Analysis

  • max time kernel
    149s
  • max time network
    168s
  • 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 10:23

General

  • Target

    6dc7c41015574b5c5f0ff0575b487cf3e495c97b5ed812eb6175c640d35f5a21.exe

  • Size

    603KB

  • MD5

    915812aeb863fd51f765914ae83693ea

  • SHA1

    7c62b052e9ebb250029c0d217b8652df205ab288

  • SHA256

    6dc7c41015574b5c5f0ff0575b487cf3e495c97b5ed812eb6175c640d35f5a21

  • SHA512

    a5f008af6c83c7b2e69ecef86468a4a22f1cd30fd0e16c938ba6637c6acc1b7df1aa9420761f6a741a0ae41dc3f969047985b191bea3da055ab3dcd62a1affdc

  • SSDEEP

    12288:uIny5DYTmIHqEF+CcQk8YlRGQ2hSPyby3+04m8QF+WHF0Yw:wUTmgqBClk/lRhPwy3+0plF0Y

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\6dc7c41015574b5c5f0ff0575b487cf3e495c97b5ed812eb6175c640d35f5a21.exe
    "C:\Users\Admin\AppData\Local\Temp\6dc7c41015574b5c5f0ff0575b487cf3e495c97b5ed812eb6175c640d35f5a21.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:4200
    • C:\Windows\SysWOW64\net.exe
      net stop nethttpservice
      2⤵
      • Suspicious use of WriteProcessMemory
      PID:2120
      • C:\Windows\SysWOW64\net1.exe
        C:\Windows\system32\net1 stop nethttpservice
        3⤵
          PID:1508
      • C:\Windows\SysWOW64\net.exe
        net stop serviceupdater
        2⤵
        • Suspicious use of WriteProcessMemory
        PID:4888
        • C:\Windows\SysWOW64\net1.exe
          C:\Windows\system32\net1 stop serviceupdater
          3⤵
            PID:5116
        • C:\Windows\SysWOW64\installd.exe
          "C:\Windows\system32\installd.exe" nethfdrv
          2⤵
          • Executes dropped EXE
          • Loads dropped DLL
          PID:1524
        • C:\Windows\SysWOW64\nethtsrv.exe
          "C:\Windows\system32\nethtsrv.exe" -nfdi
          2⤵
          • Executes dropped EXE
          • Loads dropped DLL
          PID:1396
        • C:\Windows\SysWOW64\netupdsrv.exe
          "C:\Windows\system32\netupdsrv.exe" -nfdi
          2⤵
          • Executes dropped EXE
          PID:4876
        • C:\Windows\SysWOW64\net.exe
          net start nethttpservice
          2⤵
          • Suspicious use of WriteProcessMemory
          PID:3500
          • C:\Windows\SysWOW64\net1.exe
            C:\Windows\system32\net1 start nethttpservice
            3⤵
              PID:204
          • C:\Windows\SysWOW64\net.exe
            net start serviceupdater
            2⤵
            • Suspicious use of WriteProcessMemory
            PID:4484
            • C:\Windows\SysWOW64\net1.exe
              C:\Windows\system32\net1 start serviceupdater
              3⤵
                PID:3828
          • 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:4004
          • C:\Windows\SysWOW64\netupdsrv.exe
            C:\Windows\SysWOW64\netupdsrv.exe
            1⤵
            • Executes dropped EXE
            PID:3716

          Network

          MITRE ATT&CK Enterprise v6

          Replay Monitor

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          Downloads

          • C:\Users\Admin\AppData\Local\Temp\nskBB48.tmp\System.dll

            Filesize

            11KB

            MD5

            c17103ae9072a06da581dec998343fc1

            SHA1

            b72148c6bdfaada8b8c3f950e610ee7cf1da1f8d

            SHA256

            dc58d8ad81cacb0c1ed72e33bff8f23ea40b5252b5bb55d393a0903e6819ae2f

            SHA512

            d32a71aaef18e993f28096d536e41c4d016850721b31171513ce28bbd805a54fd290b7c3e9d935f72e676a1acfb4f0dcc89d95040a0dd29f2b6975855c18986f

