Analysis

  • max time kernel
    164s
  • max time network
    191s
  • 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 10:24

General

  • Target

    6b3241bfc392b74f8ec767c9481dd813bf4b9d38dd6ec9c11eb4d3000baac168.exe

  • Size

    602KB

  • MD5

    6c98ee37090de027c2715882c6054efc

  • SHA1

    d2b2add11920185ff16f86468bb8fc661d2d5535

  • SHA256

    6b3241bfc392b74f8ec767c9481dd813bf4b9d38dd6ec9c11eb4d3000baac168

  • SHA512

    ce280be61a4fbddc650a9430643f6fa53be1c18702c8e33851d42a15fe326f54efbaf6ebde6360b16df2d02797bacf6a77be0c5dee2438024881bee01384ba23

  • SSDEEP

    12288:rIny5DYTWmH90ZuwlLH3iWvfPZCGULIU6Gpylj:TUTWOJwlDSW3PZVU6GOj

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\6b3241bfc392b74f8ec767c9481dd813bf4b9d38dd6ec9c11eb4d3000baac168.exe
    "C:\Users\Admin\AppData\Local\Temp\6b3241bfc392b74f8ec767c9481dd813bf4b9d38dd6ec9c11eb4d3000baac168.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:2944
    • C:\Windows\SysWOW64\net.exe
      net stop nethttpservice
      2⤵
      • Suspicious use of WriteProcessMemory
      PID:3476
      • C:\Windows\SysWOW64\net1.exe
        C:\Windows\system32\net1 stop nethttpservice
        3⤵
          PID:224
      • C:\Windows\SysWOW64\net.exe
        net stop serviceupdater
        2⤵
        • Suspicious use of WriteProcessMemory
        PID:1676
        • C:\Windows\SysWOW64\net1.exe
          C:\Windows\system32\net1 stop serviceupdater
          3⤵
            PID:3608
        • C:\Windows\SysWOW64\installd.exe
          "C:\Windows\system32\installd.exe" nethfdrv
          2⤵
          • Executes dropped EXE
          • Loads dropped DLL
          PID:1264
        • C:\Windows\SysWOW64\nethtsrv.exe
          "C:\Windows\system32\nethtsrv.exe" -nfdi
          2⤵
          • Executes dropped EXE
          • Loads dropped DLL
          PID:1652
        • C:\Windows\SysWOW64\netupdsrv.exe
          "C:\Windows\system32\netupdsrv.exe" -nfdi
          2⤵
          • Executes dropped EXE
          PID:4236
        • C:\Windows\SysWOW64\net.exe
          net start nethttpservice
          2⤵
          • Suspicious use of WriteProcessMemory
          PID:4372
          • C:\Windows\SysWOW64\net1.exe
            C:\Windows\system32\net1 start nethttpservice
            3⤵
              PID:3692
          • C:\Windows\SysWOW64\net.exe
            net start serviceupdater
            2⤵
            • Suspicious use of WriteProcessMemory
            PID:3672
            • C:\Windows\SysWOW64\net1.exe
              C:\Windows\system32\net1 start serviceupdater
              3⤵
                PID:4232
          • 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:3488
          • C:\Windows\SysWOW64\netupdsrv.exe
            C:\Windows\SysWOW64\netupdsrv.exe
            1⤵
            • Executes dropped EXE
            PID:3392

          Network

          MITRE ATT&CK Enterprise v6

          Replay Monitor

          Loading Replay Monitor...

          Downloads

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

            Filesize

            11KB

            MD5

            c17103ae9072a06da581dec998343fc1

            SHA1

            b72148c6bdfaada8b8c3f950e610ee7cf1da1f8d

            SHA256

            dc58d8ad81cacb0c1ed72e33bff8f23ea40b5252b5bb55d393a0903e6819ae2f

            SHA512

            d32a71aaef18e993f28096d536e41c4d016850721b31171513ce28bbd805a54fd290b7c3e9d935f72e676a1acfb4f0dcc89d95040a0dd29f2b6975855c18986f

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

            Filesize

            6KB

            MD5

            acc2b699edfea5bf5aae45aba3a41e96

            SHA1

            d2accf4d494e43ceb2cff69abe4dd17147d29cc2

            SHA256

            168a974eaa3f588d759db3f47c1a9fdc3494ba1fa1a73a84e5e3b2a4d58abd7e

            SHA512

            e29ea10ada98c71a18273b04f44f385b120d4e8473e441ce5748cfa44a23648814f2656f429b85440157988c88de776c6ac008dc38bf09cbb746c230a46c69fe

