Analysis

  • max time kernel
    185s
  • max time network
    206s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20221111-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20221111-enlocale:en-usos:windows10-2004-x64system
  • submitted
    23-11-2022 10:34

General

  • Target

    0766cca1fab171e74c40e9ab3c234c647ffe90b541e4daeead39788f3eea84e7.exe

  • Size

    603KB

  • MD5

    d9cca46f23cc5086767a6afeaf1fab5d

  • SHA1

    7c9398fdcaa1b580492d2b3f73b4730a757aa6f7

  • SHA256

    0766cca1fab171e74c40e9ab3c234c647ffe90b541e4daeead39788f3eea84e7

  • SHA512

    f2da719860ac61ea5fcfac3dee4ed1ad5747f7b153982f15f965cfe15315f6b8de1e046807e54b1ea3f4418a6d79927ff3bb0507a91df15ee5a330154602318f

  • SSDEEP

    12288:oIny5DYT9Pjt5A5H+yDMmcNigO0KetI7I9A2kTSie9:mUT9rk+yUir5et5i

Score
8/10

Malware Config

Signatures

  • Drops file in Drivers directory 1 IoCs
  • Executes dropped EXE 5 IoCs
  • Loads dropped DLL 14 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.

  • Modifies data under HKEY_USERS 1 IoCs
  • Runs net.exe
  • Suspicious behavior: LoadsDriver 1 IoCs
  • Suspicious use of AdjustPrivilegeToken 1 IoCs
  • Suspicious use of WriteProcessMemory 33 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\0766cca1fab171e74c40e9ab3c234c647ffe90b541e4daeead39788f3eea84e7.exe
    "C:\Users\Admin\AppData\Local\Temp\0766cca1fab171e74c40e9ab3c234c647ffe90b541e4daeead39788f3eea84e7.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:4680
    • C:\Windows\SysWOW64\net.exe
      net stop nethttpservice
      2⤵
      • Suspicious use of WriteProcessMemory
      PID:3276
      • C:\Windows\SysWOW64\net1.exe
        C:\Windows\system32\net1 stop nethttpservice
        3⤵
          PID:5060
      • C:\Windows\SysWOW64\net.exe
        net stop serviceupdater
        2⤵
        • Suspicious use of WriteProcessMemory
        PID:2476
        • C:\Windows\SysWOW64\net1.exe
          C:\Windows\system32\net1 stop serviceupdater
          3⤵
            PID:3128
        • C:\Windows\SysWOW64\installd.exe
          "C:\Windows\system32\installd.exe" nethfdrv
          2⤵
          • Executes dropped EXE
          • Loads dropped DLL
          PID:1816
        • C:\Windows\SysWOW64\nethtsrv.exe
          "C:\Windows\system32\nethtsrv.exe" -nfdi
          2⤵
          • Executes dropped EXE
          • Loads dropped DLL
          PID:4372
        • C:\Windows\SysWOW64\netupdsrv.exe
          "C:\Windows\system32\netupdsrv.exe" -nfdi
          2⤵
          • Executes dropped EXE
          PID:2204
        • C:\Windows\SysWOW64\net.exe
          net start nethttpservice
          2⤵
          • Suspicious use of WriteProcessMemory
          PID:5048
          • C:\Windows\SysWOW64\net1.exe
            C:\Windows\system32\net1 start nethttpservice
            3⤵
              PID:2228
          • C:\Windows\SysWOW64\net.exe
            net start serviceupdater
            2⤵
            • Suspicious use of WriteProcessMemory
            PID:4764
            • C:\Windows\SysWOW64\net1.exe
              C:\Windows\system32\net1 start serviceupdater
              3⤵
                PID:500
          • C:\Windows\SysWOW64\nethtsrv.exe
            C:\Windows\SysWOW64\nethtsrv.exe
            1⤵
            • Executes dropped EXE
            • Loads dropped DLL
            • Modifies data under HKEY_USERS
            • Suspicious use of AdjustPrivilegeToken
            PID:2780
          • C:\Windows\SysWOW64\netupdsrv.exe
            C:\Windows\SysWOW64\netupdsrv.exe
            1⤵
            • Executes dropped EXE
            PID:4528

