Analysis

  • max time kernel
    46s
  • max time network
    51s
  • platform
    windows7_x64
  • resource
    win7-20220901-en
  • resource tags

    arch:x64arch:x86image:win7-20220901-enlocale:en-usos:windows7-x64system
  • submitted
    23-11-2022 10:14

General

  • Target

    bd2bad1129fa3839e7ff40d0d541dcd99044638fe879ef33b2507dd069953b06.exe

  • Size

    603KB

  • MD5

    b1250a08b276c44e29bb4f6f395109e2

  • SHA1

    bb5542f39ade0cb780027258da65cfd3320db88e

  • SHA256

    bd2bad1129fa3839e7ff40d0d541dcd99044638fe879ef33b2507dd069953b06

  • SHA512

    75c1f7d2554b3ba994856d956bb04760a2d1c6a4468132cf0d3d95db1a80c38526286249436bf496d41429a81b3866303e26804f02193d4bb3d68ca43a6ac37b

  • SSDEEP

    12288:NIny5DYTBdjOS32SZ5dltMe76285LYGw34ThRDgv:ZUTBdj1dZ5dbMe79wLYGw3h

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\bd2bad1129fa3839e7ff40d0d541dcd99044638fe879ef33b2507dd069953b06.exe
    "C:\Users\Admin\AppData\Local\Temp\bd2bad1129fa3839e7ff40d0d541dcd99044638fe879ef33b2507dd069953b06.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:1308
    • C:\Windows\SysWOW64\net.exe
      net stop nethttpservice
      2⤵
      • Suspicious use of WriteProcessMemory
      PID:1204
      • C:\Windows\SysWOW64\net1.exe
        C:\Windows\system32\net1 stop nethttpservice
        3⤵
          PID:1560
      • C:\Windows\SysWOW64\net.exe
        net stop serviceupdater
        2⤵
        • Suspicious use of WriteProcessMemory
        PID:1964
        • C:\Windows\SysWOW64\net1.exe
          C:\Windows\system32\net1 stop serviceupdater
          3⤵
            PID:760
        • C:\Windows\SysWOW64\installd.exe
          "C:\Windows\system32\installd.exe" nethfdrv
          2⤵
          • Executes dropped EXE
          • Loads dropped DLL
          PID:688
        • C:\Windows\SysWOW64\nethtsrv.exe
          "C:\Windows\system32\nethtsrv.exe" -nfdi
          2⤵
          • Executes dropped EXE
          • Loads dropped DLL
          PID:896
        • C:\Windows\SysWOW64\netupdsrv.exe
          "C:\Windows\system32\netupdsrv.exe" -nfdi
          2⤵
          • Executes dropped EXE
          PID:1576
        • C:\Windows\SysWOW64\net.exe
          net start nethttpservice
          2⤵
          • Suspicious use of WriteProcessMemory
          PID:864
          • C:\Windows\SysWOW64\net1.exe
            C:\Windows\system32\net1 start nethttpservice
            3⤵
              PID:1532
          • C:\Windows\SysWOW64\net.exe
            net start serviceupdater
            2⤵
            • Suspicious use of WriteProcessMemory
            PID:1724
            • C:\Windows\SysWOW64\net1.exe
              C:\Windows\system32\net1 start serviceupdater
              3⤵
                PID:1016
          • C:\Windows\SysWOW64\nethtsrv.exe
            C:\Windows\SysWOW64\nethtsrv.exe
            1⤵
            • Executes dropped EXE
            • Loads dropped DLL
            • Suspicious use of AdjustPrivilegeToken
            PID:1108
          • C:\Windows\SysWOW64\netupdsrv.exe
            C:\Windows\SysWOW64\netupdsrv.exe
            1⤵
            • Executes dropped EXE
            PID:1292

          Network

          MITRE ATT&CK Enterprise v6

          Replay Monitor

          Loading Replay Monitor...

