Analysis

  • max time kernel
    33s
  • max time network
    34s
  • platform
    windows7_x64
  • resource
    win7-20221111-en
  • resource tags

    arch:x64arch:x86image:win7-20221111-enlocale:en-usos:windows7-x64system
  • submitted
    23-11-2022 10:06

General

  • Target

    fcd9264b1b030ef1c7609260fe779c365bfda526e19002f05b7486283d439346.exe

  • Size

    603KB

  • MD5

    09e2b572927386eaa1e6e384e28c582c

  • SHA1

    da8695577c78e1e05c7cd04c5db0617cc5b72235

  • SHA256

    fcd9264b1b030ef1c7609260fe779c365bfda526e19002f05b7486283d439346

  • SHA512

    235fc542ce217cc30260b9316701da6094602ca6a20c563ea61c5fbaa4debb947aed4699e42f7226f1b869b6d645d52e4550583f9c1d992c3472a0701d16563f

  • SSDEEP

    12288:IIny5DYTmICrCNOB8eaMSnAi3gqKzzBZPPXAC:GUTmhmIpaMSB3gpPXnXA

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\fcd9264b1b030ef1c7609260fe779c365bfda526e19002f05b7486283d439346.exe
    "C:\Users\Admin\AppData\Local\Temp\fcd9264b1b030ef1c7609260fe779c365bfda526e19002f05b7486283d439346.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:1472
    • C:\Windows\SysWOW64\net.exe
      net stop nethttpservice
      2⤵
      • Suspicious use of WriteProcessMemory
      PID:320
      • C:\Windows\SysWOW64\net1.exe
        C:\Windows\system32\net1 stop nethttpservice
        3⤵
          PID:672
      • C:\Windows\SysWOW64\net.exe
        net stop serviceupdater
        2⤵
        • Suspicious use of WriteProcessMemory
        PID:1240
        • C:\Windows\SysWOW64\net1.exe
          C:\Windows\system32\net1 stop serviceupdater
          3⤵
            PID:640
        • C:\Windows\SysWOW64\installd.exe
          "C:\Windows\system32\installd.exe" nethfdrv
          2⤵
          • Executes dropped EXE
          • Loads dropped DLL
          PID:1360
        • C:\Windows\SysWOW64\nethtsrv.exe
          "C:\Windows\system32\nethtsrv.exe" -nfdi
          2⤵
          • Executes dropped EXE
          • Loads dropped DLL
          PID:1080
        • C:\Windows\SysWOW64\netupdsrv.exe
          "C:\Windows\system32\netupdsrv.exe" -nfdi
          2⤵
          • Executes dropped EXE
          PID:1776
        • C:\Windows\SysWOW64\net.exe
          net start nethttpservice
          2⤵
          • Suspicious use of WriteProcessMemory
          PID:2032
          • C:\Windows\SysWOW64\net1.exe
            C:\Windows\system32\net1 start nethttpservice
            3⤵
              PID:1996
          • C:\Windows\SysWOW64\net.exe
            net start serviceupdater
            2⤵
            • Suspicious use of WriteProcessMemory
            PID:1188
            • C:\Windows\SysWOW64\net1.exe
              C:\Windows\system32\net1 start serviceupdater
              3⤵
                PID:1920
          • C:\Windows\SysWOW64\nethtsrv.exe
            C:\Windows\SysWOW64\nethtsrv.exe
            1⤵
            • Executes dropped EXE
            • Loads dropped DLL
            • Suspicious use of AdjustPrivilegeToken
            PID:1288
          • C:\Windows\SysWOW64\netupdsrv.exe
            C:\Windows\SysWOW64\netupdsrv.exe
            1⤵
            • Executes dropped EXE
            PID:1624

          Network

          MITRE ATT&CK Enterprise v6

          Replay Monitor

          Loading Replay Monitor...

