Analysis

  • max time kernel
    151s
  • max time network
    154s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20220812-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20220812-enlocale:en-usos:windows10-2004-x64system
  • submitted
    25/11/2022, 13:53

General

  • Target

    ba9bd79a9cc8ec12bbe71e60f091bb8c8d7bc8a4f98fc6df6d2eb8475360cd51.exe

  • Size

    561KB

  • MD5

    91ea20693df39310755bcf687a63bd48

  • SHA1

    43ba30ff58882a4ad756afe8780d29d2b7891a97

  • SHA256

    ba9bd79a9cc8ec12bbe71e60f091bb8c8d7bc8a4f98fc6df6d2eb8475360cd51

  • SHA512

    ba3f076b2c5ea14c42d76ba5635f2e34a0df00977b993e803181851145d45934a2fc80f14fa2aef925c47fa9f1aa27ade612375b2b9c79eb9737731cebf08197

  • SSDEEP

    12288:TPRYzEbfe8HpA5aNQiOrplv0mQoXbKZMpCBlvL5dNbT:OzwfB4jlvrXbKPvLvNbT

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\ba9bd79a9cc8ec12bbe71e60f091bb8c8d7bc8a4f98fc6df6d2eb8475360cd51.exe
    "C:\Users\Admin\AppData\Local\Temp\ba9bd79a9cc8ec12bbe71e60f091bb8c8d7bc8a4f98fc6df6d2eb8475360cd51.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:4736
    • C:\Windows\SysWOW64\net.exe
      net stop nethttpservice
      2⤵
      • Suspicious use of WriteProcessMemory
      PID:2016
      • C:\Windows\SysWOW64\net1.exe
        C:\Windows\system32\net1 stop nethttpservice
        3⤵
          PID:3020
      • C:\Windows\SysWOW64\net.exe
        net stop serviceupdater
        2⤵
        • Suspicious use of WriteProcessMemory
        PID:1444
        • C:\Windows\SysWOW64\net1.exe
          C:\Windows\system32\net1 stop serviceupdater
          3⤵
            PID:2892
        • C:\Windows\SysWOW64\installd.exe
          "C:\Windows\system32\installd.exe" nethfdrv
          2⤵
          • Executes dropped EXE
          • Loads dropped DLL
          PID:712
        • C:\Windows\SysWOW64\nethtsrv.exe
          "C:\Windows\system32\nethtsrv.exe" -nfdi
          2⤵
          • Executes dropped EXE
          • Loads dropped DLL
          PID:2620
        • C:\Windows\SysWOW64\netupdsrv.exe
          "C:\Windows\system32\netupdsrv.exe" -nfdi
          2⤵
          • Executes dropped EXE
          PID:5052
        • C:\Windows\SysWOW64\net.exe
          net start nethttpservice
          2⤵
          • Suspicious use of WriteProcessMemory
          PID:1924
          • C:\Windows\SysWOW64\net1.exe
            C:\Windows\system32\net1 start nethttpservice
            3⤵
              PID:1716
          • C:\Windows\SysWOW64\net.exe
            net start serviceupdater
            2⤵
            • Suspicious use of WriteProcessMemory
            PID:1604
            • C:\Windows\SysWOW64\net1.exe
              C:\Windows\system32\net1 start serviceupdater
              3⤵
                PID:3356
          • 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:2356
          • C:\Windows\SysWOW64\netupdsrv.exe
            C:\Windows\SysWOW64\netupdsrv.exe
            1⤵
            • Executes dropped EXE
            PID:204

          Network

          MITRE ATT&CK Enterprise v6

          Replay Monitor

          Loading Replay Monitor...

          Downloads

          • C:\Users\Admin\AppData\Local\Temp\nsfA34B.tmp\System.dll

            Filesize

            11KB

            MD5

            c17103ae9072a06da581dec998343fc1

            SHA1

            b72148c6bdfaada8b8c3f950e610ee7cf1da1f8d

            SHA256

            dc58d8ad81cacb0c1ed72e33bff8f23ea40b5252b5bb55d393a0903e6819ae2f

            SHA512

            d32a71aaef18e993f28096d536e41c4d016850721b31171513ce28bbd805a54fd290b7c3e9d935f72e676a1acfb4f0dcc89d95040a0dd29f2b6975855c18986f

          • C:\Users\Admin\AppData\Local\Temp\nsfA34B.tmp\nsExec.dll

            Filesize

            6KB

            MD5

            acc2b699edfea5bf5aae45aba3a41e96

            SHA1

            d2accf4d494e43ceb2cff69abe4dd17147d29cc2

            SHA256

            168a974eaa3f588d759db3f47c1a9fdc3494ba1fa1a73a84e5e3b2a4d58abd7e

            SHA512

            e29ea10ada98c71a18273b04f44f385b120d4e8473e441ce5748cfa44a23648814f2656f429b85440157988c88de776c6ac008dc38bf09cbb746c230a46c69fe

