Analysis

  • max time kernel
    43s
  • max time network
    46s
  • platform
    windows7_x64
  • resource
    win7-20220812-en
  • resource tags

    arch:x64arch:x86image:win7-20220812-enlocale:en-usos:windows7-x64system
  • submitted
    23-11-2022 10:15

General

  • Target

    afe69d20b9f256c8638c65777e96d9234639c17fe2b61d522e2c1220038c40c8.exe

  • Size

    602KB

  • MD5

    37901dbc800908e54e09f30e5c3e62b8

  • SHA1

    5bab22b269cf2e0a22a1c3b76572294ef0123ca0

  • SHA256

    afe69d20b9f256c8638c65777e96d9234639c17fe2b61d522e2c1220038c40c8

  • SHA512

    bb69d9e61c557875841013663c710eae721e4c5ab5926c9a4a7d9e173b41a35b9ec0b46b631077a62fe5899afabb5edcf2b97f38d4e617d5cb5173bc06ddd06f

  • SSDEEP

    12288:dIny5DYT/pW2bmxkwOX+0PaRwzZ2Y54GLXhozVhqTr8lgDG8E:JUT/pW2IOOyaFPGLXhrT0X

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\afe69d20b9f256c8638c65777e96d9234639c17fe2b61d522e2c1220038c40c8.exe
    "C:\Users\Admin\AppData\Local\Temp\afe69d20b9f256c8638c65777e96d9234639c17fe2b61d522e2c1220038c40c8.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:1788
    • C:\Windows\SysWOW64\net.exe
      net stop nethttpservice
      2⤵
      • Suspicious use of WriteProcessMemory
      PID:1628
      • C:\Windows\SysWOW64\net1.exe
        C:\Windows\system32\net1 stop nethttpservice
        3⤵
          PID:1092
      • C:\Windows\SysWOW64\net.exe
        net stop serviceupdater
        2⤵
        • Suspicious use of WriteProcessMemory
        PID:1532
        • C:\Windows\SysWOW64\net1.exe
          C:\Windows\system32\net1 stop serviceupdater
          3⤵
            PID:1528
        • C:\Windows\SysWOW64\installd.exe
          "C:\Windows\system32\installd.exe" nethfdrv
          2⤵
          • Executes dropped EXE
          • Loads dropped DLL
          PID:1304
        • C:\Windows\SysWOW64\nethtsrv.exe
          "C:\Windows\system32\nethtsrv.exe" -nfdi
          2⤵
          • Executes dropped EXE
          • Loads dropped DLL
          PID:1684
        • 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:1056
          • C:\Windows\SysWOW64\net1.exe
            C:\Windows\system32\net1 start nethttpservice
            3⤵
              PID:1124
          • C:\Windows\SysWOW64\net.exe
            net start serviceupdater
            2⤵
            • Suspicious use of WriteProcessMemory
            PID:584
            • C:\Windows\SysWOW64\net1.exe
              C:\Windows\system32\net1 start serviceupdater
              3⤵
                PID:860
          • C:\Windows\SysWOW64\nethtsrv.exe
            C:\Windows\SysWOW64\nethtsrv.exe
            1⤵
            • Executes dropped EXE
            • Loads dropped DLL
            • Suspicious use of AdjustPrivilegeToken
            PID:1696
          • C:\Windows\SysWOW64\netupdsrv.exe
            C:\Windows\SysWOW64\netupdsrv.exe
            1⤵
            • Executes dropped EXE
            PID:1136

          Network

          MITRE ATT&CK Enterprise v6

          Replay Monitor

          Loading Replay Monitor...

          Downloads

          • C:\Windows\SysWOW64\hfnapi.dll

            Filesize

            106KB

            MD5

            78f69e815d47d1179aefcf979e4fc117

            SHA1

            890586177a784434d2c252bed6550107dd93435c

            SHA256

            8ace89a6b07eb1b6116d16f8f59c1dcb6e974d79a5db440d4b387e9549bbd70e

            SHA512

            19f67d05a03ecea5c2157d56c465404f16a88c1ecb4ad6c4d8ecc6a805c5a07873a30ef66aad05a016d724e349b995910d7cee419d1f8cccd6cbe8797db86e24

