Analysis

  • max time kernel
    148s
  • max time network
    156s
  • 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 10:13

General

  • Target

    c4606b34b7cd3419b4c287aa4bfda03340463b0495d07b3b26c8858161c4722d.exe

  • Size

    602KB

  • MD5

    b7db576839cae17a29ee3828815df7a4

  • SHA1

    70a3d91356947caf24fdf8eb2193801f82221576

  • SHA256

    c4606b34b7cd3419b4c287aa4bfda03340463b0495d07b3b26c8858161c4722d

  • SHA512

    495aca18b871e4e69bc5606c60cb7756b89e6a5a485768f1aa02315861b703fef2e6552928cf45c4525d25c9ece8f37bd5af7d54a551c93e83993f73e0ba759b

  • SSDEEP

    12288:DIny5DYTZILkFO++bDtOLhoJ4afJlCdSa/v4p+hUt:LUTZEkFOpbDtOhoJ4azcf

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\c4606b34b7cd3419b4c287aa4bfda03340463b0495d07b3b26c8858161c4722d.exe
    "C:\Users\Admin\AppData\Local\Temp\c4606b34b7cd3419b4c287aa4bfda03340463b0495d07b3b26c8858161c4722d.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:4552
    • C:\Windows\SysWOW64\net.exe
      net stop nethttpservice
      2⤵
      • Suspicious use of WriteProcessMemory
      PID:456
      • C:\Windows\SysWOW64\net1.exe
        C:\Windows\system32\net1 stop nethttpservice
        3⤵
          PID:2440
      • C:\Windows\SysWOW64\net.exe
        net stop serviceupdater
        2⤵
        • Suspicious use of WriteProcessMemory
        PID:2756
        • C:\Windows\SysWOW64\net1.exe
          C:\Windows\system32\net1 stop serviceupdater
          3⤵
            PID:1836
        • C:\Windows\SysWOW64\installd.exe
          "C:\Windows\system32\installd.exe" nethfdrv
          2⤵
          • Executes dropped EXE
          • Loads dropped DLL
          PID:1768
        • C:\Windows\SysWOW64\nethtsrv.exe
          "C:\Windows\system32\nethtsrv.exe" -nfdi
          2⤵
          • Executes dropped EXE
          • Loads dropped DLL
          PID:3560
        • C:\Windows\SysWOW64\netupdsrv.exe
          "C:\Windows\system32\netupdsrv.exe" -nfdi
          2⤵
          • Executes dropped EXE
          PID:3536
        • C:\Windows\SysWOW64\net.exe
          net start nethttpservice
          2⤵
          • Suspicious use of WriteProcessMemory
          PID:1496
          • C:\Windows\SysWOW64\net1.exe
            C:\Windows\system32\net1 start nethttpservice
            3⤵
              PID:1448
          • C:\Windows\SysWOW64\net.exe
            net start serviceupdater
            2⤵
            • Suspicious use of WriteProcessMemory
            PID:1808
            • C:\Windows\SysWOW64\net1.exe
              C:\Windows\system32\net1 start serviceupdater
              3⤵
                PID:4764
          • 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:1512
          • C:\Windows\SysWOW64\netupdsrv.exe
            C:\Windows\SysWOW64\netupdsrv.exe
            1⤵
            • Executes dropped EXE
            PID:2984

          Network

          MITRE ATT&CK Enterprise v6

          Replay Monitor

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          Downloads

          • C:\Users\Admin\AppData\Local\Temp\nsi9002.tmp\System.dll

            Filesize

            11KB

            MD5

            c17103ae9072a06da581dec998343fc1

            SHA1

            b72148c6bdfaada8b8c3f950e610ee7cf1da1f8d

            SHA256

            dc58d8ad81cacb0c1ed72e33bff8f23ea40b5252b5bb55d393a0903e6819ae2f

            SHA512

            d32a71aaef18e993f28096d536e41c4d016850721b31171513ce28bbd805a54fd290b7c3e9d935f72e676a1acfb4f0dcc89d95040a0dd29f2b6975855c18986f

