Analysis

  • max time kernel
    167s
  • max time network
    185s
  • 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 10:32

General

  • Target

    1bd6e6171ce88274fe171b0217ce2f13c327d4595653bac15b2d38dc28cb2539.exe

  • Size

    603KB

  • MD5

    8e2504633b6fd960a05732b6690648c2

  • SHA1

    a3d48be96631642d5080493ea7aa0ab4128ef978

  • SHA256

    1bd6e6171ce88274fe171b0217ce2f13c327d4595653bac15b2d38dc28cb2539

  • SHA512

    9c77f4d4b07d59dd6a56477a716a60e22cc4191173403537103559be0b75abca051327dd4cb6ad15fffad170bb61a6de2eaca8622344366d278865b6b45ddb26

  • SSDEEP

    12288:1Iny5DYTTAhS+YiW2njM+IFHJkfzteSIyEePW:BUTTArRWNPkpIyEePW

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\1bd6e6171ce88274fe171b0217ce2f13c327d4595653bac15b2d38dc28cb2539.exe
    "C:\Users\Admin\AppData\Local\Temp\1bd6e6171ce88274fe171b0217ce2f13c327d4595653bac15b2d38dc28cb2539.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:2676
    • C:\Windows\SysWOW64\net.exe
      net stop nethttpservice
      2⤵
      • Suspicious use of WriteProcessMemory
      PID:632
      • C:\Windows\SysWOW64\net1.exe
        C:\Windows\system32\net1 stop nethttpservice
        3⤵
          PID:316
      • C:\Windows\SysWOW64\net.exe
        net stop serviceupdater
        2⤵
        • Suspicious use of WriteProcessMemory
        PID:4224
        • C:\Windows\SysWOW64\net1.exe
          C:\Windows\system32\net1 stop serviceupdater
          3⤵
            PID:4436
        • C:\Windows\SysWOW64\installd.exe
          "C:\Windows\system32\installd.exe" nethfdrv
          2⤵
          • Executes dropped EXE
          • Loads dropped DLL
          PID:1940
        • C:\Windows\SysWOW64\nethtsrv.exe
          "C:\Windows\system32\nethtsrv.exe" -nfdi
          2⤵
          • Executes dropped EXE
          • Loads dropped DLL
          PID:2664
        • C:\Windows\SysWOW64\netupdsrv.exe
          "C:\Windows\system32\netupdsrv.exe" -nfdi
          2⤵
          • Executes dropped EXE
          PID:924
        • C:\Windows\SysWOW64\net.exe
          net start nethttpservice
          2⤵
          • Suspicious use of WriteProcessMemory
          PID:2096
          • C:\Windows\SysWOW64\net1.exe
            C:\Windows\system32\net1 start nethttpservice
            3⤵
              PID:3360
          • C:\Windows\SysWOW64\net.exe
            net start serviceupdater
            2⤵
            • Suspicious use of WriteProcessMemory
            PID:1456
            • C:\Windows\SysWOW64\net1.exe
              C:\Windows\system32\net1 start serviceupdater
              3⤵
                PID:3504
          • 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:444
          • C:\Windows\SysWOW64\netupdsrv.exe
            C:\Windows\SysWOW64\netupdsrv.exe
            1⤵
            • Executes dropped EXE
            PID:3596

          Network

          MITRE ATT&CK Enterprise v6

          Replay Monitor

          Loading Replay Monitor...