          Downloads

          • C:\Windows\SysWOW64\hfnapi.dll

            Filesize

            106KB

            MD5

            575d4928d102f02bf0db6d603c4baa3d

            SHA1

            e72fa71c5fb7f9166b175b227e589526af1698c8

            SHA256

            15768dc951667ae1b745a8c2de185f6e4901123d2677f9afc1c1713449de017a

            SHA512

            4995ca3dbaf988735aea6de9383e18002a27e44c24dfecf9e5f219385f55d845cf5e309d332bd4be06ac36b96e55331aa19430e88bfd99c7ee877f707fe7ad40

          • C:\Windows\SysWOW64\hfpapi.dll

            Filesize

            244KB

            MD5

            177d94634544922ab64583438c45f8c7

            SHA1

            496c8924fd8e892543176297da5a27921349e9d3

            SHA256

            6f53e7ef014465a809f387335f1c38327a43895661bca5ab7ef563272f1cbd28

            SHA512

            01f5ac18987f9d3c9e85a3c8b5402f8d37b7b0fd6cb2929d2df0d4609a4a5a58bbd5c61dbfc7c1153760c0d6da68573f66e9cd09c2f4b9dc7fdfc542d2b8ffc3

          • C:\Windows\SysWOW64\installd.exe

            Filesize

            108KB

            MD5

            def66519d9530a2fb4b4ce8b87b2bab4

            SHA1

            e077e5643963c4aa0e3568104d8fa6734c1addc0

            SHA256

            0329d593680d9b776d6243f09b079050dc1255379e1a2f8aa809c5db618e67e0

            SHA512

            b59b8e1fcc37176f2f2a647434702f29984fea28de483b0b61a02f71bf8c73117fa97d8c3a2d68ad639c73bc1f89a4da7da660909220a50f802ad4410d6b3297

          • C:\Windows\SysWOW64\nethtsrv.exe

            Filesize

            176KB

            MD5

            adbfcfcbc29f4b2bb5ba124c81ce85a1

            SHA1

            517a8f350d2efa1cf5de69e7c2c9593482e45a9f

            SHA256

            5d79611a5e53a7ef7749f20915b6672262c9bab36bec485bd6e4a18b3138d077

            SHA512

            8844867b6a38d5625e5b67fdc0b29f7b788ac3daf6f8a1a9dace6de273cf83f417f4ee448eafc08d6d510b5b01125af5a83ff3fd244c37b73346956d512a96e5

          • C:\Windows\SysWOW64\nethtsrv.exe

            Filesize

            176KB

            MD5

            adbfcfcbc29f4b2bb5ba124c81ce85a1

            SHA1

            517a8f350d2efa1cf5de69e7c2c9593482e45a9f

            SHA256

            5d79611a5e53a7ef7749f20915b6672262c9bab36bec485bd6e4a18b3138d077

            SHA512

            8844867b6a38d5625e5b67fdc0b29f7b788ac3daf6f8a1a9dace6de273cf83f417f4ee448eafc08d6d510b5b01125af5a83ff3fd244c37b73346956d512a96e5

          • C:\Windows\SysWOW64\netupdsrv.exe

            Filesize

            158KB

            MD5

            2839240d21ca4dc76811ee23d8559f47

            SHA1

            3e309bb0ff0f9330e2e7fd5d0519f7e5560a40d0

            SHA256

            e7d624b5748df26596a6579897b5418558210ba234c622d745f9b9e259d08e49

            SHA512

            979bae16adcca707a1798a4e4cac183d625d7322646b0f21742214db7297257a902e4e415c2f22b71261e86c23eb37a9ca5827bc7c3db8a7cbf48ae860199ca2

          • C:\Windows\SysWOW64\netupdsrv.exe

            Filesize

            158KB

            MD5

            2839240d21ca4dc76811ee23d8559f47

            SHA1

            3e309bb0ff0f9330e2e7fd5d0519f7e5560a40d0

            SHA256

            e7d624b5748df26596a6579897b5418558210ba234c622d745f9b9e259d08e49

            SHA512

            979bae16adcca707a1798a4e4cac183d625d7322646b0f21742214db7297257a902e4e415c2f22b71261e86c23eb37a9ca5827bc7c3db8a7cbf48ae860199ca2

          • \Users\Admin\AppData\Local\Temp\nsd7FF.tmp\System.dll

            Filesize

            11KB

            MD5

            c17103ae9072a06da581dec998343fc1

            SHA1

            b72148c6bdfaada8b8c3f950e610ee7cf1da1f8d

            SHA256

            dc58d8ad81cacb0c1ed72e33bff8f23ea40b5252b5bb55d393a0903e6819ae2f

            SHA512

            d32a71aaef18e993f28096d536e41c4d016850721b31171513ce28bbd805a54fd290b7c3e9d935f72e676a1acfb4f0dcc89d95040a0dd29f2b6975855c18986f

