Analysis

  • max time kernel
    41s
  • max time network
    50s
  • platform
    windows7_x64
  • resource
    win7-20220812-en
  • resource tags

    arch:x64arch:x86image:win7-20220812-enlocale:en-usos:windows7-x64system
  • submitted
    23-11-2022 10:22

General

  • Target

    782a6ef46c05ba93a58ddb1647af8465bde23492006586ad62f9b22ad2f5325a.exe

  • Size

    602KB

  • MD5

    c71f1b4753b839e3f7dc5a794462fc7a

  • SHA1

    13e966b1feeff3c66c4533cd411330291fff2e9e

  • SHA256

    782a6ef46c05ba93a58ddb1647af8465bde23492006586ad62f9b22ad2f5325a

  • SHA512

    dc790d3cc4c94f9d4b072d8215efec7346a82d935a4231f0de8d355e3d92830ef3f407b0e4ac80e675fefe34c91acccb6aab735dc8de85740f6f49b77f395e58

  • SSDEEP

    12288:+Iny5DYTgIPZvfF11Bo83lvIOQpDZtirnPANNlxCB39ps34zB1qjKPB:gUTgEZXvfo81z2PeP2N8Nqo+jKZ

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\782a6ef46c05ba93a58ddb1647af8465bde23492006586ad62f9b22ad2f5325a.exe
    "C:\Users\Admin\AppData\Local\Temp\782a6ef46c05ba93a58ddb1647af8465bde23492006586ad62f9b22ad2f5325a.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:1760
    • C:\Windows\SysWOW64\net.exe
      net stop nethttpservice
      2⤵
      • Suspicious use of WriteProcessMemory
      PID:888
      • C:\Windows\SysWOW64\net1.exe
        C:\Windows\system32\net1 stop nethttpservice
        3⤵
          PID:944
      • 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:820
        • C:\Windows\SysWOW64\installd.exe
          "C:\Windows\system32\installd.exe" nethfdrv
          2⤵
          • Executes dropped EXE
          • Loads dropped DLL
          PID:1436
        • C:\Windows\SysWOW64\nethtsrv.exe
          "C:\Windows\system32\nethtsrv.exe" -nfdi
          2⤵
          • Executes dropped EXE
          • Loads dropped DLL
          PID:1784
        • C:\Windows\SysWOW64\netupdsrv.exe
          "C:\Windows\system32\netupdsrv.exe" -nfdi
          2⤵
          • Executes dropped EXE
          PID:680
        • C:\Windows\SysWOW64\net.exe
          net start nethttpservice
          2⤵
          • Suspicious use of WriteProcessMemory
          PID:432
          • C:\Windows\SysWOW64\net1.exe
            C:\Windows\system32\net1 start nethttpservice
            3⤵
              PID:908
          • C:\Windows\SysWOW64\net.exe
            net start serviceupdater
            2⤵
            • Suspicious use of WriteProcessMemory
            PID:1928
            • C:\Windows\SysWOW64\net1.exe
              C:\Windows\system32\net1 start serviceupdater
              3⤵
                PID:1456
          • C:\Windows\SysWOW64\nethtsrv.exe
            C:\Windows\SysWOW64\nethtsrv.exe
            1⤵
            • Executes dropped EXE
            • Loads dropped DLL
            • Suspicious use of AdjustPrivilegeToken
            PID:772
          • C:\Windows\SysWOW64\netupdsrv.exe
            C:\Windows\SysWOW64\netupdsrv.exe
            1⤵
            • Executes dropped EXE
            PID:1256

          Network

          MITRE ATT&CK Enterprise v6

          Replay Monitor

          Loading Replay Monitor...

