Analysis

  • max time kernel
    61s
  • max time network
    46s
  • platform
    windows7_x64
  • resource
    win7-20220812-en
  • resource tags

    arch:x64arch:x86image:win7-20220812-enlocale:en-usos:windows7-x64system
  • submitted
    23-11-2022 11:00

General

  • Target

    0a5ded7dfade6fb8ff6043927074b6ba5c9bad65c82da2269e776b655633296b.exe

  • Size

    446KB

  • MD5

    b08b4378e332526dca9afc6972150bef

  • SHA1

    9086061e12068b3e7579140b67f5147498b0659d

  • SHA256

    0a5ded7dfade6fb8ff6043927074b6ba5c9bad65c82da2269e776b655633296b

  • SHA512

    86134b9b02021583d0a5e68e5bee2a411cd61bab81796ac6227ad65374cfa4e585db6da7357e79f50cab7cbf2a386225fed4f265dfb5006d4ce1ab8758425764

  • SSDEEP

    12288:EblOZVPh0iiQK0XdFL1AWvoRwQmeIPmAsJZNxIb4pQ+eY:EyiQKOkRwQmPmXLNeQ/

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\0a5ded7dfade6fb8ff6043927074b6ba5c9bad65c82da2269e776b655633296b.exe
    "C:\Users\Admin\AppData\Local\Temp\0a5ded7dfade6fb8ff6043927074b6ba5c9bad65c82da2269e776b655633296b.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:928
    • C:\Windows\SysWOW64\net.exe
      net stop nethttpservice
      2⤵
      • Suspicious use of WriteProcessMemory
      PID:628
      • C:\Windows\SysWOW64\net1.exe
        C:\Windows\system32\net1 stop nethttpservice
        3⤵
          PID:1656
      • C:\Windows\SysWOW64\net.exe
        net stop serviceupdater
        2⤵
        • Suspicious use of WriteProcessMemory
        PID:1416
        • C:\Windows\SysWOW64\net1.exe
          C:\Windows\system32\net1 stop serviceupdater
          3⤵
            PID:1364
        • C:\Windows\SysWOW64\installd.exe
          "C:\Windows\system32\installd.exe" nethfdrv
          2⤵
          • Executes dropped EXE
          • Loads dropped DLL
          PID:1228
        • C:\Windows\SysWOW64\nethtsrv.exe
          "C:\Windows\system32\nethtsrv.exe" -nfdi
          2⤵
          • Executes dropped EXE
          • Loads dropped DLL
          PID:1188
        • C:\Windows\SysWOW64\netupdsrv.exe
          "C:\Windows\system32\netupdsrv.exe" -nfdi
          2⤵
          • Executes dropped EXE
          PID:1584
        • C:\Windows\SysWOW64\net.exe
          net start nethttpservice
          2⤵
          • Suspicious use of WriteProcessMemory
          PID:608
          • C:\Windows\SysWOW64\net1.exe
            C:\Windows\system32\net1 start nethttpservice
            3⤵
              PID:584
          • C:\Windows\SysWOW64\net.exe
            net start serviceupdater
            2⤵
            • Suspicious use of WriteProcessMemory
            PID:1432
            • C:\Windows\SysWOW64\net1.exe
              C:\Windows\system32\net1 start serviceupdater
              3⤵
                PID:1388
          • C:\Windows\SysWOW64\nethtsrv.exe
            C:\Windows\SysWOW64\nethtsrv.exe
            1⤵
            • Executes dropped EXE
            • Loads dropped DLL
            • Suspicious use of AdjustPrivilegeToken
            PID:1820
          • C:\Windows\SysWOW64\netupdsrv.exe
            C:\Windows\SysWOW64\netupdsrv.exe
            1⤵
            • Executes dropped EXE
            PID:1524

          Network

          MITRE ATT&CK Enterprise v6

          Replay Monitor

          Loading Replay Monitor...

