Analysis

  • max time kernel
    34s
  • 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 11:00

General

  • Target

    0036a6cdc5d47ace18c2f5a5eca1128cc18b72a29dd2a6ba3833c338bd68783e.exe

  • Size

    446KB

  • MD5

    d8f8b441d41b20a0b5167639f0b78216

  • SHA1

    60d66c6bc5f4940820ee89b5ed887036ef20ac66

  • SHA256

    0036a6cdc5d47ace18c2f5a5eca1128cc18b72a29dd2a6ba3833c338bd68783e

  • SHA512

    922285e118d554594b79c1b252e656af7ad21675ce7d924fab85da6283dd4a241549f8037a80ce36e278d66ec38e86de83294f342f06e41f62a6649002b8b1ca

  • SSDEEP

    12288:DjwGOIgDeakabHO9ay5TXhCujeWeOB7KBNKhkh8pc:DjwGWeMbH5kTXxeHOU2Sv

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\0036a6cdc5d47ace18c2f5a5eca1128cc18b72a29dd2a6ba3833c338bd68783e.exe
    "C:\Users\Admin\AppData\Local\Temp\0036a6cdc5d47ace18c2f5a5eca1128cc18b72a29dd2a6ba3833c338bd68783e.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:1272
      • C:\Windows\SysWOW64\net.exe
        net stop serviceupdater
        2⤵
        • Suspicious use of WriteProcessMemory
        PID:936
        • C:\Windows\SysWOW64\net1.exe
          C:\Windows\system32\net1 stop serviceupdater
          3⤵
            PID:1168
        • C:\Windows\SysWOW64\installd.exe
          "C:\Windows\system32\installd.exe" nethfdrv
          2⤵
          • Executes dropped EXE
          • Loads dropped DLL
          PID:1328
        • C:\Windows\SysWOW64\nethtsrv.exe
          "C:\Windows\system32\nethtsrv.exe" -nfdi
          2⤵
          • Executes dropped EXE
          • Loads dropped DLL
          PID:1352
        • C:\Windows\SysWOW64\netupdsrv.exe
          "C:\Windows\system32\netupdsrv.exe" -nfdi
          2⤵
          • Executes dropped EXE
          PID:276
        • C:\Windows\SysWOW64\net.exe
          net start nethttpservice
          2⤵
          • Suspicious use of WriteProcessMemory
          PID:1144
          • C:\Windows\SysWOW64\net1.exe
            C:\Windows\system32\net1 start nethttpservice
            3⤵
              PID:832
          • C:\Windows\SysWOW64\net.exe
            net start serviceupdater
            2⤵
            • Suspicious use of WriteProcessMemory
            PID:572
            • C:\Windows\SysWOW64\net1.exe
              C:\Windows\system32\net1 start serviceupdater
              3⤵
                PID:888
          • C:\Windows\SysWOW64\nethtsrv.exe
            C:\Windows\SysWOW64\nethtsrv.exe
            1⤵
            • Executes dropped EXE
            • Loads dropped DLL
            • Suspicious use of AdjustPrivilegeToken
            PID:2024
          • 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

            796cdcdd3f4aca0a631c81c61dda5cf9

            SHA1

            363a1afd8add274e6e3c40946f51a8d329020b71

            SHA256

            9dde561f2756fc24c632bc2e5a9a0eff4f6440ec43ae34d86c45954b33b96765

            SHA512

            efe3668610a1c0227a2bd0c552fbc2a5477e1dee617ed905985fb5e35f0b3a31741557487e5cb0a7f02a09b0187b5bd302f13418776a2dcec750103f7ccf2be6

          • C:\Windows\SysWOW64\hfpapi.dll

            Filesize

            244KB

            MD5

            6b4640978e918d66a8cc863bd13460b8

            SHA1

            1a5c571871076db2b03b72280e72893055c47c25

            SHA256

            92a75e38b266e459ede957ff7c31356f6a404d1f370d19dfcda3c3321fb6dd6c

            SHA512

            1cf82f62430b82057234d95f68486e2c7f2e036fe373cea8027176d17316f5007aa74d05be45ad2783b1d15b87662835b05a94cd583df8cc0bcb13608f8cf0f8

