Analysis

  • max time kernel
    75s
  • max time network
    34s
  • platform
    windows7_x64
  • resource
    win7-20221111-en
  • resource tags

    arch:x64arch:x86image:win7-20221111-enlocale:en-usos:windows7-x64system
  • submitted
    23-11-2022 10:07

General

  • Target

    f64516ea226ba12f75543914d94d380d2202b7ff2a2845dfb8ed7de6f58f0343.exe

  • Size

    602KB

  • MD5

    467ac2e4cbeaec0a16b69bc8fa15f2d4

  • SHA1

    4170417c19c6d01bd5d193ed56a118eb1e9b832e

  • SHA256

    f64516ea226ba12f75543914d94d380d2202b7ff2a2845dfb8ed7de6f58f0343

  • SHA512

    3906dc4fd6084ca734c9860793a5d5b0143c1845c0c73586668e19aed1a0bae2f614ddfdfa61227b7ca3a517348e11ec3195bb524036516f8a0898191ccf5822

  • SSDEEP

    12288:iIny5DYTW/6nH0oprFFyzdjanIyOF9+7xCpGT0Ic:EUTWCH09anuF9+7mGQB

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\f64516ea226ba12f75543914d94d380d2202b7ff2a2845dfb8ed7de6f58f0343.exe
    "C:\Users\Admin\AppData\Local\Temp\f64516ea226ba12f75543914d94d380d2202b7ff2a2845dfb8ed7de6f58f0343.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:1728
    • C:\Windows\SysWOW64\net.exe
      net stop nethttpservice
      2⤵
      • Suspicious use of WriteProcessMemory
      PID:1300
      • C:\Windows\SysWOW64\net1.exe
        C:\Windows\system32\net1 stop nethttpservice
        3⤵
          PID:1172
      • C:\Windows\SysWOW64\net.exe
        net stop serviceupdater
        2⤵
        • Suspicious use of WriteProcessMemory
        PID:772
        • C:\Windows\SysWOW64\net1.exe
          C:\Windows\system32\net1 stop serviceupdater
          3⤵
            PID:572
        • C:\Windows\SysWOW64\installd.exe
          "C:\Windows\system32\installd.exe" nethfdrv
          2⤵
          • Executes dropped EXE
          • Loads dropped DLL
          PID:268
        • C:\Windows\SysWOW64\nethtsrv.exe
          "C:\Windows\system32\nethtsrv.exe" -nfdi
          2⤵
          • Executes dropped EXE
          • Loads dropped DLL
          PID:608
        • C:\Windows\SysWOW64\netupdsrv.exe
          "C:\Windows\system32\netupdsrv.exe" -nfdi
          2⤵
          • Executes dropped EXE
          PID:324
        • C:\Windows\SysWOW64\net.exe
          net start nethttpservice
          2⤵
          • Suspicious use of WriteProcessMemory
          PID:1916
          • C:\Windows\SysWOW64\net1.exe
            C:\Windows\system32\net1 start nethttpservice
            3⤵
              PID:1060
          • C:\Windows\SysWOW64\net.exe
            net start serviceupdater
            2⤵
            • Suspicious use of WriteProcessMemory
            PID:1564
            • C:\Windows\SysWOW64\net1.exe
              C:\Windows\system32\net1 start serviceupdater
              3⤵
                PID:1684
          • C:\Windows\SysWOW64\nethtsrv.exe
            C:\Windows\SysWOW64\nethtsrv.exe
            1⤵
            • Executes dropped EXE
            • Loads dropped DLL
            • Suspicious use of AdjustPrivilegeToken
            PID:432
          • C:\Windows\SysWOW64\netupdsrv.exe
            C:\Windows\SysWOW64\netupdsrv.exe
            1⤵
            • Executes dropped EXE
            PID:1544

          Network

          MITRE ATT&CK Enterprise v6

          Replay Monitor

          Loading Replay Monitor...

