Analysis

  • max time kernel
    63s
  • max time network
    34s
  • platform
    windows7_x64
  • resource
    win7-20221111-en
  • resource tags

    arch:x64arch:x86image:win7-20221111-enlocale:en-usos:windows7-x64system
  • submitted
    23-11-2022 10:54

General

  • Target

    9ce3c56cf28d7e00c14035be4117d670073b04e5ee743396b29e177a9714a87c.exe

  • Size

    447KB

  • MD5

    a8cb88a784eaa6dc2740afb890302929

  • SHA1

    cd04c4e64ad3d9240a8540e0024f01a8fd94402e

  • SHA256

    9ce3c56cf28d7e00c14035be4117d670073b04e5ee743396b29e177a9714a87c

  • SHA512

    3444eba41f8d3a3b286706141b070f4760872880ecc576d433fefd251816575156dffee049eeed13535669fbf17b7180e93dce96a554a918723f1a06608fb4d0

  • SSDEEP

    12288:kZL1y+C1V2QHdT9fND7GzyCZYRWEHHYfs/io75:kOnHdTlN/T8YRWEr/X5

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\9ce3c56cf28d7e00c14035be4117d670073b04e5ee743396b29e177a9714a87c.exe
    "C:\Users\Admin\AppData\Local\Temp\9ce3c56cf28d7e00c14035be4117d670073b04e5ee743396b29e177a9714a87c.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:872
    • C:\Windows\SysWOW64\net.exe
      net stop nethttpservice
      2⤵
      • Suspicious use of WriteProcessMemory
      PID:1640
      • C:\Windows\SysWOW64\net1.exe
        C:\Windows\system32\net1 stop nethttpservice
        3⤵
          PID:1100
      • C:\Windows\SysWOW64\net.exe
        net stop serviceupdater
        2⤵
        • Suspicious use of WriteProcessMemory
        PID:568
        • C:\Windows\SysWOW64\net1.exe
          C:\Windows\system32\net1 stop serviceupdater
          3⤵
            PID:672
        • C:\Windows\SysWOW64\installd.exe
          "C:\Windows\system32\installd.exe" nethfdrv
          2⤵
          • Executes dropped EXE
          • Loads dropped DLL
          PID:1668
        • C:\Windows\SysWOW64\nethtsrv.exe
          "C:\Windows\system32\nethtsrv.exe" -nfdi
          2⤵
          • Executes dropped EXE
          • Loads dropped DLL
          PID:1736
        • C:\Windows\SysWOW64\netupdsrv.exe
          "C:\Windows\system32\netupdsrv.exe" -nfdi
          2⤵
          • Executes dropped EXE
          PID:340
        • C:\Windows\SysWOW64\net.exe
          net start nethttpservice
          2⤵
          • Suspicious use of WriteProcessMemory
          PID:688
          • C:\Windows\SysWOW64\net1.exe
            C:\Windows\system32\net1 start nethttpservice
            3⤵
              PID:544
          • C:\Windows\SysWOW64\net.exe
            net start serviceupdater
            2⤵
            • Suspicious use of WriteProcessMemory
            PID:1176
            • C:\Windows\SysWOW64\net1.exe
              C:\Windows\system32\net1 start serviceupdater
              3⤵
                PID:1744
          • C:\Windows\SysWOW64\nethtsrv.exe
            C:\Windows\SysWOW64\nethtsrv.exe
            1⤵
            • Executes dropped EXE
            • Loads dropped DLL
            • Suspicious use of AdjustPrivilegeToken
            PID:1244
          • C:\Windows\SysWOW64\netupdsrv.exe
            C:\Windows\SysWOW64\netupdsrv.exe
            1⤵
            • Executes dropped EXE
            PID:856

          Network

          MITRE ATT&CK Enterprise v6

          Replay Monitor

          Loading Replay Monitor...

