Analysis

  • max time kernel
    47s
  • max time network
    34s
  • platform
    windows7_x64
  • resource
    win7-20221111-en
  • resource tags

    arch:x64arch:x86image:win7-20221111-enlocale:en-usos:windows7-x64system
  • submitted
    23-11-2022 10:33

General

  • Target

    14038c6094576dcfab9e544c07a72d148a03e3888887f8ded9b8318663440845.exe

  • Size

    602KB

  • MD5

    088c035348f8cd94fde6b7c0ea1e27b2

  • SHA1

    c78fcfb59bbc0a2408e2a18807141b2a72bcdbf3

  • SHA256

    14038c6094576dcfab9e544c07a72d148a03e3888887f8ded9b8318663440845

  • SHA512

    2476409075b39fe5f2e01fdc395bcfc0159072313e6a00c06ea1bd317c730a2ab92105e18e80a302bd0d16c312d654543af7b489e8254cfda69dac8410a3d2fb

  • SSDEEP

    12288:7Iny5DYTSINLNvAQ3Y5R/NAnbYehOFAy7pyiOGQJ4fv8R4g2vsYwks:DUTSShvXY/NybPcXlJQ4fB1Dw

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\14038c6094576dcfab9e544c07a72d148a03e3888887f8ded9b8318663440845.exe
    "C:\Users\Admin\AppData\Local\Temp\14038c6094576dcfab9e544c07a72d148a03e3888887f8ded9b8318663440845.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:772
    • C:\Windows\SysWOW64\net.exe
      net stop nethttpservice
      2⤵
      • Suspicious use of WriteProcessMemory
      PID:1816
      • C:\Windows\SysWOW64\net1.exe
        C:\Windows\system32\net1 stop nethttpservice
        3⤵
          PID:1076
      • C:\Windows\SysWOW64\net.exe
        net stop serviceupdater
        2⤵
        • Suspicious use of WriteProcessMemory
        PID:1748
        • 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:608
        • C:\Windows\SysWOW64\nethtsrv.exe
          "C:\Windows\system32\nethtsrv.exe" -nfdi
          2⤵
          • Executes dropped EXE
          • Loads dropped DLL
          PID:932
        • C:\Windows\SysWOW64\netupdsrv.exe
          "C:\Windows\system32\netupdsrv.exe" -nfdi
          2⤵
          • Executes dropped EXE
          PID:1664
        • C:\Windows\SysWOW64\net.exe
          net start nethttpservice
          2⤵
          • Suspicious use of WriteProcessMemory
          PID:368
          • C:\Windows\SysWOW64\net1.exe
            C:\Windows\system32\net1 start nethttpservice
            3⤵
              PID:1756
          • C:\Windows\SysWOW64\net.exe
            net start serviceupdater
            2⤵
            • Suspicious use of WriteProcessMemory
            PID:1564
            • C:\Windows\SysWOW64\net1.exe
              C:\Windows\system32\net1 start serviceupdater
              3⤵
                PID:1496
          • C:\Windows\SysWOW64\nethtsrv.exe
            C:\Windows\SysWOW64\nethtsrv.exe
            1⤵
            • Executes dropped EXE
            • Loads dropped DLL
            • Suspicious use of AdjustPrivilegeToken
            PID:636
          • C:\Windows\SysWOW64\netupdsrv.exe
            C:\Windows\SysWOW64\netupdsrv.exe
            1⤵
            • Executes dropped EXE
            PID:840

          Network

          MITRE ATT&CK Enterprise v6

          Replay Monitor

          Loading Replay Monitor...

          Downloads

          • C:\Windows\SysWOW64\hfnapi.dll

            Filesize

            106KB

            MD5

            e61b4c6691ae677a375e6589548b12bf

            SHA1

            7b93b1026fc7684a553f8f3af957ac389dfe2be4

            SHA256

            a3eb89d769d3793c6e08cc400b6daeea5ed64b4fe6a6765136d54b31574f5dc5

            SHA512

            77f6c874c1b9cdd751f5076db7a6a1bc5f816a5ad7cf374fb569a8b9d3c1a6a06ce74d5bc89a5cea31eeaf460146b08385d9f76f0eb5b991977015086491f997