          • C:\Windows\SysWOW64\hfpapi.dll

            Filesize

            244KB

            MD5

            184aeaa6e68d4105cf5795ef649d7d9c

            SHA1

            6a82626db904578a3fc689b9317244d7afe99efc

            SHA256

            b71a5c05ec4dd90a23881045d6f8a6f9ac0d1313c2067cabd47b761c1d2f6db4

            SHA512

            aab55402c159566b28e6dd9246af96ace67199efab27325048caf0f2f012625bfc9c4c8605722954279e9f6dabcf28a0777a78d61a2d0cbdac012b9028505b35

          • C:\Windows\SysWOW64\installd.exe

            Filesize

            108KB

            MD5

            d6635c04cd20b29c480a7d4c24b0f500

            SHA1

            a31ab464afe84147f5e37cb8e034c8093423e8e5

            SHA256

            e43f1576323c3683bcb3e1658d7c1e2ab6a5521239937eea9f4302985da93d51

            SHA512

            17b6f889d048b5842e616e07d33850514b7484b87adddc3c3097252e266978f0df8870bacadb817aea943b045e7a6863f3bc59736b39c7a256e2fea3e0259909

          • C:\Windows\SysWOW64\nethtsrv.exe

            Filesize

            176KB

            MD5

            fbc0de50b613d3af7cc0228603212aac

            SHA1

            dc132aa46dcc83fbbdc5ad493b29e2262740f0b7

            SHA256

            3491e2516853c1d385e2378f54ed78f99565d268aa86846c3e1aa3aecbc152fa

            SHA512

            7cc4e5d19503ad24f5d96d5513fccfa30b465c7dda4194c39b25ec8e86617ba34c8bc7be0abad385701f4a85c03da69a1b6c0c462b6abdce6af85d5cc6a4258f

          • C:\Windows\SysWOW64\nethtsrv.exe

            Filesize

            176KB

            MD5

            fbc0de50b613d3af7cc0228603212aac

            SHA1

            dc132aa46dcc83fbbdc5ad493b29e2262740f0b7

            SHA256

            3491e2516853c1d385e2378f54ed78f99565d268aa86846c3e1aa3aecbc152fa

            SHA512

            7cc4e5d19503ad24f5d96d5513fccfa30b465c7dda4194c39b25ec8e86617ba34c8bc7be0abad385701f4a85c03da69a1b6c0c462b6abdce6af85d5cc6a4258f

          • C:\Windows\SysWOW64\netupdsrv.exe

            Filesize

            158KB

            MD5

            c71c8b0dedabee48237aecdbcbf5633a

            SHA1

            95d2b73c1e0966eb1b1ec6f8d126e019b92d4352

            SHA256

            3788b4000b133f3cbe6456700c1dd0c7c816b557d912cde04fa9c012346d6bc2

            SHA512

            1e3ff706d6dfd2d25d15eda6aa1b791ec3db116465395d76ae4214abfddbcee4302bc9d741f189ed9a035de5317fa384ecc3c027818884c9282ce75c45e90ed1

          • C:\Windows\SysWOW64\netupdsrv.exe

            Filesize

            158KB

            MD5

            c71c8b0dedabee48237aecdbcbf5633a

            SHA1

            95d2b73c1e0966eb1b1ec6f8d126e019b92d4352

            SHA256

            3788b4000b133f3cbe6456700c1dd0c7c816b557d912cde04fa9c012346d6bc2

            SHA512

            1e3ff706d6dfd2d25d15eda6aa1b791ec3db116465395d76ae4214abfddbcee4302bc9d741f189ed9a035de5317fa384ecc3c027818884c9282ce75c45e90ed1

          • \Users\Admin\AppData\Local\Temp\nsdE36F.tmp\System.dll

            Filesize

            11KB

            MD5

            c17103ae9072a06da581dec998343fc1

            SHA1

            b72148c6bdfaada8b8c3f950e610ee7cf1da1f8d

            SHA256

            dc58d8ad81cacb0c1ed72e33bff8f23ea40b5252b5bb55d393a0903e6819ae2f

            SHA512

            d32a71aaef18e993f28096d536e41c4d016850721b31171513ce28bbd805a54fd290b7c3e9d935f72e676a1acfb4f0dcc89d95040a0dd29f2b6975855c18986f

