Analysis

  • max time kernel
    176s
  • max time network
    178s
  • 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 10:52

General

  • Target

    c0b85e3aa32ae7d1cc645de865e77ed8e0f1acec005308d6cfc2fd84f2ca95d5.exe

  • Size

    446KB

  • MD5

    c0b464eac140c1db425c0674ae001e6e

  • SHA1

    83e7a46fd27329604429c35f46286fe08144f7f3

  • SHA256

    c0b85e3aa32ae7d1cc645de865e77ed8e0f1acec005308d6cfc2fd84f2ca95d5

  • SHA512

    b986384311213bceacd9ee00064d1af84b592bf6150c530d6586c804555c25d31110c0dd422b3047da08593683b925a1ac0dd57bb773f9f42a29cf3f1fa8e52c

  • SSDEEP

    12288:V9ljsfqLDdDDENi39W5vm4h5u6E6sKPA3eoQWbI:V9NvDh2i39WFz5u6E6sK43B8

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\c0b85e3aa32ae7d1cc645de865e77ed8e0f1acec005308d6cfc2fd84f2ca95d5.exe
    "C:\Users\Admin\AppData\Local\Temp\c0b85e3aa32ae7d1cc645de865e77ed8e0f1acec005308d6cfc2fd84f2ca95d5.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:2732
    • C:\Windows\SysWOW64\net.exe
      net stop nethttpservice
      2⤵
      • Suspicious use of WriteProcessMemory
      PID:1328
      • C:\Windows\SysWOW64\net1.exe
        C:\Windows\system32\net1 stop nethttpservice
        3⤵
          PID:2628
      • C:\Windows\SysWOW64\net.exe
        net stop serviceupdater
        2⤵
        • Suspicious use of WriteProcessMemory
        PID:1408
        • C:\Windows\SysWOW64\net1.exe
          C:\Windows\system32\net1 stop serviceupdater
          3⤵
            PID:3788
        • C:\Windows\SysWOW64\installd.exe
          "C:\Windows\system32\installd.exe" nethfdrv
          2⤵
          • Executes dropped EXE
          • Loads dropped DLL
          PID:2200
        • C:\Windows\SysWOW64\nethtsrv.exe
          "C:\Windows\system32\nethtsrv.exe" -nfdi
          2⤵
          • Executes dropped EXE
          • Loads dropped DLL
          PID:3524
        • C:\Windows\SysWOW64\netupdsrv.exe
          "C:\Windows\system32\netupdsrv.exe" -nfdi
          2⤵
          • Executes dropped EXE
          PID:868
        • C:\Windows\SysWOW64\net.exe
          net start nethttpservice
          2⤵
          • Suspicious use of WriteProcessMemory
          PID:1884
          • C:\Windows\SysWOW64\net1.exe
            C:\Windows\system32\net1 start nethttpservice
            3⤵
              PID:3740
          • C:\Windows\SysWOW64\net.exe
            net start serviceupdater
            2⤵
            • Suspicious use of WriteProcessMemory
            PID:3944
            • C:\Windows\SysWOW64\net1.exe
              C:\Windows\system32\net1 start serviceupdater
              3⤵
                PID:3636
          • 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:1700
          • C:\Windows\SysWOW64\netupdsrv.exe
            C:\Windows\SysWOW64\netupdsrv.exe
            1⤵
            • Executes dropped EXE
            PID:2832

          Network

          MITRE ATT&CK Enterprise v6

          Replay Monitor

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          Downloads

          • C:\Users\Admin\AppData\Local\Temp\nscE69E.tmp\System.dll

            Filesize

            11KB

            MD5

            c17103ae9072a06da581dec998343fc1

            SHA1

            b72148c6bdfaada8b8c3f950e610ee7cf1da1f8d

            SHA256

            dc58d8ad81cacb0c1ed72e33bff8f23ea40b5252b5bb55d393a0903e6819ae2f

            SHA512

            d32a71aaef18e993f28096d536e41c4d016850721b31171513ce28bbd805a54fd290b7c3e9d935f72e676a1acfb4f0dcc89d95040a0dd29f2b6975855c18986f

          • C:\Users\Admin\AppData\Local\Temp\nscE69E.tmp\nsExec.dll

            Filesize

            6KB

            MD5

            acc2b699edfea5bf5aae45aba3a41e96

            SHA1

            d2accf4d494e43ceb2cff69abe4dd17147d29cc2

            SHA256

            168a974eaa3f588d759db3f47c1a9fdc3494ba1fa1a73a84e5e3b2a4d58abd7e

            SHA512

            e29ea10ada98c71a18273b04f44f385b120d4e8473e441ce5748cfa44a23648814f2656f429b85440157988c88de776c6ac008dc38bf09cbb746c230a46c69fe

