Analysis

  • max time kernel
    139s
  • max time network
    151s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20220812-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20220812-enlocale:en-usos:windows10-2004-x64system
  • submitted
    22/11/2022, 00:04

General

  • Target

    4d4f89de90041924382178a2e08c6b0421fd94b82d7a903efefc911458b848fd.exe

  • Size

    602KB

  • MD5

    980d1246cb73e2bb08801edf68490fe0

  • SHA1

    86a47b7e0462149528fadabf708c504f6d8741d0

  • SHA256

    4d4f89de90041924382178a2e08c6b0421fd94b82d7a903efefc911458b848fd

  • SHA512

    71415bbd3327fe2b1516c798f3d8358ba88e8a961a38964543b6c8c35687eb6a3a55a34ba13c2ed31564a300f73e6bc8e2ff97cec06d052b771f671e56872387

  • SSDEEP

    12288:cIny5DYTkIFpB9mO+OKzWnNKCafZb4ISEHrkPJM/:6UTk6b5HNKBpSEL4M

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\4d4f89de90041924382178a2e08c6b0421fd94b82d7a903efefc911458b848fd.exe
    "C:\Users\Admin\AppData\Local\Temp\4d4f89de90041924382178a2e08c6b0421fd94b82d7a903efefc911458b848fd.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:1912
    • C:\Windows\SysWOW64\net.exe
      net stop nethttpservice
      2⤵
      • Suspicious use of WriteProcessMemory
      PID:1028
      • C:\Windows\SysWOW64\net1.exe
        C:\Windows\system32\net1 stop nethttpservice
        3⤵
          PID:4412
      • C:\Windows\SysWOW64\net.exe
        net stop serviceupdater
        2⤵
        • Suspicious use of WriteProcessMemory
        PID:2460
        • C:\Windows\SysWOW64\net1.exe
          C:\Windows\system32\net1 stop serviceupdater
          3⤵
            PID:4736
        • C:\Windows\SysWOW64\installd.exe
          "C:\Windows\system32\installd.exe" nethfdrv
          2⤵
          • Executes dropped EXE
          • Loads dropped DLL
          PID:4548
        • C:\Windows\SysWOW64\nethtsrv.exe
          "C:\Windows\system32\nethtsrv.exe" -nfdi
          2⤵
          • Executes dropped EXE
          • Loads dropped DLL
          PID:4952
        • C:\Windows\SysWOW64\netupdsrv.exe
          "C:\Windows\system32\netupdsrv.exe" -nfdi
          2⤵
          • Executes dropped EXE
          PID:1620
        • C:\Windows\SysWOW64\net.exe
          net start nethttpservice
          2⤵
          • Suspicious use of WriteProcessMemory
          PID:1668
          • C:\Windows\SysWOW64\net1.exe
            C:\Windows\system32\net1 start nethttpservice
            3⤵
              PID:2012
          • C:\Windows\SysWOW64\net.exe
            net start serviceupdater
            2⤵
            • Suspicious use of WriteProcessMemory
            PID:4312
            • C:\Windows\SysWOW64\net1.exe
              C:\Windows\system32\net1 start serviceupdater
              3⤵
                PID:308
          • 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:3828
          • C:\Windows\SysWOW64\netupdsrv.exe
            C:\Windows\SysWOW64\netupdsrv.exe
            1⤵
            • Executes dropped EXE
            PID:1760

          Network

          MITRE ATT&CK Enterprise v6

          Replay Monitor

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          Downloads

          • C:\Users\Admin\AppData\Local\Temp\nsy7882.tmp\System.dll

            Filesize

            11KB

            MD5

            c17103ae9072a06da581dec998343fc1

            SHA1

            b72148c6bdfaada8b8c3f950e610ee7cf1da1f8d

            SHA256

            dc58d8ad81cacb0c1ed72e33bff8f23ea40b5252b5bb55d393a0903e6819ae2f

            SHA512

            d32a71aaef18e993f28096d536e41c4d016850721b31171513ce28bbd805a54fd290b7c3e9d935f72e676a1acfb4f0dcc89d95040a0dd29f2b6975855c18986f

          • C:\Users\Admin\AppData\Local\Temp\nsy7882.tmp\nsExec.dll

            Filesize

            6KB

            MD5

            acc2b699edfea5bf5aae45aba3a41e96

            SHA1

            d2accf4d494e43ceb2cff69abe4dd17147d29cc2

            SHA256

            168a974eaa3f588d759db3f47c1a9fdc3494ba1fa1a73a84e5e3b2a4d58abd7e

            SHA512

            e29ea10ada98c71a18273b04f44f385b120d4e8473e441ce5748cfa44a23648814f2656f429b85440157988c88de776c6ac008dc38bf09cbb746c230a46c69fe

