Analysis

  • max time kernel
    45s
  • max time network
    49s
  • platform
    windows7_x64
  • resource
    win7-20220901-en
  • resource tags

    arch:x64arch:x86image:win7-20220901-enlocale:en-usos:windows7-x64system
  • submitted
    23-11-2022 10:50

General

  • Target

    eb918dc44115db9a3c52687811269b9c1f1a6b2322317c74cc33a27cfe128ff2.exe

  • Size

    445KB

  • MD5

    3ecea9932f081d3a3565c49f198f8ea9

  • SHA1

    e84f6cb03cbcffc85c466b7204d3ccd41b2f4ec1

  • SHA256

    eb918dc44115db9a3c52687811269b9c1f1a6b2322317c74cc33a27cfe128ff2

  • SHA512

    069ce766da8559c5c2df9d8ca77ae756681be26b1c4db0eb3cd0f994cb592f27407dc2e7b953fa114dfac37cd6589db7bd3af947d3d0d0aae472f5dc21913cfe

  • SSDEEP

    12288:eT+GY6wWPpD+0vrby2ky4ciSS3x5ab7x6SM6xOUFA92:eT+uwWPRrbL4ciH0lq6292

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\eb918dc44115db9a3c52687811269b9c1f1a6b2322317c74cc33a27cfe128ff2.exe
    "C:\Users\Admin\AppData\Local\Temp\eb918dc44115db9a3c52687811269b9c1f1a6b2322317c74cc33a27cfe128ff2.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:1492
    • C:\Windows\SysWOW64\net.exe
      net stop nethttpservice
      2⤵
      • Suspicious use of WriteProcessMemory
      PID:1160
      • C:\Windows\SysWOW64\net1.exe
        C:\Windows\system32\net1 stop nethttpservice
        3⤵
          PID:696
      • C:\Windows\SysWOW64\net.exe
        net stop serviceupdater
        2⤵
        • Suspicious use of WriteProcessMemory
        PID:296
        • C:\Windows\SysWOW64\net1.exe
          C:\Windows\system32\net1 stop serviceupdater
          3⤵
            PID:1936
        • C:\Windows\SysWOW64\installd.exe
          "C:\Windows\system32\installd.exe" nethfdrv
          2⤵
          • Executes dropped EXE
          • Loads dropped DLL
          PID:1368
        • C:\Windows\SysWOW64\nethtsrv.exe
          "C:\Windows\system32\nethtsrv.exe" -nfdi
          2⤵
          • Executes dropped EXE
          • Loads dropped DLL
          PID:840
        • C:\Windows\SysWOW64\netupdsrv.exe
          "C:\Windows\system32\netupdsrv.exe" -nfdi
          2⤵
          • Executes dropped EXE
          PID:1392
        • C:\Windows\SysWOW64\net.exe
          net start nethttpservice
          2⤵
          • Suspicious use of WriteProcessMemory
          PID:1904
          • C:\Windows\SysWOW64\net1.exe
            C:\Windows\system32\net1 start nethttpservice
            3⤵
              PID:1144
          • C:\Windows\SysWOW64\net.exe
            net start serviceupdater
            2⤵
            • Suspicious use of WriteProcessMemory
            PID:1996
            • C:\Windows\SysWOW64\net1.exe
              C:\Windows\system32\net1 start serviceupdater
              3⤵
                PID:1604
          • C:\Windows\SysWOW64\nethtsrv.exe
            C:\Windows\SysWOW64\nethtsrv.exe
            1⤵
            • Executes dropped EXE
            • Loads dropped DLL
            • Suspicious use of AdjustPrivilegeToken
            PID:804
          • C:\Windows\SysWOW64\netupdsrv.exe
            C:\Windows\SysWOW64\netupdsrv.exe
            1⤵
            • Executes dropped EXE
            PID:1856

          Network

          MITRE ATT&CK Enterprise v6

          Replay Monitor

          Loading Replay Monitor...

