Analysis

  • max time kernel
    206s
  • max time network
    211s
  • 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 10:54

General

  • Target

    9f5a4f13942805da8dd985b9f9922031e568d2c74a9d25e66bc8620abc88bee8.exe

  • Size

    446KB

  • MD5

    afbef9d5745637e884d351e237a15178

  • SHA1

    743f1d96ad1bb73b6d71a1422321a33cf51a297d

  • SHA256

    9f5a4f13942805da8dd985b9f9922031e568d2c74a9d25e66bc8620abc88bee8

  • SHA512

    41e8d9482bd08d0d85fb44a31d5909820ddd9abee454a90a47b8de5919135f33235706881361bc7fdaf29fcb102fbb9da37bfc80ba4a5078dd78bab4cabf65d4

  • SSDEEP

    12288:40eVZVBcCN9cWsAh1X+z5rB1Qqd7w+KEcgEgxZxw5WQV4:4NZV+CN9Nh1Xel3r8+Fc2xaWQV4

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\9f5a4f13942805da8dd985b9f9922031e568d2c74a9d25e66bc8620abc88bee8.exe
    "C:\Users\Admin\AppData\Local\Temp\9f5a4f13942805da8dd985b9f9922031e568d2c74a9d25e66bc8620abc88bee8.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:1560
    • C:\Windows\SysWOW64\net.exe
      net stop nethttpservice
      2⤵
      • Suspicious use of WriteProcessMemory
      PID:816
      • C:\Windows\SysWOW64\net1.exe
        C:\Windows\system32\net1 stop nethttpservice
        3⤵
          PID:1056
      • C:\Windows\SysWOW64\net.exe
        net stop serviceupdater
        2⤵
        • Suspicious use of WriteProcessMemory
        PID:216
        • C:\Windows\SysWOW64\net1.exe
          C:\Windows\system32\net1 stop serviceupdater
          3⤵
            PID:4260
        • C:\Windows\SysWOW64\installd.exe
          "C:\Windows\system32\installd.exe" nethfdrv
          2⤵
          • Executes dropped EXE
          • Loads dropped DLL
          PID:3044
        • C:\Windows\SysWOW64\nethtsrv.exe
          "C:\Windows\system32\nethtsrv.exe" -nfdi
          2⤵
          • Executes dropped EXE
          • Loads dropped DLL
          PID:4292
        • C:\Windows\SysWOW64\netupdsrv.exe
          "C:\Windows\system32\netupdsrv.exe" -nfdi
          2⤵
          • Executes dropped EXE
          PID:3104
        • C:\Windows\SysWOW64\net.exe
          net start nethttpservice
          2⤵
          • Suspicious use of WriteProcessMemory
          PID:3396
          • C:\Windows\SysWOW64\net1.exe
            C:\Windows\system32\net1 start nethttpservice
            3⤵
              PID:5020
          • C:\Windows\SysWOW64\net.exe
            net start serviceupdater
            2⤵
            • Suspicious use of WriteProcessMemory
            PID:3160
            • C:\Windows\SysWOW64\net1.exe
              C:\Windows\system32\net1 start serviceupdater
              3⤵
                PID:3384
          • 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:4404
          • C:\Windows\SysWOW64\netupdsrv.exe
            C:\Windows\SysWOW64\netupdsrv.exe
            1⤵
            • Executes dropped EXE
            PID:4224

          Network

          MITRE ATT&CK Enterprise v6

          Replay Monitor

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          Downloads

          • C:\Users\Admin\AppData\Local\Temp\nst4FE7.tmp\System.dll

            Filesize

            11KB

            MD5

            c17103ae9072a06da581dec998343fc1

            SHA1

            b72148c6bdfaada8b8c3f950e610ee7cf1da1f8d

            SHA256

            dc58d8ad81cacb0c1ed72e33bff8f23ea40b5252b5bb55d393a0903e6819ae2f

            SHA512

            d32a71aaef18e993f28096d536e41c4d016850721b31171513ce28bbd805a54fd290b7c3e9d935f72e676a1acfb4f0dcc89d95040a0dd29f2b6975855c18986f

          • C:\Users\Admin\AppData\Local\Temp\nst4FE7.tmp\nsExec.dll

            Filesize

            6KB

            MD5

            acc2b699edfea5bf5aae45aba3a41e96

            SHA1

            d2accf4d494e43ceb2cff69abe4dd17147d29cc2

            SHA256

            168a974eaa3f588d759db3f47c1a9fdc3494ba1fa1a73a84e5e3b2a4d58abd7e

            SHA512

            e29ea10ada98c71a18273b04f44f385b120d4e8473e441ce5748cfa44a23648814f2656f429b85440157988c88de776c6ac008dc38bf09cbb746c230a46c69fe