          • C:\Users\Admin\AppData\Local\Temp\nsfA34B.tmp\nsExec.dll

            Filesize

            6KB

            MD5

            acc2b699edfea5bf5aae45aba3a41e96

            SHA1

            d2accf4d494e43ceb2cff69abe4dd17147d29cc2

            SHA256

            168a974eaa3f588d759db3f47c1a9fdc3494ba1fa1a73a84e5e3b2a4d58abd7e

            SHA512

            e29ea10ada98c71a18273b04f44f385b120d4e8473e441ce5748cfa44a23648814f2656f429b85440157988c88de776c6ac008dc38bf09cbb746c230a46c69fe

          • C:\Users\Admin\AppData\Local\Temp\nsfA34B.tmp\nsExec.dll

            Filesize

            6KB

            MD5

            acc2b699edfea5bf5aae45aba3a41e96

            SHA1

            d2accf4d494e43ceb2cff69abe4dd17147d29cc2

            SHA256

            168a974eaa3f588d759db3f47c1a9fdc3494ba1fa1a73a84e5e3b2a4d58abd7e

            SHA512

            e29ea10ada98c71a18273b04f44f385b120d4e8473e441ce5748cfa44a23648814f2656f429b85440157988c88de776c6ac008dc38bf09cbb746c230a46c69fe

          • C:\Users\Admin\AppData\Local\Temp\nsfA34B.tmp\nsExec.dll

            Filesize

            6KB

            MD5

            acc2b699edfea5bf5aae45aba3a41e96

            SHA1

            d2accf4d494e43ceb2cff69abe4dd17147d29cc2

            SHA256

            168a974eaa3f588d759db3f47c1a9fdc3494ba1fa1a73a84e5e3b2a4d58abd7e

            SHA512

            e29ea10ada98c71a18273b04f44f385b120d4e8473e441ce5748cfa44a23648814f2656f429b85440157988c88de776c6ac008dc38bf09cbb746c230a46c69fe

          • C:\Users\Admin\AppData\Local\Temp\nsfA34B.tmp\nsExec.dll

            Filesize

            6KB

            MD5

            acc2b699edfea5bf5aae45aba3a41e96

            SHA1

            d2accf4d494e43ceb2cff69abe4dd17147d29cc2

            SHA256

            168a974eaa3f588d759db3f47c1a9fdc3494ba1fa1a73a84e5e3b2a4d58abd7e

            SHA512

            e29ea10ada98c71a18273b04f44f385b120d4e8473e441ce5748cfa44a23648814f2656f429b85440157988c88de776c6ac008dc38bf09cbb746c230a46c69fe

          • C:\Users\Admin\AppData\Local\Temp\nsfA34B.tmp\nsExec.dll

            Filesize

            6KB

            MD5

            acc2b699edfea5bf5aae45aba3a41e96

            SHA1

            d2accf4d494e43ceb2cff69abe4dd17147d29cc2

            SHA256

            168a974eaa3f588d759db3f47c1a9fdc3494ba1fa1a73a84e5e3b2a4d58abd7e

            SHA512

            e29ea10ada98c71a18273b04f44f385b120d4e8473e441ce5748cfa44a23648814f2656f429b85440157988c88de776c6ac008dc38bf09cbb746c230a46c69fe

          • C:\Users\Admin\AppData\Local\Temp\nsfA34B.tmp\nsExec.dll

            Filesize

            6KB

            MD5

            acc2b699edfea5bf5aae45aba3a41e96

            SHA1

            d2accf4d494e43ceb2cff69abe4dd17147d29cc2

            SHA256

            168a974eaa3f588d759db3f47c1a9fdc3494ba1fa1a73a84e5e3b2a4d58abd7e

            SHA512

            e29ea10ada98c71a18273b04f44f385b120d4e8473e441ce5748cfa44a23648814f2656f429b85440157988c88de776c6ac008dc38bf09cbb746c230a46c69fe

          • C:\Users\Admin\AppData\Local\Temp\nsfA34B.tmp\nsExec.dll

            Filesize

            6KB

            MD5

            acc2b699edfea5bf5aae45aba3a41e96

            SHA1

            d2accf4d494e43ceb2cff69abe4dd17147d29cc2

            SHA256

            168a974eaa3f588d759db3f47c1a9fdc3494ba1fa1a73a84e5e3b2a4d58abd7e

            SHA512

            e29ea10ada98c71a18273b04f44f385b120d4e8473e441ce5748cfa44a23648814f2656f429b85440157988c88de776c6ac008dc38bf09cbb746c230a46c69fe

