Analysis

  • max time kernel
    148s
  • max time network
    168s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20221111-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20221111-enlocale:en-usos:windows10-2004-x64system
  • submitted
    23-11-2022 10:27

General

  • Target

    447e0c46c7ca74867b11e0acf27414b1f4415c8519d88a20fe8f736619189b13.exe

  • Size

    601KB

  • MD5

    aa94da405b5ab5774e69835a5c9aa620

  • SHA1

    c60b09cbc34186d731b590d0fb75b17f7cd5adb7

  • SHA256

    447e0c46c7ca74867b11e0acf27414b1f4415c8519d88a20fe8f736619189b13

  • SHA512

    14e0c6cc9710ec932a97729a776f16767bca590e980f48fc8bec50c8c2b654c99bff5a64db9cd7687add18259e721325bfe3e3e6a160c2ac4dc9c71b20a1a753

  • SSDEEP

    12288:XIny5DYTD+0nrRNF+fjsq9cAuWIrzkQSaulWj5fdUp:/UTD+O8fQycAu9YaulO5e

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\447e0c46c7ca74867b11e0acf27414b1f4415c8519d88a20fe8f736619189b13.exe
    "C:\Users\Admin\AppData\Local\Temp\447e0c46c7ca74867b11e0acf27414b1f4415c8519d88a20fe8f736619189b13.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:4952
    • C:\Windows\SysWOW64\net.exe
      net stop nethttpservice
      2⤵
      • Suspicious use of WriteProcessMemory
      PID:1116
      • C:\Windows\SysWOW64\net1.exe
        C:\Windows\system32\net1 stop nethttpservice
        3⤵
          PID:4688
      • C:\Windows\SysWOW64\net.exe
        net stop serviceupdater
        2⤵
        • Suspicious use of WriteProcessMemory
        PID:2404
        • C:\Windows\SysWOW64\net1.exe
          C:\Windows\system32\net1 stop serviceupdater
          3⤵
            PID:3520
        • C:\Windows\SysWOW64\installd.exe
          "C:\Windows\system32\installd.exe" nethfdrv
          2⤵
          • Executes dropped EXE
          • Loads dropped DLL
          PID:2448
        • C:\Windows\SysWOW64\nethtsrv.exe
          "C:\Windows\system32\nethtsrv.exe" -nfdi
          2⤵
          • Executes dropped EXE
          • Loads dropped DLL
          PID:2016
        • C:\Windows\SysWOW64\netupdsrv.exe
          "C:\Windows\system32\netupdsrv.exe" -nfdi
          2⤵
          • Executes dropped EXE
          PID:780
        • C:\Windows\SysWOW64\net.exe
          net start nethttpservice
          2⤵
          • Suspicious use of WriteProcessMemory
          PID:1684
          • C:\Windows\SysWOW64\net1.exe
            C:\Windows\system32\net1 start nethttpservice
            3⤵
              PID:2668
          • C:\Windows\SysWOW64\net.exe
            net start serviceupdater
            2⤵
            • Suspicious use of WriteProcessMemory
            PID:4152
            • C:\Windows\SysWOW64\net1.exe
              C:\Windows\system32\net1 start serviceupdater
              3⤵
                PID:1632
          • 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:1812
          • C:\Windows\SysWOW64\netupdsrv.exe
            C:\Windows\SysWOW64\netupdsrv.exe
            1⤵
            • Executes dropped EXE
            PID:2436

          Network

          MITRE ATT&CK Enterprise v6

          Replay Monitor

          Loading Replay Monitor...

