Analysis

  • max time kernel
    159s
  • max time network
    172s
  • 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 10:31

General

  • Target

    25ee17b54eb2a1bd6d23362fac582f61df6680790cea8ff781c974bbe8874408.exe

  • Size

    602KB

  • MD5

    4a7590bd597159457945fd1b01427ba6

  • SHA1

    29882ec049eb7acb88e99fe9b6dd2cfccafa11c7

  • SHA256

    25ee17b54eb2a1bd6d23362fac582f61df6680790cea8ff781c974bbe8874408

  • SHA512

    af023b882381e3f51544596c61d73e449393e3202908420f2911ce3befb0ab67e8cdb0e859479105b53f74acf327d53824a6c9857b65368c7b7abed26b7465a2

  • SSDEEP

    12288:2Iny5DYTu1RCO1atIOHN+fH+sdi2cf+l5KUCH/WjDS045:4UTu1RPLcM8+lASk5

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\25ee17b54eb2a1bd6d23362fac582f61df6680790cea8ff781c974bbe8874408.exe
    "C:\Users\Admin\AppData\Local\Temp\25ee17b54eb2a1bd6d23362fac582f61df6680790cea8ff781c974bbe8874408.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:2088
    • C:\Windows\SysWOW64\net.exe
      net stop nethttpservice
      2⤵
      • Suspicious use of WriteProcessMemory
      PID:2524
      • C:\Windows\SysWOW64\net1.exe
        C:\Windows\system32\net1 stop nethttpservice
        3⤵
          PID:1972
      • C:\Windows\SysWOW64\net.exe
        net stop serviceupdater
        2⤵
        • Suspicious use of WriteProcessMemory
        PID:1832
        • C:\Windows\SysWOW64\net1.exe
          C:\Windows\system32\net1 stop serviceupdater
          3⤵
            PID:4728
        • C:\Windows\SysWOW64\installd.exe
          "C:\Windows\system32\installd.exe" nethfdrv
          2⤵
          • Executes dropped EXE
          • Loads dropped DLL
          PID:2196
        • C:\Windows\SysWOW64\nethtsrv.exe
          "C:\Windows\system32\nethtsrv.exe" -nfdi
          2⤵
          • Executes dropped EXE
          • Loads dropped DLL
          PID:4092
        • C:\Windows\SysWOW64\netupdsrv.exe
          "C:\Windows\system32\netupdsrv.exe" -nfdi
          2⤵
          • Executes dropped EXE
          PID:1976
        • C:\Windows\SysWOW64\net.exe
          net start nethttpservice
          2⤵
          • Suspicious use of WriteProcessMemory
          PID:2876
          • C:\Windows\SysWOW64\net1.exe
            C:\Windows\system32\net1 start nethttpservice
            3⤵
              PID:1908
          • C:\Windows\SysWOW64\net.exe
            net start serviceupdater
            2⤵
            • Suspicious use of WriteProcessMemory
            PID:5084
            • C:\Windows\SysWOW64\net1.exe
              C:\Windows\system32\net1 start serviceupdater
              3⤵
                PID:4616
          • 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:1284
          • C:\Windows\SysWOW64\netupdsrv.exe
            C:\Windows\SysWOW64\netupdsrv.exe
            1⤵
            • Executes dropped EXE
            PID:876

          Network

          MITRE ATT&CK Enterprise v6

          Replay Monitor

          Loading Replay Monitor...

          Downloads

          • C:\Users\Admin\AppData\Local\Temp\nst424B.tmp\System.dll

            Filesize

            11KB

            MD5

            c17103ae9072a06da581dec998343fc1

            SHA1

            b72148c6bdfaada8b8c3f950e610ee7cf1da1f8d

            SHA256

            dc58d8ad81cacb0c1ed72e33bff8f23ea40b5252b5bb55d393a0903e6819ae2f

            SHA512

            d32a71aaef18e993f28096d536e41c4d016850721b31171513ce28bbd805a54fd290b7c3e9d935f72e676a1acfb4f0dcc89d95040a0dd29f2b6975855c18986f

          • C:\Users\Admin\AppData\Local\Temp\nst424B.tmp\nsExec.dll

            Filesize

            6KB

            MD5

            acc2b699edfea5bf5aae45aba3a41e96

            SHA1

            d2accf4d494e43ceb2cff69abe4dd17147d29cc2

            SHA256

            168a974eaa3f588d759db3f47c1a9fdc3494ba1fa1a73a84e5e3b2a4d58abd7e

            SHA512

            e29ea10ada98c71a18273b04f44f385b120d4e8473e441ce5748cfa44a23648814f2656f429b85440157988c88de776c6ac008dc38bf09cbb746c230a46c69fe

