Analysis

  • max time kernel
    149s
  • max time network
    152s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20220812-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20220812-enlocale:en-usos:windows10-2004-x64system
  • submitted
    22/11/2022, 00:03

General

  • Target

    548d9da7b2e4d2391898053554c9050218cefcf573faf9247a7853d9911fc6b1.exe

  • Size

    602KB

  • MD5

    84714c4546b931496f545646fbec8a1d

  • SHA1

    05c4bb214a9387263711f8043eb24477fe0b6c12

  • SHA256

    548d9da7b2e4d2391898053554c9050218cefcf573faf9247a7853d9911fc6b1

  • SHA512

    8d7d64abfdb9fd88a186f763a72c39f800021f299012e9338c1b30f23a3707cf92cdc0d01f83efba2444ce67c26db79f62a062de071c3bc9f236895294f0dec0

  • SSDEEP

    12288:qIny5DYTgfzViJ9GoP0dUeZ41MYlhRl2+wBxAYuGZKGxcjWw+DQV6uF:sUTgbVCrPY2Rl7lLsxAYuaKGOja8VX

Score
8/10

Malware Config

Signatures

  • Drops file in Drivers directory 1 IoCs
  • Executes dropped EXE 5 IoCs
  • Loads dropped DLL 14 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.

  • Modifies data under HKEY_USERS 1 IoCs
  • Runs net.exe
  • Suspicious behavior: LoadsDriver 1 IoCs
  • Suspicious use of AdjustPrivilegeToken 1 IoCs
  • Suspicious use of WriteProcessMemory 33 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\548d9da7b2e4d2391898053554c9050218cefcf573faf9247a7853d9911fc6b1.exe
    "C:\Users\Admin\AppData\Local\Temp\548d9da7b2e4d2391898053554c9050218cefcf573faf9247a7853d9911fc6b1.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:448
    • C:\Windows\SysWOW64\net.exe
      net stop nethttpservice
      2⤵
      • Suspicious use of WriteProcessMemory
      PID:4372
      • C:\Windows\SysWOW64\net1.exe
        C:\Windows\system32\net1 stop nethttpservice
        3⤵
          PID:4412
      • C:\Windows\SysWOW64\net.exe
        net stop serviceupdater
        2⤵
        • Suspicious use of WriteProcessMemory
        PID:4508
        • C:\Windows\SysWOW64\net1.exe
          C:\Windows\system32\net1 stop serviceupdater
          3⤵
            PID:4680
        • C:\Windows\SysWOW64\installd.exe
          "C:\Windows\system32\installd.exe" nethfdrv
          2⤵
          • Executes dropped EXE
          • Loads dropped DLL
          PID:4580
        • C:\Windows\SysWOW64\nethtsrv.exe
          "C:\Windows\system32\nethtsrv.exe" -nfdi
          2⤵
          • Executes dropped EXE
          • Loads dropped DLL
          PID:2804
        • C:\Windows\SysWOW64\netupdsrv.exe
          "C:\Windows\system32\netupdsrv.exe" -nfdi
          2⤵
          • Executes dropped EXE
          PID:3348
        • C:\Windows\SysWOW64\net.exe
          net start nethttpservice
          2⤵
          • Suspicious use of WriteProcessMemory
          PID:4300
          • C:\Windows\SysWOW64\net1.exe
            C:\Windows\system32\net1 start nethttpservice
            3⤵
              PID:452
          • C:\Windows\SysWOW64\net.exe
            net start serviceupdater
            2⤵
            • Suspicious use of WriteProcessMemory
            PID:260
            • C:\Windows\SysWOW64\net1.exe
              C:\Windows\system32\net1 start serviceupdater
              3⤵
                PID:2304
          • C:\Windows\SysWOW64\nethtsrv.exe
            C:\Windows\SysWOW64\nethtsrv.exe
            1⤵
            • Executes dropped EXE
            • Loads dropped DLL
            • Modifies data under HKEY_USERS
            • Suspicious use of AdjustPrivilegeToken
            PID:3200
          • C:\Windows\SysWOW64\netupdsrv.exe
            C:\Windows\SysWOW64\netupdsrv.exe
            1⤵
            • Executes dropped EXE
            PID:780

          Network

          MITRE ATT&CK Enterprise v6

          Replay Monitor

          Loading Replay Monitor...

