Analysis

  • max time kernel
    162s
  • max time network
    185s
  • 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 10:12

General

  • Target

    cb0f72214f5875e258b349b7c16d0f1789ecb94cf79bbcba89284d4801198de7.exe

  • Size

    602KB

  • MD5

    f04cf2ca93519a929395f43fb299b48c

  • SHA1

    048d3e2940268c865e73d386e6ba63d3b7467e44

  • SHA256

    cb0f72214f5875e258b349b7c16d0f1789ecb94cf79bbcba89284d4801198de7

  • SHA512

    e3dea5739b1db1a726f2e015b0f03bb3e78256219ae958519f6bb906107b9906014581ba1d8a885e5d156f1a8285c8c73b926a450b7dc7532009727432a924c8

  • SSDEEP

    12288:HIny5DYTqOy4/2863Buy6Othed/OQX5TEpTiPg6/UCX/N:PUTqOj/2+OadWQXpoipUCP

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\cb0f72214f5875e258b349b7c16d0f1789ecb94cf79bbcba89284d4801198de7.exe
    "C:\Users\Admin\AppData\Local\Temp\cb0f72214f5875e258b349b7c16d0f1789ecb94cf79bbcba89284d4801198de7.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:5012
    • C:\Windows\SysWOW64\net.exe
      net stop nethttpservice
      2⤵
      • Suspicious use of WriteProcessMemory
      PID:2528
      • C:\Windows\SysWOW64\net1.exe
        C:\Windows\system32\net1 stop nethttpservice
        3⤵
          PID:2068
      • C:\Windows\SysWOW64\net.exe
        net stop serviceupdater
        2⤵
        • Suspicious use of WriteProcessMemory
        PID:3752
        • C:\Windows\SysWOW64\net1.exe
          C:\Windows\system32\net1 stop serviceupdater
          3⤵
            PID:1420
        • C:\Windows\SysWOW64\installd.exe
          "C:\Windows\system32\installd.exe" nethfdrv
          2⤵
          • Executes dropped EXE
          • Loads dropped DLL
          PID:3172
        • C:\Windows\SysWOW64\nethtsrv.exe
          "C:\Windows\system32\nethtsrv.exe" -nfdi
          2⤵
          • Executes dropped EXE
          • Loads dropped DLL
          PID:3556
        • C:\Windows\SysWOW64\netupdsrv.exe
          "C:\Windows\system32\netupdsrv.exe" -nfdi
          2⤵
          • Executes dropped EXE
          PID:4808
        • C:\Windows\SysWOW64\net.exe
          net start nethttpservice
          2⤵
          • Suspicious use of WriteProcessMemory
          PID:224
          • C:\Windows\SysWOW64\net1.exe
            C:\Windows\system32\net1 start nethttpservice
            3⤵
              PID:4388
          • C:\Windows\SysWOW64\net.exe
            net start serviceupdater
            2⤵
            • Suspicious use of WriteProcessMemory
            PID:3544
            • C:\Windows\SysWOW64\net1.exe
              C:\Windows\system32\net1 start serviceupdater
              3⤵
                PID:5052
          • 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:2148
          • C:\Windows\SysWOW64\netupdsrv.exe
            C:\Windows\SysWOW64\netupdsrv.exe
            1⤵
            • Executes dropped EXE
            PID:3564

          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\nsxFFE3.tmp\System.dll
            Filesize

            11KB

            MD5

            c17103ae9072a06da581dec998343fc1

            SHA1

            b72148c6bdfaada8b8c3f950e610ee7cf1da1f8d

            SHA256

            dc58d8ad81cacb0c1ed72e33bff8f23ea40b5252b5bb55d393a0903e6819ae2f

            SHA512

            d32a71aaef18e993f28096d536e41c4d016850721b31171513ce28bbd805a54fd290b7c3e9d935f72e676a1acfb4f0dcc89d95040a0dd29f2b6975855c18986f

          • C:\Users\Admin\AppData\Local\Temp\nsxFFE3.tmp\nsExec.dll
            Filesize

            6KB

            MD5

            acc2b699edfea5bf5aae45aba3a41e96

            SHA1

            d2accf4d494e43ceb2cff69abe4dd17147d29cc2

            SHA256

            168a974eaa3f588d759db3f47c1a9fdc3494ba1fa1a73a84e5e3b2a4d58abd7e

            SHA512

            e29ea10ada98c71a18273b04f44f385b120d4e8473e441ce5748cfa44a23648814f2656f429b85440157988c88de776c6ac008dc38bf09cbb746c230a46c69fe

