Analysis

  • max time kernel
    93s
  • max time network
    31s
  • platform
    windows7_x64
  • resource
    win7-20221111-en
  • resource tags

    arch:x64arch:x86image:win7-20221111-enlocale:en-usos:windows7-x64system
  • submitted
    23-11-2022 10:32

General

  • Target

    16f22a2fadd1a103737fc92f9f5bab98e453721e970407cba3fa1c15a2d40fb7.exe

  • Size

    603KB

  • MD5

    6b05b573a62a7db79b7713869241987b

  • SHA1

    e6595b3533159c427ccc36eaef884b02b739dd7e

  • SHA256

    16f22a2fadd1a103737fc92f9f5bab98e453721e970407cba3fa1c15a2d40fb7

  • SHA512

    07d029a0c4d71a29227f153586660fbc724173745f4d66997356c884a54132b4a1758a8cd7df830a1a90757993e005261d62686ef979e450876d8668ac2a87b3

  • SSDEEP

    12288:8Iny5DYT8km9T6AoTlq2xGkgL77ixHyyYUkwRt3l:aUTo96AyxGkgL776ysTl

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\16f22a2fadd1a103737fc92f9f5bab98e453721e970407cba3fa1c15a2d40fb7.exe
    "C:\Users\Admin\AppData\Local\Temp\16f22a2fadd1a103737fc92f9f5bab98e453721e970407cba3fa1c15a2d40fb7.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:1344
    • C:\Windows\SysWOW64\net.exe
      net stop nethttpservice
      2⤵
      • Suspicious use of WriteProcessMemory
      PID:576
      • C:\Windows\SysWOW64\net1.exe
        C:\Windows\system32\net1 stop nethttpservice
        3⤵
          PID:616
      • C:\Windows\SysWOW64\net.exe
        net stop serviceupdater
        2⤵
        • Suspicious use of WriteProcessMemory
        PID:1620
        • C:\Windows\SysWOW64\net1.exe
          C:\Windows\system32\net1 stop serviceupdater
          3⤵
            PID:1396
        • C:\Windows\SysWOW64\installd.exe
          "C:\Windows\system32\installd.exe" nethfdrv
          2⤵
          • Executes dropped EXE
          • Loads dropped DLL
          PID:1180
        • C:\Windows\SysWOW64\nethtsrv.exe
          "C:\Windows\system32\nethtsrv.exe" -nfdi
          2⤵
          • Executes dropped EXE
          • Loads dropped DLL
          PID:1012
        • C:\Windows\SysWOW64\netupdsrv.exe
          "C:\Windows\system32\netupdsrv.exe" -nfdi
          2⤵
          • Executes dropped EXE
          PID:1688
        • C:\Windows\SysWOW64\net.exe
          net start nethttpservice
          2⤵
          • Suspicious use of WriteProcessMemory
          PID:1536
          • C:\Windows\SysWOW64\net1.exe
            C:\Windows\system32\net1 start nethttpservice
            3⤵
              PID:828
          • C:\Windows\SysWOW64\net.exe
            net start serviceupdater
            2⤵
            • Suspicious use of WriteProcessMemory
            PID:1340
            • C:\Windows\SysWOW64\net1.exe
              C:\Windows\system32\net1 start serviceupdater
              3⤵
                PID:1516
          • C:\Windows\SysWOW64\nethtsrv.exe
            C:\Windows\SysWOW64\nethtsrv.exe
            1⤵
            • Executes dropped EXE
            • Loads dropped DLL
            • Suspicious use of AdjustPrivilegeToken
            PID:1684
          • C:\Windows\SysWOW64\netupdsrv.exe
            C:\Windows\SysWOW64\netupdsrv.exe
            1⤵
            • Executes dropped EXE
            PID:1976

          Network

          MITRE ATT&CK Matrix ATT&CK v6

          Discovery

          Query Registry

          1
          T1012

          System Information Discovery

          1
          T1082

          Replay Monitor

          Loading Replay Monitor...

