Analysis

  • max time kernel
    63s
  • max time network
    153s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20220901-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20220901-enlocale:en-usos:windows10-2004-x64system
  • submitted
    23-11-2022 10:15

General

  • Target

    aef1d42adc519caf400a87b85d625365a8140e4ab799972953bc5a160b989c06.exe

  • Size

    602KB

  • MD5

    036e85ae753f315e68054871d06eb81a

  • SHA1

    755194117d605f210c5d2f259f907e601ec03c96

  • SHA256

    aef1d42adc519caf400a87b85d625365a8140e4ab799972953bc5a160b989c06

  • SHA512

    0e8c8ba6d1e93acd2754fc23a6e3c1c4f274346b79d82dc309159064011ebacb08411730229a0a64fbf1cc9759ff3568cf38789f27b4d2b2ce34ef8baad61b9c

  • SSDEEP

    12288:FIny5DYTjmJQQIMY93BTT+BPnFiZzmjGgCsfLzXhpgWh1U0pMYE4pm:xUTjmJA3BTSn0ZXsr20Gcm

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\aef1d42adc519caf400a87b85d625365a8140e4ab799972953bc5a160b989c06.exe
    "C:\Users\Admin\AppData\Local\Temp\aef1d42adc519caf400a87b85d625365a8140e4ab799972953bc5a160b989c06.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:1560
    • C:\Windows\SysWOW64\net.exe
      net stop nethttpservice
      2⤵
      • Suspicious use of WriteProcessMemory
      PID:3684
      • C:\Windows\SysWOW64\net1.exe
        C:\Windows\system32\net1 stop nethttpservice
        3⤵
          PID:4900
      • C:\Windows\SysWOW64\net.exe
        net stop serviceupdater
        2⤵
        • Suspicious use of WriteProcessMemory
        PID:2500
        • C:\Windows\SysWOW64\net1.exe
          C:\Windows\system32\net1 stop serviceupdater
          3⤵
            PID:4592
        • C:\Windows\SysWOW64\installd.exe
          "C:\Windows\system32\installd.exe" nethfdrv
          2⤵
          • Executes dropped EXE
          • Loads dropped DLL
          PID:4460
        • C:\Windows\SysWOW64\nethtsrv.exe
          "C:\Windows\system32\nethtsrv.exe" -nfdi
          2⤵
          • Executes dropped EXE
          • Loads dropped DLL
          PID:4376
        • C:\Windows\SysWOW64\netupdsrv.exe
          "C:\Windows\system32\netupdsrv.exe" -nfdi
          2⤵
          • Executes dropped EXE
          PID:1424
        • C:\Windows\SysWOW64\net.exe
          net start nethttpservice
          2⤵
          • Suspicious use of WriteProcessMemory
          PID:5068
          • C:\Windows\SysWOW64\net1.exe
            C:\Windows\system32\net1 start nethttpservice
            3⤵
              PID:948
          • C:\Windows\SysWOW64\net.exe
            net start serviceupdater
            2⤵
            • Suspicious use of WriteProcessMemory
            PID:4404
            • C:\Windows\SysWOW64\net1.exe
              C:\Windows\system32\net1 start serviceupdater
              3⤵
                PID:1316
          • 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:4464
          • C:\Windows\SysWOW64\netupdsrv.exe
            C:\Windows\SysWOW64\netupdsrv.exe
            1⤵
            • Executes dropped EXE
            PID:1004

          Network

          MITRE ATT&CK Enterprise v6

          Replay Monitor

          Loading Replay Monitor...

