Analysis

  • max time kernel
    135s
  • max time network
    154s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20220812-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20220812-enlocale:en-usos:windows10-2004-x64system
  • submitted
    23-11-2022 10:50

General

  • Target

    f28777e3e28878bae5b3340771a3e6afdc344a87b69351cd4482d24734235488.exe

  • Size

    447KB

  • MD5

    1fd075d9c181cd60503133afd6fc1074

  • SHA1

    5d1fd26f65137ff87baf0405f63b7de2641268cb

  • SHA256

    f28777e3e28878bae5b3340771a3e6afdc344a87b69351cd4482d24734235488

  • SHA512

    32c253cca1a377a0f1ea31b406654985e4c585ae470012264d3a2bae5686c1b21e3fe47b1e30f1370a6ee35887698caaccadd2b2f64ce655c1860f40d0027d3b

  • SSDEEP

    12288:LEYkDbup4feoRvfuD0fphdwQRTPCbxSWg1eHQL60ab:LvIjPvPNwQRTPT1uQ6

Score
8/10

Malware Config

Signatures

  • Drops file in Drivers directory 1 IoCs
  • Executes dropped EXE 5 IoCs
  • Loads dropped DLL 14 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.

  • Modifies data under HKEY_USERS 1 IoCs
  • Runs net.exe
  • Suspicious behavior: LoadsDriver 1 IoCs
  • Suspicious use of AdjustPrivilegeToken 1 IoCs
  • Suspicious use of WriteProcessMemory 33 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\f28777e3e28878bae5b3340771a3e6afdc344a87b69351cd4482d24734235488.exe
    "C:\Users\Admin\AppData\Local\Temp\f28777e3e28878bae5b3340771a3e6afdc344a87b69351cd4482d24734235488.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:2008
    • C:\Windows\SysWOW64\net.exe
      net stop nethttpservice
      2⤵
      • Suspicious use of WriteProcessMemory
      PID:2700
      • C:\Windows\SysWOW64\net1.exe
        C:\Windows\system32\net1 stop nethttpservice
        3⤵
          PID:1576
      • C:\Windows\SysWOW64\net.exe
        net stop serviceupdater
        2⤵
        • Suspicious use of WriteProcessMemory
        PID:1136
        • C:\Windows\SysWOW64\net1.exe
          C:\Windows\system32\net1 stop serviceupdater
          3⤵
            PID:5032
        • C:\Windows\SysWOW64\installd.exe
          "C:\Windows\system32\installd.exe" nethfdrv
          2⤵
          • Executes dropped EXE
          • Loads dropped DLL
          PID:3360
        • C:\Windows\SysWOW64\nethtsrv.exe
          "C:\Windows\system32\nethtsrv.exe" -nfdi
          2⤵
          • Executes dropped EXE
          • Loads dropped DLL
          PID:3140
        • C:\Windows\SysWOW64\netupdsrv.exe
          "C:\Windows\system32\netupdsrv.exe" -nfdi
          2⤵
          • Executes dropped EXE
          PID:1104
        • C:\Windows\SysWOW64\net.exe
          net start nethttpservice
          2⤵
          • Suspicious use of WriteProcessMemory
          PID:1852
          • C:\Windows\SysWOW64\net1.exe
            C:\Windows\system32\net1 start nethttpservice
            3⤵
              PID:1052
          • C:\Windows\SysWOW64\net.exe
            net start serviceupdater
            2⤵
            • Suspicious use of WriteProcessMemory
            PID:344
            • C:\Windows\SysWOW64\net1.exe
              C:\Windows\system32\net1 start serviceupdater
              3⤵
                PID:2376
          • C:\Windows\SysWOW64\nethtsrv.exe
            C:\Windows\SysWOW64\nethtsrv.exe
            1⤵
            • Executes dropped EXE
            • Loads dropped DLL
            • Modifies data under HKEY_USERS
            • Suspicious use of AdjustPrivilegeToken
            PID:552
          • C:\Windows\SysWOW64\netupdsrv.exe
            C:\Windows\SysWOW64\netupdsrv.exe
            1⤵
            • Executes dropped EXE
            PID:3512

          Network

          MITRE ATT&CK Enterprise v6

          Replay Monitor

          Loading Replay Monitor...