          Downloads

          • C:\Users\Admin\AppData\Local\Temp\nsj866D.tmp\System.dll

            Filesize

            11KB

            MD5

            c17103ae9072a06da581dec998343fc1

            SHA1

            b72148c6bdfaada8b8c3f950e610ee7cf1da1f8d

            SHA256

            dc58d8ad81cacb0c1ed72e33bff8f23ea40b5252b5bb55d393a0903e6819ae2f

            SHA512

            d32a71aaef18e993f28096d536e41c4d016850721b31171513ce28bbd805a54fd290b7c3e9d935f72e676a1acfb4f0dcc89d95040a0dd29f2b6975855c18986f

          • C:\Users\Admin\AppData\Local\Temp\nsj866D.tmp\nsExec.dll

            Filesize

            6KB

            MD5

            acc2b699edfea5bf5aae45aba3a41e96

            SHA1

            d2accf4d494e43ceb2cff69abe4dd17147d29cc2

            SHA256

            168a974eaa3f588d759db3f47c1a9fdc3494ba1fa1a73a84e5e3b2a4d58abd7e

            SHA512

            e29ea10ada98c71a18273b04f44f385b120d4e8473e441ce5748cfa44a23648814f2656f429b85440157988c88de776c6ac008dc38bf09cbb746c230a46c69fe

          • C:\Users\Admin\AppData\Local\Temp\nsj866D.tmp\nsExec.dll

            Filesize

            6KB

            MD5

            acc2b699edfea5bf5aae45aba3a41e96

            SHA1

            d2accf4d494e43ceb2cff69abe4dd17147d29cc2

            SHA256

            168a974eaa3f588d759db3f47c1a9fdc3494ba1fa1a73a84e5e3b2a4d58abd7e

            SHA512

            e29ea10ada98c71a18273b04f44f385b120d4e8473e441ce5748cfa44a23648814f2656f429b85440157988c88de776c6ac008dc38bf09cbb746c230a46c69fe

          • C:\Users\Admin\AppData\Local\Temp\nsj866D.tmp\nsExec.dll

            Filesize

            6KB

            MD5

            acc2b699edfea5bf5aae45aba3a41e96

            SHA1

            d2accf4d494e43ceb2cff69abe4dd17147d29cc2

            SHA256

            168a974eaa3f588d759db3f47c1a9fdc3494ba1fa1a73a84e5e3b2a4d58abd7e

            SHA512

            e29ea10ada98c71a18273b04f44f385b120d4e8473e441ce5748cfa44a23648814f2656f429b85440157988c88de776c6ac008dc38bf09cbb746c230a46c69fe

          • C:\Users\Admin\AppData\Local\Temp\nsj866D.tmp\nsExec.dll

            Filesize

            6KB

            MD5

            acc2b699edfea5bf5aae45aba3a41e96

            SHA1

            d2accf4d494e43ceb2cff69abe4dd17147d29cc2

            SHA256

            168a974eaa3f588d759db3f47c1a9fdc3494ba1fa1a73a84e5e3b2a4d58abd7e

            SHA512

            e29ea10ada98c71a18273b04f44f385b120d4e8473e441ce5748cfa44a23648814f2656f429b85440157988c88de776c6ac008dc38bf09cbb746c230a46c69fe

