Analysis

  • max time kernel
    152s
  • max time network
    156s
  • 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 10:07

General

  • Target

    f400c869832e72a06f63bcea50d0c2832efe95cc7ce76f9edcc10b37bcb21618.exe

  • Size

    602KB

  • MD5

    a841b1e970e23764113c7be0c7193524

  • SHA1

    73039e7a3e0f580e42c5bd2f0def0181ba3d320c

  • SHA256

    f400c869832e72a06f63bcea50d0c2832efe95cc7ce76f9edcc10b37bcb21618

  • SHA512

    e414657656fbbdb96896cda5c06e576bec21577989912b9d51971dcc6fbdebccaf351825e4993cd749b23eb013ecf749d59f52366499be7edbc03331e5451baa

  • SSDEEP

    12288:9Iny5DYTSIcZfJWQzxRkv9ZEuc/4cKh2XU32d9pS:pUTSLZBlxRGG/igbpS

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\f400c869832e72a06f63bcea50d0c2832efe95cc7ce76f9edcc10b37bcb21618.exe
    "C:\Users\Admin\AppData\Local\Temp\f400c869832e72a06f63bcea50d0c2832efe95cc7ce76f9edcc10b37bcb21618.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:2712
    • C:\Windows\SysWOW64\net.exe
      net stop nethttpservice
      2⤵
      • Suspicious use of WriteProcessMemory
      PID:2672
      • C:\Windows\SysWOW64\net1.exe
        C:\Windows\system32\net1 stop nethttpservice
        3⤵
          PID:3392
      • C:\Windows\SysWOW64\net.exe
        net stop serviceupdater
        2⤵
        • Suspicious use of WriteProcessMemory
        PID:2432
        • C:\Windows\SysWOW64\net1.exe
          C:\Windows\system32\net1 stop serviceupdater
          3⤵
            PID:3840
        • C:\Windows\SysWOW64\installd.exe
          "C:\Windows\system32\installd.exe" nethfdrv
          2⤵
          • Executes dropped EXE
          • Loads dropped DLL
          PID:4016
        • C:\Windows\SysWOW64\nethtsrv.exe
          "C:\Windows\system32\nethtsrv.exe" -nfdi
          2⤵
          • Executes dropped EXE
          • Loads dropped DLL
          PID:4452
        • C:\Windows\SysWOW64\netupdsrv.exe
          "C:\Windows\system32\netupdsrv.exe" -nfdi
          2⤵
          • Executes dropped EXE
          PID:3764
        • C:\Windows\SysWOW64\net.exe
          net start nethttpservice
          2⤵
          • Suspicious use of WriteProcessMemory
          PID:2312
          • C:\Windows\SysWOW64\net1.exe
            C:\Windows\system32\net1 start nethttpservice
            3⤵
              PID:3896
          • C:\Windows\SysWOW64\net.exe
            net start serviceupdater
            2⤵
            • Suspicious use of WriteProcessMemory
            PID:4408
            • C:\Windows\SysWOW64\net1.exe
              C:\Windows\system32\net1 start serviceupdater
              3⤵
                PID:4764
          • 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:3964
          • C:\Windows\SysWOW64\netupdsrv.exe
            C:\Windows\SysWOW64\netupdsrv.exe
            1⤵
            • Executes dropped EXE
            PID:5004

          Network

          MITRE ATT&CK Enterprise v6

          Replay Monitor

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          Downloads

          • C:\Users\Admin\AppData\Local\Temp\nsh59E9.tmp\System.dll

            Filesize

            11KB

            MD5

            c17103ae9072a06da581dec998343fc1

            SHA1

            b72148c6bdfaada8b8c3f950e610ee7cf1da1f8d

            SHA256

            dc58d8ad81cacb0c1ed72e33bff8f23ea40b5252b5bb55d393a0903e6819ae2f

            SHA512

            d32a71aaef18e993f28096d536e41c4d016850721b31171513ce28bbd805a54fd290b7c3e9d935f72e676a1acfb4f0dcc89d95040a0dd29f2b6975855c18986f