          • \Users\Admin\AppData\Local\Temp\nsd7FF.tmp\nsExec.dll

            Filesize

            6KB

            MD5

            acc2b699edfea5bf5aae45aba3a41e96

            SHA1

            d2accf4d494e43ceb2cff69abe4dd17147d29cc2

            SHA256

            168a974eaa3f588d759db3f47c1a9fdc3494ba1fa1a73a84e5e3b2a4d58abd7e

            SHA512

            e29ea10ada98c71a18273b04f44f385b120d4e8473e441ce5748cfa44a23648814f2656f429b85440157988c88de776c6ac008dc38bf09cbb746c230a46c69fe

          • \Users\Admin\AppData\Local\Temp\nsd7FF.tmp\nsExec.dll

            Filesize

            6KB

            MD5

            acc2b699edfea5bf5aae45aba3a41e96

            SHA1

            d2accf4d494e43ceb2cff69abe4dd17147d29cc2

            SHA256

            168a974eaa3f588d759db3f47c1a9fdc3494ba1fa1a73a84e5e3b2a4d58abd7e

            SHA512

            e29ea10ada98c71a18273b04f44f385b120d4e8473e441ce5748cfa44a23648814f2656f429b85440157988c88de776c6ac008dc38bf09cbb746c230a46c69fe

          • \Users\Admin\AppData\Local\Temp\nsd7FF.tmp\nsExec.dll

            Filesize

            6KB

            MD5

            acc2b699edfea5bf5aae45aba3a41e96

            SHA1

            d2accf4d494e43ceb2cff69abe4dd17147d29cc2

            SHA256

            168a974eaa3f588d759db3f47c1a9fdc3494ba1fa1a73a84e5e3b2a4d58abd7e

            SHA512

            e29ea10ada98c71a18273b04f44f385b120d4e8473e441ce5748cfa44a23648814f2656f429b85440157988c88de776c6ac008dc38bf09cbb746c230a46c69fe

          • \Users\Admin\AppData\Local\Temp\nsd7FF.tmp\nsExec.dll

            Filesize

            6KB

            MD5

            acc2b699edfea5bf5aae45aba3a41e96

            SHA1

            d2accf4d494e43ceb2cff69abe4dd17147d29cc2

            SHA256

            168a974eaa3f588d759db3f47c1a9fdc3494ba1fa1a73a84e5e3b2a4d58abd7e

            SHA512

            e29ea10ada98c71a18273b04f44f385b120d4e8473e441ce5748cfa44a23648814f2656f429b85440157988c88de776c6ac008dc38bf09cbb746c230a46c69fe

          • \Windows\SysWOW64\hfnapi.dll

            Filesize

            106KB

            MD5

            575d4928d102f02bf0db6d603c4baa3d

            SHA1

            e72fa71c5fb7f9166b175b227e589526af1698c8

            SHA256

            15768dc951667ae1b745a8c2de185f6e4901123d2677f9afc1c1713449de017a

            SHA512

            4995ca3dbaf988735aea6de9383e18002a27e44c24dfecf9e5f219385f55d845cf5e309d332bd4be06ac36b96e55331aa19430e88bfd99c7ee877f707fe7ad40

          • \Windows\SysWOW64\hfnapi.dll

            Filesize

            106KB

            MD5

            575d4928d102f02bf0db6d603c4baa3d

            SHA1

            e72fa71c5fb7f9166b175b227e589526af1698c8

            SHA256

            15768dc951667ae1b745a8c2de185f6e4901123d2677f9afc1c1713449de017a

            SHA512

            4995ca3dbaf988735aea6de9383e18002a27e44c24dfecf9e5f219385f55d845cf5e309d332bd4be06ac36b96e55331aa19430e88bfd99c7ee877f707fe7ad40

          • \Windows\SysWOW64\hfnapi.dll

            Filesize

            106KB

            MD5

            575d4928d102f02bf0db6d603c4baa3d

            SHA1

            e72fa71c5fb7f9166b175b227e589526af1698c8

            SHA256

            15768dc951667ae1b745a8c2de185f6e4901123d2677f9afc1c1713449de017a

            SHA512

            4995ca3dbaf988735aea6de9383e18002a27e44c24dfecf9e5f219385f55d845cf5e309d332bd4be06ac36b96e55331aa19430e88bfd99c7ee877f707fe7ad40

