Analysis

  • max time kernel
    45s
  • 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 10:06

General

  • Target

    fa4e513e93b351f2b2c33daa4d1a7bc0ce613b7d4de57a56ef5f6c349b0a5324.exe

  • Size

    602KB

  • MD5

    edb042a2daf4f9d8ed9147ff3c25355d

  • SHA1

    3ca0cc82bf12c82df5664cb3342c3821dcf00619

  • SHA256

    fa4e513e93b351f2b2c33daa4d1a7bc0ce613b7d4de57a56ef5f6c349b0a5324

  • SHA512

    af8fe0f49cc3eee0c17bec6c7fce028b1e2a827c358337593285803cc1c8210fda6cdf11daa24b7cb3c9c97d45a501c1040619e8ff42343e74363e9ff5360bec

  • SSDEEP

    12288:IIny5DYTgpjbq22FN1L5VOQyLDDKjFGHmt:GUTgpjwFNd5By0AG

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\fa4e513e93b351f2b2c33daa4d1a7bc0ce613b7d4de57a56ef5f6c349b0a5324.exe
    "C:\Users\Admin\AppData\Local\Temp\fa4e513e93b351f2b2c33daa4d1a7bc0ce613b7d4de57a56ef5f6c349b0a5324.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:832
    • C:\Windows\SysWOW64\net.exe
      net stop nethttpservice
      2⤵
      • Suspicious use of WriteProcessMemory
      PID:2028
      • C:\Windows\SysWOW64\net1.exe
        C:\Windows\system32\net1 stop nethttpservice
        3⤵
          PID:564
      • C:\Windows\SysWOW64\net.exe
        net stop serviceupdater
        2⤵
        • Suspicious use of WriteProcessMemory
        PID:268
        • C:\Windows\SysWOW64\net1.exe
          C:\Windows\system32\net1 stop serviceupdater
          3⤵
            PID:2036
        • C:\Windows\SysWOW64\installd.exe
          "C:\Windows\system32\installd.exe" nethfdrv
          2⤵
          • Executes dropped EXE
          • Loads dropped DLL
          PID:1224
        • C:\Windows\SysWOW64\nethtsrv.exe
          "C:\Windows\system32\nethtsrv.exe" -nfdi
          2⤵
          • Executes dropped EXE
          • Loads dropped DLL
          PID:1548
        • C:\Windows\SysWOW64\netupdsrv.exe
          "C:\Windows\system32\netupdsrv.exe" -nfdi
          2⤵
          • Executes dropped EXE
          PID:516
        • C:\Windows\SysWOW64\net.exe
          net start nethttpservice
          2⤵
          • Suspicious use of WriteProcessMemory
          PID:1620
          • C:\Windows\SysWOW64\net1.exe
            C:\Windows\system32\net1 start nethttpservice
            3⤵
              PID:960
          • C:\Windows\SysWOW64\net.exe
            net start serviceupdater
            2⤵
            • Suspicious use of WriteProcessMemory
            PID:1044
            • C:\Windows\SysWOW64\net1.exe
              C:\Windows\system32\net1 start serviceupdater
              3⤵
                PID:856
          • C:\Windows\SysWOW64\nethtsrv.exe
            C:\Windows\SysWOW64\nethtsrv.exe
            1⤵
            • Executes dropped EXE
            • Loads dropped DLL
            • Suspicious use of AdjustPrivilegeToken
            PID:844
          • C:\Windows\SysWOW64\netupdsrv.exe
            C:\Windows\SysWOW64\netupdsrv.exe
            1⤵
            • Executes dropped EXE
            PID:1992

          Network

          MITRE ATT&CK Enterprise v6

          Replay Monitor

          Loading Replay Monitor...

