Analysis

  • max time kernel
    166s
  • max time network
    204s
  • 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 10:54

General

  • Target

    85e4e95e2896013fc300ce9e8bbd09f380b254416cd8e9005b5e757d3bb43509.exe

  • Size

    445KB

  • MD5

    ccc0b4e943c57ef42a08c34f7520ada1

  • SHA1

    86c524bb6feed1a38fdef088bcb0a537da56535e

  • SHA256

    85e4e95e2896013fc300ce9e8bbd09f380b254416cd8e9005b5e757d3bb43509

  • SHA512

    a8c9745c2938472e36fa98a164f66aa67cd7dd0cc7a38fc559c36508dd2791244ed5ea3431c1ee6abcbff5e4073c523eea8e8768ffe082ce04c575426ea6a04c

  • SSDEEP

    12288:Q/q7TfsuoM8rGg5zQtGa8p3kWLwX9eYElkmV8A5x27o:Q/KT0u4i6QtC+9eYQjzbZ

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\85e4e95e2896013fc300ce9e8bbd09f380b254416cd8e9005b5e757d3bb43509.exe
    "C:\Users\Admin\AppData\Local\Temp\85e4e95e2896013fc300ce9e8bbd09f380b254416cd8e9005b5e757d3bb43509.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:4300
    • C:\Windows\SysWOW64\net.exe
      net stop nethttpservice
      2⤵
      • Suspicious use of WriteProcessMemory
      PID:392
      • C:\Windows\SysWOW64\net1.exe
        C:\Windows\system32\net1 stop nethttpservice
        3⤵
          PID:4148
      • C:\Windows\SysWOW64\net.exe
        net stop serviceupdater
        2⤵
        • Suspicious use of WriteProcessMemory
        PID:4864
        • C:\Windows\SysWOW64\net1.exe
          C:\Windows\system32\net1 stop serviceupdater
          3⤵
            PID:2184
        • C:\Windows\SysWOW64\installd.exe
          "C:\Windows\system32\installd.exe" nethfdrv
          2⤵
          • Executes dropped EXE
          • Loads dropped DLL
          PID:4860
        • C:\Windows\SysWOW64\nethtsrv.exe
          "C:\Windows\system32\nethtsrv.exe" -nfdi
          2⤵
          • Executes dropped EXE
          • Loads dropped DLL
          PID:3572
        • C:\Windows\SysWOW64\netupdsrv.exe
          "C:\Windows\system32\netupdsrv.exe" -nfdi
          2⤵
          • Executes dropped EXE
          PID:2108
        • C:\Windows\SysWOW64\net.exe
          net start nethttpservice
          2⤵
          • Suspicious use of WriteProcessMemory
          PID:1992
          • C:\Windows\SysWOW64\net1.exe
            C:\Windows\system32\net1 start nethttpservice
            3⤵
              PID:4592
          • C:\Windows\SysWOW64\net.exe
            net start serviceupdater
            2⤵
            • Suspicious use of WriteProcessMemory
            PID:1944
            • C:\Windows\SysWOW64\net1.exe
              C:\Windows\system32\net1 start serviceupdater
              3⤵
                PID:4244
          • 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:3124
          • C:\Windows\SysWOW64\netupdsrv.exe
            C:\Windows\SysWOW64\netupdsrv.exe
            1⤵
            • Executes dropped EXE
            PID:3392

          Network

          MITRE ATT&CK Matrix ATT&CK v6

          Discovery

          Query Registry

          1
          T1012

          System Information Discovery

          1
          T1082

          Replay Monitor

          Loading Replay Monitor...

          Downloads

          • C:\Users\Admin\AppData\Local\Temp\nsj44CB.tmp\System.dll
            Filesize

            11KB

            MD5

            c17103ae9072a06da581dec998343fc1

            SHA1

            b72148c6bdfaada8b8c3f950e610ee7cf1da1f8d

            SHA256

            dc58d8ad81cacb0c1ed72e33bff8f23ea40b5252b5bb55d393a0903e6819ae2f

            SHA512

            d32a71aaef18e993f28096d536e41c4d016850721b31171513ce28bbd805a54fd290b7c3e9d935f72e676a1acfb4f0dcc89d95040a0dd29f2b6975855c18986f

          • C:\Users\Admin\AppData\Local\Temp\nsj44CB.tmp\nsExec.dll
            Filesize

            6KB

            MD5

            acc2b699edfea5bf5aae45aba3a41e96

            SHA1

            d2accf4d494e43ceb2cff69abe4dd17147d29cc2

            SHA256

            168a974eaa3f588d759db3f47c1a9fdc3494ba1fa1a73a84e5e3b2a4d58abd7e

            SHA512

            e29ea10ada98c71a18273b04f44f385b120d4e8473e441ce5748cfa44a23648814f2656f429b85440157988c88de776c6ac008dc38bf09cbb746c230a46c69fe

