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Analysis

  • max time kernel
    146s
  • max time network
    150s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20221111-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20221111-enlocale:en-usos:windows10-2004-x64system
  • submitted
    22/11/2022, 00:06

General

  • Target

    2f27190900fd6db99628a2c51af38169c5163a621250ce3d15cea71d1e10c7b6.exe

  • Size

    601KB

  • MD5

    b5ab35800fd5e11b6257477de7cbf691

  • SHA1

    61873ab0f8a935f7c672e72b43c1b5c9e7bd977c

  • SHA256

    2f27190900fd6db99628a2c51af38169c5163a621250ce3d15cea71d1e10c7b6

  • SHA512

    2a7a078c334f89225f3362069355dc9726d77ea56a9901271ab47e16d525739e2a531c2dce25be450f8c03f7bb1fa7954ce60166fae93ad05d14bc44603582c7

  • SSDEEP

    12288:7Iny5DYT5IbKAy9uU8X+4z1uGUFIihc+HSC+eQDtN/Ic:DUT5kKz9v8XjzQpOCjEz

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\2f27190900fd6db99628a2c51af38169c5163a621250ce3d15cea71d1e10c7b6.exe
    "C:\Users\Admin\AppData\Local\Temp\2f27190900fd6db99628a2c51af38169c5163a621250ce3d15cea71d1e10c7b6.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:3872
    • C:\Windows\SysWOW64\net.exe
      net stop nethttpservice
      2⤵
      • Suspicious use of WriteProcessMemory
      PID:836
      • C:\Windows\SysWOW64\net1.exe
        C:\Windows\system32\net1 stop nethttpservice
        3⤵
          PID:3428
      • C:\Windows\SysWOW64\net.exe
        net stop serviceupdater
        2⤵
        • Suspicious use of WriteProcessMemory
        PID:5012
        • C:\Windows\SysWOW64\net1.exe
          C:\Windows\system32\net1 stop serviceupdater
          3⤵
            PID:1048
        • C:\Windows\SysWOW64\installd.exe
          "C:\Windows\system32\installd.exe" nethfdrv
          2⤵
          • Executes dropped EXE
          • Loads dropped DLL
          PID:1388
        • C:\Windows\SysWOW64\nethtsrv.exe
          "C:\Windows\system32\nethtsrv.exe" -nfdi
          2⤵
          • Executes dropped EXE
          • Loads dropped DLL
          PID:328
        • C:\Windows\SysWOW64\netupdsrv.exe
          "C:\Windows\system32\netupdsrv.exe" -nfdi
          2⤵
          • Executes dropped EXE
          PID:672
        • C:\Windows\SysWOW64\net.exe
          net start nethttpservice
          2⤵
          • Suspicious use of WriteProcessMemory
          PID:2424
          • C:\Windows\SysWOW64\net1.exe
            C:\Windows\system32\net1 start nethttpservice
            3⤵
              PID:4596
          • C:\Windows\SysWOW64\net.exe
            net start serviceupdater
            2⤵
            • Suspicious use of WriteProcessMemory
            PID:2716
            • C:\Windows\SysWOW64\net1.exe
              C:\Windows\system32\net1 start serviceupdater
              3⤵
                PID:2244
          • 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:4536
          • C:\Windows\SysWOW64\netupdsrv.exe
            C:\Windows\SysWOW64\netupdsrv.exe
            1⤵
            • Executes dropped EXE
            PID:368

          Network

          MITRE ATT&CK Enterprise v6

          Replay Monitor

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          Downloads

          • C:\Users\Admin\AppData\Local\Temp\nsl718D.tmp\System.dll

            Filesize

            11KB

            MD5

            c17103ae9072a06da581dec998343fc1

            SHA1

            b72148c6bdfaada8b8c3f950e610ee7cf1da1f8d

            SHA256

            dc58d8ad81cacb0c1ed72e33bff8f23ea40b5252b5bb55d393a0903e6819ae2f

            SHA512

            d32a71aaef18e993f28096d536e41c4d016850721b31171513ce28bbd805a54fd290b7c3e9d935f72e676a1acfb4f0dcc89d95040a0dd29f2b6975855c18986f

          • C:\Users\Admin\AppData\Local\Temp\nsl718D.tmp\nsExec.dll

            Filesize

            6KB

            MD5

            acc2b699edfea5bf5aae45aba3a41e96

            SHA1

            d2accf4d494e43ceb2cff69abe4dd17147d29cc2

            SHA256

            168a974eaa3f588d759db3f47c1a9fdc3494ba1fa1a73a84e5e3b2a4d58abd7e

            SHA512

            e29ea10ada98c71a18273b04f44f385b120d4e8473e441ce5748cfa44a23648814f2656f429b85440157988c88de776c6ac008dc38bf09cbb746c230a46c69fe