          Downloads

          • C:\Users\Admin\AppData\Local\Temp\nseD299.tmp\System.dll

            Filesize

            11KB

            MD5

            c17103ae9072a06da581dec998343fc1

            SHA1

            b72148c6bdfaada8b8c3f950e610ee7cf1da1f8d

            SHA256

            dc58d8ad81cacb0c1ed72e33bff8f23ea40b5252b5bb55d393a0903e6819ae2f

            SHA512

            d32a71aaef18e993f28096d536e41c4d016850721b31171513ce28bbd805a54fd290b7c3e9d935f72e676a1acfb4f0dcc89d95040a0dd29f2b6975855c18986f

          • C:\Users\Admin\AppData\Local\Temp\nseD299.tmp\nsExec.dll

            Filesize

            6KB

            MD5

            acc2b699edfea5bf5aae45aba3a41e96

            SHA1

            d2accf4d494e43ceb2cff69abe4dd17147d29cc2

            SHA256

            168a974eaa3f588d759db3f47c1a9fdc3494ba1fa1a73a84e5e3b2a4d58abd7e

            SHA512

            e29ea10ada98c71a18273b04f44f385b120d4e8473e441ce5748cfa44a23648814f2656f429b85440157988c88de776c6ac008dc38bf09cbb746c230a46c69fe

          • C:\Users\Admin\AppData\Local\Temp\nseD299.tmp\nsExec.dll

            Filesize

            6KB

            MD5

            acc2b699edfea5bf5aae45aba3a41e96

            SHA1

            d2accf4d494e43ceb2cff69abe4dd17147d29cc2

            SHA256

            168a974eaa3f588d759db3f47c1a9fdc3494ba1fa1a73a84e5e3b2a4d58abd7e

            SHA512

            e29ea10ada98c71a18273b04f44f385b120d4e8473e441ce5748cfa44a23648814f2656f429b85440157988c88de776c6ac008dc38bf09cbb746c230a46c69fe

          • C:\Users\Admin\AppData\Local\Temp\nseD299.tmp\nsExec.dll

            Filesize

            6KB

            MD5

            acc2b699edfea5bf5aae45aba3a41e96

            SHA1

            d2accf4d494e43ceb2cff69abe4dd17147d29cc2

            SHA256

            168a974eaa3f588d759db3f47c1a9fdc3494ba1fa1a73a84e5e3b2a4d58abd7e

            SHA512

            e29ea10ada98c71a18273b04f44f385b120d4e8473e441ce5748cfa44a23648814f2656f429b85440157988c88de776c6ac008dc38bf09cbb746c230a46c69fe

          • C:\Users\Admin\AppData\Local\Temp\nseD299.tmp\nsExec.dll

            Filesize

            6KB

            MD5

            acc2b699edfea5bf5aae45aba3a41e96

            SHA1

            d2accf4d494e43ceb2cff69abe4dd17147d29cc2

            SHA256

            168a974eaa3f588d759db3f47c1a9fdc3494ba1fa1a73a84e5e3b2a4d58abd7e

            SHA512

            e29ea10ada98c71a18273b04f44f385b120d4e8473e441ce5748cfa44a23648814f2656f429b85440157988c88de776c6ac008dc38bf09cbb746c230a46c69fe

          • C:\Users\Admin\AppData\Local\Temp\nseD299.tmp\nsExec.dll

            Filesize

            6KB

            MD5

            acc2b699edfea5bf5aae45aba3a41e96

            SHA1

            d2accf4d494e43ceb2cff69abe4dd17147d29cc2

            SHA256

            168a974eaa3f588d759db3f47c1a9fdc3494ba1fa1a73a84e5e3b2a4d58abd7e

            SHA512

            e29ea10ada98c71a18273b04f44f385b120d4e8473e441ce5748cfa44a23648814f2656f429b85440157988c88de776c6ac008dc38bf09cbb746c230a46c69fe

