Analysis

  • max time kernel
    45s
  • max time network
    32s
  • platform
    windows7_x64
  • resource
    win7-20221111-en
  • resource tags

    arch:x64arch:x86image:win7-20221111-enlocale:en-usos:windows7-x64system
  • submitted
    25/11/2022, 14:27

General

  • Target

    75232147400498e7af92a6de3887b8310003cdeafbbef0ca6c4ad14282804469.exe

  • Size

    559KB

  • MD5

    7e3e661d25b8ef1b25fa703810bc9e82

  • SHA1

    c92a9dfaba89707e371eb46cf034d787f3662a0c

  • SHA256

    75232147400498e7af92a6de3887b8310003cdeafbbef0ca6c4ad14282804469

  • SHA512

    7ff468ae39872b9c01a8eca619227127577ab19e58993d99cdc88df277dc95ecc482c1b59f832cd9a395d451a91dc0c7665e3570053bd8be98ed28fe4ff6928a

  • SSDEEP

    12288:TPRYzhbfgsMvHdJ/aYqlwC2xbhYbRouevf:OzlfoljqlwCMhYy

Score
8/10

Malware Config

Signatures

  • Drops file in Drivers directory 1 IoCs
  • Executes dropped EXE 5 IoCs
  • Loads dropped DLL 13 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.

  • Runs net.exe
  • Suspicious behavior: LoadsDriver 1 IoCs
  • Suspicious use of AdjustPrivilegeToken 1 IoCs
  • Suspicious use of WriteProcessMemory 50 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\75232147400498e7af92a6de3887b8310003cdeafbbef0ca6c4ad14282804469.exe
    "C:\Users\Admin\AppData\Local\Temp\75232147400498e7af92a6de3887b8310003cdeafbbef0ca6c4ad14282804469.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:1812
    • C:\Windows\SysWOW64\net.exe
      net stop nethttpservice
      2⤵
      • Suspicious use of WriteProcessMemory
      PID:908
      • C:\Windows\SysWOW64\net1.exe
        C:\Windows\system32\net1 stop nethttpservice
        3⤵
          PID:560
      • C:\Windows\SysWOW64\net.exe
        net stop serviceupdater
        2⤵
        • Suspicious use of WriteProcessMemory
        PID:1916
        • C:\Windows\SysWOW64\net1.exe
          C:\Windows\system32\net1 stop serviceupdater
          3⤵
            PID:648
        • C:\Windows\SysWOW64\installd.exe
          "C:\Windows\system32\installd.exe" nethfdrv
          2⤵
          • Executes dropped EXE
          • Loads dropped DLL
          PID:1640
        • C:\Windows\SysWOW64\nethtsrv.exe
          "C:\Windows\system32\nethtsrv.exe" -nfdi
          2⤵
          • Executes dropped EXE
          • Loads dropped DLL
          PID:1584
        • C:\Windows\SysWOW64\netupdsrv.exe
          "C:\Windows\system32\netupdsrv.exe" -nfdi
          2⤵
          • Executes dropped EXE
          PID:632
        • C:\Windows\SysWOW64\net.exe
          net start nethttpservice
          2⤵
          • Suspicious use of WriteProcessMemory
          PID:1972
          • C:\Windows\SysWOW64\net1.exe
            C:\Windows\system32\net1 start nethttpservice
            3⤵
              PID:1384
          • C:\Windows\SysWOW64\net.exe
            net start serviceupdater
            2⤵
            • Suspicious use of WriteProcessMemory
            PID:1280
            • C:\Windows\SysWOW64\net1.exe
              C:\Windows\system32\net1 start serviceupdater
              3⤵
                PID:1308
          • C:\Windows\SysWOW64\nethtsrv.exe
            C:\Windows\SysWOW64\nethtsrv.exe
            1⤵
            • Executes dropped EXE
            • Loads dropped DLL
            • Suspicious use of AdjustPrivilegeToken
            PID:676
          • C:\Windows\SysWOW64\netupdsrv.exe
            C:\Windows\SysWOW64\netupdsrv.exe
            1⤵
            • Executes dropped EXE
            PID:2016

          Network

          MITRE ATT&CK Enterprise v6

          Replay Monitor

          Loading Replay Monitor...

