Analysis

  • max time kernel
    39s
  • max time network
    47s
  • platform
    windows7_x64
  • resource
    win7-20220812-en
  • resource tags

    arch:x64arch:x86image:win7-20220812-enlocale:en-usos:windows7-x64system
  • submitted
    23-11-2022 10:57

General

  • Target

    52a5ba9b9419ed61225a9bf8993b2cdb87a433dd1134fe90c36e9f962b878912.exe

  • Size

    446KB

  • MD5

    9d25b90a6a4820cfee04b8f2a6c5cd7a

  • SHA1

    da85bc5ac5fef1469ce3b81e5e26dcc9828c30ab

  • SHA256

    52a5ba9b9419ed61225a9bf8993b2cdb87a433dd1134fe90c36e9f962b878912

  • SHA512

    51d3b5d450db42f095e0ab325942cdc7deafc37a222829212e2113f995b0e298526bd85bb246b68ecb51d483b50d7e77331299f0c1545dd2f89869fd202c4b3c

  • SSDEEP

    12288:ZrK7Um9yeC5oC0kKlfGbF4LRnQD8CA+8daiS/2rfFT:Zuhce4zZK+bFbXslSQtT

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\52a5ba9b9419ed61225a9bf8993b2cdb87a433dd1134fe90c36e9f962b878912.exe
    "C:\Users\Admin\AppData\Local\Temp\52a5ba9b9419ed61225a9bf8993b2cdb87a433dd1134fe90c36e9f962b878912.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:1400
    • C:\Windows\SysWOW64\net.exe
      net stop nethttpservice
      2⤵
      • Suspicious use of WriteProcessMemory
      PID:1988
      • C:\Windows\SysWOW64\net1.exe
        C:\Windows\system32\net1 stop nethttpservice
        3⤵
          PID:1940
      • C:\Windows\SysWOW64\net.exe
        net stop serviceupdater
        2⤵
        • Suspicious use of WriteProcessMemory
        PID:1968
        • C:\Windows\SysWOW64\net1.exe
          C:\Windows\system32\net1 stop serviceupdater
          3⤵
            PID:1964
        • C:\Windows\SysWOW64\installd.exe
          "C:\Windows\system32\installd.exe" nethfdrv
          2⤵
          • Executes dropped EXE
          • Loads dropped DLL
          PID:1932
        • C:\Windows\SysWOW64\nethtsrv.exe
          "C:\Windows\system32\nethtsrv.exe" -nfdi
          2⤵
          • Executes dropped EXE
          • Loads dropped DLL
          PID:1480
        • C:\Windows\SysWOW64\netupdsrv.exe
          "C:\Windows\system32\netupdsrv.exe" -nfdi
          2⤵
          • Executes dropped EXE
          PID:1604
        • C:\Windows\SysWOW64\net.exe
          net start nethttpservice
          2⤵
          • Suspicious use of WriteProcessMemory
          PID:2004
          • C:\Windows\SysWOW64\net1.exe
            C:\Windows\system32\net1 start nethttpservice
            3⤵
              PID:560
          • C:\Windows\SysWOW64\net.exe
            net start serviceupdater
            2⤵
            • Suspicious use of WriteProcessMemory
            PID:880
            • C:\Windows\SysWOW64\net1.exe
              C:\Windows\system32\net1 start serviceupdater
              3⤵
                PID:1712
          • C:\Windows\SysWOW64\nethtsrv.exe
            C:\Windows\SysWOW64\nethtsrv.exe
            1⤵
            • Executes dropped EXE
            • Loads dropped DLL
            • Suspicious use of AdjustPrivilegeToken
            PID:1680
          • C:\Windows\SysWOW64\netupdsrv.exe
            C:\Windows\SysWOW64\netupdsrv.exe
            1⤵
            • Executes dropped EXE
            PID:1828

          Network

          MITRE ATT&CK Enterprise v6

          Replay Monitor

          Loading Replay Monitor...

