Analysis

  • max time kernel
    24s
  • max time network
    31s
  • platform
    windows7_x64
  • resource
    win7-20221111-en
  • resource tags

    arch:x64arch:x86image:win7-20221111-enlocale:en-usos:windows7-x64system
  • submitted
    22-11-2022 00:29

General

  • Target

    5f68ee43cc6b6bf82f1664bfec81e803bb064dcfda71062e9c71f5703fef3994.exe

  • Size

    445KB

  • MD5

    80e2b39f5502a4542418cb117378528b

  • SHA1

    efcd028cf76b63b5418f2cb2462e612594f1afc7

  • SHA256

    5f68ee43cc6b6bf82f1664bfec81e803bb064dcfda71062e9c71f5703fef3994

  • SHA512

    29d2f1fd093eddc658635082f81e33861348aa47202baa295d6420289b11f1496c638e40d68a6ba0ce5efc1803b4b2a697268c2db0b80d018ea62580671f5e99

  • SSDEEP

    12288:dGOR8aqUZfv5WcCJ6CME2zUlUzI/px8GQSn57kl:dEaqCf8JlMzolgYx8G75G

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\5f68ee43cc6b6bf82f1664bfec81e803bb064dcfda71062e9c71f5703fef3994.exe
    "C:\Users\Admin\AppData\Local\Temp\5f68ee43cc6b6bf82f1664bfec81e803bb064dcfda71062e9c71f5703fef3994.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:1704
    • C:\Windows\SysWOW64\net.exe
      net stop nethttpservice
      2⤵
      • Suspicious use of WriteProcessMemory
      PID:1772
      • C:\Windows\SysWOW64\net1.exe
        C:\Windows\system32\net1 stop nethttpservice
        3⤵
          PID:1004
      • C:\Windows\SysWOW64\net.exe
        net stop serviceupdater
        2⤵
        • Suspicious use of WriteProcessMemory
        PID:1064
        • C:\Windows\SysWOW64\net1.exe
          C:\Windows\system32\net1 stop serviceupdater
          3⤵
            PID:580
        • C:\Windows\SysWOW64\installd.exe
          "C:\Windows\system32\installd.exe" nethfdrv
          2⤵
          • Executes dropped EXE
          • Loads dropped DLL
          PID:668
        • C:\Windows\SysWOW64\nethtsrv.exe
          "C:\Windows\system32\nethtsrv.exe" -nfdi
          2⤵
          • Executes dropped EXE
          • Loads dropped DLL
          PID:560
        • C:\Windows\SysWOW64\netupdsrv.exe
          "C:\Windows\system32\netupdsrv.exe" -nfdi
          2⤵
          • Executes dropped EXE
          PID:1836
        • C:\Windows\SysWOW64\net.exe
          net start nethttpservice
          2⤵
          • Suspicious use of WriteProcessMemory
          PID:828
          • C:\Windows\SysWOW64\net1.exe
            C:\Windows\system32\net1 start nethttpservice
            3⤵
              PID:1912
          • C:\Windows\SysWOW64\net.exe
            net start serviceupdater
            2⤵
            • Suspicious use of WriteProcessMemory
            PID:240
            • C:\Windows\SysWOW64\net1.exe
              C:\Windows\system32\net1 start serviceupdater
              3⤵
                PID:340
          • C:\Windows\SysWOW64\nethtsrv.exe
            C:\Windows\SysWOW64\nethtsrv.exe
            1⤵
            • Executes dropped EXE
            • Loads dropped DLL
            • Suspicious use of AdjustPrivilegeToken
            PID:1748
          • C:\Windows\SysWOW64\netupdsrv.exe
            C:\Windows\SysWOW64\netupdsrv.exe
            1⤵
            • Executes dropped EXE
            PID:2032

          Network

          MITRE ATT&CK Enterprise v6

          Replay Monitor

          Loading Replay Monitor...

