Analysis

  • max time kernel
    46s
  • max time network
    52s
  • platform
    windows7_x64
  • resource
    win7-20220901-en
  • resource tags

    arch:x64arch:x86image:win7-20220901-enlocale:en-usos:windows7-x64system
  • submitted
    23-11-2022 10:33

General

  • Target

    128ba7e074af0569c803a552f8928cc8f12eb2fbdc6b3bdd672be627d6e5225f.exe

  • Size

    603KB

  • MD5

    dee3d98911243156e3ef048745640a50

  • SHA1

    8452f18ae85ef7c62a110adf3bc79e2c2fe4bb9a

  • SHA256

    128ba7e074af0569c803a552f8928cc8f12eb2fbdc6b3bdd672be627d6e5225f

  • SHA512

    f64ba78b2f754b9e3c5960c307209914ea7bd8203cd513a9ea842c184fbd8994e90e63d2ba070f7669d681005ef65ea3979bcc750cb6fd3b4f5324afbbbd7270

  • SSDEEP

    12288:uIny5DYTmIvRGzj/D4tNFPMUM4DzrY9fdTTczhckcsJ75YfZ+:wUTmMRi/DB3czS95U

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\128ba7e074af0569c803a552f8928cc8f12eb2fbdc6b3bdd672be627d6e5225f.exe
    "C:\Users\Admin\AppData\Local\Temp\128ba7e074af0569c803a552f8928cc8f12eb2fbdc6b3bdd672be627d6e5225f.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:1204
    • C:\Windows\SysWOW64\net.exe
      net stop nethttpservice
      2⤵
      • Suspicious use of WriteProcessMemory
      PID:1088
      • C:\Windows\SysWOW64\net1.exe
        C:\Windows\system32\net1 stop nethttpservice
        3⤵
          PID:1964
      • C:\Windows\SysWOW64\net.exe
        net stop serviceupdater
        2⤵
        • Suspicious use of WriteProcessMemory
        PID:580
        • C:\Windows\SysWOW64\net1.exe
          C:\Windows\system32\net1 stop serviceupdater
          3⤵
            PID:1520
        • C:\Windows\SysWOW64\installd.exe
          "C:\Windows\system32\installd.exe" nethfdrv
          2⤵
          • Executes dropped EXE
          • Loads dropped DLL
          PID:596
        • C:\Windows\SysWOW64\nethtsrv.exe
          "C:\Windows\system32\nethtsrv.exe" -nfdi
          2⤵
          • Executes dropped EXE
          • Loads dropped DLL
          PID:1672
        • C:\Windows\SysWOW64\netupdsrv.exe
          "C:\Windows\system32\netupdsrv.exe" -nfdi
          2⤵
          • Executes dropped EXE
          PID:304
        • C:\Windows\SysWOW64\net.exe
          net start nethttpservice
          2⤵
          • Suspicious use of WriteProcessMemory
          PID:1644
          • C:\Windows\SysWOW64\net1.exe
            C:\Windows\system32\net1 start nethttpservice
            3⤵
              PID:1996
          • C:\Windows\SysWOW64\net.exe
            net start serviceupdater
            2⤵
            • Suspicious use of WriteProcessMemory
            PID:1368
            • C:\Windows\SysWOW64\net1.exe
              C:\Windows\system32\net1 start serviceupdater
              3⤵
                PID:340
          • C:\Windows\SysWOW64\nethtsrv.exe
            C:\Windows\SysWOW64\nethtsrv.exe
            1⤵
            • Executes dropped EXE
            • Loads dropped DLL
            • Suspicious use of AdjustPrivilegeToken
            PID:2024
          • C:\Windows\SysWOW64\netupdsrv.exe
            C:\Windows\SysWOW64\netupdsrv.exe
            1⤵
            • Executes dropped EXE
            PID:1692

          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

            e06a05f278ee52f418a6f627044626ed

            SHA1

            b1fc93daa0770ac3521312d945c1917c3f0a5fda

            SHA256

            eeae69be65419b7a3d49764e679dfb3dc52e0d8036e7dff70fb27471846d13bb

            SHA512

            54ca7e958f646fbff5374d2aecf1a83af59e9769018b2d3a10c7dfe5f3c409dfdc9063b953cbeec5b4df1b2b8e6ba519f6e82be89b1af7a4429a50573f335d20

