Analysis

  • max time kernel
    148s
  • max time network
    153s
  • 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, 00:08

General

  • Target

    1082f15776d13df4315e1e806915e1c52d5144c3b823fb211bd06576642316fd.exe

  • Size

    603KB

  • MD5

    7e34f555b0d6bde70d2fba019072cf87

  • SHA1

    c05f68b0130e341b74fcb79e9e62d9bcd053abfb

  • SHA256

    1082f15776d13df4315e1e806915e1c52d5144c3b823fb211bd06576642316fd

  • SHA512

    c4f8280002eb2cd1dae60cc410714f357f2b564791e9981c97ef8416908659f639c1c53e5fb6c9968d4acc0177b00c5805bfd72944fc520ad8a174f20842e836

  • SSDEEP

    12288:cIny5DYTfImTAUx1W2GDg5TuySlyN23jf3QGYt8wUvASMOw:6UTfZTd1ceTuyS+tW

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\1082f15776d13df4315e1e806915e1c52d5144c3b823fb211bd06576642316fd.exe
    "C:\Users\Admin\AppData\Local\Temp\1082f15776d13df4315e1e806915e1c52d5144c3b823fb211bd06576642316fd.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:4960
    • C:\Windows\SysWOW64\net.exe
      net stop nethttpservice
      2⤵
      • Suspicious use of WriteProcessMemory
      PID:456
      • C:\Windows\SysWOW64\net1.exe
        C:\Windows\system32\net1 stop nethttpservice
        3⤵
          PID:4060
      • C:\Windows\SysWOW64\net.exe
        net stop serviceupdater
        2⤵
        • Suspicious use of WriteProcessMemory
        PID:4184
        • C:\Windows\SysWOW64\net1.exe
          C:\Windows\system32\net1 stop serviceupdater
          3⤵
            PID:4296
        • C:\Windows\SysWOW64\installd.exe
          "C:\Windows\system32\installd.exe" nethfdrv
          2⤵
          • Executes dropped EXE
          • Loads dropped DLL
          PID:4320
        • C:\Windows\SysWOW64\nethtsrv.exe
          "C:\Windows\system32\nethtsrv.exe" -nfdi
          2⤵
          • Executes dropped EXE
          • Loads dropped DLL
          PID:220
        • C:\Windows\SysWOW64\netupdsrv.exe
          "C:\Windows\system32\netupdsrv.exe" -nfdi
          2⤵
          • Executes dropped EXE
          PID:3664
        • C:\Windows\SysWOW64\net.exe
          net start nethttpservice
          2⤵
          • Suspicious use of WriteProcessMemory
          PID:4316
          • C:\Windows\SysWOW64\net1.exe
            C:\Windows\system32\net1 start nethttpservice
            3⤵
              PID:4068
          • C:\Windows\SysWOW64\net.exe
            net start serviceupdater
            2⤵
            • Suspicious use of WriteProcessMemory
            PID:1220
            • C:\Windows\SysWOW64\net1.exe
              C:\Windows\system32\net1 start serviceupdater
              3⤵
                PID:3812
          • 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:2716
          • C:\Windows\SysWOW64\netupdsrv.exe
            C:\Windows\SysWOW64\netupdsrv.exe
            1⤵
            • Executes dropped EXE
            PID:3816

          Network

                MITRE ATT&CK Enterprise v6

                Replay Monitor

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                Downloads

                • C:\Users\Admin\AppData\Local\Temp\nsb8B01.tmp\System.dll

                  Filesize

                  11KB

                  MD5

                  c17103ae9072a06da581dec998343fc1

                  SHA1

                  b72148c6bdfaada8b8c3f950e610ee7cf1da1f8d

                  SHA256

                  dc58d8ad81cacb0c1ed72e33bff8f23ea40b5252b5bb55d393a0903e6819ae2f

                  SHA512

                  d32a71aaef18e993f28096d536e41c4d016850721b31171513ce28bbd805a54fd290b7c3e9d935f72e676a1acfb4f0dcc89d95040a0dd29f2b6975855c18986f

                • C:\Users\Admin\AppData\Local\Temp\nsb8B01.tmp\nsExec.dll

                  Filesize

                  6KB

                  MD5

                  acc2b699edfea5bf5aae45aba3a41e96

                  SHA1

                  d2accf4d494e43ceb2cff69abe4dd17147d29cc2

                  SHA256

                  168a974eaa3f588d759db3f47c1a9fdc3494ba1fa1a73a84e5e3b2a4d58abd7e

                  SHA512

                  e29ea10ada98c71a18273b04f44f385b120d4e8473e441ce5748cfa44a23648814f2656f429b85440157988c88de776c6ac008dc38bf09cbb746c230a46c69fe

