Analysis

  • max time kernel
    171s
  • max time network
    181s
  • 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 10:11

General

  • Target

    d74f5224c84eade7bc01407e346de2490b06b6c1c7904c0dff69add6d865f972.exe

  • Size

    601KB

  • MD5

    2da98a5f79592b892f6ff615f687b4f5

  • SHA1

    6d672cad45bf4d55098b7c24468fb976534d0a19

  • SHA256

    d74f5224c84eade7bc01407e346de2490b06b6c1c7904c0dff69add6d865f972

  • SHA512

    13a891109dfe1b0665a730addc7f1fd8186289a2692c9d51bf0b6452aae9a2e5bae425e91470848d16c74316139807fbe93f026bd29102613a1d149508d48347

  • SSDEEP

    12288:LIny5DYTtTuGJ2nFMMjYPcYFMDuMDLhPD8L1q3Jvt:zUTtToMcYkYFMKsLhP1l

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\d74f5224c84eade7bc01407e346de2490b06b6c1c7904c0dff69add6d865f972.exe
    "C:\Users\Admin\AppData\Local\Temp\d74f5224c84eade7bc01407e346de2490b06b6c1c7904c0dff69add6d865f972.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:3432
    • C:\Windows\SysWOW64\net.exe
      net stop nethttpservice
      2⤵
      • Suspicious use of WriteProcessMemory
      PID:4284
      • C:\Windows\SysWOW64\net1.exe
        C:\Windows\system32\net1 stop nethttpservice
        3⤵
          PID:1400
      • C:\Windows\SysWOW64\net.exe
        net stop serviceupdater
        2⤵
        • Suspicious use of WriteProcessMemory
        PID:4336
        • C:\Windows\SysWOW64\net1.exe
          C:\Windows\system32\net1 stop serviceupdater
          3⤵
            PID:2072
        • C:\Windows\SysWOW64\installd.exe
          "C:\Windows\system32\installd.exe" nethfdrv
          2⤵
          • Executes dropped EXE
          • Loads dropped DLL
          PID:4964
        • C:\Windows\SysWOW64\nethtsrv.exe
          "C:\Windows\system32\nethtsrv.exe" -nfdi
          2⤵
          • Executes dropped EXE
          • Loads dropped DLL
          PID:2872
        • C:\Windows\SysWOW64\netupdsrv.exe
          "C:\Windows\system32\netupdsrv.exe" -nfdi
          2⤵
          • Executes dropped EXE
          PID:2740
        • C:\Windows\SysWOW64\net.exe
          net start nethttpservice
          2⤵
          • Suspicious use of WriteProcessMemory
          PID:3100
          • C:\Windows\SysWOW64\net1.exe
            C:\Windows\system32\net1 start nethttpservice
            3⤵
              PID:4836
          • C:\Windows\SysWOW64\net.exe
            net start serviceupdater
            2⤵
            • Suspicious use of WriteProcessMemory
            PID:4544
            • C:\Windows\SysWOW64\net1.exe
              C:\Windows\system32\net1 start serviceupdater
              3⤵
                PID:4624
          • 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:3448
          • C:\Windows\SysWOW64\netupdsrv.exe
            C:\Windows\SysWOW64\netupdsrv.exe
            1⤵
            • Executes dropped EXE
            PID:3680

          Network

          MITRE ATT&CK Enterprise v6

          Replay Monitor

          Loading Replay Monitor...

          Downloads

          • C:\Users\Admin\AppData\Local\Temp\nsz2BC5.tmp\System.dll

            Filesize

            11KB

            MD5

            c17103ae9072a06da581dec998343fc1

            SHA1

            b72148c6bdfaada8b8c3f950e610ee7cf1da1f8d

            SHA256

            dc58d8ad81cacb0c1ed72e33bff8f23ea40b5252b5bb55d393a0903e6819ae2f

            SHA512

            d32a71aaef18e993f28096d536e41c4d016850721b31171513ce28bbd805a54fd290b7c3e9d935f72e676a1acfb4f0dcc89d95040a0dd29f2b6975855c18986f

          • C:\Users\Admin\AppData\Local\Temp\nsz2BC5.tmp\nsExec.dll

            Filesize

            6KB

            MD5

            acc2b699edfea5bf5aae45aba3a41e96

            SHA1

            d2accf4d494e43ceb2cff69abe4dd17147d29cc2

            SHA256

            168a974eaa3f588d759db3f47c1a9fdc3494ba1fa1a73a84e5e3b2a4d58abd7e

            SHA512

            e29ea10ada98c71a18273b04f44f385b120d4e8473e441ce5748cfa44a23648814f2656f429b85440157988c88de776c6ac008dc38bf09cbb746c230a46c69fe

