Analysis

  • max time kernel
    136s
  • max time network
    146s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20220812-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20220812-enlocale:en-usos:windows10-2004-x64system
  • submitted
    25/11/2022, 13:52

General

  • Target

    bbb08c51a61b8cd7a3143e16279bb5dcaa90720b21ad15cd312c643fab4fb0db.exe

  • Size

    563KB

  • MD5

    bcb6b4cef2a7a004b43750b6b265035e

  • SHA1

    79f63c1fae42dadb08b996d8b59213fc79bdb138

  • SHA256

    bbb08c51a61b8cd7a3143e16279bb5dcaa90720b21ad15cd312c643fab4fb0db

  • SHA512

    5c8a3148acb55d09710ca60cefe9d86d550f54706470e6f525e37ab62840cab78a20c7094e7c99371961b7235f674e0856838d3cbc2e155b5cecb6a735711b14

  • SSDEEP

    12288:2PRYzbbfwVPlqmp0V4NLfHXjjXfgrXobqwnD0G72rUCl9:rz3fClzmVifHzrI8D0G7y

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\bbb08c51a61b8cd7a3143e16279bb5dcaa90720b21ad15cd312c643fab4fb0db.exe
    "C:\Users\Admin\AppData\Local\Temp\bbb08c51a61b8cd7a3143e16279bb5dcaa90720b21ad15cd312c643fab4fb0db.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:4968
    • C:\Windows\SysWOW64\net.exe
      net stop nethttpservice
      2⤵
      • Suspicious use of WriteProcessMemory
      PID:4164
      • C:\Windows\SysWOW64\net1.exe
        C:\Windows\system32\net1 stop nethttpservice
        3⤵
          PID:1952
      • C:\Windows\SysWOW64\net.exe
        net stop serviceupdater
        2⤵
        • Suspicious use of WriteProcessMemory
        PID:4556
        • C:\Windows\SysWOW64\net1.exe
          C:\Windows\system32\net1 stop serviceupdater
          3⤵
            PID:4528
        • C:\Windows\SysWOW64\installd.exe
          "C:\Windows\system32\installd.exe" nethfdrv
          2⤵
          • Executes dropped EXE
          • Loads dropped DLL
          PID:3160
        • C:\Windows\SysWOW64\nethtsrv.exe
          "C:\Windows\system32\nethtsrv.exe" -nfdi
          2⤵
          • Executes dropped EXE
          • Loads dropped DLL
          PID:388
        • C:\Windows\SysWOW64\netupdsrv.exe
          "C:\Windows\system32\netupdsrv.exe" -nfdi
          2⤵
          • Executes dropped EXE
          PID:3656
        • C:\Windows\SysWOW64\net.exe
          net start nethttpservice
          2⤵
          • Suspicious use of WriteProcessMemory
          PID:4432
          • C:\Windows\SysWOW64\net1.exe
            C:\Windows\system32\net1 start nethttpservice
            3⤵
              PID:2716
          • C:\Windows\SysWOW64\net.exe
            net start serviceupdater
            2⤵
            • Suspicious use of WriteProcessMemory
            PID:2284
            • C:\Windows\SysWOW64\net1.exe
              C:\Windows\system32\net1 start serviceupdater
              3⤵
                PID:3812
          • 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:4696
          • C:\Windows\SysWOW64\netupdsrv.exe
            C:\Windows\SysWOW64\netupdsrv.exe
            1⤵
            • Executes dropped EXE
            PID:3816

          Network

          MITRE ATT&CK Enterprise v6

          Replay Monitor

          Loading Replay Monitor...

          Downloads

          • C:\Users\Admin\AppData\Local\Temp\nsiC3B4.tmp\System.dll

            Filesize

            11KB

            MD5

            c17103ae9072a06da581dec998343fc1

            SHA1

            b72148c6bdfaada8b8c3f950e610ee7cf1da1f8d

            SHA256

            dc58d8ad81cacb0c1ed72e33bff8f23ea40b5252b5bb55d393a0903e6819ae2f

            SHA512

            d32a71aaef18e993f28096d536e41c4d016850721b31171513ce28bbd805a54fd290b7c3e9d935f72e676a1acfb4f0dcc89d95040a0dd29f2b6975855c18986f

          • C:\Users\Admin\AppData\Local\Temp\nsiC3B4.tmp\nsExec.dll

            Filesize

            6KB

            MD5

            acc2b699edfea5bf5aae45aba3a41e96

            SHA1

            d2accf4d494e43ceb2cff69abe4dd17147d29cc2

            SHA256

            168a974eaa3f588d759db3f47c1a9fdc3494ba1fa1a73a84e5e3b2a4d58abd7e

            SHA512

            e29ea10ada98c71a18273b04f44f385b120d4e8473e441ce5748cfa44a23648814f2656f429b85440157988c88de776c6ac008dc38bf09cbb746c230a46c69fe

