Analysis

  • max time kernel
    146s
  • max time network
    190s
  • 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 10:08

General

  • Target

    f0cbbdac43a26e19590a3873856a222e24c8fb7d3f635a7e74a21a19a8255ab5.exe

  • Size

    602KB

  • MD5

    cbeabe8c79fc1d2c9642c15d5c372174

  • SHA1

    6c4ae8b3b8b51008a29554063b940cd60191a021

  • SHA256

    f0cbbdac43a26e19590a3873856a222e24c8fb7d3f635a7e74a21a19a8255ab5

  • SHA512

    8626ef90ceda9318701dc59de58c41cdffa7cd270a772b9181b4c7878aa13f8c9b2678ae3cb19555ec63da020843098b1e9153e6f8c99a12a5eb32224f3fe0e1

  • SSDEEP

    12288:NIny5DYTbPFXbr2G08cX3bAKOP4hA9hcDD:ZUTbNrr68+LDOiE

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\f0cbbdac43a26e19590a3873856a222e24c8fb7d3f635a7e74a21a19a8255ab5.exe
    "C:\Users\Admin\AppData\Local\Temp\f0cbbdac43a26e19590a3873856a222e24c8fb7d3f635a7e74a21a19a8255ab5.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:224
    • C:\Windows\SysWOW64\net.exe
      net stop nethttpservice
      2⤵
      • Suspicious use of WriteProcessMemory
      PID:4740
      • C:\Windows\SysWOW64\net1.exe
        C:\Windows\system32\net1 stop nethttpservice
        3⤵
          PID:5080
      • C:\Windows\SysWOW64\net.exe
        net stop serviceupdater
        2⤵
        • Suspicious use of WriteProcessMemory
        PID:5076
        • C:\Windows\SysWOW64\net1.exe
          C:\Windows\system32\net1 stop serviceupdater
          3⤵
            PID:1828
        • C:\Windows\SysWOW64\installd.exe
          "C:\Windows\system32\installd.exe" nethfdrv
          2⤵
          • Executes dropped EXE
          • Loads dropped DLL
          PID:3372
        • C:\Windows\SysWOW64\nethtsrv.exe
          "C:\Windows\system32\nethtsrv.exe" -nfdi
          2⤵
          • Executes dropped EXE
          • Loads dropped DLL
          PID:1092
        • C:\Windows\SysWOW64\netupdsrv.exe
          "C:\Windows\system32\netupdsrv.exe" -nfdi
          2⤵
          • Executes dropped EXE
          PID:3748
        • C:\Windows\SysWOW64\net.exe
          net start nethttpservice
          2⤵
          • Suspicious use of WriteProcessMemory
          PID:5008
          • C:\Windows\SysWOW64\net1.exe
            C:\Windows\system32\net1 start nethttpservice
            3⤵
              PID:4588
          • C:\Windows\SysWOW64\net.exe
            net start serviceupdater
            2⤵
            • Suspicious use of WriteProcessMemory
            PID:4932
            • C:\Windows\SysWOW64\net1.exe
              C:\Windows\system32\net1 start serviceupdater
              3⤵
                PID:4636
          • 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:3788
          • C:\Windows\SysWOW64\netupdsrv.exe
            C:\Windows\SysWOW64\netupdsrv.exe
            1⤵
            • Executes dropped EXE
            PID:4688

          Network

          MITRE ATT&CK Enterprise v6

          Replay Monitor

          Loading Replay Monitor...

          Downloads

          • C:\Users\Admin\AppData\Local\Temp\nsr3D78.tmp\System.dll

            Filesize

            11KB

            MD5

            c17103ae9072a06da581dec998343fc1

            SHA1

            b72148c6bdfaada8b8c3f950e610ee7cf1da1f8d

            SHA256

            dc58d8ad81cacb0c1ed72e33bff8f23ea40b5252b5bb55d393a0903e6819ae2f

            SHA512

            d32a71aaef18e993f28096d536e41c4d016850721b31171513ce28bbd805a54fd290b7c3e9d935f72e676a1acfb4f0dcc89d95040a0dd29f2b6975855c18986f

          • C:\Users\Admin\AppData\Local\Temp\nsr3D78.tmp\nsExec.dll

            Filesize

            6KB

            MD5

            acc2b699edfea5bf5aae45aba3a41e96

            SHA1

            d2accf4d494e43ceb2cff69abe4dd17147d29cc2

            SHA256

            168a974eaa3f588d759db3f47c1a9fdc3494ba1fa1a73a84e5e3b2a4d58abd7e

            SHA512

            e29ea10ada98c71a18273b04f44f385b120d4e8473e441ce5748cfa44a23648814f2656f429b85440157988c88de776c6ac008dc38bf09cbb746c230a46c69fe