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

            244KB

            MD5

            6086945e32e54dca07fdb62ca39418ee

            SHA1

            9a6d9c88e66ef2773150d5baced5c74827255550

            SHA256

            418e7bb114fdce4d3c4ddb446ede85193dc1c27dfb5aff91a4e04cd8dc50b470

            SHA512

            de1d2f0ae114b977ab9dc3ede55038f3ac5fb582fe2cdb4a7727945b38c0f32875822c473a472202b771b5cdd828047bd6062816cdc1b9b83893638177b38882

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

            108KB

            MD5

            db847de2994f483e233e20100f5ffda5

            SHA1

            0270335f2e098ab6038a4935fb4c6cccc0ac4b11

            SHA256

            166ae491801eb055583aa8ec76f3d9f40e52dd8e89f39a46b478a87d925984c8

            SHA512

            9635a89cd0cadf12ab0221a99c71abae25665d341a9ed38e8446d19d9a37d4115bc9408cc934a486ee4f39b7e67537e80043e3d208f43cd3709619f4755cd2dc

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

            176KB

            MD5

            f3a0cfbd31c148bae9b1386237f8bfa9

            SHA1

            e239108b4d5bf79a7ac04c85156c45b6127a8fa6

            SHA256

            0b1d1ff7c9571b97ded7bd9ed0d757dec723ac6c76c0802e267b63966389fab1

            SHA512

            4154e3e37d75baa5ea90819faa56600a1f68f83df1826e99dea1e2e58c4f931f20daab5cc3c27d7bff799464623d50fdb540f98af36e418d50ade6a032c58826

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

            176KB

            MD5

            f3a0cfbd31c148bae9b1386237f8bfa9

            SHA1

            e239108b4d5bf79a7ac04c85156c45b6127a8fa6

            SHA256

            0b1d1ff7c9571b97ded7bd9ed0d757dec723ac6c76c0802e267b63966389fab1

            SHA512

            4154e3e37d75baa5ea90819faa56600a1f68f83df1826e99dea1e2e58c4f931f20daab5cc3c27d7bff799464623d50fdb540f98af36e418d50ade6a032c58826

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

            159KB

            MD5

            8de33eb231338513435af1acce857b49

            SHA1

            67cfdbc13bcefe8d9a74b0f503bba57b92863144

            SHA256

            0f62c1c37e267a2b9df42f259490f8f3d6b5c1734091e2eae60f5f6fdc9f3c17

            SHA512

            6b4a8d21c3661fc8a65d11420cd2bccc53f9b3b88dd7e1899d366e0023d6e66614b3311e2cfb6c60fe6bf0b517c98e1bb29dda29b74bbfb0b6c4518c89851ce2

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

            159KB

            MD5

            8de33eb231338513435af1acce857b49

            SHA1

            67cfdbc13bcefe8d9a74b0f503bba57b92863144

            SHA256

            0f62c1c37e267a2b9df42f259490f8f3d6b5c1734091e2eae60f5f6fdc9f3c17

            SHA512

            6b4a8d21c3661fc8a65d11420cd2bccc53f9b3b88dd7e1899d366e0023d6e66614b3311e2cfb6c60fe6bf0b517c98e1bb29dda29b74bbfb0b6c4518c89851ce2

          • \Users\Admin\AppData\Local\Temp\nst28A9.tmp\System.dll
            Filesize

            11KB

            MD5

            c17103ae9072a06da581dec998343fc1

            SHA1

            b72148c6bdfaada8b8c3f950e610ee7cf1da1f8d

            SHA256

            dc58d8ad81cacb0c1ed72e33bff8f23ea40b5252b5bb55d393a0903e6819ae2f

            SHA512

            d32a71aaef18e993f28096d536e41c4d016850721b31171513ce28bbd805a54fd290b7c3e9d935f72e676a1acfb4f0dcc89d95040a0dd29f2b6975855c18986f