          • C:\Users\Admin\AppData\Local\Temp\nsi9002.tmp\nsExec.dll

            Filesize

            6KB

            MD5

            acc2b699edfea5bf5aae45aba3a41e96

            SHA1

            d2accf4d494e43ceb2cff69abe4dd17147d29cc2

            SHA256

            168a974eaa3f588d759db3f47c1a9fdc3494ba1fa1a73a84e5e3b2a4d58abd7e

            SHA512

            e29ea10ada98c71a18273b04f44f385b120d4e8473e441ce5748cfa44a23648814f2656f429b85440157988c88de776c6ac008dc38bf09cbb746c230a46c69fe

          • C:\Users\Admin\AppData\Local\Temp\nsi9002.tmp\nsExec.dll

            Filesize

            6KB

            MD5

            acc2b699edfea5bf5aae45aba3a41e96

            SHA1

            d2accf4d494e43ceb2cff69abe4dd17147d29cc2

            SHA256

            168a974eaa3f588d759db3f47c1a9fdc3494ba1fa1a73a84e5e3b2a4d58abd7e

            SHA512

            e29ea10ada98c71a18273b04f44f385b120d4e8473e441ce5748cfa44a23648814f2656f429b85440157988c88de776c6ac008dc38bf09cbb746c230a46c69fe

          • C:\Users\Admin\AppData\Local\Temp\nsi9002.tmp\nsExec.dll

            Filesize

            6KB

            MD5

            acc2b699edfea5bf5aae45aba3a41e96

            SHA1

            d2accf4d494e43ceb2cff69abe4dd17147d29cc2

            SHA256

            168a974eaa3f588d759db3f47c1a9fdc3494ba1fa1a73a84e5e3b2a4d58abd7e

            SHA512

            e29ea10ada98c71a18273b04f44f385b120d4e8473e441ce5748cfa44a23648814f2656f429b85440157988c88de776c6ac008dc38bf09cbb746c230a46c69fe

          • C:\Users\Admin\AppData\Local\Temp\nsi9002.tmp\nsExec.dll

            Filesize

            6KB

            MD5

            acc2b699edfea5bf5aae45aba3a41e96

            SHA1

            d2accf4d494e43ceb2cff69abe4dd17147d29cc2

            SHA256

            168a974eaa3f588d759db3f47c1a9fdc3494ba1fa1a73a84e5e3b2a4d58abd7e

            SHA512

            e29ea10ada98c71a18273b04f44f385b120d4e8473e441ce5748cfa44a23648814f2656f429b85440157988c88de776c6ac008dc38bf09cbb746c230a46c69fe

          • C:\Users\Admin\AppData\Local\Temp\nsi9002.tmp\nsExec.dll

            Filesize

            6KB

            MD5

            acc2b699edfea5bf5aae45aba3a41e96

            SHA1

            d2accf4d494e43ceb2cff69abe4dd17147d29cc2

            SHA256

            168a974eaa3f588d759db3f47c1a9fdc3494ba1fa1a73a84e5e3b2a4d58abd7e

            SHA512

            e29ea10ada98c71a18273b04f44f385b120d4e8473e441ce5748cfa44a23648814f2656f429b85440157988c88de776c6ac008dc38bf09cbb746c230a46c69fe

          • C:\Users\Admin\AppData\Local\Temp\nsi9002.tmp\nsExec.dll

            Filesize

            6KB

            MD5

            acc2b699edfea5bf5aae45aba3a41e96

            SHA1

            d2accf4d494e43ceb2cff69abe4dd17147d29cc2

            SHA256

            168a974eaa3f588d759db3f47c1a9fdc3494ba1fa1a73a84e5e3b2a4d58abd7e

            SHA512

            e29ea10ada98c71a18273b04f44f385b120d4e8473e441ce5748cfa44a23648814f2656f429b85440157988c88de776c6ac008dc38bf09cbb746c230a46c69fe

