Analysis

  • max time kernel
    154s
  • max time network
    167s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20220812-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20220812-enlocale:en-usos:windows10-2004-x64system
  • submitted
    23-11-2022 10:22

General

  • Target

    7449abab18d519b3e6ba54556c54287791c8468ff3ca5fb7ffba6f365a30a6bc.exe

  • Size

    602KB

  • MD5

    6943dba9854237f3e52fdd8af2b5d07f

  • SHA1

    988d59916f623dfe20c52d8e39c663eca73005df

  • SHA256

    7449abab18d519b3e6ba54556c54287791c8468ff3ca5fb7ffba6f365a30a6bc

  • SHA512

    546720052a50ed078386dd4304916dc1ae543b859fe7f6aadb81a55ab42a25aa975f5f72ac5c243c450abd02e2e73bf5090623dd95389c623020e935deb52fbb

  • SSDEEP

    12288:+Iny5DYTj18qm6SHXetAttp4sqL1UugYgQh+qoNH:gUTj18qiXt/MSuf1ho

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\7449abab18d519b3e6ba54556c54287791c8468ff3ca5fb7ffba6f365a30a6bc.exe
    "C:\Users\Admin\AppData\Local\Temp\7449abab18d519b3e6ba54556c54287791c8468ff3ca5fb7ffba6f365a30a6bc.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:2264
    • C:\Windows\SysWOW64\net.exe
      net stop nethttpservice
      2⤵
      • Suspicious use of WriteProcessMemory
      PID:1312
      • C:\Windows\SysWOW64\net1.exe
        C:\Windows\system32\net1 stop nethttpservice
        3⤵
          PID:4436
      • C:\Windows\SysWOW64\net.exe
        net stop serviceupdater
        2⤵
        • Suspicious use of WriteProcessMemory
        PID:2432
        • C:\Windows\SysWOW64\net1.exe
          C:\Windows\system32\net1 stop serviceupdater
          3⤵
            PID:4708
        • C:\Windows\SysWOW64\installd.exe
          "C:\Windows\system32\installd.exe" nethfdrv
          2⤵
          • Executes dropped EXE
          • Loads dropped DLL
          PID:3468
        • C:\Windows\SysWOW64\nethtsrv.exe
          "C:\Windows\system32\nethtsrv.exe" -nfdi
          2⤵
          • Executes dropped EXE
          • Loads dropped DLL
          PID:4580
        • C:\Windows\SysWOW64\netupdsrv.exe
          "C:\Windows\system32\netupdsrv.exe" -nfdi
          2⤵
          • Executes dropped EXE
          PID:4424
        • C:\Windows\SysWOW64\net.exe
          net start nethttpservice
          2⤵
          • Suspicious use of WriteProcessMemory
          PID:2548
          • C:\Windows\SysWOW64\net1.exe
            C:\Windows\system32\net1 start nethttpservice
            3⤵
              PID:3504
          • C:\Windows\SysWOW64\net.exe
            net start serviceupdater
            2⤵
            • Suspicious use of WriteProcessMemory
            PID:712
            • C:\Windows\SysWOW64\net1.exe
              C:\Windows\system32\net1 start serviceupdater
              3⤵
                PID:2052
          • 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:1300
          • C:\Windows\SysWOW64\netupdsrv.exe
            C:\Windows\SysWOW64\netupdsrv.exe
            1⤵
            • Executes dropped EXE
            PID:1876

          Network

          MITRE ATT&CK Enterprise v6

          Replay Monitor

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          Downloads

          • C:\Users\Admin\AppData\Local\Temp\nsjB925.tmp\System.dll

            Filesize

            11KB

            MD5

            c17103ae9072a06da581dec998343fc1

            SHA1

            b72148c6bdfaada8b8c3f950e610ee7cf1da1f8d

            SHA256

            dc58d8ad81cacb0c1ed72e33bff8f23ea40b5252b5bb55d393a0903e6819ae2f

            SHA512

            d32a71aaef18e993f28096d536e41c4d016850721b31171513ce28bbd805a54fd290b7c3e9d935f72e676a1acfb4f0dcc89d95040a0dd29f2b6975855c18986f

