Analysis

  • max time kernel
    45s
  • max time network
    49s
  • platform
    windows7_x64
  • resource
    win7-20220901-en
  • resource tags

    arch:x64arch:x86image:win7-20220901-enlocale:en-usos:windows7-x64system
  • submitted
    23-11-2022 10:22

General

  • Target

    79778290154a3fed8df34ee66e50364ed5d6ef8e8538e95ab6da4166e65da18c.exe

  • Size

    602KB

  • MD5

    0bbba5f08dbf49f8ef612069226bd5e5

  • SHA1

    c933c154ce73bd46678f947032393a14b5f31931

  • SHA256

    79778290154a3fed8df34ee66e50364ed5d6ef8e8538e95ab6da4166e65da18c

  • SHA512

    7913d2aeeffbe449cd238cb9548a5ae10236c0f6f02060042ce80d406362680d2a79c45524f0a7d026d029f4f483f7f024e5b8f1e19780a0f184271beeb7875b

  • SSDEEP

    12288:7Iny5DYTWl2IfJm1oPmcMhLM0srd/45l0w+kf4yS/nIhoZ:DUTW0IfMambyTrkh+kfK/Iho

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\79778290154a3fed8df34ee66e50364ed5d6ef8e8538e95ab6da4166e65da18c.exe
    "C:\Users\Admin\AppData\Local\Temp\79778290154a3fed8df34ee66e50364ed5d6ef8e8538e95ab6da4166e65da18c.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:1352
    • C:\Windows\SysWOW64\net.exe
      net stop nethttpservice
      2⤵
      • Suspicious use of WriteProcessMemory
      PID:1324
      • C:\Windows\SysWOW64\net1.exe
        C:\Windows\system32\net1 stop nethttpservice
        3⤵
          PID:1112
      • C:\Windows\SysWOW64\net.exe
        net stop serviceupdater
        2⤵
        • Suspicious use of WriteProcessMemory
        PID:2024
        • C:\Windows\SysWOW64\net1.exe
          C:\Windows\system32\net1 stop serviceupdater
          3⤵
            PID:1376
        • C:\Windows\SysWOW64\installd.exe
          "C:\Windows\system32\installd.exe" nethfdrv
          2⤵
          • Executes dropped EXE
          • Loads dropped DLL
          PID:844
        • C:\Windows\SysWOW64\nethtsrv.exe
          "C:\Windows\system32\nethtsrv.exe" -nfdi
          2⤵
          • Executes dropped EXE
          • Loads dropped DLL
          PID:1664
        • C:\Windows\SysWOW64\netupdsrv.exe
          "C:\Windows\system32\netupdsrv.exe" -nfdi
          2⤵
          • Executes dropped EXE
          PID:1840
        • C:\Windows\SysWOW64\net.exe
          net start nethttpservice
          2⤵
          • Suspicious use of WriteProcessMemory
          PID:756
          • C:\Windows\SysWOW64\net1.exe
            C:\Windows\system32\net1 start nethttpservice
            3⤵
              PID:1888
          • C:\Windows\SysWOW64\net.exe
            net start serviceupdater
            2⤵
            • Suspicious use of WriteProcessMemory
            PID:960
            • C:\Windows\SysWOW64\net1.exe
              C:\Windows\system32\net1 start serviceupdater
              3⤵
                PID:1080
          • C:\Windows\SysWOW64\nethtsrv.exe
            C:\Windows\SysWOW64\nethtsrv.exe
            1⤵
            • Executes dropped EXE
            • Loads dropped DLL
            • Suspicious use of AdjustPrivilegeToken
            PID:1720
          • C:\Windows\SysWOW64\netupdsrv.exe
            C:\Windows\SysWOW64\netupdsrv.exe
            1⤵
            • Executes dropped EXE
            PID:1512

          Network

          MITRE ATT&CK Enterprise v6

          Replay Monitor

          Loading Replay Monitor...

