Analysis

  • max time kernel
    194s
  • max time network
    212s
  • 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 10:54

General

  • Target

    9d6b971bd8dc07f4d5851cc23fc5c300ea2a8bbe302ec28c86c4fc7d03695475.exe

  • Size

    447KB

  • MD5

    f5b9b46a7b60e4016953c269a13593bf

  • SHA1

    8207c058234137f3be47f279e471cada40b7a840

  • SHA256

    9d6b971bd8dc07f4d5851cc23fc5c300ea2a8bbe302ec28c86c4fc7d03695475

  • SHA512

    bc3b205128a9969d4220e54370ea77e83c30a1d483d3dac98c3de97bfeb21da6409145ee33d708e99220de2ca3a77a429321489e2f672e66d94c118857e8e536

  • SSDEEP

    12288:xMR32xryPdVVdHuv3Bsw8UlLWuge6srk/Hi3p:xAm2PHVRGF8UNWfsaHup

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\9d6b971bd8dc07f4d5851cc23fc5c300ea2a8bbe302ec28c86c4fc7d03695475.exe
    "C:\Users\Admin\AppData\Local\Temp\9d6b971bd8dc07f4d5851cc23fc5c300ea2a8bbe302ec28c86c4fc7d03695475.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:1932
    • C:\Windows\SysWOW64\net.exe
      net stop nethttpservice
      2⤵
      • Suspicious use of WriteProcessMemory
      PID:552
      • C:\Windows\SysWOW64\net1.exe
        C:\Windows\system32\net1 stop nethttpservice
        3⤵
          PID:2056
      • C:\Windows\SysWOW64\net.exe
        net stop serviceupdater
        2⤵
        • Suspicious use of WriteProcessMemory
        PID:4068
        • C:\Windows\SysWOW64\net1.exe
          C:\Windows\system32\net1 stop serviceupdater
          3⤵
            PID:3560
        • C:\Windows\SysWOW64\installd.exe
          "C:\Windows\system32\installd.exe" nethfdrv
          2⤵
          • Executes dropped EXE
          • Loads dropped DLL
          PID:1008
        • C:\Windows\SysWOW64\nethtsrv.exe
          "C:\Windows\system32\nethtsrv.exe" -nfdi
          2⤵
          • Executes dropped EXE
          • Loads dropped DLL
          PID:4384
        • C:\Windows\SysWOW64\netupdsrv.exe
          "C:\Windows\system32\netupdsrv.exe" -nfdi
          2⤵
          • Executes dropped EXE
          PID:1748
        • C:\Windows\SysWOW64\net.exe
          net start nethttpservice
          2⤵
          • Suspicious use of WriteProcessMemory
          PID:2920
          • C:\Windows\SysWOW64\net1.exe
            C:\Windows\system32\net1 start nethttpservice
            3⤵
              PID:1124
          • C:\Windows\SysWOW64\net.exe
            net start serviceupdater
            2⤵
            • Suspicious use of WriteProcessMemory
            PID:700
            • C:\Windows\SysWOW64\net1.exe
              C:\Windows\system32\net1 start serviceupdater
              3⤵
                PID:3444
          • 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:980
          • C:\Windows\SysWOW64\netupdsrv.exe
            C:\Windows\SysWOW64\netupdsrv.exe
            1⤵
            • Executes dropped EXE
            PID:5108

          Network

          MITRE ATT&CK Enterprise v6

          Replay Monitor

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          Downloads

          • C:\Users\Admin\AppData\Local\Temp\nsn74F3.tmp\System.dll

            Filesize

            11KB

            MD5

            c17103ae9072a06da581dec998343fc1

            SHA1

            b72148c6bdfaada8b8c3f950e610ee7cf1da1f8d

            SHA256

            dc58d8ad81cacb0c1ed72e33bff8f23ea40b5252b5bb55d393a0903e6819ae2f

            SHA512

            d32a71aaef18e993f28096d536e41c4d016850721b31171513ce28bbd805a54fd290b7c3e9d935f72e676a1acfb4f0dcc89d95040a0dd29f2b6975855c18986f

          • C:\Users\Admin\AppData\Local\Temp\nsn74F3.tmp\nsExec.dll

            Filesize

            6KB

            MD5

            acc2b699edfea5bf5aae45aba3a41e96

            SHA1

            d2accf4d494e43ceb2cff69abe4dd17147d29cc2

            SHA256

            168a974eaa3f588d759db3f47c1a9fdc3494ba1fa1a73a84e5e3b2a4d58abd7e

            SHA512

            e29ea10ada98c71a18273b04f44f385b120d4e8473e441ce5748cfa44a23648814f2656f429b85440157988c88de776c6ac008dc38bf09cbb746c230a46c69fe