          • C:\Windows\SysWOW64\installd.exe

            Filesize

            108KB

            MD5

            4ac57f512b9b73733e1affdf6f527b97

            SHA1

            ea1720e39f275559e787c3dec182dfe6b7fbed0c

            SHA256

            502ed0851e7de47265af699957c38248e8ec1f6f8292334c5f3f16fc7d55863e

            SHA512

            70673bc874589b109eebd2d4d97a87bf4c517c9cbe3bf945e6695d6549aa23c98877c10d309fae504a130ecd7e3a7aa10778eb5b9fae7b01b8152060e34f11b3

          • C:\Windows\SysWOW64\nethtsrv.exe

            Filesize

            176KB

            MD5

            c1c73af430c354a6d5a44447a2865a8d

            SHA1

            61a08e976ceb3658eb954444b3ff4464c83eb9f6

            SHA256

            cffca2cfe299ebb01a10f982909d2def5a2706f4a030b0d1d9f525f679cb6443

            SHA512

            82826f1973141cbf08e7ef5cb478af40884c8bdb15d40d0ac3e99df376c1bdf286faefe81f35db3b290c20087687e6c94c9d6f2b1bac45dab889003299cbdf7f

          • C:\Windows\SysWOW64\nethtsrv.exe

            Filesize

            176KB

            MD5

            c1c73af430c354a6d5a44447a2865a8d

            SHA1

            61a08e976ceb3658eb954444b3ff4464c83eb9f6

            SHA256

            cffca2cfe299ebb01a10f982909d2def5a2706f4a030b0d1d9f525f679cb6443

            SHA512

            82826f1973141cbf08e7ef5cb478af40884c8bdb15d40d0ac3e99df376c1bdf286faefe81f35db3b290c20087687e6c94c9d6f2b1bac45dab889003299cbdf7f

          • C:\Windows\SysWOW64\netupdsrv.exe

            Filesize

            158KB

            MD5

            04952b0cc937802c2f8fb6d17e101cef

            SHA1

            52beec238c4d042cf53c56a021d716c0126249a0

            SHA256

            802c54a3a5db0c94053d93263b2281606ac731cbc6cd56d0651593d0b4cf4590

            SHA512

            11b0b16be89961d8222fa335abad1c58f69f07969c7f707d1659582dbf15f3dc5e45fa7b595d524b772adf7ac0ef2c94d1cc988ad824209b38c9bcbf4aafa59c

          • C:\Windows\SysWOW64\netupdsrv.exe

            Filesize

            158KB

            MD5

            04952b0cc937802c2f8fb6d17e101cef

            SHA1

            52beec238c4d042cf53c56a021d716c0126249a0

            SHA256

            802c54a3a5db0c94053d93263b2281606ac731cbc6cd56d0651593d0b4cf4590

            SHA512

            11b0b16be89961d8222fa335abad1c58f69f07969c7f707d1659582dbf15f3dc5e45fa7b595d524b772adf7ac0ef2c94d1cc988ad824209b38c9bcbf4aafa59c

          • \Users\Admin\AppData\Local\Temp\nsj7AAF.tmp\System.dll

            Filesize

            11KB

            MD5

            c17103ae9072a06da581dec998343fc1

            SHA1

            b72148c6bdfaada8b8c3f950e610ee7cf1da1f8d

            SHA256

            dc58d8ad81cacb0c1ed72e33bff8f23ea40b5252b5bb55d393a0903e6819ae2f

            SHA512

            d32a71aaef18e993f28096d536e41c4d016850721b31171513ce28bbd805a54fd290b7c3e9d935f72e676a1acfb4f0dcc89d95040a0dd29f2b6975855c18986f

