c7985d03a4f54653913b512073fefa29f6aa3dd29bda2829d50ebcfb46ff62e1806f37e7f2c7a5595c

          • C:\Windows\SysWOW64\installd.exe

            Filesize

            108KB

            MD5

            a4a480174aafdebe3691e5593ec0dc50

            SHA1

            e4d2df14fe6858a08de46537e397cc4995378a1e

            SHA256

            d3c224d0c82e4a946f1bd39d8a9efc7e738f15b89514b801da0678a86adb7ece

            SHA512

            6bcd8ab8fc40c4c74e15172f2a243de988f9e37be4c1f0b3fc125e77f3cc109973401db547e4218b37bf2c22478259e6d6ca9ffb991ccdfc84485cd4b04557a6

          • C:\Windows\SysWOW64\installd.exe

            Filesize

            108KB

            MD5

            a4a480174aafdebe3691e5593ec0dc50

            SHA1

            e4d2df14fe6858a08de46537e397cc4995378a1e

            SHA256

            d3c224d0c82e4a946f1bd39d8a9efc7e738f15b89514b801da0678a86adb7ece

            SHA512

            6bcd8ab8fc40c4c74e15172f2a243de988f9e37be4c1f0b3fc125e77f3cc109973401db547e4218b37bf2c22478259e6d6ca9ffb991ccdfc84485cd4b04557a6

          • C:\Windows\SysWOW64\nethtsrv.exe

            Filesize

            176KB

            MD5

            a1e36ea9b297277824521aeb60b3deb9

            SHA1

            90c756a2a7f145ee2ff96786bbb641e7978e4ac0

            SHA256

            f55f800f7efdec25a618caabc7b73f9a81fd51474228834c31d404ce7dd6d49a

            SHA512

            ee31f6551b91e46f01aa768f8d2cfc1a63d99ba1f39d2248c9b9fd1d60c29dc0dca0437c48ec337756197a70f870f4891588098da647f353d098d2deae1a7f8a

          • C:\Windows\SysWOW64\nethtsrv.exe

            Filesize

            176KB

            MD5

            a1e36ea9b297277824521aeb60b3deb9

            SHA1

            90c756a2a7f145ee2ff96786bbb641e7978e4ac0

            SHA256

            f55f800f7efdec25a618caabc7b73f9a81fd51474228834c31d404ce7dd6d49a

            SHA512

            ee31f6551b91e46f01aa768f8d2cfc1a63d99ba1f39d2248c9b9fd1d60c29dc0dca0437c48ec337756197a70f870f4891588098da647f353d098d2deae1a7f8a

          • C:\Windows\SysWOW64\nethtsrv.exe

            Filesize

            176KB

            MD5

            a1e36ea9b297277824521aeb60b3deb9

            SHA1

            90c756a2a7f145ee2ff96786bbb641e7978e4ac0

            SHA256

            f55f800f7efdec25a618caabc7b73f9a81fd51474228834c31d404ce7dd6d49a

            SHA512

            ee31f6551b91e46f01aa768f8d2cfc1a63d99ba1f39d2248c9b9fd1d60c29dc0dca0437c48ec337756197a70f870f4891588098da647f353d098d2deae1a7f8a

          • C:\Windows\SysWOW64\netupdsrv.exe

            Filesize

            158KB

            MD5

            d5564307c14d6e2bc4d9e58a91381105

            SHA1

            4fbf72dea6bdc371326929341ef82db7ba0846bc

            SHA256

            b288c951767351a264cd3602faeef810d9040d45a9ba2683a8bed88ea92191be

            SHA512

            0693df3f84145b44196f869100181dfaed77d041646111183d480dac42604d3af8ae1069f59f559726fa47dbdabb9d46d07ebbe3bf4fed4e001006d2ca2f72da

          • C:\Windows\SysWOW64\netupdsrv.exe

            Filesize

            158KB

            MD5

            d5564307c14d6e2bc4d9e58a91381105

            SHA1

            4fbf72dea6bdc371326929341ef82db7ba0846bc

            SHA256

            b288c951767351a264cd3602faeef810d9040d45a9ba2683a8bed88ea92191be

            SHA512

            0693df3f84145b44196f869100181dfaed77d041646111183d480dac42604d3af8ae1069f59f559726fa47dbdabb9d46d07ebbe3bf4fed4e001006d2ca2f72da

          • C:\Windows\SysWOW64\netupdsrv.exe

            Filesize

            158KB

            MD5

            d5564307c14d6e2bc4d9e58a91381105

            SHA1

            4fbf72dea6bdc371326929341ef82db7ba0846bc

            SHA256

            b288c951767351a264cd3602faeef810d9040d45a9ba2683a8bed88ea92191be

            SHA512

            0693df3f84145b44196f869100181dfaed77d041646111183d480dac42604d3af8ae1069f59f559726fa47dbdabb9d46d07ebbe3bf4fed4e001006d2ca2f72da

          • memory/4892-137-0x0000000000360000-0x00000000007BE000-memory.dmp

            Filesize

            4.4MB

          • memory/4892-168-0x0000000000360000-0x00000000007BE000-memory.dmp

            Filesize

            4.4MB