Analysis

  • max time kernel
    145s
  • max time network
    154s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20220812-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20220812-enlocale:en-usos:windows10-2004-x64system
  • submitted
    23-11-2022 10:30

General

  • Target

    2c84297c51a3e19a3f4cb1b54dee718ee326aa6f31631432196837cf0ca41d66.exe

  • Size

    603KB

  • MD5

    71f8d692537bfcba830715daecb80e59

  • SHA1

    29b80a8644ed015e925a8512f8917962bcfdd3bc

  • SHA256

    2c84297c51a3e19a3f4cb1b54dee718ee326aa6f31631432196837cf0ca41d66

  • SHA512

    2c8821a713928c50c946e41c799d9846467b48a7096986bb3f9f799cf35fa0ceb0c47db5c3a5ddd16e103f15a82ca38911fdd7d2e08850307d9835203da3ba4b

  • SSDEEP

    12288:mIny5DYTfIzN34rA/1YzkKcqv4XQflkXkEnUHM517ovesD5:IUTfoyrKycqv3flGkEnU2Mvl

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\2c84297c51a3e19a3f4cb1b54dee718ee326aa6f31631432196837cf0ca41d66.exe
    "C:\Users\Admin\AppData\Local\Temp\2c84297c51a3e19a3f4cb1b54dee718ee326aa6f31631432196837cf0ca41d66.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:1404
    • C:\Windows\SysWOW64\net.exe
      net stop nethttpservice
      2⤵
      • Suspicious use of WriteProcessMemory
      PID:4112
      • C:\Windows\SysWOW64\net1.exe
        C:\Windows\system32\net1 stop nethttpservice
        3⤵
          PID:1332
      • C:\Windows\SysWOW64\net.exe
        net stop serviceupdater
        2⤵
        • Suspicious use of WriteProcessMemory
        PID:4064
        • C:\Windows\SysWOW64\net1.exe
          C:\Windows\system32\net1 stop serviceupdater
          3⤵
            PID:3396
        • C:\Windows\SysWOW64\installd.exe
          "C:\Windows\system32\installd.exe" nethfdrv
          2⤵
          • Executes dropped EXE
          • Loads dropped DLL
          PID:4944
        • C:\Windows\SysWOW64\nethtsrv.exe
          "C:\Windows\system32\nethtsrv.exe" -nfdi
          2⤵
          • Executes dropped EXE
          • Loads dropped DLL
          PID:4904
        • C:\Windows\SysWOW64\netupdsrv.exe
          "C:\Windows\system32\netupdsrv.exe" -nfdi
          2⤵
          • Executes dropped EXE
          PID:5000
        • C:\Windows\SysWOW64\net.exe
          net start nethttpservice
          2⤵
          • Suspicious use of WriteProcessMemory
          PID:3800
          • C:\Windows\SysWOW64\net1.exe
            C:\Windows\system32\net1 start nethttpservice
            3⤵
              PID:2220
          • C:\Windows\SysWOW64\net.exe
            net start serviceupdater
            2⤵
            • Suspicious use of WriteProcessMemory
            PID:1420
            • C:\Windows\SysWOW64\net1.exe
              C:\Windows\system32\net1 start serviceupdater
              3⤵
                PID:5060
          • 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:2600
          • C:\Windows\SysWOW64\netupdsrv.exe
            C:\Windows\SysWOW64\netupdsrv.exe
            1⤵
            • Executes dropped EXE
            PID:2980

          Network

          MITRE ATT&CK Matrix ATT&CK v6

          Discovery

          Query Registry

          1
          T1012

          System Information Discovery

          1
          T1082

          Replay Monitor

          Loading Replay Monitor...

