Analysis

  • max time kernel
    191s
  • max time network
    196s
  • 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 10:11

General

  • Target

    d42f10387737cfad21a3707a2882aec03960d9dbc74617768588654793119527.exe

  • Size

    602KB

  • MD5

    5b1ffaff1a593c1550e6a0e9a26c9bb3

  • SHA1

    1045d1c184e9908d64de0f005905a97a6b3e1b2d

  • SHA256

    d42f10387737cfad21a3707a2882aec03960d9dbc74617768588654793119527

  • SHA512

    1d4a5eccb05bd46804cfc6b137d05c0d4eb47ea8dd01b361846979613ca335ff30ef47ed3e52d1f53b54d1dd601cce99517516a01e890d9c2389f400cb2e2a4e

  • SSDEEP

    12288:TIny5DYTgdGYJZy+e4fUTUSt4tmzUlA3J1dmqZ8r3TkNGu229yc1l:7UTgdGY936U3tc+YYgODIb22Uc1

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\d42f10387737cfad21a3707a2882aec03960d9dbc74617768588654793119527.exe
    "C:\Users\Admin\AppData\Local\Temp\d42f10387737cfad21a3707a2882aec03960d9dbc74617768588654793119527.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:4708
    • C:\Windows\SysWOW64\net.exe
      net stop nethttpservice
      2⤵
      • Suspicious use of WriteProcessMemory
      PID:4448
      • C:\Windows\SysWOW64\net1.exe
        C:\Windows\system32\net1 stop nethttpservice
        3⤵
          PID:4008
      • C:\Windows\SysWOW64\net.exe
        net stop serviceupdater
        2⤵
        • Suspicious use of WriteProcessMemory
        PID:4336
        • C:\Windows\SysWOW64\net1.exe
          C:\Windows\system32\net1 stop serviceupdater
          3⤵
            PID:3524
        • C:\Windows\SysWOW64\installd.exe
          "C:\Windows\system32\installd.exe" nethfdrv
          2⤵
          • Executes dropped EXE
          • Loads dropped DLL
          PID:4840
        • C:\Windows\SysWOW64\nethtsrv.exe
          "C:\Windows\system32\nethtsrv.exe" -nfdi
          2⤵
          • Executes dropped EXE
          • Loads dropped DLL
          PID:2736
        • C:\Windows\SysWOW64\netupdsrv.exe
          "C:\Windows\system32\netupdsrv.exe" -nfdi
          2⤵
          • Executes dropped EXE
          PID:4884
        • C:\Windows\SysWOW64\net.exe
          net start nethttpservice
          2⤵
          • Suspicious use of WriteProcessMemory
          PID:5052
          • C:\Windows\SysWOW64\net1.exe
            C:\Windows\system32\net1 start nethttpservice
            3⤵
              PID:3640
          • C:\Windows\SysWOW64\net.exe
            net start serviceupdater
            2⤵
            • Suspicious use of WriteProcessMemory
            PID:2912
            • C:\Windows\SysWOW64\net1.exe
              C:\Windows\system32\net1 start serviceupdater
              3⤵
                PID:3684
          • 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:4468
          • C:\Windows\SysWOW64\netupdsrv.exe
            C:\Windows\SysWOW64\netupdsrv.exe
            1⤵
            • Executes dropped EXE
            PID:1580

          Network

          MITRE ATT&CK Enterprise v6

          Replay Monitor

          Loading Replay Monitor...