          Downloads

          • C:\Windows\SysWOW64\hfnapi.dll

            Filesize

            106KB

            MD5

            31fb29b55cf22951cb420690ff188d09

            SHA1

            a9198805e59525668478b3df8383f0a38020bcec

            SHA256

            d5dc4f3aed262a8cc277819e3c309c8e6456dc131657e22a441db51c7947775f

            SHA512

            fea4a7c3626eaaf3ee196475edb3ccab14b29ce71c5ed943882adb15f08cdaa336c1db5a0a34bd6b657f26b1e5296fec7066588c4b3d2fd5072aafa8ffc9a6d9

          • C:\Windows\SysWOW64\hfpapi.dll

            Filesize

            244KB

            MD5

            1562a75787c84e53ad68302f7656f4a4

            SHA1

            452ed12005f38abce567116042f48685ac09560c

            SHA256

            dbe820b3711391c1a9022790b6446d8b4f5236cd0b8eadd28931dce47bdf74a4

            SHA512

            f1e9f5b600f9f28ab763158610fd4dfacb82514031c22cb37a966b3a3ea24b30aa964a8196f19b6efedd619a4f66f6e51f85af503eb64cb5f0fd47168f200b61

          • C:\Windows\SysWOW64\installd.exe

            Filesize

            108KB

            MD5

            8eae7eb5e65943e8b9cae1844c7b94e3

            SHA1

            871e6031751ea6c04c92a4a2f668c4c5738bc2b7

            SHA256

            075c7e30cac501db58431753d9c3945da96485f8726cda64a95efcc963ba1765

            SHA512

            785dcc8f468285bd89931d62a0729c75c74b8e0bb113ebea28bbedbacaa876ff532acbc1e27de3c2584186069a8b056825c4cd1fb6b4e067b6807757f49406f4

          • C:\Windows\SysWOW64\nethtsrv.exe

            Filesize

            176KB

            MD5

            8523129fca9e030bcf59ba05514e67db

            SHA1

            dcc02749df5b4e3e78234de8e2f06da9133eab3f

            SHA256

            41ed46ef5e2ef11c7253b757949d1a67f3cf5aa39e8eaff171c72e25dea2af7d

            SHA512

            56614e5ea22b72cdcb74b3fcc63a62904939a3a35c6601fa2a396e145ff20b12f19c6482bd4e6975ab3a4562ad2332f5da614f87e2adcb8c98e5b4898cad2f4e

          • C:\Windows\SysWOW64\nethtsrv.exe

            Filesize

            176KB

            MD5

            8523129fca9e030bcf59ba05514e67db

            SHA1

            dcc02749df5b4e3e78234de8e2f06da9133eab3f

            SHA256

            41ed46ef5e2ef11c7253b757949d1a67f3cf5aa39e8eaff171c72e25dea2af7d

            SHA512

            56614e5ea22b72cdcb74b3fcc63a62904939a3a35c6601fa2a396e145ff20b12f19c6482bd4e6975ab3a4562ad2332f5da614f87e2adcb8c98e5b4898cad2f4e

          • C:\Windows\SysWOW64\netupdsrv.exe

            Filesize

            158KB

            MD5

            6200f3b458b42aa39e7213bb1170c903

            SHA1

            1ffc647f308017e9bfad8025b23caaeb4557f972

            SHA256

            b1762168fa35d1347795daa6a6c436908973674f5420b14ddc37ce7081b2e745

            SHA512

            49bdcf6bd6a191dac18428df0d50afff06aa3dd2d5e143c3de845cc2fe20a3fde2badb6727b67f216f81f9c3282bd9af1750fc762b03f8c560e65b739f847767

          • C:\Windows\SysWOW64\netupdsrv.exe

            Filesize

            158KB

            MD5

            6200f3b458b42aa39e7213bb1170c903

            SHA1

            1ffc647f308017e9bfad8025b23caaeb4557f972

            SHA256

            b1762168fa35d1347795daa6a6c436908973674f5420b14ddc37ce7081b2e745

            SHA512

            49bdcf6bd6a191dac18428df0d50afff06aa3dd2d5e143c3de845cc2fe20a3fde2badb6727b67f216f81f9c3282bd9af1750fc762b03f8c560e65b739f847767