                • C:\Users\Admin\AppData\Local\Temp\nsb8B01.tmp\nsExec.dll

                  Filesize

                  6KB

                  MD5

                  acc2b699edfea5bf5aae45aba3a41e96

                  SHA1

                  d2accf4d494e43ceb2cff69abe4dd17147d29cc2

                  SHA256

                  168a974eaa3f588d759db3f47c1a9fdc3494ba1fa1a73a84e5e3b2a4d58abd7e

                  SHA512

                  e29ea10ada98c71a18273b04f44f385b120d4e8473e441ce5748cfa44a23648814f2656f429b85440157988c88de776c6ac008dc38bf09cbb746c230a46c69fe

                • C:\Users\Admin\AppData\Local\Temp\nsb8B01.tmp\nsExec.dll

                  Filesize

                  6KB

                  MD5

                  acc2b699edfea5bf5aae45aba3a41e96

                  SHA1

                  d2accf4d494e43ceb2cff69abe4dd17147d29cc2

                  SHA256

                  168a974eaa3f588d759db3f47c1a9fdc3494ba1fa1a73a84e5e3b2a4d58abd7e

                  SHA512

                  e29ea10ada98c71a18273b04f44f385b120d4e8473e441ce5748cfa44a23648814f2656f429b85440157988c88de776c6ac008dc38bf09cbb746c230a46c69fe

                • C:\Users\Admin\AppData\Local\Temp\nsb8B01.tmp\nsExec.dll

                  Filesize

                  6KB

                  MD5

                  acc2b699edfea5bf5aae45aba3a41e96

                  SHA1

                  d2accf4d494e43ceb2cff69abe4dd17147d29cc2

                  SHA256

                  168a974eaa3f588d759db3f47c1a9fdc3494ba1fa1a73a84e5e3b2a4d58abd7e

                  SHA512

                  e29ea10ada98c71a18273b04f44f385b120d4e8473e441ce5748cfa44a23648814f2656f429b85440157988c88de776c6ac008dc38bf09cbb746c230a46c69fe

                • C:\Users\Admin\AppData\Local\Temp\nsb8B01.tmp\nsExec.dll

                  Filesize

                  6KB

                  MD5

                  acc2b699edfea5bf5aae45aba3a41e96

                  SHA1

                  d2accf4d494e43ceb2cff69abe4dd17147d29cc2

                  SHA256

                  168a974eaa3f588d759db3f47c1a9fdc3494ba1fa1a73a84e5e3b2a4d58abd7e

                  SHA512

                  e29ea10ada98c71a18273b04f44f385b120d4e8473e441ce5748cfa44a23648814f2656f429b85440157988c88de776c6ac008dc38bf09cbb746c230a46c69fe

                • C:\Users\Admin\AppData\Local\Temp\nsb8B01.tmp\nsExec.dll

                  Filesize

                  6KB

                  MD5

                  acc2b699edfea5bf5aae45aba3a41e96

                  SHA1

                  d2accf4d494e43ceb2cff69abe4dd17147d29cc2

                  SHA256

                  168a974eaa3f588d759db3f47c1a9fdc3494ba1fa1a73a84e5e3b2a4d58abd7e

                  SHA512

                  e29ea10ada98c71a18273b04f44f385b120d4e8473e441ce5748cfa44a23648814f2656f429b85440157988c88de776c6ac008dc38bf09cbb746c230a46c69fe

                • C:\Users\Admin\AppData\Local\Temp\nsb8B01.tmp\nsExec.dll

                  Filesize

                  6KB

                  MD5

                  acc2b699edfea5bf5aae45aba3a41e96

                  SHA1

                  d2accf4d494e43ceb2cff69abe4dd17147d29cc2

                  SHA256

                  168a974eaa3f588d759db3f47c1a9fdc3494ba1fa1a73a84e5e3b2a4d58abd7e

                  SHA512

                  e29ea10ada98c71a18273b04f44f385b120d4e8473e441ce5748cfa44a23648814f2656f429b85440157988c88de776c6ac008dc38bf09cbb746c230a46c69fe

                • C:\Users\Admin\AppData\Local\Temp\nsb8B01.tmp\nsExec.dll

                  Filesize

                  6KB

                  MD5

                  acc2b699edfea5bf5aae45aba3a41e96

                  SHA1

                  d2accf4d494e43ceb2cff69abe4dd17147d29cc2

                  SHA256

                  168a974eaa3f588d759db3f47c1a9fdc3494ba1fa1a73a84e5e3b2a4d58abd7e

                  SHA512

                  e29ea10ada98c71a18273b04f44f385b120d4e8473e441ce5748cfa44a23648814f2656f429b85440157988c88de776c6ac008dc38bf09cbb746c230a46c69fe

