Analysis

  • max time kernel
    182s
  • 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 10:21

General

  • Target

    7a347c15ac903d83b0ac253d44d975f7d545ef70beebc7f9d137656ccc4e6eb4.exe

  • Size

    602KB

  • MD5

    c3205ec64c7bea35476ca308a8656356

  • SHA1

    b16a21e6f4ac1dd73ac0cc1c5fff1cb9d24b8ffe

  • SHA256

    7a347c15ac903d83b0ac253d44d975f7d545ef70beebc7f9d137656ccc4e6eb4

  • SHA512

    f1f0779688e3aee8db7e2193610730e6097b0606d7bc501b43da13a374a3b651d5c20029d0a19b5646e1cb570b812b62785c1122b99662c02fb8619e39587171

  • SSDEEP

    12288:tIny5DYTefDewYEtPv2KDymTwyBLWktr495M3SBlx5tyehMauaXEb:5UTjaPvpD5c0LW/DM3SBP5tyeh6QEb

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\7a347c15ac903d83b0ac253d44d975f7d545ef70beebc7f9d137656ccc4e6eb4.exe
    "C:\Users\Admin\AppData\Local\Temp\7a347c15ac903d83b0ac253d44d975f7d545ef70beebc7f9d137656ccc4e6eb4.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:3132
    • C:\Windows\SysWOW64\net.exe
      net stop nethttpservice
      2⤵
      • Suspicious use of WriteProcessMemory
      PID:2612
      • C:\Windows\SysWOW64\net1.exe
        C:\Windows\system32\net1 stop nethttpservice
        3⤵
          PID:2956
      • C:\Windows\SysWOW64\net.exe
        net stop serviceupdater
        2⤵
        • Suspicious use of WriteProcessMemory
        PID:3056
        • C:\Windows\SysWOW64\net1.exe
          C:\Windows\system32\net1 stop serviceupdater
          3⤵
            PID:2052
        • C:\Windows\SysWOW64\installd.exe
          "C:\Windows\system32\installd.exe" nethfdrv
          2⤵
          • Executes dropped EXE
          • Loads dropped DLL
          PID:1580
        • C:\Windows\SysWOW64\nethtsrv.exe
          "C:\Windows\system32\nethtsrv.exe" -nfdi
          2⤵
          • Executes dropped EXE
          • Loads dropped DLL
          PID:3592
        • C:\Windows\SysWOW64\netupdsrv.exe
          "C:\Windows\system32\netupdsrv.exe" -nfdi
          2⤵
          • Executes dropped EXE
          PID:3772
        • C:\Windows\SysWOW64\net.exe
          net start nethttpservice
          2⤵
          • Suspicious use of WriteProcessMemory
          PID:4320
          • C:\Windows\SysWOW64\net1.exe
            C:\Windows\system32\net1 start nethttpservice
            3⤵
              PID:4904
          • C:\Windows\SysWOW64\net.exe
            net start serviceupdater
            2⤵
            • Suspicious use of WriteProcessMemory
            PID:1544
            • C:\Windows\SysWOW64\net1.exe
              C:\Windows\system32\net1 start serviceupdater
              3⤵
                PID:404
          • 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:1868
          • C:\Windows\SysWOW64\netupdsrv.exe
            C:\Windows\SysWOW64\netupdsrv.exe
            1⤵
            • Executes dropped EXE
            PID:2884

          Network

          MITRE ATT&CK Enterprise v6

          Replay Monitor

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          Downloads

          • C:\Users\Admin\AppData\Local\Temp\nsmC66.tmp\System.dll

            Filesize

            11KB

            MD5

            c17103ae9072a06da581dec998343fc1

            SHA1

            b72148c6bdfaada8b8c3f950e610ee7cf1da1f8d

            SHA256

            dc58d8ad81cacb0c1ed72e33bff8f23ea40b5252b5bb55d393a0903e6819ae2f

            SHA512

            d32a71aaef18e993f28096d536e41c4d016850721b31171513ce28bbd805a54fd290b7c3e9d935f72e676a1acfb4f0dcc89d95040a0dd29f2b6975855c18986f