          • C:\Users\Admin\AppData\Local\Temp\nsxFFE3.tmp\nsExec.dll
            Filesize

            6KB

            MD5

            acc2b699edfea5bf5aae45aba3a41e96

            SHA1

            d2accf4d494e43ceb2cff69abe4dd17147d29cc2

            SHA256

            168a974eaa3f588d759db3f47c1a9fdc3494ba1fa1a73a84e5e3b2a4d58abd7e

            SHA512

            e29ea10ada98c71a18273b04f44f385b120d4e8473e441ce5748cfa44a23648814f2656f429b85440157988c88de776c6ac008dc38bf09cbb746c230a46c69fe

          • C:\Users\Admin\AppData\Local\Temp\nsxFFE3.tmp\nsExec.dll
            Filesize

            6KB

            MD5

            acc2b699edfea5bf5aae45aba3a41e96

            SHA1

            d2accf4d494e43ceb2cff69abe4dd17147d29cc2

            SHA256

            168a974eaa3f588d759db3f47c1a9fdc3494ba1fa1a73a84e5e3b2a4d58abd7e

            SHA512

            e29ea10ada98c71a18273b04f44f385b120d4e8473e441ce5748cfa44a23648814f2656f429b85440157988c88de776c6ac008dc38bf09cbb746c230a46c69fe

          • C:\Users\Admin\AppData\Local\Temp\nsxFFE3.tmp\nsExec.dll
            Filesize

            6KB

            MD5

            acc2b699edfea5bf5aae45aba3a41e96

            SHA1

            d2accf4d494e43ceb2cff69abe4dd17147d29cc2

            SHA256

            168a974eaa3f588d759db3f47c1a9fdc3494ba1fa1a73a84e5e3b2a4d58abd7e

            SHA512

            e29ea10ada98c71a18273b04f44f385b120d4e8473e441ce5748cfa44a23648814f2656f429b85440157988c88de776c6ac008dc38bf09cbb746c230a46c69fe

          • C:\Users\Admin\AppData\Local\Temp\nsxFFE3.tmp\nsExec.dll
            Filesize

            6KB

            MD5

            acc2b699edfea5bf5aae45aba3a41e96

            SHA1

            d2accf4d494e43ceb2cff69abe4dd17147d29cc2

            SHA256

            168a974eaa3f588d759db3f47c1a9fdc3494ba1fa1a73a84e5e3b2a4d58abd7e

            SHA512

            e29ea10ada98c71a18273b04f44f385b120d4e8473e441ce5748cfa44a23648814f2656f429b85440157988c88de776c6ac008dc38bf09cbb746c230a46c69fe

          • C:\Users\Admin\AppData\Local\Temp\nsxFFE3.tmp\nsExec.dll
            Filesize

            6KB

            MD5

            acc2b699edfea5bf5aae45aba3a41e96

            SHA1

            d2accf4d494e43ceb2cff69abe4dd17147d29cc2

            SHA256

            168a974eaa3f588d759db3f47c1a9fdc3494ba1fa1a73a84e5e3b2a4d58abd7e

            SHA512

            e29ea10ada98c71a18273b04f44f385b120d4e8473e441ce5748cfa44a23648814f2656f429b85440157988c88de776c6ac008dc38bf09cbb746c230a46c69fe

          • C:\Users\Admin\AppData\Local\Temp\nsxFFE3.tmp\nsExec.dll
            Filesize

            6KB

            MD5

            acc2b699edfea5bf5aae45aba3a41e96

            SHA1

            d2accf4d494e43ceb2cff69abe4dd17147d29cc2

            SHA256

            168a974eaa3f588d759db3f47c1a9fdc3494ba1fa1a73a84e5e3b2a4d58abd7e

            SHA512

            e29ea10ada98c71a18273b04f44f385b120d4e8473e441ce5748cfa44a23648814f2656f429b85440157988c88de776c6ac008dc38bf09cbb746c230a46c69fe

          • C:\Users\Admin\AppData\Local\Temp\nsxFFE3.tmp\nsExec.dll
            Filesize

            6KB

            MD5

            acc2b699edfea5bf5aae45aba3a41e96

            SHA1

            d2accf4d494e43ceb2cff69abe4dd17147d29cc2

            SHA256

            168a974eaa3f588d759db3f47c1a9fdc3494ba1fa1a73a84e5e3b2a4d58abd7e

            SHA512

            e29ea10ada98c71a18273b04f44f385b120d4e8473e441ce5748cfa44a23648814f2656f429b85440157988c88de776c6ac008dc38bf09cbb746c230a46c69fe

