Analysis

  • max time kernel
    44s
  • max time network
    50s
  • platform
    windows7_x64
  • resource
    win7-20220901-en
  • resource tags

    arch:x64arch:x86image:win7-20220901-enlocale:en-usos:windows7-x64system
  • submitted
    23-11-2022 10:19

General

  • Target

    952608c4594e4023a0152c36a49c3bc282f3e646364f44fca1c908f74f0cfbdb.exe

  • Size

    603KB

  • MD5

    c91d01dfdabc1f1f1eb7914846575125

  • SHA1

    cb2c517d57000a4a15c7871967d2e2a39bb648e9

  • SHA256

    952608c4594e4023a0152c36a49c3bc282f3e646364f44fca1c908f74f0cfbdb

  • SHA512

    9846585c0d7a3bf7a8fe6be4c8cc32f9d274a94bbda7fc6e4169575c3d865edbf4a33fe16d8a34e97173656ff1ccf78d71f90474e53967507eb2e53f7067eb73

  • SSDEEP

    12288:yIny5DYTEvvGa3Z3p4vkoXMeiV1cuLSltX8FuToiRG8dkYhvJ:0UTEXGa3ZWz8xV1tOltXNT5yo

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\952608c4594e4023a0152c36a49c3bc282f3e646364f44fca1c908f74f0cfbdb.exe
    "C:\Users\Admin\AppData\Local\Temp\952608c4594e4023a0152c36a49c3bc282f3e646364f44fca1c908f74f0cfbdb.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:1464
    • 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:1032
        • C:\Windows\SysWOW64\netupdsrv.exe
          "C:\Windows\system32\netupdsrv.exe" -nfdi
          2⤵
          • Executes dropped EXE
          PID:868
        • C:\Windows\SysWOW64\net.exe
          net start nethttpservice
          2⤵
          • Suspicious use of WriteProcessMemory
          PID:1748
          • C:\Windows\SysWOW64\net1.exe
            C:\Windows\system32\net1 start nethttpservice
            3⤵
              PID:1720
          • C:\Windows\SysWOW64\net.exe
            net start serviceupdater
            2⤵
            • Suspicious use of WriteProcessMemory
            PID:1252
            • C:\Windows\SysWOW64\net1.exe
              C:\Windows\system32\net1 start serviceupdater
              3⤵
                PID:1512
          • C:\Windows\SysWOW64\nethtsrv.exe
            C:\Windows\SysWOW64\nethtsrv.exe
            1⤵
            • Executes dropped EXE
            • Loads dropped DLL
            • Suspicious use of AdjustPrivilegeToken
            PID:1276
          • C:\Windows\SysWOW64\netupdsrv.exe
            C:\Windows\SysWOW64\netupdsrv.exe
            1⤵
            • Executes dropped EXE
            PID:1148

          Network

          MITRE ATT&CK Matrix ATT&CK v6

          Discovery

          Query Registry

          1
          T1012

          System Information Discovery

          1
          T1082

          Replay Monitor

          Loading Replay Monitor...

          Downloads

          • C:\Windows\SysWOW64\hfnapi.dll
            Filesize

            106KB

            MD5

            ba2ca1c09e3d9c7c655a34a505e4d2b5

            SHA1

            67a948236521cea00b652cdc142ea5be9d6231be

            SHA256

            9d76926aa0ac6199cc2a9f4d925a984038c7992ea01bef818c0a9ace1c123105

            SHA512

            ff36d768f049160e3e4d4233dcbad07c2110e6e989925343cfc4583b81874d934b45be6653e385d7c98ac30e8a9ff6fbe4083b98eb4c50c3b16441f6d639d281

          • C:\Windows\SysWOW64\hfpapi.dll
            Filesize

            241KB

            MD5

            98f45c1bd581b55aacd51b27ce42c2ec

            SHA1

            a6c105fd21c0f577fa3be2a42af99501cd38f323

            SHA256

            97854dda3dcf7bc917c9f7301471276283ad851716610cf35313d14f2f2f6eed

            SHA512

            e32d70f5fb7b9af395b88837f051ffff1d121e05d81ea842d6165c57f99f6f3a7194df2476b3e37c6be27958b0f075b888c93dfddfd2e46ca528fdac9637ba31