          • C:\Users\Admin\AppData\Local\Temp\nst4FE7.tmp\nsExec.dll

            Filesize

            6KB

            MD5

            acc2b699edfea5bf5aae45aba3a41e96

            SHA1

            d2accf4d494e43ceb2cff69abe4dd17147d29cc2

            SHA256

            168a974eaa3f588d759db3f47c1a9fdc3494ba1fa1a73a84e5e3b2a4d58abd7e

            SHA512

            e29ea10ada98c71a18273b04f44f385b120d4e8473e441ce5748cfa44a23648814f2656f429b85440157988c88de776c6ac008dc38bf09cbb746c230a46c69fe

          • C:\Users\Admin\AppData\Local\Temp\nst4FE7.tmp\nsExec.dll

            Filesize

            6KB

            MD5

            acc2b699edfea5bf5aae45aba3a41e96

            SHA1

            d2accf4d494e43ceb2cff69abe4dd17147d29cc2

            SHA256

            168a974eaa3f588d759db3f47c1a9fdc3494ba1fa1a73a84e5e3b2a4d58abd7e

            SHA512

            e29ea10ada98c71a18273b04f44f385b120d4e8473e441ce5748cfa44a23648814f2656f429b85440157988c88de776c6ac008dc38bf09cbb746c230a46c69fe

          • C:\Users\Admin\AppData\Local\Temp\nst4FE7.tmp\nsExec.dll

            Filesize

            6KB

            MD5

            acc2b699edfea5bf5aae45aba3a41e96

            SHA1

            d2accf4d494e43ceb2cff69abe4dd17147d29cc2

            SHA256

            168a974eaa3f588d759db3f47c1a9fdc3494ba1fa1a73a84e5e3b2a4d58abd7e

            SHA512

            e29ea10ada98c71a18273b04f44f385b120d4e8473e441ce5748cfa44a23648814f2656f429b85440157988c88de776c6ac008dc38bf09cbb746c230a46c69fe

          • C:\Users\Admin\AppData\Local\Temp\nst4FE7.tmp\nsExec.dll

            Filesize

            6KB

            MD5

            acc2b699edfea5bf5aae45aba3a41e96

            SHA1

            d2accf4d494e43ceb2cff69abe4dd17147d29cc2

            SHA256

            168a974eaa3f588d759db3f47c1a9fdc3494ba1fa1a73a84e5e3b2a4d58abd7e

            SHA512

            e29ea10ada98c71a18273b04f44f385b120d4e8473e441ce5748cfa44a23648814f2656f429b85440157988c88de776c6ac008dc38bf09cbb746c230a46c69fe

          • C:\Users\Admin\AppData\Local\Temp\nst4FE7.tmp\nsExec.dll

            Filesize

            6KB

            MD5

            acc2b699edfea5bf5aae45aba3a41e96

            SHA1

            d2accf4d494e43ceb2cff69abe4dd17147d29cc2

            SHA256

            168a974eaa3f588d759db3f47c1a9fdc3494ba1fa1a73a84e5e3b2a4d58abd7e

            SHA512

            e29ea10ada98c71a18273b04f44f385b120d4e8473e441ce5748cfa44a23648814f2656f429b85440157988c88de776c6ac008dc38bf09cbb746c230a46c69fe

          • C:\Users\Admin\AppData\Local\Temp\nst4FE7.tmp\nsExec.dll

            Filesize

            6KB

            MD5

            acc2b699edfea5bf5aae45aba3a41e96

            SHA1

            d2accf4d494e43ceb2cff69abe4dd17147d29cc2

            SHA256

            168a974eaa3f588d759db3f47c1a9fdc3494ba1fa1a73a84e5e3b2a4d58abd7e

            SHA512

            e29ea10ada98c71a18273b04f44f385b120d4e8473e441ce5748cfa44a23648814f2656f429b85440157988c88de776c6ac008dc38bf09cbb746c230a46c69fe

          • C:\Users\Admin\AppData\Local\Temp\nst4FE7.tmp\nsExec.dll

            Filesize

            6KB

            MD5

            acc2b699edfea5bf5aae45aba3a41e96

            SHA1

            d2accf4d494e43ceb2cff69abe4dd17147d29cc2

            SHA256

            168a974eaa3f588d759db3f47c1a9fdc3494ba1fa1a73a84e5e3b2a4d58abd7e

            SHA512

            e29ea10ada98c71a18273b04f44f385b120d4e8473e441ce5748cfa44a23648814f2656f429b85440157988c88de776c6ac008dc38bf09cbb746c230a46c69fe

