Analysis

  • max time kernel
    69s
  • max time network
    33s
  • platform
    windows7_x64
  • resource
    win7-20221111-en
  • resource tags

    arch:x64arch:x86image:win7-20221111-enlocale:en-usos:windows7-x64system
  • submitted
    23-11-2022 10:17

General

  • Target

    9e4b13c49373e1f13078577cc7a0ccef404bf98e43238ac26fa9c49140ba1742.exe

  • Size

    602KB

  • MD5

    63198b11ee61687432f8b8ab30266888

  • SHA1

    c2acb4d6c917056836258bd280f986a8728a3c72

  • SHA256

    9e4b13c49373e1f13078577cc7a0ccef404bf98e43238ac26fa9c49140ba1742

  • SHA512

    f1b4e1f696679ef2010e22cbe9a81c0901e9ca4252a6ce9bae2723f880c7e32dbd79cd622bb5421e9493a2b5845bf07e5b8a0a6b328c7debb0d231088becd508

  • SSDEEP

    12288:UIny5DYTr/akRE0O8x+V5nXNcuaxgKsRGKv+E5rEI:SUTmyJO8MLRHbv+krEI

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\9e4b13c49373e1f13078577cc7a0ccef404bf98e43238ac26fa9c49140ba1742.exe
    "C:\Users\Admin\AppData\Local\Temp\9e4b13c49373e1f13078577cc7a0ccef404bf98e43238ac26fa9c49140ba1742.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:1632
    • C:\Windows\SysWOW64\net.exe
      net stop nethttpservice
      2⤵
      • Suspicious use of WriteProcessMemory
      PID:1428
      • C:\Windows\SysWOW64\net1.exe
        C:\Windows\system32\net1 stop nethttpservice
        3⤵
          PID:1752
      • C:\Windows\SysWOW64\net.exe
        net stop serviceupdater
        2⤵
        • Suspicious use of WriteProcessMemory
        PID:1768
        • C:\Windows\SysWOW64\net1.exe
          C:\Windows\system32\net1 stop serviceupdater
          3⤵
            PID:468
        • C:\Windows\SysWOW64\installd.exe
          "C:\Windows\system32\installd.exe" nethfdrv
          2⤵
          • Executes dropped EXE
          • Loads dropped DLL
          PID:544
        • C:\Windows\SysWOW64\nethtsrv.exe
          "C:\Windows\system32\nethtsrv.exe" -nfdi
          2⤵
          • Executes dropped EXE
          • Loads dropped DLL
          PID:1656
        • C:\Windows\SysWOW64\netupdsrv.exe
          "C:\Windows\system32\netupdsrv.exe" -nfdi
          2⤵
          • Executes dropped EXE
          PID:1496
        • C:\Windows\SysWOW64\net.exe
          net start nethttpservice
          2⤵
          • Suspicious use of WriteProcessMemory
          PID:2028
          • C:\Windows\SysWOW64\net1.exe
            C:\Windows\system32\net1 start nethttpservice
            3⤵
              PID:1508
          • C:\Windows\SysWOW64\net.exe
            net start serviceupdater
            2⤵
            • Suspicious use of WriteProcessMemory
            PID:1844
            • C:\Windows\SysWOW64\net1.exe
              C:\Windows\system32\net1 start serviceupdater
              3⤵
                PID:940
          • C:\Windows\SysWOW64\nethtsrv.exe
            C:\Windows\SysWOW64\nethtsrv.exe
            1⤵
            • Executes dropped EXE
            • Loads dropped DLL
            • Suspicious use of AdjustPrivilegeToken
            PID:1200
          • C:\Windows\SysWOW64\netupdsrv.exe
            C:\Windows\SysWOW64\netupdsrv.exe
            1⤵
            • Executes dropped EXE
            PID:1816

          Network

          MITRE ATT&CK Enterprise v6

          Replay Monitor

          Loading Replay Monitor...