          • C:\Users\Admin\AppData\Local\Temp\nsh59E9.tmp\nsExec.dll

            Filesize

            6KB

            MD5

            acc2b699edfea5bf5aae45aba3a41e96

            SHA1

            d2accf4d494e43ceb2cff69abe4dd17147d29cc2

            SHA256

            168a974eaa3f588d759db3f47c1a9fdc3494ba1fa1a73a84e5e3b2a4d58abd7e

            SHA512

            e29ea10ada98c71a18273b04f44f385b120d4e8473e441ce5748cfa44a23648814f2656f429b85440157988c88de776c6ac008dc38bf09cbb746c230a46c69fe

          • C:\Users\Admin\AppData\Local\Temp\nsh59E9.tmp\nsExec.dll

            Filesize

            6KB

            MD5

            acc2b699edfea5bf5aae45aba3a41e96

            SHA1

            d2accf4d494e43ceb2cff69abe4dd17147d29cc2

            SHA256

            168a974eaa3f588d759db3f47c1a9fdc3494ba1fa1a73a84e5e3b2a4d58abd7e

            SHA512

            e29ea10ada98c71a18273b04f44f385b120d4e8473e441ce5748cfa44a23648814f2656f429b85440157988c88de776c6ac008dc38bf09cbb746c230a46c69fe

          • C:\Users\Admin\AppData\Local\Temp\nsh59E9.tmp\nsExec.dll

            Filesize

            6KB

            MD5

            acc2b699edfea5bf5aae45aba3a41e96

            SHA1

            d2accf4d494e43ceb2cff69abe4dd17147d29cc2

            SHA256

            168a974eaa3f588d759db3f47c1a9fdc3494ba1fa1a73a84e5e3b2a4d58abd7e

            SHA512

            e29ea10ada98c71a18273b04f44f385b120d4e8473e441ce5748cfa44a23648814f2656f429b85440157988c88de776c6ac008dc38bf09cbb746c230a46c69fe

          • C:\Users\Admin\AppData\Local\Temp\nsh59E9.tmp\nsExec.dll

            Filesize

            6KB

            MD5

            acc2b699edfea5bf5aae45aba3a41e96

            SHA1

            d2accf4d494e43ceb2cff69abe4dd17147d29cc2

            SHA256

            168a974eaa3f588d759db3f47c1a9fdc3494ba1fa1a73a84e5e3b2a4d58abd7e

            SHA512

            e29ea10ada98c71a18273b04f44f385b120d4e8473e441ce5748cfa44a23648814f2656f429b85440157988c88de776c6ac008dc38bf09cbb746c230a46c69fe

          • C:\Users\Admin\AppData\Local\Temp\nsh59E9.tmp\nsExec.dll

            Filesize

            6KB

            MD5

            acc2b699edfea5bf5aae45aba3a41e96

            SHA1

            d2accf4d494e43ceb2cff69abe4dd17147d29cc2

            SHA256

            168a974eaa3f588d759db3f47c1a9fdc3494ba1fa1a73a84e5e3b2a4d58abd7e

            SHA512

            e29ea10ada98c71a18273b04f44f385b120d4e8473e441ce5748cfa44a23648814f2656f429b85440157988c88de776c6ac008dc38bf09cbb746c230a46c69fe

          • C:\Users\Admin\AppData\Local\Temp\nsh59E9.tmp\nsExec.dll

            Filesize

            6KB

            MD5

            acc2b699edfea5bf5aae45aba3a41e96

            SHA1

            d2accf4d494e43ceb2cff69abe4dd17147d29cc2

            SHA256

            168a974eaa3f588d759db3f47c1a9fdc3494ba1fa1a73a84e5e3b2a4d58abd7e

            SHA512

            e29ea10ada98c71a18273b04f44f385b120d4e8473e441ce5748cfa44a23648814f2656f429b85440157988c88de776c6ac008dc38bf09cbb746c230a46c69fe

