Analysis

  • max time kernel
    52s
  • max time network
    102s
  • 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 10:09

General

  • Target

    e73147f24bbb42517733f1700cd2ba4f62c7a170632c8efa52f2c66dba959372.exe

  • Size

    602KB

  • MD5

    77ca9a0dec9300098722d9c52e414f64

  • SHA1

    c30cd4abd0ebb7849271f8ca6427482e534e6753

  • SHA256

    e73147f24bbb42517733f1700cd2ba4f62c7a170632c8efa52f2c66dba959372

  • SHA512

    e3dbc83fe4a01f097890e30e1a15cec1ca4f706575c393b9582ba3f951ea5d1245b9ac5b887873a2cf79756048b8e5db35bb3dd3bdb4e3862b91126c5b837c82

  • SSDEEP

    12288:7Iny5DYTutQE0H7m5e+WFoKSha2Z7kq+O9:DUTutQ45rWFog2Z7kq+O

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\e73147f24bbb42517733f1700cd2ba4f62c7a170632c8efa52f2c66dba959372.exe
    "C:\Users\Admin\AppData\Local\Temp\e73147f24bbb42517733f1700cd2ba4f62c7a170632c8efa52f2c66dba959372.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:2440
    • C:\Windows\SysWOW64\net.exe
      net stop nethttpservice
      2⤵
      • Suspicious use of WriteProcessMemory
      PID:4928
      • C:\Windows\SysWOW64\net1.exe
        C:\Windows\system32\net1 stop nethttpservice
        3⤵
          PID:4864
      • C:\Windows\SysWOW64\net.exe
        net stop serviceupdater
        2⤵
        • Suspicious use of WriteProcessMemory
        PID:1628
        • C:\Windows\SysWOW64\net1.exe
          C:\Windows\system32\net1 stop serviceupdater
          3⤵
            PID:1484
        • C:\Windows\SysWOW64\installd.exe
          "C:\Windows\system32\installd.exe" nethfdrv
          2⤵
          • Executes dropped EXE
          • Loads dropped DLL
          PID:1244
        • C:\Windows\SysWOW64\nethtsrv.exe
          "C:\Windows\system32\nethtsrv.exe" -nfdi
          2⤵
          • Executes dropped EXE
          • Loads dropped DLL
          PID:3620
        • C:\Windows\SysWOW64\netupdsrv.exe
          "C:\Windows\system32\netupdsrv.exe" -nfdi
          2⤵
          • Executes dropped EXE
          PID:204
        • C:\Windows\SysWOW64\net.exe
          net start nethttpservice
          2⤵
          • Suspicious use of WriteProcessMemory
          PID:1880
          • C:\Windows\SysWOW64\net1.exe
            C:\Windows\system32\net1 start nethttpservice
            3⤵
              PID:5020
          • C:\Windows\SysWOW64\net.exe
            net start serviceupdater
            2⤵
            • Suspicious use of WriteProcessMemory
            PID:4592
            • C:\Windows\SysWOW64\net1.exe
              C:\Windows\system32\net1 start serviceupdater
              3⤵
                PID:1868
          • 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:3200
          • C:\Windows\SysWOW64\netupdsrv.exe
            C:\Windows\SysWOW64\netupdsrv.exe
            1⤵
            • Executes dropped EXE
            PID:3672

          Network

          MITRE ATT&CK Enterprise v6

          Replay Monitor

          Loading Replay Monitor...

