Analysis

  • max time kernel
    145s
  • max time network
    154s
  • 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 10:22

General

  • Target

    7665d162c2a45a17cafab6510ed032629bdce38d5b5042a8a83884b6d7d07199.exe

  • Size

    602KB

  • MD5

    c95b7892bf2a176ebe9cd80a7107e7c9

  • SHA1

    05db657ee63450b0cd42987871b6ee0615bf59c4

  • SHA256

    7665d162c2a45a17cafab6510ed032629bdce38d5b5042a8a83884b6d7d07199

  • SHA512

    ac9662687bdf1b50b83891b2227909f23d913724816f5a86f337106e9afec3be4a73d3434340e50b569cb9fa962feb61520aef5c32474c4812ab64f452cf45ca

  • SSDEEP

    12288:rIny5DYTjA/Gq1hCxkQ+tG04eQsG02ZYQxCOic:TUTjA+q1wxky04hdYmCOi

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\7665d162c2a45a17cafab6510ed032629bdce38d5b5042a8a83884b6d7d07199.exe
    "C:\Users\Admin\AppData\Local\Temp\7665d162c2a45a17cafab6510ed032629bdce38d5b5042a8a83884b6d7d07199.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:3828
    • C:\Windows\SysWOW64\net.exe
      net stop nethttpservice
      2⤵
      • Suspicious use of WriteProcessMemory
      PID:4740
      • C:\Windows\SysWOW64\net1.exe
        C:\Windows\system32\net1 stop nethttpservice
        3⤵
          PID:1368
      • C:\Windows\SysWOW64\net.exe
        net stop serviceupdater
        2⤵
        • Suspicious use of WriteProcessMemory
        PID:372
        • C:\Windows\SysWOW64\net1.exe
          C:\Windows\system32\net1 stop serviceupdater
          3⤵
            PID:1984
        • C:\Windows\SysWOW64\installd.exe
          "C:\Windows\system32\installd.exe" nethfdrv
          2⤵
          • Executes dropped EXE
          • Loads dropped DLL
          PID:1656
        • C:\Windows\SysWOW64\nethtsrv.exe
          "C:\Windows\system32\nethtsrv.exe" -nfdi
          2⤵
          • Executes dropped EXE
          • Loads dropped DLL
          PID:1312
        • C:\Windows\SysWOW64\netupdsrv.exe
          "C:\Windows\system32\netupdsrv.exe" -nfdi
          2⤵
          • Executes dropped EXE
          PID:4572
        • C:\Windows\SysWOW64\net.exe
          net start nethttpservice
          2⤵
          • Suspicious use of WriteProcessMemory
          PID:4140
          • C:\Windows\SysWOW64\net1.exe
            C:\Windows\system32\net1 start nethttpservice
            3⤵
              PID:4020
          • C:\Windows\SysWOW64\net.exe
            net start serviceupdater
            2⤵
            • Suspicious use of WriteProcessMemory
            PID:724
            • C:\Windows\SysWOW64\net1.exe
              C:\Windows\system32\net1 start serviceupdater
              3⤵
                PID:3608
          • 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:4024
          • C:\Windows\SysWOW64\netupdsrv.exe
            C:\Windows\SysWOW64\netupdsrv.exe
            1⤵
            • Executes dropped EXE
            PID:2300

          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\nsd6A69.tmp\System.dll
            Filesize

            11KB

            MD5

            c17103ae9072a06da581dec998343fc1

            SHA1

            b72148c6bdfaada8b8c3f950e610ee7cf1da1f8d

            SHA256

            dc58d8ad81cacb0c1ed72e33bff8f23ea40b5252b5bb55d393a0903e6819ae2f

            SHA512

            d32a71aaef18e993f28096d536e41c4d016850721b31171513ce28bbd805a54fd290b7c3e9d935f72e676a1acfb4f0dcc89d95040a0dd29f2b6975855c18986f

          • C:\Users\Admin\AppData\Local\Temp\nsd6A69.tmp\nsExec.dll
            Filesize

            6KB

            MD5

            acc2b699edfea5bf5aae45aba3a41e96

            SHA1

            d2accf4d494e43ceb2cff69abe4dd17147d29cc2

            SHA256

            168a974eaa3f588d759db3f47c1a9fdc3494ba1fa1a73a84e5e3b2a4d58abd7e

            SHA512

            e29ea10ada98c71a18273b04f44f385b120d4e8473e441ce5748cfa44a23648814f2656f429b85440157988c88de776c6ac008dc38bf09cbb746c230a46c69fe

