Analysis

  • max time kernel
    125s
  • max time network
    140s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20220901-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20220901-enlocale:en-usos:windows10-2004-x64system
  • submitted
    23-11-2022 10:28

General

  • Target

    393a99b230210e34ef01f6634c6aa3dadeb0b78ec84343798d3395b8018e78fe.exe

  • Size

    603KB

  • MD5

    0fa5adfeeaab820419511b7349bb067c

  • SHA1

    2f25c4439b55694ae58a2e86727425b5006faf40

  • SHA256

    393a99b230210e34ef01f6634c6aa3dadeb0b78ec84343798d3395b8018e78fe

  • SHA512

    8cfc75a07c749a5a2b501414e26f32269e5e420fce656b12767faa87d7687bfe3543b12e328c3c77573ca8d466029d89f920e42296f90d0fc23626c090e33762

  • SSDEEP

    12288:8Iny5DYTE3dTEhZ4j4ASHkD2hRC4Hqld1xLaFhqBpRZx:aUTE3ChZ91dGmSd1xOFCZ

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\393a99b230210e34ef01f6634c6aa3dadeb0b78ec84343798d3395b8018e78fe.exe
    "C:\Users\Admin\AppData\Local\Temp\393a99b230210e34ef01f6634c6aa3dadeb0b78ec84343798d3395b8018e78fe.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:2224
    • C:\Windows\SysWOW64\net.exe
      net stop nethttpservice
      2⤵
      • Suspicious use of WriteProcessMemory
      PID:2640
      • C:\Windows\SysWOW64\net1.exe
        C:\Windows\system32\net1 stop nethttpservice
        3⤵
          PID:2012
      • C:\Windows\SysWOW64\net.exe
        net stop serviceupdater
        2⤵
        • Suspicious use of WriteProcessMemory
        PID:3896
        • C:\Windows\SysWOW64\net1.exe
          C:\Windows\system32\net1 stop serviceupdater
          3⤵
            PID:3844
        • C:\Windows\SysWOW64\installd.exe
          "C:\Windows\system32\installd.exe" nethfdrv
          2⤵
          • Executes dropped EXE
          • Loads dropped DLL
          PID:3984
        • C:\Windows\SysWOW64\nethtsrv.exe
          "C:\Windows\system32\nethtsrv.exe" -nfdi
          2⤵
          • Executes dropped EXE
          • Loads dropped DLL
          PID:4172
        • C:\Windows\SysWOW64\netupdsrv.exe
          "C:\Windows\system32\netupdsrv.exe" -nfdi
          2⤵
          • Executes dropped EXE
          PID:936
        • C:\Windows\SysWOW64\net.exe
          net start nethttpservice
          2⤵
          • Suspicious use of WriteProcessMemory
          PID:3856
          • C:\Windows\SysWOW64\net1.exe
            C:\Windows\system32\net1 start nethttpservice
            3⤵
              PID:1112
          • C:\Windows\SysWOW64\net.exe
            net start serviceupdater
            2⤵
            • Suspicious use of WriteProcessMemory
            PID:3480
            • C:\Windows\SysWOW64\net1.exe
              C:\Windows\system32\net1 start serviceupdater
              3⤵
                PID:4320
          • 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:1828
          • C:\Windows\SysWOW64\netupdsrv.exe
            C:\Windows\SysWOW64\netupdsrv.exe
            1⤵
            • Executes dropped EXE
            PID:2780

          Network

          MITRE ATT&CK Enterprise v6

          Replay Monitor

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          Downloads

          • C:\Users\Admin\AppData\Local\Temp\nssCD98.tmp\System.dll

            Filesize

            11KB

            MD5

            c17103ae9072a06da581dec998343fc1

            SHA1

            b72148c6bdfaada8b8c3f950e610ee7cf1da1f8d

            SHA256

            dc58d8ad81cacb0c1ed72e33bff8f23ea40b5252b5bb55d393a0903e6819ae2f

            SHA512

            d32a71aaef18e993f28096d536e41c4d016850721b31171513ce28bbd805a54fd290b7c3e9d935f72e676a1acfb4f0dcc89d95040a0dd29f2b6975855c18986f

          • C:\Users\Admin\AppData\Local\Temp\nssCD98.tmp\nsExec.dll

            Filesize

            6KB

            MD5

            acc2b699edfea5bf5aae45aba3a41e96

            SHA1

            d2accf4d494e43ceb2cff69abe4dd17147d29cc2

            SHA256

            168a974eaa3f588d759db3f47c1a9fdc3494ba1fa1a73a84e5e3b2a4d58abd7e

            SHA512

            e29ea10ada98c71a18273b04f44f385b120d4e8473e441ce5748cfa44a23648814f2656f429b85440157988c88de776c6ac008dc38bf09cbb746c230a46c69fe

