Analysis

  • max time kernel
    104s
  • max time network
    32s
  • platform
    windows7_x64
  • resource
    win7-20221111-en
  • resource tags

    arch:x64arch:x86image:win7-20221111-enlocale:en-usos:windows7-x64system
  • submitted
    23-11-2022 10:19

General

  • Target

    937cf2af1c660da756867b46cc0981dd14b1589a9e09c477d06e91de5d64f347.exe

  • Size

    603KB

  • MD5

    60a0e68cfcfdec9156ffdc3830412da8

  • SHA1

    85562415c612dde7ff3ca52849c74e9e95d7e685

  • SHA256

    937cf2af1c660da756867b46cc0981dd14b1589a9e09c477d06e91de5d64f347

  • SHA512

    dc94ddf7b2055faf318655dfb73096f21b7a5bcadfa32943d345d575615165c0250b8fcb00ca4aa9db8256abb289ab8bc6d2da3231ab2c7154a97c33d48757ed

  • SSDEEP

    12288:KIny5DYTmIcBVH+IgB2JnrLD5WQXLTAzkwEAtM+CqlGhtIum:MUTmvHHDS2hrLNWi5rq

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\937cf2af1c660da756867b46cc0981dd14b1589a9e09c477d06e91de5d64f347.exe
    "C:\Users\Admin\AppData\Local\Temp\937cf2af1c660da756867b46cc0981dd14b1589a9e09c477d06e91de5d64f347.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:864
    • C:\Windows\SysWOW64\net.exe
      net stop nethttpservice
      2⤵
      • Suspicious use of WriteProcessMemory
      PID:1272
      • C:\Windows\SysWOW64\net1.exe
        C:\Windows\system32\net1 stop nethttpservice
        3⤵
          PID:516
      • C:\Windows\SysWOW64\net.exe
        net stop serviceupdater
        2⤵
        • Suspicious use of WriteProcessMemory
        PID:1704
        • C:\Windows\SysWOW64\net1.exe
          C:\Windows\system32\net1 stop serviceupdater
          3⤵
            PID:1504
        • C:\Windows\SysWOW64\installd.exe
          "C:\Windows\system32\installd.exe" nethfdrv
          2⤵
          • Executes dropped EXE
          • Loads dropped DLL
          PID:1224
        • C:\Windows\SysWOW64\nethtsrv.exe
          "C:\Windows\system32\nethtsrv.exe" -nfdi
          2⤵
          • Executes dropped EXE
          • Loads dropped DLL
          PID:1880
        • C:\Windows\SysWOW64\netupdsrv.exe
          "C:\Windows\system32\netupdsrv.exe" -nfdi
          2⤵
          • Executes dropped EXE
          PID:1944
        • C:\Windows\SysWOW64\net.exe
          net start nethttpservice
          2⤵
          • Suspicious use of WriteProcessMemory
          PID:1392
          • C:\Windows\SysWOW64\net1.exe
            C:\Windows\system32\net1 start nethttpservice
            3⤵
              PID:1332
          • C:\Windows\SysWOW64\net.exe
            net start serviceupdater
            2⤵
            • Suspicious use of WriteProcessMemory
            PID:1840
            • C:\Windows\SysWOW64\net1.exe
              C:\Windows\system32\net1 start serviceupdater
              3⤵
                PID:2044
          • C:\Windows\SysWOW64\nethtsrv.exe
            C:\Windows\SysWOW64\nethtsrv.exe
            1⤵
            • Executes dropped EXE
            • Loads dropped DLL
            • Suspicious use of AdjustPrivilegeToken
            PID:1680
          • C:\Windows\SysWOW64\netupdsrv.exe
            C:\Windows\SysWOW64\netupdsrv.exe
            1⤵
            • Executes dropped EXE
            PID:268

          Network

          MITRE ATT&CK Enterprise v6

          Replay Monitor

          Loading Replay Monitor...

