Analysis

  • max time kernel
    203s
  • max time network
    194s
  • 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 10:11

General

  • Target

    d5801fde5ded2bc1c4783e8cf1a1117f860d7b7373045df4fc0105d176012e0c.exe

  • Size

    603KB

  • MD5

    5443d6e0a6422547f397f1f60fdc72f9

  • SHA1

    d2343b1f0b5686a5002eb7767d1e1c573d587dc1

  • SHA256

    d5801fde5ded2bc1c4783e8cf1a1117f860d7b7373045df4fc0105d176012e0c

  • SHA512

    73116c83f8419b2a9d014b06ce60e5d60ea70c4ea1ea8fff7cb2f0cd0d80c5fd1f194616954a318c0375ac2b339c4bf8add5db7a7434eb8d10ffdd5d2b315eb8

  • SSDEEP

    12288:LIny5DYTfIPTms6GkqFZVjk8OHMYS+peJ6o:zUTfgTms6nQjk9S+A6

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\d5801fde5ded2bc1c4783e8cf1a1117f860d7b7373045df4fc0105d176012e0c.exe
    "C:\Users\Admin\AppData\Local\Temp\d5801fde5ded2bc1c4783e8cf1a1117f860d7b7373045df4fc0105d176012e0c.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:3204
    • C:\Windows\SysWOW64\net.exe
      net stop nethttpservice
      2⤵
      • Suspicious use of WriteProcessMemory
      PID:2196
      • C:\Windows\SysWOW64\net1.exe
        C:\Windows\system32\net1 stop nethttpservice
        3⤵
          PID:3772
      • C:\Windows\SysWOW64\net.exe
        net stop serviceupdater
        2⤵
        • Suspicious use of WriteProcessMemory
        PID:4940
        • C:\Windows\SysWOW64\net1.exe
          C:\Windows\system32\net1 stop serviceupdater
          3⤵
            PID:3184
        • C:\Windows\SysWOW64\installd.exe
          "C:\Windows\system32\installd.exe" nethfdrv
          2⤵
          • Executes dropped EXE
          • Loads dropped DLL
          PID:3124
        • C:\Windows\SysWOW64\nethtsrv.exe
          "C:\Windows\system32\nethtsrv.exe" -nfdi
          2⤵
          • Executes dropped EXE
          • Loads dropped DLL
          PID:4404
        • C:\Windows\SysWOW64\netupdsrv.exe
          "C:\Windows\system32\netupdsrv.exe" -nfdi
          2⤵
          • Executes dropped EXE
          PID:2820
        • C:\Windows\SysWOW64\net.exe
          net start nethttpservice
          2⤵
          • Suspicious use of WriteProcessMemory
          PID:1964
          • C:\Windows\SysWOW64\net1.exe
            C:\Windows\system32\net1 start nethttpservice
            3⤵
              PID:3568
          • C:\Windows\SysWOW64\net.exe
            net start serviceupdater
            2⤵
            • Suspicious use of WriteProcessMemory
            PID:1800
            • C:\Windows\SysWOW64\net1.exe
              C:\Windows\system32\net1 start serviceupdater
              3⤵
                PID:3908
          • 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:3488
          • C:\Windows\SysWOW64\netupdsrv.exe
            C:\Windows\SysWOW64\netupdsrv.exe
            1⤵
            • Executes dropped EXE
            PID:1604

          Network

          MITRE ATT&CK Enterprise v6

          Replay Monitor

          Loading Replay Monitor...