          • C:\Users\Admin\AppData\Local\Temp\nscE69E.tmp\nsExec.dll

            Filesize

            6KB

            MD5

            acc2b699edfea5bf5aae45aba3a41e96

            SHA1

            d2accf4d494e43ceb2cff69abe4dd17147d29cc2

            SHA256

            168a974eaa3f588d759db3f47c1a9fdc3494ba1fa1a73a84e5e3b2a4d58abd7e

            SHA512

            e29ea10ada98c71a18273b04f44f385b120d4e8473e441ce5748cfa44a23648814f2656f429b85440157988c88de776c6ac008dc38bf09cbb746c230a46c69fe

          • C:\Users\Admin\AppData\Local\Temp\nscE69E.tmp\nsExec.dll

            Filesize

            6KB

            MD5

            acc2b699edfea5bf5aae45aba3a41e96

            SHA1

            d2accf4d494e43ceb2cff69abe4dd17147d29cc2

            SHA256

            168a974eaa3f588d759db3f47c1a9fdc3494ba1fa1a73a84e5e3b2a4d58abd7e

            SHA512

            e29ea10ada98c71a18273b04f44f385b120d4e8473e441ce5748cfa44a23648814f2656f429b85440157988c88de776c6ac008dc38bf09cbb746c230a46c69fe

          • C:\Users\Admin\AppData\Local\Temp\nscE69E.tmp\nsExec.dll

            Filesize

            6KB

            MD5

            acc2b699edfea5bf5aae45aba3a41e96

            SHA1

            d2accf4d494e43ceb2cff69abe4dd17147d29cc2

            SHA256

            168a974eaa3f588d759db3f47c1a9fdc3494ba1fa1a73a84e5e3b2a4d58abd7e

            SHA512

            e29ea10ada98c71a18273b04f44f385b120d4e8473e441ce5748cfa44a23648814f2656f429b85440157988c88de776c6ac008dc38bf09cbb746c230a46c69fe

          • C:\Users\Admin\AppData\Local\Temp\nscE69E.tmp\nsExec.dll

            Filesize

            6KB

            MD5

            acc2b699edfea5bf5aae45aba3a41e96

            SHA1

            d2accf4d494e43ceb2cff69abe4dd17147d29cc2

            SHA256

            168a974eaa3f588d759db3f47c1a9fdc3494ba1fa1a73a84e5e3b2a4d58abd7e

            SHA512

            e29ea10ada98c71a18273b04f44f385b120d4e8473e441ce5748cfa44a23648814f2656f429b85440157988c88de776c6ac008dc38bf09cbb746c230a46c69fe

          • C:\Users\Admin\AppData\Local\Temp\nscE69E.tmp\nsExec.dll

            Filesize

            6KB

            MD5

            acc2b699edfea5bf5aae45aba3a41e96

            SHA1

            d2accf4d494e43ceb2cff69abe4dd17147d29cc2

            SHA256

            168a974eaa3f588d759db3f47c1a9fdc3494ba1fa1a73a84e5e3b2a4d58abd7e

            SHA512

            e29ea10ada98c71a18273b04f44f385b120d4e8473e441ce5748cfa44a23648814f2656f429b85440157988c88de776c6ac008dc38bf09cbb746c230a46c69fe

          • C:\Users\Admin\AppData\Local\Temp\nscE69E.tmp\nsExec.dll

            Filesize

            6KB

            MD5

            acc2b699edfea5bf5aae45aba3a41e96

            SHA1

            d2accf4d494e43ceb2cff69abe4dd17147d29cc2

            SHA256

            168a974eaa3f588d759db3f47c1a9fdc3494ba1fa1a73a84e5e3b2a4d58abd7e

            SHA512

            e29ea10ada98c71a18273b04f44f385b120d4e8473e441ce5748cfa44a23648814f2656f429b85440157988c88de776c6ac008dc38bf09cbb746c230a46c69fe

          • C:\Users\Admin\AppData\Local\Temp\nscE69E.tmp\nsExec.dll

            Filesize

            6KB

            MD5

            acc2b699edfea5bf5aae45aba3a41e96

            SHA1

            d2accf4d494e43ceb2cff69abe4dd17147d29cc2

            SHA256

            168a974eaa3f588d759db3f47c1a9fdc3494ba1fa1a73a84e5e3b2a4d58abd7e

            SHA512

            e29ea10ada98c71a18273b04f44f385b120d4e8473e441ce5748cfa44a23648814f2656f429b85440157988c88de776c6ac008dc38bf09cbb746c230a46c69fe