          Downloads

          • C:\Windows\SysWOW64\hfnapi.dll

            Filesize

            106KB

            MD5

            e46d86fc4ccc9a9cdd668a9a52f39660

            SHA1

            8e79c5d37fedc6482437d937d09e44db3e70a3f4

            SHA256

            dc938f72e541c8d200cfbb57b22222eb6ca5a20bb1e37bda3b4ce5ec194102b1

            SHA512

            4ecf39d8aacd114a53d261d790dab521c35cbb02513d957671dc4817b8ecba8baa156370417f1a416ddad4c6e7bc7d2f8ce46891a7c3c847db44b9fb1fa7f7be

          • C:\Windows\SysWOW64\hfpapi.dll

            Filesize

            241KB

            MD5

            b3de05eb0a98bb2ecc6599a319c766f6

            SHA1

            998922d7d570fd8103ca17b767c0047549011f38

            SHA256

            0a3a53672870f658bfad081cba110de506e4321df9eb7070bb183a868c11bd2a

            SHA512

            547f8fe674446f39b5639e1c451946d09837cf5c5a365253879a36269c873ae91181cbda330d0487f9e45b298132613291432e0bbcf02f5e4d8f32a92a8a3a08

          • C:\Windows\SysWOW64\installd.exe

            Filesize

            108KB

            MD5

            0e1ce39926b8ea1133d14e1c0cf8e2fd

            SHA1

            8cae9d32c284fe50d0b6b2d08b2fa65ceabb6542

            SHA256

            5692e348257e6dd60bb892537184273de86ec018cef4c90c898dd8011c58cd0d

            SHA512

            8c8b6a77210f86402d3ccb245851df2e2e1a6c45f502ece164655b44226cbf6e7f199ce25feff2fdad92f0ca486273bd1ed5d3534f0dcbb8239a28c0c63ee049

          • C:\Windows\SysWOW64\nethtsrv.exe

            Filesize

            176KB

            MD5

            6af09b63fce31e700062ca7b6629d2d3

            SHA1

            9cf726fafa1cf6721d03c1ec86b5a98d94019f05

            SHA256

            f6a38b494fbe7536f82f881f2f1c99d93c8ea60b34719bbd76bd7fe2a5fdefaa

            SHA512

            027521ade27f3929e7ee176d2000158b3f5351a4e1504496bc0ead4a84a84d6e0da922861013368ec52631a4ba52a79af29ba3a32c34c7c5bc68f742fdf9860a

          • C:\Windows\SysWOW64\nethtsrv.exe

            Filesize

            176KB

            MD5

            6af09b63fce31e700062ca7b6629d2d3

            SHA1

            9cf726fafa1cf6721d03c1ec86b5a98d94019f05

            SHA256

            f6a38b494fbe7536f82f881f2f1c99d93c8ea60b34719bbd76bd7fe2a5fdefaa

            SHA512

            027521ade27f3929e7ee176d2000158b3f5351a4e1504496bc0ead4a84a84d6e0da922861013368ec52631a4ba52a79af29ba3a32c34c7c5bc68f742fdf9860a

          • C:\Windows\SysWOW64\netupdsrv.exe

            Filesize

            158KB

            MD5

            fd067e71c869c531bf16da77cf3eab43

            SHA1

            d4ab969cc9e644874c9e3607f73fdc6f95232a73

            SHA256

            6f94b7ec74b3e6026be485cfdf4f11270c7ff9057499dc8f5fdd86fdcc7f6914

            SHA512

            30912c9ae941c2c4522a995abbabb75bfcc2efe91df11a50409ed20590a9f93fda9e04bd0b30675f3e7c68fdb9e5393108d5af434bc6ab7f909e665486c4bce4

          • C:\Windows\SysWOW64\netupdsrv.exe

            Filesize

            158KB

            MD5

            fd067e71c869c531bf16da77cf3eab43

            SHA1

            d4ab969cc9e644874c9e3607f73fdc6f95232a73

            SHA256

            6f94b7ec74b3e6026be485cfdf4f11270c7ff9057499dc8f5fdd86fdcc7f6914

            SHA512

            30912c9ae941c2c4522a995abbabb75bfcc2efe91df11a50409ed20590a9f93fda9e04bd0b30675f3e7c68fdb9e5393108d5af434bc6ab7f909e665486c4bce4

          • \Users\Admin\AppData\Local\Temp\nseE08.tmp\System.dll

            Filesize

            11KB

            MD5

            c17103ae9072a06da581dec998343fc1

            SHA1

            b72148c6bdfaada8b8c3f950e610ee7cf1da1f8d

            SHA256

            dc58d8ad81cacb0c1ed72e33bff8f23ea40b5252b5bb55d393a0903e6819ae2f

            SHA512

            d32a71aaef18e993f28096d536e41c4d016850721b31171513ce28bbd805a54fd290b7c3e9d935f72e676a1acfb4f0dcc89d95040a0dd29f2b6975855c18986f