          Downloads

          • C:\Windows\SysWOW64\hfnapi.dll
            Filesize

            106KB

            MD5

            d40aaebc32f9d1169ca8e8017e0de7e2

            SHA1

            0ce152dfee131c92c8acf98113272aab3b1eda39

            SHA256

            f22f9515ef60e97625cb0fdae91d4310f14551f32e345a98bfd69c125a7e2724

            SHA512

            30fbac25aa4169e68295825d51d6aabd087aa71504ca7d190e68853370fabe6aad85c20718d273a1b9c53f03d9dc5639b3a72cbd506ca0d0494e1db7fcef61f8

          • C:\Windows\SysWOW64\hfpapi.dll
            Filesize

            244KB

            MD5

            08a5ef3ea0f93b8708b42284b9b4caae

            SHA1

            cdbc7c18b8c1410820073424f4cf90ca60b15a4a

            SHA256

            5c346c04352d8f295603ddd6ab54076bf536b8e11b17269c2eef14fbc812e301

            SHA512

            0a4335d81156a0d1cdc3fa252796bd18387982b015a943bd8f74d13cd84f501a26058002443cec2724fece1ed7074a8c7064ef65da4f87daf38257b287182eec

          • C:\Windows\SysWOW64\installd.exe
            Filesize

            108KB

            MD5

            a1dfd038cc8cda2fa65db7faabd8e5a3

            SHA1

            3103064af6bac94ad5dc17c8413257f797d93d56

            SHA256

            90e2858b4a1e496953227d1d743c3fa62abf492fdf441edb4f506c83a9f6fb22

            SHA512

            b8d114323a09101727415bdc37f942e04f86711a983a48d7cca713eebcf4ae1359ed56ba14194f15d910ed39f0a61e9aaf0b9de1da63c115e0bf0df75d8b9bb8

          • C:\Windows\SysWOW64\nethtsrv.exe
            Filesize

            176KB

            MD5

            48e750766ad8875d532df6fc5287dfc7

            SHA1

            175251ebc6d1b3544519f44168fcc2fa7844ec49

            SHA256

            0be632acd28d18aa38aa32600165b88bab98abe4d9b23577d9b550ae1ebbe746

            SHA512

            946570061d123bfd35c2b7ce5be67416873e2be18e58bfeb8e3b24a8559402c02567c5e2557bd054a553d4c03a1c2a1c5c07d03d2c71f1ee91efe0345511b332

          • C:\Windows\SysWOW64\nethtsrv.exe
            Filesize

            176KB

            MD5

            48e750766ad8875d532df6fc5287dfc7

            SHA1

            175251ebc6d1b3544519f44168fcc2fa7844ec49

            SHA256

            0be632acd28d18aa38aa32600165b88bab98abe4d9b23577d9b550ae1ebbe746

            SHA512

            946570061d123bfd35c2b7ce5be67416873e2be18e58bfeb8e3b24a8559402c02567c5e2557bd054a553d4c03a1c2a1c5c07d03d2c71f1ee91efe0345511b332

          • C:\Windows\SysWOW64\netupdsrv.exe
            Filesize

            158KB

            MD5

            b5910dd9f600a9c51bb5e4e77a60e575

            SHA1

            ea291418b754690068703760645c31face86e678

            SHA256

            69eb6a67974722d323b99ff6db0fd2f98e37615156b5748bc7c8929c73f72169

            SHA512

            1fd1789af458c95223b95f93466c5b127272260bf972c8639b6f9c6353725fe34354dc90b2ab94f2cbaab2625418e24f7edc53e668d37748b3fb281cadf82dae

          • C:\Windows\SysWOW64\netupdsrv.exe
            Filesize

            158KB

            MD5

            b5910dd9f600a9c51bb5e4e77a60e575

            SHA1

            ea291418b754690068703760645c31face86e678

            SHA256

            69eb6a67974722d323b99ff6db0fd2f98e37615156b5748bc7c8929c73f72169

            SHA512

            1fd1789af458c95223b95f93466c5b127272260bf972c8639b6f9c6353725fe34354dc90b2ab94f2cbaab2625418e24f7edc53e668d37748b3fb281cadf82dae

          • \Users\Admin\AppData\Local\Temp\nsjB493.tmp\System.dll
            Filesize

            11KB

            MD5

            c17103ae9072a06da581dec998343fc1

            SHA1

            b72148c6bdfaada8b8c3f950e610ee7cf1da1f8d

            SHA256

            dc58d8ad81cacb0c1ed72e33bff8f23ea40b5252b5bb55d393a0903e6819ae2f

            SHA512

            d32a71aaef18e993f28096d536e41c4d016850721b31171513ce28bbd805a54fd290b7c3e9d935f72e676a1acfb4f0dcc89d95040a0dd29f2b6975855c18986f