          Downloads

          • C:\Windows\SysWOW64\hfnapi.dll

            Filesize

            106KB

            MD5

            7be1a49bebbfd1377492ce9385e5cfa3

            SHA1

            56a2c888acf75daad92461c8b2e8b4327d37061b

            SHA256

            5970a8125eaf5319abe54ef8e85f1287c57c1ae36bcb0a0fa165c03c481e4fdf

            SHA512

            c20d469c65c13aebb8ce1883abc3df6537f3efad4e8aa9c3357ffc3ec6465ca059691745c6bd5355a35e2385981005c38d8420e056379ad05b1433b38a313a58

          • C:\Windows\SysWOW64\hfpapi.dll

            Filesize

            244KB

            MD5

            91c8d6370f3a2e94d8bf73403d8cf6cb

            SHA1

            57f8f603e8bc439145f3e0d99ec73c0c69282a57

            SHA256

            db5a01c0ecb0e430b7649b1a2bf37cf375aded06099bf2e75627249d0ce7142b

            SHA512

            51ee99e31a28dc8b70bf53cbde9e42fc4c89551399e06e917010f163ce939050c5b8ae582956dda182757baca1d6dcb0b3e22d428575b7383ea777a66c833adf

          • C:\Windows\SysWOW64\installd.exe

            Filesize

            108KB

            MD5

            183e0777077ddb684335570ef7afe71d

            SHA1

            b257e24798bdc4771abea35c1e84bba11c897de8

            SHA256

            5c84543be1cf6b9cc9068f14328356d7cdbc2e19cde20b28e62e07aa6deb49d9

            SHA512

            00e18f65c16cbc0d326c52211c73bc9c2712652f9f30a92db4d567f52634f7f5324b3e60b833048f0c24a4b2d1352c83873fb7665a56a59f14a99e709aa3c55d

          • C:\Windows\SysWOW64\nethtsrv.exe

            Filesize

            176KB

            MD5

            d13f4511492837899100dc1e7013742e

            SHA1

            2115d2f6ea480b1acbef498b6b3476989999a0d7

            SHA256

            db54f34074aaa9a4ea34ce7870dae67fb7a7e603aab762de234e52dffe621df1

            SHA512

            1ff8219d724da0e6ffc2707bf5183b8634fcd296e879d59c64cea95fb6f394a2098456dc16215aee33bc55f122cb7296a96843ad70eb810844f8b5bd68ecd9e7

          • C:\Windows\SysWOW64\nethtsrv.exe

            Filesize

            176KB

            MD5

            d13f4511492837899100dc1e7013742e

            SHA1

            2115d2f6ea480b1acbef498b6b3476989999a0d7

            SHA256

            db54f34074aaa9a4ea34ce7870dae67fb7a7e603aab762de234e52dffe621df1

            SHA512

            1ff8219d724da0e6ffc2707bf5183b8634fcd296e879d59c64cea95fb6f394a2098456dc16215aee33bc55f122cb7296a96843ad70eb810844f8b5bd68ecd9e7

          • C:\Windows\SysWOW64\netupdsrv.exe

            Filesize

            158KB

            MD5

            8ca07c2e4a7b6f86d9f582e1f5cef773

            SHA1

            a41ba58fecdb8faf060565937bee3881d54b3a95

            SHA256

            6d9ee5405b42eb31b5b8b7c15c568de2f124c16976cca043c652d4456903e2cd

            SHA512

            e950b5b06037549ba8aa71f30f27073eb482447b9ff1b84fbd3edc8761e3173aaad394badcbd1471e623f0836e9cbfb5790a702f94eaa77e2523beb91e7da7e5

          • C:\Windows\SysWOW64\netupdsrv.exe

            Filesize

            158KB

            MD5

            8ca07c2e4a7b6f86d9f582e1f5cef773

            SHA1

            a41ba58fecdb8faf060565937bee3881d54b3a95

            SHA256

            6d9ee5405b42eb31b5b8b7c15c568de2f124c16976cca043c652d4456903e2cd

            SHA512

            e950b5b06037549ba8aa71f30f27073eb482447b9ff1b84fbd3edc8761e3173aaad394badcbd1471e623f0836e9cbfb5790a702f94eaa77e2523beb91e7da7e5

          • \Users\Admin\AppData\Local\Temp\nsoA660.tmp\System.dll

            Filesize

            11KB

            MD5

            c17103ae9072a06da581dec998343fc1

            SHA1

            b72148c6bdfaada8b8c3f950e610ee7cf1da1f8d

            SHA256

            dc58d8ad81cacb0c1ed72e33bff8f23ea40b5252b5bb55d393a0903e6819ae2f

            SHA512

            d32a71aaef18e993f28096d536e41c4d016850721b31171513ce28bbd805a54fd290b7c3e9d935f72e676a1acfb4f0dcc89d95040a0dd29f2b6975855c18986f