          • C:\Users\Admin\AppData\Local\Temp\nsd6A69.tmp\nsExec.dll
            Filesize

            6KB

            MD5

            acc2b699edfea5bf5aae45aba3a41e96

            SHA1

            d2accf4d494e43ceb2cff69abe4dd17147d29cc2

            SHA256

            168a974eaa3f588d759db3f47c1a9fdc3494ba1fa1a73a84e5e3b2a4d58abd7e

            SHA512

            e29ea10ada98c71a18273b04f44f385b120d4e8473e441ce5748cfa44a23648814f2656f429b85440157988c88de776c6ac008dc38bf09cbb746c230a46c69fe

          • C:\Users\Admin\AppData\Local\Temp\nsd6A69.tmp\nsExec.dll
            Filesize

            6KB

            MD5

            acc2b699edfea5bf5aae45aba3a41e96

            SHA1

            d2accf4d494e43ceb2cff69abe4dd17147d29cc2

            SHA256

            168a974eaa3f588d759db3f47c1a9fdc3494ba1fa1a73a84e5e3b2a4d58abd7e

            SHA512

            e29ea10ada98c71a18273b04f44f385b120d4e8473e441ce5748cfa44a23648814f2656f429b85440157988c88de776c6ac008dc38bf09cbb746c230a46c69fe

          • C:\Users\Admin\AppData\Local\Temp\nsd6A69.tmp\nsExec.dll
            Filesize

            6KB

            MD5

            acc2b699edfea5bf5aae45aba3a41e96

            SHA1

            d2accf4d494e43ceb2cff69abe4dd17147d29cc2

            SHA256

            168a974eaa3f588d759db3f47c1a9fdc3494ba1fa1a73a84e5e3b2a4d58abd7e

            SHA512

            e29ea10ada98c71a18273b04f44f385b120d4e8473e441ce5748cfa44a23648814f2656f429b85440157988c88de776c6ac008dc38bf09cbb746c230a46c69fe

          • C:\Users\Admin\AppData\Local\Temp\nsd6A69.tmp\nsExec.dll
            Filesize

            6KB

            MD5

            acc2b699edfea5bf5aae45aba3a41e96

            SHA1

            d2accf4d494e43ceb2cff69abe4dd17147d29cc2

            SHA256

            168a974eaa3f588d759db3f47c1a9fdc3494ba1fa1a73a84e5e3b2a4d58abd7e

            SHA512

            e29ea10ada98c71a18273b04f44f385b120d4e8473e441ce5748cfa44a23648814f2656f429b85440157988c88de776c6ac008dc38bf09cbb746c230a46c69fe

          • C:\Users\Admin\AppData\Local\Temp\nsd6A69.tmp\nsExec.dll
            Filesize

            6KB

            MD5

            acc2b699edfea5bf5aae45aba3a41e96

            SHA1

            d2accf4d494e43ceb2cff69abe4dd17147d29cc2

            SHA256

            168a974eaa3f588d759db3f47c1a9fdc3494ba1fa1a73a84e5e3b2a4d58abd7e

            SHA512

            e29ea10ada98c71a18273b04f44f385b120d4e8473e441ce5748cfa44a23648814f2656f429b85440157988c88de776c6ac008dc38bf09cbb746c230a46c69fe

          • C:\Users\Admin\AppData\Local\Temp\nsd6A69.tmp\nsExec.dll
            Filesize

            6KB

            MD5

            acc2b699edfea5bf5aae45aba3a41e96

            SHA1

            d2accf4d494e43ceb2cff69abe4dd17147d29cc2

            SHA256

            168a974eaa3f588d759db3f47c1a9fdc3494ba1fa1a73a84e5e3b2a4d58abd7e

            SHA512

            e29ea10ada98c71a18273b04f44f385b120d4e8473e441ce5748cfa44a23648814f2656f429b85440157988c88de776c6ac008dc38bf09cbb746c230a46c69fe

          • C:\Users\Admin\AppData\Local\Temp\nsd6A69.tmp\nsExec.dll
            Filesize

            6KB

            MD5

            acc2b699edfea5bf5aae45aba3a41e96

            SHA1

            d2accf4d494e43ceb2cff69abe4dd17147d29cc2

            SHA256

            168a974eaa3f588d759db3f47c1a9fdc3494ba1fa1a73a84e5e3b2a4d58abd7e

            SHA512

            e29ea10ada98c71a18273b04f44f385b120d4e8473e441ce5748cfa44a23648814f2656f429b85440157988c88de776c6ac008dc38bf09cbb746c230a46c69fe

