Analysis

  • max time kernel
    140s
  • max time network
    150s
  • 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 10:24

General

  • Target

    63c677ec0edc10ea528d3acfadd0e052df06aefd99590bdd1d6ff91e35af424c.exe

  • Size

    599KB

  • MD5

    e022b36bc3d690d7f9870ed7162db257

  • SHA1

    4af5acb293d3ab6432941d425e36d5602558663a

  • SHA256

    63c677ec0edc10ea528d3acfadd0e052df06aefd99590bdd1d6ff91e35af424c

  • SHA512

    55e0a0c6e0e998b3d55bb80c98366167221ff96e9f8324e014c77e9dfb85ab8a07d02cfc7c5ca8346e4f659ad009e12ea82c463e258b5869fae20148451b62e4

  • SSDEEP

    12288:4Iny5DYTYIoI+rP5zxXqY//h2tdedUwXdC92zhjvtUseTmE:WUTYnI+z5JqEhKGC92I

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\63c677ec0edc10ea528d3acfadd0e052df06aefd99590bdd1d6ff91e35af424c.exe
    "C:\Users\Admin\AppData\Local\Temp\63c677ec0edc10ea528d3acfadd0e052df06aefd99590bdd1d6ff91e35af424c.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:3460
    • C:\Windows\SysWOW64\net.exe
      net stop nethttpservice
      2⤵
      • Suspicious use of WriteProcessMemory
      PID:4376
      • C:\Windows\SysWOW64\net1.exe
        C:\Windows\system32\net1 stop nethttpservice
        3⤵
          PID:4052
      • C:\Windows\SysWOW64\net.exe
        net stop serviceupdater
        2⤵
        • Suspicious use of WriteProcessMemory
        PID:2424
        • C:\Windows\SysWOW64\net1.exe
          C:\Windows\system32\net1 stop serviceupdater
          3⤵
            PID:1088
        • C:\Windows\SysWOW64\installd.exe
          "C:\Windows\system32\installd.exe" nethfdrv
          2⤵
          • Executes dropped EXE
          • Loads dropped DLL
          PID:4920
        • C:\Windows\SysWOW64\nethtsrv.exe
          "C:\Windows\system32\nethtsrv.exe" -nfdi
          2⤵
          • Executes dropped EXE
          • Loads dropped DLL
          PID:4824
        • C:\Windows\SysWOW64\netupdsrv.exe
          "C:\Windows\system32\netupdsrv.exe" -nfdi
          2⤵
          • Executes dropped EXE
          PID:1664
        • C:\Windows\SysWOW64\net.exe
          net start nethttpservice
          2⤵
          • Suspicious use of WriteProcessMemory
          PID:2716
          • C:\Windows\SysWOW64\net1.exe
            C:\Windows\system32\net1 start nethttpservice
            3⤵
              PID:1156
          • C:\Windows\SysWOW64\net.exe
            net start serviceupdater
            2⤵
            • Suspicious use of WriteProcessMemory
            PID:1232
            • C:\Windows\SysWOW64\net1.exe
              C:\Windows\system32\net1 start serviceupdater
              3⤵
                PID:244
          • 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:2536
          • C:\Windows\SysWOW64\netupdsrv.exe
            C:\Windows\SysWOW64\netupdsrv.exe
            1⤵
            • Executes dropped EXE
            PID:32

          Network

          MITRE ATT&CK Enterprise v6

          Replay Monitor

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          Downloads

          • C:\Users\Admin\AppData\Local\Temp\nsuFAE1.tmp\System.dll

            Filesize

            11KB

            MD5

            c17103ae9072a06da581dec998343fc1

            SHA1

            b72148c6bdfaada8b8c3f950e610ee7cf1da1f8d

            SHA256

            dc58d8ad81cacb0c1ed72e33bff8f23ea40b5252b5bb55d393a0903e6819ae2f

            SHA512

            d32a71aaef18e993f28096d536e41c4d016850721b31171513ce28bbd805a54fd290b7c3e9d935f72e676a1acfb4f0dcc89d95040a0dd29f2b6975855c18986f

