Analysis

  • max time kernel
    180s
  • max time network
    185s
  • 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 10:18

General

  • Target

    9da0c4b289a9d819468741275cc0f0c7716f58a4244367ccb9feeca78f5cb4b1.exe

  • Size

    603KB

  • MD5

    49eeea103903424f8405e7d34910ddef

  • SHA1

    50b442720c76403b81845345007852df8ad72b27

  • SHA256

    9da0c4b289a9d819468741275cc0f0c7716f58a4244367ccb9feeca78f5cb4b1

  • SHA512

    87e6a0bd71d6a1af69c0c30d8007d602a3c4ad325eb4eb4cc8dcc3bfcd97c71cd0a06d40b8f9b2a80087c46fdc5ae80b3ef4f98df9b734db686a5e2379cb1061

  • SSDEEP

    12288:BIny5DYTMIf2/BhtzVPQc64ajT6Bx0tJUTZJ6HAh+f:9UTMI2lBQc6t6Bx0MZJI7f

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\9da0c4b289a9d819468741275cc0f0c7716f58a4244367ccb9feeca78f5cb4b1.exe
    "C:\Users\Admin\AppData\Local\Temp\9da0c4b289a9d819468741275cc0f0c7716f58a4244367ccb9feeca78f5cb4b1.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:3792
    • C:\Windows\SysWOW64\net.exe
      net stop nethttpservice
      2⤵
      • Suspicious use of WriteProcessMemory
      PID:2912
      • C:\Windows\SysWOW64\net1.exe
        C:\Windows\system32\net1 stop nethttpservice
        3⤵
          PID:1424
      • C:\Windows\SysWOW64\net.exe
        net stop serviceupdater
        2⤵
        • Suspicious use of WriteProcessMemory
        PID:2916
        • C:\Windows\SysWOW64\net1.exe
          C:\Windows\system32\net1 stop serviceupdater
          3⤵
            PID:3288
        • C:\Windows\SysWOW64\installd.exe
          "C:\Windows\system32\installd.exe" nethfdrv
          2⤵
          • Executes dropped EXE
          • Loads dropped DLL
          PID:3164
        • C:\Windows\SysWOW64\nethtsrv.exe
          "C:\Windows\system32\nethtsrv.exe" -nfdi
          2⤵
          • Executes dropped EXE
          • Loads dropped DLL
          PID:1180
        • C:\Windows\SysWOW64\netupdsrv.exe
          "C:\Windows\system32\netupdsrv.exe" -nfdi
          2⤵
          • Executes dropped EXE
          PID:4552
        • C:\Windows\SysWOW64\net.exe
          net start nethttpservice
          2⤵
          • Suspicious use of WriteProcessMemory
          PID:3704
          • C:\Windows\SysWOW64\net1.exe
            C:\Windows\system32\net1 start nethttpservice
            3⤵
              PID:2920
          • C:\Windows\SysWOW64\net.exe
            net start serviceupdater
            2⤵
            • Suspicious use of WriteProcessMemory
            PID:2848
            • C:\Windows\SysWOW64\net1.exe
              C:\Windows\system32\net1 start serviceupdater
              3⤵
                PID:5100
          • 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:4556
          • C:\Windows\SysWOW64\netupdsrv.exe
            C:\Windows\SysWOW64\netupdsrv.exe
            1⤵
            • Executes dropped EXE
            PID:3100

          Network

          MITRE ATT&CK Enterprise v6

          Replay Monitor

          Loading Replay Monitor...

