Analysis

  • max time kernel
    33s
  • max time network
    47s
  • platform
    windows7_x64
  • resource
    win7-20220812-en
  • resource tags

    arch:x64arch:x86image:win7-20220812-enlocale:en-usos:windows7-x64system
  • submitted
    23-11-2022 10:13

General

  • Target

    c13da030f7af5c566a930f12cc47d0e3fb3dfd996dbbc5869e6b4e803bea3c72.exe

  • Size

    602KB

  • MD5

    5ad82fe0fbff12ed233bc588f5fbc0a0

  • SHA1

    3135ea036a2aa1157acc27d480b0c8772d6cd291

  • SHA256

    c13da030f7af5c566a930f12cc47d0e3fb3dfd996dbbc5869e6b4e803bea3c72

  • SHA512

    1b7395856de562c8e1f26c8bcfe5723322b90850761046ee781d9b2c6106a8b9a0061c83d913a2d62348523006c63b0d1f97b65ff5b98f9b29283020b524a352

  • SSDEEP

    12288:9Iny5DYTgCzzT1qtqBPQnYxF9dWi13TsXk9Xo1PwrNU:pUTg+116nYpFw0Vo1G

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\c13da030f7af5c566a930f12cc47d0e3fb3dfd996dbbc5869e6b4e803bea3c72.exe
    "C:\Users\Admin\AppData\Local\Temp\c13da030f7af5c566a930f12cc47d0e3fb3dfd996dbbc5869e6b4e803bea3c72.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:1072
    • C:\Windows\SysWOW64\net.exe
      net stop nethttpservice
      2⤵
      • Suspicious use of WriteProcessMemory
      PID:560
      • C:\Windows\SysWOW64\net1.exe
        C:\Windows\system32\net1 stop nethttpservice
        3⤵
          PID:1536
      • C:\Windows\SysWOW64\net.exe
        net stop serviceupdater
        2⤵
        • Suspicious use of WriteProcessMemory
        PID:1756
        • C:\Windows\SysWOW64\net1.exe
          C:\Windows\system32\net1 stop serviceupdater
          3⤵
            PID:1500
        • C:\Windows\SysWOW64\installd.exe
          "C:\Windows\system32\installd.exe" nethfdrv
          2⤵
          • Executes dropped EXE
          • Loads dropped DLL
          PID:1744
        • C:\Windows\SysWOW64\nethtsrv.exe
          "C:\Windows\system32\nethtsrv.exe" -nfdi
          2⤵
          • Executes dropped EXE
          • Loads dropped DLL
          PID:1616
        • C:\Windows\SysWOW64\netupdsrv.exe
          "C:\Windows\system32\netupdsrv.exe" -nfdi
          2⤵
          • Executes dropped EXE
          PID:1016
        • C:\Windows\SysWOW64\net.exe
          net start nethttpservice
          2⤵
          • Suspicious use of WriteProcessMemory
          PID:1372
          • C:\Windows\SysWOW64\net1.exe
            C:\Windows\system32\net1 start nethttpservice
            3⤵
              PID:1468
          • C:\Windows\SysWOW64\net.exe
            net start serviceupdater
            2⤵
            • Suspicious use of WriteProcessMemory
            PID:2044
            • C:\Windows\SysWOW64\net1.exe
              C:\Windows\system32\net1 start serviceupdater
              3⤵
                PID:1100
          • C:\Windows\SysWOW64\nethtsrv.exe
            C:\Windows\SysWOW64\nethtsrv.exe
            1⤵
            • Executes dropped EXE
            • Loads dropped DLL
            • Suspicious use of AdjustPrivilegeToken
            PID:472
          • C:\Windows\SysWOW64\netupdsrv.exe
            C:\Windows\SysWOW64\netupdsrv.exe
            1⤵
            • Executes dropped EXE
            PID:1464

          Network

          MITRE ATT&CK Enterprise v6

          Replay Monitor

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          Downloads

          • C:\Windows\SysWOW64\hfnapi.dll

            Filesize

            106KB

            MD5

            ddf9f0ed546cf9242c93f226c00b9571

            SHA1

            a9ecc9cc9e8d8d646cb0b831f4fb8b61834fb7cf

            SHA256

            8c86ed5275d7504fd025985294cd3ab454469f875703c500cbf5a55e9cf494b2

            SHA512

            85feb7edba7e8872cdfcdce7ce78eb73caacd8b99daa0d1917caa0177a713b01d942c9848e1c4160a4a0c7a7bc91820d390ed05878c33198d312ebc365653a05

