Analysis

  • max time kernel
    143s
  • max time network
    167s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20221111-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20221111-enlocale:en-usos:windows10-2004-x64system
  • submitted
    24-11-2022 08:03

General

  • Target

    7489f235f32eb61062e0718c3591194334d5c19c1de749e1be1b760a9f4d1a31.exe

  • Size

    672KB

  • MD5

    0447c6be3371b26ad24caa891a6d5236

  • SHA1

    c65730cb5171958f92abc03e7ed28db3f3757794

  • SHA256

    7489f235f32eb61062e0718c3591194334d5c19c1de749e1be1b760a9f4d1a31

  • SHA512

    adb0e674929f2103402d94d7ba324b08e61a6fe9f0eb626cee7674985b8599d5acc9ced048189cd4ae00184ce4e296c2da14d22574a1c41b52cadc9bc3029f66

  • SSDEEP

    12288:V+1VlCxzXBInIv+iZXStVTmun/S2DBsP3LLZwcj+JehiK98OlCwY69xrzXYI8GyJ:2VIxy0hS/Tmun/bA3LLWS++iK1Cwl9xg

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\7489f235f32eb61062e0718c3591194334d5c19c1de749e1be1b760a9f4d1a31.exe
    "C:\Users\Admin\AppData\Local\Temp\7489f235f32eb61062e0718c3591194334d5c19c1de749e1be1b760a9f4d1a31.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:4528
    • C:\Windows\SysWOW64\net.exe
      net stop nethttpservice
      2⤵
      • Suspicious use of WriteProcessMemory
      PID:2040
      • C:\Windows\SysWOW64\net1.exe
        C:\Windows\system32\net1 stop nethttpservice
        3⤵
          PID:4260
      • C:\Windows\SysWOW64\net.exe
        net stop serviceupdater
        2⤵
        • Suspicious use of WriteProcessMemory
        PID:4780
        • C:\Windows\SysWOW64\net1.exe
          C:\Windows\system32\net1 stop serviceupdater
          3⤵
            PID:4936
        • C:\Windows\SysWOW64\installd.exe
          "C:\Windows\system32\installd.exe" nethfdrv
          2⤵
          • Executes dropped EXE
          • Loads dropped DLL
          PID:3512
        • C:\Windows\SysWOW64\nethtsrv.exe
          "C:\Windows\system32\nethtsrv.exe" -nfdi
          2⤵
          • Executes dropped EXE
          • Loads dropped DLL
          PID:220
        • C:\Windows\SysWOW64\netupdsrv.exe
          "C:\Windows\system32\netupdsrv.exe" -nfdi
          2⤵
          • Executes dropped EXE
          PID:4680
        • C:\Windows\SysWOW64\net.exe
          net start nethttpservice
          2⤵
          • Suspicious use of WriteProcessMemory
          PID:3304
          • C:\Windows\SysWOW64\net1.exe
            C:\Windows\system32\net1 start nethttpservice
            3⤵
              PID:3296
          • C:\Windows\SysWOW64\net.exe
            net start serviceupdater
            2⤵
            • Suspicious use of WriteProcessMemory
            PID:1048
            • C:\Windows\SysWOW64\net1.exe
              C:\Windows\system32\net1 start serviceupdater
              3⤵
                PID:5092
          • 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:4880
          • C:\Windows\SysWOW64\netupdsrv.exe
            C:\Windows\SysWOW64\netupdsrv.exe
            1⤵
            • Executes dropped EXE
            PID:2608

          Network

          MITRE ATT&CK Enterprise v6

          Replay Monitor

          Loading Replay Monitor...