          Downloads

          • C:\Windows\SysWOW64\hfnapi.dll

            Filesize

            106KB

            MD5

            2eb90cb04f02502f9666edf967e90aa2

            SHA1

            45020fa4de6ab72cea8b79a0045175e0054eb972

            SHA256

            4d70f067ba84fa38589933ea826514052dff564e71bb382334a1c92edefb57fe

            SHA512

            5b1ab9824d081a34d95028794e94835237a2660174fe0eb0ae5bca5f8fd793d3c504763cd5e3ff00a8c3fa034993f1eddfe98e1ebce4c789b4ff1a21c2d9abee

          • C:\Windows\SysWOW64\hfpapi.dll

            Filesize

            241KB

            MD5

            e8bae790deeff7c3016d89417243b406

            SHA1

            bd8b53d16a8bb3a7225bc8e3540364ef0de306e0

            SHA256

            67c227e5b100ac7ba50dd32f9983f0b8dc1c1a078e36f381a76b60c6a68d36e7

            SHA512

            b0ec2d8c5a8911594e291c7cdd412d96db6a4f739fef23c79552c10f7fec647c0fa80d25eb099cf08d0fb372ea228bc78cf085ce6519dec3e5d4bdb2342d2b1c

          • C:\Windows\SysWOW64\installd.exe

            Filesize

            108KB

            MD5

            3d8bb5f1c71a6f5b47d89f5e59183d32

            SHA1

            60b271eb43f925896037cfab35bc64ae83519874

            SHA256

            99d5487d656061fe014b4a907e7c21f1ce1910abf7b4de4139d763fb3a531203

            SHA512

            6092a5264d8644b3cbd682f367ec033f04b6a9437b2a880a726a102ca2181541cd87b3d2da448c4427f7a86be2474595655d5eb4b6ec3732fc37e2871dd4bdb0

          • C:\Windows\SysWOW64\nethtsrv.exe

            Filesize

            176KB

            MD5

            c86c4229fd59141fbb5337d95c779b98

            SHA1

            0d4a6c68f48d36ebf0fd57b9519ced63b75175f7

            SHA256

            066f07e6cc48e1e1950d761860f934a1e306a234165ba108efd7d5bfebb45d6c

            SHA512

            4c315132f14da4afec6ea5c05ea29e1209ce936ee629d6a1695aec8139aebe3c3096714543c4fb812fd4fcff0793abd36a2f35b0b448ace351be64108a85d537

          • C:\Windows\SysWOW64\nethtsrv.exe

            Filesize

            176KB

            MD5

            c86c4229fd59141fbb5337d95c779b98

            SHA1

            0d4a6c68f48d36ebf0fd57b9519ced63b75175f7

            SHA256

            066f07e6cc48e1e1950d761860f934a1e306a234165ba108efd7d5bfebb45d6c

            SHA512

            4c315132f14da4afec6ea5c05ea29e1209ce936ee629d6a1695aec8139aebe3c3096714543c4fb812fd4fcff0793abd36a2f35b0b448ace351be64108a85d537

          • C:\Windows\SysWOW64\netupdsrv.exe

            Filesize

            158KB

            MD5

            0cd0b8b60f5d8e7a1e82f14bd614df02

            SHA1

            27e597bb7fd50d5505dad82c7245c837a1049a1e

            SHA256

            c01978c49517075443b8d04d06273f20953546119f1be013cc1d7ff9704f14e6

            SHA512

            aa0bc00d003616a6280da71d59f30eef2e8aff626286c995edbb3de3add97b2b7a8365726588b56c5bb669ee8518d06e2a4cdb5a0e57a79cce32a2acb03c7f26

          • C:\Windows\SysWOW64\netupdsrv.exe

            Filesize

            158KB

            MD5

            0cd0b8b60f5d8e7a1e82f14bd614df02

            SHA1

            27e597bb7fd50d5505dad82c7245c837a1049a1e

            SHA256

            c01978c49517075443b8d04d06273f20953546119f1be013cc1d7ff9704f14e6

            SHA512

            aa0bc00d003616a6280da71d59f30eef2e8aff626286c995edbb3de3add97b2b7a8365726588b56c5bb669ee8518d06e2a4cdb5a0e57a79cce32a2acb03c7f26

          • \Users\Admin\AppData\Local\Temp\nsd67AB.tmp\System.dll

            Filesize

            11KB

            MD5

            c17103ae9072a06da581dec998343fc1

            SHA1

            b72148c6bdfaada8b8c3f950e610ee7cf1da1f8d

            SHA256

            dc58d8ad81cacb0c1ed72e33bff8f23ea40b5252b5bb55d393a0903e6819ae2f

            SHA512

            d32a71aaef18e993f28096d536e41c4d016850721b31171513ce28bbd805a54fd290b7c3e9d935f72e676a1acfb4f0dcc89d95040a0dd29f2b6975855c18986f