          • C:\Windows\SysWOW64\hfnapi.dll

            Filesize

            106KB

            MD5

            6d996893575ac62f1390a17908ae40d8

            SHA1

            78c2f9298c5044f881251d0f1e22cf5eb848863f

            SHA256

            30c93cc73ddd71f89207b44f24ee793731f31afb32eb929db86041a58056511e

            SHA512

            8479159fb1e239d2f7b60fc537bb10b92b6d918a420661a3a0adf9888193a9087d146b183465fdc091a457a6670f1224a0b3d20b8a9cea4a223d1639e9927b4e

          • C:\Windows\SysWOW64\hfnapi.dll

            Filesize

            106KB

            MD5

            6d996893575ac62f1390a17908ae40d8

            SHA1

            78c2f9298c5044f881251d0f1e22cf5eb848863f

            SHA256

            30c93cc73ddd71f89207b44f24ee793731f31afb32eb929db86041a58056511e

            SHA512

            8479159fb1e239d2f7b60fc537bb10b92b6d918a420661a3a0adf9888193a9087d146b183465fdc091a457a6670f1224a0b3d20b8a9cea4a223d1639e9927b4e

          • C:\Windows\SysWOW64\hfnapi.dll

            Filesize

            106KB

            MD5

            6d996893575ac62f1390a17908ae40d8

            SHA1

            78c2f9298c5044f881251d0f1e22cf5eb848863f

            SHA256

            30c93cc73ddd71f89207b44f24ee793731f31afb32eb929db86041a58056511e

            SHA512

            8479159fb1e239d2f7b60fc537bb10b92b6d918a420661a3a0adf9888193a9087d146b183465fdc091a457a6670f1224a0b3d20b8a9cea4a223d1639e9927b4e

          • C:\Windows\SysWOW64\hfnapi.dll

            Filesize

            106KB

            MD5

            6d996893575ac62f1390a17908ae40d8

            SHA1

            78c2f9298c5044f881251d0f1e22cf5eb848863f

            SHA256

            30c93cc73ddd71f89207b44f24ee793731f31afb32eb929db86041a58056511e

            SHA512

            8479159fb1e239d2f7b60fc537bb10b92b6d918a420661a3a0adf9888193a9087d146b183465fdc091a457a6670f1224a0b3d20b8a9cea4a223d1639e9927b4e

          • C:\Windows\SysWOW64\hfpapi.dll

            Filesize

            244KB

            MD5

            9b0a8886e1ea23ee49e6abf81ff0ffd2

            SHA1

            578e303fce64da6797bb915e2e90bffdd16a2810

            SHA256

            4df0baec8a920b1b6e8feae9f64b8f3a9bfa59a5d110a1805b85f38b9c74564d

            SHA512

            eb0afbeb2f73bd6b393d2f5f7c12cd271ee4a29e35b199ac1ac823b6751773e6d778e189b2cb8ec3da51001336fa2b3139c1253ab7b73a46a25997cf637adab9

          • C:\Windows\SysWOW64\hfpapi.dll

            Filesize

            244KB

            MD5

            9b0a8886e1ea23ee49e6abf81ff0ffd2

            SHA1

            578e303fce64da6797bb915e2e90bffdd16a2810

            SHA256

            4df0baec8a920b1b6e8feae9f64b8f3a9bfa59a5d110a1805b85f38b9c74564d

            SHA512

            eb0afbeb2f73bd6b393d2f5f7c12cd271ee4a29e35b199ac1ac823b6751773e6d778e189b2cb8ec3da51001336fa2b3139c1253ab7b73a46a25997cf637adab9

          • C:\Windows\SysWOW64\hfpapi.dll

            Filesize

            244KB

            MD5

            9b0a8886e1ea23ee49e6abf81ff0ffd2

            SHA1

            578e303fce64da6797bb915e2e90bffdd16a2810

            SHA256

            4df0baec8a920b1b6e8feae9f64b8f3a9bfa59a5d110a1805b85f38b9c74564d

            SHA512

            eb0afbeb2f73bd6b393d2f5f7c12cd271ee4a29e35b199ac1ac823b6751773e6d778e189b2cb8ec3da51001336fa2b3139c1253ab7b73a46a25997cf637adab9

          • C:\Windows\SysWOW64\installd.exe

            Filesize

            108KB

            MD5

            1f14ec36844098a770e56ec84cf5936e

            SHA1

            ed32e0a2a2cd54b72e811089806949c9b5a8255b

            SHA256

            5f307ab0251cae43fd7722575e5539cb5944f967ede7d346356b73efde455a17

            SHA512

            b0be06fcdc4a2a96b7db91f0b790ff0c8bdc56f4a1e8946c3d8ca464743cbb0a58e2f6d53dca5c57d205ad6f3ea84b5eaaf19b1c80ab8f7617ed0b66122ff483

