Analysis

  • max time kernel
    91s
  • max time network
    154s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20220812-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20220812-enlocale:en-usos:windows10-2004-x64system
  • submitted
    22/11/2022, 00:22

General

  • Target

    713c75e358fa3bdef4c0fdaa4b437a697dfb6ae9d3e63ebd16b9cabcd1754832.exe

  • Size

    695KB

  • MD5

    8b4d8eeed42b28392b8d65e7b5694f9d

  • SHA1

    3ca67835aa2ddc63fea13066640e0cbf3f08095e

  • SHA256

    713c75e358fa3bdef4c0fdaa4b437a697dfb6ae9d3e63ebd16b9cabcd1754832

  • SHA512

    d1d24d0da53ff871b4f86f3cb933149fe82eca92365a483bc98eba4ee419a639e19b1b10bece7afc77971d92783a028508f9db5dea2fdd4b72821f9ec5c08cf6

  • SSDEEP

    12288:jAbu3fQ+thk6Ez1bftOY9f7JK7ijrUXp0PQXDLNycdFxPm+ZniMx8zZGDYd:jAbuPPEzxf79f787gPmLNtdXe4H8d7

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\713c75e358fa3bdef4c0fdaa4b437a697dfb6ae9d3e63ebd16b9cabcd1754832.exe
    "C:\Users\Admin\AppData\Local\Temp\713c75e358fa3bdef4c0fdaa4b437a697dfb6ae9d3e63ebd16b9cabcd1754832.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:904
    • C:\Windows\SysWOW64\net.exe
      net stop nethttpservice
      2⤵
      • Suspicious use of WriteProcessMemory
      PID:3184
      • C:\Windows\SysWOW64\net1.exe
        C:\Windows\system32\net1 stop nethttpservice
        3⤵
          PID:8
      • C:\Windows\SysWOW64\net.exe
        net stop serviceupdater
        2⤵
        • Suspicious use of WriteProcessMemory
        PID:4640
        • C:\Windows\SysWOW64\net1.exe
          C:\Windows\system32\net1 stop serviceupdater
          3⤵
            PID:4964
        • C:\Windows\SysWOW64\installd.exe
          "C:\Windows\system32\installd.exe" nethfdrv
          2⤵
          • Executes dropped EXE
          • Loads dropped DLL
          PID:4944
        • C:\Windows\SysWOW64\nethtsrv.exe
          "C:\Windows\system32\nethtsrv.exe" -nfdi
          2⤵
          • Executes dropped EXE
          • Loads dropped DLL
          PID:4648
        • C:\Windows\SysWOW64\netupdsrv.exe
          "C:\Windows\system32\netupdsrv.exe" -nfdi
          2⤵
          • Executes dropped EXE
          PID:2180
        • C:\Windows\SysWOW64\net.exe
          net start nethttpservice
          2⤵
          • Suspicious use of WriteProcessMemory
          PID:260
          • C:\Windows\SysWOW64\net1.exe
            C:\Windows\system32\net1 start nethttpservice
            3⤵
              PID:1276
          • C:\Windows\SysWOW64\net.exe
            net start serviceupdater
            2⤵
            • Suspicious use of WriteProcessMemory
            PID:1332
            • C:\Windows\SysWOW64\net1.exe
              C:\Windows\system32\net1 start serviceupdater
              3⤵
                PID:4168
          • 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:684
          • C:\Windows\SysWOW64\netupdsrv.exe
            C:\Windows\SysWOW64\netupdsrv.exe
            1⤵
            • Executes dropped EXE
            PID:2788

          Network

          MITRE ATT&CK Enterprise v6

          Replay Monitor

          Loading Replay Monitor...

          Downloads

          • C:\Users\Admin\AppData\Local\Temp\nsgFDB0.tmp\System.dll

            Filesize

            11KB

            MD5

            c17103ae9072a06da581dec998343fc1

            SHA1

            b72148c6bdfaada8b8c3f950e610ee7cf1da1f8d

            SHA256

            dc58d8ad81cacb0c1ed72e33bff8f23ea40b5252b5bb55d393a0903e6819ae2f

            SHA512

            d32a71aaef18e993f28096d536e41c4d016850721b31171513ce28bbd805a54fd290b7c3e9d935f72e676a1acfb4f0dcc89d95040a0dd29f2b6975855c18986f

          • C:\Users\Admin\AppData\Local\Temp\nsgFDB0.tmp\nsExec.dll

            Filesize

            6KB

            MD5

            acc2b699edfea5bf5aae45aba3a41e96

            SHA1

            d2accf4d494e43ceb2cff69abe4dd17147d29cc2

            SHA256

            168a974eaa3f588d759db3f47c1a9fdc3494ba1fa1a73a84e5e3b2a4d58abd7e

            SHA512

            e29ea10ada98c71a18273b04f44f385b120d4e8473e441ce5748cfa44a23648814f2656f429b85440157988c88de776c6ac008dc38bf09cbb746c230a46c69fe

