Analysis

  • max time kernel
    168s
  • max time network
    192s
  • 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 10:59

General

  • Target

    1e672ed1e67c9da3c7e1fd572f001ced1b5841731690ea096b55faa5226008e3.exe

  • Size

    446KB

  • MD5

    4bd772b458efdcb8ce002ca9dda11e38

  • SHA1

    4ce6ab975f9e4f354ef28321a540ba7372cc36af

  • SHA256

    1e672ed1e67c9da3c7e1fd572f001ced1b5841731690ea096b55faa5226008e3

  • SHA512

    ed5ea07c50da6ed91d0977a633ca7499e78d0273aa7202bef2b233739ee9e4ee22aadda49fccea9fe1f6c895281755a4cdba0705b8eb8b9cb378e05f5568eda6

  • SSDEEP

    12288:qap+ZKypbc3+drs3Ajb2XprgNEIm7HFtd:qapOZdrIAGZrgyhFtd

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\1e672ed1e67c9da3c7e1fd572f001ced1b5841731690ea096b55faa5226008e3.exe
    "C:\Users\Admin\AppData\Local\Temp\1e672ed1e67c9da3c7e1fd572f001ced1b5841731690ea096b55faa5226008e3.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:224
    • C:\Windows\SysWOW64\net.exe
      net stop nethttpservice
      2⤵
      • Suspicious use of WriteProcessMemory
      PID:1864
      • C:\Windows\SysWOW64\net1.exe
        C:\Windows\system32\net1 stop nethttpservice
        3⤵
          PID:5108
      • C:\Windows\SysWOW64\net.exe
        net stop serviceupdater
        2⤵
        • Suspicious use of WriteProcessMemory
        PID:4140
        • C:\Windows\SysWOW64\net1.exe
          C:\Windows\system32\net1 stop serviceupdater
          3⤵
            PID:4632
        • C:\Windows\SysWOW64\installd.exe
          "C:\Windows\system32\installd.exe" nethfdrv
          2⤵
          • Executes dropped EXE
          • Loads dropped DLL
          PID:2092
        • C:\Windows\SysWOW64\nethtsrv.exe
          "C:\Windows\system32\nethtsrv.exe" -nfdi
          2⤵
          • Executes dropped EXE
          • Loads dropped DLL
          PID:1824
        • C:\Windows\SysWOW64\netupdsrv.exe
          "C:\Windows\system32\netupdsrv.exe" -nfdi
          2⤵
          • Executes dropped EXE
          PID:2056
        • C:\Windows\SysWOW64\net.exe
          net start nethttpservice
          2⤵
          • Suspicious use of WriteProcessMemory
          PID:4120
          • C:\Windows\SysWOW64\net1.exe
            C:\Windows\system32\net1 start nethttpservice
            3⤵
              PID:1296
          • C:\Windows\SysWOW64\net.exe
            net start serviceupdater
            2⤵
            • Suspicious use of WriteProcessMemory
            PID:5112
            • C:\Windows\SysWOW64\net1.exe
              C:\Windows\system32\net1 start serviceupdater
              3⤵
                PID:2796
          • 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:4568
          • C:\Windows\SysWOW64\netupdsrv.exe
            C:\Windows\SysWOW64\netupdsrv.exe
            1⤵
            • Executes dropped EXE
            PID:4612

          Network

          MITRE ATT&CK Enterprise v6

          Replay Monitor

          Loading Replay Monitor...

          Downloads

          • C:\Users\Admin\AppData\Local\Temp\nsu1F90.tmp\System.dll

            Filesize

            11KB

            MD5

            c17103ae9072a06da581dec998343fc1

            SHA1

            b72148c6bdfaada8b8c3f950e610ee7cf1da1f8d

            SHA256

            dc58d8ad81cacb0c1ed72e33bff8f23ea40b5252b5bb55d393a0903e6819ae2f

            SHA512

            d32a71aaef18e993f28096d536e41c4d016850721b31171513ce28bbd805a54fd290b7c3e9d935f72e676a1acfb4f0dcc89d95040a0dd29f2b6975855c18986f

          • C:\Users\Admin\AppData\Local\Temp\nsu1F90.tmp\nsExec.dll

            Filesize

            6KB

            MD5

            acc2b699edfea5bf5aae45aba3a41e96

            SHA1

            d2accf4d494e43ceb2cff69abe4dd17147d29cc2

            SHA256

            168a974eaa3f588d759db3f47c1a9fdc3494ba1fa1a73a84e5e3b2a4d58abd7e

            SHA512

            e29ea10ada98c71a18273b04f44f385b120d4e8473e441ce5748cfa44a23648814f2656f429b85440157988c88de776c6ac008dc38bf09cbb746c230a46c69fe