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

            106KB

            MD5

            f471594add2e0f7f398ba74e8b4cddb1

            SHA1

            89361e94412e85595701987df82cf401f918f15c

            SHA256

            0d474bd6c90b852daa8ca66dee96c184052648c3a5564f3d1df14c8aed820ee5

            SHA512

            377719d9b53d821718df267b8e4249587d1f5cc70985b0c91c4d7763a2bcc27a4a21f8757359eeb587c9f5c198151dcdb6088817a71ff3f4dba96839306e555d

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

            106KB

            MD5

            f471594add2e0f7f398ba74e8b4cddb1

            SHA1

            89361e94412e85595701987df82cf401f918f15c

            SHA256

            0d474bd6c90b852daa8ca66dee96c184052648c3a5564f3d1df14c8aed820ee5

            SHA512

            377719d9b53d821718df267b8e4249587d1f5cc70985b0c91c4d7763a2bcc27a4a21f8757359eeb587c9f5c198151dcdb6088817a71ff3f4dba96839306e555d

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

            106KB

            MD5

            f471594add2e0f7f398ba74e8b4cddb1

            SHA1

            89361e94412e85595701987df82cf401f918f15c

            SHA256

            0d474bd6c90b852daa8ca66dee96c184052648c3a5564f3d1df14c8aed820ee5

            SHA512

            377719d9b53d821718df267b8e4249587d1f5cc70985b0c91c4d7763a2bcc27a4a21f8757359eeb587c9f5c198151dcdb6088817a71ff3f4dba96839306e555d

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

            106KB

            MD5

            f471594add2e0f7f398ba74e8b4cddb1

            SHA1

            89361e94412e85595701987df82cf401f918f15c

            SHA256

            0d474bd6c90b852daa8ca66dee96c184052648c3a5564f3d1df14c8aed820ee5

            SHA512

            377719d9b53d821718df267b8e4249587d1f5cc70985b0c91c4d7763a2bcc27a4a21f8757359eeb587c9f5c198151dcdb6088817a71ff3f4dba96839306e555d

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

            241KB

            MD5

            968e700d92d0429f171346f5dcbd0819

            SHA1

            fad43d7b90a0712c35c41598dbd6064e029ccbcd

            SHA256

            c657b8e072733ab91fb433b7576a015cbeefc7aa782c4c82b2653ad173bea91d

            SHA512

            aa2f0c6b1d220d74c891f5a86714865a76c248c787ce21ce46f2b3d33323aae93c03eac4a76b1d164752158f8021521544c89a77b0a2447abb20fb8695d881c9

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

            241KB

            MD5

            968e700d92d0429f171346f5dcbd0819

            SHA1

            fad43d7b90a0712c35c41598dbd6064e029ccbcd

            SHA256

            c657b8e072733ab91fb433b7576a015cbeefc7aa782c4c82b2653ad173bea91d

            SHA512

            aa2f0c6b1d220d74c891f5a86714865a76c248c787ce21ce46f2b3d33323aae93c03eac4a76b1d164752158f8021521544c89a77b0a2447abb20fb8695d881c9

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

            241KB

            MD5

            968e700d92d0429f171346f5dcbd0819

            SHA1

            fad43d7b90a0712c35c41598dbd6064e029ccbcd

            SHA256

            c657b8e072733ab91fb433b7576a015cbeefc7aa782c4c82b2653ad173bea91d

            SHA512

            aa2f0c6b1d220d74c891f5a86714865a76c248c787ce21ce46f2b3d33323aae93c03eac4a76b1d164752158f8021521544c89a77b0a2447abb20fb8695d881c9

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

            108KB

            MD5

            eae4cea88ef0050d3742348423ac189c

            SHA1

            2a455ae4ab231479bb948fb9b8d7d0959428c870

            SHA256

            798d2c22204fcb3befb1eb4dba8a363aa184af18f1abfcfc8d9ffeea8548222b

            SHA512

            9461a360356a1e6eb0e1c8e5c914ac1295f10016921d81aa3e6e88043313da5ecef6a1e7596c6a5ac67ed2a8503104d94d44350287107fde8c8af49ecc3bd3bf

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

            108KB

            MD5

            eae4cea88ef0050d3742348423ac189c

            SHA1

            2a455ae4ab231479bb948fb9b8d7d0959428c870

            SHA256

            798d2c22204fcb3befb1eb4dba8a363aa184af18f1abfcfc8d9ffeea8548222b

            SHA512

            9461a360356a1e6eb0e1c8e5c914ac1295f10016921d81aa3e6e88043313da5ecef6a1e7596c6a5ac67ed2a8503104d94d44350287107fde8c8af49ecc3bd3bf

