Analysis

  • max time kernel
    35s
  • max time network
    49s
  • platform
    windows7_x64
  • resource
    win7-20220812-en
  • resource tags

    arch:x64arch:x86image:win7-20220812-enlocale:en-usos:windows7-x64system
  • submitted
    23-11-2022 10:06

General

  • Target

    fe5b501460175e254f8dd0cbc63ee68bfaa4843467904a640b1d6da0bb5bc572.exe

  • Size

    603KB

  • MD5

    f6e0d1468548c7ae66b5586d83b03d5a

  • SHA1

    ecd302ce6b96daf45b2d68e0b4934df00e9fff5f

  • SHA256

    fe5b501460175e254f8dd0cbc63ee68bfaa4843467904a640b1d6da0bb5bc572

  • SHA512

    7be8c515df4d61be1011b49aac32c2d8e59f41d656ea4c4a1ee7875685b1ec907b94904ac25c28ec906bf118691ffb839e9a12a4047b7b75d9951d6af264fbf7

  • SSDEEP

    12288:lIny5DYTReGmCClBu4HqL0hrGzlUjbHTSdeaD7NHD:RUTRtClBjKwhSee

Score
8/10

Malware Config

Signatures

  • Drops file in Drivers directory 1 IoCs
  • Executes dropped EXE 5 IoCs
  • Loads dropped DLL 13 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.

  • Runs net.exe
  • Suspicious behavior: LoadsDriver 1 IoCs
  • Suspicious use of AdjustPrivilegeToken 1 IoCs
  • Suspicious use of WriteProcessMemory 50 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\fe5b501460175e254f8dd0cbc63ee68bfaa4843467904a640b1d6da0bb5bc572.exe
    "C:\Users\Admin\AppData\Local\Temp\fe5b501460175e254f8dd0cbc63ee68bfaa4843467904a640b1d6da0bb5bc572.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:1016
    • C:\Windows\SysWOW64\net.exe
      net stop nethttpservice
      2⤵
      • Suspicious use of WriteProcessMemory
      PID:1916
      • C:\Windows\SysWOW64\net1.exe
        C:\Windows\system32\net1 stop nethttpservice
        3⤵
          PID:1472
      • C:\Windows\SysWOW64\net.exe
        net stop serviceupdater
        2⤵
        • Suspicious use of WriteProcessMemory
        PID:836
        • C:\Windows\SysWOW64\net1.exe
          C:\Windows\system32\net1 stop serviceupdater
          3⤵
            PID:1452
        • C:\Windows\SysWOW64\installd.exe
          "C:\Windows\system32\installd.exe" nethfdrv
          2⤵
          • Executes dropped EXE
          • Loads dropped DLL
          PID:2044
        • C:\Windows\SysWOW64\nethtsrv.exe
          "C:\Windows\system32\nethtsrv.exe" -nfdi
          2⤵
          • Executes dropped EXE
          • Loads dropped DLL
          PID:1640
        • C:\Windows\SysWOW64\netupdsrv.exe
          "C:\Windows\system32\netupdsrv.exe" -nfdi
          2⤵
          • Executes dropped EXE
          PID:1040
        • C:\Windows\SysWOW64\net.exe
          net start nethttpservice
          2⤵
          • Suspicious use of WriteProcessMemory
          PID:576
          • C:\Windows\SysWOW64\net1.exe
            C:\Windows\system32\net1 start nethttpservice
            3⤵
              PID:1624
          • C:\Windows\SysWOW64\net.exe
            net start serviceupdater
            2⤵
            • Suspicious use of WriteProcessMemory
            PID:904
            • C:\Windows\SysWOW64\net1.exe
              C:\Windows\system32\net1 start serviceupdater
              3⤵
                PID:1116
          • C:\Windows\SysWOW64\nethtsrv.exe
            C:\Windows\SysWOW64\nethtsrv.exe
            1⤵
            • Executes dropped EXE
            • Loads dropped DLL
            • Suspicious use of AdjustPrivilegeToken
            PID:1760
          • C:\Windows\SysWOW64\netupdsrv.exe
            C:\Windows\SysWOW64\netupdsrv.exe
            1⤵
            • Executes dropped EXE
            PID:276

          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:\Windows\SysWOW64\hfnapi.dll
            Filesize