          • C:\Users\Admin\AppData\Local\Temp\nsu1F90.tmp\nsExec.dll

            Filesize

            6KB

            MD5

            acc2b699edfea5bf5aae45aba3a41e96

            SHA1

            d2accf4d494e43ceb2cff69abe4dd17147d29cc2

            SHA256

            168a974eaa3f588d759db3f47c1a9fdc3494ba1fa1a73a84e5e3b2a4d58abd7e

            SHA512

            e29ea10ada98c71a18273b04f44f385b120d4e8473e441ce5748cfa44a23648814f2656f429b85440157988c88de776c6ac008dc38bf09cbb746c230a46c69fe

          • C:\Users\Admin\AppData\Local\Temp\nsu1F90.tmp\nsExec.dll

            Filesize

            6KB

            MD5

            acc2b699edfea5bf5aae45aba3a41e96

            SHA1

            d2accf4d494e43ceb2cff69abe4dd17147d29cc2

            SHA256

            168a974eaa3f588d759db3f47c1a9fdc3494ba1fa1a73a84e5e3b2a4d58abd7e

            SHA512

            e29ea10ada98c71a18273b04f44f385b120d4e8473e441ce5748cfa44a23648814f2656f429b85440157988c88de776c6ac008dc38bf09cbb746c230a46c69fe

          • C:\Users\Admin\AppData\Local\Temp\nsu1F90.tmp\nsExec.dll

            Filesize

            6KB

            MD5

            acc2b699edfea5bf5aae45aba3a41e96

            SHA1

            d2accf4d494e43ceb2cff69abe4dd17147d29cc2

            SHA256

            168a974eaa3f588d759db3f47c1a9fdc3494ba1fa1a73a84e5e3b2a4d58abd7e

            SHA512

            e29ea10ada98c71a18273b04f44f385b120d4e8473e441ce5748cfa44a23648814f2656f429b85440157988c88de776c6ac008dc38bf09cbb746c230a46c69fe

          • C:\Users\Admin\AppData\Local\Temp\nsu1F90.tmp\nsExec.dll

            Filesize

            6KB

            MD5

            acc2b699edfea5bf5aae45aba3a41e96

            SHA1

            d2accf4d494e43ceb2cff69abe4dd17147d29cc2

            SHA256

            168a974eaa3f588d759db3f47c1a9fdc3494ba1fa1a73a84e5e3b2a4d58abd7e

            SHA512

            e29ea10ada98c71a18273b04f44f385b120d4e8473e441ce5748cfa44a23648814f2656f429b85440157988c88de776c6ac008dc38bf09cbb746c230a46c69fe

          • C:\Users\Admin\AppData\Local\Temp\nsu1F90.tmp\nsExec.dll

            Filesize

            6KB

            MD5

            acc2b699edfea5bf5aae45aba3a41e96

            SHA1

            d2accf4d494e43ceb2cff69abe4dd17147d29cc2

            SHA256

            168a974eaa3f588d759db3f47c1a9fdc3494ba1fa1a73a84e5e3b2a4d58abd7e

            SHA512

            e29ea10ada98c71a18273b04f44f385b120d4e8473e441ce5748cfa44a23648814f2656f429b85440157988c88de776c6ac008dc38bf09cbb746c230a46c69fe

          • C:\Users\Admin\AppData\Local\Temp\nsu1F90.tmp\nsExec.dll

            Filesize

            6KB

            MD5

            acc2b699edfea5bf5aae45aba3a41e96

            SHA1

            d2accf4d494e43ceb2cff69abe4dd17147d29cc2

            SHA256

            168a974eaa3f588d759db3f47c1a9fdc3494ba1fa1a73a84e5e3b2a4d58abd7e

            SHA512

            e29ea10ada98c71a18273b04f44f385b120d4e8473e441ce5748cfa44a23648814f2656f429b85440157988c88de776c6ac008dc38bf09cbb746c230a46c69fe

          • C:\Users\Admin\AppData\Local\Temp\nsu1F90.tmp\nsExec.dll

            Filesize

            6KB

            MD5

            acc2b699edfea5bf5aae45aba3a41e96

            SHA1

            d2accf4d494e43ceb2cff69abe4dd17147d29cc2

            SHA256

            168a974eaa3f588d759db3f47c1a9fdc3494ba1fa1a73a84e5e3b2a4d58abd7e

            SHA512

            e29ea10ada98c71a18273b04f44f385b120d4e8473e441ce5748cfa44a23648814f2656f429b85440157988c88de776c6ac008dc38bf09cbb746c230a46c69fe

