Analysis

  • max time kernel
    152s
  • max time network
    174s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20220812-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20220812-enlocale:en-usos:windows10-2004-x64system
  • submitted
    23-11-2022 10:57

General

  • Target

    44a1dedd4bf5cb38db96459c37760bee28b71bf2eb91ee3840434a8336087deb.exe

  • Size

    447KB

  • MD5

    888f349d7b078c1754ea23eb96ebfd16

  • SHA1

    3fbf7253a56b5a83c4a182b2e20671e200952912

  • SHA256

    44a1dedd4bf5cb38db96459c37760bee28b71bf2eb91ee3840434a8336087deb

  • SHA512

    24c3d9ec38506b4b02efd51cc73404f8d3201212cf533d8ca47b3fcd243ecef69e5b0488db1171a842fe9c75b6b645e79a1ca50ca15aa447262ec12087d87d71

  • SSDEEP

    12288:opmp933mDUvcE60P+f/xXzJa3/4TLHhru:oSHmDEO/xXzGQTL9u

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\44a1dedd4bf5cb38db96459c37760bee28b71bf2eb91ee3840434a8336087deb.exe
    "C:\Users\Admin\AppData\Local\Temp\44a1dedd4bf5cb38db96459c37760bee28b71bf2eb91ee3840434a8336087deb.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:5112
    • C:\Windows\SysWOW64\net.exe
      net stop nethttpservice
      2⤵
      • Suspicious use of WriteProcessMemory
      PID:2212
      • C:\Windows\SysWOW64\net1.exe
        C:\Windows\system32\net1 stop nethttpservice
        3⤵
          PID:4832
      • C:\Windows\SysWOW64\net.exe
        net stop serviceupdater
        2⤵
        • Suspicious use of WriteProcessMemory
        PID:4580
        • C:\Windows\SysWOW64\net1.exe
          C:\Windows\system32\net1 stop serviceupdater
          3⤵
            PID:4680
        • C:\Windows\SysWOW64\installd.exe
          "C:\Windows\system32\installd.exe" nethfdrv
          2⤵
          • Executes dropped EXE
          • Loads dropped DLL
          PID:4764
        • C:\Windows\SysWOW64\nethtsrv.exe
          "C:\Windows\system32\nethtsrv.exe" -nfdi
          2⤵
          • Executes dropped EXE
          • Loads dropped DLL
          PID:1600
        • C:\Windows\SysWOW64\netupdsrv.exe
          "C:\Windows\system32\netupdsrv.exe" -nfdi
          2⤵
          • Executes dropped EXE
          PID:1072
        • C:\Windows\SysWOW64\net.exe
          net start nethttpservice
          2⤵
          • Suspicious use of WriteProcessMemory
          PID:1772
          • C:\Windows\SysWOW64\net1.exe
            C:\Windows\system32\net1 start nethttpservice
            3⤵
              PID:4676
          • C:\Windows\SysWOW64\net.exe
            net start serviceupdater
            2⤵
            • Suspicious use of WriteProcessMemory
            PID:208
            • C:\Windows\SysWOW64\net1.exe
              C:\Windows\system32\net1 start serviceupdater
              3⤵
                PID:2308
          • 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:2144
          • C:\Windows\SysWOW64\netupdsrv.exe
            C:\Windows\SysWOW64\netupdsrv.exe
            1⤵
            • Executes dropped EXE
            PID:3180

          Network

          MITRE ATT&CK Enterprise v6

          Replay Monitor

          Loading Replay Monitor...

          Downloads

          • C:\Users\Admin\AppData\Local\Temp\nsqC952.tmp\System.dll

            Filesize

            11KB

            MD5

            c17103ae9072a06da581dec998343fc1

            SHA1

            b72148c6bdfaada8b8c3f950e610ee7cf1da1f8d

            SHA256

            dc58d8ad81cacb0c1ed72e33bff8f23ea40b5252b5bb55d393a0903e6819ae2f

            SHA512

            d32a71aaef18e993f28096d536e41c4d016850721b31171513ce28bbd805a54fd290b7c3e9d935f72e676a1acfb4f0dcc89d95040a0dd29f2b6975855c18986f

          • C:\Users\Admin\AppData\Local\Temp\nsqC952.tmp\nsExec.dll

            Filesize

            6KB

            MD5

            acc2b699edfea5bf5aae45aba3a41e96

            SHA1

            d2accf4d494e43ceb2cff69abe4dd17147d29cc2

            SHA256

            168a974eaa3f588d759db3f47c1a9fdc3494ba1fa1a73a84e5e3b2a4d58abd7e

            SHA512

            e29ea10ada98c71a18273b04f44f385b120d4e8473e441ce5748cfa44a23648814f2656f429b85440157988c88de776c6ac008dc38bf09cbb746c230a46c69fe