          • C:\Windows\SysWOW64\hfpapi.dll

            Filesize

            241KB

            MD5

            ce9720f93c595b9a1b06cd6ebcb99ed3

            SHA1

            05deabed1db10c9139db08eef88c54056ae6c92d

            SHA256

            07467ee09eed6da8c4cda1ae839e02fb1415af6ffd5d23f1c12fd2ab63c56ce2

            SHA512

            b10679e315d84f716f8fdf12f85019bd13ca5b9572e91a32fd2176803dc5db8d7e00f80bbcd370c7315925a7ab7019d451c818b68d2acf90cc877db37d65caf0

          • C:\Windows\SysWOW64\installd.exe

            Filesize

            108KB

            MD5

            fe45631fd311606576c1f2bd987260e0

            SHA1

            36aa324d58c3c52f3090f9551430c46a2ceb1adb

            SHA256

            f9a370610a756efc8bc78f18a0e2bdaece641f504df8205b96cdb5396bc648b4

            SHA512

            1ce2c39b8cf3b76533ca96d91ff1abda5e92130a445643e42665a2f90aa22818bbe757930527096362cbfd2ea2186ae5c96873f4ef98e0185bd36f57a0cd2892

          • C:\Windows\SysWOW64\nethtsrv.exe

            Filesize

            176KB

            MD5

            431376ee649b05e89d7806dcc298ff74

            SHA1

            9a1d8b6ec6d76d31d147c8f9a7505d61dd1621c9

            SHA256

            664542dbc73695e088bc5f5a299d8817176b2511cb55247b3f088a415f9103ba

            SHA512

            411e8b65ad08bc2bd915d2c955cb08bca0a15ee27c9b54ddd066085d975b7eda9c43d754e7ffd41e0b2ef4e70d3bb9c52cbdf5219245556aaa8a26268542afd4

          • C:\Windows\SysWOW64\nethtsrv.exe

            Filesize

            176KB

            MD5

            431376ee649b05e89d7806dcc298ff74

            SHA1

            9a1d8b6ec6d76d31d147c8f9a7505d61dd1621c9

            SHA256

            664542dbc73695e088bc5f5a299d8817176b2511cb55247b3f088a415f9103ba

            SHA512

            411e8b65ad08bc2bd915d2c955cb08bca0a15ee27c9b54ddd066085d975b7eda9c43d754e7ffd41e0b2ef4e70d3bb9c52cbdf5219245556aaa8a26268542afd4

          • C:\Windows\SysWOW64\netupdsrv.exe

            Filesize

            158KB

            MD5

            8da61106bdcf8cd0fea3ab9f95029e58

            SHA1

            9e07b73087882d4a54145b23428eb86b3fc97400

            SHA256

            b144907414c7e50ceb7b055c6d1e3d14d8f6019d658be37c73a30972fc7671c6

            SHA512

            a77ea670083443a1ff40779f250037d9eb4e9632c8353439362c9a4bb9078e6d8723ddeceb95390bca1a73520b1a5cfb1d0097ce83c5d500bb5a1323e18d7a12

          • C:\Windows\SysWOW64\netupdsrv.exe

            Filesize

            158KB

            MD5

            8da61106bdcf8cd0fea3ab9f95029e58

            SHA1

            9e07b73087882d4a54145b23428eb86b3fc97400

            SHA256

            b144907414c7e50ceb7b055c6d1e3d14d8f6019d658be37c73a30972fc7671c6

            SHA512

            a77ea670083443a1ff40779f250037d9eb4e9632c8353439362c9a4bb9078e6d8723ddeceb95390bca1a73520b1a5cfb1d0097ce83c5d500bb5a1323e18d7a12

          • \Users\Admin\AppData\Local\Temp\nseEB9A.tmp\System.dll

            Filesize

            11KB

            MD5

            c17103ae9072a06da581dec998343fc1

            SHA1

            b72148c6bdfaada8b8c3f950e610ee7cf1da1f8d

            SHA256

            dc58d8ad81cacb0c1ed72e33bff8f23ea40b5252b5bb55d393a0903e6819ae2f

            SHA512

            d32a71aaef18e993f28096d536e41c4d016850721b31171513ce28bbd805a54fd290b7c3e9d935f72e676a1acfb4f0dcc89d95040a0dd29f2b6975855c18986f