                • C:\Windows\SysWOW64\hfnapi.dll

                  Filesize

                  106KB

                  MD5

                  c34803bb3c2d52b7c86d1db30bc8df47

                  SHA1

                  13cacc0ac3f7baa96d0b0be0bbccef7029893608

                  SHA256

                  f3caafd4fd4757063212153d5bfea0bc1dcdcb75090afc4269a80bda73d65383

                  SHA512

                  0326f550da00c544c262f8fd4f35728565151f8ccb43a83bdf5cdd902837fa3aac1c303d10ed9eeeb3b9b76b02a5e17b09f15cba63e252dce9095ab9ea6950c4

                • C:\Windows\SysWOW64\hfnapi.dll

                  Filesize

                  106KB

                  MD5

                  c34803bb3c2d52b7c86d1db30bc8df47

                  SHA1

                  13cacc0ac3f7baa96d0b0be0bbccef7029893608

                  SHA256

                  f3caafd4fd4757063212153d5bfea0bc1dcdcb75090afc4269a80bda73d65383

                  SHA512

                  0326f550da00c544c262f8fd4f35728565151f8ccb43a83bdf5cdd902837fa3aac1c303d10ed9eeeb3b9b76b02a5e17b09f15cba63e252dce9095ab9ea6950c4

                • C:\Windows\SysWOW64\hfnapi.dll

                  Filesize

                  106KB

                  MD5

                  c34803bb3c2d52b7c86d1db30bc8df47

                  SHA1

                  13cacc0ac3f7baa96d0b0be0bbccef7029893608

                  SHA256

                  f3caafd4fd4757063212153d5bfea0bc1dcdcb75090afc4269a80bda73d65383

                  SHA512

                  0326f550da00c544c262f8fd4f35728565151f8ccb43a83bdf5cdd902837fa3aac1c303d10ed9eeeb3b9b76b02a5e17b09f15cba63e252dce9095ab9ea6950c4

                • C:\Windows\SysWOW64\hfnapi.dll

                  Filesize

                  106KB

                  MD5

                  c34803bb3c2d52b7c86d1db30bc8df47

                  SHA1

                  13cacc0ac3f7baa96d0b0be0bbccef7029893608

                  SHA256

                  f3caafd4fd4757063212153d5bfea0bc1dcdcb75090afc4269a80bda73d65383

                  SHA512

                  0326f550da00c544c262f8fd4f35728565151f8ccb43a83bdf5cdd902837fa3aac1c303d10ed9eeeb3b9b76b02a5e17b09f15cba63e252dce9095ab9ea6950c4

                • C:\Windows\SysWOW64\hfpapi.dll

                  Filesize

                  244KB

                  MD5

                  20be1a186738799ee9f372fea55b3209

                  SHA1

                  22b867553f1da406a9118ce1b589eac9352211ce

                  SHA256

                  a10963827eb17965a7c1bbea4a23aae81de2a952d9d3a0a6dcf8445e1821a7df

                  SHA512

                  75bea4ff0b0274edf59476f48a420f63ecee6afba8e41b62cd1c5f475fc27ee11517b3ccc4f439cd63a02053b54968f916442c8a4541a715bea6885021947ac5

                • C:\Windows\SysWOW64\hfpapi.dll

                  Filesize

                  244KB

                  MD5

                  20be1a186738799ee9f372fea55b3209

                  SHA1

                  22b867553f1da406a9118ce1b589eac9352211ce

                  SHA256

                  a10963827eb17965a7c1bbea4a23aae81de2a952d9d3a0a6dcf8445e1821a7df

                  SHA512

                  75bea4ff0b0274edf59476f48a420f63ecee6afba8e41b62cd1c5f475fc27ee11517b3ccc4f439cd63a02053b54968f916442c8a4541a715bea6885021947ac5

                • C:\Windows\SysWOW64\hfpapi.dll

                  Filesize

                  244KB

                  MD5

                  20be1a186738799ee9f372fea55b3209

                  SHA1

                  22b867553f1da406a9118ce1b589eac9352211ce

                  SHA256

                  a10963827eb17965a7c1bbea4a23aae81de2a952d9d3a0a6dcf8445e1821a7df

                  SHA512

                  75bea4ff0b0274edf59476f48a420f63ecee6afba8e41b62cd1c5f475fc27ee11517b3ccc4f439cd63a02053b54968f916442c8a4541a715bea6885021947ac5

                • C:\Windows\SysWOW64\installd.exe

                  Filesize

                  108KB

                  MD5

                  76ff76bc96caf6f22466c5a3e241d41d

                  SHA1

                  e3cc62c3ba112c753620493b7192f054f5483a80

                  SHA256

                  9d7b10fbc502e32292844c91ed63509ae345adae812deadd8d60c8a8240f270c

                  SHA512

                  bc7a1557e02c4d3c570cd2901d51ff7870f3c918fb14d311a6b04ddf0e6b13798d28199c55c2b798d79c4d4acef722ea6e7306a356d06e4e0afc09fc53886081

