Analysis

  • max time kernel
    205s
  • max time network
    228s
  • 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 10:19

General

  • Target

    942f7ab2737a904daaf8b0fa7220396a4dbd2e69bab4b2703815bf8d9f0ce836.exe

  • Size

    601KB

  • MD5

    469bd198b3be64e6dce6b5687fa55d7a

  • SHA1

    d78d1133f214cd3cdfd6409ac1fef352f5245409

  • SHA256

    942f7ab2737a904daaf8b0fa7220396a4dbd2e69bab4b2703815bf8d9f0ce836

  • SHA512

    8852b0bc9c71266bee792f73d3702e713ecae294ed5ea41acd1a6166c0118c4e80df5373c95ee851de566327358336526d8eb98a35cb7d4d5bf63484cf028f59

  • SSDEEP

    12288:aIny5DYTDGuKEU93SEMS1ecA65MkAOSbOUXqHu4CvxHGAl1OPRo:8UTDDKEU93SEtecXpAZ1uCvFl1i

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\942f7ab2737a904daaf8b0fa7220396a4dbd2e69bab4b2703815bf8d9f0ce836.exe
    "C:\Users\Admin\AppData\Local\Temp\942f7ab2737a904daaf8b0fa7220396a4dbd2e69bab4b2703815bf8d9f0ce836.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:3060
    • C:\Windows\SysWOW64\net.exe
      net stop nethttpservice
      2⤵
      • Suspicious use of WriteProcessMemory
      PID:532
      • C:\Windows\SysWOW64\net1.exe
        C:\Windows\system32\net1 stop nethttpservice
        3⤵
          PID:4084
      • C:\Windows\SysWOW64\net.exe
        net stop serviceupdater
        2⤵
        • Suspicious use of WriteProcessMemory
        PID:2088
        • C:\Windows\SysWOW64\net1.exe
          C:\Windows\system32\net1 stop serviceupdater
          3⤵
            PID:4768
        • C:\Windows\SysWOW64\installd.exe
          "C:\Windows\system32\installd.exe" nethfdrv
          2⤵
          • Executes dropped EXE
          • Loads dropped DLL
          PID:1296
        • C:\Windows\SysWOW64\nethtsrv.exe
          "C:\Windows\system32\nethtsrv.exe" -nfdi
          2⤵
          • Executes dropped EXE
          • Loads dropped DLL
          PID:1824
        • C:\Windows\SysWOW64\netupdsrv.exe
          "C:\Windows\system32\netupdsrv.exe" -nfdi
          2⤵
          • Executes dropped EXE
          PID:3400
        • C:\Windows\SysWOW64\net.exe
          net start nethttpservice
          2⤵
          • Suspicious use of WriteProcessMemory
          PID:1748
          • C:\Windows\SysWOW64\net1.exe
            C:\Windows\system32\net1 start nethttpservice
            3⤵
              PID:3584
          • C:\Windows\SysWOW64\net.exe
            net start serviceupdater
            2⤵
            • Suspicious use of WriteProcessMemory
            PID:2244
            • C:\Windows\SysWOW64\net1.exe
              C:\Windows\system32\net1 start serviceupdater
              3⤵
                PID:4920
          • 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:3052
          • C:\Windows\SysWOW64\netupdsrv.exe
            C:\Windows\SysWOW64\netupdsrv.exe
            1⤵
            • Executes dropped EXE
            PID:1728

          Network

          MITRE ATT&CK Enterprise v6

          Replay Monitor

          Loading Replay Monitor...

