Analysis

  • max time kernel
    38s
  • max time network
    42s
  • platform
    windows7_x64
  • resource
    win7-20220812-en
  • resource tags

    arch:x64arch:x86image:win7-20220812-enlocale:en-usos:windows7-x64system
  • submitted
    23-11-2022 10:23

General

  • Target

    6e7869dea7899c062afa082c26c032ad8993de711ccf44bc0665867f4c10caff.exe

  • Size

    600KB

  • MD5

    650c84dc6bbe6f21915169f5f64e9fbe

  • SHA1

    0651be7b88c60d5e2d6ef64c64c9c77331bca155

  • SHA256

    6e7869dea7899c062afa082c26c032ad8993de711ccf44bc0665867f4c10caff

  • SHA512

    067449b9cad88c9519d8dfc7d5bed7e7324ae9e91dd6896be92990b9530aa5f52669c9cbde1b52a1596c770c591ce925d8d731f3d9b126507f787063deb743d6

  • SSDEEP

    12288:2Iny5DYTj3qRA2tLJICgbhkZKfvndHqyq+KwAy9f3AX0BuvB:4UTj3qRA2N+CMhkAtqyRh00B0

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\6e7869dea7899c062afa082c26c032ad8993de711ccf44bc0665867f4c10caff.exe
    "C:\Users\Admin\AppData\Local\Temp\6e7869dea7899c062afa082c26c032ad8993de711ccf44bc0665867f4c10caff.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:1764
    • C:\Windows\SysWOW64\net.exe
      net stop nethttpservice
      2⤵
      • Suspicious use of WriteProcessMemory
      PID:2020
      • C:\Windows\SysWOW64\net1.exe
        C:\Windows\system32\net1 stop nethttpservice
        3⤵
          PID:1488
      • C:\Windows\SysWOW64\net.exe
        net stop serviceupdater
        2⤵
        • Suspicious use of WriteProcessMemory
        PID:940
        • C:\Windows\SysWOW64\net1.exe
          C:\Windows\system32\net1 stop serviceupdater
          3⤵
            PID:1732
        • C:\Windows\SysWOW64\installd.exe
          "C:\Windows\system32\installd.exe" nethfdrv
          2⤵
          • Executes dropped EXE
          • Loads dropped DLL
          PID:1444
        • C:\Windows\SysWOW64\nethtsrv.exe
          "C:\Windows\system32\nethtsrv.exe" -nfdi
          2⤵
          • Executes dropped EXE
          • Loads dropped DLL
          PID:1704
        • C:\Windows\SysWOW64\netupdsrv.exe
          "C:\Windows\system32\netupdsrv.exe" -nfdi
          2⤵
          • Executes dropped EXE
          PID:1536
        • C:\Windows\SysWOW64\net.exe
          net start nethttpservice
          2⤵
          • Suspicious use of WriteProcessMemory
          PID:824
          • C:\Windows\SysWOW64\net1.exe
            C:\Windows\system32\net1 start nethttpservice
            3⤵
              PID:1416
          • C:\Windows\SysWOW64\net.exe
            net start serviceupdater
            2⤵
            • Suspicious use of WriteProcessMemory
            PID:1012
            • C:\Windows\SysWOW64\net1.exe
              C:\Windows\system32\net1 start serviceupdater
              3⤵
                PID:1664
          • C:\Windows\SysWOW64\nethtsrv.exe
            C:\Windows\SysWOW64\nethtsrv.exe
            1⤵
            • Executes dropped EXE
            • Loads dropped DLL
            • Suspicious use of AdjustPrivilegeToken
            PID:2044
          • C:\Windows\SysWOW64\netupdsrv.exe
            C:\Windows\SysWOW64\netupdsrv.exe
            1⤵
            • Executes dropped EXE
            PID:612

          Network

          MITRE ATT&CK Enterprise v6

          Replay Monitor

          Loading Replay Monitor...