          Downloads

          • C:\Windows\SysWOW64\hfnapi.dll

            Filesize

            106KB

            MD5

            8997ea157d1190688fa396e24bab5364

            SHA1

            f2f604326a564874d8ac3f2d0d494be84a19eea0

            SHA256

            55b4ffa8279c31fed3c26fc9c77431f3d2f192e2579e052001c5c227bdd6de2e

            SHA512

            d5ecb8a367b45449c62a0b0ba9fa1b5740de317183bd2f31a7f890078832293d7b670a83ffb0ded5e9ac5176d52d8b6f4835fdc8937a6770059f9a4c80a775f6

          • C:\Windows\SysWOW64\hfpapi.dll

            Filesize

            241KB

            MD5

            dd14ef805a5a54a13e67ec2b10027739

            SHA1

            e69c4c1c87787380d88dd838bc4ef6f4c798962d

            SHA256

            70615a19d040ed675c96ca9419419b78afc3ac9ddd73810a5d7220d56019e778

            SHA512

            d7e11b6b8750c9c68f5516473b3cba1d4aacbf621dd07acf81587406265ff367159b5c76c87afb1a8bca981a5730938cb3214e31a4a63e5a50a7861437108f33

          • C:\Windows\SysWOW64\installd.exe

            Filesize

            108KB

            MD5

            182491729546b684844b00633fabe160

            SHA1

            f581ff137af3631eecf2a4ef70aae50b5e2a81e6

            SHA256

            dba5df58e787dbc450aa7e8ff7e3fd42a467984c69fd32450bb672d5df25be2b

            SHA512

            7a128d00ff56336a544747986963a11271cb7b131ca014506a560b695675e20b532899ade3be4eb778265dc7905ff4f965494ce3d1c376c57f3061a33bb34c2c

          • C:\Windows\SysWOW64\nethtsrv.exe

            Filesize

            176KB

            MD5

            d8497a66685319bb11fb0ce5a1e17f71

            SHA1

            228668753153fa2f6386af2f66efaaed6358812f

            SHA256

            5f54fc6c61999e30ef3e08ec1a6a81e366b21b22b64e9e0e2e7034ea23918148

            SHA512

            d3b090e96481b626481d6cd6ba904f1b9054b5ae761e74463699bb85200e62c109aa975d46d731fde9ee7b5c3a1f4abc206c39a06835f26f036219b8cb2f45fc

          • C:\Windows\SysWOW64\nethtsrv.exe

            Filesize

            176KB

            MD5

            d8497a66685319bb11fb0ce5a1e17f71

            SHA1

            228668753153fa2f6386af2f66efaaed6358812f

            SHA256

            5f54fc6c61999e30ef3e08ec1a6a81e366b21b22b64e9e0e2e7034ea23918148

            SHA512

            d3b090e96481b626481d6cd6ba904f1b9054b5ae761e74463699bb85200e62c109aa975d46d731fde9ee7b5c3a1f4abc206c39a06835f26f036219b8cb2f45fc

          • C:\Windows\SysWOW64\netupdsrv.exe

            Filesize

            158KB

            MD5

            57779aed22d1fd9b73f8db6091a8d3c1

            SHA1

            5b7c0b8cb7ef9d361199c07caa73c34a1bbe9fb3

            SHA256

            4f5daee2cfdec417b73b69cf7e093ef1e440e5b4c7ee761ea83babcc4dba42d7

            SHA512

            c276df876fe34e1f809bd823fa8df4660072714f2ee63e535f495e28bdc45acbbde054d1fc580de2a62c6544ae2b89b4e568eee76428cefef624ebdd34b30ece

          • C:\Windows\SysWOW64\netupdsrv.exe

            Filesize

            158KB

            MD5

            57779aed22d1fd9b73f8db6091a8d3c1

            SHA1

            5b7c0b8cb7ef9d361199c07caa73c34a1bbe9fb3

            SHA256

            4f5daee2cfdec417b73b69cf7e093ef1e440e5b4c7ee761ea83babcc4dba42d7

            SHA512

            c276df876fe34e1f809bd823fa8df4660072714f2ee63e535f495e28bdc45acbbde054d1fc580de2a62c6544ae2b89b4e568eee76428cefef624ebdd34b30ece