          Downloads

          • C:\Windows\SysWOW64\hfnapi.dll

            Filesize

            106KB

            MD5

            acdbfb7ac916bb0cef0c2fd531e712d7

            SHA1

            987058dd7291603f4bba0636112909baf0e62c9e

            SHA256

            60a474243fd3e830ae558c56746dd61331141bc4faccb0f1cbb12d79881b2c12

            SHA512

            5a801dc9a5ec01a803442f3c7263de6554b88abc17533c4ea175a4ff700337c90271cb8401cd0d17dc81f6e74b72480a3a70e4aa6fd58484224ce307da53c3c7

          • C:\Windows\SysWOW64\hfpapi.dll

            Filesize

            244KB

            MD5

            eca51f860005645989b355b4be97f317

            SHA1

            e4bf6d0e19cee3898b10ca9b15349b548844babc

            SHA256

            de5b301f1ccd1163a634f478ddd201b1c4f4ab3e3c03e2e6a5ce6b2e61edf298

            SHA512

            b28e13c39af587cc961a22e8ef4ce0b64d3ec0cf68bd2ec78164c45132489bc5f42f10d52c702d6ac894117a169e13bb3a1956ab2e51d2729b002a0e7857a58f

          • C:\Windows\SysWOW64\installd.exe

            Filesize

            108KB

            MD5

            b5afb09095598b6af722cf31e2da9db6

            SHA1

            c13c7b72253fb1b7030c95893331ca27bd1b04a0

            SHA256

            7763ab13ef5367685e139493e671a77c134e178f58dd84dd779d8f5835a12ee6

            SHA512

            727844386ce4a99c9560bdf04d94121f5230b9c6dfa5a6c504f4494a25d013f990e4bbea246c67396099a12f4848e98707e569632bfbad644efe6ded8136966f

          • C:\Windows\SysWOW64\nethtsrv.exe

            Filesize

            176KB

            MD5

            a34c4bf9fde122059c875430e0db6ff4

            SHA1

            136194693947c8d69dde8d681f34b77846e43ae3

            SHA256

            4709a810bee9ae86dac5fae1b875bc97f7d0fd12493725342eb982050b8a1d83

            SHA512

            0503d1765164fbe78f37798aed2d6b5d4e398e196323042c29d37f3ce825fae13681fd33e6c6cb89c8d68dd60cf553076aa0bc15175bcc7541ebeb2bf8a77a54

          • C:\Windows\SysWOW64\nethtsrv.exe

            Filesize

            176KB

            MD5

            a34c4bf9fde122059c875430e0db6ff4

            SHA1

            136194693947c8d69dde8d681f34b77846e43ae3

            SHA256

            4709a810bee9ae86dac5fae1b875bc97f7d0fd12493725342eb982050b8a1d83

            SHA512

            0503d1765164fbe78f37798aed2d6b5d4e398e196323042c29d37f3ce825fae13681fd33e6c6cb89c8d68dd60cf553076aa0bc15175bcc7541ebeb2bf8a77a54

          • C:\Windows\SysWOW64\netupdsrv.exe

            Filesize

            159KB

            MD5

            f615da03f6cb46a3c0a11eff7dcf599d

            SHA1

            a063d891948ce6c24fb9032b6d2ca31064bea806

            SHA256

            45d9867e542c7726a8b52d46456dcd5037f19c97dbe5ec56284cf66632efcf90

            SHA512

            def99bfc172346b45322341310f52bb5600deede575379aaa40b16caabe84ee1a40c623d0a473f0690bbe1de6d68d3221e59ca8a576a1db0359d830aeb57ad49

          • C:\Windows\SysWOW64\netupdsrv.exe

            Filesize

            159KB

            MD5

            f615da03f6cb46a3c0a11eff7dcf599d

            SHA1

            a063d891948ce6c24fb9032b6d2ca31064bea806

            SHA256

            45d9867e542c7726a8b52d46456dcd5037f19c97dbe5ec56284cf66632efcf90

            SHA512

            def99bfc172346b45322341310f52bb5600deede575379aaa40b16caabe84ee1a40c623d0a473f0690bbe1de6d68d3221e59ca8a576a1db0359d830aeb57ad49

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

            Filesize

            11KB

            MD5

            c17103ae9072a06da581dec998343fc1

            SHA1

            b72148c6bdfaada8b8c3f950e610ee7cf1da1f8d

            SHA256

            dc58d8ad81cacb0c1ed72e33bff8f23ea40b5252b5bb55d393a0903e6819ae2f

            SHA512

            d32a71aaef18e993f28096d536e41c4d016850721b31171513ce28bbd805a54fd290b7c3e9d935f72e676a1acfb4f0dcc89d95040a0dd29f2b6975855c18986f