          • C:\Users\Admin\AppData\Local\Temp\nsj44CB.tmp\nsExec.dll
            Filesize

            6KB

            MD5

            acc2b699edfea5bf5aae45aba3a41e96

            SHA1

            d2accf4d494e43ceb2cff69abe4dd17147d29cc2

            SHA256

            168a974eaa3f588d759db3f47c1a9fdc3494ba1fa1a73a84e5e3b2a4d58abd7e

            SHA512

            e29ea10ada98c71a18273b04f44f385b120d4e8473e441ce5748cfa44a23648814f2656f429b85440157988c88de776c6ac008dc38bf09cbb746c230a46c69fe

          • C:\Users\Admin\AppData\Local\Temp\nsj44CB.tmp\nsExec.dll
            Filesize

            6KB

            MD5

            acc2b699edfea5bf5aae45aba3a41e96

            SHA1

            d2accf4d494e43ceb2cff69abe4dd17147d29cc2

            SHA256

            168a974eaa3f588d759db3f47c1a9fdc3494ba1fa1a73a84e5e3b2a4d58abd7e

            SHA512

            e29ea10ada98c71a18273b04f44f385b120d4e8473e441ce5748cfa44a23648814f2656f429b85440157988c88de776c6ac008dc38bf09cbb746c230a46c69fe

          • C:\Users\Admin\AppData\Local\Temp\nsj44CB.tmp\nsExec.dll
            Filesize

            6KB

            MD5

            acc2b699edfea5bf5aae45aba3a41e96

            SHA1

            d2accf4d494e43ceb2cff69abe4dd17147d29cc2

            SHA256

            168a974eaa3f588d759db3f47c1a9fdc3494ba1fa1a73a84e5e3b2a4d58abd7e

            SHA512

            e29ea10ada98c71a18273b04f44f385b120d4e8473e441ce5748cfa44a23648814f2656f429b85440157988c88de776c6ac008dc38bf09cbb746c230a46c69fe

          • C:\Users\Admin\AppData\Local\Temp\nsj44CB.tmp\nsExec.dll
            Filesize

            6KB

            MD5

            acc2b699edfea5bf5aae45aba3a41e96

            SHA1

            d2accf4d494e43ceb2cff69abe4dd17147d29cc2

            SHA256

            168a974eaa3f588d759db3f47c1a9fdc3494ba1fa1a73a84e5e3b2a4d58abd7e

            SHA512

            e29ea10ada98c71a18273b04f44f385b120d4e8473e441ce5748cfa44a23648814f2656f429b85440157988c88de776c6ac008dc38bf09cbb746c230a46c69fe

          • C:\Users\Admin\AppData\Local\Temp\nsj44CB.tmp\nsExec.dll
            Filesize

            6KB

            MD5

            acc2b699edfea5bf5aae45aba3a41e96

            SHA1

            d2accf4d494e43ceb2cff69abe4dd17147d29cc2

            SHA256

            168a974eaa3f588d759db3f47c1a9fdc3494ba1fa1a73a84e5e3b2a4d58abd7e

            SHA512

            e29ea10ada98c71a18273b04f44f385b120d4e8473e441ce5748cfa44a23648814f2656f429b85440157988c88de776c6ac008dc38bf09cbb746c230a46c69fe

          • C:\Users\Admin\AppData\Local\Temp\nsj44CB.tmp\nsExec.dll
            Filesize

            6KB

            MD5

            acc2b699edfea5bf5aae45aba3a41e96

            SHA1

            d2accf4d494e43ceb2cff69abe4dd17147d29cc2

            SHA256

            168a974eaa3f588d759db3f47c1a9fdc3494ba1fa1a73a84e5e3b2a4d58abd7e

            SHA512

            e29ea10ada98c71a18273b04f44f385b120d4e8473e441ce5748cfa44a23648814f2656f429b85440157988c88de776c6ac008dc38bf09cbb746c230a46c69fe

          • C:\Users\Admin\AppData\Local\Temp\nsj44CB.tmp\nsExec.dll
            Filesize

            6KB

            MD5

            acc2b699edfea5bf5aae45aba3a41e96

            SHA1

            d2accf4d494e43ceb2cff69abe4dd17147d29cc2

            SHA256

            168a974eaa3f588d759db3f47c1a9fdc3494ba1fa1a73a84e5e3b2a4d58abd7e

            SHA512

            e29ea10ada98c71a18273b04f44f385b120d4e8473e441ce5748cfa44a23648814f2656f429b85440157988c88de776c6ac008dc38bf09cbb746c230a46c69fe