          • C:\Windows\SysWOW64\hfnapi.dll

            Filesize

            106KB

            MD5

            25e154afa7cb45b9e87d78c39fe86131

            SHA1

            ac25d49a2b3812d08d0c6c094d204df216ae9460

            SHA256

            45e5794bc920e48d33151dd7ca6651bd35bf6ba3a5b65da9ec2d06784196db0f

            SHA512

            046b3d55766d63bc5835e8c48bab98051a90c0a3a81277f3bfb19a03b279fce7380af6257b5db9455d7bfe64adc083b0ca94828658338ce8d720969f89a4ca67

          • C:\Windows\SysWOW64\hfnapi.dll

            Filesize

            106KB

            MD5

            25e154afa7cb45b9e87d78c39fe86131

            SHA1

            ac25d49a2b3812d08d0c6c094d204df216ae9460

            SHA256

            45e5794bc920e48d33151dd7ca6651bd35bf6ba3a5b65da9ec2d06784196db0f

            SHA512

            046b3d55766d63bc5835e8c48bab98051a90c0a3a81277f3bfb19a03b279fce7380af6257b5db9455d7bfe64adc083b0ca94828658338ce8d720969f89a4ca67

          • C:\Windows\SysWOW64\hfnapi.dll

            Filesize

            106KB

            MD5

            25e154afa7cb45b9e87d78c39fe86131

            SHA1

            ac25d49a2b3812d08d0c6c094d204df216ae9460

            SHA256

            45e5794bc920e48d33151dd7ca6651bd35bf6ba3a5b65da9ec2d06784196db0f

            SHA512

            046b3d55766d63bc5835e8c48bab98051a90c0a3a81277f3bfb19a03b279fce7380af6257b5db9455d7bfe64adc083b0ca94828658338ce8d720969f89a4ca67

          • C:\Windows\SysWOW64\hfnapi.dll

            Filesize

            106KB

            MD5

            25e154afa7cb45b9e87d78c39fe86131

            SHA1

            ac25d49a2b3812d08d0c6c094d204df216ae9460

            SHA256

            45e5794bc920e48d33151dd7ca6651bd35bf6ba3a5b65da9ec2d06784196db0f

            SHA512

            046b3d55766d63bc5835e8c48bab98051a90c0a3a81277f3bfb19a03b279fce7380af6257b5db9455d7bfe64adc083b0ca94828658338ce8d720969f89a4ca67

          • C:\Windows\SysWOW64\hfpapi.dll

            Filesize

            244KB

            MD5

            abe16d0f1dee5e2ae840940eac4edac4

            SHA1

            4f96b1632b36ccfba601a9a5d47b8478e49249b3

            SHA256

            7b52a4c4ac88d7b9785a895688463ba9e37d922645a40bf6d43de9ef40be6ea9

            SHA512

            9c731f0e5ccb5f75944f81d7f83e641e630a2990cb30e1263f2f6cf7ca7932f963d42667e15d9ea6def8155d40ce3925a4ca00c9587c9c6aebadcacf6e333c31

          • C:\Windows\SysWOW64\hfpapi.dll

            Filesize

            244KB

            MD5

            abe16d0f1dee5e2ae840940eac4edac4

            SHA1

            4f96b1632b36ccfba601a9a5d47b8478e49249b3

            SHA256

            7b52a4c4ac88d7b9785a895688463ba9e37d922645a40bf6d43de9ef40be6ea9

            SHA512

            9c731f0e5ccb5f75944f81d7f83e641e630a2990cb30e1263f2f6cf7ca7932f963d42667e15d9ea6def8155d40ce3925a4ca00c9587c9c6aebadcacf6e333c31

          • C:\Windows\SysWOW64\hfpapi.dll

            Filesize

            244KB

            MD5

            abe16d0f1dee5e2ae840940eac4edac4

            SHA1

            4f96b1632b36ccfba601a9a5d47b8478e49249b3

            SHA256

            7b52a4c4ac88d7b9785a895688463ba9e37d922645a40bf6d43de9ef40be6ea9

            SHA512

            9c731f0e5ccb5f75944f81d7f83e641e630a2990cb30e1263f2f6cf7ca7932f963d42667e15d9ea6def8155d40ce3925a4ca00c9587c9c6aebadcacf6e333c31

          • C:\Windows\SysWOW64\installd.exe

            Filesize

            108KB

            MD5

            094cb958a131177c374c5abf6e82ba3b

            SHA1

            c38f1a9a31712afc1bd791738c4768f86e831e93

            SHA256

            c15f409f87cb42c0d0848a6bfd44bf25a5dd7de32b1e1894b4def4bef94b90b2

            SHA512

            e338713686cb482a2b3f05a37d00fd0ce6a7152b678789323f66cb475138f884ad16bcfd3b5bb84cb010f0071e2fbd1ec5d4b612a0e38a862b7b8771788f4657