          Downloads

          • C:\Users\Admin\AppData\Local\Temp\nsjDE03.tmp\System.dll

            Filesize

            11KB

            MD5

            c17103ae9072a06da581dec998343fc1

            SHA1

            b72148c6bdfaada8b8c3f950e610ee7cf1da1f8d

            SHA256

            dc58d8ad81cacb0c1ed72e33bff8f23ea40b5252b5bb55d393a0903e6819ae2f

            SHA512

            d32a71aaef18e993f28096d536e41c4d016850721b31171513ce28bbd805a54fd290b7c3e9d935f72e676a1acfb4f0dcc89d95040a0dd29f2b6975855c18986f

          • C:\Users\Admin\AppData\Local\Temp\nsjDE03.tmp\nsExec.dll

            Filesize

            6KB

            MD5

            acc2b699edfea5bf5aae45aba3a41e96

            SHA1

            d2accf4d494e43ceb2cff69abe4dd17147d29cc2

            SHA256

            168a974eaa3f588d759db3f47c1a9fdc3494ba1fa1a73a84e5e3b2a4d58abd7e

            SHA512

            e29ea10ada98c71a18273b04f44f385b120d4e8473e441ce5748cfa44a23648814f2656f429b85440157988c88de776c6ac008dc38bf09cbb746c230a46c69fe

          • C:\Users\Admin\AppData\Local\Temp\nsjDE03.tmp\nsExec.dll

            Filesize

            6KB

            MD5

            acc2b699edfea5bf5aae45aba3a41e96

            SHA1

            d2accf4d494e43ceb2cff69abe4dd17147d29cc2

            SHA256

            168a974eaa3f588d759db3f47c1a9fdc3494ba1fa1a73a84e5e3b2a4d58abd7e

            SHA512

            e29ea10ada98c71a18273b04f44f385b120d4e8473e441ce5748cfa44a23648814f2656f429b85440157988c88de776c6ac008dc38bf09cbb746c230a46c69fe

          • C:\Users\Admin\AppData\Local\Temp\nsjDE03.tmp\nsExec.dll

            Filesize

            6KB

            MD5

            acc2b699edfea5bf5aae45aba3a41e96

            SHA1

            d2accf4d494e43ceb2cff69abe4dd17147d29cc2

            SHA256

            168a974eaa3f588d759db3f47c1a9fdc3494ba1fa1a73a84e5e3b2a4d58abd7e

            SHA512

            e29ea10ada98c71a18273b04f44f385b120d4e8473e441ce5748cfa44a23648814f2656f429b85440157988c88de776c6ac008dc38bf09cbb746c230a46c69fe

          • C:\Users\Admin\AppData\Local\Temp\nsjDE03.tmp\nsExec.dll

            Filesize

            6KB

            MD5

            acc2b699edfea5bf5aae45aba3a41e96

            SHA1

            d2accf4d494e43ceb2cff69abe4dd17147d29cc2

            SHA256

            168a974eaa3f588d759db3f47c1a9fdc3494ba1fa1a73a84e5e3b2a4d58abd7e

            SHA512

            e29ea10ada98c71a18273b04f44f385b120d4e8473e441ce5748cfa44a23648814f2656f429b85440157988c88de776c6ac008dc38bf09cbb746c230a46c69fe

          • C:\Users\Admin\AppData\Local\Temp\nsjDE03.tmp\nsExec.dll

            Filesize

            6KB

            MD5

            acc2b699edfea5bf5aae45aba3a41e96

            SHA1

            d2accf4d494e43ceb2cff69abe4dd17147d29cc2

            SHA256

            168a974eaa3f588d759db3f47c1a9fdc3494ba1fa1a73a84e5e3b2a4d58abd7e

            SHA512

            e29ea10ada98c71a18273b04f44f385b120d4e8473e441ce5748cfa44a23648814f2656f429b85440157988c88de776c6ac008dc38bf09cbb746c230a46c69fe

          • C:\Users\Admin\AppData\Local\Temp\nsjDE03.tmp\nsExec.dll

            Filesize

            6KB

            MD5

            acc2b699edfea5bf5aae45aba3a41e96

            SHA1

            d2accf4d494e43ceb2cff69abe4dd17147d29cc2

            SHA256

            168a974eaa3f588d759db3f47c1a9fdc3494ba1fa1a73a84e5e3b2a4d58abd7e

            SHA512

            e29ea10ada98c71a18273b04f44f385b120d4e8473e441ce5748cfa44a23648814f2656f429b85440157988c88de776c6ac008dc38bf09cbb746c230a46c69fe