          • C:\Users\Admin\AppData\Local\Temp\nsl718D.tmp\nsExec.dll

            Filesize

            6KB

            MD5

            acc2b699edfea5bf5aae45aba3a41e96

            SHA1

            d2accf4d494e43ceb2cff69abe4dd17147d29cc2

            SHA256

            168a974eaa3f588d759db3f47c1a9fdc3494ba1fa1a73a84e5e3b2a4d58abd7e

            SHA512

            e29ea10ada98c71a18273b04f44f385b120d4e8473e441ce5748cfa44a23648814f2656f429b85440157988c88de776c6ac008dc38bf09cbb746c230a46c69fe

          • C:\Users\Admin\AppData\Local\Temp\nsl718D.tmp\nsExec.dll

            Filesize

            6KB

            MD5

            acc2b699edfea5bf5aae45aba3a41e96

            SHA1

            d2accf4d494e43ceb2cff69abe4dd17147d29cc2

            SHA256

            168a974eaa3f588d759db3f47c1a9fdc3494ba1fa1a73a84e5e3b2a4d58abd7e

            SHA512

            e29ea10ada98c71a18273b04f44f385b120d4e8473e441ce5748cfa44a23648814f2656f429b85440157988c88de776c6ac008dc38bf09cbb746c230a46c69fe

          • C:\Users\Admin\AppData\Local\Temp\nsl718D.tmp\nsExec.dll

            Filesize

            6KB

            MD5

            acc2b699edfea5bf5aae45aba3a41e96

            SHA1

            d2accf4d494e43ceb2cff69abe4dd17147d29cc2

            SHA256

            168a974eaa3f588d759db3f47c1a9fdc3494ba1fa1a73a84e5e3b2a4d58abd7e

            SHA512

            e29ea10ada98c71a18273b04f44f385b120d4e8473e441ce5748cfa44a23648814f2656f429b85440157988c88de776c6ac008dc38bf09cbb746c230a46c69fe

          • C:\Users\Admin\AppData\Local\Temp\nsl718D.tmp\nsExec.dll

            Filesize

            6KB

            MD5

            acc2b699edfea5bf5aae45aba3a41e96

            SHA1

            d2accf4d494e43ceb2cff69abe4dd17147d29cc2

            SHA256

            168a974eaa3f588d759db3f47c1a9fdc3494ba1fa1a73a84e5e3b2a4d58abd7e

            SHA512

            e29ea10ada98c71a18273b04f44f385b120d4e8473e441ce5748cfa44a23648814f2656f429b85440157988c88de776c6ac008dc38bf09cbb746c230a46c69fe

          • C:\Users\Admin\AppData\Local\Temp\nsl718D.tmp\nsExec.dll

            Filesize

            6KB

            MD5

            acc2b699edfea5bf5aae45aba3a41e96

            SHA1

            d2accf4d494e43ceb2cff69abe4dd17147d29cc2

            SHA256

            168a974eaa3f588d759db3f47c1a9fdc3494ba1fa1a73a84e5e3b2a4d58abd7e

            SHA512

            e29ea10ada98c71a18273b04f44f385b120d4e8473e441ce5748cfa44a23648814f2656f429b85440157988c88de776c6ac008dc38bf09cbb746c230a46c69fe

          • C:\Users\Admin\AppData\Local\Temp\nsl718D.tmp\nsExec.dll

            Filesize

            6KB

            MD5

            acc2b699edfea5bf5aae45aba3a41e96

            SHA1

            d2accf4d494e43ceb2cff69abe4dd17147d29cc2

            SHA256

            168a974eaa3f588d759db3f47c1a9fdc3494ba1fa1a73a84e5e3b2a4d58abd7e

            SHA512

            e29ea10ada98c71a18273b04f44f385b120d4e8473e441ce5748cfa44a23648814f2656f429b85440157988c88de776c6ac008dc38bf09cbb746c230a46c69fe

          • C:\Users\Admin\AppData\Local\Temp\nsl718D.tmp\nsExec.dll

            Filesize

            6KB

            MD5

            acc2b699edfea5bf5aae45aba3a41e96

            SHA1

            d2accf4d494e43ceb2cff69abe4dd17147d29cc2

            SHA256

            168a974eaa3f588d759db3f47c1a9fdc3494ba1fa1a73a84e5e3b2a4d58abd7e

            SHA512

            e29ea10ada98c71a18273b04f44f385b120d4e8473e441ce5748cfa44a23648814f2656f429b85440157988c88de776c6ac008dc38bf09cbb746c230a46c69fe

