Analysis

  • max time kernel
    45s
  • max time network
    49s
  • platform
    windows7_x64
  • resource
    win7-20220901-en
  • resource tags

    arch:x64arch:x86image:win7-20220901-enlocale:en-usos:windows7-x64system
  • submitted
    23-11-2022 10:23

General

  • Target

    711fae0672f846bc555ce7d1de14b04a60e1eec41a0b4c5c97939ae054a65023.exe

  • Size

    602KB

  • MD5

    b0d28e456a87b8cc212030c88d85e7fd

  • SHA1

    0a7372956580381d2e2d127f58c7e9b3912e116e

  • SHA256

    711fae0672f846bc555ce7d1de14b04a60e1eec41a0b4c5c97939ae054a65023

  • SHA512

    17699bbbe3a117b57ab028257666e0b53f9cf9be3542021d509c78cb3319d652f0272bca4b7704640f7b0bfea41b568a3f874d0a0715615672075d770d182123

  • SSDEEP

    12288:HIny5DYTWhi2/RxWE5gR4xrWCBo7kyaIzRsdZcwB1c7J:PUTWkODWOS4xrFceDfc7J

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\711fae0672f846bc555ce7d1de14b04a60e1eec41a0b4c5c97939ae054a65023.exe
    "C:\Users\Admin\AppData\Local\Temp\711fae0672f846bc555ce7d1de14b04a60e1eec41a0b4c5c97939ae054a65023.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:1196
    • C:\Windows\SysWOW64\net.exe
      net stop nethttpservice
      2⤵
      • Suspicious use of WriteProcessMemory
      PID:1708
      • C:\Windows\SysWOW64\net1.exe
        C:\Windows\system32\net1 stop nethttpservice
        3⤵
          PID:932
      • C:\Windows\SysWOW64\net.exe
        net stop serviceupdater
        2⤵
        • Suspicious use of WriteProcessMemory
        PID:896
        • C:\Windows\SysWOW64\net1.exe
          C:\Windows\system32\net1 stop serviceupdater
          3⤵
            PID:336
        • C:\Windows\SysWOW64\installd.exe
          "C:\Windows\system32\installd.exe" nethfdrv
          2⤵
          • Executes dropped EXE
          • Loads dropped DLL
          PID:1192
        • C:\Windows\SysWOW64\nethtsrv.exe
          "C:\Windows\system32\nethtsrv.exe" -nfdi
          2⤵
          • Executes dropped EXE
          • Loads dropped DLL
          PID:1536
        • C:\Windows\SysWOW64\netupdsrv.exe
          "C:\Windows\system32\netupdsrv.exe" -nfdi
          2⤵
          • Executes dropped EXE
          PID:1568
        • C:\Windows\SysWOW64\net.exe
          net start nethttpservice
          2⤵
          • Suspicious use of WriteProcessMemory
          PID:1908
          • C:\Windows\SysWOW64\net1.exe
            C:\Windows\system32\net1 start nethttpservice
            3⤵
              PID:2012
          • C:\Windows\SysWOW64\net.exe
            net start serviceupdater
            2⤵
            • Suspicious use of WriteProcessMemory
            PID:1820
            • C:\Windows\SysWOW64\net1.exe
              C:\Windows\system32\net1 start serviceupdater
              3⤵
                PID:1392
          • C:\Windows\SysWOW64\nethtsrv.exe
            C:\Windows\SysWOW64\nethtsrv.exe
            1⤵
            • Executes dropped EXE
            • Loads dropped DLL
            • Suspicious use of AdjustPrivilegeToken
            PID:1064
          • C:\Windows\SysWOW64\netupdsrv.exe
            C:\Windows\SysWOW64\netupdsrv.exe
            1⤵
            • Executes dropped EXE
            PID:1432

          Network

          MITRE ATT&CK Enterprise v6

          Replay Monitor

          Loading Replay Monitor...

