Analysis

  • max time kernel
    205s
  • max time network
    243s
  • 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 10:22

General

  • Target

    7549c953bb1cd15854c9f31be29eeb644d880526fbb9ece77e5fb1c42dc115e1.exe

  • Size

    601KB

  • MD5

    8f4d8ecf759732ef142b3b494caa0cd4

  • SHA1

    2053dcfa0a1a715f745f31011b19b9812cd09fbf

  • SHA256

    7549c953bb1cd15854c9f31be29eeb644d880526fbb9ece77e5fb1c42dc115e1

  • SHA512

    49b0519ff0623497f0397bc594730e9497a4d7c2008d6ce4ded15ab7bcfd505326632b01c1376ec17fd2d3d6489aa1421762125a83ca265d56922e55a3fc8a4d

  • SSDEEP

    12288:2Iny5DYT+rqcOJPdWtvMFy8xvWbhj2ixgoISpzzC:4UTAwJPhwiWFjfoSBzC

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\7549c953bb1cd15854c9f31be29eeb644d880526fbb9ece77e5fb1c42dc115e1.exe
    "C:\Users\Admin\AppData\Local\Temp\7549c953bb1cd15854c9f31be29eeb644d880526fbb9ece77e5fb1c42dc115e1.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:3164
    • C:\Windows\SysWOW64\net.exe
      net stop nethttpservice
      2⤵
      • Suspicious use of WriteProcessMemory
      PID:3312
      • C:\Windows\SysWOW64\net1.exe
        C:\Windows\system32\net1 stop nethttpservice
        3⤵
          PID:4324
      • C:\Windows\SysWOW64\net.exe
        net stop serviceupdater
        2⤵
        • Suspicious use of WriteProcessMemory
        PID:4004
        • C:\Windows\SysWOW64\net1.exe
          C:\Windows\system32\net1 stop serviceupdater
          3⤵
            PID:4212
        • C:\Windows\SysWOW64\installd.exe
          "C:\Windows\system32\installd.exe" nethfdrv
          2⤵
          • Executes dropped EXE
          • Loads dropped DLL
          PID:1864
        • C:\Windows\SysWOW64\nethtsrv.exe
          "C:\Windows\system32\nethtsrv.exe" -nfdi
          2⤵
          • Executes dropped EXE
          • Loads dropped DLL
          PID:1120
        • C:\Windows\SysWOW64\netupdsrv.exe
          "C:\Windows\system32\netupdsrv.exe" -nfdi
          2⤵
          • Executes dropped EXE
          PID:4572
        • C:\Windows\SysWOW64\net.exe
          net start nethttpservice
          2⤵
          • Suspicious use of WriteProcessMemory
          PID:5072
          • C:\Windows\SysWOW64\net1.exe
            C:\Windows\system32\net1 start nethttpservice
            3⤵
              PID:1904
          • C:\Windows\SysWOW64\net.exe
            net start serviceupdater
            2⤵
            • Suspicious use of WriteProcessMemory
            PID:1668
            • C:\Windows\SysWOW64\net1.exe
              C:\Windows\system32\net1 start serviceupdater
              3⤵
                PID:1296
          • 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:1388
          • C:\Windows\SysWOW64\netupdsrv.exe
            C:\Windows\SysWOW64\netupdsrv.exe
            1⤵
            • Executes dropped EXE
            PID:3916

          Network

          MITRE ATT&CK Enterprise v6

          Replay Monitor

          Loading Replay Monitor...

