Analysis

  • max time kernel
    46s
  • max time network
    34s
  • platform
    windows7_x64
  • resource
    win7-20221111-en
  • resource tags

    arch:x64arch:x86image:win7-20221111-enlocale:en-usos:windows7-x64system
  • submitted
    23-11-2022 10:13

General

  • Target

    be6ce5ed1ef447d31451e08fc640dcd24a1b223ba62ec273949129f7c0636d76.exe

  • Size

    603KB

  • MD5

    26d785c62fded2e692c298337026a400

  • SHA1

    b085b421f810e3209ee2c8f4f7b170ef3f7a8520

  • SHA256

    be6ce5ed1ef447d31451e08fc640dcd24a1b223ba62ec273949129f7c0636d76

  • SHA512

    1a2af3cd1e862179b804f42085acc94ad42a4e18fcd363143c0fcc97722a0defd249d7960622bbdde72481ff9e95337321bbbdb3799d286b5957aa2a5288f6dc

  • SSDEEP

    12288:FIny5DYTmILekdLs5w+IpXofBgDmyPBaEKzAw3y5O5:xUTmAeWLusd2mDNHKzAwC5

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\be6ce5ed1ef447d31451e08fc640dcd24a1b223ba62ec273949129f7c0636d76.exe
    "C:\Users\Admin\AppData\Local\Temp\be6ce5ed1ef447d31451e08fc640dcd24a1b223ba62ec273949129f7c0636d76.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:1760
    • C:\Windows\SysWOW64\net.exe
      net stop nethttpservice
      2⤵
      • Suspicious use of WriteProcessMemory
      PID:2000
      • 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:776
        • C:\Windows\SysWOW64\net1.exe
          C:\Windows\system32\net1 stop serviceupdater
          3⤵
            PID:588
        • C:\Windows\SysWOW64\installd.exe
          "C:\Windows\system32\installd.exe" nethfdrv
          2⤵
          • Executes dropped EXE
          • Loads dropped DLL
          PID:764
        • C:\Windows\SysWOW64\nethtsrv.exe
          "C:\Windows\system32\nethtsrv.exe" -nfdi
          2⤵
          • Executes dropped EXE
          • Loads dropped DLL
          PID:1032
        • C:\Windows\SysWOW64\netupdsrv.exe
          "C:\Windows\system32\netupdsrv.exe" -nfdi
          2⤵
          • Executes dropped EXE
          PID:1892
        • C:\Windows\SysWOW64\net.exe
          net start nethttpservice
          2⤵
          • Suspicious use of WriteProcessMemory
          PID:1884
          • C:\Windows\SysWOW64\net1.exe
            C:\Windows\system32\net1 start nethttpservice
            3⤵
              PID:580
          • C:\Windows\SysWOW64\net.exe
            net start serviceupdater
            2⤵
            • Suspicious use of WriteProcessMemory
            PID:1488
            • C:\Windows\SysWOW64\net1.exe
              C:\Windows\system32\net1 start serviceupdater
              3⤵
                PID:1560
          • C:\Windows\SysWOW64\nethtsrv.exe
            C:\Windows\SysWOW64\nethtsrv.exe
            1⤵
            • Executes dropped EXE
            • Loads dropped DLL
            • Suspicious use of AdjustPrivilegeToken
            PID:1900
          • C:\Windows\SysWOW64\netupdsrv.exe
            C:\Windows\SysWOW64\netupdsrv.exe
            1⤵
            • Executes dropped EXE
            PID:1744

          Network

          MITRE ATT&CK Enterprise v6

          Replay Monitor

          Loading Replay Monitor...

          Downloads

          • C:\Windows\SysWOW64\hfnapi.dll

            Filesize

            106KB

            MD5

            0b7c5e16fe430f5c9cdc964f00245e9c

            SHA1

            f97d35daf948da34d8eb48501d3a8f43602214da

            SHA256

            0636a2988b21a6cd4c3457f8999fede9c59790c6a7854ae7a99269bf8155abd4

            SHA512

            5bb78d639c36ac7dd600f580fbaeecc450a11ff466d62b9d7fc6ae38c1bdcef876f8647f918f13df38c51af062ac9b70bee51cd20b697fcb4270ed659d9f1d8e