          • C:\Users\Admin\AppData\Local\Temp\nsz2BC5.tmp\nsExec.dll

            Filesize

            6KB

            MD5

            acc2b699edfea5bf5aae45aba3a41e96

            SHA1

            d2accf4d494e43ceb2cff69abe4dd17147d29cc2

            SHA256

            168a974eaa3f588d759db3f47c1a9fdc3494ba1fa1a73a84e5e3b2a4d58abd7e

            SHA512

            e29ea10ada98c71a18273b04f44f385b120d4e8473e441ce5748cfa44a23648814f2656f429b85440157988c88de776c6ac008dc38bf09cbb746c230a46c69fe

          • C:\Users\Admin\AppData\Local\Temp\nsz2BC5.tmp\nsExec.dll

            Filesize

            6KB

            MD5

            acc2b699edfea5bf5aae45aba3a41e96

            SHA1

            d2accf4d494e43ceb2cff69abe4dd17147d29cc2

            SHA256

            168a974eaa3f588d759db3f47c1a9fdc3494ba1fa1a73a84e5e3b2a4d58abd7e

            SHA512

            e29ea10ada98c71a18273b04f44f385b120d4e8473e441ce5748cfa44a23648814f2656f429b85440157988c88de776c6ac008dc38bf09cbb746c230a46c69fe

          • C:\Users\Admin\AppData\Local\Temp\nsz2BC5.tmp\nsExec.dll

            Filesize

            6KB

            MD5

            acc2b699edfea5bf5aae45aba3a41e96

            SHA1

            d2accf4d494e43ceb2cff69abe4dd17147d29cc2

            SHA256

            168a974eaa3f588d759db3f47c1a9fdc3494ba1fa1a73a84e5e3b2a4d58abd7e

            SHA512

            e29ea10ada98c71a18273b04f44f385b120d4e8473e441ce5748cfa44a23648814f2656f429b85440157988c88de776c6ac008dc38bf09cbb746c230a46c69fe

          • C:\Users\Admin\AppData\Local\Temp\nsz2BC5.tmp\nsExec.dll

            Filesize

            6KB

            MD5

            acc2b699edfea5bf5aae45aba3a41e96

            SHA1

            d2accf4d494e43ceb2cff69abe4dd17147d29cc2

            SHA256

            168a974eaa3f588d759db3f47c1a9fdc3494ba1fa1a73a84e5e3b2a4d58abd7e

            SHA512

            e29ea10ada98c71a18273b04f44f385b120d4e8473e441ce5748cfa44a23648814f2656f429b85440157988c88de776c6ac008dc38bf09cbb746c230a46c69fe

          • C:\Users\Admin\AppData\Local\Temp\nsz2BC5.tmp\nsExec.dll

            Filesize

            6KB

            MD5

            acc2b699edfea5bf5aae45aba3a41e96

            SHA1

            d2accf4d494e43ceb2cff69abe4dd17147d29cc2

            SHA256

            168a974eaa3f588d759db3f47c1a9fdc3494ba1fa1a73a84e5e3b2a4d58abd7e

            SHA512

            e29ea10ada98c71a18273b04f44f385b120d4e8473e441ce5748cfa44a23648814f2656f429b85440157988c88de776c6ac008dc38bf09cbb746c230a46c69fe

          • C:\Users\Admin\AppData\Local\Temp\nsz2BC5.tmp\nsExec.dll

            Filesize

            6KB

            MD5

            acc2b699edfea5bf5aae45aba3a41e96

            SHA1

            d2accf4d494e43ceb2cff69abe4dd17147d29cc2

            SHA256

            168a974eaa3f588d759db3f47c1a9fdc3494ba1fa1a73a84e5e3b2a4d58abd7e

            SHA512

            e29ea10ada98c71a18273b04f44f385b120d4e8473e441ce5748cfa44a23648814f2656f429b85440157988c88de776c6ac008dc38bf09cbb746c230a46c69fe

          • C:\Users\Admin\AppData\Local\Temp\nsz2BC5.tmp\nsExec.dll

            Filesize

            6KB

            MD5

            acc2b699edfea5bf5aae45aba3a41e96

            SHA1

            d2accf4d494e43ceb2cff69abe4dd17147d29cc2

            SHA256

            168a974eaa3f588d759db3f47c1a9fdc3494ba1fa1a73a84e5e3b2a4d58abd7e

            SHA512

            e29ea10ada98c71a18273b04f44f385b120d4e8473e441ce5748cfa44a23648814f2656f429b85440157988c88de776c6ac008dc38bf09cbb746c230a46c69fe

          • C:\Windows\SysWOW64\hfnapi.dll

            Filesize

            106KB

            MD5

            cad70d192934f676abb4d8b621173464

            SHA1

            a74ce033e1f0ec955b358bb2fbd2fa20050b3a75

            SHA256

            d7b9669eef31bf2588dd4c19dcb82198e7196a0512a75b58e889e7fe3d4c6de5

            SHA512

            07a66f76fa28cd2a9e2af1bd0dcd8d81b8709dc4ded459beabab79f06407e6e9b568228a3b6488b7dfb276b62c6c781035a55ff90e9b0b121b5b7dccc8993fa3