          Downloads

          • C:\Windows\SysWOW64\hfnapi.dll

            Filesize

            106KB

            MD5

            f113f9daada686c4b7c8e3ed6f599664

            SHA1

            7f266afb07232dfca4d06aa022cd7258be2b0e25

            SHA256

            e74c7b7917aae2f9c0d15fa3e6e686f8b26b4ae693f3e1625a775879bf85cd83

            SHA512

            d22c6e927e58bf14aa0c8f2793cd4ecd3b507f1ae34e9c1ec08de750575109703ea316b6b8e693036753211e74f89232321ca0f7c1a85daa21b25a86393106a4

          • C:\Windows\SysWOW64\hfpapi.dll

            Filesize

            244KB

            MD5

            a3e9bb83effc302c76921c5d019b0abf

            SHA1

            3b71ed32c4a6cb9e61d2ede67d653c7075072d27

            SHA256

            461b2263a6ec66bb55c4ec75a8b6eb580213f2f841942a82aca5ad95055441dc

            SHA512

            4c2ed7ee8f1233187b714c3dcf613ac9a24e0c2c767e88a08f9c6ebaef452bd10a2fcfd018d1ec0dc9757a3eb2846edf268bc6b2a24f26d7f666b7d5ad62ed94

          • C:\Windows\SysWOW64\installd.exe

            Filesize

            108KB

            MD5

            e2bbff5e5e2a8f4fb488350f4216faee

            SHA1

            b77c3ae3b3d77f64209a5029d4770dfa7f0b9415

            SHA256

            c9e765a25e48d370b64e8fe17766e3f334b8114f3ec478dab5fd751d3e94ae29

            SHA512

            f18791c42e7cf164dc587d1a5a8459a7a8f4966e886124870fba1389cdb66ac8e6a365721609f9719b5c96cf153488bcbb25d645bd8d92efb54fd9b8f4f1b5cc

          • C:\Windows\SysWOW64\nethtsrv.exe

            Filesize

            176KB

            MD5

            b59951a3c9e2acf6a9977264f17855e3

            SHA1

            38f8162c8f311e53c04399803bd8fc73b557ca4e

            SHA256

            6703465f9fa542bd171acf70bcc4cee05204dba0a74c3a59e77bd79695319d1c

            SHA512

            bdcbc0fadb9fa318d996547af5553d97fc73123a8b588ad51010f8260b41c4fe4c609eb74d9dfc7fe2985e09f7293f3717c2bef378545dce0b15db74dd28314e

          • C:\Windows\SysWOW64\nethtsrv.exe

            Filesize

            176KB

            MD5

            b59951a3c9e2acf6a9977264f17855e3

            SHA1

            38f8162c8f311e53c04399803bd8fc73b557ca4e

            SHA256

            6703465f9fa542bd171acf70bcc4cee05204dba0a74c3a59e77bd79695319d1c

            SHA512

            bdcbc0fadb9fa318d996547af5553d97fc73123a8b588ad51010f8260b41c4fe4c609eb74d9dfc7fe2985e09f7293f3717c2bef378545dce0b15db74dd28314e

          • C:\Windows\SysWOW64\netupdsrv.exe

            Filesize

            158KB

            MD5

            8e2abe360be2329ba1ca7e78e1de0f7d

            SHA1

            ae10d1444464bd1d4db51990328baefddb5056da

            SHA256

            2064f5043da63c6466656aaf214a5632b0fc605fd27d68eb18db15ca61700351

            SHA512

            b10f3170fef58c509cbed7f84c04e2cee202157de607b2d946aa2ad066829525491d5c4982d15e4a9d02980f518475fce58cf59d97e30a0faf50f220e5baa004

          • C:\Windows\SysWOW64\netupdsrv.exe

            Filesize

            158KB

            MD5

            8e2abe360be2329ba1ca7e78e1de0f7d

            SHA1

            ae10d1444464bd1d4db51990328baefddb5056da

            SHA256

            2064f5043da63c6466656aaf214a5632b0fc605fd27d68eb18db15ca61700351

            SHA512

            b10f3170fef58c509cbed7f84c04e2cee202157de607b2d946aa2ad066829525491d5c4982d15e4a9d02980f518475fce58cf59d97e30a0faf50f220e5baa004

          • \Users\Admin\AppData\Local\Temp\nseF422.tmp\System.dll

            Filesize

            11KB

            MD5

            c17103ae9072a06da581dec998343fc1

            SHA1

            b72148c6bdfaada8b8c3f950e610ee7cf1da1f8d

            SHA256

            dc58d8ad81cacb0c1ed72e33bff8f23ea40b5252b5bb55d393a0903e6819ae2f

            SHA512

            d32a71aaef18e993f28096d536e41c4d016850721b31171513ce28bbd805a54fd290b7c3e9d935f72e676a1acfb4f0dcc89d95040a0dd29f2b6975855c18986f