          Downloads

          • C:\Users\Admin\AppData\Local\Temp\nsu5AF.tmp\System.dll

            Filesize

            11KB

            MD5

            c17103ae9072a06da581dec998343fc1

            SHA1

            b72148c6bdfaada8b8c3f950e610ee7cf1da1f8d

            SHA256

            dc58d8ad81cacb0c1ed72e33bff8f23ea40b5252b5bb55d393a0903e6819ae2f

            SHA512

            d32a71aaef18e993f28096d536e41c4d016850721b31171513ce28bbd805a54fd290b7c3e9d935f72e676a1acfb4f0dcc89d95040a0dd29f2b6975855c18986f

          • C:\Users\Admin\AppData\Local\Temp\nsu5AF.tmp\nsExec.dll

            Filesize

            6KB

            MD5

            acc2b699edfea5bf5aae45aba3a41e96

            SHA1

            d2accf4d494e43ceb2cff69abe4dd17147d29cc2

            SHA256

            168a974eaa3f588d759db3f47c1a9fdc3494ba1fa1a73a84e5e3b2a4d58abd7e

            SHA512

            e29ea10ada98c71a18273b04f44f385b120d4e8473e441ce5748cfa44a23648814f2656f429b85440157988c88de776c6ac008dc38bf09cbb746c230a46c69fe

          • C:\Users\Admin\AppData\Local\Temp\nsu5AF.tmp\nsExec.dll

            Filesize

            6KB

            MD5

            acc2b699edfea5bf5aae45aba3a41e96

            SHA1

            d2accf4d494e43ceb2cff69abe4dd17147d29cc2

            SHA256

            168a974eaa3f588d759db3f47c1a9fdc3494ba1fa1a73a84e5e3b2a4d58abd7e

            SHA512

            e29ea10ada98c71a18273b04f44f385b120d4e8473e441ce5748cfa44a23648814f2656f429b85440157988c88de776c6ac008dc38bf09cbb746c230a46c69fe

          • C:\Users\Admin\AppData\Local\Temp\nsu5AF.tmp\nsExec.dll

            Filesize

            6KB

            MD5

            acc2b699edfea5bf5aae45aba3a41e96

            SHA1

            d2accf4d494e43ceb2cff69abe4dd17147d29cc2

            SHA256

            168a974eaa3f588d759db3f47c1a9fdc3494ba1fa1a73a84e5e3b2a4d58abd7e

            SHA512

            e29ea10ada98c71a18273b04f44f385b120d4e8473e441ce5748cfa44a23648814f2656f429b85440157988c88de776c6ac008dc38bf09cbb746c230a46c69fe

          • C:\Users\Admin\AppData\Local\Temp\nsu5AF.tmp\nsExec.dll

            Filesize

            6KB

            MD5

            acc2b699edfea5bf5aae45aba3a41e96

            SHA1

            d2accf4d494e43ceb2cff69abe4dd17147d29cc2

            SHA256

            168a974eaa3f588d759db3f47c1a9fdc3494ba1fa1a73a84e5e3b2a4d58abd7e

            SHA512

            e29ea10ada98c71a18273b04f44f385b120d4e8473e441ce5748cfa44a23648814f2656f429b85440157988c88de776c6ac008dc38bf09cbb746c230a46c69fe

          • C:\Users\Admin\AppData\Local\Temp\nsu5AF.tmp\nsExec.dll

            Filesize

            6KB

            MD5

            acc2b699edfea5bf5aae45aba3a41e96

            SHA1

            d2accf4d494e43ceb2cff69abe4dd17147d29cc2

            SHA256

            168a974eaa3f588d759db3f47c1a9fdc3494ba1fa1a73a84e5e3b2a4d58abd7e

            SHA512

            e29ea10ada98c71a18273b04f44f385b120d4e8473e441ce5748cfa44a23648814f2656f429b85440157988c88de776c6ac008dc38bf09cbb746c230a46c69fe

          • C:\Users\Admin\AppData\Local\Temp\nsu5AF.tmp\nsExec.dll

            Filesize

            6KB

            MD5

            acc2b699edfea5bf5aae45aba3a41e96

            SHA1

            d2accf4d494e43ceb2cff69abe4dd17147d29cc2

            SHA256

            168a974eaa3f588d759db3f47c1a9fdc3494ba1fa1a73a84e5e3b2a4d58abd7e

            SHA512

            e29ea10ada98c71a18273b04f44f385b120d4e8473e441ce5748cfa44a23648814f2656f429b85440157988c88de776c6ac008dc38bf09cbb746c230a46c69fe