          • \Users\Admin\AppData\Local\Temp\nseE08.tmp\nsExec.dll

            Filesize

            6KB

            MD5

            acc2b699edfea5bf5aae45aba3a41e96

            SHA1

            d2accf4d494e43ceb2cff69abe4dd17147d29cc2

            SHA256

            168a974eaa3f588d759db3f47c1a9fdc3494ba1fa1a73a84e5e3b2a4d58abd7e

            SHA512

            e29ea10ada98c71a18273b04f44f385b120d4e8473e441ce5748cfa44a23648814f2656f429b85440157988c88de776c6ac008dc38bf09cbb746c230a46c69fe

          • \Users\Admin\AppData\Local\Temp\nseE08.tmp\nsExec.dll

            Filesize

            6KB

            MD5

            acc2b699edfea5bf5aae45aba3a41e96

            SHA1

            d2accf4d494e43ceb2cff69abe4dd17147d29cc2

            SHA256

            168a974eaa3f588d759db3f47c1a9fdc3494ba1fa1a73a84e5e3b2a4d58abd7e

            SHA512

            e29ea10ada98c71a18273b04f44f385b120d4e8473e441ce5748cfa44a23648814f2656f429b85440157988c88de776c6ac008dc38bf09cbb746c230a46c69fe

          • \Users\Admin\AppData\Local\Temp\nseE08.tmp\nsExec.dll

            Filesize

            6KB

            MD5

            acc2b699edfea5bf5aae45aba3a41e96

            SHA1

            d2accf4d494e43ceb2cff69abe4dd17147d29cc2

            SHA256

            168a974eaa3f588d759db3f47c1a9fdc3494ba1fa1a73a84e5e3b2a4d58abd7e

            SHA512

            e29ea10ada98c71a18273b04f44f385b120d4e8473e441ce5748cfa44a23648814f2656f429b85440157988c88de776c6ac008dc38bf09cbb746c230a46c69fe

          • \Users\Admin\AppData\Local\Temp\nseE08.tmp\nsExec.dll

            Filesize

            6KB

            MD5

            acc2b699edfea5bf5aae45aba3a41e96

            SHA1

            d2accf4d494e43ceb2cff69abe4dd17147d29cc2

            SHA256

            168a974eaa3f588d759db3f47c1a9fdc3494ba1fa1a73a84e5e3b2a4d58abd7e

            SHA512

            e29ea10ada98c71a18273b04f44f385b120d4e8473e441ce5748cfa44a23648814f2656f429b85440157988c88de776c6ac008dc38bf09cbb746c230a46c69fe

          • \Windows\SysWOW64\hfnapi.dll

            Filesize

            106KB

            MD5

            e46d86fc4ccc9a9cdd668a9a52f39660

            SHA1

            8e79c5d37fedc6482437d937d09e44db3e70a3f4

            SHA256

            dc938f72e541c8d200cfbb57b22222eb6ca5a20bb1e37bda3b4ce5ec194102b1

            SHA512

            4ecf39d8aacd114a53d261d790dab521c35cbb02513d957671dc4817b8ecba8baa156370417f1a416ddad4c6e7bc7d2f8ce46891a7c3c847db44b9fb1fa7f7be

          • \Windows\SysWOW64\hfnapi.dll

            Filesize

            106KB

            MD5

            e46d86fc4ccc9a9cdd668a9a52f39660

            SHA1

            8e79c5d37fedc6482437d937d09e44db3e70a3f4

            SHA256

            dc938f72e541c8d200cfbb57b22222eb6ca5a20bb1e37bda3b4ce5ec194102b1

            SHA512

            4ecf39d8aacd114a53d261d790dab521c35cbb02513d957671dc4817b8ecba8baa156370417f1a416ddad4c6e7bc7d2f8ce46891a7c3c847db44b9fb1fa7f7be

          • \Windows\SysWOW64\hfnapi.dll

            Filesize

            106KB

            MD5

            e46d86fc4ccc9a9cdd668a9a52f39660

            SHA1

            8e79c5d37fedc6482437d937d09e44db3e70a3f4

            SHA256

            dc938f72e541c8d200cfbb57b22222eb6ca5a20bb1e37bda3b4ce5ec194102b1

            SHA512

            4ecf39d8aacd114a53d261d790dab521c35cbb02513d957671dc4817b8ecba8baa156370417f1a416ddad4c6e7bc7d2f8ce46891a7c3c847db44b9fb1fa7f7be