          Downloads

          • C:\Users\Admin\AppData\Local\Temp\nso2B38.tmp\System.dll

            Filesize

            11KB

            MD5

            c17103ae9072a06da581dec998343fc1

            SHA1

            b72148c6bdfaada8b8c3f950e610ee7cf1da1f8d

            SHA256

            dc58d8ad81cacb0c1ed72e33bff8f23ea40b5252b5bb55d393a0903e6819ae2f

            SHA512

            d32a71aaef18e993f28096d536e41c4d016850721b31171513ce28bbd805a54fd290b7c3e9d935f72e676a1acfb4f0dcc89d95040a0dd29f2b6975855c18986f

          • C:\Users\Admin\AppData\Local\Temp\nso2B38.tmp\nsExec.dll

            Filesize

            6KB

            MD5

            acc2b699edfea5bf5aae45aba3a41e96

            SHA1

            d2accf4d494e43ceb2cff69abe4dd17147d29cc2

            SHA256

            168a974eaa3f588d759db3f47c1a9fdc3494ba1fa1a73a84e5e3b2a4d58abd7e

            SHA512

            e29ea10ada98c71a18273b04f44f385b120d4e8473e441ce5748cfa44a23648814f2656f429b85440157988c88de776c6ac008dc38bf09cbb746c230a46c69fe

          • C:\Users\Admin\AppData\Local\Temp\nso2B38.tmp\nsExec.dll

            Filesize

            6KB

            MD5

            acc2b699edfea5bf5aae45aba3a41e96

            SHA1

            d2accf4d494e43ceb2cff69abe4dd17147d29cc2

            SHA256

            168a974eaa3f588d759db3f47c1a9fdc3494ba1fa1a73a84e5e3b2a4d58abd7e

            SHA512

            e29ea10ada98c71a18273b04f44f385b120d4e8473e441ce5748cfa44a23648814f2656f429b85440157988c88de776c6ac008dc38bf09cbb746c230a46c69fe

          • C:\Users\Admin\AppData\Local\Temp\nso2B38.tmp\nsExec.dll

            Filesize

            6KB

            MD5

            acc2b699edfea5bf5aae45aba3a41e96

            SHA1

            d2accf4d494e43ceb2cff69abe4dd17147d29cc2

            SHA256

            168a974eaa3f588d759db3f47c1a9fdc3494ba1fa1a73a84e5e3b2a4d58abd7e

            SHA512

            e29ea10ada98c71a18273b04f44f385b120d4e8473e441ce5748cfa44a23648814f2656f429b85440157988c88de776c6ac008dc38bf09cbb746c230a46c69fe

          • C:\Users\Admin\AppData\Local\Temp\nso2B38.tmp\nsExec.dll

            Filesize

            6KB

            MD5

            acc2b699edfea5bf5aae45aba3a41e96

            SHA1

            d2accf4d494e43ceb2cff69abe4dd17147d29cc2

            SHA256

            168a974eaa3f588d759db3f47c1a9fdc3494ba1fa1a73a84e5e3b2a4d58abd7e

            SHA512

            e29ea10ada98c71a18273b04f44f385b120d4e8473e441ce5748cfa44a23648814f2656f429b85440157988c88de776c6ac008dc38bf09cbb746c230a46c69fe

          • C:\Users\Admin\AppData\Local\Temp\nso2B38.tmp\nsExec.dll

            Filesize

            6KB

            MD5

            acc2b699edfea5bf5aae45aba3a41e96

            SHA1

            d2accf4d494e43ceb2cff69abe4dd17147d29cc2

            SHA256

            168a974eaa3f588d759db3f47c1a9fdc3494ba1fa1a73a84e5e3b2a4d58abd7e

            SHA512

            e29ea10ada98c71a18273b04f44f385b120d4e8473e441ce5748cfa44a23648814f2656f429b85440157988c88de776c6ac008dc38bf09cbb746c230a46c69fe

          • C:\Users\Admin\AppData\Local\Temp\nso2B38.tmp\nsExec.dll

            Filesize

            6KB

            MD5

            acc2b699edfea5bf5aae45aba3a41e96

            SHA1

            d2accf4d494e43ceb2cff69abe4dd17147d29cc2

            SHA256

            168a974eaa3f588d759db3f47c1a9fdc3494ba1fa1a73a84e5e3b2a4d58abd7e

            SHA512

            e29ea10ada98c71a18273b04f44f385b120d4e8473e441ce5748cfa44a23648814f2656f429b85440157988c88de776c6ac008dc38bf09cbb746c230a46c69fe