          • \Users\Admin\AppData\Local\Temp\nseF422.tmp\nsExec.dll

            Filesize

            6KB

            MD5

            acc2b699edfea5bf5aae45aba3a41e96

            SHA1

            d2accf4d494e43ceb2cff69abe4dd17147d29cc2

            SHA256

            168a974eaa3f588d759db3f47c1a9fdc3494ba1fa1a73a84e5e3b2a4d58abd7e

            SHA512

            e29ea10ada98c71a18273b04f44f385b120d4e8473e441ce5748cfa44a23648814f2656f429b85440157988c88de776c6ac008dc38bf09cbb746c230a46c69fe

          • \Users\Admin\AppData\Local\Temp\nseF422.tmp\nsExec.dll

            Filesize

            6KB

            MD5

            acc2b699edfea5bf5aae45aba3a41e96

            SHA1

            d2accf4d494e43ceb2cff69abe4dd17147d29cc2

            SHA256

            168a974eaa3f588d759db3f47c1a9fdc3494ba1fa1a73a84e5e3b2a4d58abd7e

            SHA512

            e29ea10ada98c71a18273b04f44f385b120d4e8473e441ce5748cfa44a23648814f2656f429b85440157988c88de776c6ac008dc38bf09cbb746c230a46c69fe

          • \Users\Admin\AppData\Local\Temp\nseF422.tmp\nsExec.dll

            Filesize

            6KB

            MD5

            acc2b699edfea5bf5aae45aba3a41e96

            SHA1

            d2accf4d494e43ceb2cff69abe4dd17147d29cc2

            SHA256

            168a974eaa3f588d759db3f47c1a9fdc3494ba1fa1a73a84e5e3b2a4d58abd7e

            SHA512

            e29ea10ada98c71a18273b04f44f385b120d4e8473e441ce5748cfa44a23648814f2656f429b85440157988c88de776c6ac008dc38bf09cbb746c230a46c69fe

          • \Users\Admin\AppData\Local\Temp\nseF422.tmp\nsExec.dll

            Filesize

            6KB

            MD5

            acc2b699edfea5bf5aae45aba3a41e96

            SHA1

            d2accf4d494e43ceb2cff69abe4dd17147d29cc2

            SHA256

            168a974eaa3f588d759db3f47c1a9fdc3494ba1fa1a73a84e5e3b2a4d58abd7e

            SHA512

            e29ea10ada98c71a18273b04f44f385b120d4e8473e441ce5748cfa44a23648814f2656f429b85440157988c88de776c6ac008dc38bf09cbb746c230a46c69fe

          • \Windows\SysWOW64\hfnapi.dll

            Filesize

            106KB

            MD5

            f113f9daada686c4b7c8e3ed6f599664

            SHA1

            7f266afb07232dfca4d06aa022cd7258be2b0e25

            SHA256

            e74c7b7917aae2f9c0d15fa3e6e686f8b26b4ae693f3e1625a775879bf85cd83

            SHA512

            d22c6e927e58bf14aa0c8f2793cd4ecd3b507f1ae34e9c1ec08de750575109703ea316b6b8e693036753211e74f89232321ca0f7c1a85daa21b25a86393106a4

          • \Windows\SysWOW64\hfnapi.dll

            Filesize

            106KB

            MD5

            f113f9daada686c4b7c8e3ed6f599664

            SHA1

            7f266afb07232dfca4d06aa022cd7258be2b0e25

            SHA256

            e74c7b7917aae2f9c0d15fa3e6e686f8b26b4ae693f3e1625a775879bf85cd83

            SHA512

            d22c6e927e58bf14aa0c8f2793cd4ecd3b507f1ae34e9c1ec08de750575109703ea316b6b8e693036753211e74f89232321ca0f7c1a85daa21b25a86393106a4