          • C:\Windows\SysWOW64\hfnapi.dll

            Filesize

            106KB

            MD5

            cad70d192934f676abb4d8b621173464

            SHA1

            a74ce033e1f0ec955b358bb2fbd2fa20050b3a75

            SHA256

            d7b9669eef31bf2588dd4c19dcb82198e7196a0512a75b58e889e7fe3d4c6de5

            SHA512

            07a66f76fa28cd2a9e2af1bd0dcd8d81b8709dc4ded459beabab79f06407e6e9b568228a3b6488b7dfb276b62c6c781035a55ff90e9b0b121b5b7dccc8993fa3

          • C:\Windows\SysWOW64\hfnapi.dll

            Filesize

            106KB

            MD5

            cad70d192934f676abb4d8b621173464

            SHA1

            a74ce033e1f0ec955b358bb2fbd2fa20050b3a75

            SHA256

            d7b9669eef31bf2588dd4c19dcb82198e7196a0512a75b58e889e7fe3d4c6de5

            SHA512

            07a66f76fa28cd2a9e2af1bd0dcd8d81b8709dc4ded459beabab79f06407e6e9b568228a3b6488b7dfb276b62c6c781035a55ff90e9b0b121b5b7dccc8993fa3

          • C:\Windows\SysWOW64\hfnapi.dll

            Filesize

            106KB

            MD5

            cad70d192934f676abb4d8b621173464

            SHA1

            a74ce033e1f0ec955b358bb2fbd2fa20050b3a75

            SHA256

            d7b9669eef31bf2588dd4c19dcb82198e7196a0512a75b58e889e7fe3d4c6de5

            SHA512

            07a66f76fa28cd2a9e2af1bd0dcd8d81b8709dc4ded459beabab79f06407e6e9b568228a3b6488b7dfb276b62c6c781035a55ff90e9b0b121b5b7dccc8993fa3

          • C:\Windows\SysWOW64\hfpapi.dll

            Filesize

            241KB

            MD5

            11a6766b82862e898db07a199d4f12a1

            SHA1

            61c526fb6db8e471dd75ac16e9f2257d290628cc

            SHA256

            c6a68db06d882ce5ea832188adc4a2c546d568d8ea4aff39e73e8efdb4130a82

            SHA512

            782371bbe7b0b3164827f73d2a0bbc9b30dd9b070da938988bfa45b7b3f1f5465593aa1bf6d034370cd453a82c09d90f9548abea53588da93ac109d05c3b3ec7

          • C:\Windows\SysWOW64\hfpapi.dll

            Filesize

            241KB

            MD5

            11a6766b82862e898db07a199d4f12a1

            SHA1

            61c526fb6db8e471dd75ac16e9f2257d290628cc

            SHA256

            c6a68db06d882ce5ea832188adc4a2c546d568d8ea4aff39e73e8efdb4130a82

            SHA512

            782371bbe7b0b3164827f73d2a0bbc9b30dd9b070da938988bfa45b7b3f1f5465593aa1bf6d034370cd453a82c09d90f9548abea53588da93ac109d05c3b3ec7

          • C:\Windows\SysWOW64\hfpapi.dll

            Filesize

            241KB

            MD5

            11a6766b82862e898db07a199d4f12a1

            SHA1

            61c526fb6db8e471dd75ac16e9f2257d290628cc

            SHA256

            c6a68db06d882ce5ea832188adc4a2c546d568d8ea4aff39e73e8efdb4130a82

            SHA512

            782371bbe7b0b3164827f73d2a0bbc9b30dd9b070da938988bfa45b7b3f1f5465593aa1bf6d034370cd453a82c09d90f9548abea53588da93ac109d05c3b3ec7

          • C:\Windows\SysWOW64\installd.exe

            Filesize

            108KB

            MD5

            c9df9f2a53fc098a8d236e973de2f869

            SHA1

            d79d13e8b7d8014e588d010a1a42a1427877faae

            SHA256

            43605fccd3776132ab0a296d7f58bc430c5c1fb220d6a5b6ccd07c836235208f

            SHA512

            7501087acb7107a380814d1645070a004be17dd94221792d58582c9c69d7acd4d348505ddb0da265d97866b44128b9f799dc06dde0e5b59b3874231ba8a10dba

          • C:\Windows\SysWOW64\installd.exe

            Filesize

            108KB

            MD5

            c9df9f2a53fc098a8d236e973de2f869

            SHA1

            d79d13e8b7d8014e588d010a1a42a1427877faae

            SHA256

            43605fccd3776132ab0a296d7f58bc430c5c1fb220d6a5b6ccd07c836235208f

            SHA512

            7501087acb7107a380814d1645070a004be17dd94221792d58582c9c69d7acd4d348505ddb0da265d97866b44128b9f799dc06dde0e5b59b3874231ba8a10dba

