Analysis

  • max time kernel
    169s
  • 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 10:59

General

  • Target

    191cb3a79e87499c9954f7ba837e6353c548764afd81f12dd73b1dd753d285c2.exe

  • Size

    445KB

  • MD5

    85a530c1f6fa3e3c3f953a6042c9dbbf

  • SHA1

    73f665f457f277f5ff93710b5491a316cd59e235

  • SHA256

    191cb3a79e87499c9954f7ba837e6353c548764afd81f12dd73b1dd753d285c2

  • SHA512

    0651cc875051ac00f5dc6c116ffb2fa932998b7c674862af5dac8811440260899f17436b20fd8aa555da2da17327def9aee6fdb392830118bdb0bf1f455ecf7e

  • SSDEEP

    12288:FmxLhe0XfrZcJRxz3lWAs3oyBrsC7eMm9nGcFt:FmxdNXfrZcLxRW53oyBrssGP

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\191cb3a79e87499c9954f7ba837e6353c548764afd81f12dd73b1dd753d285c2.exe
    "C:\Users\Admin\AppData\Local\Temp\191cb3a79e87499c9954f7ba837e6353c548764afd81f12dd73b1dd753d285c2.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:2164
    • C:\Windows\SysWOW64\net.exe
      net stop nethttpservice
      2⤵
      • Suspicious use of WriteProcessMemory
      PID:4444
      • C:\Windows\SysWOW64\net1.exe
        C:\Windows\system32\net1 stop nethttpservice
        3⤵
          PID:4924
      • C:\Windows\SysWOW64\net.exe
        net stop serviceupdater
        2⤵
        • Suspicious use of WriteProcessMemory
        PID:2180
        • C:\Windows\SysWOW64\net1.exe
          C:\Windows\system32\net1 stop serviceupdater
          3⤵
            PID:408
        • C:\Windows\SysWOW64\installd.exe
          "C:\Windows\system32\installd.exe" nethfdrv
          2⤵
          • Executes dropped EXE
          • Loads dropped DLL
          PID:2940
        • C:\Windows\SysWOW64\nethtsrv.exe
          "C:\Windows\system32\nethtsrv.exe" -nfdi
          2⤵
          • Executes dropped EXE
          • Loads dropped DLL
          PID:3928
        • C:\Windows\SysWOW64\netupdsrv.exe
          "C:\Windows\system32\netupdsrv.exe" -nfdi
          2⤵
          • Executes dropped EXE
          PID:1180
        • C:\Windows\SysWOW64\net.exe
          net start nethttpservice
          2⤵
          • Suspicious use of WriteProcessMemory
          PID:4824
          • C:\Windows\SysWOW64\net1.exe
            C:\Windows\system32\net1 start nethttpservice
            3⤵
              PID:1468
          • C:\Windows\SysWOW64\net.exe
            net start serviceupdater
            2⤵
            • Suspicious use of WriteProcessMemory
            PID:676
            • C:\Windows\SysWOW64\net1.exe
              C:\Windows\system32\net1 start serviceupdater
              3⤵
                PID:4660
          • 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:360
          • C:\Windows\SysWOW64\netupdsrv.exe
            C:\Windows\SysWOW64\netupdsrv.exe
            1⤵
            • Executes dropped EXE
            PID:1160

          Network

          MITRE ATT&CK Enterprise v6

          Replay Monitor

          Loading Replay Monitor...

          Downloads

          • C:\Users\Admin\AppData\Local\Temp\nswFCE0.tmp\System.dll

            Filesize

            11KB

            MD5

            c17103ae9072a06da581dec998343fc1

            SHA1

            b72148c6bdfaada8b8c3f950e610ee7cf1da1f8d

            SHA256

            dc58d8ad81cacb0c1ed72e33bff8f23ea40b5252b5bb55d393a0903e6819ae2f

            SHA512

            d32a71aaef18e993f28096d536e41c4d016850721b31171513ce28bbd805a54fd290b7c3e9d935f72e676a1acfb4f0dcc89d95040a0dd29f2b6975855c18986f

          • C:\Users\Admin\AppData\Local\Temp\nswFCE0.tmp\nsExec.dll

            Filesize

            6KB

            MD5

            acc2b699edfea5bf5aae45aba3a41e96

            SHA1

            d2accf4d494e43ceb2cff69abe4dd17147d29cc2

            SHA256

            168a974eaa3f588d759db3f47c1a9fdc3494ba1fa1a73a84e5e3b2a4d58abd7e

            SHA512

            e29ea10ada98c71a18273b04f44f385b120d4e8473e441ce5748cfa44a23648814f2656f429b85440157988c88de776c6ac008dc38bf09cbb746c230a46c69fe