          Downloads

          • C:\Users\Admin\AppData\Local\Temp\nst409.tmp\System.dll

            Filesize

            11KB

            MD5

            c17103ae9072a06da581dec998343fc1

            SHA1

            b72148c6bdfaada8b8c3f950e610ee7cf1da1f8d

            SHA256

            dc58d8ad81cacb0c1ed72e33bff8f23ea40b5252b5bb55d393a0903e6819ae2f

            SHA512

            d32a71aaef18e993f28096d536e41c4d016850721b31171513ce28bbd805a54fd290b7c3e9d935f72e676a1acfb4f0dcc89d95040a0dd29f2b6975855c18986f

          • C:\Users\Admin\AppData\Local\Temp\nst409.tmp\nsExec.dll

            Filesize

            6KB

            MD5

            acc2b699edfea5bf5aae45aba3a41e96

            SHA1

            d2accf4d494e43ceb2cff69abe4dd17147d29cc2

            SHA256

            168a974eaa3f588d759db3f47c1a9fdc3494ba1fa1a73a84e5e3b2a4d58abd7e

            SHA512

            e29ea10ada98c71a18273b04f44f385b120d4e8473e441ce5748cfa44a23648814f2656f429b85440157988c88de776c6ac008dc38bf09cbb746c230a46c69fe

          • C:\Users\Admin\AppData\Local\Temp\nst409.tmp\nsExec.dll

            Filesize

            6KB

            MD5

            acc2b699edfea5bf5aae45aba3a41e96

            SHA1

            d2accf4d494e43ceb2cff69abe4dd17147d29cc2

            SHA256

            168a974eaa3f588d759db3f47c1a9fdc3494ba1fa1a73a84e5e3b2a4d58abd7e

            SHA512

            e29ea10ada98c71a18273b04f44f385b120d4e8473e441ce5748cfa44a23648814f2656f429b85440157988c88de776c6ac008dc38bf09cbb746c230a46c69fe

          • C:\Users\Admin\AppData\Local\Temp\nst409.tmp\nsExec.dll

            Filesize

            6KB

            MD5

            acc2b699edfea5bf5aae45aba3a41e96

            SHA1

            d2accf4d494e43ceb2cff69abe4dd17147d29cc2

            SHA256

            168a974eaa3f588d759db3f47c1a9fdc3494ba1fa1a73a84e5e3b2a4d58abd7e

            SHA512

            e29ea10ada98c71a18273b04f44f385b120d4e8473e441ce5748cfa44a23648814f2656f429b85440157988c88de776c6ac008dc38bf09cbb746c230a46c69fe

          • C:\Users\Admin\AppData\Local\Temp\nst409.tmp\nsExec.dll

            Filesize

            6KB

            MD5

            acc2b699edfea5bf5aae45aba3a41e96

            SHA1

            d2accf4d494e43ceb2cff69abe4dd17147d29cc2

            SHA256

            168a974eaa3f588d759db3f47c1a9fdc3494ba1fa1a73a84e5e3b2a4d58abd7e

            SHA512

            e29ea10ada98c71a18273b04f44f385b120d4e8473e441ce5748cfa44a23648814f2656f429b85440157988c88de776c6ac008dc38bf09cbb746c230a46c69fe

          • C:\Users\Admin\AppData\Local\Temp\nst409.tmp\nsExec.dll

            Filesize

            6KB

            MD5

            acc2b699edfea5bf5aae45aba3a41e96

            SHA1

            d2accf4d494e43ceb2cff69abe4dd17147d29cc2

            SHA256

            168a974eaa3f588d759db3f47c1a9fdc3494ba1fa1a73a84e5e3b2a4d58abd7e

            SHA512

            e29ea10ada98c71a18273b04f44f385b120d4e8473e441ce5748cfa44a23648814f2656f429b85440157988c88de776c6ac008dc38bf09cbb746c230a46c69fe

          • C:\Users\Admin\AppData\Local\Temp\nst409.tmp\nsExec.dll

            Filesize

            6KB

            MD5

            acc2b699edfea5bf5aae45aba3a41e96

            SHA1

            d2accf4d494e43ceb2cff69abe4dd17147d29cc2

            SHA256

            168a974eaa3f588d759db3f47c1a9fdc3494ba1fa1a73a84e5e3b2a4d58abd7e

            SHA512

            e29ea10ada98c71a18273b04f44f385b120d4e8473e441ce5748cfa44a23648814f2656f429b85440157988c88de776c6ac008dc38bf09cbb746c230a46c69fe