            106KB

            MD5

            37ecd5f9b8a4082668f8e9a00bbf6804

            SHA1

            f2ed4f49fb996868824211bf4b9bd5c9cf66ea8e

            SHA256

            3f1432b6009cd260fd52022dc73c8bd1258bf4a5ce68f98cbf3e28050bda0d5e

            SHA512

            d579214bc29dc66055bcff86031b172c9f3259a597124d3dcc0296fa2e8d699b7739c95f4decc0addb508e92c123285523f5ef42617183277ce6ae5e50472d9f

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

            244KB

            MD5

            c0d6abb34cc7dbe1c83b87421b92a5be

            SHA1

            0fd7697e23f18e12b927ec502150d194d566a9f7

            SHA256

            a26aed1e5c7100490648cd5afcd123062ddd81ab54f3ea774287e4b3a86588d5

            SHA512

            2fe385d1c3f825b3383518199e3e58aaa933dd1edfad4fd641dc0e0a30f50d336632c50729cf24bb2b6fc7bb85afbca57a571d6656c6e446fd8dfa34d9afc479

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

            108KB

            MD5

            ba533e6a16d7098d74374e0839cbfc5b

            SHA1

            38b8c27ca5756f3d366907678119dab79cf60a85

            SHA256

            22f4700841dcf318efcdeb81277ef81e5cb5f0f73d9b929bdb71935305200e0a

            SHA512

            15f310c0fa5f176b52001d03e1a93cda47c85ea7d7781c09f7c9db62070844af2cf0e01829e0f72705682a649a28d80fe6293ae0fb8b8e14d4540384740809a1

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

            176KB

            MD5

            2831aad1dadcdf266d90c330c8b73ed9

            SHA1

            4a120f097b37bd3d7ccb982de571f11c7e5ae83d

            SHA256

            0a54ddfaefaa1f0e64041ce2949e34dfa70c47af8640ac199ad309657ace9151

            SHA512

            7519c8d813f827724aea6098070bd1a60c344ced5dd596013d18325290272f49e4578f88a4a12cf2764256bd99814284a898d5a363bf2f1eb9452dc3c6045073

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

            176KB

            MD5

            2831aad1dadcdf266d90c330c8b73ed9

            SHA1

            4a120f097b37bd3d7ccb982de571f11c7e5ae83d

            SHA256

            0a54ddfaefaa1f0e64041ce2949e34dfa70c47af8640ac199ad309657ace9151

            SHA512

            7519c8d813f827724aea6098070bd1a60c344ced5dd596013d18325290272f49e4578f88a4a12cf2764256bd99814284a898d5a363bf2f1eb9452dc3c6045073

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

            158KB

            MD5

            a3d50c1f10d0f880128eeec4931b236c

            SHA1

            a54e18988241d2ad5508e3d250569caceff4314e

            SHA256

            fd3fc792fca99e6ff357ce743199d6b93cfab6965fadf0825d32333cfd0977bd

            SHA512

            397c6930c7d672d224ec2aa293d20fa32a15b81007fb209721674d3281b98f9dfe5e7a5cdbfdb99f2213efbf1570128054151ce6759b52a3ccbcae4f2286794d

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

            158KB

            MD5

            a3d50c1f10d0f880128eeec4931b236c

            SHA1

            a54e18988241d2ad5508e3d250569caceff4314e

            SHA256

            fd3fc792fca99e6ff357ce743199d6b93cfab6965fadf0825d32333cfd0977bd

            SHA512

            397c6930c7d672d224ec2aa293d20fa32a15b81007fb209721674d3281b98f9dfe5e7a5cdbfdb99f2213efbf1570128054151ce6759b52a3ccbcae4f2286794d

          • \Users\Admin\AppData\Local\Temp\nst1A19.tmp\System.dll
            Filesize

            11KB

            MD5

            c17103ae9072a06da581dec998343fc1

            SHA1

            b72148c6bdfaada8b8c3f950e610ee7cf1da1f8d

            SHA256

            dc58d8ad81cacb0c1ed72e33bff8f23ea40b5252b5bb55d393a0903e6819ae2f

            SHA512

            d32a71aaef18e993f28096d536e41c4d016850721b31171513ce28bbd805a54fd290b7c3e9d935f72e676a1acfb4f0dcc89d95040a0dd29f2b6975855c18986f