          • C:\Users\Admin\AppData\Local\Temp\nsmC66.tmp\nsExec.dll

            Filesize

            6KB

            MD5

            acc2b699edfea5bf5aae45aba3a41e96

            SHA1

            d2accf4d494e43ceb2cff69abe4dd17147d29cc2

            SHA256

            168a974eaa3f588d759db3f47c1a9fdc3494ba1fa1a73a84e5e3b2a4d58abd7e

            SHA512

            e29ea10ada98c71a18273b04f44f385b120d4e8473e441ce5748cfa44a23648814f2656f429b85440157988c88de776c6ac008dc38bf09cbb746c230a46c69fe

          • C:\Users\Admin\AppData\Local\Temp\nsmC66.tmp\nsExec.dll

            Filesize

            6KB

            MD5

            acc2b699edfea5bf5aae45aba3a41e96

            SHA1

            d2accf4d494e43ceb2cff69abe4dd17147d29cc2

            SHA256

            168a974eaa3f588d759db3f47c1a9fdc3494ba1fa1a73a84e5e3b2a4d58abd7e

            SHA512

            e29ea10ada98c71a18273b04f44f385b120d4e8473e441ce5748cfa44a23648814f2656f429b85440157988c88de776c6ac008dc38bf09cbb746c230a46c69fe

          • C:\Users\Admin\AppData\Local\Temp\nsmC66.tmp\nsExec.dll

            Filesize

            6KB

            MD5

            acc2b699edfea5bf5aae45aba3a41e96

            SHA1

            d2accf4d494e43ceb2cff69abe4dd17147d29cc2

            SHA256

            168a974eaa3f588d759db3f47c1a9fdc3494ba1fa1a73a84e5e3b2a4d58abd7e

            SHA512

            e29ea10ada98c71a18273b04f44f385b120d4e8473e441ce5748cfa44a23648814f2656f429b85440157988c88de776c6ac008dc38bf09cbb746c230a46c69fe

          • C:\Users\Admin\AppData\Local\Temp\nsmC66.tmp\nsExec.dll

            Filesize

            6KB

            MD5

            acc2b699edfea5bf5aae45aba3a41e96

            SHA1

            d2accf4d494e43ceb2cff69abe4dd17147d29cc2

            SHA256

            168a974eaa3f588d759db3f47c1a9fdc3494ba1fa1a73a84e5e3b2a4d58abd7e

            SHA512

            e29ea10ada98c71a18273b04f44f385b120d4e8473e441ce5748cfa44a23648814f2656f429b85440157988c88de776c6ac008dc38bf09cbb746c230a46c69fe

          • C:\Users\Admin\AppData\Local\Temp\nsmC66.tmp\nsExec.dll

            Filesize

            6KB

            MD5

            acc2b699edfea5bf5aae45aba3a41e96

            SHA1

            d2accf4d494e43ceb2cff69abe4dd17147d29cc2

            SHA256

            168a974eaa3f588d759db3f47c1a9fdc3494ba1fa1a73a84e5e3b2a4d58abd7e

            SHA512

            e29ea10ada98c71a18273b04f44f385b120d4e8473e441ce5748cfa44a23648814f2656f429b85440157988c88de776c6ac008dc38bf09cbb746c230a46c69fe

          • C:\Users\Admin\AppData\Local\Temp\nsmC66.tmp\nsExec.dll

            Filesize

            6KB

            MD5

            acc2b699edfea5bf5aae45aba3a41e96

            SHA1

            d2accf4d494e43ceb2cff69abe4dd17147d29cc2

            SHA256

            168a974eaa3f588d759db3f47c1a9fdc3494ba1fa1a73a84e5e3b2a4d58abd7e

            SHA512

            e29ea10ada98c71a18273b04f44f385b120d4e8473e441ce5748cfa44a23648814f2656f429b85440157988c88de776c6ac008dc38bf09cbb746c230a46c69fe