          • C:\Users\Admin\AppData\Local\Temp\nso2B38.tmp\nsExec.dll

            Filesize

            6KB

            MD5

            acc2b699edfea5bf5aae45aba3a41e96

            SHA1

            d2accf4d494e43ceb2cff69abe4dd17147d29cc2

            SHA256

            168a974eaa3f588d759db3f47c1a9fdc3494ba1fa1a73a84e5e3b2a4d58abd7e

            SHA512

            e29ea10ada98c71a18273b04f44f385b120d4e8473e441ce5748cfa44a23648814f2656f429b85440157988c88de776c6ac008dc38bf09cbb746c230a46c69fe

          • C:\Users\Admin\AppData\Local\Temp\nso2B38.tmp\nsExec.dll

            Filesize

            6KB

            MD5

            acc2b699edfea5bf5aae45aba3a41e96

            SHA1

            d2accf4d494e43ceb2cff69abe4dd17147d29cc2

            SHA256

            168a974eaa3f588d759db3f47c1a9fdc3494ba1fa1a73a84e5e3b2a4d58abd7e

            SHA512

            e29ea10ada98c71a18273b04f44f385b120d4e8473e441ce5748cfa44a23648814f2656f429b85440157988c88de776c6ac008dc38bf09cbb746c230a46c69fe

          • C:\Windows\SysWOW64\hfnapi.dll

            Filesize

            106KB

            MD5

            fcea3f909b93e0500a2d8667b836904d

            SHA1

            53050b4aea8062aac70f1b4e22d4178c3f327d43

            SHA256

            65c3a3d8a8ae2e538807e84119a16b73ac61a74feda0ab81cc5a44d300cf1095

            SHA512

            af2e6ad87c36a6c2e4de87248c68eeb816dc4a28947a65fe1eb1583b0fdf3a546f790b1120d79efc8a57fc104eec61dbab258b08285fc68b63e17d882c55c6f8

          • C:\Windows\SysWOW64\hfnapi.dll

            Filesize

            106KB

            MD5

            fcea3f909b93e0500a2d8667b836904d

            SHA1

            53050b4aea8062aac70f1b4e22d4178c3f327d43

            SHA256

            65c3a3d8a8ae2e538807e84119a16b73ac61a74feda0ab81cc5a44d300cf1095

            SHA512

            af2e6ad87c36a6c2e4de87248c68eeb816dc4a28947a65fe1eb1583b0fdf3a546f790b1120d79efc8a57fc104eec61dbab258b08285fc68b63e17d882c55c6f8

          • C:\Windows\SysWOW64\hfnapi.dll

            Filesize

            106KB

            MD5

            fcea3f909b93e0500a2d8667b836904d

            SHA1

            53050b4aea8062aac70f1b4e22d4178c3f327d43

            SHA256

            65c3a3d8a8ae2e538807e84119a16b73ac61a74feda0ab81cc5a44d300cf1095

            SHA512

            af2e6ad87c36a6c2e4de87248c68eeb816dc4a28947a65fe1eb1583b0fdf3a546f790b1120d79efc8a57fc104eec61dbab258b08285fc68b63e17d882c55c6f8

          • C:\Windows\SysWOW64\hfnapi.dll

            Filesize

            106KB

            MD5

            fcea3f909b93e0500a2d8667b836904d

            SHA1

            53050b4aea8062aac70f1b4e22d4178c3f327d43

            SHA256

            65c3a3d8a8ae2e538807e84119a16b73ac61a74feda0ab81cc5a44d300cf1095

            SHA512

            af2e6ad87c36a6c2e4de87248c68eeb816dc4a28947a65fe1eb1583b0fdf3a546f790b1120d79efc8a57fc104eec61dbab258b08285fc68b63e17d882c55c6f8