          • C:\Windows\SysWOW64\hfnapi.dll

            Filesize

            106KB

            MD5

            f77670af20abc4fa4116ca68b662e0fa

            SHA1

            24509bc0bea05ecfd779917d7cd44110573622ca

            SHA256

            08de5d7e051e9a11ab0d873f71643f8f8a14d322039f6bf37306873867cef1ae

            SHA512

            e5b529e8fa842e21f6be51262366ecb507704f23436f8f6e6eac037da27f6bbf3dcf3ef665c3db1730df0f78f99f691d56a3bcdeb5f6d9efdb5c9c597440d1e5

          • C:\Windows\SysWOW64\hfnapi.dll

            Filesize

            106KB

            MD5

            f77670af20abc4fa4116ca68b662e0fa

            SHA1

            24509bc0bea05ecfd779917d7cd44110573622ca

            SHA256

            08de5d7e051e9a11ab0d873f71643f8f8a14d322039f6bf37306873867cef1ae

            SHA512

            e5b529e8fa842e21f6be51262366ecb507704f23436f8f6e6eac037da27f6bbf3dcf3ef665c3db1730df0f78f99f691d56a3bcdeb5f6d9efdb5c9c597440d1e5

          • C:\Windows\SysWOW64\hfnapi.dll

            Filesize

            106KB

            MD5

            f77670af20abc4fa4116ca68b662e0fa

            SHA1

            24509bc0bea05ecfd779917d7cd44110573622ca

            SHA256

            08de5d7e051e9a11ab0d873f71643f8f8a14d322039f6bf37306873867cef1ae

            SHA512

            e5b529e8fa842e21f6be51262366ecb507704f23436f8f6e6eac037da27f6bbf3dcf3ef665c3db1730df0f78f99f691d56a3bcdeb5f6d9efdb5c9c597440d1e5

          • C:\Windows\SysWOW64\hfnapi.dll

            Filesize

            106KB

            MD5

            f77670af20abc4fa4116ca68b662e0fa

            SHA1

            24509bc0bea05ecfd779917d7cd44110573622ca

            SHA256

            08de5d7e051e9a11ab0d873f71643f8f8a14d322039f6bf37306873867cef1ae

            SHA512

            e5b529e8fa842e21f6be51262366ecb507704f23436f8f6e6eac037da27f6bbf3dcf3ef665c3db1730df0f78f99f691d56a3bcdeb5f6d9efdb5c9c597440d1e5

          • C:\Windows\SysWOW64\hfpapi.dll

            Filesize

            241KB

            MD5

            de4f91fe36af0d9040899a3f718811c4

            SHA1

            e2d9eed08e79f34a4ad58b847e2d6979a6443fed

            SHA256

            8f7cc2370de9cd8006be8ea05809ea9f2d25cf4a781e6e261505d206b5d0bdf4

            SHA512

            5e060f2b657b3d499993c4ca70b885ccc6f52620f476f9bc0c51c3797c573aa836d6f241722eb4a2c2b0a8cf2461e125545e77a3e40cb555cbd184e865c66909

          • C:\Windows\SysWOW64\hfpapi.dll

            Filesize

            241KB

            MD5

            de4f91fe36af0d9040899a3f718811c4

            SHA1

            e2d9eed08e79f34a4ad58b847e2d6979a6443fed

            SHA256

            8f7cc2370de9cd8006be8ea05809ea9f2d25cf4a781e6e261505d206b5d0bdf4

            SHA512

            5e060f2b657b3d499993c4ca70b885ccc6f52620f476f9bc0c51c3797c573aa836d6f241722eb4a2c2b0a8cf2461e125545e77a3e40cb555cbd184e865c66909

          • C:\Windows\SysWOW64\hfpapi.dll

            Filesize

            241KB

            MD5

            de4f91fe36af0d9040899a3f718811c4

            SHA1

            e2d9eed08e79f34a4ad58b847e2d6979a6443fed

            SHA256

            8f7cc2370de9cd8006be8ea05809ea9f2d25cf4a781e6e261505d206b5d0bdf4

            SHA512

            5e060f2b657b3d499993c4ca70b885ccc6f52620f476f9bc0c51c3797c573aa836d6f241722eb4a2c2b0a8cf2461e125545e77a3e40cb555cbd184e865c66909

          • C:\Windows\SysWOW64\installd.exe

            Filesize

            108KB

            MD5

            e8b38e7304ef0f2aab1b49577f9341b4

            SHA1

            e1b542581a56dfabc3d85ff2726c2c1ca0858813

            SHA256

            b36c54d7ad59b59b3bef4a4f98966fcdee11ce90e5732f159f1e629281248652

            SHA512

            aff4017ad11ec236c7a6c4ff2cabef2ff9c9766f6c1e05061bba82877eb0f4d956e7468409ff83b67072c5848e4b3a3bd7f36413322de26c95933ee87bad05ca