          • C:\Users\Admin\AppData\Local\Temp\nsj866D.tmp\nsExec.dll

            Filesize

            6KB

            MD5

            acc2b699edfea5bf5aae45aba3a41e96

            SHA1

            d2accf4d494e43ceb2cff69abe4dd17147d29cc2

            SHA256

            168a974eaa3f588d759db3f47c1a9fdc3494ba1fa1a73a84e5e3b2a4d58abd7e

            SHA512

            e29ea10ada98c71a18273b04f44f385b120d4e8473e441ce5748cfa44a23648814f2656f429b85440157988c88de776c6ac008dc38bf09cbb746c230a46c69fe

          • C:\Users\Admin\AppData\Local\Temp\nsj866D.tmp\nsExec.dll

            Filesize

            6KB

            MD5

            acc2b699edfea5bf5aae45aba3a41e96

            SHA1

            d2accf4d494e43ceb2cff69abe4dd17147d29cc2

            SHA256

            168a974eaa3f588d759db3f47c1a9fdc3494ba1fa1a73a84e5e3b2a4d58abd7e

            SHA512

            e29ea10ada98c71a18273b04f44f385b120d4e8473e441ce5748cfa44a23648814f2656f429b85440157988c88de776c6ac008dc38bf09cbb746c230a46c69fe

          • C:\Users\Admin\AppData\Local\Temp\nsj866D.tmp\nsExec.dll

            Filesize

            6KB

            MD5

            acc2b699edfea5bf5aae45aba3a41e96

            SHA1

            d2accf4d494e43ceb2cff69abe4dd17147d29cc2

            SHA256

            168a974eaa3f588d759db3f47c1a9fdc3494ba1fa1a73a84e5e3b2a4d58abd7e

            SHA512

            e29ea10ada98c71a18273b04f44f385b120d4e8473e441ce5748cfa44a23648814f2656f429b85440157988c88de776c6ac008dc38bf09cbb746c230a46c69fe

          • C:\Users\Admin\AppData\Local\Temp\nsj866D.tmp\nsExec.dll

            Filesize

            6KB

            MD5

            acc2b699edfea5bf5aae45aba3a41e96

            SHA1

            d2accf4d494e43ceb2cff69abe4dd17147d29cc2

            SHA256

            168a974eaa3f588d759db3f47c1a9fdc3494ba1fa1a73a84e5e3b2a4d58abd7e

            SHA512

            e29ea10ada98c71a18273b04f44f385b120d4e8473e441ce5748cfa44a23648814f2656f429b85440157988c88de776c6ac008dc38bf09cbb746c230a46c69fe

          • C:\Windows\SysWOW64\hfnapi.dll

            Filesize

            106KB

            MD5

            ab2b8e42e15b2bf3b5e0b9fdb437afa7

            SHA1

            e41980dea5ee12cce4f6464fd4342bd43a97943c

            SHA256

            96e8b7c6f375f055f596f2f2ccd3de11825b27d546256779b17b73ee71ced036

            SHA512

            180dc92a4d901b12090e13e065f7ce74cd7a294d52f521b55da722bc9b15cc65e5186124445893026e7ad0eb7c248de59c85392ba7422722933daeb286dc7b6d

          • C:\Windows\SysWOW64\hfnapi.dll

            Filesize

            106KB

            MD5

            ab2b8e42e15b2bf3b5e0b9fdb437afa7

            SHA1

            e41980dea5ee12cce4f6464fd4342bd43a97943c

            SHA256

            96e8b7c6f375f055f596f2f2ccd3de11825b27d546256779b17b73ee71ced036

            SHA512

            180dc92a4d901b12090e13e065f7ce74cd7a294d52f521b55da722bc9b15cc65e5186124445893026e7ad0eb7c248de59c85392ba7422722933daeb286dc7b6d