          • C:\Users\Admin\AppData\Local\Temp\nskBB48.tmp\nsExec.dll

            Filesize

            6KB

            MD5

            acc2b699edfea5bf5aae45aba3a41e96

            SHA1

            d2accf4d494e43ceb2cff69abe4dd17147d29cc2

            SHA256

            168a974eaa3f588d759db3f47c1a9fdc3494ba1fa1a73a84e5e3b2a4d58abd7e

            SHA512

            e29ea10ada98c71a18273b04f44f385b120d4e8473e441ce5748cfa44a23648814f2656f429b85440157988c88de776c6ac008dc38bf09cbb746c230a46c69fe

          • C:\Users\Admin\AppData\Local\Temp\nskBB48.tmp\nsExec.dll

            Filesize

            6KB

            MD5

            acc2b699edfea5bf5aae45aba3a41e96

            SHA1

            d2accf4d494e43ceb2cff69abe4dd17147d29cc2

            SHA256

            168a974eaa3f588d759db3f47c1a9fdc3494ba1fa1a73a84e5e3b2a4d58abd7e

            SHA512

            e29ea10ada98c71a18273b04f44f385b120d4e8473e441ce5748cfa44a23648814f2656f429b85440157988c88de776c6ac008dc38bf09cbb746c230a46c69fe

          • C:\Users\Admin\AppData\Local\Temp\nskBB48.tmp\nsExec.dll

            Filesize

            6KB

            MD5

            acc2b699edfea5bf5aae45aba3a41e96

            SHA1

            d2accf4d494e43ceb2cff69abe4dd17147d29cc2

            SHA256

            168a974eaa3f588d759db3f47c1a9fdc3494ba1fa1a73a84e5e3b2a4d58abd7e

            SHA512

            e29ea10ada98c71a18273b04f44f385b120d4e8473e441ce5748cfa44a23648814f2656f429b85440157988c88de776c6ac008dc38bf09cbb746c230a46c69fe

          • C:\Users\Admin\AppData\Local\Temp\nskBB48.tmp\nsExec.dll

            Filesize

            6KB

            MD5

            acc2b699edfea5bf5aae45aba3a41e96

            SHA1

            d2accf4d494e43ceb2cff69abe4dd17147d29cc2

            SHA256

            168a974eaa3f588d759db3f47c1a9fdc3494ba1fa1a73a84e5e3b2a4d58abd7e

            SHA512

            e29ea10ada98c71a18273b04f44f385b120d4e8473e441ce5748cfa44a23648814f2656f429b85440157988c88de776c6ac008dc38bf09cbb746c230a46c69fe

          • C:\Users\Admin\AppData\Local\Temp\nskBB48.tmp\nsExec.dll

            Filesize

            6KB

            MD5

            acc2b699edfea5bf5aae45aba3a41e96

            SHA1

            d2accf4d494e43ceb2cff69abe4dd17147d29cc2

            SHA256

            168a974eaa3f588d759db3f47c1a9fdc3494ba1fa1a73a84e5e3b2a4d58abd7e

            SHA512

            e29ea10ada98c71a18273b04f44f385b120d4e8473e441ce5748cfa44a23648814f2656f429b85440157988c88de776c6ac008dc38bf09cbb746c230a46c69fe

          • C:\Users\Admin\AppData\Local\Temp\nskBB48.tmp\nsExec.dll

            Filesize

            6KB

            MD5

            acc2b699edfea5bf5aae45aba3a41e96

            SHA1

            d2accf4d494e43ceb2cff69abe4dd17147d29cc2

            SHA256

            168a974eaa3f588d759db3f47c1a9fdc3494ba1fa1a73a84e5e3b2a4d58abd7e

            SHA512

            e29ea10ada98c71a18273b04f44f385b120d4e8473e441ce5748cfa44a23648814f2656f429b85440157988c88de776c6ac008dc38bf09cbb746c230a46c69fe