          • C:\Users\Admin\AppData\Local\Temp\nsh59E9.tmp\nsExec.dll

            Filesize

            6KB

            MD5

            acc2b699edfea5bf5aae45aba3a41e96

            SHA1

            d2accf4d494e43ceb2cff69abe4dd17147d29cc2

            SHA256

            168a974eaa3f588d759db3f47c1a9fdc3494ba1fa1a73a84e5e3b2a4d58abd7e

            SHA512

            e29ea10ada98c71a18273b04f44f385b120d4e8473e441ce5748cfa44a23648814f2656f429b85440157988c88de776c6ac008dc38bf09cbb746c230a46c69fe

          • C:\Users\Admin\AppData\Local\Temp\nsh59E9.tmp\nsExec.dll

            Filesize

            6KB

            MD5

            acc2b699edfea5bf5aae45aba3a41e96

            SHA1

            d2accf4d494e43ceb2cff69abe4dd17147d29cc2

            SHA256

            168a974eaa3f588d759db3f47c1a9fdc3494ba1fa1a73a84e5e3b2a4d58abd7e

            SHA512

            e29ea10ada98c71a18273b04f44f385b120d4e8473e441ce5748cfa44a23648814f2656f429b85440157988c88de776c6ac008dc38bf09cbb746c230a46c69fe

          • C:\Windows\SysWOW64\hfnapi.dll

            Filesize

            106KB

            MD5

            ee12ac759b2af7f610183ad23449bde9

            SHA1

            26556ac778c37b0c8f118f573a89d6aa0d1ed582

            SHA256

            a8a6d144218525cd247ebf1d67957eead70561b16ffb7aa052fa909883a25992

            SHA512

            757e4d5129b1f0791a076ce6c39f26df08b25d68b4697a5b0bf037c652c9e2103b650ba506c7208a95a563c9d15a7b433e133b4ed9d42e381d360660dd5ea1f6

          • C:\Windows\SysWOW64\hfnapi.dll

            Filesize

            106KB

            MD5

            ee12ac759b2af7f610183ad23449bde9

            SHA1

            26556ac778c37b0c8f118f573a89d6aa0d1ed582

            SHA256

            a8a6d144218525cd247ebf1d67957eead70561b16ffb7aa052fa909883a25992

            SHA512

            757e4d5129b1f0791a076ce6c39f26df08b25d68b4697a5b0bf037c652c9e2103b650ba506c7208a95a563c9d15a7b433e133b4ed9d42e381d360660dd5ea1f6

          • C:\Windows\SysWOW64\hfnapi.dll

            Filesize

            106KB

            MD5

            ee12ac759b2af7f610183ad23449bde9

            SHA1

            26556ac778c37b0c8f118f573a89d6aa0d1ed582

            SHA256

            a8a6d144218525cd247ebf1d67957eead70561b16ffb7aa052fa909883a25992

            SHA512

            757e4d5129b1f0791a076ce6c39f26df08b25d68b4697a5b0bf037c652c9e2103b650ba506c7208a95a563c9d15a7b433e133b4ed9d42e381d360660dd5ea1f6

          • C:\Windows\SysWOW64\hfnapi.dll

            Filesize

            106KB

            MD5

            ee12ac759b2af7f610183ad23449bde9

            SHA1

            26556ac778c37b0c8f118f573a89d6aa0d1ed582

            SHA256

            a8a6d144218525cd247ebf1d67957eead70561b16ffb7aa052fa909883a25992

            SHA512

            757e4d5129b1f0791a076ce6c39f26df08b25d68b4697a5b0bf037c652c9e2103b650ba506c7208a95a563c9d15a7b433e133b4ed9d42e381d360660dd5ea1f6

