Analysis

  • max time kernel
    148s
  • max time network
    152s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20220812-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20220812-enlocale:en-usos:windows10-2004-x64system
  • submitted
    22/11/2022, 00:25

General

  • Target

    32fb2daee97b4b4054c9df65f0488d7398211c68d6a314afd8310c4e7bb1f5f8.exe

  • Size

    695KB

  • MD5

    43af0121b3b5ce65684c3745d2f70b74

  • SHA1

    1fbf76ba2ee4bf2bc0c8553de914ee330af2785b

  • SHA256

    32fb2daee97b4b4054c9df65f0488d7398211c68d6a314afd8310c4e7bb1f5f8

  • SHA512

    f3bb1af2b5a1586eb8d6ce82ea6097ba27b2de6cdef01752e641f7863bb0b186b73fd90d8287e35dfe7116f694e059c9ed6eeb00bd37cb411fd501e74534e873

  • SSDEEP

    12288:VAbu3fQ+thk6EzmbfuY9/3JuNi5HSR+6BedCW18fWpfsqpLoCYE+:VAbuPPEzqfzfANi5HSR+Zo+dR1JvYE+

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\32fb2daee97b4b4054c9df65f0488d7398211c68d6a314afd8310c4e7bb1f5f8.exe
    "C:\Users\Admin\AppData\Local\Temp\32fb2daee97b4b4054c9df65f0488d7398211c68d6a314afd8310c4e7bb1f5f8.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:2412
    • C:\Windows\SysWOW64\net.exe
      net stop nethttpservice
      2⤵
      • Suspicious use of WriteProcessMemory
      PID:3292
      • C:\Windows\SysWOW64\net1.exe
        C:\Windows\system32\net1 stop nethttpservice
        3⤵
          PID:4364
      • C:\Windows\SysWOW64\net.exe
        net stop serviceupdater
        2⤵
        • Suspicious use of WriteProcessMemory
        PID:1836
        • C:\Windows\SysWOW64\net1.exe
          C:\Windows\system32\net1 stop serviceupdater
          3⤵
            PID:5048
        • C:\Windows\SysWOW64\installd.exe
          "C:\Windows\system32\installd.exe" nethfdrv
          2⤵
          • Executes dropped EXE
          • Loads dropped DLL
          PID:5008
        • C:\Windows\SysWOW64\nethtsrv.exe
          "C:\Windows\system32\nethtsrv.exe" -nfdi
          2⤵
          • Executes dropped EXE
          • Loads dropped DLL
          PID:4864
        • C:\Windows\SysWOW64\netupdsrv.exe
          "C:\Windows\system32\netupdsrv.exe" -nfdi
          2⤵
          • Executes dropped EXE
          PID:2076
        • C:\Windows\SysWOW64\net.exe
          net start nethttpservice
          2⤵
          • Suspicious use of WriteProcessMemory
          PID:3716
          • C:\Windows\SysWOW64\net1.exe
            C:\Windows\system32\net1 start nethttpservice
            3⤵
              PID:3592
          • C:\Windows\SysWOW64\net.exe
            net start serviceupdater
            2⤵
            • Suspicious use of WriteProcessMemory
            PID:2660
            • C:\Windows\SysWOW64\net1.exe
              C:\Windows\system32\net1 start serviceupdater
              3⤵
                PID:4488
          • 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:4916
          • C:\Windows\SysWOW64\netupdsrv.exe
            C:\Windows\SysWOW64\netupdsrv.exe
            1⤵
            • Executes dropped EXE
            PID:2376

          Network

          MITRE ATT&CK Enterprise v6

          Replay Monitor

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          Downloads

          • C:\Users\Admin\AppData\Local\Temp\nsl89B9.tmp\System.dll

            Filesize

            11KB

            MD5

            c17103ae9072a06da581dec998343fc1

            SHA1

            b72148c6bdfaada8b8c3f950e610ee7cf1da1f8d

            SHA256

            dc58d8ad81cacb0c1ed72e33bff8f23ea40b5252b5bb55d393a0903e6819ae2f

            SHA512

            d32a71aaef18e993f28096d536e41c4d016850721b31171513ce28bbd805a54fd290b7c3e9d935f72e676a1acfb4f0dcc89d95040a0dd29f2b6975855c18986f

          • C:\Users\Admin\AppData\Local\Temp\nsl89B9.tmp\nsExec.dll

            Filesize

            6KB

            MD5

            acc2b699edfea5bf5aae45aba3a41e96

            SHA1

            d2accf4d494e43ceb2cff69abe4dd17147d29cc2

            SHA256

            168a974eaa3f588d759db3f47c1a9fdc3494ba1fa1a73a84e5e3b2a4d58abd7e

            SHA512

            e29ea10ada98c71a18273b04f44f385b120d4e8473e441ce5748cfa44a23648814f2656f429b85440157988c88de776c6ac008dc38bf09cbb746c230a46c69fe

