Analysis

  • max time kernel
    39s
  • max time network
    44s
  • platform
    windows7_x64
  • resource
    win7-20220812-en
  • resource tags

    arch:x64arch:x86image:win7-20220812-enlocale:en-usos:windows7-x64system
  • submitted
    24/11/2022, 06:02

General

  • Target

    9b3b2f71d742100f03aa36a223bb4d32ed9052793e07f20578a27a4bf2e6f7e0.exe

  • Size

    696KB

  • MD5

    60e0f12f263e73486018778c323f7dd9

  • SHA1

    be438b70c49e64264bd0326cf9d5c8b6ed78b02c

  • SHA256

    9b3b2f71d742100f03aa36a223bb4d32ed9052793e07f20578a27a4bf2e6f7e0

  • SHA512

    28c8858245d9546ea7a717a5a3b566aa523f0337b2a3a0224fd61d1ae172ee153e4a6993aeaaf1c0cc4e14d4873acf1db1d28c31128c1967a61d066a49549d28

  • SSDEEP

    12288:zAbu3fQ+thk6Ez4bflf+a/ax119Xl+g8PGyHLyJDOg/Sc0KsdWqiTeNkFQRyM/TM:zAbuPPEzMfZ+ai/Xl+hPNrxgF01hNkFD

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\9b3b2f71d742100f03aa36a223bb4d32ed9052793e07f20578a27a4bf2e6f7e0.exe
    "C:\Users\Admin\AppData\Local\Temp\9b3b2f71d742100f03aa36a223bb4d32ed9052793e07f20578a27a4bf2e6f7e0.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:856
    • C:\Windows\SysWOW64\net.exe
      net stop nethttpservice
      2⤵
      • Suspicious use of WriteProcessMemory
      PID:1156
      • C:\Windows\SysWOW64\net1.exe
        C:\Windows\system32\net1 stop nethttpservice
        3⤵
          PID:1540
      • C:\Windows\SysWOW64\net.exe
        net stop serviceupdater
        2⤵
        • Suspicious use of WriteProcessMemory
        PID:1992
        • C:\Windows\SysWOW64\net1.exe
          C:\Windows\system32\net1 stop serviceupdater
          3⤵
            PID:788
        • C:\Windows\SysWOW64\installd.exe
          "C:\Windows\system32\installd.exe" nethfdrv
          2⤵
          • Executes dropped EXE
          • Loads dropped DLL
          PID:1484
        • C:\Windows\SysWOW64\nethtsrv.exe
          "C:\Windows\system32\nethtsrv.exe" -nfdi
          2⤵
          • Executes dropped EXE
          • Loads dropped DLL
          PID:1784
        • C:\Windows\SysWOW64\netupdsrv.exe
          "C:\Windows\system32\netupdsrv.exe" -nfdi
          2⤵
          • Executes dropped EXE
          PID:1184
        • C:\Windows\SysWOW64\net.exe
          net start nethttpservice
          2⤵
          • Suspicious use of WriteProcessMemory
          PID:1124
          • C:\Windows\SysWOW64\net1.exe
            C:\Windows\system32\net1 start nethttpservice
            3⤵
              PID:840
          • C:\Windows\SysWOW64\net.exe
            net start serviceupdater
            2⤵
            • Suspicious use of WriteProcessMemory
            PID:1568
            • C:\Windows\SysWOW64\net1.exe
              C:\Windows\system32\net1 start serviceupdater
              3⤵
                PID:1548
          • C:\Windows\SysWOW64\nethtsrv.exe
            C:\Windows\SysWOW64\nethtsrv.exe
            1⤵
            • Executes dropped EXE
            • Loads dropped DLL
            • Suspicious use of AdjustPrivilegeToken
            PID:1256
          • C:\Windows\SysWOW64\netupdsrv.exe
            C:\Windows\SysWOW64\netupdsrv.exe
            1⤵
            • Executes dropped EXE
            PID:1656