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

            Filesize

            6KB

            MD5

            acc2b699edfea5bf5aae45aba3a41e96

            SHA1

            d2accf4d494e43ceb2cff69abe4dd17147d29cc2

            SHA256

            168a974eaa3f588d759db3f47c1a9fdc3494ba1fa1a73a84e5e3b2a4d58abd7e

            SHA512

            e29ea10ada98c71a18273b04f44f385b120d4e8473e441ce5748cfa44a23648814f2656f429b85440157988c88de776c6ac008dc38bf09cbb746c230a46c69fe

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

            Filesize

            6KB

            MD5

            acc2b699edfea5bf5aae45aba3a41e96

            SHA1

            d2accf4d494e43ceb2cff69abe4dd17147d29cc2

            SHA256

            168a974eaa3f588d759db3f47c1a9fdc3494ba1fa1a73a84e5e3b2a4d58abd7e

            SHA512

            e29ea10ada98c71a18273b04f44f385b120d4e8473e441ce5748cfa44a23648814f2656f429b85440157988c88de776c6ac008dc38bf09cbb746c230a46c69fe

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

            Filesize

            6KB

            MD5

            acc2b699edfea5bf5aae45aba3a41e96

            SHA1

            d2accf4d494e43ceb2cff69abe4dd17147d29cc2

            SHA256

            168a974eaa3f588d759db3f47c1a9fdc3494ba1fa1a73a84e5e3b2a4d58abd7e

            SHA512

            e29ea10ada98c71a18273b04f44f385b120d4e8473e441ce5748cfa44a23648814f2656f429b85440157988c88de776c6ac008dc38bf09cbb746c230a46c69fe

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

            Filesize

            6KB

            MD5

            acc2b699edfea5bf5aae45aba3a41e96

            SHA1

            d2accf4d494e43ceb2cff69abe4dd17147d29cc2

            SHA256

            168a974eaa3f588d759db3f47c1a9fdc3494ba1fa1a73a84e5e3b2a4d58abd7e

            SHA512

            e29ea10ada98c71a18273b04f44f385b120d4e8473e441ce5748cfa44a23648814f2656f429b85440157988c88de776c6ac008dc38bf09cbb746c230a46c69fe

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

            Filesize

            6KB

            MD5

            acc2b699edfea5bf5aae45aba3a41e96

            SHA1

            d2accf4d494e43ceb2cff69abe4dd17147d29cc2

            SHA256

            168a974eaa3f588d759db3f47c1a9fdc3494ba1fa1a73a84e5e3b2a4d58abd7e

            SHA512

            e29ea10ada98c71a18273b04f44f385b120d4e8473e441ce5748cfa44a23648814f2656f429b85440157988c88de776c6ac008dc38bf09cbb746c230a46c69fe

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

            Filesize

            6KB

            MD5

            acc2b699edfea5bf5aae45aba3a41e96

            SHA1

            d2accf4d494e43ceb2cff69abe4dd17147d29cc2

            SHA256

            168a974eaa3f588d759db3f47c1a9fdc3494ba1fa1a73a84e5e3b2a4d58abd7e

            SHA512

            e29ea10ada98c71a18273b04f44f385b120d4e8473e441ce5748cfa44a23648814f2656f429b85440157988c88de776c6ac008dc38bf09cbb746c230a46c69fe

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

            Filesize

            6KB

            MD5

            acc2b699edfea5bf5aae45aba3a41e96

            SHA1

            d2accf4d494e43ceb2cff69abe4dd17147d29cc2

            SHA256

            168a974eaa3f588d759db3f47c1a9fdc3494ba1fa1a73a84e5e3b2a4d58abd7e

            SHA512

            e29ea10ada98c71a18273b04f44f385b120d4e8473e441ce5748cfa44a23648814f2656f429b85440157988c88de776c6ac008dc38bf09cbb746c230a46c69fe

          • C:\Windows\SysWOW64\hfnapi.dll

            Filesize

            106KB

            MD5

            e69dde256d48a9655f024a7ad33e9528

            SHA1

            d7f728ebc06dba90ec5ba1bfd0061033ce128aff

            SHA256

            0771178ebb091d43fea5f97fb38e3a40be9ba072e2401a88118b85bf2ac379b6

            SHA512

            79941712858f9cecd24193b428e545049b550f878c8b2d097f55ddfdc8d8eef5ea592595f2986cff444a1b90d13c085dcf31b648999999bf8bcd69d9b036bdc5