          Downloads

          • C:\Windows\SysWOW64\hfnapi.dll

            Filesize

            106KB

            MD5

            79767f61cc638c40e912c7a89a834e64

            SHA1

            12fabb7336b21b00bfba5a1a593aaa84846d2474

            SHA256

            302949fbf36cc647848960c7ea8278b183598f704a50052b09d683ff8e2c4c79

            SHA512

            7d75df4b0f5a969b9942f86f1151394b1e95a4c621df11acdc0394d43e2413d91fc41bab2bb4b901438c9b16a80d789d2be72cd0cd8f473a8be3267d7c243c61

          • C:\Windows\SysWOW64\hfpapi.dll

            Filesize

            241KB

            MD5

            65e3723188f20c2984c89c3b0083086b

            SHA1

            f99ef19e69654057358987f930ce059e60fd8f36

            SHA256

            5eb95962008121cc2f441897ba03bd682c8bf414e51f1b3dc9654b6eff4bcb86

            SHA512

            8c80d5efd39cbcdfa9b6102cf83ad30f1123872bd5aa19ca72d4a2e8d09b79e51f18bc3bc1d53e383b29445e4678d52245a3e9393834194235c2c8d7b3fd43c3

          • C:\Windows\SysWOW64\installd.exe

            Filesize

            108KB

            MD5

            1aea85423100cb82c3f83f717c4872af

            SHA1

            bf63f66c4a88737db87c445ca3e1b8ce345e0da3

            SHA256

            a12ae94946ae1a13f0abccc4fdc29ac5c791a13fcf585603f5ce98cb40dcd6a0

            SHA512

            a99030f9b14d7e63a1c0a2589622710940c18113cd4aa8ac882e49b497530b21a01e0eb9ef0f33c79a1875068c465fe149162bb8f55b5d842cf190cac1de0132

          • C:\Windows\SysWOW64\nethtsrv.exe

            Filesize

            176KB

            MD5

            159ad773f34be82dd589ad11bf42d004

            SHA1

            cb3cfe974c343a39df65a65db3e93f0f92067d37

            SHA256

            3dfeac2424cf1bc8be2b4acab7ef3843b26e97265b714a3c01db0ed2a53aea6a

            SHA512

            fc06a558ce24d8c66096808122607b5c4ab38108edb5f6e95c1b91da5dc8441c6dad8bbdd9553d833baf8b2a616ab6c099e635f6bad9c26260fc35807a4438ba

          • C:\Windows\SysWOW64\nethtsrv.exe

            Filesize

            176KB

            MD5

            159ad773f34be82dd589ad11bf42d004

            SHA1

            cb3cfe974c343a39df65a65db3e93f0f92067d37

            SHA256

            3dfeac2424cf1bc8be2b4acab7ef3843b26e97265b714a3c01db0ed2a53aea6a

            SHA512

            fc06a558ce24d8c66096808122607b5c4ab38108edb5f6e95c1b91da5dc8441c6dad8bbdd9553d833baf8b2a616ab6c099e635f6bad9c26260fc35807a4438ba

          • C:\Windows\SysWOW64\netupdsrv.exe

            Filesize

            158KB

            MD5

            8792970d913ed21cb19a6037f9e79439

            SHA1

            1351316e30f47e6f94e39b0dbc8e0d11e4118562

            SHA256

            8ef9d547d833bb6a97ca07ac72b731353c30af1e496adf2648a01136d8527c2e

            SHA512

            8a526df5e8f3084f6f3fb655719b5eb8c158b98011ca4cca85d308ec34b43a9b2af33f41fac01e75aa85593271fb9f3980ead818ca8d51ab031a661f79199f93

          • C:\Windows\SysWOW64\netupdsrv.exe

            Filesize

            158KB

            MD5

            8792970d913ed21cb19a6037f9e79439

            SHA1

            1351316e30f47e6f94e39b0dbc8e0d11e4118562

            SHA256

            8ef9d547d833bb6a97ca07ac72b731353c30af1e496adf2648a01136d8527c2e

            SHA512

            8a526df5e8f3084f6f3fb655719b5eb8c158b98011ca4cca85d308ec34b43a9b2af33f41fac01e75aa85593271fb9f3980ead818ca8d51ab031a661f79199f93

          • \Users\Admin\AppData\Local\Temp\nsiF05A.tmp\System.dll

            Filesize

            11KB

            MD5

            c17103ae9072a06da581dec998343fc1

            SHA1

            b72148c6bdfaada8b8c3f950e610ee7cf1da1f8d

            SHA256

            dc58d8ad81cacb0c1ed72e33bff8f23ea40b5252b5bb55d393a0903e6819ae2f

            SHA512

            d32a71aaef18e993f28096d536e41c4d016850721b31171513ce28bbd805a54fd290b7c3e9d935f72e676a1acfb4f0dcc89d95040a0dd29f2b6975855c18986f