          • C:\Windows\SysWOW64\hfnapi.dll
            Filesize

            106KB

            MD5

            23f4e2f7e469c78a75d82968b0ef3f4c

            SHA1

            f30ea54bd06612533f37238d2ecb3be5262ac6e5

            SHA256

            97485c3f50ef090b98ff7c82c7ef7fade450cfb04cd162067f12d6c36794c842

            SHA512

            51eb7816a042b4d135718c50ba02eced62191290e47a9a76af412732e5dfdd2da17367c70dd0b3afceb10e71fafe9437cd6f84dc0913c52f11077802277f2f0d

          • C:\Windows\SysWOW64\hfnapi.dll
            Filesize

            106KB

            MD5

            23f4e2f7e469c78a75d82968b0ef3f4c

            SHA1

            f30ea54bd06612533f37238d2ecb3be5262ac6e5

            SHA256

            97485c3f50ef090b98ff7c82c7ef7fade450cfb04cd162067f12d6c36794c842

            SHA512

            51eb7816a042b4d135718c50ba02eced62191290e47a9a76af412732e5dfdd2da17367c70dd0b3afceb10e71fafe9437cd6f84dc0913c52f11077802277f2f0d

          • C:\Windows\SysWOW64\hfnapi.dll
            Filesize

            106KB

            MD5

            23f4e2f7e469c78a75d82968b0ef3f4c

            SHA1

            f30ea54bd06612533f37238d2ecb3be5262ac6e5

            SHA256

            97485c3f50ef090b98ff7c82c7ef7fade450cfb04cd162067f12d6c36794c842

            SHA512

            51eb7816a042b4d135718c50ba02eced62191290e47a9a76af412732e5dfdd2da17367c70dd0b3afceb10e71fafe9437cd6f84dc0913c52f11077802277f2f0d

          • C:\Windows\SysWOW64\hfnapi.dll
            Filesize

            106KB

            MD5

            23f4e2f7e469c78a75d82968b0ef3f4c

            SHA1

            f30ea54bd06612533f37238d2ecb3be5262ac6e5

            SHA256

            97485c3f50ef090b98ff7c82c7ef7fade450cfb04cd162067f12d6c36794c842

            SHA512

            51eb7816a042b4d135718c50ba02eced62191290e47a9a76af412732e5dfdd2da17367c70dd0b3afceb10e71fafe9437cd6f84dc0913c52f11077802277f2f0d

          • C:\Windows\SysWOW64\hfpapi.dll
            Filesize

            241KB

            MD5

            107dc4725ea09d994127d6287ed37968

            SHA1

            7ab3b5d6e75eff811404041f3a550f0532d87e86

            SHA256

            24d256fd923a62ad8cf5ca1a176047fc109057f430a9f2e70e4673a92aa7a3a3

            SHA512

            df8612a4fd4a69c260210b30720e08c0ee2c52fd7161f198d7b22e0d12e0f143fe7479efec31d768fd16e3af33bde01ed53bbb267d5dbb4deae04618875b9c89

          • C:\Windows\SysWOW64\hfpapi.dll
            Filesize

            241KB

            MD5

            107dc4725ea09d994127d6287ed37968

            SHA1

            7ab3b5d6e75eff811404041f3a550f0532d87e86

            SHA256

            24d256fd923a62ad8cf5ca1a176047fc109057f430a9f2e70e4673a92aa7a3a3

            SHA512

            df8612a4fd4a69c260210b30720e08c0ee2c52fd7161f198d7b22e0d12e0f143fe7479efec31d768fd16e3af33bde01ed53bbb267d5dbb4deae04618875b9c89

          • C:\Windows\SysWOW64\hfpapi.dll
            Filesize

            241KB

            MD5

            107dc4725ea09d994127d6287ed37968

            SHA1

            7ab3b5d6e75eff811404041f3a550f0532d87e86

            SHA256

            24d256fd923a62ad8cf5ca1a176047fc109057f430a9f2e70e4673a92aa7a3a3

            SHA512

            df8612a4fd4a69c260210b30720e08c0ee2c52fd7161f198d7b22e0d12e0f143fe7479efec31d768fd16e3af33bde01ed53bbb267d5dbb4deae04618875b9c89

          • C:\Windows\SysWOW64\installd.exe
            Filesize

            108KB

            MD5

            02f78906fff7b6b8d203153606b00e80

            SHA1

            796f75b800964a9a57ae3d466c0e1a452d1344f8

            SHA256

            6f531caf297849b3179bbdf50d1145010eaa9dc0dcd1e8a32f66e11930d5f8cd

            SHA512

            2934c4e9491356b11cb900dc1336380892b505c58a813084e9b8d9b8269b5152024a7be1f4db290a7b2436bec898cfca2fc781ac81ef9d093a267551ce4398b3