          Downloads

          • C:\Windows\SysWOW64\hfnapi.dll
            Filesize

            106KB

            MD5

            f4dbe8978ecaaf16967f340d46abf66c

            SHA1

            e2ea46abced03b6d158ea63713a8df1b977bf836

            SHA256

            c451bc0eeb6adfd4b1e1fdd30669cfc424000a56e4c27f926563dd1245caeb32

            SHA512

            503b7e283834d29a3f65e6b25e5198b3674edcef0555bf9cffb849dfd778aa92eb9e67bb1d5a7b9c6999db0c5881b125dd706748bcf40ebf5198c903434cf425

          • C:\Windows\SysWOW64\hfpapi.dll
            Filesize

            241KB

            MD5

            9dcd3ab216e66a2a001653b5f6988d60

            SHA1

            b3c93a4ad4286063df180961c4c075d967756ea1

            SHA256

            c12e866c92ae139f0d7c7673b93257f1a8f251cf62746ac2c1ce419936486a13

            SHA512

            b724cc7460cb32de85b1e7cfe7ff2ccf1b195fad79912dca536612cd6c1c44c94a52f647a0090b5c4053d2e80067d9a22102ad9a5a8fc21d948a850e80b133ba

          • C:\Windows\SysWOW64\installd.exe
            Filesize

            108KB

            MD5

            f3aabc3d0324d011ca49563ee9895f13

            SHA1

            03a5f444f52fc421339f223a2203fd88d347184e

            SHA256

            9f7e97759662f7dcedca308b1faf51ed1abf5c9839816a7d5971fb2528d69627

            SHA512

            2809efc67416190806513c02cd1d7d21200b86bfb649e923cabb6da7d59346b9833da83a39bb2da4ddc807d79cd2876c71ea01e61951347ffbed5cffde05d029

          • C:\Windows\SysWOW64\nethtsrv.exe
            Filesize

            176KB

            MD5

            5335b3f8ca9ad7dcdacceb917f75e179

            SHA1

            03103947461b718aa953ad86cd672af4d1117c1e

            SHA256

            2fdeae80897b0f4ac409a7d04520f17f49b9cba07296633f6526cca43b1cb28c

            SHA512

            633630e04067d9fac30bda20e029f8537638658c2a13b4b4cc02a45cd48bb14772b0043945581165c7a96f513c06f86881dc9f2675c8912a19ee445b069d40f5

          • C:\Windows\SysWOW64\nethtsrv.exe
            Filesize

            176KB

            MD5

            5335b3f8ca9ad7dcdacceb917f75e179

            SHA1

            03103947461b718aa953ad86cd672af4d1117c1e

            SHA256

            2fdeae80897b0f4ac409a7d04520f17f49b9cba07296633f6526cca43b1cb28c

            SHA512

            633630e04067d9fac30bda20e029f8537638658c2a13b4b4cc02a45cd48bb14772b0043945581165c7a96f513c06f86881dc9f2675c8912a19ee445b069d40f5

          • C:\Windows\SysWOW64\netupdsrv.exe
            Filesize

            158KB

            MD5

            bb7234e010cefc70c708b78432a635d3

            SHA1

            798dd8920cca16e9f7fa605b44f7b4ec3352eda0

            SHA256

            f8a4ec9b2593567f7e50e871f77bcf6a9e4bc99d99fa453a279d04b925c7d96e

            SHA512

            a29e0108e3ed84e14201346fb247e274603178d0cf9dba36de8a16d1c7835d9d683b590699051d52d71f3ae74e51b2b7af6b96d69041504ac4bb6dc16f6e4eb7

          • C:\Windows\SysWOW64\netupdsrv.exe
            Filesize

            158KB

            MD5

            bb7234e010cefc70c708b78432a635d3

            SHA1

            798dd8920cca16e9f7fa605b44f7b4ec3352eda0

            SHA256

            f8a4ec9b2593567f7e50e871f77bcf6a9e4bc99d99fa453a279d04b925c7d96e

            SHA512

            a29e0108e3ed84e14201346fb247e274603178d0cf9dba36de8a16d1c7835d9d683b590699051d52d71f3ae74e51b2b7af6b96d69041504ac4bb6dc16f6e4eb7

          • \Users\Admin\AppData\Local\Temp\nsyEE2.tmp\System.dll
            Filesize

            11KB

            MD5

            c17103ae9072a06da581dec998343fc1

            SHA1

            b72148c6bdfaada8b8c3f950e610ee7cf1da1f8d

            SHA256

            dc58d8ad81cacb0c1ed72e33bff8f23ea40b5252b5bb55d393a0903e6819ae2f

            SHA512

            d32a71aaef18e993f28096d536e41c4d016850721b31171513ce28bbd805a54fd290b7c3e9d935f72e676a1acfb4f0dcc89d95040a0dd29f2b6975855c18986f