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

            Filesize

            6KB

            MD5

            acc2b699edfea5bf5aae45aba3a41e96

            SHA1

            d2accf4d494e43ceb2cff69abe4dd17147d29cc2

            SHA256

            168a974eaa3f588d759db3f47c1a9fdc3494ba1fa1a73a84e5e3b2a4d58abd7e

            SHA512

            e29ea10ada98c71a18273b04f44f385b120d4e8473e441ce5748cfa44a23648814f2656f429b85440157988c88de776c6ac008dc38bf09cbb746c230a46c69fe

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

            Filesize

            6KB

            MD5

            acc2b699edfea5bf5aae45aba3a41e96

            SHA1

            d2accf4d494e43ceb2cff69abe4dd17147d29cc2

            SHA256

            168a974eaa3f588d759db3f47c1a9fdc3494ba1fa1a73a84e5e3b2a4d58abd7e

            SHA512

            e29ea10ada98c71a18273b04f44f385b120d4e8473e441ce5748cfa44a23648814f2656f429b85440157988c88de776c6ac008dc38bf09cbb746c230a46c69fe

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

            Filesize

            6KB

            MD5

            acc2b699edfea5bf5aae45aba3a41e96

            SHA1

            d2accf4d494e43ceb2cff69abe4dd17147d29cc2

            SHA256

            168a974eaa3f588d759db3f47c1a9fdc3494ba1fa1a73a84e5e3b2a4d58abd7e

            SHA512

            e29ea10ada98c71a18273b04f44f385b120d4e8473e441ce5748cfa44a23648814f2656f429b85440157988c88de776c6ac008dc38bf09cbb746c230a46c69fe

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

            Filesize

            6KB

            MD5

            acc2b699edfea5bf5aae45aba3a41e96

            SHA1

            d2accf4d494e43ceb2cff69abe4dd17147d29cc2

            SHA256

            168a974eaa3f588d759db3f47c1a9fdc3494ba1fa1a73a84e5e3b2a4d58abd7e

            SHA512

            e29ea10ada98c71a18273b04f44f385b120d4e8473e441ce5748cfa44a23648814f2656f429b85440157988c88de776c6ac008dc38bf09cbb746c230a46c69fe

          • \Windows\SysWOW64\hfnapi.dll

            Filesize

            106KB

            MD5

            acdbfb7ac916bb0cef0c2fd531e712d7

            SHA1

            987058dd7291603f4bba0636112909baf0e62c9e

            SHA256

            60a474243fd3e830ae558c56746dd61331141bc4faccb0f1cbb12d79881b2c12

            SHA512

            5a801dc9a5ec01a803442f3c7263de6554b88abc17533c4ea175a4ff700337c90271cb8401cd0d17dc81f6e74b72480a3a70e4aa6fd58484224ce307da53c3c7

          • \Windows\SysWOW64\hfnapi.dll

            Filesize

            106KB

            MD5

            acdbfb7ac916bb0cef0c2fd531e712d7

            SHA1

            987058dd7291603f4bba0636112909baf0e62c9e

            SHA256

            60a474243fd3e830ae558c56746dd61331141bc4faccb0f1cbb12d79881b2c12

            SHA512

            5a801dc9a5ec01a803442f3c7263de6554b88abc17533c4ea175a4ff700337c90271cb8401cd0d17dc81f6e74b72480a3a70e4aa6fd58484224ce307da53c3c7

          • \Windows\SysWOW64\hfnapi.dll

            Filesize

            106KB

            MD5

            acdbfb7ac916bb0cef0c2fd531e712d7

            SHA1

            987058dd7291603f4bba0636112909baf0e62c9e

            SHA256

            60a474243fd3e830ae558c56746dd61331141bc4faccb0f1cbb12d79881b2c12

            SHA512

            5a801dc9a5ec01a803442f3c7263de6554b88abc17533c4ea175a4ff700337c90271cb8401cd0d17dc81f6e74b72480a3a70e4aa6fd58484224ce307da53c3c7