          • C:\Users\Admin\AppData\Local\Temp\nsjDE03.tmp\nsExec.dll

            Filesize

            6KB

            MD5

            acc2b699edfea5bf5aae45aba3a41e96

            SHA1

            d2accf4d494e43ceb2cff69abe4dd17147d29cc2

            SHA256

            168a974eaa3f588d759db3f47c1a9fdc3494ba1fa1a73a84e5e3b2a4d58abd7e

            SHA512

            e29ea10ada98c71a18273b04f44f385b120d4e8473e441ce5748cfa44a23648814f2656f429b85440157988c88de776c6ac008dc38bf09cbb746c230a46c69fe

          • C:\Users\Admin\AppData\Local\Temp\nsjDE03.tmp\nsExec.dll

            Filesize

            6KB

            MD5

            acc2b699edfea5bf5aae45aba3a41e96

            SHA1

            d2accf4d494e43ceb2cff69abe4dd17147d29cc2

            SHA256

            168a974eaa3f588d759db3f47c1a9fdc3494ba1fa1a73a84e5e3b2a4d58abd7e

            SHA512

            e29ea10ada98c71a18273b04f44f385b120d4e8473e441ce5748cfa44a23648814f2656f429b85440157988c88de776c6ac008dc38bf09cbb746c230a46c69fe

          • C:\Windows\SysWOW64\hfnapi.dll

            Filesize

            106KB

            MD5

            c9db04007f3c1609bcd8e1e482ba54e3

            SHA1

            9bbe8677e10c105340e550ea4a98e10ddcade6d7

            SHA256

            0e9e6b48c93344ceef7a119228f92091c18a001b5bcd1d769659a41873faab8e

            SHA512

            dbbc273fe2a8a73ac9331ea3a3bf145776de294231d2c5274e9b8ecfbc5f439db5a0081be504140dad0319d7f044d937c31671db60cd118c3c47dc98278a1e2d

          • C:\Windows\SysWOW64\hfnapi.dll

            Filesize

            106KB

            MD5

            c9db04007f3c1609bcd8e1e482ba54e3

            SHA1

            9bbe8677e10c105340e550ea4a98e10ddcade6d7

            SHA256

            0e9e6b48c93344ceef7a119228f92091c18a001b5bcd1d769659a41873faab8e

            SHA512

            dbbc273fe2a8a73ac9331ea3a3bf145776de294231d2c5274e9b8ecfbc5f439db5a0081be504140dad0319d7f044d937c31671db60cd118c3c47dc98278a1e2d

          • C:\Windows\SysWOW64\hfnapi.dll

            Filesize

            106KB

            MD5

            c9db04007f3c1609bcd8e1e482ba54e3

            SHA1

            9bbe8677e10c105340e550ea4a98e10ddcade6d7

            SHA256

            0e9e6b48c93344ceef7a119228f92091c18a001b5bcd1d769659a41873faab8e

            SHA512

            dbbc273fe2a8a73ac9331ea3a3bf145776de294231d2c5274e9b8ecfbc5f439db5a0081be504140dad0319d7f044d937c31671db60cd118c3c47dc98278a1e2d

          • C:\Windows\SysWOW64\hfnapi.dll

            Filesize

            106KB

            MD5

            c9db04007f3c1609bcd8e1e482ba54e3

            SHA1

            9bbe8677e10c105340e550ea4a98e10ddcade6d7

            SHA256

            0e9e6b48c93344ceef7a119228f92091c18a001b5bcd1d769659a41873faab8e

            SHA512

            dbbc273fe2a8a73ac9331ea3a3bf145776de294231d2c5274e9b8ecfbc5f439db5a0081be504140dad0319d7f044d937c31671db60cd118c3c47dc98278a1e2d