          • \Windows\SysWOW64\hfpapi.dll

            Filesize

            244KB

            MD5

            177d94634544922ab64583438c45f8c7

            SHA1

            496c8924fd8e892543176297da5a27921349e9d3

            SHA256

            6f53e7ef014465a809f387335f1c38327a43895661bca5ab7ef563272f1cbd28

            SHA512

            01f5ac18987f9d3c9e85a3c8b5402f8d37b7b0fd6cb2929d2df0d4609a4a5a58bbd5c61dbfc7c1153760c0d6da68573f66e9cd09c2f4b9dc7fdfc542d2b8ffc3

          • \Windows\SysWOW64\hfpapi.dll

            Filesize

            244KB

            MD5

            177d94634544922ab64583438c45f8c7

            SHA1

            496c8924fd8e892543176297da5a27921349e9d3

            SHA256

            6f53e7ef014465a809f387335f1c38327a43895661bca5ab7ef563272f1cbd28

            SHA512

            01f5ac18987f9d3c9e85a3c8b5402f8d37b7b0fd6cb2929d2df0d4609a4a5a58bbd5c61dbfc7c1153760c0d6da68573f66e9cd09c2f4b9dc7fdfc542d2b8ffc3

          • \Windows\SysWOW64\installd.exe

            Filesize

            108KB

            MD5

            def66519d9530a2fb4b4ce8b87b2bab4

            SHA1

            e077e5643963c4aa0e3568104d8fa6734c1addc0

            SHA256

            0329d593680d9b776d6243f09b079050dc1255379e1a2f8aa809c5db618e67e0

            SHA512

            b59b8e1fcc37176f2f2a647434702f29984fea28de483b0b61a02f71bf8c73117fa97d8c3a2d68ad639c73bc1f89a4da7da660909220a50f802ad4410d6b3297

          • \Windows\SysWOW64\nethtsrv.exe

            Filesize

            176KB

            MD5

            adbfcfcbc29f4b2bb5ba124c81ce85a1

            SHA1

            517a8f350d2efa1cf5de69e7c2c9593482e45a9f

            SHA256

            5d79611a5e53a7ef7749f20915b6672262c9bab36bec485bd6e4a18b3138d077

            SHA512

            8844867b6a38d5625e5b67fdc0b29f7b788ac3daf6f8a1a9dace6de273cf83f417f4ee448eafc08d6d510b5b01125af5a83ff3fd244c37b73346956d512a96e5

          • \Windows\SysWOW64\netupdsrv.exe

            Filesize

            158KB

            MD5

            2839240d21ca4dc76811ee23d8559f47

            SHA1

            3e309bb0ff0f9330e2e7fd5d0519f7e5560a40d0

            SHA256

            e7d624b5748df26596a6579897b5418558210ba234c622d745f9b9e259d08e49

            SHA512

            979bae16adcca707a1798a4e4cac183d625d7322646b0f21742214db7297257a902e4e415c2f22b71261e86c23eb37a9ca5827bc7c3db8a7cbf48ae860199ca2

          • memory/688-64-0x0000000000000000-mapping.dmp

          • memory/760-62-0x0000000000000000-mapping.dmp

          • memory/864-80-0x0000000000000000-mapping.dmp

          • memory/896-70-0x0000000000000000-mapping.dmp

          • memory/1016-87-0x0000000000000000-mapping.dmp

          • memory/1204-57-0x0000000000000000-mapping.dmp

          • memory/1308-54-0x0000000074DA1000-0x0000000074DA3000-memory.dmp

            Filesize

            8KB

          • memory/1308-59-0x0000000000360000-0x00000000007BE000-memory.dmp

            Filesize

            4.4MB

          • memory/1308-90-0x0000000000360000-0x00000000007BE000-memory.dmp

            Filesize

            4.4MB

          • memory/1532-81-0x0000000000000000-mapping.dmp

          • memory/1560-58-0x0000000000000000-mapping.dmp

          • memory/1576-76-0x0000000000000000-mapping.dmp

          • memory/1724-86-0x0000000000000000-mapping.dmp

          • memory/1964-61-0x0000000000000000-mapping.dmp