Analysis

  • max time kernel
    49s
  • max time network
    35s
  • platform
    windows7_x64
  • resource
    win7-20221111-en
  • resource tags

    arch:x64arch:x86image:win7-20221111-enlocale:en-usos:windows7-x64system
  • submitted
    23-11-2022 10:07

General

  • Target

    f72265eba6ae2886f54fe37a70dbe3255d15029ef33756ac5f6d776be6246d71.exe

  • Size

    603KB

  • MD5

    19890c8103d54df3587f6701978137cf

  • SHA1

    c4af34863a80295d46b68b5f9e42864aea23b181

  • SHA256

    f72265eba6ae2886f54fe37a70dbe3255d15029ef33756ac5f6d776be6246d71

  • SHA512

    881667bf659b7ff27693a8d9dd38afe3a71b683e74ec67c4cf75c284d8f441b7a84c27b34fb0a2f2f10aa6ecd3ee53079205c50b4315717123c0c87225266f6a

  • SSDEEP

    12288:dIny5DYTfIxCJu0HBPEa/bygtyJshnBIPn6BfS7cFTkFD:JUTfWAu0HBFbygtLBIm+ci

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\f72265eba6ae2886f54fe37a70dbe3255d15029ef33756ac5f6d776be6246d71.exe
    "C:\Users\Admin\AppData\Local\Temp\f72265eba6ae2886f54fe37a70dbe3255d15029ef33756ac5f6d776be6246d71.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:268
    • C:\Windows\SysWOW64\net.exe
      net stop nethttpservice
      2⤵
      • Suspicious use of WriteProcessMemory
      PID:676
      • C:\Windows\SysWOW64\net1.exe
        C:\Windows\system32\net1 stop nethttpservice
        3⤵
          PID:784
      • C:\Windows\SysWOW64\net.exe
        net stop serviceupdater
        2⤵
        • Suspicious use of WriteProcessMemory
        PID:896
        • C:\Windows\SysWOW64\net1.exe
          C:\Windows\system32\net1 stop serviceupdater
          3⤵
            PID:916
        • C:\Windows\SysWOW64\installd.exe
          "C:\Windows\system32\installd.exe" nethfdrv
          2⤵
          • Executes dropped EXE
          • Loads dropped DLL
          PID:1840
        • C:\Windows\SysWOW64\nethtsrv.exe
          "C:\Windows\system32\nethtsrv.exe" -nfdi
          2⤵
          • Executes dropped EXE
          • Loads dropped DLL
          PID:1588
        • C:\Windows\SysWOW64\netupdsrv.exe
          "C:\Windows\system32\netupdsrv.exe" -nfdi
          2⤵
          • Executes dropped EXE
          PID:800
        • C:\Windows\SysWOW64\net.exe
          net start nethttpservice
          2⤵
          • Suspicious use of WriteProcessMemory
          PID:1060
          • C:\Windows\SysWOW64\net1.exe
            C:\Windows\system32\net1 start nethttpservice
            3⤵
              PID:1444
          • C:\Windows\SysWOW64\net.exe
            net start serviceupdater
            2⤵
            • Suspicious use of WriteProcessMemory
            PID:1072
            • C:\Windows\SysWOW64\net1.exe
              C:\Windows\system32\net1 start serviceupdater
              3⤵
                PID:1336
          • C:\Windows\SysWOW64\nethtsrv.exe
            C:\Windows\SysWOW64\nethtsrv.exe
            1⤵
            • Executes dropped EXE
            • Loads dropped DLL
            • Suspicious use of AdjustPrivilegeToken
            PID:1956
          • C:\Windows\SysWOW64\netupdsrv.exe
            C:\Windows\SysWOW64\netupdsrv.exe
            1⤵
            • Executes dropped EXE
            PID:1836

          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

            e978cdfac7feaef959148a0e2910f425

            SHA1

            8a3bb4d0bcca9cfd014424ce5b5ff7437729cef5

            SHA256

            6367f603ab0ba5fa052cd2d37c1424aac4b3b133af5ebcd418e27d713fa0d39d

            SHA512

            ed1c9f30dbfc8cbfd3ffee6fe0fea530ab438c42ead41942d9796f34cb6f2cd36853a5b8a8cd24c2b5052eb3484994354c5745559bec1eac19d7e896df649a02

