Analysis

  • max time kernel
    38s
  • max time network
    43s
  • platform
    windows7_x64
  • resource
    win7-20220812-en
  • resource tags

    arch:x64arch:x86image:win7-20220812-enlocale:en-usos:windows7-x64system
  • submitted
    23-11-2022 10:23

General

  • Target

    730983a618ee200066d416b4009dcfb77d16ca8ccd3fb5cb986a8ced4b3925f4.exe

  • Size

    603KB

  • MD5

    36859625dfdd5953fb2e2820797c60fd

  • SHA1

    68d1772c90304cdea26f09228771337f5aa82576

  • SHA256

    730983a618ee200066d416b4009dcfb77d16ca8ccd3fb5cb986a8ced4b3925f4

  • SHA512

    6a9da4074454750504e5e0af5b8a7b86d9cc65735a4e9dd3eb8082f0da51ac672bceed18290b0736d3cd7e93beef05b1b832ce81dd9f577e5df3fc389fa6c4d8

  • SSDEEP

    12288:4Iny5DYTmI9NJL7ZSGUzwlD0rZ3Ai85Xqj3pbTaV0B4:WUTm6nZSGUz+Dgv8spTaV0B

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\730983a618ee200066d416b4009dcfb77d16ca8ccd3fb5cb986a8ced4b3925f4.exe
    "C:\Users\Admin\AppData\Local\Temp\730983a618ee200066d416b4009dcfb77d16ca8ccd3fb5cb986a8ced4b3925f4.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:1504
    • C:\Windows\SysWOW64\net.exe
      net stop nethttpservice
      2⤵
      • Suspicious use of WriteProcessMemory
      PID:1324
      • C:\Windows\SysWOW64\net1.exe
        C:\Windows\system32\net1 stop nethttpservice
        3⤵
          PID:1112
      • C:\Windows\SysWOW64\net.exe
        net stop serviceupdater
        2⤵
        • Suspicious use of WriteProcessMemory
        PID:888
        • C:\Windows\SysWOW64\net1.exe
          C:\Windows\system32\net1 stop serviceupdater
          3⤵
            PID:956
        • C:\Windows\SysWOW64\installd.exe
          "C:\Windows\system32\installd.exe" nethfdrv
          2⤵
          • Executes dropped EXE
          • Loads dropped DLL
          PID:972
        • C:\Windows\SysWOW64\nethtsrv.exe
          "C:\Windows\system32\nethtsrv.exe" -nfdi
          2⤵
          • Executes dropped EXE
          • Loads dropped DLL
          PID:380
        • C:\Windows\SysWOW64\netupdsrv.exe
          "C:\Windows\system32\netupdsrv.exe" -nfdi
          2⤵
          • Executes dropped EXE
          PID:1844
        • C:\Windows\SysWOW64\net.exe
          net start nethttpservice
          2⤵
          • Suspicious use of WriteProcessMemory
          PID:1168
          • C:\Windows\SysWOW64\net1.exe
            C:\Windows\system32\net1 start nethttpservice
            3⤵
              PID:1320
          • C:\Windows\SysWOW64\net.exe
            net start serviceupdater
            2⤵
            • Suspicious use of WriteProcessMemory
            PID:1484
            • C:\Windows\SysWOW64\net1.exe
              C:\Windows\system32\net1 start serviceupdater
              3⤵
                PID:1052
          • C:\Windows\SysWOW64\nethtsrv.exe
            C:\Windows\SysWOW64\nethtsrv.exe
            1⤵
            • Executes dropped EXE
            • Loads dropped DLL
            • Suspicious use of AdjustPrivilegeToken
            PID:1512
          • C:\Windows\SysWOW64\netupdsrv.exe
            C:\Windows\SysWOW64\netupdsrv.exe
            1⤵
            • Executes dropped EXE
            PID:1364

          Network

          MITRE ATT&CK Enterprise v6

          Replay Monitor

          Loading Replay Monitor...

