Analysis

  • max time kernel
    151s
  • max time network
    194s
  • 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 10:17

General

  • Target

    a1394e2afacb13927311c476a693c470db3b690d31b74b4abab757788aa4faa8.exe

  • Size

    601KB

  • MD5

    7ade54834ca50c9f7d129ff522230daf

  • SHA1

    45ffd6ca7f11c94971e92f22dca0ad666576fb34

  • SHA256

    a1394e2afacb13927311c476a693c470db3b690d31b74b4abab757788aa4faa8

  • SHA512

    fe3a075ccc43db37bd694093253fe9ff634154b7dfaa478315298f483e50561be02824e633407fb57e056ab3e1d69e2a7f36e87af99e36ec0c79b0bf98b591ab

  • SSDEEP

    12288:+Iny5DYTmWt5+SVktzn8ZjYvNuZX0YEazwM51MG3rDS4:gUTmWezn8+sZXMaXzf

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\a1394e2afacb13927311c476a693c470db3b690d31b74b4abab757788aa4faa8.exe
    "C:\Users\Admin\AppData\Local\Temp\a1394e2afacb13927311c476a693c470db3b690d31b74b4abab757788aa4faa8.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:3448
    • C:\Windows\SysWOW64\net.exe
      net stop nethttpservice
      2⤵
      • Suspicious use of WriteProcessMemory
      PID:1124
      • C:\Windows\SysWOW64\net1.exe
        C:\Windows\system32\net1 stop nethttpservice
        3⤵
          PID:2748
      • C:\Windows\SysWOW64\net.exe
        net stop serviceupdater
        2⤵
        • Suspicious use of WriteProcessMemory
        PID:4780
        • C:\Windows\SysWOW64\net1.exe
          C:\Windows\system32\net1 stop serviceupdater
          3⤵
            PID:3596
        • C:\Windows\SysWOW64\installd.exe
          "C:\Windows\system32\installd.exe" nethfdrv
          2⤵
          • Executes dropped EXE
          • Loads dropped DLL
          PID:3280
        • C:\Windows\SysWOW64\nethtsrv.exe
          "C:\Windows\system32\nethtsrv.exe" -nfdi
          2⤵
          • Executes dropped EXE
          • Loads dropped DLL
          PID:4688
        • C:\Windows\SysWOW64\netupdsrv.exe
          "C:\Windows\system32\netupdsrv.exe" -nfdi
          2⤵
          • Executes dropped EXE
          PID:3748
        • C:\Windows\SysWOW64\net.exe
          net start nethttpservice
          2⤵
          • Suspicious use of WriteProcessMemory
          PID:3680
          • C:\Windows\SysWOW64\net1.exe
            C:\Windows\system32\net1 start nethttpservice
            3⤵
              PID:4312
          • C:\Windows\SysWOW64\net.exe
            net start serviceupdater
            2⤵
            • Suspicious use of WriteProcessMemory
            PID:4008
            • C:\Windows\SysWOW64\net1.exe
              C:\Windows\system32\net1 start serviceupdater
              3⤵
                PID:4848
          • 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:2960
          • C:\Windows\SysWOW64\netupdsrv.exe
            C:\Windows\SysWOW64\netupdsrv.exe
            1⤵
            • Executes dropped EXE
            PID:4020

          Network

          MITRE ATT&CK Enterprise v6

          Replay Monitor

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          Downloads

          • C:\Users\Admin\AppData\Local\Temp\nscBFA8.tmp\System.dll

            Filesize

            11KB

            MD5

            c17103ae9072a06da581dec998343fc1

            SHA1

            b72148c6bdfaada8b8c3f950e610ee7cf1da1f8d

            SHA256

            dc58d8ad81cacb0c1ed72e33bff8f23ea40b5252b5bb55d393a0903e6819ae2f

            SHA512

            d32a71aaef18e993f28096d536e41c4d016850721b31171513ce28bbd805a54fd290b7c3e9d935f72e676a1acfb4f0dcc89d95040a0dd29f2b6975855c18986f

          • C:\Users\Admin\AppData\Local\Temp\nscBFA8.tmp\nsExec.dll

            Filesize

            6KB

            MD5

            acc2b699edfea5bf5aae45aba3a41e96

            SHA1

            d2accf4d494e43ceb2cff69abe4dd17147d29cc2

            SHA256

            168a974eaa3f588d759db3f47c1a9fdc3494ba1fa1a73a84e5e3b2a4d58abd7e

            SHA512

            e29ea10ada98c71a18273b04f44f385b120d4e8473e441ce5748cfa44a23648814f2656f429b85440157988c88de776c6ac008dc38bf09cbb746c230a46c69fe