          • C:\Users\Admin\AppData\Local\Temp\nssCD98.tmp\nsExec.dll

            Filesize

            6KB

            MD5

            acc2b699edfea5bf5aae45aba3a41e96

            SHA1

            d2accf4d494e43ceb2cff69abe4dd17147d29cc2

            SHA256

            168a974eaa3f588d759db3f47c1a9fdc3494ba1fa1a73a84e5e3b2a4d58abd7e

            SHA512

            e29ea10ada98c71a18273b04f44f385b120d4e8473e441ce5748cfa44a23648814f2656f429b85440157988c88de776c6ac008dc38bf09cbb746c230a46c69fe

          • C:\Users\Admin\AppData\Local\Temp\nssCD98.tmp\nsExec.dll

            Filesize

            6KB

            MD5

            acc2b699edfea5bf5aae45aba3a41e96

            SHA1

            d2accf4d494e43ceb2cff69abe4dd17147d29cc2

            SHA256

            168a974eaa3f588d759db3f47c1a9fdc3494ba1fa1a73a84e5e3b2a4d58abd7e

            SHA512

            e29ea10ada98c71a18273b04f44f385b120d4e8473e441ce5748cfa44a23648814f2656f429b85440157988c88de776c6ac008dc38bf09cbb746c230a46c69fe

          • C:\Users\Admin\AppData\Local\Temp\nssCD98.tmp\nsExec.dll

            Filesize

            6KB

            MD5

            acc2b699edfea5bf5aae45aba3a41e96

            SHA1

            d2accf4d494e43ceb2cff69abe4dd17147d29cc2

            SHA256

            168a974eaa3f588d759db3f47c1a9fdc3494ba1fa1a73a84e5e3b2a4d58abd7e

            SHA512

            e29ea10ada98c71a18273b04f44f385b120d4e8473e441ce5748cfa44a23648814f2656f429b85440157988c88de776c6ac008dc38bf09cbb746c230a46c69fe

          • C:\Users\Admin\AppData\Local\Temp\nssCD98.tmp\nsExec.dll

            Filesize

            6KB

            MD5

            acc2b699edfea5bf5aae45aba3a41e96

            SHA1

            d2accf4d494e43ceb2cff69abe4dd17147d29cc2

            SHA256

            168a974eaa3f588d759db3f47c1a9fdc3494ba1fa1a73a84e5e3b2a4d58abd7e

            SHA512

            e29ea10ada98c71a18273b04f44f385b120d4e8473e441ce5748cfa44a23648814f2656f429b85440157988c88de776c6ac008dc38bf09cbb746c230a46c69fe

          • C:\Users\Admin\AppData\Local\Temp\nssCD98.tmp\nsExec.dll

            Filesize

            6KB

            MD5

            acc2b699edfea5bf5aae45aba3a41e96

            SHA1

            d2accf4d494e43ceb2cff69abe4dd17147d29cc2

            SHA256

            168a974eaa3f588d759db3f47c1a9fdc3494ba1fa1a73a84e5e3b2a4d58abd7e

            SHA512

            e29ea10ada98c71a18273b04f44f385b120d4e8473e441ce5748cfa44a23648814f2656f429b85440157988c88de776c6ac008dc38bf09cbb746c230a46c69fe

          • C:\Users\Admin\AppData\Local\Temp\nssCD98.tmp\nsExec.dll

            Filesize

            6KB

            MD5

            acc2b699edfea5bf5aae45aba3a41e96

            SHA1

            d2accf4d494e43ceb2cff69abe4dd17147d29cc2

            SHA256

            168a974eaa3f588d759db3f47c1a9fdc3494ba1fa1a73a84e5e3b2a4d58abd7e

            SHA512

            e29ea10ada98c71a18273b04f44f385b120d4e8473e441ce5748cfa44a23648814f2656f429b85440157988c88de776c6ac008dc38bf09cbb746c230a46c69fe

          • C:\Users\Admin\AppData\Local\Temp\nssCD98.tmp\nsExec.dll

            Filesize

            6KB

            MD5

            acc2b699edfea5bf5aae45aba3a41e96

            SHA1

            d2accf4d494e43ceb2cff69abe4dd17147d29cc2

            SHA256

            168a974eaa3f588d759db3f47c1a9fdc3494ba1fa1a73a84e5e3b2a4d58abd7e

            SHA512

            e29ea10ada98c71a18273b04f44f385b120d4e8473e441ce5748cfa44a23648814f2656f429b85440157988c88de776c6ac008dc38bf09cbb746c230a46c69fe