          • C:\Users\Admin\AppData\Local\Temp\nst424B.tmp\nsExec.dll

            Filesize

            6KB

            MD5

            acc2b699edfea5bf5aae45aba3a41e96

            SHA1

            d2accf4d494e43ceb2cff69abe4dd17147d29cc2

            SHA256

            168a974eaa3f588d759db3f47c1a9fdc3494ba1fa1a73a84e5e3b2a4d58abd7e

            SHA512

            e29ea10ada98c71a18273b04f44f385b120d4e8473e441ce5748cfa44a23648814f2656f429b85440157988c88de776c6ac008dc38bf09cbb746c230a46c69fe

          • C:\Users\Admin\AppData\Local\Temp\nst424B.tmp\nsExec.dll

            Filesize

            6KB

            MD5

            acc2b699edfea5bf5aae45aba3a41e96

            SHA1

            d2accf4d494e43ceb2cff69abe4dd17147d29cc2

            SHA256

            168a974eaa3f588d759db3f47c1a9fdc3494ba1fa1a73a84e5e3b2a4d58abd7e

            SHA512

            e29ea10ada98c71a18273b04f44f385b120d4e8473e441ce5748cfa44a23648814f2656f429b85440157988c88de776c6ac008dc38bf09cbb746c230a46c69fe

          • C:\Users\Admin\AppData\Local\Temp\nst424B.tmp\nsExec.dll

            Filesize

            6KB

            MD5

            acc2b699edfea5bf5aae45aba3a41e96

            SHA1

            d2accf4d494e43ceb2cff69abe4dd17147d29cc2

            SHA256

            168a974eaa3f588d759db3f47c1a9fdc3494ba1fa1a73a84e5e3b2a4d58abd7e

            SHA512

            e29ea10ada98c71a18273b04f44f385b120d4e8473e441ce5748cfa44a23648814f2656f429b85440157988c88de776c6ac008dc38bf09cbb746c230a46c69fe

          • C:\Users\Admin\AppData\Local\Temp\nst424B.tmp\nsExec.dll

            Filesize

            6KB

            MD5

            acc2b699edfea5bf5aae45aba3a41e96

            SHA1

            d2accf4d494e43ceb2cff69abe4dd17147d29cc2

            SHA256

            168a974eaa3f588d759db3f47c1a9fdc3494ba1fa1a73a84e5e3b2a4d58abd7e

            SHA512

            e29ea10ada98c71a18273b04f44f385b120d4e8473e441ce5748cfa44a23648814f2656f429b85440157988c88de776c6ac008dc38bf09cbb746c230a46c69fe

          • C:\Users\Admin\AppData\Local\Temp\nst424B.tmp\nsExec.dll

            Filesize

            6KB

            MD5

            acc2b699edfea5bf5aae45aba3a41e96

            SHA1

            d2accf4d494e43ceb2cff69abe4dd17147d29cc2

            SHA256

            168a974eaa3f588d759db3f47c1a9fdc3494ba1fa1a73a84e5e3b2a4d58abd7e

            SHA512

            e29ea10ada98c71a18273b04f44f385b120d4e8473e441ce5748cfa44a23648814f2656f429b85440157988c88de776c6ac008dc38bf09cbb746c230a46c69fe

          • C:\Users\Admin\AppData\Local\Temp\nst424B.tmp\nsExec.dll

            Filesize

            6KB

            MD5

            acc2b699edfea5bf5aae45aba3a41e96

            SHA1

            d2accf4d494e43ceb2cff69abe4dd17147d29cc2

            SHA256

            168a974eaa3f588d759db3f47c1a9fdc3494ba1fa1a73a84e5e3b2a4d58abd7e

            SHA512

            e29ea10ada98c71a18273b04f44f385b120d4e8473e441ce5748cfa44a23648814f2656f429b85440157988c88de776c6ac008dc38bf09cbb746c230a46c69fe

          • C:\Users\Admin\AppData\Local\Temp\nst424B.tmp\nsExec.dll

            Filesize

            6KB

            MD5

            acc2b699edfea5bf5aae45aba3a41e96

            SHA1

            d2accf4d494e43ceb2cff69abe4dd17147d29cc2

            SHA256

            168a974eaa3f588d759db3f47c1a9fdc3494ba1fa1a73a84e5e3b2a4d58abd7e

            SHA512

            e29ea10ada98c71a18273b04f44f385b120d4e8473e441ce5748cfa44a23648814f2656f429b85440157988c88de776c6ac008dc38bf09cbb746c230a46c69fe

          • C:\Windows\SysWOW64\hfnapi.dll

            Filesize

            106KB

            MD5

            93fde2626f41177e6fa07573313687e3

            SHA1

            aa77848e0bdb686ffc43aee40ae167d2f72fea6a

            SHA256

            5a6bba6df158724e53b58d88077f0daf66160b3ab2ff60be44da2e7c34d3f924

            SHA512

            ded531889134de281c65330ffa9d515c0d94932db8a63bdce5c4a0b014af2bbed240bb09bde773b6ab6ecb630ac941eb6832f0e7d2f0441f7d589f65cd3dd5d8