          • C:\Windows\SysWOW64\hfnapi.dll

            Filesize

            106KB

            MD5

            e69dde256d48a9655f024a7ad33e9528

            SHA1

            d7f728ebc06dba90ec5ba1bfd0061033ce128aff

            SHA256

            0771178ebb091d43fea5f97fb38e3a40be9ba072e2401a88118b85bf2ac379b6

            SHA512

            79941712858f9cecd24193b428e545049b550f878c8b2d097f55ddfdc8d8eef5ea592595f2986cff444a1b90d13c085dcf31b648999999bf8bcd69d9b036bdc5

          • C:\Windows\SysWOW64\hfnapi.dll

            Filesize

            106KB

            MD5

            e69dde256d48a9655f024a7ad33e9528

            SHA1

            d7f728ebc06dba90ec5ba1bfd0061033ce128aff

            SHA256

            0771178ebb091d43fea5f97fb38e3a40be9ba072e2401a88118b85bf2ac379b6

            SHA512

            79941712858f9cecd24193b428e545049b550f878c8b2d097f55ddfdc8d8eef5ea592595f2986cff444a1b90d13c085dcf31b648999999bf8bcd69d9b036bdc5

          • C:\Windows\SysWOW64\hfnapi.dll

            Filesize

            106KB

            MD5

            e69dde256d48a9655f024a7ad33e9528

            SHA1

            d7f728ebc06dba90ec5ba1bfd0061033ce128aff

            SHA256

            0771178ebb091d43fea5f97fb38e3a40be9ba072e2401a88118b85bf2ac379b6

            SHA512

            79941712858f9cecd24193b428e545049b550f878c8b2d097f55ddfdc8d8eef5ea592595f2986cff444a1b90d13c085dcf31b648999999bf8bcd69d9b036bdc5

          • C:\Windows\SysWOW64\hfpapi.dll

            Filesize

            241KB

            MD5

            b7cb295623bd88e429ae063cc83718f1

            SHA1

            0acbe4e4652ee50d894e2b48ed8081c7cdb55f0c

            SHA256

            a7a0cb00b6e9f50ed7781b6fe8e77e7db1453fbdd7aac4f495ee781d83f8bc8b

            SHA512

            0cfdfc9eb0eaec82501a101eebf4997097b199279c4dd6baa29dcd75b0b57a98ce4b06d879d9e4a34b7dac5104371b0a7273565dbc142a78965032f72d88189b

          • C:\Windows\SysWOW64\hfpapi.dll

            Filesize

            241KB

            MD5

            b7cb295623bd88e429ae063cc83718f1

            SHA1

            0acbe4e4652ee50d894e2b48ed8081c7cdb55f0c

            SHA256

            a7a0cb00b6e9f50ed7781b6fe8e77e7db1453fbdd7aac4f495ee781d83f8bc8b

            SHA512

            0cfdfc9eb0eaec82501a101eebf4997097b199279c4dd6baa29dcd75b0b57a98ce4b06d879d9e4a34b7dac5104371b0a7273565dbc142a78965032f72d88189b

          • C:\Windows\SysWOW64\hfpapi.dll

            Filesize

            241KB

            MD5

            b7cb295623bd88e429ae063cc83718f1

            SHA1

            0acbe4e4652ee50d894e2b48ed8081c7cdb55f0c

            SHA256

            a7a0cb00b6e9f50ed7781b6fe8e77e7db1453fbdd7aac4f495ee781d83f8bc8b

            SHA512

            0cfdfc9eb0eaec82501a101eebf4997097b199279c4dd6baa29dcd75b0b57a98ce4b06d879d9e4a34b7dac5104371b0a7273565dbc142a78965032f72d88189b

          • C:\Windows\SysWOW64\installd.exe

            Filesize

            108KB

            MD5

            c572a1a805d927ba0cbcd35e7c3a6536

            SHA1

            e3bc36cc35e790ceb9563206349f4e51858180d5

            SHA256

            6d0854b312542d09bd1ae57fc972e001b92f786c4edbfd4157b911fc6ca01c58

            SHA512

            df4a0a47a3012390fac73d883e187811b19c691fd1f5d477257afb83231bb4d80df8f3b38ac5e3469142cc13fb34eb6aafb3d89ac55b43fdba290d1e9d730e91

          • C:\Windows\SysWOW64\installd.exe

            Filesize

            108KB

            MD5

            c572a1a805d927ba0cbcd35e7c3a6536

            SHA1

            e3bc36cc35e790ceb9563206349f4e51858180d5

            SHA256

            6d0854b312542d09bd1ae57fc972e001b92f786c4edbfd4157b911fc6ca01c58

            SHA512

            df4a0a47a3012390fac73d883e187811b19c691fd1f5d477257afb83231bb4d80df8f3b38ac5e3469142cc13fb34eb6aafb3d89ac55b43fdba290d1e9d730e91