          • C:\Users\Admin\AppData\Local\Temp\nsn74F3.tmp\nsExec.dll

            Filesize

            6KB

            MD5

            acc2b699edfea5bf5aae45aba3a41e96

            SHA1

            d2accf4d494e43ceb2cff69abe4dd17147d29cc2

            SHA256

            168a974eaa3f588d759db3f47c1a9fdc3494ba1fa1a73a84e5e3b2a4d58abd7e

            SHA512

            e29ea10ada98c71a18273b04f44f385b120d4e8473e441ce5748cfa44a23648814f2656f429b85440157988c88de776c6ac008dc38bf09cbb746c230a46c69fe

          • C:\Users\Admin\AppData\Local\Temp\nsn74F3.tmp\nsExec.dll

            Filesize

            6KB

            MD5

            acc2b699edfea5bf5aae45aba3a41e96

            SHA1

            d2accf4d494e43ceb2cff69abe4dd17147d29cc2

            SHA256

            168a974eaa3f588d759db3f47c1a9fdc3494ba1fa1a73a84e5e3b2a4d58abd7e

            SHA512

            e29ea10ada98c71a18273b04f44f385b120d4e8473e441ce5748cfa44a23648814f2656f429b85440157988c88de776c6ac008dc38bf09cbb746c230a46c69fe

          • C:\Users\Admin\AppData\Local\Temp\nsn74F3.tmp\nsExec.dll

            Filesize

            6KB

            MD5

            acc2b699edfea5bf5aae45aba3a41e96

            SHA1

            d2accf4d494e43ceb2cff69abe4dd17147d29cc2

            SHA256

            168a974eaa3f588d759db3f47c1a9fdc3494ba1fa1a73a84e5e3b2a4d58abd7e

            SHA512

            e29ea10ada98c71a18273b04f44f385b120d4e8473e441ce5748cfa44a23648814f2656f429b85440157988c88de776c6ac008dc38bf09cbb746c230a46c69fe

          • C:\Users\Admin\AppData\Local\Temp\nsn74F3.tmp\nsExec.dll

            Filesize

            6KB

            MD5

            acc2b699edfea5bf5aae45aba3a41e96

            SHA1

            d2accf4d494e43ceb2cff69abe4dd17147d29cc2

            SHA256

            168a974eaa3f588d759db3f47c1a9fdc3494ba1fa1a73a84e5e3b2a4d58abd7e

            SHA512

            e29ea10ada98c71a18273b04f44f385b120d4e8473e441ce5748cfa44a23648814f2656f429b85440157988c88de776c6ac008dc38bf09cbb746c230a46c69fe

          • C:\Users\Admin\AppData\Local\Temp\nsn74F3.tmp\nsExec.dll

            Filesize

            6KB

            MD5

            acc2b699edfea5bf5aae45aba3a41e96

            SHA1

            d2accf4d494e43ceb2cff69abe4dd17147d29cc2

            SHA256

            168a974eaa3f588d759db3f47c1a9fdc3494ba1fa1a73a84e5e3b2a4d58abd7e

            SHA512

            e29ea10ada98c71a18273b04f44f385b120d4e8473e441ce5748cfa44a23648814f2656f429b85440157988c88de776c6ac008dc38bf09cbb746c230a46c69fe

          • C:\Users\Admin\AppData\Local\Temp\nsn74F3.tmp\nsExec.dll

            Filesize

            6KB

            MD5

            acc2b699edfea5bf5aae45aba3a41e96

            SHA1

            d2accf4d494e43ceb2cff69abe4dd17147d29cc2

            SHA256

            168a974eaa3f588d759db3f47c1a9fdc3494ba1fa1a73a84e5e3b2a4d58abd7e

            SHA512

            e29ea10ada98c71a18273b04f44f385b120d4e8473e441ce5748cfa44a23648814f2656f429b85440157988c88de776c6ac008dc38bf09cbb746c230a46c69fe

          • C:\Users\Admin\AppData\Local\Temp\nsn74F3.tmp\nsExec.dll

            Filesize

            6KB

            MD5

            acc2b699edfea5bf5aae45aba3a41e96

            SHA1

            d2accf4d494e43ceb2cff69abe4dd17147d29cc2

            SHA256

            168a974eaa3f588d759db3f47c1a9fdc3494ba1fa1a73a84e5e3b2a4d58abd7e

            SHA512

            e29ea10ada98c71a18273b04f44f385b120d4e8473e441ce5748cfa44a23648814f2656f429b85440157988c88de776c6ac008dc38bf09cbb746c230a46c69fe