          Downloads

          • C:\Windows\SysWOW64\hfnapi.dll

            Filesize

            106KB

            MD5

            262c9e44dd2c722673afea2ff62a347b

            SHA1

            05c5c1aed969f6dc98fe77ee9433e378347b24c9

            SHA256

            b55dd7c519cb6e20c0aac096fd73107b0d9c31998cc7972aaea53edf65457a42

            SHA512

            b342f8c71c985a260599d0cf2f40782c68541f7af14978e72daa6d248a62cd12cee7fa356d1870db4e13de9db993f8d140187132cb180494542f231898a8816b

          • C:\Windows\SysWOW64\hfpapi.dll

            Filesize

            241KB

            MD5

            3e4e5642e0bebc494dd712b88241a7e3

            SHA1

            2a14741eb6852ad028ae8ced710b006d267ced48

            SHA256

            de0c863bf485e23ac8eacfa027212bf42c1d2a42b56fd05703deddcd1e2fccc1

            SHA512

            106d08069056dc7d3fc6aaf52e65ed9b0eaedf63d48024e3bac6bd96c5405893356ee24cf494188035281037353baab8bccd2604423ab5143beda1a3aad1f9ca

          • C:\Windows\SysWOW64\installd.exe

            Filesize

            108KB

            MD5

            b90f81e4e6eabecbce24d15ae65a6ebb

            SHA1

            cb99bc11f565de5149e93ff5d22a7bada1254659

            SHA256

            20d722d5ed19d6d98c367462b54b1a1c45749df6d88016e3ac9f93652fbe38fc

            SHA512

            a632796f5c1f82d5d9481b7b7ad113b0f463841da9e1d444b3af2d8c32945ef5f2148023237d9c9c92d10aed5f7e17d58fce2bbf712e5f9dfedd27bbbd8b9ab0

          • C:\Windows\SysWOW64\nethtsrv.exe

            Filesize

            176KB

            MD5

            7fcfb54f25aafd94f74430b0765ff667

            SHA1

            1abf5e9ba4f63afd9c77b4773c5cc5a03cd3951e

            SHA256

            58c25cb72773509b591e4200f0c85b6660dc8c4dddcdc1e8431fa6ba04718490

            SHA512

            aecf014001a1401766d65e3b3a6de9f1313d2c275b439ead03789449bd5c2ea21f53ce62e5a9d3e499f1a026efde96a6b42c34f46571b1cc3a1bb52c8d99619e

          • C:\Windows\SysWOW64\nethtsrv.exe

            Filesize

            176KB

            MD5

            7fcfb54f25aafd94f74430b0765ff667

            SHA1

            1abf5e9ba4f63afd9c77b4773c5cc5a03cd3951e

            SHA256

            58c25cb72773509b591e4200f0c85b6660dc8c4dddcdc1e8431fa6ba04718490

            SHA512

            aecf014001a1401766d65e3b3a6de9f1313d2c275b439ead03789449bd5c2ea21f53ce62e5a9d3e499f1a026efde96a6b42c34f46571b1cc3a1bb52c8d99619e

          • C:\Windows\SysWOW64\netupdsrv.exe

            Filesize

            158KB

            MD5

            e45fe2ed6671bb32ce3ee0e9939f6746

            SHA1

            539e99037bb573a7a4188bb0601d3860a5ba810d

            SHA256

            7a9a4f1e3e6c31e3bcb6cb79b00ece08d0cd56144054e071dc15896efdc86433

            SHA512

            bb17b88a363b1a04f45989ccb80cd57c62ea8146c34f5e1881733449d9ef3beee80f0b5c338a74d2679d2723ac2c60d11331f289f5e8a71d7da324353223a0fe

          • C:\Windows\SysWOW64\netupdsrv.exe

            Filesize

            158KB

            MD5

            e45fe2ed6671bb32ce3ee0e9939f6746

            SHA1

            539e99037bb573a7a4188bb0601d3860a5ba810d

            SHA256

            7a9a4f1e3e6c31e3bcb6cb79b00ece08d0cd56144054e071dc15896efdc86433

            SHA512

            bb17b88a363b1a04f45989ccb80cd57c62ea8146c34f5e1881733449d9ef3beee80f0b5c338a74d2679d2723ac2c60d11331f289f5e8a71d7da324353223a0fe

          • \Users\Admin\AppData\Local\Temp\nsoBA7C.tmp\System.dll

            Filesize

            11KB

            MD5

            c17103ae9072a06da581dec998343fc1

            SHA1

            b72148c6bdfaada8b8c3f950e610ee7cf1da1f8d

            SHA256

            dc58d8ad81cacb0c1ed72e33bff8f23ea40b5252b5bb55d393a0903e6819ae2f

            SHA512

            d32a71aaef18e993f28096d536e41c4d016850721b31171513ce28bbd805a54fd290b7c3e9d935f72e676a1acfb4f0dcc89d95040a0dd29f2b6975855c18986f