          Network

          MITRE ATT&CK Enterprise v6

          Replay Monitor

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          Downloads

          • C:\Users\Admin\AppData\Local\Temp\nsf3AB9.tmp\System.dll

            Filesize

            11KB

            MD5

            c17103ae9072a06da581dec998343fc1

            SHA1

            b72148c6bdfaada8b8c3f950e610ee7cf1da1f8d

            SHA256

            dc58d8ad81cacb0c1ed72e33bff8f23ea40b5252b5bb55d393a0903e6819ae2f

            SHA512

            d32a71aaef18e993f28096d536e41c4d016850721b31171513ce28bbd805a54fd290b7c3e9d935f72e676a1acfb4f0dcc89d95040a0dd29f2b6975855c18986f

          • C:\Users\Admin\AppData\Local\Temp\nsf3AB9.tmp\nsExec.dll

            Filesize

            6KB

            MD5

            acc2b699edfea5bf5aae45aba3a41e96

            SHA1

            d2accf4d494e43ceb2cff69abe4dd17147d29cc2

            SHA256

            168a974eaa3f588d759db3f47c1a9fdc3494ba1fa1a73a84e5e3b2a4d58abd7e

            SHA512

            e29ea10ada98c71a18273b04f44f385b120d4e8473e441ce5748cfa44a23648814f2656f429b85440157988c88de776c6ac008dc38bf09cbb746c230a46c69fe

          • C:\Users\Admin\AppData\Local\Temp\nsf3AB9.tmp\nsExec.dll

            Filesize

            6KB

            MD5

            acc2b699edfea5bf5aae45aba3a41e96

            SHA1

            d2accf4d494e43ceb2cff69abe4dd17147d29cc2

            SHA256

            168a974eaa3f588d759db3f47c1a9fdc3494ba1fa1a73a84e5e3b2a4d58abd7e

            SHA512

            e29ea10ada98c71a18273b04f44f385b120d4e8473e441ce5748cfa44a23648814f2656f429b85440157988c88de776c6ac008dc38bf09cbb746c230a46c69fe

          • C:\Users\Admin\AppData\Local\Temp\nsf3AB9.tmp\nsExec.dll

            Filesize

            6KB

            MD5

            acc2b699edfea5bf5aae45aba3a41e96

            SHA1

            d2accf4d494e43ceb2cff69abe4dd17147d29cc2

            SHA256

            168a974eaa3f588d759db3f47c1a9fdc3494ba1fa1a73a84e5e3b2a4d58abd7e

            SHA512

            e29ea10ada98c71a18273b04f44f385b120d4e8473e441ce5748cfa44a23648814f2656f429b85440157988c88de776c6ac008dc38bf09cbb746c230a46c69fe

          • C:\Users\Admin\AppData\Local\Temp\nsf3AB9.tmp\nsExec.dll

            Filesize

            6KB

            MD5

            acc2b699edfea5bf5aae45aba3a41e96

            SHA1

            d2accf4d494e43ceb2cff69abe4dd17147d29cc2

            SHA256

            168a974eaa3f588d759db3f47c1a9fdc3494ba1fa1a73a84e5e3b2a4d58abd7e

            SHA512

            e29ea10ada98c71a18273b04f44f385b120d4e8473e441ce5748cfa44a23648814f2656f429b85440157988c88de776c6ac008dc38bf09cbb746c230a46c69fe

          • C:\Users\Admin\AppData\Local\Temp\nsf3AB9.tmp\nsExec.dll

            Filesize

            6KB

            MD5

            acc2b699edfea5bf5aae45aba3a41e96

            SHA1

            d2accf4d494e43ceb2cff69abe4dd17147d29cc2

            SHA256

            168a974eaa3f588d759db3f47c1a9fdc3494ba1fa1a73a84e5e3b2a4d58abd7e

            SHA512

            e29ea10ada98c71a18273b04f44f385b120d4e8473e441ce5748cfa44a23648814f2656f429b85440157988c88de776c6ac008dc38bf09cbb746c230a46c69fe