          • C:\Users\Admin\AppData\Local\Temp\nsr3D78.tmp\nsExec.dll

            Filesize

            6KB

            MD5

            acc2b699edfea5bf5aae45aba3a41e96

            SHA1

            d2accf4d494e43ceb2cff69abe4dd17147d29cc2

            SHA256

            168a974eaa3f588d759db3f47c1a9fdc3494ba1fa1a73a84e5e3b2a4d58abd7e

            SHA512

            e29ea10ada98c71a18273b04f44f385b120d4e8473e441ce5748cfa44a23648814f2656f429b85440157988c88de776c6ac008dc38bf09cbb746c230a46c69fe

          • C:\Users\Admin\AppData\Local\Temp\nsr3D78.tmp\nsExec.dll

            Filesize

            6KB

            MD5

            acc2b699edfea5bf5aae45aba3a41e96

            SHA1

            d2accf4d494e43ceb2cff69abe4dd17147d29cc2

            SHA256

            168a974eaa3f588d759db3f47c1a9fdc3494ba1fa1a73a84e5e3b2a4d58abd7e

            SHA512

            e29ea10ada98c71a18273b04f44f385b120d4e8473e441ce5748cfa44a23648814f2656f429b85440157988c88de776c6ac008dc38bf09cbb746c230a46c69fe

          • C:\Users\Admin\AppData\Local\Temp\nsr3D78.tmp\nsExec.dll

            Filesize

            6KB

            MD5

            acc2b699edfea5bf5aae45aba3a41e96

            SHA1

            d2accf4d494e43ceb2cff69abe4dd17147d29cc2

            SHA256

            168a974eaa3f588d759db3f47c1a9fdc3494ba1fa1a73a84e5e3b2a4d58abd7e

            SHA512

            e29ea10ada98c71a18273b04f44f385b120d4e8473e441ce5748cfa44a23648814f2656f429b85440157988c88de776c6ac008dc38bf09cbb746c230a46c69fe

          • C:\Users\Admin\AppData\Local\Temp\nsr3D78.tmp\nsExec.dll

            Filesize

            6KB

            MD5

            acc2b699edfea5bf5aae45aba3a41e96

            SHA1

            d2accf4d494e43ceb2cff69abe4dd17147d29cc2

            SHA256

            168a974eaa3f588d759db3f47c1a9fdc3494ba1fa1a73a84e5e3b2a4d58abd7e

            SHA512

            e29ea10ada98c71a18273b04f44f385b120d4e8473e441ce5748cfa44a23648814f2656f429b85440157988c88de776c6ac008dc38bf09cbb746c230a46c69fe

          • C:\Users\Admin\AppData\Local\Temp\nsr3D78.tmp\nsExec.dll

            Filesize

            6KB

            MD5

            acc2b699edfea5bf5aae45aba3a41e96

            SHA1

            d2accf4d494e43ceb2cff69abe4dd17147d29cc2

            SHA256

            168a974eaa3f588d759db3f47c1a9fdc3494ba1fa1a73a84e5e3b2a4d58abd7e

            SHA512

            e29ea10ada98c71a18273b04f44f385b120d4e8473e441ce5748cfa44a23648814f2656f429b85440157988c88de776c6ac008dc38bf09cbb746c230a46c69fe

          • C:\Users\Admin\AppData\Local\Temp\nsr3D78.tmp\nsExec.dll

            Filesize

            6KB

            MD5

            acc2b699edfea5bf5aae45aba3a41e96

            SHA1

            d2accf4d494e43ceb2cff69abe4dd17147d29cc2

            SHA256

            168a974eaa3f588d759db3f47c1a9fdc3494ba1fa1a73a84e5e3b2a4d58abd7e

            SHA512

            e29ea10ada98c71a18273b04f44f385b120d4e8473e441ce5748cfa44a23648814f2656f429b85440157988c88de776c6ac008dc38bf09cbb746c230a46c69fe

          • C:\Users\Admin\AppData\Local\Temp\nsr3D78.tmp\nsExec.dll

            Filesize

            6KB

            MD5

            acc2b699edfea5bf5aae45aba3a41e96

            SHA1

            d2accf4d494e43ceb2cff69abe4dd17147d29cc2

            SHA256

            168a974eaa3f588d759db3f47c1a9fdc3494ba1fa1a73a84e5e3b2a4d58abd7e

            SHA512

            e29ea10ada98c71a18273b04f44f385b120d4e8473e441ce5748cfa44a23648814f2656f429b85440157988c88de776c6ac008dc38bf09cbb746c230a46c69fe

          • C:\Windows\SysWOW64\hfnapi.dll

            Filesize

            106KB

            MD5

            cd72912af0a2867929721102d5137cbe

            SHA1

            5ab3378bf53409c7f1c43c26b4f77b5df4d0ca63

            SHA256

            104a7f332afc11f236137403e39d42b6f2d3336f17c488c7938036a3933ed9c9

            SHA512

            2577de1b6063db6dbb70f9334c89a7f0505f1f29c81af84ffc931ca35e757a4112c79d76c202be76c4c8b82be2c7308a2869b111186a78f14310c8bad6f3b709