          • C:\Users\Admin\AppData\Local\Temp\nscBFA8.tmp\nsExec.dll

            Filesize

            6KB

            MD5

            acc2b699edfea5bf5aae45aba3a41e96

            SHA1

            d2accf4d494e43ceb2cff69abe4dd17147d29cc2

            SHA256

            168a974eaa3f588d759db3f47c1a9fdc3494ba1fa1a73a84e5e3b2a4d58abd7e

            SHA512

            e29ea10ada98c71a18273b04f44f385b120d4e8473e441ce5748cfa44a23648814f2656f429b85440157988c88de776c6ac008dc38bf09cbb746c230a46c69fe

          • C:\Users\Admin\AppData\Local\Temp\nscBFA8.tmp\nsExec.dll

            Filesize

            6KB

            MD5

            acc2b699edfea5bf5aae45aba3a41e96

            SHA1

            d2accf4d494e43ceb2cff69abe4dd17147d29cc2

            SHA256

            168a974eaa3f588d759db3f47c1a9fdc3494ba1fa1a73a84e5e3b2a4d58abd7e

            SHA512

            e29ea10ada98c71a18273b04f44f385b120d4e8473e441ce5748cfa44a23648814f2656f429b85440157988c88de776c6ac008dc38bf09cbb746c230a46c69fe

          • C:\Users\Admin\AppData\Local\Temp\nscBFA8.tmp\nsExec.dll

            Filesize

            6KB

            MD5

            acc2b699edfea5bf5aae45aba3a41e96

            SHA1

            d2accf4d494e43ceb2cff69abe4dd17147d29cc2

            SHA256

            168a974eaa3f588d759db3f47c1a9fdc3494ba1fa1a73a84e5e3b2a4d58abd7e

            SHA512

            e29ea10ada98c71a18273b04f44f385b120d4e8473e441ce5748cfa44a23648814f2656f429b85440157988c88de776c6ac008dc38bf09cbb746c230a46c69fe

          • C:\Users\Admin\AppData\Local\Temp\nscBFA8.tmp\nsExec.dll

            Filesize

            6KB

            MD5

            acc2b699edfea5bf5aae45aba3a41e96

            SHA1

            d2accf4d494e43ceb2cff69abe4dd17147d29cc2

            SHA256

            168a974eaa3f588d759db3f47c1a9fdc3494ba1fa1a73a84e5e3b2a4d58abd7e

            SHA512

            e29ea10ada98c71a18273b04f44f385b120d4e8473e441ce5748cfa44a23648814f2656f429b85440157988c88de776c6ac008dc38bf09cbb746c230a46c69fe

          • C:\Users\Admin\AppData\Local\Temp\nscBFA8.tmp\nsExec.dll

            Filesize

            6KB

            MD5

            acc2b699edfea5bf5aae45aba3a41e96

            SHA1

            d2accf4d494e43ceb2cff69abe4dd17147d29cc2

            SHA256

            168a974eaa3f588d759db3f47c1a9fdc3494ba1fa1a73a84e5e3b2a4d58abd7e

            SHA512

            e29ea10ada98c71a18273b04f44f385b120d4e8473e441ce5748cfa44a23648814f2656f429b85440157988c88de776c6ac008dc38bf09cbb746c230a46c69fe

          • C:\Users\Admin\AppData\Local\Temp\nscBFA8.tmp\nsExec.dll

            Filesize

            6KB

            MD5

            acc2b699edfea5bf5aae45aba3a41e96

            SHA1

            d2accf4d494e43ceb2cff69abe4dd17147d29cc2

            SHA256

            168a974eaa3f588d759db3f47c1a9fdc3494ba1fa1a73a84e5e3b2a4d58abd7e

            SHA512

            e29ea10ada98c71a18273b04f44f385b120d4e8473e441ce5748cfa44a23648814f2656f429b85440157988c88de776c6ac008dc38bf09cbb746c230a46c69fe

          • C:\Users\Admin\AppData\Local\Temp\nscBFA8.tmp\nsExec.dll

            Filesize

            6KB

            MD5

            acc2b699edfea5bf5aae45aba3a41e96

            SHA1

            d2accf4d494e43ceb2cff69abe4dd17147d29cc2

            SHA256

            168a974eaa3f588d759db3f47c1a9fdc3494ba1fa1a73a84e5e3b2a4d58abd7e

            SHA512

            e29ea10ada98c71a18273b04f44f385b120d4e8473e441ce5748cfa44a23648814f2656f429b85440157988c88de776c6ac008dc38bf09cbb746c230a46c69fe

          • C:\Windows\SysWOW64\hfnapi.dll

            Filesize

            106KB

            MD5

            a764473241290d19c5b407b584c7758c

            SHA1

            be960d5f906552c615c638d35afeb0f063437b07

            SHA256

            5120b7871688d3d7c076f8de71d3f71a8001d9e56029adaec14c5b268338cbd0

            SHA512

            b7be8511d0c8a90a5066491be44c804e2e11b59950d1813374a6e1ac88edadfca4237cca70c5cbb1a7d3cd920d131735bebc8e27f53a4f28fb500dae671b83ab