          • C:\Windows\SysWOW64\installd.exe
            Filesize

            108KB

            MD5

            72908471cd2c4178cb70f037e018538a

            SHA1

            a1d468697e14b447f6548f56c19a63f5ab03c02e

            SHA256

            999b56e8846f4f05efb83f82d06754ade19c268fa14a58d3aea48653d3f2d16b

            SHA512

            cf3a8a185b691a830a77c2805389aeef19e5dc1f920b86d5341f44cc93d0be7487726d8342fc2a8b002d19fc5433f9a7051e50f759ce07f7e21e235778686ecb

          • C:\Windows\SysWOW64\nethtsrv.exe
            Filesize

            176KB

            MD5

            fd3dd332cbda518e3f265a6bd5680781

            SHA1

            00a10affbf5d60b7336a045410c68f3c10353f51

            SHA256

            dca933dbc77ab6f01826d52bebc42c30189ad97428ff82c2c87d8993b118eb24

            SHA512

            223d5f777bf3778bfe3ed6b122c9f2e778a48df1ff945c9453ce55082b1917aec86596cad094a1c4a87ffc0507b79766ddcd7c1f6335e7e7254527c430a07afb

          • C:\Windows\SysWOW64\nethtsrv.exe
            Filesize

            176KB

            MD5

            fd3dd332cbda518e3f265a6bd5680781

            SHA1

            00a10affbf5d60b7336a045410c68f3c10353f51

            SHA256

            dca933dbc77ab6f01826d52bebc42c30189ad97428ff82c2c87d8993b118eb24

            SHA512

            223d5f777bf3778bfe3ed6b122c9f2e778a48df1ff945c9453ce55082b1917aec86596cad094a1c4a87ffc0507b79766ddcd7c1f6335e7e7254527c430a07afb

          • C:\Windows\SysWOW64\netupdsrv.exe
            Filesize

            158KB

            MD5

            5f034137b5a52eb9ac35829a3b4f9572

            SHA1

            5d4ce7905b8d7271d84d4a52ce362c1bd7afd142

            SHA256

            587d2ffaee2ada432b42f0a12556637025eff8607d481a0719fa46d3334b618c

            SHA512

            b82ee47b9d66101da64378cfd1b55d4fc33100492c2b33f066893abcc7ccf2be3bd1067510a0eecd930312e526de06df77222646d8c0dac596edc5036608eed3

          • C:\Windows\SysWOW64\netupdsrv.exe
            Filesize

            158KB

            MD5

            5f034137b5a52eb9ac35829a3b4f9572

            SHA1

            5d4ce7905b8d7271d84d4a52ce362c1bd7afd142

            SHA256

            587d2ffaee2ada432b42f0a12556637025eff8607d481a0719fa46d3334b618c

            SHA512

            b82ee47b9d66101da64378cfd1b55d4fc33100492c2b33f066893abcc7ccf2be3bd1067510a0eecd930312e526de06df77222646d8c0dac596edc5036608eed3

          • \Users\Admin\AppData\Local\Temp\nsy3B10.tmp\System.dll
            Filesize

            11KB

            MD5

            c17103ae9072a06da581dec998343fc1

            SHA1

            b72148c6bdfaada8b8c3f950e610ee7cf1da1f8d

            SHA256

            dc58d8ad81cacb0c1ed72e33bff8f23ea40b5252b5bb55d393a0903e6819ae2f

            SHA512

            d32a71aaef18e993f28096d536e41c4d016850721b31171513ce28bbd805a54fd290b7c3e9d935f72e676a1acfb4f0dcc89d95040a0dd29f2b6975855c18986f