          • C:\Windows\SysWOW64\hfnapi.dll

            Filesize

            106KB

            MD5

            cd72912af0a2867929721102d5137cbe

            SHA1

            5ab3378bf53409c7f1c43c26b4f77b5df4d0ca63

            SHA256

            104a7f332afc11f236137403e39d42b6f2d3336f17c488c7938036a3933ed9c9

            SHA512

            2577de1b6063db6dbb70f9334c89a7f0505f1f29c81af84ffc931ca35e757a4112c79d76c202be76c4c8b82be2c7308a2869b111186a78f14310c8bad6f3b709

          • C:\Windows\SysWOW64\hfnapi.dll

            Filesize

            106KB

            MD5

            cd72912af0a2867929721102d5137cbe

            SHA1

            5ab3378bf53409c7f1c43c26b4f77b5df4d0ca63

            SHA256

            104a7f332afc11f236137403e39d42b6f2d3336f17c488c7938036a3933ed9c9

            SHA512

            2577de1b6063db6dbb70f9334c89a7f0505f1f29c81af84ffc931ca35e757a4112c79d76c202be76c4c8b82be2c7308a2869b111186a78f14310c8bad6f3b709

          • C:\Windows\SysWOW64\hfnapi.dll

            Filesize

            106KB

            MD5

            cd72912af0a2867929721102d5137cbe

            SHA1

            5ab3378bf53409c7f1c43c26b4f77b5df4d0ca63

            SHA256

            104a7f332afc11f236137403e39d42b6f2d3336f17c488c7938036a3933ed9c9

            SHA512

            2577de1b6063db6dbb70f9334c89a7f0505f1f29c81af84ffc931ca35e757a4112c79d76c202be76c4c8b82be2c7308a2869b111186a78f14310c8bad6f3b709

          • C:\Windows\SysWOW64\hfpapi.dll

            Filesize

            241KB

            MD5

            f041bd09d2ba3509aef0fe50db28f493

            SHA1

            30921480465a1c323322779fe767fd2ec51db1e6

            SHA256

            518c35ff2d49a312bfb52746e3f95ca1a1c65d72d1c300403095cdf5911a0520

            SHA512

            c6cc231fed33c460c05dd5e9380e7290d07858317572028573fefb2e9add0a7248a2c65ea0dc6c79df470635fe8f6cd22a44e614badf6c93456579a990bdf293

          • C:\Windows\SysWOW64\hfpapi.dll

            Filesize

            241KB

            MD5

            f041bd09d2ba3509aef0fe50db28f493

            SHA1

            30921480465a1c323322779fe767fd2ec51db1e6

            SHA256

            518c35ff2d49a312bfb52746e3f95ca1a1c65d72d1c300403095cdf5911a0520

            SHA512

            c6cc231fed33c460c05dd5e9380e7290d07858317572028573fefb2e9add0a7248a2c65ea0dc6c79df470635fe8f6cd22a44e614badf6c93456579a990bdf293

          • C:\Windows\SysWOW64\hfpapi.dll

            Filesize

            241KB

            MD5

            f041bd09d2ba3509aef0fe50db28f493

            SHA1

            30921480465a1c323322779fe767fd2ec51db1e6

            SHA256

            518c35ff2d49a312bfb52746e3f95ca1a1c65d72d1c300403095cdf5911a0520

            SHA512

            c6cc231fed33c460c05dd5e9380e7290d07858317572028573fefb2e9add0a7248a2c65ea0dc6c79df470635fe8f6cd22a44e614badf6c93456579a990bdf293

          • C:\Windows\SysWOW64\installd.exe

            Filesize

            108KB

            MD5

            f4c8d1af9ec5fddfea3a07fe130da934

            SHA1

            ce7c622f731119c587eb0af44111016d10ea9c6d

            SHA256

            52808123465019fc1fa637439d7c1ab70e1115514b095c417656eb42554907b9

            SHA512

            3180fdfa1ba7152d75bc8838751f51645737580697f826200f0972413dd6181e3810f59427617597839daea727e9be1ddc9adc3a37445888049773fef4af03e8

          • C:\Windows\SysWOW64\installd.exe

            Filesize

            108KB

            MD5

            f4c8d1af9ec5fddfea3a07fe130da934

            SHA1

            ce7c622f731119c587eb0af44111016d10ea9c6d

            SHA256

            52808123465019fc1fa637439d7c1ab70e1115514b095c417656eb42554907b9

            SHA512

            3180fdfa1ba7152d75bc8838751f51645737580697f826200f0972413dd6181e3810f59427617597839daea727e9be1ddc9adc3a37445888049773fef4af03e8