          • C:\Windows\SysWOW64\hfnapi.dll

            Filesize

            106KB

            MD5

            93fde2626f41177e6fa07573313687e3

            SHA1

            aa77848e0bdb686ffc43aee40ae167d2f72fea6a

            SHA256

            5a6bba6df158724e53b58d88077f0daf66160b3ab2ff60be44da2e7c34d3f924

            SHA512

            ded531889134de281c65330ffa9d515c0d94932db8a63bdce5c4a0b014af2bbed240bb09bde773b6ab6ecb630ac941eb6832f0e7d2f0441f7d589f65cd3dd5d8

          • C:\Windows\SysWOW64\hfnapi.dll

            Filesize

            106KB

            MD5

            93fde2626f41177e6fa07573313687e3

            SHA1

            aa77848e0bdb686ffc43aee40ae167d2f72fea6a

            SHA256

            5a6bba6df158724e53b58d88077f0daf66160b3ab2ff60be44da2e7c34d3f924

            SHA512

            ded531889134de281c65330ffa9d515c0d94932db8a63bdce5c4a0b014af2bbed240bb09bde773b6ab6ecb630ac941eb6832f0e7d2f0441f7d589f65cd3dd5d8

          • C:\Windows\SysWOW64\hfnapi.dll

            Filesize

            106KB

            MD5

            93fde2626f41177e6fa07573313687e3

            SHA1

            aa77848e0bdb686ffc43aee40ae167d2f72fea6a

            SHA256

            5a6bba6df158724e53b58d88077f0daf66160b3ab2ff60be44da2e7c34d3f924

            SHA512

            ded531889134de281c65330ffa9d515c0d94932db8a63bdce5c4a0b014af2bbed240bb09bde773b6ab6ecb630ac941eb6832f0e7d2f0441f7d589f65cd3dd5d8

          • C:\Windows\SysWOW64\hfpapi.dll

            Filesize

            241KB

            MD5

            d2587b17d72ebe554d4ce5e6179279c8

            SHA1

            8b7189d80cf701fb223ec311ea27dcac1973b492

            SHA256

            8446f0ab2af2821df9e5903891784e691410b1454554d50dcaed7f707071a62a

            SHA512

            6d39abc991d082cb1d72c39ce8abe080c74dd843432a3f3aecc66ba7e8392911d1c1e86da7953cf89ace4e36f9fa7ce3896547c74855c811bae88bbc4d0f298d

          • C:\Windows\SysWOW64\hfpapi.dll

            Filesize

            241KB

            MD5

            d2587b17d72ebe554d4ce5e6179279c8

            SHA1

            8b7189d80cf701fb223ec311ea27dcac1973b492

            SHA256

            8446f0ab2af2821df9e5903891784e691410b1454554d50dcaed7f707071a62a

            SHA512

            6d39abc991d082cb1d72c39ce8abe080c74dd843432a3f3aecc66ba7e8392911d1c1e86da7953cf89ace4e36f9fa7ce3896547c74855c811bae88bbc4d0f298d

          • C:\Windows\SysWOW64\hfpapi.dll

            Filesize

            241KB

            MD5

            d2587b17d72ebe554d4ce5e6179279c8

            SHA1

            8b7189d80cf701fb223ec311ea27dcac1973b492

            SHA256

            8446f0ab2af2821df9e5903891784e691410b1454554d50dcaed7f707071a62a

            SHA512

            6d39abc991d082cb1d72c39ce8abe080c74dd843432a3f3aecc66ba7e8392911d1c1e86da7953cf89ace4e36f9fa7ce3896547c74855c811bae88bbc4d0f298d

          • C:\Windows\SysWOW64\installd.exe

            Filesize

            108KB

            MD5

            d987173e4be1458c1eff81ffc2fe9510

            SHA1

            53b5f01b62f69d0c3b3f175b7447c3c727116af9

            SHA256

            423047361e8531f5fa728d5957751125384b66fc4d10f935c9e280eea839cef2

            SHA512

            60ab81acb0426b3bc6ae0f0552aed7f3de2ccd01f4060e2b8d3f7bf428204ea39d5da4b56d7fb9eb227af8fd1ad89ee413ae762c57303f82268147d3ea0b9431

          • C:\Windows\SysWOW64\installd.exe

            Filesize

            108KB

            MD5

            d987173e4be1458c1eff81ffc2fe9510

            SHA1

            53b5f01b62f69d0c3b3f175b7447c3c727116af9

            SHA256

            423047361e8531f5fa728d5957751125384b66fc4d10f935c9e280eea839cef2

            SHA512

            60ab81acb0426b3bc6ae0f0552aed7f3de2ccd01f4060e2b8d3f7bf428204ea39d5da4b56d7fb9eb227af8fd1ad89ee413ae762c57303f82268147d3ea0b9431

