Analysis

  • max time kernel
    38s
  • max time network
    45s
  • platform
    windows7_x64
  • resource
    win7-20220812-en
  • resource tags

    arch:x64arch:x86image:win7-20220812-enlocale:en-usos:windows7-x64system
  • submitted
    23-11-2022 10:23

General

  • Target

    70b7ba74109c90a1575f872e3dd272321b221f78ece77c1b1a7b20829dbe4cae.exe

  • Size

    603KB

  • MD5

    d7d8f16165251d363f27ea7d44f0e46b

  • SHA1

    b19d701bae6d9e2c08b6dae3a33a281c14b08b6e

  • SHA256

    70b7ba74109c90a1575f872e3dd272321b221f78ece77c1b1a7b20829dbe4cae

  • SHA512

    8295a17e41cc8f3d825f7afb9fcec3ba25c5fb44a6ca1c69d5575503a1224cbef49b58ca80b5cbfe5c8b0d54e2eab4e3d4feb9164d70c87aa4e22ee5e2729526

  • SSDEEP

    12288:hIny5DYTQIndBjQjkMNdEb1ETRHv0qn1ioo1EiQucrPpIqqdh:dUTQwrjQjkMNe1ETjn9iQucrPR8h

Score
8/10

Malware Config

Signatures

  • Drops file in Drivers directory 1 IoCs
  • Executes dropped EXE 5 IoCs
  • Loads dropped DLL 13 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.

  • Runs net.exe
  • Suspicious behavior: LoadsDriver 1 IoCs
  • Suspicious use of AdjustPrivilegeToken 1 IoCs
  • Suspicious use of WriteProcessMemory 50 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\70b7ba74109c90a1575f872e3dd272321b221f78ece77c1b1a7b20829dbe4cae.exe
    "C:\Users\Admin\AppData\Local\Temp\70b7ba74109c90a1575f872e3dd272321b221f78ece77c1b1a7b20829dbe4cae.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:1424
    • C:\Windows\SysWOW64\net.exe
      net stop nethttpservice
      2⤵
      • Suspicious use of WriteProcessMemory
      PID:1204
      • C:\Windows\SysWOW64\net1.exe
        C:\Windows\system32\net1 stop nethttpservice
        3⤵
          PID:1528
      • C:\Windows\SysWOW64\net.exe
        net stop serviceupdater
        2⤵
        • Suspicious use of WriteProcessMemory
        PID:1540
        • C:\Windows\SysWOW64\net1.exe
          C:\Windows\system32\net1 stop serviceupdater
          3⤵
            PID:1104
        • C:\Windows\SysWOW64\installd.exe
          "C:\Windows\system32\installd.exe" nethfdrv
          2⤵
          • Executes dropped EXE
          • Loads dropped DLL
          PID:1800
        • C:\Windows\SysWOW64\nethtsrv.exe
          "C:\Windows\system32\nethtsrv.exe" -nfdi
          2⤵
          • Executes dropped EXE
          • Loads dropped DLL
          PID:1644
        • C:\Windows\SysWOW64\netupdsrv.exe
          "C:\Windows\system32\netupdsrv.exe" -nfdi
          2⤵
          • Executes dropped EXE
          PID:824
        • C:\Windows\SysWOW64\net.exe
          net start nethttpservice
          2⤵
          • Suspicious use of WriteProcessMemory
          PID:1488
          • C:\Windows\SysWOW64\net1.exe
            C:\Windows\system32\net1 start nethttpservice
            3⤵
              PID:1380
          • C:\Windows\SysWOW64\net.exe
            net start serviceupdater
            2⤵
            • Suspicious use of WriteProcessMemory
            PID:1516
            • C:\Windows\SysWOW64\net1.exe
              C:\Windows\system32\net1 start serviceupdater
              3⤵
                PID:972
          • C:\Windows\SysWOW64\nethtsrv.exe
            C:\Windows\SysWOW64\nethtsrv.exe
            1⤵
            • Executes dropped EXE
            • Loads dropped DLL
            • Suspicious use of AdjustPrivilegeToken
            PID:840
          • C:\Windows\SysWOW64\netupdsrv.exe
            C:\Windows\SysWOW64\netupdsrv.exe
            1⤵
            • Executes dropped EXE
            PID:1548