          • C:\Users\Admin\AppData\Local\Temp\nsu5AF.tmp\nsExec.dll

            Filesize

            6KB

            MD5

            acc2b699edfea5bf5aae45aba3a41e96

            SHA1

            d2accf4d494e43ceb2cff69abe4dd17147d29cc2

            SHA256

            168a974eaa3f588d759db3f47c1a9fdc3494ba1fa1a73a84e5e3b2a4d58abd7e

            SHA512

            e29ea10ada98c71a18273b04f44f385b120d4e8473e441ce5748cfa44a23648814f2656f429b85440157988c88de776c6ac008dc38bf09cbb746c230a46c69fe

          • C:\Users\Admin\AppData\Local\Temp\nsu5AF.tmp\nsExec.dll

            Filesize

            6KB

            MD5

            acc2b699edfea5bf5aae45aba3a41e96

            SHA1

            d2accf4d494e43ceb2cff69abe4dd17147d29cc2

            SHA256

            168a974eaa3f588d759db3f47c1a9fdc3494ba1fa1a73a84e5e3b2a4d58abd7e

            SHA512

            e29ea10ada98c71a18273b04f44f385b120d4e8473e441ce5748cfa44a23648814f2656f429b85440157988c88de776c6ac008dc38bf09cbb746c230a46c69fe

          • C:\Windows\SysWOW64\hfnapi.dll

            Filesize

            106KB

            MD5

            c71e2e63e4bc36bd3d0a6172e57e60a4

            SHA1

            fc69ca2461fa119b585b562ba9672c1e8251b2de

            SHA256

            8ca5cc341e5d1fe4951eb5db5f67264c271c0d15250f7b8610541816870fa020

            SHA512

            95bd11308c5c4e00efc9d8b8dadefd528c7323dabafabb28a25df7cdf5751466a283308504cdf74120b9eb940b434aa124b925c10b088edd99df27cf307a2a33

          • C:\Windows\SysWOW64\hfnapi.dll

            Filesize

            106KB

            MD5

            c71e2e63e4bc36bd3d0a6172e57e60a4

            SHA1

            fc69ca2461fa119b585b562ba9672c1e8251b2de

            SHA256

            8ca5cc341e5d1fe4951eb5db5f67264c271c0d15250f7b8610541816870fa020

            SHA512

            95bd11308c5c4e00efc9d8b8dadefd528c7323dabafabb28a25df7cdf5751466a283308504cdf74120b9eb940b434aa124b925c10b088edd99df27cf307a2a33

          • C:\Windows\SysWOW64\hfnapi.dll

            Filesize

            106KB

            MD5

            c71e2e63e4bc36bd3d0a6172e57e60a4

            SHA1

            fc69ca2461fa119b585b562ba9672c1e8251b2de

            SHA256

            8ca5cc341e5d1fe4951eb5db5f67264c271c0d15250f7b8610541816870fa020

            SHA512

            95bd11308c5c4e00efc9d8b8dadefd528c7323dabafabb28a25df7cdf5751466a283308504cdf74120b9eb940b434aa124b925c10b088edd99df27cf307a2a33

          • C:\Windows\SysWOW64\hfnapi.dll

            Filesize

            106KB

            MD5

            c71e2e63e4bc36bd3d0a6172e57e60a4

            SHA1

            fc69ca2461fa119b585b562ba9672c1e8251b2de

            SHA256

            8ca5cc341e5d1fe4951eb5db5f67264c271c0d15250f7b8610541816870fa020

            SHA512

            95bd11308c5c4e00efc9d8b8dadefd528c7323dabafabb28a25df7cdf5751466a283308504cdf74120b9eb940b434aa124b925c10b088edd99df27cf307a2a33