          • \Users\Admin\AppData\Local\Temp\nsy3B10.tmp\nsExec.dll
            Filesize

            6KB

            MD5

            acc2b699edfea5bf5aae45aba3a41e96

            SHA1

            d2accf4d494e43ceb2cff69abe4dd17147d29cc2

            SHA256

            168a974eaa3f588d759db3f47c1a9fdc3494ba1fa1a73a84e5e3b2a4d58abd7e

            SHA512

            e29ea10ada98c71a18273b04f44f385b120d4e8473e441ce5748cfa44a23648814f2656f429b85440157988c88de776c6ac008dc38bf09cbb746c230a46c69fe

          • \Users\Admin\AppData\Local\Temp\nsy3B10.tmp\nsExec.dll
            Filesize

            6KB

            MD5

            acc2b699edfea5bf5aae45aba3a41e96

            SHA1

            d2accf4d494e43ceb2cff69abe4dd17147d29cc2

            SHA256

            168a974eaa3f588d759db3f47c1a9fdc3494ba1fa1a73a84e5e3b2a4d58abd7e

            SHA512

            e29ea10ada98c71a18273b04f44f385b120d4e8473e441ce5748cfa44a23648814f2656f429b85440157988c88de776c6ac008dc38bf09cbb746c230a46c69fe

          • \Users\Admin\AppData\Local\Temp\nsy3B10.tmp\nsExec.dll
            Filesize

            6KB

            MD5

            acc2b699edfea5bf5aae45aba3a41e96

            SHA1

            d2accf4d494e43ceb2cff69abe4dd17147d29cc2

            SHA256

            168a974eaa3f588d759db3f47c1a9fdc3494ba1fa1a73a84e5e3b2a4d58abd7e

            SHA512

            e29ea10ada98c71a18273b04f44f385b120d4e8473e441ce5748cfa44a23648814f2656f429b85440157988c88de776c6ac008dc38bf09cbb746c230a46c69fe

          • \Users\Admin\AppData\Local\Temp\nsy3B10.tmp\nsExec.dll
            Filesize

            6KB

            MD5

            acc2b699edfea5bf5aae45aba3a41e96

            SHA1

            d2accf4d494e43ceb2cff69abe4dd17147d29cc2

            SHA256

            168a974eaa3f588d759db3f47c1a9fdc3494ba1fa1a73a84e5e3b2a4d58abd7e

            SHA512

            e29ea10ada98c71a18273b04f44f385b120d4e8473e441ce5748cfa44a23648814f2656f429b85440157988c88de776c6ac008dc38bf09cbb746c230a46c69fe

          • \Windows\SysWOW64\hfnapi.dll
            Filesize

            106KB

            MD5

            ba2ca1c09e3d9c7c655a34a505e4d2b5

            SHA1

            67a948236521cea00b652cdc142ea5be9d6231be

            SHA256

            9d76926aa0ac6199cc2a9f4d925a984038c7992ea01bef818c0a9ace1c123105

            SHA512

            ff36d768f049160e3e4d4233dcbad07c2110e6e989925343cfc4583b81874d934b45be6653e385d7c98ac30e8a9ff6fbe4083b98eb4c50c3b16441f6d639d281

          • \Windows\SysWOW64\hfnapi.dll
            Filesize

            106KB

            MD5

            ba2ca1c09e3d9c7c655a34a505e4d2b5

            SHA1

            67a948236521cea00b652cdc142ea5be9d6231be

            SHA256

            9d76926aa0ac6199cc2a9f4d925a984038c7992ea01bef818c0a9ace1c123105

            SHA512

            ff36d768f049160e3e4d4233dcbad07c2110e6e989925343cfc4583b81874d934b45be6653e385d7c98ac30e8a9ff6fbe4083b98eb4c50c3b16441f6d639d281

          • \Windows\SysWOW64\hfnapi.dll
            Filesize

            106KB

            MD5

            ba2ca1c09e3d9c7c655a34a505e4d2b5

            SHA1

            67a948236521cea00b652cdc142ea5be9d6231be

            SHA256

            9d76926aa0ac6199cc2a9f4d925a984038c7992ea01bef818c0a9ace1c123105

            SHA512

            ff36d768f049160e3e4d4233dcbad07c2110e6e989925343cfc4583b81874d934b45be6653e385d7c98ac30e8a9ff6fbe4083b98eb4c50c3b16441f6d639d281