          Downloads

          • C:\Users\Admin\AppData\Local\Temp\nszB884.tmp\System.dll

            Filesize

            11KB

            MD5

            c17103ae9072a06da581dec998343fc1

            SHA1

            b72148c6bdfaada8b8c3f950e610ee7cf1da1f8d

            SHA256

            dc58d8ad81cacb0c1ed72e33bff8f23ea40b5252b5bb55d393a0903e6819ae2f

            SHA512

            d32a71aaef18e993f28096d536e41c4d016850721b31171513ce28bbd805a54fd290b7c3e9d935f72e676a1acfb4f0dcc89d95040a0dd29f2b6975855c18986f

          • C:\Users\Admin\AppData\Local\Temp\nszB884.tmp\nsExec.dll

            Filesize

            6KB

            MD5

            acc2b699edfea5bf5aae45aba3a41e96

            SHA1

            d2accf4d494e43ceb2cff69abe4dd17147d29cc2

            SHA256

            168a974eaa3f588d759db3f47c1a9fdc3494ba1fa1a73a84e5e3b2a4d58abd7e

            SHA512

            e29ea10ada98c71a18273b04f44f385b120d4e8473e441ce5748cfa44a23648814f2656f429b85440157988c88de776c6ac008dc38bf09cbb746c230a46c69fe

          • C:\Users\Admin\AppData\Local\Temp\nszB884.tmp\nsExec.dll

            Filesize

            6KB

            MD5

            acc2b699edfea5bf5aae45aba3a41e96

            SHA1

            d2accf4d494e43ceb2cff69abe4dd17147d29cc2

            SHA256

            168a974eaa3f588d759db3f47c1a9fdc3494ba1fa1a73a84e5e3b2a4d58abd7e

            SHA512

            e29ea10ada98c71a18273b04f44f385b120d4e8473e441ce5748cfa44a23648814f2656f429b85440157988c88de776c6ac008dc38bf09cbb746c230a46c69fe

          • C:\Users\Admin\AppData\Local\Temp\nszB884.tmp\nsExec.dll

            Filesize

            6KB

            MD5

            acc2b699edfea5bf5aae45aba3a41e96

            SHA1

            d2accf4d494e43ceb2cff69abe4dd17147d29cc2

            SHA256

            168a974eaa3f588d759db3f47c1a9fdc3494ba1fa1a73a84e5e3b2a4d58abd7e

            SHA512

            e29ea10ada98c71a18273b04f44f385b120d4e8473e441ce5748cfa44a23648814f2656f429b85440157988c88de776c6ac008dc38bf09cbb746c230a46c69fe

          • C:\Users\Admin\AppData\Local\Temp\nszB884.tmp\nsExec.dll

            Filesize

            6KB

            MD5

            acc2b699edfea5bf5aae45aba3a41e96

            SHA1

            d2accf4d494e43ceb2cff69abe4dd17147d29cc2

            SHA256

            168a974eaa3f588d759db3f47c1a9fdc3494ba1fa1a73a84e5e3b2a4d58abd7e

            SHA512

            e29ea10ada98c71a18273b04f44f385b120d4e8473e441ce5748cfa44a23648814f2656f429b85440157988c88de776c6ac008dc38bf09cbb746c230a46c69fe

          • C:\Users\Admin\AppData\Local\Temp\nszB884.tmp\nsExec.dll

            Filesize

            6KB

            MD5

            acc2b699edfea5bf5aae45aba3a41e96

            SHA1

            d2accf4d494e43ceb2cff69abe4dd17147d29cc2

            SHA256

            168a974eaa3f588d759db3f47c1a9fdc3494ba1fa1a73a84e5e3b2a4d58abd7e

            SHA512

            e29ea10ada98c71a18273b04f44f385b120d4e8473e441ce5748cfa44a23648814f2656f429b85440157988c88de776c6ac008dc38bf09cbb746c230a46c69fe

          • C:\Users\Admin\AppData\Local\Temp\nszB884.tmp\nsExec.dll

            Filesize

            6KB

            MD5

            acc2b699edfea5bf5aae45aba3a41e96

            SHA1

            d2accf4d494e43ceb2cff69abe4dd17147d29cc2

            SHA256

            168a974eaa3f588d759db3f47c1a9fdc3494ba1fa1a73a84e5e3b2a4d58abd7e

            SHA512

            e29ea10ada98c71a18273b04f44f385b120d4e8473e441ce5748cfa44a23648814f2656f429b85440157988c88de776c6ac008dc38bf09cbb746c230a46c69fe