          • \Users\Admin\AppData\Local\Temp\nst1A19.tmp\nsExec.dll
            Filesize

            6KB

            MD5

            acc2b699edfea5bf5aae45aba3a41e96

            SHA1

            d2accf4d494e43ceb2cff69abe4dd17147d29cc2

            SHA256

            168a974eaa3f588d759db3f47c1a9fdc3494ba1fa1a73a84e5e3b2a4d58abd7e

            SHA512

            e29ea10ada98c71a18273b04f44f385b120d4e8473e441ce5748cfa44a23648814f2656f429b85440157988c88de776c6ac008dc38bf09cbb746c230a46c69fe

          • \Users\Admin\AppData\Local\Temp\nst1A19.tmp\nsExec.dll
            Filesize

            6KB

            MD5

            acc2b699edfea5bf5aae45aba3a41e96

            SHA1

            d2accf4d494e43ceb2cff69abe4dd17147d29cc2

            SHA256

            168a974eaa3f588d759db3f47c1a9fdc3494ba1fa1a73a84e5e3b2a4d58abd7e

            SHA512

            e29ea10ada98c71a18273b04f44f385b120d4e8473e441ce5748cfa44a23648814f2656f429b85440157988c88de776c6ac008dc38bf09cbb746c230a46c69fe

          • \Users\Admin\AppData\Local\Temp\nst1A19.tmp\nsExec.dll
            Filesize

            6KB

            MD5

            acc2b699edfea5bf5aae45aba3a41e96

            SHA1

            d2accf4d494e43ceb2cff69abe4dd17147d29cc2

            SHA256

            168a974eaa3f588d759db3f47c1a9fdc3494ba1fa1a73a84e5e3b2a4d58abd7e

            SHA512

            e29ea10ada98c71a18273b04f44f385b120d4e8473e441ce5748cfa44a23648814f2656f429b85440157988c88de776c6ac008dc38bf09cbb746c230a46c69fe

          • \Users\Admin\AppData\Local\Temp\nst1A19.tmp\nsExec.dll
            Filesize

            6KB

            MD5

            acc2b699edfea5bf5aae45aba3a41e96

            SHA1

            d2accf4d494e43ceb2cff69abe4dd17147d29cc2

            SHA256

            168a974eaa3f588d759db3f47c1a9fdc3494ba1fa1a73a84e5e3b2a4d58abd7e

            SHA512

            e29ea10ada98c71a18273b04f44f385b120d4e8473e441ce5748cfa44a23648814f2656f429b85440157988c88de776c6ac008dc38bf09cbb746c230a46c69fe

          • \Windows\SysWOW64\hfnapi.dll
            Filesize

            106KB

            MD5

            37ecd5f9b8a4082668f8e9a00bbf6804

            SHA1

            f2ed4f49fb996868824211bf4b9bd5c9cf66ea8e

            SHA256

            3f1432b6009cd260fd52022dc73c8bd1258bf4a5ce68f98cbf3e28050bda0d5e

            SHA512

            d579214bc29dc66055bcff86031b172c9f3259a597124d3dcc0296fa2e8d699b7739c95f4decc0addb508e92c123285523f5ef42617183277ce6ae5e50472d9f

          • \Windows\SysWOW64\hfnapi.dll
            Filesize

            106KB

            MD5

            37ecd5f9b8a4082668f8e9a00bbf6804

            SHA1

            f2ed4f49fb996868824211bf4b9bd5c9cf66ea8e

            SHA256

            3f1432b6009cd260fd52022dc73c8bd1258bf4a5ce68f98cbf3e28050bda0d5e

            SHA512

            d579214bc29dc66055bcff86031b172c9f3259a597124d3dcc0296fa2e8d699b7739c95f4decc0addb508e92c123285523f5ef42617183277ce6ae5e50472d9f

          • \Windows\SysWOW64\hfnapi.dll
            Filesize

            106KB

            MD5

            37ecd5f9b8a4082668f8e9a00bbf6804

            SHA1

            f2ed4f49fb996868824211bf4b9bd5c9cf66ea8e

            SHA256

            3f1432b6009cd260fd52022dc73c8bd1258bf4a5ce68f98cbf3e28050bda0d5e

            SHA512

            d579214bc29dc66055bcff86031b172c9f3259a597124d3dcc0296fa2e8d699b7739c95f4decc0addb508e92c123285523f5ef42617183277ce6ae5e50472d9f

