Analysis

  • max time kernel
    37s
  • max time network
    41s
  • platform
    windows7_x64
  • resource
    win7-20220812-en
  • resource tags

    arch:x64arch:x86image:win7-20220812-enlocale:en-usos:windows7-x64system
  • submitted
    28/11/2022, 00:30

General

  • Target

    eba738d6075bcb517348e36c4b501299117894592324597360ca14b1d778bf2b.exe

  • Size

    831KB

  • MD5

    8208f614b6cb1efb02727ef208f431e3

  • SHA1

    550823427740aa6e06e59c40d72ab9f31da1cee5

  • SHA256

    eba738d6075bcb517348e36c4b501299117894592324597360ca14b1d778bf2b

  • SHA512

    ecf86db365b4a59692a4e850b7ada8b94ef38b37c08be158db9fcb0cb79b9b1bd9e4f887d22ce2dee9ecf265c90bcf9c640f24c04da9f45237dda2840af25830

  • SSDEEP

    12288:5NpbfGRDCwDeR/0TbnmfWgeRkyCSph8Hub+NT2s14GOSyls1x8Oww/EA0LnxDS:5rfGR2wDeRMT+PyCkKF14NNlPOwO3oD

Score
8/10

Malware Config

Signatures

  • Drops file in Drivers directory 1 IoCs
  • Executes dropped EXE 5 IoCs
  • Loads dropped DLL 13 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.

  • Runs net.exe
  • Suspicious behavior: LoadsDriver 1 IoCs
  • Suspicious use of AdjustPrivilegeToken 1 IoCs
  • Suspicious use of WriteProcessMemory 50 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\eba738d6075bcb517348e36c4b501299117894592324597360ca14b1d778bf2b.exe
    "C:\Users\Admin\AppData\Local\Temp\eba738d6075bcb517348e36c4b501299117894592324597360ca14b1d778bf2b.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:1612
    • C:\Windows\SysWOW64\net.exe
      net stop nethttpservice
      2⤵
      • Suspicious use of WriteProcessMemory
      PID:2020
      • C:\Windows\SysWOW64\net1.exe
        C:\Windows\system32\net1 stop nethttpservice
        3⤵
          PID:908
      • C:\Windows\SysWOW64\net.exe
        net stop serviceupdater
        2⤵
        • Suspicious use of WriteProcessMemory
        PID:1528
        • C:\Windows\SysWOW64\net1.exe
          C:\Windows\system32\net1 stop serviceupdater
          3⤵
            PID:1376
        • C:\Windows\SysWOW64\installd.exe
          "C:\Windows\system32\installd.exe" nethfdrv
          2⤵
          • Executes dropped EXE
          • Loads dropped DLL
          PID:1448
        • C:\Windows\SysWOW64\nethtsrv.exe
          "C:\Windows\system32\nethtsrv.exe" -nfdi
          2⤵
          • Executes dropped EXE
          • Loads dropped DLL
          PID:904
        • C:\Windows\SysWOW64\netupdsrv.exe
          "C:\Windows\system32\netupdsrv.exe" -nfdi
          2⤵
          • Executes dropped EXE
          PID:632
        • C:\Windows\SysWOW64\net.exe
          net start nethttpservice
          2⤵
          • Suspicious use of WriteProcessMemory
          PID:928
          • C:\Windows\SysWOW64\net1.exe
            C:\Windows\system32\net1 start nethttpservice
            3⤵
              PID:1980
          • C:\Windows\SysWOW64\net.exe
            net start serviceupdater
            2⤵
            • Suspicious use of WriteProcessMemory
            PID:1064
            • C:\Windows\SysWOW64\net1.exe
              C:\Windows\system32\net1 start serviceupdater
              3⤵
                PID:820
          • C:\Windows\SysWOW64\nethtsrv.exe
            C:\Windows\SysWOW64\nethtsrv.exe
            1⤵
            • Executes dropped EXE
            • Loads dropped DLL
            • Suspicious use of AdjustPrivilegeToken
            PID:1976
          • C:\Windows\SysWOW64\netupdsrv.exe
            C:\Windows\SysWOW64\netupdsrv.exe
            1⤵
            • Executes dropped EXE
            PID:1608

          Network

          MITRE ATT&CK Enterprise v6

          Replay Monitor

          Loading Replay Monitor...