          Downloads

          • C:\Users\Admin\AppData\Local\Temp\nsoC1BC.tmp\System.dll

            Filesize

            11KB

            MD5

            c17103ae9072a06da581dec998343fc1

            SHA1

            b72148c6bdfaada8b8c3f950e610ee7cf1da1f8d

            SHA256

            dc58d8ad81cacb0c1ed72e33bff8f23ea40b5252b5bb55d393a0903e6819ae2f

            SHA512

            d32a71aaef18e993f28096d536e41c4d016850721b31171513ce28bbd805a54fd290b7c3e9d935f72e676a1acfb4f0dcc89d95040a0dd29f2b6975855c18986f

          • C:\Users\Admin\AppData\Local\Temp\nsoC1BC.tmp\nsExec.dll

            Filesize

            6KB

            MD5

            acc2b699edfea5bf5aae45aba3a41e96

            SHA1

            d2accf4d494e43ceb2cff69abe4dd17147d29cc2

            SHA256

            168a974eaa3f588d759db3f47c1a9fdc3494ba1fa1a73a84e5e3b2a4d58abd7e

            SHA512

            e29ea10ada98c71a18273b04f44f385b120d4e8473e441ce5748cfa44a23648814f2656f429b85440157988c88de776c6ac008dc38bf09cbb746c230a46c69fe

          • C:\Users\Admin\AppData\Local\Temp\nsoC1BC.tmp\nsExec.dll

            Filesize

            6KB

            MD5

            acc2b699edfea5bf5aae45aba3a41e96

            SHA1

            d2accf4d494e43ceb2cff69abe4dd17147d29cc2

            SHA256

            168a974eaa3f588d759db3f47c1a9fdc3494ba1fa1a73a84e5e3b2a4d58abd7e

            SHA512

            e29ea10ada98c71a18273b04f44f385b120d4e8473e441ce5748cfa44a23648814f2656f429b85440157988c88de776c6ac008dc38bf09cbb746c230a46c69fe

          • C:\Users\Admin\AppData\Local\Temp\nsoC1BC.tmp\nsExec.dll

            Filesize

            6KB

            MD5

            acc2b699edfea5bf5aae45aba3a41e96

            SHA1

            d2accf4d494e43ceb2cff69abe4dd17147d29cc2

            SHA256

            168a974eaa3f588d759db3f47c1a9fdc3494ba1fa1a73a84e5e3b2a4d58abd7e

            SHA512

            e29ea10ada98c71a18273b04f44f385b120d4e8473e441ce5748cfa44a23648814f2656f429b85440157988c88de776c6ac008dc38bf09cbb746c230a46c69fe

          • C:\Users\Admin\AppData\Local\Temp\nsoC1BC.tmp\nsExec.dll

            Filesize

            6KB

            MD5

            acc2b699edfea5bf5aae45aba3a41e96

            SHA1

            d2accf4d494e43ceb2cff69abe4dd17147d29cc2

            SHA256

            168a974eaa3f588d759db3f47c1a9fdc3494ba1fa1a73a84e5e3b2a4d58abd7e

            SHA512

            e29ea10ada98c71a18273b04f44f385b120d4e8473e441ce5748cfa44a23648814f2656f429b85440157988c88de776c6ac008dc38bf09cbb746c230a46c69fe

          • C:\Users\Admin\AppData\Local\Temp\nsoC1BC.tmp\nsExec.dll

            Filesize

            6KB

            MD5

            acc2b699edfea5bf5aae45aba3a41e96

            SHA1

            d2accf4d494e43ceb2cff69abe4dd17147d29cc2

            SHA256

            168a974eaa3f588d759db3f47c1a9fdc3494ba1fa1a73a84e5e3b2a4d58abd7e

            SHA512

            e29ea10ada98c71a18273b04f44f385b120d4e8473e441ce5748cfa44a23648814f2656f429b85440157988c88de776c6ac008dc38bf09cbb746c230a46c69fe

          • C:\Users\Admin\AppData\Local\Temp\nsoC1BC.tmp\nsExec.dll

            Filesize

            6KB

            MD5

            acc2b699edfea5bf5aae45aba3a41e96

            SHA1

            d2accf4d494e43ceb2cff69abe4dd17147d29cc2

            SHA256

            168a974eaa3f588d759db3f47c1a9fdc3494ba1fa1a73a84e5e3b2a4d58abd7e

            SHA512

            e29ea10ada98c71a18273b04f44f385b120d4e8473e441ce5748cfa44a23648814f2656f429b85440157988c88de776c6ac008dc38bf09cbb746c230a46c69fe