          • \Users\Admin\AppData\Local\Temp\nseEB9A.tmp\nsExec.dll

            Filesize

            6KB

            MD5

            acc2b699edfea5bf5aae45aba3a41e96

            SHA1

            d2accf4d494e43ceb2cff69abe4dd17147d29cc2

            SHA256

            168a974eaa3f588d759db3f47c1a9fdc3494ba1fa1a73a84e5e3b2a4d58abd7e

            SHA512

            e29ea10ada98c71a18273b04f44f385b120d4e8473e441ce5748cfa44a23648814f2656f429b85440157988c88de776c6ac008dc38bf09cbb746c230a46c69fe

          • \Users\Admin\AppData\Local\Temp\nseEB9A.tmp\nsExec.dll

            Filesize

            6KB

            MD5

            acc2b699edfea5bf5aae45aba3a41e96

            SHA1

            d2accf4d494e43ceb2cff69abe4dd17147d29cc2

            SHA256

            168a974eaa3f588d759db3f47c1a9fdc3494ba1fa1a73a84e5e3b2a4d58abd7e

            SHA512

            e29ea10ada98c71a18273b04f44f385b120d4e8473e441ce5748cfa44a23648814f2656f429b85440157988c88de776c6ac008dc38bf09cbb746c230a46c69fe

          • \Users\Admin\AppData\Local\Temp\nseEB9A.tmp\nsExec.dll

            Filesize

            6KB

            MD5

            acc2b699edfea5bf5aae45aba3a41e96

            SHA1

            d2accf4d494e43ceb2cff69abe4dd17147d29cc2

            SHA256

            168a974eaa3f588d759db3f47c1a9fdc3494ba1fa1a73a84e5e3b2a4d58abd7e

            SHA512

            e29ea10ada98c71a18273b04f44f385b120d4e8473e441ce5748cfa44a23648814f2656f429b85440157988c88de776c6ac008dc38bf09cbb746c230a46c69fe

          • \Users\Admin\AppData\Local\Temp\nseEB9A.tmp\nsExec.dll

            Filesize

            6KB

            MD5

            acc2b699edfea5bf5aae45aba3a41e96

            SHA1

            d2accf4d494e43ceb2cff69abe4dd17147d29cc2

            SHA256

            168a974eaa3f588d759db3f47c1a9fdc3494ba1fa1a73a84e5e3b2a4d58abd7e

            SHA512

            e29ea10ada98c71a18273b04f44f385b120d4e8473e441ce5748cfa44a23648814f2656f429b85440157988c88de776c6ac008dc38bf09cbb746c230a46c69fe

          • \Windows\SysWOW64\hfnapi.dll

            Filesize

            106KB

            MD5

            e61b4c6691ae677a375e6589548b12bf

            SHA1

            7b93b1026fc7684a553f8f3af957ac389dfe2be4

            SHA256

            a3eb89d769d3793c6e08cc400b6daeea5ed64b4fe6a6765136d54b31574f5dc5

            SHA512

            77f6c874c1b9cdd751f5076db7a6a1bc5f816a5ad7cf374fb569a8b9d3c1a6a06ce74d5bc89a5cea31eeaf460146b08385d9f76f0eb5b991977015086491f997

          • \Windows\SysWOW64\hfnapi.dll

            Filesize

            106KB

            MD5

            e61b4c6691ae677a375e6589548b12bf

            SHA1

            7b93b1026fc7684a553f8f3af957ac389dfe2be4

            SHA256

            a3eb89d769d3793c6e08cc400b6daeea5ed64b4fe6a6765136d54b31574f5dc5

            SHA512

            77f6c874c1b9cdd751f5076db7a6a1bc5f816a5ad7cf374fb569a8b9d3c1a6a06ce74d5bc89a5cea31eeaf460146b08385d9f76f0eb5b991977015086491f997

          • \Windows\SysWOW64\hfnapi.dll

            Filesize

            106KB

            MD5

            e61b4c6691ae677a375e6589548b12bf

            SHA1

            7b93b1026fc7684a553f8f3af957ac389dfe2be4

            SHA256

            a3eb89d769d3793c6e08cc400b6daeea5ed64b4fe6a6765136d54b31574f5dc5

            SHA512

            77f6c874c1b9cdd751f5076db7a6a1bc5f816a5ad7cf374fb569a8b9d3c1a6a06ce74d5bc89a5cea31eeaf460146b08385d9f76f0eb5b991977015086491f997