          • C:\Users\Admin\AppData\Local\Temp\nsjB925.tmp\nsExec.dll

            Filesize

            6KB

            MD5

            acc2b699edfea5bf5aae45aba3a41e96

            SHA1

            d2accf4d494e43ceb2cff69abe4dd17147d29cc2

            SHA256

            168a974eaa3f588d759db3f47c1a9fdc3494ba1fa1a73a84e5e3b2a4d58abd7e

            SHA512

            e29ea10ada98c71a18273b04f44f385b120d4e8473e441ce5748cfa44a23648814f2656f429b85440157988c88de776c6ac008dc38bf09cbb746c230a46c69fe

          • C:\Users\Admin\AppData\Local\Temp\nsjB925.tmp\nsExec.dll

            Filesize

            6KB

            MD5

            acc2b699edfea5bf5aae45aba3a41e96

            SHA1

            d2accf4d494e43ceb2cff69abe4dd17147d29cc2

            SHA256

            168a974eaa3f588d759db3f47c1a9fdc3494ba1fa1a73a84e5e3b2a4d58abd7e

            SHA512

            e29ea10ada98c71a18273b04f44f385b120d4e8473e441ce5748cfa44a23648814f2656f429b85440157988c88de776c6ac008dc38bf09cbb746c230a46c69fe

          • C:\Users\Admin\AppData\Local\Temp\nsjB925.tmp\nsExec.dll

            Filesize

            6KB

            MD5

            acc2b699edfea5bf5aae45aba3a41e96

            SHA1

            d2accf4d494e43ceb2cff69abe4dd17147d29cc2

            SHA256

            168a974eaa3f588d759db3f47c1a9fdc3494ba1fa1a73a84e5e3b2a4d58abd7e

            SHA512

            e29ea10ada98c71a18273b04f44f385b120d4e8473e441ce5748cfa44a23648814f2656f429b85440157988c88de776c6ac008dc38bf09cbb746c230a46c69fe

          • C:\Users\Admin\AppData\Local\Temp\nsjB925.tmp\nsExec.dll

            Filesize

            6KB

            MD5

            acc2b699edfea5bf5aae45aba3a41e96

            SHA1

            d2accf4d494e43ceb2cff69abe4dd17147d29cc2

            SHA256

            168a974eaa3f588d759db3f47c1a9fdc3494ba1fa1a73a84e5e3b2a4d58abd7e

            SHA512

            e29ea10ada98c71a18273b04f44f385b120d4e8473e441ce5748cfa44a23648814f2656f429b85440157988c88de776c6ac008dc38bf09cbb746c230a46c69fe

          • C:\Users\Admin\AppData\Local\Temp\nsjB925.tmp\nsExec.dll

            Filesize

            6KB

            MD5

            acc2b699edfea5bf5aae45aba3a41e96

            SHA1

            d2accf4d494e43ceb2cff69abe4dd17147d29cc2

            SHA256

            168a974eaa3f588d759db3f47c1a9fdc3494ba1fa1a73a84e5e3b2a4d58abd7e

            SHA512

            e29ea10ada98c71a18273b04f44f385b120d4e8473e441ce5748cfa44a23648814f2656f429b85440157988c88de776c6ac008dc38bf09cbb746c230a46c69fe

          • C:\Users\Admin\AppData\Local\Temp\nsjB925.tmp\nsExec.dll

            Filesize

            6KB

            MD5

            acc2b699edfea5bf5aae45aba3a41e96

            SHA1

            d2accf4d494e43ceb2cff69abe4dd17147d29cc2

            SHA256

            168a974eaa3f588d759db3f47c1a9fdc3494ba1fa1a73a84e5e3b2a4d58abd7e

            SHA512

            e29ea10ada98c71a18273b04f44f385b120d4e8473e441ce5748cfa44a23648814f2656f429b85440157988c88de776c6ac008dc38bf09cbb746c230a46c69fe