          • C:\Windows\SysWOW64\hfnapi.dll

            Filesize

            106KB

            MD5

            68b7199111e1e3eb5579c34d5c5db8b2

            SHA1

            6bcaba3fb1292b1bef46e530a1e12c728272e639

            SHA256

            ed866d25b00ccb64cbcf2f7c3452671ecec8c53e0f9a0d944a991192e83493fb

            SHA512

            1884eb1db3a9a1193b101486218498cb15a665d45585e10bfb74f6568257b7c6b697bf231821e7b61ec53054a68bdba0ce5aa555531ffae20fd355a1b901706f

          • C:\Windows\SysWOW64\hfnapi.dll

            Filesize

            106KB

            MD5

            68b7199111e1e3eb5579c34d5c5db8b2

            SHA1

            6bcaba3fb1292b1bef46e530a1e12c728272e639

            SHA256

            ed866d25b00ccb64cbcf2f7c3452671ecec8c53e0f9a0d944a991192e83493fb

            SHA512

            1884eb1db3a9a1193b101486218498cb15a665d45585e10bfb74f6568257b7c6b697bf231821e7b61ec53054a68bdba0ce5aa555531ffae20fd355a1b901706f

          • C:\Windows\SysWOW64\hfnapi.dll

            Filesize

            106KB

            MD5

            68b7199111e1e3eb5579c34d5c5db8b2

            SHA1

            6bcaba3fb1292b1bef46e530a1e12c728272e639

            SHA256

            ed866d25b00ccb64cbcf2f7c3452671ecec8c53e0f9a0d944a991192e83493fb

            SHA512

            1884eb1db3a9a1193b101486218498cb15a665d45585e10bfb74f6568257b7c6b697bf231821e7b61ec53054a68bdba0ce5aa555531ffae20fd355a1b901706f

          • C:\Windows\SysWOW64\hfnapi.dll

            Filesize

            106KB

            MD5

            68b7199111e1e3eb5579c34d5c5db8b2

            SHA1

            6bcaba3fb1292b1bef46e530a1e12c728272e639

            SHA256

            ed866d25b00ccb64cbcf2f7c3452671ecec8c53e0f9a0d944a991192e83493fb

            SHA512

            1884eb1db3a9a1193b101486218498cb15a665d45585e10bfb74f6568257b7c6b697bf231821e7b61ec53054a68bdba0ce5aa555531ffae20fd355a1b901706f

          • C:\Windows\SysWOW64\hfpapi.dll

            Filesize

            241KB

            MD5

            0f8f368268c0da80639ff8c0ba8e9cad

            SHA1

            4ee5919b0f5d8ea560d11195999c9c56dcf574eb

            SHA256

            f04aca063d3887ce69f855023a30aa980d1f7643b3e02995e6d07f7881043ee7

            SHA512

            b328312bd5a50b175b7c11c753e8e468ee951a3a097213a1552a83af67330c0febd611a66a770c6418ae53b263b9cd646bd700061b2e2b9142ed8d69b539ba80

          • C:\Windows\SysWOW64\hfpapi.dll

            Filesize

            241KB

            MD5

            0f8f368268c0da80639ff8c0ba8e9cad

            SHA1

            4ee5919b0f5d8ea560d11195999c9c56dcf574eb

            SHA256

            f04aca063d3887ce69f855023a30aa980d1f7643b3e02995e6d07f7881043ee7

            SHA512

            b328312bd5a50b175b7c11c753e8e468ee951a3a097213a1552a83af67330c0febd611a66a770c6418ae53b263b9cd646bd700061b2e2b9142ed8d69b539ba80

          • C:\Windows\SysWOW64\hfpapi.dll

            Filesize

            241KB

            MD5

            0f8f368268c0da80639ff8c0ba8e9cad

            SHA1

            4ee5919b0f5d8ea560d11195999c9c56dcf574eb

            SHA256

            f04aca063d3887ce69f855023a30aa980d1f7643b3e02995e6d07f7881043ee7

            SHA512

            b328312bd5a50b175b7c11c753e8e468ee951a3a097213a1552a83af67330c0febd611a66a770c6418ae53b263b9cd646bd700061b2e2b9142ed8d69b539ba80

          • C:\Windows\SysWOW64\installd.exe

            Filesize

            108KB

            MD5

            1c145ecfa109683129bb9bd485f0180c

            SHA1

            9925e24e0f2e26438cee06e94f9cae0be1422ce3

            SHA256

            621d272855bb18a8ccd54107a716ab9fa2ca507eed2bdd1d132e882c9461065e

            SHA512

            ef6efff7c56132a6c5d608c1aa8d4b1ffeb9ba1b9354385ec0ec74e64b64e1bd09f14845f4484a186bb33f1acc02708a72d5af9854213f2ab3b0d37695a68f3c