          Network

          MITRE ATT&CK Enterprise v6

          Replay Monitor

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          Downloads

          • C:\Windows\SysWOW64\hfnapi.dll

            Filesize

            106KB

            MD5

            97ff5bf674b1c7d6cd2b7a19e0d34eb3

            SHA1

            9e6dfc3d2bacb046e752c013caf94d3d76e2764e

            SHA256

            3a7128b29374eb701c14018dc973125ab65b9b2e49b40b43859e41d4b08d78a4

            SHA512

            e5ed0d54ac9afa1edc678e48ee382ddbdbd53356e986c12c1de0336489e71bbbdfe527989220c7c3f2f55d506567f4a097214b38e56905a21b9241fb891e9c47

          • C:\Windows\SysWOW64\hfpapi.dll

            Filesize

            244KB

            MD5

            485be82fdeccce5438fc536bf700cd1d

            SHA1

            82fc8a438e9d50fbbe48265a4b4d3697ed379c4e

            SHA256

            96d418be2a281efa403d68d9790bd541fabcffb457cc0583eb9c719098483c8b

            SHA512

            3dc4e3070fa65c605330f7cc747a2113b02d041bd8bbd11d4e6ec34b671255ad4d32b309fad25b463e04377efec54f87e3a6a09bc731cb89347a4a08fc8314ff

          • C:\Windows\SysWOW64\installd.exe

            Filesize

            108KB

            MD5

            f0115ff1ede3f37b7b36cbc7e22a7600

            SHA1

            5a9bdf6cc950a60ee56896aca2fb60a62dc5c796

            SHA256

            e6297d7c8251af1ae551396f66077c3e41d1e19c961fc235324e2a9583f55ad6

            SHA512

            ded3967e2a924a7ab86659bd0c10f1af1bb2b7999e91d1ccd43f400ffd9d91c05b231ab634cccae781a55f98d0f452a8bb962111d7832c983c612b1594a9e349

          • C:\Windows\SysWOW64\nethtsrv.exe

            Filesize

            176KB

            MD5

            fc06aa84d4a5042bc80baedd9640c4e6

            SHA1

            88127dc35e0d1c79094eab6c35d14c4829e0847a

            SHA256

            4f29ce723a12df0133279d1938304c7fa732ab8c431d6cee614f0962bf8884e0

            SHA512

            757f16add8b4b3b81e408646235e02dcc4363279eeaa817edad81521527fbb7427a8688d501868fbcc83fc9feb5a27d6486bc4b7db4c67ed8f536dc11df32c64

          • C:\Windows\SysWOW64\nethtsrv.exe

            Filesize

            176KB

            MD5

            fc06aa84d4a5042bc80baedd9640c4e6

            SHA1

            88127dc35e0d1c79094eab6c35d14c4829e0847a

            SHA256

            4f29ce723a12df0133279d1938304c7fa732ab8c431d6cee614f0962bf8884e0

            SHA512

            757f16add8b4b3b81e408646235e02dcc4363279eeaa817edad81521527fbb7427a8688d501868fbcc83fc9feb5a27d6486bc4b7db4c67ed8f536dc11df32c64

          • C:\Windows\SysWOW64\netupdsrv.exe

            Filesize

            158KB

            MD5

            5b704966f578995082fafb825838d17f

            SHA1

            d3644b48d9729515e4c3de0b88b85227988ea313

            SHA256

            3bbf4450e75b3f7fa2af37fc54502de3bae18717fb90ee92debe1d30a0e19ea5

            SHA512

            c67e6ec4f3ba18ab985b36f9dcf8492bc12b25e5c27bad1966bdca290ae26eedce6f476cd8d35a557d508f939e7a6a1b681bda44ed04d943d200a6a4aec09575

          • C:\Windows\SysWOW64\netupdsrv.exe

            Filesize

            158KB

            MD5

            5b704966f578995082fafb825838d17f

            SHA1

            d3644b48d9729515e4c3de0b88b85227988ea313

            SHA256

            3bbf4450e75b3f7fa2af37fc54502de3bae18717fb90ee92debe1d30a0e19ea5

            SHA512

            c67e6ec4f3ba18ab985b36f9dcf8492bc12b25e5c27bad1966bdca290ae26eedce6f476cd8d35a557d508f939e7a6a1b681bda44ed04d943d200a6a4aec09575