          • C:\Windows\SysWOW64\installd.exe

            Filesize

            108KB

            MD5

            e8b38e7304ef0f2aab1b49577f9341b4

            SHA1

            e1b542581a56dfabc3d85ff2726c2c1ca0858813

            SHA256

            b36c54d7ad59b59b3bef4a4f98966fcdee11ce90e5732f159f1e629281248652

            SHA512

            aff4017ad11ec236c7a6c4ff2cabef2ff9c9766f6c1e05061bba82877eb0f4d956e7468409ff83b67072c5848e4b3a3bd7f36413322de26c95933ee87bad05ca

          • C:\Windows\SysWOW64\nethtsrv.exe

            Filesize

            176KB

            MD5

            538d8d403892785e6c6111a413bb8371

            SHA1

            1c9f8d616dcd4ae7b65ae8f35ebfeed7dc6f6c15

            SHA256

            82f61ef6a0043522f8f9e151a2954f999f9d47b61258542ef55c4481ec3517ec

            SHA512

            978b59d8ee9292bf606490971aa4d8f41fd2bf7e33c63f336a602eb67c130caf3c08fd1018a015351ba2c711cb8bfb4bc498fc0094c500b03f000b0462cbd0fe

          • C:\Windows\SysWOW64\nethtsrv.exe

            Filesize

            176KB

            MD5

            538d8d403892785e6c6111a413bb8371

            SHA1

            1c9f8d616dcd4ae7b65ae8f35ebfeed7dc6f6c15

            SHA256

            82f61ef6a0043522f8f9e151a2954f999f9d47b61258542ef55c4481ec3517ec

            SHA512

            978b59d8ee9292bf606490971aa4d8f41fd2bf7e33c63f336a602eb67c130caf3c08fd1018a015351ba2c711cb8bfb4bc498fc0094c500b03f000b0462cbd0fe

          • C:\Windows\SysWOW64\nethtsrv.exe

            Filesize

            176KB

            MD5

            538d8d403892785e6c6111a413bb8371

            SHA1

            1c9f8d616dcd4ae7b65ae8f35ebfeed7dc6f6c15

            SHA256

            82f61ef6a0043522f8f9e151a2954f999f9d47b61258542ef55c4481ec3517ec

            SHA512

            978b59d8ee9292bf606490971aa4d8f41fd2bf7e33c63f336a602eb67c130caf3c08fd1018a015351ba2c711cb8bfb4bc498fc0094c500b03f000b0462cbd0fe

          • C:\Windows\SysWOW64\netupdsrv.exe

            Filesize

            159KB

            MD5

            5f2581d6201689939ac6e3efa360a265

            SHA1

            5d320da89c7258c1eeeffe5ab268164675f066ec

            SHA256

            7962477c3d4f4be07ff738831bc2cbea2126e611de34a6219cd21d51b42986fe

            SHA512

            3b0682dccc04f0f80ad71044d6d67c31cb055e8c541af9fbddab4ed22bc83f2fdce132bca5804edf6634ad4b39d52d3144507cb0e15afeeec25eec04d035faab

          • C:\Windows\SysWOW64\netupdsrv.exe

            Filesize

            159KB

            MD5

            5f2581d6201689939ac6e3efa360a265

            SHA1

            5d320da89c7258c1eeeffe5ab268164675f066ec

            SHA256

            7962477c3d4f4be07ff738831bc2cbea2126e611de34a6219cd21d51b42986fe

            SHA512

            3b0682dccc04f0f80ad71044d6d67c31cb055e8c541af9fbddab4ed22bc83f2fdce132bca5804edf6634ad4b39d52d3144507cb0e15afeeec25eec04d035faab

          • C:\Windows\SysWOW64\netupdsrv.exe

            Filesize

            159KB

            MD5

            5f2581d6201689939ac6e3efa360a265

            SHA1

            5d320da89c7258c1eeeffe5ab268164675f066ec

            SHA256

            7962477c3d4f4be07ff738831bc2cbea2126e611de34a6219cd21d51b42986fe

            SHA512

            3b0682dccc04f0f80ad71044d6d67c31cb055e8c541af9fbddab4ed22bc83f2fdce132bca5804edf6634ad4b39d52d3144507cb0e15afeeec25eec04d035faab

          • memory/3872-132-0x0000000000360000-0x00000000007BE000-memory.dmp

            Filesize

            4.4MB

          • memory/3872-168-0x0000000000360000-0x00000000007BE000-memory.dmp

            Filesize

            4.4MB