Analysis

  • max time kernel
    91s
  • max time network
    151s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20220812-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20220812-enlocale:en-usos:windows10-2004-x64system
  • submitted
    23/11/2022, 23:09

General

  • Target

    7a0439d13135de24d22217c6c14e65b38a9a04d4fd4b3265703db380a1cc088c.exe

  • Size

    561KB

  • MD5

    480d68f9adca17db4fc686cbf3d932b1

  • SHA1

    8d165cafeb0cc7626968425421ee88161b2d394b

  • SHA256

    7a0439d13135de24d22217c6c14e65b38a9a04d4fd4b3265703db380a1cc088c

  • SHA512

    1050bb6b2b766d7bf624404b0715c487990cadf39a189ca662a88cb0031b39274b1fff77fd29daf0a0254f50a03ee1067e976a29ebb417e8d258cf4d9659983f

  • SSDEEP

    12288:cPRYzebfosAzDVeIfEaSUygPBvZnRi5peD75GTPDti:tzyfJwcaXrPJZI5SlyJ

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\7a0439d13135de24d22217c6c14e65b38a9a04d4fd4b3265703db380a1cc088c.exe
    "C:\Users\Admin\AppData\Local\Temp\7a0439d13135de24d22217c6c14e65b38a9a04d4fd4b3265703db380a1cc088c.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:4024
    • C:\Windows\SysWOW64\net.exe
      net stop nethttpservice
      2⤵
      • Suspicious use of WriteProcessMemory
      PID:3504
      • C:\Windows\SysWOW64\net1.exe
        C:\Windows\system32\net1 stop nethttpservice
        3⤵
          PID:4864
      • C:\Windows\SysWOW64\net.exe
        net stop serviceupdater
        2⤵
        • Suspicious use of WriteProcessMemory
        PID:4808
        • C:\Windows\SysWOW64\net1.exe
          C:\Windows\system32\net1 stop serviceupdater
          3⤵
            PID:5000
        • C:\Windows\SysWOW64\installd.exe
          "C:\Windows\system32\installd.exe" nethfdrv
          2⤵
          • Executes dropped EXE
          • Loads dropped DLL
          PID:1280
        • C:\Windows\SysWOW64\nethtsrv.exe
          "C:\Windows\system32\nethtsrv.exe" -nfdi
          2⤵
          • Executes dropped EXE
          • Loads dropped DLL
          PID:864
        • C:\Windows\SysWOW64\netupdsrv.exe
          "C:\Windows\system32\netupdsrv.exe" -nfdi
          2⤵
          • Executes dropped EXE
          PID:2952
        • C:\Windows\SysWOW64\net.exe
          net start nethttpservice
          2⤵
          • Suspicious use of WriteProcessMemory
          PID:2800
          • C:\Windows\SysWOW64\net1.exe
            C:\Windows\system32\net1 start nethttpservice
            3⤵
              PID:1308
          • C:\Windows\SysWOW64\net.exe
            net start serviceupdater
            2⤵
            • Suspicious use of WriteProcessMemory
            PID:2956
            • C:\Windows\SysWOW64\net1.exe
              C:\Windows\system32\net1 start serviceupdater
              3⤵
                PID:1300
          • 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:4460
          • C:\Windows\SysWOW64\netupdsrv.exe
            C:\Windows\SysWOW64\netupdsrv.exe
            1⤵
            • Executes dropped EXE
            PID:636

          Network

          MITRE ATT&CK Enterprise v6

          Replay Monitor

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          Downloads

          • C:\Users\Admin\AppData\Local\Temp\nslFDA0.tmp\System.dll

            Filesize

            11KB

            MD5

            c17103ae9072a06da581dec998343fc1

            SHA1

            b72148c6bdfaada8b8c3f950e610ee7cf1da1f8d

            SHA256

            dc58d8ad81cacb0c1ed72e33bff8f23ea40b5252b5bb55d393a0903e6819ae2f

            SHA512

            d32a71aaef18e993f28096d536e41c4d016850721b31171513ce28bbd805a54fd290b7c3e9d935f72e676a1acfb4f0dcc89d95040a0dd29f2b6975855c18986f

          • C:\Users\Admin\AppData\Local\Temp\nslFDA0.tmp\nsExec.dll

            Filesize

            6KB

            MD5

            acc2b699edfea5bf5aae45aba3a41e96

            SHA1

            d2accf4d494e43ceb2cff69abe4dd17147d29cc2

            SHA256

            168a974eaa3f588d759db3f47c1a9fdc3494ba1fa1a73a84e5e3b2a4d58abd7e

            SHA512

            e29ea10ada98c71a18273b04f44f385b120d4e8473e441ce5748cfa44a23648814f2656f429b85440157988c88de776c6ac008dc38bf09cbb746c230a46c69fe