          Downloads

          • C:\Windows\SysWOW64\hfnapi.dll

            Filesize

            106KB

            MD5

            ae2cb9675b0b6e54fbd202aa370f52a1

            SHA1

            2c26b496d3c5ec9ccd4abf856eaa59e2f6528307

            SHA256

            7a5368bfd6890e493ce08d435f780bbf323e1f2b88528c6edaaf9cccd24d1e95

            SHA512

            cfc34852aed1b7bb113909d7087b84cb2e903493447b0bc7c4b914f17959a11b1ef215ee9f2d6d84d8aa31a350c6fcdb6c837829759c903199b90bb0197a00ea

          • C:\Windows\SysWOW64\hfpapi.dll

            Filesize

            241KB

            MD5

            fa2ea323506b82c06ab195251739452e

            SHA1

            772546f53fa18add11d07597555002d63afb701e

            SHA256

            a02b750c605ad580fce4c57f48d4ce618e7d79b412b663f9716d04ff51c2eaed

            SHA512

            74022adf87bc51c9749147f336f279b9b6d789b588c24ec14cbfc5a99534b424156248a46c09439ae37c49de453a1ad35749c123934d42016fb310d509e28848

          • C:\Windows\SysWOW64\installd.exe

            Filesize

            108KB

            MD5

            2e4915f226eb82309388db93542ae6da

            SHA1

            a94722ad219cf4cb1c37aad0223c960f821f8229

            SHA256

            734636f24eee0725fcba30ad76c6fe7c908900b1aa0de9a09e433752b13cc660

            SHA512

            f836dd96051a79a695fae01c932a089e7960391e9714dfca7d8f2d530023d8ca421a6318bb056bbe9870739783011f6f10c32c6331a8cb1ea5da3715849cd197

          • C:\Windows\SysWOW64\nethtsrv.exe

            Filesize

            176KB

            MD5

            0a33766f2a374db65f374e2fa8b4e6f8

            SHA1

            afd733c6378932ddcb7a7c06b71b5bc44b8a29ee

            SHA256

            5dafa49470ac7b431005a56744177d11cccc3856ca03dd90467d5eea90e478a1

            SHA512

            1fed1e8de4c870974a2ec0477e78ec3bf3a3b973b4a9185c96ff16d320ecb7a70293e9fd77a14e1b62628f427148f509c55300cd62b2656077444bcd0f780a64

          • C:\Windows\SysWOW64\nethtsrv.exe

            Filesize

            176KB

            MD5

            0a33766f2a374db65f374e2fa8b4e6f8

            SHA1

            afd733c6378932ddcb7a7c06b71b5bc44b8a29ee

            SHA256

            5dafa49470ac7b431005a56744177d11cccc3856ca03dd90467d5eea90e478a1

            SHA512

            1fed1e8de4c870974a2ec0477e78ec3bf3a3b973b4a9185c96ff16d320ecb7a70293e9fd77a14e1b62628f427148f509c55300cd62b2656077444bcd0f780a64

          • C:\Windows\SysWOW64\netupdsrv.exe

            Filesize

            159KB

            MD5

            2d5fec41158744bfe0148ee3e4f5d4ed

            SHA1

            7828b2222a4f995687efc1de4ecddbfb9773a6a3

            SHA256

            cb723804f05c58171beec4737bbcd826f8612e46030b90df1959b93acaf2d95e

            SHA512

            f4aeda80b64118e4ab595170cb083f825853d64f7f8251ee6ca0006a200e5135a74283730730488b5b73cfdc02d92261751b8df4cad2829fe05d2b1394725812

          • C:\Windows\SysWOW64\netupdsrv.exe

            Filesize

            159KB

            MD5

            2d5fec41158744bfe0148ee3e4f5d4ed

            SHA1

            7828b2222a4f995687efc1de4ecddbfb9773a6a3

            SHA256

            cb723804f05c58171beec4737bbcd826f8612e46030b90df1959b93acaf2d95e

            SHA512

            f4aeda80b64118e4ab595170cb083f825853d64f7f8251ee6ca0006a200e5135a74283730730488b5b73cfdc02d92261751b8df4cad2829fe05d2b1394725812

          • \Users\Admin\AppData\Local\Temp\nsj2DE7.tmp\System.dll

            Filesize

            11KB

            MD5

            c17103ae9072a06da581dec998343fc1

            SHA1

            b72148c6bdfaada8b8c3f950e610ee7cf1da1f8d

            SHA256

            dc58d8ad81cacb0c1ed72e33bff8f23ea40b5252b5bb55d393a0903e6819ae2f

            SHA512

            d32a71aaef18e993f28096d536e41c4d016850721b31171513ce28bbd805a54fd290b7c3e9d935f72e676a1acfb4f0dcc89d95040a0dd29f2b6975855c18986f

