Analysis

  • max time kernel
    188s
  • max time network
    191s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20221111-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20221111-enlocale:en-usos:windows10-2004-x64system
  • submitted
    25-11-2022 13:25

General

  • Target

    f1ff818ae13f53311472bb01cc9ee9396a77a227a50837e100940be66d702341.exe

  • Size

    561KB

  • MD5

    f14bb53eb842a3b0da41266d3babf4c5

  • SHA1

    30ebdf8caaafee62686571652121653912520208

  • SHA256

    f1ff818ae13f53311472bb01cc9ee9396a77a227a50837e100940be66d702341

  • SHA512

    c5b8b4de527db605bedad85dc7a506e3bb45528904502bb4f97514abda71189d6eeeea9047aabab19e5000b2a3320b0eb8861f04ccc8d0557c0c54cf7e044a8b

  • SSDEEP

    12288:RPRYzebfvPj7ZNgfRhnPskE1SIzKfZDlj9W:Qzyfj7ZNgdkkkYp

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\f1ff818ae13f53311472bb01cc9ee9396a77a227a50837e100940be66d702341.exe
    "C:\Users\Admin\AppData\Local\Temp\f1ff818ae13f53311472bb01cc9ee9396a77a227a50837e100940be66d702341.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:4860
    • C:\Windows\SysWOW64\net.exe
      net stop nethttpservice
      2⤵
      • Suspicious use of WriteProcessMemory
      PID:792
      • C:\Windows\SysWOW64\net1.exe
        C:\Windows\system32\net1 stop nethttpservice
        3⤵
          PID:3512
      • C:\Windows\SysWOW64\net.exe
        net stop serviceupdater
        2⤵
        • Suspicious use of WriteProcessMemory
        PID:3576
        • C:\Windows\SysWOW64\net1.exe
          C:\Windows\system32\net1 stop serviceupdater
          3⤵
            PID:4236
        • C:\Windows\SysWOW64\installd.exe
          "C:\Windows\system32\installd.exe" nethfdrv
          2⤵
          • Executes dropped EXE
          • Loads dropped DLL
          PID:1252
        • C:\Windows\SysWOW64\nethtsrv.exe
          "C:\Windows\system32\nethtsrv.exe" -nfdi
          2⤵
          • Executes dropped EXE
          • Loads dropped DLL
          PID:2200
        • C:\Windows\SysWOW64\netupdsrv.exe
          "C:\Windows\system32\netupdsrv.exe" -nfdi
          2⤵
          • Executes dropped EXE
          PID:3636
        • C:\Windows\SysWOW64\net.exe
          net start nethttpservice
          2⤵
          • Suspicious use of WriteProcessMemory
          PID:1980
          • C:\Windows\SysWOW64\net1.exe
            C:\Windows\system32\net1 start nethttpservice
            3⤵
              PID:3028
          • C:\Windows\SysWOW64\net.exe
            net start serviceupdater
            2⤵
            • Suspicious use of WriteProcessMemory
            PID:1392
            • C:\Windows\SysWOW64\net1.exe
              C:\Windows\system32\net1 start serviceupdater
              3⤵
                PID:1920
          • 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:3612
          • C:\Windows\SysWOW64\netupdsrv.exe
            C:\Windows\SysWOW64\netupdsrv.exe
            1⤵
            • Executes dropped EXE
            PID:4284

          Network

          MITRE ATT&CK Enterprise v6

          Replay Monitor

          Loading Replay Monitor...

          Downloads

          • C:\Users\Admin\AppData\Local\Temp\nsbBDB4.tmp\System.dll

            Filesize

            11KB

            MD5

            c17103ae9072a06da581dec998343fc1

            SHA1

            b72148c6bdfaada8b8c3f950e610ee7cf1da1f8d

            SHA256

            dc58d8ad81cacb0c1ed72e33bff8f23ea40b5252b5bb55d393a0903e6819ae2f

            SHA512

            d32a71aaef18e993f28096d536e41c4d016850721b31171513ce28bbd805a54fd290b7c3e9d935f72e676a1acfb4f0dcc89d95040a0dd29f2b6975855c18986f

          • C:\Users\Admin\AppData\Local\Temp\nsbBDB4.tmp\nsExec.dll

            Filesize

            6KB

            MD5

            acc2b699edfea5bf5aae45aba3a41e96

            SHA1

            d2accf4d494e43ceb2cff69abe4dd17147d29cc2

            SHA256

            168a974eaa3f588d759db3f47c1a9fdc3494ba1fa1a73a84e5e3b2a4d58abd7e

            SHA512

            e29ea10ada98c71a18273b04f44f385b120d4e8473e441ce5748cfa44a23648814f2656f429b85440157988c88de776c6ac008dc38bf09cbb746c230a46c69fe

