Analysis

  • max time kernel
    35s
  • 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 10:29

General

  • Target

    3308be9dee4dc535e55842af345c864be80a37da0439de44ec75bee535d991eb.exe

  • Size

    603KB

  • MD5

    cd4c96872eeb5b0a884f4a33f1be09a9

  • SHA1

    c276892a7a9d4530bc39717a8aa26c06dd039aab

  • SHA256

    3308be9dee4dc535e55842af345c864be80a37da0439de44ec75bee535d991eb

  • SHA512

    9d259aec6163d108c971d12b635a44e976c826615354ab0ef1757afbcafcbb40b9f1938ac0109e4a7d47779c033323542dc8df7f5abe97658a335ee045fcd683

  • SSDEEP

    12288:dIny5DYTQIrHqjaXUT3cC8FJuFd3Z2lnL0/Liil+OGhR:JUTQAmOoD8Fqd3Z2K+T

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\3308be9dee4dc535e55842af345c864be80a37da0439de44ec75bee535d991eb.exe
    "C:\Users\Admin\AppData\Local\Temp\3308be9dee4dc535e55842af345c864be80a37da0439de44ec75bee535d991eb.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:1808
    • C:\Windows\SysWOW64\net.exe
      net stop nethttpservice
      2⤵
      • Suspicious use of WriteProcessMemory
      PID:892
      • C:\Windows\SysWOW64\net1.exe
        C:\Windows\system32\net1 stop nethttpservice
        3⤵
          PID:1604
      • C:\Windows\SysWOW64\net.exe
        net stop serviceupdater
        2⤵
        • Suspicious use of WriteProcessMemory
        PID:848
        • C:\Windows\SysWOW64\net1.exe
          C:\Windows\system32\net1 stop serviceupdater
          3⤵
            PID:1548
        • C:\Windows\SysWOW64\installd.exe
          "C:\Windows\system32\installd.exe" nethfdrv
          2⤵
          • Executes dropped EXE
          • Loads dropped DLL
          PID:1468
        • C:\Windows\SysWOW64\nethtsrv.exe
          "C:\Windows\system32\nethtsrv.exe" -nfdi
          2⤵
          • Executes dropped EXE
          • Loads dropped DLL
          PID:524
        • C:\Windows\SysWOW64\netupdsrv.exe
          "C:\Windows\system32\netupdsrv.exe" -nfdi
          2⤵
          • Executes dropped EXE
          PID:1068
        • C:\Windows\SysWOW64\net.exe
          net start nethttpservice
          2⤵
          • Suspicious use of WriteProcessMemory
          PID:1712
          • C:\Windows\SysWOW64\net1.exe
            C:\Windows\system32\net1 start nethttpservice
            3⤵
              PID:268
          • C:\Windows\SysWOW64\net.exe
            net start serviceupdater
            2⤵
            • Suspicious use of WriteProcessMemory
            PID:1524
            • C:\Windows\SysWOW64\net1.exe
              C:\Windows\system32\net1 start serviceupdater
              3⤵
                PID:1472
          • C:\Windows\SysWOW64\nethtsrv.exe
            C:\Windows\SysWOW64\nethtsrv.exe
            1⤵
            • Executes dropped EXE
            • Loads dropped DLL
            • Suspicious use of AdjustPrivilegeToken
            PID:112
          • C:\Windows\SysWOW64\netupdsrv.exe
            C:\Windows\SysWOW64\netupdsrv.exe
            1⤵
            • Executes dropped EXE
            PID:988

          Network

          MITRE ATT&CK Enterprise v6

          Replay Monitor

          Loading Replay Monitor...

          Downloads

          • C:\Windows\SysWOW64\hfnapi.dll

            Filesize

            106KB

            MD5

            1aebceac522bf4451687910b8c7e57e6

            SHA1

            30d7f573880b86169b849c2a5a6853c5271b4f51

            SHA256

            7a2ff9a71721d50382260db1f355cd1e076b26c301fddcdd768ea60a8420816b

            SHA512

            1986e21b8408dfb5b02020b63cc9570fd221c4d7b41e2a6aff6660bf61adf2cb82ab8a48e0fc22d296d12e702773d5198b8ae6b0403ebf22266ea1c9e3e7aa74

