Analysis

  • max time kernel
    47s
  • max time network
    51s
  • platform
    windows7_x64
  • resource
    win7-20220901-en
  • resource tags

    arch:x64arch:x86image:win7-20220901-enlocale:en-usos:windows7-x64system
  • submitted
    23-11-2022 11:00

General

  • Target

    086355d33f66fdc411d196dfe44f58c79f7c9efa2429666d484741a7f87cfea2.exe

  • Size

    446KB

  • MD5

    9414ca5c21da08a5a1b9247dbb84835c

  • SHA1

    3c5072f4375389777e3d0e7d645a6715769d4ede

  • SHA256

    086355d33f66fdc411d196dfe44f58c79f7c9efa2429666d484741a7f87cfea2

  • SHA512

    e538d821b7c0c0d1954943166eccbf242966d52841b0b8a9c57d70cfc43ca3e30dbe53e36f8b34e1e13eef7fa921624d022b90e21dc8e016b8514904f5e7ba12

  • SSDEEP

    12288:4dtkz0HHqO36yLezALTWGLS0eQGj0U/sd:4Hm0HHqly3g0hG94

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\086355d33f66fdc411d196dfe44f58c79f7c9efa2429666d484741a7f87cfea2.exe
    "C:\Users\Admin\AppData\Local\Temp\086355d33f66fdc411d196dfe44f58c79f7c9efa2429666d484741a7f87cfea2.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:1416
    • C:\Windows\SysWOW64\net.exe
      net stop nethttpservice
      2⤵
      • Suspicious use of WriteProcessMemory
      PID:2020
      • C:\Windows\SysWOW64\net1.exe
        C:\Windows\system32\net1 stop nethttpservice
        3⤵
          PID:1912
      • C:\Windows\SysWOW64\net.exe
        net stop serviceupdater
        2⤵
        • Suspicious use of WriteProcessMemory
        PID:1464
        • C:\Windows\SysWOW64\net1.exe
          C:\Windows\system32\net1 stop serviceupdater
          3⤵
            PID:756
        • C:\Windows\SysWOW64\installd.exe
          "C:\Windows\system32\installd.exe" nethfdrv
          2⤵
          • Executes dropped EXE
          • Loads dropped DLL
          PID:1072
        • C:\Windows\SysWOW64\nethtsrv.exe
          "C:\Windows\system32\nethtsrv.exe" -nfdi
          2⤵
          • Executes dropped EXE
          • Loads dropped DLL
          PID:1140
        • C:\Windows\SysWOW64\netupdsrv.exe
          "C:\Windows\system32\netupdsrv.exe" -nfdi
          2⤵
          • Executes dropped EXE
          PID:864
        • C:\Windows\SysWOW64\net.exe
          net start nethttpservice
          2⤵
          • Suspicious use of WriteProcessMemory
          PID:928
          • C:\Windows\SysWOW64\net1.exe
            C:\Windows\system32\net1 start nethttpservice
            3⤵
              PID:1968
          • C:\Windows\SysWOW64\net.exe
            net start serviceupdater
            2⤵
            • Suspicious use of WriteProcessMemory
            PID:1120
            • C:\Windows\SysWOW64\net1.exe
              C:\Windows\system32\net1 start serviceupdater
              3⤵
                PID:1076
          • C:\Windows\SysWOW64\nethtsrv.exe
            C:\Windows\SysWOW64\nethtsrv.exe
            1⤵
            • Executes dropped EXE
            • Loads dropped DLL
            • Suspicious use of AdjustPrivilegeToken
            PID:1992
          • C:\Windows\SysWOW64\netupdsrv.exe
            C:\Windows\SysWOW64\netupdsrv.exe
            1⤵
            • Executes dropped EXE
            PID:1624

          Network

          MITRE ATT&CK Enterprise v6

          Replay Monitor

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          Downloads

          • C:\Windows\SysWOW64\hfnapi.dll

            Filesize

            106KB

            MD5

            0ad57c290c0242330126a727c3d0da7b

            SHA1

            16c5a61de8299cec728b307cd1319d1b2e618aac

            SHA256

            3df8432870dfee7b157e9749af1cae9982177cdac9ee6d882298abf23a0e2767

            SHA512

            d8f00b4716b6c4e433e955c99b692d4f5e3bf0f014fcbd19bf64700cd39c801b40c1ee98ff8d03a4030dedf592c3dbbd134726e948f1455e7fb5dea8d0aab7da