          • C:\Users\Admin\AppData\Local\Temp\nslFDA0.tmp\nsExec.dll

            Filesize

            6KB

            MD5

            acc2b699edfea5bf5aae45aba3a41e96

            SHA1

            d2accf4d494e43ceb2cff69abe4dd17147d29cc2

            SHA256

            168a974eaa3f588d759db3f47c1a9fdc3494ba1fa1a73a84e5e3b2a4d58abd7e

            SHA512

            e29ea10ada98c71a18273b04f44f385b120d4e8473e441ce5748cfa44a23648814f2656f429b85440157988c88de776c6ac008dc38bf09cbb746c230a46c69fe

          • C:\Users\Admin\AppData\Local\Temp\nslFDA0.tmp\nsExec.dll

            Filesize

            6KB

            MD5

            acc2b699edfea5bf5aae45aba3a41e96

            SHA1

            d2accf4d494e43ceb2cff69abe4dd17147d29cc2

            SHA256

            168a974eaa3f588d759db3f47c1a9fdc3494ba1fa1a73a84e5e3b2a4d58abd7e

            SHA512

            e29ea10ada98c71a18273b04f44f385b120d4e8473e441ce5748cfa44a23648814f2656f429b85440157988c88de776c6ac008dc38bf09cbb746c230a46c69fe

          • C:\Users\Admin\AppData\Local\Temp\nslFDA0.tmp\nsExec.dll

            Filesize

            6KB

            MD5

            acc2b699edfea5bf5aae45aba3a41e96

            SHA1

            d2accf4d494e43ceb2cff69abe4dd17147d29cc2

            SHA256

            168a974eaa3f588d759db3f47c1a9fdc3494ba1fa1a73a84e5e3b2a4d58abd7e

            SHA512

            e29ea10ada98c71a18273b04f44f385b120d4e8473e441ce5748cfa44a23648814f2656f429b85440157988c88de776c6ac008dc38bf09cbb746c230a46c69fe

          • C:\Users\Admin\AppData\Local\Temp\nslFDA0.tmp\nsExec.dll

            Filesize

            6KB

            MD5

            acc2b699edfea5bf5aae45aba3a41e96

            SHA1

            d2accf4d494e43ceb2cff69abe4dd17147d29cc2

            SHA256

            168a974eaa3f588d759db3f47c1a9fdc3494ba1fa1a73a84e5e3b2a4d58abd7e

            SHA512

            e29ea10ada98c71a18273b04f44f385b120d4e8473e441ce5748cfa44a23648814f2656f429b85440157988c88de776c6ac008dc38bf09cbb746c230a46c69fe

          • C:\Users\Admin\AppData\Local\Temp\nslFDA0.tmp\nsExec.dll

            Filesize

            6KB

            MD5

            acc2b699edfea5bf5aae45aba3a41e96

            SHA1

            d2accf4d494e43ceb2cff69abe4dd17147d29cc2

            SHA256

            168a974eaa3f588d759db3f47c1a9fdc3494ba1fa1a73a84e5e3b2a4d58abd7e

            SHA512

            e29ea10ada98c71a18273b04f44f385b120d4e8473e441ce5748cfa44a23648814f2656f429b85440157988c88de776c6ac008dc38bf09cbb746c230a46c69fe

          • C:\Users\Admin\AppData\Local\Temp\nslFDA0.tmp\nsExec.dll

            Filesize

            6KB

            MD5

            acc2b699edfea5bf5aae45aba3a41e96

            SHA1

            d2accf4d494e43ceb2cff69abe4dd17147d29cc2

            SHA256

            168a974eaa3f588d759db3f47c1a9fdc3494ba1fa1a73a84e5e3b2a4d58abd7e

            SHA512

            e29ea10ada98c71a18273b04f44f385b120d4e8473e441ce5748cfa44a23648814f2656f429b85440157988c88de776c6ac008dc38bf09cbb746c230a46c69fe

          • C:\Users\Admin\AppData\Local\Temp\nslFDA0.tmp\nsExec.dll

            Filesize

            6KB

            MD5

            acc2b699edfea5bf5aae45aba3a41e96

            SHA1

            d2accf4d494e43ceb2cff69abe4dd17147d29cc2

            SHA256

            168a974eaa3f588d759db3f47c1a9fdc3494ba1fa1a73a84e5e3b2a4d58abd7e

            SHA512

            e29ea10ada98c71a18273b04f44f385b120d4e8473e441ce5748cfa44a23648814f2656f429b85440157988c88de776c6ac008dc38bf09cbb746c230a46c69fe