          • \Users\Admin\AppData\Local\Temp\nsoBA7C.tmp\nsExec.dll

            Filesize

            6KB

            MD5

            acc2b699edfea5bf5aae45aba3a41e96

            SHA1

            d2accf4d494e43ceb2cff69abe4dd17147d29cc2

            SHA256

            168a974eaa3f588d759db3f47c1a9fdc3494ba1fa1a73a84e5e3b2a4d58abd7e

            SHA512

            e29ea10ada98c71a18273b04f44f385b120d4e8473e441ce5748cfa44a23648814f2656f429b85440157988c88de776c6ac008dc38bf09cbb746c230a46c69fe

          • \Users\Admin\AppData\Local\Temp\nsoBA7C.tmp\nsExec.dll

            Filesize

            6KB

            MD5

            acc2b699edfea5bf5aae45aba3a41e96

            SHA1

            d2accf4d494e43ceb2cff69abe4dd17147d29cc2

            SHA256

            168a974eaa3f588d759db3f47c1a9fdc3494ba1fa1a73a84e5e3b2a4d58abd7e

            SHA512

            e29ea10ada98c71a18273b04f44f385b120d4e8473e441ce5748cfa44a23648814f2656f429b85440157988c88de776c6ac008dc38bf09cbb746c230a46c69fe

          • \Users\Admin\AppData\Local\Temp\nsoBA7C.tmp\nsExec.dll

            Filesize

            6KB

            MD5

            acc2b699edfea5bf5aae45aba3a41e96

            SHA1

            d2accf4d494e43ceb2cff69abe4dd17147d29cc2

            SHA256

            168a974eaa3f588d759db3f47c1a9fdc3494ba1fa1a73a84e5e3b2a4d58abd7e

            SHA512

            e29ea10ada98c71a18273b04f44f385b120d4e8473e441ce5748cfa44a23648814f2656f429b85440157988c88de776c6ac008dc38bf09cbb746c230a46c69fe

          • \Users\Admin\AppData\Local\Temp\nsoBA7C.tmp\nsExec.dll

            Filesize

            6KB

            MD5

            acc2b699edfea5bf5aae45aba3a41e96

            SHA1

            d2accf4d494e43ceb2cff69abe4dd17147d29cc2

            SHA256

            168a974eaa3f588d759db3f47c1a9fdc3494ba1fa1a73a84e5e3b2a4d58abd7e

            SHA512

            e29ea10ada98c71a18273b04f44f385b120d4e8473e441ce5748cfa44a23648814f2656f429b85440157988c88de776c6ac008dc38bf09cbb746c230a46c69fe

          • \Windows\SysWOW64\hfnapi.dll

            Filesize

            106KB

            MD5

            262c9e44dd2c722673afea2ff62a347b

            SHA1

            05c5c1aed969f6dc98fe77ee9433e378347b24c9

            SHA256

            b55dd7c519cb6e20c0aac096fd73107b0d9c31998cc7972aaea53edf65457a42

            SHA512

            b342f8c71c985a260599d0cf2f40782c68541f7af14978e72daa6d248a62cd12cee7fa356d1870db4e13de9db993f8d140187132cb180494542f231898a8816b

          • \Windows\SysWOW64\hfnapi.dll

            Filesize

            106KB

            MD5

            262c9e44dd2c722673afea2ff62a347b

            SHA1

            05c5c1aed969f6dc98fe77ee9433e378347b24c9

            SHA256

            b55dd7c519cb6e20c0aac096fd73107b0d9c31998cc7972aaea53edf65457a42

            SHA512

            b342f8c71c985a260599d0cf2f40782c68541f7af14978e72daa6d248a62cd12cee7fa356d1870db4e13de9db993f8d140187132cb180494542f231898a8816b

          • \Windows\SysWOW64\hfnapi.dll

            Filesize

            106KB

            MD5

            262c9e44dd2c722673afea2ff62a347b

            SHA1

            05c5c1aed969f6dc98fe77ee9433e378347b24c9

            SHA256

            b55dd7c519cb6e20c0aac096fd73107b0d9c31998cc7972aaea53edf65457a42

            SHA512

            b342f8c71c985a260599d0cf2f40782c68541f7af14978e72daa6d248a62cd12cee7fa356d1870db4e13de9db993f8d140187132cb180494542f231898a8816b