          Downloads

          • C:\Users\Admin\AppData\Local\Temp\nsr19A0.tmp\System.dll

            Filesize

            11KB

            MD5

            c17103ae9072a06da581dec998343fc1

            SHA1

            b72148c6bdfaada8b8c3f950e610ee7cf1da1f8d

            SHA256

            dc58d8ad81cacb0c1ed72e33bff8f23ea40b5252b5bb55d393a0903e6819ae2f

            SHA512

            d32a71aaef18e993f28096d536e41c4d016850721b31171513ce28bbd805a54fd290b7c3e9d935f72e676a1acfb4f0dcc89d95040a0dd29f2b6975855c18986f

          • C:\Users\Admin\AppData\Local\Temp\nsr19A0.tmp\nsExec.dll

            Filesize

            6KB

            MD5

            acc2b699edfea5bf5aae45aba3a41e96

            SHA1

            d2accf4d494e43ceb2cff69abe4dd17147d29cc2

            SHA256

            168a974eaa3f588d759db3f47c1a9fdc3494ba1fa1a73a84e5e3b2a4d58abd7e

            SHA512

            e29ea10ada98c71a18273b04f44f385b120d4e8473e441ce5748cfa44a23648814f2656f429b85440157988c88de776c6ac008dc38bf09cbb746c230a46c69fe

          • C:\Users\Admin\AppData\Local\Temp\nsr19A0.tmp\nsExec.dll

            Filesize

            6KB

            MD5

            acc2b699edfea5bf5aae45aba3a41e96

            SHA1

            d2accf4d494e43ceb2cff69abe4dd17147d29cc2

            SHA256

            168a974eaa3f588d759db3f47c1a9fdc3494ba1fa1a73a84e5e3b2a4d58abd7e

            SHA512

            e29ea10ada98c71a18273b04f44f385b120d4e8473e441ce5748cfa44a23648814f2656f429b85440157988c88de776c6ac008dc38bf09cbb746c230a46c69fe

          • C:\Users\Admin\AppData\Local\Temp\nsr19A0.tmp\nsExec.dll

            Filesize

            6KB

            MD5

            acc2b699edfea5bf5aae45aba3a41e96

            SHA1

            d2accf4d494e43ceb2cff69abe4dd17147d29cc2

            SHA256

            168a974eaa3f588d759db3f47c1a9fdc3494ba1fa1a73a84e5e3b2a4d58abd7e

            SHA512

            e29ea10ada98c71a18273b04f44f385b120d4e8473e441ce5748cfa44a23648814f2656f429b85440157988c88de776c6ac008dc38bf09cbb746c230a46c69fe

          • C:\Users\Admin\AppData\Local\Temp\nsr19A0.tmp\nsExec.dll

            Filesize

            6KB

            MD5

            acc2b699edfea5bf5aae45aba3a41e96

            SHA1

            d2accf4d494e43ceb2cff69abe4dd17147d29cc2

            SHA256

            168a974eaa3f588d759db3f47c1a9fdc3494ba1fa1a73a84e5e3b2a4d58abd7e

            SHA512

            e29ea10ada98c71a18273b04f44f385b120d4e8473e441ce5748cfa44a23648814f2656f429b85440157988c88de776c6ac008dc38bf09cbb746c230a46c69fe

          • C:\Users\Admin\AppData\Local\Temp\nsr19A0.tmp\nsExec.dll

            Filesize

            6KB

            MD5

            acc2b699edfea5bf5aae45aba3a41e96

            SHA1

            d2accf4d494e43ceb2cff69abe4dd17147d29cc2

            SHA256

            168a974eaa3f588d759db3f47c1a9fdc3494ba1fa1a73a84e5e3b2a4d58abd7e

            SHA512

            e29ea10ada98c71a18273b04f44f385b120d4e8473e441ce5748cfa44a23648814f2656f429b85440157988c88de776c6ac008dc38bf09cbb746c230a46c69fe

          • C:\Users\Admin\AppData\Local\Temp\nsr19A0.tmp\nsExec.dll

            Filesize

            6KB

            MD5

            acc2b699edfea5bf5aae45aba3a41e96

            SHA1

            d2accf4d494e43ceb2cff69abe4dd17147d29cc2

            SHA256

            168a974eaa3f588d759db3f47c1a9fdc3494ba1fa1a73a84e5e3b2a4d58abd7e

            SHA512

            e29ea10ada98c71a18273b04f44f385b120d4e8473e441ce5748cfa44a23648814f2656f429b85440157988c88de776c6ac008dc38bf09cbb746c230a46c69fe