          • C:\Users\Admin\AppData\Local\Temp\nsuFAE1.tmp\nsExec.dll

            Filesize

            6KB

            MD5

            acc2b699edfea5bf5aae45aba3a41e96

            SHA1

            d2accf4d494e43ceb2cff69abe4dd17147d29cc2

            SHA256

            168a974eaa3f588d759db3f47c1a9fdc3494ba1fa1a73a84e5e3b2a4d58abd7e

            SHA512

            e29ea10ada98c71a18273b04f44f385b120d4e8473e441ce5748cfa44a23648814f2656f429b85440157988c88de776c6ac008dc38bf09cbb746c230a46c69fe

          • C:\Users\Admin\AppData\Local\Temp\nsuFAE1.tmp\nsExec.dll

            Filesize

            6KB

            MD5

            acc2b699edfea5bf5aae45aba3a41e96

            SHA1

            d2accf4d494e43ceb2cff69abe4dd17147d29cc2

            SHA256

            168a974eaa3f588d759db3f47c1a9fdc3494ba1fa1a73a84e5e3b2a4d58abd7e

            SHA512

            e29ea10ada98c71a18273b04f44f385b120d4e8473e441ce5748cfa44a23648814f2656f429b85440157988c88de776c6ac008dc38bf09cbb746c230a46c69fe

          • C:\Users\Admin\AppData\Local\Temp\nsuFAE1.tmp\nsExec.dll

            Filesize

            6KB

            MD5

            acc2b699edfea5bf5aae45aba3a41e96

            SHA1

            d2accf4d494e43ceb2cff69abe4dd17147d29cc2

            SHA256

            168a974eaa3f588d759db3f47c1a9fdc3494ba1fa1a73a84e5e3b2a4d58abd7e

            SHA512

            e29ea10ada98c71a18273b04f44f385b120d4e8473e441ce5748cfa44a23648814f2656f429b85440157988c88de776c6ac008dc38bf09cbb746c230a46c69fe

          • C:\Users\Admin\AppData\Local\Temp\nsuFAE1.tmp\nsExec.dll

            Filesize

            6KB

            MD5

            acc2b699edfea5bf5aae45aba3a41e96

            SHA1

            d2accf4d494e43ceb2cff69abe4dd17147d29cc2

            SHA256

            168a974eaa3f588d759db3f47c1a9fdc3494ba1fa1a73a84e5e3b2a4d58abd7e

            SHA512

            e29ea10ada98c71a18273b04f44f385b120d4e8473e441ce5748cfa44a23648814f2656f429b85440157988c88de776c6ac008dc38bf09cbb746c230a46c69fe

          • C:\Users\Admin\AppData\Local\Temp\nsuFAE1.tmp\nsExec.dll

            Filesize

            6KB

            MD5

            acc2b699edfea5bf5aae45aba3a41e96

            SHA1

            d2accf4d494e43ceb2cff69abe4dd17147d29cc2

            SHA256

            168a974eaa3f588d759db3f47c1a9fdc3494ba1fa1a73a84e5e3b2a4d58abd7e

            SHA512

            e29ea10ada98c71a18273b04f44f385b120d4e8473e441ce5748cfa44a23648814f2656f429b85440157988c88de776c6ac008dc38bf09cbb746c230a46c69fe

          • C:\Users\Admin\AppData\Local\Temp\nsuFAE1.tmp\nsExec.dll

            Filesize

            6KB

            MD5

            acc2b699edfea5bf5aae45aba3a41e96

            SHA1

            d2accf4d494e43ceb2cff69abe4dd17147d29cc2

            SHA256

            168a974eaa3f588d759db3f47c1a9fdc3494ba1fa1a73a84e5e3b2a4d58abd7e

            SHA512

            e29ea10ada98c71a18273b04f44f385b120d4e8473e441ce5748cfa44a23648814f2656f429b85440157988c88de776c6ac008dc38bf09cbb746c230a46c69fe