          • C:\Users\Admin\AppData\Local\Temp\nsy7882.tmp\nsExec.dll

            Filesize

            6KB

            MD5

            acc2b699edfea5bf5aae45aba3a41e96

            SHA1

            d2accf4d494e43ceb2cff69abe4dd17147d29cc2

            SHA256

            168a974eaa3f588d759db3f47c1a9fdc3494ba1fa1a73a84e5e3b2a4d58abd7e

            SHA512

            e29ea10ada98c71a18273b04f44f385b120d4e8473e441ce5748cfa44a23648814f2656f429b85440157988c88de776c6ac008dc38bf09cbb746c230a46c69fe

          • C:\Users\Admin\AppData\Local\Temp\nsy7882.tmp\nsExec.dll

            Filesize

            6KB

            MD5

            acc2b699edfea5bf5aae45aba3a41e96

            SHA1

            d2accf4d494e43ceb2cff69abe4dd17147d29cc2

            SHA256

            168a974eaa3f588d759db3f47c1a9fdc3494ba1fa1a73a84e5e3b2a4d58abd7e

            SHA512

            e29ea10ada98c71a18273b04f44f385b120d4e8473e441ce5748cfa44a23648814f2656f429b85440157988c88de776c6ac008dc38bf09cbb746c230a46c69fe

          • C:\Users\Admin\AppData\Local\Temp\nsy7882.tmp\nsExec.dll

            Filesize

            6KB

            MD5

            acc2b699edfea5bf5aae45aba3a41e96

            SHA1

            d2accf4d494e43ceb2cff69abe4dd17147d29cc2

            SHA256

            168a974eaa3f588d759db3f47c1a9fdc3494ba1fa1a73a84e5e3b2a4d58abd7e

            SHA512

            e29ea10ada98c71a18273b04f44f385b120d4e8473e441ce5748cfa44a23648814f2656f429b85440157988c88de776c6ac008dc38bf09cbb746c230a46c69fe

          • C:\Users\Admin\AppData\Local\Temp\nsy7882.tmp\nsExec.dll

            Filesize

            6KB

            MD5

            acc2b699edfea5bf5aae45aba3a41e96

            SHA1

            d2accf4d494e43ceb2cff69abe4dd17147d29cc2

            SHA256

            168a974eaa3f588d759db3f47c1a9fdc3494ba1fa1a73a84e5e3b2a4d58abd7e

            SHA512

            e29ea10ada98c71a18273b04f44f385b120d4e8473e441ce5748cfa44a23648814f2656f429b85440157988c88de776c6ac008dc38bf09cbb746c230a46c69fe

          • C:\Users\Admin\AppData\Local\Temp\nsy7882.tmp\nsExec.dll

            Filesize

            6KB

            MD5

            acc2b699edfea5bf5aae45aba3a41e96

            SHA1

            d2accf4d494e43ceb2cff69abe4dd17147d29cc2

            SHA256

            168a974eaa3f588d759db3f47c1a9fdc3494ba1fa1a73a84e5e3b2a4d58abd7e

            SHA512

            e29ea10ada98c71a18273b04f44f385b120d4e8473e441ce5748cfa44a23648814f2656f429b85440157988c88de776c6ac008dc38bf09cbb746c230a46c69fe

          • C:\Users\Admin\AppData\Local\Temp\nsy7882.tmp\nsExec.dll

            Filesize

            6KB

            MD5

            acc2b699edfea5bf5aae45aba3a41e96

            SHA1

            d2accf4d494e43ceb2cff69abe4dd17147d29cc2

            SHA256

            168a974eaa3f588d759db3f47c1a9fdc3494ba1fa1a73a84e5e3b2a4d58abd7e

            SHA512

            e29ea10ada98c71a18273b04f44f385b120d4e8473e441ce5748cfa44a23648814f2656f429b85440157988c88de776c6ac008dc38bf09cbb746c230a46c69fe

          • C:\Users\Admin\AppData\Local\Temp\nsy7882.tmp\nsExec.dll

            Filesize

            6KB

            MD5

            acc2b699edfea5bf5aae45aba3a41e96

            SHA1

            d2accf4d494e43ceb2cff69abe4dd17147d29cc2

            SHA256

            168a974eaa3f588d759db3f47c1a9fdc3494ba1fa1a73a84e5e3b2a4d58abd7e

            SHA512

            e29ea10ada98c71a18273b04f44f385b120d4e8473e441ce5748cfa44a23648814f2656f429b85440157988c88de776c6ac008dc38bf09cbb746c230a46c69fe

