Analysis

  • max time kernel
    152s
  • max time network
    183s
  • 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 10:27

General

  • Target

    44e9ddf38f9eb6adbc40a43c2d3b01ed7ff1327d8696c45a32a3317e048ba343.exe

  • Size

    602KB

  • MD5

    f2d1675369352fbfe094051681c78dc1

  • SHA1

    a320bb30ae17d76506cf8029a0e3d949b2c48b9d

  • SHA256

    44e9ddf38f9eb6adbc40a43c2d3b01ed7ff1327d8696c45a32a3317e048ba343

  • SHA512

    f4693a5af7e7b74ff9c63a71f5260a2441260e73d6fb1a9a815ce8eb0436c8589541b8164fd7549d5799fd1d027eeb0485623c1bbdc8747d2658b1ab1a7ccd33

  • SSDEEP

    12288:/Iny5DYTeAAILG3ojKaFgZhgQtcwKciHZmtx:nUTTWQKPhe

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\44e9ddf38f9eb6adbc40a43c2d3b01ed7ff1327d8696c45a32a3317e048ba343.exe
    "C:\Users\Admin\AppData\Local\Temp\44e9ddf38f9eb6adbc40a43c2d3b01ed7ff1327d8696c45a32a3317e048ba343.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:4296
    • C:\Windows\SysWOW64\net.exe
      net stop nethttpservice
      2⤵
      • Suspicious use of WriteProcessMemory
      PID:3392
      • C:\Windows\SysWOW64\net1.exe
        C:\Windows\system32\net1 stop nethttpservice
        3⤵
          PID:4596
      • C:\Windows\SysWOW64\net.exe
        net stop serviceupdater
        2⤵
        • Suspicious use of WriteProcessMemory
        PID:1000
        • C:\Windows\SysWOW64\net1.exe
          C:\Windows\system32\net1 stop serviceupdater
          3⤵
            PID:3224
        • C:\Windows\SysWOW64\installd.exe
          "C:\Windows\system32\installd.exe" nethfdrv
          2⤵
          • Executes dropped EXE
          • Loads dropped DLL
          PID:4872
        • C:\Windows\SysWOW64\nethtsrv.exe
          "C:\Windows\system32\nethtsrv.exe" -nfdi
          2⤵
          • Executes dropped EXE
          • Loads dropped DLL
          PID:888
        • C:\Windows\SysWOW64\netupdsrv.exe
          "C:\Windows\system32\netupdsrv.exe" -nfdi
          2⤵
          • Executes dropped EXE
          PID:4180
        • C:\Windows\SysWOW64\net.exe
          net start nethttpservice
          2⤵
          • Suspicious use of WriteProcessMemory
          PID:2212
          • C:\Windows\SysWOW64\net1.exe
            C:\Windows\system32\net1 start nethttpservice
            3⤵
              PID:1044
          • C:\Windows\SysWOW64\net.exe
            net start serviceupdater
            2⤵
            • Suspicious use of WriteProcessMemory
            PID:4436
            • C:\Windows\SysWOW64\net1.exe
              C:\Windows\system32\net1 start serviceupdater
              3⤵
                PID:3984
          • 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:4432
          • C:\Windows\SysWOW64\netupdsrv.exe
            C:\Windows\SysWOW64\netupdsrv.exe
            1⤵
            • Executes dropped EXE
            PID:3908

          Network

          MITRE ATT&CK Enterprise v6

          Replay Monitor

          Loading Replay Monitor...

          Downloads

          • C:\Users\Admin\AppData\Local\Temp\nso8F42.tmp\System.dll

            Filesize

            11KB

            MD5

            c17103ae9072a06da581dec998343fc1

            SHA1

            b72148c6bdfaada8b8c3f950e610ee7cf1da1f8d

            SHA256

            dc58d8ad81cacb0c1ed72e33bff8f23ea40b5252b5bb55d393a0903e6819ae2f

            SHA512

            d32a71aaef18e993f28096d536e41c4d016850721b31171513ce28bbd805a54fd290b7c3e9d935f72e676a1acfb4f0dcc89d95040a0dd29f2b6975855c18986f

          • C:\Users\Admin\AppData\Local\Temp\nso8F42.tmp\nsExec.dll

            Filesize

            6KB

            MD5

            acc2b699edfea5bf5aae45aba3a41e96

            SHA1

            d2accf4d494e43ceb2cff69abe4dd17147d29cc2

            SHA256

            168a974eaa3f588d759db3f47c1a9fdc3494ba1fa1a73a84e5e3b2a4d58abd7e

            SHA512

            e29ea10ada98c71a18273b04f44f385b120d4e8473e441ce5748cfa44a23648814f2656f429b85440157988c88de776c6ac008dc38bf09cbb746c230a46c69fe