          • C:\Users\Admin\AppData\Local\Temp\nsjB925.tmp\nsExec.dll

            Filesize

            6KB

            MD5

            acc2b699edfea5bf5aae45aba3a41e96

            SHA1

            d2accf4d494e43ceb2cff69abe4dd17147d29cc2

            SHA256

            168a974eaa3f588d759db3f47c1a9fdc3494ba1fa1a73a84e5e3b2a4d58abd7e

            SHA512

            e29ea10ada98c71a18273b04f44f385b120d4e8473e441ce5748cfa44a23648814f2656f429b85440157988c88de776c6ac008dc38bf09cbb746c230a46c69fe

          • C:\Users\Admin\AppData\Local\Temp\nsjB925.tmp\nsExec.dll

            Filesize

            6KB

            MD5

            acc2b699edfea5bf5aae45aba3a41e96

            SHA1

            d2accf4d494e43ceb2cff69abe4dd17147d29cc2

            SHA256

            168a974eaa3f588d759db3f47c1a9fdc3494ba1fa1a73a84e5e3b2a4d58abd7e

            SHA512

            e29ea10ada98c71a18273b04f44f385b120d4e8473e441ce5748cfa44a23648814f2656f429b85440157988c88de776c6ac008dc38bf09cbb746c230a46c69fe

          • C:\Windows\SysWOW64\hfnapi.dll

            Filesize

            106KB

            MD5

            0383f3e7c8c609be04d7a4338d7548bb

            SHA1

            c307d8671f247b9c9f81bdf5e066289c6c264e5d

            SHA256

            77bf9e04cb04a9d36de062bbef13d3a28235fd1f452a1e70b9adf64d5a4b0d60

            SHA512

            f3de87f5601f06873561bc70c547174ad1828c8ebd7908209231ebb59e9427ff2ef2a875158bf3e002225f68567be91f12ed0a84b9def64b5cdfa51a0230b3a0

          • C:\Windows\SysWOW64\hfnapi.dll

            Filesize

            106KB

            MD5

            0383f3e7c8c609be04d7a4338d7548bb

            SHA1

            c307d8671f247b9c9f81bdf5e066289c6c264e5d

            SHA256

            77bf9e04cb04a9d36de062bbef13d3a28235fd1f452a1e70b9adf64d5a4b0d60

            SHA512

            f3de87f5601f06873561bc70c547174ad1828c8ebd7908209231ebb59e9427ff2ef2a875158bf3e002225f68567be91f12ed0a84b9def64b5cdfa51a0230b3a0

          • C:\Windows\SysWOW64\hfnapi.dll

            Filesize

            106KB

            MD5

            0383f3e7c8c609be04d7a4338d7548bb

            SHA1

            c307d8671f247b9c9f81bdf5e066289c6c264e5d

            SHA256

            77bf9e04cb04a9d36de062bbef13d3a28235fd1f452a1e70b9adf64d5a4b0d60

            SHA512

            f3de87f5601f06873561bc70c547174ad1828c8ebd7908209231ebb59e9427ff2ef2a875158bf3e002225f68567be91f12ed0a84b9def64b5cdfa51a0230b3a0

          • C:\Windows\SysWOW64\hfnapi.dll

            Filesize

            106KB

            MD5

            0383f3e7c8c609be04d7a4338d7548bb

            SHA1

            c307d8671f247b9c9f81bdf5e066289c6c264e5d

            SHA256

            77bf9e04cb04a9d36de062bbef13d3a28235fd1f452a1e70b9adf64d5a4b0d60

            SHA512

            f3de87f5601f06873561bc70c547174ad1828c8ebd7908209231ebb59e9427ff2ef2a875158bf3e002225f68567be91f12ed0a84b9def64b5cdfa51a0230b3a0