          • \Users\Admin\AppData\Local\Temp\nsj2DE7.tmp\nsExec.dll

            Filesize

            6KB

            MD5

            acc2b699edfea5bf5aae45aba3a41e96

            SHA1

            d2accf4d494e43ceb2cff69abe4dd17147d29cc2

            SHA256

            168a974eaa3f588d759db3f47c1a9fdc3494ba1fa1a73a84e5e3b2a4d58abd7e

            SHA512

            e29ea10ada98c71a18273b04f44f385b120d4e8473e441ce5748cfa44a23648814f2656f429b85440157988c88de776c6ac008dc38bf09cbb746c230a46c69fe

          • \Users\Admin\AppData\Local\Temp\nsj2DE7.tmp\nsExec.dll

            Filesize

            6KB

            MD5

            acc2b699edfea5bf5aae45aba3a41e96

            SHA1

            d2accf4d494e43ceb2cff69abe4dd17147d29cc2

            SHA256

            168a974eaa3f588d759db3f47c1a9fdc3494ba1fa1a73a84e5e3b2a4d58abd7e

            SHA512

            e29ea10ada98c71a18273b04f44f385b120d4e8473e441ce5748cfa44a23648814f2656f429b85440157988c88de776c6ac008dc38bf09cbb746c230a46c69fe

          • \Users\Admin\AppData\Local\Temp\nsj2DE7.tmp\nsExec.dll

            Filesize

            6KB

            MD5

            acc2b699edfea5bf5aae45aba3a41e96

            SHA1

            d2accf4d494e43ceb2cff69abe4dd17147d29cc2

            SHA256

            168a974eaa3f588d759db3f47c1a9fdc3494ba1fa1a73a84e5e3b2a4d58abd7e

            SHA512

            e29ea10ada98c71a18273b04f44f385b120d4e8473e441ce5748cfa44a23648814f2656f429b85440157988c88de776c6ac008dc38bf09cbb746c230a46c69fe

          • \Users\Admin\AppData\Local\Temp\nsj2DE7.tmp\nsExec.dll

            Filesize

            6KB

            MD5

            acc2b699edfea5bf5aae45aba3a41e96

            SHA1

            d2accf4d494e43ceb2cff69abe4dd17147d29cc2

            SHA256

            168a974eaa3f588d759db3f47c1a9fdc3494ba1fa1a73a84e5e3b2a4d58abd7e

            SHA512

            e29ea10ada98c71a18273b04f44f385b120d4e8473e441ce5748cfa44a23648814f2656f429b85440157988c88de776c6ac008dc38bf09cbb746c230a46c69fe

          • \Windows\SysWOW64\hfnapi.dll

            Filesize

            106KB

            MD5

            ae2cb9675b0b6e54fbd202aa370f52a1

            SHA1

            2c26b496d3c5ec9ccd4abf856eaa59e2f6528307

            SHA256

            7a5368bfd6890e493ce08d435f780bbf323e1f2b88528c6edaaf9cccd24d1e95

            SHA512

            cfc34852aed1b7bb113909d7087b84cb2e903493447b0bc7c4b914f17959a11b1ef215ee9f2d6d84d8aa31a350c6fcdb6c837829759c903199b90bb0197a00ea

          • \Windows\SysWOW64\hfnapi.dll

            Filesize

            106KB

            MD5

            ae2cb9675b0b6e54fbd202aa370f52a1

            SHA1

            2c26b496d3c5ec9ccd4abf856eaa59e2f6528307

            SHA256

            7a5368bfd6890e493ce08d435f780bbf323e1f2b88528c6edaaf9cccd24d1e95

            SHA512

            cfc34852aed1b7bb113909d7087b84cb2e903493447b0bc7c4b914f17959a11b1ef215ee9f2d6d84d8aa31a350c6fcdb6c837829759c903199b90bb0197a00ea