          • \Users\Admin\AppData\Local\Temp\nsj67CB.tmp\System.dll

            Filesize

            11KB

            MD5

            c17103ae9072a06da581dec998343fc1

            SHA1

            b72148c6bdfaada8b8c3f950e610ee7cf1da1f8d

            SHA256

            dc58d8ad81cacb0c1ed72e33bff8f23ea40b5252b5bb55d393a0903e6819ae2f

            SHA512

            d32a71aaef18e993f28096d536e41c4d016850721b31171513ce28bbd805a54fd290b7c3e9d935f72e676a1acfb4f0dcc89d95040a0dd29f2b6975855c18986f

          • \Users\Admin\AppData\Local\Temp\nsj67CB.tmp\nsExec.dll

            Filesize

            6KB

            MD5

            acc2b699edfea5bf5aae45aba3a41e96

            SHA1

            d2accf4d494e43ceb2cff69abe4dd17147d29cc2

            SHA256

            168a974eaa3f588d759db3f47c1a9fdc3494ba1fa1a73a84e5e3b2a4d58abd7e

            SHA512

            e29ea10ada98c71a18273b04f44f385b120d4e8473e441ce5748cfa44a23648814f2656f429b85440157988c88de776c6ac008dc38bf09cbb746c230a46c69fe

          • \Users\Admin\AppData\Local\Temp\nsj67CB.tmp\nsExec.dll

            Filesize

            6KB

            MD5

            acc2b699edfea5bf5aae45aba3a41e96

            SHA1

            d2accf4d494e43ceb2cff69abe4dd17147d29cc2

            SHA256

            168a974eaa3f588d759db3f47c1a9fdc3494ba1fa1a73a84e5e3b2a4d58abd7e

            SHA512

            e29ea10ada98c71a18273b04f44f385b120d4e8473e441ce5748cfa44a23648814f2656f429b85440157988c88de776c6ac008dc38bf09cbb746c230a46c69fe

          • \Users\Admin\AppData\Local\Temp\nsj67CB.tmp\nsExec.dll

            Filesize

            6KB

            MD5

            acc2b699edfea5bf5aae45aba3a41e96

            SHA1

            d2accf4d494e43ceb2cff69abe4dd17147d29cc2

            SHA256

            168a974eaa3f588d759db3f47c1a9fdc3494ba1fa1a73a84e5e3b2a4d58abd7e

            SHA512

            e29ea10ada98c71a18273b04f44f385b120d4e8473e441ce5748cfa44a23648814f2656f429b85440157988c88de776c6ac008dc38bf09cbb746c230a46c69fe

          • \Users\Admin\AppData\Local\Temp\nsj67CB.tmp\nsExec.dll

            Filesize

            6KB

            MD5

            acc2b699edfea5bf5aae45aba3a41e96

            SHA1

            d2accf4d494e43ceb2cff69abe4dd17147d29cc2

            SHA256

            168a974eaa3f588d759db3f47c1a9fdc3494ba1fa1a73a84e5e3b2a4d58abd7e

            SHA512

            e29ea10ada98c71a18273b04f44f385b120d4e8473e441ce5748cfa44a23648814f2656f429b85440157988c88de776c6ac008dc38bf09cbb746c230a46c69fe

          • \Windows\SysWOW64\hfnapi.dll

            Filesize

            106KB

            MD5

            97ff5bf674b1c7d6cd2b7a19e0d34eb3

            SHA1

            9e6dfc3d2bacb046e752c013caf94d3d76e2764e

            SHA256

            3a7128b29374eb701c14018dc973125ab65b9b2e49b40b43859e41d4b08d78a4

            SHA512

            e5ed0d54ac9afa1edc678e48ee382ddbdbd53356e986c12c1de0336489e71bbbdfe527989220c7c3f2f55d506567f4a097214b38e56905a21b9241fb891e9c47

          • \Windows\SysWOW64\hfnapi.dll

            Filesize

            106KB

            MD5

            97ff5bf674b1c7d6cd2b7a19e0d34eb3

            SHA1

            9e6dfc3d2bacb046e752c013caf94d3d76e2764e

            SHA256

            3a7128b29374eb701c14018dc973125ab65b9b2e49b40b43859e41d4b08d78a4

            SHA512

            e5ed0d54ac9afa1edc678e48ee382ddbdbd53356e986c12c1de0336489e71bbbdfe527989220c7c3f2f55d506567f4a097214b38e56905a21b9241fb891e9c47