          • C:\Users\Admin\AppData\Local\Temp\nsgFDB0.tmp\nsExec.dll

            Filesize

            6KB

            MD5

            acc2b699edfea5bf5aae45aba3a41e96

            SHA1

            d2accf4d494e43ceb2cff69abe4dd17147d29cc2

            SHA256

            168a974eaa3f588d759db3f47c1a9fdc3494ba1fa1a73a84e5e3b2a4d58abd7e

            SHA512

            e29ea10ada98c71a18273b04f44f385b120d4e8473e441ce5748cfa44a23648814f2656f429b85440157988c88de776c6ac008dc38bf09cbb746c230a46c69fe

          • C:\Users\Admin\AppData\Local\Temp\nsgFDB0.tmp\nsExec.dll

            Filesize

            6KB

            MD5

            acc2b699edfea5bf5aae45aba3a41e96

            SHA1

            d2accf4d494e43ceb2cff69abe4dd17147d29cc2

            SHA256

            168a974eaa3f588d759db3f47c1a9fdc3494ba1fa1a73a84e5e3b2a4d58abd7e

            SHA512

            e29ea10ada98c71a18273b04f44f385b120d4e8473e441ce5748cfa44a23648814f2656f429b85440157988c88de776c6ac008dc38bf09cbb746c230a46c69fe

          • C:\Users\Admin\AppData\Local\Temp\nsgFDB0.tmp\nsExec.dll

            Filesize

            6KB

            MD5

            acc2b699edfea5bf5aae45aba3a41e96

            SHA1

            d2accf4d494e43ceb2cff69abe4dd17147d29cc2

            SHA256

            168a974eaa3f588d759db3f47c1a9fdc3494ba1fa1a73a84e5e3b2a4d58abd7e

            SHA512

            e29ea10ada98c71a18273b04f44f385b120d4e8473e441ce5748cfa44a23648814f2656f429b85440157988c88de776c6ac008dc38bf09cbb746c230a46c69fe

          • C:\Users\Admin\AppData\Local\Temp\nsgFDB0.tmp\nsExec.dll

            Filesize

            6KB

            MD5

            acc2b699edfea5bf5aae45aba3a41e96

            SHA1

            d2accf4d494e43ceb2cff69abe4dd17147d29cc2

            SHA256

            168a974eaa3f588d759db3f47c1a9fdc3494ba1fa1a73a84e5e3b2a4d58abd7e

            SHA512

            e29ea10ada98c71a18273b04f44f385b120d4e8473e441ce5748cfa44a23648814f2656f429b85440157988c88de776c6ac008dc38bf09cbb746c230a46c69fe

          • C:\Users\Admin\AppData\Local\Temp\nsgFDB0.tmp\nsExec.dll

            Filesize

            6KB

            MD5

            acc2b699edfea5bf5aae45aba3a41e96

            SHA1

            d2accf4d494e43ceb2cff69abe4dd17147d29cc2

            SHA256

            168a974eaa3f588d759db3f47c1a9fdc3494ba1fa1a73a84e5e3b2a4d58abd7e

            SHA512

            e29ea10ada98c71a18273b04f44f385b120d4e8473e441ce5748cfa44a23648814f2656f429b85440157988c88de776c6ac008dc38bf09cbb746c230a46c69fe

          • C:\Users\Admin\AppData\Local\Temp\nsgFDB0.tmp\nsExec.dll

            Filesize

            6KB

            MD5

            acc2b699edfea5bf5aae45aba3a41e96

            SHA1

            d2accf4d494e43ceb2cff69abe4dd17147d29cc2

            SHA256

            168a974eaa3f588d759db3f47c1a9fdc3494ba1fa1a73a84e5e3b2a4d58abd7e

            SHA512

            e29ea10ada98c71a18273b04f44f385b120d4e8473e441ce5748cfa44a23648814f2656f429b85440157988c88de776c6ac008dc38bf09cbb746c230a46c69fe

          • C:\Users\Admin\AppData\Local\Temp\nsgFDB0.tmp\nsExec.dll

            Filesize

            6KB

            MD5

            acc2b699edfea5bf5aae45aba3a41e96

            SHA1

            d2accf4d494e43ceb2cff69abe4dd17147d29cc2

            SHA256

            168a974eaa3f588d759db3f47c1a9fdc3494ba1fa1a73a84e5e3b2a4d58abd7e

            SHA512

            e29ea10ada98c71a18273b04f44f385b120d4e8473e441ce5748cfa44a23648814f2656f429b85440157988c88de776c6ac008dc38bf09cbb746c230a46c69fe