          Network

                MITRE ATT&CK Enterprise v6

                Replay Monitor

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                Downloads

                • C:\Windows\SysWOW64\hfnapi.dll

                  Filesize

                  106KB

                  MD5

                  da87993bedd7a917e80c58bb641942ae

                  SHA1

                  60a377b3be3718e817235cc93c528ffe8d7c26a5

                  SHA256

                  f6bd79b5b06f9c06c17b748b56b5c836d0917dfeda6696568b5c57a89f64f45f

                  SHA512

                  2af381b204bd87cace35bb829736153d9422f1b7a25fc13eba25e04b964f9a1603728c8ed207360dcd3a70b4f39f61d2afdbdacef980b7f079827a04aae9e2fb

                • C:\Windows\SysWOW64\hfpapi.dll

                  Filesize

                  244KB

                  MD5

                  6899abc7ccbafa3230faa6b0dd461555

                  SHA1

                  1175faa5eb6f93b602e3c3991494fb35c47996a0

                  SHA256

                  279d6a181c44ba8bb7acd60f0e5159cb5220d93238856979dc2cbaeebcedd30a

                  SHA512

                  f1cea007520eaef64086b1bfff3a5a75cc576f13c8f3d6a37117d753116f2c3c2daf478444fa841dca3ceb137a516d9f7ceb3d1814602c5675c40fa4379a0b26

                • C:\Windows\SysWOW64\installd.exe

                  Filesize

                  108KB

                  MD5

                  bccc3f08125ca73561e6d21fae939c9d

                  SHA1

                  7725628e4d8c18823e1050426e927194ba52dd42

                  SHA256

                  bdebb2b6425b2cafb8925eb15dd555202cf5755e1ffd9d20a1e6a3d1230a999c

                  SHA512

                  87182769141abd377fc941f1ad41da16a54d2a5803feecab2ca46d2d3d11546a16c35decb75b792ac327ff60ddc12eb36c4d83eed43f0b6150f4669ea655e514

                • C:\Windows\SysWOW64\nethtsrv.exe

                  Filesize

                  176KB

                  MD5

                  16212fb1b4f7f41ff20cc77db911efe1

                  SHA1

                  e93b3a054a5d4fef05ea2888e1b4c0496418a8c6

                  SHA256

                  99c002bb15192d9b8fa32616463acf36e72a0332736f6b961bf878e16e24d396

                  SHA512

                  b5fc4e15637edf3e8640b8673dfceb9bbb373806fe8ae40e2645016178002abad40afd1ffc9cf9f43fcac7dfae885548b4e7d7bf226fa90c90c7286306238078

                • C:\Windows\SysWOW64\nethtsrv.exe

                  Filesize

                  176KB

                  MD5

                  16212fb1b4f7f41ff20cc77db911efe1

                  SHA1

                  e93b3a054a5d4fef05ea2888e1b4c0496418a8c6

                  SHA256

                  99c002bb15192d9b8fa32616463acf36e72a0332736f6b961bf878e16e24d396

                  SHA512

                  b5fc4e15637edf3e8640b8673dfceb9bbb373806fe8ae40e2645016178002abad40afd1ffc9cf9f43fcac7dfae885548b4e7d7bf226fa90c90c7286306238078

                • C:\Windows\SysWOW64\netupdsrv.exe

                  Filesize

                  158KB

                  MD5

                  7641706645ac7bde12c262ab7c79a62f

                  SHA1

                  f3b3f18511a2422ba5f3017bee98c9953bff0f6e

                  SHA256

                  589a0b4b69c5cd0c268f807401e89c3644b7e661b949f6edfb12a4640a263eba

                  SHA512

                  861447f99f54e1330d3a9011fedb2ccf4257d7a59464af8fd73968f82a2be07a3f7a4c8f54fb16768df7f872ddd33410f0721135dd1e842678b5b6d250ae0059

                • C:\Windows\SysWOW64\netupdsrv.exe

                  Filesize

                  158KB

                  MD5

                  7641706645ac7bde12c262ab7c79a62f

                  SHA1

                  f3b3f18511a2422ba5f3017bee98c9953bff0f6e

                  SHA256

                  589a0b4b69c5cd0c268f807401e89c3644b7e661b949f6edfb12a4640a263eba

                  SHA512

                  861447f99f54e1330d3a9011fedb2ccf4257d7a59464af8fd73968f82a2be07a3f7a4c8f54fb16768df7f872ddd33410f0721135dd1e842678b5b6d250ae0059