          • C:\Windows\SysWOW64\hfnapi.dll

            Filesize

            106KB

            MD5

            ab2b8e42e15b2bf3b5e0b9fdb437afa7

            SHA1

            e41980dea5ee12cce4f6464fd4342bd43a97943c

            SHA256

            96e8b7c6f375f055f596f2f2ccd3de11825b27d546256779b17b73ee71ced036

            SHA512

            180dc92a4d901b12090e13e065f7ce74cd7a294d52f521b55da722bc9b15cc65e5186124445893026e7ad0eb7c248de59c85392ba7422722933daeb286dc7b6d

          • C:\Windows\SysWOW64\hfnapi.dll

            Filesize

            106KB

            MD5

            ab2b8e42e15b2bf3b5e0b9fdb437afa7

            SHA1

            e41980dea5ee12cce4f6464fd4342bd43a97943c

            SHA256

            96e8b7c6f375f055f596f2f2ccd3de11825b27d546256779b17b73ee71ced036

            SHA512

            180dc92a4d901b12090e13e065f7ce74cd7a294d52f521b55da722bc9b15cc65e5186124445893026e7ad0eb7c248de59c85392ba7422722933daeb286dc7b6d

          • C:\Windows\SysWOW64\hfpapi.dll

            Filesize

            241KB

            MD5

            9c857f86101935897d09ae886da3e872

            SHA1

            6bacd111e12bf5d83045bb9f59682cfd2e705551

            SHA256

            3ff69859aa868a21be170f5e7359d38db1b71100c02eb032bd5b20d922c0c169

            SHA512

            217c5c66f7f3d43613f0c618cfd24609bad9badcf0417d5fc9dfd467df7f2b1a6e0ef9b12f4d329b24a367cfc51f27f884b74963bd234a281a45334cb008bec2

          • C:\Windows\SysWOW64\hfpapi.dll

            Filesize

            241KB

            MD5

            9c857f86101935897d09ae886da3e872

            SHA1

            6bacd111e12bf5d83045bb9f59682cfd2e705551

            SHA256

            3ff69859aa868a21be170f5e7359d38db1b71100c02eb032bd5b20d922c0c169

            SHA512

            217c5c66f7f3d43613f0c618cfd24609bad9badcf0417d5fc9dfd467df7f2b1a6e0ef9b12f4d329b24a367cfc51f27f884b74963bd234a281a45334cb008bec2

          • C:\Windows\SysWOW64\hfpapi.dll

            Filesize

            241KB

            MD5

            9c857f86101935897d09ae886da3e872

            SHA1

            6bacd111e12bf5d83045bb9f59682cfd2e705551

            SHA256

            3ff69859aa868a21be170f5e7359d38db1b71100c02eb032bd5b20d922c0c169

            SHA512

            217c5c66f7f3d43613f0c618cfd24609bad9badcf0417d5fc9dfd467df7f2b1a6e0ef9b12f4d329b24a367cfc51f27f884b74963bd234a281a45334cb008bec2

          • C:\Windows\SysWOW64\installd.exe

            Filesize

            108KB

            MD5

            2721f82cae52ca1987b6ff897f04dd79

            SHA1

            4903c460963f7bebf1c8f57b283dd6d0c5644a97

            SHA256

            48a30a7ab9b05a9e48372dc8bf3096c7bfdb61e09303c504c1f7e242bdcf1d99

            SHA512

            eacfb2c7234ee4e806ba799b62a8086330ded3bfc7d5417395a2cd556aacd71e5ec0cda14b72eced06a5070209693397bf76bfbfcbc56756b1fd710f72f1d9cf

          • C:\Windows\SysWOW64\installd.exe

            Filesize

            108KB

            MD5

            2721f82cae52ca1987b6ff897f04dd79

            SHA1

            4903c460963f7bebf1c8f57b283dd6d0c5644a97

            SHA256

            48a30a7ab9b05a9e48372dc8bf3096c7bfdb61e09303c504c1f7e242bdcf1d99

            SHA512

            eacfb2c7234ee4e806ba799b62a8086330ded3bfc7d5417395a2cd556aacd71e5ec0cda14b72eced06a5070209693397bf76bfbfcbc56756b1fd710f72f1d9cf

