Analysis

  • max time kernel
    90s
  • max time network
    156s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20220901-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20220901-enlocale:en-usos:windows10-2004-x64system
  • submitted
    23-11-2022 10:59

General

  • Target

    2621802e4ded25a1512da6e7fb06758b99523313fc8f0a943d12abd7a1691b55.exe

  • Size

    445KB

  • MD5

    200eeff348fa5726f80e47932219e183

  • SHA1

    2325c18567b1efc09f9b0253b107de6c10eabe65

  • SHA256

    2621802e4ded25a1512da6e7fb06758b99523313fc8f0a943d12abd7a1691b55

  • SHA512

    d7fc14712d811b1172db2abbc5a60666d63428ebe8707b1981941344f297a35dae2348ca957c2994d716e42bf9d2e8e67f7a329854cc56991b53ebda917eb547

  • SSDEEP

    6144:XzfcXZ1UHPnS7hrRhQSvcgiwpTfeWhwuLkCo6SUakK8mLnNIjL3aso3GkVF5+Dil:YjNFrjZvcx+fwuQrkrmLs8qDvJtTBPy

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\2621802e4ded25a1512da6e7fb06758b99523313fc8f0a943d12abd7a1691b55.exe
    "C:\Users\Admin\AppData\Local\Temp\2621802e4ded25a1512da6e7fb06758b99523313fc8f0a943d12abd7a1691b55.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:4980
    • C:\Windows\SysWOW64\net.exe
      net stop nethttpservice
      2⤵
      • Suspicious use of WriteProcessMemory
      PID:4372
      • C:\Windows\SysWOW64\net1.exe
        C:\Windows\system32\net1 stop nethttpservice
        3⤵
          PID:4652
      • C:\Windows\SysWOW64\net.exe
        net stop serviceupdater
        2⤵
        • Suspicious use of WriteProcessMemory
        PID:1048
        • C:\Windows\SysWOW64\net1.exe
          C:\Windows\system32\net1 stop serviceupdater
          3⤵
            PID:4228
        • C:\Windows\SysWOW64\installd.exe
          "C:\Windows\system32\installd.exe" nethfdrv
          2⤵
          • Executes dropped EXE
          • Loads dropped DLL
          PID:3068
        • C:\Windows\SysWOW64\nethtsrv.exe
          "C:\Windows\system32\nethtsrv.exe" -nfdi
          2⤵
          • Executes dropped EXE
          • Loads dropped DLL
          PID:1388
        • C:\Windows\SysWOW64\netupdsrv.exe
          "C:\Windows\system32\netupdsrv.exe" -nfdi
          2⤵
          • Executes dropped EXE
          PID:2424
        • C:\Windows\SysWOW64\net.exe
          net start nethttpservice
          2⤵
          • Suspicious use of WriteProcessMemory
          PID:3496
          • C:\Windows\SysWOW64\net1.exe
            C:\Windows\system32\net1 start nethttpservice
            3⤵
              PID:1920
          • C:\Windows\SysWOW64\net.exe
            net start serviceupdater
            2⤵
            • Suspicious use of WriteProcessMemory
            PID:2168
            • C:\Windows\SysWOW64\net1.exe
              C:\Windows\system32\net1 start serviceupdater
              3⤵
                PID:1788
          • 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:4420
          • C:\Windows\SysWOW64\netupdsrv.exe
            C:\Windows\SysWOW64\netupdsrv.exe
            1⤵
            • Executes dropped EXE
            PID:628

          Network

          MITRE ATT&CK Enterprise v6

          Replay Monitor

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          Downloads

          • C:\Users\Admin\AppData\Local\Temp\nsmB3C6.tmp\System.dll

            Filesize

            11KB

            MD5

            c17103ae9072a06da581dec998343fc1

            SHA1

            b72148c6bdfaada8b8c3f950e610ee7cf1da1f8d

            SHA256

            dc58d8ad81cacb0c1ed72e33bff8f23ea40b5252b5bb55d393a0903e6819ae2f

            SHA512

            d32a71aaef18e993f28096d536e41c4d016850721b31171513ce28bbd805a54fd290b7c3e9d935f72e676a1acfb4f0dcc89d95040a0dd29f2b6975855c18986f

          • C:\Users\Admin\AppData\Local\Temp\nsmB3C6.tmp\nsExec.dll

            Filesize

            6KB

            MD5

            acc2b699edfea5bf5aae45aba3a41e96

            SHA1

            d2accf4d494e43ceb2cff69abe4dd17147d29cc2

            SHA256

            168a974eaa3f588d759db3f47c1a9fdc3494ba1fa1a73a84e5e3b2a4d58abd7e

            SHA512

            e29ea10ada98c71a18273b04f44f385b120d4e8473e441ce5748cfa44a23648814f2656f429b85440157988c88de776c6ac008dc38bf09cbb746c230a46c69fe