          • \Users\Admin\AppData\Local\Temp\nsy27DE.tmp\System.dll

            Filesize

            11KB

            MD5

            c17103ae9072a06da581dec998343fc1

            SHA1

            b72148c6bdfaada8b8c3f950e610ee7cf1da1f8d

            SHA256

            dc58d8ad81cacb0c1ed72e33bff8f23ea40b5252b5bb55d393a0903e6819ae2f

            SHA512

            d32a71aaef18e993f28096d536e41c4d016850721b31171513ce28bbd805a54fd290b7c3e9d935f72e676a1acfb4f0dcc89d95040a0dd29f2b6975855c18986f

          • \Users\Admin\AppData\Local\Temp\nsy27DE.tmp\nsExec.dll

            Filesize

            6KB

            MD5

            acc2b699edfea5bf5aae45aba3a41e96

            SHA1

            d2accf4d494e43ceb2cff69abe4dd17147d29cc2

            SHA256

            168a974eaa3f588d759db3f47c1a9fdc3494ba1fa1a73a84e5e3b2a4d58abd7e

            SHA512

            e29ea10ada98c71a18273b04f44f385b120d4e8473e441ce5748cfa44a23648814f2656f429b85440157988c88de776c6ac008dc38bf09cbb746c230a46c69fe

          • \Users\Admin\AppData\Local\Temp\nsy27DE.tmp\nsExec.dll

            Filesize

            6KB

            MD5

            acc2b699edfea5bf5aae45aba3a41e96

            SHA1

            d2accf4d494e43ceb2cff69abe4dd17147d29cc2

            SHA256

            168a974eaa3f588d759db3f47c1a9fdc3494ba1fa1a73a84e5e3b2a4d58abd7e

            SHA512

            e29ea10ada98c71a18273b04f44f385b120d4e8473e441ce5748cfa44a23648814f2656f429b85440157988c88de776c6ac008dc38bf09cbb746c230a46c69fe

          • \Users\Admin\AppData\Local\Temp\nsy27DE.tmp\nsExec.dll

            Filesize

            6KB

            MD5

            acc2b699edfea5bf5aae45aba3a41e96

            SHA1

            d2accf4d494e43ceb2cff69abe4dd17147d29cc2

            SHA256

            168a974eaa3f588d759db3f47c1a9fdc3494ba1fa1a73a84e5e3b2a4d58abd7e

            SHA512

            e29ea10ada98c71a18273b04f44f385b120d4e8473e441ce5748cfa44a23648814f2656f429b85440157988c88de776c6ac008dc38bf09cbb746c230a46c69fe

          • \Users\Admin\AppData\Local\Temp\nsy27DE.tmp\nsExec.dll

            Filesize

            6KB

            MD5

            acc2b699edfea5bf5aae45aba3a41e96

            SHA1

            d2accf4d494e43ceb2cff69abe4dd17147d29cc2

            SHA256

            168a974eaa3f588d759db3f47c1a9fdc3494ba1fa1a73a84e5e3b2a4d58abd7e

            SHA512

            e29ea10ada98c71a18273b04f44f385b120d4e8473e441ce5748cfa44a23648814f2656f429b85440157988c88de776c6ac008dc38bf09cbb746c230a46c69fe

          • \Windows\SysWOW64\hfnapi.dll

            Filesize

            106KB

            MD5

            8997ea157d1190688fa396e24bab5364

            SHA1

            f2f604326a564874d8ac3f2d0d494be84a19eea0

            SHA256

            55b4ffa8279c31fed3c26fc9c77431f3d2f192e2579e052001c5c227bdd6de2e

            SHA512

            d5ecb8a367b45449c62a0b0ba9fa1b5740de317183bd2f31a7f890078832293d7b670a83ffb0ded5e9ac5176d52d8b6f4835fdc8937a6770059f9a4c80a775f6