          • \Windows\SysWOW64\hfpapi.dll
            Filesize

            241KB

            MD5

            98f45c1bd581b55aacd51b27ce42c2ec

            SHA1

            a6c105fd21c0f577fa3be2a42af99501cd38f323

            SHA256

            97854dda3dcf7bc917c9f7301471276283ad851716610cf35313d14f2f2f6eed

            SHA512

            e32d70f5fb7b9af395b88837f051ffff1d121e05d81ea842d6165c57f99f6f3a7194df2476b3e37c6be27958b0f075b888c93dfddfd2e46ca528fdac9637ba31

          • \Windows\SysWOW64\hfpapi.dll
            Filesize

            241KB

            MD5

            98f45c1bd581b55aacd51b27ce42c2ec

            SHA1

            a6c105fd21c0f577fa3be2a42af99501cd38f323

            SHA256

            97854dda3dcf7bc917c9f7301471276283ad851716610cf35313d14f2f2f6eed

            SHA512

            e32d70f5fb7b9af395b88837f051ffff1d121e05d81ea842d6165c57f99f6f3a7194df2476b3e37c6be27958b0f075b888c93dfddfd2e46ca528fdac9637ba31

          • \Windows\SysWOW64\installd.exe
            Filesize

            108KB

            MD5

            72908471cd2c4178cb70f037e018538a

            SHA1

            a1d468697e14b447f6548f56c19a63f5ab03c02e

            SHA256

            999b56e8846f4f05efb83f82d06754ade19c268fa14a58d3aea48653d3f2d16b

            SHA512

            cf3a8a185b691a830a77c2805389aeef19e5dc1f920b86d5341f44cc93d0be7487726d8342fc2a8b002d19fc5433f9a7051e50f759ce07f7e21e235778686ecb

          • \Windows\SysWOW64\nethtsrv.exe
            Filesize

            176KB

            MD5

            fd3dd332cbda518e3f265a6bd5680781

            SHA1

            00a10affbf5d60b7336a045410c68f3c10353f51

            SHA256

            dca933dbc77ab6f01826d52bebc42c30189ad97428ff82c2c87d8993b118eb24

            SHA512

            223d5f777bf3778bfe3ed6b122c9f2e778a48df1ff945c9453ce55082b1917aec86596cad094a1c4a87ffc0507b79766ddcd7c1f6335e7e7254527c430a07afb

          • \Windows\SysWOW64\netupdsrv.exe
            Filesize

            158KB

            MD5

            5f034137b5a52eb9ac35829a3b4f9572

            SHA1

            5d4ce7905b8d7271d84d4a52ce362c1bd7afd142

            SHA256

            587d2ffaee2ada432b42f0a12556637025eff8607d481a0719fa46d3334b618c

            SHA512

            b82ee47b9d66101da64378cfd1b55d4fc33100492c2b33f066893abcc7ccf2be3bd1067510a0eecd930312e526de06df77222646d8c0dac596edc5036608eed3

          • memory/844-64-0x0000000000000000-mapping.dmp
          • memory/868-76-0x0000000000000000-mapping.dmp
          • memory/1032-70-0x0000000000000000-mapping.dmp
          • memory/1112-58-0x0000000000000000-mapping.dmp
          • memory/1252-86-0x0000000000000000-mapping.dmp
          • memory/1324-57-0x0000000000000000-mapping.dmp
          • memory/1376-62-0x0000000000000000-mapping.dmp
          • memory/1464-54-0x0000000075B51000-0x0000000075B53000-memory.dmp
            Filesize

            8KB

          • memory/1464-59-0x0000000000360000-0x00000000007BE000-memory.dmp
            Filesize

            4.4MB

          • memory/1464-90-0x0000000000360000-0x00000000007BE000-memory.dmp
            Filesize

            4.4MB

          • memory/1512-87-0x0000000000000000-mapping.dmp
          • memory/1720-81-0x0000000000000000-mapping.dmp
          • memory/1748-80-0x0000000000000000-mapping.dmp
          • memory/2024-61-0x0000000000000000-mapping.dmp