          • C:\Windows\SysWOW64\hfnapi.dll

            Filesize

            106KB

            MD5

            2db7c521b94297749b7c43de4851d230

            SHA1

            38a4db2c20805bf47cb29f98adb60a1ac1d3ba0a

            SHA256

            1bf7be22670760681e0cd375fe079d1d8332941bc92c03b1fc1f58458535805e

            SHA512

            fa1a544987b7958f8a9430661a1c59bcaa56a2c997c85d643dffe2d7e16f9a38430da87963ebb07f21db4dcc2d5b70012b58ab747cc00df9c345bad590a86f2b

          • C:\Windows\SysWOW64\hfnapi.dll

            Filesize

            106KB

            MD5

            2db7c521b94297749b7c43de4851d230

            SHA1

            38a4db2c20805bf47cb29f98adb60a1ac1d3ba0a

            SHA256

            1bf7be22670760681e0cd375fe079d1d8332941bc92c03b1fc1f58458535805e

            SHA512

            fa1a544987b7958f8a9430661a1c59bcaa56a2c997c85d643dffe2d7e16f9a38430da87963ebb07f21db4dcc2d5b70012b58ab747cc00df9c345bad590a86f2b

          • C:\Windows\SysWOW64\hfnapi.dll

            Filesize

            106KB

            MD5

            2db7c521b94297749b7c43de4851d230

            SHA1

            38a4db2c20805bf47cb29f98adb60a1ac1d3ba0a

            SHA256

            1bf7be22670760681e0cd375fe079d1d8332941bc92c03b1fc1f58458535805e

            SHA512

            fa1a544987b7958f8a9430661a1c59bcaa56a2c997c85d643dffe2d7e16f9a38430da87963ebb07f21db4dcc2d5b70012b58ab747cc00df9c345bad590a86f2b

          • C:\Windows\SysWOW64\hfnapi.dll

            Filesize

            106KB

            MD5

            2db7c521b94297749b7c43de4851d230

            SHA1

            38a4db2c20805bf47cb29f98adb60a1ac1d3ba0a

            SHA256

            1bf7be22670760681e0cd375fe079d1d8332941bc92c03b1fc1f58458535805e

            SHA512

            fa1a544987b7958f8a9430661a1c59bcaa56a2c997c85d643dffe2d7e16f9a38430da87963ebb07f21db4dcc2d5b70012b58ab747cc00df9c345bad590a86f2b

          • C:\Windows\SysWOW64\hfpapi.dll

            Filesize

            241KB

            MD5

            c1e0da11da529385c287a04f05f9c59b

            SHA1

            f56d31b3bebb0f4df09b0d25f91985fcfc4e20e3

            SHA256

            a4307caf7c64833051906318650cd56d8892a979ca8d49031f85acabfcd65c75

            SHA512

            d01cdbff4b2bb369947730495b7b1e36c6a3ccb4b9d0f44ea3e0e3adc7c77dec6c23e8a39a95f0ba28bf71892ff42c52cdd0121e0bf07de864c3b85a0a727343

          • C:\Windows\SysWOW64\hfpapi.dll

            Filesize

            241KB

            MD5

            c1e0da11da529385c287a04f05f9c59b

            SHA1

            f56d31b3bebb0f4df09b0d25f91985fcfc4e20e3

            SHA256

            a4307caf7c64833051906318650cd56d8892a979ca8d49031f85acabfcd65c75

            SHA512

            d01cdbff4b2bb369947730495b7b1e36c6a3ccb4b9d0f44ea3e0e3adc7c77dec6c23e8a39a95f0ba28bf71892ff42c52cdd0121e0bf07de864c3b85a0a727343

          • C:\Windows\SysWOW64\hfpapi.dll

            Filesize

            241KB

            MD5

            c1e0da11da529385c287a04f05f9c59b

            SHA1

            f56d31b3bebb0f4df09b0d25f91985fcfc4e20e3

            SHA256

            a4307caf7c64833051906318650cd56d8892a979ca8d49031f85acabfcd65c75

            SHA512

            d01cdbff4b2bb369947730495b7b1e36c6a3ccb4b9d0f44ea3e0e3adc7c77dec6c23e8a39a95f0ba28bf71892ff42c52cdd0121e0bf07de864c3b85a0a727343

          • C:\Windows\SysWOW64\installd.exe

            Filesize

            108KB

            MD5

            34513f84a6106fd662a26c9b913dcdfd

            SHA1

            05ec86aab25ea497ac098db2454d00b88191c658

            SHA256

            8187c886052bb006dc99275e7ceee337daa13783d972ea66048cf53f9aacff3e

            SHA512

            a8322dfc27ca3f564b05ae7f175126455dd5a42eb0e6e13579f28be83f6b068bf1ae48ed0639314239d50785ec0d1c2770df578742a9c622a20223b2afb9cf74

