Analysis

  • max time kernel
    41s
  • max time network
    45s
  • platform
    windows7_x64
  • resource
    win7-20220812-en
  • resource tags

    arch:x64arch:x86image:win7-20220812-enlocale:en-usos:windows7-x64system
  • submitted
    23-11-2022 10:33

General

  • Target

    117db8189d91f0f2e050085d003b481f77645f6c6087c8c7250c08d3ad96fd75.exe

  • Size

    603KB

  • MD5

    89e29784c137989eed4c5fb6bce454c6

  • SHA1

    904cea411b29e2da4551d3f8188c8e00e94485d2

  • SHA256

    117db8189d91f0f2e050085d003b481f77645f6c6087c8c7250c08d3ad96fd75

  • SHA512

    fc5635c05e679892e098bb4c546bdbb4f38b2003027bc6d42d91f66ce889c6e9b41b43a622bd16334ef0e8ec70737c34602b0c08074d5acfbba00ce0b5a974b9

  • SSDEEP

    12288:jIny5DYTfIz4IqvhXfc2pc3p+tEFvh8Y5bbskDtY+JxNRbTfibI:rUTfo4Iq62pc3p+tElCY58/+B1Ta0

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\117db8189d91f0f2e050085d003b481f77645f6c6087c8c7250c08d3ad96fd75.exe
    "C:\Users\Admin\AppData\Local\Temp\117db8189d91f0f2e050085d003b481f77645f6c6087c8c7250c08d3ad96fd75.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:2024
    • C:\Windows\SysWOW64\net.exe
      net stop nethttpservice
      2⤵
      • Suspicious use of WriteProcessMemory
      PID:956
      • C:\Windows\SysWOW64\net1.exe
        C:\Windows\system32\net1 stop nethttpservice
        3⤵
          PID:1632
      • C:\Windows\SysWOW64\net.exe
        net stop serviceupdater
        2⤵
        • Suspicious use of WriteProcessMemory
        PID:1596
        • C:\Windows\SysWOW64\net1.exe
          C:\Windows\system32\net1 stop serviceupdater
          3⤵
            PID:1564
        • C:\Windows\SysWOW64\installd.exe
          "C:\Windows\system32\installd.exe" nethfdrv
          2⤵
          • Executes dropped EXE
          • Loads dropped DLL
          PID:1788
        • C:\Windows\SysWOW64\nethtsrv.exe
          "C:\Windows\system32\nethtsrv.exe" -nfdi
          2⤵
          • Executes dropped EXE
          • Loads dropped DLL
          PID:1560
        • C:\Windows\SysWOW64\netupdsrv.exe
          "C:\Windows\system32\netupdsrv.exe" -nfdi
          2⤵
          • Executes dropped EXE
          PID:1688
        • C:\Windows\SysWOW64\net.exe
          net start nethttpservice
          2⤵
          • Suspicious use of WriteProcessMemory
          PID:1168
          • C:\Windows\SysWOW64\net1.exe
            C:\Windows\system32\net1 start nethttpservice
            3⤵
              PID:1156
          • C:\Windows\SysWOW64\net.exe
            net start serviceupdater
            2⤵
            • Suspicious use of WriteProcessMemory
            PID:1652
            • C:\Windows\SysWOW64\net1.exe
              C:\Windows\system32\net1 start serviceupdater
              3⤵
                PID:1004
          • C:\Windows\SysWOW64\nethtsrv.exe
            C:\Windows\SysWOW64\nethtsrv.exe
            1⤵
            • Executes dropped EXE
            • Loads dropped DLL
            • Suspicious use of AdjustPrivilegeToken
            PID:1928
          • C:\Windows\SysWOW64\netupdsrv.exe
            C:\Windows\SysWOW64\netupdsrv.exe
            1⤵
            • Executes dropped EXE
            PID:1704

          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

            879a272a452aeceb586c3b356475a0fb

            SHA1

            10feaf748ca59d6f493069bd0fc6d4d305e4d6ea

            SHA256

            480e423cf5052e65c04514c400dd31613fc368bcd2888c0ada58f12853fe5ede

            SHA512

            1ca14808cf12dc93398de41e46ce43113295ebe2d54aa063502a499cb34f43cbf68a478d56a89ec723d46e115703c48aeb7c7c7cdbcf9ec8303900c0d88b01b9