          • C:\Users\Admin\AppData\Local\Temp\nst409.tmp\nsExec.dll

            Filesize

            6KB

            MD5

            acc2b699edfea5bf5aae45aba3a41e96

            SHA1

            d2accf4d494e43ceb2cff69abe4dd17147d29cc2

            SHA256

            168a974eaa3f588d759db3f47c1a9fdc3494ba1fa1a73a84e5e3b2a4d58abd7e

            SHA512

            e29ea10ada98c71a18273b04f44f385b120d4e8473e441ce5748cfa44a23648814f2656f429b85440157988c88de776c6ac008dc38bf09cbb746c230a46c69fe

          • C:\Users\Admin\AppData\Local\Temp\nst409.tmp\nsExec.dll

            Filesize

            6KB

            MD5

            acc2b699edfea5bf5aae45aba3a41e96

            SHA1

            d2accf4d494e43ceb2cff69abe4dd17147d29cc2

            SHA256

            168a974eaa3f588d759db3f47c1a9fdc3494ba1fa1a73a84e5e3b2a4d58abd7e

            SHA512

            e29ea10ada98c71a18273b04f44f385b120d4e8473e441ce5748cfa44a23648814f2656f429b85440157988c88de776c6ac008dc38bf09cbb746c230a46c69fe

          • C:\Windows\SysWOW64\hfnapi.dll

            Filesize

            106KB

            MD5

            afd62768123a6b7d7341756cf9e99c6a

            SHA1

            ccc5cbdcb8a4016e584761be083c15d91f35da73

            SHA256

            0c7c13160746f43911cf8488cc0bae01695d13a02729b541b0643a98e5d03361

            SHA512

            01a3dddd45f6ea3477cb56f589c915c7dd849c047fcc124608a6a3fe7c22e9d4e46086c73fe57887a7e5bcf7b25efee34e3ffdc255bd860abc8844e6c456ab4b

          • C:\Windows\SysWOW64\hfnapi.dll

            Filesize

            106KB

            MD5

            afd62768123a6b7d7341756cf9e99c6a

            SHA1

            ccc5cbdcb8a4016e584761be083c15d91f35da73

            SHA256

            0c7c13160746f43911cf8488cc0bae01695d13a02729b541b0643a98e5d03361

            SHA512

            01a3dddd45f6ea3477cb56f589c915c7dd849c047fcc124608a6a3fe7c22e9d4e46086c73fe57887a7e5bcf7b25efee34e3ffdc255bd860abc8844e6c456ab4b

          • C:\Windows\SysWOW64\hfnapi.dll

            Filesize

            106KB

            MD5

            afd62768123a6b7d7341756cf9e99c6a

            SHA1

            ccc5cbdcb8a4016e584761be083c15d91f35da73

            SHA256

            0c7c13160746f43911cf8488cc0bae01695d13a02729b541b0643a98e5d03361

            SHA512

            01a3dddd45f6ea3477cb56f589c915c7dd849c047fcc124608a6a3fe7c22e9d4e46086c73fe57887a7e5bcf7b25efee34e3ffdc255bd860abc8844e6c456ab4b

          • C:\Windows\SysWOW64\hfnapi.dll

            Filesize

            106KB

            MD5

            afd62768123a6b7d7341756cf9e99c6a

            SHA1

            ccc5cbdcb8a4016e584761be083c15d91f35da73

            SHA256

            0c7c13160746f43911cf8488cc0bae01695d13a02729b541b0643a98e5d03361

            SHA512

            01a3dddd45f6ea3477cb56f589c915c7dd849c047fcc124608a6a3fe7c22e9d4e46086c73fe57887a7e5bcf7b25efee34e3ffdc255bd860abc8844e6c456ab4b