          • C:\Windows\SysWOW64\hfnapi.dll

            Filesize

            106KB

            MD5

            f439dab42d6bbc5ab359d5161f4e5bac

            SHA1

            07db9cd53698543ba933dae90ee7640ce6ca2637

            SHA256

            2703931accc2be6ee2f10a14497eeed279f2e3e8357edee0310adb067b224a72

            SHA512

            80b14242d643b15367e1d1fa61cc2b1ae4459aa254e8ba8f3ce18a4625eca838a8d1c1611a26fde0ef4c0ff67ba02b812ee0faf21c754b659c1bb914614b383a

          • C:\Windows\SysWOW64\hfnapi.dll

            Filesize

            106KB

            MD5

            f439dab42d6bbc5ab359d5161f4e5bac

            SHA1

            07db9cd53698543ba933dae90ee7640ce6ca2637

            SHA256

            2703931accc2be6ee2f10a14497eeed279f2e3e8357edee0310adb067b224a72

            SHA512

            80b14242d643b15367e1d1fa61cc2b1ae4459aa254e8ba8f3ce18a4625eca838a8d1c1611a26fde0ef4c0ff67ba02b812ee0faf21c754b659c1bb914614b383a

          • C:\Windows\SysWOW64\hfnapi.dll

            Filesize

            106KB

            MD5

            f439dab42d6bbc5ab359d5161f4e5bac

            SHA1

            07db9cd53698543ba933dae90ee7640ce6ca2637

            SHA256

            2703931accc2be6ee2f10a14497eeed279f2e3e8357edee0310adb067b224a72

            SHA512

            80b14242d643b15367e1d1fa61cc2b1ae4459aa254e8ba8f3ce18a4625eca838a8d1c1611a26fde0ef4c0ff67ba02b812ee0faf21c754b659c1bb914614b383a

          • C:\Windows\SysWOW64\hfnapi.dll

            Filesize

            106KB

            MD5

            f439dab42d6bbc5ab359d5161f4e5bac

            SHA1

            07db9cd53698543ba933dae90ee7640ce6ca2637

            SHA256

            2703931accc2be6ee2f10a14497eeed279f2e3e8357edee0310adb067b224a72

            SHA512

            80b14242d643b15367e1d1fa61cc2b1ae4459aa254e8ba8f3ce18a4625eca838a8d1c1611a26fde0ef4c0ff67ba02b812ee0faf21c754b659c1bb914614b383a

          • C:\Windows\SysWOW64\hfpapi.dll

            Filesize

            244KB

            MD5

            1b4b1c5456a7aabbe14fa0c7ec6a4348

            SHA1

            b148d822e4612e08e1cc0153cfedfcf575e504f5

            SHA256

            c820c466f6935558e7606ed35a6efb6a5101b6dbe2e6f4f6989ae0b3802d5f4b

            SHA512

            fe6d0840f8ba3ff7717b4ab86afab8df101fe0241660f03848e16d7fcfbea676beacce45ca6eeb723dbde66948d420c9669380ceef9db50bea5967686714246f

          • C:\Windows\SysWOW64\hfpapi.dll

            Filesize

            244KB

            MD5

            1b4b1c5456a7aabbe14fa0c7ec6a4348

            SHA1

            b148d822e4612e08e1cc0153cfedfcf575e504f5

            SHA256

            c820c466f6935558e7606ed35a6efb6a5101b6dbe2e6f4f6989ae0b3802d5f4b

            SHA512

            fe6d0840f8ba3ff7717b4ab86afab8df101fe0241660f03848e16d7fcfbea676beacce45ca6eeb723dbde66948d420c9669380ceef9db50bea5967686714246f

          • C:\Windows\SysWOW64\hfpapi.dll

            Filesize

            244KB

            MD5

            1b4b1c5456a7aabbe14fa0c7ec6a4348

            SHA1

            b148d822e4612e08e1cc0153cfedfcf575e504f5

            SHA256

            c820c466f6935558e7606ed35a6efb6a5101b6dbe2e6f4f6989ae0b3802d5f4b

            SHA512

            fe6d0840f8ba3ff7717b4ab86afab8df101fe0241660f03848e16d7fcfbea676beacce45ca6eeb723dbde66948d420c9669380ceef9db50bea5967686714246f

          • C:\Windows\SysWOW64\installd.exe

            Filesize

            108KB

            MD5

            a294f1e65e0ef72a45af674a2b49a1bb

            SHA1

            eef100fe488e13117f673c5b296b2607cf744239

            SHA256

            043c05a4ced1e8790cd41ee8f2b3db57ebfedbcab9c5c1931403bf2222021f95

            SHA512

            cff9422a87e113ac41d3d992d7096b34b161ba2668c4215ecec9f83a9ffe1e65d218f0b653926de69f3015d2823e25fe99af0794aa1da45a778aa586c9342755