          • C:\Windows\SysWOW64\hfpapi.dll

            Filesize

            244KB

            MD5

            022f85c3547ffb7bf95c8078e3aea381

            SHA1

            581c046914b54560fe1c9933ca27d5076a765f87

            SHA256

            734559474b6e9608403d7ea633ee89c2e560ae8248f326361a15efef5cfa635c

            SHA512

            e1c26a594161e13f7de05b51b493a602f0fcce1b243ede00961c5b1b8a5a9d403b0b66b36f617fff1d6d52f795db0848de0259e99ee158e3014c8c622206634c

          • C:\Windows\SysWOW64\installd.exe

            Filesize

            108KB

            MD5

            f41a109168da7397ccf75cd5a8add196

            SHA1

            3663ce884c811f38d5bdbe20e39fa42f618f16ce

            SHA256

            c5941452248d72f81eca9dc03cdbb3c5257fe3bb8aa76ab33125291630d8bc91

            SHA512

            10a932ca1973433916a7c9ff409a4368f68f9fe5d83739f19f8b8f2aa1c9dff4f33831be932ef726e323233e702a7dff37eea5399fdc594f65da241f0b608d62

          • C:\Windows\SysWOW64\nethtsrv.exe

            Filesize

            176KB

            MD5

            b0a85f4aebe3ee2c3ed4aaeb463306a4

            SHA1

            ebb1c2eda214e912bc58f40bc074c1d202b2bf62

            SHA256

            a963f10cfe331f5137db46ae69f5662378f95e9aa858050ae4b84037c4c99538

            SHA512

            45e0e8837c5cd4f42b4ebd16ed994637268cfaeb87d2efd089c2ecbb4db3f2fb4660b99a1ca2c31c20e5f8128721fec83c5686c01bd15f6912681fc9d35592a8

          • C:\Windows\SysWOW64\nethtsrv.exe

            Filesize

            176KB

            MD5

            b0a85f4aebe3ee2c3ed4aaeb463306a4

            SHA1

            ebb1c2eda214e912bc58f40bc074c1d202b2bf62

            SHA256

            a963f10cfe331f5137db46ae69f5662378f95e9aa858050ae4b84037c4c99538

            SHA512

            45e0e8837c5cd4f42b4ebd16ed994637268cfaeb87d2efd089c2ecbb4db3f2fb4660b99a1ca2c31c20e5f8128721fec83c5686c01bd15f6912681fc9d35592a8

          • C:\Windows\SysWOW64\netupdsrv.exe

            Filesize

            158KB

            MD5

            eac0027a018dd0880441260327d94093

            SHA1

            d69136e852ea58307704228a4ec25d7f8bc35b95

            SHA256

            a78ec30b5d1acb166a146ae8e019dfe4fe126ffe0f48d466ed0a1fe06f591a35

            SHA512

            b444d73eed3a9c77e006dbd2361a7c8899a07ab6c435a49d63ce5812f5664570a549aff65edd05986a0acc5f9050f27fbf8797fcceb8545550823578c4e41293

          • C:\Windows\SysWOW64\netupdsrv.exe

            Filesize

            158KB

            MD5

            eac0027a018dd0880441260327d94093

            SHA1

            d69136e852ea58307704228a4ec25d7f8bc35b95

            SHA256

            a78ec30b5d1acb166a146ae8e019dfe4fe126ffe0f48d466ed0a1fe06f591a35

            SHA512

            b444d73eed3a9c77e006dbd2361a7c8899a07ab6c435a49d63ce5812f5664570a549aff65edd05986a0acc5f9050f27fbf8797fcceb8545550823578c4e41293

          • \Users\Admin\AppData\Local\Temp\nseBB76.tmp\System.dll

            Filesize

            11KB

            MD5

            c17103ae9072a06da581dec998343fc1

            SHA1

            b72148c6bdfaada8b8c3f950e610ee7cf1da1f8d

            SHA256

            dc58d8ad81cacb0c1ed72e33bff8f23ea40b5252b5bb55d393a0903e6819ae2f

            SHA512

            d32a71aaef18e993f28096d536e41c4d016850721b31171513ce28bbd805a54fd290b7c3e9d935f72e676a1acfb4f0dcc89d95040a0dd29f2b6975855c18986f