          • C:\Windows\SysWOW64\hfpapi.dll

            Filesize

            241KB

            MD5

            2f0d60506634091160c4e10f9d46aba6

            SHA1

            83c153ca91e84d6dc8f831a7c6c35cb7a9071cad

            SHA256

            d5dd94ec9e3860da9328181c48d61a045933820415bc18889b9355cc7ead48df

            SHA512

            1a87e87a2b649c1d160134e3a72a01f46c6d2c27cde78182f8fc4f68e9e00efac51ec702b7e84cec40d410e248ce18ee80d1402eb6e56f0d73f6e9d5e2a02819

          • C:\Windows\SysWOW64\hfpapi.dll

            Filesize

            241KB

            MD5

            2f0d60506634091160c4e10f9d46aba6

            SHA1

            83c153ca91e84d6dc8f831a7c6c35cb7a9071cad

            SHA256

            d5dd94ec9e3860da9328181c48d61a045933820415bc18889b9355cc7ead48df

            SHA512

            1a87e87a2b649c1d160134e3a72a01f46c6d2c27cde78182f8fc4f68e9e00efac51ec702b7e84cec40d410e248ce18ee80d1402eb6e56f0d73f6e9d5e2a02819

          • C:\Windows\SysWOW64\hfpapi.dll

            Filesize

            241KB

            MD5

            2f0d60506634091160c4e10f9d46aba6

            SHA1

            83c153ca91e84d6dc8f831a7c6c35cb7a9071cad

            SHA256

            d5dd94ec9e3860da9328181c48d61a045933820415bc18889b9355cc7ead48df

            SHA512

            1a87e87a2b649c1d160134e3a72a01f46c6d2c27cde78182f8fc4f68e9e00efac51ec702b7e84cec40d410e248ce18ee80d1402eb6e56f0d73f6e9d5e2a02819

          • C:\Windows\SysWOW64\installd.exe

            Filesize

            108KB

            MD5

            598a043443d4488c4298f8e556559a30

            SHA1

            4f699caa57d44dca2f3100995663e67ad8513da1

            SHA256

            4e727601857505f941613e9efcfb5f7766186e2416803034cc9f25c70c79c65a

            SHA512

            6339e703307a4657792f6e7a33b75323abd342ca31bcf3d945fedccce4f2a9256e0b5f92e8230b5775cdf73ca73afd286c5ef37b3fb1562ee60737ec8d148dea

          • C:\Windows\SysWOW64\installd.exe

            Filesize

            108KB

            MD5

            598a043443d4488c4298f8e556559a30

            SHA1

            4f699caa57d44dca2f3100995663e67ad8513da1

            SHA256

            4e727601857505f941613e9efcfb5f7766186e2416803034cc9f25c70c79c65a

            SHA512

            6339e703307a4657792f6e7a33b75323abd342ca31bcf3d945fedccce4f2a9256e0b5f92e8230b5775cdf73ca73afd286c5ef37b3fb1562ee60737ec8d148dea

          • C:\Windows\SysWOW64\nethtsrv.exe

            Filesize

            176KB

            MD5

            2e848686b63057c1a7e93a5fc9044493

            SHA1

            9ba42e1d395b2a196010627a9424e6ab19094eb0

            SHA256

            37e514e805b7962038eaa56ff746436ca04bb006069b9193fea2328dbc359ca4

            SHA512

            246a96150fc07bcddd7fe5af05f19138072c24b6ede383bacde82f8582bd3d13da50938066aa766c2e6ab01d85929153607bcc94c0e2a9d184726db21c9d8864