          Downloads

          • C:\Users\Admin\AppData\Local\Temp\nseF57E.tmp\System.dll

            Filesize

            11KB

            MD5

            c17103ae9072a06da581dec998343fc1

            SHA1

            b72148c6bdfaada8b8c3f950e610ee7cf1da1f8d

            SHA256

            dc58d8ad81cacb0c1ed72e33bff8f23ea40b5252b5bb55d393a0903e6819ae2f

            SHA512

            d32a71aaef18e993f28096d536e41c4d016850721b31171513ce28bbd805a54fd290b7c3e9d935f72e676a1acfb4f0dcc89d95040a0dd29f2b6975855c18986f

          • C:\Users\Admin\AppData\Local\Temp\nseF57E.tmp\nsExec.dll

            Filesize

            6KB

            MD5

            acc2b699edfea5bf5aae45aba3a41e96

            SHA1

            d2accf4d494e43ceb2cff69abe4dd17147d29cc2

            SHA256

            168a974eaa3f588d759db3f47c1a9fdc3494ba1fa1a73a84e5e3b2a4d58abd7e

            SHA512

            e29ea10ada98c71a18273b04f44f385b120d4e8473e441ce5748cfa44a23648814f2656f429b85440157988c88de776c6ac008dc38bf09cbb746c230a46c69fe

          • C:\Users\Admin\AppData\Local\Temp\nseF57E.tmp\nsExec.dll

            Filesize

            6KB

            MD5

            acc2b699edfea5bf5aae45aba3a41e96

            SHA1

            d2accf4d494e43ceb2cff69abe4dd17147d29cc2

            SHA256

            168a974eaa3f588d759db3f47c1a9fdc3494ba1fa1a73a84e5e3b2a4d58abd7e

            SHA512

            e29ea10ada98c71a18273b04f44f385b120d4e8473e441ce5748cfa44a23648814f2656f429b85440157988c88de776c6ac008dc38bf09cbb746c230a46c69fe

          • C:\Users\Admin\AppData\Local\Temp\nseF57E.tmp\nsExec.dll

            Filesize

            6KB

            MD5

            acc2b699edfea5bf5aae45aba3a41e96

            SHA1

            d2accf4d494e43ceb2cff69abe4dd17147d29cc2

            SHA256

            168a974eaa3f588d759db3f47c1a9fdc3494ba1fa1a73a84e5e3b2a4d58abd7e

            SHA512

            e29ea10ada98c71a18273b04f44f385b120d4e8473e441ce5748cfa44a23648814f2656f429b85440157988c88de776c6ac008dc38bf09cbb746c230a46c69fe

          • C:\Users\Admin\AppData\Local\Temp\nseF57E.tmp\nsExec.dll

            Filesize

            6KB

            MD5

            acc2b699edfea5bf5aae45aba3a41e96

            SHA1

            d2accf4d494e43ceb2cff69abe4dd17147d29cc2

            SHA256

            168a974eaa3f588d759db3f47c1a9fdc3494ba1fa1a73a84e5e3b2a4d58abd7e

            SHA512

            e29ea10ada98c71a18273b04f44f385b120d4e8473e441ce5748cfa44a23648814f2656f429b85440157988c88de776c6ac008dc38bf09cbb746c230a46c69fe

          • C:\Users\Admin\AppData\Local\Temp\nseF57E.tmp\nsExec.dll

            Filesize

            6KB

            MD5

            acc2b699edfea5bf5aae45aba3a41e96

            SHA1

            d2accf4d494e43ceb2cff69abe4dd17147d29cc2

            SHA256

            168a974eaa3f588d759db3f47c1a9fdc3494ba1fa1a73a84e5e3b2a4d58abd7e

            SHA512

            e29ea10ada98c71a18273b04f44f385b120d4e8473e441ce5748cfa44a23648814f2656f429b85440157988c88de776c6ac008dc38bf09cbb746c230a46c69fe

          • C:\Users\Admin\AppData\Local\Temp\nseF57E.tmp\nsExec.dll

            Filesize

            6KB

            MD5

            acc2b699edfea5bf5aae45aba3a41e96

            SHA1

            d2accf4d494e43ceb2cff69abe4dd17147d29cc2

            SHA256

            168a974eaa3f588d759db3f47c1a9fdc3494ba1fa1a73a84e5e3b2a4d58abd7e

            SHA512

            e29ea10ada98c71a18273b04f44f385b120d4e8473e441ce5748cfa44a23648814f2656f429b85440157988c88de776c6ac008dc38bf09cbb746c230a46c69fe