          • C:\Users\Admin\AppData\Local\Temp\nskBB48.tmp\nsExec.dll

            Filesize

            6KB

            MD5

            acc2b699edfea5bf5aae45aba3a41e96

            SHA1

            d2accf4d494e43ceb2cff69abe4dd17147d29cc2

            SHA256

            168a974eaa3f588d759db3f47c1a9fdc3494ba1fa1a73a84e5e3b2a4d58abd7e

            SHA512

            e29ea10ada98c71a18273b04f44f385b120d4e8473e441ce5748cfa44a23648814f2656f429b85440157988c88de776c6ac008dc38bf09cbb746c230a46c69fe

          • C:\Users\Admin\AppData\Local\Temp\nskBB48.tmp\nsExec.dll

            Filesize

            6KB

            MD5

            acc2b699edfea5bf5aae45aba3a41e96

            SHA1

            d2accf4d494e43ceb2cff69abe4dd17147d29cc2

            SHA256

            168a974eaa3f588d759db3f47c1a9fdc3494ba1fa1a73a84e5e3b2a4d58abd7e

            SHA512

            e29ea10ada98c71a18273b04f44f385b120d4e8473e441ce5748cfa44a23648814f2656f429b85440157988c88de776c6ac008dc38bf09cbb746c230a46c69fe

          • C:\Windows\SysWOW64\hfnapi.dll

            Filesize

            106KB

            MD5

            aea9df13af36216d0280741ca0d57db1

            SHA1

            e3e1ae737371d225ff29a43d955467e2f3fba12e

            SHA256

            b8772ccfe53f9af7e28ac521c27ffe725044d8835bd080f8ca26f3ed7718d443

            SHA512

            a6021479d9dcddcc12a9836c0f3acdaa4b4e36db3ad5ff0a843017c6b31559abe175581855db46910b12c723441ae624379c95772f4c0592ba6f4e6e11c198b2

          • C:\Windows\SysWOW64\hfnapi.dll

            Filesize

            106KB

            MD5

            aea9df13af36216d0280741ca0d57db1

            SHA1

            e3e1ae737371d225ff29a43d955467e2f3fba12e

            SHA256

            b8772ccfe53f9af7e28ac521c27ffe725044d8835bd080f8ca26f3ed7718d443

            SHA512

            a6021479d9dcddcc12a9836c0f3acdaa4b4e36db3ad5ff0a843017c6b31559abe175581855db46910b12c723441ae624379c95772f4c0592ba6f4e6e11c198b2

          • C:\Windows\SysWOW64\hfnapi.dll

            Filesize

            106KB

            MD5

            aea9df13af36216d0280741ca0d57db1

            SHA1

            e3e1ae737371d225ff29a43d955467e2f3fba12e

            SHA256

            b8772ccfe53f9af7e28ac521c27ffe725044d8835bd080f8ca26f3ed7718d443

            SHA512

            a6021479d9dcddcc12a9836c0f3acdaa4b4e36db3ad5ff0a843017c6b31559abe175581855db46910b12c723441ae624379c95772f4c0592ba6f4e6e11c198b2

          • C:\Windows\SysWOW64\hfnapi.dll

            Filesize

            106KB

            MD5

            aea9df13af36216d0280741ca0d57db1

            SHA1

            e3e1ae737371d225ff29a43d955467e2f3fba12e

            SHA256

            b8772ccfe53f9af7e28ac521c27ffe725044d8835bd080f8ca26f3ed7718d443

            SHA512

            a6021479d9dcddcc12a9836c0f3acdaa4b4e36db3ad5ff0a843017c6b31559abe175581855db46910b12c723441ae624379c95772f4c0592ba6f4e6e11c198b2