          • C:\Windows\SysWOW64\hfpapi.dll

            Filesize

            244KB

            MD5

            826d506483c4f5f1fb8489d7c5235c6f

            SHA1

            87d393b391d54c4a958925230e812ca8e2d5c4e3

            SHA256

            277832524f3778b520eba0d108a559494d0a8a825806759cbb8a8d510a43c0d4

            SHA512

            6a72901c2bdddd991886784dba725cdd8fae2a95747f63b33081a736cb3b0500c554170c3767ef52ad198424c626d9dd886d287c49d06b577b5ddcc68207b930

          • C:\Windows\SysWOW64\hfpapi.dll

            Filesize

            244KB

            MD5

            826d506483c4f5f1fb8489d7c5235c6f

            SHA1

            87d393b391d54c4a958925230e812ca8e2d5c4e3

            SHA256

            277832524f3778b520eba0d108a559494d0a8a825806759cbb8a8d510a43c0d4

            SHA512

            6a72901c2bdddd991886784dba725cdd8fae2a95747f63b33081a736cb3b0500c554170c3767ef52ad198424c626d9dd886d287c49d06b577b5ddcc68207b930

          • C:\Windows\SysWOW64\hfpapi.dll

            Filesize

            244KB

            MD5

            826d506483c4f5f1fb8489d7c5235c6f

            SHA1

            87d393b391d54c4a958925230e812ca8e2d5c4e3

            SHA256

            277832524f3778b520eba0d108a559494d0a8a825806759cbb8a8d510a43c0d4

            SHA512

            6a72901c2bdddd991886784dba725cdd8fae2a95747f63b33081a736cb3b0500c554170c3767ef52ad198424c626d9dd886d287c49d06b577b5ddcc68207b930

          • C:\Windows\SysWOW64\installd.exe

            Filesize

            108KB

            MD5

            d957897947f0ca2dd873f7c5f8c31889

            SHA1

            234f499c4fbd3518b065332a4baec41958fe0ed2

            SHA256

            58df19cef1965655578e3dfbd8a3c5b19634cee3e2112889dcf2eed764cc6659

            SHA512

            f11439951355d3e0f1c362d5a7041096a92f4866664f9de21d6ec3946e40ba451a474f544311be37a65b60a2510cb06f34a4a079169b1708d2491932fd48eeb1

          • C:\Windows\SysWOW64\installd.exe

            Filesize

            108KB

            MD5

            d957897947f0ca2dd873f7c5f8c31889

            SHA1

            234f499c4fbd3518b065332a4baec41958fe0ed2

            SHA256

            58df19cef1965655578e3dfbd8a3c5b19634cee3e2112889dcf2eed764cc6659

            SHA512

            f11439951355d3e0f1c362d5a7041096a92f4866664f9de21d6ec3946e40ba451a474f544311be37a65b60a2510cb06f34a4a079169b1708d2491932fd48eeb1

          • C:\Windows\SysWOW64\nethtsrv.exe

            Filesize

            176KB

            MD5

            6cf7b85fea0a6073436f33f617b07bd1

            SHA1

            a07026b02d468b2fc202a72a7f33fd0b1ba7a8f9

            SHA256

            67bbddf3a81fdabb823694200b085d09eaf513c03d3dbea7f6d4d7534d492b0c

            SHA512

            ab0bc380b7054ea8e449aac056c875e27ec3a1ec1bdef358e95d55ba59cec8ff5b6d35b18c5fc39c4dcb62738ed50ade6ccbcfd07d1308d210afb70e8e9140e0

          • C:\Windows\SysWOW64\nethtsrv.exe

            Filesize

            176KB

            MD5

            6cf7b85fea0a6073436f33f617b07bd1

            SHA1

            a07026b02d468b2fc202a72a7f33fd0b1ba7a8f9

            SHA256

            67bbddf3a81fdabb823694200b085d09eaf513c03d3dbea7f6d4d7534d492b0c

            SHA512

            ab0bc380b7054ea8e449aac056c875e27ec3a1ec1bdef358e95d55ba59cec8ff5b6d35b18c5fc39c4dcb62738ed50ade6ccbcfd07d1308d210afb70e8e9140e0