          Downloads

          • C:\Users\Admin\AppData\Local\Temp\nso5C7A.tmp\System.dll

            Filesize

            11KB

            MD5

            c17103ae9072a06da581dec998343fc1

            SHA1

            b72148c6bdfaada8b8c3f950e610ee7cf1da1f8d

            SHA256

            dc58d8ad81cacb0c1ed72e33bff8f23ea40b5252b5bb55d393a0903e6819ae2f

            SHA512

            d32a71aaef18e993f28096d536e41c4d016850721b31171513ce28bbd805a54fd290b7c3e9d935f72e676a1acfb4f0dcc89d95040a0dd29f2b6975855c18986f

          • C:\Users\Admin\AppData\Local\Temp\nso5C7A.tmp\nsExec.dll

            Filesize

            6KB

            MD5

            acc2b699edfea5bf5aae45aba3a41e96

            SHA1

            d2accf4d494e43ceb2cff69abe4dd17147d29cc2

            SHA256

            168a974eaa3f588d759db3f47c1a9fdc3494ba1fa1a73a84e5e3b2a4d58abd7e

            SHA512

            e29ea10ada98c71a18273b04f44f385b120d4e8473e441ce5748cfa44a23648814f2656f429b85440157988c88de776c6ac008dc38bf09cbb746c230a46c69fe

          • C:\Users\Admin\AppData\Local\Temp\nso5C7A.tmp\nsExec.dll

            Filesize

            6KB

            MD5

            acc2b699edfea5bf5aae45aba3a41e96

            SHA1

            d2accf4d494e43ceb2cff69abe4dd17147d29cc2

            SHA256

            168a974eaa3f588d759db3f47c1a9fdc3494ba1fa1a73a84e5e3b2a4d58abd7e

            SHA512

            e29ea10ada98c71a18273b04f44f385b120d4e8473e441ce5748cfa44a23648814f2656f429b85440157988c88de776c6ac008dc38bf09cbb746c230a46c69fe

          • C:\Users\Admin\AppData\Local\Temp\nso5C7A.tmp\nsExec.dll

            Filesize

            6KB

            MD5

            acc2b699edfea5bf5aae45aba3a41e96

            SHA1

            d2accf4d494e43ceb2cff69abe4dd17147d29cc2

            SHA256

            168a974eaa3f588d759db3f47c1a9fdc3494ba1fa1a73a84e5e3b2a4d58abd7e

            SHA512

            e29ea10ada98c71a18273b04f44f385b120d4e8473e441ce5748cfa44a23648814f2656f429b85440157988c88de776c6ac008dc38bf09cbb746c230a46c69fe

          • C:\Users\Admin\AppData\Local\Temp\nso5C7A.tmp\nsExec.dll

            Filesize

            6KB

            MD5

            acc2b699edfea5bf5aae45aba3a41e96

            SHA1

            d2accf4d494e43ceb2cff69abe4dd17147d29cc2

            SHA256

            168a974eaa3f588d759db3f47c1a9fdc3494ba1fa1a73a84e5e3b2a4d58abd7e

            SHA512

            e29ea10ada98c71a18273b04f44f385b120d4e8473e441ce5748cfa44a23648814f2656f429b85440157988c88de776c6ac008dc38bf09cbb746c230a46c69fe

          • C:\Users\Admin\AppData\Local\Temp\nso5C7A.tmp\nsExec.dll

            Filesize

            6KB

            MD5

            acc2b699edfea5bf5aae45aba3a41e96

            SHA1

            d2accf4d494e43ceb2cff69abe4dd17147d29cc2

            SHA256

            168a974eaa3f588d759db3f47c1a9fdc3494ba1fa1a73a84e5e3b2a4d58abd7e

            SHA512

            e29ea10ada98c71a18273b04f44f385b120d4e8473e441ce5748cfa44a23648814f2656f429b85440157988c88de776c6ac008dc38bf09cbb746c230a46c69fe

          • C:\Users\Admin\AppData\Local\Temp\nso5C7A.tmp\nsExec.dll

            Filesize

            6KB

            MD5

            acc2b699edfea5bf5aae45aba3a41e96

            SHA1

            d2accf4d494e43ceb2cff69abe4dd17147d29cc2

            SHA256

            168a974eaa3f588d759db3f47c1a9fdc3494ba1fa1a73a84e5e3b2a4d58abd7e

            SHA512

            e29ea10ada98c71a18273b04f44f385b120d4e8473e441ce5748cfa44a23648814f2656f429b85440157988c88de776c6ac008dc38bf09cbb746c230a46c69fe