          • C:\Windows\SysWOW64\hfpapi.dll

            Filesize

            241KB

            MD5

            120427badec251931733bfdbd8f26c5a

            SHA1

            f2ff4c7b5fc4469ccf0541844617653fbf5eeb51

            SHA256

            5146da65027e014f6d35503cf242bb9e6314dfb9d311e82be44bde3637f886f7

            SHA512

            59774a4f5746a24381389cc6e6b37e2402bbdbddb78d96c4e8775452d6d8e8895f2b0fc4806710c210d0891fc73bef0f94f0a4a0c9c99b8ae22bd57b1fa47465

          • C:\Windows\SysWOW64\hfpapi.dll

            Filesize

            241KB

            MD5

            120427badec251931733bfdbd8f26c5a

            SHA1

            f2ff4c7b5fc4469ccf0541844617653fbf5eeb51

            SHA256

            5146da65027e014f6d35503cf242bb9e6314dfb9d311e82be44bde3637f886f7

            SHA512

            59774a4f5746a24381389cc6e6b37e2402bbdbddb78d96c4e8775452d6d8e8895f2b0fc4806710c210d0891fc73bef0f94f0a4a0c9c99b8ae22bd57b1fa47465

          • C:\Windows\SysWOW64\hfpapi.dll

            Filesize

            241KB

            MD5

            120427badec251931733bfdbd8f26c5a

            SHA1

            f2ff4c7b5fc4469ccf0541844617653fbf5eeb51

            SHA256

            5146da65027e014f6d35503cf242bb9e6314dfb9d311e82be44bde3637f886f7

            SHA512

            59774a4f5746a24381389cc6e6b37e2402bbdbddb78d96c4e8775452d6d8e8895f2b0fc4806710c210d0891fc73bef0f94f0a4a0c9c99b8ae22bd57b1fa47465

          • C:\Windows\SysWOW64\installd.exe

            Filesize

            108KB

            MD5

            e9335414c3c610d7cba1edbbdd50fc0d

            SHA1

            212a7488a3f9ad2a1059b658a4ed540a881ca814

            SHA256

            ffbd87fac6d512799b2539f89e6212f18477365a6ef9f77324ec8f04074e9fa8

            SHA512

            c0e7d6f09d41663b6e2914f66d88d5a71f96a63bcdd56948d907259ce641260a76753c9d7aab710e6cba9611f8553122662fe253082f3a43fd4783c09e75a0a9

          • C:\Windows\SysWOW64\installd.exe

            Filesize

            108KB

            MD5

            e9335414c3c610d7cba1edbbdd50fc0d

            SHA1

            212a7488a3f9ad2a1059b658a4ed540a881ca814

            SHA256

            ffbd87fac6d512799b2539f89e6212f18477365a6ef9f77324ec8f04074e9fa8

            SHA512

            c0e7d6f09d41663b6e2914f66d88d5a71f96a63bcdd56948d907259ce641260a76753c9d7aab710e6cba9611f8553122662fe253082f3a43fd4783c09e75a0a9

          • C:\Windows\SysWOW64\nethtsrv.exe

            Filesize

            176KB

            MD5

            5dafdb9fbb481182370643d83533ee44

            SHA1

            f9014fd79d24405cac7ad3d79d7d91c9f2ee3f45

            SHA256

            945c2b92189898ebde0fcba8376c34340519facba325d938bc8170911a259d09

            SHA512

            eb410a82ca11a083adc80b0edd7e0ad10b229ac4172a9ef6144abb775915456dfb879ec363093c6ef645e4fd637ebbd0698f78e55b72ba7218d139f4878a3bc8