          • \Users\Admin\AppData\Local\Temp\nsyEE2.tmp\nsExec.dll
            Filesize

            6KB

            MD5

            acc2b699edfea5bf5aae45aba3a41e96

            SHA1

            d2accf4d494e43ceb2cff69abe4dd17147d29cc2

            SHA256

            168a974eaa3f588d759db3f47c1a9fdc3494ba1fa1a73a84e5e3b2a4d58abd7e

            SHA512

            e29ea10ada98c71a18273b04f44f385b120d4e8473e441ce5748cfa44a23648814f2656f429b85440157988c88de776c6ac008dc38bf09cbb746c230a46c69fe

          • \Users\Admin\AppData\Local\Temp\nsyEE2.tmp\nsExec.dll
            Filesize

            6KB

            MD5

            acc2b699edfea5bf5aae45aba3a41e96

            SHA1

            d2accf4d494e43ceb2cff69abe4dd17147d29cc2

            SHA256

            168a974eaa3f588d759db3f47c1a9fdc3494ba1fa1a73a84e5e3b2a4d58abd7e

            SHA512

            e29ea10ada98c71a18273b04f44f385b120d4e8473e441ce5748cfa44a23648814f2656f429b85440157988c88de776c6ac008dc38bf09cbb746c230a46c69fe

          • \Users\Admin\AppData\Local\Temp\nsyEE2.tmp\nsExec.dll
            Filesize

            6KB

            MD5

            acc2b699edfea5bf5aae45aba3a41e96

            SHA1

            d2accf4d494e43ceb2cff69abe4dd17147d29cc2

            SHA256

            168a974eaa3f588d759db3f47c1a9fdc3494ba1fa1a73a84e5e3b2a4d58abd7e

            SHA512

            e29ea10ada98c71a18273b04f44f385b120d4e8473e441ce5748cfa44a23648814f2656f429b85440157988c88de776c6ac008dc38bf09cbb746c230a46c69fe

          • \Users\Admin\AppData\Local\Temp\nsyEE2.tmp\nsExec.dll
            Filesize

            6KB

            MD5

            acc2b699edfea5bf5aae45aba3a41e96

            SHA1

            d2accf4d494e43ceb2cff69abe4dd17147d29cc2

            SHA256

            168a974eaa3f588d759db3f47c1a9fdc3494ba1fa1a73a84e5e3b2a4d58abd7e

            SHA512

            e29ea10ada98c71a18273b04f44f385b120d4e8473e441ce5748cfa44a23648814f2656f429b85440157988c88de776c6ac008dc38bf09cbb746c230a46c69fe

          • \Windows\SysWOW64\hfnapi.dll
            Filesize

            106KB

            MD5

            f4dbe8978ecaaf16967f340d46abf66c

            SHA1

            e2ea46abced03b6d158ea63713a8df1b977bf836

            SHA256

            c451bc0eeb6adfd4b1e1fdd30669cfc424000a56e4c27f926563dd1245caeb32

            SHA512

            503b7e283834d29a3f65e6b25e5198b3674edcef0555bf9cffb849dfd778aa92eb9e67bb1d5a7b9c6999db0c5881b125dd706748bcf40ebf5198c903434cf425

          • \Windows\SysWOW64\hfnapi.dll
            Filesize

            106KB

            MD5

            f4dbe8978ecaaf16967f340d46abf66c

            SHA1

            e2ea46abced03b6d158ea63713a8df1b977bf836

            SHA256

            c451bc0eeb6adfd4b1e1fdd30669cfc424000a56e4c27f926563dd1245caeb32

            SHA512

            503b7e283834d29a3f65e6b25e5198b3674edcef0555bf9cffb849dfd778aa92eb9e67bb1d5a7b9c6999db0c5881b125dd706748bcf40ebf5198c903434cf425