          • C:\Users\Admin\AppData\Local\Temp\nsiC3B4.tmp\nsExec.dll

            Filesize

            6KB

            MD5

            acc2b699edfea5bf5aae45aba3a41e96

            SHA1

            d2accf4d494e43ceb2cff69abe4dd17147d29cc2

            SHA256

            168a974eaa3f588d759db3f47c1a9fdc3494ba1fa1a73a84e5e3b2a4d58abd7e

            SHA512

            e29ea10ada98c71a18273b04f44f385b120d4e8473e441ce5748cfa44a23648814f2656f429b85440157988c88de776c6ac008dc38bf09cbb746c230a46c69fe

          • C:\Users\Admin\AppData\Local\Temp\nsiC3B4.tmp\nsExec.dll

            Filesize

            6KB

            MD5

            acc2b699edfea5bf5aae45aba3a41e96

            SHA1

            d2accf4d494e43ceb2cff69abe4dd17147d29cc2

            SHA256

            168a974eaa3f588d759db3f47c1a9fdc3494ba1fa1a73a84e5e3b2a4d58abd7e

            SHA512

            e29ea10ada98c71a18273b04f44f385b120d4e8473e441ce5748cfa44a23648814f2656f429b85440157988c88de776c6ac008dc38bf09cbb746c230a46c69fe

          • C:\Users\Admin\AppData\Local\Temp\nsiC3B4.tmp\nsExec.dll

            Filesize

            6KB

            MD5

            acc2b699edfea5bf5aae45aba3a41e96

            SHA1

            d2accf4d494e43ceb2cff69abe4dd17147d29cc2

            SHA256

            168a974eaa3f588d759db3f47c1a9fdc3494ba1fa1a73a84e5e3b2a4d58abd7e

            SHA512

            e29ea10ada98c71a18273b04f44f385b120d4e8473e441ce5748cfa44a23648814f2656f429b85440157988c88de776c6ac008dc38bf09cbb746c230a46c69fe

          • C:\Users\Admin\AppData\Local\Temp\nsiC3B4.tmp\nsExec.dll

            Filesize

            6KB

            MD5

            acc2b699edfea5bf5aae45aba3a41e96

            SHA1

            d2accf4d494e43ceb2cff69abe4dd17147d29cc2

            SHA256

            168a974eaa3f588d759db3f47c1a9fdc3494ba1fa1a73a84e5e3b2a4d58abd7e

            SHA512

            e29ea10ada98c71a18273b04f44f385b120d4e8473e441ce5748cfa44a23648814f2656f429b85440157988c88de776c6ac008dc38bf09cbb746c230a46c69fe

          • C:\Users\Admin\AppData\Local\Temp\nsiC3B4.tmp\nsExec.dll

            Filesize

            6KB

            MD5

            acc2b699edfea5bf5aae45aba3a41e96

            SHA1

            d2accf4d494e43ceb2cff69abe4dd17147d29cc2

            SHA256

            168a974eaa3f588d759db3f47c1a9fdc3494ba1fa1a73a84e5e3b2a4d58abd7e

            SHA512

            e29ea10ada98c71a18273b04f44f385b120d4e8473e441ce5748cfa44a23648814f2656f429b85440157988c88de776c6ac008dc38bf09cbb746c230a46c69fe

          • C:\Users\Admin\AppData\Local\Temp\nsiC3B4.tmp\nsExec.dll

            Filesize

            6KB

            MD5

            acc2b699edfea5bf5aae45aba3a41e96

            SHA1

            d2accf4d494e43ceb2cff69abe4dd17147d29cc2

            SHA256

            168a974eaa3f588d759db3f47c1a9fdc3494ba1fa1a73a84e5e3b2a4d58abd7e

            SHA512

            e29ea10ada98c71a18273b04f44f385b120d4e8473e441ce5748cfa44a23648814f2656f429b85440157988c88de776c6ac008dc38bf09cbb746c230a46c69fe

          • C:\Users\Admin\AppData\Local\Temp\nsiC3B4.tmp\nsExec.dll

            Filesize

            6KB

            MD5

            acc2b699edfea5bf5aae45aba3a41e96

            SHA1

            d2accf4d494e43ceb2cff69abe4dd17147d29cc2

            SHA256

            168a974eaa3f588d759db3f47c1a9fdc3494ba1fa1a73a84e5e3b2a4d58abd7e

            SHA512

            e29ea10ada98c71a18273b04f44f385b120d4e8473e441ce5748cfa44a23648814f2656f429b85440157988c88de776c6ac008dc38bf09cbb746c230a46c69fe