          • C:\Users\Admin\AppData\Local\Temp\nseF57E.tmp\nsExec.dll

            Filesize

            6KB

            MD5

            acc2b699edfea5bf5aae45aba3a41e96

            SHA1

            d2accf4d494e43ceb2cff69abe4dd17147d29cc2

            SHA256

            168a974eaa3f588d759db3f47c1a9fdc3494ba1fa1a73a84e5e3b2a4d58abd7e

            SHA512

            e29ea10ada98c71a18273b04f44f385b120d4e8473e441ce5748cfa44a23648814f2656f429b85440157988c88de776c6ac008dc38bf09cbb746c230a46c69fe

          • C:\Users\Admin\AppData\Local\Temp\nseF57E.tmp\nsExec.dll

            Filesize

            6KB

            MD5

            acc2b699edfea5bf5aae45aba3a41e96

            SHA1

            d2accf4d494e43ceb2cff69abe4dd17147d29cc2

            SHA256

            168a974eaa3f588d759db3f47c1a9fdc3494ba1fa1a73a84e5e3b2a4d58abd7e

            SHA512

            e29ea10ada98c71a18273b04f44f385b120d4e8473e441ce5748cfa44a23648814f2656f429b85440157988c88de776c6ac008dc38bf09cbb746c230a46c69fe

          • C:\Windows\SysWOW64\hfnapi.dll

            Filesize

            106KB

            MD5

            106022e05f63d3aa6c46fb4c385f45bc

            SHA1

            6f07dcf68a2a6b2283b5632e1d6ac29f7f15a38b

            SHA256

            022df7d557f3208a43375113af3b6cbe84d1956121767c5a45c398a8e24af595

            SHA512

            90e8aefc97af4152f1a0e6fe398ae0ffade60f06e16c5657eb4181430cf0bc7396595cfbadf695d22a01e12765e97d7fe9e125cdc7e50683fe009e47df98eb05

          • C:\Windows\SysWOW64\hfnapi.dll

            Filesize

            106KB

            MD5

            106022e05f63d3aa6c46fb4c385f45bc

            SHA1

            6f07dcf68a2a6b2283b5632e1d6ac29f7f15a38b

            SHA256

            022df7d557f3208a43375113af3b6cbe84d1956121767c5a45c398a8e24af595

            SHA512

            90e8aefc97af4152f1a0e6fe398ae0ffade60f06e16c5657eb4181430cf0bc7396595cfbadf695d22a01e12765e97d7fe9e125cdc7e50683fe009e47df98eb05

          • C:\Windows\SysWOW64\hfnapi.dll

            Filesize

            106KB

            MD5

            106022e05f63d3aa6c46fb4c385f45bc

            SHA1

            6f07dcf68a2a6b2283b5632e1d6ac29f7f15a38b

            SHA256

            022df7d557f3208a43375113af3b6cbe84d1956121767c5a45c398a8e24af595

            SHA512

            90e8aefc97af4152f1a0e6fe398ae0ffade60f06e16c5657eb4181430cf0bc7396595cfbadf695d22a01e12765e97d7fe9e125cdc7e50683fe009e47df98eb05

          • C:\Windows\SysWOW64\hfnapi.dll

            Filesize

            106KB

            MD5

            106022e05f63d3aa6c46fb4c385f45bc

            SHA1

            6f07dcf68a2a6b2283b5632e1d6ac29f7f15a38b

            SHA256

            022df7d557f3208a43375113af3b6cbe84d1956121767c5a45c398a8e24af595

            SHA512

            90e8aefc97af4152f1a0e6fe398ae0ffade60f06e16c5657eb4181430cf0bc7396595cfbadf695d22a01e12765e97d7fe9e125cdc7e50683fe009e47df98eb05