          • C:\Windows\SysWOW64\hfnapi.dll

            Filesize

            106KB

            MD5

            a764473241290d19c5b407b584c7758c

            SHA1

            be960d5f906552c615c638d35afeb0f063437b07

            SHA256

            5120b7871688d3d7c076f8de71d3f71a8001d9e56029adaec14c5b268338cbd0

            SHA512

            b7be8511d0c8a90a5066491be44c804e2e11b59950d1813374a6e1ac88edadfca4237cca70c5cbb1a7d3cd920d131735bebc8e27f53a4f28fb500dae671b83ab

          • C:\Windows\SysWOW64\hfnapi.dll

            Filesize

            106KB

            MD5

            a764473241290d19c5b407b584c7758c

            SHA1

            be960d5f906552c615c638d35afeb0f063437b07

            SHA256

            5120b7871688d3d7c076f8de71d3f71a8001d9e56029adaec14c5b268338cbd0

            SHA512

            b7be8511d0c8a90a5066491be44c804e2e11b59950d1813374a6e1ac88edadfca4237cca70c5cbb1a7d3cd920d131735bebc8e27f53a4f28fb500dae671b83ab

          • C:\Windows\SysWOW64\hfnapi.dll

            Filesize

            106KB

            MD5

            a764473241290d19c5b407b584c7758c

            SHA1

            be960d5f906552c615c638d35afeb0f063437b07

            SHA256

            5120b7871688d3d7c076f8de71d3f71a8001d9e56029adaec14c5b268338cbd0

            SHA512

            b7be8511d0c8a90a5066491be44c804e2e11b59950d1813374a6e1ac88edadfca4237cca70c5cbb1a7d3cd920d131735bebc8e27f53a4f28fb500dae671b83ab

          • C:\Windows\SysWOW64\hfpapi.dll

            Filesize

            241KB

            MD5

            28e5e5e2e845d3ea24d58adade21c2c2

            SHA1

            366cd5b537fe539be9282f4c2b1ac705280bbb42

            SHA256

            1a353a96f7a9807b767197940da405b15bd0b4da51828c6a92a09ab000711a35

            SHA512

            a8d79a0a50a375f971c75098c968f3baac8ef69553ffae980567bd984b2152daf85c20c498f4de37715e50459458af685e15cfddfd0e5cef195b2500356af269

          • C:\Windows\SysWOW64\hfpapi.dll

            Filesize

            241KB

            MD5

            28e5e5e2e845d3ea24d58adade21c2c2

            SHA1

            366cd5b537fe539be9282f4c2b1ac705280bbb42

            SHA256

            1a353a96f7a9807b767197940da405b15bd0b4da51828c6a92a09ab000711a35

            SHA512

            a8d79a0a50a375f971c75098c968f3baac8ef69553ffae980567bd984b2152daf85c20c498f4de37715e50459458af685e15cfddfd0e5cef195b2500356af269

          • C:\Windows\SysWOW64\hfpapi.dll

            Filesize

            241KB

            MD5

            28e5e5e2e845d3ea24d58adade21c2c2

            SHA1

            366cd5b537fe539be9282f4c2b1ac705280bbb42

            SHA256

            1a353a96f7a9807b767197940da405b15bd0b4da51828c6a92a09ab000711a35

            SHA512

            a8d79a0a50a375f971c75098c968f3baac8ef69553ffae980567bd984b2152daf85c20c498f4de37715e50459458af685e15cfddfd0e5cef195b2500356af269

          • C:\Windows\SysWOW64\installd.exe

            Filesize

            108KB

            MD5

            a5705ace2cb84ac8f63e5c31846599f6

            SHA1

            2e0f4ba64cc692bca26f27ec54f90e1bd4c604fe

            SHA256

            4367f03c7cff315e9e5931c59e20f728aebde2a242bd23d3e28198dd7de498f4

            SHA512

            034ec24c142a17fa376168bd89af888f7aa0ca82e92965b76595d9df93bf6d2836aa726d4b88a0c5544d9f50cc0cc2de2f113813443effb4afe453c900a96a3c

          • C:\Windows\SysWOW64\installd.exe

            Filesize

            108KB

            MD5

            a5705ace2cb84ac8f63e5c31846599f6

            SHA1

            2e0f4ba64cc692bca26f27ec54f90e1bd4c604fe

            SHA256

            4367f03c7cff315e9e5931c59e20f728aebde2a242bd23d3e28198dd7de498f4

            SHA512

            034ec24c142a17fa376168bd89af888f7aa0ca82e92965b76595d9df93bf6d2836aa726d4b88a0c5544d9f50cc0cc2de2f113813443effb4afe453c900a96a3c