          • C:\Windows\SysWOW64\hfnapi.dll

            Filesize

            106KB

            MD5

            d10b4ae727c8a21de42398ec17f8aa80

            SHA1

            390691e5704d6bd29c044febbfb335c9a1450886

            SHA256

            9ab1675bed9fa53fccdd34f9fc13b2ce4f2c4b3a843dbd0d6f9ecac3d1e7f298

            SHA512

            80b72572d62ece7c4a5dbfab8a3113664149766174cfe1a9c2e1e1cef0a8349640641925f390749a2d729b842bb50d052d359abe7bec5f812e45b8e430dea95e

          • C:\Windows\SysWOW64\hfnapi.dll

            Filesize

            106KB

            MD5

            d10b4ae727c8a21de42398ec17f8aa80

            SHA1

            390691e5704d6bd29c044febbfb335c9a1450886

            SHA256

            9ab1675bed9fa53fccdd34f9fc13b2ce4f2c4b3a843dbd0d6f9ecac3d1e7f298

            SHA512

            80b72572d62ece7c4a5dbfab8a3113664149766174cfe1a9c2e1e1cef0a8349640641925f390749a2d729b842bb50d052d359abe7bec5f812e45b8e430dea95e

          • C:\Windows\SysWOW64\hfnapi.dll

            Filesize

            106KB

            MD5

            d10b4ae727c8a21de42398ec17f8aa80

            SHA1

            390691e5704d6bd29c044febbfb335c9a1450886

            SHA256

            9ab1675bed9fa53fccdd34f9fc13b2ce4f2c4b3a843dbd0d6f9ecac3d1e7f298

            SHA512

            80b72572d62ece7c4a5dbfab8a3113664149766174cfe1a9c2e1e1cef0a8349640641925f390749a2d729b842bb50d052d359abe7bec5f812e45b8e430dea95e

          • C:\Windows\SysWOW64\hfnapi.dll

            Filesize

            106KB

            MD5

            d10b4ae727c8a21de42398ec17f8aa80

            SHA1

            390691e5704d6bd29c044febbfb335c9a1450886

            SHA256

            9ab1675bed9fa53fccdd34f9fc13b2ce4f2c4b3a843dbd0d6f9ecac3d1e7f298

            SHA512

            80b72572d62ece7c4a5dbfab8a3113664149766174cfe1a9c2e1e1cef0a8349640641925f390749a2d729b842bb50d052d359abe7bec5f812e45b8e430dea95e

          • C:\Windows\SysWOW64\hfpapi.dll

            Filesize

            244KB

            MD5

            acc46df70e53a80d131b90d1d6229bf3

            SHA1

            1292e47a231543db466d9fc80bc1593ae17af223

            SHA256

            d334886aa77524938503c963d532855fdff63f355acf8ee611cb601e79986df0

            SHA512

            3ea9854398a79c5c854a54d140adc1845816d871cf639362fcee222f84b2adb627ffea9c568be88c8813cd231bc5641f83428914a6e13016f8943831a6d260ff

          • C:\Windows\SysWOW64\hfpapi.dll

            Filesize

            244KB

            MD5

            acc46df70e53a80d131b90d1d6229bf3

            SHA1

            1292e47a231543db466d9fc80bc1593ae17af223

            SHA256

            d334886aa77524938503c963d532855fdff63f355acf8ee611cb601e79986df0

            SHA512

            3ea9854398a79c5c854a54d140adc1845816d871cf639362fcee222f84b2adb627ffea9c568be88c8813cd231bc5641f83428914a6e13016f8943831a6d260ff

          • C:\Windows\SysWOW64\hfpapi.dll

            Filesize

            244KB

            MD5

            acc46df70e53a80d131b90d1d6229bf3

            SHA1

            1292e47a231543db466d9fc80bc1593ae17af223

            SHA256

            d334886aa77524938503c963d532855fdff63f355acf8ee611cb601e79986df0

            SHA512

            3ea9854398a79c5c854a54d140adc1845816d871cf639362fcee222f84b2adb627ffea9c568be88c8813cd231bc5641f83428914a6e13016f8943831a6d260ff

          • C:\Windows\SysWOW64\installd.exe

            Filesize

            108KB

            MD5

            53444cc1d1469e3eedfa9218bca4bfd1

            SHA1

            3a4a8768ce08eb0195aed30d2e36549406df5ad1

            SHA256

            a173a0648ab16f0f8b2fc80005410ed46a4fc7e9db0c9f21b826111ba1a2376e

            SHA512

            1600aa6471558a82555c9ada5aef6cf48a88d90c1297b49b589596e93042c52a14633ecd7d1a30760ed06904984c00883b48964f488f8070395ae9b0f0f75b62