          Downloads

          • C:\Users\Admin\AppData\Local\Temp\nsp6F3B.tmp\System.dll
            Filesize

            11KB

            MD5

            c17103ae9072a06da581dec998343fc1

            SHA1

            b72148c6bdfaada8b8c3f950e610ee7cf1da1f8d

            SHA256

            dc58d8ad81cacb0c1ed72e33bff8f23ea40b5252b5bb55d393a0903e6819ae2f

            SHA512

            d32a71aaef18e993f28096d536e41c4d016850721b31171513ce28bbd805a54fd290b7c3e9d935f72e676a1acfb4f0dcc89d95040a0dd29f2b6975855c18986f

          • C:\Users\Admin\AppData\Local\Temp\nsp6F3B.tmp\nsExec.dll
            Filesize

            6KB

            MD5

            acc2b699edfea5bf5aae45aba3a41e96

            SHA1

            d2accf4d494e43ceb2cff69abe4dd17147d29cc2

            SHA256

            168a974eaa3f588d759db3f47c1a9fdc3494ba1fa1a73a84e5e3b2a4d58abd7e

            SHA512

            e29ea10ada98c71a18273b04f44f385b120d4e8473e441ce5748cfa44a23648814f2656f429b85440157988c88de776c6ac008dc38bf09cbb746c230a46c69fe

          • C:\Users\Admin\AppData\Local\Temp\nsp6F3B.tmp\nsExec.dll
            Filesize

            6KB

            MD5

            acc2b699edfea5bf5aae45aba3a41e96

            SHA1

            d2accf4d494e43ceb2cff69abe4dd17147d29cc2

            SHA256

            168a974eaa3f588d759db3f47c1a9fdc3494ba1fa1a73a84e5e3b2a4d58abd7e

            SHA512

            e29ea10ada98c71a18273b04f44f385b120d4e8473e441ce5748cfa44a23648814f2656f429b85440157988c88de776c6ac008dc38bf09cbb746c230a46c69fe

          • C:\Users\Admin\AppData\Local\Temp\nsp6F3B.tmp\nsExec.dll
            Filesize

            6KB

            MD5

            acc2b699edfea5bf5aae45aba3a41e96

            SHA1

            d2accf4d494e43ceb2cff69abe4dd17147d29cc2

            SHA256

            168a974eaa3f588d759db3f47c1a9fdc3494ba1fa1a73a84e5e3b2a4d58abd7e

            SHA512

            e29ea10ada98c71a18273b04f44f385b120d4e8473e441ce5748cfa44a23648814f2656f429b85440157988c88de776c6ac008dc38bf09cbb746c230a46c69fe

          • C:\Users\Admin\AppData\Local\Temp\nsp6F3B.tmp\nsExec.dll
            Filesize

            6KB

            MD5

            acc2b699edfea5bf5aae45aba3a41e96

            SHA1

            d2accf4d494e43ceb2cff69abe4dd17147d29cc2

            SHA256

            168a974eaa3f588d759db3f47c1a9fdc3494ba1fa1a73a84e5e3b2a4d58abd7e

            SHA512

            e29ea10ada98c71a18273b04f44f385b120d4e8473e441ce5748cfa44a23648814f2656f429b85440157988c88de776c6ac008dc38bf09cbb746c230a46c69fe

          • C:\Users\Admin\AppData\Local\Temp\nsp6F3B.tmp\nsExec.dll
            Filesize

            6KB

            MD5

            acc2b699edfea5bf5aae45aba3a41e96

            SHA1

            d2accf4d494e43ceb2cff69abe4dd17147d29cc2

            SHA256

            168a974eaa3f588d759db3f47c1a9fdc3494ba1fa1a73a84e5e3b2a4d58abd7e

            SHA512

            e29ea10ada98c71a18273b04f44f385b120d4e8473e441ce5748cfa44a23648814f2656f429b85440157988c88de776c6ac008dc38bf09cbb746c230a46c69fe