          • \Users\Admin\AppData\Local\Temp\nsiF05A.tmp\nsExec.dll

            Filesize

            6KB

            MD5

            acc2b699edfea5bf5aae45aba3a41e96

            SHA1

            d2accf4d494e43ceb2cff69abe4dd17147d29cc2

            SHA256

            168a974eaa3f588d759db3f47c1a9fdc3494ba1fa1a73a84e5e3b2a4d58abd7e

            SHA512

            e29ea10ada98c71a18273b04f44f385b120d4e8473e441ce5748cfa44a23648814f2656f429b85440157988c88de776c6ac008dc38bf09cbb746c230a46c69fe

          • \Users\Admin\AppData\Local\Temp\nsiF05A.tmp\nsExec.dll

            Filesize

            6KB

            MD5

            acc2b699edfea5bf5aae45aba3a41e96

            SHA1

            d2accf4d494e43ceb2cff69abe4dd17147d29cc2

            SHA256

            168a974eaa3f588d759db3f47c1a9fdc3494ba1fa1a73a84e5e3b2a4d58abd7e

            SHA512

            e29ea10ada98c71a18273b04f44f385b120d4e8473e441ce5748cfa44a23648814f2656f429b85440157988c88de776c6ac008dc38bf09cbb746c230a46c69fe

          • \Users\Admin\AppData\Local\Temp\nsiF05A.tmp\nsExec.dll

            Filesize

            6KB

            MD5

            acc2b699edfea5bf5aae45aba3a41e96

            SHA1

            d2accf4d494e43ceb2cff69abe4dd17147d29cc2

            SHA256

            168a974eaa3f588d759db3f47c1a9fdc3494ba1fa1a73a84e5e3b2a4d58abd7e

            SHA512

            e29ea10ada98c71a18273b04f44f385b120d4e8473e441ce5748cfa44a23648814f2656f429b85440157988c88de776c6ac008dc38bf09cbb746c230a46c69fe

          • \Users\Admin\AppData\Local\Temp\nsiF05A.tmp\nsExec.dll

            Filesize

            6KB

            MD5

            acc2b699edfea5bf5aae45aba3a41e96

            SHA1

            d2accf4d494e43ceb2cff69abe4dd17147d29cc2

            SHA256

            168a974eaa3f588d759db3f47c1a9fdc3494ba1fa1a73a84e5e3b2a4d58abd7e

            SHA512

            e29ea10ada98c71a18273b04f44f385b120d4e8473e441ce5748cfa44a23648814f2656f429b85440157988c88de776c6ac008dc38bf09cbb746c230a46c69fe

          • \Windows\SysWOW64\hfnapi.dll

            Filesize

            106KB

            MD5

            79767f61cc638c40e912c7a89a834e64

            SHA1

            12fabb7336b21b00bfba5a1a593aaa84846d2474

            SHA256

            302949fbf36cc647848960c7ea8278b183598f704a50052b09d683ff8e2c4c79

            SHA512

            7d75df4b0f5a969b9942f86f1151394b1e95a4c621df11acdc0394d43e2413d91fc41bab2bb4b901438c9b16a80d789d2be72cd0cd8f473a8be3267d7c243c61

          • \Windows\SysWOW64\hfnapi.dll

            Filesize

            106KB

            MD5

            79767f61cc638c40e912c7a89a834e64

            SHA1

            12fabb7336b21b00bfba5a1a593aaa84846d2474

            SHA256

            302949fbf36cc647848960c7ea8278b183598f704a50052b09d683ff8e2c4c79

            SHA512

            7d75df4b0f5a969b9942f86f1151394b1e95a4c621df11acdc0394d43e2413d91fc41bab2bb4b901438c9b16a80d789d2be72cd0cd8f473a8be3267d7c243c61

          • \Windows\SysWOW64\hfnapi.dll

            Filesize

            106KB

            MD5

            79767f61cc638c40e912c7a89a834e64

            SHA1

            12fabb7336b21b00bfba5a1a593aaa84846d2474

            SHA256

            302949fbf36cc647848960c7ea8278b183598f704a50052b09d683ff8e2c4c79

            SHA512

            7d75df4b0f5a969b9942f86f1151394b1e95a4c621df11acdc0394d43e2413d91fc41bab2bb4b901438c9b16a80d789d2be72cd0cd8f473a8be3267d7c243c61