          Downloads

          • C:\Windows\SysWOW64\hfnapi.dll

            Filesize

            106KB

            MD5

            e59539ef5fe0953aa21d9e5dd7b39e27

            SHA1

            3fb00dfe29b438e9ea3aa29ae3569f75f3e38461

            SHA256

            a9222151af60bce1e922ede14a32ae921fe14dc15cfa7104e9d849d6d2110a7b

            SHA512

            4ea00f6787aaf12c24b5835aa5e746d690866b8910420c3fa5f9de63efd62f864bd33b65e78ca88d10bb63d9d8527696bc825437ef2a81818f1df22762d108ba

          • C:\Windows\SysWOW64\hfpapi.dll

            Filesize

            244KB

            MD5

            0cf1f65e79b892c4cb480ebee7a0a567

            SHA1

            fa5dbab14abdc7cd3dc740ab97d154dd76846342

            SHA256

            b37854c2971a1e691d59e8afacb4cd353407abfd652afe7d4ebcc7ead6fb4d76

            SHA512

            9429a981cf02838abefbc9de1a161b76d63401fd2078faf343408a1e5ad857764d69b34578e38dc2744f835539b08940bde1956c3cfb72cfb8005ba9f8b1a749

          • C:\Windows\SysWOW64\installd.exe

            Filesize

            108KB

            MD5

            75a21195a1ef9bf54c6bfdda7a79e415

            SHA1

            f8f958db7e3b0bc8f9dd097952aa02f8cd11ca4c

            SHA256

            fa91466902636574e5b178afecbcca325bf59f3d46e70226115b9be3b8227d6c

            SHA512

            fb5ea65f08f418956923e6d8b481589f72dafea9711c8a435f430d112f19d0e1c435ebf47b3592d8b4a89d748f8453cd896dcffac06217ae75d04b183c3a6d81

          • C:\Windows\SysWOW64\nethtsrv.exe

            Filesize

            176KB

            MD5

            feb25ae43d64216cbfbc91340f4c0cc5

            SHA1

            f0cecb489b4c99a3b46cc1dea1593153e5aa904a

            SHA256

            593316ec6d2707c83ca15dc1847e1ef3578dee6c9bcd6d5f2693e456e52d3af7

            SHA512

            58336e87f1af4d38a8901184b48421b6e52e8aa95eb7f60865f6407947a1dac2d59c71ad72fe574078d1ccc53d3fcca4047472b8d85d2dbd39e093eec60f264c

          • C:\Windows\SysWOW64\nethtsrv.exe

            Filesize

            176KB

            MD5

            feb25ae43d64216cbfbc91340f4c0cc5

            SHA1

            f0cecb489b4c99a3b46cc1dea1593153e5aa904a

            SHA256

            593316ec6d2707c83ca15dc1847e1ef3578dee6c9bcd6d5f2693e456e52d3af7

            SHA512

            58336e87f1af4d38a8901184b48421b6e52e8aa95eb7f60865f6407947a1dac2d59c71ad72fe574078d1ccc53d3fcca4047472b8d85d2dbd39e093eec60f264c

          • C:\Windows\SysWOW64\netupdsrv.exe

            Filesize

            158KB

            MD5

            66078d9f770288f4965a1cc8b146f29c

            SHA1

            0d9edbbdbe6649d305ba473c6e58d262e4e24b23

            SHA256

            ef1e61703c3ac1aea794018efe1b29aa5209d9cd02d0c22d8b6acfaae25034a1

            SHA512

            15ea21d5d82413911f249599f7c8e74094c5118334ea4a72c765a0c4e14465ca3b6a8799dd22262e25c88cd1dbb33ec5ed5206e06e3c716276e42f204be94739

          • C:\Windows\SysWOW64\netupdsrv.exe

            Filesize

            158KB

            MD5

            66078d9f770288f4965a1cc8b146f29c

            SHA1

            0d9edbbdbe6649d305ba473c6e58d262e4e24b23

            SHA256

            ef1e61703c3ac1aea794018efe1b29aa5209d9cd02d0c22d8b6acfaae25034a1

            SHA512

            15ea21d5d82413911f249599f7c8e74094c5118334ea4a72c765a0c4e14465ca3b6a8799dd22262e25c88cd1dbb33ec5ed5206e06e3c716276e42f204be94739

          • \Users\Admin\AppData\Local\Temp\nst4943.tmp\System.dll

            Filesize

            11KB

            MD5

            c17103ae9072a06da581dec998343fc1

            SHA1

            b72148c6bdfaada8b8c3f950e610ee7cf1da1f8d

            SHA256

            dc58d8ad81cacb0c1ed72e33bff8f23ea40b5252b5bb55d393a0903e6819ae2f

            SHA512

            d32a71aaef18e993f28096d536e41c4d016850721b31171513ce28bbd805a54fd290b7c3e9d935f72e676a1acfb4f0dcc89d95040a0dd29f2b6975855c18986f