          • C:\Windows\SysWOW64\hfpapi.dll

            Filesize

            244KB

            MD5

            277816a4822aff3fa61fe058073649ca

            SHA1

            250230b8edf64bce5bd4a6ac12f5f0ed235389a4

            SHA256

            498e255ad98122e4d63bd88ac8bd5bbbc4510c05cad71bbb579053d6950a9547

            SHA512

            de2a40586e4f516d1bbaa2f12d349927dadafcd195f0eef5691c5a3f8fb7aae9f462a1af7fe3ad3636585e0f028be10397ffd013fc3a065c60cde270c6229eb2

          • C:\Windows\SysWOW64\hfpapi.dll

            Filesize

            244KB

            MD5

            277816a4822aff3fa61fe058073649ca

            SHA1

            250230b8edf64bce5bd4a6ac12f5f0ed235389a4

            SHA256

            498e255ad98122e4d63bd88ac8bd5bbbc4510c05cad71bbb579053d6950a9547

            SHA512

            de2a40586e4f516d1bbaa2f12d349927dadafcd195f0eef5691c5a3f8fb7aae9f462a1af7fe3ad3636585e0f028be10397ffd013fc3a065c60cde270c6229eb2

          • C:\Windows\SysWOW64\hfpapi.dll

            Filesize

            244KB

            MD5

            277816a4822aff3fa61fe058073649ca

            SHA1

            250230b8edf64bce5bd4a6ac12f5f0ed235389a4

            SHA256

            498e255ad98122e4d63bd88ac8bd5bbbc4510c05cad71bbb579053d6950a9547

            SHA512

            de2a40586e4f516d1bbaa2f12d349927dadafcd195f0eef5691c5a3f8fb7aae9f462a1af7fe3ad3636585e0f028be10397ffd013fc3a065c60cde270c6229eb2

          • C:\Windows\SysWOW64\installd.exe

            Filesize

            108KB

            MD5

            68374f30f881cd3cb04654038af50353

            SHA1

            741576b48b16fed11806b45ef94a1325130dd4f5

            SHA256

            2fcd0b513fdeef73b24c568572cc230f31a164a3244d9e8777765a1e1ac52a5a

            SHA512

            214e603447d7b2b9e68d406a59126a82634fbd1293fbce6cdc40402f868f83635c5b960c660321c0c0852cdc45ba96a69242bd7df1febfa4efe385a4ea228f4f

          • C:\Windows\SysWOW64\installd.exe

            Filesize

            108KB

            MD5

            68374f30f881cd3cb04654038af50353

            SHA1

            741576b48b16fed11806b45ef94a1325130dd4f5

            SHA256

            2fcd0b513fdeef73b24c568572cc230f31a164a3244d9e8777765a1e1ac52a5a

            SHA512

            214e603447d7b2b9e68d406a59126a82634fbd1293fbce6cdc40402f868f83635c5b960c660321c0c0852cdc45ba96a69242bd7df1febfa4efe385a4ea228f4f

          • C:\Windows\SysWOW64\nethtsrv.exe

            Filesize

            176KB

            MD5

            bb7b11a465ea22a8f4e123fc846e58aa

            SHA1

            12964724e0a943b88531aeac07fb89e3a13aa1fe

            SHA256

            fdfa2acb8eafd614e3732a72b3ec24c30137d6e406f6ff5a3f3967868af60ab6

            SHA512

            b55e5212c3f0d1e60819c75edc1a82b8c37b50da48c5035e46915f00d29cc77e05df97d6b7acb2f8ca3eb6f6bfdb60e377149efee2413d606f463ba54328e2f1