          Downloads

          • C:\Windows\SysWOW64\hfnapi.dll

            Filesize

            106KB

            MD5

            98d41a860281cb1c247054e95209fd24

            SHA1

            465bc397882779b48d3e9dd817d1e8ec538e31aa

            SHA256

            481710db9c9ba18fe0fe44239d38f6272c40659b00d053e24a4bf2295b4d3341

            SHA512

            fbb0a5439710cb1e7a1846e714b53fc4e254a6b770626a5e8e171dab22c75c2ffedb45a1d88eca5656b43843b2820dfacb16261dfe6924f2cc01a5be6cccca57

          • C:\Windows\SysWOW64\hfpapi.dll

            Filesize

            241KB

            MD5

            465f6ddf4bb94983acbea90165a75158

            SHA1

            1460280a1b1399f677e78db843f09ec2cc7c82f3

            SHA256

            5992f4aa7632d63d224799378fc4a971e878f25a7aa199ad9db54e5f60a8b99a

            SHA512

            370c8722691e02f7637c3b9de0a9462a5f82ef7801b54ca3933a4f377895b1d2d9c626446fc52fc21364255d5b6dd61f2119ea61b47670dc55813a4d3531e35d

          • C:\Windows\SysWOW64\installd.exe

            Filesize

            108KB

            MD5

            7a1dd721a931e5bebdb502cc8c69f571

            SHA1

            188514169b02b84829adf19f63f46a33adfdeb47

            SHA256

            42ce7e66231a33971f4402e6f8351e0627259f4c71373c473d8b40a7ee2e708d

            SHA512

            e77bdd0938e87f35ba9361a602235e6744611b072682b89fb3bc751fffaaa09b88cad568e86d1b323c7faeac136879c526cb7d1c4dd7a11cdf0ee70e30c028f8

          • C:\Windows\SysWOW64\nethtsrv.exe

            Filesize

            176KB

            MD5

            a9ca1a06462d5b8bb36b3dfabbfd2485

            SHA1

            801f82d3a313b531901bdae88e2c401fcaae6bdf

            SHA256

            3d4e3de76782c3bba377d4db82ab7f4ea0ade48a89dab8a5767e0d0ded9d4251

            SHA512

            e2c7a92a2a3aee9f25d4d5dd74d71606df24351509eb0bf07bc7b3dccbb0508cebf10b780f8997e6cd950d63127d6781139b5c53bf611a44904e8532f44bfc71

          • C:\Windows\SysWOW64\nethtsrv.exe

            Filesize

            176KB

            MD5

            a9ca1a06462d5b8bb36b3dfabbfd2485

            SHA1

            801f82d3a313b531901bdae88e2c401fcaae6bdf

            SHA256

            3d4e3de76782c3bba377d4db82ab7f4ea0ade48a89dab8a5767e0d0ded9d4251

            SHA512

            e2c7a92a2a3aee9f25d4d5dd74d71606df24351509eb0bf07bc7b3dccbb0508cebf10b780f8997e6cd950d63127d6781139b5c53bf611a44904e8532f44bfc71

          • C:\Windows\SysWOW64\netupdsrv.exe

            Filesize

            158KB

            MD5

            982bd0c1aa99b7c9345d3e330471a28a

            SHA1

            e9fa70ede7941810bdbd64da34f7001ce7f96e31

            SHA256

            979bad4d738403d3cb7aef6a9f7ed98a539cce88b2ead17631b0a1424b93e341

            SHA512

            ad78a9cd25c07ebfa8970a6050690b0faf0f66922f19a434ab66334c242d19b6dd5c312bcc9ae08d1151bd45eb277088436b685738408b012a16ed3a8f88bd90

          • C:\Windows\SysWOW64\netupdsrv.exe

            Filesize

            158KB

            MD5

            982bd0c1aa99b7c9345d3e330471a28a

            SHA1

            e9fa70ede7941810bdbd64da34f7001ce7f96e31

            SHA256

            979bad4d738403d3cb7aef6a9f7ed98a539cce88b2ead17631b0a1424b93e341

            SHA512

            ad78a9cd25c07ebfa8970a6050690b0faf0f66922f19a434ab66334c242d19b6dd5c312bcc9ae08d1151bd45eb277088436b685738408b012a16ed3a8f88bd90

          • \Users\Admin\AppData\Local\Temp\nsy3852.tmp\System.dll

            Filesize

            11KB

            MD5

            c17103ae9072a06da581dec998343fc1

            SHA1

            b72148c6bdfaada8b8c3f950e610ee7cf1da1f8d

            SHA256

            dc58d8ad81cacb0c1ed72e33bff8f23ea40b5252b5bb55d393a0903e6819ae2f

            SHA512

            d32a71aaef18e993f28096d536e41c4d016850721b31171513ce28bbd805a54fd290b7c3e9d935f72e676a1acfb4f0dcc89d95040a0dd29f2b6975855c18986f