          • \Users\Admin\AppData\Local\Temp\nst4943.tmp\nsExec.dll

            Filesize

            6KB

            MD5

            acc2b699edfea5bf5aae45aba3a41e96

            SHA1

            d2accf4d494e43ceb2cff69abe4dd17147d29cc2

            SHA256

            168a974eaa3f588d759db3f47c1a9fdc3494ba1fa1a73a84e5e3b2a4d58abd7e

            SHA512

            e29ea10ada98c71a18273b04f44f385b120d4e8473e441ce5748cfa44a23648814f2656f429b85440157988c88de776c6ac008dc38bf09cbb746c230a46c69fe

          • \Users\Admin\AppData\Local\Temp\nst4943.tmp\nsExec.dll

            Filesize

            6KB

            MD5

            acc2b699edfea5bf5aae45aba3a41e96

            SHA1

            d2accf4d494e43ceb2cff69abe4dd17147d29cc2

            SHA256

            168a974eaa3f588d759db3f47c1a9fdc3494ba1fa1a73a84e5e3b2a4d58abd7e

            SHA512

            e29ea10ada98c71a18273b04f44f385b120d4e8473e441ce5748cfa44a23648814f2656f429b85440157988c88de776c6ac008dc38bf09cbb746c230a46c69fe

          • \Users\Admin\AppData\Local\Temp\nst4943.tmp\nsExec.dll

            Filesize

            6KB

            MD5

            acc2b699edfea5bf5aae45aba3a41e96

            SHA1

            d2accf4d494e43ceb2cff69abe4dd17147d29cc2

            SHA256

            168a974eaa3f588d759db3f47c1a9fdc3494ba1fa1a73a84e5e3b2a4d58abd7e

            SHA512

            e29ea10ada98c71a18273b04f44f385b120d4e8473e441ce5748cfa44a23648814f2656f429b85440157988c88de776c6ac008dc38bf09cbb746c230a46c69fe

          • \Users\Admin\AppData\Local\Temp\nst4943.tmp\nsExec.dll

            Filesize

            6KB

            MD5

            acc2b699edfea5bf5aae45aba3a41e96

            SHA1

            d2accf4d494e43ceb2cff69abe4dd17147d29cc2

            SHA256

            168a974eaa3f588d759db3f47c1a9fdc3494ba1fa1a73a84e5e3b2a4d58abd7e

            SHA512

            e29ea10ada98c71a18273b04f44f385b120d4e8473e441ce5748cfa44a23648814f2656f429b85440157988c88de776c6ac008dc38bf09cbb746c230a46c69fe

          • \Windows\SysWOW64\hfnapi.dll

            Filesize

            106KB

            MD5

            e59539ef5fe0953aa21d9e5dd7b39e27

            SHA1

            3fb00dfe29b438e9ea3aa29ae3569f75f3e38461

            SHA256

            a9222151af60bce1e922ede14a32ae921fe14dc15cfa7104e9d849d6d2110a7b

            SHA512

            4ea00f6787aaf12c24b5835aa5e746d690866b8910420c3fa5f9de63efd62f864bd33b65e78ca88d10bb63d9d8527696bc825437ef2a81818f1df22762d108ba

          • \Windows\SysWOW64\hfnapi.dll

            Filesize

            106KB

            MD5

            e59539ef5fe0953aa21d9e5dd7b39e27

            SHA1

            3fb00dfe29b438e9ea3aa29ae3569f75f3e38461

            SHA256

            a9222151af60bce1e922ede14a32ae921fe14dc15cfa7104e9d849d6d2110a7b

            SHA512

            4ea00f6787aaf12c24b5835aa5e746d690866b8910420c3fa5f9de63efd62f864bd33b65e78ca88d10bb63d9d8527696bc825437ef2a81818f1df22762d108ba

          • \Windows\SysWOW64\hfnapi.dll

            Filesize

            106KB

            MD5

            e59539ef5fe0953aa21d9e5dd7b39e27

            SHA1

            3fb00dfe29b438e9ea3aa29ae3569f75f3e38461

            SHA256

            a9222151af60bce1e922ede14a32ae921fe14dc15cfa7104e9d849d6d2110a7b

            SHA512

            4ea00f6787aaf12c24b5835aa5e746d690866b8910420c3fa5f9de63efd62f864bd33b65e78ca88d10bb63d9d8527696bc825437ef2a81818f1df22762d108ba

