Analysis

  • max time kernel
    54s
  • 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 10:52

General

  • Target

    c4cc0d20e7ab1eb5f9b4c0911509891a0ff31f246988a31de6c8736b9c382725.exe

  • Size

    445KB

  • MD5

    9315d2654df0a17137f73c110caad40a

  • SHA1

    7551a90bcfec134dfffec218e510c841f82bb99e

  • SHA256

    c4cc0d20e7ab1eb5f9b4c0911509891a0ff31f246988a31de6c8736b9c382725

  • SHA512

    38728bb890266f4118c9fd415510545e7f89e5104a65356b2bb43da7d4ea320e420eb3ce13bf5c2c760195dc50f19c395288120367a0a886036976fb2afe6b67

  • SSDEEP

    12288:0r9rxbIceGqvgSDFiz3B4Ej/t1CwNgyudeBc1iT9s2Y:0rNCPGqvgwizR4EjXR2AhLY

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\c4cc0d20e7ab1eb5f9b4c0911509891a0ff31f246988a31de6c8736b9c382725.exe
    "C:\Users\Admin\AppData\Local\Temp\c4cc0d20e7ab1eb5f9b4c0911509891a0ff31f246988a31de6c8736b9c382725.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:1428
    • C:\Windows\SysWOW64\net.exe
      net stop nethttpservice
      2⤵
      • Suspicious use of WriteProcessMemory
      PID:2024
      • C:\Windows\SysWOW64\net1.exe
        C:\Windows\system32\net1 stop nethttpservice
        3⤵
          PID:896
      • C:\Windows\SysWOW64\net.exe
        net stop serviceupdater
        2⤵
        • Suspicious use of WriteProcessMemory
        PID:268
        • C:\Windows\SysWOW64\net1.exe
          C:\Windows\system32\net1 stop serviceupdater
          3⤵
            PID:468
        • C:\Windows\SysWOW64\installd.exe
          "C:\Windows\system32\installd.exe" nethfdrv
          2⤵
          • Executes dropped EXE
          • Loads dropped DLL
          PID:1288
        • C:\Windows\SysWOW64\nethtsrv.exe
          "C:\Windows\system32\nethtsrv.exe" -nfdi
          2⤵
          • Executes dropped EXE
          • Loads dropped DLL
          PID:760
        • C:\Windows\SysWOW64\netupdsrv.exe
          "C:\Windows\system32\netupdsrv.exe" -nfdi
          2⤵
          • Executes dropped EXE
          PID:1752
        • C:\Windows\SysWOW64\net.exe
          net start nethttpservice
          2⤵
          • Suspicious use of WriteProcessMemory
          PID:1836
          • C:\Windows\SysWOW64\net1.exe
            C:\Windows\system32\net1 start nethttpservice
            3⤵
              PID:1120
          • C:\Windows\SysWOW64\net.exe
            net start serviceupdater
            2⤵
            • Suspicious use of WriteProcessMemory
            PID:700
            • C:\Windows\SysWOW64\net1.exe
              C:\Windows\system32\net1 start serviceupdater
              3⤵
                PID:616
          • C:\Windows\SysWOW64\nethtsrv.exe
            C:\Windows\SysWOW64\nethtsrv.exe
            1⤵
            • Executes dropped EXE
            • Loads dropped DLL
            • Suspicious use of AdjustPrivilegeToken
            PID:1676
          • C:\Windows\SysWOW64\netupdsrv.exe
            C:\Windows\SysWOW64\netupdsrv.exe
            1⤵
            • Executes dropped EXE
            PID:1008

          Network

          MITRE ATT&CK Enterprise v6

          Replay Monitor

          Loading Replay Monitor...