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

            106KB

            MD5

            6e5b59905b74c5f02c230f3bbad03981

            SHA1

            6e985dafdc7189793c2c98e27b0c0e1a69a336ca

            SHA256

            29dee33dc1e73dbb53854ee08d89fe51adeb9cdbcda171536d08846d44a66306

            SHA512

            f986db934ee9db451b44270f52407dfc0f756579774e79577c008d2f9467ad7f1c5f3f03d9dde09033559d9a27df0947e6291edb5d526bf217cb329a90c084d0

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

            106KB

            MD5

            6e5b59905b74c5f02c230f3bbad03981

            SHA1

            6e985dafdc7189793c2c98e27b0c0e1a69a336ca

            SHA256

            29dee33dc1e73dbb53854ee08d89fe51adeb9cdbcda171536d08846d44a66306

            SHA512

            f986db934ee9db451b44270f52407dfc0f756579774e79577c008d2f9467ad7f1c5f3f03d9dde09033559d9a27df0947e6291edb5d526bf217cb329a90c084d0

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

            106KB

            MD5

            6e5b59905b74c5f02c230f3bbad03981

            SHA1

            6e985dafdc7189793c2c98e27b0c0e1a69a336ca

            SHA256

            29dee33dc1e73dbb53854ee08d89fe51adeb9cdbcda171536d08846d44a66306

            SHA512

            f986db934ee9db451b44270f52407dfc0f756579774e79577c008d2f9467ad7f1c5f3f03d9dde09033559d9a27df0947e6291edb5d526bf217cb329a90c084d0

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

            106KB

            MD5

            6e5b59905b74c5f02c230f3bbad03981

            SHA1

            6e985dafdc7189793c2c98e27b0c0e1a69a336ca

            SHA256

            29dee33dc1e73dbb53854ee08d89fe51adeb9cdbcda171536d08846d44a66306

            SHA512

            f986db934ee9db451b44270f52407dfc0f756579774e79577c008d2f9467ad7f1c5f3f03d9dde09033559d9a27df0947e6291edb5d526bf217cb329a90c084d0

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

            241KB

            MD5

            112e72b66eed45dbda54e970c50a6f39

            SHA1

            ce6bee3471e75805e3e8461d18102e49d261ff07

            SHA256

            ddc12778a0dc0750b86185b1aca6ab9d20212c25c29b1fe3b75685b50837060e

            SHA512

            edafee98c989ea9a517c9627a916ac4538b4c7593db2546593962c2380930687c4e6416f936fec36c9e49693662a939f1dfb618f01d65009f1cfdd88f8988b60

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

            241KB

            MD5

            112e72b66eed45dbda54e970c50a6f39

            SHA1

            ce6bee3471e75805e3e8461d18102e49d261ff07

            SHA256

            ddc12778a0dc0750b86185b1aca6ab9d20212c25c29b1fe3b75685b50837060e

            SHA512

            edafee98c989ea9a517c9627a916ac4538b4c7593db2546593962c2380930687c4e6416f936fec36c9e49693662a939f1dfb618f01d65009f1cfdd88f8988b60

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

            241KB

            MD5

            112e72b66eed45dbda54e970c50a6f39

            SHA1

            ce6bee3471e75805e3e8461d18102e49d261ff07

            SHA256

            ddc12778a0dc0750b86185b1aca6ab9d20212c25c29b1fe3b75685b50837060e

            SHA512

            edafee98c989ea9a517c9627a916ac4538b4c7593db2546593962c2380930687c4e6416f936fec36c9e49693662a939f1dfb618f01d65009f1cfdd88f8988b60

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

            108KB

            MD5

            f268c90da2eb2774be61d4cf4a76be23

            SHA1

            bcc0f4c57168b9ce9fb5552567215c41fd10beab

            SHA256

            000f313cad71c2e022d4b94e44269b7430ba89f3b0bcb15fd944df2b214eb710

            SHA512

            192e7e2ed9ebcfca4c0068a1417ad853e42b2e6192ba8d95ac54f3aef70ad0c3a7a1e357b6d08d3269ddbe469feb7d59823c11b19942b26f2d5f5b7fcab68863