          Downloads

          • C:\Windows\SysWOW64\hfnapi.dll

            Filesize

            106KB

            MD5

            a08c5ee75074090746b76409d1363269

            SHA1

            f44fd29ef5ee70d19cb1e7be37d186c0355ea57b

            SHA256

            b93792dc471dcaee7d75b75bd43367565ebf772c0b3ec10521d0adcae133aa94

            SHA512

            9b4cb9491a731844bf50b8401da87f9e955eec295030edc3e568cb539a8afa02f31bb97426ff2a148c1b3dde1f25c8907bd30fd8a25d4ce8587ba798c6ce95ef

          • C:\Windows\SysWOW64\hfpapi.dll

            Filesize

            241KB

            MD5

            dab826d5588f888bcf61c90f6b573f9f

            SHA1

            5d8d48d5309cc1741f87de2411b5765651abef5c

            SHA256

            f850ea1d10bdeea98df7a0a8d6671a062f6f5008a43e76533bb4a971c80f81c8

            SHA512

            ad7d5eb939f4d346956dd66b1528be6d66c1de8d754c54134c4a97a23c2a91c1b98824ab6d6c5ba2454470c80a5dcc602c332352e66f61f96e2d43bf0beecffb

          • C:\Windows\SysWOW64\installd.exe

            Filesize

            108KB

            MD5

            36557e27269af224d9543235606fb3fd

            SHA1

            4ef29ec42f681dc88da346ecfc28610554d31814

            SHA256

            db4f53060cd29ac3d49caa7852db32eddc0d8246d08b21f0a4266f8aa14cb632

            SHA512

            fe7130291563caa4f49a354e185c98f016f9b4c67ae7fb403965c33055506b501e70a8e4d9b7dbecf6ac6babbae96f89d2affcdb8473a748023cbf77f102ea33

          • C:\Windows\SysWOW64\nethtsrv.exe

            Filesize

            176KB

            MD5

            368e3029bb2d76240a6d3e6958bf3ace

            SHA1

            c2c92355fcad7b78ec11df61457d804d40e34ea4

            SHA256

            83a09756a9a478ee0d8dc6992eef95aa0133dc49b7a874e9e54805b4bee34aea

            SHA512

            4e6a109bdf5d9a041402d3ec7032f0d89ddeac974c86bc3652d78665330695695956485e394f3943ec36a07bcb29330a1a8645bdeec07e731a88925eaf423002

          • C:\Windows\SysWOW64\nethtsrv.exe

            Filesize

            176KB

            MD5

            368e3029bb2d76240a6d3e6958bf3ace

            SHA1

            c2c92355fcad7b78ec11df61457d804d40e34ea4

            SHA256

            83a09756a9a478ee0d8dc6992eef95aa0133dc49b7a874e9e54805b4bee34aea

            SHA512

            4e6a109bdf5d9a041402d3ec7032f0d89ddeac974c86bc3652d78665330695695956485e394f3943ec36a07bcb29330a1a8645bdeec07e731a88925eaf423002

          • C:\Windows\SysWOW64\netupdsrv.exe

            Filesize

            158KB

            MD5

            19173b4a11670cb5c92e70538b380571

            SHA1

            b15ca3e334c37c6516ea707092de6193deebdafc

            SHA256

            58aa3ee128bd1d3a09ebe67704dba8be00c8cdb3719e02d865b408f86a58b71d

            SHA512

            788fd2cfe94d51fd43033803f9db2f8467eb48f075dba9c54835f86d42c45770205cc21a5316626c96d731f9a66b4aea5dde3b0c178f7c95b9067b30717bcafa

          • C:\Windows\SysWOW64\netupdsrv.exe

            Filesize

            158KB

            MD5

            19173b4a11670cb5c92e70538b380571

            SHA1

            b15ca3e334c37c6516ea707092de6193deebdafc

            SHA256

            58aa3ee128bd1d3a09ebe67704dba8be00c8cdb3719e02d865b408f86a58b71d

            SHA512

            788fd2cfe94d51fd43033803f9db2f8467eb48f075dba9c54835f86d42c45770205cc21a5316626c96d731f9a66b4aea5dde3b0c178f7c95b9067b30717bcafa

          • \Users\Admin\AppData\Local\Temp\nsyA0D4.tmp\System.dll

            Filesize

            11KB

            MD5

            c17103ae9072a06da581dec998343fc1

            SHA1

            b72148c6bdfaada8b8c3f950e610ee7cf1da1f8d

            SHA256

            dc58d8ad81cacb0c1ed72e33bff8f23ea40b5252b5bb55d393a0903e6819ae2f

            SHA512

            d32a71aaef18e993f28096d536e41c4d016850721b31171513ce28bbd805a54fd290b7c3e9d935f72e676a1acfb4f0dcc89d95040a0dd29f2b6975855c18986f