          • C:\Windows\SysWOW64\installd.exe

            Filesize

            108KB

            MD5

            1f14ec36844098a770e56ec84cf5936e

            SHA1

            ed32e0a2a2cd54b72e811089806949c9b5a8255b

            SHA256

            5f307ab0251cae43fd7722575e5539cb5944f967ede7d346356b73efde455a17

            SHA512

            b0be06fcdc4a2a96b7db91f0b790ff0c8bdc56f4a1e8946c3d8ca464743cbb0a58e2f6d53dca5c57d205ad6f3ea84b5eaaf19b1c80ab8f7617ed0b66122ff483

          • C:\Windows\SysWOW64\nethtsrv.exe

            Filesize

            176KB

            MD5

            8258b5b3758496a64e76a43a70045823

            SHA1

            83d437e89fb6a5835fa35269751ddf08b07d9728

            SHA256

            283ab51dd7e6a8f0f9ba594564e2266e1a72984ac90745fc67e8fcf8a5a441e3

            SHA512

            d3a7e411fda410f0023fd34b3ffcff15c7abad964cbdd7cb2044972b7e32d6c5f7e1d7f5372e48f59afb2501fd26017f1e4a1fe53f13a161a376aaf4ad29a028

          • C:\Windows\SysWOW64\nethtsrv.exe

            Filesize

            176KB

            MD5

            8258b5b3758496a64e76a43a70045823

            SHA1

            83d437e89fb6a5835fa35269751ddf08b07d9728

            SHA256

            283ab51dd7e6a8f0f9ba594564e2266e1a72984ac90745fc67e8fcf8a5a441e3

            SHA512

            d3a7e411fda410f0023fd34b3ffcff15c7abad964cbdd7cb2044972b7e32d6c5f7e1d7f5372e48f59afb2501fd26017f1e4a1fe53f13a161a376aaf4ad29a028

          • C:\Windows\SysWOW64\nethtsrv.exe

            Filesize

            176KB

            MD5

            8258b5b3758496a64e76a43a70045823

            SHA1

            83d437e89fb6a5835fa35269751ddf08b07d9728

            SHA256

            283ab51dd7e6a8f0f9ba594564e2266e1a72984ac90745fc67e8fcf8a5a441e3

            SHA512

            d3a7e411fda410f0023fd34b3ffcff15c7abad964cbdd7cb2044972b7e32d6c5f7e1d7f5372e48f59afb2501fd26017f1e4a1fe53f13a161a376aaf4ad29a028

          • C:\Windows\SysWOW64\netupdsrv.exe

            Filesize

            158KB

            MD5

            6e0ed365d3b15cc738a5ee58618e0417

            SHA1

            71a41ed2f8d2b5d12c2115825425f7ade2e52f08

            SHA256

            7ab09ff883d0c6583fbb77172cc53978d66cf45e544ee616321f63cdd9fb30b5

            SHA512

            0878816f74f0ce9c801334f62ceea28997075e5d260d89e7f594ad384d0772ad46dde424136cc0cfe26156b1db15f7813ed5b5e6f4b6110656a222edbdee97c9

          • C:\Windows\SysWOW64\netupdsrv.exe

            Filesize

            158KB

            MD5

            6e0ed365d3b15cc738a5ee58618e0417

            SHA1

            71a41ed2f8d2b5d12c2115825425f7ade2e52f08

            SHA256

            7ab09ff883d0c6583fbb77172cc53978d66cf45e544ee616321f63cdd9fb30b5

            SHA512

            0878816f74f0ce9c801334f62ceea28997075e5d260d89e7f594ad384d0772ad46dde424136cc0cfe26156b1db15f7813ed5b5e6f4b6110656a222edbdee97c9

          • C:\Windows\SysWOW64\netupdsrv.exe

            Filesize

            158KB

            MD5

            6e0ed365d3b15cc738a5ee58618e0417

            SHA1

            71a41ed2f8d2b5d12c2115825425f7ade2e52f08

            SHA256

            7ab09ff883d0c6583fbb77172cc53978d66cf45e544ee616321f63cdd9fb30b5

            SHA512

            0878816f74f0ce9c801334f62ceea28997075e5d260d89e7f594ad384d0772ad46dde424136cc0cfe26156b1db15f7813ed5b5e6f4b6110656a222edbdee97c9

          • memory/216-139-0x0000000000000000-mapping.dmp

          • memory/816-135-0x0000000000000000-mapping.dmp

          • memory/1056-136-0x0000000000000000-mapping.dmp

          • memory/3044-141-0x0000000000000000-mapping.dmp

          • memory/3104-152-0x0000000000000000-mapping.dmp

          • memory/3160-164-0x0000000000000000-mapping.dmp

          • memory/3384-165-0x0000000000000000-mapping.dmp

          • memory/3396-157-0x0000000000000000-mapping.dmp

          • memory/4260-140-0x0000000000000000-mapping.dmp

          • memory/4292-146-0x0000000000000000-mapping.dmp

          • memory/5020-158-0x0000000000000000-mapping.dmp