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

            244KB

            MD5

            264789a685cbe8964349ab9600471e3e

            SHA1

            3421aaeaf22e4c5af4774b79fd3e2f4e71b789cc

            SHA256

            6243c4198867d01b94725684c2efb2593d64aa61db084a817eeda38c8773c6c5

            SHA512

            eccc80bec4a702158aafd7fe9bd5cf7764467001dd77a0cbb11ba1eeb2f3473c495c7999f865bf1e64ba0511eabdedf28e445f9ed02c56d116e11d7c311c89a7

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

            108KB

            MD5

            e9db876415f67b20e6ba8d9582ae1392

            SHA1

            8a118c883761da67831998564d71f6cf8c666bd1

            SHA256

            3d4fc9c134ef5513162015026ba1d72bd8e5ffd3305b92f4bace4927d99b5319

            SHA512

            45be47361ff3055b0bde1bc34aa3a98e8392f4cb08f3d5f770997b3cf0ebf23df2140382b2285df9fffbee9b8c339e1647c1742715aa727c61d366165f07a16e

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

            176KB

            MD5

            09efe3e55806ab8cbc2fa8a2a7fe9f52

            SHA1

            e0450b6cd955ba1196acd4254f25c6cfcb489536

            SHA256

            13455584a4ad8a9e06c0515cfc3631d816b382a7f1cd53b7ca43c18bfeb4ae90

            SHA512

            f588a4d8dd3f076126a3032e5b3b89190157af424d4cc55830788516f3089ac5f6d08d476946f886eb85c2d938e32bcbc5e0d2db71bd6da7a7bcb75afc1db4fb

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

            176KB

            MD5

            09efe3e55806ab8cbc2fa8a2a7fe9f52

            SHA1

            e0450b6cd955ba1196acd4254f25c6cfcb489536

            SHA256

            13455584a4ad8a9e06c0515cfc3631d816b382a7f1cd53b7ca43c18bfeb4ae90

            SHA512

            f588a4d8dd3f076126a3032e5b3b89190157af424d4cc55830788516f3089ac5f6d08d476946f886eb85c2d938e32bcbc5e0d2db71bd6da7a7bcb75afc1db4fb

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

            158KB

            MD5

            44b871cea6964c6d5b76034ec41eb13c

            SHA1

            a6f062be49f34a2853fca5ded44ffb98230a85b5

            SHA256

            570a1323e8aa80001a7682a5938a56e2a37f7173bfd68938af6771879750288d

            SHA512

            7e8060079269d6308873e73f171690d372cd02b348fd0f86039ecf35e493fde4edf75e12c4c832a5c4c34c4db185ca755e99d4ddeabcf0ddee7dff280d8f663a

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

            158KB

            MD5

            44b871cea6964c6d5b76034ec41eb13c

            SHA1

            a6f062be49f34a2853fca5ded44ffb98230a85b5

            SHA256

            570a1323e8aa80001a7682a5938a56e2a37f7173bfd68938af6771879750288d

            SHA512

            7e8060079269d6308873e73f171690d372cd02b348fd0f86039ecf35e493fde4edf75e12c4c832a5c4c34c4db185ca755e99d4ddeabcf0ddee7dff280d8f663a

          • \Users\Admin\AppData\Local\Temp\nst41A5.tmp\System.dll
            Filesize

            11KB

            MD5

            c17103ae9072a06da581dec998343fc1

            SHA1

            b72148c6bdfaada8b8c3f950e610ee7cf1da1f8d

            SHA256

            dc58d8ad81cacb0c1ed72e33bff8f23ea40b5252b5bb55d393a0903e6819ae2f

            SHA512

            d32a71aaef18e993f28096d536e41c4d016850721b31171513ce28bbd805a54fd290b7c3e9d935f72e676a1acfb4f0dcc89d95040a0dd29f2b6975855c18986f