          • \Users\Admin\AppData\Local\Temp\nsd67AB.tmp\nsExec.dll

            Filesize

            6KB

            MD5

            acc2b699edfea5bf5aae45aba3a41e96

            SHA1

            d2accf4d494e43ceb2cff69abe4dd17147d29cc2

            SHA256

            168a974eaa3f588d759db3f47c1a9fdc3494ba1fa1a73a84e5e3b2a4d58abd7e

            SHA512

            e29ea10ada98c71a18273b04f44f385b120d4e8473e441ce5748cfa44a23648814f2656f429b85440157988c88de776c6ac008dc38bf09cbb746c230a46c69fe

          • \Users\Admin\AppData\Local\Temp\nsd67AB.tmp\nsExec.dll

            Filesize

            6KB

            MD5

            acc2b699edfea5bf5aae45aba3a41e96

            SHA1

            d2accf4d494e43ceb2cff69abe4dd17147d29cc2

            SHA256

            168a974eaa3f588d759db3f47c1a9fdc3494ba1fa1a73a84e5e3b2a4d58abd7e

            SHA512

            e29ea10ada98c71a18273b04f44f385b120d4e8473e441ce5748cfa44a23648814f2656f429b85440157988c88de776c6ac008dc38bf09cbb746c230a46c69fe

          • \Users\Admin\AppData\Local\Temp\nsd67AB.tmp\nsExec.dll

            Filesize

            6KB

            MD5

            acc2b699edfea5bf5aae45aba3a41e96

            SHA1

            d2accf4d494e43ceb2cff69abe4dd17147d29cc2

            SHA256

            168a974eaa3f588d759db3f47c1a9fdc3494ba1fa1a73a84e5e3b2a4d58abd7e

            SHA512

            e29ea10ada98c71a18273b04f44f385b120d4e8473e441ce5748cfa44a23648814f2656f429b85440157988c88de776c6ac008dc38bf09cbb746c230a46c69fe

          • \Users\Admin\AppData\Local\Temp\nsd67AB.tmp\nsExec.dll

            Filesize

            6KB

            MD5

            acc2b699edfea5bf5aae45aba3a41e96

            SHA1

            d2accf4d494e43ceb2cff69abe4dd17147d29cc2

            SHA256

            168a974eaa3f588d759db3f47c1a9fdc3494ba1fa1a73a84e5e3b2a4d58abd7e

            SHA512

            e29ea10ada98c71a18273b04f44f385b120d4e8473e441ce5748cfa44a23648814f2656f429b85440157988c88de776c6ac008dc38bf09cbb746c230a46c69fe

          • \Windows\SysWOW64\hfnapi.dll

            Filesize

            106KB

            MD5

            2eb90cb04f02502f9666edf967e90aa2

            SHA1

            45020fa4de6ab72cea8b79a0045175e0054eb972

            SHA256

            4d70f067ba84fa38589933ea826514052dff564e71bb382334a1c92edefb57fe

            SHA512

            5b1ab9824d081a34d95028794e94835237a2660174fe0eb0ae5bca5f8fd793d3c504763cd5e3ff00a8c3fa034993f1eddfe98e1ebce4c789b4ff1a21c2d9abee

          • \Windows\SysWOW64\hfnapi.dll

            Filesize

            106KB

            MD5

            2eb90cb04f02502f9666edf967e90aa2

            SHA1

            45020fa4de6ab72cea8b79a0045175e0054eb972

            SHA256

            4d70f067ba84fa38589933ea826514052dff564e71bb382334a1c92edefb57fe

            SHA512

            5b1ab9824d081a34d95028794e94835237a2660174fe0eb0ae5bca5f8fd793d3c504763cd5e3ff00a8c3fa034993f1eddfe98e1ebce4c789b4ff1a21c2d9abee

          • \Windows\SysWOW64\hfnapi.dll

            Filesize

            106KB

            MD5

            2eb90cb04f02502f9666edf967e90aa2

            SHA1

            45020fa4de6ab72cea8b79a0045175e0054eb972

            SHA256

            4d70f067ba84fa38589933ea826514052dff564e71bb382334a1c92edefb57fe

            SHA512

            5b1ab9824d081a34d95028794e94835237a2660174fe0eb0ae5bca5f8fd793d3c504763cd5e3ff00a8c3fa034993f1eddfe98e1ebce4c789b4ff1a21c2d9abee