          Downloads

          • C:\Users\Admin\AppData\Local\Temp\nsnF42B.tmp\System.dll

            Filesize

            11KB

            MD5

            c17103ae9072a06da581dec998343fc1

            SHA1

            b72148c6bdfaada8b8c3f950e610ee7cf1da1f8d

            SHA256

            dc58d8ad81cacb0c1ed72e33bff8f23ea40b5252b5bb55d393a0903e6819ae2f

            SHA512

            d32a71aaef18e993f28096d536e41c4d016850721b31171513ce28bbd805a54fd290b7c3e9d935f72e676a1acfb4f0dcc89d95040a0dd29f2b6975855c18986f

          • C:\Users\Admin\AppData\Local\Temp\nsnF42B.tmp\nsExec.dll

            Filesize

            6KB

            MD5

            acc2b699edfea5bf5aae45aba3a41e96

            SHA1

            d2accf4d494e43ceb2cff69abe4dd17147d29cc2

            SHA256

            168a974eaa3f588d759db3f47c1a9fdc3494ba1fa1a73a84e5e3b2a4d58abd7e

            SHA512

            e29ea10ada98c71a18273b04f44f385b120d4e8473e441ce5748cfa44a23648814f2656f429b85440157988c88de776c6ac008dc38bf09cbb746c230a46c69fe

          • C:\Users\Admin\AppData\Local\Temp\nsnF42B.tmp\nsExec.dll

            Filesize

            6KB

            MD5

            acc2b699edfea5bf5aae45aba3a41e96

            SHA1

            d2accf4d494e43ceb2cff69abe4dd17147d29cc2

            SHA256

            168a974eaa3f588d759db3f47c1a9fdc3494ba1fa1a73a84e5e3b2a4d58abd7e

            SHA512

            e29ea10ada98c71a18273b04f44f385b120d4e8473e441ce5748cfa44a23648814f2656f429b85440157988c88de776c6ac008dc38bf09cbb746c230a46c69fe

          • C:\Users\Admin\AppData\Local\Temp\nsnF42B.tmp\nsExec.dll

            Filesize

            6KB

            MD5

            acc2b699edfea5bf5aae45aba3a41e96

            SHA1

            d2accf4d494e43ceb2cff69abe4dd17147d29cc2

            SHA256

            168a974eaa3f588d759db3f47c1a9fdc3494ba1fa1a73a84e5e3b2a4d58abd7e

            SHA512

            e29ea10ada98c71a18273b04f44f385b120d4e8473e441ce5748cfa44a23648814f2656f429b85440157988c88de776c6ac008dc38bf09cbb746c230a46c69fe

          • C:\Users\Admin\AppData\Local\Temp\nsnF42B.tmp\nsExec.dll

            Filesize

            6KB

            MD5

            acc2b699edfea5bf5aae45aba3a41e96

            SHA1

            d2accf4d494e43ceb2cff69abe4dd17147d29cc2

            SHA256

            168a974eaa3f588d759db3f47c1a9fdc3494ba1fa1a73a84e5e3b2a4d58abd7e

            SHA512

            e29ea10ada98c71a18273b04f44f385b120d4e8473e441ce5748cfa44a23648814f2656f429b85440157988c88de776c6ac008dc38bf09cbb746c230a46c69fe

          • C:\Users\Admin\AppData\Local\Temp\nsnF42B.tmp\nsExec.dll

            Filesize

            6KB

            MD5

            acc2b699edfea5bf5aae45aba3a41e96

            SHA1

            d2accf4d494e43ceb2cff69abe4dd17147d29cc2

            SHA256

            168a974eaa3f588d759db3f47c1a9fdc3494ba1fa1a73a84e5e3b2a4d58abd7e

            SHA512

            e29ea10ada98c71a18273b04f44f385b120d4e8473e441ce5748cfa44a23648814f2656f429b85440157988c88de776c6ac008dc38bf09cbb746c230a46c69fe

          • C:\Users\Admin\AppData\Local\Temp\nsnF42B.tmp\nsExec.dll

            Filesize

            6KB

            MD5

            acc2b699edfea5bf5aae45aba3a41e96

            SHA1

            d2accf4d494e43ceb2cff69abe4dd17147d29cc2

            SHA256

            168a974eaa3f588d759db3f47c1a9fdc3494ba1fa1a73a84e5e3b2a4d58abd7e

            SHA512

            e29ea10ada98c71a18273b04f44f385b120d4e8473e441ce5748cfa44a23648814f2656f429b85440157988c88de776c6ac008dc38bf09cbb746c230a46c69fe