          • \Windows\SysWOW64\hfpapi.dll

            Filesize

            244KB

            MD5

            0cf1f65e79b892c4cb480ebee7a0a567

            SHA1

            fa5dbab14abdc7cd3dc740ab97d154dd76846342

            SHA256

            b37854c2971a1e691d59e8afacb4cd353407abfd652afe7d4ebcc7ead6fb4d76

            SHA512

            9429a981cf02838abefbc9de1a161b76d63401fd2078faf343408a1e5ad857764d69b34578e38dc2744f835539b08940bde1956c3cfb72cfb8005ba9f8b1a749

          • \Windows\SysWOW64\hfpapi.dll

            Filesize

            244KB

            MD5

            0cf1f65e79b892c4cb480ebee7a0a567

            SHA1

            fa5dbab14abdc7cd3dc740ab97d154dd76846342

            SHA256

            b37854c2971a1e691d59e8afacb4cd353407abfd652afe7d4ebcc7ead6fb4d76

            SHA512

            9429a981cf02838abefbc9de1a161b76d63401fd2078faf343408a1e5ad857764d69b34578e38dc2744f835539b08940bde1956c3cfb72cfb8005ba9f8b1a749

          • \Windows\SysWOW64\installd.exe

            Filesize

            108KB

            MD5

            75a21195a1ef9bf54c6bfdda7a79e415

            SHA1

            f8f958db7e3b0bc8f9dd097952aa02f8cd11ca4c

            SHA256

            fa91466902636574e5b178afecbcca325bf59f3d46e70226115b9be3b8227d6c

            SHA512

            fb5ea65f08f418956923e6d8b481589f72dafea9711c8a435f430d112f19d0e1c435ebf47b3592d8b4a89d748f8453cd896dcffac06217ae75d04b183c3a6d81

          • \Windows\SysWOW64\nethtsrv.exe

            Filesize

            176KB

            MD5

            feb25ae43d64216cbfbc91340f4c0cc5

            SHA1

            f0cecb489b4c99a3b46cc1dea1593153e5aa904a

            SHA256

            593316ec6d2707c83ca15dc1847e1ef3578dee6c9bcd6d5f2693e456e52d3af7

            SHA512

            58336e87f1af4d38a8901184b48421b6e52e8aa95eb7f60865f6407947a1dac2d59c71ad72fe574078d1ccc53d3fcca4047472b8d85d2dbd39e093eec60f264c

          • \Windows\SysWOW64\netupdsrv.exe

            Filesize

            158KB

            MD5

            66078d9f770288f4965a1cc8b146f29c

            SHA1

            0d9edbbdbe6649d305ba473c6e58d262e4e24b23

            SHA256

            ef1e61703c3ac1aea794018efe1b29aa5209d9cd02d0c22d8b6acfaae25034a1

            SHA512

            15ea21d5d82413911f249599f7c8e74094c5118334ea4a72c765a0c4e14465ca3b6a8799dd22262e25c88cd1dbb33ec5ed5206e06e3c716276e42f204be94739

          • memory/380-70-0x0000000000000000-mapping.dmp

          • memory/888-61-0x0000000000000000-mapping.dmp

          • memory/956-62-0x0000000000000000-mapping.dmp

          • memory/972-64-0x0000000000000000-mapping.dmp

          • memory/1052-87-0x0000000000000000-mapping.dmp

          • memory/1112-59-0x0000000000000000-mapping.dmp

          • memory/1168-80-0x0000000000000000-mapping.dmp

          • memory/1320-81-0x0000000000000000-mapping.dmp

          • memory/1324-57-0x0000000000000000-mapping.dmp

          • memory/1484-86-0x0000000000000000-mapping.dmp

          • memory/1504-54-0x00000000768A1000-0x00000000768A3000-memory.dmp

            Filesize

            8KB

          • memory/1504-58-0x0000000000360000-0x00000000007BE000-memory.dmp

            Filesize

            4.4MB

          • memory/1504-90-0x0000000000360000-0x00000000007BE000-memory.dmp

            Filesize

            4.4MB

          • memory/1844-76-0x0000000000000000-mapping.dmp