          • C:\Users\Admin\AppData\Local\Temp\nsqC952.tmp\nsExec.dll

            Filesize

            6KB

            MD5

            acc2b699edfea5bf5aae45aba3a41e96

            SHA1

            d2accf4d494e43ceb2cff69abe4dd17147d29cc2

            SHA256

            168a974eaa3f588d759db3f47c1a9fdc3494ba1fa1a73a84e5e3b2a4d58abd7e

            SHA512

            e29ea10ada98c71a18273b04f44f385b120d4e8473e441ce5748cfa44a23648814f2656f429b85440157988c88de776c6ac008dc38bf09cbb746c230a46c69fe

          • C:\Users\Admin\AppData\Local\Temp\nsqC952.tmp\nsExec.dll

            Filesize

            6KB

            MD5

            acc2b699edfea5bf5aae45aba3a41e96

            SHA1

            d2accf4d494e43ceb2cff69abe4dd17147d29cc2

            SHA256

            168a974eaa3f588d759db3f47c1a9fdc3494ba1fa1a73a84e5e3b2a4d58abd7e

            SHA512

            e29ea10ada98c71a18273b04f44f385b120d4e8473e441ce5748cfa44a23648814f2656f429b85440157988c88de776c6ac008dc38bf09cbb746c230a46c69fe

          • C:\Users\Admin\AppData\Local\Temp\nsqC952.tmp\nsExec.dll

            Filesize

            6KB

            MD5

            acc2b699edfea5bf5aae45aba3a41e96

            SHA1

            d2accf4d494e43ceb2cff69abe4dd17147d29cc2

            SHA256

            168a974eaa3f588d759db3f47c1a9fdc3494ba1fa1a73a84e5e3b2a4d58abd7e

            SHA512

            e29ea10ada98c71a18273b04f44f385b120d4e8473e441ce5748cfa44a23648814f2656f429b85440157988c88de776c6ac008dc38bf09cbb746c230a46c69fe

          • C:\Users\Admin\AppData\Local\Temp\nsqC952.tmp\nsExec.dll

            Filesize

            6KB

            MD5

            acc2b699edfea5bf5aae45aba3a41e96

            SHA1

            d2accf4d494e43ceb2cff69abe4dd17147d29cc2

            SHA256

            168a974eaa3f588d759db3f47c1a9fdc3494ba1fa1a73a84e5e3b2a4d58abd7e

            SHA512

            e29ea10ada98c71a18273b04f44f385b120d4e8473e441ce5748cfa44a23648814f2656f429b85440157988c88de776c6ac008dc38bf09cbb746c230a46c69fe

          • C:\Users\Admin\AppData\Local\Temp\nsqC952.tmp\nsExec.dll

            Filesize

            6KB

            MD5

            acc2b699edfea5bf5aae45aba3a41e96

            SHA1

            d2accf4d494e43ceb2cff69abe4dd17147d29cc2

            SHA256

            168a974eaa3f588d759db3f47c1a9fdc3494ba1fa1a73a84e5e3b2a4d58abd7e

            SHA512

            e29ea10ada98c71a18273b04f44f385b120d4e8473e441ce5748cfa44a23648814f2656f429b85440157988c88de776c6ac008dc38bf09cbb746c230a46c69fe

          • C:\Users\Admin\AppData\Local\Temp\nsqC952.tmp\nsExec.dll

            Filesize

            6KB

            MD5

            acc2b699edfea5bf5aae45aba3a41e96

            SHA1

            d2accf4d494e43ceb2cff69abe4dd17147d29cc2

            SHA256

            168a974eaa3f588d759db3f47c1a9fdc3494ba1fa1a73a84e5e3b2a4d58abd7e

            SHA512

            e29ea10ada98c71a18273b04f44f385b120d4e8473e441ce5748cfa44a23648814f2656f429b85440157988c88de776c6ac008dc38bf09cbb746c230a46c69fe

          • C:\Users\Admin\AppData\Local\Temp\nsqC952.tmp\nsExec.dll

            Filesize

            6KB

            MD5

            acc2b699edfea5bf5aae45aba3a41e96

            SHA1

            d2accf4d494e43ceb2cff69abe4dd17147d29cc2

            SHA256

            168a974eaa3f588d759db3f47c1a9fdc3494ba1fa1a73a84e5e3b2a4d58abd7e

            SHA512

            e29ea10ada98c71a18273b04f44f385b120d4e8473e441ce5748cfa44a23648814f2656f429b85440157988c88de776c6ac008dc38bf09cbb746c230a46c69fe