          • C:\Users\Admin\AppData\Local\Temp\nsnF42B.tmp\nsExec.dll

            Filesize

            6KB

            MD5

            acc2b699edfea5bf5aae45aba3a41e96

            SHA1

            d2accf4d494e43ceb2cff69abe4dd17147d29cc2

            SHA256

            168a974eaa3f588d759db3f47c1a9fdc3494ba1fa1a73a84e5e3b2a4d58abd7e

            SHA512

            e29ea10ada98c71a18273b04f44f385b120d4e8473e441ce5748cfa44a23648814f2656f429b85440157988c88de776c6ac008dc38bf09cbb746c230a46c69fe

          • C:\Users\Admin\AppData\Local\Temp\nsnF42B.tmp\nsExec.dll

            Filesize

            6KB

            MD5

            acc2b699edfea5bf5aae45aba3a41e96

            SHA1

            d2accf4d494e43ceb2cff69abe4dd17147d29cc2

            SHA256

            168a974eaa3f588d759db3f47c1a9fdc3494ba1fa1a73a84e5e3b2a4d58abd7e

            SHA512

            e29ea10ada98c71a18273b04f44f385b120d4e8473e441ce5748cfa44a23648814f2656f429b85440157988c88de776c6ac008dc38bf09cbb746c230a46c69fe

          • C:\Windows\SysWOW64\hfnapi.dll

            Filesize

            106KB

            MD5

            ec72fd771c6e882c333b63db1ded3374

            SHA1

            343227279c6d440676834b75e164b131b0f8974e

            SHA256

            2314025bb3c0fcc74b19fa2a5f5d8229304520392d0389a93042aaa2c1abfd1f

            SHA512

            b51ede23e1a0f9fbca6645dd4eba72142db2270a0bd851d58dfb9432f019facbc69e64b84983c27447050aa242d5b38a63abfdd8b2387543e18733d15793136a

          • C:\Windows\SysWOW64\hfnapi.dll

            Filesize

            106KB

            MD5

            ec72fd771c6e882c333b63db1ded3374

            SHA1

            343227279c6d440676834b75e164b131b0f8974e

            SHA256

            2314025bb3c0fcc74b19fa2a5f5d8229304520392d0389a93042aaa2c1abfd1f

            SHA512

            b51ede23e1a0f9fbca6645dd4eba72142db2270a0bd851d58dfb9432f019facbc69e64b84983c27447050aa242d5b38a63abfdd8b2387543e18733d15793136a

          • C:\Windows\SysWOW64\hfnapi.dll

            Filesize

            106KB

            MD5

            ec72fd771c6e882c333b63db1ded3374

            SHA1

            343227279c6d440676834b75e164b131b0f8974e

            SHA256

            2314025bb3c0fcc74b19fa2a5f5d8229304520392d0389a93042aaa2c1abfd1f

            SHA512

            b51ede23e1a0f9fbca6645dd4eba72142db2270a0bd851d58dfb9432f019facbc69e64b84983c27447050aa242d5b38a63abfdd8b2387543e18733d15793136a

          • C:\Windows\SysWOW64\hfnapi.dll

            Filesize

            106KB

            MD5

            ec72fd771c6e882c333b63db1ded3374

            SHA1

            343227279c6d440676834b75e164b131b0f8974e

            SHA256

            2314025bb3c0fcc74b19fa2a5f5d8229304520392d0389a93042aaa2c1abfd1f

            SHA512

            b51ede23e1a0f9fbca6645dd4eba72142db2270a0bd851d58dfb9432f019facbc69e64b84983c27447050aa242d5b38a63abfdd8b2387543e18733d15793136a

