Analysis

  • max time kernel
    241s
  • max time network
    271s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20221111-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20221111-enlocale:en-usos:windows10-2004-x64system
  • submitted
    22-11-2022 00:31

General

  • Target

    05762dd9909e86175653dffdc1d75e8531faa7afbda431ec7b7df4f1d310e831.exe

  • Size

    446KB

  • MD5

    bf3fbd290e7f94ffd3930db3782756a8

  • SHA1

    881ce649e45d0e942998608b05655a5841681b4a

  • SHA256

    05762dd9909e86175653dffdc1d75e8531faa7afbda431ec7b7df4f1d310e831

  • SHA512

    9c9796500d86d9166e2f330893ebb1d753a66727e0e8441adc41c8e06c246a77b6cc015e23f6c810691c854011b59c4df7ec2c1f801b1061b78c6704b3f1fd09

  • SSDEEP

    12288:3tNXawKJyiWZrDwrLDYBnGBmzEblNJAmtnp3lN7Ots:3tNXqJy/B6LDYFGBXbTNp3lFl

Score
8/10

Malware Config

Signatures

  • Drops file in Drivers directory 1 IoCs
  • Executes dropped EXE 5 IoCs
  • Loads dropped DLL 14 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.

  • Modifies data under HKEY_USERS 1 IoCs
  • Runs net.exe
  • Suspicious behavior: LoadsDriver 1 IoCs
  • Suspicious use of AdjustPrivilegeToken 1 IoCs
  • Suspicious use of WriteProcessMemory 33 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\05762dd9909e86175653dffdc1d75e8531faa7afbda431ec7b7df4f1d310e831.exe
    "C:\Users\Admin\AppData\Local\Temp\05762dd9909e86175653dffdc1d75e8531faa7afbda431ec7b7df4f1d310e831.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:4932
    • C:\Windows\SysWOW64\net.exe
      net stop nethttpservice
      2⤵
      • Suspicious use of WriteProcessMemory
      PID:1280
      • C:\Windows\SysWOW64\net1.exe
        C:\Windows\system32\net1 stop nethttpservice
        3⤵
          PID:2348
      • C:\Windows\SysWOW64\net.exe
        net stop serviceupdater
        2⤵
        • Suspicious use of WriteProcessMemory
        PID:3772
        • C:\Windows\SysWOW64\net1.exe
          C:\Windows\system32\net1 stop serviceupdater
          3⤵
            PID:2636
        • C:\Windows\SysWOW64\installd.exe
          "C:\Windows\system32\installd.exe" nethfdrv
          2⤵
          • Executes dropped EXE
          • Loads dropped DLL
          PID:4152
        • C:\Windows\SysWOW64\nethtsrv.exe
          "C:\Windows\system32\nethtsrv.exe" -nfdi
          2⤵
          • Executes dropped EXE
          • Loads dropped DLL
          PID:1788
        • C:\Windows\SysWOW64\netupdsrv.exe
          "C:\Windows\system32\netupdsrv.exe" -nfdi
          2⤵
          • Executes dropped EXE
          PID:1036
        • C:\Windows\SysWOW64\net.exe
          net start nethttpservice
          2⤵
          • Suspicious use of WriteProcessMemory
          PID:4780
          • C:\Windows\SysWOW64\net1.exe
            C:\Windows\system32\net1 start nethttpservice
            3⤵
              PID:4068
          • C:\Windows\SysWOW64\net.exe
            net start serviceupdater
            2⤵
            • Suspicious use of WriteProcessMemory
            PID:3048
            • C:\Windows\SysWOW64\net1.exe
              C:\Windows\system32\net1 start serviceupdater
              3⤵
                PID:2244
          • C:\Windows\SysWOW64\nethtsrv.exe
            C:\Windows\SysWOW64\nethtsrv.exe
            1⤵
            • Executes dropped EXE
            • Loads dropped DLL
            • Modifies data under HKEY_USERS
            • Suspicious use of AdjustPrivilegeToken
            PID:2796
          • C:\Windows\SysWOW64\netupdsrv.exe
            C:\Windows\SysWOW64\netupdsrv.exe
            1⤵
            • Executes dropped EXE
            PID:1876

          Network

          MITRE ATT&CK Enterprise v6

          Replay Monitor

          Loading Replay Monitor...