          Downloads

          • C:\Windows\SysWOW64\hfnapi.dll

            Filesize

            106KB

            MD5

            05ccebcddfaeefdb4c5ba6e3fd215be3

            SHA1

            a97db643b99aab959b1cdb71c6337a142ad026d4

            SHA256

            910e08035ecdf608d2da0524a52205c69184926f1560df3130848e3eca9e6fb0

            SHA512

            36f668b0dabc6b598f95803da29d6d9ccf74429a9292e1bf3740997c9dabe2beab0ee3f5045d3e50c457ada35fb5b81101b3faf3ae4c817d272a43277382de9d

          • C:\Windows\SysWOW64\hfpapi.dll

            Filesize

            244KB

            MD5

            5e74b7c65f7af46c4f1332a31e023cdd

            SHA1

            54b75cdf84fc60bfe7ce607b102337624979e900

            SHA256

            1a31bb38e07cbfb268f272369dfc434c6e2dba9027271368f3112e9ee3508855

            SHA512

            1a7e3e6165d8b9791749c402e2e251dd2518463c959bf9b4e709fca0d5df92be2926d8cd2884b78f0d0898c6d385c8773a8bd12991a64c28e0ac77af91cb131c

          • C:\Windows\SysWOW64\installd.exe

            Filesize

            108KB

            MD5

            2c729b8806720c64a8e00ecc69098487

            SHA1

            3655422efcf4018093828044021361e0d473592f

            SHA256

            76ee6f8d269bd135beeb9438dee27342c08ed7d81137ad0897272f0bb07d5076

            SHA512

            353b5d5960d8b7cf989b0ad2856d7a4b3e8b0cfe32e3c0c941b32af8b0ae7c0c125b8afdf2f1a07e1f800a95cd989c53ea69b7ab5fe2826480a8531b68afb0fe

          • C:\Windows\SysWOW64\nethtsrv.exe

            Filesize

            176KB

            MD5

            622379334f35faf92f82491433b6cf87

            SHA1

            f30ed3b36da90bc970ca83870f987fa25f2fbaaf

            SHA256

            813c2c5e9ef14bd706a7d6d1f926c459e90dd2fc89c60ed39257f0291f634156

            SHA512

            7718d4d9d2c11b04c7e7d03d58c91cca87eb511270cbd55a20ea5afb48107f2a8186ffc38507ff69205406927c871c33d2ac15501be573387fa80ddfa92c5883

          • C:\Windows\SysWOW64\nethtsrv.exe

            Filesize

            176KB

            MD5

            622379334f35faf92f82491433b6cf87

            SHA1

            f30ed3b36da90bc970ca83870f987fa25f2fbaaf

            SHA256

            813c2c5e9ef14bd706a7d6d1f926c459e90dd2fc89c60ed39257f0291f634156

            SHA512

            7718d4d9d2c11b04c7e7d03d58c91cca87eb511270cbd55a20ea5afb48107f2a8186ffc38507ff69205406927c871c33d2ac15501be573387fa80ddfa92c5883

          • C:\Windows\SysWOW64\netupdsrv.exe

            Filesize

            158KB

            MD5

            74f48b98ba3e52e576fe2ee8ae083c6d

            SHA1

            f3d1a411896e0b42298abe25c801f082dc12f538

            SHA256

            ba46ce2a1c9b23e4797de97be80fbef1e51efaa5426f3c80253531f48d1670c0

            SHA512

            5bedc79a5386d862bdd82cb22da0ef25a25d9422f338b87d789b89bedeb86a4a32457f5a0a6be386d5dcd290fd56d3e3990ff903c2646e30d9884cde65e5535d

          • C:\Windows\SysWOW64\netupdsrv.exe

            Filesize

            158KB

            MD5

            74f48b98ba3e52e576fe2ee8ae083c6d

            SHA1

            f3d1a411896e0b42298abe25c801f082dc12f538

            SHA256

            ba46ce2a1c9b23e4797de97be80fbef1e51efaa5426f3c80253531f48d1670c0

            SHA512

            5bedc79a5386d862bdd82cb22da0ef25a25d9422f338b87d789b89bedeb86a4a32457f5a0a6be386d5dcd290fd56d3e3990ff903c2646e30d9884cde65e5535d

          • \Users\Admin\AppData\Local\Temp\nsy6CBA.tmp\System.dll

            Filesize

            11KB

            MD5

            c17103ae9072a06da581dec998343fc1

            SHA1

            b72148c6bdfaada8b8c3f950e610ee7cf1da1f8d

            SHA256

            dc58d8ad81cacb0c1ed72e33bff8f23ea40b5252b5bb55d393a0903e6819ae2f

            SHA512

            d32a71aaef18e993f28096d536e41c4d016850721b31171513ce28bbd805a54fd290b7c3e9d935f72e676a1acfb4f0dcc89d95040a0dd29f2b6975855c18986f