          • C:\Users\Admin\AppData\Local\Temp\nsp6F3B.tmp\nsExec.dll
            Filesize

            6KB

            MD5

            acc2b699edfea5bf5aae45aba3a41e96

            SHA1

            d2accf4d494e43ceb2cff69abe4dd17147d29cc2

            SHA256

            168a974eaa3f588d759db3f47c1a9fdc3494ba1fa1a73a84e5e3b2a4d58abd7e

            SHA512

            e29ea10ada98c71a18273b04f44f385b120d4e8473e441ce5748cfa44a23648814f2656f429b85440157988c88de776c6ac008dc38bf09cbb746c230a46c69fe

          • C:\Users\Admin\AppData\Local\Temp\nsp6F3B.tmp\nsExec.dll
            Filesize

            6KB

            MD5

            acc2b699edfea5bf5aae45aba3a41e96

            SHA1

            d2accf4d494e43ceb2cff69abe4dd17147d29cc2

            SHA256

            168a974eaa3f588d759db3f47c1a9fdc3494ba1fa1a73a84e5e3b2a4d58abd7e

            SHA512

            e29ea10ada98c71a18273b04f44f385b120d4e8473e441ce5748cfa44a23648814f2656f429b85440157988c88de776c6ac008dc38bf09cbb746c230a46c69fe

          • C:\Users\Admin\AppData\Local\Temp\nsp6F3B.tmp\nsExec.dll
            Filesize

            6KB

            MD5

            acc2b699edfea5bf5aae45aba3a41e96

            SHA1

            d2accf4d494e43ceb2cff69abe4dd17147d29cc2

            SHA256

            168a974eaa3f588d759db3f47c1a9fdc3494ba1fa1a73a84e5e3b2a4d58abd7e

            SHA512

            e29ea10ada98c71a18273b04f44f385b120d4e8473e441ce5748cfa44a23648814f2656f429b85440157988c88de776c6ac008dc38bf09cbb746c230a46c69fe

          • C:\Windows\SysWOW64\hfnapi.dll
            Filesize

            106KB

            MD5

            3503392762729e640f805f8207ef47fa

            SHA1

            fa16963d552509af3ebc25341a86da07dfe94681

            SHA256

            124b2828887f71b2657d8096db51fb198cfa53c1f6091469486ac6dae61208ee

            SHA512

            39365f40610b7156d8a046b076d10b01446b9d9d5030d43fc96a76939458e0084e7e7a66210e6bb990207dd4e65ff66d2d78dd985cfddecbd4766792bb48deaa

          • C:\Windows\SysWOW64\hfnapi.dll
            Filesize

            106KB

            MD5

            3503392762729e640f805f8207ef47fa

            SHA1

            fa16963d552509af3ebc25341a86da07dfe94681

            SHA256

            124b2828887f71b2657d8096db51fb198cfa53c1f6091469486ac6dae61208ee

            SHA512

            39365f40610b7156d8a046b076d10b01446b9d9d5030d43fc96a76939458e0084e7e7a66210e6bb990207dd4e65ff66d2d78dd985cfddecbd4766792bb48deaa

          • C:\Windows\SysWOW64\hfnapi.dll
            Filesize

            106KB

            MD5

            3503392762729e640f805f8207ef47fa

            SHA1

            fa16963d552509af3ebc25341a86da07dfe94681

            SHA256

            124b2828887f71b2657d8096db51fb198cfa53c1f6091469486ac6dae61208ee

            SHA512

            39365f40610b7156d8a046b076d10b01446b9d9d5030d43fc96a76939458e0084e7e7a66210e6bb990207dd4e65ff66d2d78dd985cfddecbd4766792bb48deaa

          • C:\Windows\SysWOW64\hfnapi.dll
            Filesize

            106KB

            MD5

            3503392762729e640f805f8207ef47fa

            SHA1

            fa16963d552509af3ebc25341a86da07dfe94681

            SHA256

            124b2828887f71b2657d8096db51fb198cfa53c1f6091469486ac6dae61208ee

            SHA512

            39365f40610b7156d8a046b076d10b01446b9d9d5030d43fc96a76939458e0084e7e7a66210e6bb990207dd4e65ff66d2d78dd985cfddecbd4766792bb48deaa