          • C:\Windows\SysWOW64\nethtsrv.exe

            Filesize

            176KB

            MD5

            2e848686b63057c1a7e93a5fc9044493

            SHA1

            9ba42e1d395b2a196010627a9424e6ab19094eb0

            SHA256

            37e514e805b7962038eaa56ff746436ca04bb006069b9193fea2328dbc359ca4

            SHA512

            246a96150fc07bcddd7fe5af05f19138072c24b6ede383bacde82f8582bd3d13da50938066aa766c2e6ab01d85929153607bcc94c0e2a9d184726db21c9d8864

          • C:\Windows\SysWOW64\nethtsrv.exe

            Filesize

            176KB

            MD5

            2e848686b63057c1a7e93a5fc9044493

            SHA1

            9ba42e1d395b2a196010627a9424e6ab19094eb0

            SHA256

            37e514e805b7962038eaa56ff746436ca04bb006069b9193fea2328dbc359ca4

            SHA512

            246a96150fc07bcddd7fe5af05f19138072c24b6ede383bacde82f8582bd3d13da50938066aa766c2e6ab01d85929153607bcc94c0e2a9d184726db21c9d8864

          • C:\Windows\SysWOW64\netupdsrv.exe

            Filesize

            158KB

            MD5

            ffff3114452f4132582ee9a862011510

            SHA1

            f7bc03ab9115a82dcccce69d0fdcabf2580f7176

            SHA256

            ee05bc3e11c617ad4af2366484d929d0df7e608cee93a93dd559b6029c7c1c12

            SHA512

            95e23d59714a64ef91248c821d8d4b2b56c23aaccf226737e5a900618ef2eff9a7cfd3bfe3d502e1e3efe9b67379a8d302d099d3e7ebe27ea4804f09299bed51

          • C:\Windows\SysWOW64\netupdsrv.exe

            Filesize

            158KB

            MD5

            ffff3114452f4132582ee9a862011510

            SHA1

            f7bc03ab9115a82dcccce69d0fdcabf2580f7176

            SHA256

            ee05bc3e11c617ad4af2366484d929d0df7e608cee93a93dd559b6029c7c1c12

            SHA512

            95e23d59714a64ef91248c821d8d4b2b56c23aaccf226737e5a900618ef2eff9a7cfd3bfe3d502e1e3efe9b67379a8d302d099d3e7ebe27ea4804f09299bed51

          • C:\Windows\SysWOW64\netupdsrv.exe

            Filesize

            158KB

            MD5

            ffff3114452f4132582ee9a862011510

            SHA1

            f7bc03ab9115a82dcccce69d0fdcabf2580f7176

            SHA256

            ee05bc3e11c617ad4af2366484d929d0df7e608cee93a93dd559b6029c7c1c12

            SHA512

            95e23d59714a64ef91248c821d8d4b2b56c23aaccf226737e5a900618ef2eff9a7cfd3bfe3d502e1e3efe9b67379a8d302d099d3e7ebe27ea4804f09299bed51

          • memory/712-165-0x0000000000000000-mapping.dmp

          • memory/1312-136-0x0000000000000000-mapping.dmp

          • memory/2052-166-0x0000000000000000-mapping.dmp

          • memory/2264-132-0x0000000000360000-0x00000000007BE000-memory.dmp

            Filesize

            4.4MB

          • memory/2264-168-0x0000000000360000-0x00000000007BE000-memory.dmp

            Filesize

            4.4MB

          • memory/2432-140-0x0000000000000000-mapping.dmp

          • memory/2548-158-0x0000000000000000-mapping.dmp

          • memory/3468-142-0x0000000000000000-mapping.dmp

          • memory/3504-159-0x0000000000000000-mapping.dmp

          • memory/4424-153-0x0000000000000000-mapping.dmp

          • memory/4436-137-0x0000000000000000-mapping.dmp

          • memory/4580-147-0x0000000000000000-mapping.dmp

          • memory/4708-141-0x0000000000000000-mapping.dmp