          Downloads

          • C:\Windows\SysWOW64\hfnapi.dll

            Filesize

            106KB

            MD5

            3487edc9b42ce3c5d0549737bd8f4be6

            SHA1

            aa77653d2b66c53b1c19a381d98dd771803e0cac

            SHA256

            2543a86950dc5e8017fa82aa2a7c0bf4117e644018c8d3e9c602deda8240edf3

            SHA512

            5ff931c0871c8ac4557f74c9f9f988cf31cfc2546df069b923c758f64d96bacb6348b083c2c38f1641d1ad53d802ce3c0696b73bc23b7c80e718ca870c871970

          • C:\Windows\SysWOW64\hfpapi.dll

            Filesize

            241KB

            MD5

            3001a87898288d1ecc6d8c7b81878fd6

            SHA1

            bb99d8f781feeb5cfc0a06722aec33e5fe6b88fc

            SHA256

            4f9175ca1fc32a4e8c6d0c8ad405ec3faa0c9098e3e062e53fd82431fd24e5e4

            SHA512

            fa6bfe59aa3091fd20d86d5b8d52d1ca63980d5f75d7a220e45ce6a62ddcb0a4a95bc1819596436a03155cb784e3af83e45b07a5c136c59c3ac83e74e925d9ea

          • C:\Windows\SysWOW64\installd.exe

            Filesize

            108KB

            MD5

            02ea28d725b8936b35c4fabd821c7fbd

            SHA1

            467d0c30ee72fcea5123a7cf80f577925248f550

            SHA256

            3bab2f0ae01d67bccc999c840bfce58c9efe01448ad25e1e2e5f163601d9f9df

            SHA512

            e4861fc1ec699083a2cda2f704f7e22f3086c01004a394eee3887432be65b85a559afe647a6520959b5bbbb3ef9dafc8f97597dc4f0b5e1eb09150f9fef86423

          • C:\Windows\SysWOW64\nethtsrv.exe

            Filesize

            176KB

            MD5

            ff62382e31cd1f9443fa34e306f6bd63

            SHA1

            4e8b0f8192df343de9f9eebbd75e78d803bc4873

            SHA256

            d2eb915ecf69d9a11c94e7de49a7ea7a75ca84511da0f41899849feacc8b3f07

            SHA512

            10b05e3754a175af382ddf00596d382715a1c973c16e39c07a65d59321cce769310ede279989cc573d331864e2bd9ed156000a0f088b0c8bbc30dd3867bda32c

          • C:\Windows\SysWOW64\nethtsrv.exe

            Filesize

            176KB

            MD5

            ff62382e31cd1f9443fa34e306f6bd63

            SHA1

            4e8b0f8192df343de9f9eebbd75e78d803bc4873

            SHA256

            d2eb915ecf69d9a11c94e7de49a7ea7a75ca84511da0f41899849feacc8b3f07

            SHA512

            10b05e3754a175af382ddf00596d382715a1c973c16e39c07a65d59321cce769310ede279989cc573d331864e2bd9ed156000a0f088b0c8bbc30dd3867bda32c

          • C:\Windows\SysWOW64\netupdsrv.exe

            Filesize

            158KB

            MD5

            89792477aa3759ac381a3424a548699f

            SHA1

            ea0cc54a809bfd1ee39c269e36011d3123115f7c

            SHA256

            2ad3fd56ef5343c654128dca199cb38e4e0e438d5d8d552c8f1450612beddcad

            SHA512

            bc46e5cfbd449a357c3008e8c550b444059eaada052254b1c9fb7e5b010a990c3c590a28c6dddde989831e2ada3e6a8d7043313779cec8cba3ae202d8c778e6e

          • C:\Windows\SysWOW64\netupdsrv.exe

            Filesize

            158KB

            MD5

            89792477aa3759ac381a3424a548699f

            SHA1

            ea0cc54a809bfd1ee39c269e36011d3123115f7c

            SHA256

            2ad3fd56ef5343c654128dca199cb38e4e0e438d5d8d552c8f1450612beddcad

            SHA512

            bc46e5cfbd449a357c3008e8c550b444059eaada052254b1c9fb7e5b010a990c3c590a28c6dddde989831e2ada3e6a8d7043313779cec8cba3ae202d8c778e6e

          • \Users\Admin\AppData\Local\Temp\nsy14FA.tmp\System.dll

            Filesize

            11KB

            MD5

            c17103ae9072a06da581dec998343fc1

            SHA1

            b72148c6bdfaada8b8c3f950e610ee7cf1da1f8d

            SHA256

            dc58d8ad81cacb0c1ed72e33bff8f23ea40b5252b5bb55d393a0903e6819ae2f

            SHA512

            d32a71aaef18e993f28096d536e41c4d016850721b31171513ce28bbd805a54fd290b7c3e9d935f72e676a1acfb4f0dcc89d95040a0dd29f2b6975855c18986f

