Analysis

  • max time kernel
    184s
  • max time network
    191s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20221111-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20221111-enlocale:en-usos:windows10-2004-x64system
  • submitted
    23-11-2022 10:25

General

  • Target

    5eb15b08384c688b1d10be33b3d4b3d8c301c1c58ca271557228ddfe697bcd11.exe

  • Size

    602KB

  • MD5

    1d287849db44243c140c54fce009c0f0

  • SHA1

    f2f096ca0052bf79039749932ff839497207c3e7

  • SHA256

    5eb15b08384c688b1d10be33b3d4b3d8c301c1c58ca271557228ddfe697bcd11

  • SHA512

    7f0f3702d603ca0e7c94d60e3ab9b204b070e9b8efc506a681c8a1882fa1aca48aca6afcd3f034bc930350f70a7a32e24d52ad67d8f5af8f1f465767235ba300

  • SSDEEP

    12288:/Iny5DYTZI7LkIzziVvfbyF1ZaS9dt8EP5AjiLAAik3MWgGUUW2:nUTZQF0Ed95piEMt5c

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\5eb15b08384c688b1d10be33b3d4b3d8c301c1c58ca271557228ddfe697bcd11.exe
    "C:\Users\Admin\AppData\Local\Temp\5eb15b08384c688b1d10be33b3d4b3d8c301c1c58ca271557228ddfe697bcd11.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:4684
    • C:\Windows\SysWOW64\net.exe
      net stop nethttpservice
      2⤵
      • Suspicious use of WriteProcessMemory
      PID:1228
      • C:\Windows\SysWOW64\net1.exe
        C:\Windows\system32\net1 stop nethttpservice
        3⤵
          PID:2952
      • C:\Windows\SysWOW64\net.exe
        net stop serviceupdater
        2⤵
        • Suspicious use of WriteProcessMemory
        PID:1004
        • C:\Windows\SysWOW64\net1.exe
          C:\Windows\system32\net1 stop serviceupdater
          3⤵
            PID:544
        • C:\Windows\SysWOW64\installd.exe
          "C:\Windows\system32\installd.exe" nethfdrv
          2⤵
          • Executes dropped EXE
          • Loads dropped DLL
          PID:2864
        • C:\Windows\SysWOW64\nethtsrv.exe
          "C:\Windows\system32\nethtsrv.exe" -nfdi
          2⤵
          • Executes dropped EXE
          • Loads dropped DLL
          PID:2452
        • C:\Windows\SysWOW64\netupdsrv.exe
          "C:\Windows\system32\netupdsrv.exe" -nfdi
          2⤵
          • Executes dropped EXE
          PID:4228
        • C:\Windows\SysWOW64\net.exe
          net start nethttpservice
          2⤵
          • Suspicious use of WriteProcessMemory
          PID:4424
          • C:\Windows\SysWOW64\net1.exe
            C:\Windows\system32\net1 start nethttpservice
            3⤵
              PID:5028
          • C:\Windows\SysWOW64\net.exe
            net start serviceupdater
            2⤵
            • Suspicious use of WriteProcessMemory
            PID:3328
            • C:\Windows\SysWOW64\net1.exe
              C:\Windows\system32\net1 start serviceupdater
              3⤵
                PID:4764
          • 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:1988
          • C:\Windows\SysWOW64\netupdsrv.exe
            C:\Windows\SysWOW64\netupdsrv.exe
            1⤵
            • Executes dropped EXE
            PID:3180

          Network

          MITRE ATT&CK Enterprise v6

          Replay Monitor

          Loading Replay Monitor...

          Downloads

          • C:\Users\Admin\AppData\Local\Temp\nsl16A7.tmp\System.dll

            Filesize

            11KB

            MD5

            c17103ae9072a06da581dec998343fc1

            SHA1

            b72148c6bdfaada8b8c3f950e610ee7cf1da1f8d

            SHA256

            dc58d8ad81cacb0c1ed72e33bff8f23ea40b5252b5bb55d393a0903e6819ae2f

            SHA512

            d32a71aaef18e993f28096d536e41c4d016850721b31171513ce28bbd805a54fd290b7c3e9d935f72e676a1acfb4f0dcc89d95040a0dd29f2b6975855c18986f

          • C:\Users\Admin\AppData\Local\Temp\nsl16A7.tmp\nsExec.dll

            Filesize

            6KB

            MD5

            acc2b699edfea5bf5aae45aba3a41e96

            SHA1

            d2accf4d494e43ceb2cff69abe4dd17147d29cc2

            SHA256

            168a974eaa3f588d759db3f47c1a9fdc3494ba1fa1a73a84e5e3b2a4d58abd7e

            SHA512

            e29ea10ada98c71a18273b04f44f385b120d4e8473e441ce5748cfa44a23648814f2656f429b85440157988c88de776c6ac008dc38bf09cbb746c230a46c69fe