          • C:\Windows\SysWOW64\hfpapi.dll

            Filesize

            244KB

            MD5

            0eb4a26af0149cd369533b47b6a649be

            SHA1

            c1555335e45752a27413739dfe1ddf28dafa22f7

            SHA256

            e0eee057cd257be2a3b57e2e73bf07f0d3fafcc1dd9de97974ba7d76e097a89e

            SHA512

            d18d1f40f7f086ab4f38238b7f94f1b8f488e1128736c39a0e286dd9731602e4c8df2bdf3573a446137fe372affbebfd228afb85e25f6e7e26798268324540ce

          • C:\Windows\SysWOW64\hfpapi.dll

            Filesize

            244KB

            MD5

            0eb4a26af0149cd369533b47b6a649be

            SHA1

            c1555335e45752a27413739dfe1ddf28dafa22f7

            SHA256

            e0eee057cd257be2a3b57e2e73bf07f0d3fafcc1dd9de97974ba7d76e097a89e

            SHA512

            d18d1f40f7f086ab4f38238b7f94f1b8f488e1128736c39a0e286dd9731602e4c8df2bdf3573a446137fe372affbebfd228afb85e25f6e7e26798268324540ce

          • C:\Windows\SysWOW64\hfpapi.dll

            Filesize

            244KB

            MD5

            0eb4a26af0149cd369533b47b6a649be

            SHA1

            c1555335e45752a27413739dfe1ddf28dafa22f7

            SHA256

            e0eee057cd257be2a3b57e2e73bf07f0d3fafcc1dd9de97974ba7d76e097a89e

            SHA512

            d18d1f40f7f086ab4f38238b7f94f1b8f488e1128736c39a0e286dd9731602e4c8df2bdf3573a446137fe372affbebfd228afb85e25f6e7e26798268324540ce

          • C:\Windows\SysWOW64\installd.exe

            Filesize

            108KB

            MD5

            f6ed75a377caaac3ad2734a6bfb43e23

            SHA1

            182f0e1e8f03b250a605400f52a147d821567bb9

            SHA256

            b79a88f4280c900ff9f66363fe02b47dcb2a342ad3f1b48d44d7449dbfede9e4

            SHA512

            af95ba9550a04533e7fef03ed1b8b194f7631ff1e89db1e06f881d016af673ef452b16f4210d9cbe01ea48a28852b3beddf0d59ab50912d81376b15d5fbfbb53

          • C:\Windows\SysWOW64\installd.exe

            Filesize

            108KB

            MD5

            f6ed75a377caaac3ad2734a6bfb43e23

            SHA1

            182f0e1e8f03b250a605400f52a147d821567bb9

            SHA256

            b79a88f4280c900ff9f66363fe02b47dcb2a342ad3f1b48d44d7449dbfede9e4

            SHA512

            af95ba9550a04533e7fef03ed1b8b194f7631ff1e89db1e06f881d016af673ef452b16f4210d9cbe01ea48a28852b3beddf0d59ab50912d81376b15d5fbfbb53

          • C:\Windows\SysWOW64\nethtsrv.exe

            Filesize

            176KB

            MD5

            25052617c1f0b647fa1534e261c981f2

            SHA1

            8fada1f18e328e11b0686c47e93aa39666d58953

            SHA256

            9464ca9089fde1ffc3dee768fb8fbdefad9da80edb7deb377c46f0e819abf916

            SHA512

            3a0ba73b6605060f99497ba9293ab97591ffaaf5edba2883d3f6f6ee6a08cf0791587cf42a41699762753977e7ecd06db6b2cc243dc0b01e1b48d2c335bed5d8