          Downloads

          • C:\Users\Admin\AppData\Local\Temp\nsrC6F7.tmp\System.dll

            Filesize

            11KB

            MD5

            c17103ae9072a06da581dec998343fc1

            SHA1

            b72148c6bdfaada8b8c3f950e610ee7cf1da1f8d

            SHA256

            dc58d8ad81cacb0c1ed72e33bff8f23ea40b5252b5bb55d393a0903e6819ae2f

            SHA512

            d32a71aaef18e993f28096d536e41c4d016850721b31171513ce28bbd805a54fd290b7c3e9d935f72e676a1acfb4f0dcc89d95040a0dd29f2b6975855c18986f

          • C:\Users\Admin\AppData\Local\Temp\nsrC6F7.tmp\nsExec.dll

            Filesize

            6KB

            MD5

            acc2b699edfea5bf5aae45aba3a41e96

            SHA1

            d2accf4d494e43ceb2cff69abe4dd17147d29cc2

            SHA256

            168a974eaa3f588d759db3f47c1a9fdc3494ba1fa1a73a84e5e3b2a4d58abd7e

            SHA512

            e29ea10ada98c71a18273b04f44f385b120d4e8473e441ce5748cfa44a23648814f2656f429b85440157988c88de776c6ac008dc38bf09cbb746c230a46c69fe

          • C:\Users\Admin\AppData\Local\Temp\nsrC6F7.tmp\nsExec.dll

            Filesize

            6KB

            MD5

            acc2b699edfea5bf5aae45aba3a41e96

            SHA1

            d2accf4d494e43ceb2cff69abe4dd17147d29cc2

            SHA256

            168a974eaa3f588d759db3f47c1a9fdc3494ba1fa1a73a84e5e3b2a4d58abd7e

            SHA512

            e29ea10ada98c71a18273b04f44f385b120d4e8473e441ce5748cfa44a23648814f2656f429b85440157988c88de776c6ac008dc38bf09cbb746c230a46c69fe

          • C:\Users\Admin\AppData\Local\Temp\nsrC6F7.tmp\nsExec.dll

            Filesize

            6KB

            MD5

            acc2b699edfea5bf5aae45aba3a41e96

            SHA1

            d2accf4d494e43ceb2cff69abe4dd17147d29cc2

            SHA256

            168a974eaa3f588d759db3f47c1a9fdc3494ba1fa1a73a84e5e3b2a4d58abd7e

            SHA512

            e29ea10ada98c71a18273b04f44f385b120d4e8473e441ce5748cfa44a23648814f2656f429b85440157988c88de776c6ac008dc38bf09cbb746c230a46c69fe

          • C:\Users\Admin\AppData\Local\Temp\nsrC6F7.tmp\nsExec.dll

            Filesize

            6KB

            MD5

            acc2b699edfea5bf5aae45aba3a41e96

            SHA1

            d2accf4d494e43ceb2cff69abe4dd17147d29cc2

            SHA256

            168a974eaa3f588d759db3f47c1a9fdc3494ba1fa1a73a84e5e3b2a4d58abd7e

            SHA512

            e29ea10ada98c71a18273b04f44f385b120d4e8473e441ce5748cfa44a23648814f2656f429b85440157988c88de776c6ac008dc38bf09cbb746c230a46c69fe

          • C:\Users\Admin\AppData\Local\Temp\nsrC6F7.tmp\nsExec.dll

            Filesize

            6KB

            MD5

            acc2b699edfea5bf5aae45aba3a41e96

            SHA1

            d2accf4d494e43ceb2cff69abe4dd17147d29cc2

            SHA256

            168a974eaa3f588d759db3f47c1a9fdc3494ba1fa1a73a84e5e3b2a4d58abd7e

            SHA512

            e29ea10ada98c71a18273b04f44f385b120d4e8473e441ce5748cfa44a23648814f2656f429b85440157988c88de776c6ac008dc38bf09cbb746c230a46c69fe