          • \Windows\SysWOW64\hfnapi.dll

            Filesize

            106KB

            MD5

            97ff5bf674b1c7d6cd2b7a19e0d34eb3

            SHA1

            9e6dfc3d2bacb046e752c013caf94d3d76e2764e

            SHA256

            3a7128b29374eb701c14018dc973125ab65b9b2e49b40b43859e41d4b08d78a4

            SHA512

            e5ed0d54ac9afa1edc678e48ee382ddbdbd53356e986c12c1de0336489e71bbbdfe527989220c7c3f2f55d506567f4a097214b38e56905a21b9241fb891e9c47

          • \Windows\SysWOW64\hfpapi.dll

            Filesize

            244KB

            MD5

            485be82fdeccce5438fc536bf700cd1d

            SHA1

            82fc8a438e9d50fbbe48265a4b4d3697ed379c4e

            SHA256

            96d418be2a281efa403d68d9790bd541fabcffb457cc0583eb9c719098483c8b

            SHA512

            3dc4e3070fa65c605330f7cc747a2113b02d041bd8bbd11d4e6ec34b671255ad4d32b309fad25b463e04377efec54f87e3a6a09bc731cb89347a4a08fc8314ff

          • \Windows\SysWOW64\hfpapi.dll

            Filesize

            244KB

            MD5

            485be82fdeccce5438fc536bf700cd1d

            SHA1

            82fc8a438e9d50fbbe48265a4b4d3697ed379c4e

            SHA256

            96d418be2a281efa403d68d9790bd541fabcffb457cc0583eb9c719098483c8b

            SHA512

            3dc4e3070fa65c605330f7cc747a2113b02d041bd8bbd11d4e6ec34b671255ad4d32b309fad25b463e04377efec54f87e3a6a09bc731cb89347a4a08fc8314ff

          • \Windows\SysWOW64\installd.exe

            Filesize

            108KB

            MD5

            f0115ff1ede3f37b7b36cbc7e22a7600

            SHA1

            5a9bdf6cc950a60ee56896aca2fb60a62dc5c796

            SHA256

            e6297d7c8251af1ae551396f66077c3e41d1e19c961fc235324e2a9583f55ad6

            SHA512

            ded3967e2a924a7ab86659bd0c10f1af1bb2b7999e91d1ccd43f400ffd9d91c05b231ab634cccae781a55f98d0f452a8bb962111d7832c983c612b1594a9e349

          • \Windows\SysWOW64\nethtsrv.exe

            Filesize

            176KB

            MD5

            fc06aa84d4a5042bc80baedd9640c4e6

            SHA1

            88127dc35e0d1c79094eab6c35d14c4829e0847a

            SHA256

            4f29ce723a12df0133279d1938304c7fa732ab8c431d6cee614f0962bf8884e0

            SHA512

            757f16add8b4b3b81e408646235e02dcc4363279eeaa817edad81521527fbb7427a8688d501868fbcc83fc9feb5a27d6486bc4b7db4c67ed8f536dc11df32c64

          • \Windows\SysWOW64\netupdsrv.exe

            Filesize

            158KB

            MD5

            5b704966f578995082fafb825838d17f

            SHA1

            d3644b48d9729515e4c3de0b88b85227988ea313

            SHA256

            3bbf4450e75b3f7fa2af37fc54502de3bae18717fb90ee92debe1d30a0e19ea5

            SHA512

            c67e6ec4f3ba18ab985b36f9dcf8492bc12b25e5c27bad1966bdca290ae26eedce6f476cd8d35a557d508f939e7a6a1b681bda44ed04d943d200a6a4aec09575

          • memory/824-76-0x0000000000000000-mapping.dmp

          • memory/972-87-0x0000000000000000-mapping.dmp

          • memory/1104-62-0x0000000000000000-mapping.dmp

          • memory/1204-58-0x0000000000000000-mapping.dmp

          • memory/1380-81-0x0000000000000000-mapping.dmp

          • memory/1424-54-0x0000000076151000-0x0000000076153000-memory.dmp

            Filesize

            8KB

          • memory/1424-55-0x0000000000360000-0x00000000007BE000-memory.dmp

            Filesize

            4.4MB

          • memory/1424-90-0x0000000000360000-0x00000000007BE000-memory.dmp

            Filesize

            4.4MB

          • memory/1488-80-0x0000000000000000-mapping.dmp

          • memory/1516-86-0x0000000000000000-mapping.dmp

          • memory/1528-59-0x0000000000000000-mapping.dmp

          • memory/1540-61-0x0000000000000000-mapping.dmp

          • memory/1644-70-0x0000000000000000-mapping.dmp

          • memory/1800-64-0x0000000000000000-mapping.dmp