          • \Users\Admin\AppData\Local\Temp\nst41A5.tmp\nsExec.dll
            Filesize

            6KB

            MD5

            acc2b699edfea5bf5aae45aba3a41e96

            SHA1

            d2accf4d494e43ceb2cff69abe4dd17147d29cc2

            SHA256

            168a974eaa3f588d759db3f47c1a9fdc3494ba1fa1a73a84e5e3b2a4d58abd7e

            SHA512

            e29ea10ada98c71a18273b04f44f385b120d4e8473e441ce5748cfa44a23648814f2656f429b85440157988c88de776c6ac008dc38bf09cbb746c230a46c69fe

          • \Users\Admin\AppData\Local\Temp\nst41A5.tmp\nsExec.dll
            Filesize

            6KB

            MD5

            acc2b699edfea5bf5aae45aba3a41e96

            SHA1

            d2accf4d494e43ceb2cff69abe4dd17147d29cc2

            SHA256

            168a974eaa3f588d759db3f47c1a9fdc3494ba1fa1a73a84e5e3b2a4d58abd7e

            SHA512

            e29ea10ada98c71a18273b04f44f385b120d4e8473e441ce5748cfa44a23648814f2656f429b85440157988c88de776c6ac008dc38bf09cbb746c230a46c69fe

          • \Users\Admin\AppData\Local\Temp\nst41A5.tmp\nsExec.dll
            Filesize

            6KB

            MD5

            acc2b699edfea5bf5aae45aba3a41e96

            SHA1

            d2accf4d494e43ceb2cff69abe4dd17147d29cc2

            SHA256

            168a974eaa3f588d759db3f47c1a9fdc3494ba1fa1a73a84e5e3b2a4d58abd7e

            SHA512

            e29ea10ada98c71a18273b04f44f385b120d4e8473e441ce5748cfa44a23648814f2656f429b85440157988c88de776c6ac008dc38bf09cbb746c230a46c69fe

          • \Users\Admin\AppData\Local\Temp\nst41A5.tmp\nsExec.dll
            Filesize

            6KB

            MD5

            acc2b699edfea5bf5aae45aba3a41e96

            SHA1

            d2accf4d494e43ceb2cff69abe4dd17147d29cc2

            SHA256

            168a974eaa3f588d759db3f47c1a9fdc3494ba1fa1a73a84e5e3b2a4d58abd7e

            SHA512

            e29ea10ada98c71a18273b04f44f385b120d4e8473e441ce5748cfa44a23648814f2656f429b85440157988c88de776c6ac008dc38bf09cbb746c230a46c69fe

          • \Windows\SysWOW64\hfnapi.dll
            Filesize

            106KB

            MD5

            879a272a452aeceb586c3b356475a0fb

            SHA1

            10feaf748ca59d6f493069bd0fc6d4d305e4d6ea

            SHA256

            480e423cf5052e65c04514c400dd31613fc368bcd2888c0ada58f12853fe5ede

            SHA512

            1ca14808cf12dc93398de41e46ce43113295ebe2d54aa063502a499cb34f43cbf68a478d56a89ec723d46e115703c48aeb7c7c7cdbcf9ec8303900c0d88b01b9

          • \Windows\SysWOW64\hfnapi.dll
            Filesize

            106KB

            MD5

            879a272a452aeceb586c3b356475a0fb

            SHA1

            10feaf748ca59d6f493069bd0fc6d4d305e4d6ea

            SHA256

            480e423cf5052e65c04514c400dd31613fc368bcd2888c0ada58f12853fe5ede

            SHA512

            1ca14808cf12dc93398de41e46ce43113295ebe2d54aa063502a499cb34f43cbf68a478d56a89ec723d46e115703c48aeb7c7c7cdbcf9ec8303900c0d88b01b9

          • \Windows\SysWOW64\hfnapi.dll
            Filesize

            106KB

            MD5

            879a272a452aeceb586c3b356475a0fb

            SHA1

            10feaf748ca59d6f493069bd0fc6d4d305e4d6ea

            SHA256

            480e423cf5052e65c04514c400dd31613fc368bcd2888c0ada58f12853fe5ede

            SHA512

            1ca14808cf12dc93398de41e46ce43113295ebe2d54aa063502a499cb34f43cbf68a478d56a89ec723d46e115703c48aeb7c7c7cdbcf9ec8303900c0d88b01b9