          • C:\Users\Admin\AppData\Local\Temp\nsr19A0.tmp\nsExec.dll

            Filesize

            6KB

            MD5

            acc2b699edfea5bf5aae45aba3a41e96

            SHA1

            d2accf4d494e43ceb2cff69abe4dd17147d29cc2

            SHA256

            168a974eaa3f588d759db3f47c1a9fdc3494ba1fa1a73a84e5e3b2a4d58abd7e

            SHA512

            e29ea10ada98c71a18273b04f44f385b120d4e8473e441ce5748cfa44a23648814f2656f429b85440157988c88de776c6ac008dc38bf09cbb746c230a46c69fe

          • C:\Users\Admin\AppData\Local\Temp\nsr19A0.tmp\nsExec.dll

            Filesize

            6KB

            MD5

            acc2b699edfea5bf5aae45aba3a41e96

            SHA1

            d2accf4d494e43ceb2cff69abe4dd17147d29cc2

            SHA256

            168a974eaa3f588d759db3f47c1a9fdc3494ba1fa1a73a84e5e3b2a4d58abd7e

            SHA512

            e29ea10ada98c71a18273b04f44f385b120d4e8473e441ce5748cfa44a23648814f2656f429b85440157988c88de776c6ac008dc38bf09cbb746c230a46c69fe

          • C:\Windows\SysWOW64\hfnapi.dll

            Filesize

            106KB

            MD5

            a12b379a32fc25ff2e0107c4baa66ef1

            SHA1

            79626fea20de71bb08efd8a92d170f7fce93beca

            SHA256

            7a84f0fd9007555b686d9cf932b048ce726107058bbbd7d5b9cd4fca740a500e

            SHA512

            07cf482b6473950b69e2bc6075fc6520959798314a43fabbdd6715edd5b1df8b85d1d488f3c53255104fee62ecc4340b8f321a78aff333b074e4d38fe8d5dc4a

          • C:\Windows\SysWOW64\hfnapi.dll

            Filesize

            106KB

            MD5

            a12b379a32fc25ff2e0107c4baa66ef1

            SHA1

            79626fea20de71bb08efd8a92d170f7fce93beca

            SHA256

            7a84f0fd9007555b686d9cf932b048ce726107058bbbd7d5b9cd4fca740a500e

            SHA512

            07cf482b6473950b69e2bc6075fc6520959798314a43fabbdd6715edd5b1df8b85d1d488f3c53255104fee62ecc4340b8f321a78aff333b074e4d38fe8d5dc4a

          • C:\Windows\SysWOW64\hfnapi.dll

            Filesize

            106KB

            MD5

            a12b379a32fc25ff2e0107c4baa66ef1

            SHA1

            79626fea20de71bb08efd8a92d170f7fce93beca

            SHA256

            7a84f0fd9007555b686d9cf932b048ce726107058bbbd7d5b9cd4fca740a500e

            SHA512

            07cf482b6473950b69e2bc6075fc6520959798314a43fabbdd6715edd5b1df8b85d1d488f3c53255104fee62ecc4340b8f321a78aff333b074e4d38fe8d5dc4a

          • C:\Windows\SysWOW64\hfnapi.dll

            Filesize

            106KB

            MD5

            a12b379a32fc25ff2e0107c4baa66ef1

            SHA1

            79626fea20de71bb08efd8a92d170f7fce93beca

            SHA256

            7a84f0fd9007555b686d9cf932b048ce726107058bbbd7d5b9cd4fca740a500e

            SHA512

            07cf482b6473950b69e2bc6075fc6520959798314a43fabbdd6715edd5b1df8b85d1d488f3c53255104fee62ecc4340b8f321a78aff333b074e4d38fe8d5dc4a