          • C:\Windows\SysWOW64\hfnapi.dll

            Filesize

            106KB

            MD5

            5a55ae4e2457f718f3a52438ecea9c28

            SHA1

            dae5c597d7daecfe9fc7db4bdd8fa9b847b81c76

            SHA256

            69c9f0c4dbca0d2da79cbd85e75c9dd6033088347f6ee530181ac2f0e0d3fa02

            SHA512

            66b2db84b68264cb85096f1c64bab18e7f8bfcb4d03b2d919e3ae1132290f015108542b722954ca88901269c091b85e2624ef83c85ab76efd5fe89cbe9f15f34

          • C:\Windows\SysWOW64\hfnapi.dll

            Filesize

            106KB

            MD5

            5a55ae4e2457f718f3a52438ecea9c28

            SHA1

            dae5c597d7daecfe9fc7db4bdd8fa9b847b81c76

            SHA256

            69c9f0c4dbca0d2da79cbd85e75c9dd6033088347f6ee530181ac2f0e0d3fa02

            SHA512

            66b2db84b68264cb85096f1c64bab18e7f8bfcb4d03b2d919e3ae1132290f015108542b722954ca88901269c091b85e2624ef83c85ab76efd5fe89cbe9f15f34

          • C:\Windows\SysWOW64\hfnapi.dll

            Filesize

            106KB

            MD5

            5a55ae4e2457f718f3a52438ecea9c28

            SHA1

            dae5c597d7daecfe9fc7db4bdd8fa9b847b81c76

            SHA256

            69c9f0c4dbca0d2da79cbd85e75c9dd6033088347f6ee530181ac2f0e0d3fa02

            SHA512

            66b2db84b68264cb85096f1c64bab18e7f8bfcb4d03b2d919e3ae1132290f015108542b722954ca88901269c091b85e2624ef83c85ab76efd5fe89cbe9f15f34

          • C:\Windows\SysWOW64\hfnapi.dll

            Filesize

            106KB

            MD5

            5a55ae4e2457f718f3a52438ecea9c28

            SHA1

            dae5c597d7daecfe9fc7db4bdd8fa9b847b81c76

            SHA256

            69c9f0c4dbca0d2da79cbd85e75c9dd6033088347f6ee530181ac2f0e0d3fa02

            SHA512

            66b2db84b68264cb85096f1c64bab18e7f8bfcb4d03b2d919e3ae1132290f015108542b722954ca88901269c091b85e2624ef83c85ab76efd5fe89cbe9f15f34

          • C:\Windows\SysWOW64\hfpapi.dll

            Filesize

            241KB

            MD5

            b18aeaedce0726eae2452c3caee3d3c1

            SHA1

            c0908458cbf9f075a73d282ce80e4960276aa099

            SHA256

            697465f89d43964279229609103ef39dffeb4db2d9da2e664bd39c2cc6a32c2f

            SHA512

            34cb4b8f0f6f14836a6f356550119a01e16b9551edc74128860efb6608ce1477e5b980de9e5f395de4b84707978cdaeeca00d63f3adf298ce7e97d56176c27cd

          • C:\Windows\SysWOW64\hfpapi.dll

            Filesize

            241KB

            MD5

            b18aeaedce0726eae2452c3caee3d3c1

            SHA1

            c0908458cbf9f075a73d282ce80e4960276aa099

            SHA256

            697465f89d43964279229609103ef39dffeb4db2d9da2e664bd39c2cc6a32c2f

            SHA512

            34cb4b8f0f6f14836a6f356550119a01e16b9551edc74128860efb6608ce1477e5b980de9e5f395de4b84707978cdaeeca00d63f3adf298ce7e97d56176c27cd

          • C:\Windows\SysWOW64\hfpapi.dll

            Filesize

            241KB

            MD5

            b18aeaedce0726eae2452c3caee3d3c1

            SHA1

            c0908458cbf9f075a73d282ce80e4960276aa099

            SHA256

            697465f89d43964279229609103ef39dffeb4db2d9da2e664bd39c2cc6a32c2f

            SHA512

            34cb4b8f0f6f14836a6f356550119a01e16b9551edc74128860efb6608ce1477e5b980de9e5f395de4b84707978cdaeeca00d63f3adf298ce7e97d56176c27cd

          • C:\Windows\SysWOW64\installd.exe

            Filesize

            108KB

            MD5

            99ea080e908de8e6c80a46e39dc1f2c3

            SHA1

            0a0f683a77423bbd0447968575e786f1416e0390

            SHA256

            4a99f98f541c1c2e9adf7d36cc9c801dfcaaaa7a064bd035e63605dbb639a30e

            SHA512

            f75786a3882c9eed95875fef358436a325907a2b66f2a0566a9453f568ab4b2abc244fba937ba0bbfe8b6938b00c6e25103c2bd310d00c1a0cc715b28457ee3a