          • C:\Windows\SysWOW64\hfnapi.dll

            Filesize

            106KB

            MD5

            7f5f6b8c7870453eeb6f27c963d79531

            SHA1

            46ed6afbe5770d7201d0132f32e025f4366da2d6

            SHA256

            f8315858d68c8bbf20959cb30927df4e9eef922b76fafd411fa6a117c2b4a40e

            SHA512

            d2f19f6005a58f1d88a3a8be190098a93238dedf9d2436375d84f69d9610958e1393e057b9e322847e80919c218d52d661293ff6e2561c099dccc36318dc6b0a

          • C:\Windows\SysWOW64\hfnapi.dll

            Filesize

            106KB

            MD5

            7f5f6b8c7870453eeb6f27c963d79531

            SHA1

            46ed6afbe5770d7201d0132f32e025f4366da2d6

            SHA256

            f8315858d68c8bbf20959cb30927df4e9eef922b76fafd411fa6a117c2b4a40e

            SHA512

            d2f19f6005a58f1d88a3a8be190098a93238dedf9d2436375d84f69d9610958e1393e057b9e322847e80919c218d52d661293ff6e2561c099dccc36318dc6b0a

          • C:\Windows\SysWOW64\hfnapi.dll

            Filesize

            106KB

            MD5

            7f5f6b8c7870453eeb6f27c963d79531

            SHA1

            46ed6afbe5770d7201d0132f32e025f4366da2d6

            SHA256

            f8315858d68c8bbf20959cb30927df4e9eef922b76fafd411fa6a117c2b4a40e

            SHA512

            d2f19f6005a58f1d88a3a8be190098a93238dedf9d2436375d84f69d9610958e1393e057b9e322847e80919c218d52d661293ff6e2561c099dccc36318dc6b0a

          • C:\Windows\SysWOW64\hfnapi.dll

            Filesize

            106KB

            MD5

            7f5f6b8c7870453eeb6f27c963d79531

            SHA1

            46ed6afbe5770d7201d0132f32e025f4366da2d6

            SHA256

            f8315858d68c8bbf20959cb30927df4e9eef922b76fafd411fa6a117c2b4a40e

            SHA512

            d2f19f6005a58f1d88a3a8be190098a93238dedf9d2436375d84f69d9610958e1393e057b9e322847e80919c218d52d661293ff6e2561c099dccc36318dc6b0a

          • C:\Windows\SysWOW64\hfpapi.dll

            Filesize

            244KB

            MD5

            a1112d61799ebc3ebcbd7f58b068b8ad

            SHA1

            d78e97d8758aa078f2120612b7e25bed259fe85e

            SHA256

            80afe8f90630c0e09881e262583a68492009424be706ac2beab89e140a2c01c8

            SHA512

            7a28954cc45d48237de22e0ff66bc11166c554520389125ba4f1b1cf825118b7d66cea161eb1c313c1108a37fc3a0be81515d4f01704a65a2ad315022ef097cd

          • C:\Windows\SysWOW64\hfpapi.dll

            Filesize

            244KB

            MD5

            a1112d61799ebc3ebcbd7f58b068b8ad

            SHA1

            d78e97d8758aa078f2120612b7e25bed259fe85e

            SHA256

            80afe8f90630c0e09881e262583a68492009424be706ac2beab89e140a2c01c8

            SHA512

            7a28954cc45d48237de22e0ff66bc11166c554520389125ba4f1b1cf825118b7d66cea161eb1c313c1108a37fc3a0be81515d4f01704a65a2ad315022ef097cd

          • C:\Windows\SysWOW64\hfpapi.dll

            Filesize

            244KB

            MD5

            a1112d61799ebc3ebcbd7f58b068b8ad

            SHA1

            d78e97d8758aa078f2120612b7e25bed259fe85e

            SHA256

            80afe8f90630c0e09881e262583a68492009424be706ac2beab89e140a2c01c8

            SHA512

            7a28954cc45d48237de22e0ff66bc11166c554520389125ba4f1b1cf825118b7d66cea161eb1c313c1108a37fc3a0be81515d4f01704a65a2ad315022ef097cd

          • C:\Windows\SysWOW64\installd.exe

            Filesize

            108KB

            MD5

            6570931c0879495b2e80994dd6f59ac8

            SHA1

            632b4c9b0268caefd287bc627d4ad174fa23a342

            SHA256

            ece24e7f9e5b2b1a25638f227d46ce4ac05a31c1435f613abe90557c6e14c4da

            SHA512

            6240514bdf5789cfd530c50fcc6edc0968503b6ba495d5edd8c8c98fcc5a4ce59d8ba8b63820bf32e3898a519ce61e6fb2a34320e135175d1b0e14a11cd1848c