          • C:\Users\Admin\AppData\Local\Temp\nswFCE0.tmp\nsExec.dll

            Filesize

            6KB

            MD5

            acc2b699edfea5bf5aae45aba3a41e96

            SHA1

            d2accf4d494e43ceb2cff69abe4dd17147d29cc2

            SHA256

            168a974eaa3f588d759db3f47c1a9fdc3494ba1fa1a73a84e5e3b2a4d58abd7e

            SHA512

            e29ea10ada98c71a18273b04f44f385b120d4e8473e441ce5748cfa44a23648814f2656f429b85440157988c88de776c6ac008dc38bf09cbb746c230a46c69fe

          • C:\Users\Admin\AppData\Local\Temp\nswFCE0.tmp\nsExec.dll

            Filesize

            6KB

            MD5

            acc2b699edfea5bf5aae45aba3a41e96

            SHA1

            d2accf4d494e43ceb2cff69abe4dd17147d29cc2

            SHA256

            168a974eaa3f588d759db3f47c1a9fdc3494ba1fa1a73a84e5e3b2a4d58abd7e

            SHA512

            e29ea10ada98c71a18273b04f44f385b120d4e8473e441ce5748cfa44a23648814f2656f429b85440157988c88de776c6ac008dc38bf09cbb746c230a46c69fe

          • C:\Users\Admin\AppData\Local\Temp\nswFCE0.tmp\nsExec.dll

            Filesize

            6KB

            MD5

            acc2b699edfea5bf5aae45aba3a41e96

            SHA1

            d2accf4d494e43ceb2cff69abe4dd17147d29cc2

            SHA256

            168a974eaa3f588d759db3f47c1a9fdc3494ba1fa1a73a84e5e3b2a4d58abd7e

            SHA512

            e29ea10ada98c71a18273b04f44f385b120d4e8473e441ce5748cfa44a23648814f2656f429b85440157988c88de776c6ac008dc38bf09cbb746c230a46c69fe

          • C:\Users\Admin\AppData\Local\Temp\nswFCE0.tmp\nsExec.dll

            Filesize

            6KB

            MD5

            acc2b699edfea5bf5aae45aba3a41e96

            SHA1

            d2accf4d494e43ceb2cff69abe4dd17147d29cc2

            SHA256

            168a974eaa3f588d759db3f47c1a9fdc3494ba1fa1a73a84e5e3b2a4d58abd7e

            SHA512

            e29ea10ada98c71a18273b04f44f385b120d4e8473e441ce5748cfa44a23648814f2656f429b85440157988c88de776c6ac008dc38bf09cbb746c230a46c69fe

          • C:\Users\Admin\AppData\Local\Temp\nswFCE0.tmp\nsExec.dll

            Filesize

            6KB

            MD5

            acc2b699edfea5bf5aae45aba3a41e96

            SHA1

            d2accf4d494e43ceb2cff69abe4dd17147d29cc2

            SHA256

            168a974eaa3f588d759db3f47c1a9fdc3494ba1fa1a73a84e5e3b2a4d58abd7e

            SHA512

            e29ea10ada98c71a18273b04f44f385b120d4e8473e441ce5748cfa44a23648814f2656f429b85440157988c88de776c6ac008dc38bf09cbb746c230a46c69fe

          • C:\Users\Admin\AppData\Local\Temp\nswFCE0.tmp\nsExec.dll

            Filesize

            6KB

            MD5

            acc2b699edfea5bf5aae45aba3a41e96

            SHA1

            d2accf4d494e43ceb2cff69abe4dd17147d29cc2

            SHA256

            168a974eaa3f588d759db3f47c1a9fdc3494ba1fa1a73a84e5e3b2a4d58abd7e

            SHA512

            e29ea10ada98c71a18273b04f44f385b120d4e8473e441ce5748cfa44a23648814f2656f429b85440157988c88de776c6ac008dc38bf09cbb746c230a46c69fe

          • C:\Users\Admin\AppData\Local\Temp\nswFCE0.tmp\nsExec.dll

            Filesize

            6KB

            MD5

            acc2b699edfea5bf5aae45aba3a41e96

            SHA1

            d2accf4d494e43ceb2cff69abe4dd17147d29cc2

            SHA256

            168a974eaa3f588d759db3f47c1a9fdc3494ba1fa1a73a84e5e3b2a4d58abd7e

            SHA512

            e29ea10ada98c71a18273b04f44f385b120d4e8473e441ce5748cfa44a23648814f2656f429b85440157988c88de776c6ac008dc38bf09cbb746c230a46c69fe