          • \Users\Admin\AppData\Local\Temp\nsdE36F.tmp\nsExec.dll

            Filesize

            6KB

            MD5

            acc2b699edfea5bf5aae45aba3a41e96

            SHA1

            d2accf4d494e43ceb2cff69abe4dd17147d29cc2

            SHA256

            168a974eaa3f588d759db3f47c1a9fdc3494ba1fa1a73a84e5e3b2a4d58abd7e

            SHA512

            e29ea10ada98c71a18273b04f44f385b120d4e8473e441ce5748cfa44a23648814f2656f429b85440157988c88de776c6ac008dc38bf09cbb746c230a46c69fe

          • \Users\Admin\AppData\Local\Temp\nsdE36F.tmp\nsExec.dll

            Filesize

            6KB

            MD5

            acc2b699edfea5bf5aae45aba3a41e96

            SHA1

            d2accf4d494e43ceb2cff69abe4dd17147d29cc2

            SHA256

            168a974eaa3f588d759db3f47c1a9fdc3494ba1fa1a73a84e5e3b2a4d58abd7e

            SHA512

            e29ea10ada98c71a18273b04f44f385b120d4e8473e441ce5748cfa44a23648814f2656f429b85440157988c88de776c6ac008dc38bf09cbb746c230a46c69fe

          • \Users\Admin\AppData\Local\Temp\nsdE36F.tmp\nsExec.dll

            Filesize

            6KB

            MD5

            acc2b699edfea5bf5aae45aba3a41e96

            SHA1

            d2accf4d494e43ceb2cff69abe4dd17147d29cc2

            SHA256

            168a974eaa3f588d759db3f47c1a9fdc3494ba1fa1a73a84e5e3b2a4d58abd7e

            SHA512

            e29ea10ada98c71a18273b04f44f385b120d4e8473e441ce5748cfa44a23648814f2656f429b85440157988c88de776c6ac008dc38bf09cbb746c230a46c69fe

          • \Users\Admin\AppData\Local\Temp\nsdE36F.tmp\nsExec.dll

            Filesize

            6KB

            MD5

            acc2b699edfea5bf5aae45aba3a41e96

            SHA1

            d2accf4d494e43ceb2cff69abe4dd17147d29cc2

            SHA256

            168a974eaa3f588d759db3f47c1a9fdc3494ba1fa1a73a84e5e3b2a4d58abd7e

            SHA512

            e29ea10ada98c71a18273b04f44f385b120d4e8473e441ce5748cfa44a23648814f2656f429b85440157988c88de776c6ac008dc38bf09cbb746c230a46c69fe

          • \Windows\SysWOW64\hfnapi.dll

            Filesize

            106KB

            MD5

            78f69e815d47d1179aefcf979e4fc117

            SHA1

            890586177a784434d2c252bed6550107dd93435c

            SHA256

            8ace89a6b07eb1b6116d16f8f59c1dcb6e974d79a5db440d4b387e9549bbd70e

            SHA512

            19f67d05a03ecea5c2157d56c465404f16a88c1ecb4ad6c4d8ecc6a805c5a07873a30ef66aad05a016d724e349b995910d7cee419d1f8cccd6cbe8797db86e24

          • \Windows\SysWOW64\hfnapi.dll

            Filesize

            106KB

            MD5

            78f69e815d47d1179aefcf979e4fc117

            SHA1

            890586177a784434d2c252bed6550107dd93435c

            SHA256

            8ace89a6b07eb1b6116d16f8f59c1dcb6e974d79a5db440d4b387e9549bbd70e

            SHA512

            19f67d05a03ecea5c2157d56c465404f16a88c1ecb4ad6c4d8ecc6a805c5a07873a30ef66aad05a016d724e349b995910d7cee419d1f8cccd6cbe8797db86e24

          • \Windows\SysWOW64\hfnapi.dll

            Filesize

            106KB

            MD5

            78f69e815d47d1179aefcf979e4fc117

            SHA1

            890586177a784434d2c252bed6550107dd93435c

            SHA256

            8ace89a6b07eb1b6116d16f8f59c1dcb6e974d79a5db440d4b387e9549bbd70e

            SHA512

            19f67d05a03ecea5c2157d56c465404f16a88c1ecb4ad6c4d8ecc6a805c5a07873a30ef66aad05a016d724e349b995910d7cee419d1f8cccd6cbe8797db86e24