          • C:\Windows\SysWOW64\nethtsrv.exe

            Filesize

            176KB

            MD5

            6cf7b85fea0a6073436f33f617b07bd1

            SHA1

            a07026b02d468b2fc202a72a7f33fd0b1ba7a8f9

            SHA256

            67bbddf3a81fdabb823694200b085d09eaf513c03d3dbea7f6d4d7534d492b0c

            SHA512

            ab0bc380b7054ea8e449aac056c875e27ec3a1ec1bdef358e95d55ba59cec8ff5b6d35b18c5fc39c4dcb62738ed50ade6ccbcfd07d1308d210afb70e8e9140e0

          • C:\Windows\SysWOW64\netupdsrv.exe

            Filesize

            159KB

            MD5

            9ed57503583f90d9ba7396677c2f012e

            SHA1

            c2b294a72104fd948d7a3c35b208dfe1bb840eea

            SHA256

            07e829e0b95c5c10ffa5ba4bdba2b29da2727a819479beeceab0c2eb2201f0db

            SHA512

            02c05abb84b81c07bef7ab30975bf52f55427e57401e498401b3bbbb32f6ae8d4ca1bd790e229b0ecc4a14c95c23a7ccb3f260407623530ac8ef16c1b5a3c5ea

          • C:\Windows\SysWOW64\netupdsrv.exe

            Filesize

            159KB

            MD5

            9ed57503583f90d9ba7396677c2f012e

            SHA1

            c2b294a72104fd948d7a3c35b208dfe1bb840eea

            SHA256

            07e829e0b95c5c10ffa5ba4bdba2b29da2727a819479beeceab0c2eb2201f0db

            SHA512

            02c05abb84b81c07bef7ab30975bf52f55427e57401e498401b3bbbb32f6ae8d4ca1bd790e229b0ecc4a14c95c23a7ccb3f260407623530ac8ef16c1b5a3c5ea

          • C:\Windows\SysWOW64\netupdsrv.exe

            Filesize

            159KB

            MD5

            9ed57503583f90d9ba7396677c2f012e

            SHA1

            c2b294a72104fd948d7a3c35b208dfe1bb840eea

            SHA256

            07e829e0b95c5c10ffa5ba4bdba2b29da2727a819479beeceab0c2eb2201f0db

            SHA512

            02c05abb84b81c07bef7ab30975bf52f55427e57401e498401b3bbbb32f6ae8d4ca1bd790e229b0ecc4a14c95c23a7ccb3f260407623530ac8ef16c1b5a3c5ea

          • memory/316-137-0x0000000000000000-mapping.dmp

          • memory/632-136-0x0000000000000000-mapping.dmp

          • memory/924-154-0x0000000000000000-mapping.dmp

          • memory/1456-166-0x0000000000000000-mapping.dmp

          • memory/1940-143-0x0000000000000000-mapping.dmp

          • memory/2096-159-0x0000000000000000-mapping.dmp

          • memory/2664-148-0x0000000000000000-mapping.dmp

          • memory/2676-132-0x0000000000360000-0x00000000007BE000-memory.dmp

            Filesize

            4.4MB

          • memory/2676-138-0x0000000000360000-0x00000000007BE000-memory.dmp

            Filesize

            4.4MB

          • memory/2676-169-0x0000000000360000-0x00000000007BE000-memory.dmp

            Filesize

            4.4MB

          • memory/3360-160-0x0000000000000000-mapping.dmp

          • memory/3504-167-0x0000000000000000-mapping.dmp

          • memory/4224-141-0x0000000000000000-mapping.dmp

          • memory/4436-142-0x0000000000000000-mapping.dmp