          • \Windows\SysWOW64\hfnapi.dll

            Filesize

            106KB

            MD5

            ae2cb9675b0b6e54fbd202aa370f52a1

            SHA1

            2c26b496d3c5ec9ccd4abf856eaa59e2f6528307

            SHA256

            7a5368bfd6890e493ce08d435f780bbf323e1f2b88528c6edaaf9cccd24d1e95

            SHA512

            cfc34852aed1b7bb113909d7087b84cb2e903493447b0bc7c4b914f17959a11b1ef215ee9f2d6d84d8aa31a350c6fcdb6c837829759c903199b90bb0197a00ea

          • \Windows\SysWOW64\hfpapi.dll

            Filesize

            241KB

            MD5

            fa2ea323506b82c06ab195251739452e

            SHA1

            772546f53fa18add11d07597555002d63afb701e

            SHA256

            a02b750c605ad580fce4c57f48d4ce618e7d79b412b663f9716d04ff51c2eaed

            SHA512

            74022adf87bc51c9749147f336f279b9b6d789b588c24ec14cbfc5a99534b424156248a46c09439ae37c49de453a1ad35749c123934d42016fb310d509e28848

          • \Windows\SysWOW64\hfpapi.dll

            Filesize

            241KB

            MD5

            fa2ea323506b82c06ab195251739452e

            SHA1

            772546f53fa18add11d07597555002d63afb701e

            SHA256

            a02b750c605ad580fce4c57f48d4ce618e7d79b412b663f9716d04ff51c2eaed

            SHA512

            74022adf87bc51c9749147f336f279b9b6d789b588c24ec14cbfc5a99534b424156248a46c09439ae37c49de453a1ad35749c123934d42016fb310d509e28848

          • \Windows\SysWOW64\installd.exe

            Filesize

            108KB

            MD5

            2e4915f226eb82309388db93542ae6da

            SHA1

            a94722ad219cf4cb1c37aad0223c960f821f8229

            SHA256

            734636f24eee0725fcba30ad76c6fe7c908900b1aa0de9a09e433752b13cc660

            SHA512

            f836dd96051a79a695fae01c932a089e7960391e9714dfca7d8f2d530023d8ca421a6318bb056bbe9870739783011f6f10c32c6331a8cb1ea5da3715849cd197

          • \Windows\SysWOW64\nethtsrv.exe

            Filesize

            176KB

            MD5

            0a33766f2a374db65f374e2fa8b4e6f8

            SHA1

            afd733c6378932ddcb7a7c06b71b5bc44b8a29ee

            SHA256

            5dafa49470ac7b431005a56744177d11cccc3856ca03dd90467d5eea90e478a1

            SHA512

            1fed1e8de4c870974a2ec0477e78ec3bf3a3b973b4a9185c96ff16d320ecb7a70293e9fd77a14e1b62628f427148f509c55300cd62b2656077444bcd0f780a64

          • \Windows\SysWOW64\netupdsrv.exe

            Filesize

            159KB

            MD5

            2d5fec41158744bfe0148ee3e4f5d4ed

            SHA1

            7828b2222a4f995687efc1de4ecddbfb9773a6a3

            SHA256

            cb723804f05c58171beec4737bbcd826f8612e46030b90df1959b93acaf2d95e

            SHA512

            f4aeda80b64118e4ab595170cb083f825853d64f7f8251ee6ca0006a200e5135a74283730730488b5b73cfdc02d92261751b8df4cad2829fe05d2b1394725812

          • memory/336-62-0x0000000000000000-mapping.dmp

          • memory/896-61-0x0000000000000000-mapping.dmp

          • memory/932-59-0x0000000000000000-mapping.dmp

          • memory/1192-64-0x0000000000000000-mapping.dmp

          • memory/1196-90-0x0000000000360000-0x00000000007BE000-memory.dmp

            Filesize

            4.4MB

          • memory/1196-57-0x0000000000360000-0x00000000007BE000-memory.dmp

            Filesize

            4.4MB

          • memory/1196-54-0x0000000074E41000-0x0000000074E43000-memory.dmp

            Filesize

            8KB

          • memory/1392-87-0x0000000000000000-mapping.dmp

          • memory/1536-70-0x0000000000000000-mapping.dmp

          • memory/1568-76-0x0000000000000000-mapping.dmp

          • memory/1708-58-0x0000000000000000-mapping.dmp

          • memory/1820-86-0x0000000000000000-mapping.dmp

          • memory/1908-80-0x0000000000000000-mapping.dmp

          • memory/2012-81-0x0000000000000000-mapping.dmp