          • \Users\Admin\AppData\Local\Temp\nsjB493.tmp\nsExec.dll
            Filesize

            6KB

            MD5

            acc2b699edfea5bf5aae45aba3a41e96

            SHA1

            d2accf4d494e43ceb2cff69abe4dd17147d29cc2

            SHA256

            168a974eaa3f588d759db3f47c1a9fdc3494ba1fa1a73a84e5e3b2a4d58abd7e

            SHA512

            e29ea10ada98c71a18273b04f44f385b120d4e8473e441ce5748cfa44a23648814f2656f429b85440157988c88de776c6ac008dc38bf09cbb746c230a46c69fe

          • \Users\Admin\AppData\Local\Temp\nsjB493.tmp\nsExec.dll
            Filesize

            6KB

            MD5

            acc2b699edfea5bf5aae45aba3a41e96

            SHA1

            d2accf4d494e43ceb2cff69abe4dd17147d29cc2

            SHA256

            168a974eaa3f588d759db3f47c1a9fdc3494ba1fa1a73a84e5e3b2a4d58abd7e

            SHA512

            e29ea10ada98c71a18273b04f44f385b120d4e8473e441ce5748cfa44a23648814f2656f429b85440157988c88de776c6ac008dc38bf09cbb746c230a46c69fe

          • \Users\Admin\AppData\Local\Temp\nsjB493.tmp\nsExec.dll
            Filesize

            6KB

            MD5

            acc2b699edfea5bf5aae45aba3a41e96

            SHA1

            d2accf4d494e43ceb2cff69abe4dd17147d29cc2

            SHA256

            168a974eaa3f588d759db3f47c1a9fdc3494ba1fa1a73a84e5e3b2a4d58abd7e

            SHA512

            e29ea10ada98c71a18273b04f44f385b120d4e8473e441ce5748cfa44a23648814f2656f429b85440157988c88de776c6ac008dc38bf09cbb746c230a46c69fe

          • \Users\Admin\AppData\Local\Temp\nsjB493.tmp\nsExec.dll
            Filesize

            6KB

            MD5

            acc2b699edfea5bf5aae45aba3a41e96

            SHA1

            d2accf4d494e43ceb2cff69abe4dd17147d29cc2

            SHA256

            168a974eaa3f588d759db3f47c1a9fdc3494ba1fa1a73a84e5e3b2a4d58abd7e

            SHA512

            e29ea10ada98c71a18273b04f44f385b120d4e8473e441ce5748cfa44a23648814f2656f429b85440157988c88de776c6ac008dc38bf09cbb746c230a46c69fe

          • \Windows\SysWOW64\hfnapi.dll
            Filesize

            106KB

            MD5

            d40aaebc32f9d1169ca8e8017e0de7e2

            SHA1

            0ce152dfee131c92c8acf98113272aab3b1eda39

            SHA256

            f22f9515ef60e97625cb0fdae91d4310f14551f32e345a98bfd69c125a7e2724

            SHA512

            30fbac25aa4169e68295825d51d6aabd087aa71504ca7d190e68853370fabe6aad85c20718d273a1b9c53f03d9dc5639b3a72cbd506ca0d0494e1db7fcef61f8

          • \Windows\SysWOW64\hfnapi.dll
            Filesize

            106KB

            MD5

            d40aaebc32f9d1169ca8e8017e0de7e2

            SHA1

            0ce152dfee131c92c8acf98113272aab3b1eda39

            SHA256

            f22f9515ef60e97625cb0fdae91d4310f14551f32e345a98bfd69c125a7e2724

            SHA512

            30fbac25aa4169e68295825d51d6aabd087aa71504ca7d190e68853370fabe6aad85c20718d273a1b9c53f03d9dc5639b3a72cbd506ca0d0494e1db7fcef61f8

          • \Windows\SysWOW64\hfnapi.dll
            Filesize

            106KB

            MD5

            d40aaebc32f9d1169ca8e8017e0de7e2

            SHA1

            0ce152dfee131c92c8acf98113272aab3b1eda39

            SHA256

            f22f9515ef60e97625cb0fdae91d4310f14551f32e345a98bfd69c125a7e2724

            SHA512

            30fbac25aa4169e68295825d51d6aabd087aa71504ca7d190e68853370fabe6aad85c20718d273a1b9c53f03d9dc5639b3a72cbd506ca0d0494e1db7fcef61f8