          • C:\Users\Admin\AppData\Local\Temp\nsl16A7.tmp\nsExec.dll

            Filesize

            6KB

            MD5

            acc2b699edfea5bf5aae45aba3a41e96

            SHA1

            d2accf4d494e43ceb2cff69abe4dd17147d29cc2

            SHA256

            168a974eaa3f588d759db3f47c1a9fdc3494ba1fa1a73a84e5e3b2a4d58abd7e

            SHA512

            e29ea10ada98c71a18273b04f44f385b120d4e8473e441ce5748cfa44a23648814f2656f429b85440157988c88de776c6ac008dc38bf09cbb746c230a46c69fe

          • C:\Users\Admin\AppData\Local\Temp\nsl16A7.tmp\nsExec.dll

            Filesize

            6KB

            MD5

            acc2b699edfea5bf5aae45aba3a41e96

            SHA1

            d2accf4d494e43ceb2cff69abe4dd17147d29cc2

            SHA256

            168a974eaa3f588d759db3f47c1a9fdc3494ba1fa1a73a84e5e3b2a4d58abd7e

            SHA512

            e29ea10ada98c71a18273b04f44f385b120d4e8473e441ce5748cfa44a23648814f2656f429b85440157988c88de776c6ac008dc38bf09cbb746c230a46c69fe

          • C:\Users\Admin\AppData\Local\Temp\nsl16A7.tmp\nsExec.dll

            Filesize

            6KB

            MD5

            acc2b699edfea5bf5aae45aba3a41e96

            SHA1

            d2accf4d494e43ceb2cff69abe4dd17147d29cc2

            SHA256

            168a974eaa3f588d759db3f47c1a9fdc3494ba1fa1a73a84e5e3b2a4d58abd7e

            SHA512

            e29ea10ada98c71a18273b04f44f385b120d4e8473e441ce5748cfa44a23648814f2656f429b85440157988c88de776c6ac008dc38bf09cbb746c230a46c69fe

          • C:\Users\Admin\AppData\Local\Temp\nsl16A7.tmp\nsExec.dll

            Filesize

            6KB

            MD5

            acc2b699edfea5bf5aae45aba3a41e96

            SHA1

            d2accf4d494e43ceb2cff69abe4dd17147d29cc2

            SHA256

            168a974eaa3f588d759db3f47c1a9fdc3494ba1fa1a73a84e5e3b2a4d58abd7e

            SHA512

            e29ea10ada98c71a18273b04f44f385b120d4e8473e441ce5748cfa44a23648814f2656f429b85440157988c88de776c6ac008dc38bf09cbb746c230a46c69fe

          • C:\Users\Admin\AppData\Local\Temp\nsl16A7.tmp\nsExec.dll

            Filesize

            6KB

            MD5

            acc2b699edfea5bf5aae45aba3a41e96

            SHA1

            d2accf4d494e43ceb2cff69abe4dd17147d29cc2

            SHA256

            168a974eaa3f588d759db3f47c1a9fdc3494ba1fa1a73a84e5e3b2a4d58abd7e

            SHA512

            e29ea10ada98c71a18273b04f44f385b120d4e8473e441ce5748cfa44a23648814f2656f429b85440157988c88de776c6ac008dc38bf09cbb746c230a46c69fe

          • C:\Users\Admin\AppData\Local\Temp\nsl16A7.tmp\nsExec.dll

            Filesize

            6KB

            MD5

            acc2b699edfea5bf5aae45aba3a41e96

            SHA1

            d2accf4d494e43ceb2cff69abe4dd17147d29cc2

            SHA256

            168a974eaa3f588d759db3f47c1a9fdc3494ba1fa1a73a84e5e3b2a4d58abd7e

            SHA512

            e29ea10ada98c71a18273b04f44f385b120d4e8473e441ce5748cfa44a23648814f2656f429b85440157988c88de776c6ac008dc38bf09cbb746c230a46c69fe

          • C:\Users\Admin\AppData\Local\Temp\nsl16A7.tmp\nsExec.dll

            Filesize

            6KB

            MD5

            acc2b699edfea5bf5aae45aba3a41e96

            SHA1

            d2accf4d494e43ceb2cff69abe4dd17147d29cc2

            SHA256

            168a974eaa3f588d759db3f47c1a9fdc3494ba1fa1a73a84e5e3b2a4d58abd7e

            SHA512

            e29ea10ada98c71a18273b04f44f385b120d4e8473e441ce5748cfa44a23648814f2656f429b85440157988c88de776c6ac008dc38bf09cbb746c230a46c69fe