          • C:\Windows\SysWOW64\hfnapi.dll

            Filesize

            106KB

            MD5

            edcd52210a4486f1b6e142e5f950a833

            SHA1

            ffcbcb7941dd169401a9f52d12fe4a6f64a155d1

            SHA256

            9fc62a290ed4c708f8eec9b9e59329cb684f7ac6119bb1aa4379857c0cd63312

            SHA512

            820326cbcb9553f603df5337465b99b31ff8ce2750c53aa583f54d4e35a3d809fd751a043122b439a9e45c198b6c3898213b4e57200ef88072bbc7bb7d1d01bf

          • C:\Windows\SysWOW64\hfnapi.dll

            Filesize

            106KB

            MD5

            edcd52210a4486f1b6e142e5f950a833

            SHA1

            ffcbcb7941dd169401a9f52d12fe4a6f64a155d1

            SHA256

            9fc62a290ed4c708f8eec9b9e59329cb684f7ac6119bb1aa4379857c0cd63312

            SHA512

            820326cbcb9553f603df5337465b99b31ff8ce2750c53aa583f54d4e35a3d809fd751a043122b439a9e45c198b6c3898213b4e57200ef88072bbc7bb7d1d01bf

          • C:\Windows\SysWOW64\hfnapi.dll

            Filesize

            106KB

            MD5

            edcd52210a4486f1b6e142e5f950a833

            SHA1

            ffcbcb7941dd169401a9f52d12fe4a6f64a155d1

            SHA256

            9fc62a290ed4c708f8eec9b9e59329cb684f7ac6119bb1aa4379857c0cd63312

            SHA512

            820326cbcb9553f603df5337465b99b31ff8ce2750c53aa583f54d4e35a3d809fd751a043122b439a9e45c198b6c3898213b4e57200ef88072bbc7bb7d1d01bf

          • C:\Windows\SysWOW64\hfnapi.dll

            Filesize

            106KB

            MD5

            edcd52210a4486f1b6e142e5f950a833

            SHA1

            ffcbcb7941dd169401a9f52d12fe4a6f64a155d1

            SHA256

            9fc62a290ed4c708f8eec9b9e59329cb684f7ac6119bb1aa4379857c0cd63312

            SHA512

            820326cbcb9553f603df5337465b99b31ff8ce2750c53aa583f54d4e35a3d809fd751a043122b439a9e45c198b6c3898213b4e57200ef88072bbc7bb7d1d01bf

          • C:\Windows\SysWOW64\hfpapi.dll

            Filesize

            244KB

            MD5

            0f52da01f59932fe2359a26bd3ecfbaa

            SHA1

            2bd1b02e60bb2592764832433309103dc13b28d2

            SHA256

            18559c94c553a67cb4f43377c803f79c4b41534de32d6bccf7ca52092cdd58f7

            SHA512

            c76eac8747098c609b74b6ac4a622fd56990b8166feb4ed846255037228e073c409aeb59dd7cab0f14c9cac4a21cba9d4ddb997783f5a99c91a6cc8806cd021b

          • C:\Windows\SysWOW64\hfpapi.dll

            Filesize

            244KB

            MD5

            0f52da01f59932fe2359a26bd3ecfbaa

            SHA1

            2bd1b02e60bb2592764832433309103dc13b28d2

            SHA256

            18559c94c553a67cb4f43377c803f79c4b41534de32d6bccf7ca52092cdd58f7

            SHA512

            c76eac8747098c609b74b6ac4a622fd56990b8166feb4ed846255037228e073c409aeb59dd7cab0f14c9cac4a21cba9d4ddb997783f5a99c91a6cc8806cd021b

          • C:\Windows\SysWOW64\hfpapi.dll

            Filesize

            244KB

            MD5

            0f52da01f59932fe2359a26bd3ecfbaa

            SHA1

            2bd1b02e60bb2592764832433309103dc13b28d2

            SHA256

            18559c94c553a67cb4f43377c803f79c4b41534de32d6bccf7ca52092cdd58f7

            SHA512

            c76eac8747098c609b74b6ac4a622fd56990b8166feb4ed846255037228e073c409aeb59dd7cab0f14c9cac4a21cba9d4ddb997783f5a99c91a6cc8806cd021b

          • C:\Windows\SysWOW64\installd.exe

            Filesize

            108KB

            MD5

            87a10bb577100985cdb444d98ccd46d2

            SHA1

            4426a77a8934029bfddc16bb6d04e62d35eaed27

            SHA256

            71c1123f1a85acaee71924a4a9a0266cffdeb931d0b09239ec24f2f055d6bf69

            SHA512

            1be1920b021e3e7b36bb2555cf0c3086d47b88b4c8fe7b96bec7f324c3e6b4f2df033c12329c597848c92af9b8ad0233559e6a0bdbe90972f991bdeb55b3a670