          • \Users\Admin\AppData\Local\Temp\nsy3852.tmp\nsExec.dll

            Filesize

            6KB

            MD5

            acc2b699edfea5bf5aae45aba3a41e96

            SHA1

            d2accf4d494e43ceb2cff69abe4dd17147d29cc2

            SHA256

            168a974eaa3f588d759db3f47c1a9fdc3494ba1fa1a73a84e5e3b2a4d58abd7e

            SHA512

            e29ea10ada98c71a18273b04f44f385b120d4e8473e441ce5748cfa44a23648814f2656f429b85440157988c88de776c6ac008dc38bf09cbb746c230a46c69fe

          • \Users\Admin\AppData\Local\Temp\nsy3852.tmp\nsExec.dll

            Filesize

            6KB

            MD5

            acc2b699edfea5bf5aae45aba3a41e96

            SHA1

            d2accf4d494e43ceb2cff69abe4dd17147d29cc2

            SHA256

            168a974eaa3f588d759db3f47c1a9fdc3494ba1fa1a73a84e5e3b2a4d58abd7e

            SHA512

            e29ea10ada98c71a18273b04f44f385b120d4e8473e441ce5748cfa44a23648814f2656f429b85440157988c88de776c6ac008dc38bf09cbb746c230a46c69fe

          • \Users\Admin\AppData\Local\Temp\nsy3852.tmp\nsExec.dll

            Filesize

            6KB

            MD5

            acc2b699edfea5bf5aae45aba3a41e96

            SHA1

            d2accf4d494e43ceb2cff69abe4dd17147d29cc2

            SHA256

            168a974eaa3f588d759db3f47c1a9fdc3494ba1fa1a73a84e5e3b2a4d58abd7e

            SHA512

            e29ea10ada98c71a18273b04f44f385b120d4e8473e441ce5748cfa44a23648814f2656f429b85440157988c88de776c6ac008dc38bf09cbb746c230a46c69fe

          • \Users\Admin\AppData\Local\Temp\nsy3852.tmp\nsExec.dll

            Filesize

            6KB

            MD5

            acc2b699edfea5bf5aae45aba3a41e96

            SHA1

            d2accf4d494e43ceb2cff69abe4dd17147d29cc2

            SHA256

            168a974eaa3f588d759db3f47c1a9fdc3494ba1fa1a73a84e5e3b2a4d58abd7e

            SHA512

            e29ea10ada98c71a18273b04f44f385b120d4e8473e441ce5748cfa44a23648814f2656f429b85440157988c88de776c6ac008dc38bf09cbb746c230a46c69fe

          • \Windows\SysWOW64\hfnapi.dll

            Filesize

            106KB

            MD5

            98d41a860281cb1c247054e95209fd24

            SHA1

            465bc397882779b48d3e9dd817d1e8ec538e31aa

            SHA256

            481710db9c9ba18fe0fe44239d38f6272c40659b00d053e24a4bf2295b4d3341

            SHA512

            fbb0a5439710cb1e7a1846e714b53fc4e254a6b770626a5e8e171dab22c75c2ffedb45a1d88eca5656b43843b2820dfacb16261dfe6924f2cc01a5be6cccca57

          • \Windows\SysWOW64\hfnapi.dll

            Filesize

            106KB

            MD5

            98d41a860281cb1c247054e95209fd24

            SHA1

            465bc397882779b48d3e9dd817d1e8ec538e31aa

            SHA256

            481710db9c9ba18fe0fe44239d38f6272c40659b00d053e24a4bf2295b4d3341

            SHA512

            fbb0a5439710cb1e7a1846e714b53fc4e254a6b770626a5e8e171dab22c75c2ffedb45a1d88eca5656b43843b2820dfacb16261dfe6924f2cc01a5be6cccca57

          • \Windows\SysWOW64\hfnapi.dll

            Filesize

            106KB

            MD5

            98d41a860281cb1c247054e95209fd24

            SHA1

            465bc397882779b48d3e9dd817d1e8ec538e31aa

            SHA256

            481710db9c9ba18fe0fe44239d38f6272c40659b00d053e24a4bf2295b4d3341

            SHA512

            fbb0a5439710cb1e7a1846e714b53fc4e254a6b770626a5e8e171dab22c75c2ffedb45a1d88eca5656b43843b2820dfacb16261dfe6924f2cc01a5be6cccca57