          • C:\Windows\SysWOW64\hfnapi.dll

            Filesize

            106KB

            MD5

            d4a16f319dbc3b63f898907891348fe1

            SHA1

            6622f0fe7359c6d0128107e12031df2e5c541fea

            SHA256

            eda146048a60dcee4fcd800cbed447ea7f2c684fc77bebb91761f4de2a014308

            SHA512

            9b402853217f8dd0730045553b252673110edaa233f244691fa03ed1cde9b8ac221f408424ab91fa23ea0e2912ce0b979d8c1c5be024d2dc3245e261cb04d295

          • C:\Windows\SysWOW64\hfnapi.dll

            Filesize

            106KB

            MD5

            d4a16f319dbc3b63f898907891348fe1

            SHA1

            6622f0fe7359c6d0128107e12031df2e5c541fea

            SHA256

            eda146048a60dcee4fcd800cbed447ea7f2c684fc77bebb91761f4de2a014308

            SHA512

            9b402853217f8dd0730045553b252673110edaa233f244691fa03ed1cde9b8ac221f408424ab91fa23ea0e2912ce0b979d8c1c5be024d2dc3245e261cb04d295

          • C:\Windows\SysWOW64\hfnapi.dll

            Filesize

            106KB

            MD5

            d4a16f319dbc3b63f898907891348fe1

            SHA1

            6622f0fe7359c6d0128107e12031df2e5c541fea

            SHA256

            eda146048a60dcee4fcd800cbed447ea7f2c684fc77bebb91761f4de2a014308

            SHA512

            9b402853217f8dd0730045553b252673110edaa233f244691fa03ed1cde9b8ac221f408424ab91fa23ea0e2912ce0b979d8c1c5be024d2dc3245e261cb04d295

          • C:\Windows\SysWOW64\hfnapi.dll

            Filesize

            106KB

            MD5

            d4a16f319dbc3b63f898907891348fe1

            SHA1

            6622f0fe7359c6d0128107e12031df2e5c541fea

            SHA256

            eda146048a60dcee4fcd800cbed447ea7f2c684fc77bebb91761f4de2a014308

            SHA512

            9b402853217f8dd0730045553b252673110edaa233f244691fa03ed1cde9b8ac221f408424ab91fa23ea0e2912ce0b979d8c1c5be024d2dc3245e261cb04d295

          • C:\Windows\SysWOW64\hfpapi.dll

            Filesize

            241KB

            MD5

            f5998b172e73f60ed8a1b0450b6ee31b

            SHA1

            1ba1f72661dfb28c81dd83de69f63c9f32afd2e8

            SHA256

            69ea19a9b4d793f659a14a9b97042c4092b7cc8b378a7ecb8074bf15636412f4

            SHA512

            fc68e13f7ac8a0cdc41d27b6825d9e79ec453396bae0c76b1ea73faa05eaf42933aedcbe1d1e10fac752c0c12a88632886ab86f74c80092b38afafe7144fd085

          • C:\Windows\SysWOW64\hfpapi.dll

            Filesize

            241KB

            MD5

            f5998b172e73f60ed8a1b0450b6ee31b

            SHA1

            1ba1f72661dfb28c81dd83de69f63c9f32afd2e8

            SHA256

            69ea19a9b4d793f659a14a9b97042c4092b7cc8b378a7ecb8074bf15636412f4

            SHA512

            fc68e13f7ac8a0cdc41d27b6825d9e79ec453396bae0c76b1ea73faa05eaf42933aedcbe1d1e10fac752c0c12a88632886ab86f74c80092b38afafe7144fd085

          • C:\Windows\SysWOW64\hfpapi.dll

            Filesize

            241KB

            MD5

            f5998b172e73f60ed8a1b0450b6ee31b

            SHA1

            1ba1f72661dfb28c81dd83de69f63c9f32afd2e8

            SHA256

            69ea19a9b4d793f659a14a9b97042c4092b7cc8b378a7ecb8074bf15636412f4

            SHA512

            fc68e13f7ac8a0cdc41d27b6825d9e79ec453396bae0c76b1ea73faa05eaf42933aedcbe1d1e10fac752c0c12a88632886ab86f74c80092b38afafe7144fd085

          • C:\Windows\SysWOW64\installd.exe

            Filesize

            108KB

            MD5

            1754a357c813d9aca606f9accbd29486

            SHA1

            0fb22315899503e1724e19ffefb5853f2c7650d9

            SHA256

            1c7fe9112eaf48b321c0dd568d261c950b669b607ae76053964df0d7d1ea5e7a

            SHA512

            0d5b50ef6628de8bee971e28bf1ce56c1360e8402d1545198642c56bae7b0ed4f85761f6b28cdf6f54654ff2fb455fbefb0189c8ed198cc403e8d9c433b3bac0

