Analysis

  • max time kernel
    81s
  • max time network
    32s
  • platform
    windows7_x64
  • resource
    win7-20221111-en
  • resource tags

    arch:x64arch:x86image:win7-20221111-enlocale:en-usos:windows7-x64system
  • submitted
    23-11-2022 10:24

General

  • Target

    6ba07d8e7bd120304dab7fffaaeb24726a6313ff5e0f5330a5366fa372cf47ab.exe

  • Size

    603KB

  • MD5

    ffb776789224088a329873fec7afe73b

  • SHA1

    7cdcc561208448274e906fa0a44985de89107846

  • SHA256

    6ba07d8e7bd120304dab7fffaaeb24726a6313ff5e0f5330a5366fa372cf47ab

  • SHA512

    e484a4440cc1e2ad6b2c682ce867f9ee69156364ffe57d578b5979523152dc37ad10f0c05d07aaa6aad82df5368eddc926ce94351fcab0fe059bd2a01f5d3872

  • SSDEEP

    12288:pIny5DYTfI81dHDrEJlrb23wl+c93/6/DzNdOsuCl5/ur:FUTfvbIJowYGy/POZCl5/u

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\6ba07d8e7bd120304dab7fffaaeb24726a6313ff5e0f5330a5366fa372cf47ab.exe
    "C:\Users\Admin\AppData\Local\Temp\6ba07d8e7bd120304dab7fffaaeb24726a6313ff5e0f5330a5366fa372cf47ab.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:1784
    • C:\Windows\SysWOW64\net.exe
      net stop nethttpservice
      2⤵
      • Suspicious use of WriteProcessMemory
      PID:872
      • C:\Windows\SysWOW64\net1.exe
        C:\Windows\system32\net1 stop nethttpservice
        3⤵
          PID:1164
      • 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:1280
        • C:\Windows\SysWOW64\installd.exe
          "C:\Windows\system32\installd.exe" nethfdrv
          2⤵
          • Executes dropped EXE
          • Loads dropped DLL
          PID:1688
        • C:\Windows\SysWOW64\nethtsrv.exe
          "C:\Windows\system32\nethtsrv.exe" -nfdi
          2⤵
          • Executes dropped EXE
          • Loads dropped DLL
          PID:1796
        • C:\Windows\SysWOW64\netupdsrv.exe
          "C:\Windows\system32\netupdsrv.exe" -nfdi
          2⤵
          • Executes dropped EXE
          PID:892
        • C:\Windows\SysWOW64\net.exe
          net start nethttpservice
          2⤵
          • Suspicious use of WriteProcessMemory
          PID:1732
          • C:\Windows\SysWOW64\net1.exe
            C:\Windows\system32\net1 start nethttpservice
            3⤵
              PID:1556
          • C:\Windows\SysWOW64\net.exe
            net start serviceupdater
            2⤵
            • Suspicious use of WriteProcessMemory
            PID:272
            • C:\Windows\SysWOW64\net1.exe
              C:\Windows\system32\net1 start serviceupdater
              3⤵
                PID:1620
          • C:\Windows\SysWOW64\nethtsrv.exe
            C:\Windows\SysWOW64\nethtsrv.exe
            1⤵
            • Executes dropped EXE
            • Loads dropped DLL
            • Suspicious use of AdjustPrivilegeToken
            PID:1972
          • C:\Windows\SysWOW64\netupdsrv.exe
            C:\Windows\SysWOW64\netupdsrv.exe
            1⤵
            • Executes dropped EXE
            PID:1940

          Network

          MITRE ATT&CK Enterprise v6

          Replay Monitor

          Loading Replay Monitor...

          Downloads

          • C:\Windows\SysWOW64\hfnapi.dll

            Filesize

            106KB

            MD5

            d2074caacfd87bd8760d7d69e93b211c

            SHA1

            f5696ff8052189acabb6e3e16a9df01861b5ccda

            SHA256

            9745fdbad083c48bdd19a1428b4588545ea95517cfee02557a6e4bddb4e73a6b

            SHA512

            e939eeae7f6ec2d3d3be0d70cdf735e576aeae35c8f6c6257d0a6addba43686d33d8d689263adb2a26b8474d7311a07b3b122f34fcec8c60f55a84cc765bd527