          • \Windows\SysWOW64\hfpapi.dll

            Filesize

            241KB

            MD5

            e8bae790deeff7c3016d89417243b406

            SHA1

            bd8b53d16a8bb3a7225bc8e3540364ef0de306e0

            SHA256

            67c227e5b100ac7ba50dd32f9983f0b8dc1c1a078e36f381a76b60c6a68d36e7

            SHA512

            b0ec2d8c5a8911594e291c7cdd412d96db6a4f739fef23c79552c10f7fec647c0fa80d25eb099cf08d0fb372ea228bc78cf085ce6519dec3e5d4bdb2342d2b1c

          • \Windows\SysWOW64\hfpapi.dll

            Filesize

            241KB

            MD5

            e8bae790deeff7c3016d89417243b406

            SHA1

            bd8b53d16a8bb3a7225bc8e3540364ef0de306e0

            SHA256

            67c227e5b100ac7ba50dd32f9983f0b8dc1c1a078e36f381a76b60c6a68d36e7

            SHA512

            b0ec2d8c5a8911594e291c7cdd412d96db6a4f739fef23c79552c10f7fec647c0fa80d25eb099cf08d0fb372ea228bc78cf085ce6519dec3e5d4bdb2342d2b1c

          • \Windows\SysWOW64\installd.exe

            Filesize

            108KB

            MD5

            3d8bb5f1c71a6f5b47d89f5e59183d32

            SHA1

            60b271eb43f925896037cfab35bc64ae83519874

            SHA256

            99d5487d656061fe014b4a907e7c21f1ce1910abf7b4de4139d763fb3a531203

            SHA512

            6092a5264d8644b3cbd682f367ec033f04b6a9437b2a880a726a102ca2181541cd87b3d2da448c4427f7a86be2474595655d5eb4b6ec3732fc37e2871dd4bdb0

          • \Windows\SysWOW64\nethtsrv.exe

            Filesize

            176KB

            MD5

            c86c4229fd59141fbb5337d95c779b98

            SHA1

            0d4a6c68f48d36ebf0fd57b9519ced63b75175f7

            SHA256

            066f07e6cc48e1e1950d761860f934a1e306a234165ba108efd7d5bfebb45d6c

            SHA512

            4c315132f14da4afec6ea5c05ea29e1209ce936ee629d6a1695aec8139aebe3c3096714543c4fb812fd4fcff0793abd36a2f35b0b448ace351be64108a85d537

          • \Windows\SysWOW64\netupdsrv.exe

            Filesize

            158KB

            MD5

            0cd0b8b60f5d8e7a1e82f14bd614df02

            SHA1

            27e597bb7fd50d5505dad82c7245c837a1049a1e

            SHA256

            c01978c49517075443b8d04d06273f20953546119f1be013cc1d7ff9704f14e6

            SHA512

            aa0bc00d003616a6280da71d59f30eef2e8aff626286c995edbb3de3add97b2b7a8365726588b56c5bb669ee8518d06e2a4cdb5a0e57a79cce32a2acb03c7f26

          • memory/468-62-0x0000000000000000-mapping.dmp

          • memory/544-64-0x0000000000000000-mapping.dmp

          • memory/940-88-0x0000000000000000-mapping.dmp

          • memory/1428-58-0x0000000000000000-mapping.dmp

          • memory/1496-77-0x0000000000000000-mapping.dmp

          • memory/1508-82-0x0000000000000000-mapping.dmp

          • memory/1632-54-0x0000000075BE1000-0x0000000075BE3000-memory.dmp

            Filesize

            8KB

          • memory/1632-69-0x0000000000360000-0x00000000007BE000-memory.dmp

            Filesize

            4.4MB

          • memory/1632-91-0x0000000000360000-0x00000000007BE000-memory.dmp

            Filesize

            4.4MB

          • memory/1632-55-0x0000000000360000-0x00000000007BE000-memory.dmp

            Filesize

            4.4MB

          • memory/1656-71-0x0000000000000000-mapping.dmp

          • memory/1752-59-0x0000000000000000-mapping.dmp

          • memory/1768-61-0x0000000000000000-mapping.dmp

          • memory/1844-87-0x0000000000000000-mapping.dmp

          • memory/2028-81-0x0000000000000000-mapping.dmp