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

            108KB

            MD5

            f268c90da2eb2774be61d4cf4a76be23

            SHA1

            bcc0f4c57168b9ce9fb5552567215c41fd10beab

            SHA256

            000f313cad71c2e022d4b94e44269b7430ba89f3b0bcb15fd944df2b214eb710

            SHA512

            192e7e2ed9ebcfca4c0068a1417ad853e42b2e6192ba8d95ac54f3aef70ad0c3a7a1e357b6d08d3269ddbe469feb7d59823c11b19942b26f2d5f5b7fcab68863

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

            176KB

            MD5

            87acf2e524fac6d338f39ec6f6e32c79

            SHA1

            c2c970db6023295e3d00ce1911ad7adbf314446f

            SHA256

            976cfc8fc458e5b6cf0f137682b86a8f3bbe270adaaa0c3d2d32d953c889abb7

            SHA512

            4e14d60462ae5674f187fbed66ebabab05f5a75720846be7c3fe0a510011c9268d137ae10ee437ff7facb668c800ddb2c131d833ec38f1735c2614431990fa61

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

            176KB

            MD5

            87acf2e524fac6d338f39ec6f6e32c79

            SHA1

            c2c970db6023295e3d00ce1911ad7adbf314446f

            SHA256

            976cfc8fc458e5b6cf0f137682b86a8f3bbe270adaaa0c3d2d32d953c889abb7

            SHA512

            4e14d60462ae5674f187fbed66ebabab05f5a75720846be7c3fe0a510011c9268d137ae10ee437ff7facb668c800ddb2c131d833ec38f1735c2614431990fa61

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

            176KB

            MD5

            87acf2e524fac6d338f39ec6f6e32c79

            SHA1

            c2c970db6023295e3d00ce1911ad7adbf314446f

            SHA256

            976cfc8fc458e5b6cf0f137682b86a8f3bbe270adaaa0c3d2d32d953c889abb7

            SHA512

            4e14d60462ae5674f187fbed66ebabab05f5a75720846be7c3fe0a510011c9268d137ae10ee437ff7facb668c800ddb2c131d833ec38f1735c2614431990fa61

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

            158KB

            MD5

            3397a356b29bc585d5b99a597e4fbf0a

            SHA1

            ec7f4f5e7feff2536db3af0012acd3034d11fe64

            SHA256

            68976a865e9ce8a7c8f72e4982b024f91ee34524ba0bb91181117fe68df9e6f9

            SHA512

            2032a5ac993060f2e85afb62f487ecaf959b07979a2999c08536882a377cedff2374cf0cde32faf42b84dfa97ae20573ff2dc84057a2c4385ba80a96aa9719a8

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

            158KB

            MD5

            3397a356b29bc585d5b99a597e4fbf0a

            SHA1

            ec7f4f5e7feff2536db3af0012acd3034d11fe64

            SHA256

            68976a865e9ce8a7c8f72e4982b024f91ee34524ba0bb91181117fe68df9e6f9

            SHA512

            2032a5ac993060f2e85afb62f487ecaf959b07979a2999c08536882a377cedff2374cf0cde32faf42b84dfa97ae20573ff2dc84057a2c4385ba80a96aa9719a8

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

            158KB

            MD5

            3397a356b29bc585d5b99a597e4fbf0a

            SHA1

            ec7f4f5e7feff2536db3af0012acd3034d11fe64

            SHA256

            68976a865e9ce8a7c8f72e4982b024f91ee34524ba0bb91181117fe68df9e6f9

            SHA512

            2032a5ac993060f2e85afb62f487ecaf959b07979a2999c08536882a377cedff2374cf0cde32faf42b84dfa97ae20573ff2dc84057a2c4385ba80a96aa9719a8

          • memory/372-140-0x0000000000000000-mapping.dmp
          • memory/724-165-0x0000000000000000-mapping.dmp
          • memory/1312-147-0x0000000000000000-mapping.dmp
          • memory/1368-136-0x0000000000000000-mapping.dmp
          • memory/1656-142-0x0000000000000000-mapping.dmp
          • memory/1984-141-0x0000000000000000-mapping.dmp
          • memory/3608-166-0x0000000000000000-mapping.dmp
          • memory/3828-137-0x0000000000360000-0x00000000007BE000-memory.dmp
            Filesize

            4.4MB

          • memory/3828-168-0x0000000000360000-0x00000000007BE000-memory.dmp
            Filesize

            4.4MB

          • memory/4020-159-0x0000000000000000-mapping.dmp
          • memory/4140-158-0x0000000000000000-mapping.dmp
          • memory/4572-153-0x0000000000000000-mapping.dmp
          • memory/4740-135-0x0000000000000000-mapping.dmp