          • C:\Windows\SysWOW64\hfpapi.dll

            Filesize

            244KB

            MD5

            d0de598bdefa22257c7ad55a36522f63

            SHA1

            f77a808509e1851fd09ba545ab4a5521edb86fd8

            SHA256

            5cd56b73f134d512befeab82cd55b7fe70cae8cf79b4784a9b41e8aaa9a15de8

            SHA512

            ffa7ddbc95824e800b950aa553f0ab4bd101e8ea5c34e7ef970d2bf6003e5750d24dd9f7c528748d2d340bad002ebb9dc802b6b0a357bc8f32b656543274279e

          • C:\Windows\SysWOW64\hfpapi.dll

            Filesize

            244KB

            MD5

            d0de598bdefa22257c7ad55a36522f63

            SHA1

            f77a808509e1851fd09ba545ab4a5521edb86fd8

            SHA256

            5cd56b73f134d512befeab82cd55b7fe70cae8cf79b4784a9b41e8aaa9a15de8

            SHA512

            ffa7ddbc95824e800b950aa553f0ab4bd101e8ea5c34e7ef970d2bf6003e5750d24dd9f7c528748d2d340bad002ebb9dc802b6b0a357bc8f32b656543274279e

          • C:\Windows\SysWOW64\hfpapi.dll

            Filesize

            244KB

            MD5

            d0de598bdefa22257c7ad55a36522f63

            SHA1

            f77a808509e1851fd09ba545ab4a5521edb86fd8

            SHA256

            5cd56b73f134d512befeab82cd55b7fe70cae8cf79b4784a9b41e8aaa9a15de8

            SHA512

            ffa7ddbc95824e800b950aa553f0ab4bd101e8ea5c34e7ef970d2bf6003e5750d24dd9f7c528748d2d340bad002ebb9dc802b6b0a357bc8f32b656543274279e

          • C:\Windows\SysWOW64\installd.exe

            Filesize

            108KB

            MD5

            e1aff4cbe353ef6ad04150150fdd0e11

            SHA1

            fbb7bef55e472175ea8e7e8f585184fef8c997b3

            SHA256

            0b92432c7d802fa8714a3a79338dc7f4162c61b385f106ce07e710843d1c9457

            SHA512

            74b2d65cb69bdb994c031ff64d83e1c5f4f57f38b230d1f172576d1377ae77d177ab047c78f17e167bb33212c31b2ed9f30657a33dffbb0b42d47479d22d9b36

          • C:\Windows\SysWOW64\installd.exe

            Filesize

            108KB

            MD5

            e1aff4cbe353ef6ad04150150fdd0e11

            SHA1

            fbb7bef55e472175ea8e7e8f585184fef8c997b3

            SHA256

            0b92432c7d802fa8714a3a79338dc7f4162c61b385f106ce07e710843d1c9457

            SHA512

            74b2d65cb69bdb994c031ff64d83e1c5f4f57f38b230d1f172576d1377ae77d177ab047c78f17e167bb33212c31b2ed9f30657a33dffbb0b42d47479d22d9b36

          • C:\Windows\SysWOW64\nethtsrv.exe

            Filesize

            176KB

            MD5

            ea561abfd9ba7fbc18c812edee336e84

            SHA1

            48c4bf7a3cebe805a1e9ba86e4541790171c9fe8

            SHA256

            791683ee0b394b9e843c89a115e6fbacc0e80f5bd90c6b7376a6b5d65adf9241

            SHA512

            2133cd69db68c420df592e1833554a4210460d9133588eab3b499ce68cc7275b46da217337737d4ba1e7e28f7105eed73b82d1635a2207b7508896c297f77f8f