          • C:\Windows\SysWOW64\installd.exe

            Filesize

            108KB

            MD5

            1754a357c813d9aca606f9accbd29486

            SHA1

            0fb22315899503e1724e19ffefb5853f2c7650d9

            SHA256

            1c7fe9112eaf48b321c0dd568d261c950b669b607ae76053964df0d7d1ea5e7a

            SHA512

            0d5b50ef6628de8bee971e28bf1ce56c1360e8402d1545198642c56bae7b0ed4f85761f6b28cdf6f54654ff2fb455fbefb0189c8ed198cc403e8d9c433b3bac0

          • C:\Windows\SysWOW64\nethtsrv.exe

            Filesize

            176KB

            MD5

            0f4349dbc3cb05b3fc0015696b7eca31

            SHA1

            4a1559f68448bad41dc297bf3ca3cb6d23d334cb

            SHA256

            bd89d4eac0352b4342865ba3db63196d2c68df481b55ae4096432031779c8a7f

            SHA512

            c133663099b0d3d63b7e5237b18f2e8daaffe151f5c44716a9df16acff011d52952db698f6a9b321e867a63f7a4b9af29bc74ab4c1cdd0019d81c83ddce11160

          • C:\Windows\SysWOW64\nethtsrv.exe

            Filesize

            176KB

            MD5

            0f4349dbc3cb05b3fc0015696b7eca31

            SHA1

            4a1559f68448bad41dc297bf3ca3cb6d23d334cb

            SHA256

            bd89d4eac0352b4342865ba3db63196d2c68df481b55ae4096432031779c8a7f

            SHA512

            c133663099b0d3d63b7e5237b18f2e8daaffe151f5c44716a9df16acff011d52952db698f6a9b321e867a63f7a4b9af29bc74ab4c1cdd0019d81c83ddce11160

          • C:\Windows\SysWOW64\nethtsrv.exe

            Filesize

            176KB

            MD5

            0f4349dbc3cb05b3fc0015696b7eca31

            SHA1

            4a1559f68448bad41dc297bf3ca3cb6d23d334cb

            SHA256

            bd89d4eac0352b4342865ba3db63196d2c68df481b55ae4096432031779c8a7f

            SHA512

            c133663099b0d3d63b7e5237b18f2e8daaffe151f5c44716a9df16acff011d52952db698f6a9b321e867a63f7a4b9af29bc74ab4c1cdd0019d81c83ddce11160

          • C:\Windows\SysWOW64\netupdsrv.exe

            Filesize

            158KB

            MD5

            3e5ed75fc2ffd0a1b481c3cc319889fb

            SHA1

            6a22d2a7e3860846397c7ee2e39fe47170029f92

            SHA256

            66f3b0895f5e150cb1883b9f2c9e18010279347818af3c7398d3dd1b9bdb88af

            SHA512

            093d97d8c096959f6574872532a335f8115bc152726f0e51319f170161d438aca87f251bbf5b4f9cbf3c87d9e309bfcab1d0f076d534f188cb093657c38dd614

          • C:\Windows\SysWOW64\netupdsrv.exe

            Filesize

            158KB

            MD5

            3e5ed75fc2ffd0a1b481c3cc319889fb

            SHA1

            6a22d2a7e3860846397c7ee2e39fe47170029f92

            SHA256

            66f3b0895f5e150cb1883b9f2c9e18010279347818af3c7398d3dd1b9bdb88af

            SHA512

            093d97d8c096959f6574872532a335f8115bc152726f0e51319f170161d438aca87f251bbf5b4f9cbf3c87d9e309bfcab1d0f076d534f188cb093657c38dd614

          • C:\Windows\SysWOW64\netupdsrv.exe

            Filesize

            158KB

            MD5

            3e5ed75fc2ffd0a1b481c3cc319889fb

            SHA1

            6a22d2a7e3860846397c7ee2e39fe47170029f92

            SHA256

            66f3b0895f5e150cb1883b9f2c9e18010279347818af3c7398d3dd1b9bdb88af

            SHA512

            093d97d8c096959f6574872532a335f8115bc152726f0e51319f170161d438aca87f251bbf5b4f9cbf3c87d9e309bfcab1d0f076d534f188cb093657c38dd614

          • memory/408-140-0x0000000000000000-mapping.dmp

          • memory/676-164-0x0000000000000000-mapping.dmp

          • memory/1180-152-0x0000000000000000-mapping.dmp

          • memory/1468-158-0x0000000000000000-mapping.dmp

          • memory/2180-139-0x0000000000000000-mapping.dmp

          • memory/2940-141-0x0000000000000000-mapping.dmp

          • memory/3928-146-0x0000000000000000-mapping.dmp

          • memory/4444-135-0x0000000000000000-mapping.dmp

          • memory/4660-165-0x0000000000000000-mapping.dmp

          • memory/4824-157-0x0000000000000000-mapping.dmp

          • memory/4924-136-0x0000000000000000-mapping.dmp