          • \Windows\SysWOW64\hfpapi.dll

            Filesize

            241KB

            MD5

            b3de05eb0a98bb2ecc6599a319c766f6

            SHA1

            998922d7d570fd8103ca17b767c0047549011f38

            SHA256

            0a3a53672870f658bfad081cba110de506e4321df9eb7070bb183a868c11bd2a

            SHA512

            547f8fe674446f39b5639e1c451946d09837cf5c5a365253879a36269c873ae91181cbda330d0487f9e45b298132613291432e0bbcf02f5e4d8f32a92a8a3a08

          • \Windows\SysWOW64\hfpapi.dll

            Filesize

            241KB

            MD5

            b3de05eb0a98bb2ecc6599a319c766f6

            SHA1

            998922d7d570fd8103ca17b767c0047549011f38

            SHA256

            0a3a53672870f658bfad081cba110de506e4321df9eb7070bb183a868c11bd2a

            SHA512

            547f8fe674446f39b5639e1c451946d09837cf5c5a365253879a36269c873ae91181cbda330d0487f9e45b298132613291432e0bbcf02f5e4d8f32a92a8a3a08

          • \Windows\SysWOW64\installd.exe

            Filesize

            108KB

            MD5

            0e1ce39926b8ea1133d14e1c0cf8e2fd

            SHA1

            8cae9d32c284fe50d0b6b2d08b2fa65ceabb6542

            SHA256

            5692e348257e6dd60bb892537184273de86ec018cef4c90c898dd8011c58cd0d

            SHA512

            8c8b6a77210f86402d3ccb245851df2e2e1a6c45f502ece164655b44226cbf6e7f199ce25feff2fdad92f0ca486273bd1ed5d3534f0dcbb8239a28c0c63ee049

          • \Windows\SysWOW64\nethtsrv.exe

            Filesize

            176KB

            MD5

            6af09b63fce31e700062ca7b6629d2d3

            SHA1

            9cf726fafa1cf6721d03c1ec86b5a98d94019f05

            SHA256

            f6a38b494fbe7536f82f881f2f1c99d93c8ea60b34719bbd76bd7fe2a5fdefaa

            SHA512

            027521ade27f3929e7ee176d2000158b3f5351a4e1504496bc0ead4a84a84d6e0da922861013368ec52631a4ba52a79af29ba3a32c34c7c5bc68f742fdf9860a

          • \Windows\SysWOW64\netupdsrv.exe

            Filesize

            158KB

            MD5

            fd067e71c869c531bf16da77cf3eab43

            SHA1

            d4ab969cc9e644874c9e3607f73fdc6f95232a73

            SHA256

            6f94b7ec74b3e6026be485cfdf4f11270c7ff9057499dc8f5fdd86fdcc7f6914

            SHA512

            30912c9ae941c2c4522a995abbabb75bfcc2efe91df11a50409ed20590a9f93fda9e04bd0b30675f3e7c68fdb9e5393108d5af434bc6ab7f909e665486c4bce4

          • memory/268-61-0x0000000000000000-mapping.dmp

          • memory/516-76-0x0000000000000000-mapping.dmp

          • memory/564-59-0x0000000000000000-mapping.dmp

          • memory/832-54-0x0000000074FD1000-0x0000000074FD3000-memory.dmp

            Filesize

            8KB

          • memory/832-90-0x0000000000360000-0x00000000007BE000-memory.dmp

            Filesize

            4.4MB

          • memory/832-55-0x0000000000360000-0x00000000007BE000-memory.dmp

            Filesize

            4.4MB

          • memory/856-87-0x0000000000000000-mapping.dmp

          • memory/960-81-0x0000000000000000-mapping.dmp

          • memory/1044-86-0x0000000000000000-mapping.dmp

          • memory/1224-64-0x0000000000000000-mapping.dmp

          • memory/1548-70-0x0000000000000000-mapping.dmp

          • memory/1620-80-0x0000000000000000-mapping.dmp

          • memory/2028-58-0x0000000000000000-mapping.dmp

          • memory/2036-62-0x0000000000000000-mapping.dmp