          • C:\Users\Admin\AppData\Local\Temp\nszB884.tmp\nsExec.dll

            Filesize

            6KB

            MD5

            acc2b699edfea5bf5aae45aba3a41e96

            SHA1

            d2accf4d494e43ceb2cff69abe4dd17147d29cc2

            SHA256

            168a974eaa3f588d759db3f47c1a9fdc3494ba1fa1a73a84e5e3b2a4d58abd7e

            SHA512

            e29ea10ada98c71a18273b04f44f385b120d4e8473e441ce5748cfa44a23648814f2656f429b85440157988c88de776c6ac008dc38bf09cbb746c230a46c69fe

          • C:\Users\Admin\AppData\Local\Temp\nszB884.tmp\nsExec.dll

            Filesize

            6KB

            MD5

            acc2b699edfea5bf5aae45aba3a41e96

            SHA1

            d2accf4d494e43ceb2cff69abe4dd17147d29cc2

            SHA256

            168a974eaa3f588d759db3f47c1a9fdc3494ba1fa1a73a84e5e3b2a4d58abd7e

            SHA512

            e29ea10ada98c71a18273b04f44f385b120d4e8473e441ce5748cfa44a23648814f2656f429b85440157988c88de776c6ac008dc38bf09cbb746c230a46c69fe

          • C:\Windows\SysWOW64\hfnapi.dll

            Filesize

            106KB

            MD5

            22b7724a0f888be0fce4ebea31f5d9fc

            SHA1

            d6f30c96fbd0c410cfec8ab593e297627f48a3d9

            SHA256

            4ff3560aaaa28703814f9526f2ad8ae5b9951e1b5d04d32bd206ca31dad72cd4

            SHA512

            dd6624b0d37602d930751f93d864895b2eadfd478134f2cd3492402d08a257ffe84f2b95a02b6d83f3bd4673ba881e6c804ecc609a83ecf8de9cd2604d68ab4c

          • C:\Windows\SysWOW64\hfnapi.dll

            Filesize

            106KB

            MD5

            22b7724a0f888be0fce4ebea31f5d9fc

            SHA1

            d6f30c96fbd0c410cfec8ab593e297627f48a3d9

            SHA256

            4ff3560aaaa28703814f9526f2ad8ae5b9951e1b5d04d32bd206ca31dad72cd4

            SHA512

            dd6624b0d37602d930751f93d864895b2eadfd478134f2cd3492402d08a257ffe84f2b95a02b6d83f3bd4673ba881e6c804ecc609a83ecf8de9cd2604d68ab4c

          • C:\Windows\SysWOW64\hfnapi.dll

            Filesize

            106KB

            MD5

            22b7724a0f888be0fce4ebea31f5d9fc

            SHA1

            d6f30c96fbd0c410cfec8ab593e297627f48a3d9

            SHA256

            4ff3560aaaa28703814f9526f2ad8ae5b9951e1b5d04d32bd206ca31dad72cd4

            SHA512

            dd6624b0d37602d930751f93d864895b2eadfd478134f2cd3492402d08a257ffe84f2b95a02b6d83f3bd4673ba881e6c804ecc609a83ecf8de9cd2604d68ab4c

          • C:\Windows\SysWOW64\hfnapi.dll

            Filesize

            106KB

            MD5

            22b7724a0f888be0fce4ebea31f5d9fc

            SHA1

            d6f30c96fbd0c410cfec8ab593e297627f48a3d9

            SHA256

            4ff3560aaaa28703814f9526f2ad8ae5b9951e1b5d04d32bd206ca31dad72cd4

            SHA512

            dd6624b0d37602d930751f93d864895b2eadfd478134f2cd3492402d08a257ffe84f2b95a02b6d83f3bd4673ba881e6c804ecc609a83ecf8de9cd2604d68ab4c