          • C:\Users\Admin\AppData\Local\Temp\nsoC1BC.tmp\nsExec.dll

            Filesize

            6KB

            MD5

            acc2b699edfea5bf5aae45aba3a41e96

            SHA1

            d2accf4d494e43ceb2cff69abe4dd17147d29cc2

            SHA256

            168a974eaa3f588d759db3f47c1a9fdc3494ba1fa1a73a84e5e3b2a4d58abd7e

            SHA512

            e29ea10ada98c71a18273b04f44f385b120d4e8473e441ce5748cfa44a23648814f2656f429b85440157988c88de776c6ac008dc38bf09cbb746c230a46c69fe

          • C:\Users\Admin\AppData\Local\Temp\nsoC1BC.tmp\nsExec.dll

            Filesize

            6KB

            MD5

            acc2b699edfea5bf5aae45aba3a41e96

            SHA1

            d2accf4d494e43ceb2cff69abe4dd17147d29cc2

            SHA256

            168a974eaa3f588d759db3f47c1a9fdc3494ba1fa1a73a84e5e3b2a4d58abd7e

            SHA512

            e29ea10ada98c71a18273b04f44f385b120d4e8473e441ce5748cfa44a23648814f2656f429b85440157988c88de776c6ac008dc38bf09cbb746c230a46c69fe

          • C:\Windows\SysWOW64\hfnapi.dll

            Filesize

            106KB

            MD5

            cd4a12c39d6a432c78c948db02be3f23

            SHA1

            e778990d0578e4efabee8ab4dd1e81a6cbe686c8

            SHA256

            bef01d7c2fac7a4dc4efeaad1689c8be63b658fdbf60b948835437bdc28f4dc9

            SHA512

            cc9bcaaf6eab31064c434bef9c3d3a761ff2bdf1e96e20128bd681b33de5d4fcb2328e20aef5376aebd46b66484180a828896ddbb43170fdcc2fc94cb6e24890

          • C:\Windows\SysWOW64\hfnapi.dll

            Filesize

            106KB

            MD5

            cd4a12c39d6a432c78c948db02be3f23

            SHA1

            e778990d0578e4efabee8ab4dd1e81a6cbe686c8

            SHA256

            bef01d7c2fac7a4dc4efeaad1689c8be63b658fdbf60b948835437bdc28f4dc9

            SHA512

            cc9bcaaf6eab31064c434bef9c3d3a761ff2bdf1e96e20128bd681b33de5d4fcb2328e20aef5376aebd46b66484180a828896ddbb43170fdcc2fc94cb6e24890

          • C:\Windows\SysWOW64\hfnapi.dll

            Filesize

            106KB

            MD5

            cd4a12c39d6a432c78c948db02be3f23

            SHA1

            e778990d0578e4efabee8ab4dd1e81a6cbe686c8

            SHA256

            bef01d7c2fac7a4dc4efeaad1689c8be63b658fdbf60b948835437bdc28f4dc9

            SHA512

            cc9bcaaf6eab31064c434bef9c3d3a761ff2bdf1e96e20128bd681b33de5d4fcb2328e20aef5376aebd46b66484180a828896ddbb43170fdcc2fc94cb6e24890

          • C:\Windows\SysWOW64\hfnapi.dll

            Filesize

            106KB

            MD5

            cd4a12c39d6a432c78c948db02be3f23

            SHA1

            e778990d0578e4efabee8ab4dd1e81a6cbe686c8

            SHA256

            bef01d7c2fac7a4dc4efeaad1689c8be63b658fdbf60b948835437bdc28f4dc9

            SHA512

            cc9bcaaf6eab31064c434bef9c3d3a761ff2bdf1e96e20128bd681b33de5d4fcb2328e20aef5376aebd46b66484180a828896ddbb43170fdcc2fc94cb6e24890