          • C:\Users\Admin\AppData\Local\Temp\nsi9002.tmp\nsExec.dll

            Filesize

            6KB

            MD5

            acc2b699edfea5bf5aae45aba3a41e96

            SHA1

            d2accf4d494e43ceb2cff69abe4dd17147d29cc2

            SHA256

            168a974eaa3f588d759db3f47c1a9fdc3494ba1fa1a73a84e5e3b2a4d58abd7e

            SHA512

            e29ea10ada98c71a18273b04f44f385b120d4e8473e441ce5748cfa44a23648814f2656f429b85440157988c88de776c6ac008dc38bf09cbb746c230a46c69fe

          • C:\Users\Admin\AppData\Local\Temp\nsi9002.tmp\nsExec.dll

            Filesize

            6KB

            MD5

            acc2b699edfea5bf5aae45aba3a41e96

            SHA1

            d2accf4d494e43ceb2cff69abe4dd17147d29cc2

            SHA256

            168a974eaa3f588d759db3f47c1a9fdc3494ba1fa1a73a84e5e3b2a4d58abd7e

            SHA512

            e29ea10ada98c71a18273b04f44f385b120d4e8473e441ce5748cfa44a23648814f2656f429b85440157988c88de776c6ac008dc38bf09cbb746c230a46c69fe

          • C:\Windows\SysWOW64\hfnapi.dll

            Filesize

            106KB

            MD5

            00d9b20c481bd1568c2e0ebced1eebb3

            SHA1

            08a45ae482a50f60e10f6cf89f7da5145de9002c

            SHA256

            eace277518269242f2014e4ec9f5ac4f9e6e19ccbb40a50eb0e6ca05acc52492

            SHA512

            6e65f3de1a4f70222d8956394a1248eead16d45504b1090877d61ec5106f9c1b13becf2e27be1d816d7ca08c1f0c6d212bbf8fd96f9cd6f8aa4f60d2fac614b0

          • C:\Windows\SysWOW64\hfnapi.dll

            Filesize

            106KB

            MD5

            00d9b20c481bd1568c2e0ebced1eebb3

            SHA1

            08a45ae482a50f60e10f6cf89f7da5145de9002c

            SHA256

            eace277518269242f2014e4ec9f5ac4f9e6e19ccbb40a50eb0e6ca05acc52492

            SHA512

            6e65f3de1a4f70222d8956394a1248eead16d45504b1090877d61ec5106f9c1b13becf2e27be1d816d7ca08c1f0c6d212bbf8fd96f9cd6f8aa4f60d2fac614b0

          • C:\Windows\SysWOW64\hfnapi.dll

            Filesize

            106KB

            MD5

            00d9b20c481bd1568c2e0ebced1eebb3

            SHA1

            08a45ae482a50f60e10f6cf89f7da5145de9002c

            SHA256

            eace277518269242f2014e4ec9f5ac4f9e6e19ccbb40a50eb0e6ca05acc52492

            SHA512

            6e65f3de1a4f70222d8956394a1248eead16d45504b1090877d61ec5106f9c1b13becf2e27be1d816d7ca08c1f0c6d212bbf8fd96f9cd6f8aa4f60d2fac614b0

          • C:\Windows\SysWOW64\hfnapi.dll

            Filesize

            106KB

            MD5

            00d9b20c481bd1568c2e0ebced1eebb3

            SHA1

            08a45ae482a50f60e10f6cf89f7da5145de9002c

            SHA256

            eace277518269242f2014e4ec9f5ac4f9e6e19ccbb40a50eb0e6ca05acc52492

            SHA512

            6e65f3de1a4f70222d8956394a1248eead16d45504b1090877d61ec5106f9c1b13becf2e27be1d816d7ca08c1f0c6d212bbf8fd96f9cd6f8aa4f60d2fac614b0