          • \Windows\SysWOW64\hfpapi.dll

            Filesize

            244KB

            MD5

            184aeaa6e68d4105cf5795ef649d7d9c

            SHA1

            6a82626db904578a3fc689b9317244d7afe99efc

            SHA256

            b71a5c05ec4dd90a23881045d6f8a6f9ac0d1313c2067cabd47b761c1d2f6db4

            SHA512

            aab55402c159566b28e6dd9246af96ace67199efab27325048caf0f2f012625bfc9c4c8605722954279e9f6dabcf28a0777a78d61a2d0cbdac012b9028505b35

          • \Windows\SysWOW64\hfpapi.dll

            Filesize

            244KB

            MD5

            184aeaa6e68d4105cf5795ef649d7d9c

            SHA1

            6a82626db904578a3fc689b9317244d7afe99efc

            SHA256

            b71a5c05ec4dd90a23881045d6f8a6f9ac0d1313c2067cabd47b761c1d2f6db4

            SHA512

            aab55402c159566b28e6dd9246af96ace67199efab27325048caf0f2f012625bfc9c4c8605722954279e9f6dabcf28a0777a78d61a2d0cbdac012b9028505b35

          • \Windows\SysWOW64\installd.exe

            Filesize

            108KB

            MD5

            d6635c04cd20b29c480a7d4c24b0f500

            SHA1

            a31ab464afe84147f5e37cb8e034c8093423e8e5

            SHA256

            e43f1576323c3683bcb3e1658d7c1e2ab6a5521239937eea9f4302985da93d51

            SHA512

            17b6f889d048b5842e616e07d33850514b7484b87adddc3c3097252e266978f0df8870bacadb817aea943b045e7a6863f3bc59736b39c7a256e2fea3e0259909

          • \Windows\SysWOW64\nethtsrv.exe

            Filesize

            176KB

            MD5

            fbc0de50b613d3af7cc0228603212aac

            SHA1

            dc132aa46dcc83fbbdc5ad493b29e2262740f0b7

            SHA256

            3491e2516853c1d385e2378f54ed78f99565d268aa86846c3e1aa3aecbc152fa

            SHA512

            7cc4e5d19503ad24f5d96d5513fccfa30b465c7dda4194c39b25ec8e86617ba34c8bc7be0abad385701f4a85c03da69a1b6c0c462b6abdce6af85d5cc6a4258f

          • \Windows\SysWOW64\netupdsrv.exe

            Filesize

            158KB

            MD5

            c71c8b0dedabee48237aecdbcbf5633a

            SHA1

            95d2b73c1e0966eb1b1ec6f8d126e019b92d4352

            SHA256

            3788b4000b133f3cbe6456700c1dd0c7c816b557d912cde04fa9c012346d6bc2

            SHA512

            1e3ff706d6dfd2d25d15eda6aa1b791ec3db116465395d76ae4214abfddbcee4302bc9d741f189ed9a035de5317fa384ecc3c027818884c9282ce75c45e90ed1

          • memory/584-86-0x0000000000000000-mapping.dmp

          • memory/860-87-0x0000000000000000-mapping.dmp

          • memory/868-76-0x0000000000000000-mapping.dmp

          • memory/1056-80-0x0000000000000000-mapping.dmp

          • memory/1092-58-0x0000000000000000-mapping.dmp

          • memory/1124-81-0x0000000000000000-mapping.dmp

          • memory/1304-64-0x0000000000000000-mapping.dmp

          • memory/1528-62-0x0000000000000000-mapping.dmp

          • memory/1532-61-0x0000000000000000-mapping.dmp

          • memory/1628-57-0x0000000000000000-mapping.dmp

          • memory/1684-70-0x0000000000000000-mapping.dmp

          • memory/1788-54-0x00000000761F1000-0x00000000761F3000-memory.dmp

            Filesize

            8KB

          • memory/1788-59-0x0000000000360000-0x00000000007BE000-memory.dmp

            Filesize

            4.4MB

          • memory/1788-90-0x0000000000360000-0x00000000007BE000-memory.dmp

            Filesize

            4.4MB