          • C:\Windows\SysWOW64\hfpapi.dll

            Filesize

            244KB

            MD5

            9c6bf959821c73929dcbd461775de9eb

            SHA1

            a42b2daa5db0c6a4628a70559578f870cacadf31

            SHA256

            5e2bfa639fd0b8b5e6fd4d21199a75400f27bd11b8680c563bcef540a7891cd7

            SHA512

            e6daaa0ce383b53d01496aa00eebf86463c9d9c65f79ad9159c3c90fbe885fec9408d402118359e909037a17677e0311f1474305bca6c4bc4f3b5ad9e7c70ae7

          • C:\Windows\SysWOW64\installd.exe

            Filesize

            108KB

            MD5

            563453c51775485f786f0f381630806e

            SHA1

            fb6f031cb9da785301ba06144b8c89dee0095c6e

            SHA256

            d8e017e194240b379814940ae6229fc024d3f27659b2571ef2edb187f4d6e889

            SHA512

            8a1fc7bae80948cd30b9d06311c69a8c1a5395e33874127863e1a5af2aee81a78dfbdd6137f40fa80a5a8141a4b66eed8ba8dac35018951c8687dc64593c2970

          • C:\Windows\SysWOW64\nethtsrv.exe

            Filesize

            176KB

            MD5

            78ccd9bf8fb6db2c07e7eeb1e856fc71

            SHA1

            5a4b78f76543b380cb2c07b6490433a550b0481e

            SHA256

            c6c492b4e26eb9a55f9085c69f3ba697be25faa0cd17ca602e980affaf1506bc

            SHA512

            22e645a5ce8eaa970e82dcd2670a1052b2dee626fa382e48eb5e9d21f76878df575a9412442e4044ee986758b1949d44807420527818533b251a241d7cfa4e39

          • C:\Windows\SysWOW64\nethtsrv.exe

            Filesize

            176KB

            MD5

            78ccd9bf8fb6db2c07e7eeb1e856fc71

            SHA1

            5a4b78f76543b380cb2c07b6490433a550b0481e

            SHA256

            c6c492b4e26eb9a55f9085c69f3ba697be25faa0cd17ca602e980affaf1506bc

            SHA512

            22e645a5ce8eaa970e82dcd2670a1052b2dee626fa382e48eb5e9d21f76878df575a9412442e4044ee986758b1949d44807420527818533b251a241d7cfa4e39

          • C:\Windows\SysWOW64\netupdsrv.exe

            Filesize

            158KB

            MD5

            c351bce73509cacd3e398c18f82873d7

            SHA1

            1e45b778038617bc2e078417cf37bf9e9d89a9bd

            SHA256

            a502e77024e9ecd9fa43d95f38f697273abd6bcfbaf3fe31bb6aec133e5d3af4

            SHA512

            ce09394a05d8c34e94064f12f1ff66af2b9844354b78e66db443a46935ab0cf5c972eb53a48396b2e73535d82662f6167fac4fb5147fe0d1bb9ddd950a3eb5de

          • C:\Windows\SysWOW64\netupdsrv.exe

            Filesize

            158KB

            MD5

            c351bce73509cacd3e398c18f82873d7

            SHA1

            1e45b778038617bc2e078417cf37bf9e9d89a9bd

            SHA256

            a502e77024e9ecd9fa43d95f38f697273abd6bcfbaf3fe31bb6aec133e5d3af4

            SHA512

            ce09394a05d8c34e94064f12f1ff66af2b9844354b78e66db443a46935ab0cf5c972eb53a48396b2e73535d82662f6167fac4fb5147fe0d1bb9ddd950a3eb5de

          • \Users\Admin\AppData\Local\Temp\nstB5BB.tmp\System.dll

            Filesize

            11KB

            MD5

            c17103ae9072a06da581dec998343fc1

            SHA1

            b72148c6bdfaada8b8c3f950e610ee7cf1da1f8d

            SHA256

            dc58d8ad81cacb0c1ed72e33bff8f23ea40b5252b5bb55d393a0903e6819ae2f

            SHA512

            d32a71aaef18e993f28096d536e41c4d016850721b31171513ce28bbd805a54fd290b7c3e9d935f72e676a1acfb4f0dcc89d95040a0dd29f2b6975855c18986f