          • C:\Windows\SysWOW64\installd.exe

            Filesize

            108KB

            MD5

            34513f84a6106fd662a26c9b913dcdfd

            SHA1

            05ec86aab25ea497ac098db2454d00b88191c658

            SHA256

            8187c886052bb006dc99275e7ceee337daa13783d972ea66048cf53f9aacff3e

            SHA512

            a8322dfc27ca3f564b05ae7f175126455dd5a42eb0e6e13579f28be83f6b068bf1ae48ed0639314239d50785ec0d1c2770df578742a9c622a20223b2afb9cf74

          • C:\Windows\SysWOW64\nethtsrv.exe

            Filesize

            176KB

            MD5

            4245f80a6ab267cafc387b9cb9d17b92

            SHA1

            130e2323d7a185c33d8ea324960e79966d94fc90

            SHA256

            1bedf0612b4c50d9c572aebe01ab12f2b3585b92b2b3dcd6fce148aea403b932

            SHA512

            bde0a5f36e7c3cc2e0f9c51dc6fc14286267b02024bbb21b5b970d6cc19387e82db49657a53f4645655c2817fad6d33fc5347eb2a60a46559e518fb79d561d7c

          • C:\Windows\SysWOW64\nethtsrv.exe

            Filesize

            176KB

            MD5

            4245f80a6ab267cafc387b9cb9d17b92

            SHA1

            130e2323d7a185c33d8ea324960e79966d94fc90

            SHA256

            1bedf0612b4c50d9c572aebe01ab12f2b3585b92b2b3dcd6fce148aea403b932

            SHA512

            bde0a5f36e7c3cc2e0f9c51dc6fc14286267b02024bbb21b5b970d6cc19387e82db49657a53f4645655c2817fad6d33fc5347eb2a60a46559e518fb79d561d7c

          • C:\Windows\SysWOW64\nethtsrv.exe

            Filesize

            176KB

            MD5

            4245f80a6ab267cafc387b9cb9d17b92

            SHA1

            130e2323d7a185c33d8ea324960e79966d94fc90

            SHA256

            1bedf0612b4c50d9c572aebe01ab12f2b3585b92b2b3dcd6fce148aea403b932

            SHA512

            bde0a5f36e7c3cc2e0f9c51dc6fc14286267b02024bbb21b5b970d6cc19387e82db49657a53f4645655c2817fad6d33fc5347eb2a60a46559e518fb79d561d7c

          • C:\Windows\SysWOW64\netupdsrv.exe

            Filesize

            158KB

            MD5

            dd0afa9a2c6cc17d5dc3cb31a960cfa6

            SHA1

            c2da41ecdcafcfff2b65253f1a7218f24511efaf

            SHA256

            9d6e9dae7b37334251f45c84ca984db5f379f33c173cfd17b556f5ce5768dd71

            SHA512

            cd612c5f92ec7e0c08fd1a82032b944da127c511dd62b835251d76b0b934c15b506b4e43cc82c36523fc97bd017726f3c872d4e818c01ecee6bd65e362de7970

          • C:\Windows\SysWOW64\netupdsrv.exe

            Filesize

            158KB

            MD5

            dd0afa9a2c6cc17d5dc3cb31a960cfa6

            SHA1

            c2da41ecdcafcfff2b65253f1a7218f24511efaf

            SHA256

            9d6e9dae7b37334251f45c84ca984db5f379f33c173cfd17b556f5ce5768dd71

            SHA512

            cd612c5f92ec7e0c08fd1a82032b944da127c511dd62b835251d76b0b934c15b506b4e43cc82c36523fc97bd017726f3c872d4e818c01ecee6bd65e362de7970

          • C:\Windows\SysWOW64\netupdsrv.exe

            Filesize

            158KB

            MD5

            dd0afa9a2c6cc17d5dc3cb31a960cfa6

            SHA1

            c2da41ecdcafcfff2b65253f1a7218f24511efaf

            SHA256

            9d6e9dae7b37334251f45c84ca984db5f379f33c173cfd17b556f5ce5768dd71

            SHA512

            cd612c5f92ec7e0c08fd1a82032b944da127c511dd62b835251d76b0b934c15b506b4e43cc82c36523fc97bd017726f3c872d4e818c01ecee6bd65e362de7970

          • memory/904-137-0x0000000000340000-0x00000000007BE000-memory.dmp

            Filesize

            4.5MB

          • memory/904-168-0x0000000000340000-0x00000000007BE000-memory.dmp

            Filesize

            4.5MB