          • C:\Users\Admin\AppData\Local\Temp\nsrC6F7.tmp\nsExec.dll

            Filesize

            6KB

            MD5

            acc2b699edfea5bf5aae45aba3a41e96

            SHA1

            d2accf4d494e43ceb2cff69abe4dd17147d29cc2

            SHA256

            168a974eaa3f588d759db3f47c1a9fdc3494ba1fa1a73a84e5e3b2a4d58abd7e

            SHA512

            e29ea10ada98c71a18273b04f44f385b120d4e8473e441ce5748cfa44a23648814f2656f429b85440157988c88de776c6ac008dc38bf09cbb746c230a46c69fe

          • C:\Users\Admin\AppData\Local\Temp\nsrC6F7.tmp\nsExec.dll

            Filesize

            6KB

            MD5

            acc2b699edfea5bf5aae45aba3a41e96

            SHA1

            d2accf4d494e43ceb2cff69abe4dd17147d29cc2

            SHA256

            168a974eaa3f588d759db3f47c1a9fdc3494ba1fa1a73a84e5e3b2a4d58abd7e

            SHA512

            e29ea10ada98c71a18273b04f44f385b120d4e8473e441ce5748cfa44a23648814f2656f429b85440157988c88de776c6ac008dc38bf09cbb746c230a46c69fe

          • C:\Users\Admin\AppData\Local\Temp\nsrC6F7.tmp\nsExec.dll

            Filesize

            6KB

            MD5

            acc2b699edfea5bf5aae45aba3a41e96

            SHA1

            d2accf4d494e43ceb2cff69abe4dd17147d29cc2

            SHA256

            168a974eaa3f588d759db3f47c1a9fdc3494ba1fa1a73a84e5e3b2a4d58abd7e

            SHA512

            e29ea10ada98c71a18273b04f44f385b120d4e8473e441ce5748cfa44a23648814f2656f429b85440157988c88de776c6ac008dc38bf09cbb746c230a46c69fe

          • C:\Windows\SysWOW64\hfnapi.dll

            Filesize

            106KB

            MD5

            0859757abec24d88af21abe708d70490

            SHA1

            2f444d4bca6bf645595d6dafced2948602985bce

            SHA256

            dc91a1cee62d41a1c165627ea486c541fec85c08e1ac4ac30e7853498744266c

            SHA512

            504ecf3f260eeb29deaaa6e28970e72090699c91907cc50f4115169f51dc1286ba5f1920347c339c6626b36ab81881d2008f2d5ec7ed406f27493961ae893788

          • C:\Windows\SysWOW64\hfnapi.dll

            Filesize

            106KB

            MD5

            0859757abec24d88af21abe708d70490

            SHA1

            2f444d4bca6bf645595d6dafced2948602985bce

            SHA256

            dc91a1cee62d41a1c165627ea486c541fec85c08e1ac4ac30e7853498744266c

            SHA512

            504ecf3f260eeb29deaaa6e28970e72090699c91907cc50f4115169f51dc1286ba5f1920347c339c6626b36ab81881d2008f2d5ec7ed406f27493961ae893788

          • C:\Windows\SysWOW64\hfnapi.dll

            Filesize

            106KB

            MD5

            0859757abec24d88af21abe708d70490

            SHA1

            2f444d4bca6bf645595d6dafced2948602985bce

            SHA256

            dc91a1cee62d41a1c165627ea486c541fec85c08e1ac4ac30e7853498744266c

            SHA512

            504ecf3f260eeb29deaaa6e28970e72090699c91907cc50f4115169f51dc1286ba5f1920347c339c6626b36ab81881d2008f2d5ec7ed406f27493961ae893788