          • C:\Windows\SysWOW64\hfnapi.dll

            Filesize

            106KB

            MD5

            a72448ef645d2afaee41ebb4e8a36366

            SHA1

            401a30e11dc568cef158f2c523dd366df9ef3311

            SHA256

            d097bcae473e05a2e664be449cfbde155556995c63097a94f39019500004b069

            SHA512

            9520d924a9be9bf186eab5fc4cda0087b64bd5e937030aa272e2661c1b272cbf5531dcdc9916b2e7fe217c494202a9ad6e858f0f3bc54666c0b826cb08f5a0af

          • C:\Windows\SysWOW64\hfnapi.dll

            Filesize

            106KB

            MD5

            a72448ef645d2afaee41ebb4e8a36366

            SHA1

            401a30e11dc568cef158f2c523dd366df9ef3311

            SHA256

            d097bcae473e05a2e664be449cfbde155556995c63097a94f39019500004b069

            SHA512

            9520d924a9be9bf186eab5fc4cda0087b64bd5e937030aa272e2661c1b272cbf5531dcdc9916b2e7fe217c494202a9ad6e858f0f3bc54666c0b826cb08f5a0af

          • C:\Windows\SysWOW64\hfnapi.dll

            Filesize

            106KB

            MD5

            a72448ef645d2afaee41ebb4e8a36366

            SHA1

            401a30e11dc568cef158f2c523dd366df9ef3311

            SHA256

            d097bcae473e05a2e664be449cfbde155556995c63097a94f39019500004b069

            SHA512

            9520d924a9be9bf186eab5fc4cda0087b64bd5e937030aa272e2661c1b272cbf5531dcdc9916b2e7fe217c494202a9ad6e858f0f3bc54666c0b826cb08f5a0af

          • C:\Windows\SysWOW64\hfnapi.dll

            Filesize

            106KB

            MD5

            a72448ef645d2afaee41ebb4e8a36366

            SHA1

            401a30e11dc568cef158f2c523dd366df9ef3311

            SHA256

            d097bcae473e05a2e664be449cfbde155556995c63097a94f39019500004b069

            SHA512

            9520d924a9be9bf186eab5fc4cda0087b64bd5e937030aa272e2661c1b272cbf5531dcdc9916b2e7fe217c494202a9ad6e858f0f3bc54666c0b826cb08f5a0af

          • C:\Windows\SysWOW64\hfpapi.dll

            Filesize

            244KB

            MD5

            dd6aefaccd01141fb206779cb66c9621

            SHA1

            95b66dded3e42c160860c43ca318bb8a267e133f

            SHA256

            9890e384b422af3828dac0e54574321ef6231d935d5f24862405292f810d37ed

            SHA512

            65c047d2aa7b14e26f3ea74bc5d79b3535b25dab94223b041568cc9c9e4e51cbbe7bf61885011642f786a4a20a88ba26488d153206deea06f12616675ade3b9d

          • C:\Windows\SysWOW64\hfpapi.dll

            Filesize

            244KB

            MD5

            dd6aefaccd01141fb206779cb66c9621

            SHA1

            95b66dded3e42c160860c43ca318bb8a267e133f

            SHA256

            9890e384b422af3828dac0e54574321ef6231d935d5f24862405292f810d37ed

            SHA512

            65c047d2aa7b14e26f3ea74bc5d79b3535b25dab94223b041568cc9c9e4e51cbbe7bf61885011642f786a4a20a88ba26488d153206deea06f12616675ade3b9d

          • C:\Windows\SysWOW64\hfpapi.dll

            Filesize

            244KB

            MD5

            dd6aefaccd01141fb206779cb66c9621

            SHA1

            95b66dded3e42c160860c43ca318bb8a267e133f

            SHA256

            9890e384b422af3828dac0e54574321ef6231d935d5f24862405292f810d37ed

            SHA512

            65c047d2aa7b14e26f3ea74bc5d79b3535b25dab94223b041568cc9c9e4e51cbbe7bf61885011642f786a4a20a88ba26488d153206deea06f12616675ade3b9d

          • C:\Windows\SysWOW64\installd.exe

            Filesize

            108KB

            MD5

            aeee4e21ae322ae2b7c7dc035e68fcc8

            SHA1

            e0a89dcc8404b25082ed07aa645ba576cf4970a6

            SHA256

            8c4d7fe0dc72c53bf11c25f4c163c945efa3389811a7936f01b7b20bd14abf68

            SHA512

            b85ebdfdf2decce9231a2d47be29a7206c8eb4d8a4101ac86608ac7656cc329b259fffd58098420fa64b5e9555169d2726838e0146d2ec99768f04b6f15ba655

          • C:\Windows\SysWOW64\installd.exe

            Filesize

            108KB

            MD5

            aeee4e21ae322ae2b7c7dc035e68fcc8

            SHA1

            e0a89dcc8404b25082ed07aa645ba576cf4970a6

            SHA256

            8c4d7fe0dc72c53bf11c25f4c163c945efa3389811a7936f01b7b20bd14abf68

            SHA512

            b85ebdfdf2decce9231a2d47be29a7206c8eb4d8a4101ac86608ac7656cc329b259fffd58098420fa64b5e9555169d2726838e0146d2ec99768f04b6f15ba655

