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Analysis

  • max time kernel
    187s
  • max time network
    192s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20220812-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20220812-enlocale:en-usos:windows10-2004-x64system
  • submitted
    24/11/2022, 05:42

General

  • Target

    303adc08b0e0962277e0c8a0cee24e29964e58a2a22d6eb22e7a6eda290e1ed9.exe

  • Size

    602KB

  • MD5

    8d7490912f9bd1f50c81ac16c643dec2

  • SHA1

    31851072d1e1c46d58404d66831a28ce5c09b40b

  • SHA256

    303adc08b0e0962277e0c8a0cee24e29964e58a2a22d6eb22e7a6eda290e1ed9

  • SHA512

    b0f564dcf6dd726848466a1cc277e5eadfe2196ebb1a1382f44eb199e8fb12205db499868cfdfbbb5d2e6ee87a1bcec19654c5f81ae886bf72783ba35c6b6a94

  • SSDEEP

    12288:NIny5DYTg9K5MCT2wClQG4Xqy+m58W8LvvvsyFJa6yMY+KqklBrhXfsumH:ZUTg9cVrsZ6yjvxaWKqklBdfsBH

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\303adc08b0e0962277e0c8a0cee24e29964e58a2a22d6eb22e7a6eda290e1ed9.exe
    "C:\Users\Admin\AppData\Local\Temp\303adc08b0e0962277e0c8a0cee24e29964e58a2a22d6eb22e7a6eda290e1ed9.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:2176
    • C:\Windows\SysWOW64\net.exe
      net stop nethttpservice
      2⤵
      • Suspicious use of WriteProcessMemory
      PID:3968
      • C:\Windows\SysWOW64\net1.exe
        C:\Windows\system32\net1 stop nethttpservice
        3⤵
          PID:4084
      • C:\Windows\SysWOW64\net.exe
        net stop serviceupdater
        2⤵
        • Suspicious use of WriteProcessMemory
        PID:5048
        • C:\Windows\SysWOW64\net1.exe
          C:\Windows\system32\net1 stop serviceupdater
          3⤵
            PID:4940
        • C:\Windows\SysWOW64\installd.exe
          "C:\Windows\system32\installd.exe" nethfdrv
          2⤵
          • Executes dropped EXE
          • Loads dropped DLL
          PID:4904
        • C:\Windows\SysWOW64\nethtsrv.exe
          "C:\Windows\system32\nethtsrv.exe" -nfdi
          2⤵
          • Executes dropped EXE
          • Loads dropped DLL
          PID:3556
        • C:\Windows\SysWOW64\netupdsrv.exe
          "C:\Windows\system32\netupdsrv.exe" -nfdi
          2⤵
          • Executes dropped EXE
          PID:3680
        • C:\Windows\SysWOW64\net.exe
          net start nethttpservice
          2⤵
          • Suspicious use of WriteProcessMemory
          PID:220
          • C:\Windows\SysWOW64\net1.exe
            C:\Windows\system32\net1 start nethttpservice
            3⤵
              PID:1328
          • C:\Windows\SysWOW64\net.exe
            net start serviceupdater
            2⤵
            • Suspicious use of WriteProcessMemory
            PID:3808
            • C:\Windows\SysWOW64\net1.exe
              C:\Windows\system32\net1 start serviceupdater
              3⤵
                PID:2492
          • 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:4248
          • C:\Windows\SysWOW64\netupdsrv.exe
            C:\Windows\SysWOW64\netupdsrv.exe
            1⤵
            • Executes dropped EXE
            PID:1224

          Network

          MITRE ATT&CK Enterprise v6

          Replay Monitor

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          Downloads

          • C:\Users\Admin\AppData\Local\Temp\nsf2E55.tmp\System.dll

            Filesize

            11KB

            MD5

            c17103ae9072a06da581dec998343fc1

            SHA1

            b72148c6bdfaada8b8c3f950e610ee7cf1da1f8d

            SHA256

            dc58d8ad81cacb0c1ed72e33bff8f23ea40b5252b5bb55d393a0903e6819ae2f

            SHA512

            d32a71aaef18e993f28096d536e41c4d016850721b31171513ce28bbd805a54fd290b7c3e9d935f72e676a1acfb4f0dcc89d95040a0dd29f2b6975855c18986f

          • C:\Users\Admin\AppData\Local\Temp\nsf2E55.tmp\nsExec.dll

            Filesize

            6KB

            MD5

            acc2b699edfea5bf5aae45aba3a41e96

            SHA1

            d2accf4d494e43ceb2cff69abe4dd17147d29cc2

            SHA256

            168a974eaa3f588d759db3f47c1a9fdc3494ba1fa1a73a84e5e3b2a4d58abd7e

            SHA512

            e29ea10ada98c71a18273b04f44f385b120d4e8473e441ce5748cfa44a23648814f2656f429b85440157988c88de776c6ac008dc38bf09cbb746c230a46c69fe