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

            244KB

            MD5

            fa7553c75a72fc4306b54e9de7fa5c77

            SHA1

            47db993d8bb579734758e22e61594efb55ac69d8

            SHA256

            97b6b4163ec9b51ccd100feb5d27d5cad33796abd5b78cbc08ef6f738baea81d

            SHA512

            8189a8aafe8507ec3c67d5dd54e890d6968c99e065ff1584f024f382e8f23f0e8da9f0a40e406ed4f8244e9411c0094cf94f36d1e0cb566169343a155c5bdf1e

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

            108KB

            MD5

            04d87753bea33b149d5f75dd9101595e

            SHA1

            6359ffd15af653de60421c9afcbd35434ef266dd

            SHA256

            605362c64f7f8539346a3ebb9f14fe479cac1e200819bbd137bd111a61ff90bf

            SHA512

            45a643cd4c582aaabd77e5431d9c2408aedb351c60922ccf6cbd44689b87f3bc6bce07dd524446458e3be5d143162c484913b4867ecb632d6dbab963c7d69718

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

            177KB

            MD5

            25c55ed4614373c99000b7f56380a0eb

            SHA1

            6f59097ab114f0624e0e587ff6052aaf71c1b63c

            SHA256

            1661c7a54952cc54465fb82bc3f310be992763906b5907a1a8b73f82cd670ade

            SHA512

            710536d5cd6b1287ce7b8e6c1e2e107dca23daf56e91332e41c4a21fa50537c77b29a7fa0be6b2fd402c1d907e1ff9cdb927f7d58bc95250f51a23b1a6094e47

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

            177KB

            MD5

            25c55ed4614373c99000b7f56380a0eb

            SHA1

            6f59097ab114f0624e0e587ff6052aaf71c1b63c

            SHA256

            1661c7a54952cc54465fb82bc3f310be992763906b5907a1a8b73f82cd670ade

            SHA512

            710536d5cd6b1287ce7b8e6c1e2e107dca23daf56e91332e41c4a21fa50537c77b29a7fa0be6b2fd402c1d907e1ff9cdb927f7d58bc95250f51a23b1a6094e47

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

            158KB

            MD5

            26705dc6f0795eb47faea8eda0d6640a

            SHA1

            ff494bebe2e39603ce62ab41675e3584db3d57fb

            SHA256

            716d840f4e12cca8ae700535f6303bc8390c23feac6acf5588c8dc9558bbb668

            SHA512

            41a0d9e3ae1b3d4b13b2b28de3d5455f620e227f70fcc0e99f0fb22e9618e5482d19da85c98f89b2e690aa69187477848091520105653362ecb25d8856299513

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

            158KB

            MD5

            26705dc6f0795eb47faea8eda0d6640a

            SHA1

            ff494bebe2e39603ce62ab41675e3584db3d57fb

            SHA256

            716d840f4e12cca8ae700535f6303bc8390c23feac6acf5588c8dc9558bbb668

            SHA512

            41a0d9e3ae1b3d4b13b2b28de3d5455f620e227f70fcc0e99f0fb22e9618e5482d19da85c98f89b2e690aa69187477848091520105653362ecb25d8856299513

          • \Users\Admin\AppData\Local\Temp\nse1D44.tmp\System.dll
            Filesize

            11KB

            MD5

            c17103ae9072a06da581dec998343fc1

            SHA1

            b72148c6bdfaada8b8c3f950e610ee7cf1da1f8d

            SHA256

            dc58d8ad81cacb0c1ed72e33bff8f23ea40b5252b5bb55d393a0903e6819ae2f

            SHA512

            d32a71aaef18e993f28096d536e41c4d016850721b31171513ce28bbd805a54fd290b7c3e9d935f72e676a1acfb4f0dcc89d95040a0dd29f2b6975855c18986f