          • C:\Windows\SysWOW64\nethtsrv.exe

            Filesize

            176KB

            MD5

            25052617c1f0b647fa1534e261c981f2

            SHA1

            8fada1f18e328e11b0686c47e93aa39666d58953

            SHA256

            9464ca9089fde1ffc3dee768fb8fbdefad9da80edb7deb377c46f0e819abf916

            SHA512

            3a0ba73b6605060f99497ba9293ab97591ffaaf5edba2883d3f6f6ee6a08cf0791587cf42a41699762753977e7ecd06db6b2cc243dc0b01e1b48d2c335bed5d8

          • C:\Windows\SysWOW64\nethtsrv.exe

            Filesize

            176KB

            MD5

            25052617c1f0b647fa1534e261c981f2

            SHA1

            8fada1f18e328e11b0686c47e93aa39666d58953

            SHA256

            9464ca9089fde1ffc3dee768fb8fbdefad9da80edb7deb377c46f0e819abf916

            SHA512

            3a0ba73b6605060f99497ba9293ab97591ffaaf5edba2883d3f6f6ee6a08cf0791587cf42a41699762753977e7ecd06db6b2cc243dc0b01e1b48d2c335bed5d8

          • C:\Windows\SysWOW64\netupdsrv.exe

            Filesize

            159KB

            MD5

            e7957c8b640d78ede9f1e30f7f547185

            SHA1

            82b2206ccc5c841a7b32744a8d45442b549c9deb

            SHA256

            60bafadb991b30e2133116af87fbcc7ad78e3a02485add0f506beb12dd7a682a

            SHA512

            74b6f6d99d7c6652b4dfe59f9dbee570d3e0389b93cb37560fd934211b7d2a38442243c9fb3f16daf907ec1d30ecfe80c15575aa7ee8731891de8f70b7ee4a79

          • C:\Windows\SysWOW64\netupdsrv.exe

            Filesize

            159KB

            MD5

            e7957c8b640d78ede9f1e30f7f547185

            SHA1

            82b2206ccc5c841a7b32744a8d45442b549c9deb

            SHA256

            60bafadb991b30e2133116af87fbcc7ad78e3a02485add0f506beb12dd7a682a

            SHA512

            74b6f6d99d7c6652b4dfe59f9dbee570d3e0389b93cb37560fd934211b7d2a38442243c9fb3f16daf907ec1d30ecfe80c15575aa7ee8731891de8f70b7ee4a79

          • C:\Windows\SysWOW64\netupdsrv.exe

            Filesize

            159KB

            MD5

            e7957c8b640d78ede9f1e30f7f547185

            SHA1

            82b2206ccc5c841a7b32744a8d45442b549c9deb

            SHA256

            60bafadb991b30e2133116af87fbcc7ad78e3a02485add0f506beb12dd7a682a

            SHA512

            74b6f6d99d7c6652b4dfe59f9dbee570d3e0389b93cb37560fd934211b7d2a38442243c9fb3f16daf907ec1d30ecfe80c15575aa7ee8731891de8f70b7ee4a79

          • memory/1180-147-0x0000000000000000-mapping.dmp

          • memory/1424-136-0x0000000000000000-mapping.dmp

          • memory/2848-165-0x0000000000000000-mapping.dmp

          • memory/2912-135-0x0000000000000000-mapping.dmp

          • memory/2916-140-0x0000000000000000-mapping.dmp

          • memory/2920-159-0x0000000000000000-mapping.dmp

          • memory/3164-142-0x0000000000000000-mapping.dmp

          • memory/3288-141-0x0000000000000000-mapping.dmp

          • memory/3704-158-0x0000000000000000-mapping.dmp

          • memory/3792-137-0x0000000000360000-0x00000000007BE000-memory.dmp

            Filesize

            4.4MB

          • memory/3792-168-0x0000000000360000-0x00000000007BE000-memory.dmp

            Filesize

            4.4MB

          • memory/4552-153-0x0000000000000000-mapping.dmp

          • memory/5100-166-0x0000000000000000-mapping.dmp