          • C:\Users\Admin\AppData\Local\Temp\nso5C7A.tmp\nsExec.dll

            Filesize

            6KB

            MD5

            acc2b699edfea5bf5aae45aba3a41e96

            SHA1

            d2accf4d494e43ceb2cff69abe4dd17147d29cc2

            SHA256

            168a974eaa3f588d759db3f47c1a9fdc3494ba1fa1a73a84e5e3b2a4d58abd7e

            SHA512

            e29ea10ada98c71a18273b04f44f385b120d4e8473e441ce5748cfa44a23648814f2656f429b85440157988c88de776c6ac008dc38bf09cbb746c230a46c69fe

          • C:\Users\Admin\AppData\Local\Temp\nso5C7A.tmp\nsExec.dll

            Filesize

            6KB

            MD5

            acc2b699edfea5bf5aae45aba3a41e96

            SHA1

            d2accf4d494e43ceb2cff69abe4dd17147d29cc2

            SHA256

            168a974eaa3f588d759db3f47c1a9fdc3494ba1fa1a73a84e5e3b2a4d58abd7e

            SHA512

            e29ea10ada98c71a18273b04f44f385b120d4e8473e441ce5748cfa44a23648814f2656f429b85440157988c88de776c6ac008dc38bf09cbb746c230a46c69fe

          • C:\Windows\SysWOW64\hfnapi.dll

            Filesize

            106KB

            MD5

            56ce4df9233a8f8e1e1426a87e9b62e1

            SHA1

            ccff001a18d6119e62ea7c571cc657f3de696295

            SHA256

            16e9cd29eeed6b81f7539e44a745da697a270d306da3711772f43ede1fa07cbc

            SHA512

            2f3aa80064e7732e6a006fa9e67e27a730efe65c9a7ee613ff7fd86fb3d08e4f5fc246fd4c3e5b6979b62d4d3cf060bb026ef4ce0c3d69c62e1196683c5f035d

          • C:\Windows\SysWOW64\hfnapi.dll

            Filesize

            106KB

            MD5

            56ce4df9233a8f8e1e1426a87e9b62e1

            SHA1

            ccff001a18d6119e62ea7c571cc657f3de696295

            SHA256

            16e9cd29eeed6b81f7539e44a745da697a270d306da3711772f43ede1fa07cbc

            SHA512

            2f3aa80064e7732e6a006fa9e67e27a730efe65c9a7ee613ff7fd86fb3d08e4f5fc246fd4c3e5b6979b62d4d3cf060bb026ef4ce0c3d69c62e1196683c5f035d

          • C:\Windows\SysWOW64\hfnapi.dll

            Filesize

            106KB

            MD5

            56ce4df9233a8f8e1e1426a87e9b62e1

            SHA1

            ccff001a18d6119e62ea7c571cc657f3de696295

            SHA256

            16e9cd29eeed6b81f7539e44a745da697a270d306da3711772f43ede1fa07cbc

            SHA512

            2f3aa80064e7732e6a006fa9e67e27a730efe65c9a7ee613ff7fd86fb3d08e4f5fc246fd4c3e5b6979b62d4d3cf060bb026ef4ce0c3d69c62e1196683c5f035d

          • C:\Windows\SysWOW64\hfnapi.dll

            Filesize

            106KB

            MD5

            56ce4df9233a8f8e1e1426a87e9b62e1

            SHA1

            ccff001a18d6119e62ea7c571cc657f3de696295

            SHA256

            16e9cd29eeed6b81f7539e44a745da697a270d306da3711772f43ede1fa07cbc

            SHA512

            2f3aa80064e7732e6a006fa9e67e27a730efe65c9a7ee613ff7fd86fb3d08e4f5fc246fd4c3e5b6979b62d4d3cf060bb026ef4ce0c3d69c62e1196683c5f035d