          • C:\Windows\SysWOW64\installd.exe

            Filesize

            108KB

            MD5

            53444cc1d1469e3eedfa9218bca4bfd1

            SHA1

            3a4a8768ce08eb0195aed30d2e36549406df5ad1

            SHA256

            a173a0648ab16f0f8b2fc80005410ed46a4fc7e9db0c9f21b826111ba1a2376e

            SHA512

            1600aa6471558a82555c9ada5aef6cf48a88d90c1297b49b589596e93042c52a14633ecd7d1a30760ed06904984c00883b48964f488f8070395ae9b0f0f75b62

          • C:\Windows\SysWOW64\nethtsrv.exe

            Filesize

            176KB

            MD5

            03a737b255dfce7fc1f84b8ae3ca56ee

            SHA1

            563663afaba3b3ee3b3c3e7d22bb6a213bff334e

            SHA256

            61e3ee020f2eac006980dddc76a2e1227b8f3229aea5d199cf72d2a8ef03940b

            SHA512

            2f042c5b0b31d6685bb63d0931aba934705d66b309a5dc6c350cdedf090445a9e315c6ba210e818ad496b7bb5dd2a4642caf8a87c3b2cc83b167a9010c796fbf

          • C:\Windows\SysWOW64\nethtsrv.exe

            Filesize

            176KB

            MD5

            03a737b255dfce7fc1f84b8ae3ca56ee

            SHA1

            563663afaba3b3ee3b3c3e7d22bb6a213bff334e

            SHA256

            61e3ee020f2eac006980dddc76a2e1227b8f3229aea5d199cf72d2a8ef03940b

            SHA512

            2f042c5b0b31d6685bb63d0931aba934705d66b309a5dc6c350cdedf090445a9e315c6ba210e818ad496b7bb5dd2a4642caf8a87c3b2cc83b167a9010c796fbf

          • C:\Windows\SysWOW64\nethtsrv.exe

            Filesize

            176KB

            MD5

            03a737b255dfce7fc1f84b8ae3ca56ee

            SHA1

            563663afaba3b3ee3b3c3e7d22bb6a213bff334e

            SHA256

            61e3ee020f2eac006980dddc76a2e1227b8f3229aea5d199cf72d2a8ef03940b

            SHA512

            2f042c5b0b31d6685bb63d0931aba934705d66b309a5dc6c350cdedf090445a9e315c6ba210e818ad496b7bb5dd2a4642caf8a87c3b2cc83b167a9010c796fbf

          • C:\Windows\SysWOW64\netupdsrv.exe

            Filesize

            159KB

            MD5

            5e1843c4566c305ecb3b3aec80d48390

            SHA1

            3fd86b20eeedbbc862c688b293f42b33cb7a9974

            SHA256

            acfed7fd455544e34392fe42bc986ce9c577e1e5f7ab7f29f8f359cd0226c04b

            SHA512

            68562bfeda61ecfac95c29e15753da1ba17dc04a2016e32b7208d66bcc5aa222ae17153a1045ea2e4488ee5c76fb2443213790ee1bbf1fb949c95e47886bbce8

          • C:\Windows\SysWOW64\netupdsrv.exe

            Filesize

            159KB

            MD5

            5e1843c4566c305ecb3b3aec80d48390

            SHA1

            3fd86b20eeedbbc862c688b293f42b33cb7a9974

            SHA256

            acfed7fd455544e34392fe42bc986ce9c577e1e5f7ab7f29f8f359cd0226c04b

            SHA512

            68562bfeda61ecfac95c29e15753da1ba17dc04a2016e32b7208d66bcc5aa222ae17153a1045ea2e4488ee5c76fb2443213790ee1bbf1fb949c95e47886bbce8

          • C:\Windows\SysWOW64\netupdsrv.exe

            Filesize

            159KB

            MD5

            5e1843c4566c305ecb3b3aec80d48390

            SHA1

            3fd86b20eeedbbc862c688b293f42b33cb7a9974

            SHA256

            acfed7fd455544e34392fe42bc986ce9c577e1e5f7ab7f29f8f359cd0226c04b

            SHA512

            68562bfeda61ecfac95c29e15753da1ba17dc04a2016e32b7208d66bcc5aa222ae17153a1045ea2e4488ee5c76fb2443213790ee1bbf1fb949c95e47886bbce8

          • memory/4968-132-0x0000000000360000-0x00000000007BE000-memory.dmp

            Filesize

            4.4MB

          • memory/4968-168-0x0000000000360000-0x00000000007BE000-memory.dmp

            Filesize

            4.4MB