          • \Users\Admin\AppData\Local\Temp\nstB5BB.tmp\nsExec.dll

            Filesize

            6KB

            MD5

            acc2b699edfea5bf5aae45aba3a41e96

            SHA1

            d2accf4d494e43ceb2cff69abe4dd17147d29cc2

            SHA256

            168a974eaa3f588d759db3f47c1a9fdc3494ba1fa1a73a84e5e3b2a4d58abd7e

            SHA512

            e29ea10ada98c71a18273b04f44f385b120d4e8473e441ce5748cfa44a23648814f2656f429b85440157988c88de776c6ac008dc38bf09cbb746c230a46c69fe

          • \Users\Admin\AppData\Local\Temp\nstB5BB.tmp\nsExec.dll

            Filesize

            6KB

            MD5

            acc2b699edfea5bf5aae45aba3a41e96

            SHA1

            d2accf4d494e43ceb2cff69abe4dd17147d29cc2

            SHA256

            168a974eaa3f588d759db3f47c1a9fdc3494ba1fa1a73a84e5e3b2a4d58abd7e

            SHA512

            e29ea10ada98c71a18273b04f44f385b120d4e8473e441ce5748cfa44a23648814f2656f429b85440157988c88de776c6ac008dc38bf09cbb746c230a46c69fe

          • \Users\Admin\AppData\Local\Temp\nstB5BB.tmp\nsExec.dll

            Filesize

            6KB

            MD5

            acc2b699edfea5bf5aae45aba3a41e96

            SHA1

            d2accf4d494e43ceb2cff69abe4dd17147d29cc2

            SHA256

            168a974eaa3f588d759db3f47c1a9fdc3494ba1fa1a73a84e5e3b2a4d58abd7e

            SHA512

            e29ea10ada98c71a18273b04f44f385b120d4e8473e441ce5748cfa44a23648814f2656f429b85440157988c88de776c6ac008dc38bf09cbb746c230a46c69fe

          • \Users\Admin\AppData\Local\Temp\nstB5BB.tmp\nsExec.dll

            Filesize

            6KB

            MD5

            acc2b699edfea5bf5aae45aba3a41e96

            SHA1

            d2accf4d494e43ceb2cff69abe4dd17147d29cc2

            SHA256

            168a974eaa3f588d759db3f47c1a9fdc3494ba1fa1a73a84e5e3b2a4d58abd7e

            SHA512

            e29ea10ada98c71a18273b04f44f385b120d4e8473e441ce5748cfa44a23648814f2656f429b85440157988c88de776c6ac008dc38bf09cbb746c230a46c69fe

          • \Windows\SysWOW64\hfnapi.dll

            Filesize

            106KB

            MD5

            d2074caacfd87bd8760d7d69e93b211c

            SHA1

            f5696ff8052189acabb6e3e16a9df01861b5ccda

            SHA256

            9745fdbad083c48bdd19a1428b4588545ea95517cfee02557a6e4bddb4e73a6b

            SHA512

            e939eeae7f6ec2d3d3be0d70cdf735e576aeae35c8f6c6257d0a6addba43686d33d8d689263adb2a26b8474d7311a07b3b122f34fcec8c60f55a84cc765bd527

          • \Windows\SysWOW64\hfnapi.dll

            Filesize

            106KB

            MD5

            d2074caacfd87bd8760d7d69e93b211c

            SHA1

            f5696ff8052189acabb6e3e16a9df01861b5ccda

            SHA256

            9745fdbad083c48bdd19a1428b4588545ea95517cfee02557a6e4bddb4e73a6b

            SHA512

            e939eeae7f6ec2d3d3be0d70cdf735e576aeae35c8f6c6257d0a6addba43686d33d8d689263adb2a26b8474d7311a07b3b122f34fcec8c60f55a84cc765bd527

          • \Windows\SysWOW64\hfnapi.dll

            Filesize

            106KB

            MD5

            d2074caacfd87bd8760d7d69e93b211c

            SHA1

            f5696ff8052189acabb6e3e16a9df01861b5ccda

            SHA256

            9745fdbad083c48bdd19a1428b4588545ea95517cfee02557a6e4bddb4e73a6b

            SHA512

            e939eeae7f6ec2d3d3be0d70cdf735e576aeae35c8f6c6257d0a6addba43686d33d8d689263adb2a26b8474d7311a07b3b122f34fcec8c60f55a84cc765bd527