          • C:\Users\Admin\AppData\Local\Temp\nsl89B9.tmp\nsExec.dll

            Filesize

            6KB

            MD5

            acc2b699edfea5bf5aae45aba3a41e96

            SHA1

            d2accf4d494e43ceb2cff69abe4dd17147d29cc2

            SHA256

            168a974eaa3f588d759db3f47c1a9fdc3494ba1fa1a73a84e5e3b2a4d58abd7e

            SHA512

            e29ea10ada98c71a18273b04f44f385b120d4e8473e441ce5748cfa44a23648814f2656f429b85440157988c88de776c6ac008dc38bf09cbb746c230a46c69fe

          • C:\Users\Admin\AppData\Local\Temp\nsl89B9.tmp\nsExec.dll

            Filesize

            6KB

            MD5

            acc2b699edfea5bf5aae45aba3a41e96

            SHA1

            d2accf4d494e43ceb2cff69abe4dd17147d29cc2

            SHA256

            168a974eaa3f588d759db3f47c1a9fdc3494ba1fa1a73a84e5e3b2a4d58abd7e

            SHA512

            e29ea10ada98c71a18273b04f44f385b120d4e8473e441ce5748cfa44a23648814f2656f429b85440157988c88de776c6ac008dc38bf09cbb746c230a46c69fe

          • C:\Users\Admin\AppData\Local\Temp\nsl89B9.tmp\nsExec.dll

            Filesize

            6KB

            MD5

            acc2b699edfea5bf5aae45aba3a41e96

            SHA1

            d2accf4d494e43ceb2cff69abe4dd17147d29cc2

            SHA256

            168a974eaa3f588d759db3f47c1a9fdc3494ba1fa1a73a84e5e3b2a4d58abd7e

            SHA512

            e29ea10ada98c71a18273b04f44f385b120d4e8473e441ce5748cfa44a23648814f2656f429b85440157988c88de776c6ac008dc38bf09cbb746c230a46c69fe

          • C:\Users\Admin\AppData\Local\Temp\nsl89B9.tmp\nsExec.dll

            Filesize

            6KB

            MD5

            acc2b699edfea5bf5aae45aba3a41e96

            SHA1

            d2accf4d494e43ceb2cff69abe4dd17147d29cc2

            SHA256

            168a974eaa3f588d759db3f47c1a9fdc3494ba1fa1a73a84e5e3b2a4d58abd7e

            SHA512

            e29ea10ada98c71a18273b04f44f385b120d4e8473e441ce5748cfa44a23648814f2656f429b85440157988c88de776c6ac008dc38bf09cbb746c230a46c69fe

          • C:\Users\Admin\AppData\Local\Temp\nsl89B9.tmp\nsExec.dll

            Filesize

            6KB

            MD5

            acc2b699edfea5bf5aae45aba3a41e96

            SHA1

            d2accf4d494e43ceb2cff69abe4dd17147d29cc2

            SHA256

            168a974eaa3f588d759db3f47c1a9fdc3494ba1fa1a73a84e5e3b2a4d58abd7e

            SHA512

            e29ea10ada98c71a18273b04f44f385b120d4e8473e441ce5748cfa44a23648814f2656f429b85440157988c88de776c6ac008dc38bf09cbb746c230a46c69fe

          • C:\Users\Admin\AppData\Local\Temp\nsl89B9.tmp\nsExec.dll

            Filesize

            6KB

            MD5

            acc2b699edfea5bf5aae45aba3a41e96

            SHA1

            d2accf4d494e43ceb2cff69abe4dd17147d29cc2

            SHA256

            168a974eaa3f588d759db3f47c1a9fdc3494ba1fa1a73a84e5e3b2a4d58abd7e

            SHA512

            e29ea10ada98c71a18273b04f44f385b120d4e8473e441ce5748cfa44a23648814f2656f429b85440157988c88de776c6ac008dc38bf09cbb746c230a46c69fe

          • C:\Users\Admin\AppData\Local\Temp\nsl89B9.tmp\nsExec.dll

            Filesize

            6KB

            MD5

            acc2b699edfea5bf5aae45aba3a41e96

            SHA1

            d2accf4d494e43ceb2cff69abe4dd17147d29cc2

            SHA256

            168a974eaa3f588d759db3f47c1a9fdc3494ba1fa1a73a84e5e3b2a4d58abd7e

            SHA512

            e29ea10ada98c71a18273b04f44f385b120d4e8473e441ce5748cfa44a23648814f2656f429b85440157988c88de776c6ac008dc38bf09cbb746c230a46c69fe