          Downloads

          • C:\Windows\SysWOW64\hfnapi.dll

            Filesize

            106KB

            MD5

            28efccf466f6e54ed1ddd90ff381d3dc

            SHA1

            a32fcdf9424a238e5a9f53eede0c16a020a05ca4

            SHA256

            4bfb3d33dff2f0949515f56ddbc5f7bad2ef5dca27510e17905e7a04bafe0581

            SHA512

            fd1a92a7e75ed38d12bbadf402ffce58d284aa0b143757546c6ae0dfb9c19ae9f9d8d58874685ac556d800638dc22097ac9207e654ffbffefbf3228b212793cf

          • C:\Windows\SysWOW64\hfpapi.dll

            Filesize

            241KB

            MD5

            4263af35143ac5c4c2db03152f80a93c

            SHA1

            2f7f59fcd888b9e96976c803d82f42f2484ac4b1

            SHA256

            addb8e71a351355b9813b2930452f9dada29361bd1f937faabb84bf2c0405060

            SHA512

            894fac927685e4c6edd63b01e5568ba4e8cb2887ccd2dcf3338a069107b87a502c48cc81c4aabc0f3fe2796d419bb571630cf7cbef9ebeae8f55038011071346

          • C:\Windows\SysWOW64\installd.exe

            Filesize

            108KB

            MD5

            7fe5879bf5a63e6b7da10c62a0b24b68

            SHA1

            8ad12dfa1d3dbab3c0fc5ffd1c4e75f9536dccc3

            SHA256

            6745d4f919a30967d3b21eb4f7569448e9ae50b44d62f80ab355ba47e8c47769

            SHA512

            636af4de5b0cc52e6cbbc63b35ba6f9a84838547e4f0912b3f22b9f395cd75bab0d68928e3aeba7436828caa791a7c992351fc38c6a10f6945cda4beba714cb7

          • C:\Windows\SysWOW64\nethtsrv.exe

            Filesize

            176KB

            MD5

            cdfa977f976f63a4b2d5d9b3cff7be2d

            SHA1

            a381d995fa06e2273baecfa6ebc83db388fd5d44

            SHA256

            25e709205d983d8820ba5cf7f7ef7c1a183fde3067c8b5cbd177f2c961166fd8

            SHA512

            a5c528dbef49a3bd708423faebf843cf96cd2de6d915a541620cf74a478679786e2ef754d539dc768bcf7f5f95d98f168d9e92cb5607c618af3e56e925a486a7

          • C:\Windows\SysWOW64\nethtsrv.exe

            Filesize

            176KB

            MD5

            cdfa977f976f63a4b2d5d9b3cff7be2d

            SHA1

            a381d995fa06e2273baecfa6ebc83db388fd5d44

            SHA256

            25e709205d983d8820ba5cf7f7ef7c1a183fde3067c8b5cbd177f2c961166fd8

            SHA512

            a5c528dbef49a3bd708423faebf843cf96cd2de6d915a541620cf74a478679786e2ef754d539dc768bcf7f5f95d98f168d9e92cb5607c618af3e56e925a486a7

          • C:\Windows\SysWOW64\netupdsrv.exe

            Filesize

            158KB

            MD5

            43360b199b7814a45a4ad2941da7c017

            SHA1

            2864397764ef830681a6652ef5b1230a5c103958

            SHA256

            c8b798149444bfb50d75b4fa00209858ba53027764aada6cb7f0e57a11d39af5

            SHA512

            1b90e293d254158530e8a795880be261705fb15e46ebf2c517c1463c4ac2251f70dcf17cefe73a65e1785ab7f6909e634f845b5cf5c8e9ea2f2d2ab1950bf542

          • C:\Windows\SysWOW64\netupdsrv.exe

            Filesize

            158KB

            MD5

            43360b199b7814a45a4ad2941da7c017

            SHA1

            2864397764ef830681a6652ef5b1230a5c103958

            SHA256

            c8b798149444bfb50d75b4fa00209858ba53027764aada6cb7f0e57a11d39af5

            SHA512

            1b90e293d254158530e8a795880be261705fb15e46ebf2c517c1463c4ac2251f70dcf17cefe73a65e1785ab7f6909e634f845b5cf5c8e9ea2f2d2ab1950bf542

          • \Users\Admin\AppData\Local\Temp\nseF386.tmp\System.dll

            Filesize

            11KB

            MD5

            c17103ae9072a06da581dec998343fc1

            SHA1

            b72148c6bdfaada8b8c3f950e610ee7cf1da1f8d

            SHA256

            dc58d8ad81cacb0c1ed72e33bff8f23ea40b5252b5bb55d393a0903e6819ae2f

            SHA512

            d32a71aaef18e993f28096d536e41c4d016850721b31171513ce28bbd805a54fd290b7c3e9d935f72e676a1acfb4f0dcc89d95040a0dd29f2b6975855c18986f