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

            176KB

            MD5

            d8416583ce0ca43a1eae1efea6fd3f35

            SHA1

            fcc515aed24626ba9c3d0bfd4bbb47d87a90df8c

            SHA256

            9f579f3d0dbd8ebd7f2b5f3aa9bcf854e6e516644067013922c13c47da799216

            SHA512

            97fd289b598e4080e88da5ff8a7acdba57da00b7312d3226cb127ee5e140a1543e85c3cd7d223ae11a85d38f38a4fa7ed89e2e162fd9a0b91cd4e32d2909a105

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

            176KB

            MD5

            d8416583ce0ca43a1eae1efea6fd3f35

            SHA1

            fcc515aed24626ba9c3d0bfd4bbb47d87a90df8c

            SHA256

            9f579f3d0dbd8ebd7f2b5f3aa9bcf854e6e516644067013922c13c47da799216

            SHA512

            97fd289b598e4080e88da5ff8a7acdba57da00b7312d3226cb127ee5e140a1543e85c3cd7d223ae11a85d38f38a4fa7ed89e2e162fd9a0b91cd4e32d2909a105

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

            176KB

            MD5

            d8416583ce0ca43a1eae1efea6fd3f35

            SHA1

            fcc515aed24626ba9c3d0bfd4bbb47d87a90df8c

            SHA256

            9f579f3d0dbd8ebd7f2b5f3aa9bcf854e6e516644067013922c13c47da799216

            SHA512

            97fd289b598e4080e88da5ff8a7acdba57da00b7312d3226cb127ee5e140a1543e85c3cd7d223ae11a85d38f38a4fa7ed89e2e162fd9a0b91cd4e32d2909a105

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

            159KB

            MD5

            62d1c05368ad1558b6c9a343bf0a07cc

            SHA1

            5e3de4979bea12195268f297f024c67c0c460984

            SHA256

            72790df1a16bb51639044df9067d6c21ad629c26ea3e9ed3a0cb58080c1b63bf

            SHA512

            53f702ef8336ce2871d3db8e0b65ab900a7a4e5bd9df3d8c9ce02bc037aaba0932d48779c5a1c307784a06f9d2f59d15fd2ae7804457e4cdc8ae30b45143ab2d

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

            159KB

            MD5

            62d1c05368ad1558b6c9a343bf0a07cc

            SHA1

            5e3de4979bea12195268f297f024c67c0c460984

            SHA256

            72790df1a16bb51639044df9067d6c21ad629c26ea3e9ed3a0cb58080c1b63bf

            SHA512

            53f702ef8336ce2871d3db8e0b65ab900a7a4e5bd9df3d8c9ce02bc037aaba0932d48779c5a1c307784a06f9d2f59d15fd2ae7804457e4cdc8ae30b45143ab2d

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

            159KB

            MD5

            62d1c05368ad1558b6c9a343bf0a07cc

            SHA1

            5e3de4979bea12195268f297f024c67c0c460984

            SHA256

            72790df1a16bb51639044df9067d6c21ad629c26ea3e9ed3a0cb58080c1b63bf

            SHA512

            53f702ef8336ce2871d3db8e0b65ab900a7a4e5bd9df3d8c9ce02bc037aaba0932d48779c5a1c307784a06f9d2f59d15fd2ae7804457e4cdc8ae30b45143ab2d

          • memory/224-158-0x0000000000000000-mapping.dmp
          • memory/1420-141-0x0000000000000000-mapping.dmp
          • memory/2068-137-0x0000000000000000-mapping.dmp
          • memory/2528-136-0x0000000000000000-mapping.dmp
          • memory/3172-142-0x0000000000000000-mapping.dmp
          • memory/3544-166-0x0000000000000000-mapping.dmp
          • memory/3556-147-0x0000000000000000-mapping.dmp
          • memory/3752-140-0x0000000000000000-mapping.dmp
          • memory/4388-159-0x0000000000000000-mapping.dmp
          • memory/4808-153-0x0000000000000000-mapping.dmp
          • memory/5012-161-0x0000000000360000-0x00000000007BE000-memory.dmp
            Filesize

            4.4MB

          • memory/5012-132-0x0000000000360000-0x00000000007BE000-memory.dmp
            Filesize

            4.4MB

          • memory/5012-169-0x0000000000360000-0x00000000007BE000-memory.dmp
            Filesize

            4.4MB

          • memory/5052-167-0x0000000000000000-mapping.dmp