          • C:\Windows\SysWOW64\hfpapi.dll

            Filesize

            241KB

            MD5

            d8d61c2a10705dd9d1e4f9d0e5c1cabb

            SHA1

            602f4bf6e3aa0ffc541e9405cc24256fd7a8f85e

            SHA256

            586a36b4f36f9fd43eb2c2a1f21dd2f369e7a66ea44681ac19bce429f959985b

            SHA512

            3acf84fdee9b3e260d4207780bf3c883360c872cda434b56217a61916737e2875b857188e66bab81f16da0e07b68cfdd8645303ae91d8139c2105da9969af3e2

          • C:\Windows\SysWOW64\hfpapi.dll

            Filesize

            241KB

            MD5

            d8d61c2a10705dd9d1e4f9d0e5c1cabb

            SHA1

            602f4bf6e3aa0ffc541e9405cc24256fd7a8f85e

            SHA256

            586a36b4f36f9fd43eb2c2a1f21dd2f369e7a66ea44681ac19bce429f959985b

            SHA512

            3acf84fdee9b3e260d4207780bf3c883360c872cda434b56217a61916737e2875b857188e66bab81f16da0e07b68cfdd8645303ae91d8139c2105da9969af3e2

          • C:\Windows\SysWOW64\hfpapi.dll

            Filesize

            241KB

            MD5

            d8d61c2a10705dd9d1e4f9d0e5c1cabb

            SHA1

            602f4bf6e3aa0ffc541e9405cc24256fd7a8f85e

            SHA256

            586a36b4f36f9fd43eb2c2a1f21dd2f369e7a66ea44681ac19bce429f959985b

            SHA512

            3acf84fdee9b3e260d4207780bf3c883360c872cda434b56217a61916737e2875b857188e66bab81f16da0e07b68cfdd8645303ae91d8139c2105da9969af3e2

          • C:\Windows\SysWOW64\installd.exe

            Filesize

            108KB

            MD5

            d6989ad431c7d52bec4ae98da7576e45

            SHA1

            de0164affb67abf6e2756e63a2aba617dff2bb10

            SHA256

            b7639369ce01ae5aec2019f2c6522032fe28706e5395063bb91ca15ed0d5dd97

            SHA512

            809a1d8a7f16dfd38756eb2e5c0ba564fa8c1a9bfeeabdc3970f02dabbb989be2938b3085bd07f5fb1b813f20ec51c4403eebbb028dc92d801369e9f067ce65d

          • C:\Windows\SysWOW64\installd.exe

            Filesize

            108KB

            MD5

            d6989ad431c7d52bec4ae98da7576e45

            SHA1

            de0164affb67abf6e2756e63a2aba617dff2bb10

            SHA256

            b7639369ce01ae5aec2019f2c6522032fe28706e5395063bb91ca15ed0d5dd97

            SHA512

            809a1d8a7f16dfd38756eb2e5c0ba564fa8c1a9bfeeabdc3970f02dabbb989be2938b3085bd07f5fb1b813f20ec51c4403eebbb028dc92d801369e9f067ce65d

          • C:\Windows\SysWOW64\nethtsrv.exe

            Filesize

            176KB

            MD5

            118eaf39de46e75a89a20e057fa697b6

            SHA1

            5cc8b4c525a5ff26ee20f5fb3ba9cae11e1e1039

            SHA256

            6b11e9206fb79c4bf40b26cea51aa680e776ccbba30fe82cc5cfcd4bd7ae9cac

            SHA512

            f05e7cf0e3b61ed1fdd53b5aba7d38bc0c60460529b87bb0df2d41790e638ec885f914495de0ea41ac2a5d90a5372cfb202918b678e75eac1edba9d7410a2053