          • \Users\Admin\AppData\Local\Temp\nse1D44.tmp\nsExec.dll
            Filesize

            6KB

            MD5

            acc2b699edfea5bf5aae45aba3a41e96

            SHA1

            d2accf4d494e43ceb2cff69abe4dd17147d29cc2

            SHA256

            168a974eaa3f588d759db3f47c1a9fdc3494ba1fa1a73a84e5e3b2a4d58abd7e

            SHA512

            e29ea10ada98c71a18273b04f44f385b120d4e8473e441ce5748cfa44a23648814f2656f429b85440157988c88de776c6ac008dc38bf09cbb746c230a46c69fe

          • \Users\Admin\AppData\Local\Temp\nse1D44.tmp\nsExec.dll
            Filesize

            6KB

            MD5

            acc2b699edfea5bf5aae45aba3a41e96

            SHA1

            d2accf4d494e43ceb2cff69abe4dd17147d29cc2

            SHA256

            168a974eaa3f588d759db3f47c1a9fdc3494ba1fa1a73a84e5e3b2a4d58abd7e

            SHA512

            e29ea10ada98c71a18273b04f44f385b120d4e8473e441ce5748cfa44a23648814f2656f429b85440157988c88de776c6ac008dc38bf09cbb746c230a46c69fe

          • \Users\Admin\AppData\Local\Temp\nse1D44.tmp\nsExec.dll
            Filesize

            6KB

            MD5

            acc2b699edfea5bf5aae45aba3a41e96

            SHA1

            d2accf4d494e43ceb2cff69abe4dd17147d29cc2

            SHA256

            168a974eaa3f588d759db3f47c1a9fdc3494ba1fa1a73a84e5e3b2a4d58abd7e

            SHA512

            e29ea10ada98c71a18273b04f44f385b120d4e8473e441ce5748cfa44a23648814f2656f429b85440157988c88de776c6ac008dc38bf09cbb746c230a46c69fe

          • \Users\Admin\AppData\Local\Temp\nse1D44.tmp\nsExec.dll
            Filesize

            6KB

            MD5

            acc2b699edfea5bf5aae45aba3a41e96

            SHA1

            d2accf4d494e43ceb2cff69abe4dd17147d29cc2

            SHA256

            168a974eaa3f588d759db3f47c1a9fdc3494ba1fa1a73a84e5e3b2a4d58abd7e

            SHA512

            e29ea10ada98c71a18273b04f44f385b120d4e8473e441ce5748cfa44a23648814f2656f429b85440157988c88de776c6ac008dc38bf09cbb746c230a46c69fe

          • \Windows\SysWOW64\hfnapi.dll
            Filesize

            106KB

            MD5

            e978cdfac7feaef959148a0e2910f425

            SHA1

            8a3bb4d0bcca9cfd014424ce5b5ff7437729cef5

            SHA256

            6367f603ab0ba5fa052cd2d37c1424aac4b3b133af5ebcd418e27d713fa0d39d

            SHA512

            ed1c9f30dbfc8cbfd3ffee6fe0fea530ab438c42ead41942d9796f34cb6f2cd36853a5b8a8cd24c2b5052eb3484994354c5745559bec1eac19d7e896df649a02

          • \Windows\SysWOW64\hfnapi.dll
            Filesize

            106KB

            MD5

            e978cdfac7feaef959148a0e2910f425

            SHA1

            8a3bb4d0bcca9cfd014424ce5b5ff7437729cef5

            SHA256

            6367f603ab0ba5fa052cd2d37c1424aac4b3b133af5ebcd418e27d713fa0d39d

            SHA512

            ed1c9f30dbfc8cbfd3ffee6fe0fea530ab438c42ead41942d9796f34cb6f2cd36853a5b8a8cd24c2b5052eb3484994354c5745559bec1eac19d7e896df649a02

          • \Windows\SysWOW64\hfnapi.dll
            Filesize

            106KB

            MD5

            e978cdfac7feaef959148a0e2910f425

            SHA1

            8a3bb4d0bcca9cfd014424ce5b5ff7437729cef5

            SHA256

            6367f603ab0ba5fa052cd2d37c1424aac4b3b133af5ebcd418e27d713fa0d39d

            SHA512

            ed1c9f30dbfc8cbfd3ffee6fe0fea530ab438c42ead41942d9796f34cb6f2cd36853a5b8a8cd24c2b5052eb3484994354c5745559bec1eac19d7e896df649a02