          • C:\Windows\SysWOW64\hfnapi.dll

            Filesize

            106KB

            MD5

            fcef1fbdbce894af0130a50b70d13ef9

            SHA1

            e60eb9a9f10fdfa362219ee949e45864293a83bc

            SHA256

            68bbec4a17d2a365efd18465be49b447c844771a3e062ec5e213e5c6eabdd49f

            SHA512

            bc4a1d208821f7812ab4fafea73c3c262c3642b49c2778ad1188a9d4fcf1f69f44ab4ba8e2441bb88927ab01f408292f84f3dfd1ac44510f9752dcabb9f0f3f3

          • C:\Windows\SysWOW64\hfnapi.dll

            Filesize

            106KB

            MD5

            fcef1fbdbce894af0130a50b70d13ef9

            SHA1

            e60eb9a9f10fdfa362219ee949e45864293a83bc

            SHA256

            68bbec4a17d2a365efd18465be49b447c844771a3e062ec5e213e5c6eabdd49f

            SHA512

            bc4a1d208821f7812ab4fafea73c3c262c3642b49c2778ad1188a9d4fcf1f69f44ab4ba8e2441bb88927ab01f408292f84f3dfd1ac44510f9752dcabb9f0f3f3

          • C:\Windows\SysWOW64\hfnapi.dll

            Filesize

            106KB

            MD5

            fcef1fbdbce894af0130a50b70d13ef9

            SHA1

            e60eb9a9f10fdfa362219ee949e45864293a83bc

            SHA256

            68bbec4a17d2a365efd18465be49b447c844771a3e062ec5e213e5c6eabdd49f

            SHA512

            bc4a1d208821f7812ab4fafea73c3c262c3642b49c2778ad1188a9d4fcf1f69f44ab4ba8e2441bb88927ab01f408292f84f3dfd1ac44510f9752dcabb9f0f3f3

          • C:\Windows\SysWOW64\hfnapi.dll

            Filesize

            106KB

            MD5

            fcef1fbdbce894af0130a50b70d13ef9

            SHA1

            e60eb9a9f10fdfa362219ee949e45864293a83bc

            SHA256

            68bbec4a17d2a365efd18465be49b447c844771a3e062ec5e213e5c6eabdd49f

            SHA512

            bc4a1d208821f7812ab4fafea73c3c262c3642b49c2778ad1188a9d4fcf1f69f44ab4ba8e2441bb88927ab01f408292f84f3dfd1ac44510f9752dcabb9f0f3f3

          • C:\Windows\SysWOW64\hfpapi.dll

            Filesize

            244KB

            MD5

            a80c38ad9f5c8967c2180b95f8fe04bc

            SHA1

            51ba1374dcc5ef07f64ce0f379c8ea876e7e165f

            SHA256

            a49db760807345a65291131c0c82937fd638d887bad3b7608ba182f176056fe8

            SHA512

            0b3c7a4be3642dd60b07e59ecd402f9ddcfa8670635373e2c9d275543c71558194cdcd7dc8f7e6194fcb9b7f41c6f5cde68f061afad50d7b8408f878fd7e578d

          • C:\Windows\SysWOW64\hfpapi.dll

            Filesize

            244KB

            MD5

            a80c38ad9f5c8967c2180b95f8fe04bc

            SHA1

            51ba1374dcc5ef07f64ce0f379c8ea876e7e165f

            SHA256

            a49db760807345a65291131c0c82937fd638d887bad3b7608ba182f176056fe8

            SHA512

            0b3c7a4be3642dd60b07e59ecd402f9ddcfa8670635373e2c9d275543c71558194cdcd7dc8f7e6194fcb9b7f41c6f5cde68f061afad50d7b8408f878fd7e578d

          • C:\Windows\SysWOW64\hfpapi.dll

            Filesize

            244KB

            MD5

            a80c38ad9f5c8967c2180b95f8fe04bc

            SHA1

            51ba1374dcc5ef07f64ce0f379c8ea876e7e165f

            SHA256

            a49db760807345a65291131c0c82937fd638d887bad3b7608ba182f176056fe8

            SHA512

            0b3c7a4be3642dd60b07e59ecd402f9ddcfa8670635373e2c9d275543c71558194cdcd7dc8f7e6194fcb9b7f41c6f5cde68f061afad50d7b8408f878fd7e578d

          • C:\Windows\SysWOW64\installd.exe

            Filesize

            108KB

            MD5

            ac72854074bab05daa5dab9d4a871b00

            SHA1

            18b68062d55fbecf9d692291666ebe797f1ff2bf

            SHA256

            d9f32ee56498f0816843c641a131d293a36c7398a75a73ca8a59bf467b7770d5

            SHA512

            1be232c418806eea79746aee40f272befebd1a372040c5a66bf4538d6afcae1febcb8522a7de17e2881337ab9c492351fbc3bb7b7cf2e523bc3882ff018996e4