          • C:\Users\Admin\AppData\Local\Temp\nso8F42.tmp\nsExec.dll

            Filesize

            6KB

            MD5

            acc2b699edfea5bf5aae45aba3a41e96

            SHA1

            d2accf4d494e43ceb2cff69abe4dd17147d29cc2

            SHA256

            168a974eaa3f588d759db3f47c1a9fdc3494ba1fa1a73a84e5e3b2a4d58abd7e

            SHA512

            e29ea10ada98c71a18273b04f44f385b120d4e8473e441ce5748cfa44a23648814f2656f429b85440157988c88de776c6ac008dc38bf09cbb746c230a46c69fe

          • C:\Users\Admin\AppData\Local\Temp\nso8F42.tmp\nsExec.dll

            Filesize

            6KB

            MD5

            acc2b699edfea5bf5aae45aba3a41e96

            SHA1

            d2accf4d494e43ceb2cff69abe4dd17147d29cc2

            SHA256

            168a974eaa3f588d759db3f47c1a9fdc3494ba1fa1a73a84e5e3b2a4d58abd7e

            SHA512

            e29ea10ada98c71a18273b04f44f385b120d4e8473e441ce5748cfa44a23648814f2656f429b85440157988c88de776c6ac008dc38bf09cbb746c230a46c69fe

          • C:\Users\Admin\AppData\Local\Temp\nso8F42.tmp\nsExec.dll

            Filesize

            6KB

            MD5

            acc2b699edfea5bf5aae45aba3a41e96

            SHA1

            d2accf4d494e43ceb2cff69abe4dd17147d29cc2

            SHA256

            168a974eaa3f588d759db3f47c1a9fdc3494ba1fa1a73a84e5e3b2a4d58abd7e

            SHA512

            e29ea10ada98c71a18273b04f44f385b120d4e8473e441ce5748cfa44a23648814f2656f429b85440157988c88de776c6ac008dc38bf09cbb746c230a46c69fe

          • C:\Users\Admin\AppData\Local\Temp\nso8F42.tmp\nsExec.dll

            Filesize

            6KB

            MD5

            acc2b699edfea5bf5aae45aba3a41e96

            SHA1

            d2accf4d494e43ceb2cff69abe4dd17147d29cc2

            SHA256

            168a974eaa3f588d759db3f47c1a9fdc3494ba1fa1a73a84e5e3b2a4d58abd7e

            SHA512

            e29ea10ada98c71a18273b04f44f385b120d4e8473e441ce5748cfa44a23648814f2656f429b85440157988c88de776c6ac008dc38bf09cbb746c230a46c69fe

          • C:\Users\Admin\AppData\Local\Temp\nso8F42.tmp\nsExec.dll

            Filesize

            6KB

            MD5

            acc2b699edfea5bf5aae45aba3a41e96

            SHA1

            d2accf4d494e43ceb2cff69abe4dd17147d29cc2

            SHA256

            168a974eaa3f588d759db3f47c1a9fdc3494ba1fa1a73a84e5e3b2a4d58abd7e

            SHA512

            e29ea10ada98c71a18273b04f44f385b120d4e8473e441ce5748cfa44a23648814f2656f429b85440157988c88de776c6ac008dc38bf09cbb746c230a46c69fe

          • C:\Users\Admin\AppData\Local\Temp\nso8F42.tmp\nsExec.dll

            Filesize

            6KB

            MD5

            acc2b699edfea5bf5aae45aba3a41e96

            SHA1

            d2accf4d494e43ceb2cff69abe4dd17147d29cc2

            SHA256

            168a974eaa3f588d759db3f47c1a9fdc3494ba1fa1a73a84e5e3b2a4d58abd7e

            SHA512

            e29ea10ada98c71a18273b04f44f385b120d4e8473e441ce5748cfa44a23648814f2656f429b85440157988c88de776c6ac008dc38bf09cbb746c230a46c69fe

          • C:\Users\Admin\AppData\Local\Temp\nso8F42.tmp\nsExec.dll

            Filesize

            6KB

            MD5

            acc2b699edfea5bf5aae45aba3a41e96

            SHA1

            d2accf4d494e43ceb2cff69abe4dd17147d29cc2

            SHA256

            168a974eaa3f588d759db3f47c1a9fdc3494ba1fa1a73a84e5e3b2a4d58abd7e

            SHA512

            e29ea10ada98c71a18273b04f44f385b120d4e8473e441ce5748cfa44a23648814f2656f429b85440157988c88de776c6ac008dc38bf09cbb746c230a46c69fe

          • C:\Windows\SysWOW64\hfnapi.dll

            Filesize

            106KB

            MD5

            10acc9c6d2bcc7e7adcfde8b4c6ec40b

            SHA1

            11dd6447b4e73a6c9fdf1c97d11233ae76a69efb

            SHA256

            b29056ee1bdbf78c80292322ef519742d896eff08aa635f961c83539944f8eec

            SHA512

            4370264836758d7acb52d7a5221de5ea56234432acd073fd0534c25924b80884c5d0cb735d7f6728996fbde8551fe3b459af774fd7737a99fdc299a7f098c4a6