          • C:\Windows\SysWOW64\installd.exe

            Filesize

            108KB

            MD5

            87a10bb577100985cdb444d98ccd46d2

            SHA1

            4426a77a8934029bfddc16bb6d04e62d35eaed27

            SHA256

            71c1123f1a85acaee71924a4a9a0266cffdeb931d0b09239ec24f2f055d6bf69

            SHA512

            1be1920b021e3e7b36bb2555cf0c3086d47b88b4c8fe7b96bec7f324c3e6b4f2df033c12329c597848c92af9b8ad0233559e6a0bdbe90972f991bdeb55b3a670

          • C:\Windows\SysWOW64\nethtsrv.exe

            Filesize

            176KB

            MD5

            dc5a5c6c8908f09b1420a508597f7faa

            SHA1

            f7678b5710ab1b1bb5a6db565f28700bc2fab072

            SHA256

            80b7fcc68d28f5507662de4a7f2a21cbbc2f13e26310768ca4df90688963ef72

            SHA512

            bb8fe5182dc439beb429d8e51463ff8e2d024b6870cc1e08cbe39a100eebe6c6d5c19b3ec2379dd8b0d27c545e54603fbe0bdcb8a936059d2d2b2b6f28069bca

          • C:\Windows\SysWOW64\nethtsrv.exe

            Filesize

            176KB

            MD5

            dc5a5c6c8908f09b1420a508597f7faa

            SHA1

            f7678b5710ab1b1bb5a6db565f28700bc2fab072

            SHA256

            80b7fcc68d28f5507662de4a7f2a21cbbc2f13e26310768ca4df90688963ef72

            SHA512

            bb8fe5182dc439beb429d8e51463ff8e2d024b6870cc1e08cbe39a100eebe6c6d5c19b3ec2379dd8b0d27c545e54603fbe0bdcb8a936059d2d2b2b6f28069bca

          • C:\Windows\SysWOW64\nethtsrv.exe

            Filesize

            176KB

            MD5

            dc5a5c6c8908f09b1420a508597f7faa

            SHA1

            f7678b5710ab1b1bb5a6db565f28700bc2fab072

            SHA256

            80b7fcc68d28f5507662de4a7f2a21cbbc2f13e26310768ca4df90688963ef72

            SHA512

            bb8fe5182dc439beb429d8e51463ff8e2d024b6870cc1e08cbe39a100eebe6c6d5c19b3ec2379dd8b0d27c545e54603fbe0bdcb8a936059d2d2b2b6f28069bca

          • C:\Windows\SysWOW64\netupdsrv.exe

            Filesize

            159KB

            MD5

            01ac9c65043f9014f6dd2206bacabf6b

            SHA1

            b8dc5ca8dc88b85cb3c0a03dca42b6654c423c83

            SHA256

            164829adf401a5d597399a5fa145ab89c7146eb5598f1a3efd01dc93fe6428be

            SHA512

            7c71e9d4ea25719e94566516893b227b3a0e0b157d4415f52fc5a27db8a05cdeb9fe4797987cd090d922fcb739df2e9d4bab9ef7beaf7887f66a1f0c9bff7040

          • C:\Windows\SysWOW64\netupdsrv.exe

            Filesize

            159KB

            MD5

            01ac9c65043f9014f6dd2206bacabf6b

            SHA1

            b8dc5ca8dc88b85cb3c0a03dca42b6654c423c83

            SHA256

            164829adf401a5d597399a5fa145ab89c7146eb5598f1a3efd01dc93fe6428be

            SHA512

            7c71e9d4ea25719e94566516893b227b3a0e0b157d4415f52fc5a27db8a05cdeb9fe4797987cd090d922fcb739df2e9d4bab9ef7beaf7887f66a1f0c9bff7040

          • C:\Windows\SysWOW64\netupdsrv.exe

            Filesize

            159KB

            MD5

            01ac9c65043f9014f6dd2206bacabf6b

            SHA1

            b8dc5ca8dc88b85cb3c0a03dca42b6654c423c83

            SHA256

            164829adf401a5d597399a5fa145ab89c7146eb5598f1a3efd01dc93fe6428be

            SHA512

            7c71e9d4ea25719e94566516893b227b3a0e0b157d4415f52fc5a27db8a05cdeb9fe4797987cd090d922fcb739df2e9d4bab9ef7beaf7887f66a1f0c9bff7040

          • memory/1912-141-0x0000000000360000-0x00000000007BE000-memory.dmp

            Filesize

            4.4MB

          • memory/1912-168-0x0000000000360000-0x00000000007BE000-memory.dmp

            Filesize

            4.4MB