Analysis

  • max time kernel
    60s
  • max time network
    127s
  • platform
    windows7_x64
  • resource
    win7-20221111-en
  • resource tags

    arch:x64arch:x86image:win7-20221111-enlocale:en-usos:windows7-x64system
  • submitted
    23-11-2022 10:24

General

  • Target

    68e53bfb7b10be23573f64437591654b07b3bb57dd22d79a49ed5bfef4dff19c.exe

  • Size

    603KB

  • MD5

    44e2793880b75850880aade9ad427591

  • SHA1

    05906e52a1d9e82f8e014c59c74a532b36036d90

  • SHA256

    68e53bfb7b10be23573f64437591654b07b3bb57dd22d79a49ed5bfef4dff19c

  • SHA512

    8efb5bd2808d3db9026a2282010f5eba6cdc59b5be7bb43247a35a1606474cb15d3d2816eacbcdd21ff6e1af65f79f49c328b5e4cb23545215f02d0fbfe2fa73

  • SSDEEP

    12288:cIny5DYTPWT31E5/KJ/w5f2Q0ajwm/rehqpHXAsYgC:6UTPkk/KJ635cJhdb

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\68e53bfb7b10be23573f64437591654b07b3bb57dd22d79a49ed5bfef4dff19c.exe
    "C:\Users\Admin\AppData\Local\Temp\68e53bfb7b10be23573f64437591654b07b3bb57dd22d79a49ed5bfef4dff19c.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:520
    • C:\Windows\SysWOW64\net.exe
      net stop nethttpservice
      2⤵
      • Suspicious use of WriteProcessMemory
      PID:1152
      • C:\Windows\SysWOW64\net1.exe
        C:\Windows\system32\net1 stop nethttpservice
        3⤵
          PID:744
      • C:\Windows\SysWOW64\net.exe
        net stop serviceupdater
        2⤵
        • Suspicious use of WriteProcessMemory
        PID:1764
        • C:\Windows\SysWOW64\net1.exe
          C:\Windows\system32\net1 stop serviceupdater
          3⤵
            PID:1740
        • C:\Windows\SysWOW64\installd.exe
          "C:\Windows\system32\installd.exe" nethfdrv
          2⤵
          • Executes dropped EXE
          • Loads dropped DLL
          PID:1800
        • C:\Windows\SysWOW64\nethtsrv.exe
          "C:\Windows\system32\nethtsrv.exe" -nfdi
          2⤵
          • Executes dropped EXE
          • Loads dropped DLL
          PID:1364
        • C:\Windows\SysWOW64\netupdsrv.exe
          "C:\Windows\system32\netupdsrv.exe" -nfdi
          2⤵
          • Executes dropped EXE
          PID:300
        • C:\Windows\SysWOW64\net.exe
          net start nethttpservice
          2⤵
          • Suspicious use of WriteProcessMemory
          PID:1932
          • C:\Windows\SysWOW64\net1.exe
            C:\Windows\system32\net1 start nethttpservice
            3⤵
              PID:2044
          • C:\Windows\SysWOW64\net.exe
            net start serviceupdater
            2⤵
            • Suspicious use of WriteProcessMemory
            PID:1272
            • C:\Windows\SysWOW64\net1.exe
              C:\Windows\system32\net1 start serviceupdater
              3⤵
                PID:1488
          • C:\Windows\SysWOW64\nethtsrv.exe
            C:\Windows\SysWOW64\nethtsrv.exe
            1⤵
            • Executes dropped EXE
            • Loads dropped DLL
            • Suspicious use of AdjustPrivilegeToken
            PID:960
          • C:\Windows\SysWOW64\netupdsrv.exe
            C:\Windows\SysWOW64\netupdsrv.exe
            1⤵
            • Executes dropped EXE
            PID:1452

          Network

          MITRE ATT&CK Enterprise v6

          Replay Monitor

          Loading Replay Monitor...