          • C:\Windows\SysWOW64\nethtsrv.exe

            Filesize

            176KB

            MD5

            4f78c533e5be4b3234749b1d284f5bc8

            SHA1

            7c5254a9d38af300d8a1482ee0558abc71241fcd

            SHA256

            d0e35b7aff30da730219237cb7c42991ed44cedff8cbcdf43822871929c647e6

            SHA512

            7ba092c30e62488c4ad6b41808a5fe87692d44b798df6e03ac42c7b2201fddccad30d8732612a9b2e581c746cb62e77498f6b4a86f8945fe5e104ed407ec4823

          • C:\Windows\SysWOW64\nethtsrv.exe

            Filesize

            176KB

            MD5

            4f78c533e5be4b3234749b1d284f5bc8

            SHA1

            7c5254a9d38af300d8a1482ee0558abc71241fcd

            SHA256

            d0e35b7aff30da730219237cb7c42991ed44cedff8cbcdf43822871929c647e6

            SHA512

            7ba092c30e62488c4ad6b41808a5fe87692d44b798df6e03ac42c7b2201fddccad30d8732612a9b2e581c746cb62e77498f6b4a86f8945fe5e104ed407ec4823

          • C:\Windows\SysWOW64\nethtsrv.exe

            Filesize

            176KB

            MD5

            4f78c533e5be4b3234749b1d284f5bc8

            SHA1

            7c5254a9d38af300d8a1482ee0558abc71241fcd

            SHA256

            d0e35b7aff30da730219237cb7c42991ed44cedff8cbcdf43822871929c647e6

            SHA512

            7ba092c30e62488c4ad6b41808a5fe87692d44b798df6e03ac42c7b2201fddccad30d8732612a9b2e581c746cb62e77498f6b4a86f8945fe5e104ed407ec4823

          • C:\Windows\SysWOW64\netupdsrv.exe

            Filesize

            158KB

            MD5

            86fa4e8b052dcabe80facb7bb3d246df

            SHA1

            57362de31f6bf678b9d659802fb33493a9a065ec

            SHA256

            18057a99b2ddb7528048cd3804cb7a681f60177a6d422e86c7887f090c6e7bf4

            SHA512

            0bf383bdfdd8a48afd82905e5afa906f087d8a1981d34b6500716766e441ed4bae863c7da15b6b01010af8b385a01422288b9a4488df2dedce6168c742095c91

          • C:\Windows\SysWOW64\netupdsrv.exe

            Filesize

            158KB

            MD5

            86fa4e8b052dcabe80facb7bb3d246df

            SHA1

            57362de31f6bf678b9d659802fb33493a9a065ec

            SHA256

            18057a99b2ddb7528048cd3804cb7a681f60177a6d422e86c7887f090c6e7bf4

            SHA512

            0bf383bdfdd8a48afd82905e5afa906f087d8a1981d34b6500716766e441ed4bae863c7da15b6b01010af8b385a01422288b9a4488df2dedce6168c742095c91

          • C:\Windows\SysWOW64\netupdsrv.exe

            Filesize

            158KB

            MD5

            86fa4e8b052dcabe80facb7bb3d246df

            SHA1

            57362de31f6bf678b9d659802fb33493a9a065ec

            SHA256

            18057a99b2ddb7528048cd3804cb7a681f60177a6d422e86c7887f090c6e7bf4

            SHA512

            0bf383bdfdd8a48afd82905e5afa906f087d8a1981d34b6500716766e441ed4bae863c7da15b6b01010af8b385a01422288b9a4488df2dedce6168c742095c91

          • memory/1400-137-0x0000000000000000-mapping.dmp

          • memory/2072-141-0x0000000000000000-mapping.dmp

          • memory/2740-153-0x0000000000000000-mapping.dmp

          • memory/2872-147-0x0000000000000000-mapping.dmp

          • memory/3100-158-0x0000000000000000-mapping.dmp

          • memory/3432-136-0x0000000000360000-0x00000000007BE000-memory.dmp

            Filesize

            4.4MB

          • memory/3432-168-0x0000000000360000-0x00000000007BE000-memory.dmp

            Filesize

            4.4MB

          • memory/4284-135-0x0000000000000000-mapping.dmp

          • memory/4336-140-0x0000000000000000-mapping.dmp

          • memory/4544-165-0x0000000000000000-mapping.dmp

          • memory/4624-166-0x0000000000000000-mapping.dmp

          • memory/4836-159-0x0000000000000000-mapping.dmp

          • memory/4964-142-0x0000000000000000-mapping.dmp