          • \Users\Admin\AppData\Local\Temp\nst28A9.tmp\nsExec.dll
            Filesize

            6KB

            MD5

            acc2b699edfea5bf5aae45aba3a41e96

            SHA1

            d2accf4d494e43ceb2cff69abe4dd17147d29cc2

            SHA256

            168a974eaa3f588d759db3f47c1a9fdc3494ba1fa1a73a84e5e3b2a4d58abd7e

            SHA512

            e29ea10ada98c71a18273b04f44f385b120d4e8473e441ce5748cfa44a23648814f2656f429b85440157988c88de776c6ac008dc38bf09cbb746c230a46c69fe

          • \Users\Admin\AppData\Local\Temp\nst28A9.tmp\nsExec.dll
            Filesize

            6KB

            MD5

            acc2b699edfea5bf5aae45aba3a41e96

            SHA1

            d2accf4d494e43ceb2cff69abe4dd17147d29cc2

            SHA256

            168a974eaa3f588d759db3f47c1a9fdc3494ba1fa1a73a84e5e3b2a4d58abd7e

            SHA512

            e29ea10ada98c71a18273b04f44f385b120d4e8473e441ce5748cfa44a23648814f2656f429b85440157988c88de776c6ac008dc38bf09cbb746c230a46c69fe

          • \Users\Admin\AppData\Local\Temp\nst28A9.tmp\nsExec.dll
            Filesize

            6KB

            MD5

            acc2b699edfea5bf5aae45aba3a41e96

            SHA1

            d2accf4d494e43ceb2cff69abe4dd17147d29cc2

            SHA256

            168a974eaa3f588d759db3f47c1a9fdc3494ba1fa1a73a84e5e3b2a4d58abd7e

            SHA512

            e29ea10ada98c71a18273b04f44f385b120d4e8473e441ce5748cfa44a23648814f2656f429b85440157988c88de776c6ac008dc38bf09cbb746c230a46c69fe

          • \Users\Admin\AppData\Local\Temp\nst28A9.tmp\nsExec.dll
            Filesize

            6KB

            MD5

            acc2b699edfea5bf5aae45aba3a41e96

            SHA1

            d2accf4d494e43ceb2cff69abe4dd17147d29cc2

            SHA256

            168a974eaa3f588d759db3f47c1a9fdc3494ba1fa1a73a84e5e3b2a4d58abd7e

            SHA512

            e29ea10ada98c71a18273b04f44f385b120d4e8473e441ce5748cfa44a23648814f2656f429b85440157988c88de776c6ac008dc38bf09cbb746c230a46c69fe

          • \Windows\SysWOW64\hfnapi.dll
            Filesize

            106KB

            MD5

            e06a05f278ee52f418a6f627044626ed

            SHA1

            b1fc93daa0770ac3521312d945c1917c3f0a5fda

            SHA256

            eeae69be65419b7a3d49764e679dfb3dc52e0d8036e7dff70fb27471846d13bb

            SHA512

            54ca7e958f646fbff5374d2aecf1a83af59e9769018b2d3a10c7dfe5f3c409dfdc9063b953cbeec5b4df1b2b8e6ba519f6e82be89b1af7a4429a50573f335d20

          • \Windows\SysWOW64\hfnapi.dll
            Filesize

            106KB

            MD5

            e06a05f278ee52f418a6f627044626ed

            SHA1

            b1fc93daa0770ac3521312d945c1917c3f0a5fda

            SHA256

            eeae69be65419b7a3d49764e679dfb3dc52e0d8036e7dff70fb27471846d13bb

            SHA512

            54ca7e958f646fbff5374d2aecf1a83af59e9769018b2d3a10c7dfe5f3c409dfdc9063b953cbeec5b4df1b2b8e6ba519f6e82be89b1af7a4429a50573f335d20

          • \Windows\SysWOW64\hfnapi.dll
            Filesize

            106KB

            MD5

            e06a05f278ee52f418a6f627044626ed

            SHA1

            b1fc93daa0770ac3521312d945c1917c3f0a5fda

            SHA256

            eeae69be65419b7a3d49764e679dfb3dc52e0d8036e7dff70fb27471846d13bb

            SHA512

            54ca7e958f646fbff5374d2aecf1a83af59e9769018b2d3a10c7dfe5f3c409dfdc9063b953cbeec5b4df1b2b8e6ba519f6e82be89b1af7a4429a50573f335d20