          • C:\Windows\SysWOW64\hfpapi.dll

            Filesize

            241KB

            MD5

            cb7ac36d23e3ff2b93ffbd4981c949ca

            SHA1

            867d8fde54e6ae21fd3fe4e5ed7eeae0064677a9

            SHA256

            ab49506595b88c9255dbd45d50f357470a3cdd2db6ffe21574605eb2f7b51d1e

            SHA512

            d31dce854b16757479984d43e10f97863c78ee7cb058e6374482fea3fd4b200eceb16a05bbdf0e4d3c387665148ac602e1d90d1f616b411cdc7649519803c094

          • C:\Windows\SysWOW64\hfpapi.dll

            Filesize

            241KB

            MD5

            cb7ac36d23e3ff2b93ffbd4981c949ca

            SHA1

            867d8fde54e6ae21fd3fe4e5ed7eeae0064677a9

            SHA256

            ab49506595b88c9255dbd45d50f357470a3cdd2db6ffe21574605eb2f7b51d1e

            SHA512

            d31dce854b16757479984d43e10f97863c78ee7cb058e6374482fea3fd4b200eceb16a05bbdf0e4d3c387665148ac602e1d90d1f616b411cdc7649519803c094

          • C:\Windows\SysWOW64\hfpapi.dll

            Filesize

            241KB

            MD5

            cb7ac36d23e3ff2b93ffbd4981c949ca

            SHA1

            867d8fde54e6ae21fd3fe4e5ed7eeae0064677a9

            SHA256

            ab49506595b88c9255dbd45d50f357470a3cdd2db6ffe21574605eb2f7b51d1e

            SHA512

            d31dce854b16757479984d43e10f97863c78ee7cb058e6374482fea3fd4b200eceb16a05bbdf0e4d3c387665148ac602e1d90d1f616b411cdc7649519803c094

          • C:\Windows\SysWOW64\installd.exe

            Filesize

            108KB

            MD5

            79dd8e81e5e1ff943c2d97fa5dc6e1b4

            SHA1

            9f8f0dd5bd3022a0edc31caf90a8f998e27edf02

            SHA256

            a5b4addea138210c04ce7d50bfb52d2f0d1d3de013d36a2aa9cb1e6ca1f873a1

            SHA512

            0006b51bb3d5a610e8cf63a617ac373b303276e0c90e51e7ca65b2d641206aff27f04cb1225dacbe345a7afd697fbfe948290d247a6946390fbae8b2af36d7f6

          • C:\Windows\SysWOW64\installd.exe

            Filesize

            108KB

            MD5

            79dd8e81e5e1ff943c2d97fa5dc6e1b4

            SHA1

            9f8f0dd5bd3022a0edc31caf90a8f998e27edf02

            SHA256

            a5b4addea138210c04ce7d50bfb52d2f0d1d3de013d36a2aa9cb1e6ca1f873a1

            SHA512

            0006b51bb3d5a610e8cf63a617ac373b303276e0c90e51e7ca65b2d641206aff27f04cb1225dacbe345a7afd697fbfe948290d247a6946390fbae8b2af36d7f6

          • C:\Windows\SysWOW64\nethtsrv.exe

            Filesize

            176KB

            MD5

            9fcbf27bb01d3d01bce76a7f0fffa728

            SHA1

            a96c6dd4da62e0507c95e046af9e907a1acbf556

            SHA256

            6adb5116f959bd5c400d673b669aa4a7eb171ec23153bbb8565b62fbf141ccbf

            SHA512

            930129edd99e3617dc9c1a909db5fc3f5b4d0033298a43d7f9e938339210947d70af99df887262151d296f5bbc3ac20e4d4c430f86724571cb79d26b13361c02