          • C:\Windows\SysWOW64\nethtsrv.exe

            Filesize

            176KB

            MD5

            304e5bc454b506592e58f0d386295b32

            SHA1

            1cf3c8b97e0da98d6999cb5d72b5b37ba06ec4e9

            SHA256

            6057e3059a473c72c17a85938b3c75f09c2d2727a2b5331ba5836c8419548d1c

            SHA512

            e91594d23f45db51329ad07a014c0eb3b02ab36e8e430a91ea8d00dd303683571363750beea41f07249b686e9a85e737a4b538fad0d4297a99f1b60c44c1ac5e

          • C:\Windows\SysWOW64\nethtsrv.exe

            Filesize

            176KB

            MD5

            304e5bc454b506592e58f0d386295b32

            SHA1

            1cf3c8b97e0da98d6999cb5d72b5b37ba06ec4e9

            SHA256

            6057e3059a473c72c17a85938b3c75f09c2d2727a2b5331ba5836c8419548d1c

            SHA512

            e91594d23f45db51329ad07a014c0eb3b02ab36e8e430a91ea8d00dd303683571363750beea41f07249b686e9a85e737a4b538fad0d4297a99f1b60c44c1ac5e

          • C:\Windows\SysWOW64\nethtsrv.exe

            Filesize

            176KB

            MD5

            304e5bc454b506592e58f0d386295b32

            SHA1

            1cf3c8b97e0da98d6999cb5d72b5b37ba06ec4e9

            SHA256

            6057e3059a473c72c17a85938b3c75f09c2d2727a2b5331ba5836c8419548d1c

            SHA512

            e91594d23f45db51329ad07a014c0eb3b02ab36e8e430a91ea8d00dd303683571363750beea41f07249b686e9a85e737a4b538fad0d4297a99f1b60c44c1ac5e

          • C:\Windows\SysWOW64\netupdsrv.exe

            Filesize

            158KB

            MD5

            32259aa3f53dc60df2ff186fb2f1acf8

            SHA1

            6d1a48f2345dad209c41f7dad721f90050e8918f

            SHA256

            2d40458bda18b91afd8c8cf6787dfc2b78abe619c550db2b4718c141421535e1

            SHA512

            0232cac31361c6cd82bb1bbe6de9278822c3e9cba0b2c4acd505f54597f044244c821420e7036bf4041d49912a2f8daac35e47425f9b4855f88a99d0d01ac3be

          • C:\Windows\SysWOW64\netupdsrv.exe

            Filesize

            158KB

            MD5

            32259aa3f53dc60df2ff186fb2f1acf8

            SHA1

            6d1a48f2345dad209c41f7dad721f90050e8918f

            SHA256

            2d40458bda18b91afd8c8cf6787dfc2b78abe619c550db2b4718c141421535e1

            SHA512

            0232cac31361c6cd82bb1bbe6de9278822c3e9cba0b2c4acd505f54597f044244c821420e7036bf4041d49912a2f8daac35e47425f9b4855f88a99d0d01ac3be

          • C:\Windows\SysWOW64\netupdsrv.exe

            Filesize

            158KB

            MD5

            32259aa3f53dc60df2ff186fb2f1acf8

            SHA1

            6d1a48f2345dad209c41f7dad721f90050e8918f

            SHA256

            2d40458bda18b91afd8c8cf6787dfc2b78abe619c550db2b4718c141421535e1

            SHA512

            0232cac31361c6cd82bb1bbe6de9278822c3e9cba0b2c4acd505f54597f044244c821420e7036bf4041d49912a2f8daac35e47425f9b4855f88a99d0d01ac3be

          • memory/544-141-0x0000000000000000-mapping.dmp

          • memory/1004-140-0x0000000000000000-mapping.dmp

          • memory/1228-136-0x0000000000000000-mapping.dmp

          • memory/2452-147-0x0000000000000000-mapping.dmp

          • memory/2864-142-0x0000000000000000-mapping.dmp

          • memory/2952-137-0x0000000000000000-mapping.dmp

          • memory/3328-165-0x0000000000000000-mapping.dmp

          • memory/4228-153-0x0000000000000000-mapping.dmp

          • memory/4424-158-0x0000000000000000-mapping.dmp

          • memory/4684-132-0x0000000000360000-0x00000000007BE000-memory.dmp

            Filesize

            4.4MB

          • memory/4684-168-0x0000000000360000-0x00000000007BE000-memory.dmp

            Filesize

            4.4MB

          • memory/4764-166-0x0000000000000000-mapping.dmp

          • memory/5028-159-0x0000000000000000-mapping.dmp