          • \Users\Admin\AppData\Local\Temp\nsoA660.tmp\nsExec.dll

            Filesize

            6KB

            MD5

            acc2b699edfea5bf5aae45aba3a41e96

            SHA1

            d2accf4d494e43ceb2cff69abe4dd17147d29cc2

            SHA256

            168a974eaa3f588d759db3f47c1a9fdc3494ba1fa1a73a84e5e3b2a4d58abd7e

            SHA512

            e29ea10ada98c71a18273b04f44f385b120d4e8473e441ce5748cfa44a23648814f2656f429b85440157988c88de776c6ac008dc38bf09cbb746c230a46c69fe

          • \Users\Admin\AppData\Local\Temp\nsoA660.tmp\nsExec.dll

            Filesize

            6KB

            MD5

            acc2b699edfea5bf5aae45aba3a41e96

            SHA1

            d2accf4d494e43ceb2cff69abe4dd17147d29cc2

            SHA256

            168a974eaa3f588d759db3f47c1a9fdc3494ba1fa1a73a84e5e3b2a4d58abd7e

            SHA512

            e29ea10ada98c71a18273b04f44f385b120d4e8473e441ce5748cfa44a23648814f2656f429b85440157988c88de776c6ac008dc38bf09cbb746c230a46c69fe

          • \Users\Admin\AppData\Local\Temp\nsoA660.tmp\nsExec.dll

            Filesize

            6KB

            MD5

            acc2b699edfea5bf5aae45aba3a41e96

            SHA1

            d2accf4d494e43ceb2cff69abe4dd17147d29cc2

            SHA256

            168a974eaa3f588d759db3f47c1a9fdc3494ba1fa1a73a84e5e3b2a4d58abd7e

            SHA512

            e29ea10ada98c71a18273b04f44f385b120d4e8473e441ce5748cfa44a23648814f2656f429b85440157988c88de776c6ac008dc38bf09cbb746c230a46c69fe

          • \Users\Admin\AppData\Local\Temp\nsoA660.tmp\nsExec.dll

            Filesize

            6KB

            MD5

            acc2b699edfea5bf5aae45aba3a41e96

            SHA1

            d2accf4d494e43ceb2cff69abe4dd17147d29cc2

            SHA256

            168a974eaa3f588d759db3f47c1a9fdc3494ba1fa1a73a84e5e3b2a4d58abd7e

            SHA512

            e29ea10ada98c71a18273b04f44f385b120d4e8473e441ce5748cfa44a23648814f2656f429b85440157988c88de776c6ac008dc38bf09cbb746c230a46c69fe

          • \Windows\SysWOW64\hfnapi.dll

            Filesize

            106KB

            MD5

            7be1a49bebbfd1377492ce9385e5cfa3

            SHA1

            56a2c888acf75daad92461c8b2e8b4327d37061b

            SHA256

            5970a8125eaf5319abe54ef8e85f1287c57c1ae36bcb0a0fa165c03c481e4fdf

            SHA512

            c20d469c65c13aebb8ce1883abc3df6537f3efad4e8aa9c3357ffc3ec6465ca059691745c6bd5355a35e2385981005c38d8420e056379ad05b1433b38a313a58

          • \Windows\SysWOW64\hfnapi.dll

            Filesize

            106KB

            MD5

            7be1a49bebbfd1377492ce9385e5cfa3

            SHA1

            56a2c888acf75daad92461c8b2e8b4327d37061b

            SHA256

            5970a8125eaf5319abe54ef8e85f1287c57c1ae36bcb0a0fa165c03c481e4fdf

            SHA512

            c20d469c65c13aebb8ce1883abc3df6537f3efad4e8aa9c3357ffc3ec6465ca059691745c6bd5355a35e2385981005c38d8420e056379ad05b1433b38a313a58

          • \Windows\SysWOW64\hfnapi.dll

            Filesize

            106KB

            MD5

            7be1a49bebbfd1377492ce9385e5cfa3

            SHA1

            56a2c888acf75daad92461c8b2e8b4327d37061b

            SHA256

            5970a8125eaf5319abe54ef8e85f1287c57c1ae36bcb0a0fa165c03c481e4fdf

            SHA512

            c20d469c65c13aebb8ce1883abc3df6537f3efad4e8aa9c3357ffc3ec6465ca059691745c6bd5355a35e2385981005c38d8420e056379ad05b1433b38a313a58