          • C:\Windows\SysWOW64\nethtsrv.exe

            Filesize

            176KB

            MD5

            abfd06896e92e3e35a3a47037c25ef2d

            SHA1

            e34a7c14439f9998a5bf252b05c5f77738dc0b7e

            SHA256

            84de66dacb2f1f2bb6d1edb6477f079ed8a730526fe85ecd0d66a1adc769b7d5

            SHA512

            96ce6e9703e398f3ab3daa5d90fc982c436512cc0439f86361627db2488c069c229f0985449da48c09381e05afca954baabcdb430f9e4e9401fd37a6bce4e21e

          • C:\Windows\SysWOW64\nethtsrv.exe

            Filesize

            176KB

            MD5

            abfd06896e92e3e35a3a47037c25ef2d

            SHA1

            e34a7c14439f9998a5bf252b05c5f77738dc0b7e

            SHA256

            84de66dacb2f1f2bb6d1edb6477f079ed8a730526fe85ecd0d66a1adc769b7d5

            SHA512

            96ce6e9703e398f3ab3daa5d90fc982c436512cc0439f86361627db2488c069c229f0985449da48c09381e05afca954baabcdb430f9e4e9401fd37a6bce4e21e

          • C:\Windows\SysWOW64\nethtsrv.exe

            Filesize

            176KB

            MD5

            abfd06896e92e3e35a3a47037c25ef2d

            SHA1

            e34a7c14439f9998a5bf252b05c5f77738dc0b7e

            SHA256

            84de66dacb2f1f2bb6d1edb6477f079ed8a730526fe85ecd0d66a1adc769b7d5

            SHA512

            96ce6e9703e398f3ab3daa5d90fc982c436512cc0439f86361627db2488c069c229f0985449da48c09381e05afca954baabcdb430f9e4e9401fd37a6bce4e21e

          • C:\Windows\SysWOW64\netupdsrv.exe

            Filesize

            158KB

            MD5

            ff228e4650fb7c208b8dc195114a11ff

            SHA1

            9deb7c7f1a843f783c5ca768f3dc86ec5eb1aa49

            SHA256

            858dbf5360cfe1ab78ca1a39e95a3c0d03e86fa13514729b4b0e2ce5bedfc617

            SHA512

            bcd399f655ab484941e49b15da840b4a2e9c224249935e3c810a04d1582ed9913cfa687deb17cf9cd9e3aea1736c0de7a12aa04dd895d432e518ae09300bc34e

          • C:\Windows\SysWOW64\netupdsrv.exe

            Filesize

            158KB

            MD5

            ff228e4650fb7c208b8dc195114a11ff

            SHA1

            9deb7c7f1a843f783c5ca768f3dc86ec5eb1aa49

            SHA256

            858dbf5360cfe1ab78ca1a39e95a3c0d03e86fa13514729b4b0e2ce5bedfc617

            SHA512

            bcd399f655ab484941e49b15da840b4a2e9c224249935e3c810a04d1582ed9913cfa687deb17cf9cd9e3aea1736c0de7a12aa04dd895d432e518ae09300bc34e

          • C:\Windows\SysWOW64\netupdsrv.exe

            Filesize

            158KB

            MD5

            ff228e4650fb7c208b8dc195114a11ff

            SHA1

            9deb7c7f1a843f783c5ca768f3dc86ec5eb1aa49

            SHA256

            858dbf5360cfe1ab78ca1a39e95a3c0d03e86fa13514729b4b0e2ce5bedfc617

            SHA512

            bcd399f655ab484941e49b15da840b4a2e9c224249935e3c810a04d1582ed9913cfa687deb17cf9cd9e3aea1736c0de7a12aa04dd895d432e518ae09300bc34e

          • memory/224-168-0x0000000000360000-0x00000000007BE000-memory.dmp

            Filesize

            4.4MB

          • memory/224-132-0x0000000000360000-0x00000000007BE000-memory.dmp

            Filesize

            4.4MB

          • memory/1092-147-0x0000000000000000-mapping.dmp

          • memory/1828-141-0x0000000000000000-mapping.dmp

          • memory/3372-142-0x0000000000000000-mapping.dmp

          • memory/3748-153-0x0000000000000000-mapping.dmp

          • memory/4588-159-0x0000000000000000-mapping.dmp

          • memory/4636-166-0x0000000000000000-mapping.dmp

          • memory/4740-136-0x0000000000000000-mapping.dmp

          • memory/4932-165-0x0000000000000000-mapping.dmp

          • memory/5008-158-0x0000000000000000-mapping.dmp

          • memory/5076-140-0x0000000000000000-mapping.dmp

          • memory/5080-137-0x0000000000000000-mapping.dmp