          • C:\Windows\SysWOW64\hfpapi.dll

            Filesize

            241KB

            MD5

            153a170fb38d11b1f1de41cd9132749e

            SHA1

            ff63ad8f35e94997ebe5f9c02e9b250d398f313b

            SHA256

            4714cbe2629a9acc7cb501f2366e483ef3cad5eaa2846f4f9f3c859ed39b7c67

            SHA512

            daefddd021320571bd50553388646c8f1348b7a4274cb9e5470b38593353fef63a143708a696a562e9b5f00e4468fd8958c42f828a1085426a67c717e294f4e6

          • C:\Windows\SysWOW64\installd.exe

            Filesize

            108KB

            MD5

            08161b64f6919d1374908393c9304909

            SHA1

            07bac8f81630c00a210aacf5692ccae56a47f650

            SHA256

            c37a2cb2769f537c4f498299465eceb25ac3803f0ddc174c65736f7a17039266

            SHA512

            230e49873a00ca56fd48bbc6b0c95e9c1da32c8b04cac066ccb55aeeac8eb04470f0acdf91afc3b02e3aa0931a59067e2133c5492ee0126ad818222db5e32e17

          • C:\Windows\SysWOW64\nethtsrv.exe

            Filesize

            176KB

            MD5

            35a4f867c11cc203ce3a049e1fe80834

            SHA1

            963f3a8dc90a12e7011782b96e6cc335bd87e073

            SHA256

            647866a7415817cae46ed809bdb9d1dc83654ee70cf0bebbae19839961b9d4ac

            SHA512

            c07b73eaaea2a835c381e25391d1d01a753c28244203e6c703893e85e8a32d3d6539a1973a2aedb27efb54c885fad2374a682f38e469ca5aee44821f84669519

          • C:\Windows\SysWOW64\nethtsrv.exe

            Filesize

            176KB

            MD5

            35a4f867c11cc203ce3a049e1fe80834

            SHA1

            963f3a8dc90a12e7011782b96e6cc335bd87e073

            SHA256

            647866a7415817cae46ed809bdb9d1dc83654ee70cf0bebbae19839961b9d4ac

            SHA512

            c07b73eaaea2a835c381e25391d1d01a753c28244203e6c703893e85e8a32d3d6539a1973a2aedb27efb54c885fad2374a682f38e469ca5aee44821f84669519

          • C:\Windows\SysWOW64\netupdsrv.exe

            Filesize

            159KB

            MD5

            752333359d4d6c31d08833cd1ea008cb

            SHA1

            e19d54967aeb5355c12c134c3d513005c4a7a05d

            SHA256

            ef6845fde8007b420b2f493e91dcca4bfad8838a401216941f785cf2e5382bf4

            SHA512

            a3285cc5bd931a77688254bc66ef11d6d2373f4591f69ce2637ac1f24280d26357a935076506553279db2c15550cb951076e9d04ce78e67d9db971fe41d1b165

          • C:\Windows\SysWOW64\netupdsrv.exe

            Filesize

            159KB

            MD5

            752333359d4d6c31d08833cd1ea008cb

            SHA1

            e19d54967aeb5355c12c134c3d513005c4a7a05d

            SHA256

            ef6845fde8007b420b2f493e91dcca4bfad8838a401216941f785cf2e5382bf4

            SHA512

            a3285cc5bd931a77688254bc66ef11d6d2373f4591f69ce2637ac1f24280d26357a935076506553279db2c15550cb951076e9d04ce78e67d9db971fe41d1b165

          • \Users\Admin\AppData\Local\Temp\nsi512.tmp\System.dll

            Filesize

            11KB

            MD5

            c17103ae9072a06da581dec998343fc1

            SHA1

            b72148c6bdfaada8b8c3f950e610ee7cf1da1f8d

            SHA256

            dc58d8ad81cacb0c1ed72e33bff8f23ea40b5252b5bb55d393a0903e6819ae2f

            SHA512

            d32a71aaef18e993f28096d536e41c4d016850721b31171513ce28bbd805a54fd290b7c3e9d935f72e676a1acfb4f0dcc89d95040a0dd29f2b6975855c18986f