          • C:\Windows\SysWOW64\nethtsrv.exe

            Filesize

            176KB

            MD5

            118eaf39de46e75a89a20e057fa697b6

            SHA1

            5cc8b4c525a5ff26ee20f5fb3ba9cae11e1e1039

            SHA256

            6b11e9206fb79c4bf40b26cea51aa680e776ccbba30fe82cc5cfcd4bd7ae9cac

            SHA512

            f05e7cf0e3b61ed1fdd53b5aba7d38bc0c60460529b87bb0df2d41790e638ec885f914495de0ea41ac2a5d90a5372cfb202918b678e75eac1edba9d7410a2053

          • C:\Windows\SysWOW64\nethtsrv.exe

            Filesize

            176KB

            MD5

            118eaf39de46e75a89a20e057fa697b6

            SHA1

            5cc8b4c525a5ff26ee20f5fb3ba9cae11e1e1039

            SHA256

            6b11e9206fb79c4bf40b26cea51aa680e776ccbba30fe82cc5cfcd4bd7ae9cac

            SHA512

            f05e7cf0e3b61ed1fdd53b5aba7d38bc0c60460529b87bb0df2d41790e638ec885f914495de0ea41ac2a5d90a5372cfb202918b678e75eac1edba9d7410a2053

          • C:\Windows\SysWOW64\netupdsrv.exe

            Filesize

            158KB

            MD5

            f423c9357f9e9893d428997c735a6d6a

            SHA1

            5597f22fefb65402de6b706f9b25c825884b3edd

            SHA256

            7ef60dc895d035a158f5b15845312bec09ff4f7bb3e653be9d288d767d525498

            SHA512

            33dff7e385e57c1556bed3cd5ba91f3c83d6d47806a7839076597921da4345f5cda7fe46983647d3249491734f074662dd65fb9529489bf4d17aa7d5c60b17bd

          • C:\Windows\SysWOW64\netupdsrv.exe

            Filesize

            158KB

            MD5

            f423c9357f9e9893d428997c735a6d6a

            SHA1

            5597f22fefb65402de6b706f9b25c825884b3edd

            SHA256

            7ef60dc895d035a158f5b15845312bec09ff4f7bb3e653be9d288d767d525498

            SHA512

            33dff7e385e57c1556bed3cd5ba91f3c83d6d47806a7839076597921da4345f5cda7fe46983647d3249491734f074662dd65fb9529489bf4d17aa7d5c60b17bd

          • C:\Windows\SysWOW64\netupdsrv.exe

            Filesize

            158KB

            MD5

            f423c9357f9e9893d428997c735a6d6a

            SHA1

            5597f22fefb65402de6b706f9b25c825884b3edd

            SHA256

            7ef60dc895d035a158f5b15845312bec09ff4f7bb3e653be9d288d767d525498

            SHA512

            33dff7e385e57c1556bed3cd5ba91f3c83d6d47806a7839076597921da4345f5cda7fe46983647d3249491734f074662dd65fb9529489bf4d17aa7d5c60b17bd

          • memory/1120-147-0x0000000000000000-mapping.dmp

          • memory/1296-166-0x0000000000000000-mapping.dmp

          • memory/1668-165-0x0000000000000000-mapping.dmp

          • memory/1864-142-0x0000000000000000-mapping.dmp

          • memory/1904-159-0x0000000000000000-mapping.dmp

          • memory/3164-132-0x0000000000360000-0x00000000007BE000-memory.dmp

            Filesize

            4.4MB

          • memory/3164-168-0x0000000000360000-0x00000000007BE000-memory.dmp

            Filesize

            4.4MB

          • memory/3312-136-0x0000000000000000-mapping.dmp

          • memory/4004-140-0x0000000000000000-mapping.dmp

          • memory/4212-141-0x0000000000000000-mapping.dmp

          • memory/4324-137-0x0000000000000000-mapping.dmp

          • memory/4572-153-0x0000000000000000-mapping.dmp

          • memory/5072-158-0x0000000000000000-mapping.dmp