          • \Users\Admin\AppData\Local\Temp\nsy5238.tmp\System.dll

            Filesize

            11KB

            MD5

            c17103ae9072a06da581dec998343fc1

            SHA1

            b72148c6bdfaada8b8c3f950e610ee7cf1da1f8d

            SHA256

            dc58d8ad81cacb0c1ed72e33bff8f23ea40b5252b5bb55d393a0903e6819ae2f

            SHA512

            d32a71aaef18e993f28096d536e41c4d016850721b31171513ce28bbd805a54fd290b7c3e9d935f72e676a1acfb4f0dcc89d95040a0dd29f2b6975855c18986f

          • \Users\Admin\AppData\Local\Temp\nsy5238.tmp\nsExec.dll

            Filesize

            6KB

            MD5

            acc2b699edfea5bf5aae45aba3a41e96

            SHA1

            d2accf4d494e43ceb2cff69abe4dd17147d29cc2

            SHA256

            168a974eaa3f588d759db3f47c1a9fdc3494ba1fa1a73a84e5e3b2a4d58abd7e

            SHA512

            e29ea10ada98c71a18273b04f44f385b120d4e8473e441ce5748cfa44a23648814f2656f429b85440157988c88de776c6ac008dc38bf09cbb746c230a46c69fe

          • \Users\Admin\AppData\Local\Temp\nsy5238.tmp\nsExec.dll

            Filesize

            6KB

            MD5

            acc2b699edfea5bf5aae45aba3a41e96

            SHA1

            d2accf4d494e43ceb2cff69abe4dd17147d29cc2

            SHA256

            168a974eaa3f588d759db3f47c1a9fdc3494ba1fa1a73a84e5e3b2a4d58abd7e

            SHA512

            e29ea10ada98c71a18273b04f44f385b120d4e8473e441ce5748cfa44a23648814f2656f429b85440157988c88de776c6ac008dc38bf09cbb746c230a46c69fe

          • \Users\Admin\AppData\Local\Temp\nsy5238.tmp\nsExec.dll

            Filesize

            6KB

            MD5

            acc2b699edfea5bf5aae45aba3a41e96

            SHA1

            d2accf4d494e43ceb2cff69abe4dd17147d29cc2

            SHA256

            168a974eaa3f588d759db3f47c1a9fdc3494ba1fa1a73a84e5e3b2a4d58abd7e

            SHA512

            e29ea10ada98c71a18273b04f44f385b120d4e8473e441ce5748cfa44a23648814f2656f429b85440157988c88de776c6ac008dc38bf09cbb746c230a46c69fe

          • \Users\Admin\AppData\Local\Temp\nsy5238.tmp\nsExec.dll

            Filesize

            6KB

            MD5

            acc2b699edfea5bf5aae45aba3a41e96

            SHA1

            d2accf4d494e43ceb2cff69abe4dd17147d29cc2

            SHA256

            168a974eaa3f588d759db3f47c1a9fdc3494ba1fa1a73a84e5e3b2a4d58abd7e

            SHA512

            e29ea10ada98c71a18273b04f44f385b120d4e8473e441ce5748cfa44a23648814f2656f429b85440157988c88de776c6ac008dc38bf09cbb746c230a46c69fe

          • \Windows\SysWOW64\hfnapi.dll

            Filesize

            106KB

            MD5

            31fb29b55cf22951cb420690ff188d09

            SHA1

            a9198805e59525668478b3df8383f0a38020bcec

            SHA256

            d5dc4f3aed262a8cc277819e3c309c8e6456dc131657e22a441db51c7947775f

            SHA512

            fea4a7c3626eaaf3ee196475edb3ccab14b29ce71c5ed943882adb15f08cdaa336c1db5a0a34bd6b657f26b1e5296fec7066588c4b3d2fd5072aafa8ffc9a6d9

          • \Windows\SysWOW64\hfnapi.dll

            Filesize

            106KB

            MD5

            31fb29b55cf22951cb420690ff188d09

            SHA1

            a9198805e59525668478b3df8383f0a38020bcec

            SHA256

            d5dc4f3aed262a8cc277819e3c309c8e6456dc131657e22a441db51c7947775f

            SHA512

            fea4a7c3626eaaf3ee196475edb3ccab14b29ce71c5ed943882adb15f08cdaa336c1db5a0a34bd6b657f26b1e5296fec7066588c4b3d2fd5072aafa8ffc9a6d9