          • C:\Windows\SysWOW64\hfpapi.dll

            Filesize

            241KB

            MD5

            b84d010e58f478b077503afcf643eaa3

            SHA1

            bd235f1202e1adcad94393bc10b5b6fc6d6d7016

            SHA256

            753a6a0342e917b4d7e585995d9ee0afda3e987c3d199b288e4dd9c0adcb7c8c

            SHA512

            b2f8e4ec42b2ae88039b25abe525095fd58123e68b90abefa77a1bbbeb0cea7d53b888c9868bf5631b50999c5935170bad7ba671585ec3c2da5f2232e9c25421

          • C:\Windows\SysWOW64\hfpapi.dll

            Filesize

            241KB

            MD5

            b84d010e58f478b077503afcf643eaa3

            SHA1

            bd235f1202e1adcad94393bc10b5b6fc6d6d7016

            SHA256

            753a6a0342e917b4d7e585995d9ee0afda3e987c3d199b288e4dd9c0adcb7c8c

            SHA512

            b2f8e4ec42b2ae88039b25abe525095fd58123e68b90abefa77a1bbbeb0cea7d53b888c9868bf5631b50999c5935170bad7ba671585ec3c2da5f2232e9c25421

          • C:\Windows\SysWOW64\hfpapi.dll

            Filesize

            241KB

            MD5

            b84d010e58f478b077503afcf643eaa3

            SHA1

            bd235f1202e1adcad94393bc10b5b6fc6d6d7016

            SHA256

            753a6a0342e917b4d7e585995d9ee0afda3e987c3d199b288e4dd9c0adcb7c8c

            SHA512

            b2f8e4ec42b2ae88039b25abe525095fd58123e68b90abefa77a1bbbeb0cea7d53b888c9868bf5631b50999c5935170bad7ba671585ec3c2da5f2232e9c25421

          • C:\Windows\SysWOW64\installd.exe

            Filesize

            108KB

            MD5

            6b4b091657f76fa59ffc050de8ea126a

            SHA1

            b263f1d60fac36c1694d376913c667f168667ef5

            SHA256

            525750231d52d358a0d1eeb48f951e88912ad93278ad40861958782d01b92ab1

            SHA512

            402e81ac51268feb535de545f2ec73d4b2351d88ea13e27c986a255154ee59962f1c59f2a11975887a5b7d48ac49b52f9df7ea5fb3114e0b1b516491fbd9acee

          • C:\Windows\SysWOW64\installd.exe

            Filesize

            108KB

            MD5

            6b4b091657f76fa59ffc050de8ea126a

            SHA1

            b263f1d60fac36c1694d376913c667f168667ef5

            SHA256

            525750231d52d358a0d1eeb48f951e88912ad93278ad40861958782d01b92ab1

            SHA512

            402e81ac51268feb535de545f2ec73d4b2351d88ea13e27c986a255154ee59962f1c59f2a11975887a5b7d48ac49b52f9df7ea5fb3114e0b1b516491fbd9acee

          • C:\Windows\SysWOW64\nethtsrv.exe

            Filesize

            176KB

            MD5

            0cf4cc01834b93ea31ec892d6b6c806a

            SHA1

            3c3e916564c385e0df22967bb190170e2ff30e26

            SHA256

            366df5fcb84344eb38617b9a07f96d7b0ba786f251a6d33f9a115240698fb701

            SHA512

            ffe691c998e0a623386221c5b1f5e37aaee0a6b0d1d8ab9c0b4573da59089aceaf765b6a9f0b3da5feab37b6a5cb9342297cdaeb4124a934a5bfece54e6ef740