          • C:\Users\Admin\AppData\Local\Temp\nsf2E55.tmp\nsExec.dll

            Filesize

            6KB

            MD5

            acc2b699edfea5bf5aae45aba3a41e96

            SHA1

            d2accf4d494e43ceb2cff69abe4dd17147d29cc2

            SHA256

            168a974eaa3f588d759db3f47c1a9fdc3494ba1fa1a73a84e5e3b2a4d58abd7e

            SHA512

            e29ea10ada98c71a18273b04f44f385b120d4e8473e441ce5748cfa44a23648814f2656f429b85440157988c88de776c6ac008dc38bf09cbb746c230a46c69fe

          • C:\Users\Admin\AppData\Local\Temp\nsf2E55.tmp\nsExec.dll

            Filesize

            6KB

            MD5

            acc2b699edfea5bf5aae45aba3a41e96

            SHA1

            d2accf4d494e43ceb2cff69abe4dd17147d29cc2

            SHA256

            168a974eaa3f588d759db3f47c1a9fdc3494ba1fa1a73a84e5e3b2a4d58abd7e

            SHA512

            e29ea10ada98c71a18273b04f44f385b120d4e8473e441ce5748cfa44a23648814f2656f429b85440157988c88de776c6ac008dc38bf09cbb746c230a46c69fe

          • C:\Users\Admin\AppData\Local\Temp\nsf2E55.tmp\nsExec.dll

            Filesize

            6KB

            MD5

            acc2b699edfea5bf5aae45aba3a41e96

            SHA1

            d2accf4d494e43ceb2cff69abe4dd17147d29cc2

            SHA256

            168a974eaa3f588d759db3f47c1a9fdc3494ba1fa1a73a84e5e3b2a4d58abd7e

            SHA512

            e29ea10ada98c71a18273b04f44f385b120d4e8473e441ce5748cfa44a23648814f2656f429b85440157988c88de776c6ac008dc38bf09cbb746c230a46c69fe

          • C:\Users\Admin\AppData\Local\Temp\nsf2E55.tmp\nsExec.dll

            Filesize

            6KB

            MD5

            acc2b699edfea5bf5aae45aba3a41e96

            SHA1

            d2accf4d494e43ceb2cff69abe4dd17147d29cc2

            SHA256

            168a974eaa3f588d759db3f47c1a9fdc3494ba1fa1a73a84e5e3b2a4d58abd7e

            SHA512

            e29ea10ada98c71a18273b04f44f385b120d4e8473e441ce5748cfa44a23648814f2656f429b85440157988c88de776c6ac008dc38bf09cbb746c230a46c69fe

          • C:\Users\Admin\AppData\Local\Temp\nsf2E55.tmp\nsExec.dll

            Filesize

            6KB

            MD5

            acc2b699edfea5bf5aae45aba3a41e96

            SHA1

            d2accf4d494e43ceb2cff69abe4dd17147d29cc2

            SHA256

            168a974eaa3f588d759db3f47c1a9fdc3494ba1fa1a73a84e5e3b2a4d58abd7e

            SHA512

            e29ea10ada98c71a18273b04f44f385b120d4e8473e441ce5748cfa44a23648814f2656f429b85440157988c88de776c6ac008dc38bf09cbb746c230a46c69fe

          • C:\Users\Admin\AppData\Local\Temp\nsf2E55.tmp\nsExec.dll

            Filesize

            6KB

            MD5

            acc2b699edfea5bf5aae45aba3a41e96

            SHA1

            d2accf4d494e43ceb2cff69abe4dd17147d29cc2

            SHA256

            168a974eaa3f588d759db3f47c1a9fdc3494ba1fa1a73a84e5e3b2a4d58abd7e

            SHA512

            e29ea10ada98c71a18273b04f44f385b120d4e8473e441ce5748cfa44a23648814f2656f429b85440157988c88de776c6ac008dc38bf09cbb746c230a46c69fe

          • C:\Users\Admin\AppData\Local\Temp\nsf2E55.tmp\nsExec.dll

            Filesize

            6KB

            MD5

            acc2b699edfea5bf5aae45aba3a41e96

            SHA1

            d2accf4d494e43ceb2cff69abe4dd17147d29cc2

            SHA256

            168a974eaa3f588d759db3f47c1a9fdc3494ba1fa1a73a84e5e3b2a4d58abd7e

            SHA512

            e29ea10ada98c71a18273b04f44f385b120d4e8473e441ce5748cfa44a23648814f2656f429b85440157988c88de776c6ac008dc38bf09cbb746c230a46c69fe