          • C:\Users\Admin\AppData\Local\Temp\nseD299.tmp\nsExec.dll

            Filesize

            6KB

            MD5

            acc2b699edfea5bf5aae45aba3a41e96

            SHA1

            d2accf4d494e43ceb2cff69abe4dd17147d29cc2

            SHA256

            168a974eaa3f588d759db3f47c1a9fdc3494ba1fa1a73a84e5e3b2a4d58abd7e

            SHA512

            e29ea10ada98c71a18273b04f44f385b120d4e8473e441ce5748cfa44a23648814f2656f429b85440157988c88de776c6ac008dc38bf09cbb746c230a46c69fe

          • C:\Users\Admin\AppData\Local\Temp\nseD299.tmp\nsExec.dll

            Filesize

            6KB

            MD5

            acc2b699edfea5bf5aae45aba3a41e96

            SHA1

            d2accf4d494e43ceb2cff69abe4dd17147d29cc2

            SHA256

            168a974eaa3f588d759db3f47c1a9fdc3494ba1fa1a73a84e5e3b2a4d58abd7e

            SHA512

            e29ea10ada98c71a18273b04f44f385b120d4e8473e441ce5748cfa44a23648814f2656f429b85440157988c88de776c6ac008dc38bf09cbb746c230a46c69fe

          • C:\Users\Admin\AppData\Local\Temp\nseD299.tmp\nsExec.dll

            Filesize

            6KB

            MD5

            acc2b699edfea5bf5aae45aba3a41e96

            SHA1

            d2accf4d494e43ceb2cff69abe4dd17147d29cc2

            SHA256

            168a974eaa3f588d759db3f47c1a9fdc3494ba1fa1a73a84e5e3b2a4d58abd7e

            SHA512

            e29ea10ada98c71a18273b04f44f385b120d4e8473e441ce5748cfa44a23648814f2656f429b85440157988c88de776c6ac008dc38bf09cbb746c230a46c69fe

          • C:\Windows\SysWOW64\hfnapi.dll

            Filesize

            106KB

            MD5

            44b85640735efb689c9b1ee7ebd56ad0

            SHA1

            313115ed8bb1ee19e0afd88a420ac0b369429fe8

            SHA256

            11c7197d8c6ccfd50f60f5a5f7dc1e136904e643fad9b3d5fb8936412df08476

            SHA512

            a40332c423b2402957550e495166241a4eb2812fb2bb82184c6e501fca7ff072aa5b1261c1d3aae2b40a6a58ab4afecbfbe8edab69946cab76cff0278826c41e

          • C:\Windows\SysWOW64\hfnapi.dll

            Filesize

            106KB

            MD5

            44b85640735efb689c9b1ee7ebd56ad0

            SHA1

            313115ed8bb1ee19e0afd88a420ac0b369429fe8

            SHA256

            11c7197d8c6ccfd50f60f5a5f7dc1e136904e643fad9b3d5fb8936412df08476

            SHA512

            a40332c423b2402957550e495166241a4eb2812fb2bb82184c6e501fca7ff072aa5b1261c1d3aae2b40a6a58ab4afecbfbe8edab69946cab76cff0278826c41e

          • C:\Windows\SysWOW64\hfnapi.dll

            Filesize

            106KB

            MD5

            44b85640735efb689c9b1ee7ebd56ad0

            SHA1

            313115ed8bb1ee19e0afd88a420ac0b369429fe8

            SHA256

            11c7197d8c6ccfd50f60f5a5f7dc1e136904e643fad9b3d5fb8936412df08476

            SHA512

            a40332c423b2402957550e495166241a4eb2812fb2bb82184c6e501fca7ff072aa5b1261c1d3aae2b40a6a58ab4afecbfbe8edab69946cab76cff0278826c41e