          • \Users\Admin\AppData\Local\Temp\nsj7AAF.tmp\nsExec.dll

            Filesize

            6KB

            MD5

            acc2b699edfea5bf5aae45aba3a41e96

            SHA1

            d2accf4d494e43ceb2cff69abe4dd17147d29cc2

            SHA256

            168a974eaa3f588d759db3f47c1a9fdc3494ba1fa1a73a84e5e3b2a4d58abd7e

            SHA512

            e29ea10ada98c71a18273b04f44f385b120d4e8473e441ce5748cfa44a23648814f2656f429b85440157988c88de776c6ac008dc38bf09cbb746c230a46c69fe

          • \Users\Admin\AppData\Local\Temp\nsj7AAF.tmp\nsExec.dll

            Filesize

            6KB

            MD5

            acc2b699edfea5bf5aae45aba3a41e96

            SHA1

            d2accf4d494e43ceb2cff69abe4dd17147d29cc2

            SHA256

            168a974eaa3f588d759db3f47c1a9fdc3494ba1fa1a73a84e5e3b2a4d58abd7e

            SHA512

            e29ea10ada98c71a18273b04f44f385b120d4e8473e441ce5748cfa44a23648814f2656f429b85440157988c88de776c6ac008dc38bf09cbb746c230a46c69fe

          • \Users\Admin\AppData\Local\Temp\nsj7AAF.tmp\nsExec.dll

            Filesize

            6KB

            MD5

            acc2b699edfea5bf5aae45aba3a41e96

            SHA1

            d2accf4d494e43ceb2cff69abe4dd17147d29cc2

            SHA256

            168a974eaa3f588d759db3f47c1a9fdc3494ba1fa1a73a84e5e3b2a4d58abd7e

            SHA512

            e29ea10ada98c71a18273b04f44f385b120d4e8473e441ce5748cfa44a23648814f2656f429b85440157988c88de776c6ac008dc38bf09cbb746c230a46c69fe

          • \Users\Admin\AppData\Local\Temp\nsj7AAF.tmp\nsExec.dll

            Filesize

            6KB

            MD5

            acc2b699edfea5bf5aae45aba3a41e96

            SHA1

            d2accf4d494e43ceb2cff69abe4dd17147d29cc2

            SHA256

            168a974eaa3f588d759db3f47c1a9fdc3494ba1fa1a73a84e5e3b2a4d58abd7e

            SHA512

            e29ea10ada98c71a18273b04f44f385b120d4e8473e441ce5748cfa44a23648814f2656f429b85440157988c88de776c6ac008dc38bf09cbb746c230a46c69fe

          • \Windows\SysWOW64\hfnapi.dll

            Filesize

            106KB

            MD5

            796cdcdd3f4aca0a631c81c61dda5cf9

            SHA1

            363a1afd8add274e6e3c40946f51a8d329020b71

            SHA256

            9dde561f2756fc24c632bc2e5a9a0eff4f6440ec43ae34d86c45954b33b96765

            SHA512

            efe3668610a1c0227a2bd0c552fbc2a5477e1dee617ed905985fb5e35f0b3a31741557487e5cb0a7f02a09b0187b5bd302f13418776a2dcec750103f7ccf2be6

          • \Windows\SysWOW64\hfnapi.dll

            Filesize

            106KB

            MD5

            796cdcdd3f4aca0a631c81c61dda5cf9

            SHA1

            363a1afd8add274e6e3c40946f51a8d329020b71

            SHA256

            9dde561f2756fc24c632bc2e5a9a0eff4f6440ec43ae34d86c45954b33b96765

            SHA512

            efe3668610a1c0227a2bd0c552fbc2a5477e1dee617ed905985fb5e35f0b3a31741557487e5cb0a7f02a09b0187b5bd302f13418776a2dcec750103f7ccf2be6

          • \Windows\SysWOW64\hfnapi.dll

            Filesize

            106KB

            MD5

            796cdcdd3f4aca0a631c81c61dda5cf9

            SHA1

            363a1afd8add274e6e3c40946f51a8d329020b71

            SHA256

            9dde561f2756fc24c632bc2e5a9a0eff4f6440ec43ae34d86c45954b33b96765

            SHA512

            efe3668610a1c0227a2bd0c552fbc2a5477e1dee617ed905985fb5e35f0b3a31741557487e5cb0a7f02a09b0187b5bd302f13418776a2dcec750103f7ccf2be6