          • C:\Windows\SysWOW64\hfnapi.dll

            Filesize

            106KB

            MD5

            0859757abec24d88af21abe708d70490

            SHA1

            2f444d4bca6bf645595d6dafced2948602985bce

            SHA256

            dc91a1cee62d41a1c165627ea486c541fec85c08e1ac4ac30e7853498744266c

            SHA512

            504ecf3f260eeb29deaaa6e28970e72090699c91907cc50f4115169f51dc1286ba5f1920347c339c6626b36ab81881d2008f2d5ec7ed406f27493961ae893788

          • C:\Windows\SysWOW64\hfpapi.dll

            Filesize

            241KB

            MD5

            c4f3a77ed51fdbd637365e7964bfb64c

            SHA1

            11bb5abf884885d2290e0742eae31a2434ad5d07

            SHA256

            c026ec1addb2c6c72d55c15a67b3c5a25570d59bf2ef3a8c413d400b1ca7dd6f

            SHA512

            82600e83ca97b167e331fa440171648ae0160027c2bfd2ca42b83af77732a802ab60a9c55ac158cac3bec7079b26e497712cdbf02f1618a4a06f7477e76377d8

          • C:\Windows\SysWOW64\hfpapi.dll

            Filesize

            241KB

            MD5

            c4f3a77ed51fdbd637365e7964bfb64c

            SHA1

            11bb5abf884885d2290e0742eae31a2434ad5d07

            SHA256

            c026ec1addb2c6c72d55c15a67b3c5a25570d59bf2ef3a8c413d400b1ca7dd6f

            SHA512

            82600e83ca97b167e331fa440171648ae0160027c2bfd2ca42b83af77732a802ab60a9c55ac158cac3bec7079b26e497712cdbf02f1618a4a06f7477e76377d8

          • C:\Windows\SysWOW64\hfpapi.dll

            Filesize

            241KB

            MD5

            c4f3a77ed51fdbd637365e7964bfb64c

            SHA1

            11bb5abf884885d2290e0742eae31a2434ad5d07

            SHA256

            c026ec1addb2c6c72d55c15a67b3c5a25570d59bf2ef3a8c413d400b1ca7dd6f

            SHA512

            82600e83ca97b167e331fa440171648ae0160027c2bfd2ca42b83af77732a802ab60a9c55ac158cac3bec7079b26e497712cdbf02f1618a4a06f7477e76377d8

          • C:\Windows\SysWOW64\installd.exe

            Filesize

            108KB

            MD5

            7b53a23e30f9d21b7b190bb5d00d4910

            SHA1

            3bd23f6b13013623c996a77e5593a0a2e18379ad

            SHA256

            954c81afc3eb1b9acd8ba1a5214069b91b5af64b54d9b1216acb9481c1cfda66

            SHA512

            b74705dee997eb98ee7030a88ff555d957193d84976859149cad9537a21619604fd6327ba725db748c658a64229b3147654d18a0b582e648a47ae0950f8c0ea8

          • C:\Windows\SysWOW64\installd.exe

            Filesize

            108KB

            MD5

            7b53a23e30f9d21b7b190bb5d00d4910

            SHA1

            3bd23f6b13013623c996a77e5593a0a2e18379ad

            SHA256

            954c81afc3eb1b9acd8ba1a5214069b91b5af64b54d9b1216acb9481c1cfda66

            SHA512

            b74705dee997eb98ee7030a88ff555d957193d84976859149cad9537a21619604fd6327ba725db748c658a64229b3147654d18a0b582e648a47ae0950f8c0ea8

          • C:\Windows\SysWOW64\nethtsrv.exe

            Filesize

            176KB

            MD5

            96b2009e5ad8a90c589edb46f99a1b8e

            SHA1

            dbd994220ebce48b60f040b95451174fa539e7a7

            SHA256

            29854888a033005faac5b3c76011f54900ef7b11df4f2e876421404c5170639e

            SHA512

            999d8ee961d8755a1b5e2bc8e26f307e350c86773d2968937381db7555de8679f36fc7891498eb1fd39d71405478046951a351ee3bef0a094f71fbe46b725fcf