          • C:\Windows\SysWOW64\hfpapi.dll

            Filesize

            241KB

            MD5

            db50ff7fd934176e8b21250650a422cf

            SHA1

            4af5cc2d4e86ed54ae7948b053e73090ca28c630

            SHA256

            53ffdbe71f9dd4985dfb6db0f3d857e5869dc4cccac73377cb12880f9a12555d

            SHA512

            4564f0c8e78093ce159ab5d80df8c606621bd92cd30f7b0d11af1c73f27678c9431ef7ad82b11f3bffa1e6072f985fe1f9d4da142d1aa7e7a0d80e39b49961f5

          • C:\Windows\SysWOW64\hfpapi.dll

            Filesize

            241KB

            MD5

            db50ff7fd934176e8b21250650a422cf

            SHA1

            4af5cc2d4e86ed54ae7948b053e73090ca28c630

            SHA256

            53ffdbe71f9dd4985dfb6db0f3d857e5869dc4cccac73377cb12880f9a12555d

            SHA512

            4564f0c8e78093ce159ab5d80df8c606621bd92cd30f7b0d11af1c73f27678c9431ef7ad82b11f3bffa1e6072f985fe1f9d4da142d1aa7e7a0d80e39b49961f5

          • C:\Windows\SysWOW64\hfpapi.dll

            Filesize

            241KB

            MD5

            db50ff7fd934176e8b21250650a422cf

            SHA1

            4af5cc2d4e86ed54ae7948b053e73090ca28c630

            SHA256

            53ffdbe71f9dd4985dfb6db0f3d857e5869dc4cccac73377cb12880f9a12555d

            SHA512

            4564f0c8e78093ce159ab5d80df8c606621bd92cd30f7b0d11af1c73f27678c9431ef7ad82b11f3bffa1e6072f985fe1f9d4da142d1aa7e7a0d80e39b49961f5

          • C:\Windows\SysWOW64\installd.exe

            Filesize

            108KB

            MD5

            a1c2a4cbd2aeba03ddadfc21b04249ad

            SHA1

            5a8510730aef8bafcdbc00fa1a98e13c6490c3d2

            SHA256

            f1014c7d29881aa5e54453c835de82584aacdaa60a4fdb58159fe1376671e56b

            SHA512

            d9ac11a74f51b6c56521546ef77e88e42533b03369028aef6ec752383e0d3da8373cddad12d6e540cfbc92dd2a31bff4a50f059a362d9b87a3c3d706c3cf138b

          • C:\Windows\SysWOW64\installd.exe

            Filesize

            108KB

            MD5

            a1c2a4cbd2aeba03ddadfc21b04249ad

            SHA1

            5a8510730aef8bafcdbc00fa1a98e13c6490c3d2

            SHA256

            f1014c7d29881aa5e54453c835de82584aacdaa60a4fdb58159fe1376671e56b

            SHA512

            d9ac11a74f51b6c56521546ef77e88e42533b03369028aef6ec752383e0d3da8373cddad12d6e540cfbc92dd2a31bff4a50f059a362d9b87a3c3d706c3cf138b

          • C:\Windows\SysWOW64\nethtsrv.exe

            Filesize

            176KB

            MD5

            48a3bfaba2e20d905b2cb9ac6774fcc9

            SHA1

            dc68f456a2bc21fd20788dac81ffc1a4629b9c54

            SHA256

            5fdd91a54194c21d7d42cda3099c254ffd739688a45c6e8066b273c2a6054447

            SHA512

            5b518b97ececc692821e0714312744246bb40f33f833537b7c9b8101f00b55c3148a7a1e9488d3e331eebf33fbf71cc43c1d62d8cef4e87635aeb1e8122fae7d