          • C:\Windows\SysWOW64\installd.exe

            Filesize

            108KB

            MD5

            6570931c0879495b2e80994dd6f59ac8

            SHA1

            632b4c9b0268caefd287bc627d4ad174fa23a342

            SHA256

            ece24e7f9e5b2b1a25638f227d46ce4ac05a31c1435f613abe90557c6e14c4da

            SHA512

            6240514bdf5789cfd530c50fcc6edc0968503b6ba495d5edd8c8c98fcc5a4ce59d8ba8b63820bf32e3898a519ce61e6fb2a34320e135175d1b0e14a11cd1848c

          • C:\Windows\SysWOW64\nethtsrv.exe

            Filesize

            176KB

            MD5

            74d4bef62d3d35ed92b76586eedf1c48

            SHA1

            ab5819805d135ed2745e1aefff2c8adcf5bc4d7f

            SHA256

            148a9a6308570b3f9b225d7af69864b836feb33d56ab93a4c34f20a240bd52ec

            SHA512

            601fde5e916e59faecb390c9dfb59edaa3aa12b4bf7483c0c64f8df5c6fffe7d356e3a3731617dd529a69a9853ee39d462c4508b7eb4820fb15ef5229844ccb0

          • C:\Windows\SysWOW64\nethtsrv.exe

            Filesize

            176KB

            MD5

            74d4bef62d3d35ed92b76586eedf1c48

            SHA1

            ab5819805d135ed2745e1aefff2c8adcf5bc4d7f

            SHA256

            148a9a6308570b3f9b225d7af69864b836feb33d56ab93a4c34f20a240bd52ec

            SHA512

            601fde5e916e59faecb390c9dfb59edaa3aa12b4bf7483c0c64f8df5c6fffe7d356e3a3731617dd529a69a9853ee39d462c4508b7eb4820fb15ef5229844ccb0

          • C:\Windows\SysWOW64\nethtsrv.exe

            Filesize

            176KB

            MD5

            74d4bef62d3d35ed92b76586eedf1c48

            SHA1

            ab5819805d135ed2745e1aefff2c8adcf5bc4d7f

            SHA256

            148a9a6308570b3f9b225d7af69864b836feb33d56ab93a4c34f20a240bd52ec

            SHA512

            601fde5e916e59faecb390c9dfb59edaa3aa12b4bf7483c0c64f8df5c6fffe7d356e3a3731617dd529a69a9853ee39d462c4508b7eb4820fb15ef5229844ccb0

          • C:\Windows\SysWOW64\netupdsrv.exe

            Filesize

            159KB

            MD5

            b1a6aad0817ea48fa7a8d46761f1e129

            SHA1

            e25982ee745b6e37677b6420cef40f2aa834ceda

            SHA256

            125c290072442560084193e57d1ec465218b9385dd7a686b2932dda8baa027ac

            SHA512

            e7ac84d7415a9fa11b102301091c078f953333b42d649bf593597e43d20ce16732fc1320475785402dae9f3cf24015761e5b44e63493bc185a19d4731880ed94

          • C:\Windows\SysWOW64\netupdsrv.exe

            Filesize

            159KB

            MD5

            b1a6aad0817ea48fa7a8d46761f1e129

            SHA1

            e25982ee745b6e37677b6420cef40f2aa834ceda

            SHA256

            125c290072442560084193e57d1ec465218b9385dd7a686b2932dda8baa027ac

            SHA512

            e7ac84d7415a9fa11b102301091c078f953333b42d649bf593597e43d20ce16732fc1320475785402dae9f3cf24015761e5b44e63493bc185a19d4731880ed94

          • C:\Windows\SysWOW64\netupdsrv.exe

            Filesize

            159KB

            MD5

            b1a6aad0817ea48fa7a8d46761f1e129

            SHA1

            e25982ee745b6e37677b6420cef40f2aa834ceda

            SHA256

            125c290072442560084193e57d1ec465218b9385dd7a686b2932dda8baa027ac

            SHA512

            e7ac84d7415a9fa11b102301091c078f953333b42d649bf593597e43d20ce16732fc1320475785402dae9f3cf24015761e5b44e63493bc185a19d4731880ed94

          • memory/868-152-0x0000000000000000-mapping.dmp

          • memory/1328-135-0x0000000000000000-mapping.dmp

          • memory/1408-139-0x0000000000000000-mapping.dmp

          • memory/1884-157-0x0000000000000000-mapping.dmp

          • memory/2200-141-0x0000000000000000-mapping.dmp

          • memory/2628-136-0x0000000000000000-mapping.dmp

          • memory/3524-146-0x0000000000000000-mapping.dmp

          • memory/3636-165-0x0000000000000000-mapping.dmp

          • memory/3740-158-0x0000000000000000-mapping.dmp

          • memory/3788-140-0x0000000000000000-mapping.dmp

          • memory/3944-164-0x0000000000000000-mapping.dmp