          • \Windows\SysWOW64\hfpapi.dll
            Filesize

            244KB

            MD5

            264789a685cbe8964349ab9600471e3e

            SHA1

            3421aaeaf22e4c5af4774b79fd3e2f4e71b789cc

            SHA256

            6243c4198867d01b94725684c2efb2593d64aa61db084a817eeda38c8773c6c5

            SHA512

            eccc80bec4a702158aafd7fe9bd5cf7764467001dd77a0cbb11ba1eeb2f3473c495c7999f865bf1e64ba0511eabdedf28e445f9ed02c56d116e11d7c311c89a7

          • \Windows\SysWOW64\hfpapi.dll
            Filesize

            244KB

            MD5

            264789a685cbe8964349ab9600471e3e

            SHA1

            3421aaeaf22e4c5af4774b79fd3e2f4e71b789cc

            SHA256

            6243c4198867d01b94725684c2efb2593d64aa61db084a817eeda38c8773c6c5

            SHA512

            eccc80bec4a702158aafd7fe9bd5cf7764467001dd77a0cbb11ba1eeb2f3473c495c7999f865bf1e64ba0511eabdedf28e445f9ed02c56d116e11d7c311c89a7

          • \Windows\SysWOW64\installd.exe
            Filesize

            108KB

            MD5

            e9db876415f67b20e6ba8d9582ae1392

            SHA1

            8a118c883761da67831998564d71f6cf8c666bd1

            SHA256

            3d4fc9c134ef5513162015026ba1d72bd8e5ffd3305b92f4bace4927d99b5319

            SHA512

            45be47361ff3055b0bde1bc34aa3a98e8392f4cb08f3d5f770997b3cf0ebf23df2140382b2285df9fffbee9b8c339e1647c1742715aa727c61d366165f07a16e

          • \Windows\SysWOW64\nethtsrv.exe
            Filesize

            176KB

            MD5

            09efe3e55806ab8cbc2fa8a2a7fe9f52

            SHA1

            e0450b6cd955ba1196acd4254f25c6cfcb489536

            SHA256

            13455584a4ad8a9e06c0515cfc3631d816b382a7f1cd53b7ca43c18bfeb4ae90

            SHA512

            f588a4d8dd3f076126a3032e5b3b89190157af424d4cc55830788516f3089ac5f6d08d476946f886eb85c2d938e32bcbc5e0d2db71bd6da7a7bcb75afc1db4fb

          • \Windows\SysWOW64\netupdsrv.exe
            Filesize

            158KB

            MD5

            44b871cea6964c6d5b76034ec41eb13c

            SHA1

            a6f062be49f34a2853fca5ded44ffb98230a85b5

            SHA256

            570a1323e8aa80001a7682a5938a56e2a37f7173bfd68938af6771879750288d

            SHA512

            7e8060079269d6308873e73f171690d372cd02b348fd0f86039ecf35e493fde4edf75e12c4c832a5c4c34c4db185ca755e99d4ddeabcf0ddee7dff280d8f663a

          • memory/956-58-0x0000000000000000-mapping.dmp
          • memory/1004-87-0x0000000000000000-mapping.dmp
          • memory/1156-81-0x0000000000000000-mapping.dmp
          • memory/1168-80-0x0000000000000000-mapping.dmp
          • memory/1560-70-0x0000000000000000-mapping.dmp
          • memory/1564-62-0x0000000000000000-mapping.dmp
          • memory/1596-61-0x0000000000000000-mapping.dmp
          • memory/1632-59-0x0000000000000000-mapping.dmp
          • memory/1652-86-0x0000000000000000-mapping.dmp
          • memory/1688-76-0x0000000000000000-mapping.dmp
          • memory/1788-64-0x0000000000000000-mapping.dmp
          • memory/2024-54-0x0000000075F81000-0x0000000075F83000-memory.dmp
            Filesize

            8KB

          • memory/2024-55-0x0000000000360000-0x00000000007BE000-memory.dmp
            Filesize

            4.4MB

          • memory/2024-90-0x0000000000360000-0x00000000007BE000-memory.dmp
            Filesize

            4.4MB