          • C:\Users\Admin\AppData\Local\Temp\nsmC66.tmp\nsExec.dll

            Filesize

            6KB

            MD5

            acc2b699edfea5bf5aae45aba3a41e96

            SHA1

            d2accf4d494e43ceb2cff69abe4dd17147d29cc2

            SHA256

            168a974eaa3f588d759db3f47c1a9fdc3494ba1fa1a73a84e5e3b2a4d58abd7e

            SHA512

            e29ea10ada98c71a18273b04f44f385b120d4e8473e441ce5748cfa44a23648814f2656f429b85440157988c88de776c6ac008dc38bf09cbb746c230a46c69fe

          • C:\Users\Admin\AppData\Local\Temp\nsmC66.tmp\nsExec.dll

            Filesize

            6KB

            MD5

            acc2b699edfea5bf5aae45aba3a41e96

            SHA1

            d2accf4d494e43ceb2cff69abe4dd17147d29cc2

            SHA256

            168a974eaa3f588d759db3f47c1a9fdc3494ba1fa1a73a84e5e3b2a4d58abd7e

            SHA512

            e29ea10ada98c71a18273b04f44f385b120d4e8473e441ce5748cfa44a23648814f2656f429b85440157988c88de776c6ac008dc38bf09cbb746c230a46c69fe

          • C:\Windows\SysWOW64\hfnapi.dll

            Filesize

            106KB

            MD5

            5d13420e8a33a341e1d8576545426bf5

            SHA1

            103a7f621cb2ca2a5b32b973013bb9ddc318fc06

            SHA256

            8e763dd36a0605a869b0e0d9a1a6736a89797d6bec03ba6cb12e8a00c7e6a2a7

            SHA512

            ec73c88bd76f71db69ddadf80e13df5ef1165d69dffc8545898c4a3766a46c97376fd582af35d3606ea9d24d6a9fe31be14a72a19ee5f054caa555d4121d27ff

          • C:\Windows\SysWOW64\hfnapi.dll

            Filesize

            106KB

            MD5

            5d13420e8a33a341e1d8576545426bf5

            SHA1

            103a7f621cb2ca2a5b32b973013bb9ddc318fc06

            SHA256

            8e763dd36a0605a869b0e0d9a1a6736a89797d6bec03ba6cb12e8a00c7e6a2a7

            SHA512

            ec73c88bd76f71db69ddadf80e13df5ef1165d69dffc8545898c4a3766a46c97376fd582af35d3606ea9d24d6a9fe31be14a72a19ee5f054caa555d4121d27ff

          • C:\Windows\SysWOW64\hfnapi.dll

            Filesize

            106KB

            MD5

            5d13420e8a33a341e1d8576545426bf5

            SHA1

            103a7f621cb2ca2a5b32b973013bb9ddc318fc06

            SHA256

            8e763dd36a0605a869b0e0d9a1a6736a89797d6bec03ba6cb12e8a00c7e6a2a7

            SHA512

            ec73c88bd76f71db69ddadf80e13df5ef1165d69dffc8545898c4a3766a46c97376fd582af35d3606ea9d24d6a9fe31be14a72a19ee5f054caa555d4121d27ff

          • C:\Windows\SysWOW64\hfnapi.dll

            Filesize

            106KB

            MD5

            5d13420e8a33a341e1d8576545426bf5

            SHA1

            103a7f621cb2ca2a5b32b973013bb9ddc318fc06

            SHA256

            8e763dd36a0605a869b0e0d9a1a6736a89797d6bec03ba6cb12e8a00c7e6a2a7

            SHA512

            ec73c88bd76f71db69ddadf80e13df5ef1165d69dffc8545898c4a3766a46c97376fd582af35d3606ea9d24d6a9fe31be14a72a19ee5f054caa555d4121d27ff