          • C:\Users\Admin\AppData\Local\Temp\nsmB3C6.tmp\nsExec.dll

            Filesize

            6KB

            MD5

            acc2b699edfea5bf5aae45aba3a41e96

            SHA1

            d2accf4d494e43ceb2cff69abe4dd17147d29cc2

            SHA256

            168a974eaa3f588d759db3f47c1a9fdc3494ba1fa1a73a84e5e3b2a4d58abd7e

            SHA512

            e29ea10ada98c71a18273b04f44f385b120d4e8473e441ce5748cfa44a23648814f2656f429b85440157988c88de776c6ac008dc38bf09cbb746c230a46c69fe

          • C:\Users\Admin\AppData\Local\Temp\nsmB3C6.tmp\nsExec.dll

            Filesize

            6KB

            MD5

            acc2b699edfea5bf5aae45aba3a41e96

            SHA1

            d2accf4d494e43ceb2cff69abe4dd17147d29cc2

            SHA256

            168a974eaa3f588d759db3f47c1a9fdc3494ba1fa1a73a84e5e3b2a4d58abd7e

            SHA512

            e29ea10ada98c71a18273b04f44f385b120d4e8473e441ce5748cfa44a23648814f2656f429b85440157988c88de776c6ac008dc38bf09cbb746c230a46c69fe

          • C:\Users\Admin\AppData\Local\Temp\nsmB3C6.tmp\nsExec.dll

            Filesize

            6KB

            MD5

            acc2b699edfea5bf5aae45aba3a41e96

            SHA1

            d2accf4d494e43ceb2cff69abe4dd17147d29cc2

            SHA256

            168a974eaa3f588d759db3f47c1a9fdc3494ba1fa1a73a84e5e3b2a4d58abd7e

            SHA512

            e29ea10ada98c71a18273b04f44f385b120d4e8473e441ce5748cfa44a23648814f2656f429b85440157988c88de776c6ac008dc38bf09cbb746c230a46c69fe

          • C:\Users\Admin\AppData\Local\Temp\nsmB3C6.tmp\nsExec.dll

            Filesize

            6KB

            MD5

            acc2b699edfea5bf5aae45aba3a41e96

            SHA1

            d2accf4d494e43ceb2cff69abe4dd17147d29cc2

            SHA256

            168a974eaa3f588d759db3f47c1a9fdc3494ba1fa1a73a84e5e3b2a4d58abd7e

            SHA512

            e29ea10ada98c71a18273b04f44f385b120d4e8473e441ce5748cfa44a23648814f2656f429b85440157988c88de776c6ac008dc38bf09cbb746c230a46c69fe

          • C:\Users\Admin\AppData\Local\Temp\nsmB3C6.tmp\nsExec.dll

            Filesize

            6KB

            MD5

            acc2b699edfea5bf5aae45aba3a41e96

            SHA1

            d2accf4d494e43ceb2cff69abe4dd17147d29cc2

            SHA256

            168a974eaa3f588d759db3f47c1a9fdc3494ba1fa1a73a84e5e3b2a4d58abd7e

            SHA512

            e29ea10ada98c71a18273b04f44f385b120d4e8473e441ce5748cfa44a23648814f2656f429b85440157988c88de776c6ac008dc38bf09cbb746c230a46c69fe

          • C:\Users\Admin\AppData\Local\Temp\nsmB3C6.tmp\nsExec.dll

            Filesize

            6KB

            MD5

            acc2b699edfea5bf5aae45aba3a41e96

            SHA1

            d2accf4d494e43ceb2cff69abe4dd17147d29cc2

            SHA256

            168a974eaa3f588d759db3f47c1a9fdc3494ba1fa1a73a84e5e3b2a4d58abd7e

            SHA512

            e29ea10ada98c71a18273b04f44f385b120d4e8473e441ce5748cfa44a23648814f2656f429b85440157988c88de776c6ac008dc38bf09cbb746c230a46c69fe

          • C:\Users\Admin\AppData\Local\Temp\nsmB3C6.tmp\nsExec.dll

            Filesize

            6KB

            MD5

            acc2b699edfea5bf5aae45aba3a41e96

            SHA1

            d2accf4d494e43ceb2cff69abe4dd17147d29cc2

            SHA256

            168a974eaa3f588d759db3f47c1a9fdc3494ba1fa1a73a84e5e3b2a4d58abd7e

            SHA512

            e29ea10ada98c71a18273b04f44f385b120d4e8473e441ce5748cfa44a23648814f2656f429b85440157988c88de776c6ac008dc38bf09cbb746c230a46c69fe