          • C:\Users\Admin\AppData\Local\Temp\nsf3AB9.tmp\nsExec.dll

            Filesize

            6KB

            MD5

            acc2b699edfea5bf5aae45aba3a41e96

            SHA1

            d2accf4d494e43ceb2cff69abe4dd17147d29cc2

            SHA256

            168a974eaa3f588d759db3f47c1a9fdc3494ba1fa1a73a84e5e3b2a4d58abd7e

            SHA512

            e29ea10ada98c71a18273b04f44f385b120d4e8473e441ce5748cfa44a23648814f2656f429b85440157988c88de776c6ac008dc38bf09cbb746c230a46c69fe

          • C:\Users\Admin\AppData\Local\Temp\nsf3AB9.tmp\nsExec.dll

            Filesize

            6KB

            MD5

            acc2b699edfea5bf5aae45aba3a41e96

            SHA1

            d2accf4d494e43ceb2cff69abe4dd17147d29cc2

            SHA256

            168a974eaa3f588d759db3f47c1a9fdc3494ba1fa1a73a84e5e3b2a4d58abd7e

            SHA512

            e29ea10ada98c71a18273b04f44f385b120d4e8473e441ce5748cfa44a23648814f2656f429b85440157988c88de776c6ac008dc38bf09cbb746c230a46c69fe

          • C:\Users\Admin\AppData\Local\Temp\nsf3AB9.tmp\nsExec.dll

            Filesize

            6KB

            MD5

            acc2b699edfea5bf5aae45aba3a41e96

            SHA1

            d2accf4d494e43ceb2cff69abe4dd17147d29cc2

            SHA256

            168a974eaa3f588d759db3f47c1a9fdc3494ba1fa1a73a84e5e3b2a4d58abd7e

            SHA512

            e29ea10ada98c71a18273b04f44f385b120d4e8473e441ce5748cfa44a23648814f2656f429b85440157988c88de776c6ac008dc38bf09cbb746c230a46c69fe

          • C:\Windows\SysWOW64\hfnapi.dll

            Filesize

            106KB

            MD5

            c89d22139866bcf08d95be326c0e1659

            SHA1

            5a01d6c68fa8c72cfb6aaaa3c574553d3b27e038

            SHA256

            0b9a13f647946afd16b31045caa8ec0efdd00d92ef04cfe29284bd0528c305ca

            SHA512

            245e391ed2b740c3d28b8fbf97584e1b6233f862e73b77dd07ea54533ddcb547783fa77695705ba4f79110a855bc525a44a30df0404746afda92556f94f2c1f3

          • C:\Windows\SysWOW64\hfnapi.dll

            Filesize

            106KB

            MD5

            c89d22139866bcf08d95be326c0e1659

            SHA1

            5a01d6c68fa8c72cfb6aaaa3c574553d3b27e038

            SHA256

            0b9a13f647946afd16b31045caa8ec0efdd00d92ef04cfe29284bd0528c305ca

            SHA512

            245e391ed2b740c3d28b8fbf97584e1b6233f862e73b77dd07ea54533ddcb547783fa77695705ba4f79110a855bc525a44a30df0404746afda92556f94f2c1f3

          • C:\Windows\SysWOW64\hfnapi.dll

            Filesize

            106KB

            MD5

            c89d22139866bcf08d95be326c0e1659

            SHA1

            5a01d6c68fa8c72cfb6aaaa3c574553d3b27e038

            SHA256

            0b9a13f647946afd16b31045caa8ec0efdd00d92ef04cfe29284bd0528c305ca

            SHA512

            245e391ed2b740c3d28b8fbf97584e1b6233f862e73b77dd07ea54533ddcb547783fa77695705ba4f79110a855bc525a44a30df0404746afda92556f94f2c1f3