          • C:\Windows\SysWOW64\nethtsrv.exe

            Filesize

            176KB

            MD5

            ea561abfd9ba7fbc18c812edee336e84

            SHA1

            48c4bf7a3cebe805a1e9ba86e4541790171c9fe8

            SHA256

            791683ee0b394b9e843c89a115e6fbacc0e80f5bd90c6b7376a6b5d65adf9241

            SHA512

            2133cd69db68c420df592e1833554a4210460d9133588eab3b499ce68cc7275b46da217337737d4ba1e7e28f7105eed73b82d1635a2207b7508896c297f77f8f

          • C:\Windows\SysWOW64\nethtsrv.exe

            Filesize

            176KB

            MD5

            ea561abfd9ba7fbc18c812edee336e84

            SHA1

            48c4bf7a3cebe805a1e9ba86e4541790171c9fe8

            SHA256

            791683ee0b394b9e843c89a115e6fbacc0e80f5bd90c6b7376a6b5d65adf9241

            SHA512

            2133cd69db68c420df592e1833554a4210460d9133588eab3b499ce68cc7275b46da217337737d4ba1e7e28f7105eed73b82d1635a2207b7508896c297f77f8f

          • C:\Windows\SysWOW64\netupdsrv.exe

            Filesize

            159KB

            MD5

            66c79b46c43aedd2dc040ef956018a14

            SHA1

            402fd6f62f575e74c91dc77c1e3eee84ec9429df

            SHA256

            e548886de680f0b81cce994908e88f4973296451337adfc328c94e52f7d42513

            SHA512

            bb7512151ca224f3e94e6b6edb46dd5ebfe79dcd6eb5f43359080ab64f70cda0ee6fe9eea48803959ec24c678d432657c0611aa2aa5bcf5fea64450d5f3c8f8b

          • C:\Windows\SysWOW64\netupdsrv.exe

            Filesize

            159KB

            MD5

            66c79b46c43aedd2dc040ef956018a14

            SHA1

            402fd6f62f575e74c91dc77c1e3eee84ec9429df

            SHA256

            e548886de680f0b81cce994908e88f4973296451337adfc328c94e52f7d42513

            SHA512

            bb7512151ca224f3e94e6b6edb46dd5ebfe79dcd6eb5f43359080ab64f70cda0ee6fe9eea48803959ec24c678d432657c0611aa2aa5bcf5fea64450d5f3c8f8b

          • C:\Windows\SysWOW64\netupdsrv.exe

            Filesize

            159KB

            MD5

            66c79b46c43aedd2dc040ef956018a14

            SHA1

            402fd6f62f575e74c91dc77c1e3eee84ec9429df

            SHA256

            e548886de680f0b81cce994908e88f4973296451337adfc328c94e52f7d42513

            SHA512

            bb7512151ca224f3e94e6b6edb46dd5ebfe79dcd6eb5f43359080ab64f70cda0ee6fe9eea48803959ec24c678d432657c0611aa2aa5bcf5fea64450d5f3c8f8b

          • memory/1800-165-0x0000000000000000-mapping.dmp

          • memory/1964-158-0x0000000000000000-mapping.dmp

          • memory/2196-136-0x0000000000000000-mapping.dmp

          • memory/2820-153-0x0000000000000000-mapping.dmp

          • memory/3124-142-0x0000000000000000-mapping.dmp

          • memory/3184-141-0x0000000000000000-mapping.dmp

          • memory/3204-132-0x0000000000360000-0x00000000007BE000-memory.dmp

            Filesize

            4.4MB

          • memory/3204-168-0x0000000000360000-0x00000000007BE000-memory.dmp

            Filesize

            4.4MB

          • memory/3568-159-0x0000000000000000-mapping.dmp

          • memory/3772-137-0x0000000000000000-mapping.dmp

          • memory/3908-166-0x0000000000000000-mapping.dmp

          • memory/4404-147-0x0000000000000000-mapping.dmp

          • memory/4940-140-0x0000000000000000-mapping.dmp