          Downloads

          • C:\Windows\SysWOW64\hfnapi.dll

            Filesize

            106KB

            MD5

            a3ce26c68c1363840cc866f7bb637ae6

            SHA1

            491e08b9a074aa203fbc417914db6cfab32c9df1

            SHA256

            1bb20414390e46b3b198c7f940a9ab18c7d0876a04f71123a16d181b78784b0e

            SHA512

            be80ab50214e922d1d98bdc4afd323c9af2d61481617cabab4ac80b0c6757a347a317df685696932ba9a9836fcb79e2d843f85d871812313dc600ec80b56256d

          • C:\Windows\SysWOW64\hfpapi.dll

            Filesize

            244KB

            MD5

            e3254ccc959693d1b0a3ca2795c93971

            SHA1

            10250206fd68c1809dadb24e7c57bbfbf4d015d1

            SHA256

            8e4fd692068782a7f22f1fa857b3b622027d1df784ceb3e5b083b3c792ecf92a

            SHA512

            60feaa7bddf2ea3c7036c0ae922a566592df9cdf3c264ed4462c7e0f017701fb75457783f0f354bcde68d590084e3369440e0f4fd8034f1eadad8646a59d08d0

          • C:\Windows\SysWOW64\installd.exe

            Filesize

            108KB

            MD5

            4dff98a9caf64e77b1ada4bce77c220a

            SHA1

            fe802f719b157db9c86f2ccc13ee4dc8a1588ad6

            SHA256

            e8c17333452c3fe9d3c5f10404c7eba4b1028b5d3019eade45ab87986dbb2ded

            SHA512

            52f8aeca3b58a0a107e258b9923c8905c38c6f1976d9e0a4536283e23ad7fa39ce11445fa117f847c384e6421e49b9a06f2b99642f4e693938943c3af8f57c45

          • C:\Windows\SysWOW64\nethtsrv.exe

            Filesize

            176KB

            MD5

            e9e2bc6dfc02b838fb6f951c2748784f

            SHA1

            edfa0154e92a69c77075cf8293231d642451bc50

            SHA256

            a859aeb70ca0d579a9b4f5b19ab9192f2c039d9bbfbaab7fffcbf9776bb7ae12

            SHA512

            d0d3ff65b0434a2924a13cfffaed35ba24a565179bb08a3cd931f22a3c955fc10d8fa54109f56354b46e6a31cc3e9b48971dfe71bb08fc8e8bd847a62348df10

          • C:\Windows\SysWOW64\nethtsrv.exe

            Filesize

            176KB

            MD5

            e9e2bc6dfc02b838fb6f951c2748784f

            SHA1

            edfa0154e92a69c77075cf8293231d642451bc50

            SHA256

            a859aeb70ca0d579a9b4f5b19ab9192f2c039d9bbfbaab7fffcbf9776bb7ae12

            SHA512

            d0d3ff65b0434a2924a13cfffaed35ba24a565179bb08a3cd931f22a3c955fc10d8fa54109f56354b46e6a31cc3e9b48971dfe71bb08fc8e8bd847a62348df10

          • C:\Windows\SysWOW64\netupdsrv.exe

            Filesize

            159KB

            MD5

            f9e534f44d350b25cbdfe073a0dd2a20

            SHA1

            bc8fd68a0aa6770d06699a976f1fc5a35a7840ff

            SHA256

            3580cfe86b6286295f36cb61413b1e2f48d7af96ec41d88a21133144a5c226c6

            SHA512

            363ba771d88c1d47b150786c054c0a0465a766157836ed3fcadbde2a21a552c2e870c6c8dc9ee6a7e68115108c8ef3d005a1125c440f82a1beff9bb8a6324304

          • C:\Windows\SysWOW64\netupdsrv.exe

            Filesize

            159KB

            MD5

            f9e534f44d350b25cbdfe073a0dd2a20

            SHA1

            bc8fd68a0aa6770d06699a976f1fc5a35a7840ff

            SHA256

            3580cfe86b6286295f36cb61413b1e2f48d7af96ec41d88a21133144a5c226c6

            SHA512

            363ba771d88c1d47b150786c054c0a0465a766157836ed3fcadbde2a21a552c2e870c6c8dc9ee6a7e68115108c8ef3d005a1125c440f82a1beff9bb8a6324304

          • \Users\Admin\AppData\Local\Temp\nsyE7D2.tmp\System.dll

            Filesize

            11KB

            MD5

            c17103ae9072a06da581dec998343fc1

            SHA1

            b72148c6bdfaada8b8c3f950e610ee7cf1da1f8d

            SHA256

            dc58d8ad81cacb0c1ed72e33bff8f23ea40b5252b5bb55d393a0903e6819ae2f

            SHA512

            d32a71aaef18e993f28096d536e41c4d016850721b31171513ce28bbd805a54fd290b7c3e9d935f72e676a1acfb4f0dcc89d95040a0dd29f2b6975855c18986f