          • C:\Windows\SysWOW64\hfnapi.dll

            Filesize

            106KB

            MD5

            c89d22139866bcf08d95be326c0e1659

            SHA1

            5a01d6c68fa8c72cfb6aaaa3c574553d3b27e038

            SHA256

            0b9a13f647946afd16b31045caa8ec0efdd00d92ef04cfe29284bd0528c305ca

            SHA512

            245e391ed2b740c3d28b8fbf97584e1b6233f862e73b77dd07ea54533ddcb547783fa77695705ba4f79110a855bc525a44a30df0404746afda92556f94f2c1f3

          • C:\Windows\SysWOW64\hfpapi.dll

            Filesize

            241KB

            MD5

            ad71447e07a2eac00ea1c36c86049fec

            SHA1

            15a797980370f6ba4a16b7e3be38e4c95725f2c3

            SHA256

            d8f6a5636e6c9479d520e43c6ae1b336bbddb0c029c0e4d7f4880c02cf00fcb3

            SHA512

            380c070aced1e8d212438cde71b4c06ac19c46b0692ad30cc0c0fdf019ffe263e9c55a3e3dd7a92acd701275deec11c26a2a012343b49d05d2ab695a61fe2f63

          • C:\Windows\SysWOW64\hfpapi.dll

            Filesize

            241KB

            MD5

            ad71447e07a2eac00ea1c36c86049fec

            SHA1

            15a797980370f6ba4a16b7e3be38e4c95725f2c3

            SHA256

            d8f6a5636e6c9479d520e43c6ae1b336bbddb0c029c0e4d7f4880c02cf00fcb3

            SHA512

            380c070aced1e8d212438cde71b4c06ac19c46b0692ad30cc0c0fdf019ffe263e9c55a3e3dd7a92acd701275deec11c26a2a012343b49d05d2ab695a61fe2f63

          • C:\Windows\SysWOW64\hfpapi.dll

            Filesize

            241KB

            MD5

            ad71447e07a2eac00ea1c36c86049fec

            SHA1

            15a797980370f6ba4a16b7e3be38e4c95725f2c3

            SHA256

            d8f6a5636e6c9479d520e43c6ae1b336bbddb0c029c0e4d7f4880c02cf00fcb3

            SHA512

            380c070aced1e8d212438cde71b4c06ac19c46b0692ad30cc0c0fdf019ffe263e9c55a3e3dd7a92acd701275deec11c26a2a012343b49d05d2ab695a61fe2f63

          • C:\Windows\SysWOW64\installd.exe

            Filesize

            108KB

            MD5

            d400f846fc91ce07540ea86d83741aaf

            SHA1

            d439946660ee58ceb253c4644bedfd15dadc950d

            SHA256

            59c6ccb69038a027964b3193dd6beee6606cd140c0b32155cdd16d20d6241b38

            SHA512

            df4592fe5f9f765f57ec2971582bb39a711cd5eb53f3db1020e2b907a3f17f1a92cca31a1556410aecc91ccfcf3d047583f28200290b6098a2a9c9688382f502

          • C:\Windows\SysWOW64\installd.exe

            Filesize

            108KB

            MD5

            d400f846fc91ce07540ea86d83741aaf

            SHA1

            d439946660ee58ceb253c4644bedfd15dadc950d

            SHA256

            59c6ccb69038a027964b3193dd6beee6606cd140c0b32155cdd16d20d6241b38

            SHA512

            df4592fe5f9f765f57ec2971582bb39a711cd5eb53f3db1020e2b907a3f17f1a92cca31a1556410aecc91ccfcf3d047583f28200290b6098a2a9c9688382f502

          • C:\Windows\SysWOW64\nethtsrv.exe

            Filesize

            176KB

            MD5

            54ee67f53b9b6928a5837a0f39d1d303

            SHA1

            16170aa055ce33071cf11d0fd5a97d6c629a32b5

            SHA256

            34ee0788ebebffd5fee6daa8b56f97c2331df9ccd7139992830b6ca491cbec1b

            SHA512

            bb9c57a34d7e8b56c3becd847ab7f76e08c5c180413d55f63f130e7ab572b5b947c075c05044e7767aa93835db83d6f24fd8486f753968117cf1afbb144f8e64