          • C:\Windows\SysWOW64\hfnapi.dll

            Filesize

            106KB

            MD5

            64fddddd467d56dd947c29c206c09523

            SHA1

            1f3c0689614b1f171056b0d60c7c6d6b4bb3ac17

            SHA256

            6a1ccb19f8978ebd7e621c07c7638deb59e3ebd105c5ee27ee87a19b4e6d54b2

            SHA512

            e1ec7577d7e14569b6c33bca8a5f7121e795c0ae413f62f05e0aab095d29e30240a546718764a5dcb861c0febc1e1b2b91692d7835ada73157225a39ef99d900

          • C:\Windows\SysWOW64\hfnapi.dll

            Filesize

            106KB

            MD5

            64fddddd467d56dd947c29c206c09523

            SHA1

            1f3c0689614b1f171056b0d60c7c6d6b4bb3ac17

            SHA256

            6a1ccb19f8978ebd7e621c07c7638deb59e3ebd105c5ee27ee87a19b4e6d54b2

            SHA512

            e1ec7577d7e14569b6c33bca8a5f7121e795c0ae413f62f05e0aab095d29e30240a546718764a5dcb861c0febc1e1b2b91692d7835ada73157225a39ef99d900

          • C:\Windows\SysWOW64\hfnapi.dll

            Filesize

            106KB

            MD5

            64fddddd467d56dd947c29c206c09523

            SHA1

            1f3c0689614b1f171056b0d60c7c6d6b4bb3ac17

            SHA256

            6a1ccb19f8978ebd7e621c07c7638deb59e3ebd105c5ee27ee87a19b4e6d54b2

            SHA512

            e1ec7577d7e14569b6c33bca8a5f7121e795c0ae413f62f05e0aab095d29e30240a546718764a5dcb861c0febc1e1b2b91692d7835ada73157225a39ef99d900

          • C:\Windows\SysWOW64\hfnapi.dll

            Filesize

            106KB

            MD5

            64fddddd467d56dd947c29c206c09523

            SHA1

            1f3c0689614b1f171056b0d60c7c6d6b4bb3ac17

            SHA256

            6a1ccb19f8978ebd7e621c07c7638deb59e3ebd105c5ee27ee87a19b4e6d54b2

            SHA512

            e1ec7577d7e14569b6c33bca8a5f7121e795c0ae413f62f05e0aab095d29e30240a546718764a5dcb861c0febc1e1b2b91692d7835ada73157225a39ef99d900

          • C:\Windows\SysWOW64\hfpapi.dll

            Filesize

            241KB

            MD5

            5f1ed2a7320cac324d36155debd9b01a

            SHA1

            40a5c73637d88b6093ff10eb69804f807cfb994b

            SHA256

            2e3904b723f5825d449d77b0242a6783f2ac4913b35b1f71de813c25ed4c6d68

            SHA512

            b055fbe8075ccb5d30280d67b0c79f46e852d5c4fd8fd9821a34c22cc0b8ff8ab09545808ac65632259dcfb072720af9df46080aff6c1dbf03c04fc8349d3b01

          • C:\Windows\SysWOW64\hfpapi.dll

            Filesize

            241KB

            MD5

            5f1ed2a7320cac324d36155debd9b01a

            SHA1

            40a5c73637d88b6093ff10eb69804f807cfb994b

            SHA256

            2e3904b723f5825d449d77b0242a6783f2ac4913b35b1f71de813c25ed4c6d68

            SHA512

            b055fbe8075ccb5d30280d67b0c79f46e852d5c4fd8fd9821a34c22cc0b8ff8ab09545808ac65632259dcfb072720af9df46080aff6c1dbf03c04fc8349d3b01

          • C:\Windows\SysWOW64\hfpapi.dll

            Filesize

            241KB

            MD5

            5f1ed2a7320cac324d36155debd9b01a

            SHA1

            40a5c73637d88b6093ff10eb69804f807cfb994b

            SHA256

            2e3904b723f5825d449d77b0242a6783f2ac4913b35b1f71de813c25ed4c6d68

            SHA512

            b055fbe8075ccb5d30280d67b0c79f46e852d5c4fd8fd9821a34c22cc0b8ff8ab09545808ac65632259dcfb072720af9df46080aff6c1dbf03c04fc8349d3b01

          • C:\Windows\SysWOW64\installd.exe

            Filesize

            108KB

            MD5

            dfbd08f0326a49ef387d1fa24984da82

            SHA1

            a928904d01b71090cb90548ebedffab0ccd14775

            SHA256

            b01ed2df8f120711d3a42b38ed98c791dee136a15b3b6b0a2fc5c97f7d70acdb

            SHA512

            1b9a993bf4813ca5b358f850699f71829f2df8cc2825cbc02e7d96d04501a024e3b4a9eccbe110c4ed7c2f5f6989bdb0d142bb391f3f7c720eee5d94cf7f5a3f