          • \Users\Admin\AppData\Local\Temp\nsyA0D4.tmp\nsExec.dll

            Filesize

            6KB

            MD5

            acc2b699edfea5bf5aae45aba3a41e96

            SHA1

            d2accf4d494e43ceb2cff69abe4dd17147d29cc2

            SHA256

            168a974eaa3f588d759db3f47c1a9fdc3494ba1fa1a73a84e5e3b2a4d58abd7e

            SHA512

            e29ea10ada98c71a18273b04f44f385b120d4e8473e441ce5748cfa44a23648814f2656f429b85440157988c88de776c6ac008dc38bf09cbb746c230a46c69fe

          • \Users\Admin\AppData\Local\Temp\nsyA0D4.tmp\nsExec.dll

            Filesize

            6KB

            MD5

            acc2b699edfea5bf5aae45aba3a41e96

            SHA1

            d2accf4d494e43ceb2cff69abe4dd17147d29cc2

            SHA256

            168a974eaa3f588d759db3f47c1a9fdc3494ba1fa1a73a84e5e3b2a4d58abd7e

            SHA512

            e29ea10ada98c71a18273b04f44f385b120d4e8473e441ce5748cfa44a23648814f2656f429b85440157988c88de776c6ac008dc38bf09cbb746c230a46c69fe

          • \Users\Admin\AppData\Local\Temp\nsyA0D4.tmp\nsExec.dll

            Filesize

            6KB

            MD5

            acc2b699edfea5bf5aae45aba3a41e96

            SHA1

            d2accf4d494e43ceb2cff69abe4dd17147d29cc2

            SHA256

            168a974eaa3f588d759db3f47c1a9fdc3494ba1fa1a73a84e5e3b2a4d58abd7e

            SHA512

            e29ea10ada98c71a18273b04f44f385b120d4e8473e441ce5748cfa44a23648814f2656f429b85440157988c88de776c6ac008dc38bf09cbb746c230a46c69fe

          • \Users\Admin\AppData\Local\Temp\nsyA0D4.tmp\nsExec.dll

            Filesize

            6KB

            MD5

            acc2b699edfea5bf5aae45aba3a41e96

            SHA1

            d2accf4d494e43ceb2cff69abe4dd17147d29cc2

            SHA256

            168a974eaa3f588d759db3f47c1a9fdc3494ba1fa1a73a84e5e3b2a4d58abd7e

            SHA512

            e29ea10ada98c71a18273b04f44f385b120d4e8473e441ce5748cfa44a23648814f2656f429b85440157988c88de776c6ac008dc38bf09cbb746c230a46c69fe

          • \Windows\SysWOW64\hfnapi.dll

            Filesize

            106KB

            MD5

            a08c5ee75074090746b76409d1363269

            SHA1

            f44fd29ef5ee70d19cb1e7be37d186c0355ea57b

            SHA256

            b93792dc471dcaee7d75b75bd43367565ebf772c0b3ec10521d0adcae133aa94

            SHA512

            9b4cb9491a731844bf50b8401da87f9e955eec295030edc3e568cb539a8afa02f31bb97426ff2a148c1b3dde1f25c8907bd30fd8a25d4ce8587ba798c6ce95ef

          • \Windows\SysWOW64\hfnapi.dll

            Filesize

            106KB

            MD5

            a08c5ee75074090746b76409d1363269

            SHA1

            f44fd29ef5ee70d19cb1e7be37d186c0355ea57b

            SHA256

            b93792dc471dcaee7d75b75bd43367565ebf772c0b3ec10521d0adcae133aa94

            SHA512

            9b4cb9491a731844bf50b8401da87f9e955eec295030edc3e568cb539a8afa02f31bb97426ff2a148c1b3dde1f25c8907bd30fd8a25d4ce8587ba798c6ce95ef