          • \Windows\SysWOW64\hfpapi.dll

            Filesize

            244KB

            MD5

            91c8d6370f3a2e94d8bf73403d8cf6cb

            SHA1

            57f8f603e8bc439145f3e0d99ec73c0c69282a57

            SHA256

            db5a01c0ecb0e430b7649b1a2bf37cf375aded06099bf2e75627249d0ce7142b

            SHA512

            51ee99e31a28dc8b70bf53cbde9e42fc4c89551399e06e917010f163ce939050c5b8ae582956dda182757baca1d6dcb0b3e22d428575b7383ea777a66c833adf

          • \Windows\SysWOW64\hfpapi.dll

            Filesize

            244KB

            MD5

            91c8d6370f3a2e94d8bf73403d8cf6cb

            SHA1

            57f8f603e8bc439145f3e0d99ec73c0c69282a57

            SHA256

            db5a01c0ecb0e430b7649b1a2bf37cf375aded06099bf2e75627249d0ce7142b

            SHA512

            51ee99e31a28dc8b70bf53cbde9e42fc4c89551399e06e917010f163ce939050c5b8ae582956dda182757baca1d6dcb0b3e22d428575b7383ea777a66c833adf

          • \Windows\SysWOW64\installd.exe

            Filesize

            108KB

            MD5

            183e0777077ddb684335570ef7afe71d

            SHA1

            b257e24798bdc4771abea35c1e84bba11c897de8

            SHA256

            5c84543be1cf6b9cc9068f14328356d7cdbc2e19cde20b28e62e07aa6deb49d9

            SHA512

            00e18f65c16cbc0d326c52211c73bc9c2712652f9f30a92db4d567f52634f7f5324b3e60b833048f0c24a4b2d1352c83873fb7665a56a59f14a99e709aa3c55d

          • \Windows\SysWOW64\nethtsrv.exe

            Filesize

            176KB

            MD5

            d13f4511492837899100dc1e7013742e

            SHA1

            2115d2f6ea480b1acbef498b6b3476989999a0d7

            SHA256

            db54f34074aaa9a4ea34ce7870dae67fb7a7e603aab762de234e52dffe621df1

            SHA512

            1ff8219d724da0e6ffc2707bf5183b8634fcd296e879d59c64cea95fb6f394a2098456dc16215aee33bc55f122cb7296a96843ad70eb810844f8b5bd68ecd9e7

          • \Windows\SysWOW64\netupdsrv.exe

            Filesize

            158KB

            MD5

            8ca07c2e4a7b6f86d9f582e1f5cef773

            SHA1

            a41ba58fecdb8faf060565937bee3881d54b3a95

            SHA256

            6d9ee5405b42eb31b5b8b7c15c568de2f124c16976cca043c652d4456903e2cd

            SHA512

            e950b5b06037549ba8aa71f30f27073eb482447b9ff1b84fbd3edc8761e3173aaad394badcbd1471e623f0836e9cbfb5790a702f94eaa77e2523beb91e7da7e5

          • memory/320-57-0x0000000000000000-mapping.dmp

          • memory/640-62-0x0000000000000000-mapping.dmp

          • memory/672-58-0x0000000000000000-mapping.dmp

          • memory/1080-70-0x0000000000000000-mapping.dmp

          • memory/1188-86-0x0000000000000000-mapping.dmp

          • memory/1240-61-0x0000000000000000-mapping.dmp

          • memory/1360-64-0x0000000000000000-mapping.dmp

          • memory/1472-54-0x0000000075F21000-0x0000000075F23000-memory.dmp

            Filesize

            8KB

          • memory/1472-59-0x0000000000360000-0x00000000007BE000-memory.dmp

            Filesize

            4.4MB

          • memory/1472-90-0x0000000000360000-0x00000000007BE000-memory.dmp

            Filesize

            4.4MB

          • memory/1776-76-0x0000000000000000-mapping.dmp

          • memory/1920-87-0x0000000000000000-mapping.dmp

          • memory/1996-81-0x0000000000000000-mapping.dmp

          • memory/2032-80-0x0000000000000000-mapping.dmp