          • C:\Windows\SysWOW64\hfpapi.dll

            Filesize

            241KB

            MD5

            e2f115e00eb3191bcf73b8ac38f675b5

            SHA1

            07e667bd1dccfad2ac68120d6de4167ea386e263

            SHA256

            00f3e1663c9358f2a8d06819bf3d99a019dadb41f4a1d16069768ee2741f80b4

            SHA512

            3b0c33f1f0298c74288484cba05520e1141c9d0dfe64b39f4ab54f7fc1b27d660bfcc6c5525f9fa40dfaf82f644b12914425507e71a7f873c7679d3b2197c2b1

          • C:\Windows\SysWOW64\hfpapi.dll

            Filesize

            241KB

            MD5

            e2f115e00eb3191bcf73b8ac38f675b5

            SHA1

            07e667bd1dccfad2ac68120d6de4167ea386e263

            SHA256

            00f3e1663c9358f2a8d06819bf3d99a019dadb41f4a1d16069768ee2741f80b4

            SHA512

            3b0c33f1f0298c74288484cba05520e1141c9d0dfe64b39f4ab54f7fc1b27d660bfcc6c5525f9fa40dfaf82f644b12914425507e71a7f873c7679d3b2197c2b1

          • C:\Windows\SysWOW64\hfpapi.dll

            Filesize

            241KB

            MD5

            e2f115e00eb3191bcf73b8ac38f675b5

            SHA1

            07e667bd1dccfad2ac68120d6de4167ea386e263

            SHA256

            00f3e1663c9358f2a8d06819bf3d99a019dadb41f4a1d16069768ee2741f80b4

            SHA512

            3b0c33f1f0298c74288484cba05520e1141c9d0dfe64b39f4ab54f7fc1b27d660bfcc6c5525f9fa40dfaf82f644b12914425507e71a7f873c7679d3b2197c2b1

          • C:\Windows\SysWOW64\installd.exe

            Filesize

            108KB

            MD5

            522a89fd4bf6f57fd55c721c5854819b

            SHA1

            706f1efd1133f3a6644a9149f445424e463f4f2c

            SHA256

            8f248adad6c921b0b6ac79e80d31874183210dedec21dc674e5a01281e136592

            SHA512

            72b6ebae123de6c58504d0ba911f7c2717118c8389735faae2dfd9e96b76b3c0ba5cb68ecdabc5c9a0eb418967633365eb43eeb10fea53deea0a4ce6afae295c

          • C:\Windows\SysWOW64\installd.exe

            Filesize

            108KB

            MD5

            522a89fd4bf6f57fd55c721c5854819b

            SHA1

            706f1efd1133f3a6644a9149f445424e463f4f2c

            SHA256

            8f248adad6c921b0b6ac79e80d31874183210dedec21dc674e5a01281e136592

            SHA512

            72b6ebae123de6c58504d0ba911f7c2717118c8389735faae2dfd9e96b76b3c0ba5cb68ecdabc5c9a0eb418967633365eb43eeb10fea53deea0a4ce6afae295c

          • C:\Windows\SysWOW64\nethtsrv.exe

            Filesize

            176KB

            MD5

            7b18ca5ac499c75aa8e9b2227af70eb5

            SHA1

            6061d609f787849982017a5dc0b833a9172e4bec

            SHA256

            dc2a8957ce32ff1088870c8ea5cd259423b527a36ae8fa358292330891fc0ac9

            SHA512

            3582b4afae3fa14eb3a3e405dd09a3ed0949f696e834c82c70ac77ae08eaccb80d4f0f0330d8bfb13b7edaa662f189ae3e9c656fa88b48475612aa7ceda914e3