          • \Windows\SysWOW64\hfpapi.dll
            Filesize

            244KB

            MD5

            08a5ef3ea0f93b8708b42284b9b4caae

            SHA1

            cdbc7c18b8c1410820073424f4cf90ca60b15a4a

            SHA256

            5c346c04352d8f295603ddd6ab54076bf536b8e11b17269c2eef14fbc812e301

            SHA512

            0a4335d81156a0d1cdc3fa252796bd18387982b015a943bd8f74d13cd84f501a26058002443cec2724fece1ed7074a8c7064ef65da4f87daf38257b287182eec

          • \Windows\SysWOW64\hfpapi.dll
            Filesize

            244KB

            MD5

            08a5ef3ea0f93b8708b42284b9b4caae

            SHA1

            cdbc7c18b8c1410820073424f4cf90ca60b15a4a

            SHA256

            5c346c04352d8f295603ddd6ab54076bf536b8e11b17269c2eef14fbc812e301

            SHA512

            0a4335d81156a0d1cdc3fa252796bd18387982b015a943bd8f74d13cd84f501a26058002443cec2724fece1ed7074a8c7064ef65da4f87daf38257b287182eec

          • \Windows\SysWOW64\installd.exe
            Filesize

            108KB

            MD5

            a1dfd038cc8cda2fa65db7faabd8e5a3

            SHA1

            3103064af6bac94ad5dc17c8413257f797d93d56

            SHA256

            90e2858b4a1e496953227d1d743c3fa62abf492fdf441edb4f506c83a9f6fb22

            SHA512

            b8d114323a09101727415bdc37f942e04f86711a983a48d7cca713eebcf4ae1359ed56ba14194f15d910ed39f0a61e9aaf0b9de1da63c115e0bf0df75d8b9bb8

          • \Windows\SysWOW64\nethtsrv.exe
            Filesize

            176KB

            MD5

            48e750766ad8875d532df6fc5287dfc7

            SHA1

            175251ebc6d1b3544519f44168fcc2fa7844ec49

            SHA256

            0be632acd28d18aa38aa32600165b88bab98abe4d9b23577d9b550ae1ebbe746

            SHA512

            946570061d123bfd35c2b7ce5be67416873e2be18e58bfeb8e3b24a8559402c02567c5e2557bd054a553d4c03a1c2a1c5c07d03d2c71f1ee91efe0345511b332

          • \Windows\SysWOW64\netupdsrv.exe
            Filesize

            158KB

            MD5

            b5910dd9f600a9c51bb5e4e77a60e575

            SHA1

            ea291418b754690068703760645c31face86e678

            SHA256

            69eb6a67974722d323b99ff6db0fd2f98e37615156b5748bc7c8929c73f72169

            SHA512

            1fd1789af458c95223b95f93466c5b127272260bf972c8639b6f9c6353725fe34354dc90b2ab94f2cbaab2625418e24f7edc53e668d37748b3fb281cadf82dae

          • memory/576-58-0x0000000000000000-mapping.dmp
          • memory/616-59-0x0000000000000000-mapping.dmp
          • memory/828-82-0x0000000000000000-mapping.dmp
          • memory/1012-70-0x0000000000000000-mapping.dmp
          • memory/1180-64-0x0000000000000000-mapping.dmp
          • memory/1340-87-0x0000000000000000-mapping.dmp
          • memory/1344-54-0x0000000074DE1000-0x0000000074DE3000-memory.dmp
            Filesize

            8KB

          • memory/1344-75-0x0000000000360000-0x00000000007BE000-memory.dmp
            Filesize

            4.4MB

          • memory/1344-55-0x0000000000360000-0x00000000007BE000-memory.dmp
            Filesize

            4.4MB

          • memory/1344-91-0x0000000000360000-0x00000000007BE000-memory.dmp
            Filesize

            4.4MB

          • memory/1396-62-0x0000000000000000-mapping.dmp
          • memory/1516-88-0x0000000000000000-mapping.dmp
          • memory/1536-81-0x0000000000000000-mapping.dmp
          • memory/1620-61-0x0000000000000000-mapping.dmp
          • memory/1688-77-0x0000000000000000-mapping.dmp