          • C:\Windows\SysWOW64\installd.exe

            Filesize

            108KB

            MD5

            dfbd08f0326a49ef387d1fa24984da82

            SHA1

            a928904d01b71090cb90548ebedffab0ccd14775

            SHA256

            b01ed2df8f120711d3a42b38ed98c791dee136a15b3b6b0a2fc5c97f7d70acdb

            SHA512

            1b9a993bf4813ca5b358f850699f71829f2df8cc2825cbc02e7d96d04501a024e3b4a9eccbe110c4ed7c2f5f6989bdb0d142bb391f3f7c720eee5d94cf7f5a3f

          • C:\Windows\SysWOW64\nethtsrv.exe

            Filesize

            176KB

            MD5

            5b8ca9a1cf18ce9fdcd26f6505f19d6c

            SHA1

            f466cfaa42a02e00bab471b163ac9d46372d1820

            SHA256

            076f3181c4d56c728d453e1695fa4ee3054b459b7eddc46419edb075596a9692

            SHA512

            4a50b67d1ebff7b6f6eea0b8e3fd4bd12f97d5bc48bdbf0e34d52c1188259e1866658a2dda64fe5433d78418d70ca256065d247cacc88816d8242c0bae27c3f0

          • C:\Windows\SysWOW64\nethtsrv.exe

            Filesize

            176KB

            MD5

            5b8ca9a1cf18ce9fdcd26f6505f19d6c

            SHA1

            f466cfaa42a02e00bab471b163ac9d46372d1820

            SHA256

            076f3181c4d56c728d453e1695fa4ee3054b459b7eddc46419edb075596a9692

            SHA512

            4a50b67d1ebff7b6f6eea0b8e3fd4bd12f97d5bc48bdbf0e34d52c1188259e1866658a2dda64fe5433d78418d70ca256065d247cacc88816d8242c0bae27c3f0

          • C:\Windows\SysWOW64\nethtsrv.exe

            Filesize

            176KB

            MD5

            5b8ca9a1cf18ce9fdcd26f6505f19d6c

            SHA1

            f466cfaa42a02e00bab471b163ac9d46372d1820

            SHA256

            076f3181c4d56c728d453e1695fa4ee3054b459b7eddc46419edb075596a9692

            SHA512

            4a50b67d1ebff7b6f6eea0b8e3fd4bd12f97d5bc48bdbf0e34d52c1188259e1866658a2dda64fe5433d78418d70ca256065d247cacc88816d8242c0bae27c3f0

          • C:\Windows\SysWOW64\netupdsrv.exe

            Filesize

            158KB

            MD5

            70e2a1c67548da22bc1df490ab7e88c8

            SHA1

            1d0e57b1177a81d4d6db8f880b1c00a50ff01496

            SHA256

            889893b83603f45086c6a03d36435d3fda31ed590d6cf4109df6486517f49cfa

            SHA512

            599de779b800edbea1dd7039128607a3361d29c18d162e0a5aefe0dda38797d0046f2e87d1ac572313a45bff714367fe09a8972d933798c5b5eb5acacc154415

          • C:\Windows\SysWOW64\netupdsrv.exe

            Filesize

            158KB

            MD5

            70e2a1c67548da22bc1df490ab7e88c8

            SHA1

            1d0e57b1177a81d4d6db8f880b1c00a50ff01496

            SHA256

            889893b83603f45086c6a03d36435d3fda31ed590d6cf4109df6486517f49cfa

            SHA512

            599de779b800edbea1dd7039128607a3361d29c18d162e0a5aefe0dda38797d0046f2e87d1ac572313a45bff714367fe09a8972d933798c5b5eb5acacc154415

          • C:\Windows\SysWOW64\netupdsrv.exe

            Filesize

            158KB

            MD5

            70e2a1c67548da22bc1df490ab7e88c8

            SHA1

            1d0e57b1177a81d4d6db8f880b1c00a50ff01496

            SHA256

            889893b83603f45086c6a03d36435d3fda31ed590d6cf4109df6486517f49cfa

            SHA512

            599de779b800edbea1dd7039128607a3361d29c18d162e0a5aefe0dda38797d0046f2e87d1ac572313a45bff714367fe09a8972d933798c5b5eb5acacc154415

          • memory/2412-137-0x0000000000340000-0x00000000007BE000-memory.dmp

            Filesize

            4.5MB

          • memory/2412-168-0x0000000000340000-0x00000000007BE000-memory.dmp

            Filesize

            4.5MB