          • C:\Windows\SysWOW64\nethtsrv.exe

            Filesize

            176KB

            MD5

            85ad84cd25de97c5154374d9dc95c1a3

            SHA1

            ec11a1ce2b7937869b96d1dde921f65216c78690

            SHA256

            10ab53747a8b8f4f75b0fbb8e786553175c6b1a8cf5386e92b039c0c8615c24c

            SHA512

            8db0fd77b801719aa047fe6fc165bed7b143d4ab8f0f3b73ae3490d03929b88c5547c2dfd2c68f6b5bb78d5fb185a4458393d119d20b25e71299d2ea981fbaca

          • C:\Windows\SysWOW64\nethtsrv.exe

            Filesize

            176KB

            MD5

            85ad84cd25de97c5154374d9dc95c1a3

            SHA1

            ec11a1ce2b7937869b96d1dde921f65216c78690

            SHA256

            10ab53747a8b8f4f75b0fbb8e786553175c6b1a8cf5386e92b039c0c8615c24c

            SHA512

            8db0fd77b801719aa047fe6fc165bed7b143d4ab8f0f3b73ae3490d03929b88c5547c2dfd2c68f6b5bb78d5fb185a4458393d119d20b25e71299d2ea981fbaca

          • C:\Windows\SysWOW64\nethtsrv.exe

            Filesize

            176KB

            MD5

            85ad84cd25de97c5154374d9dc95c1a3

            SHA1

            ec11a1ce2b7937869b96d1dde921f65216c78690

            SHA256

            10ab53747a8b8f4f75b0fbb8e786553175c6b1a8cf5386e92b039c0c8615c24c

            SHA512

            8db0fd77b801719aa047fe6fc165bed7b143d4ab8f0f3b73ae3490d03929b88c5547c2dfd2c68f6b5bb78d5fb185a4458393d119d20b25e71299d2ea981fbaca

          • C:\Windows\SysWOW64\netupdsrv.exe

            Filesize

            159KB

            MD5

            ac46fec9898f9f992dcc0aa99bf4fb56

            SHA1

            c3445a39e49e69d05c2d4218c3ae262b68736ac5

            SHA256

            1c6f574fb420a114f4fc53256b69a1c50ddedf7c49962af34e10664930ec0b92

            SHA512

            acb32488f96c650d361e5cffae459f720cc42652697741ad3e124175f0acf331fb23207a51827f20ddefc395fee87b648f40f07b3a139bf8744e2d17f7c12614

          • C:\Windows\SysWOW64\netupdsrv.exe

            Filesize

            159KB

            MD5

            ac46fec9898f9f992dcc0aa99bf4fb56

            SHA1

            c3445a39e49e69d05c2d4218c3ae262b68736ac5

            SHA256

            1c6f574fb420a114f4fc53256b69a1c50ddedf7c49962af34e10664930ec0b92

            SHA512

            acb32488f96c650d361e5cffae459f720cc42652697741ad3e124175f0acf331fb23207a51827f20ddefc395fee87b648f40f07b3a139bf8744e2d17f7c12614

          • C:\Windows\SysWOW64\netupdsrv.exe

            Filesize

            159KB

            MD5

            ac46fec9898f9f992dcc0aa99bf4fb56

            SHA1

            c3445a39e49e69d05c2d4218c3ae262b68736ac5

            SHA256

            1c6f574fb420a114f4fc53256b69a1c50ddedf7c49962af34e10664930ec0b92

            SHA512

            acb32488f96c650d361e5cffae459f720cc42652697741ad3e124175f0acf331fb23207a51827f20ddefc395fee87b648f40f07b3a139bf8744e2d17f7c12614

          • memory/1124-135-0x0000000000000000-mapping.dmp

          • memory/2748-136-0x0000000000000000-mapping.dmp

          • memory/3280-142-0x0000000000000000-mapping.dmp

          • memory/3448-168-0x0000000000360000-0x00000000007BE000-memory.dmp

            Filesize

            4.4MB

          • memory/3448-137-0x0000000000360000-0x00000000007BE000-memory.dmp

            Filesize

            4.4MB

          • memory/3596-141-0x0000000000000000-mapping.dmp

          • memory/3680-158-0x0000000000000000-mapping.dmp

          • memory/3748-153-0x0000000000000000-mapping.dmp

          • memory/4008-165-0x0000000000000000-mapping.dmp

          • memory/4312-159-0x0000000000000000-mapping.dmp

          • memory/4688-147-0x0000000000000000-mapping.dmp

          • memory/4780-140-0x0000000000000000-mapping.dmp

          • memory/4848-166-0x0000000000000000-mapping.dmp