          • \Windows\SysWOW64\hfpapi.dll

            Filesize

            244KB

            MD5

            9c6bf959821c73929dcbd461775de9eb

            SHA1

            a42b2daa5db0c6a4628a70559578f870cacadf31

            SHA256

            5e2bfa639fd0b8b5e6fd4d21199a75400f27bd11b8680c563bcef540a7891cd7

            SHA512

            e6daaa0ce383b53d01496aa00eebf86463c9d9c65f79ad9159c3c90fbe885fec9408d402118359e909037a17677e0311f1474305bca6c4bc4f3b5ad9e7c70ae7

          • \Windows\SysWOW64\hfpapi.dll

            Filesize

            244KB

            MD5

            9c6bf959821c73929dcbd461775de9eb

            SHA1

            a42b2daa5db0c6a4628a70559578f870cacadf31

            SHA256

            5e2bfa639fd0b8b5e6fd4d21199a75400f27bd11b8680c563bcef540a7891cd7

            SHA512

            e6daaa0ce383b53d01496aa00eebf86463c9d9c65f79ad9159c3c90fbe885fec9408d402118359e909037a17677e0311f1474305bca6c4bc4f3b5ad9e7c70ae7

          • \Windows\SysWOW64\installd.exe

            Filesize

            108KB

            MD5

            563453c51775485f786f0f381630806e

            SHA1

            fb6f031cb9da785301ba06144b8c89dee0095c6e

            SHA256

            d8e017e194240b379814940ae6229fc024d3f27659b2571ef2edb187f4d6e889

            SHA512

            8a1fc7bae80948cd30b9d06311c69a8c1a5395e33874127863e1a5af2aee81a78dfbdd6137f40fa80a5a8141a4b66eed8ba8dac35018951c8687dc64593c2970

          • \Windows\SysWOW64\nethtsrv.exe

            Filesize

            176KB

            MD5

            78ccd9bf8fb6db2c07e7eeb1e856fc71

            SHA1

            5a4b78f76543b380cb2c07b6490433a550b0481e

            SHA256

            c6c492b4e26eb9a55f9085c69f3ba697be25faa0cd17ca602e980affaf1506bc

            SHA512

            22e645a5ce8eaa970e82dcd2670a1052b2dee626fa382e48eb5e9d21f76878df575a9412442e4044ee986758b1949d44807420527818533b251a241d7cfa4e39

          • \Windows\SysWOW64\netupdsrv.exe

            Filesize

            158KB

            MD5

            c351bce73509cacd3e398c18f82873d7

            SHA1

            1e45b778038617bc2e078417cf37bf9e9d89a9bd

            SHA256

            a502e77024e9ecd9fa43d95f38f697273abd6bcfbaf3fe31bb6aec133e5d3af4

            SHA512

            ce09394a05d8c34e94064f12f1ff66af2b9844354b78e66db443a46935ab0cf5c972eb53a48396b2e73535d82662f6167fac4fb5147fe0d1bb9ddd950a3eb5de

          • memory/272-87-0x0000000000000000-mapping.dmp

          • memory/580-61-0x0000000000000000-mapping.dmp

          • memory/872-57-0x0000000000000000-mapping.dmp

          • memory/892-76-0x0000000000000000-mapping.dmp

          • memory/1164-58-0x0000000000000000-mapping.dmp

          • memory/1280-62-0x0000000000000000-mapping.dmp

          • memory/1556-82-0x0000000000000000-mapping.dmp

          • memory/1620-88-0x0000000000000000-mapping.dmp

          • memory/1688-64-0x0000000000000000-mapping.dmp

          • memory/1732-81-0x0000000000000000-mapping.dmp

          • memory/1784-79-0x0000000000360000-0x00000000007BE000-memory.dmp

            Filesize

            4.4MB

          • memory/1784-54-0x0000000075DA1000-0x0000000075DA3000-memory.dmp

            Filesize

            8KB

          • memory/1784-59-0x0000000000360000-0x00000000007BE000-memory.dmp

            Filesize

            4.4MB

          • memory/1784-91-0x0000000000360000-0x00000000007BE000-memory.dmp

            Filesize

            4.4MB

          • memory/1796-70-0x0000000000000000-mapping.dmp