          • \Users\Admin\AppData\Local\Temp\nsy6CBA.tmp\nsExec.dll

            Filesize

            6KB

            MD5

            acc2b699edfea5bf5aae45aba3a41e96

            SHA1

            d2accf4d494e43ceb2cff69abe4dd17147d29cc2

            SHA256

            168a974eaa3f588d759db3f47c1a9fdc3494ba1fa1a73a84e5e3b2a4d58abd7e

            SHA512

            e29ea10ada98c71a18273b04f44f385b120d4e8473e441ce5748cfa44a23648814f2656f429b85440157988c88de776c6ac008dc38bf09cbb746c230a46c69fe

          • \Users\Admin\AppData\Local\Temp\nsy6CBA.tmp\nsExec.dll

            Filesize

            6KB

            MD5

            acc2b699edfea5bf5aae45aba3a41e96

            SHA1

            d2accf4d494e43ceb2cff69abe4dd17147d29cc2

            SHA256

            168a974eaa3f588d759db3f47c1a9fdc3494ba1fa1a73a84e5e3b2a4d58abd7e

            SHA512

            e29ea10ada98c71a18273b04f44f385b120d4e8473e441ce5748cfa44a23648814f2656f429b85440157988c88de776c6ac008dc38bf09cbb746c230a46c69fe

          • \Users\Admin\AppData\Local\Temp\nsy6CBA.tmp\nsExec.dll

            Filesize

            6KB

            MD5

            acc2b699edfea5bf5aae45aba3a41e96

            SHA1

            d2accf4d494e43ceb2cff69abe4dd17147d29cc2

            SHA256

            168a974eaa3f588d759db3f47c1a9fdc3494ba1fa1a73a84e5e3b2a4d58abd7e

            SHA512

            e29ea10ada98c71a18273b04f44f385b120d4e8473e441ce5748cfa44a23648814f2656f429b85440157988c88de776c6ac008dc38bf09cbb746c230a46c69fe

          • \Users\Admin\AppData\Local\Temp\nsy6CBA.tmp\nsExec.dll

            Filesize

            6KB

            MD5

            acc2b699edfea5bf5aae45aba3a41e96

            SHA1

            d2accf4d494e43ceb2cff69abe4dd17147d29cc2

            SHA256

            168a974eaa3f588d759db3f47c1a9fdc3494ba1fa1a73a84e5e3b2a4d58abd7e

            SHA512

            e29ea10ada98c71a18273b04f44f385b120d4e8473e441ce5748cfa44a23648814f2656f429b85440157988c88de776c6ac008dc38bf09cbb746c230a46c69fe

          • \Windows\SysWOW64\hfnapi.dll

            Filesize

            106KB

            MD5

            05ccebcddfaeefdb4c5ba6e3fd215be3

            SHA1

            a97db643b99aab959b1cdb71c6337a142ad026d4

            SHA256

            910e08035ecdf608d2da0524a52205c69184926f1560df3130848e3eca9e6fb0

            SHA512

            36f668b0dabc6b598f95803da29d6d9ccf74429a9292e1bf3740997c9dabe2beab0ee3f5045d3e50c457ada35fb5b81101b3faf3ae4c817d272a43277382de9d

          • \Windows\SysWOW64\hfnapi.dll

            Filesize

            106KB

            MD5

            05ccebcddfaeefdb4c5ba6e3fd215be3

            SHA1

            a97db643b99aab959b1cdb71c6337a142ad026d4

            SHA256

            910e08035ecdf608d2da0524a52205c69184926f1560df3130848e3eca9e6fb0

            SHA512

            36f668b0dabc6b598f95803da29d6d9ccf74429a9292e1bf3740997c9dabe2beab0ee3f5045d3e50c457ada35fb5b81101b3faf3ae4c817d272a43277382de9d

          • \Windows\SysWOW64\hfnapi.dll

            Filesize

            106KB

            MD5

            05ccebcddfaeefdb4c5ba6e3fd215be3

            SHA1

            a97db643b99aab959b1cdb71c6337a142ad026d4

            SHA256

            910e08035ecdf608d2da0524a52205c69184926f1560df3130848e3eca9e6fb0

            SHA512

            36f668b0dabc6b598f95803da29d6d9ccf74429a9292e1bf3740997c9dabe2beab0ee3f5045d3e50c457ada35fb5b81101b3faf3ae4c817d272a43277382de9d