          • C:\Windows\SysWOW64\hfnapi.dll

            Filesize

            106KB

            MD5

            44b85640735efb689c9b1ee7ebd56ad0

            SHA1

            313115ed8bb1ee19e0afd88a420ac0b369429fe8

            SHA256

            11c7197d8c6ccfd50f60f5a5f7dc1e136904e643fad9b3d5fb8936412df08476

            SHA512

            a40332c423b2402957550e495166241a4eb2812fb2bb82184c6e501fca7ff072aa5b1261c1d3aae2b40a6a58ab4afecbfbe8edab69946cab76cff0278826c41e

          • C:\Windows\SysWOW64\hfpapi.dll

            Filesize

            244KB

            MD5

            60f1a0c21bfe66e80838dc3400405319

            SHA1

            9c60d08d79b65ddb4c9492efa5d27d712b1ca924

            SHA256

            ab805719ba29586db6b7ccdf2f1a2807d3cfa576fa2f5757dcf6a0901c323a1d

            SHA512

            4256cf0afa2827ad948ba83c9e26d52cd3805ef05c00abacc9cb3245f203328d9b9bf195b46bb4c2e6338b16a4540f79a1a16f79a5eee73e219d52f0d4209f9a

          • C:\Windows\SysWOW64\hfpapi.dll

            Filesize

            244KB

            MD5

            60f1a0c21bfe66e80838dc3400405319

            SHA1

            9c60d08d79b65ddb4c9492efa5d27d712b1ca924

            SHA256

            ab805719ba29586db6b7ccdf2f1a2807d3cfa576fa2f5757dcf6a0901c323a1d

            SHA512

            4256cf0afa2827ad948ba83c9e26d52cd3805ef05c00abacc9cb3245f203328d9b9bf195b46bb4c2e6338b16a4540f79a1a16f79a5eee73e219d52f0d4209f9a

          • C:\Windows\SysWOW64\hfpapi.dll

            Filesize

            244KB

            MD5

            60f1a0c21bfe66e80838dc3400405319

            SHA1

            9c60d08d79b65ddb4c9492efa5d27d712b1ca924

            SHA256

            ab805719ba29586db6b7ccdf2f1a2807d3cfa576fa2f5757dcf6a0901c323a1d

            SHA512

            4256cf0afa2827ad948ba83c9e26d52cd3805ef05c00abacc9cb3245f203328d9b9bf195b46bb4c2e6338b16a4540f79a1a16f79a5eee73e219d52f0d4209f9a

          • C:\Windows\SysWOW64\installd.exe

            Filesize

            108KB

            MD5

            4f17f920cacc57f59990524c9f92af65

            SHA1

            447991fb7c32c2a7182a312547fd76dc88c8d77d

            SHA256

            37d796e53dfb2d17b4e9922d3301533b46e1d564f02892483051a865cbc1605d

            SHA512

            ebb15a37740d209e8a02499337e98bef706784bc557bc080c542f16537be5387e2c2575bea1b8f8b3772fbdd688a9022603de4555afa85803588be5ec7022998

          • C:\Windows\SysWOW64\installd.exe

            Filesize

            108KB

            MD5

            4f17f920cacc57f59990524c9f92af65

            SHA1

            447991fb7c32c2a7182a312547fd76dc88c8d77d

            SHA256

            37d796e53dfb2d17b4e9922d3301533b46e1d564f02892483051a865cbc1605d

            SHA512

            ebb15a37740d209e8a02499337e98bef706784bc557bc080c542f16537be5387e2c2575bea1b8f8b3772fbdd688a9022603de4555afa85803588be5ec7022998

          • C:\Windows\SysWOW64\nethtsrv.exe

            Filesize

            176KB

            MD5

            11175ba8fe043b038ba173d8f25d19c2

            SHA1

            2a1778c42d7770475efc26b93ef4fa8ae2175a77

            SHA256

            fc2b96bb102239a182b88d515da276fc2ac5cfb76300bb85b176306025ceb2a8

            SHA512

            afb8c9c289a48c550e5a7383be3218e4d29778dd56b5ab3c56aa9f88df3a87f77d671b2c02c2f619cc18b3772448c72bda2bcd68f5791f57b0a2e3ae5e37c83b