          • C:\Windows\SysWOW64\hfpapi.dll

            Filesize

            243KB

            MD5

            298f6c0476183082c02f13dc983d8f23

            SHA1

            e2eec5d64466ade9bc9770e7a8622e685910d42e

            SHA256

            1a68bbefde01c8253e6c103e61e69b913110f5d455bed353e6509b15ff6f2940

            SHA512

            33736616c0156f76e163d8941146b73f29aaec2854d2a85a42fbf615d99bc370e54afd02d26516d47c6a4d79948e483b9a419707d42b672c673c68d22f0d0acc

          • C:\Windows\SysWOW64\hfpapi.dll

            Filesize

            243KB

            MD5

            298f6c0476183082c02f13dc983d8f23

            SHA1

            e2eec5d64466ade9bc9770e7a8622e685910d42e

            SHA256

            1a68bbefde01c8253e6c103e61e69b913110f5d455bed353e6509b15ff6f2940

            SHA512

            33736616c0156f76e163d8941146b73f29aaec2854d2a85a42fbf615d99bc370e54afd02d26516d47c6a4d79948e483b9a419707d42b672c673c68d22f0d0acc

          • C:\Windows\SysWOW64\hfpapi.dll

            Filesize

            243KB

            MD5

            298f6c0476183082c02f13dc983d8f23

            SHA1

            e2eec5d64466ade9bc9770e7a8622e685910d42e

            SHA256

            1a68bbefde01c8253e6c103e61e69b913110f5d455bed353e6509b15ff6f2940

            SHA512

            33736616c0156f76e163d8941146b73f29aaec2854d2a85a42fbf615d99bc370e54afd02d26516d47c6a4d79948e483b9a419707d42b672c673c68d22f0d0acc

          • C:\Windows\SysWOW64\installd.exe

            Filesize

            108KB

            MD5

            2c59402f6d762d227b3ab590bb1f242c

            SHA1

            609a0776a437d62615cc743eb3e964a4139c4ae2

            SHA256

            e9e53bae66b8bca4e688dde1c058cad385cbc08025e677d5f997f11fceda7786

            SHA512

            c609ecbf70a374dd60634144cce98c15fa67f99a4b1898cd6a9966ac328b3eb16d345baf15ed9f54a2bc5902fac15088268476e9d133201a36904d2c6016583a

          • C:\Windows\SysWOW64\installd.exe

            Filesize

            108KB

            MD5

            2c59402f6d762d227b3ab590bb1f242c

            SHA1

            609a0776a437d62615cc743eb3e964a4139c4ae2

            SHA256

            e9e53bae66b8bca4e688dde1c058cad385cbc08025e677d5f997f11fceda7786

            SHA512

            c609ecbf70a374dd60634144cce98c15fa67f99a4b1898cd6a9966ac328b3eb16d345baf15ed9f54a2bc5902fac15088268476e9d133201a36904d2c6016583a

          • C:\Windows\SysWOW64\nethtsrv.exe

            Filesize

            176KB

            MD5

            7978510c5970d1f1d12b81c5a25ac3fe

            SHA1

            43af21c84053ac839b2b45f2d7b3fd5cf1e6ab5e

            SHA256

            a8814c3d8c9f4d3a0b5b87fe8a34607efe8b29d55e7b080b78978e9e3e394df2

            SHA512

            3997f5203d0f3f5943c6aef9f5e1eba0c3da46709b1d5cd30b96ccfde30bb53e767b6cd010a3b4e3d559ea35d1460504bc71bd980128a5ea28576c8f7db4a901