          • \Windows\SysWOW64\hfpapi.dll

            Filesize

            241KB

            MD5

            65e3723188f20c2984c89c3b0083086b

            SHA1

            f99ef19e69654057358987f930ce059e60fd8f36

            SHA256

            5eb95962008121cc2f441897ba03bd682c8bf414e51f1b3dc9654b6eff4bcb86

            SHA512

            8c80d5efd39cbcdfa9b6102cf83ad30f1123872bd5aa19ca72d4a2e8d09b79e51f18bc3bc1d53e383b29445e4678d52245a3e9393834194235c2c8d7b3fd43c3

          • \Windows\SysWOW64\hfpapi.dll

            Filesize

            241KB

            MD5

            65e3723188f20c2984c89c3b0083086b

            SHA1

            f99ef19e69654057358987f930ce059e60fd8f36

            SHA256

            5eb95962008121cc2f441897ba03bd682c8bf414e51f1b3dc9654b6eff4bcb86

            SHA512

            8c80d5efd39cbcdfa9b6102cf83ad30f1123872bd5aa19ca72d4a2e8d09b79e51f18bc3bc1d53e383b29445e4678d52245a3e9393834194235c2c8d7b3fd43c3

          • \Windows\SysWOW64\installd.exe

            Filesize

            108KB

            MD5

            1aea85423100cb82c3f83f717c4872af

            SHA1

            bf63f66c4a88737db87c445ca3e1b8ce345e0da3

            SHA256

            a12ae94946ae1a13f0abccc4fdc29ac5c791a13fcf585603f5ce98cb40dcd6a0

            SHA512

            a99030f9b14d7e63a1c0a2589622710940c18113cd4aa8ac882e49b497530b21a01e0eb9ef0f33c79a1875068c465fe149162bb8f55b5d842cf190cac1de0132

          • \Windows\SysWOW64\nethtsrv.exe

            Filesize

            176KB

            MD5

            159ad773f34be82dd589ad11bf42d004

            SHA1

            cb3cfe974c343a39df65a65db3e93f0f92067d37

            SHA256

            3dfeac2424cf1bc8be2b4acab7ef3843b26e97265b714a3c01db0ed2a53aea6a

            SHA512

            fc06a558ce24d8c66096808122607b5c4ab38108edb5f6e95c1b91da5dc8441c6dad8bbdd9553d833baf8b2a616ab6c099e635f6bad9c26260fc35807a4438ba

          • \Windows\SysWOW64\netupdsrv.exe

            Filesize

            158KB

            MD5

            8792970d913ed21cb19a6037f9e79439

            SHA1

            1351316e30f47e6f94e39b0dbc8e0d11e4118562

            SHA256

            8ef9d547d833bb6a97ca07ac72b731353c30af1e496adf2648a01136d8527c2e

            SHA512

            8a526df5e8f3084f6f3fb655719b5eb8c158b98011ca4cca85d308ec34b43a9b2af33f41fac01e75aa85593271fb9f3980ead818ca8d51ab031a661f79199f93

          • memory/432-80-0x0000000000000000-mapping.dmp

          • memory/680-76-0x0000000000000000-mapping.dmp

          • memory/820-62-0x0000000000000000-mapping.dmp

          • memory/888-57-0x0000000000000000-mapping.dmp

          • memory/908-81-0x0000000000000000-mapping.dmp

          • memory/944-58-0x0000000000000000-mapping.dmp

          • memory/1436-64-0x0000000000000000-mapping.dmp

          • memory/1456-87-0x0000000000000000-mapping.dmp

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

          • memory/1760-54-0x0000000075281000-0x0000000075283000-memory.dmp

            Filesize

            8KB

          • memory/1760-59-0x0000000000360000-0x00000000007BE000-memory.dmp

            Filesize

            4.4MB

          • memory/1760-90-0x0000000000360000-0x00000000007BE000-memory.dmp

            Filesize

            4.4MB

          • memory/1784-70-0x0000000000000000-mapping.dmp

          • memory/1928-86-0x0000000000000000-mapping.dmp