          • \Windows\SysWOW64\hfpapi.dll

            Filesize

            244KB

            MD5

            5e74b7c65f7af46c4f1332a31e023cdd

            SHA1

            54b75cdf84fc60bfe7ce607b102337624979e900

            SHA256

            1a31bb38e07cbfb268f272369dfc434c6e2dba9027271368f3112e9ee3508855

            SHA512

            1a7e3e6165d8b9791749c402e2e251dd2518463c959bf9b4e709fca0d5df92be2926d8cd2884b78f0d0898c6d385c8773a8bd12991a64c28e0ac77af91cb131c

          • \Windows\SysWOW64\hfpapi.dll

            Filesize

            244KB

            MD5

            5e74b7c65f7af46c4f1332a31e023cdd

            SHA1

            54b75cdf84fc60bfe7ce607b102337624979e900

            SHA256

            1a31bb38e07cbfb268f272369dfc434c6e2dba9027271368f3112e9ee3508855

            SHA512

            1a7e3e6165d8b9791749c402e2e251dd2518463c959bf9b4e709fca0d5df92be2926d8cd2884b78f0d0898c6d385c8773a8bd12991a64c28e0ac77af91cb131c

          • \Windows\SysWOW64\installd.exe

            Filesize

            108KB

            MD5

            2c729b8806720c64a8e00ecc69098487

            SHA1

            3655422efcf4018093828044021361e0d473592f

            SHA256

            76ee6f8d269bd135beeb9438dee27342c08ed7d81137ad0897272f0bb07d5076

            SHA512

            353b5d5960d8b7cf989b0ad2856d7a4b3e8b0cfe32e3c0c941b32af8b0ae7c0c125b8afdf2f1a07e1f800a95cd989c53ea69b7ab5fe2826480a8531b68afb0fe

          • \Windows\SysWOW64\nethtsrv.exe

            Filesize

            176KB

            MD5

            622379334f35faf92f82491433b6cf87

            SHA1

            f30ed3b36da90bc970ca83870f987fa25f2fbaaf

            SHA256

            813c2c5e9ef14bd706a7d6d1f926c459e90dd2fc89c60ed39257f0291f634156

            SHA512

            7718d4d9d2c11b04c7e7d03d58c91cca87eb511270cbd55a20ea5afb48107f2a8186ffc38507ff69205406927c871c33d2ac15501be573387fa80ddfa92c5883

          • \Windows\SysWOW64\netupdsrv.exe

            Filesize

            158KB

            MD5

            74f48b98ba3e52e576fe2ee8ae083c6d

            SHA1

            f3d1a411896e0b42298abe25c801f082dc12f538

            SHA256

            ba46ce2a1c9b23e4797de97be80fbef1e51efaa5426f3c80253531f48d1670c0

            SHA512

            5bedc79a5386d862bdd82cb22da0ef25a25d9422f338b87d789b89bedeb86a4a32457f5a0a6be386d5dcd290fd56d3e3990ff903c2646e30d9884cde65e5535d

          • memory/824-80-0x0000000000000000-mapping.dmp

          • memory/940-61-0x0000000000000000-mapping.dmp

          • memory/1012-86-0x0000000000000000-mapping.dmp

          • memory/1416-81-0x0000000000000000-mapping.dmp

          • memory/1444-64-0x0000000000000000-mapping.dmp

          • memory/1488-59-0x0000000000000000-mapping.dmp

          • memory/1536-76-0x0000000000000000-mapping.dmp

          • memory/1664-87-0x0000000000000000-mapping.dmp

          • memory/1704-70-0x0000000000000000-mapping.dmp

          • memory/1732-62-0x0000000000000000-mapping.dmp

          • memory/1764-54-0x0000000075FC1000-0x0000000075FC3000-memory.dmp

            Filesize

            8KB

          • memory/1764-55-0x0000000000360000-0x00000000007BE000-memory.dmp

            Filesize

            4.4MB

          • memory/1764-90-0x0000000000360000-0x00000000007BE000-memory.dmp

            Filesize

            4.4MB

          • memory/2020-58-0x0000000000000000-mapping.dmp