          • \Windows\SysWOW64\hfpapi.dll

            Filesize

            244KB

            MD5

            eca51f860005645989b355b4be97f317

            SHA1

            e4bf6d0e19cee3898b10ca9b15349b548844babc

            SHA256

            de5b301f1ccd1163a634f478ddd201b1c4f4ab3e3c03e2e6a5ce6b2e61edf298

            SHA512

            b28e13c39af587cc961a22e8ef4ce0b64d3ec0cf68bd2ec78164c45132489bc5f42f10d52c702d6ac894117a169e13bb3a1956ab2e51d2729b002a0e7857a58f

          • \Windows\SysWOW64\hfpapi.dll

            Filesize

            244KB

            MD5

            eca51f860005645989b355b4be97f317

            SHA1

            e4bf6d0e19cee3898b10ca9b15349b548844babc

            SHA256

            de5b301f1ccd1163a634f478ddd201b1c4f4ab3e3c03e2e6a5ce6b2e61edf298

            SHA512

            b28e13c39af587cc961a22e8ef4ce0b64d3ec0cf68bd2ec78164c45132489bc5f42f10d52c702d6ac894117a169e13bb3a1956ab2e51d2729b002a0e7857a58f

          • \Windows\SysWOW64\installd.exe

            Filesize

            108KB

            MD5

            b5afb09095598b6af722cf31e2da9db6

            SHA1

            c13c7b72253fb1b7030c95893331ca27bd1b04a0

            SHA256

            7763ab13ef5367685e139493e671a77c134e178f58dd84dd779d8f5835a12ee6

            SHA512

            727844386ce4a99c9560bdf04d94121f5230b9c6dfa5a6c504f4494a25d013f990e4bbea246c67396099a12f4848e98707e569632bfbad644efe6ded8136966f

          • \Windows\SysWOW64\nethtsrv.exe

            Filesize

            176KB

            MD5

            a34c4bf9fde122059c875430e0db6ff4

            SHA1

            136194693947c8d69dde8d681f34b77846e43ae3

            SHA256

            4709a810bee9ae86dac5fae1b875bc97f7d0fd12493725342eb982050b8a1d83

            SHA512

            0503d1765164fbe78f37798aed2d6b5d4e398e196323042c29d37f3ce825fae13681fd33e6c6cb89c8d68dd60cf553076aa0bc15175bcc7541ebeb2bf8a77a54

          • \Windows\SysWOW64\netupdsrv.exe

            Filesize

            159KB

            MD5

            f615da03f6cb46a3c0a11eff7dcf599d

            SHA1

            a063d891948ce6c24fb9032b6d2ca31064bea806

            SHA256

            45d9867e542c7726a8b52d46456dcd5037f19c97dbe5ec56284cf66632efcf90

            SHA512

            def99bfc172346b45322341310f52bb5600deede575379aaa40b16caabe84ee1a40c623d0a473f0690bbe1de6d68d3221e59ca8a576a1db0359d830aeb57ad49

          • memory/516-59-0x0000000000000000-mapping.dmp

          • memory/864-91-0x0000000000360000-0x00000000007BE000-memory.dmp

            Filesize

            4.4MB

          • memory/864-69-0x0000000000360000-0x00000000007BE000-memory.dmp

            Filesize

            4.4MB

          • memory/864-54-0x0000000076B51000-0x0000000076B53000-memory.dmp

            Filesize

            8KB

          • memory/864-58-0x0000000000360000-0x00000000007BE000-memory.dmp

            Filesize

            4.4MB

          • memory/1224-64-0x0000000000000000-mapping.dmp

          • memory/1272-57-0x0000000000000000-mapping.dmp

          • memory/1332-82-0x0000000000000000-mapping.dmp

          • memory/1392-81-0x0000000000000000-mapping.dmp

          • memory/1504-62-0x0000000000000000-mapping.dmp

          • memory/1704-61-0x0000000000000000-mapping.dmp

          • memory/1840-87-0x0000000000000000-mapping.dmp

          • memory/1880-71-0x0000000000000000-mapping.dmp

          • memory/1944-77-0x0000000000000000-mapping.dmp

          • memory/2044-88-0x0000000000000000-mapping.dmp