                • \Users\Admin\AppData\Local\Temp\nsd5D01.tmp\System.dll

                  Filesize

                  11KB

                  MD5

                  c17103ae9072a06da581dec998343fc1

                  SHA1

                  b72148c6bdfaada8b8c3f950e610ee7cf1da1f8d

                  SHA256

                  dc58d8ad81cacb0c1ed72e33bff8f23ea40b5252b5bb55d393a0903e6819ae2f

                  SHA512

                  d32a71aaef18e993f28096d536e41c4d016850721b31171513ce28bbd805a54fd290b7c3e9d935f72e676a1acfb4f0dcc89d95040a0dd29f2b6975855c18986f

                • \Users\Admin\AppData\Local\Temp\nsd5D01.tmp\nsExec.dll

                  Filesize

                  6KB

                  MD5

                  acc2b699edfea5bf5aae45aba3a41e96

                  SHA1

                  d2accf4d494e43ceb2cff69abe4dd17147d29cc2

                  SHA256

                  168a974eaa3f588d759db3f47c1a9fdc3494ba1fa1a73a84e5e3b2a4d58abd7e

                  SHA512

                  e29ea10ada98c71a18273b04f44f385b120d4e8473e441ce5748cfa44a23648814f2656f429b85440157988c88de776c6ac008dc38bf09cbb746c230a46c69fe

                • \Users\Admin\AppData\Local\Temp\nsd5D01.tmp\nsExec.dll

                  Filesize

                  6KB

                  MD5

                  acc2b699edfea5bf5aae45aba3a41e96

                  SHA1

                  d2accf4d494e43ceb2cff69abe4dd17147d29cc2

                  SHA256

                  168a974eaa3f588d759db3f47c1a9fdc3494ba1fa1a73a84e5e3b2a4d58abd7e

                  SHA512

                  e29ea10ada98c71a18273b04f44f385b120d4e8473e441ce5748cfa44a23648814f2656f429b85440157988c88de776c6ac008dc38bf09cbb746c230a46c69fe

                • \Users\Admin\AppData\Local\Temp\nsd5D01.tmp\nsExec.dll

                  Filesize

                  6KB

                  MD5

                  acc2b699edfea5bf5aae45aba3a41e96

                  SHA1

                  d2accf4d494e43ceb2cff69abe4dd17147d29cc2

                  SHA256

                  168a974eaa3f588d759db3f47c1a9fdc3494ba1fa1a73a84e5e3b2a4d58abd7e

                  SHA512

                  e29ea10ada98c71a18273b04f44f385b120d4e8473e441ce5748cfa44a23648814f2656f429b85440157988c88de776c6ac008dc38bf09cbb746c230a46c69fe

                • \Users\Admin\AppData\Local\Temp\nsd5D01.tmp\nsExec.dll

                  Filesize

                  6KB

                  MD5

                  acc2b699edfea5bf5aae45aba3a41e96

                  SHA1

                  d2accf4d494e43ceb2cff69abe4dd17147d29cc2

                  SHA256

                  168a974eaa3f588d759db3f47c1a9fdc3494ba1fa1a73a84e5e3b2a4d58abd7e

                  SHA512

                  e29ea10ada98c71a18273b04f44f385b120d4e8473e441ce5748cfa44a23648814f2656f429b85440157988c88de776c6ac008dc38bf09cbb746c230a46c69fe

                • \Windows\SysWOW64\hfnapi.dll

                  Filesize

                  106KB

                  MD5

                  da87993bedd7a917e80c58bb641942ae

                  SHA1

                  60a377b3be3718e817235cc93c528ffe8d7c26a5

                  SHA256

                  f6bd79b5b06f9c06c17b748b56b5c836d0917dfeda6696568b5c57a89f64f45f

                  SHA512

                  2af381b204bd87cace35bb829736153d9422f1b7a25fc13eba25e04b964f9a1603728c8ed207360dcd3a70b4f39f61d2afdbdacef980b7f079827a04aae9e2fb

                • \Windows\SysWOW64\hfnapi.dll

                  Filesize

                  106KB

                  MD5

                  da87993bedd7a917e80c58bb641942ae

                  SHA1

                  60a377b3be3718e817235cc93c528ffe8d7c26a5

                  SHA256

                  f6bd79b5b06f9c06c17b748b56b5c836d0917dfeda6696568b5c57a89f64f45f

                  SHA512

                  2af381b204bd87cace35bb829736153d9422f1b7a25fc13eba25e04b964f9a1603728c8ed207360dcd3a70b4f39f61d2afdbdacef980b7f079827a04aae9e2fb