          • C:\Windows\SysWOW64\hfpapi.dll

            Filesize

            241KB

            MD5

            a6fc513293e22afbf9b0d59ec253ceee

            SHA1

            6d927a6fe6ea13e9dee03ef987cf2e712334e16c

            SHA256

            79b485266b5cec4b8f88c7b945992fc98b6e60c1d428a2ad4406ea1c1fd0abe9

            SHA512

            5bc9907d95dfa8f552901464e31d79b734acafac37b1931159e78577939100966f7f06ae7de063944fee8b9c6b0718c235bc0961ad7af538a52c8d8724dbbe92

          • C:\Windows\SysWOW64\hfpapi.dll

            Filesize

            241KB

            MD5

            a6fc513293e22afbf9b0d59ec253ceee

            SHA1

            6d927a6fe6ea13e9dee03ef987cf2e712334e16c

            SHA256

            79b485266b5cec4b8f88c7b945992fc98b6e60c1d428a2ad4406ea1c1fd0abe9

            SHA512

            5bc9907d95dfa8f552901464e31d79b734acafac37b1931159e78577939100966f7f06ae7de063944fee8b9c6b0718c235bc0961ad7af538a52c8d8724dbbe92

          • C:\Windows\SysWOW64\hfpapi.dll

            Filesize

            241KB

            MD5

            a6fc513293e22afbf9b0d59ec253ceee

            SHA1

            6d927a6fe6ea13e9dee03ef987cf2e712334e16c

            SHA256

            79b485266b5cec4b8f88c7b945992fc98b6e60c1d428a2ad4406ea1c1fd0abe9

            SHA512

            5bc9907d95dfa8f552901464e31d79b734acafac37b1931159e78577939100966f7f06ae7de063944fee8b9c6b0718c235bc0961ad7af538a52c8d8724dbbe92

          • C:\Windows\SysWOW64\installd.exe

            Filesize

            108KB

            MD5

            633578b69998e901a5aac0499d37872a

            SHA1

            91df4ca7a8d95621ea77efb8a3a1a0bfe5514849

            SHA256

            e8c2c0a9f8dee42edbafb06c29f028e9f8e14fe7fd8d9285efbaef4fdc8c1760

            SHA512

            dbcd45a8f19ca05a5809639d64e78cdc2062e5faa2554ad06dc6f21a504f88fe63cd7323762e123c85aa3e3d35dbb673e75d9b118a49ec193d1fc884f6123c1e

          • C:\Windows\SysWOW64\installd.exe

            Filesize

            108KB

            MD5

            633578b69998e901a5aac0499d37872a

            SHA1

            91df4ca7a8d95621ea77efb8a3a1a0bfe5514849

            SHA256

            e8c2c0a9f8dee42edbafb06c29f028e9f8e14fe7fd8d9285efbaef4fdc8c1760

            SHA512

            dbcd45a8f19ca05a5809639d64e78cdc2062e5faa2554ad06dc6f21a504f88fe63cd7323762e123c85aa3e3d35dbb673e75d9b118a49ec193d1fc884f6123c1e

          • C:\Windows\SysWOW64\nethtsrv.exe

            Filesize

            176KB

            MD5

            4e0cea96bab661d5cb3c09da395a9e2b

            SHA1

            c6463bfa641e04c0bf3b84bdadc819d83a6a2553

            SHA256

            7421f6faa845323ea9abe0590c07e3b2e001a47ee788b6fff02334a3e9af449e

            SHA512

            d09dff285f3e59099a8b6baa74952e60f3a7639ff8a2ae073d327974730f6ba175394d046461fac3a21e8efc65a15bdfd9f156aa60d6ed078184187ee2a04364