          • \Windows\SysWOW64\hfnapi.dll

            Filesize

            106KB

            MD5

            f113f9daada686c4b7c8e3ed6f599664

            SHA1

            7f266afb07232dfca4d06aa022cd7258be2b0e25

            SHA256

            e74c7b7917aae2f9c0d15fa3e6e686f8b26b4ae693f3e1625a775879bf85cd83

            SHA512

            d22c6e927e58bf14aa0c8f2793cd4ecd3b507f1ae34e9c1ec08de750575109703ea316b6b8e693036753211e74f89232321ca0f7c1a85daa21b25a86393106a4

          • \Windows\SysWOW64\hfpapi.dll

            Filesize

            244KB

            MD5

            a3e9bb83effc302c76921c5d019b0abf

            SHA1

            3b71ed32c4a6cb9e61d2ede67d653c7075072d27

            SHA256

            461b2263a6ec66bb55c4ec75a8b6eb580213f2f841942a82aca5ad95055441dc

            SHA512

            4c2ed7ee8f1233187b714c3dcf613ac9a24e0c2c767e88a08f9c6ebaef452bd10a2fcfd018d1ec0dc9757a3eb2846edf268bc6b2a24f26d7f666b7d5ad62ed94

          • \Windows\SysWOW64\hfpapi.dll

            Filesize

            244KB

            MD5

            a3e9bb83effc302c76921c5d019b0abf

            SHA1

            3b71ed32c4a6cb9e61d2ede67d653c7075072d27

            SHA256

            461b2263a6ec66bb55c4ec75a8b6eb580213f2f841942a82aca5ad95055441dc

            SHA512

            4c2ed7ee8f1233187b714c3dcf613ac9a24e0c2c767e88a08f9c6ebaef452bd10a2fcfd018d1ec0dc9757a3eb2846edf268bc6b2a24f26d7f666b7d5ad62ed94

          • \Windows\SysWOW64\installd.exe

            Filesize

            108KB

            MD5

            e2bbff5e5e2a8f4fb488350f4216faee

            SHA1

            b77c3ae3b3d77f64209a5029d4770dfa7f0b9415

            SHA256

            c9e765a25e48d370b64e8fe17766e3f334b8114f3ec478dab5fd751d3e94ae29

            SHA512

            f18791c42e7cf164dc587d1a5a8459a7a8f4966e886124870fba1389cdb66ac8e6a365721609f9719b5c96cf153488bcbb25d645bd8d92efb54fd9b8f4f1b5cc

          • \Windows\SysWOW64\nethtsrv.exe

            Filesize

            176KB

            MD5

            b59951a3c9e2acf6a9977264f17855e3

            SHA1

            38f8162c8f311e53c04399803bd8fc73b557ca4e

            SHA256

            6703465f9fa542bd171acf70bcc4cee05204dba0a74c3a59e77bd79695319d1c

            SHA512

            bdcbc0fadb9fa318d996547af5553d97fc73123a8b588ad51010f8260b41c4fe4c609eb74d9dfc7fe2985e09f7293f3717c2bef378545dce0b15db74dd28314e

          • \Windows\SysWOW64\netupdsrv.exe

            Filesize

            158KB

            MD5

            8e2abe360be2329ba1ca7e78e1de0f7d

            SHA1

            ae10d1444464bd1d4db51990328baefddb5056da

            SHA256

            2064f5043da63c6466656aaf214a5632b0fc605fd27d68eb18db15ca61700351

            SHA512

            b10f3170fef58c509cbed7f84c04e2cee202157de607b2d946aa2ad066829525491d5c4982d15e4a9d02980f518475fce58cf59d97e30a0faf50f220e5baa004

          • memory/340-75-0x0000000000000000-mapping.dmp

          • memory/544-80-0x0000000000000000-mapping.dmp

          • memory/568-60-0x0000000000000000-mapping.dmp

          • memory/672-61-0x0000000000000000-mapping.dmp

          • memory/688-79-0x0000000000000000-mapping.dmp

          • memory/872-54-0x0000000075F81000-0x0000000075F83000-memory.dmp

            Filesize

            8KB

          • memory/1100-58-0x0000000000000000-mapping.dmp

          • memory/1176-85-0x0000000000000000-mapping.dmp

          • memory/1640-57-0x0000000000000000-mapping.dmp

          • memory/1668-63-0x0000000000000000-mapping.dmp

          • memory/1736-69-0x0000000000000000-mapping.dmp

          • memory/1744-86-0x0000000000000000-mapping.dmp