          • \Users\Admin\AppData\Local\Temp\nsi512.tmp\nsExec.dll

            Filesize

            6KB

            MD5

            acc2b699edfea5bf5aae45aba3a41e96

            SHA1

            d2accf4d494e43ceb2cff69abe4dd17147d29cc2

            SHA256

            168a974eaa3f588d759db3f47c1a9fdc3494ba1fa1a73a84e5e3b2a4d58abd7e

            SHA512

            e29ea10ada98c71a18273b04f44f385b120d4e8473e441ce5748cfa44a23648814f2656f429b85440157988c88de776c6ac008dc38bf09cbb746c230a46c69fe

          • \Users\Admin\AppData\Local\Temp\nsi512.tmp\nsExec.dll

            Filesize

            6KB

            MD5

            acc2b699edfea5bf5aae45aba3a41e96

            SHA1

            d2accf4d494e43ceb2cff69abe4dd17147d29cc2

            SHA256

            168a974eaa3f588d759db3f47c1a9fdc3494ba1fa1a73a84e5e3b2a4d58abd7e

            SHA512

            e29ea10ada98c71a18273b04f44f385b120d4e8473e441ce5748cfa44a23648814f2656f429b85440157988c88de776c6ac008dc38bf09cbb746c230a46c69fe

          • \Users\Admin\AppData\Local\Temp\nsi512.tmp\nsExec.dll

            Filesize

            6KB

            MD5

            acc2b699edfea5bf5aae45aba3a41e96

            SHA1

            d2accf4d494e43ceb2cff69abe4dd17147d29cc2

            SHA256

            168a974eaa3f588d759db3f47c1a9fdc3494ba1fa1a73a84e5e3b2a4d58abd7e

            SHA512

            e29ea10ada98c71a18273b04f44f385b120d4e8473e441ce5748cfa44a23648814f2656f429b85440157988c88de776c6ac008dc38bf09cbb746c230a46c69fe

          • \Users\Admin\AppData\Local\Temp\nsi512.tmp\nsExec.dll

            Filesize

            6KB

            MD5

            acc2b699edfea5bf5aae45aba3a41e96

            SHA1

            d2accf4d494e43ceb2cff69abe4dd17147d29cc2

            SHA256

            168a974eaa3f588d759db3f47c1a9fdc3494ba1fa1a73a84e5e3b2a4d58abd7e

            SHA512

            e29ea10ada98c71a18273b04f44f385b120d4e8473e441ce5748cfa44a23648814f2656f429b85440157988c88de776c6ac008dc38bf09cbb746c230a46c69fe

          • \Windows\SysWOW64\hfnapi.dll

            Filesize

            106KB

            MD5

            0ad57c290c0242330126a727c3d0da7b

            SHA1

            16c5a61de8299cec728b307cd1319d1b2e618aac

            SHA256

            3df8432870dfee7b157e9749af1cae9982177cdac9ee6d882298abf23a0e2767

            SHA512

            d8f00b4716b6c4e433e955c99b692d4f5e3bf0f014fcbd19bf64700cd39c801b40c1ee98ff8d03a4030dedf592c3dbbd134726e948f1455e7fb5dea8d0aab7da

          • \Windows\SysWOW64\hfnapi.dll

            Filesize

            106KB

            MD5

            0ad57c290c0242330126a727c3d0da7b

            SHA1

            16c5a61de8299cec728b307cd1319d1b2e618aac

            SHA256

            3df8432870dfee7b157e9749af1cae9982177cdac9ee6d882298abf23a0e2767

            SHA512

            d8f00b4716b6c4e433e955c99b692d4f5e3bf0f014fcbd19bf64700cd39c801b40c1ee98ff8d03a4030dedf592c3dbbd134726e948f1455e7fb5dea8d0aab7da