          • C:\Windows\SysWOW64\installd.exe

            Filesize

            108KB

            MD5

            094cb958a131177c374c5abf6e82ba3b

            SHA1

            c38f1a9a31712afc1bd791738c4768f86e831e93

            SHA256

            c15f409f87cb42c0d0848a6bfd44bf25a5dd7de32b1e1894b4def4bef94b90b2

            SHA512

            e338713686cb482a2b3f05a37d00fd0ce6a7152b678789323f66cb475138f884ad16bcfd3b5bb84cb010f0071e2fbd1ec5d4b612a0e38a862b7b8771788f4657

          • C:\Windows\SysWOW64\nethtsrv.exe

            Filesize

            176KB

            MD5

            bfc3b222cbbbcd3a407a905fc94ad485

            SHA1

            b877e4e50edd3df9c33e493a1d17ebf26adf8aeb

            SHA256

            c5c44c8277e98075f0ed6f5c684c2db8721b97b2534fd23ba2507e2f0a7363d9

            SHA512

            59c9c02ac4980de1ad1a095074e8402111ff34ae278abb2cbb2d0979612fae0da581059ff0a36b728f3f1d014c72aaeecb6fc13348d917bd6c8ac7ed21109a8d

          • C:\Windows\SysWOW64\nethtsrv.exe

            Filesize

            176KB

            MD5

            bfc3b222cbbbcd3a407a905fc94ad485

            SHA1

            b877e4e50edd3df9c33e493a1d17ebf26adf8aeb

            SHA256

            c5c44c8277e98075f0ed6f5c684c2db8721b97b2534fd23ba2507e2f0a7363d9

            SHA512

            59c9c02ac4980de1ad1a095074e8402111ff34ae278abb2cbb2d0979612fae0da581059ff0a36b728f3f1d014c72aaeecb6fc13348d917bd6c8ac7ed21109a8d

          • C:\Windows\SysWOW64\nethtsrv.exe

            Filesize

            176KB

            MD5

            bfc3b222cbbbcd3a407a905fc94ad485

            SHA1

            b877e4e50edd3df9c33e493a1d17ebf26adf8aeb

            SHA256

            c5c44c8277e98075f0ed6f5c684c2db8721b97b2534fd23ba2507e2f0a7363d9

            SHA512

            59c9c02ac4980de1ad1a095074e8402111ff34ae278abb2cbb2d0979612fae0da581059ff0a36b728f3f1d014c72aaeecb6fc13348d917bd6c8ac7ed21109a8d

          • C:\Windows\SysWOW64\netupdsrv.exe

            Filesize

            158KB

            MD5

            03ad47e4d79a23f4d29f337e6e49af37

            SHA1

            8405ac038d3676a7891f6f0d7e22ddb9b0a8a169

            SHA256

            ead08a5195eb2f8c50d389c9eced2e7fb57d3f63dd439b73a75ffbba2b7656c9

            SHA512

            4e43126517a11bc64540f1a7afc3f4bcac35063d2b335486ff0ff746cd67217735f4d0da171442bf8064e3fe0f302ea281f9407ec3aa4fad9c5ab4b0a30bed82

          • C:\Windows\SysWOW64\netupdsrv.exe

            Filesize

            158KB

            MD5

            03ad47e4d79a23f4d29f337e6e49af37

            SHA1

            8405ac038d3676a7891f6f0d7e22ddb9b0a8a169

            SHA256

            ead08a5195eb2f8c50d389c9eced2e7fb57d3f63dd439b73a75ffbba2b7656c9

            SHA512

            4e43126517a11bc64540f1a7afc3f4bcac35063d2b335486ff0ff746cd67217735f4d0da171442bf8064e3fe0f302ea281f9407ec3aa4fad9c5ab4b0a30bed82

          • C:\Windows\SysWOW64\netupdsrv.exe

            Filesize

            158KB

            MD5

            03ad47e4d79a23f4d29f337e6e49af37

            SHA1

            8405ac038d3676a7891f6f0d7e22ddb9b0a8a169

            SHA256

            ead08a5195eb2f8c50d389c9eced2e7fb57d3f63dd439b73a75ffbba2b7656c9

            SHA512

            4e43126517a11bc64540f1a7afc3f4bcac35063d2b335486ff0ff746cd67217735f4d0da171442bf8064e3fe0f302ea281f9407ec3aa4fad9c5ab4b0a30bed82

          • memory/4736-132-0x0000000000360000-0x00000000007BE000-memory.dmp

            Filesize

            4.4MB

          • memory/4736-168-0x0000000000360000-0x00000000007BE000-memory.dmp

            Filesize

            4.4MB