          • \Users\Admin\AppData\Local\Temp\nseBB76.tmp\nsExec.dll

            Filesize

            6KB

            MD5

            acc2b699edfea5bf5aae45aba3a41e96

            SHA1

            d2accf4d494e43ceb2cff69abe4dd17147d29cc2

            SHA256

            168a974eaa3f588d759db3f47c1a9fdc3494ba1fa1a73a84e5e3b2a4d58abd7e

            SHA512

            e29ea10ada98c71a18273b04f44f385b120d4e8473e441ce5748cfa44a23648814f2656f429b85440157988c88de776c6ac008dc38bf09cbb746c230a46c69fe

          • \Users\Admin\AppData\Local\Temp\nseBB76.tmp\nsExec.dll

            Filesize

            6KB

            MD5

            acc2b699edfea5bf5aae45aba3a41e96

            SHA1

            d2accf4d494e43ceb2cff69abe4dd17147d29cc2

            SHA256

            168a974eaa3f588d759db3f47c1a9fdc3494ba1fa1a73a84e5e3b2a4d58abd7e

            SHA512

            e29ea10ada98c71a18273b04f44f385b120d4e8473e441ce5748cfa44a23648814f2656f429b85440157988c88de776c6ac008dc38bf09cbb746c230a46c69fe

          • \Users\Admin\AppData\Local\Temp\nseBB76.tmp\nsExec.dll

            Filesize

            6KB

            MD5

            acc2b699edfea5bf5aae45aba3a41e96

            SHA1

            d2accf4d494e43ceb2cff69abe4dd17147d29cc2

            SHA256

            168a974eaa3f588d759db3f47c1a9fdc3494ba1fa1a73a84e5e3b2a4d58abd7e

            SHA512

            e29ea10ada98c71a18273b04f44f385b120d4e8473e441ce5748cfa44a23648814f2656f429b85440157988c88de776c6ac008dc38bf09cbb746c230a46c69fe

          • \Users\Admin\AppData\Local\Temp\nseBB76.tmp\nsExec.dll

            Filesize

            6KB

            MD5

            acc2b699edfea5bf5aae45aba3a41e96

            SHA1

            d2accf4d494e43ceb2cff69abe4dd17147d29cc2

            SHA256

            168a974eaa3f588d759db3f47c1a9fdc3494ba1fa1a73a84e5e3b2a4d58abd7e

            SHA512

            e29ea10ada98c71a18273b04f44f385b120d4e8473e441ce5748cfa44a23648814f2656f429b85440157988c88de776c6ac008dc38bf09cbb746c230a46c69fe

          • \Windows\SysWOW64\hfnapi.dll

            Filesize

            106KB

            MD5

            0b7c5e16fe430f5c9cdc964f00245e9c

            SHA1

            f97d35daf948da34d8eb48501d3a8f43602214da

            SHA256

            0636a2988b21a6cd4c3457f8999fede9c59790c6a7854ae7a99269bf8155abd4

            SHA512

            5bb78d639c36ac7dd600f580fbaeecc450a11ff466d62b9d7fc6ae38c1bdcef876f8647f918f13df38c51af062ac9b70bee51cd20b697fcb4270ed659d9f1d8e

          • \Windows\SysWOW64\hfnapi.dll

            Filesize

            106KB

            MD5

            0b7c5e16fe430f5c9cdc964f00245e9c

            SHA1

            f97d35daf948da34d8eb48501d3a8f43602214da

            SHA256

            0636a2988b21a6cd4c3457f8999fede9c59790c6a7854ae7a99269bf8155abd4

            SHA512

            5bb78d639c36ac7dd600f580fbaeecc450a11ff466d62b9d7fc6ae38c1bdcef876f8647f918f13df38c51af062ac9b70bee51cd20b697fcb4270ed659d9f1d8e

          • \Windows\SysWOW64\hfnapi.dll

            Filesize

            106KB

            MD5

            0b7c5e16fe430f5c9cdc964f00245e9c

            SHA1

            f97d35daf948da34d8eb48501d3a8f43602214da

            SHA256

            0636a2988b21a6cd4c3457f8999fede9c59790c6a7854ae7a99269bf8155abd4

            SHA512

            5bb78d639c36ac7dd600f580fbaeecc450a11ff466d62b9d7fc6ae38c1bdcef876f8647f918f13df38c51af062ac9b70bee51cd20b697fcb4270ed659d9f1d8e