          • C:\Users\Admin\AppData\Local\Temp\nsbBDB4.tmp\nsExec.dll

            Filesize

            6KB

            MD5

            acc2b699edfea5bf5aae45aba3a41e96

            SHA1

            d2accf4d494e43ceb2cff69abe4dd17147d29cc2

            SHA256

            168a974eaa3f588d759db3f47c1a9fdc3494ba1fa1a73a84e5e3b2a4d58abd7e

            SHA512

            e29ea10ada98c71a18273b04f44f385b120d4e8473e441ce5748cfa44a23648814f2656f429b85440157988c88de776c6ac008dc38bf09cbb746c230a46c69fe

          • C:\Users\Admin\AppData\Local\Temp\nsbBDB4.tmp\nsExec.dll

            Filesize

            6KB

            MD5

            acc2b699edfea5bf5aae45aba3a41e96

            SHA1

            d2accf4d494e43ceb2cff69abe4dd17147d29cc2

            SHA256

            168a974eaa3f588d759db3f47c1a9fdc3494ba1fa1a73a84e5e3b2a4d58abd7e

            SHA512

            e29ea10ada98c71a18273b04f44f385b120d4e8473e441ce5748cfa44a23648814f2656f429b85440157988c88de776c6ac008dc38bf09cbb746c230a46c69fe

          • C:\Users\Admin\AppData\Local\Temp\nsbBDB4.tmp\nsExec.dll

            Filesize

            6KB

            MD5

            acc2b699edfea5bf5aae45aba3a41e96

            SHA1

            d2accf4d494e43ceb2cff69abe4dd17147d29cc2

            SHA256

            168a974eaa3f588d759db3f47c1a9fdc3494ba1fa1a73a84e5e3b2a4d58abd7e

            SHA512

            e29ea10ada98c71a18273b04f44f385b120d4e8473e441ce5748cfa44a23648814f2656f429b85440157988c88de776c6ac008dc38bf09cbb746c230a46c69fe

          • C:\Users\Admin\AppData\Local\Temp\nsbBDB4.tmp\nsExec.dll

            Filesize

            6KB

            MD5

            acc2b699edfea5bf5aae45aba3a41e96

            SHA1

            d2accf4d494e43ceb2cff69abe4dd17147d29cc2

            SHA256

            168a974eaa3f588d759db3f47c1a9fdc3494ba1fa1a73a84e5e3b2a4d58abd7e

            SHA512

            e29ea10ada98c71a18273b04f44f385b120d4e8473e441ce5748cfa44a23648814f2656f429b85440157988c88de776c6ac008dc38bf09cbb746c230a46c69fe

          • C:\Users\Admin\AppData\Local\Temp\nsbBDB4.tmp\nsExec.dll

            Filesize

            6KB

            MD5

            acc2b699edfea5bf5aae45aba3a41e96

            SHA1

            d2accf4d494e43ceb2cff69abe4dd17147d29cc2

            SHA256

            168a974eaa3f588d759db3f47c1a9fdc3494ba1fa1a73a84e5e3b2a4d58abd7e

            SHA512

            e29ea10ada98c71a18273b04f44f385b120d4e8473e441ce5748cfa44a23648814f2656f429b85440157988c88de776c6ac008dc38bf09cbb746c230a46c69fe

          • C:\Users\Admin\AppData\Local\Temp\nsbBDB4.tmp\nsExec.dll

            Filesize

            6KB

            MD5

            acc2b699edfea5bf5aae45aba3a41e96

            SHA1

            d2accf4d494e43ceb2cff69abe4dd17147d29cc2

            SHA256

            168a974eaa3f588d759db3f47c1a9fdc3494ba1fa1a73a84e5e3b2a4d58abd7e

            SHA512

            e29ea10ada98c71a18273b04f44f385b120d4e8473e441ce5748cfa44a23648814f2656f429b85440157988c88de776c6ac008dc38bf09cbb746c230a46c69fe

          • C:\Users\Admin\AppData\Local\Temp\nsbBDB4.tmp\nsExec.dll

            Filesize

            6KB

            MD5

            acc2b699edfea5bf5aae45aba3a41e96

            SHA1

            d2accf4d494e43ceb2cff69abe4dd17147d29cc2

            SHA256

            168a974eaa3f588d759db3f47c1a9fdc3494ba1fa1a73a84e5e3b2a4d58abd7e

            SHA512

            e29ea10ada98c71a18273b04f44f385b120d4e8473e441ce5748cfa44a23648814f2656f429b85440157988c88de776c6ac008dc38bf09cbb746c230a46c69fe