          • C:\Windows\SysWOW64\hfpapi.dll

            Filesize

            244KB

            MD5

            8ae6aa8388074fa431fee8215230a40e

            SHA1

            2f50022d1f831b07522c1315cffd2a8d8afca093

            SHA256

            73a722a2f8bb45f865b951fd0cabc9099ce1c08d653d66391b3420e99de11c36

            SHA512

            9c0d07efac09a3f26507660d6382b768f26858f11375ce628f332dfaaa1c0bc6dd8fd14c78a65a5e273fbb6809f6d5ce1da45ab1a3ebba7c1ab4176e4b0f4698

          • C:\Windows\SysWOW64\installd.exe

            Filesize

            108KB

            MD5

            688135e9d3bc54131d7425671840bb6a

            SHA1

            b9c2a862143a49e9fef4dfe6b03c2145e2a80f6b

            SHA256

            1a3e4f3e37c2d3912e5ccf9a8a2476abb35113863117f738c566847d28a29278

            SHA512

            02f60f37787c61ede93cc98865c95483b14f2b2d9483aff0f988d68736a2b919f61bca351e13ab8d20c401a8c187607494950c41f1a3f54753e20b71b3affca3

          • C:\Windows\SysWOW64\nethtsrv.exe

            Filesize

            176KB

            MD5

            e227ddf9431e1d282e8ef8235f5e2173

            SHA1

            57271d81790d0f87a10160fdf80cf0b1f33997ac

            SHA256

            2ec5d362ec15a204d0a346f5fb6fcb2b16545daee6f643741e4832c86a72823c

            SHA512

            e849b33fe6a977e15fb8c20fce71234fa1ce7bfde65f3d51d8c5061255831f19ef477aec54698e126a17eb478a2975f4dd329ad085a0573ee3d6ea1e98ac4fe6

          • C:\Windows\SysWOW64\nethtsrv.exe

            Filesize

            176KB

            MD5

            e227ddf9431e1d282e8ef8235f5e2173

            SHA1

            57271d81790d0f87a10160fdf80cf0b1f33997ac

            SHA256

            2ec5d362ec15a204d0a346f5fb6fcb2b16545daee6f643741e4832c86a72823c

            SHA512

            e849b33fe6a977e15fb8c20fce71234fa1ce7bfde65f3d51d8c5061255831f19ef477aec54698e126a17eb478a2975f4dd329ad085a0573ee3d6ea1e98ac4fe6

          • C:\Windows\SysWOW64\netupdsrv.exe

            Filesize

            158KB

            MD5

            d9b8cdb2329db421129d3a1a55916d0b

            SHA1

            a3c713bfda76c0339e59b03e221c410db4e3e667

            SHA256

            5db565a79d1b25f20a4d695597b58f4d686aefa1615dfa5a87323d7d234e0e65

            SHA512

            d685201b5797c8400834509ba33a5d54cd8fd71dc2f0c255328b07b0de217c43ee8a5640e4553fe8229f6efaf2815ab23b841f42bda6d6072708a49c53973400

          • C:\Windows\SysWOW64\netupdsrv.exe

            Filesize

            158KB

            MD5

            d9b8cdb2329db421129d3a1a55916d0b

            SHA1

            a3c713bfda76c0339e59b03e221c410db4e3e667

            SHA256

            5db565a79d1b25f20a4d695597b58f4d686aefa1615dfa5a87323d7d234e0e65

            SHA512

            d685201b5797c8400834509ba33a5d54cd8fd71dc2f0c255328b07b0de217c43ee8a5640e4553fe8229f6efaf2815ab23b841f42bda6d6072708a49c53973400

          • \Users\Admin\AppData\Local\Temp\nst174B.tmp\System.dll

            Filesize

            11KB

            MD5

            c17103ae9072a06da581dec998343fc1

            SHA1

            b72148c6bdfaada8b8c3f950e610ee7cf1da1f8d

            SHA256

            dc58d8ad81cacb0c1ed72e33bff8f23ea40b5252b5bb55d393a0903e6819ae2f

            SHA512

            d32a71aaef18e993f28096d536e41c4d016850721b31171513ce28bbd805a54fd290b7c3e9d935f72e676a1acfb4f0dcc89d95040a0dd29f2b6975855c18986f