          • C:\Windows\SysWOW64\nethtsrv.exe

            Filesize

            176KB

            MD5

            4e0cea96bab661d5cb3c09da395a9e2b

            SHA1

            c6463bfa641e04c0bf3b84bdadc819d83a6a2553

            SHA256

            7421f6faa845323ea9abe0590c07e3b2e001a47ee788b6fff02334a3e9af449e

            SHA512

            d09dff285f3e59099a8b6baa74952e60f3a7639ff8a2ae073d327974730f6ba175394d046461fac3a21e8efc65a15bdfd9f156aa60d6ed078184187ee2a04364

          • C:\Windows\SysWOW64\nethtsrv.exe

            Filesize

            176KB

            MD5

            4e0cea96bab661d5cb3c09da395a9e2b

            SHA1

            c6463bfa641e04c0bf3b84bdadc819d83a6a2553

            SHA256

            7421f6faa845323ea9abe0590c07e3b2e001a47ee788b6fff02334a3e9af449e

            SHA512

            d09dff285f3e59099a8b6baa74952e60f3a7639ff8a2ae073d327974730f6ba175394d046461fac3a21e8efc65a15bdfd9f156aa60d6ed078184187ee2a04364

          • C:\Windows\SysWOW64\netupdsrv.exe

            Filesize

            158KB

            MD5

            34896b3f2708d024ea7547bce9584aa8

            SHA1

            728cdc7aeab20e0357e7b29b648033abb2874f4d

            SHA256

            cc34144baa1fa4035f3c9a2ec7901cb55bd8ca4d6bc3716edf17ef715ec633b3

            SHA512

            97593a9c5ecaea16a7602c6c875dea0002a6550d678244629398c1b44aae653664a69bfc8581c3399505721cf2995f0be1cd5507b2091fa8a30139324187ad90

          • C:\Windows\SysWOW64\netupdsrv.exe

            Filesize

            158KB

            MD5

            34896b3f2708d024ea7547bce9584aa8

            SHA1

            728cdc7aeab20e0357e7b29b648033abb2874f4d

            SHA256

            cc34144baa1fa4035f3c9a2ec7901cb55bd8ca4d6bc3716edf17ef715ec633b3

            SHA512

            97593a9c5ecaea16a7602c6c875dea0002a6550d678244629398c1b44aae653664a69bfc8581c3399505721cf2995f0be1cd5507b2091fa8a30139324187ad90

          • C:\Windows\SysWOW64\netupdsrv.exe

            Filesize

            158KB

            MD5

            34896b3f2708d024ea7547bce9584aa8

            SHA1

            728cdc7aeab20e0357e7b29b648033abb2874f4d

            SHA256

            cc34144baa1fa4035f3c9a2ec7901cb55bd8ca4d6bc3716edf17ef715ec633b3

            SHA512

            97593a9c5ecaea16a7602c6c875dea0002a6550d678244629398c1b44aae653664a69bfc8581c3399505721cf2995f0be1cd5507b2091fa8a30139324187ad90

          • memory/220-148-0x0000000000000000-mapping.dmp

          • memory/1048-166-0x0000000000000000-mapping.dmp

          • memory/2040-135-0x0000000000000000-mapping.dmp

          • memory/3296-160-0x0000000000000000-mapping.dmp

          • memory/3304-159-0x0000000000000000-mapping.dmp

          • memory/3512-142-0x0000000000000000-mapping.dmp

          • memory/4260-137-0x0000000000000000-mapping.dmp

          • memory/4528-147-0x0000000000350000-0x00000000007BE000-memory.dmp

            Filesize

            4.4MB

          • memory/4528-136-0x0000000000350000-0x00000000007BE000-memory.dmp

            Filesize

            4.4MB

          • memory/4528-169-0x0000000000350000-0x00000000007BE000-memory.dmp

            Filesize

            4.4MB

          • memory/4680-154-0x0000000000000000-mapping.dmp

          • memory/4780-140-0x0000000000000000-mapping.dmp

          • memory/4936-141-0x0000000000000000-mapping.dmp

          • memory/5092-167-0x0000000000000000-mapping.dmp