          • \Windows\SysWOW64\hfpapi.dll

            Filesize

            241KB

            MD5

            3e4e5642e0bebc494dd712b88241a7e3

            SHA1

            2a14741eb6852ad028ae8ced710b006d267ced48

            SHA256

            de0c863bf485e23ac8eacfa027212bf42c1d2a42b56fd05703deddcd1e2fccc1

            SHA512

            106d08069056dc7d3fc6aaf52e65ed9b0eaedf63d48024e3bac6bd96c5405893356ee24cf494188035281037353baab8bccd2604423ab5143beda1a3aad1f9ca

          • \Windows\SysWOW64\hfpapi.dll

            Filesize

            241KB

            MD5

            3e4e5642e0bebc494dd712b88241a7e3

            SHA1

            2a14741eb6852ad028ae8ced710b006d267ced48

            SHA256

            de0c863bf485e23ac8eacfa027212bf42c1d2a42b56fd05703deddcd1e2fccc1

            SHA512

            106d08069056dc7d3fc6aaf52e65ed9b0eaedf63d48024e3bac6bd96c5405893356ee24cf494188035281037353baab8bccd2604423ab5143beda1a3aad1f9ca

          • \Windows\SysWOW64\installd.exe

            Filesize

            108KB

            MD5

            b90f81e4e6eabecbce24d15ae65a6ebb

            SHA1

            cb99bc11f565de5149e93ff5d22a7bada1254659

            SHA256

            20d722d5ed19d6d98c367462b54b1a1c45749df6d88016e3ac9f93652fbe38fc

            SHA512

            a632796f5c1f82d5d9481b7b7ad113b0f463841da9e1d444b3af2d8c32945ef5f2148023237d9c9c92d10aed5f7e17d58fce2bbf712e5f9dfedd27bbbd8b9ab0

          • \Windows\SysWOW64\nethtsrv.exe

            Filesize

            176KB

            MD5

            7fcfb54f25aafd94f74430b0765ff667

            SHA1

            1abf5e9ba4f63afd9c77b4773c5cc5a03cd3951e

            SHA256

            58c25cb72773509b591e4200f0c85b6660dc8c4dddcdc1e8431fa6ba04718490

            SHA512

            aecf014001a1401766d65e3b3a6de9f1313d2c275b439ead03789449bd5c2ea21f53ce62e5a9d3e499f1a026efde96a6b42c34f46571b1cc3a1bb52c8d99619e

          • \Windows\SysWOW64\netupdsrv.exe

            Filesize

            158KB

            MD5

            e45fe2ed6671bb32ce3ee0e9939f6746

            SHA1

            539e99037bb573a7a4188bb0601d3860a5ba810d

            SHA256

            7a9a4f1e3e6c31e3bcb6cb79b00ece08d0cd56144054e071dc15896efdc86433

            SHA512

            bb17b88a363b1a04f45989ccb80cd57c62ea8146c34f5e1881733449d9ef3beee80f0b5c338a74d2679d2723ac2c60d11331f289f5e8a71d7da324353223a0fe

          • memory/268-64-0x0000000000000000-mapping.dmp

          • memory/324-76-0x0000000000000000-mapping.dmp

          • memory/572-62-0x0000000000000000-mapping.dmp

          • memory/608-70-0x0000000000000000-mapping.dmp

          • memory/772-61-0x0000000000000000-mapping.dmp

          • memory/1060-81-0x0000000000000000-mapping.dmp

          • memory/1172-59-0x0000000000000000-mapping.dmp

          • memory/1300-57-0x0000000000000000-mapping.dmp

          • memory/1564-87-0x0000000000000000-mapping.dmp

          • memory/1684-88-0x0000000000000000-mapping.dmp

          • memory/1728-54-0x0000000076301000-0x0000000076303000-memory.dmp

            Filesize

            8KB

          • memory/1728-85-0x0000000000360000-0x00000000007BE000-memory.dmp

            Filesize

            4.4MB

          • memory/1728-58-0x0000000000360000-0x00000000007BE000-memory.dmp

            Filesize

            4.4MB

          • memory/1728-91-0x0000000000360000-0x00000000007BE000-memory.dmp

            Filesize

            4.4MB

          • memory/1916-80-0x0000000000000000-mapping.dmp