          • \Users\Admin\AppData\Local\Temp\nseF386.tmp\nsExec.dll

            Filesize

            6KB

            MD5

            acc2b699edfea5bf5aae45aba3a41e96

            SHA1

            d2accf4d494e43ceb2cff69abe4dd17147d29cc2

            SHA256

            168a974eaa3f588d759db3f47c1a9fdc3494ba1fa1a73a84e5e3b2a4d58abd7e

            SHA512

            e29ea10ada98c71a18273b04f44f385b120d4e8473e441ce5748cfa44a23648814f2656f429b85440157988c88de776c6ac008dc38bf09cbb746c230a46c69fe

          • \Users\Admin\AppData\Local\Temp\nseF386.tmp\nsExec.dll

            Filesize

            6KB

            MD5

            acc2b699edfea5bf5aae45aba3a41e96

            SHA1

            d2accf4d494e43ceb2cff69abe4dd17147d29cc2

            SHA256

            168a974eaa3f588d759db3f47c1a9fdc3494ba1fa1a73a84e5e3b2a4d58abd7e

            SHA512

            e29ea10ada98c71a18273b04f44f385b120d4e8473e441ce5748cfa44a23648814f2656f429b85440157988c88de776c6ac008dc38bf09cbb746c230a46c69fe

          • \Users\Admin\AppData\Local\Temp\nseF386.tmp\nsExec.dll

            Filesize

            6KB

            MD5

            acc2b699edfea5bf5aae45aba3a41e96

            SHA1

            d2accf4d494e43ceb2cff69abe4dd17147d29cc2

            SHA256

            168a974eaa3f588d759db3f47c1a9fdc3494ba1fa1a73a84e5e3b2a4d58abd7e

            SHA512

            e29ea10ada98c71a18273b04f44f385b120d4e8473e441ce5748cfa44a23648814f2656f429b85440157988c88de776c6ac008dc38bf09cbb746c230a46c69fe

          • \Users\Admin\AppData\Local\Temp\nseF386.tmp\nsExec.dll

            Filesize

            6KB

            MD5

            acc2b699edfea5bf5aae45aba3a41e96

            SHA1

            d2accf4d494e43ceb2cff69abe4dd17147d29cc2

            SHA256

            168a974eaa3f588d759db3f47c1a9fdc3494ba1fa1a73a84e5e3b2a4d58abd7e

            SHA512

            e29ea10ada98c71a18273b04f44f385b120d4e8473e441ce5748cfa44a23648814f2656f429b85440157988c88de776c6ac008dc38bf09cbb746c230a46c69fe

          • \Windows\SysWOW64\hfnapi.dll

            Filesize

            106KB

            MD5

            28efccf466f6e54ed1ddd90ff381d3dc

            SHA1

            a32fcdf9424a238e5a9f53eede0c16a020a05ca4

            SHA256

            4bfb3d33dff2f0949515f56ddbc5f7bad2ef5dca27510e17905e7a04bafe0581

            SHA512

            fd1a92a7e75ed38d12bbadf402ffce58d284aa0b143757546c6ae0dfb9c19ae9f9d8d58874685ac556d800638dc22097ac9207e654ffbffefbf3228b212793cf

          • \Windows\SysWOW64\hfnapi.dll

            Filesize

            106KB

            MD5

            28efccf466f6e54ed1ddd90ff381d3dc

            SHA1

            a32fcdf9424a238e5a9f53eede0c16a020a05ca4

            SHA256

            4bfb3d33dff2f0949515f56ddbc5f7bad2ef5dca27510e17905e7a04bafe0581

            SHA512

            fd1a92a7e75ed38d12bbadf402ffce58d284aa0b143757546c6ae0dfb9c19ae9f9d8d58874685ac556d800638dc22097ac9207e654ffbffefbf3228b212793cf