          • \Users\Admin\AppData\Local\Temp\nsy14FA.tmp\nsExec.dll

            Filesize

            6KB

            MD5

            acc2b699edfea5bf5aae45aba3a41e96

            SHA1

            d2accf4d494e43ceb2cff69abe4dd17147d29cc2

            SHA256

            168a974eaa3f588d759db3f47c1a9fdc3494ba1fa1a73a84e5e3b2a4d58abd7e

            SHA512

            e29ea10ada98c71a18273b04f44f385b120d4e8473e441ce5748cfa44a23648814f2656f429b85440157988c88de776c6ac008dc38bf09cbb746c230a46c69fe

          • \Users\Admin\AppData\Local\Temp\nsy14FA.tmp\nsExec.dll

            Filesize

            6KB

            MD5

            acc2b699edfea5bf5aae45aba3a41e96

            SHA1

            d2accf4d494e43ceb2cff69abe4dd17147d29cc2

            SHA256

            168a974eaa3f588d759db3f47c1a9fdc3494ba1fa1a73a84e5e3b2a4d58abd7e

            SHA512

            e29ea10ada98c71a18273b04f44f385b120d4e8473e441ce5748cfa44a23648814f2656f429b85440157988c88de776c6ac008dc38bf09cbb746c230a46c69fe

          • \Users\Admin\AppData\Local\Temp\nsy14FA.tmp\nsExec.dll

            Filesize

            6KB

            MD5

            acc2b699edfea5bf5aae45aba3a41e96

            SHA1

            d2accf4d494e43ceb2cff69abe4dd17147d29cc2

            SHA256

            168a974eaa3f588d759db3f47c1a9fdc3494ba1fa1a73a84e5e3b2a4d58abd7e

            SHA512

            e29ea10ada98c71a18273b04f44f385b120d4e8473e441ce5748cfa44a23648814f2656f429b85440157988c88de776c6ac008dc38bf09cbb746c230a46c69fe

          • \Users\Admin\AppData\Local\Temp\nsy14FA.tmp\nsExec.dll

            Filesize

            6KB

            MD5

            acc2b699edfea5bf5aae45aba3a41e96

            SHA1

            d2accf4d494e43ceb2cff69abe4dd17147d29cc2

            SHA256

            168a974eaa3f588d759db3f47c1a9fdc3494ba1fa1a73a84e5e3b2a4d58abd7e

            SHA512

            e29ea10ada98c71a18273b04f44f385b120d4e8473e441ce5748cfa44a23648814f2656f429b85440157988c88de776c6ac008dc38bf09cbb746c230a46c69fe

          • \Windows\SysWOW64\hfnapi.dll

            Filesize

            106KB

            MD5

            3487edc9b42ce3c5d0549737bd8f4be6

            SHA1

            aa77653d2b66c53b1c19a381d98dd771803e0cac

            SHA256

            2543a86950dc5e8017fa82aa2a7c0bf4117e644018c8d3e9c602deda8240edf3

            SHA512

            5ff931c0871c8ac4557f74c9f9f988cf31cfc2546df069b923c758f64d96bacb6348b083c2c38f1641d1ad53d802ce3c0696b73bc23b7c80e718ca870c871970

          • \Windows\SysWOW64\hfnapi.dll

            Filesize

            106KB

            MD5

            3487edc9b42ce3c5d0549737bd8f4be6

            SHA1

            aa77653d2b66c53b1c19a381d98dd771803e0cac

            SHA256

            2543a86950dc5e8017fa82aa2a7c0bf4117e644018c8d3e9c602deda8240edf3

            SHA512

            5ff931c0871c8ac4557f74c9f9f988cf31cfc2546df069b923c758f64d96bacb6348b083c2c38f1641d1ad53d802ce3c0696b73bc23b7c80e718ca870c871970