          • C:\Windows\SysWOW64\hfnapi.dll

            Filesize

            106KB

            MD5

            4d19b92f670b50554a29a9878f03639c

            SHA1

            263287f84d68bd5cec0b301ed12339bbf1383cc3

            SHA256

            c1767a4a654d6353bcf6440cc043c532486be927f9fbfe3deb786301cb57433d

            SHA512

            496c0428e71e58858fbdb4c77448605af716f48f575c93411765dd8d9c0c5419f1f91c17e56e2c3b404936930028c4607e99b0ca430b04c1e47cc4ada8f49906

          • C:\Windows\SysWOW64\hfnapi.dll

            Filesize

            106KB

            MD5

            4d19b92f670b50554a29a9878f03639c

            SHA1

            263287f84d68bd5cec0b301ed12339bbf1383cc3

            SHA256

            c1767a4a654d6353bcf6440cc043c532486be927f9fbfe3deb786301cb57433d

            SHA512

            496c0428e71e58858fbdb4c77448605af716f48f575c93411765dd8d9c0c5419f1f91c17e56e2c3b404936930028c4607e99b0ca430b04c1e47cc4ada8f49906

          • C:\Windows\SysWOW64\hfnapi.dll

            Filesize

            106KB

            MD5

            4d19b92f670b50554a29a9878f03639c

            SHA1

            263287f84d68bd5cec0b301ed12339bbf1383cc3

            SHA256

            c1767a4a654d6353bcf6440cc043c532486be927f9fbfe3deb786301cb57433d

            SHA512

            496c0428e71e58858fbdb4c77448605af716f48f575c93411765dd8d9c0c5419f1f91c17e56e2c3b404936930028c4607e99b0ca430b04c1e47cc4ada8f49906

          • C:\Windows\SysWOW64\hfnapi.dll

            Filesize

            106KB

            MD5

            4d19b92f670b50554a29a9878f03639c

            SHA1

            263287f84d68bd5cec0b301ed12339bbf1383cc3

            SHA256

            c1767a4a654d6353bcf6440cc043c532486be927f9fbfe3deb786301cb57433d

            SHA512

            496c0428e71e58858fbdb4c77448605af716f48f575c93411765dd8d9c0c5419f1f91c17e56e2c3b404936930028c4607e99b0ca430b04c1e47cc4ada8f49906

          • C:\Windows\SysWOW64\hfpapi.dll

            Filesize

            241KB

            MD5

            8240d2dcaa2c4c7fe6f91b0613abb1de

            SHA1

            0e7fe1d2517dd5a8c5cb3535e9a43b4cd77874e2

            SHA256

            3896724153e58fe338a5f660f3f43f81a2ef5aab887abb976c90e0c69a1dedd7

            SHA512

            baa8788c64221e78a9a3943e607af966cbbd99ad0266cec0910d4264e6fcfbc1f8cd56dd51626b637f5bb3d98f4866ef990040baed24d7e8c7cdd4eaba69468f

          • C:\Windows\SysWOW64\hfpapi.dll

            Filesize

            241KB

            MD5

            8240d2dcaa2c4c7fe6f91b0613abb1de

            SHA1

            0e7fe1d2517dd5a8c5cb3535e9a43b4cd77874e2

            SHA256

            3896724153e58fe338a5f660f3f43f81a2ef5aab887abb976c90e0c69a1dedd7

            SHA512

            baa8788c64221e78a9a3943e607af966cbbd99ad0266cec0910d4264e6fcfbc1f8cd56dd51626b637f5bb3d98f4866ef990040baed24d7e8c7cdd4eaba69468f

          • C:\Windows\SysWOW64\hfpapi.dll

            Filesize

            241KB

            MD5

            8240d2dcaa2c4c7fe6f91b0613abb1de

            SHA1

            0e7fe1d2517dd5a8c5cb3535e9a43b4cd77874e2

            SHA256

            3896724153e58fe338a5f660f3f43f81a2ef5aab887abb976c90e0c69a1dedd7

            SHA512

            baa8788c64221e78a9a3943e607af966cbbd99ad0266cec0910d4264e6fcfbc1f8cd56dd51626b637f5bb3d98f4866ef990040baed24d7e8c7cdd4eaba69468f

          • C:\Windows\SysWOW64\installd.exe

            Filesize

            108KB

            MD5

            378ea96a2625f43a4bc0535912c1004a

            SHA1

            36d7d73aa44423c567d38046dc574eb597892be6

            SHA256

            25405a1b4db7d8882c1d8ff2155d9b1db9987b96f0cbdc3636b37c84a0949b03

            SHA512

            2ac22e3f9adfed481b0b9d483ac49348c40250d7179a696c2ec766e9a2f8e496d7a5247125b363f6ecd131f678f1f849ac9e409bec83082d5cb936507eb0d52d