          • C:\Windows\SysWOW64\hfnapi.dll

            Filesize

            106KB

            MD5

            12110f2d3f10f992b8c74ac3dd9a3f5b

            SHA1

            f61a4c37a7835e5838a693c6ccf25d8ba4c9a8cc

            SHA256

            f47f36063a896ea4f8598fc0803827f2cb26344eb42b945e22fa09df43d21838

            SHA512

            25a1e3bc05c4315d2d72ca2544853f60208fffac4e3ddfed418bb4fc496e7f56f61c7232eb95c58a5f14aa5d7d1a7ef888298b3942afc15927c43a113bb1b38c

          • C:\Windows\SysWOW64\hfnapi.dll

            Filesize

            106KB

            MD5

            12110f2d3f10f992b8c74ac3dd9a3f5b

            SHA1

            f61a4c37a7835e5838a693c6ccf25d8ba4c9a8cc

            SHA256

            f47f36063a896ea4f8598fc0803827f2cb26344eb42b945e22fa09df43d21838

            SHA512

            25a1e3bc05c4315d2d72ca2544853f60208fffac4e3ddfed418bb4fc496e7f56f61c7232eb95c58a5f14aa5d7d1a7ef888298b3942afc15927c43a113bb1b38c

          • C:\Windows\SysWOW64\hfnapi.dll

            Filesize

            106KB

            MD5

            12110f2d3f10f992b8c74ac3dd9a3f5b

            SHA1

            f61a4c37a7835e5838a693c6ccf25d8ba4c9a8cc

            SHA256

            f47f36063a896ea4f8598fc0803827f2cb26344eb42b945e22fa09df43d21838

            SHA512

            25a1e3bc05c4315d2d72ca2544853f60208fffac4e3ddfed418bb4fc496e7f56f61c7232eb95c58a5f14aa5d7d1a7ef888298b3942afc15927c43a113bb1b38c

          • C:\Windows\SysWOW64\hfnapi.dll

            Filesize

            106KB

            MD5

            12110f2d3f10f992b8c74ac3dd9a3f5b

            SHA1

            f61a4c37a7835e5838a693c6ccf25d8ba4c9a8cc

            SHA256

            f47f36063a896ea4f8598fc0803827f2cb26344eb42b945e22fa09df43d21838

            SHA512

            25a1e3bc05c4315d2d72ca2544853f60208fffac4e3ddfed418bb4fc496e7f56f61c7232eb95c58a5f14aa5d7d1a7ef888298b3942afc15927c43a113bb1b38c

          • C:\Windows\SysWOW64\hfpapi.dll

            Filesize

            241KB

            MD5

            7a6213e8ab10eaf5f2c405fe22d17323

            SHA1

            56367a09efa9b37fef786381eef516f7cd5ef873

            SHA256

            00d052ba1a29eab0035423f8739d53d9c0be70f2755cea960904364d3eee6993

            SHA512

            c5c26a8a12240a644ba2c4179c91fa9b7dd9b7cf2595f2df2862e23966a3cbf1e8444a52e61ba8497c048b63646b925b1e892a13f0d44aaec025139446cea64f

          • C:\Windows\SysWOW64\hfpapi.dll

            Filesize

            241KB

            MD5

            7a6213e8ab10eaf5f2c405fe22d17323

            SHA1

            56367a09efa9b37fef786381eef516f7cd5ef873

            SHA256

            00d052ba1a29eab0035423f8739d53d9c0be70f2755cea960904364d3eee6993

            SHA512

            c5c26a8a12240a644ba2c4179c91fa9b7dd9b7cf2595f2df2862e23966a3cbf1e8444a52e61ba8497c048b63646b925b1e892a13f0d44aaec025139446cea64f

          • C:\Windows\SysWOW64\hfpapi.dll

            Filesize

            241KB

            MD5

            7a6213e8ab10eaf5f2c405fe22d17323

            SHA1

            56367a09efa9b37fef786381eef516f7cd5ef873

            SHA256

            00d052ba1a29eab0035423f8739d53d9c0be70f2755cea960904364d3eee6993

            SHA512

            c5c26a8a12240a644ba2c4179c91fa9b7dd9b7cf2595f2df2862e23966a3cbf1e8444a52e61ba8497c048b63646b925b1e892a13f0d44aaec025139446cea64f

          • C:\Windows\SysWOW64\installd.exe

            Filesize

            108KB

            MD5

            8a2fbd568ba9c9ad5a71d8aeea7783c4

            SHA1

            7bad7765504217e73005dd9cbd97017a572aca13

            SHA256

            2a0939feaad1d2bcd68383c4b8684d4733e73d34102f5db80fa4266ae66b43f4

            SHA512

            0a1d5b5d7e6167f56d43cdfb0cf62282f04284102e378d511ac0a41452d13bfdf05357d026869e2b21282e639bbaf1f5ce745caf294f7ad01668b4bed0ac245e