          • C:\Windows\SysWOW64\nethtsrv.exe

            Filesize

            176KB

            MD5

            8a581f4e773e028abd741081b6147b4e

            SHA1

            9aed86dfa5d056ba63f9196ced6bd55549ed8383

            SHA256

            c78e7280b26dc2133190e483c26ccc01c01e004ae2f0fc1c3850a9cc48c28927

            SHA512

            9234acd5e11f0482bc7f0c1266d3cfe975ca18d9653b3ab098a43f647ed77168266ec05bf727af0e235ed533b780228edf6f69f729d8bc8f0ffcd7b423ced248

          • C:\Windows\SysWOW64\nethtsrv.exe

            Filesize

            176KB

            MD5

            8a581f4e773e028abd741081b6147b4e

            SHA1

            9aed86dfa5d056ba63f9196ced6bd55549ed8383

            SHA256

            c78e7280b26dc2133190e483c26ccc01c01e004ae2f0fc1c3850a9cc48c28927

            SHA512

            9234acd5e11f0482bc7f0c1266d3cfe975ca18d9653b3ab098a43f647ed77168266ec05bf727af0e235ed533b780228edf6f69f729d8bc8f0ffcd7b423ced248

          • C:\Windows\SysWOW64\nethtsrv.exe

            Filesize

            176KB

            MD5

            8a581f4e773e028abd741081b6147b4e

            SHA1

            9aed86dfa5d056ba63f9196ced6bd55549ed8383

            SHA256

            c78e7280b26dc2133190e483c26ccc01c01e004ae2f0fc1c3850a9cc48c28927

            SHA512

            9234acd5e11f0482bc7f0c1266d3cfe975ca18d9653b3ab098a43f647ed77168266ec05bf727af0e235ed533b780228edf6f69f729d8bc8f0ffcd7b423ced248

          • C:\Windows\SysWOW64\netupdsrv.exe

            Filesize

            158KB

            MD5

            ca9bedd66b5f7fc385e99627301f8b72

            SHA1

            1a1469060d2b9b7003f1760c1a2fffb619863fe8

            SHA256

            efc5d4e537f12dd5295d1c745793f7fbc8824bd5e62e42e4b1be11f901b11b12

            SHA512

            c250080fa5bd58d46e4286b6590d4d3fbfc7ae6366ce58727a39f0c80378786643036980ab2e651d294cb61c87ceeb804f195b985d21cee77a9705d69135dfd2

          • C:\Windows\SysWOW64\netupdsrv.exe

            Filesize

            158KB

            MD5

            ca9bedd66b5f7fc385e99627301f8b72

            SHA1

            1a1469060d2b9b7003f1760c1a2fffb619863fe8

            SHA256

            efc5d4e537f12dd5295d1c745793f7fbc8824bd5e62e42e4b1be11f901b11b12

            SHA512

            c250080fa5bd58d46e4286b6590d4d3fbfc7ae6366ce58727a39f0c80378786643036980ab2e651d294cb61c87ceeb804f195b985d21cee77a9705d69135dfd2

          • C:\Windows\SysWOW64\netupdsrv.exe

            Filesize

            158KB

            MD5

            ca9bedd66b5f7fc385e99627301f8b72

            SHA1

            1a1469060d2b9b7003f1760c1a2fffb619863fe8

            SHA256

            efc5d4e537f12dd5295d1c745793f7fbc8824bd5e62e42e4b1be11f901b11b12

            SHA512

            c250080fa5bd58d46e4286b6590d4d3fbfc7ae6366ce58727a39f0c80378786643036980ab2e651d294cb61c87ceeb804f195b985d21cee77a9705d69135dfd2

          • memory/224-136-0x0000000000000000-mapping.dmp

          • memory/1264-142-0x0000000000000000-mapping.dmp

          • memory/1652-147-0x0000000000000000-mapping.dmp

          • memory/1676-140-0x0000000000000000-mapping.dmp

          • memory/2944-137-0x0000000000360000-0x00000000007BE000-memory.dmp

            Filesize

            4.4MB

          • memory/2944-168-0x0000000000360000-0x00000000007BE000-memory.dmp

            Filesize

            4.4MB

          • memory/3476-135-0x0000000000000000-mapping.dmp

          • memory/3608-141-0x0000000000000000-mapping.dmp

          • memory/3672-165-0x0000000000000000-mapping.dmp

          • memory/3692-159-0x0000000000000000-mapping.dmp

          • memory/4232-166-0x0000000000000000-mapping.dmp

          • memory/4236-153-0x0000000000000000-mapping.dmp

          • memory/4372-158-0x0000000000000000-mapping.dmp