          • C:\Windows\SysWOW64\hfpapi.dll

            Filesize

            241KB

            MD5

            fbf09616ef62746a4ccd739172516e3d

            SHA1

            634cc66c614cde2375e2369fec3ab7e7251370b7

            SHA256

            3d09b93b0630e958de6cbb413db2ba2a890523a9cf6e04bf8cfbbd9cb5348c6b

            SHA512

            ddc0f462d7fc67dac653d4b87fbcd2210b9904378bbc2940914b36bff5867422951fc9cde2d7bc73292b8fd8298ed4099671610e18c4f969735b8fe1a0ab0aa7

          • C:\Windows\SysWOW64\installd.exe

            Filesize

            108KB

            MD5

            43e4c8e8c368f94f34d86c0a715620a1

            SHA1

            a3782073635b2c589d41577b94a4a81fdd8a1352

            SHA256

            4343965b926b7da9081ba31f2c66804588b07735bd83f6c5ae80703d36c2b5b6

            SHA512

            d6dd4ff9af252f15abbcae92fde347f1efe422552af7915a8b804047c30e1df2ba0a0bf31563b30d9c1fcf625b5cf241b2d996f97fdc6310bb0ae7e5e327d1c0

          • C:\Windows\SysWOW64\nethtsrv.exe

            Filesize

            176KB

            MD5

            08415b19c2c50d9f4805d3aa494c9ae6

            SHA1

            5b94e6c6011051c5a1c2c27fe99ee2735f20f8ae

            SHA256

            7337b6ce42741a3748285630dd8058eb9cf9c5b2523faef926f5d82d38e6ae10

            SHA512

            cc61cd1e8b112518bb841c3c0848641ca132e2848985212b49a699c79618e49a2f58da653805ac9fafae04d9a2496ffe5a9042123d049e8de7b204bbce76e102

          • C:\Windows\SysWOW64\nethtsrv.exe

            Filesize

            176KB

            MD5

            08415b19c2c50d9f4805d3aa494c9ae6

            SHA1

            5b94e6c6011051c5a1c2c27fe99ee2735f20f8ae

            SHA256

            7337b6ce42741a3748285630dd8058eb9cf9c5b2523faef926f5d82d38e6ae10

            SHA512

            cc61cd1e8b112518bb841c3c0848641ca132e2848985212b49a699c79618e49a2f58da653805ac9fafae04d9a2496ffe5a9042123d049e8de7b204bbce76e102

          • C:\Windows\SysWOW64\netupdsrv.exe

            Filesize

            158KB

            MD5

            1c71cf75885de7d46d36f3f9a49bb761

            SHA1

            16625a894932715cd63e1439d9c8f9b3747d10d9

            SHA256

            32f54885c189659f8f7c04b1d5ada8c9a2a48c4189ff5e45cc5eda0ff424a99f

            SHA512

            21316636a6e7c04db3f7fdfde605c4ad793588888ccb274ec2c781eb3df04247851624ef2c8ebd6731bd7ecb95b6fd049d801bfd60058673d2901d9f330ed97c

          • C:\Windows\SysWOW64\netupdsrv.exe

            Filesize

            158KB

            MD5

            1c71cf75885de7d46d36f3f9a49bb761

            SHA1

            16625a894932715cd63e1439d9c8f9b3747d10d9

            SHA256

            32f54885c189659f8f7c04b1d5ada8c9a2a48c4189ff5e45cc5eda0ff424a99f

            SHA512

            21316636a6e7c04db3f7fdfde605c4ad793588888ccb274ec2c781eb3df04247851624ef2c8ebd6731bd7ecb95b6fd049d801bfd60058673d2901d9f330ed97c

          • \Users\Admin\AppData\Local\Temp\nsj5EF5.tmp\System.dll

            Filesize

            11KB

            MD5

            c17103ae9072a06da581dec998343fc1

            SHA1

            b72148c6bdfaada8b8c3f950e610ee7cf1da1f8d

            SHA256

            dc58d8ad81cacb0c1ed72e33bff8f23ea40b5252b5bb55d393a0903e6819ae2f

            SHA512

            d32a71aaef18e993f28096d536e41c4d016850721b31171513ce28bbd805a54fd290b7c3e9d935f72e676a1acfb4f0dcc89d95040a0dd29f2b6975855c18986f