          • C:\Users\Admin\AppData\Local\Temp\nsuFAE1.tmp\nsExec.dll

            Filesize

            6KB

            MD5

            acc2b699edfea5bf5aae45aba3a41e96

            SHA1

            d2accf4d494e43ceb2cff69abe4dd17147d29cc2

            SHA256

            168a974eaa3f588d759db3f47c1a9fdc3494ba1fa1a73a84e5e3b2a4d58abd7e

            SHA512

            e29ea10ada98c71a18273b04f44f385b120d4e8473e441ce5748cfa44a23648814f2656f429b85440157988c88de776c6ac008dc38bf09cbb746c230a46c69fe

          • C:\Users\Admin\AppData\Local\Temp\nsuFAE1.tmp\nsExec.dll

            Filesize

            6KB

            MD5

            acc2b699edfea5bf5aae45aba3a41e96

            SHA1

            d2accf4d494e43ceb2cff69abe4dd17147d29cc2

            SHA256

            168a974eaa3f588d759db3f47c1a9fdc3494ba1fa1a73a84e5e3b2a4d58abd7e

            SHA512

            e29ea10ada98c71a18273b04f44f385b120d4e8473e441ce5748cfa44a23648814f2656f429b85440157988c88de776c6ac008dc38bf09cbb746c230a46c69fe

          • C:\Windows\SysWOW64\hfnapi.dll

            Filesize

            106KB

            MD5

            daa984c3162adfda3a94dbf1c7bc7955

            SHA1

            914b896bd1cf8f7a67aa875763be271ffe33ce74

            SHA256

            33aff419382a478d3f9f2e5c667cdd53b5650c7c2dbd19d977d003d8408b9ffa

            SHA512

            ae9bd23a919055b703e8efb14c7d8f5c0861f314e03bc6973930ea342abc74ef3b2d4a920419a31ef7b926deccabf26d917273d6aed5fabeba8108bf11ac5f4b

          • C:\Windows\SysWOW64\hfnapi.dll

            Filesize

            106KB

            MD5

            daa984c3162adfda3a94dbf1c7bc7955

            SHA1

            914b896bd1cf8f7a67aa875763be271ffe33ce74

            SHA256

            33aff419382a478d3f9f2e5c667cdd53b5650c7c2dbd19d977d003d8408b9ffa

            SHA512

            ae9bd23a919055b703e8efb14c7d8f5c0861f314e03bc6973930ea342abc74ef3b2d4a920419a31ef7b926deccabf26d917273d6aed5fabeba8108bf11ac5f4b

          • C:\Windows\SysWOW64\hfnapi.dll

            Filesize

            106KB

            MD5

            daa984c3162adfda3a94dbf1c7bc7955

            SHA1

            914b896bd1cf8f7a67aa875763be271ffe33ce74

            SHA256

            33aff419382a478d3f9f2e5c667cdd53b5650c7c2dbd19d977d003d8408b9ffa

            SHA512

            ae9bd23a919055b703e8efb14c7d8f5c0861f314e03bc6973930ea342abc74ef3b2d4a920419a31ef7b926deccabf26d917273d6aed5fabeba8108bf11ac5f4b

          • C:\Windows\SysWOW64\hfnapi.dll

            Filesize

            106KB

            MD5

            daa984c3162adfda3a94dbf1c7bc7955

            SHA1

            914b896bd1cf8f7a67aa875763be271ffe33ce74

            SHA256

            33aff419382a478d3f9f2e5c667cdd53b5650c7c2dbd19d977d003d8408b9ffa

            SHA512

            ae9bd23a919055b703e8efb14c7d8f5c0861f314e03bc6973930ea342abc74ef3b2d4a920419a31ef7b926deccabf26d917273d6aed5fabeba8108bf11ac5f4b