          • C:\Windows\SysWOW64\nethtsrv.exe

            Filesize

            176KB

            MD5

            7978510c5970d1f1d12b81c5a25ac3fe

            SHA1

            43af21c84053ac839b2b45f2d7b3fd5cf1e6ab5e

            SHA256

            a8814c3d8c9f4d3a0b5b87fe8a34607efe8b29d55e7b080b78978e9e3e394df2

            SHA512

            3997f5203d0f3f5943c6aef9f5e1eba0c3da46709b1d5cd30b96ccfde30bb53e767b6cd010a3b4e3d559ea35d1460504bc71bd980128a5ea28576c8f7db4a901

          • C:\Windows\SysWOW64\nethtsrv.exe

            Filesize

            176KB

            MD5

            7978510c5970d1f1d12b81c5a25ac3fe

            SHA1

            43af21c84053ac839b2b45f2d7b3fd5cf1e6ab5e

            SHA256

            a8814c3d8c9f4d3a0b5b87fe8a34607efe8b29d55e7b080b78978e9e3e394df2

            SHA512

            3997f5203d0f3f5943c6aef9f5e1eba0c3da46709b1d5cd30b96ccfde30bb53e767b6cd010a3b4e3d559ea35d1460504bc71bd980128a5ea28576c8f7db4a901

          • C:\Windows\SysWOW64\netupdsrv.exe

            Filesize

            158KB

            MD5

            98e67824a6a7dd2ab81b6d669b50598f

            SHA1

            71acd27a2624be272918db9a1110190610b2cb21

            SHA256

            0dc6a37b218938df66e634f39532d82d428973f148edba92eb2aed4edb7db582

            SHA512

            83c79dc15a32fd857a04de140c73e7030c50d5c1c545fd0b5dd261c227a7237f6a1e6c5790c9df776831da08a05c4f849603a50e249466394022297e26312b34

          • C:\Windows\SysWOW64\netupdsrv.exe

            Filesize

            158KB

            MD5

            98e67824a6a7dd2ab81b6d669b50598f

            SHA1

            71acd27a2624be272918db9a1110190610b2cb21

            SHA256

            0dc6a37b218938df66e634f39532d82d428973f148edba92eb2aed4edb7db582

            SHA512

            83c79dc15a32fd857a04de140c73e7030c50d5c1c545fd0b5dd261c227a7237f6a1e6c5790c9df776831da08a05c4f849603a50e249466394022297e26312b34

          • C:\Windows\SysWOW64\netupdsrv.exe

            Filesize

            158KB

            MD5

            98e67824a6a7dd2ab81b6d669b50598f

            SHA1

            71acd27a2624be272918db9a1110190610b2cb21

            SHA256

            0dc6a37b218938df66e634f39532d82d428973f148edba92eb2aed4edb7db582

            SHA512

            83c79dc15a32fd857a04de140c73e7030c50d5c1c545fd0b5dd261c227a7237f6a1e6c5790c9df776831da08a05c4f849603a50e249466394022297e26312b34

          • memory/404-167-0x0000000000000000-mapping.dmp

          • memory/1544-166-0x0000000000000000-mapping.dmp

          • memory/1580-143-0x0000000000000000-mapping.dmp

          • memory/2052-141-0x0000000000000000-mapping.dmp

          • memory/2612-135-0x0000000000000000-mapping.dmp

          • memory/2956-137-0x0000000000000000-mapping.dmp

          • memory/3056-140-0x0000000000000000-mapping.dmp

          • memory/3132-142-0x0000000000360000-0x00000000007BE000-memory.dmp

            Filesize

            4.4MB

          • memory/3132-136-0x0000000000360000-0x00000000007BE000-memory.dmp

            Filesize

            4.4MB

          • memory/3132-169-0x0000000000360000-0x00000000007BE000-memory.dmp

            Filesize

            4.4MB

          • memory/3592-148-0x0000000000000000-mapping.dmp

          • memory/3772-154-0x0000000000000000-mapping.dmp

          • memory/4320-159-0x0000000000000000-mapping.dmp

          • memory/4904-160-0x0000000000000000-mapping.dmp