Analysis

  • max time kernel
    48s
  • max time network
    31s
  • platform
    windows7_x64
  • resource
    win7-20221111-en
  • resource tags

    arch:x64arch:x86image:win7-20221111-enlocale:en-usos:windows7-x64system
  • submitted
    23-11-2022 10:25

General

  • Target

    5e4b37264aa9c865ca00136b4182276d458c151035cd8c2c103ce0f88bbff0cc.exe

  • Size

    601KB

  • MD5

    14b7905c2221a3560b81b4407ff7190a

  • SHA1

    2818f2c4093bfdd07810c0b08a3c96e9bb0d35c0

  • SHA256

    5e4b37264aa9c865ca00136b4182276d458c151035cd8c2c103ce0f88bbff0cc

  • SHA512

    ce7f95d170c1f93f6ab3fc6f12174d51a0c0923960826ccb784b30cc1dde9d4b7a5df480c5d80c89e00526eae3e1defb8945c4235df230e8d09bcfcf0475ab08

  • SSDEEP

    12288:hIny5DYT4R8a+l1u8fzQ3NcmwdmZkjpCKoEW0Zv3T:dUT4qabi1mZkjDoEWk

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\5e4b37264aa9c865ca00136b4182276d458c151035cd8c2c103ce0f88bbff0cc.exe
    "C:\Users\Admin\AppData\Local\Temp\5e4b37264aa9c865ca00136b4182276d458c151035cd8c2c103ce0f88bbff0cc.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:1312
    • C:\Windows\SysWOW64\net.exe
      net stop nethttpservice
      2⤵
      • Suspicious use of WriteProcessMemory
      PID:1576
      • C:\Windows\SysWOW64\net1.exe
        C:\Windows\system32\net1 stop nethttpservice
        3⤵
          PID:932
      • C:\Windows\SysWOW64\net.exe
        net stop serviceupdater
        2⤵
        • Suspicious use of WriteProcessMemory
        PID:276
        • C:\Windows\SysWOW64\net1.exe
          C:\Windows\system32\net1 stop serviceupdater
          3⤵
            PID:1072
        • C:\Windows\SysWOW64\installd.exe
          "C:\Windows\system32\installd.exe" nethfdrv
          2⤵
          • Executes dropped EXE
          • Loads dropped DLL
          PID:1112
        • C:\Windows\SysWOW64\nethtsrv.exe
          "C:\Windows\system32\nethtsrv.exe" -nfdi
          2⤵
          • Executes dropped EXE
          • Loads dropped DLL
          PID:1640
        • C:\Windows\SysWOW64\netupdsrv.exe
          "C:\Windows\system32\netupdsrv.exe" -nfdi
          2⤵
          • Executes dropped EXE
          PID:1552
        • C:\Windows\SysWOW64\net.exe
          net start nethttpservice
          2⤵
          • Suspicious use of WriteProcessMemory
          PID:1540
          • C:\Windows\SysWOW64\net1.exe
            C:\Windows\system32\net1 start nethttpservice
            3⤵
              PID:1380
          • C:\Windows\SysWOW64\net.exe
            net start serviceupdater
            2⤵
            • Suspicious use of WriteProcessMemory
            PID:1224
            • C:\Windows\SysWOW64\net1.exe
              C:\Windows\system32\net1 start serviceupdater
              3⤵
                PID:1956
          • C:\Windows\SysWOW64\nethtsrv.exe
            C:\Windows\SysWOW64\nethtsrv.exe
            1⤵
            • Executes dropped EXE
            • Loads dropped DLL
            • Suspicious use of AdjustPrivilegeToken
            PID:840
          • C:\Windows\SysWOW64\netupdsrv.exe
            C:\Windows\SysWOW64\netupdsrv.exe
            1⤵
            • Executes dropped EXE
            PID:1996

          Network

          MITRE ATT&CK Enterprise v6

          Replay Monitor

          Loading Replay Monitor...