          • \Windows\SysWOW64\hfnapi.dll

            Filesize

            106KB

            MD5

            3487edc9b42ce3c5d0549737bd8f4be6

            SHA1

            aa77653d2b66c53b1c19a381d98dd771803e0cac

            SHA256

            2543a86950dc5e8017fa82aa2a7c0bf4117e644018c8d3e9c602deda8240edf3

            SHA512

            5ff931c0871c8ac4557f74c9f9f988cf31cfc2546df069b923c758f64d96bacb6348b083c2c38f1641d1ad53d802ce3c0696b73bc23b7c80e718ca870c871970

          • \Windows\SysWOW64\hfpapi.dll

            Filesize

            241KB

            MD5

            3001a87898288d1ecc6d8c7b81878fd6

            SHA1

            bb99d8f781feeb5cfc0a06722aec33e5fe6b88fc

            SHA256

            4f9175ca1fc32a4e8c6d0c8ad405ec3faa0c9098e3e062e53fd82431fd24e5e4

            SHA512

            fa6bfe59aa3091fd20d86d5b8d52d1ca63980d5f75d7a220e45ce6a62ddcb0a4a95bc1819596436a03155cb784e3af83e45b07a5c136c59c3ac83e74e925d9ea

          • \Windows\SysWOW64\hfpapi.dll

            Filesize

            241KB

            MD5

            3001a87898288d1ecc6d8c7b81878fd6

            SHA1

            bb99d8f781feeb5cfc0a06722aec33e5fe6b88fc

            SHA256

            4f9175ca1fc32a4e8c6d0c8ad405ec3faa0c9098e3e062e53fd82431fd24e5e4

            SHA512

            fa6bfe59aa3091fd20d86d5b8d52d1ca63980d5f75d7a220e45ce6a62ddcb0a4a95bc1819596436a03155cb784e3af83e45b07a5c136c59c3ac83e74e925d9ea

          • \Windows\SysWOW64\installd.exe

            Filesize

            108KB

            MD5

            02ea28d725b8936b35c4fabd821c7fbd

            SHA1

            467d0c30ee72fcea5123a7cf80f577925248f550

            SHA256

            3bab2f0ae01d67bccc999c840bfce58c9efe01448ad25e1e2e5f163601d9f9df

            SHA512

            e4861fc1ec699083a2cda2f704f7e22f3086c01004a394eee3887432be65b85a559afe647a6520959b5bbbb3ef9dafc8f97597dc4f0b5e1eb09150f9fef86423

          • \Windows\SysWOW64\nethtsrv.exe

            Filesize

            176KB

            MD5

            ff62382e31cd1f9443fa34e306f6bd63

            SHA1

            4e8b0f8192df343de9f9eebbd75e78d803bc4873

            SHA256

            d2eb915ecf69d9a11c94e7de49a7ea7a75ca84511da0f41899849feacc8b3f07

            SHA512

            10b05e3754a175af382ddf00596d382715a1c973c16e39c07a65d59321cce769310ede279989cc573d331864e2bd9ed156000a0f088b0c8bbc30dd3867bda32c

          • \Windows\SysWOW64\netupdsrv.exe

            Filesize

            158KB

            MD5

            89792477aa3759ac381a3424a548699f

            SHA1

            ea0cc54a809bfd1ee39c269e36011d3123115f7c

            SHA256

            2ad3fd56ef5343c654128dca199cb38e4e0e438d5d8d552c8f1450612beddcad

            SHA512

            bc46e5cfbd449a357c3008e8c550b444059eaada052254b1c9fb7e5b010a990c3c590a28c6dddde989831e2ada3e6a8d7043313779cec8cba3ae202d8c778e6e

          • memory/560-80-0x0000000000000000-mapping.dmp

          • memory/880-85-0x0000000000000000-mapping.dmp

          • memory/1400-54-0x0000000075571000-0x0000000075573000-memory.dmp

            Filesize

            8KB

          • memory/1480-69-0x0000000000000000-mapping.dmp

          • memory/1604-75-0x0000000000000000-mapping.dmp

          • memory/1712-86-0x0000000000000000-mapping.dmp

          • memory/1932-63-0x0000000000000000-mapping.dmp

          • memory/1940-58-0x0000000000000000-mapping.dmp

          • memory/1964-61-0x0000000000000000-mapping.dmp

          • memory/1968-60-0x0000000000000000-mapping.dmp

          • memory/1988-57-0x0000000000000000-mapping.dmp

          • memory/2004-79-0x0000000000000000-mapping.dmp