          • C:\Windows\SysWOW64\installd.exe

            Filesize

            108KB

            MD5

            99ea080e908de8e6c80a46e39dc1f2c3

            SHA1

            0a0f683a77423bbd0447968575e786f1416e0390

            SHA256

            4a99f98f541c1c2e9adf7d36cc9c801dfcaaaa7a064bd035e63605dbb639a30e

            SHA512

            f75786a3882c9eed95875fef358436a325907a2b66f2a0566a9453f568ab4b2abc244fba937ba0bbfe8b6938b00c6e25103c2bd310d00c1a0cc715b28457ee3a

          • C:\Windows\SysWOW64\nethtsrv.exe

            Filesize

            176KB

            MD5

            fd67ee50edfaa261936826c6a4682698

            SHA1

            28585ee33a3190d4ed40f7850dd223ae8b356411

            SHA256

            3896e9d2021ef29b43ff52d984a65fbeaf89fa3c273cb24e401ed76488c148d9

            SHA512

            d0d2806235ba8a1623afd22a13c5056698107e0d464755d920722b052f1d765640f1c7d0ae177f8221c8756bc970f66cb8da18ecc22e9c8e7796843859053959

          • C:\Windows\SysWOW64\nethtsrv.exe

            Filesize

            176KB

            MD5

            fd67ee50edfaa261936826c6a4682698

            SHA1

            28585ee33a3190d4ed40f7850dd223ae8b356411

            SHA256

            3896e9d2021ef29b43ff52d984a65fbeaf89fa3c273cb24e401ed76488c148d9

            SHA512

            d0d2806235ba8a1623afd22a13c5056698107e0d464755d920722b052f1d765640f1c7d0ae177f8221c8756bc970f66cb8da18ecc22e9c8e7796843859053959

          • C:\Windows\SysWOW64\nethtsrv.exe

            Filesize

            176KB

            MD5

            fd67ee50edfaa261936826c6a4682698

            SHA1

            28585ee33a3190d4ed40f7850dd223ae8b356411

            SHA256

            3896e9d2021ef29b43ff52d984a65fbeaf89fa3c273cb24e401ed76488c148d9

            SHA512

            d0d2806235ba8a1623afd22a13c5056698107e0d464755d920722b052f1d765640f1c7d0ae177f8221c8756bc970f66cb8da18ecc22e9c8e7796843859053959

          • C:\Windows\SysWOW64\netupdsrv.exe

            Filesize

            158KB

            MD5

            27c0caf899484ebf0cc61e2baa9847c7

            SHA1

            928c0cc667bee62e83d43890e0f21d6322c369ce

            SHA256

            a0604b714e3768a81df8bd721cbd338e7df1f5bcfce92e5b07edee96b65f8c74

            SHA512

            0e7fef32dbab41e603c7376a9b6337e14651f7c4f1aad4c45b9bfa05a98812696dd4387cfe714a76f101d3feca349430dfe2c1f0971ea4eb6e66013e8b524311

          • C:\Windows\SysWOW64\netupdsrv.exe

            Filesize

            158KB

            MD5

            27c0caf899484ebf0cc61e2baa9847c7

            SHA1

            928c0cc667bee62e83d43890e0f21d6322c369ce

            SHA256

            a0604b714e3768a81df8bd721cbd338e7df1f5bcfce92e5b07edee96b65f8c74

            SHA512

            0e7fef32dbab41e603c7376a9b6337e14651f7c4f1aad4c45b9bfa05a98812696dd4387cfe714a76f101d3feca349430dfe2c1f0971ea4eb6e66013e8b524311

          • C:\Windows\SysWOW64\netupdsrv.exe

            Filesize

            158KB

            MD5

            27c0caf899484ebf0cc61e2baa9847c7

            SHA1

            928c0cc667bee62e83d43890e0f21d6322c369ce

            SHA256

            a0604b714e3768a81df8bd721cbd338e7df1f5bcfce92e5b07edee96b65f8c74

            SHA512

            0e7fef32dbab41e603c7376a9b6337e14651f7c4f1aad4c45b9bfa05a98812696dd4387cfe714a76f101d3feca349430dfe2c1f0971ea4eb6e66013e8b524311

          • memory/4024-132-0x0000000000360000-0x00000000007BE000-memory.dmp

            Filesize

            4.4MB

          • memory/4024-147-0x0000000000360000-0x00000000007BE000-memory.dmp

            Filesize

            4.4MB

          • memory/4024-169-0x0000000000360000-0x00000000007BE000-memory.dmp

            Filesize

            4.4MB