          • C:\Windows\SysWOW64\installd.exe
            Filesize

            108KB

            MD5

            02f78906fff7b6b8d203153606b00e80

            SHA1

            796f75b800964a9a57ae3d466c0e1a452d1344f8

            SHA256

            6f531caf297849b3179bbdf50d1145010eaa9dc0dcd1e8a32f66e11930d5f8cd

            SHA512

            2934c4e9491356b11cb900dc1336380892b505c58a813084e9b8d9b8269b5152024a7be1f4db290a7b2436bec898cfca2fc781ac81ef9d093a267551ce4398b3

          • C:\Windows\SysWOW64\nethtsrv.exe
            Filesize

            176KB

            MD5

            4c2c97c7283df05f387360dee1ee4bc1

            SHA1

            13a6eeff16445607f9917522413604bfb2d91891

            SHA256

            d0f437da5c9d4bb96839d1fd078a0b151738ab396a22c846fb6d1e6890a8a4d9

            SHA512

            bee2164aaf8f2a9e5ce3bb942ce7fefe6ce87170f4c289b868265d68ff3392fa59260a9d503b77136496c666a72779865fe19c462e5ce56802282b0d46f236bb

          • C:\Windows\SysWOW64\nethtsrv.exe
            Filesize

            176KB

            MD5

            4c2c97c7283df05f387360dee1ee4bc1

            SHA1

            13a6eeff16445607f9917522413604bfb2d91891

            SHA256

            d0f437da5c9d4bb96839d1fd078a0b151738ab396a22c846fb6d1e6890a8a4d9

            SHA512

            bee2164aaf8f2a9e5ce3bb942ce7fefe6ce87170f4c289b868265d68ff3392fa59260a9d503b77136496c666a72779865fe19c462e5ce56802282b0d46f236bb

          • C:\Windows\SysWOW64\nethtsrv.exe
            Filesize

            176KB

            MD5

            4c2c97c7283df05f387360dee1ee4bc1

            SHA1

            13a6eeff16445607f9917522413604bfb2d91891

            SHA256

            d0f437da5c9d4bb96839d1fd078a0b151738ab396a22c846fb6d1e6890a8a4d9

            SHA512

            bee2164aaf8f2a9e5ce3bb942ce7fefe6ce87170f4c289b868265d68ff3392fa59260a9d503b77136496c666a72779865fe19c462e5ce56802282b0d46f236bb

          • C:\Windows\SysWOW64\netupdsrv.exe
            Filesize

            158KB

            MD5

            c886108f891b0523ac40569cecd00884

            SHA1

            9f74e3e4ce079d7a5d1ec6fc90ffe6d4e5fbdf1e

            SHA256

            53f572a56fd5bca4d29309f7b90d20f8610bf16ee9ec14084fc0c009490765a2

            SHA512

            998de5dba1a39e0951bf806feefda2d7b797ef530dcec838aa7a2c0219470501ae523f82254c49afcc582b111a8043ef70849b4c0c1991738283f8c960ff92d7

          • C:\Windows\SysWOW64\netupdsrv.exe
            Filesize

            158KB

            MD5

            c886108f891b0523ac40569cecd00884

            SHA1

            9f74e3e4ce079d7a5d1ec6fc90ffe6d4e5fbdf1e

            SHA256

            53f572a56fd5bca4d29309f7b90d20f8610bf16ee9ec14084fc0c009490765a2

            SHA512

            998de5dba1a39e0951bf806feefda2d7b797ef530dcec838aa7a2c0219470501ae523f82254c49afcc582b111a8043ef70849b4c0c1991738283f8c960ff92d7

          • C:\Windows\SysWOW64\netupdsrv.exe
            Filesize

            158KB

            MD5

            c886108f891b0523ac40569cecd00884

            SHA1

            9f74e3e4ce079d7a5d1ec6fc90ffe6d4e5fbdf1e

            SHA256

            53f572a56fd5bca4d29309f7b90d20f8610bf16ee9ec14084fc0c009490765a2

            SHA512

            998de5dba1a39e0951bf806feefda2d7b797ef530dcec838aa7a2c0219470501ae523f82254c49afcc582b111a8043ef70849b4c0c1991738283f8c960ff92d7

          • memory/392-135-0x0000000000000000-mapping.dmp
          • memory/1944-164-0x0000000000000000-mapping.dmp
          • memory/1992-157-0x0000000000000000-mapping.dmp
          • memory/2108-152-0x0000000000000000-mapping.dmp
          • memory/2184-140-0x0000000000000000-mapping.dmp
          • memory/3572-146-0x0000000000000000-mapping.dmp
          • memory/4148-136-0x0000000000000000-mapping.dmp
          • memory/4244-165-0x0000000000000000-mapping.dmp
          • memory/4592-158-0x0000000000000000-mapping.dmp
          • memory/4860-141-0x0000000000000000-mapping.dmp
          • memory/4864-139-0x0000000000000000-mapping.dmp