          • C:\Windows\SysWOW64\nethtsrv.exe

            Filesize

            176KB

            MD5

            48a3bfaba2e20d905b2cb9ac6774fcc9

            SHA1

            dc68f456a2bc21fd20788dac81ffc1a4629b9c54

            SHA256

            5fdd91a54194c21d7d42cda3099c254ffd739688a45c6e8066b273c2a6054447

            SHA512

            5b518b97ececc692821e0714312744246bb40f33f833537b7c9b8101f00b55c3148a7a1e9488d3e331eebf33fbf71cc43c1d62d8cef4e87635aeb1e8122fae7d

          • C:\Windows\SysWOW64\nethtsrv.exe

            Filesize

            176KB

            MD5

            48a3bfaba2e20d905b2cb9ac6774fcc9

            SHA1

            dc68f456a2bc21fd20788dac81ffc1a4629b9c54

            SHA256

            5fdd91a54194c21d7d42cda3099c254ffd739688a45c6e8066b273c2a6054447

            SHA512

            5b518b97ececc692821e0714312744246bb40f33f833537b7c9b8101f00b55c3148a7a1e9488d3e331eebf33fbf71cc43c1d62d8cef4e87635aeb1e8122fae7d

          • C:\Windows\SysWOW64\netupdsrv.exe

            Filesize

            159KB

            MD5

            86816de1b14ad3731f92821dd8e59cfa

            SHA1

            6917040e19cdab105255fb1bbec9695bcc194f5d

            SHA256

            9928c09fafcffbf9d28e467a42df94e499bf904b94e7ddac1b0d98a502bd83ad

            SHA512

            190beb09fdf72778fb0a658e5e49fadc6ba1791778fb75482b2a0080281a2ce40ad7a480a8d220bc6ae87a490938fcca102cde838cce2ca211f5eb91ebc7f260

          • C:\Windows\SysWOW64\netupdsrv.exe

            Filesize

            159KB

            MD5

            86816de1b14ad3731f92821dd8e59cfa

            SHA1

            6917040e19cdab105255fb1bbec9695bcc194f5d

            SHA256

            9928c09fafcffbf9d28e467a42df94e499bf904b94e7ddac1b0d98a502bd83ad

            SHA512

            190beb09fdf72778fb0a658e5e49fadc6ba1791778fb75482b2a0080281a2ce40ad7a480a8d220bc6ae87a490938fcca102cde838cce2ca211f5eb91ebc7f260

          • C:\Windows\SysWOW64\netupdsrv.exe

            Filesize

            159KB

            MD5

            86816de1b14ad3731f92821dd8e59cfa

            SHA1

            6917040e19cdab105255fb1bbec9695bcc194f5d

            SHA256

            9928c09fafcffbf9d28e467a42df94e499bf904b94e7ddac1b0d98a502bd83ad

            SHA512

            190beb09fdf72778fb0a658e5e49fadc6ba1791778fb75482b2a0080281a2ce40ad7a480a8d220bc6ae87a490938fcca102cde838cce2ca211f5eb91ebc7f260

          • memory/532-136-0x0000000000000000-mapping.dmp

          • memory/1296-142-0x0000000000000000-mapping.dmp

          • memory/1748-159-0x0000000000000000-mapping.dmp

          • memory/1824-147-0x0000000000000000-mapping.dmp

          • memory/2088-140-0x0000000000000000-mapping.dmp

          • memory/2244-166-0x0000000000000000-mapping.dmp

          • memory/3060-132-0x0000000000360000-0x00000000007BE000-memory.dmp

            Filesize

            4.4MB

          • memory/3060-158-0x0000000000360000-0x00000000007BE000-memory.dmp

            Filesize

            4.4MB

          • memory/3060-169-0x0000000000360000-0x00000000007BE000-memory.dmp

            Filesize

            4.4MB

          • memory/3400-153-0x0000000000000000-mapping.dmp

          • memory/3584-160-0x0000000000000000-mapping.dmp

          • memory/4084-137-0x0000000000000000-mapping.dmp

          • memory/4768-141-0x0000000000000000-mapping.dmp

          • memory/4920-167-0x0000000000000000-mapping.dmp