          • \Users\Admin\AppData\Local\Temp\nst174B.tmp\nsExec.dll

            Filesize

            6KB

            MD5

            acc2b699edfea5bf5aae45aba3a41e96

            SHA1

            d2accf4d494e43ceb2cff69abe4dd17147d29cc2

            SHA256

            168a974eaa3f588d759db3f47c1a9fdc3494ba1fa1a73a84e5e3b2a4d58abd7e

            SHA512

            e29ea10ada98c71a18273b04f44f385b120d4e8473e441ce5748cfa44a23648814f2656f429b85440157988c88de776c6ac008dc38bf09cbb746c230a46c69fe

          • \Users\Admin\AppData\Local\Temp\nst174B.tmp\nsExec.dll

            Filesize

            6KB

            MD5

            acc2b699edfea5bf5aae45aba3a41e96

            SHA1

            d2accf4d494e43ceb2cff69abe4dd17147d29cc2

            SHA256

            168a974eaa3f588d759db3f47c1a9fdc3494ba1fa1a73a84e5e3b2a4d58abd7e

            SHA512

            e29ea10ada98c71a18273b04f44f385b120d4e8473e441ce5748cfa44a23648814f2656f429b85440157988c88de776c6ac008dc38bf09cbb746c230a46c69fe

          • \Users\Admin\AppData\Local\Temp\nst174B.tmp\nsExec.dll

            Filesize

            6KB

            MD5

            acc2b699edfea5bf5aae45aba3a41e96

            SHA1

            d2accf4d494e43ceb2cff69abe4dd17147d29cc2

            SHA256

            168a974eaa3f588d759db3f47c1a9fdc3494ba1fa1a73a84e5e3b2a4d58abd7e

            SHA512

            e29ea10ada98c71a18273b04f44f385b120d4e8473e441ce5748cfa44a23648814f2656f429b85440157988c88de776c6ac008dc38bf09cbb746c230a46c69fe

          • \Users\Admin\AppData\Local\Temp\nst174B.tmp\nsExec.dll

            Filesize

            6KB

            MD5

            acc2b699edfea5bf5aae45aba3a41e96

            SHA1

            d2accf4d494e43ceb2cff69abe4dd17147d29cc2

            SHA256

            168a974eaa3f588d759db3f47c1a9fdc3494ba1fa1a73a84e5e3b2a4d58abd7e

            SHA512

            e29ea10ada98c71a18273b04f44f385b120d4e8473e441ce5748cfa44a23648814f2656f429b85440157988c88de776c6ac008dc38bf09cbb746c230a46c69fe

          • \Windows\SysWOW64\hfnapi.dll

            Filesize

            106KB

            MD5

            1aebceac522bf4451687910b8c7e57e6

            SHA1

            30d7f573880b86169b849c2a5a6853c5271b4f51

            SHA256

            7a2ff9a71721d50382260db1f355cd1e076b26c301fddcdd768ea60a8420816b

            SHA512

            1986e21b8408dfb5b02020b63cc9570fd221c4d7b41e2a6aff6660bf61adf2cb82ab8a48e0fc22d296d12e702773d5198b8ae6b0403ebf22266ea1c9e3e7aa74

          • \Windows\SysWOW64\hfnapi.dll

            Filesize

            106KB

            MD5

            1aebceac522bf4451687910b8c7e57e6

            SHA1

            30d7f573880b86169b849c2a5a6853c5271b4f51

            SHA256

            7a2ff9a71721d50382260db1f355cd1e076b26c301fddcdd768ea60a8420816b

            SHA512

            1986e21b8408dfb5b02020b63cc9570fd221c4d7b41e2a6aff6660bf61adf2cb82ab8a48e0fc22d296d12e702773d5198b8ae6b0403ebf22266ea1c9e3e7aa74

          • \Windows\SysWOW64\hfnapi.dll

            Filesize

            106KB

            MD5

            1aebceac522bf4451687910b8c7e57e6

            SHA1

            30d7f573880b86169b849c2a5a6853c5271b4f51

            SHA256

            7a2ff9a71721d50382260db1f355cd1e076b26c301fddcdd768ea60a8420816b

            SHA512

            1986e21b8408dfb5b02020b63cc9570fd221c4d7b41e2a6aff6660bf61adf2cb82ab8a48e0fc22d296d12e702773d5198b8ae6b0403ebf22266ea1c9e3e7aa74