          • C:\Windows\SysWOW64\hfpapi.dll

            Filesize

            241KB

            MD5

            61dcf1b7cef20e55126ebbf2b0918392

            SHA1

            8ec8a0301ccac9b6138f54a041dfbfbe45e32628

            SHA256

            1d7f77313319f43b0f7a3338cc983bce7dc9a3770a70d74a6c3514770acdaff2

            SHA512

            a8816d209ab7c03499ed7a4c7642693a4aa6a75079d92f20cb4a233650dfc54b9eeb29cab2e78ec6dc580ac711e52955163d2ae9670f51df7cf2716ebf38db02

          • C:\Windows\SysWOW64\hfpapi.dll

            Filesize

            241KB

            MD5

            61dcf1b7cef20e55126ebbf2b0918392

            SHA1

            8ec8a0301ccac9b6138f54a041dfbfbe45e32628

            SHA256

            1d7f77313319f43b0f7a3338cc983bce7dc9a3770a70d74a6c3514770acdaff2

            SHA512

            a8816d209ab7c03499ed7a4c7642693a4aa6a75079d92f20cb4a233650dfc54b9eeb29cab2e78ec6dc580ac711e52955163d2ae9670f51df7cf2716ebf38db02

          • C:\Windows\SysWOW64\hfpapi.dll

            Filesize

            241KB

            MD5

            61dcf1b7cef20e55126ebbf2b0918392

            SHA1

            8ec8a0301ccac9b6138f54a041dfbfbe45e32628

            SHA256

            1d7f77313319f43b0f7a3338cc983bce7dc9a3770a70d74a6c3514770acdaff2

            SHA512

            a8816d209ab7c03499ed7a4c7642693a4aa6a75079d92f20cb4a233650dfc54b9eeb29cab2e78ec6dc580ac711e52955163d2ae9670f51df7cf2716ebf38db02

          • C:\Windows\SysWOW64\installd.exe

            Filesize

            108KB

            MD5

            bef933063ae880a6690b101646d8fd1b

            SHA1

            926a4d087d436eac034ab998cf6ed7fca5cfe700

            SHA256

            d9be69b375b88dcb796a108104760dc7186e4cd78e05f33f4ed877cd8d48fffd

            SHA512

            b9e26c67db3364204e713c0a4024ad30a11c3cc07cff9e9f3ab65cb539f1e6701fdb9a7042cc87ddd90d2ab0d37b953bd77b78a4a0c5dbb680af83d9d0dd5abe

          • C:\Windows\SysWOW64\installd.exe

            Filesize

            108KB

            MD5

            bef933063ae880a6690b101646d8fd1b

            SHA1

            926a4d087d436eac034ab998cf6ed7fca5cfe700

            SHA256

            d9be69b375b88dcb796a108104760dc7186e4cd78e05f33f4ed877cd8d48fffd

            SHA512

            b9e26c67db3364204e713c0a4024ad30a11c3cc07cff9e9f3ab65cb539f1e6701fdb9a7042cc87ddd90d2ab0d37b953bd77b78a4a0c5dbb680af83d9d0dd5abe

          • C:\Windows\SysWOW64\nethtsrv.exe

            Filesize

            176KB

            MD5

            552f885c3700bac809f32f5bbbbf4cd6

            SHA1

            b64990be3cf068ef0247134dd4fb602e86562a81

            SHA256

            58a400f77d1e3077e4b0f76811ff2a11f00488d118bbe7067b58262bf02f3b94

            SHA512

            119b948f6291d1ec9060cf97645d8b03b1731d8f986e1a12369504343e08f27f6f927fde43efda66367fbd44d77634febc3cfdd3c2aa20e3575fee8cd6670479