          • C:\Windows\SysWOW64\hfpapi.dll

            Filesize

            244KB

            MD5

            c50884e9cc612e5bd11435c46d6fda2e

            SHA1

            635939ad3a9dd8b8105c62d4585bada7c24c4f3b

            SHA256

            10906e75161e2385c0ea15413701701636a98ebda713fcecc3b736ec303e0ccd

            SHA512

            ac7cdc1ce41c161514dafa24eb3db51d436d9e9fb6f7aaa50b84c4cf7339b1a6295d6b9f93b0f02822b1b047768ed0a6b14ce61ec16edb5840b67df10b942aa1

          • C:\Windows\SysWOW64\hfpapi.dll

            Filesize

            244KB

            MD5

            c50884e9cc612e5bd11435c46d6fda2e

            SHA1

            635939ad3a9dd8b8105c62d4585bada7c24c4f3b

            SHA256

            10906e75161e2385c0ea15413701701636a98ebda713fcecc3b736ec303e0ccd

            SHA512

            ac7cdc1ce41c161514dafa24eb3db51d436d9e9fb6f7aaa50b84c4cf7339b1a6295d6b9f93b0f02822b1b047768ed0a6b14ce61ec16edb5840b67df10b942aa1

          • C:\Windows\SysWOW64\hfpapi.dll

            Filesize

            244KB

            MD5

            c50884e9cc612e5bd11435c46d6fda2e

            SHA1

            635939ad3a9dd8b8105c62d4585bada7c24c4f3b

            SHA256

            10906e75161e2385c0ea15413701701636a98ebda713fcecc3b736ec303e0ccd

            SHA512

            ac7cdc1ce41c161514dafa24eb3db51d436d9e9fb6f7aaa50b84c4cf7339b1a6295d6b9f93b0f02822b1b047768ed0a6b14ce61ec16edb5840b67df10b942aa1

          • C:\Windows\SysWOW64\installd.exe

            Filesize

            108KB

            MD5

            b9005128a5747239b4c7e8b1303a733a

            SHA1

            7fe53ec15700e8955dad6af3d620c7dcb16dc1ac

            SHA256

            db52be6253e4d38e3a09108d2d2cb4cfe23b322e2c4d034f3d8e3cc817b9d1d3

            SHA512

            b39239af151f756ea68a88b7529c35792069b58154102d6f6fa38becc96fc7cce824efa2f04928881b48b1f51502b181824d8b59fa96fecbed662cb627b3a35f

          • C:\Windows\SysWOW64\installd.exe

            Filesize

            108KB

            MD5

            b9005128a5747239b4c7e8b1303a733a

            SHA1

            7fe53ec15700e8955dad6af3d620c7dcb16dc1ac

            SHA256

            db52be6253e4d38e3a09108d2d2cb4cfe23b322e2c4d034f3d8e3cc817b9d1d3

            SHA512

            b39239af151f756ea68a88b7529c35792069b58154102d6f6fa38becc96fc7cce824efa2f04928881b48b1f51502b181824d8b59fa96fecbed662cb627b3a35f

          • C:\Windows\SysWOW64\nethtsrv.exe

            Filesize

            176KB

            MD5

            f025ac30694fc821f755496eede6e20a

            SHA1

            26def09f66052f53f98cbeff6a5623f05a5fd507

            SHA256

            299fe7fd1e585afdd17a9a54c1e0643c2bf1e4aa01db1dad46c31265ffc81938

            SHA512

            33d4c3065e46d612efd75f962442d07456aee9b7983938fb5f0678fe142a150bffc9b8d00714c2ac657222d114f10c43a394a9b2f291454885863feeee472ac9