          • \Windows\SysWOW64\hfpapi.dll
            Filesize

            244KB

            MD5

            6086945e32e54dca07fdb62ca39418ee

            SHA1

            9a6d9c88e66ef2773150d5baced5c74827255550

            SHA256

            418e7bb114fdce4d3c4ddb446ede85193dc1c27dfb5aff91a4e04cd8dc50b470

            SHA512

            de1d2f0ae114b977ab9dc3ede55038f3ac5fb582fe2cdb4a7727945b38c0f32875822c473a472202b771b5cdd828047bd6062816cdc1b9b83893638177b38882

          • \Windows\SysWOW64\hfpapi.dll
            Filesize

            244KB

            MD5

            6086945e32e54dca07fdb62ca39418ee

            SHA1

            9a6d9c88e66ef2773150d5baced5c74827255550

            SHA256

            418e7bb114fdce4d3c4ddb446ede85193dc1c27dfb5aff91a4e04cd8dc50b470

            SHA512

            de1d2f0ae114b977ab9dc3ede55038f3ac5fb582fe2cdb4a7727945b38c0f32875822c473a472202b771b5cdd828047bd6062816cdc1b9b83893638177b38882

          • \Windows\SysWOW64\installd.exe
            Filesize

            108KB

            MD5

            db847de2994f483e233e20100f5ffda5

            SHA1

            0270335f2e098ab6038a4935fb4c6cccc0ac4b11

            SHA256

            166ae491801eb055583aa8ec76f3d9f40e52dd8e89f39a46b478a87d925984c8

            SHA512

            9635a89cd0cadf12ab0221a99c71abae25665d341a9ed38e8446d19d9a37d4115bc9408cc934a486ee4f39b7e67537e80043e3d208f43cd3709619f4755cd2dc

          • \Windows\SysWOW64\nethtsrv.exe
            Filesize

            176KB

            MD5

            f3a0cfbd31c148bae9b1386237f8bfa9

            SHA1

            e239108b4d5bf79a7ac04c85156c45b6127a8fa6

            SHA256

            0b1d1ff7c9571b97ded7bd9ed0d757dec723ac6c76c0802e267b63966389fab1

            SHA512

            4154e3e37d75baa5ea90819faa56600a1f68f83df1826e99dea1e2e58c4f931f20daab5cc3c27d7bff799464623d50fdb540f98af36e418d50ade6a032c58826

          • \Windows\SysWOW64\netupdsrv.exe
            Filesize

            159KB

            MD5

            8de33eb231338513435af1acce857b49

            SHA1

            67cfdbc13bcefe8d9a74b0f503bba57b92863144

            SHA256

            0f62c1c37e267a2b9df42f259490f8f3d6b5c1734091e2eae60f5f6fdc9f3c17

            SHA512

            6b4a8d21c3661fc8a65d11420cd2bccc53f9b3b88dd7e1899d366e0023d6e66614b3311e2cfb6c60fe6bf0b517c98e1bb29dda29b74bbfb0b6c4518c89851ce2

          • memory/304-76-0x0000000000000000-mapping.dmp
          • memory/340-87-0x0000000000000000-mapping.dmp
          • memory/580-61-0x0000000000000000-mapping.dmp
          • memory/596-64-0x0000000000000000-mapping.dmp
          • memory/1088-57-0x0000000000000000-mapping.dmp
          • memory/1204-54-0x0000000074DE1000-0x0000000074DE3000-memory.dmp
            Filesize

            8KB

          • memory/1204-59-0x0000000000360000-0x00000000007BE000-memory.dmp
            Filesize

            4.4MB

          • memory/1204-90-0x0000000000360000-0x00000000007BE000-memory.dmp
            Filesize

            4.4MB

          • memory/1368-86-0x0000000000000000-mapping.dmp
          • memory/1520-62-0x0000000000000000-mapping.dmp
          • memory/1644-80-0x0000000000000000-mapping.dmp
          • memory/1672-70-0x0000000000000000-mapping.dmp
          • memory/1964-58-0x0000000000000000-mapping.dmp
          • memory/1996-81-0x0000000000000000-mapping.dmp