          • C:\Windows\SysWOW64\nethtsrv.exe

            Filesize

            176KB

            MD5

            7ff1a8b7eac5f80dc03b87a2077ac213

            SHA1

            5f277316b415550a5bb720217785267981332387

            SHA256

            219b2125ce407fde4095c7bd5996a808ab9feaf5f1088c3122562d4cd9d16693

            SHA512

            54dfb8e9c62d50338f2544306b72c36a235129607e778132d2976c850c33ed5565ab8db2917b2c83619fc7d32ffeafd159cfe31f4b0946238119c1c911d9cffd

          • C:\Windows\SysWOW64\nethtsrv.exe

            Filesize

            176KB

            MD5

            7ff1a8b7eac5f80dc03b87a2077ac213

            SHA1

            5f277316b415550a5bb720217785267981332387

            SHA256

            219b2125ce407fde4095c7bd5996a808ab9feaf5f1088c3122562d4cd9d16693

            SHA512

            54dfb8e9c62d50338f2544306b72c36a235129607e778132d2976c850c33ed5565ab8db2917b2c83619fc7d32ffeafd159cfe31f4b0946238119c1c911d9cffd

          • C:\Windows\SysWOW64\nethtsrv.exe

            Filesize

            176KB

            MD5

            7ff1a8b7eac5f80dc03b87a2077ac213

            SHA1

            5f277316b415550a5bb720217785267981332387

            SHA256

            219b2125ce407fde4095c7bd5996a808ab9feaf5f1088c3122562d4cd9d16693

            SHA512

            54dfb8e9c62d50338f2544306b72c36a235129607e778132d2976c850c33ed5565ab8db2917b2c83619fc7d32ffeafd159cfe31f4b0946238119c1c911d9cffd

          • C:\Windows\SysWOW64\netupdsrv.exe

            Filesize

            158KB

            MD5

            e226173e50420fc32a64b0df23188e1f

            SHA1

            d1b08c9d85d83c2e23c4f7c8225df61387715e9a

            SHA256

            6da380418ca817708a51503e2a15d236e3c66c5275b47ff508b14b90f3d1495b

            SHA512

            e19a6c25dc6fb7e7ef0dd2b8f91929b9b4f27e475684d0b17ecf75785e301328c1a694bb82f22ba45d1fb4492b9bdc2ec76f3f8dff8b408f06269b383951b6ba

          • C:\Windows\SysWOW64\netupdsrv.exe

            Filesize

            158KB

            MD5

            e226173e50420fc32a64b0df23188e1f

            SHA1

            d1b08c9d85d83c2e23c4f7c8225df61387715e9a

            SHA256

            6da380418ca817708a51503e2a15d236e3c66c5275b47ff508b14b90f3d1495b

            SHA512

            e19a6c25dc6fb7e7ef0dd2b8f91929b9b4f27e475684d0b17ecf75785e301328c1a694bb82f22ba45d1fb4492b9bdc2ec76f3f8dff8b408f06269b383951b6ba

          • C:\Windows\SysWOW64\netupdsrv.exe

            Filesize

            158KB

            MD5

            e226173e50420fc32a64b0df23188e1f

            SHA1

            d1b08c9d85d83c2e23c4f7c8225df61387715e9a

            SHA256

            6da380418ca817708a51503e2a15d236e3c66c5275b47ff508b14b90f3d1495b

            SHA512

            e19a6c25dc6fb7e7ef0dd2b8f91929b9b4f27e475684d0b17ecf75785e301328c1a694bb82f22ba45d1fb4492b9bdc2ec76f3f8dff8b408f06269b383951b6ba

          • memory/1832-140-0x0000000000000000-mapping.dmp

          • memory/1908-159-0x0000000000000000-mapping.dmp

          • memory/1972-137-0x0000000000000000-mapping.dmp

          • memory/1976-153-0x0000000000000000-mapping.dmp

          • memory/2088-132-0x0000000000360000-0x00000000007BE000-memory.dmp

            Filesize

            4.4MB

          • memory/2088-168-0x0000000000360000-0x00000000007BE000-memory.dmp

            Filesize

            4.4MB

          • memory/2196-142-0x0000000000000000-mapping.dmp

          • memory/2524-136-0x0000000000000000-mapping.dmp

          • memory/2876-158-0x0000000000000000-mapping.dmp

          • memory/4092-147-0x0000000000000000-mapping.dmp

          • memory/4616-166-0x0000000000000000-mapping.dmp

          • memory/4728-141-0x0000000000000000-mapping.dmp

          • memory/5084-165-0x0000000000000000-mapping.dmp