          • C:\Windows\SysWOW64\hfpapi.dll
            Filesize

            244KB

            MD5

            b42ff90cf5abbfb9e90cefa8c9344ae6

            SHA1

            9bb18b829dcb938f947ea593c5a5d9cc7ce63031

            SHA256

            99ff44c3c3802e6fc9866c92386ebf30c40861b3fa20dfdbe2a2af228b0e27cf

            SHA512

            d05ed91134089d3598742554ad987a191531d242698dbdad95860dd1cfab4781fe7408fd14d2633ac135818a9239d0d00a09124d8e487904dfdff5275689299b

          • C:\Windows\SysWOW64\hfpapi.dll
            Filesize

            244KB

            MD5

            b42ff90cf5abbfb9e90cefa8c9344ae6

            SHA1

            9bb18b829dcb938f947ea593c5a5d9cc7ce63031

            SHA256

            99ff44c3c3802e6fc9866c92386ebf30c40861b3fa20dfdbe2a2af228b0e27cf

            SHA512

            d05ed91134089d3598742554ad987a191531d242698dbdad95860dd1cfab4781fe7408fd14d2633ac135818a9239d0d00a09124d8e487904dfdff5275689299b

          • C:\Windows\SysWOW64\hfpapi.dll
            Filesize

            244KB

            MD5

            b42ff90cf5abbfb9e90cefa8c9344ae6

            SHA1

            9bb18b829dcb938f947ea593c5a5d9cc7ce63031

            SHA256

            99ff44c3c3802e6fc9866c92386ebf30c40861b3fa20dfdbe2a2af228b0e27cf

            SHA512

            d05ed91134089d3598742554ad987a191531d242698dbdad95860dd1cfab4781fe7408fd14d2633ac135818a9239d0d00a09124d8e487904dfdff5275689299b

          • C:\Windows\SysWOW64\installd.exe
            Filesize

            108KB

            MD5

            b0f087103a4bd7fe6155e5766bd4aef5

            SHA1

            4a9f9b5693c61ca10e93b52761bfa1fd3d0535ee

            SHA256

            9048fbd5be01387c1c2bf4b33a5e774d12ec08112cdaee71e6cd50d295125e58

            SHA512

            1ada88c8cacac3f6a4547cffe13360ca864d617b7329e7164ea810177c6b1a5ff69c2f3b63cdedf43d4b8f8569ceca2d8395abb85eb3c082407999f8ae201fc5

          • C:\Windows\SysWOW64\installd.exe
            Filesize

            108KB

            MD5

            b0f087103a4bd7fe6155e5766bd4aef5

            SHA1

            4a9f9b5693c61ca10e93b52761bfa1fd3d0535ee

            SHA256

            9048fbd5be01387c1c2bf4b33a5e774d12ec08112cdaee71e6cd50d295125e58

            SHA512

            1ada88c8cacac3f6a4547cffe13360ca864d617b7329e7164ea810177c6b1a5ff69c2f3b63cdedf43d4b8f8569ceca2d8395abb85eb3c082407999f8ae201fc5

          • C:\Windows\SysWOW64\nethtsrv.exe
            Filesize

            176KB

            MD5

            35a382983be47f8ca6e7e806cef0c494

            SHA1

            2f046f562f4918fce35a4c1fd32612e17163f3a1

            SHA256

            a6ca96266c4d7611264ddcd73fbfb5c1c4d7edf1a959d5effee7a91c92751464

            SHA512

            057870d3cc7fb20bf7ed7f1a8f1431d2026a87fddc8d239744b8e622447c7674bbc996294a77749a2de469c713ac65e3d2ae6b69bf1c5d992120ff4a5b5e8283