          • \Windows\SysWOW64\hfpapi.dll

            Filesize

            244KB

            MD5

            8ae6aa8388074fa431fee8215230a40e

            SHA1

            2f50022d1f831b07522c1315cffd2a8d8afca093

            SHA256

            73a722a2f8bb45f865b951fd0cabc9099ce1c08d653d66391b3420e99de11c36

            SHA512

            9c0d07efac09a3f26507660d6382b768f26858f11375ce628f332dfaaa1c0bc6dd8fd14c78a65a5e273fbb6809f6d5ce1da45ab1a3ebba7c1ab4176e4b0f4698

          • \Windows\SysWOW64\hfpapi.dll

            Filesize

            244KB

            MD5

            8ae6aa8388074fa431fee8215230a40e

            SHA1

            2f50022d1f831b07522c1315cffd2a8d8afca093

            SHA256

            73a722a2f8bb45f865b951fd0cabc9099ce1c08d653d66391b3420e99de11c36

            SHA512

            9c0d07efac09a3f26507660d6382b768f26858f11375ce628f332dfaaa1c0bc6dd8fd14c78a65a5e273fbb6809f6d5ce1da45ab1a3ebba7c1ab4176e4b0f4698

          • \Windows\SysWOW64\installd.exe

            Filesize

            108KB

            MD5

            688135e9d3bc54131d7425671840bb6a

            SHA1

            b9c2a862143a49e9fef4dfe6b03c2145e2a80f6b

            SHA256

            1a3e4f3e37c2d3912e5ccf9a8a2476abb35113863117f738c566847d28a29278

            SHA512

            02f60f37787c61ede93cc98865c95483b14f2b2d9483aff0f988d68736a2b919f61bca351e13ab8d20c401a8c187607494950c41f1a3f54753e20b71b3affca3

          • \Windows\SysWOW64\nethtsrv.exe

            Filesize

            176KB

            MD5

            e227ddf9431e1d282e8ef8235f5e2173

            SHA1

            57271d81790d0f87a10160fdf80cf0b1f33997ac

            SHA256

            2ec5d362ec15a204d0a346f5fb6fcb2b16545daee6f643741e4832c86a72823c

            SHA512

            e849b33fe6a977e15fb8c20fce71234fa1ce7bfde65f3d51d8c5061255831f19ef477aec54698e126a17eb478a2975f4dd329ad085a0573ee3d6ea1e98ac4fe6

          • \Windows\SysWOW64\netupdsrv.exe

            Filesize

            158KB

            MD5

            d9b8cdb2329db421129d3a1a55916d0b

            SHA1

            a3c713bfda76c0339e59b03e221c410db4e3e667

            SHA256

            5db565a79d1b25f20a4d695597b58f4d686aefa1615dfa5a87323d7d234e0e65

            SHA512

            d685201b5797c8400834509ba33a5d54cd8fd71dc2f0c255328b07b0de217c43ee8a5640e4553fe8229f6efaf2815ab23b841f42bda6d6072708a49c53973400

          • memory/268-81-0x0000000000000000-mapping.dmp

          • memory/524-70-0x0000000000000000-mapping.dmp

          • memory/848-61-0x0000000000000000-mapping.dmp

          • memory/892-57-0x0000000000000000-mapping.dmp

          • memory/1068-76-0x0000000000000000-mapping.dmp

          • memory/1468-64-0x0000000000000000-mapping.dmp

          • memory/1472-87-0x0000000000000000-mapping.dmp

          • memory/1524-86-0x0000000000000000-mapping.dmp

          • memory/1548-62-0x0000000000000000-mapping.dmp

          • memory/1604-58-0x0000000000000000-mapping.dmp

          • memory/1712-80-0x0000000000000000-mapping.dmp

          • memory/1808-54-0x00000000751A1000-0x00000000751A3000-memory.dmp

            Filesize

            8KB

          • memory/1808-59-0x0000000000360000-0x00000000007BE000-memory.dmp

            Filesize

            4.4MB

          • memory/1808-90-0x0000000000360000-0x00000000007BE000-memory.dmp

            Filesize

            4.4MB