          • C:\Windows\SysWOW64\nethtsrv.exe

            Filesize

            176KB

            MD5

            54ee67f53b9b6928a5837a0f39d1d303

            SHA1

            16170aa055ce33071cf11d0fd5a97d6c629a32b5

            SHA256

            34ee0788ebebffd5fee6daa8b56f97c2331df9ccd7139992830b6ca491cbec1b

            SHA512

            bb9c57a34d7e8b56c3becd847ab7f76e08c5c180413d55f63f130e7ab572b5b947c075c05044e7767aa93835db83d6f24fd8486f753968117cf1afbb144f8e64

          • C:\Windows\SysWOW64\nethtsrv.exe

            Filesize

            176KB

            MD5

            54ee67f53b9b6928a5837a0f39d1d303

            SHA1

            16170aa055ce33071cf11d0fd5a97d6c629a32b5

            SHA256

            34ee0788ebebffd5fee6daa8b56f97c2331df9ccd7139992830b6ca491cbec1b

            SHA512

            bb9c57a34d7e8b56c3becd847ab7f76e08c5c180413d55f63f130e7ab572b5b947c075c05044e7767aa93835db83d6f24fd8486f753968117cf1afbb144f8e64

          • C:\Windows\SysWOW64\netupdsrv.exe

            Filesize

            159KB

            MD5

            730b59ee1b195b16b542c5eceb49806b

            SHA1

            cccc5c8ee1d7ba2ed437f498162a8cc9cb935583

            SHA256

            5ab21923d5461c6e51ca6c9049b960d689bdf5be58809272c3bf942a372e4b0c

            SHA512

            bd13df229e8e8d85a8766ef7c5e022840ff53808133aaadfadd79c3caa4a9785048cf9133b278893b8cb9669cb6401224ab602b1d6acf691467dcaa3d104fd41

          • C:\Windows\SysWOW64\netupdsrv.exe

            Filesize

            159KB

            MD5

            730b59ee1b195b16b542c5eceb49806b

            SHA1

            cccc5c8ee1d7ba2ed437f498162a8cc9cb935583

            SHA256

            5ab21923d5461c6e51ca6c9049b960d689bdf5be58809272c3bf942a372e4b0c

            SHA512

            bd13df229e8e8d85a8766ef7c5e022840ff53808133aaadfadd79c3caa4a9785048cf9133b278893b8cb9669cb6401224ab602b1d6acf691467dcaa3d104fd41

          • C:\Windows\SysWOW64\netupdsrv.exe

            Filesize

            159KB

            MD5

            730b59ee1b195b16b542c5eceb49806b

            SHA1

            cccc5c8ee1d7ba2ed437f498162a8cc9cb935583

            SHA256

            5ab21923d5461c6e51ca6c9049b960d689bdf5be58809272c3bf942a372e4b0c

            SHA512

            bd13df229e8e8d85a8766ef7c5e022840ff53808133aaadfadd79c3caa4a9785048cf9133b278893b8cb9669cb6401224ab602b1d6acf691467dcaa3d104fd41

          • memory/500-166-0x0000000000000000-mapping.dmp

          • memory/1816-142-0x0000000000000000-mapping.dmp

          • memory/2204-153-0x0000000000000000-mapping.dmp

          • memory/2228-159-0x0000000000000000-mapping.dmp

          • memory/2476-140-0x0000000000000000-mapping.dmp

          • memory/3128-141-0x0000000000000000-mapping.dmp

          • memory/3276-136-0x0000000000000000-mapping.dmp

          • memory/4372-147-0x0000000000000000-mapping.dmp

          • memory/4680-132-0x0000000000360000-0x00000000007BE000-memory.dmp

            Filesize

            4.4MB

          • memory/4680-168-0x0000000000360000-0x00000000007BE000-memory.dmp

            Filesize

            4.4MB

          • memory/4680-169-0x0000000000360000-0x00000000007BE000-memory.dmp

            Filesize

            4.4MB

          • memory/4764-165-0x0000000000000000-mapping.dmp

          • memory/5048-158-0x0000000000000000-mapping.dmp

          • memory/5060-137-0x0000000000000000-mapping.dmp