          • \Windows\SysWOW64\hfnapi.dll
            Filesize

            106KB

            MD5

            f4dbe8978ecaaf16967f340d46abf66c

            SHA1

            e2ea46abced03b6d158ea63713a8df1b977bf836

            SHA256

            c451bc0eeb6adfd4b1e1fdd30669cfc424000a56e4c27f926563dd1245caeb32

            SHA512

            503b7e283834d29a3f65e6b25e5198b3674edcef0555bf9cffb849dfd778aa92eb9e67bb1d5a7b9c6999db0c5881b125dd706748bcf40ebf5198c903434cf425

          • \Windows\SysWOW64\hfpapi.dll
            Filesize

            241KB

            MD5

            9dcd3ab216e66a2a001653b5f6988d60

            SHA1

            b3c93a4ad4286063df180961c4c075d967756ea1

            SHA256

            c12e866c92ae139f0d7c7673b93257f1a8f251cf62746ac2c1ce419936486a13

            SHA512

            b724cc7460cb32de85b1e7cfe7ff2ccf1b195fad79912dca536612cd6c1c44c94a52f647a0090b5c4053d2e80067d9a22102ad9a5a8fc21d948a850e80b133ba

          • \Windows\SysWOW64\hfpapi.dll
            Filesize

            241KB

            MD5

            9dcd3ab216e66a2a001653b5f6988d60

            SHA1

            b3c93a4ad4286063df180961c4c075d967756ea1

            SHA256

            c12e866c92ae139f0d7c7673b93257f1a8f251cf62746ac2c1ce419936486a13

            SHA512

            b724cc7460cb32de85b1e7cfe7ff2ccf1b195fad79912dca536612cd6c1c44c94a52f647a0090b5c4053d2e80067d9a22102ad9a5a8fc21d948a850e80b133ba

          • \Windows\SysWOW64\installd.exe
            Filesize

            108KB

            MD5

            f3aabc3d0324d011ca49563ee9895f13

            SHA1

            03a5f444f52fc421339f223a2203fd88d347184e

            SHA256

            9f7e97759662f7dcedca308b1faf51ed1abf5c9839816a7d5971fb2528d69627

            SHA512

            2809efc67416190806513c02cd1d7d21200b86bfb649e923cabb6da7d59346b9833da83a39bb2da4ddc807d79cd2876c71ea01e61951347ffbed5cffde05d029

          • \Windows\SysWOW64\nethtsrv.exe
            Filesize

            176KB

            MD5

            5335b3f8ca9ad7dcdacceb917f75e179

            SHA1

            03103947461b718aa953ad86cd672af4d1117c1e

            SHA256

            2fdeae80897b0f4ac409a7d04520f17f49b9cba07296633f6526cca43b1cb28c

            SHA512

            633630e04067d9fac30bda20e029f8537638658c2a13b4b4cc02a45cd48bb14772b0043945581165c7a96f513c06f86881dc9f2675c8912a19ee445b069d40f5

          • \Windows\SysWOW64\netupdsrv.exe
            Filesize

            158KB

            MD5

            bb7234e010cefc70c708b78432a635d3

            SHA1

            798dd8920cca16e9f7fa605b44f7b4ec3352eda0

            SHA256

            f8a4ec9b2593567f7e50e871f77bcf6a9e4bc99d99fa453a279d04b925c7d96e

            SHA512

            a29e0108e3ed84e14201346fb247e274603178d0cf9dba36de8a16d1c7835d9d683b590699051d52d71f3ae74e51b2b7af6b96d69041504ac4bb6dc16f6e4eb7

          • memory/296-60-0x0000000000000000-mapping.dmp
          • memory/696-58-0x0000000000000000-mapping.dmp
          • memory/840-69-0x0000000000000000-mapping.dmp
          • memory/1144-80-0x0000000000000000-mapping.dmp
          • memory/1160-57-0x0000000000000000-mapping.dmp
          • memory/1368-63-0x0000000000000000-mapping.dmp
          • memory/1392-75-0x0000000000000000-mapping.dmp
          • memory/1492-54-0x0000000076BA1000-0x0000000076BA3000-memory.dmp
            Filesize

            8KB

          • memory/1604-86-0x0000000000000000-mapping.dmp
          • memory/1904-79-0x0000000000000000-mapping.dmp
          • memory/1936-61-0x0000000000000000-mapping.dmp
          • memory/1996-85-0x0000000000000000-mapping.dmp