          • \Windows\SysWOW64\hfnapi.dll

            Filesize

            106KB

            MD5

            31fb29b55cf22951cb420690ff188d09

            SHA1

            a9198805e59525668478b3df8383f0a38020bcec

            SHA256

            d5dc4f3aed262a8cc277819e3c309c8e6456dc131657e22a441db51c7947775f

            SHA512

            fea4a7c3626eaaf3ee196475edb3ccab14b29ce71c5ed943882adb15f08cdaa336c1db5a0a34bd6b657f26b1e5296fec7066588c4b3d2fd5072aafa8ffc9a6d9

          • \Windows\SysWOW64\hfpapi.dll

            Filesize

            244KB

            MD5

            1562a75787c84e53ad68302f7656f4a4

            SHA1

            452ed12005f38abce567116042f48685ac09560c

            SHA256

            dbe820b3711391c1a9022790b6446d8b4f5236cd0b8eadd28931dce47bdf74a4

            SHA512

            f1e9f5b600f9f28ab763158610fd4dfacb82514031c22cb37a966b3a3ea24b30aa964a8196f19b6efedd619a4f66f6e51f85af503eb64cb5f0fd47168f200b61

          • \Windows\SysWOW64\hfpapi.dll

            Filesize

            244KB

            MD5

            1562a75787c84e53ad68302f7656f4a4

            SHA1

            452ed12005f38abce567116042f48685ac09560c

            SHA256

            dbe820b3711391c1a9022790b6446d8b4f5236cd0b8eadd28931dce47bdf74a4

            SHA512

            f1e9f5b600f9f28ab763158610fd4dfacb82514031c22cb37a966b3a3ea24b30aa964a8196f19b6efedd619a4f66f6e51f85af503eb64cb5f0fd47168f200b61

          • \Windows\SysWOW64\installd.exe

            Filesize

            108KB

            MD5

            8eae7eb5e65943e8b9cae1844c7b94e3

            SHA1

            871e6031751ea6c04c92a4a2f668c4c5738bc2b7

            SHA256

            075c7e30cac501db58431753d9c3945da96485f8726cda64a95efcc963ba1765

            SHA512

            785dcc8f468285bd89931d62a0729c75c74b8e0bb113ebea28bbedbacaa876ff532acbc1e27de3c2584186069a8b056825c4cd1fb6b4e067b6807757f49406f4

          • \Windows\SysWOW64\nethtsrv.exe

            Filesize

            176KB

            MD5

            8523129fca9e030bcf59ba05514e67db

            SHA1

            dcc02749df5b4e3e78234de8e2f06da9133eab3f

            SHA256

            41ed46ef5e2ef11c7253b757949d1a67f3cf5aa39e8eaff171c72e25dea2af7d

            SHA512

            56614e5ea22b72cdcb74b3fcc63a62904939a3a35c6601fa2a396e145ff20b12f19c6482bd4e6975ab3a4562ad2332f5da614f87e2adcb8c98e5b4898cad2f4e

          • \Windows\SysWOW64\netupdsrv.exe

            Filesize

            158KB

            MD5

            6200f3b458b42aa39e7213bb1170c903

            SHA1

            1ffc647f308017e9bfad8025b23caaeb4557f972

            SHA256

            b1762168fa35d1347795daa6a6c436908973674f5420b14ddc37ce7081b2e745

            SHA512

            49bdcf6bd6a191dac18428df0d50afff06aa3dd2d5e143c3de845cc2fe20a3fde2badb6727b67f216f81f9c3282bd9af1750fc762b03f8c560e65b739f847767

          • memory/1812-54-0x00000000753F1000-0x00000000753F3000-memory.dmp

            Filesize

            8KB

          • memory/1812-69-0x0000000000360000-0x00000000007BE000-memory.dmp

            Filesize

            4.4MB

          • memory/1812-62-0x0000000000360000-0x00000000007BE000-memory.dmp

            Filesize

            4.4MB

          • memory/1812-91-0x0000000000360000-0x00000000007BE000-memory.dmp

            Filesize

            4.4MB