                • \Windows\SysWOW64\hfnapi.dll

                  Filesize

                  106KB

                  MD5

                  da87993bedd7a917e80c58bb641942ae

                  SHA1

                  60a377b3be3718e817235cc93c528ffe8d7c26a5

                  SHA256

                  f6bd79b5b06f9c06c17b748b56b5c836d0917dfeda6696568b5c57a89f64f45f

                  SHA512

                  2af381b204bd87cace35bb829736153d9422f1b7a25fc13eba25e04b964f9a1603728c8ed207360dcd3a70b4f39f61d2afdbdacef980b7f079827a04aae9e2fb

                • \Windows\SysWOW64\hfpapi.dll

                  Filesize

                  244KB

                  MD5

                  6899abc7ccbafa3230faa6b0dd461555

                  SHA1

                  1175faa5eb6f93b602e3c3991494fb35c47996a0

                  SHA256

                  279d6a181c44ba8bb7acd60f0e5159cb5220d93238856979dc2cbaeebcedd30a

                  SHA512

                  f1cea007520eaef64086b1bfff3a5a75cc576f13c8f3d6a37117d753116f2c3c2daf478444fa841dca3ceb137a516d9f7ceb3d1814602c5675c40fa4379a0b26

                • \Windows\SysWOW64\hfpapi.dll

                  Filesize

                  244KB

                  MD5

                  6899abc7ccbafa3230faa6b0dd461555

                  SHA1

                  1175faa5eb6f93b602e3c3991494fb35c47996a0

                  SHA256

                  279d6a181c44ba8bb7acd60f0e5159cb5220d93238856979dc2cbaeebcedd30a

                  SHA512

                  f1cea007520eaef64086b1bfff3a5a75cc576f13c8f3d6a37117d753116f2c3c2daf478444fa841dca3ceb137a516d9f7ceb3d1814602c5675c40fa4379a0b26

                • \Windows\SysWOW64\installd.exe

                  Filesize

                  108KB

                  MD5

                  bccc3f08125ca73561e6d21fae939c9d

                  SHA1

                  7725628e4d8c18823e1050426e927194ba52dd42

                  SHA256

                  bdebb2b6425b2cafb8925eb15dd555202cf5755e1ffd9d20a1e6a3d1230a999c

                  SHA512

                  87182769141abd377fc941f1ad41da16a54d2a5803feecab2ca46d2d3d11546a16c35decb75b792ac327ff60ddc12eb36c4d83eed43f0b6150f4669ea655e514

                • \Windows\SysWOW64\nethtsrv.exe

                  Filesize

                  176KB

                  MD5

                  16212fb1b4f7f41ff20cc77db911efe1

                  SHA1

                  e93b3a054a5d4fef05ea2888e1b4c0496418a8c6

                  SHA256

                  99c002bb15192d9b8fa32616463acf36e72a0332736f6b961bf878e16e24d396

                  SHA512

                  b5fc4e15637edf3e8640b8673dfceb9bbb373806fe8ae40e2645016178002abad40afd1ffc9cf9f43fcac7dfae885548b4e7d7bf226fa90c90c7286306238078

                • \Windows\SysWOW64\netupdsrv.exe

                  Filesize

                  158KB

                  MD5

                  7641706645ac7bde12c262ab7c79a62f

                  SHA1

                  f3b3f18511a2422ba5f3017bee98c9953bff0f6e

                  SHA256

                  589a0b4b69c5cd0c268f807401e89c3644b7e661b949f6edfb12a4640a263eba

                  SHA512

                  861447f99f54e1330d3a9011fedb2ccf4257d7a59464af8fd73968f82a2be07a3f7a4c8f54fb16768df7f872ddd33410f0721135dd1e842678b5b6d250ae0059

                • memory/856-90-0x0000000000340000-0x00000000007BE000-memory.dmp

                  Filesize

                  4.5MB

                • memory/856-54-0x0000000076151000-0x0000000076153000-memory.dmp

                  Filesize

                  8KB

                • memory/856-55-0x0000000000340000-0x00000000007BE000-memory.dmp

                  Filesize

                  4.5MB