          • C:\Windows\SysWOW64\hfnapi.dll

            Filesize

            106KB

            MD5

            a7a902def7263fb2d3d10d42b5335ec6

            SHA1

            04b5ca8bf1266f71cdbeebecc6fc030fe7fc2266

            SHA256

            6b8d671d246975b93b9deffc749ae4fc952291b1c6a8bfafb1cdf09745ec9672

            SHA512

            f811f3b1264d19960f788a1eaae6efb7ab1a67d88b05046bfb0e1009e33dc316fd415842cd0b24fdf10437ffd6addc269987ad0bb7125363273803647d88b133

          • C:\Windows\SysWOW64\hfnapi.dll

            Filesize

            106KB

            MD5

            a7a902def7263fb2d3d10d42b5335ec6

            SHA1

            04b5ca8bf1266f71cdbeebecc6fc030fe7fc2266

            SHA256

            6b8d671d246975b93b9deffc749ae4fc952291b1c6a8bfafb1cdf09745ec9672

            SHA512

            f811f3b1264d19960f788a1eaae6efb7ab1a67d88b05046bfb0e1009e33dc316fd415842cd0b24fdf10437ffd6addc269987ad0bb7125363273803647d88b133

          • C:\Windows\SysWOW64\hfnapi.dll

            Filesize

            106KB

            MD5

            a7a902def7263fb2d3d10d42b5335ec6

            SHA1

            04b5ca8bf1266f71cdbeebecc6fc030fe7fc2266

            SHA256

            6b8d671d246975b93b9deffc749ae4fc952291b1c6a8bfafb1cdf09745ec9672

            SHA512

            f811f3b1264d19960f788a1eaae6efb7ab1a67d88b05046bfb0e1009e33dc316fd415842cd0b24fdf10437ffd6addc269987ad0bb7125363273803647d88b133

          • C:\Windows\SysWOW64\hfnapi.dll

            Filesize

            106KB

            MD5

            a7a902def7263fb2d3d10d42b5335ec6

            SHA1

            04b5ca8bf1266f71cdbeebecc6fc030fe7fc2266

            SHA256

            6b8d671d246975b93b9deffc749ae4fc952291b1c6a8bfafb1cdf09745ec9672

            SHA512

            f811f3b1264d19960f788a1eaae6efb7ab1a67d88b05046bfb0e1009e33dc316fd415842cd0b24fdf10437ffd6addc269987ad0bb7125363273803647d88b133

          • C:\Windows\SysWOW64\hfpapi.dll

            Filesize

            241KB

            MD5

            ee6efae9d3efb85e46fe8a4b1a8e109b

            SHA1

            d5607b44125ca59d0c7c3341f58ded15ce4fcfcd

            SHA256

            f361d76f253c9a792153a8ce79a8e2789a87cc7fe5a0903bc41332a2cc4b9a41

            SHA512

            683dade2e14b11f2e27e2fcde0a55089fdfd859648a1d2f96fd7e70f58298598b50fd131f0da9b45620be676a193c71ed0e395eba067c80919084ec782255e35

          • C:\Windows\SysWOW64\hfpapi.dll

            Filesize

            241KB

            MD5

            ee6efae9d3efb85e46fe8a4b1a8e109b

            SHA1

            d5607b44125ca59d0c7c3341f58ded15ce4fcfcd

            SHA256

            f361d76f253c9a792153a8ce79a8e2789a87cc7fe5a0903bc41332a2cc4b9a41

            SHA512

            683dade2e14b11f2e27e2fcde0a55089fdfd859648a1d2f96fd7e70f58298598b50fd131f0da9b45620be676a193c71ed0e395eba067c80919084ec782255e35

          • C:\Windows\SysWOW64\hfpapi.dll

            Filesize

            241KB

            MD5

            ee6efae9d3efb85e46fe8a4b1a8e109b

            SHA1

            d5607b44125ca59d0c7c3341f58ded15ce4fcfcd

            SHA256

            f361d76f253c9a792153a8ce79a8e2789a87cc7fe5a0903bc41332a2cc4b9a41

            SHA512

            683dade2e14b11f2e27e2fcde0a55089fdfd859648a1d2f96fd7e70f58298598b50fd131f0da9b45620be676a193c71ed0e395eba067c80919084ec782255e35

          • C:\Windows\SysWOW64\installd.exe

            Filesize

            108KB

            MD5

            8bb07ba9132b0dbeb2b4232f54a43a03

            SHA1

            96bc63d32012b4af05328659ccb54b9c43cff34f

            SHA256

            672e43bf4ffa05844b228ba16d74739a262f6fff8e79185a188fcaac5733dbef

            SHA512

            7d34c02226faa9721e17d6edf3bfdd2450f104a33eb858961c54ec54c3c3d388342be06925e88863221903e2a55cf02576b51cb224ec7193c773e23e47efdf1b