          • C:\Windows\SysWOW64\nethtsrv.exe

            Filesize

            176KB

            MD5

            5dafdb9fbb481182370643d83533ee44

            SHA1

            f9014fd79d24405cac7ad3d79d7d91c9f2ee3f45

            SHA256

            945c2b92189898ebde0fcba8376c34340519facba325d938bc8170911a259d09

            SHA512

            eb410a82ca11a083adc80b0edd7e0ad10b229ac4172a9ef6144abb775915456dfb879ec363093c6ef645e4fd637ebbd0698f78e55b72ba7218d139f4878a3bc8

          • C:\Windows\SysWOW64\nethtsrv.exe

            Filesize

            176KB

            MD5

            5dafdb9fbb481182370643d83533ee44

            SHA1

            f9014fd79d24405cac7ad3d79d7d91c9f2ee3f45

            SHA256

            945c2b92189898ebde0fcba8376c34340519facba325d938bc8170911a259d09

            SHA512

            eb410a82ca11a083adc80b0edd7e0ad10b229ac4172a9ef6144abb775915456dfb879ec363093c6ef645e4fd637ebbd0698f78e55b72ba7218d139f4878a3bc8

          • C:\Windows\SysWOW64\netupdsrv.exe

            Filesize

            158KB

            MD5

            7bf73da4d0aca02b4dc1de6156ec4828

            SHA1

            35bf6b36baab98b56f5f71aa58269531fc8e0b3a

            SHA256

            40a29fb1788bab97822045965d2d6005eb0349259310af325734cfbda7e12833

            SHA512

            98c1d31af4afdac1ae214bdb2e13248dbf846b4cf7b53f374933f34478b1437ad32b9fafc7f734acd1bff7360284c206c55b4a559c5c4cc0997e586017ffd418

          • C:\Windows\SysWOW64\netupdsrv.exe

            Filesize

            158KB

            MD5

            7bf73da4d0aca02b4dc1de6156ec4828

            SHA1

            35bf6b36baab98b56f5f71aa58269531fc8e0b3a

            SHA256

            40a29fb1788bab97822045965d2d6005eb0349259310af325734cfbda7e12833

            SHA512

            98c1d31af4afdac1ae214bdb2e13248dbf846b4cf7b53f374933f34478b1437ad32b9fafc7f734acd1bff7360284c206c55b4a559c5c4cc0997e586017ffd418

          • C:\Windows\SysWOW64\netupdsrv.exe

            Filesize

            158KB

            MD5

            7bf73da4d0aca02b4dc1de6156ec4828

            SHA1

            35bf6b36baab98b56f5f71aa58269531fc8e0b3a

            SHA256

            40a29fb1788bab97822045965d2d6005eb0349259310af325734cfbda7e12833

            SHA512

            98c1d31af4afdac1ae214bdb2e13248dbf846b4cf7b53f374933f34478b1437ad32b9fafc7f734acd1bff7360284c206c55b4a559c5c4cc0997e586017ffd418

          • memory/2312-158-0x0000000000000000-mapping.dmp

          • memory/2432-140-0x0000000000000000-mapping.dmp

          • memory/2672-135-0x0000000000000000-mapping.dmp

          • memory/2712-168-0x0000000000360000-0x00000000007BE000-memory.dmp

            Filesize

            4.4MB

          • memory/2712-169-0x0000000000360000-0x00000000007BE000-memory.dmp

            Filesize

            4.4MB

          • memory/2712-136-0x0000000000360000-0x00000000007BE000-memory.dmp

            Filesize

            4.4MB

          • memory/3392-137-0x0000000000000000-mapping.dmp

          • memory/3764-153-0x0000000000000000-mapping.dmp

          • memory/3840-141-0x0000000000000000-mapping.dmp

          • memory/3896-159-0x0000000000000000-mapping.dmp

          • memory/4016-142-0x0000000000000000-mapping.dmp

          • memory/4408-165-0x0000000000000000-mapping.dmp

          • memory/4452-147-0x0000000000000000-mapping.dmp

          • memory/4764-166-0x0000000000000000-mapping.dmp