          • C:\Windows\SysWOW64\installd.exe

            Filesize

            108KB

            MD5

            1c145ecfa109683129bb9bd485f0180c

            SHA1

            9925e24e0f2e26438cee06e94f9cae0be1422ce3

            SHA256

            621d272855bb18a8ccd54107a716ab9fa2ca507eed2bdd1d132e882c9461065e

            SHA512

            ef6efff7c56132a6c5d608c1aa8d4b1ffeb9ba1b9354385ec0ec74e64b64e1bd09f14845f4484a186bb33f1acc02708a72d5af9854213f2ab3b0d37695a68f3c

          • C:\Windows\SysWOW64\nethtsrv.exe

            Filesize

            176KB

            MD5

            d66d28dd589f70e4603df3b708d29bb7

            SHA1

            df8af98cc89843bdd34afbf81661c85fdf0042e7

            SHA256

            3eceb8e5eee4e8bb1fc11eb82e26adbf5d11b49b031bafde86fcd97d1fd553e5

            SHA512

            2c6e1ebf732bdfd21bbfccef8c5866e8a8e8d6c080f54e432f022e138b94b1cbe22e0e1f5669dbdc420cf5b028337d5e98284ea44804035b3a800bfcff33b9b1

          • C:\Windows\SysWOW64\nethtsrv.exe

            Filesize

            176KB

            MD5

            d66d28dd589f70e4603df3b708d29bb7

            SHA1

            df8af98cc89843bdd34afbf81661c85fdf0042e7

            SHA256

            3eceb8e5eee4e8bb1fc11eb82e26adbf5d11b49b031bafde86fcd97d1fd553e5

            SHA512

            2c6e1ebf732bdfd21bbfccef8c5866e8a8e8d6c080f54e432f022e138b94b1cbe22e0e1f5669dbdc420cf5b028337d5e98284ea44804035b3a800bfcff33b9b1

          • C:\Windows\SysWOW64\nethtsrv.exe

            Filesize

            176KB

            MD5

            d66d28dd589f70e4603df3b708d29bb7

            SHA1

            df8af98cc89843bdd34afbf81661c85fdf0042e7

            SHA256

            3eceb8e5eee4e8bb1fc11eb82e26adbf5d11b49b031bafde86fcd97d1fd553e5

            SHA512

            2c6e1ebf732bdfd21bbfccef8c5866e8a8e8d6c080f54e432f022e138b94b1cbe22e0e1f5669dbdc420cf5b028337d5e98284ea44804035b3a800bfcff33b9b1

          • C:\Windows\SysWOW64\netupdsrv.exe

            Filesize

            159KB

            MD5

            b81d2f47c5770e5a5561539fa1012104

            SHA1

            caf208a386ed4b1e56b5270b0eac0f5a44d97e94

            SHA256

            2d7609b207cd57115a155d612039b9346c2fab800de30393ae9f418a8afffff0

            SHA512

            3e99ef1278a4df381476be6fe2176b963790fb6b5d14f2b6514da6733a1dd79fb477da03b837ca20d82ab164d5f7cd0f2c683760175397e6714ba0bfd58c2ad1

          • C:\Windows\SysWOW64\netupdsrv.exe

            Filesize

            159KB

            MD5

            b81d2f47c5770e5a5561539fa1012104

            SHA1

            caf208a386ed4b1e56b5270b0eac0f5a44d97e94

            SHA256

            2d7609b207cd57115a155d612039b9346c2fab800de30393ae9f418a8afffff0

            SHA512

            3e99ef1278a4df381476be6fe2176b963790fb6b5d14f2b6514da6733a1dd79fb477da03b837ca20d82ab164d5f7cd0f2c683760175397e6714ba0bfd58c2ad1

          • C:\Windows\SysWOW64\netupdsrv.exe

            Filesize

            159KB

            MD5

            b81d2f47c5770e5a5561539fa1012104

            SHA1

            caf208a386ed4b1e56b5270b0eac0f5a44d97e94

            SHA256

            2d7609b207cd57115a155d612039b9346c2fab800de30393ae9f418a8afffff0

            SHA512

            3e99ef1278a4df381476be6fe2176b963790fb6b5d14f2b6514da6733a1dd79fb477da03b837ca20d82ab164d5f7cd0f2c683760175397e6714ba0bfd58c2ad1

          • memory/1296-158-0x0000000000000000-mapping.dmp

          • memory/1824-146-0x0000000000000000-mapping.dmp

          • memory/1864-135-0x0000000000000000-mapping.dmp

          • memory/2056-152-0x0000000000000000-mapping.dmp

          • memory/2092-141-0x0000000000000000-mapping.dmp

          • memory/2796-165-0x0000000000000000-mapping.dmp

          • memory/4120-157-0x0000000000000000-mapping.dmp

          • memory/4140-139-0x0000000000000000-mapping.dmp

          • memory/4632-140-0x0000000000000000-mapping.dmp

          • memory/5108-136-0x0000000000000000-mapping.dmp

          • memory/5112-164-0x0000000000000000-mapping.dmp