          • C:\Windows\SysWOW64\hfpapi.dll

            Filesize

            241KB

            MD5

            4b53e20bb2e1e73ba29ba7ab93ec22f8

            SHA1

            9a4cb2939030a0c516c4ca7034ce255bd28e58b0

            SHA256

            017ce0b2273465952d89799a24ee6b8bb7ddebd2cefc2857ca0e45c22e9558bd

            SHA512

            834a92236b727a8b0272e1b05e6d72fc805588cb1a34f05652de4423d89c516502ffba0c8a6d873f433410d427f44cc8a6a72184aa1c4fc8d63debf5b2974daa

          • C:\Windows\SysWOW64\hfpapi.dll

            Filesize

            241KB

            MD5

            4b53e20bb2e1e73ba29ba7ab93ec22f8

            SHA1

            9a4cb2939030a0c516c4ca7034ce255bd28e58b0

            SHA256

            017ce0b2273465952d89799a24ee6b8bb7ddebd2cefc2857ca0e45c22e9558bd

            SHA512

            834a92236b727a8b0272e1b05e6d72fc805588cb1a34f05652de4423d89c516502ffba0c8a6d873f433410d427f44cc8a6a72184aa1c4fc8d63debf5b2974daa

          • C:\Windows\SysWOW64\hfpapi.dll

            Filesize

            241KB

            MD5

            4b53e20bb2e1e73ba29ba7ab93ec22f8

            SHA1

            9a4cb2939030a0c516c4ca7034ce255bd28e58b0

            SHA256

            017ce0b2273465952d89799a24ee6b8bb7ddebd2cefc2857ca0e45c22e9558bd

            SHA512

            834a92236b727a8b0272e1b05e6d72fc805588cb1a34f05652de4423d89c516502ffba0c8a6d873f433410d427f44cc8a6a72184aa1c4fc8d63debf5b2974daa

          • C:\Windows\SysWOW64\installd.exe

            Filesize

            108KB

            MD5

            eee420b7f5afb620c475c45cbe1cced3

            SHA1

            71e65e82145c14262a707d95bb5d47de2d6b137a

            SHA256

            d553c3089f7960b199899db63d3640b722317d696c6aba6f9c9961ccc98adfef

            SHA512

            048b9c58cb595c4ea24548dfaaf032dbaed3399eb686308d4c5bfe2bea7b04f6787bdd5de48f4cb64fc05ef1e993917c3d965abff1addf4f2a43c20574704ec8

          • C:\Windows\SysWOW64\installd.exe

            Filesize

            108KB

            MD5

            eee420b7f5afb620c475c45cbe1cced3

            SHA1

            71e65e82145c14262a707d95bb5d47de2d6b137a

            SHA256

            d553c3089f7960b199899db63d3640b722317d696c6aba6f9c9961ccc98adfef

            SHA512

            048b9c58cb595c4ea24548dfaaf032dbaed3399eb686308d4c5bfe2bea7b04f6787bdd5de48f4cb64fc05ef1e993917c3d965abff1addf4f2a43c20574704ec8

          • C:\Windows\SysWOW64\nethtsrv.exe

            Filesize

            176KB

            MD5

            5eafb2148776b9313d5b986aa2abb568

            SHA1

            1ab057ce025443d9c61ac5e3b90d7650c3e1a327

            SHA256

            ff879f9785fd8bc21480e310d8dfb0cafbf3017647ca9f148fc9a823f3271b4a

            SHA512

            3be26628260478d4c2b20e286e682bc4cf467c5379fbc089735d5765fe80673d3e882685da5c8b2273d68ea28ea09892021a007269b82bfdf9e08bac7fcd1a22