          • \Windows\SysWOW64\hfpapi.dll

            Filesize

            244KB

            MD5

            022f85c3547ffb7bf95c8078e3aea381

            SHA1

            581c046914b54560fe1c9933ca27d5076a765f87

            SHA256

            734559474b6e9608403d7ea633ee89c2e560ae8248f326361a15efef5cfa635c

            SHA512

            e1c26a594161e13f7de05b51b493a602f0fcce1b243ede00961c5b1b8a5a9d403b0b66b36f617fff1d6d52f795db0848de0259e99ee158e3014c8c622206634c

          • \Windows\SysWOW64\hfpapi.dll

            Filesize

            244KB

            MD5

            022f85c3547ffb7bf95c8078e3aea381

            SHA1

            581c046914b54560fe1c9933ca27d5076a765f87

            SHA256

            734559474b6e9608403d7ea633ee89c2e560ae8248f326361a15efef5cfa635c

            SHA512

            e1c26a594161e13f7de05b51b493a602f0fcce1b243ede00961c5b1b8a5a9d403b0b66b36f617fff1d6d52f795db0848de0259e99ee158e3014c8c622206634c

          • \Windows\SysWOW64\installd.exe

            Filesize

            108KB

            MD5

            f41a109168da7397ccf75cd5a8add196

            SHA1

            3663ce884c811f38d5bdbe20e39fa42f618f16ce

            SHA256

            c5941452248d72f81eca9dc03cdbb3c5257fe3bb8aa76ab33125291630d8bc91

            SHA512

            10a932ca1973433916a7c9ff409a4368f68f9fe5d83739f19f8b8f2aa1c9dff4f33831be932ef726e323233e702a7dff37eea5399fdc594f65da241f0b608d62

          • \Windows\SysWOW64\nethtsrv.exe

            Filesize

            176KB

            MD5

            b0a85f4aebe3ee2c3ed4aaeb463306a4

            SHA1

            ebb1c2eda214e912bc58f40bc074c1d202b2bf62

            SHA256

            a963f10cfe331f5137db46ae69f5662378f95e9aa858050ae4b84037c4c99538

            SHA512

            45e0e8837c5cd4f42b4ebd16ed994637268cfaeb87d2efd089c2ecbb4db3f2fb4660b99a1ca2c31c20e5f8128721fec83c5686c01bd15f6912681fc9d35592a8

          • \Windows\SysWOW64\netupdsrv.exe

            Filesize

            158KB

            MD5

            eac0027a018dd0880441260327d94093

            SHA1

            d69136e852ea58307704228a4ec25d7f8bc35b95

            SHA256

            a78ec30b5d1acb166a146ae8e019dfe4fe126ffe0f48d466ed0a1fe06f591a35

            SHA512

            b444d73eed3a9c77e006dbd2361a7c8899a07ab6c435a49d63ce5812f5664570a549aff65edd05986a0acc5f9050f27fbf8797fcceb8545550823578c4e41293

          • memory/560-58-0x0000000000000000-mapping.dmp

          • memory/580-82-0x0000000000000000-mapping.dmp

          • memory/588-62-0x0000000000000000-mapping.dmp

          • memory/764-64-0x0000000000000000-mapping.dmp

          • memory/776-61-0x0000000000000000-mapping.dmp

          • memory/1032-71-0x0000000000000000-mapping.dmp

          • memory/1488-87-0x0000000000000000-mapping.dmp

          • memory/1560-88-0x0000000000000000-mapping.dmp

          • memory/1760-54-0x0000000075531000-0x0000000075533000-memory.dmp

            Filesize

            8KB

          • memory/1760-59-0x0000000000360000-0x00000000007BE000-memory.dmp

            Filesize

            4.4MB

          • memory/1760-69-0x0000000000360000-0x00000000007BE000-memory.dmp

            Filesize

            4.4MB

          • memory/1760-91-0x0000000000360000-0x00000000007BE000-memory.dmp

            Filesize

            4.4MB

          • memory/1884-81-0x0000000000000000-mapping.dmp

          • memory/1892-77-0x0000000000000000-mapping.dmp

          • memory/2000-57-0x0000000000000000-mapping.dmp