          • C:\Windows\SysWOW64\installd.exe

            Filesize

            108KB

            MD5

            378ea96a2625f43a4bc0535912c1004a

            SHA1

            36d7d73aa44423c567d38046dc574eb597892be6

            SHA256

            25405a1b4db7d8882c1d8ff2155d9b1db9987b96f0cbdc3636b37c84a0949b03

            SHA512

            2ac22e3f9adfed481b0b9d483ac49348c40250d7179a696c2ec766e9a2f8e496d7a5247125b363f6ecd131f678f1f849ac9e409bec83082d5cb936507eb0d52d

          • C:\Windows\SysWOW64\nethtsrv.exe

            Filesize

            176KB

            MD5

            afe0a536a15a5fc24e2e99890139bbf7

            SHA1

            005751ee59636618d392048f53e996156becafec

            SHA256

            35941e057915838b4a2d6e1ba12d9f61fd379ffa31c5cdfc7a6e28f4f90ef903

            SHA512

            48d48e0f53781a100eedebe62f3d251b20b33523abe185e4e307fc876e18d56beffc922730890be4bd0a6532d52b5a1474af70ef3e697f49063c8aacb67833d0

          • C:\Windows\SysWOW64\nethtsrv.exe

            Filesize

            176KB

            MD5

            afe0a536a15a5fc24e2e99890139bbf7

            SHA1

            005751ee59636618d392048f53e996156becafec

            SHA256

            35941e057915838b4a2d6e1ba12d9f61fd379ffa31c5cdfc7a6e28f4f90ef903

            SHA512

            48d48e0f53781a100eedebe62f3d251b20b33523abe185e4e307fc876e18d56beffc922730890be4bd0a6532d52b5a1474af70ef3e697f49063c8aacb67833d0

          • C:\Windows\SysWOW64\nethtsrv.exe

            Filesize

            176KB

            MD5

            afe0a536a15a5fc24e2e99890139bbf7

            SHA1

            005751ee59636618d392048f53e996156becafec

            SHA256

            35941e057915838b4a2d6e1ba12d9f61fd379ffa31c5cdfc7a6e28f4f90ef903

            SHA512

            48d48e0f53781a100eedebe62f3d251b20b33523abe185e4e307fc876e18d56beffc922730890be4bd0a6532d52b5a1474af70ef3e697f49063c8aacb67833d0

          • C:\Windows\SysWOW64\netupdsrv.exe

            Filesize

            159KB

            MD5

            99568da559a884a89604b7bcfea00996

            SHA1

            1d2b33ecb296e04791127015f7f0394e5b7384e2

            SHA256

            7374faf35d0a53f588b01d1c61304950aa6e1d439ab34ef81dfadbf19f4d100a

            SHA512

            412e6c57a092fa9b44253ed46a74503a2824fe4c02f8fdc80c89da2defb0b7124166187a49418cc885011bc322dc872eed111ae7be2a92620ae1063f34f5eab5

          • C:\Windows\SysWOW64\netupdsrv.exe

            Filesize

            159KB

            MD5

            99568da559a884a89604b7bcfea00996

            SHA1

            1d2b33ecb296e04791127015f7f0394e5b7384e2

            SHA256

            7374faf35d0a53f588b01d1c61304950aa6e1d439ab34ef81dfadbf19f4d100a

            SHA512

            412e6c57a092fa9b44253ed46a74503a2824fe4c02f8fdc80c89da2defb0b7124166187a49418cc885011bc322dc872eed111ae7be2a92620ae1063f34f5eab5

          • C:\Windows\SysWOW64\netupdsrv.exe

            Filesize

            159KB

            MD5

            99568da559a884a89604b7bcfea00996

            SHA1

            1d2b33ecb296e04791127015f7f0394e5b7384e2

            SHA256

            7374faf35d0a53f588b01d1c61304950aa6e1d439ab34ef81dfadbf19f4d100a

            SHA512

            412e6c57a092fa9b44253ed46a74503a2824fe4c02f8fdc80c89da2defb0b7124166187a49418cc885011bc322dc872eed111ae7be2a92620ae1063f34f5eab5

          • memory/936-153-0x0000000000000000-mapping.dmp

          • memory/1112-159-0x0000000000000000-mapping.dmp

          • memory/2012-137-0x0000000000000000-mapping.dmp

          • memory/2224-132-0x0000000000360000-0x00000000007BE000-memory.dmp

            Filesize

            4.4MB

          • memory/2224-168-0x0000000000360000-0x00000000007BE000-memory.dmp

            Filesize

            4.4MB

          • memory/2640-136-0x0000000000000000-mapping.dmp

          • memory/3480-165-0x0000000000000000-mapping.dmp

          • memory/3844-141-0x0000000000000000-mapping.dmp

          • memory/3856-158-0x0000000000000000-mapping.dmp

          • memory/3896-140-0x0000000000000000-mapping.dmp

          • memory/3984-142-0x0000000000000000-mapping.dmp

          • memory/4172-147-0x0000000000000000-mapping.dmp

          • memory/4320-166-0x0000000000000000-mapping.dmp