          • C:\Windows\SysWOW64\nethtsrv.exe

            Filesize

            176KB

            MD5

            5eafb2148776b9313d5b986aa2abb568

            SHA1

            1ab057ce025443d9c61ac5e3b90d7650c3e1a327

            SHA256

            ff879f9785fd8bc21480e310d8dfb0cafbf3017647ca9f148fc9a823f3271b4a

            SHA512

            3be26628260478d4c2b20e286e682bc4cf467c5379fbc089735d5765fe80673d3e882685da5c8b2273d68ea28ea09892021a007269b82bfdf9e08bac7fcd1a22

          • C:\Windows\SysWOW64\nethtsrv.exe

            Filesize

            176KB

            MD5

            5eafb2148776b9313d5b986aa2abb568

            SHA1

            1ab057ce025443d9c61ac5e3b90d7650c3e1a327

            SHA256

            ff879f9785fd8bc21480e310d8dfb0cafbf3017647ca9f148fc9a823f3271b4a

            SHA512

            3be26628260478d4c2b20e286e682bc4cf467c5379fbc089735d5765fe80673d3e882685da5c8b2273d68ea28ea09892021a007269b82bfdf9e08bac7fcd1a22

          • C:\Windows\SysWOW64\netupdsrv.exe

            Filesize

            158KB

            MD5

            5747ca7d5e746ec5f3089150b476ffb5

            SHA1

            cecaae945d62291c95e4698233d0e8730465d01f

            SHA256

            be3b23072f181171e467f4236231e29251f965d75a3baf38083b545c0691b181

            SHA512

            69e6b733b8440c2948224670c523469101fc4eff361e6b0c3241218e0656e8c920f1054cc977b095bc70bfe203ff2b74ce8c27fab0ffedaab817734d04aade7b

          • C:\Windows\SysWOW64\netupdsrv.exe

            Filesize

            158KB

            MD5

            5747ca7d5e746ec5f3089150b476ffb5

            SHA1

            cecaae945d62291c95e4698233d0e8730465d01f

            SHA256

            be3b23072f181171e467f4236231e29251f965d75a3baf38083b545c0691b181

            SHA512

            69e6b733b8440c2948224670c523469101fc4eff361e6b0c3241218e0656e8c920f1054cc977b095bc70bfe203ff2b74ce8c27fab0ffedaab817734d04aade7b

          • C:\Windows\SysWOW64\netupdsrv.exe

            Filesize

            158KB

            MD5

            5747ca7d5e746ec5f3089150b476ffb5

            SHA1

            cecaae945d62291c95e4698233d0e8730465d01f

            SHA256

            be3b23072f181171e467f4236231e29251f965d75a3baf38083b545c0691b181

            SHA512

            69e6b733b8440c2948224670c523469101fc4eff361e6b0c3241218e0656e8c920f1054cc977b095bc70bfe203ff2b74ce8c27fab0ffedaab817734d04aade7b

          • memory/780-157-0x0000000000000000-mapping.dmp

          • memory/1116-140-0x0000000000000000-mapping.dmp

          • memory/1632-170-0x0000000000000000-mapping.dmp

          • memory/1684-162-0x0000000000000000-mapping.dmp

          • memory/2016-151-0x0000000000000000-mapping.dmp

          • memory/2404-144-0x0000000000000000-mapping.dmp

          • memory/2448-146-0x0000000000000000-mapping.dmp

          • memory/2668-163-0x0000000000000000-mapping.dmp

          • memory/3520-145-0x0000000000000000-mapping.dmp

          • memory/4152-169-0x0000000000000000-mapping.dmp

          • memory/4688-141-0x0000000000000000-mapping.dmp

          • memory/4952-135-0x0000000000360000-0x00000000007BE000-memory.dmp

            Filesize

            4.4MB

          • memory/4952-136-0x0000000000360000-0x00000000007BE000-memory.dmp

            Filesize

            4.4MB

          • memory/4952-172-0x0000000000360000-0x00000000007BE000-memory.dmp

            Filesize

            4.4MB