          • C:\Windows\SysWOW64\nethtsrv.exe

            Filesize

            176KB

            MD5

            bb7b11a465ea22a8f4e123fc846e58aa

            SHA1

            12964724e0a943b88531aeac07fb89e3a13aa1fe

            SHA256

            fdfa2acb8eafd614e3732a72b3ec24c30137d6e406f6ff5a3f3967868af60ab6

            SHA512

            b55e5212c3f0d1e60819c75edc1a82b8c37b50da48c5035e46915f00d29cc77e05df97d6b7acb2f8ca3eb6f6bfdb60e377149efee2413d606f463ba54328e2f1

          • C:\Windows\SysWOW64\nethtsrv.exe

            Filesize

            176KB

            MD5

            bb7b11a465ea22a8f4e123fc846e58aa

            SHA1

            12964724e0a943b88531aeac07fb89e3a13aa1fe

            SHA256

            fdfa2acb8eafd614e3732a72b3ec24c30137d6e406f6ff5a3f3967868af60ab6

            SHA512

            b55e5212c3f0d1e60819c75edc1a82b8c37b50da48c5035e46915f00d29cc77e05df97d6b7acb2f8ca3eb6f6bfdb60e377149efee2413d606f463ba54328e2f1

          • C:\Windows\SysWOW64\netupdsrv.exe

            Filesize

            159KB

            MD5

            580b64b00ee9224e3161e75d486cdfff

            SHA1

            f7e3de5bef75e027a764ee94b3225e78ec88d9ca

            SHA256

            9070ff2e6f544157af4d0455dbf554a3b578e56ec345ebfe8a51d8bc66025fee

            SHA512

            eafc0f05b66c2d3af50fac5922553fceea400c24f5b7535bc3c90acb015b9bb9e0d87eca517775e22cde88e9358839789d9c1d4805dd0148c0873f7d773b73f3

          • C:\Windows\SysWOW64\netupdsrv.exe

            Filesize

            159KB

            MD5

            580b64b00ee9224e3161e75d486cdfff

            SHA1

            f7e3de5bef75e027a764ee94b3225e78ec88d9ca

            SHA256

            9070ff2e6f544157af4d0455dbf554a3b578e56ec345ebfe8a51d8bc66025fee

            SHA512

            eafc0f05b66c2d3af50fac5922553fceea400c24f5b7535bc3c90acb015b9bb9e0d87eca517775e22cde88e9358839789d9c1d4805dd0148c0873f7d773b73f3

          • C:\Windows\SysWOW64\netupdsrv.exe

            Filesize

            159KB

            MD5

            580b64b00ee9224e3161e75d486cdfff

            SHA1

            f7e3de5bef75e027a764ee94b3225e78ec88d9ca

            SHA256

            9070ff2e6f544157af4d0455dbf554a3b578e56ec345ebfe8a51d8bc66025fee

            SHA512

            eafc0f05b66c2d3af50fac5922553fceea400c24f5b7535bc3c90acb015b9bb9e0d87eca517775e22cde88e9358839789d9c1d4805dd0148c0873f7d773b73f3

          • memory/204-160-0x0000000000000000-mapping.dmp

          • memory/1396-147-0x0000000000000000-mapping.dmp

          • memory/1508-137-0x0000000000000000-mapping.dmp

          • memory/1524-142-0x0000000000000000-mapping.dmp

          • memory/2120-135-0x0000000000000000-mapping.dmp

          • memory/3500-159-0x0000000000000000-mapping.dmp

          • memory/3828-167-0x0000000000000000-mapping.dmp

          • memory/4200-153-0x0000000000360000-0x00000000007BE000-memory.dmp

            Filesize

            4.4MB

          • memory/4200-136-0x0000000000360000-0x00000000007BE000-memory.dmp

            Filesize

            4.4MB

          • memory/4200-169-0x0000000000360000-0x00000000007BE000-memory.dmp

            Filesize

            4.4MB

          • memory/4484-166-0x0000000000000000-mapping.dmp

          • memory/4876-154-0x0000000000000000-mapping.dmp

          • memory/4888-140-0x0000000000000000-mapping.dmp

          • memory/5116-141-0x0000000000000000-mapping.dmp