          • \Windows\SysWOW64\hfpapi.dll

            Filesize

            241KB

            MD5

            465f6ddf4bb94983acbea90165a75158

            SHA1

            1460280a1b1399f677e78db843f09ec2cc7c82f3

            SHA256

            5992f4aa7632d63d224799378fc4a971e878f25a7aa199ad9db54e5f60a8b99a

            SHA512

            370c8722691e02f7637c3b9de0a9462a5f82ef7801b54ca3933a4f377895b1d2d9c626446fc52fc21364255d5b6dd61f2119ea61b47670dc55813a4d3531e35d

          • \Windows\SysWOW64\hfpapi.dll

            Filesize

            241KB

            MD5

            465f6ddf4bb94983acbea90165a75158

            SHA1

            1460280a1b1399f677e78db843f09ec2cc7c82f3

            SHA256

            5992f4aa7632d63d224799378fc4a971e878f25a7aa199ad9db54e5f60a8b99a

            SHA512

            370c8722691e02f7637c3b9de0a9462a5f82ef7801b54ca3933a4f377895b1d2d9c626446fc52fc21364255d5b6dd61f2119ea61b47670dc55813a4d3531e35d

          • \Windows\SysWOW64\installd.exe

            Filesize

            108KB

            MD5

            7a1dd721a931e5bebdb502cc8c69f571

            SHA1

            188514169b02b84829adf19f63f46a33adfdeb47

            SHA256

            42ce7e66231a33971f4402e6f8351e0627259f4c71373c473d8b40a7ee2e708d

            SHA512

            e77bdd0938e87f35ba9361a602235e6744611b072682b89fb3bc751fffaaa09b88cad568e86d1b323c7faeac136879c526cb7d1c4dd7a11cdf0ee70e30c028f8

          • \Windows\SysWOW64\nethtsrv.exe

            Filesize

            176KB

            MD5

            a9ca1a06462d5b8bb36b3dfabbfd2485

            SHA1

            801f82d3a313b531901bdae88e2c401fcaae6bdf

            SHA256

            3d4e3de76782c3bba377d4db82ab7f4ea0ade48a89dab8a5767e0d0ded9d4251

            SHA512

            e2c7a92a2a3aee9f25d4d5dd74d71606df24351509eb0bf07bc7b3dccbb0508cebf10b780f8997e6cd950d63127d6781139b5c53bf611a44904e8532f44bfc71

          • \Windows\SysWOW64\netupdsrv.exe

            Filesize

            158KB

            MD5

            982bd0c1aa99b7c9345d3e330471a28a

            SHA1

            e9fa70ede7941810bdbd64da34f7001ce7f96e31

            SHA256

            979bad4d738403d3cb7aef6a9f7ed98a539cce88b2ead17631b0a1424b93e341

            SHA512

            ad78a9cd25c07ebfa8970a6050690b0faf0f66922f19a434ab66334c242d19b6dd5c312bcc9ae08d1151bd45eb277088436b685738408b012a16ed3a8f88bd90

          • memory/756-80-0x0000000000000000-mapping.dmp

          • memory/844-64-0x0000000000000000-mapping.dmp

          • memory/960-86-0x0000000000000000-mapping.dmp

          • memory/1080-87-0x0000000000000000-mapping.dmp

          • memory/1112-58-0x0000000000000000-mapping.dmp

          • memory/1324-57-0x0000000000000000-mapping.dmp

          • memory/1352-54-0x0000000075B51000-0x0000000075B53000-memory.dmp

            Filesize

            8KB

          • memory/1352-59-0x0000000000360000-0x00000000007BE000-memory.dmp

            Filesize

            4.4MB

          • memory/1352-90-0x0000000000360000-0x00000000007BE000-memory.dmp

            Filesize

            4.4MB

          • memory/1376-62-0x0000000000000000-mapping.dmp

          • memory/1664-70-0x0000000000000000-mapping.dmp

          • memory/1840-76-0x0000000000000000-mapping.dmp

          • memory/1888-81-0x0000000000000000-mapping.dmp

          • memory/2024-61-0x0000000000000000-mapping.dmp