          • \Windows\SysWOW64\hfnapi.dll

            Filesize

            106KB

            MD5

            8997ea157d1190688fa396e24bab5364

            SHA1

            f2f604326a564874d8ac3f2d0d494be84a19eea0

            SHA256

            55b4ffa8279c31fed3c26fc9c77431f3d2f192e2579e052001c5c227bdd6de2e

            SHA512

            d5ecb8a367b45449c62a0b0ba9fa1b5740de317183bd2f31a7f890078832293d7b670a83ffb0ded5e9ac5176d52d8b6f4835fdc8937a6770059f9a4c80a775f6

          • \Windows\SysWOW64\hfnapi.dll

            Filesize

            106KB

            MD5

            8997ea157d1190688fa396e24bab5364

            SHA1

            f2f604326a564874d8ac3f2d0d494be84a19eea0

            SHA256

            55b4ffa8279c31fed3c26fc9c77431f3d2f192e2579e052001c5c227bdd6de2e

            SHA512

            d5ecb8a367b45449c62a0b0ba9fa1b5740de317183bd2f31a7f890078832293d7b670a83ffb0ded5e9ac5176d52d8b6f4835fdc8937a6770059f9a4c80a775f6

          • \Windows\SysWOW64\hfpapi.dll

            Filesize

            241KB

            MD5

            dd14ef805a5a54a13e67ec2b10027739

            SHA1

            e69c4c1c87787380d88dd838bc4ef6f4c798962d

            SHA256

            70615a19d040ed675c96ca9419419b78afc3ac9ddd73810a5d7220d56019e778

            SHA512

            d7e11b6b8750c9c68f5516473b3cba1d4aacbf621dd07acf81587406265ff367159b5c76c87afb1a8bca981a5730938cb3214e31a4a63e5a50a7861437108f33

          • \Windows\SysWOW64\hfpapi.dll

            Filesize

            241KB

            MD5

            dd14ef805a5a54a13e67ec2b10027739

            SHA1

            e69c4c1c87787380d88dd838bc4ef6f4c798962d

            SHA256

            70615a19d040ed675c96ca9419419b78afc3ac9ddd73810a5d7220d56019e778

            SHA512

            d7e11b6b8750c9c68f5516473b3cba1d4aacbf621dd07acf81587406265ff367159b5c76c87afb1a8bca981a5730938cb3214e31a4a63e5a50a7861437108f33

          • \Windows\SysWOW64\installd.exe

            Filesize

            108KB

            MD5

            182491729546b684844b00633fabe160

            SHA1

            f581ff137af3631eecf2a4ef70aae50b5e2a81e6

            SHA256

            dba5df58e787dbc450aa7e8ff7e3fd42a467984c69fd32450bb672d5df25be2b

            SHA512

            7a128d00ff56336a544747986963a11271cb7b131ca014506a560b695675e20b532899ade3be4eb778265dc7905ff4f965494ce3d1c376c57f3061a33bb34c2c

          • \Windows\SysWOW64\nethtsrv.exe

            Filesize

            176KB

            MD5

            d8497a66685319bb11fb0ce5a1e17f71

            SHA1

            228668753153fa2f6386af2f66efaaed6358812f

            SHA256

            5f54fc6c61999e30ef3e08ec1a6a81e366b21b22b64e9e0e2e7034ea23918148

            SHA512

            d3b090e96481b626481d6cd6ba904f1b9054b5ae761e74463699bb85200e62c109aa975d46d731fde9ee7b5c3a1f4abc206c39a06835f26f036219b8cb2f45fc

          • \Windows\SysWOW64\netupdsrv.exe

            Filesize

            158KB

            MD5

            57779aed22d1fd9b73f8db6091a8d3c1

            SHA1

            5b7c0b8cb7ef9d361199c07caa73c34a1bbe9fb3

            SHA256

            4f5daee2cfdec417b73b69cf7e093ef1e440e5b4c7ee761ea83babcc4dba42d7

            SHA512

            c276df876fe34e1f809bd823fa8df4660072714f2ee63e535f495e28bdc45acbbde054d1fc580de2a62c6544ae2b89b4e568eee76428cefef624ebdd34b30ece

          • memory/1704-54-0x00000000766F1000-0x00000000766F3000-memory.dmp

            Filesize

            8KB