          • C:\Windows\SysWOW64\nethtsrv.exe

            Filesize

            176KB

            MD5

            f025ac30694fc821f755496eede6e20a

            SHA1

            26def09f66052f53f98cbeff6a5623f05a5fd507

            SHA256

            299fe7fd1e585afdd17a9a54c1e0643c2bf1e4aa01db1dad46c31265ffc81938

            SHA512

            33d4c3065e46d612efd75f962442d07456aee9b7983938fb5f0678fe142a150bffc9b8d00714c2ac657222d114f10c43a394a9b2f291454885863feeee472ac9

          • C:\Windows\SysWOW64\nethtsrv.exe

            Filesize

            176KB

            MD5

            f025ac30694fc821f755496eede6e20a

            SHA1

            26def09f66052f53f98cbeff6a5623f05a5fd507

            SHA256

            299fe7fd1e585afdd17a9a54c1e0643c2bf1e4aa01db1dad46c31265ffc81938

            SHA512

            33d4c3065e46d612efd75f962442d07456aee9b7983938fb5f0678fe142a150bffc9b8d00714c2ac657222d114f10c43a394a9b2f291454885863feeee472ac9

          • C:\Windows\SysWOW64\netupdsrv.exe

            Filesize

            159KB

            MD5

            c8fbaca08f845d03719beea198029986

            SHA1

            c2705cb643b3ded925c6532acf05f3914aad6cf5

            SHA256

            2867ec3f12bf5753104aa5f4c7c878748feeed9257415fbe77c972f9725bfd69

            SHA512

            e5ef3192519e33dbbdbb25b57c8a2074b1eb03d6efe5fbbdb45576e457bb073d71f27c625d5f2f909322d482a8ed4249596fd74e5ade2ba6bb669c183c5446e2

          • C:\Windows\SysWOW64\netupdsrv.exe

            Filesize

            159KB

            MD5

            c8fbaca08f845d03719beea198029986

            SHA1

            c2705cb643b3ded925c6532acf05f3914aad6cf5

            SHA256

            2867ec3f12bf5753104aa5f4c7c878748feeed9257415fbe77c972f9725bfd69

            SHA512

            e5ef3192519e33dbbdbb25b57c8a2074b1eb03d6efe5fbbdb45576e457bb073d71f27c625d5f2f909322d482a8ed4249596fd74e5ade2ba6bb669c183c5446e2

          • C:\Windows\SysWOW64\netupdsrv.exe

            Filesize

            159KB

            MD5

            c8fbaca08f845d03719beea198029986

            SHA1

            c2705cb643b3ded925c6532acf05f3914aad6cf5

            SHA256

            2867ec3f12bf5753104aa5f4c7c878748feeed9257415fbe77c972f9725bfd69

            SHA512

            e5ef3192519e33dbbdbb25b57c8a2074b1eb03d6efe5fbbdb45576e457bb073d71f27c625d5f2f909322d482a8ed4249596fd74e5ade2ba6bb669c183c5446e2

          • memory/244-167-0x0000000000000000-mapping.dmp

          • memory/1088-141-0x0000000000000000-mapping.dmp

          • memory/1156-160-0x0000000000000000-mapping.dmp

          • memory/1232-166-0x0000000000000000-mapping.dmp

          • memory/1664-153-0x0000000000000000-mapping.dmp

          • memory/2424-140-0x0000000000000000-mapping.dmp

          • memory/2716-159-0x0000000000000000-mapping.dmp

          • memory/3460-156-0x0000000000360000-0x00000000007BE000-memory.dmp

            Filesize

            4.4MB

          • memory/3460-132-0x0000000000360000-0x00000000007BE000-memory.dmp

            Filesize

            4.4MB

          • memory/3460-169-0x0000000000360000-0x00000000007BE000-memory.dmp

            Filesize

            4.4MB

          • memory/4052-137-0x0000000000000000-mapping.dmp

          • memory/4376-136-0x0000000000000000-mapping.dmp

          • memory/4824-147-0x0000000000000000-mapping.dmp

          • memory/4920-142-0x0000000000000000-mapping.dmp