          • \Windows\SysWOW64\hfpapi.dll
            Filesize

            244KB

            MD5

            c0d6abb34cc7dbe1c83b87421b92a5be

            SHA1

            0fd7697e23f18e12b927ec502150d194d566a9f7

            SHA256

            a26aed1e5c7100490648cd5afcd123062ddd81ab54f3ea774287e4b3a86588d5

            SHA512

            2fe385d1c3f825b3383518199e3e58aaa933dd1edfad4fd641dc0e0a30f50d336632c50729cf24bb2b6fc7bb85afbca57a571d6656c6e446fd8dfa34d9afc479

          • \Windows\SysWOW64\hfpapi.dll
            Filesize

            244KB

            MD5

            c0d6abb34cc7dbe1c83b87421b92a5be

            SHA1

            0fd7697e23f18e12b927ec502150d194d566a9f7

            SHA256

            a26aed1e5c7100490648cd5afcd123062ddd81ab54f3ea774287e4b3a86588d5

            SHA512

            2fe385d1c3f825b3383518199e3e58aaa933dd1edfad4fd641dc0e0a30f50d336632c50729cf24bb2b6fc7bb85afbca57a571d6656c6e446fd8dfa34d9afc479

          • \Windows\SysWOW64\installd.exe
            Filesize

            108KB

            MD5

            ba533e6a16d7098d74374e0839cbfc5b

            SHA1

            38b8c27ca5756f3d366907678119dab79cf60a85

            SHA256

            22f4700841dcf318efcdeb81277ef81e5cb5f0f73d9b929bdb71935305200e0a

            SHA512

            15f310c0fa5f176b52001d03e1a93cda47c85ea7d7781c09f7c9db62070844af2cf0e01829e0f72705682a649a28d80fe6293ae0fb8b8e14d4540384740809a1

          • \Windows\SysWOW64\nethtsrv.exe
            Filesize

            176KB

            MD5

            2831aad1dadcdf266d90c330c8b73ed9

            SHA1

            4a120f097b37bd3d7ccb982de571f11c7e5ae83d

            SHA256

            0a54ddfaefaa1f0e64041ce2949e34dfa70c47af8640ac199ad309657ace9151

            SHA512

            7519c8d813f827724aea6098070bd1a60c344ced5dd596013d18325290272f49e4578f88a4a12cf2764256bd99814284a898d5a363bf2f1eb9452dc3c6045073

          • \Windows\SysWOW64\netupdsrv.exe
            Filesize

            158KB

            MD5

            a3d50c1f10d0f880128eeec4931b236c

            SHA1

            a54e18988241d2ad5508e3d250569caceff4314e

            SHA256

            fd3fc792fca99e6ff357ce743199d6b93cfab6965fadf0825d32333cfd0977bd

            SHA512

            397c6930c7d672d224ec2aa293d20fa32a15b81007fb209721674d3281b98f9dfe5e7a5cdbfdb99f2213efbf1570128054151ce6759b52a3ccbcae4f2286794d

          • memory/576-81-0x0000000000000000-mapping.dmp
          • memory/836-61-0x0000000000000000-mapping.dmp
          • memory/904-87-0x0000000000000000-mapping.dmp
          • memory/1016-69-0x0000000000360000-0x00000000007BE000-memory.dmp
            Filesize

            4.4MB

          • memory/1016-54-0x00000000756B1000-0x00000000756B3000-memory.dmp
            Filesize

            8KB

          • memory/1016-91-0x0000000000360000-0x00000000007BE000-memory.dmp
            Filesize

            4.4MB

          • memory/1016-55-0x0000000000360000-0x00000000007BE000-memory.dmp
            Filesize

            4.4MB

          • memory/1040-77-0x0000000000000000-mapping.dmp
          • memory/1116-88-0x0000000000000000-mapping.dmp
          • memory/1452-62-0x0000000000000000-mapping.dmp
          • memory/1472-59-0x0000000000000000-mapping.dmp
          • memory/1624-82-0x0000000000000000-mapping.dmp
          • memory/1640-71-0x0000000000000000-mapping.dmp
          • memory/1916-58-0x0000000000000000-mapping.dmp
          • memory/2044-64-0x0000000000000000-mapping.dmp