          • \Users\Admin\AppData\Local\Temp\nsyE7D2.tmp\nsExec.dll

            Filesize

            6KB

            MD5

            acc2b699edfea5bf5aae45aba3a41e96

            SHA1

            d2accf4d494e43ceb2cff69abe4dd17147d29cc2

            SHA256

            168a974eaa3f588d759db3f47c1a9fdc3494ba1fa1a73a84e5e3b2a4d58abd7e

            SHA512

            e29ea10ada98c71a18273b04f44f385b120d4e8473e441ce5748cfa44a23648814f2656f429b85440157988c88de776c6ac008dc38bf09cbb746c230a46c69fe

          • \Users\Admin\AppData\Local\Temp\nsyE7D2.tmp\nsExec.dll

            Filesize

            6KB

            MD5

            acc2b699edfea5bf5aae45aba3a41e96

            SHA1

            d2accf4d494e43ceb2cff69abe4dd17147d29cc2

            SHA256

            168a974eaa3f588d759db3f47c1a9fdc3494ba1fa1a73a84e5e3b2a4d58abd7e

            SHA512

            e29ea10ada98c71a18273b04f44f385b120d4e8473e441ce5748cfa44a23648814f2656f429b85440157988c88de776c6ac008dc38bf09cbb746c230a46c69fe

          • \Users\Admin\AppData\Local\Temp\nsyE7D2.tmp\nsExec.dll

            Filesize

            6KB

            MD5

            acc2b699edfea5bf5aae45aba3a41e96

            SHA1

            d2accf4d494e43ceb2cff69abe4dd17147d29cc2

            SHA256

            168a974eaa3f588d759db3f47c1a9fdc3494ba1fa1a73a84e5e3b2a4d58abd7e

            SHA512

            e29ea10ada98c71a18273b04f44f385b120d4e8473e441ce5748cfa44a23648814f2656f429b85440157988c88de776c6ac008dc38bf09cbb746c230a46c69fe

          • \Users\Admin\AppData\Local\Temp\nsyE7D2.tmp\nsExec.dll

            Filesize

            6KB

            MD5

            acc2b699edfea5bf5aae45aba3a41e96

            SHA1

            d2accf4d494e43ceb2cff69abe4dd17147d29cc2

            SHA256

            168a974eaa3f588d759db3f47c1a9fdc3494ba1fa1a73a84e5e3b2a4d58abd7e

            SHA512

            e29ea10ada98c71a18273b04f44f385b120d4e8473e441ce5748cfa44a23648814f2656f429b85440157988c88de776c6ac008dc38bf09cbb746c230a46c69fe

          • \Windows\SysWOW64\hfnapi.dll

            Filesize

            106KB

            MD5

            a3ce26c68c1363840cc866f7bb637ae6

            SHA1

            491e08b9a074aa203fbc417914db6cfab32c9df1

            SHA256

            1bb20414390e46b3b198c7f940a9ab18c7d0876a04f71123a16d181b78784b0e

            SHA512

            be80ab50214e922d1d98bdc4afd323c9af2d61481617cabab4ac80b0c6757a347a317df685696932ba9a9836fcb79e2d843f85d871812313dc600ec80b56256d

          • \Windows\SysWOW64\hfnapi.dll

            Filesize

            106KB

            MD5

            a3ce26c68c1363840cc866f7bb637ae6

            SHA1

            491e08b9a074aa203fbc417914db6cfab32c9df1

            SHA256

            1bb20414390e46b3b198c7f940a9ab18c7d0876a04f71123a16d181b78784b0e

            SHA512

            be80ab50214e922d1d98bdc4afd323c9af2d61481617cabab4ac80b0c6757a347a317df685696932ba9a9836fcb79e2d843f85d871812313dc600ec80b56256d

          • \Windows\SysWOW64\hfnapi.dll

            Filesize

            106KB

            MD5

            a3ce26c68c1363840cc866f7bb637ae6

            SHA1

            491e08b9a074aa203fbc417914db6cfab32c9df1

            SHA256

            1bb20414390e46b3b198c7f940a9ab18c7d0876a04f71123a16d181b78784b0e

            SHA512

            be80ab50214e922d1d98bdc4afd323c9af2d61481617cabab4ac80b0c6757a347a317df685696932ba9a9836fcb79e2d843f85d871812313dc600ec80b56256d