          • \Windows\SysWOW64\hfpapi.dll

            Filesize

            241KB

            MD5

            ce9720f93c595b9a1b06cd6ebcb99ed3

            SHA1

            05deabed1db10c9139db08eef88c54056ae6c92d

            SHA256

            07467ee09eed6da8c4cda1ae839e02fb1415af6ffd5d23f1c12fd2ab63c56ce2

            SHA512

            b10679e315d84f716f8fdf12f85019bd13ca5b9572e91a32fd2176803dc5db8d7e00f80bbcd370c7315925a7ab7019d451c818b68d2acf90cc877db37d65caf0

          • \Windows\SysWOW64\hfpapi.dll

            Filesize

            241KB

            MD5

            ce9720f93c595b9a1b06cd6ebcb99ed3

            SHA1

            05deabed1db10c9139db08eef88c54056ae6c92d

            SHA256

            07467ee09eed6da8c4cda1ae839e02fb1415af6ffd5d23f1c12fd2ab63c56ce2

            SHA512

            b10679e315d84f716f8fdf12f85019bd13ca5b9572e91a32fd2176803dc5db8d7e00f80bbcd370c7315925a7ab7019d451c818b68d2acf90cc877db37d65caf0

          • \Windows\SysWOW64\installd.exe

            Filesize

            108KB

            MD5

            fe45631fd311606576c1f2bd987260e0

            SHA1

            36aa324d58c3c52f3090f9551430c46a2ceb1adb

            SHA256

            f9a370610a756efc8bc78f18a0e2bdaece641f504df8205b96cdb5396bc648b4

            SHA512

            1ce2c39b8cf3b76533ca96d91ff1abda5e92130a445643e42665a2f90aa22818bbe757930527096362cbfd2ea2186ae5c96873f4ef98e0185bd36f57a0cd2892

          • \Windows\SysWOW64\nethtsrv.exe

            Filesize

            176KB

            MD5

            431376ee649b05e89d7806dcc298ff74

            SHA1

            9a1d8b6ec6d76d31d147c8f9a7505d61dd1621c9

            SHA256

            664542dbc73695e088bc5f5a299d8817176b2511cb55247b3f088a415f9103ba

            SHA512

            411e8b65ad08bc2bd915d2c955cb08bca0a15ee27c9b54ddd066085d975b7eda9c43d754e7ffd41e0b2ef4e70d3bb9c52cbdf5219245556aaa8a26268542afd4

          • \Windows\SysWOW64\netupdsrv.exe

            Filesize

            158KB

            MD5

            8da61106bdcf8cd0fea3ab9f95029e58

            SHA1

            9e07b73087882d4a54145b23428eb86b3fc97400

            SHA256

            b144907414c7e50ceb7b055c6d1e3d14d8f6019d658be37c73a30972fc7671c6

            SHA512

            a77ea670083443a1ff40779f250037d9eb4e9632c8353439362c9a4bb9078e6d8723ddeceb95390bca1a73520b1a5cfb1d0097ce83c5d500bb5a1323e18d7a12

          • memory/368-80-0x0000000000000000-mapping.dmp

          • memory/608-64-0x0000000000000000-mapping.dmp

          • memory/772-54-0x0000000075D01000-0x0000000075D03000-memory.dmp

            Filesize

            8KB

          • memory/772-55-0x0000000000360000-0x00000000007BE000-memory.dmp

            Filesize

            4.4MB

          • memory/772-90-0x0000000000360000-0x00000000007BE000-memory.dmp

            Filesize

            4.4MB

          • memory/932-70-0x0000000000000000-mapping.dmp

          • memory/1076-59-0x0000000000000000-mapping.dmp

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

          • memory/1496-87-0x0000000000000000-mapping.dmp

          • memory/1564-86-0x0000000000000000-mapping.dmp

          • memory/1664-76-0x0000000000000000-mapping.dmp

          • memory/1748-61-0x0000000000000000-mapping.dmp

          • memory/1756-81-0x0000000000000000-mapping.dmp

          • memory/1816-58-0x0000000000000000-mapping.dmp