          • \Users\Admin\AppData\Local\Temp\nsj5EF5.tmp\nsExec.dll

            Filesize

            6KB

            MD5

            acc2b699edfea5bf5aae45aba3a41e96

            SHA1

            d2accf4d494e43ceb2cff69abe4dd17147d29cc2

            SHA256

            168a974eaa3f588d759db3f47c1a9fdc3494ba1fa1a73a84e5e3b2a4d58abd7e

            SHA512

            e29ea10ada98c71a18273b04f44f385b120d4e8473e441ce5748cfa44a23648814f2656f429b85440157988c88de776c6ac008dc38bf09cbb746c230a46c69fe

          • \Users\Admin\AppData\Local\Temp\nsj5EF5.tmp\nsExec.dll

            Filesize

            6KB

            MD5

            acc2b699edfea5bf5aae45aba3a41e96

            SHA1

            d2accf4d494e43ceb2cff69abe4dd17147d29cc2

            SHA256

            168a974eaa3f588d759db3f47c1a9fdc3494ba1fa1a73a84e5e3b2a4d58abd7e

            SHA512

            e29ea10ada98c71a18273b04f44f385b120d4e8473e441ce5748cfa44a23648814f2656f429b85440157988c88de776c6ac008dc38bf09cbb746c230a46c69fe

          • \Users\Admin\AppData\Local\Temp\nsj5EF5.tmp\nsExec.dll

            Filesize

            6KB

            MD5

            acc2b699edfea5bf5aae45aba3a41e96

            SHA1

            d2accf4d494e43ceb2cff69abe4dd17147d29cc2

            SHA256

            168a974eaa3f588d759db3f47c1a9fdc3494ba1fa1a73a84e5e3b2a4d58abd7e

            SHA512

            e29ea10ada98c71a18273b04f44f385b120d4e8473e441ce5748cfa44a23648814f2656f429b85440157988c88de776c6ac008dc38bf09cbb746c230a46c69fe

          • \Users\Admin\AppData\Local\Temp\nsj5EF5.tmp\nsExec.dll

            Filesize

            6KB

            MD5

            acc2b699edfea5bf5aae45aba3a41e96

            SHA1

            d2accf4d494e43ceb2cff69abe4dd17147d29cc2

            SHA256

            168a974eaa3f588d759db3f47c1a9fdc3494ba1fa1a73a84e5e3b2a4d58abd7e

            SHA512

            e29ea10ada98c71a18273b04f44f385b120d4e8473e441ce5748cfa44a23648814f2656f429b85440157988c88de776c6ac008dc38bf09cbb746c230a46c69fe

          • \Windows\SysWOW64\hfnapi.dll

            Filesize

            106KB

            MD5

            ddf9f0ed546cf9242c93f226c00b9571

            SHA1

            a9ecc9cc9e8d8d646cb0b831f4fb8b61834fb7cf

            SHA256

            8c86ed5275d7504fd025985294cd3ab454469f875703c500cbf5a55e9cf494b2

            SHA512

            85feb7edba7e8872cdfcdce7ce78eb73caacd8b99daa0d1917caa0177a713b01d942c9848e1c4160a4a0c7a7bc91820d390ed05878c33198d312ebc365653a05

          • \Windows\SysWOW64\hfnapi.dll

            Filesize

            106KB

            MD5

            ddf9f0ed546cf9242c93f226c00b9571

            SHA1

            a9ecc9cc9e8d8d646cb0b831f4fb8b61834fb7cf

            SHA256

            8c86ed5275d7504fd025985294cd3ab454469f875703c500cbf5a55e9cf494b2

            SHA512

            85feb7edba7e8872cdfcdce7ce78eb73caacd8b99daa0d1917caa0177a713b01d942c9848e1c4160a4a0c7a7bc91820d390ed05878c33198d312ebc365653a05

          • \Windows\SysWOW64\hfnapi.dll

            Filesize

            106KB

            MD5

            ddf9f0ed546cf9242c93f226c00b9571

            SHA1

            a9ecc9cc9e8d8d646cb0b831f4fb8b61834fb7cf

            SHA256

            8c86ed5275d7504fd025985294cd3ab454469f875703c500cbf5a55e9cf494b2

            SHA512

            85feb7edba7e8872cdfcdce7ce78eb73caacd8b99daa0d1917caa0177a713b01d942c9848e1c4160a4a0c7a7bc91820d390ed05878c33198d312ebc365653a05