          • C:\Windows\SysWOW64\nethtsrv.exe

            Filesize

            176KB

            MD5

            7b18ca5ac499c75aa8e9b2227af70eb5

            SHA1

            6061d609f787849982017a5dc0b833a9172e4bec

            SHA256

            dc2a8957ce32ff1088870c8ea5cd259423b527a36ae8fa358292330891fc0ac9

            SHA512

            3582b4afae3fa14eb3a3e405dd09a3ed0949f696e834c82c70ac77ae08eaccb80d4f0f0330d8bfb13b7edaa662f189ae3e9c656fa88b48475612aa7ceda914e3

          • C:\Windows\SysWOW64\nethtsrv.exe

            Filesize

            176KB

            MD5

            7b18ca5ac499c75aa8e9b2227af70eb5

            SHA1

            6061d609f787849982017a5dc0b833a9172e4bec

            SHA256

            dc2a8957ce32ff1088870c8ea5cd259423b527a36ae8fa358292330891fc0ac9

            SHA512

            3582b4afae3fa14eb3a3e405dd09a3ed0949f696e834c82c70ac77ae08eaccb80d4f0f0330d8bfb13b7edaa662f189ae3e9c656fa88b48475612aa7ceda914e3

          • C:\Windows\SysWOW64\netupdsrv.exe

            Filesize

            159KB

            MD5

            fd80c2cf9cb55b51f6af37f90b2342dc

            SHA1

            197c8f80fd54cc2e7f497ce85721f304ef66f41b

            SHA256

            47bddf4f991474fc9f655cf38d4cbd61d909292b66e170ce7782953c42455887

            SHA512

            fc23b821c6d287e6221c9535d7aa9470d6fa139b125ab5ad36430ab25a28f0357cfef79b62da4a4513ca9df03fc39012230003a205e0efd7ae98e1293f15dc40

          • C:\Windows\SysWOW64\netupdsrv.exe

            Filesize

            159KB

            MD5

            fd80c2cf9cb55b51f6af37f90b2342dc

            SHA1

            197c8f80fd54cc2e7f497ce85721f304ef66f41b

            SHA256

            47bddf4f991474fc9f655cf38d4cbd61d909292b66e170ce7782953c42455887

            SHA512

            fc23b821c6d287e6221c9535d7aa9470d6fa139b125ab5ad36430ab25a28f0357cfef79b62da4a4513ca9df03fc39012230003a205e0efd7ae98e1293f15dc40

          • C:\Windows\SysWOW64\netupdsrv.exe

            Filesize

            159KB

            MD5

            fd80c2cf9cb55b51f6af37f90b2342dc

            SHA1

            197c8f80fd54cc2e7f497ce85721f304ef66f41b

            SHA256

            47bddf4f991474fc9f655cf38d4cbd61d909292b66e170ce7782953c42455887

            SHA512

            fc23b821c6d287e6221c9535d7aa9470d6fa139b125ab5ad36430ab25a28f0357cfef79b62da4a4513ca9df03fc39012230003a205e0efd7ae98e1293f15dc40

          • memory/948-159-0x0000000000000000-mapping.dmp

          • memory/1316-166-0x0000000000000000-mapping.dmp

          • memory/1424-153-0x0000000000000000-mapping.dmp

          • memory/1560-136-0x0000000000360000-0x00000000007BE000-memory.dmp

            Filesize

            4.4MB

          • memory/1560-168-0x0000000000360000-0x00000000007BE000-memory.dmp

            Filesize

            4.4MB

          • memory/2500-140-0x0000000000000000-mapping.dmp

          • memory/3684-135-0x0000000000000000-mapping.dmp

          • memory/4376-147-0x0000000000000000-mapping.dmp

          • memory/4404-165-0x0000000000000000-mapping.dmp

          • memory/4460-142-0x0000000000000000-mapping.dmp

          • memory/4592-141-0x0000000000000000-mapping.dmp

          • memory/4900-137-0x0000000000000000-mapping.dmp

          • memory/5068-158-0x0000000000000000-mapping.dmp