          • C:\Windows\SysWOW64\hfnapi.dll

            Filesize

            106KB

            MD5

            f7f574a512308f718f5d440048583db8

            SHA1

            128808976cb40f1529a4c894652c966ec5a2598b

            SHA256

            d5cbcf280703f2a2545d774cf8edb6ef284658441f20b7c16b552b129f992b71

            SHA512

            2a380f19240c0efc3701de92b8c769c4fc6d0098100e526b57ea87f7111d8afcd6a70dd1dbf0f1d6e1b000fd98801632cd80dda823738a877e27b6f1799e12ce

          • C:\Windows\SysWOW64\hfnapi.dll

            Filesize

            106KB

            MD5

            f7f574a512308f718f5d440048583db8

            SHA1

            128808976cb40f1529a4c894652c966ec5a2598b

            SHA256

            d5cbcf280703f2a2545d774cf8edb6ef284658441f20b7c16b552b129f992b71

            SHA512

            2a380f19240c0efc3701de92b8c769c4fc6d0098100e526b57ea87f7111d8afcd6a70dd1dbf0f1d6e1b000fd98801632cd80dda823738a877e27b6f1799e12ce

          • C:\Windows\SysWOW64\hfnapi.dll

            Filesize

            106KB

            MD5

            f7f574a512308f718f5d440048583db8

            SHA1

            128808976cb40f1529a4c894652c966ec5a2598b

            SHA256

            d5cbcf280703f2a2545d774cf8edb6ef284658441f20b7c16b552b129f992b71

            SHA512

            2a380f19240c0efc3701de92b8c769c4fc6d0098100e526b57ea87f7111d8afcd6a70dd1dbf0f1d6e1b000fd98801632cd80dda823738a877e27b6f1799e12ce

          • C:\Windows\SysWOW64\hfnapi.dll

            Filesize

            106KB

            MD5

            f7f574a512308f718f5d440048583db8

            SHA1

            128808976cb40f1529a4c894652c966ec5a2598b

            SHA256

            d5cbcf280703f2a2545d774cf8edb6ef284658441f20b7c16b552b129f992b71

            SHA512

            2a380f19240c0efc3701de92b8c769c4fc6d0098100e526b57ea87f7111d8afcd6a70dd1dbf0f1d6e1b000fd98801632cd80dda823738a877e27b6f1799e12ce

          • C:\Windows\SysWOW64\hfpapi.dll

            Filesize

            241KB

            MD5

            b0aab32fe48cd40e63ddb055f9e3622e

            SHA1

            745e625049fe88463a8733e37bfff293083e7cb3

            SHA256

            2c8c06f60ff29954ff400d4a4686dbaff3679fd58e14489c2e8f93df13830d3a

            SHA512

            ac470b2292b3dd878eb1272a25ce85ce13dc267ad0d7948fa23048b5fb1678209dab665d5f376a13d2151d36a0d0f4d883bb1950c1abb794596585acbd8ba133

          • C:\Windows\SysWOW64\hfpapi.dll

            Filesize

            241KB

            MD5

            b0aab32fe48cd40e63ddb055f9e3622e

            SHA1

            745e625049fe88463a8733e37bfff293083e7cb3

            SHA256

            2c8c06f60ff29954ff400d4a4686dbaff3679fd58e14489c2e8f93df13830d3a

            SHA512

            ac470b2292b3dd878eb1272a25ce85ce13dc267ad0d7948fa23048b5fb1678209dab665d5f376a13d2151d36a0d0f4d883bb1950c1abb794596585acbd8ba133

          • C:\Windows\SysWOW64\hfpapi.dll

            Filesize

            241KB

            MD5

            b0aab32fe48cd40e63ddb055f9e3622e

            SHA1

            745e625049fe88463a8733e37bfff293083e7cb3

            SHA256

            2c8c06f60ff29954ff400d4a4686dbaff3679fd58e14489c2e8f93df13830d3a

            SHA512

            ac470b2292b3dd878eb1272a25ce85ce13dc267ad0d7948fa23048b5fb1678209dab665d5f376a13d2151d36a0d0f4d883bb1950c1abb794596585acbd8ba133

          • C:\Windows\SysWOW64\installd.exe

            Filesize

            108KB

            MD5

            219a36030e216c3710678acdf98c1df3

            SHA1

            16843220cb9dacb8cb73bd24e941961418cdf7c8

            SHA256

            acb4dd75b89c9f91bdc86f508fedfa0dccaf2df10f43a357d7c95a65598ff5a5

            SHA512

            24d3638d475512af3b903658e5ea9a6da1aac8e4aeab30f65d92720e648ae322e0778b034fb4592f6785a110475f4db6928198858effa32e4bce9ba9c01206ad