          • C:\Windows\SysWOW64\nethtsrv.exe

            Filesize

            176KB

            MD5

            552f885c3700bac809f32f5bbbbf4cd6

            SHA1

            b64990be3cf068ef0247134dd4fb602e86562a81

            SHA256

            58a400f77d1e3077e4b0f76811ff2a11f00488d118bbe7067b58262bf02f3b94

            SHA512

            119b948f6291d1ec9060cf97645d8b03b1731d8f986e1a12369504343e08f27f6f927fde43efda66367fbd44d77634febc3cfdd3c2aa20e3575fee8cd6670479

          • C:\Windows\SysWOW64\nethtsrv.exe

            Filesize

            176KB

            MD5

            552f885c3700bac809f32f5bbbbf4cd6

            SHA1

            b64990be3cf068ef0247134dd4fb602e86562a81

            SHA256

            58a400f77d1e3077e4b0f76811ff2a11f00488d118bbe7067b58262bf02f3b94

            SHA512

            119b948f6291d1ec9060cf97645d8b03b1731d8f986e1a12369504343e08f27f6f927fde43efda66367fbd44d77634febc3cfdd3c2aa20e3575fee8cd6670479

          • C:\Windows\SysWOW64\netupdsrv.exe

            Filesize

            158KB

            MD5

            97667304c1f3e8178348c5b00e25ccdc

            SHA1

            c93479fd76d895dc5ff766e30c190a25b75391e8

            SHA256

            ff998aeda9b1e6297976b58f1c57b3b58fafc554da59d2b553afca24e724d69e

            SHA512

            f4be50b1ea01cabfd9f650a12686de97845c34f460fcb8777f01a03497b5555a0c78bf806721b7cb1381a412db87baa6119b5b6bfed569a49bd724e5d4309b7a

          • C:\Windows\SysWOW64\netupdsrv.exe

            Filesize

            158KB

            MD5

            97667304c1f3e8178348c5b00e25ccdc

            SHA1

            c93479fd76d895dc5ff766e30c190a25b75391e8

            SHA256

            ff998aeda9b1e6297976b58f1c57b3b58fafc554da59d2b553afca24e724d69e

            SHA512

            f4be50b1ea01cabfd9f650a12686de97845c34f460fcb8777f01a03497b5555a0c78bf806721b7cb1381a412db87baa6119b5b6bfed569a49bd724e5d4309b7a

          • C:\Windows\SysWOW64\netupdsrv.exe

            Filesize

            158KB

            MD5

            97667304c1f3e8178348c5b00e25ccdc

            SHA1

            c93479fd76d895dc5ff766e30c190a25b75391e8

            SHA256

            ff998aeda9b1e6297976b58f1c57b3b58fafc554da59d2b553afca24e724d69e

            SHA512

            f4be50b1ea01cabfd9f650a12686de97845c34f460fcb8777f01a03497b5555a0c78bf806721b7cb1381a412db87baa6119b5b6bfed569a49bd724e5d4309b7a

          • memory/2736-147-0x0000000000000000-mapping.dmp

          • memory/2912-165-0x0000000000000000-mapping.dmp

          • memory/3524-141-0x0000000000000000-mapping.dmp

          • memory/3640-159-0x0000000000000000-mapping.dmp

          • memory/3684-166-0x0000000000000000-mapping.dmp

          • memory/4008-137-0x0000000000000000-mapping.dmp

          • memory/4336-140-0x0000000000000000-mapping.dmp

          • memory/4448-136-0x0000000000000000-mapping.dmp

          • memory/4708-132-0x0000000000360000-0x00000000007BE000-memory.dmp

            Filesize

            4.4MB

          • memory/4708-168-0x0000000000360000-0x00000000007BE000-memory.dmp

            Filesize

            4.4MB

          • memory/4840-142-0x0000000000000000-mapping.dmp

          • memory/4884-153-0x0000000000000000-mapping.dmp

          • memory/5052-158-0x0000000000000000-mapping.dmp