          • C:\Windows\SysWOW64\hfnapi.dll

            Filesize

            106KB

            MD5

            10acc9c6d2bcc7e7adcfde8b4c6ec40b

            SHA1

            11dd6447b4e73a6c9fdf1c97d11233ae76a69efb

            SHA256

            b29056ee1bdbf78c80292322ef519742d896eff08aa635f961c83539944f8eec

            SHA512

            4370264836758d7acb52d7a5221de5ea56234432acd073fd0534c25924b80884c5d0cb735d7f6728996fbde8551fe3b459af774fd7737a99fdc299a7f098c4a6

          • C:\Windows\SysWOW64\hfnapi.dll

            Filesize

            106KB

            MD5

            10acc9c6d2bcc7e7adcfde8b4c6ec40b

            SHA1

            11dd6447b4e73a6c9fdf1c97d11233ae76a69efb

            SHA256

            b29056ee1bdbf78c80292322ef519742d896eff08aa635f961c83539944f8eec

            SHA512

            4370264836758d7acb52d7a5221de5ea56234432acd073fd0534c25924b80884c5d0cb735d7f6728996fbde8551fe3b459af774fd7737a99fdc299a7f098c4a6

          • C:\Windows\SysWOW64\hfnapi.dll

            Filesize

            106KB

            MD5

            10acc9c6d2bcc7e7adcfde8b4c6ec40b

            SHA1

            11dd6447b4e73a6c9fdf1c97d11233ae76a69efb

            SHA256

            b29056ee1bdbf78c80292322ef519742d896eff08aa635f961c83539944f8eec

            SHA512

            4370264836758d7acb52d7a5221de5ea56234432acd073fd0534c25924b80884c5d0cb735d7f6728996fbde8551fe3b459af774fd7737a99fdc299a7f098c4a6

          • C:\Windows\SysWOW64\hfpapi.dll

            Filesize

            241KB

            MD5

            6863203d72e17631052fc8857879e72c

            SHA1

            ed5ce49998215f73ad787177dc99431ebfe51797

            SHA256

            ddc45538e4e6e08e254aa4d9360595438f8cb90451bb2fb26b20dd261ed73170

            SHA512

            78d5a5928205d1af3ff531075c6809171f2d153ce2552d4da26c6d6d40a1ed592b4c1fa48546bca5651390927c4e326533df3ecd1b1ad0fcb164d4ad58b770b7

          • C:\Windows\SysWOW64\hfpapi.dll

            Filesize

            241KB

            MD5

            6863203d72e17631052fc8857879e72c

            SHA1

            ed5ce49998215f73ad787177dc99431ebfe51797

            SHA256

            ddc45538e4e6e08e254aa4d9360595438f8cb90451bb2fb26b20dd261ed73170

            SHA512

            78d5a5928205d1af3ff531075c6809171f2d153ce2552d4da26c6d6d40a1ed592b4c1fa48546bca5651390927c4e326533df3ecd1b1ad0fcb164d4ad58b770b7

          • C:\Windows\SysWOW64\hfpapi.dll

            Filesize

            241KB

            MD5

            6863203d72e17631052fc8857879e72c

            SHA1

            ed5ce49998215f73ad787177dc99431ebfe51797

            SHA256

            ddc45538e4e6e08e254aa4d9360595438f8cb90451bb2fb26b20dd261ed73170

            SHA512

            78d5a5928205d1af3ff531075c6809171f2d153ce2552d4da26c6d6d40a1ed592b4c1fa48546bca5651390927c4e326533df3ecd1b1ad0fcb164d4ad58b770b7

          • C:\Windows\SysWOW64\installd.exe

            Filesize

            108KB

            MD5

            24354e4ef482658f6b621b2ccb0497bb

            SHA1

            9d369c163b4e1dcd0026d5ab98e2ec6bd8663256

            SHA256

            909c9e0e7cb03128e9db9911242c2dee5e3c5ed43f6e4d385630f03d3dbf7718

            SHA512

            e9029b4dc04bc419992a901488692e2d70bea85b82e62522e4ba7bde1305e9949423f89dc9a525a7048fbf2c3b18f1f3a118664c85260434de158c08abfabbff

          • C:\Windows\SysWOW64\installd.exe

            Filesize

            108KB

            MD5

            24354e4ef482658f6b621b2ccb0497bb

            SHA1

            9d369c163b4e1dcd0026d5ab98e2ec6bd8663256

            SHA256

            909c9e0e7cb03128e9db9911242c2dee5e3c5ed43f6e4d385630f03d3dbf7718

            SHA512

            e9029b4dc04bc419992a901488692e2d70bea85b82e62522e4ba7bde1305e9949423f89dc9a525a7048fbf2c3b18f1f3a118664c85260434de158c08abfabbff