          • \Windows\SysWOW64\hfnapi.dll

            Filesize

            106KB

            MD5

            0ad57c290c0242330126a727c3d0da7b

            SHA1

            16c5a61de8299cec728b307cd1319d1b2e618aac

            SHA256

            3df8432870dfee7b157e9749af1cae9982177cdac9ee6d882298abf23a0e2767

            SHA512

            d8f00b4716b6c4e433e955c99b692d4f5e3bf0f014fcbd19bf64700cd39c801b40c1ee98ff8d03a4030dedf592c3dbbd134726e948f1455e7fb5dea8d0aab7da

          • \Windows\SysWOW64\hfpapi.dll

            Filesize

            241KB

            MD5

            153a170fb38d11b1f1de41cd9132749e

            SHA1

            ff63ad8f35e94997ebe5f9c02e9b250d398f313b

            SHA256

            4714cbe2629a9acc7cb501f2366e483ef3cad5eaa2846f4f9f3c859ed39b7c67

            SHA512

            daefddd021320571bd50553388646c8f1348b7a4274cb9e5470b38593353fef63a143708a696a562e9b5f00e4468fd8958c42f828a1085426a67c717e294f4e6

          • \Windows\SysWOW64\hfpapi.dll

            Filesize

            241KB

            MD5

            153a170fb38d11b1f1de41cd9132749e

            SHA1

            ff63ad8f35e94997ebe5f9c02e9b250d398f313b

            SHA256

            4714cbe2629a9acc7cb501f2366e483ef3cad5eaa2846f4f9f3c859ed39b7c67

            SHA512

            daefddd021320571bd50553388646c8f1348b7a4274cb9e5470b38593353fef63a143708a696a562e9b5f00e4468fd8958c42f828a1085426a67c717e294f4e6

          • \Windows\SysWOW64\installd.exe

            Filesize

            108KB

            MD5

            08161b64f6919d1374908393c9304909

            SHA1

            07bac8f81630c00a210aacf5692ccae56a47f650

            SHA256

            c37a2cb2769f537c4f498299465eceb25ac3803f0ddc174c65736f7a17039266

            SHA512

            230e49873a00ca56fd48bbc6b0c95e9c1da32c8b04cac066ccb55aeeac8eb04470f0acdf91afc3b02e3aa0931a59067e2133c5492ee0126ad818222db5e32e17

          • \Windows\SysWOW64\nethtsrv.exe

            Filesize

            176KB

            MD5

            35a4f867c11cc203ce3a049e1fe80834

            SHA1

            963f3a8dc90a12e7011782b96e6cc335bd87e073

            SHA256

            647866a7415817cae46ed809bdb9d1dc83654ee70cf0bebbae19839961b9d4ac

            SHA512

            c07b73eaaea2a835c381e25391d1d01a753c28244203e6c703893e85e8a32d3d6539a1973a2aedb27efb54c885fad2374a682f38e469ca5aee44821f84669519

          • \Windows\SysWOW64\netupdsrv.exe

            Filesize

            159KB

            MD5

            752333359d4d6c31d08833cd1ea008cb

            SHA1

            e19d54967aeb5355c12c134c3d513005c4a7a05d

            SHA256

            ef6845fde8007b420b2f493e91dcca4bfad8838a401216941f785cf2e5382bf4

            SHA512

            a3285cc5bd931a77688254bc66ef11d6d2373f4591f69ce2637ac1f24280d26357a935076506553279db2c15550cb951076e9d04ce78e67d9db971fe41d1b165

          • memory/756-61-0x0000000000000000-mapping.dmp

          • memory/864-75-0x0000000000000000-mapping.dmp

          • memory/928-79-0x0000000000000000-mapping.dmp

          • memory/1072-63-0x0000000000000000-mapping.dmp

          • memory/1076-86-0x0000000000000000-mapping.dmp

          • memory/1120-85-0x0000000000000000-mapping.dmp

          • memory/1140-69-0x0000000000000000-mapping.dmp

          • memory/1416-54-0x0000000074DC1000-0x0000000074DC3000-memory.dmp

            Filesize

            8KB

          • memory/1464-60-0x0000000000000000-mapping.dmp

          • memory/1912-58-0x0000000000000000-mapping.dmp

          • memory/1968-80-0x0000000000000000-mapping.dmp

          • memory/2020-57-0x0000000000000000-mapping.dmp