          • \Windows\SysWOW64\hfpapi.dll

            Filesize

            241KB

            MD5

            fbf09616ef62746a4ccd739172516e3d

            SHA1

            634cc66c614cde2375e2369fec3ab7e7251370b7

            SHA256

            3d09b93b0630e958de6cbb413db2ba2a890523a9cf6e04bf8cfbbd9cb5348c6b

            SHA512

            ddc0f462d7fc67dac653d4b87fbcd2210b9904378bbc2940914b36bff5867422951fc9cde2d7bc73292b8fd8298ed4099671610e18c4f969735b8fe1a0ab0aa7

          • \Windows\SysWOW64\hfpapi.dll

            Filesize

            241KB

            MD5

            fbf09616ef62746a4ccd739172516e3d

            SHA1

            634cc66c614cde2375e2369fec3ab7e7251370b7

            SHA256

            3d09b93b0630e958de6cbb413db2ba2a890523a9cf6e04bf8cfbbd9cb5348c6b

            SHA512

            ddc0f462d7fc67dac653d4b87fbcd2210b9904378bbc2940914b36bff5867422951fc9cde2d7bc73292b8fd8298ed4099671610e18c4f969735b8fe1a0ab0aa7

          • \Windows\SysWOW64\installd.exe

            Filesize

            108KB

            MD5

            43e4c8e8c368f94f34d86c0a715620a1

            SHA1

            a3782073635b2c589d41577b94a4a81fdd8a1352

            SHA256

            4343965b926b7da9081ba31f2c66804588b07735bd83f6c5ae80703d36c2b5b6

            SHA512

            d6dd4ff9af252f15abbcae92fde347f1efe422552af7915a8b804047c30e1df2ba0a0bf31563b30d9c1fcf625b5cf241b2d996f97fdc6310bb0ae7e5e327d1c0

          • \Windows\SysWOW64\nethtsrv.exe

            Filesize

            176KB

            MD5

            08415b19c2c50d9f4805d3aa494c9ae6

            SHA1

            5b94e6c6011051c5a1c2c27fe99ee2735f20f8ae

            SHA256

            7337b6ce42741a3748285630dd8058eb9cf9c5b2523faef926f5d82d38e6ae10

            SHA512

            cc61cd1e8b112518bb841c3c0848641ca132e2848985212b49a699c79618e49a2f58da653805ac9fafae04d9a2496ffe5a9042123d049e8de7b204bbce76e102

          • \Windows\SysWOW64\netupdsrv.exe

            Filesize

            158KB

            MD5

            1c71cf75885de7d46d36f3f9a49bb761

            SHA1

            16625a894932715cd63e1439d9c8f9b3747d10d9

            SHA256

            32f54885c189659f8f7c04b1d5ada8c9a2a48c4189ff5e45cc5eda0ff424a99f

            SHA512

            21316636a6e7c04db3f7fdfde605c4ad793588888ccb274ec2c781eb3df04247851624ef2c8ebd6731bd7ecb95b6fd049d801bfd60058673d2901d9f330ed97c

          • memory/560-58-0x0000000000000000-mapping.dmp

          • memory/1016-76-0x0000000000000000-mapping.dmp

          • memory/1072-54-0x0000000075A81000-0x0000000075A83000-memory.dmp

            Filesize

            8KB

          • memory/1072-90-0x0000000000360000-0x00000000007BE000-memory.dmp

            Filesize

            4.4MB

          • memory/1072-55-0x0000000000360000-0x00000000007BE000-memory.dmp

            Filesize

            4.4MB

          • memory/1100-87-0x0000000000000000-mapping.dmp

          • memory/1372-80-0x0000000000000000-mapping.dmp

          • memory/1468-81-0x0000000000000000-mapping.dmp

          • memory/1500-62-0x0000000000000000-mapping.dmp

          • memory/1536-59-0x0000000000000000-mapping.dmp

          • memory/1616-70-0x0000000000000000-mapping.dmp

          • memory/1744-64-0x0000000000000000-mapping.dmp

          • memory/1756-61-0x0000000000000000-mapping.dmp

          • memory/2044-86-0x0000000000000000-mapping.dmp