          • \Windows\SysWOW64\hfpapi.dll
            Filesize

            244KB

            MD5

            fa7553c75a72fc4306b54e9de7fa5c77

            SHA1

            47db993d8bb579734758e22e61594efb55ac69d8

            SHA256

            97b6b4163ec9b51ccd100feb5d27d5cad33796abd5b78cbc08ef6f738baea81d

            SHA512

            8189a8aafe8507ec3c67d5dd54e890d6968c99e065ff1584f024f382e8f23f0e8da9f0a40e406ed4f8244e9411c0094cf94f36d1e0cb566169343a155c5bdf1e

          • \Windows\SysWOW64\hfpapi.dll
            Filesize

            244KB

            MD5

            fa7553c75a72fc4306b54e9de7fa5c77

            SHA1

            47db993d8bb579734758e22e61594efb55ac69d8

            SHA256

            97b6b4163ec9b51ccd100feb5d27d5cad33796abd5b78cbc08ef6f738baea81d

            SHA512

            8189a8aafe8507ec3c67d5dd54e890d6968c99e065ff1584f024f382e8f23f0e8da9f0a40e406ed4f8244e9411c0094cf94f36d1e0cb566169343a155c5bdf1e

          • \Windows\SysWOW64\installd.exe
            Filesize

            108KB

            MD5

            04d87753bea33b149d5f75dd9101595e

            SHA1

            6359ffd15af653de60421c9afcbd35434ef266dd

            SHA256

            605362c64f7f8539346a3ebb9f14fe479cac1e200819bbd137bd111a61ff90bf

            SHA512

            45a643cd4c582aaabd77e5431d9c2408aedb351c60922ccf6cbd44689b87f3bc6bce07dd524446458e3be5d143162c484913b4867ecb632d6dbab963c7d69718

          • \Windows\SysWOW64\nethtsrv.exe
            Filesize

            177KB

            MD5

            25c55ed4614373c99000b7f56380a0eb

            SHA1

            6f59097ab114f0624e0e587ff6052aaf71c1b63c

            SHA256

            1661c7a54952cc54465fb82bc3f310be992763906b5907a1a8b73f82cd670ade

            SHA512

            710536d5cd6b1287ce7b8e6c1e2e107dca23daf56e91332e41c4a21fa50537c77b29a7fa0be6b2fd402c1d907e1ff9cdb927f7d58bc95250f51a23b1a6094e47

          • \Windows\SysWOW64\netupdsrv.exe
            Filesize

            158KB

            MD5

            26705dc6f0795eb47faea8eda0d6640a

            SHA1

            ff494bebe2e39603ce62ab41675e3584db3d57fb

            SHA256

            716d840f4e12cca8ae700535f6303bc8390c23feac6acf5588c8dc9558bbb668

            SHA512

            41a0d9e3ae1b3d4b13b2b28de3d5455f620e227f70fcc0e99f0fb22e9618e5482d19da85c98f89b2e690aa69187477848091520105653362ecb25d8856299513

          • memory/268-54-0x0000000075891000-0x0000000075893000-memory.dmp
            Filesize

            8KB

          • memory/268-90-0x0000000000360000-0x00000000007BE000-memory.dmp
            Filesize

            4.4MB

          • memory/268-55-0x0000000000360000-0x00000000007BE000-memory.dmp
            Filesize

            4.4MB

          • memory/676-58-0x0000000000000000-mapping.dmp
          • memory/784-59-0x0000000000000000-mapping.dmp
          • memory/800-76-0x0000000000000000-mapping.dmp
          • memory/896-61-0x0000000000000000-mapping.dmp
          • memory/916-62-0x0000000000000000-mapping.dmp
          • memory/1060-80-0x0000000000000000-mapping.dmp
          • memory/1072-86-0x0000000000000000-mapping.dmp
          • memory/1336-87-0x0000000000000000-mapping.dmp
          • memory/1444-81-0x0000000000000000-mapping.dmp
          • memory/1588-70-0x0000000000000000-mapping.dmp
          • memory/1840-64-0x0000000000000000-mapping.dmp