          • C:\Windows\SysWOW64\installd.exe

            Filesize

            108KB

            MD5

            a294f1e65e0ef72a45af674a2b49a1bb

            SHA1

            eef100fe488e13117f673c5b296b2607cf744239

            SHA256

            043c05a4ced1e8790cd41ee8f2b3db57ebfedbcab9c5c1931403bf2222021f95

            SHA512

            cff9422a87e113ac41d3d992d7096b34b161ba2668c4215ecec9f83a9ffe1e65d218f0b653926de69f3015d2823e25fe99af0794aa1da45a778aa586c9342755

          • C:\Windows\SysWOW64\nethtsrv.exe

            Filesize

            176KB

            MD5

            780b75fdbd8c9ede0350e55175e90ab4

            SHA1

            8281f5b9ff59c187c1fa8a39a3770bc1762dbc2b

            SHA256

            186cecbf9ed2c10ef89bb09e9510a9cc6387d117402af96c051c7b71a40c8ca8

            SHA512

            0a53cbebe4103d93370227daab24c6bd8c7befa294fc8009397d35cbcb7c410e053703cfbdef7fb85db65682629790a1bd48d8626de6fe3fbab0ce71a70aaf2c

          • C:\Windows\SysWOW64\nethtsrv.exe

            Filesize

            176KB

            MD5

            780b75fdbd8c9ede0350e55175e90ab4

            SHA1

            8281f5b9ff59c187c1fa8a39a3770bc1762dbc2b

            SHA256

            186cecbf9ed2c10ef89bb09e9510a9cc6387d117402af96c051c7b71a40c8ca8

            SHA512

            0a53cbebe4103d93370227daab24c6bd8c7befa294fc8009397d35cbcb7c410e053703cfbdef7fb85db65682629790a1bd48d8626de6fe3fbab0ce71a70aaf2c

          • C:\Windows\SysWOW64\nethtsrv.exe

            Filesize

            176KB

            MD5

            780b75fdbd8c9ede0350e55175e90ab4

            SHA1

            8281f5b9ff59c187c1fa8a39a3770bc1762dbc2b

            SHA256

            186cecbf9ed2c10ef89bb09e9510a9cc6387d117402af96c051c7b71a40c8ca8

            SHA512

            0a53cbebe4103d93370227daab24c6bd8c7befa294fc8009397d35cbcb7c410e053703cfbdef7fb85db65682629790a1bd48d8626de6fe3fbab0ce71a70aaf2c

          • C:\Windows\SysWOW64\netupdsrv.exe

            Filesize

            158KB

            MD5

            6431cb0e6557125325a546274139d340

            SHA1

            37070d1e8d932f7310ca01540712abf7643d12ee

            SHA256

            cb867529e661791a0fff27363fc27bf8a2b1691b3efbf1e0ce2c836e39a1064c

            SHA512

            5fc5d3e75b242aa0770781d65ccaef9e1de1cb945fdab6630ee820b465849b35d7a1ba417b37e590a887485005cdbe049530e9616a622e243d9b864631955b41

          • C:\Windows\SysWOW64\netupdsrv.exe

            Filesize

            158KB

            MD5

            6431cb0e6557125325a546274139d340

            SHA1

            37070d1e8d932f7310ca01540712abf7643d12ee

            SHA256

            cb867529e661791a0fff27363fc27bf8a2b1691b3efbf1e0ce2c836e39a1064c

            SHA512

            5fc5d3e75b242aa0770781d65ccaef9e1de1cb945fdab6630ee820b465849b35d7a1ba417b37e590a887485005cdbe049530e9616a622e243d9b864631955b41

          • C:\Windows\SysWOW64\netupdsrv.exe

            Filesize

            158KB

            MD5

            6431cb0e6557125325a546274139d340

            SHA1

            37070d1e8d932f7310ca01540712abf7643d12ee

            SHA256

            cb867529e661791a0fff27363fc27bf8a2b1691b3efbf1e0ce2c836e39a1064c

            SHA512

            5fc5d3e75b242aa0770781d65ccaef9e1de1cb945fdab6630ee820b465849b35d7a1ba417b37e590a887485005cdbe049530e9616a622e243d9b864631955b41

          • memory/552-135-0x0000000000000000-mapping.dmp

          • memory/700-164-0x0000000000000000-mapping.dmp

          • memory/1008-141-0x0000000000000000-mapping.dmp

          • memory/1124-158-0x0000000000000000-mapping.dmp

          • memory/1748-152-0x0000000000000000-mapping.dmp

          • memory/2056-136-0x0000000000000000-mapping.dmp

          • memory/2920-157-0x0000000000000000-mapping.dmp

          • memory/3444-165-0x0000000000000000-mapping.dmp

          • memory/3560-140-0x0000000000000000-mapping.dmp

          • memory/4068-139-0x0000000000000000-mapping.dmp

          • memory/4384-146-0x0000000000000000-mapping.dmp