          Downloads

          • C:\Windows\SysWOW64\hfnapi.dll

            Filesize

            106KB

            MD5

            4ecc2f1221117017f7f2cda19aaf95b4

            SHA1

            1d2e461a980cc68bb90c643dcef89193b455b9bf

            SHA256

            3de1534d0757aa725a504b2041151dd4f6338aa86b74572daf4db0d5e9718616

            SHA512

            d748b7b4f6b4b3c2e68e77031154ef72cfb12ec8bc1bd42e6de230867ce92412d1f5666c11b53221c8231a9e6c7e637be1c366c5dc7cc4addb8cfa00e522c4f6

          • C:\Windows\SysWOW64\hfpapi.dll

            Filesize

            427KB

            MD5

            f404a61fee33e2c1732a9d6cdf7293e8

            SHA1

            c5ac18ffd0fb35ebceb06f3c2e372d97a855fe92

            SHA256

            2c8655e3642866c9e666657994ac9805f012d2414ce76bcbe7ff30f67dc74ea5

            SHA512

            de7425a6bacfb80610c1d2f1e331e66370cb551691f75696d4e4756f66a8504be6687854a72acf046027467c0ff2dfe5fb4cdef36ae210345ce1db1dabddc2d0

          • C:\Windows\SysWOW64\installd.exe

            Filesize

            137KB

            MD5

            2128ccad79e9a0b7410a4febad63b15d

            SHA1

            fb8a2fd8c562a0223912eefb8adc2860edc97b6c

            SHA256

            439b56866eaf6aefd3f11a7db6759b3844ccbc3c6eed8a0a2e3ada6ab8be6551

            SHA512

            02d840ac9df94b2a42f051836bf4b9b8323e547798faf99171e1b8cfb7b3b925adb62c2e37b69bf29c7a3e13932d65fbb5810a71e72da3bb144ea133376433bd

          • C:\Windows\SysWOW64\nethtsrv.exe

            Filesize

            331KB

            MD5

            002daee7f6e69902790a9654dee548e7

            SHA1

            964ef9798e6acc0ce0fab2b947f13eb6f869f048

            SHA256

            1d219a03b7bef01283cbb1242548f4e3662b3e86e6c32094096d79c05ea8a77b

            SHA512

            9b395552235a828e30cbbecef77502757cce6008f73595751ad282336996eed554b64ae677b9cf019544e682c28469b36c62b44a4500c70ba27bfca7defb9d08

          • C:\Windows\SysWOW64\nethtsrv.exe

            Filesize

            331KB

            MD5

            002daee7f6e69902790a9654dee548e7

            SHA1

            964ef9798e6acc0ce0fab2b947f13eb6f869f048

            SHA256

            1d219a03b7bef01283cbb1242548f4e3662b3e86e6c32094096d79c05ea8a77b

            SHA512

            9b395552235a828e30cbbecef77502757cce6008f73595751ad282336996eed554b64ae677b9cf019544e682c28469b36c62b44a4500c70ba27bfca7defb9d08

          • C:\Windows\SysWOW64\netupdsrv.exe

            Filesize

            186KB

            MD5

            eb645a8223c035a3a74900943d2130c7

            SHA1

            e17a367af56f03b527501b0195f0f32e9cb6b726

            SHA256

            2d1a8552fa9d1295d2cefde4324e1b0748b1c07a5650805dde6c1e1db9254634

            SHA512

            9a2a5d9af0d708e5c52611f439c5c7cba7abb6a23613187eb8256d6273263d784f693cefd74cb6c3fb8f859134687f49e0942b1ed2b5ee88dd18399bccc2a061

          • C:\Windows\SysWOW64\netupdsrv.exe

            Filesize

            186KB

            MD5

            eb645a8223c035a3a74900943d2130c7

            SHA1

            e17a367af56f03b527501b0195f0f32e9cb6b726

            SHA256

            2d1a8552fa9d1295d2cefde4324e1b0748b1c07a5650805dde6c1e1db9254634

            SHA512

            9a2a5d9af0d708e5c52611f439c5c7cba7abb6a23613187eb8256d6273263d784f693cefd74cb6c3fb8f859134687f49e0942b1ed2b5ee88dd18399bccc2a061