          • C:\Windows\SysWOW64\nethtsrv.exe

            Filesize

            176KB

            MD5

            7143874ec8a4740c25442bf9cbd5ac0b

            SHA1

            c7d3e1e323dd242ee4c73985f79b4d795c52ea4a

            SHA256

            1c458ada91bc42a7bf2cf700999f390ba61c0b8a2a399d20f93209539caa3a65

            SHA512

            902ad7fd41a968b2b85f865edf1f8e428e2276a969b0e1c34e0c042c3a7410b0c3ac51716f009fe3341857397178edc37e621342d5ef767390066140143099c4

          • C:\Windows\SysWOW64\nethtsrv.exe

            Filesize

            176KB

            MD5

            7143874ec8a4740c25442bf9cbd5ac0b

            SHA1

            c7d3e1e323dd242ee4c73985f79b4d795c52ea4a

            SHA256

            1c458ada91bc42a7bf2cf700999f390ba61c0b8a2a399d20f93209539caa3a65

            SHA512

            902ad7fd41a968b2b85f865edf1f8e428e2276a969b0e1c34e0c042c3a7410b0c3ac51716f009fe3341857397178edc37e621342d5ef767390066140143099c4

          • C:\Windows\SysWOW64\nethtsrv.exe

            Filesize

            176KB

            MD5

            7143874ec8a4740c25442bf9cbd5ac0b

            SHA1

            c7d3e1e323dd242ee4c73985f79b4d795c52ea4a

            SHA256

            1c458ada91bc42a7bf2cf700999f390ba61c0b8a2a399d20f93209539caa3a65

            SHA512

            902ad7fd41a968b2b85f865edf1f8e428e2276a969b0e1c34e0c042c3a7410b0c3ac51716f009fe3341857397178edc37e621342d5ef767390066140143099c4

          • C:\Windows\SysWOW64\netupdsrv.exe

            Filesize

            158KB

            MD5

            3c54e3eb0508b13c443c53094a50174b

            SHA1

            11f0ce475986436685a2e9bcbdcca99c19956ddd

            SHA256

            b73abe4194c8ab2d86e581f7b684268e0c91244c76916cc176936b0cb734c5e3

            SHA512

            f05d856aa16f2faefefcfb7794d3f84a4d192a8847ed09a48f197aff15a06d3293982d14da86a0add8c4e7f22bf50d76b7f2472f739cadb705af03dc6bea3042

          • C:\Windows\SysWOW64\netupdsrv.exe

            Filesize

            158KB

            MD5

            3c54e3eb0508b13c443c53094a50174b

            SHA1

            11f0ce475986436685a2e9bcbdcca99c19956ddd

            SHA256

            b73abe4194c8ab2d86e581f7b684268e0c91244c76916cc176936b0cb734c5e3

            SHA512

            f05d856aa16f2faefefcfb7794d3f84a4d192a8847ed09a48f197aff15a06d3293982d14da86a0add8c4e7f22bf50d76b7f2472f739cadb705af03dc6bea3042

          • C:\Windows\SysWOW64\netupdsrv.exe

            Filesize

            158KB

            MD5

            3c54e3eb0508b13c443c53094a50174b

            SHA1

            11f0ce475986436685a2e9bcbdcca99c19956ddd

            SHA256

            b73abe4194c8ab2d86e581f7b684268e0c91244c76916cc176936b0cb734c5e3

            SHA512

            f05d856aa16f2faefefcfb7794d3f84a4d192a8847ed09a48f197aff15a06d3293982d14da86a0add8c4e7f22bf50d76b7f2472f739cadb705af03dc6bea3042

          • memory/888-147-0x0000000000000000-mapping.dmp

          • memory/1000-140-0x0000000000000000-mapping.dmp

          • memory/1044-159-0x0000000000000000-mapping.dmp

          • memory/2212-158-0x0000000000000000-mapping.dmp

          • memory/3224-141-0x0000000000000000-mapping.dmp

          • memory/3392-136-0x0000000000000000-mapping.dmp

          • memory/3984-166-0x0000000000000000-mapping.dmp

          • memory/4180-153-0x0000000000000000-mapping.dmp

          • memory/4296-132-0x0000000000360000-0x00000000007BE000-memory.dmp

            Filesize

            4.4MB

          • memory/4296-168-0x0000000000360000-0x00000000007BE000-memory.dmp

            Filesize

            4.4MB

          • memory/4436-165-0x0000000000000000-mapping.dmp

          • memory/4596-137-0x0000000000000000-mapping.dmp

          • memory/4872-142-0x0000000000000000-mapping.dmp