                • C:\Windows\SysWOW64\installd.exe

                  Filesize

                  108KB

                  MD5

                  76ff76bc96caf6f22466c5a3e241d41d

                  SHA1

                  e3cc62c3ba112c753620493b7192f054f5483a80

                  SHA256

                  9d7b10fbc502e32292844c91ed63509ae345adae812deadd8d60c8a8240f270c

                  SHA512

                  bc7a1557e02c4d3c570cd2901d51ff7870f3c918fb14d311a6b04ddf0e6b13798d28199c55c2b798d79c4d4acef722ea6e7306a356d06e4e0afc09fc53886081

                • C:\Windows\SysWOW64\nethtsrv.exe

                  Filesize

                  176KB

                  MD5

                  7a5465b1f17fcc1c5c2403ad2616c413

                  SHA1

                  d7f5e2acf04a3048e007e5bd5cb9692b3ede88cb

                  SHA256

                  0766c9d63b46d537af69aea587e0f89c6ad33b8e233afcbc2d5c4a7bbe44e468

                  SHA512

                  b2f5e788d4b182178874819df8d338afe47385ee169634cd26f2164a99c39144e469054497b18a8b4c5877fb37e8b2cac02a888224bddeb3948083347020b1b4

                • C:\Windows\SysWOW64\nethtsrv.exe

                  Filesize

                  176KB

                  MD5

                  7a5465b1f17fcc1c5c2403ad2616c413

                  SHA1

                  d7f5e2acf04a3048e007e5bd5cb9692b3ede88cb

                  SHA256

                  0766c9d63b46d537af69aea587e0f89c6ad33b8e233afcbc2d5c4a7bbe44e468

                  SHA512

                  b2f5e788d4b182178874819df8d338afe47385ee169634cd26f2164a99c39144e469054497b18a8b4c5877fb37e8b2cac02a888224bddeb3948083347020b1b4

                • C:\Windows\SysWOW64\nethtsrv.exe

                  Filesize

                  176KB

                  MD5

                  7a5465b1f17fcc1c5c2403ad2616c413

                  SHA1

                  d7f5e2acf04a3048e007e5bd5cb9692b3ede88cb

                  SHA256

                  0766c9d63b46d537af69aea587e0f89c6ad33b8e233afcbc2d5c4a7bbe44e468

                  SHA512

                  b2f5e788d4b182178874819df8d338afe47385ee169634cd26f2164a99c39144e469054497b18a8b4c5877fb37e8b2cac02a888224bddeb3948083347020b1b4

                • C:\Windows\SysWOW64\netupdsrv.exe

                  Filesize

                  158KB

                  MD5

                  cb9bdedd0433d5cb38e22fd787de432d

                  SHA1

                  0c48f32779199502e16483810e83a1f57a3748d8

                  SHA256

                  8e1db541e52e111151eef4cef88f08ff80dc7bb69d0f834d72bd80a7056ec233

                  SHA512

                  e1e145ab4dbd225d5578f1bd967f30d57abdbc490e973a6ee34af3a105da83cd25552eebdad9e40f47877fe7ba4763bd177815bfb98698c7ca612757c036d972

                • C:\Windows\SysWOW64\netupdsrv.exe

                  Filesize

                  158KB

                  MD5

                  cb9bdedd0433d5cb38e22fd787de432d

                  SHA1

                  0c48f32779199502e16483810e83a1f57a3748d8

                  SHA256

                  8e1db541e52e111151eef4cef88f08ff80dc7bb69d0f834d72bd80a7056ec233

                  SHA512

                  e1e145ab4dbd225d5578f1bd967f30d57abdbc490e973a6ee34af3a105da83cd25552eebdad9e40f47877fe7ba4763bd177815bfb98698c7ca612757c036d972

                • C:\Windows\SysWOW64\netupdsrv.exe

                  Filesize

                  158KB

                  MD5

                  cb9bdedd0433d5cb38e22fd787de432d

                  SHA1

                  0c48f32779199502e16483810e83a1f57a3748d8

                  SHA256

                  8e1db541e52e111151eef4cef88f08ff80dc7bb69d0f834d72bd80a7056ec233

                  SHA512

                  e1e145ab4dbd225d5578f1bd967f30d57abdbc490e973a6ee34af3a105da83cd25552eebdad9e40f47877fe7ba4763bd177815bfb98698c7ca612757c036d972

                • memory/4960-132-0x0000000000360000-0x00000000007BE000-memory.dmp

                  Filesize

                  4.4MB

                • memory/4960-168-0x0000000000360000-0x00000000007BE000-memory.dmp

                  Filesize

                  4.4MB