          • \Users\Admin\AppData\Local\Temp\nsj73FB.tmp\System.dll

            Filesize

            11KB

            MD5

            c17103ae9072a06da581dec998343fc1

            SHA1

            b72148c6bdfaada8b8c3f950e610ee7cf1da1f8d

            SHA256

            dc58d8ad81cacb0c1ed72e33bff8f23ea40b5252b5bb55d393a0903e6819ae2f

            SHA512

            d32a71aaef18e993f28096d536e41c4d016850721b31171513ce28bbd805a54fd290b7c3e9d935f72e676a1acfb4f0dcc89d95040a0dd29f2b6975855c18986f

          • \Users\Admin\AppData\Local\Temp\nsj73FB.tmp\nsExec.dll

            Filesize

            6KB

            MD5

            acc2b699edfea5bf5aae45aba3a41e96

            SHA1

            d2accf4d494e43ceb2cff69abe4dd17147d29cc2

            SHA256

            168a974eaa3f588d759db3f47c1a9fdc3494ba1fa1a73a84e5e3b2a4d58abd7e

            SHA512

            e29ea10ada98c71a18273b04f44f385b120d4e8473e441ce5748cfa44a23648814f2656f429b85440157988c88de776c6ac008dc38bf09cbb746c230a46c69fe

          • \Users\Admin\AppData\Local\Temp\nsj73FB.tmp\nsExec.dll

            Filesize

            6KB

            MD5

            acc2b699edfea5bf5aae45aba3a41e96

            SHA1

            d2accf4d494e43ceb2cff69abe4dd17147d29cc2

            SHA256

            168a974eaa3f588d759db3f47c1a9fdc3494ba1fa1a73a84e5e3b2a4d58abd7e

            SHA512

            e29ea10ada98c71a18273b04f44f385b120d4e8473e441ce5748cfa44a23648814f2656f429b85440157988c88de776c6ac008dc38bf09cbb746c230a46c69fe

          • \Users\Admin\AppData\Local\Temp\nsj73FB.tmp\nsExec.dll

            Filesize

            6KB

            MD5

            acc2b699edfea5bf5aae45aba3a41e96

            SHA1

            d2accf4d494e43ceb2cff69abe4dd17147d29cc2

            SHA256

            168a974eaa3f588d759db3f47c1a9fdc3494ba1fa1a73a84e5e3b2a4d58abd7e

            SHA512

            e29ea10ada98c71a18273b04f44f385b120d4e8473e441ce5748cfa44a23648814f2656f429b85440157988c88de776c6ac008dc38bf09cbb746c230a46c69fe

          • \Users\Admin\AppData\Local\Temp\nsj73FB.tmp\nsExec.dll

            Filesize

            6KB

            MD5

            acc2b699edfea5bf5aae45aba3a41e96

            SHA1

            d2accf4d494e43ceb2cff69abe4dd17147d29cc2

            SHA256

            168a974eaa3f588d759db3f47c1a9fdc3494ba1fa1a73a84e5e3b2a4d58abd7e

            SHA512

            e29ea10ada98c71a18273b04f44f385b120d4e8473e441ce5748cfa44a23648814f2656f429b85440157988c88de776c6ac008dc38bf09cbb746c230a46c69fe

          • \Windows\SysWOW64\hfnapi.dll

            Filesize

            106KB

            MD5

            4ecc2f1221117017f7f2cda19aaf95b4

            SHA1

            1d2e461a980cc68bb90c643dcef89193b455b9bf

            SHA256

            3de1534d0757aa725a504b2041151dd4f6338aa86b74572daf4db0d5e9718616

            SHA512

            d748b7b4f6b4b3c2e68e77031154ef72cfb12ec8bc1bd42e6de230867ce92412d1f5666c11b53221c8231a9e6c7e637be1c366c5dc7cc4addb8cfa00e522c4f6

          • \Windows\SysWOW64\hfnapi.dll

            Filesize

            106KB

            MD5

            4ecc2f1221117017f7f2cda19aaf95b4

            SHA1

            1d2e461a980cc68bb90c643dcef89193b455b9bf

            SHA256

            3de1534d0757aa725a504b2041151dd4f6338aa86b74572daf4db0d5e9718616

            SHA512

            d748b7b4f6b4b3c2e68e77031154ef72cfb12ec8bc1bd42e6de230867ce92412d1f5666c11b53221c8231a9e6c7e637be1c366c5dc7cc4addb8cfa00e522c4f6