          • C:\Windows\SysWOW64\nethtsrv.exe
            Filesize

            176KB

            MD5

            35a382983be47f8ca6e7e806cef0c494

            SHA1

            2f046f562f4918fce35a4c1fd32612e17163f3a1

            SHA256

            a6ca96266c4d7611264ddcd73fbfb5c1c4d7edf1a959d5effee7a91c92751464

            SHA512

            057870d3cc7fb20bf7ed7f1a8f1431d2026a87fddc8d239744b8e622447c7674bbc996294a77749a2de469c713ac65e3d2ae6b69bf1c5d992120ff4a5b5e8283

          • C:\Windows\SysWOW64\nethtsrv.exe
            Filesize

            176KB

            MD5

            35a382983be47f8ca6e7e806cef0c494

            SHA1

            2f046f562f4918fce35a4c1fd32612e17163f3a1

            SHA256

            a6ca96266c4d7611264ddcd73fbfb5c1c4d7edf1a959d5effee7a91c92751464

            SHA512

            057870d3cc7fb20bf7ed7f1a8f1431d2026a87fddc8d239744b8e622447c7674bbc996294a77749a2de469c713ac65e3d2ae6b69bf1c5d992120ff4a5b5e8283

          • C:\Windows\SysWOW64\netupdsrv.exe
            Filesize

            158KB

            MD5

            f364c8cd08747764275cafe955db33a5

            SHA1

            aea2375de709cbda838e1673b71e447d4aa0bd35

            SHA256

            f736efd38bfc54bd46ca765dcec821affd559fdc74ba04d38b8bc3d7666b20bb

            SHA512

            df9677f57b47f4f5637b2a54f6718a4f84d0a1ee1fa6f57ab93767ebc3cef10d95e590f127a48a1cb47536c876e0d3797e2ae4a7074bb28db79ed43514873b1b

          • C:\Windows\SysWOW64\netupdsrv.exe
            Filesize

            158KB

            MD5

            f364c8cd08747764275cafe955db33a5

            SHA1

            aea2375de709cbda838e1673b71e447d4aa0bd35

            SHA256

            f736efd38bfc54bd46ca765dcec821affd559fdc74ba04d38b8bc3d7666b20bb

            SHA512

            df9677f57b47f4f5637b2a54f6718a4f84d0a1ee1fa6f57ab93767ebc3cef10d95e590f127a48a1cb47536c876e0d3797e2ae4a7074bb28db79ed43514873b1b

          • C:\Windows\SysWOW64\netupdsrv.exe
            Filesize

            158KB

            MD5

            f364c8cd08747764275cafe955db33a5

            SHA1

            aea2375de709cbda838e1673b71e447d4aa0bd35

            SHA256

            f736efd38bfc54bd46ca765dcec821affd559fdc74ba04d38b8bc3d7666b20bb

            SHA512

            df9677f57b47f4f5637b2a54f6718a4f84d0a1ee1fa6f57ab93767ebc3cef10d95e590f127a48a1cb47536c876e0d3797e2ae4a7074bb28db79ed43514873b1b

          • memory/1332-137-0x0000000000000000-mapping.dmp
          • memory/1404-168-0x0000000000360000-0x00000000007BE000-memory.dmp
            Filesize

            4.4MB

          • memory/1404-132-0x0000000000360000-0x00000000007BE000-memory.dmp
            Filesize

            4.4MB

          • memory/1420-165-0x0000000000000000-mapping.dmp
          • memory/2220-159-0x0000000000000000-mapping.dmp
          • memory/3396-141-0x0000000000000000-mapping.dmp
          • memory/3800-158-0x0000000000000000-mapping.dmp
          • memory/4064-140-0x0000000000000000-mapping.dmp
          • memory/4112-136-0x0000000000000000-mapping.dmp
          • memory/4904-147-0x0000000000000000-mapping.dmp
          • memory/4944-142-0x0000000000000000-mapping.dmp
          • memory/5000-153-0x0000000000000000-mapping.dmp
          • memory/5060-166-0x0000000000000000-mapping.dmp