          • C:\Windows\SysWOW64\installd.exe

            Filesize

            108KB

            MD5

            ac72854074bab05daa5dab9d4a871b00

            SHA1

            18b68062d55fbecf9d692291666ebe797f1ff2bf

            SHA256

            d9f32ee56498f0816843c641a131d293a36c7398a75a73ca8a59bf467b7770d5

            SHA512

            1be232c418806eea79746aee40f272befebd1a372040c5a66bf4538d6afcae1febcb8522a7de17e2881337ab9c492351fbc3bb7b7cf2e523bc3882ff018996e4

          • C:\Windows\SysWOW64\nethtsrv.exe

            Filesize

            176KB

            MD5

            043b6ae7c6fc014315f55f11a6bfc7af

            SHA1

            6f4ed2c230f3d35ded3c4cbefbdd9b8a5ad70c46

            SHA256

            37df66fdb07c084cd4e882a7fdaeef9a9134cfdb1fdaa622f08864be0880810d

            SHA512

            d4833d1b4ad053eef32cc15a213e6103e681235d9e85d45a6c56fd5de6802d4dd07845596cb790585af8eba021a1cea5a1b4ef5e92f0e64adfea1d73ad9f0904

          • C:\Windows\SysWOW64\nethtsrv.exe

            Filesize

            176KB

            MD5

            043b6ae7c6fc014315f55f11a6bfc7af

            SHA1

            6f4ed2c230f3d35ded3c4cbefbdd9b8a5ad70c46

            SHA256

            37df66fdb07c084cd4e882a7fdaeef9a9134cfdb1fdaa622f08864be0880810d

            SHA512

            d4833d1b4ad053eef32cc15a213e6103e681235d9e85d45a6c56fd5de6802d4dd07845596cb790585af8eba021a1cea5a1b4ef5e92f0e64adfea1d73ad9f0904

          • C:\Windows\SysWOW64\nethtsrv.exe

            Filesize

            176KB

            MD5

            043b6ae7c6fc014315f55f11a6bfc7af

            SHA1

            6f4ed2c230f3d35ded3c4cbefbdd9b8a5ad70c46

            SHA256

            37df66fdb07c084cd4e882a7fdaeef9a9134cfdb1fdaa622f08864be0880810d

            SHA512

            d4833d1b4ad053eef32cc15a213e6103e681235d9e85d45a6c56fd5de6802d4dd07845596cb790585af8eba021a1cea5a1b4ef5e92f0e64adfea1d73ad9f0904

          • C:\Windows\SysWOW64\netupdsrv.exe

            Filesize

            158KB

            MD5

            179dfefab9aae8bc13fd2974e86293cf

            SHA1

            966700bced4ef3568190f4d1643596eeae7ace8a

            SHA256

            542cbafc02c83ff915371d9df2c48ead1c48a80bed89e7465b72a1f306cd5263

            SHA512

            007e47a52000563a5f4f50a56f47cfa0323faa878e1f17189e239c115bbc9391cdf4408959510375222963ad24bb1cdda5b2f843e7616928a127a1b4877711e3

          • C:\Windows\SysWOW64\netupdsrv.exe

            Filesize

            158KB

            MD5

            179dfefab9aae8bc13fd2974e86293cf

            SHA1

            966700bced4ef3568190f4d1643596eeae7ace8a

            SHA256

            542cbafc02c83ff915371d9df2c48ead1c48a80bed89e7465b72a1f306cd5263

            SHA512

            007e47a52000563a5f4f50a56f47cfa0323faa878e1f17189e239c115bbc9391cdf4408959510375222963ad24bb1cdda5b2f843e7616928a127a1b4877711e3

          • C:\Windows\SysWOW64\netupdsrv.exe

            Filesize

            158KB

            MD5

            179dfefab9aae8bc13fd2974e86293cf

            SHA1

            966700bced4ef3568190f4d1643596eeae7ace8a

            SHA256

            542cbafc02c83ff915371d9df2c48ead1c48a80bed89e7465b72a1f306cd5263

            SHA512

            007e47a52000563a5f4f50a56f47cfa0323faa878e1f17189e239c115bbc9391cdf4408959510375222963ad24bb1cdda5b2f843e7616928a127a1b4877711e3

          • memory/208-164-0x0000000000000000-mapping.dmp

          • memory/1072-152-0x0000000000000000-mapping.dmp

          • memory/1600-146-0x0000000000000000-mapping.dmp

          • memory/1772-157-0x0000000000000000-mapping.dmp

          • memory/2212-135-0x0000000000000000-mapping.dmp

          • memory/2308-165-0x0000000000000000-mapping.dmp

          • memory/4580-139-0x0000000000000000-mapping.dmp

          • memory/4676-158-0x0000000000000000-mapping.dmp

          • memory/4680-140-0x0000000000000000-mapping.dmp

          • memory/4764-141-0x0000000000000000-mapping.dmp

          • memory/4832-136-0x0000000000000000-mapping.dmp