          • \Windows\SysWOW64\hfnapi.dll

            Filesize

            106KB

            MD5

            4ecc2f1221117017f7f2cda19aaf95b4

            SHA1

            1d2e461a980cc68bb90c643dcef89193b455b9bf

            SHA256

            3de1534d0757aa725a504b2041151dd4f6338aa86b74572daf4db0d5e9718616

            SHA512

            d748b7b4f6b4b3c2e68e77031154ef72cfb12ec8bc1bd42e6de230867ce92412d1f5666c11b53221c8231a9e6c7e637be1c366c5dc7cc4addb8cfa00e522c4f6

          • \Windows\SysWOW64\hfpapi.dll

            Filesize

            427KB

            MD5

            f404a61fee33e2c1732a9d6cdf7293e8

            SHA1

            c5ac18ffd0fb35ebceb06f3c2e372d97a855fe92

            SHA256

            2c8655e3642866c9e666657994ac9805f012d2414ce76bcbe7ff30f67dc74ea5

            SHA512

            de7425a6bacfb80610c1d2f1e331e66370cb551691f75696d4e4756f66a8504be6687854a72acf046027467c0ff2dfe5fb4cdef36ae210345ce1db1dabddc2d0

          • \Windows\SysWOW64\hfpapi.dll

            Filesize

            427KB

            MD5

            f404a61fee33e2c1732a9d6cdf7293e8

            SHA1

            c5ac18ffd0fb35ebceb06f3c2e372d97a855fe92

            SHA256

            2c8655e3642866c9e666657994ac9805f012d2414ce76bcbe7ff30f67dc74ea5

            SHA512

            de7425a6bacfb80610c1d2f1e331e66370cb551691f75696d4e4756f66a8504be6687854a72acf046027467c0ff2dfe5fb4cdef36ae210345ce1db1dabddc2d0

          • \Windows\SysWOW64\installd.exe

            Filesize

            137KB

            MD5

            2128ccad79e9a0b7410a4febad63b15d

            SHA1

            fb8a2fd8c562a0223912eefb8adc2860edc97b6c

            SHA256

            439b56866eaf6aefd3f11a7db6759b3844ccbc3c6eed8a0a2e3ada6ab8be6551

            SHA512

            02d840ac9df94b2a42f051836bf4b9b8323e547798faf99171e1b8cfb7b3b925adb62c2e37b69bf29c7a3e13932d65fbb5810a71e72da3bb144ea133376433bd

          • \Windows\SysWOW64\nethtsrv.exe

            Filesize

            331KB

            MD5

            002daee7f6e69902790a9654dee548e7

            SHA1

            964ef9798e6acc0ce0fab2b947f13eb6f869f048

            SHA256

            1d219a03b7bef01283cbb1242548f4e3662b3e86e6c32094096d79c05ea8a77b

            SHA512

            9b395552235a828e30cbbecef77502757cce6008f73595751ad282336996eed554b64ae677b9cf019544e682c28469b36c62b44a4500c70ba27bfca7defb9d08

          • \Windows\SysWOW64\netupdsrv.exe

            Filesize

            186KB

            MD5

            eb645a8223c035a3a74900943d2130c7

            SHA1

            e17a367af56f03b527501b0195f0f32e9cb6b726

            SHA256

            2d1a8552fa9d1295d2cefde4324e1b0748b1c07a5650805dde6c1e1db9254634

            SHA512

            9a2a5d9af0d708e5c52611f439c5c7cba7abb6a23613187eb8256d6273263d784f693cefd74cb6c3fb8f859134687f49e0942b1ed2b5ee88dd18399bccc2a061

          • memory/1612-54-0x0000000076681000-0x0000000076683000-memory.dmp

            Filesize

            8KB

          • memory/1612-55-0x0000000000320000-0x00000000007BE000-memory.dmp

            Filesize

            4.6MB

          • memory/1612-90-0x0000000000320000-0x00000000007BE000-memory.dmp

            Filesize

            4.6MB