          • C:\Windows\SysWOW64\installd.exe

            Filesize

            108KB

            MD5

            8a2fbd568ba9c9ad5a71d8aeea7783c4

            SHA1

            7bad7765504217e73005dd9cbd97017a572aca13

            SHA256

            2a0939feaad1d2bcd68383c4b8684d4733e73d34102f5db80fa4266ae66b43f4

            SHA512

            0a1d5b5d7e6167f56d43cdfb0cf62282f04284102e378d511ac0a41452d13bfdf05357d026869e2b21282e639bbaf1f5ce745caf294f7ad01668b4bed0ac245e

          • C:\Windows\SysWOW64\nethtsrv.exe

            Filesize

            176KB

            MD5

            f5169847e810b92b8082161316eee033

            SHA1

            78e86ec36c6515d144f7c5523c13d5366e9bea06

            SHA256

            8eb4412f65669fdb7344509d077f8dcf34d8a3ea15faca319c320dd9cb2b5574

            SHA512

            b78d39c789e7f6f1186e02c20fae4b146652ac008940d31905d0695331a26f3b92e838ee4d0ab6185c99311cd21169b40668977f462dd2d4dbbde0ce357b46bd

          • C:\Windows\SysWOW64\nethtsrv.exe

            Filesize

            176KB

            MD5

            f5169847e810b92b8082161316eee033

            SHA1

            78e86ec36c6515d144f7c5523c13d5366e9bea06

            SHA256

            8eb4412f65669fdb7344509d077f8dcf34d8a3ea15faca319c320dd9cb2b5574

            SHA512

            b78d39c789e7f6f1186e02c20fae4b146652ac008940d31905d0695331a26f3b92e838ee4d0ab6185c99311cd21169b40668977f462dd2d4dbbde0ce357b46bd

          • C:\Windows\SysWOW64\nethtsrv.exe

            Filesize

            176KB

            MD5

            f5169847e810b92b8082161316eee033

            SHA1

            78e86ec36c6515d144f7c5523c13d5366e9bea06

            SHA256

            8eb4412f65669fdb7344509d077f8dcf34d8a3ea15faca319c320dd9cb2b5574

            SHA512

            b78d39c789e7f6f1186e02c20fae4b146652ac008940d31905d0695331a26f3b92e838ee4d0ab6185c99311cd21169b40668977f462dd2d4dbbde0ce357b46bd

          • C:\Windows\SysWOW64\netupdsrv.exe

            Filesize

            158KB

            MD5

            c484d3c5fd45d1d30e2ea087f92427d9

            SHA1

            74fa7ec21cb40d92a1951212c8beb461e06cad4a

            SHA256

            101689b07542f711353c5091f3d1843286247b6367325461ee3116f7772dd65a

            SHA512

            ab18ab6ccc5c53881f40337c78652c09ab37c1abd1fe0d89e322b10d7128c545d0b137cc4333d8a2dae1ff305f4bf5b471a918fb4c8e26a7e69baf2bab54e841

          • C:\Windows\SysWOW64\netupdsrv.exe

            Filesize

            158KB

            MD5

            c484d3c5fd45d1d30e2ea087f92427d9

            SHA1

            74fa7ec21cb40d92a1951212c8beb461e06cad4a

            SHA256

            101689b07542f711353c5091f3d1843286247b6367325461ee3116f7772dd65a

            SHA512

            ab18ab6ccc5c53881f40337c78652c09ab37c1abd1fe0d89e322b10d7128c545d0b137cc4333d8a2dae1ff305f4bf5b471a918fb4c8e26a7e69baf2bab54e841

          • C:\Windows\SysWOW64\netupdsrv.exe

            Filesize

            158KB

            MD5

            c484d3c5fd45d1d30e2ea087f92427d9

            SHA1

            74fa7ec21cb40d92a1951212c8beb461e06cad4a

            SHA256

            101689b07542f711353c5091f3d1843286247b6367325461ee3116f7772dd65a

            SHA512

            ab18ab6ccc5c53881f40337c78652c09ab37c1abd1fe0d89e322b10d7128c545d0b137cc4333d8a2dae1ff305f4bf5b471a918fb4c8e26a7e69baf2bab54e841

          • memory/4860-132-0x0000000000360000-0x00000000007BE000-memory.dmp

            Filesize

            4.4MB

          • memory/4860-142-0x0000000000360000-0x00000000007BE000-memory.dmp

            Filesize

            4.4MB

          • memory/4860-169-0x0000000000360000-0x00000000007BE000-memory.dmp

            Filesize

            4.4MB