          • C:\Windows\SysWOW64\nethtsrv.exe

            Filesize

            176KB

            MD5

            0cf4cc01834b93ea31ec892d6b6c806a

            SHA1

            3c3e916564c385e0df22967bb190170e2ff30e26

            SHA256

            366df5fcb84344eb38617b9a07f96d7b0ba786f251a6d33f9a115240698fb701

            SHA512

            ffe691c998e0a623386221c5b1f5e37aaee0a6b0d1d8ab9c0b4573da59089aceaf765b6a9f0b3da5feab37b6a5cb9342297cdaeb4124a934a5bfece54e6ef740

          • C:\Windows\SysWOW64\nethtsrv.exe

            Filesize

            176KB

            MD5

            0cf4cc01834b93ea31ec892d6b6c806a

            SHA1

            3c3e916564c385e0df22967bb190170e2ff30e26

            SHA256

            366df5fcb84344eb38617b9a07f96d7b0ba786f251a6d33f9a115240698fb701

            SHA512

            ffe691c998e0a623386221c5b1f5e37aaee0a6b0d1d8ab9c0b4573da59089aceaf765b6a9f0b3da5feab37b6a5cb9342297cdaeb4124a934a5bfece54e6ef740

          • C:\Windows\SysWOW64\netupdsrv.exe

            Filesize

            158KB

            MD5

            8064780eb7ac7c6fcfd63e4388868900

            SHA1

            5d009cfee3237aa6415b81092e8eb960cda16040

            SHA256

            865533e850bb731d17d263138030ce01c47fedafe40ee6e7bd385982197a35c8

            SHA512

            ed784e4c32913199fceb13fb317eeb52022bed86e1a923a6c37fd8157a5a17ee4ea7345eeec431f4ecf3b60e5dd25ab04c4a54213f003d8cd7590e91757679e2

          • C:\Windows\SysWOW64\netupdsrv.exe

            Filesize

            158KB

            MD5

            8064780eb7ac7c6fcfd63e4388868900

            SHA1

            5d009cfee3237aa6415b81092e8eb960cda16040

            SHA256

            865533e850bb731d17d263138030ce01c47fedafe40ee6e7bd385982197a35c8

            SHA512

            ed784e4c32913199fceb13fb317eeb52022bed86e1a923a6c37fd8157a5a17ee4ea7345eeec431f4ecf3b60e5dd25ab04c4a54213f003d8cd7590e91757679e2

          • C:\Windows\SysWOW64\netupdsrv.exe

            Filesize

            158KB

            MD5

            8064780eb7ac7c6fcfd63e4388868900

            SHA1

            5d009cfee3237aa6415b81092e8eb960cda16040

            SHA256

            865533e850bb731d17d263138030ce01c47fedafe40ee6e7bd385982197a35c8

            SHA512

            ed784e4c32913199fceb13fb317eeb52022bed86e1a923a6c37fd8157a5a17ee4ea7345eeec431f4ecf3b60e5dd25ab04c4a54213f003d8cd7590e91757679e2

          • memory/204-154-0x0000000000000000-mapping.dmp

          • memory/1244-142-0x0000000000000000-mapping.dmp

          • memory/1484-141-0x0000000000000000-mapping.dmp

          • memory/1628-140-0x0000000000000000-mapping.dmp

          • memory/1868-167-0x0000000000000000-mapping.dmp

          • memory/1880-159-0x0000000000000000-mapping.dmp

          • memory/2440-147-0x0000000000360000-0x00000000007BE000-memory.dmp

            Filesize

            4.4MB

          • memory/2440-132-0x0000000000360000-0x00000000007BE000-memory.dmp

            Filesize

            4.4MB

          • memory/2440-169-0x0000000000360000-0x00000000007BE000-memory.dmp

            Filesize

            4.4MB

          • memory/3620-148-0x0000000000000000-mapping.dmp

          • memory/4592-166-0x0000000000000000-mapping.dmp

          • memory/4864-137-0x0000000000000000-mapping.dmp

          • memory/4928-136-0x0000000000000000-mapping.dmp

          • memory/5020-160-0x0000000000000000-mapping.dmp