          • C:\Windows\SysWOW64\installd.exe

            Filesize

            108KB

            MD5

            219a36030e216c3710678acdf98c1df3

            SHA1

            16843220cb9dacb8cb73bd24e941961418cdf7c8

            SHA256

            acb4dd75b89c9f91bdc86f508fedfa0dccaf2df10f43a357d7c95a65598ff5a5

            SHA512

            24d3638d475512af3b903658e5ea9a6da1aac8e4aeab30f65d92720e648ae322e0778b034fb4592f6785a110475f4db6928198858effa32e4bce9ba9c01206ad

          • C:\Windows\SysWOW64\nethtsrv.exe

            Filesize

            176KB

            MD5

            5f734ca705d15da8385eb9903f5a7920

            SHA1

            0a64031d090aaba748f972f1b40b5f49194277da

            SHA256

            1a4ec41ba8aca31afeaeb685be12f8f8d88d8c203661617bb2dc3d9de9c70c1a

            SHA512

            00fdfa0012d6272a490f9b8cac772c51204a1168918231be459755d3c2f78506738de1980e52f9c2243cdd92fdfe0052530245a6779449c18f816972364f85b8

          • C:\Windows\SysWOW64\nethtsrv.exe

            Filesize

            176KB

            MD5

            5f734ca705d15da8385eb9903f5a7920

            SHA1

            0a64031d090aaba748f972f1b40b5f49194277da

            SHA256

            1a4ec41ba8aca31afeaeb685be12f8f8d88d8c203661617bb2dc3d9de9c70c1a

            SHA512

            00fdfa0012d6272a490f9b8cac772c51204a1168918231be459755d3c2f78506738de1980e52f9c2243cdd92fdfe0052530245a6779449c18f816972364f85b8

          • C:\Windows\SysWOW64\nethtsrv.exe

            Filesize

            176KB

            MD5

            5f734ca705d15da8385eb9903f5a7920

            SHA1

            0a64031d090aaba748f972f1b40b5f49194277da

            SHA256

            1a4ec41ba8aca31afeaeb685be12f8f8d88d8c203661617bb2dc3d9de9c70c1a

            SHA512

            00fdfa0012d6272a490f9b8cac772c51204a1168918231be459755d3c2f78506738de1980e52f9c2243cdd92fdfe0052530245a6779449c18f816972364f85b8

          • C:\Windows\SysWOW64\netupdsrv.exe

            Filesize

            159KB

            MD5

            7902062a536d7397050f864500c9a029

            SHA1

            0a8540b2834e672f7779c12f1aa9125c0e1405b5

            SHA256

            cc882d8dff06e397a1bf03af4efde2abeb46660d4c07e925fece91d1887d3346

            SHA512

            b24ed1c3bfc3c4eea09f731be7c563bc966caa80ae11ce858e208ad2f6081a1dc24b4ed4d771360d7398b0e090425da536e5740c6251540d659245e10b296fc3

          • C:\Windows\SysWOW64\netupdsrv.exe

            Filesize

            159KB

            MD5

            7902062a536d7397050f864500c9a029

            SHA1

            0a8540b2834e672f7779c12f1aa9125c0e1405b5

            SHA256

            cc882d8dff06e397a1bf03af4efde2abeb46660d4c07e925fece91d1887d3346

            SHA512

            b24ed1c3bfc3c4eea09f731be7c563bc966caa80ae11ce858e208ad2f6081a1dc24b4ed4d771360d7398b0e090425da536e5740c6251540d659245e10b296fc3

          • C:\Windows\SysWOW64\netupdsrv.exe

            Filesize

            159KB

            MD5

            7902062a536d7397050f864500c9a029

            SHA1

            0a8540b2834e672f7779c12f1aa9125c0e1405b5

            SHA256

            cc882d8dff06e397a1bf03af4efde2abeb46660d4c07e925fece91d1887d3346

            SHA512

            b24ed1c3bfc3c4eea09f731be7c563bc966caa80ae11ce858e208ad2f6081a1dc24b4ed4d771360d7398b0e090425da536e5740c6251540d659245e10b296fc3

          • memory/1048-139-0x0000000000000000-mapping.dmp

          • memory/1388-146-0x0000000000000000-mapping.dmp

          • memory/1788-165-0x0000000000000000-mapping.dmp

          • memory/1920-158-0x0000000000000000-mapping.dmp

          • memory/2168-164-0x0000000000000000-mapping.dmp

          • memory/2424-152-0x0000000000000000-mapping.dmp

          • memory/3068-141-0x0000000000000000-mapping.dmp

          • memory/3496-157-0x0000000000000000-mapping.dmp

          • memory/4228-140-0x0000000000000000-mapping.dmp

          • memory/4372-135-0x0000000000000000-mapping.dmp

          • memory/4652-136-0x0000000000000000-mapping.dmp