          Downloads

          • C:\Windows\SysWOW64\hfnapi.dll

            Filesize

            106KB

            MD5

            704ca8e09c9b14ffa76471321a6ed405

            SHA1

            ed1bd9fe2ae9fcbe9dc55384c985a24e1f0254d2

            SHA256

            b976b696abbbd3a6702cf7c601e472f4a0392145e9a348a5a1fd870e0c369a48

            SHA512

            96ee5ca1ff9886ec3689fc1f61ab9c693af247774339d454c0e62bfd1bec03b434d0c7764b349e83682dd479afd88be9f7226cf564c53cd46950ccf4f53c58b3

          • C:\Windows\SysWOW64\hfpapi.dll

            Filesize

            241KB

            MD5

            5692f50cc1e2445b171dae93c8a50ad7

            SHA1

            73064ca5677abc7424fe41838fce76fbd36744fa

            SHA256

            ffc9c7be09f0a8d212e9e6eaed1d9431210cfc29429a184a0dc932b88aede637

            SHA512

            128e469e20fb293bee6f254c82fe0b03bad73dd22c67b37e724181de6cfe3d978ec635aeb0200a135e961b9bc49aba73e372e30f2f5803106050a4a2d96c7b43

          • C:\Windows\SysWOW64\installd.exe

            Filesize

            108KB

            MD5

            fc2535d99762fd2a46dab49e660cabaa

            SHA1

            318eb2acc75f92bd9d81c163d3eec8b58bc3f5e0

            SHA256

            4b9119f45db5d9a8f90e8e34e518e1a300ba15380d1b76056dc66f8b143bf3fa

            SHA512

            b87da3c23f84a06b9b1e1364a552b0ca9a75a4a3b4bb0c9fcff6da213df551492a96c953e94d6164eccbac831776a190f98ff39548f0c679bfd4d7e8c41e794f

          • C:\Windows\SysWOW64\nethtsrv.exe

            Filesize

            176KB

            MD5

            a370aafc63a6e98a8b7e6e6f1ba0045d

            SHA1

            3a02aa38fdaa8a75413b9c3ea242ad91be0817ed

            SHA256

            d509fe7bd60133f3d6553971068cca44cbc0a842a6db5c9306970cae5d6e6f62

            SHA512

            5c76b869c26facdc8788060014f05fa49fdad8ab0a29bea3febe2258c938f55dde05bd8b4c23b54257f0bd08c2959bf59397aaf99341e50acac367adfe8f8465

          • C:\Windows\SysWOW64\nethtsrv.exe

            Filesize

            176KB

            MD5

            a370aafc63a6e98a8b7e6e6f1ba0045d

            SHA1

            3a02aa38fdaa8a75413b9c3ea242ad91be0817ed

            SHA256

            d509fe7bd60133f3d6553971068cca44cbc0a842a6db5c9306970cae5d6e6f62

            SHA512

            5c76b869c26facdc8788060014f05fa49fdad8ab0a29bea3febe2258c938f55dde05bd8b4c23b54257f0bd08c2959bf59397aaf99341e50acac367adfe8f8465

          • C:\Windows\SysWOW64\netupdsrv.exe

            Filesize

            158KB

            MD5

            9dac647f14c1046c07216f61dbcfc409

            SHA1

            c933725d3de6abdf4a79b1410ff6e3b3a669f286

            SHA256

            0ef56a194ae9da26330a241f3a08085cc456e88af851ae886fb4478a9fe5060d

            SHA512

            f339b547facc5e5e8076fae2cb188d2dbaaf023af70b27a7399feb6f3975a300441445d57ded84baadd2f5e2c282a4c2ac6d817c1a4f21dd5d11a03162abfd72

          • C:\Windows\SysWOW64\netupdsrv.exe

            Filesize

            158KB

            MD5

            9dac647f14c1046c07216f61dbcfc409

            SHA1

            c933725d3de6abdf4a79b1410ff6e3b3a669f286

            SHA256

            0ef56a194ae9da26330a241f3a08085cc456e88af851ae886fb4478a9fe5060d

            SHA512

            f339b547facc5e5e8076fae2cb188d2dbaaf023af70b27a7399feb6f3975a300441445d57ded84baadd2f5e2c282a4c2ac6d817c1a4f21dd5d11a03162abfd72

          • \Users\Admin\AppData\Local\Temp\nstC4A9.tmp\System.dll

            Filesize

            11KB

            MD5

            c17103ae9072a06da581dec998343fc1

            SHA1

            b72148c6bdfaada8b8c3f950e610ee7cf1da1f8d

            SHA256

            dc58d8ad81cacb0c1ed72e33bff8f23ea40b5252b5bb55d393a0903e6819ae2f

            SHA512

            d32a71aaef18e993f28096d536e41c4d016850721b31171513ce28bbd805a54fd290b7c3e9d935f72e676a1acfb4f0dcc89d95040a0dd29f2b6975855c18986f