          • C:\Windows\SysWOW64\nethtsrv.exe

            Filesize

            176KB

            MD5

            79bb3345bd49e875d0ba72e8b51534f5

            SHA1

            e900d4b4068f583c43058806d7007eb09325be11

            SHA256

            334022bebf3ab6a846fed12a835fafc8f3962dc05102777158575386e502499e

            SHA512

            45eaa9900c2d2417d45409a770cd9d84e9cca86e8475f8f1ffda14ab5cac42f7fd037fe3a1551dfc7d9187b7edb83014103a95bbe5def4464f33a1b01f9a05dd

          • C:\Windows\SysWOW64\nethtsrv.exe

            Filesize

            176KB

            MD5

            79bb3345bd49e875d0ba72e8b51534f5

            SHA1

            e900d4b4068f583c43058806d7007eb09325be11

            SHA256

            334022bebf3ab6a846fed12a835fafc8f3962dc05102777158575386e502499e

            SHA512

            45eaa9900c2d2417d45409a770cd9d84e9cca86e8475f8f1ffda14ab5cac42f7fd037fe3a1551dfc7d9187b7edb83014103a95bbe5def4464f33a1b01f9a05dd

          • C:\Windows\SysWOW64\nethtsrv.exe

            Filesize

            176KB

            MD5

            79bb3345bd49e875d0ba72e8b51534f5

            SHA1

            e900d4b4068f583c43058806d7007eb09325be11

            SHA256

            334022bebf3ab6a846fed12a835fafc8f3962dc05102777158575386e502499e

            SHA512

            45eaa9900c2d2417d45409a770cd9d84e9cca86e8475f8f1ffda14ab5cac42f7fd037fe3a1551dfc7d9187b7edb83014103a95bbe5def4464f33a1b01f9a05dd

          • C:\Windows\SysWOW64\netupdsrv.exe

            Filesize

            158KB

            MD5

            9094542cbb421f2da6d6d06d7cc92a1a

            SHA1

            d330942c5a4d2baa649eb494ec3fa3fb70f2613e

            SHA256

            5452aac8842c83da79ed57287dbb2108726cf25420dcc72651a4695e755574af

            SHA512

            71a9d6e2b70113e13762385c6205a3b405e5628560b2ae3d548a3d2a7d91c263d6c59e54be30ad71f7b3ca210ed83cdd255d6b3105f675a9798f72e15936e8a8

          • C:\Windows\SysWOW64\netupdsrv.exe

            Filesize

            158KB

            MD5

            9094542cbb421f2da6d6d06d7cc92a1a

            SHA1

            d330942c5a4d2baa649eb494ec3fa3fb70f2613e

            SHA256

            5452aac8842c83da79ed57287dbb2108726cf25420dcc72651a4695e755574af

            SHA512

            71a9d6e2b70113e13762385c6205a3b405e5628560b2ae3d548a3d2a7d91c263d6c59e54be30ad71f7b3ca210ed83cdd255d6b3105f675a9798f72e15936e8a8

          • C:\Windows\SysWOW64\netupdsrv.exe

            Filesize

            158KB

            MD5

            9094542cbb421f2da6d6d06d7cc92a1a

            SHA1

            d330942c5a4d2baa649eb494ec3fa3fb70f2613e

            SHA256

            5452aac8842c83da79ed57287dbb2108726cf25420dcc72651a4695e755574af

            SHA512

            71a9d6e2b70113e13762385c6205a3b405e5628560b2ae3d548a3d2a7d91c263d6c59e54be30ad71f7b3ca210ed83cdd255d6b3105f675a9798f72e15936e8a8

          • memory/448-132-0x0000000000360000-0x00000000007BE000-memory.dmp

            Filesize

            4.4MB

          • memory/448-168-0x0000000000360000-0x00000000007BE000-memory.dmp

            Filesize

            4.4MB