          • C:\Windows\SysWOW64\nethtsrv.exe

            Filesize

            176KB

            MD5

            11175ba8fe043b038ba173d8f25d19c2

            SHA1

            2a1778c42d7770475efc26b93ef4fa8ae2175a77

            SHA256

            fc2b96bb102239a182b88d515da276fc2ac5cfb76300bb85b176306025ceb2a8

            SHA512

            afb8c9c289a48c550e5a7383be3218e4d29778dd56b5ab3c56aa9f88df3a87f77d671b2c02c2f619cc18b3772448c72bda2bcd68f5791f57b0a2e3ae5e37c83b

          • C:\Windows\SysWOW64\nethtsrv.exe

            Filesize

            176KB

            MD5

            11175ba8fe043b038ba173d8f25d19c2

            SHA1

            2a1778c42d7770475efc26b93ef4fa8ae2175a77

            SHA256

            fc2b96bb102239a182b88d515da276fc2ac5cfb76300bb85b176306025ceb2a8

            SHA512

            afb8c9c289a48c550e5a7383be3218e4d29778dd56b5ab3c56aa9f88df3a87f77d671b2c02c2f619cc18b3772448c72bda2bcd68f5791f57b0a2e3ae5e37c83b

          • C:\Windows\SysWOW64\netupdsrv.exe

            Filesize

            159KB

            MD5

            c30dc0aacda21c30a0cda6bd40d615bd

            SHA1

            aea707217b9a9e674d1f4aaa97ad588ff51fa971

            SHA256

            5eaf41072de0fc7d56a847b02dbf867bf64c4ed3a9609cdfe4e66487b909e674

            SHA512

            88e6ee58c3e784d065f24956e57acf192a0ba089395b61463c4c52c4ca1b526591084ad6775a8a65f315425aec0b1eb0640d6538213edce8d96dfbea78988b22

          • C:\Windows\SysWOW64\netupdsrv.exe

            Filesize

            159KB

            MD5

            c30dc0aacda21c30a0cda6bd40d615bd

            SHA1

            aea707217b9a9e674d1f4aaa97ad588ff51fa971

            SHA256

            5eaf41072de0fc7d56a847b02dbf867bf64c4ed3a9609cdfe4e66487b909e674

            SHA512

            88e6ee58c3e784d065f24956e57acf192a0ba089395b61463c4c52c4ca1b526591084ad6775a8a65f315425aec0b1eb0640d6538213edce8d96dfbea78988b22

          • C:\Windows\SysWOW64\netupdsrv.exe

            Filesize

            159KB

            MD5

            c30dc0aacda21c30a0cda6bd40d615bd

            SHA1

            aea707217b9a9e674d1f4aaa97ad588ff51fa971

            SHA256

            5eaf41072de0fc7d56a847b02dbf867bf64c4ed3a9609cdfe4e66487b909e674

            SHA512

            88e6ee58c3e784d065f24956e57acf192a0ba089395b61463c4c52c4ca1b526591084ad6775a8a65f315425aec0b1eb0640d6538213edce8d96dfbea78988b22

          • memory/344-164-0x0000000000000000-mapping.dmp

          • memory/1052-158-0x0000000000000000-mapping.dmp

          • memory/1104-152-0x0000000000000000-mapping.dmp

          • memory/1136-139-0x0000000000000000-mapping.dmp

          • memory/1576-136-0x0000000000000000-mapping.dmp

          • memory/1852-157-0x0000000000000000-mapping.dmp

          • memory/2376-165-0x0000000000000000-mapping.dmp

          • memory/2700-135-0x0000000000000000-mapping.dmp

          • memory/3140-146-0x0000000000000000-mapping.dmp

          • memory/3360-141-0x0000000000000000-mapping.dmp

          • memory/5032-140-0x0000000000000000-mapping.dmp