          • \Windows\SysWOW64\hfpapi.dll

            Filesize

            244KB

            MD5

            6b4640978e918d66a8cc863bd13460b8

            SHA1

            1a5c571871076db2b03b72280e72893055c47c25

            SHA256

            92a75e38b266e459ede957ff7c31356f6a404d1f370d19dfcda3c3321fb6dd6c

            SHA512

            1cf82f62430b82057234d95f68486e2c7f2e036fe373cea8027176d17316f5007aa74d05be45ad2783b1d15b87662835b05a94cd583df8cc0bcb13608f8cf0f8

          • \Windows\SysWOW64\hfpapi.dll

            Filesize

            244KB

            MD5

            6b4640978e918d66a8cc863bd13460b8

            SHA1

            1a5c571871076db2b03b72280e72893055c47c25

            SHA256

            92a75e38b266e459ede957ff7c31356f6a404d1f370d19dfcda3c3321fb6dd6c

            SHA512

            1cf82f62430b82057234d95f68486e2c7f2e036fe373cea8027176d17316f5007aa74d05be45ad2783b1d15b87662835b05a94cd583df8cc0bcb13608f8cf0f8

          • \Windows\SysWOW64\installd.exe

            Filesize

            108KB

            MD5

            4ac57f512b9b73733e1affdf6f527b97

            SHA1

            ea1720e39f275559e787c3dec182dfe6b7fbed0c

            SHA256

            502ed0851e7de47265af699957c38248e8ec1f6f8292334c5f3f16fc7d55863e

            SHA512

            70673bc874589b109eebd2d4d97a87bf4c517c9cbe3bf945e6695d6549aa23c98877c10d309fae504a130ecd7e3a7aa10778eb5b9fae7b01b8152060e34f11b3

          • \Windows\SysWOW64\nethtsrv.exe

            Filesize

            176KB

            MD5

            c1c73af430c354a6d5a44447a2865a8d

            SHA1

            61a08e976ceb3658eb954444b3ff4464c83eb9f6

            SHA256

            cffca2cfe299ebb01a10f982909d2def5a2706f4a030b0d1d9f525f679cb6443

            SHA512

            82826f1973141cbf08e7ef5cb478af40884c8bdb15d40d0ac3e99df376c1bdf286faefe81f35db3b290c20087687e6c94c9d6f2b1bac45dab889003299cbdf7f

          • \Windows\SysWOW64\netupdsrv.exe

            Filesize

            158KB

            MD5

            04952b0cc937802c2f8fb6d17e101cef

            SHA1

            52beec238c4d042cf53c56a021d716c0126249a0

            SHA256

            802c54a3a5db0c94053d93263b2281606ac731cbc6cd56d0651593d0b4cf4590

            SHA512

            11b0b16be89961d8222fa335abad1c58f69f07969c7f707d1659582dbf15f3dc5e45fa7b595d524b772adf7ac0ef2c94d1cc988ad824209b38c9bcbf4aafa59c

          • memory/276-75-0x0000000000000000-mapping.dmp

          • memory/572-85-0x0000000000000000-mapping.dmp

          • memory/832-80-0x0000000000000000-mapping.dmp

          • memory/888-86-0x0000000000000000-mapping.dmp

          • memory/936-60-0x0000000000000000-mapping.dmp

          • memory/1144-79-0x0000000000000000-mapping.dmp

          • memory/1168-61-0x0000000000000000-mapping.dmp

          • memory/1272-58-0x0000000000000000-mapping.dmp

          • memory/1328-63-0x0000000000000000-mapping.dmp

          • memory/1352-69-0x0000000000000000-mapping.dmp

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

            Filesize

            8KB

          • memory/2020-57-0x0000000000000000-mapping.dmp