          • \Windows\SysWOW64\hfnapi.dll

            Filesize

            106KB

            MD5

            a08c5ee75074090746b76409d1363269

            SHA1

            f44fd29ef5ee70d19cb1e7be37d186c0355ea57b

            SHA256

            b93792dc471dcaee7d75b75bd43367565ebf772c0b3ec10521d0adcae133aa94

            SHA512

            9b4cb9491a731844bf50b8401da87f9e955eec295030edc3e568cb539a8afa02f31bb97426ff2a148c1b3dde1f25c8907bd30fd8a25d4ce8587ba798c6ce95ef

          • \Windows\SysWOW64\hfpapi.dll

            Filesize

            241KB

            MD5

            dab826d5588f888bcf61c90f6b573f9f

            SHA1

            5d8d48d5309cc1741f87de2411b5765651abef5c

            SHA256

            f850ea1d10bdeea98df7a0a8d6671a062f6f5008a43e76533bb4a971c80f81c8

            SHA512

            ad7d5eb939f4d346956dd66b1528be6d66c1de8d754c54134c4a97a23c2a91c1b98824ab6d6c5ba2454470c80a5dcc602c332352e66f61f96e2d43bf0beecffb

          • \Windows\SysWOW64\hfpapi.dll

            Filesize

            241KB

            MD5

            dab826d5588f888bcf61c90f6b573f9f

            SHA1

            5d8d48d5309cc1741f87de2411b5765651abef5c

            SHA256

            f850ea1d10bdeea98df7a0a8d6671a062f6f5008a43e76533bb4a971c80f81c8

            SHA512

            ad7d5eb939f4d346956dd66b1528be6d66c1de8d754c54134c4a97a23c2a91c1b98824ab6d6c5ba2454470c80a5dcc602c332352e66f61f96e2d43bf0beecffb

          • \Windows\SysWOW64\installd.exe

            Filesize

            108KB

            MD5

            36557e27269af224d9543235606fb3fd

            SHA1

            4ef29ec42f681dc88da346ecfc28610554d31814

            SHA256

            db4f53060cd29ac3d49caa7852db32eddc0d8246d08b21f0a4266f8aa14cb632

            SHA512

            fe7130291563caa4f49a354e185c98f016f9b4c67ae7fb403965c33055506b501e70a8e4d9b7dbecf6ac6babbae96f89d2affcdb8473a748023cbf77f102ea33

          • \Windows\SysWOW64\nethtsrv.exe

            Filesize

            176KB

            MD5

            368e3029bb2d76240a6d3e6958bf3ace

            SHA1

            c2c92355fcad7b78ec11df61457d804d40e34ea4

            SHA256

            83a09756a9a478ee0d8dc6992eef95aa0133dc49b7a874e9e54805b4bee34aea

            SHA512

            4e6a109bdf5d9a041402d3ec7032f0d89ddeac974c86bc3652d78665330695695956485e394f3943ec36a07bcb29330a1a8645bdeec07e731a88925eaf423002

          • \Windows\SysWOW64\netupdsrv.exe

            Filesize

            158KB

            MD5

            19173b4a11670cb5c92e70538b380571

            SHA1

            b15ca3e334c37c6516ea707092de6193deebdafc

            SHA256

            58aa3ee128bd1d3a09ebe67704dba8be00c8cdb3719e02d865b408f86a58b71d

            SHA512

            788fd2cfe94d51fd43033803f9db2f8467eb48f075dba9c54835f86d42c45770205cc21a5316626c96d731f9a66b4aea5dde3b0c178f7c95b9067b30717bcafa

          • memory/584-80-0x0000000000000000-mapping.dmp

          • memory/608-79-0x0000000000000000-mapping.dmp

          • memory/628-57-0x0000000000000000-mapping.dmp

          • memory/928-54-0x0000000075DF1000-0x0000000075DF3000-memory.dmp

            Filesize

            8KB

          • memory/1188-69-0x0000000000000000-mapping.dmp

          • memory/1228-63-0x0000000000000000-mapping.dmp

          • memory/1364-61-0x0000000000000000-mapping.dmp

          • memory/1388-86-0x0000000000000000-mapping.dmp

          • memory/1416-60-0x0000000000000000-mapping.dmp

          • memory/1432-85-0x0000000000000000-mapping.dmp

          • memory/1584-75-0x0000000000000000-mapping.dmp

          • memory/1656-58-0x0000000000000000-mapping.dmp