          • \Windows\SysWOW64\hfpapi.dll

            Filesize

            244KB

            MD5

            e3254ccc959693d1b0a3ca2795c93971

            SHA1

            10250206fd68c1809dadb24e7c57bbfbf4d015d1

            SHA256

            8e4fd692068782a7f22f1fa857b3b622027d1df784ceb3e5b083b3c792ecf92a

            SHA512

            60feaa7bddf2ea3c7036c0ae922a566592df9cdf3c264ed4462c7e0f017701fb75457783f0f354bcde68d590084e3369440e0f4fd8034f1eadad8646a59d08d0

          • \Windows\SysWOW64\hfpapi.dll

            Filesize

            244KB

            MD5

            e3254ccc959693d1b0a3ca2795c93971

            SHA1

            10250206fd68c1809dadb24e7c57bbfbf4d015d1

            SHA256

            8e4fd692068782a7f22f1fa857b3b622027d1df784ceb3e5b083b3c792ecf92a

            SHA512

            60feaa7bddf2ea3c7036c0ae922a566592df9cdf3c264ed4462c7e0f017701fb75457783f0f354bcde68d590084e3369440e0f4fd8034f1eadad8646a59d08d0

          • \Windows\SysWOW64\installd.exe

            Filesize

            108KB

            MD5

            4dff98a9caf64e77b1ada4bce77c220a

            SHA1

            fe802f719b157db9c86f2ccc13ee4dc8a1588ad6

            SHA256

            e8c17333452c3fe9d3c5f10404c7eba4b1028b5d3019eade45ab87986dbb2ded

            SHA512

            52f8aeca3b58a0a107e258b9923c8905c38c6f1976d9e0a4536283e23ad7fa39ce11445fa117f847c384e6421e49b9a06f2b99642f4e693938943c3af8f57c45

          • \Windows\SysWOW64\nethtsrv.exe

            Filesize

            176KB

            MD5

            e9e2bc6dfc02b838fb6f951c2748784f

            SHA1

            edfa0154e92a69c77075cf8293231d642451bc50

            SHA256

            a859aeb70ca0d579a9b4f5b19ab9192f2c039d9bbfbaab7fffcbf9776bb7ae12

            SHA512

            d0d3ff65b0434a2924a13cfffaed35ba24a565179bb08a3cd931f22a3c955fc10d8fa54109f56354b46e6a31cc3e9b48971dfe71bb08fc8e8bd847a62348df10

          • \Windows\SysWOW64\netupdsrv.exe

            Filesize

            159KB

            MD5

            f9e534f44d350b25cbdfe073a0dd2a20

            SHA1

            bc8fd68a0aa6770d06699a976f1fc5a35a7840ff

            SHA256

            3580cfe86b6286295f36cb61413b1e2f48d7af96ec41d88a21133144a5c226c6

            SHA512

            363ba771d88c1d47b150786c054c0a0465a766157836ed3fcadbde2a21a552c2e870c6c8dc9ee6a7e68115108c8ef3d005a1125c440f82a1beff9bb8a6324304

          • memory/300-76-0x0000000000000000-mapping.dmp

          • memory/520-54-0x0000000075CF1000-0x0000000075CF3000-memory.dmp

            Filesize

            8KB

          • memory/520-91-0x0000000000360000-0x00000000007BE000-memory.dmp

            Filesize

            4.4MB

          • memory/520-55-0x0000000000360000-0x00000000007BE000-memory.dmp

            Filesize

            4.4MB

          • memory/520-85-0x0000000000360000-0x00000000007BE000-memory.dmp

            Filesize

            4.4MB

          • memory/744-59-0x0000000000000000-mapping.dmp

          • memory/1152-58-0x0000000000000000-mapping.dmp

          • memory/1272-87-0x0000000000000000-mapping.dmp

          • memory/1364-70-0x0000000000000000-mapping.dmp

          • memory/1488-88-0x0000000000000000-mapping.dmp

          • memory/1740-62-0x0000000000000000-mapping.dmp

          • memory/1764-61-0x0000000000000000-mapping.dmp

          • memory/1800-64-0x0000000000000000-mapping.dmp

          • memory/1932-80-0x0000000000000000-mapping.dmp

          • memory/2044-81-0x0000000000000000-mapping.dmp