          • \Users\Admin\AppData\Local\Temp\nstC4A9.tmp\nsExec.dll

            Filesize

            6KB

            MD5

            acc2b699edfea5bf5aae45aba3a41e96

            SHA1

            d2accf4d494e43ceb2cff69abe4dd17147d29cc2

            SHA256

            168a974eaa3f588d759db3f47c1a9fdc3494ba1fa1a73a84e5e3b2a4d58abd7e

            SHA512

            e29ea10ada98c71a18273b04f44f385b120d4e8473e441ce5748cfa44a23648814f2656f429b85440157988c88de776c6ac008dc38bf09cbb746c230a46c69fe

          • \Users\Admin\AppData\Local\Temp\nstC4A9.tmp\nsExec.dll

            Filesize

            6KB

            MD5

            acc2b699edfea5bf5aae45aba3a41e96

            SHA1

            d2accf4d494e43ceb2cff69abe4dd17147d29cc2

            SHA256

            168a974eaa3f588d759db3f47c1a9fdc3494ba1fa1a73a84e5e3b2a4d58abd7e

            SHA512

            e29ea10ada98c71a18273b04f44f385b120d4e8473e441ce5748cfa44a23648814f2656f429b85440157988c88de776c6ac008dc38bf09cbb746c230a46c69fe

          • \Users\Admin\AppData\Local\Temp\nstC4A9.tmp\nsExec.dll

            Filesize

            6KB

            MD5

            acc2b699edfea5bf5aae45aba3a41e96

            SHA1

            d2accf4d494e43ceb2cff69abe4dd17147d29cc2

            SHA256

            168a974eaa3f588d759db3f47c1a9fdc3494ba1fa1a73a84e5e3b2a4d58abd7e

            SHA512

            e29ea10ada98c71a18273b04f44f385b120d4e8473e441ce5748cfa44a23648814f2656f429b85440157988c88de776c6ac008dc38bf09cbb746c230a46c69fe

          • \Users\Admin\AppData\Local\Temp\nstC4A9.tmp\nsExec.dll

            Filesize

            6KB

            MD5

            acc2b699edfea5bf5aae45aba3a41e96

            SHA1

            d2accf4d494e43ceb2cff69abe4dd17147d29cc2

            SHA256

            168a974eaa3f588d759db3f47c1a9fdc3494ba1fa1a73a84e5e3b2a4d58abd7e

            SHA512

            e29ea10ada98c71a18273b04f44f385b120d4e8473e441ce5748cfa44a23648814f2656f429b85440157988c88de776c6ac008dc38bf09cbb746c230a46c69fe

          • \Windows\SysWOW64\hfnapi.dll

            Filesize

            106KB

            MD5

            704ca8e09c9b14ffa76471321a6ed405

            SHA1

            ed1bd9fe2ae9fcbe9dc55384c985a24e1f0254d2

            SHA256

            b976b696abbbd3a6702cf7c601e472f4a0392145e9a348a5a1fd870e0c369a48

            SHA512

            96ee5ca1ff9886ec3689fc1f61ab9c693af247774339d454c0e62bfd1bec03b434d0c7764b349e83682dd479afd88be9f7226cf564c53cd46950ccf4f53c58b3

          • \Windows\SysWOW64\hfnapi.dll

            Filesize

            106KB

            MD5

            704ca8e09c9b14ffa76471321a6ed405

            SHA1

            ed1bd9fe2ae9fcbe9dc55384c985a24e1f0254d2

            SHA256

            b976b696abbbd3a6702cf7c601e472f4a0392145e9a348a5a1fd870e0c369a48

            SHA512

            96ee5ca1ff9886ec3689fc1f61ab9c693af247774339d454c0e62bfd1bec03b434d0c7764b349e83682dd479afd88be9f7226cf564c53cd46950ccf4f53c58b3

          • \Windows\SysWOW64\hfnapi.dll

            Filesize

            106KB

            MD5

            704ca8e09c9b14ffa76471321a6ed405

            SHA1

            ed1bd9fe2ae9fcbe9dc55384c985a24e1f0254d2

            SHA256

            b976b696abbbd3a6702cf7c601e472f4a0392145e9a348a5a1fd870e0c369a48

            SHA512

            96ee5ca1ff9886ec3689fc1f61ab9c693af247774339d454c0e62bfd1bec03b434d0c7764b349e83682dd479afd88be9f7226cf564c53cd46950ccf4f53c58b3