          • C:\Windows\SysWOW64\installd.exe

            Filesize

            108KB

            MD5

            8bb07ba9132b0dbeb2b4232f54a43a03

            SHA1

            96bc63d32012b4af05328659ccb54b9c43cff34f

            SHA256

            672e43bf4ffa05844b228ba16d74739a262f6fff8e79185a188fcaac5733dbef

            SHA512

            7d34c02226faa9721e17d6edf3bfdd2450f104a33eb858961c54ec54c3c3d388342be06925e88863221903e2a55cf02576b51cb224ec7193c773e23e47efdf1b

          • C:\Windows\SysWOW64\nethtsrv.exe

            Filesize

            176KB

            MD5

            4a50891e6fc3fb1b112dd0ae0b6c2174

            SHA1

            da4d7c525dd6e39d0a7685b0eddb28392338111d

            SHA256

            011890e5d01643e45050fa282a2181fbe721727039878f76b367b95aca809f8f

            SHA512

            3edae70a0facc2543c3d6d02389a12097c8ba65e7a001c8f85c21bcdae1ce16ba5be63d50b0ce48afed53fc0bea2932b94617a4b602d231ef05183a1a21d7b04

          • C:\Windows\SysWOW64\nethtsrv.exe

            Filesize

            176KB

            MD5

            4a50891e6fc3fb1b112dd0ae0b6c2174

            SHA1

            da4d7c525dd6e39d0a7685b0eddb28392338111d

            SHA256

            011890e5d01643e45050fa282a2181fbe721727039878f76b367b95aca809f8f

            SHA512

            3edae70a0facc2543c3d6d02389a12097c8ba65e7a001c8f85c21bcdae1ce16ba5be63d50b0ce48afed53fc0bea2932b94617a4b602d231ef05183a1a21d7b04

          • C:\Windows\SysWOW64\nethtsrv.exe

            Filesize

            176KB

            MD5

            4a50891e6fc3fb1b112dd0ae0b6c2174

            SHA1

            da4d7c525dd6e39d0a7685b0eddb28392338111d

            SHA256

            011890e5d01643e45050fa282a2181fbe721727039878f76b367b95aca809f8f

            SHA512

            3edae70a0facc2543c3d6d02389a12097c8ba65e7a001c8f85c21bcdae1ce16ba5be63d50b0ce48afed53fc0bea2932b94617a4b602d231ef05183a1a21d7b04

          • C:\Windows\SysWOW64\netupdsrv.exe

            Filesize

            158KB

            MD5

            e0a06a3bf5d14d9630cdf6a72ecbd0d3

            SHA1

            d3242edef7c825f1d0beb806b7ead2f3aa3408fa

            SHA256

            4f0f0f8cae7ac416f0793174df898627adfc992c6de0a6223644122d176df8da

            SHA512

            ef873cd310449f42ccfd1b65a7faed221b4b46bcf52f10a8355457297f416e5b2028b16fe2a0ab59c7c62b007f0af5f6cd70e3bb4a87be34b58792f947727483

          • C:\Windows\SysWOW64\netupdsrv.exe

            Filesize

            158KB

            MD5

            e0a06a3bf5d14d9630cdf6a72ecbd0d3

            SHA1

            d3242edef7c825f1d0beb806b7ead2f3aa3408fa

            SHA256

            4f0f0f8cae7ac416f0793174df898627adfc992c6de0a6223644122d176df8da

            SHA512

            ef873cd310449f42ccfd1b65a7faed221b4b46bcf52f10a8355457297f416e5b2028b16fe2a0ab59c7c62b007f0af5f6cd70e3bb4a87be34b58792f947727483

          • C:\Windows\SysWOW64\netupdsrv.exe

            Filesize

            158KB

            MD5

            e0a06a3bf5d14d9630cdf6a72ecbd0d3

            SHA1

            d3242edef7c825f1d0beb806b7ead2f3aa3408fa

            SHA256

            4f0f0f8cae7ac416f0793174df898627adfc992c6de0a6223644122d176df8da

            SHA512

            ef873cd310449f42ccfd1b65a7faed221b4b46bcf52f10a8355457297f416e5b2028b16fe2a0ab59c7c62b007f0af5f6cd70e3bb4a87be34b58792f947727483

          • memory/2176-140-0x0000000000360000-0x00000000007BE000-memory.dmp

            Filesize

            4.4MB

          • memory/2176-171-0x0000000000360000-0x00000000007BE000-memory.dmp

            Filesize

            4.4MB