          • C:\Windows\SysWOW64\nethtsrv.exe

            Filesize

            176KB

            MD5

            96b2009e5ad8a90c589edb46f99a1b8e

            SHA1

            dbd994220ebce48b60f040b95451174fa539e7a7

            SHA256

            29854888a033005faac5b3c76011f54900ef7b11df4f2e876421404c5170639e

            SHA512

            999d8ee961d8755a1b5e2bc8e26f307e350c86773d2968937381db7555de8679f36fc7891498eb1fd39d71405478046951a351ee3bef0a094f71fbe46b725fcf

          • C:\Windows\SysWOW64\nethtsrv.exe

            Filesize

            176KB

            MD5

            96b2009e5ad8a90c589edb46f99a1b8e

            SHA1

            dbd994220ebce48b60f040b95451174fa539e7a7

            SHA256

            29854888a033005faac5b3c76011f54900ef7b11df4f2e876421404c5170639e

            SHA512

            999d8ee961d8755a1b5e2bc8e26f307e350c86773d2968937381db7555de8679f36fc7891498eb1fd39d71405478046951a351ee3bef0a094f71fbe46b725fcf

          • C:\Windows\SysWOW64\netupdsrv.exe

            Filesize

            159KB

            MD5

            f73c79734d9d6a9bf8e5b0bef48ceb36

            SHA1

            1abdce6da97bcc31faae3baa041b4fc81c3dafa5

            SHA256

            be18a213b68c66a6cb3098f04d9b3cf37dc0cf03fe075cb6e10a69567f5a9ad1

            SHA512

            116e99add44161176c34c6aeef7707c7af4271e8b70a4bac12cc1d354e3b93f11ad4fac8841699575088002b95de8a098d864dd2b8b0c8b1d98e93382ccac925

          • C:\Windows\SysWOW64\netupdsrv.exe

            Filesize

            159KB

            MD5

            f73c79734d9d6a9bf8e5b0bef48ceb36

            SHA1

            1abdce6da97bcc31faae3baa041b4fc81c3dafa5

            SHA256

            be18a213b68c66a6cb3098f04d9b3cf37dc0cf03fe075cb6e10a69567f5a9ad1

            SHA512

            116e99add44161176c34c6aeef7707c7af4271e8b70a4bac12cc1d354e3b93f11ad4fac8841699575088002b95de8a098d864dd2b8b0c8b1d98e93382ccac925

          • C:\Windows\SysWOW64\netupdsrv.exe

            Filesize

            159KB

            MD5

            f73c79734d9d6a9bf8e5b0bef48ceb36

            SHA1

            1abdce6da97bcc31faae3baa041b4fc81c3dafa5

            SHA256

            be18a213b68c66a6cb3098f04d9b3cf37dc0cf03fe075cb6e10a69567f5a9ad1

            SHA512

            116e99add44161176c34c6aeef7707c7af4271e8b70a4bac12cc1d354e3b93f11ad4fac8841699575088002b95de8a098d864dd2b8b0c8b1d98e93382ccac925

          • memory/1036-152-0x0000000000000000-mapping.dmp

          • memory/1280-135-0x0000000000000000-mapping.dmp

          • memory/1788-146-0x0000000000000000-mapping.dmp

          • memory/2244-165-0x0000000000000000-mapping.dmp

          • memory/2348-136-0x0000000000000000-mapping.dmp

          • memory/2636-140-0x0000000000000000-mapping.dmp

          • memory/3048-164-0x0000000000000000-mapping.dmp

          • memory/3772-139-0x0000000000000000-mapping.dmp

          • memory/4068-158-0x0000000000000000-mapping.dmp

          • memory/4152-141-0x0000000000000000-mapping.dmp

          • memory/4780-157-0x0000000000000000-mapping.dmp