          • C:\Windows\SysWOW64\nethtsrv.exe

            Filesize

            176KB

            MD5

            9fcbf27bb01d3d01bce76a7f0fffa728

            SHA1

            a96c6dd4da62e0507c95e046af9e907a1acbf556

            SHA256

            6adb5116f959bd5c400d673b669aa4a7eb171ec23153bbb8565b62fbf141ccbf

            SHA512

            930129edd99e3617dc9c1a909db5fc3f5b4d0033298a43d7f9e938339210947d70af99df887262151d296f5bbc3ac20e4d4c430f86724571cb79d26b13361c02

          • C:\Windows\SysWOW64\nethtsrv.exe

            Filesize

            176KB

            MD5

            9fcbf27bb01d3d01bce76a7f0fffa728

            SHA1

            a96c6dd4da62e0507c95e046af9e907a1acbf556

            SHA256

            6adb5116f959bd5c400d673b669aa4a7eb171ec23153bbb8565b62fbf141ccbf

            SHA512

            930129edd99e3617dc9c1a909db5fc3f5b4d0033298a43d7f9e938339210947d70af99df887262151d296f5bbc3ac20e4d4c430f86724571cb79d26b13361c02

          • C:\Windows\SysWOW64\netupdsrv.exe

            Filesize

            158KB

            MD5

            522a07c1ab5c0cd2a4bcef371f9dc9ed

            SHA1

            024561bdf4ae748d76b5979d3b1294c1ab50763c

            SHA256

            9752d9b35b2583c4270569cc490cca48edcd26f789e60f006ddd46e0e2dc8be4

            SHA512

            cc4307f377962e3eb5f54ad3f8687800f2ad84c11b59d1c2729ecde2b0ceaa4035f8b3e631ea4276103adc093f452dda71702669eca2ec9625391f14aa4fa167

          • C:\Windows\SysWOW64\netupdsrv.exe

            Filesize

            158KB

            MD5

            522a07c1ab5c0cd2a4bcef371f9dc9ed

            SHA1

            024561bdf4ae748d76b5979d3b1294c1ab50763c

            SHA256

            9752d9b35b2583c4270569cc490cca48edcd26f789e60f006ddd46e0e2dc8be4

            SHA512

            cc4307f377962e3eb5f54ad3f8687800f2ad84c11b59d1c2729ecde2b0ceaa4035f8b3e631ea4276103adc093f452dda71702669eca2ec9625391f14aa4fa167

          • C:\Windows\SysWOW64\netupdsrv.exe

            Filesize

            158KB

            MD5

            522a07c1ab5c0cd2a4bcef371f9dc9ed

            SHA1

            024561bdf4ae748d76b5979d3b1294c1ab50763c

            SHA256

            9752d9b35b2583c4270569cc490cca48edcd26f789e60f006ddd46e0e2dc8be4

            SHA512

            cc4307f377962e3eb5f54ad3f8687800f2ad84c11b59d1c2729ecde2b0ceaa4035f8b3e631ea4276103adc093f452dda71702669eca2ec9625391f14aa4fa167

          • memory/456-136-0x0000000000000000-mapping.dmp

          • memory/1448-159-0x0000000000000000-mapping.dmp

          • memory/1496-158-0x0000000000000000-mapping.dmp

          • memory/1768-142-0x0000000000000000-mapping.dmp

          • memory/1808-165-0x0000000000000000-mapping.dmp

          • memory/1836-141-0x0000000000000000-mapping.dmp

          • memory/2440-137-0x0000000000000000-mapping.dmp

          • memory/2756-140-0x0000000000000000-mapping.dmp

          • memory/3536-153-0x0000000000000000-mapping.dmp

          • memory/3560-147-0x0000000000000000-mapping.dmp

          • memory/4552-132-0x0000000000360000-0x00000000007BE000-memory.dmp

            Filesize

            4.4MB

          • memory/4552-168-0x0000000000360000-0x00000000007BE000-memory.dmp

            Filesize

            4.4MB

          • memory/4764-166-0x0000000000000000-mapping.dmp