          • \Windows\SysWOW64\hfnapi.dll

            Filesize

            106KB

            MD5

            28efccf466f6e54ed1ddd90ff381d3dc

            SHA1

            a32fcdf9424a238e5a9f53eede0c16a020a05ca4

            SHA256

            4bfb3d33dff2f0949515f56ddbc5f7bad2ef5dca27510e17905e7a04bafe0581

            SHA512

            fd1a92a7e75ed38d12bbadf402ffce58d284aa0b143757546c6ae0dfb9c19ae9f9d8d58874685ac556d800638dc22097ac9207e654ffbffefbf3228b212793cf

          • \Windows\SysWOW64\hfpapi.dll

            Filesize

            241KB

            MD5

            4263af35143ac5c4c2db03152f80a93c

            SHA1

            2f7f59fcd888b9e96976c803d82f42f2484ac4b1

            SHA256

            addb8e71a351355b9813b2930452f9dada29361bd1f937faabb84bf2c0405060

            SHA512

            894fac927685e4c6edd63b01e5568ba4e8cb2887ccd2dcf3338a069107b87a502c48cc81c4aabc0f3fe2796d419bb571630cf7cbef9ebeae8f55038011071346

          • \Windows\SysWOW64\hfpapi.dll

            Filesize

            241KB

            MD5

            4263af35143ac5c4c2db03152f80a93c

            SHA1

            2f7f59fcd888b9e96976c803d82f42f2484ac4b1

            SHA256

            addb8e71a351355b9813b2930452f9dada29361bd1f937faabb84bf2c0405060

            SHA512

            894fac927685e4c6edd63b01e5568ba4e8cb2887ccd2dcf3338a069107b87a502c48cc81c4aabc0f3fe2796d419bb571630cf7cbef9ebeae8f55038011071346

          • \Windows\SysWOW64\installd.exe

            Filesize

            108KB

            MD5

            7fe5879bf5a63e6b7da10c62a0b24b68

            SHA1

            8ad12dfa1d3dbab3c0fc5ffd1c4e75f9536dccc3

            SHA256

            6745d4f919a30967d3b21eb4f7569448e9ae50b44d62f80ab355ba47e8c47769

            SHA512

            636af4de5b0cc52e6cbbc63b35ba6f9a84838547e4f0912b3f22b9f395cd75bab0d68928e3aeba7436828caa791a7c992351fc38c6a10f6945cda4beba714cb7

          • \Windows\SysWOW64\nethtsrv.exe

            Filesize

            176KB

            MD5

            cdfa977f976f63a4b2d5d9b3cff7be2d

            SHA1

            a381d995fa06e2273baecfa6ebc83db388fd5d44

            SHA256

            25e709205d983d8820ba5cf7f7ef7c1a183fde3067c8b5cbd177f2c961166fd8

            SHA512

            a5c528dbef49a3bd708423faebf843cf96cd2de6d915a541620cf74a478679786e2ef754d539dc768bcf7f5f95d98f168d9e92cb5607c618af3e56e925a486a7

          • \Windows\SysWOW64\netupdsrv.exe

            Filesize

            158KB

            MD5

            43360b199b7814a45a4ad2941da7c017

            SHA1

            2864397764ef830681a6652ef5b1230a5c103958

            SHA256

            c8b798149444bfb50d75b4fa00209858ba53027764aada6cb7f0e57a11d39af5

            SHA512

            1b90e293d254158530e8a795880be261705fb15e46ebf2c517c1463c4ac2251f70dcf17cefe73a65e1785ab7f6909e634f845b5cf5c8e9ea2f2d2ab1950bf542

          • memory/268-60-0x0000000000000000-mapping.dmp

          • memory/468-61-0x0000000000000000-mapping.dmp

          • memory/616-86-0x0000000000000000-mapping.dmp

          • memory/700-85-0x0000000000000000-mapping.dmp

          • memory/760-69-0x0000000000000000-mapping.dmp

          • memory/896-58-0x0000000000000000-mapping.dmp

          • memory/1120-80-0x0000000000000000-mapping.dmp

          • memory/1288-63-0x0000000000000000-mapping.dmp

          • memory/1428-54-0x0000000075591000-0x0000000075593000-memory.dmp

            Filesize

            8KB

          • memory/1752-75-0x0000000000000000-mapping.dmp

          • memory/1836-79-0x0000000000000000-mapping.dmp

          • memory/2024-57-0x0000000000000000-mapping.dmp