          • \Windows\SysWOW64\hfpapi.dll

            Filesize

            241KB

            MD5

            5692f50cc1e2445b171dae93c8a50ad7

            SHA1

            73064ca5677abc7424fe41838fce76fbd36744fa

            SHA256

            ffc9c7be09f0a8d212e9e6eaed1d9431210cfc29429a184a0dc932b88aede637

            SHA512

            128e469e20fb293bee6f254c82fe0b03bad73dd22c67b37e724181de6cfe3d978ec635aeb0200a135e961b9bc49aba73e372e30f2f5803106050a4a2d96c7b43

          • \Windows\SysWOW64\hfpapi.dll

            Filesize

            241KB

            MD5

            5692f50cc1e2445b171dae93c8a50ad7

            SHA1

            73064ca5677abc7424fe41838fce76fbd36744fa

            SHA256

            ffc9c7be09f0a8d212e9e6eaed1d9431210cfc29429a184a0dc932b88aede637

            SHA512

            128e469e20fb293bee6f254c82fe0b03bad73dd22c67b37e724181de6cfe3d978ec635aeb0200a135e961b9bc49aba73e372e30f2f5803106050a4a2d96c7b43

          • \Windows\SysWOW64\installd.exe

            Filesize

            108KB

            MD5

            fc2535d99762fd2a46dab49e660cabaa

            SHA1

            318eb2acc75f92bd9d81c163d3eec8b58bc3f5e0

            SHA256

            4b9119f45db5d9a8f90e8e34e518e1a300ba15380d1b76056dc66f8b143bf3fa

            SHA512

            b87da3c23f84a06b9b1e1364a552b0ca9a75a4a3b4bb0c9fcff6da213df551492a96c953e94d6164eccbac831776a190f98ff39548f0c679bfd4d7e8c41e794f

          • \Windows\SysWOW64\nethtsrv.exe

            Filesize

            176KB

            MD5

            a370aafc63a6e98a8b7e6e6f1ba0045d

            SHA1

            3a02aa38fdaa8a75413b9c3ea242ad91be0817ed

            SHA256

            d509fe7bd60133f3d6553971068cca44cbc0a842a6db5c9306970cae5d6e6f62

            SHA512

            5c76b869c26facdc8788060014f05fa49fdad8ab0a29bea3febe2258c938f55dde05bd8b4c23b54257f0bd08c2959bf59397aaf99341e50acac367adfe8f8465

          • \Windows\SysWOW64\netupdsrv.exe

            Filesize

            158KB

            MD5

            9dac647f14c1046c07216f61dbcfc409

            SHA1

            c933725d3de6abdf4a79b1410ff6e3b3a669f286

            SHA256

            0ef56a194ae9da26330a241f3a08085cc456e88af851ae886fb4478a9fe5060d

            SHA512

            f339b547facc5e5e8076fae2cb188d2dbaaf023af70b27a7399feb6f3975a300441445d57ded84baadd2f5e2c282a4c2ac6d817c1a4f21dd5d11a03162abfd72

          • memory/276-61-0x0000000000000000-mapping.dmp

          • memory/932-59-0x0000000000000000-mapping.dmp

          • memory/1072-62-0x0000000000000000-mapping.dmp

          • memory/1112-64-0x0000000000000000-mapping.dmp

          • memory/1224-87-0x0000000000000000-mapping.dmp

          • memory/1312-69-0x0000000000360000-0x00000000007BE000-memory.dmp

            Filesize

            4.4MB

          • memory/1312-54-0x0000000075BA1000-0x0000000075BA3000-memory.dmp

            Filesize

            8KB

          • memory/1312-58-0x0000000000360000-0x00000000007BE000-memory.dmp

            Filesize

            4.4MB

          • memory/1312-90-0x0000000000360000-0x00000000007BE000-memory.dmp

            Filesize

            4.4MB

          • memory/1380-82-0x0000000000000000-mapping.dmp

          • memory/1540-81-0x0000000000000000-mapping.dmp

          • memory/1552-77-0x0000000000000000-mapping.dmp

          • memory/1576-57-0x0000000000000000-mapping.dmp

          • memory/1640-71-0x0000000000000000-mapping.dmp

          • memory/1956-88-0x0000000000000000-mapping.dmp