Analysis

  • max time kernel
    151s
  • max time network
    193s
  • 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

    155afd5bf2a7f3ad8fc2bca81776ae487922fee8f4738f34bfd285174ba45166.exe

  • Size

    445KB

  • MD5

    dabf29d8353815a08de2412f8bc52e5e

  • SHA1

    97587ffc6e9b2521ba1a46190dcd68f65445cd96

  • SHA256

    155afd5bf2a7f3ad8fc2bca81776ae487922fee8f4738f34bfd285174ba45166

  • SHA512

    1113e63e94aa369f172c9c7ec43d1f08c2e5622d6c39fbf5cd992e5b68e64f93ab1bca4efd2bdc92b1a9a5df7ca890b2ffe0113924d88ba7619cf9e3c7c88393

  • SSDEEP

    12288:JtFNuaquj3GMawd0/AxpsppdwhhyWysT+HXv070LOl:JtFNLLawdDU1Sm07Iw

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\155afd5bf2a7f3ad8fc2bca81776ae487922fee8f4738f34bfd285174ba45166.exe
    "C:\Users\Admin\AppData\Local\Temp\155afd5bf2a7f3ad8fc2bca81776ae487922fee8f4738f34bfd285174ba45166.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:1520
    • C:\Windows\SysWOW64\net.exe
      net stop nethttpservice
      2⤵
      • Suspicious use of WriteProcessMemory
      PID:4204
      • C:\Windows\SysWOW64\net1.exe
        C:\Windows\system32\net1 stop nethttpservice
        3⤵
          PID:1020
      • C:\Windows\SysWOW64\net.exe
        net stop serviceupdater
        2⤵
        • Suspicious use of WriteProcessMemory
        PID:2772
        • C:\Windows\SysWOW64\net1.exe
          C:\Windows\system32\net1 stop serviceupdater
          3⤵
            PID:4944
        • C:\Windows\SysWOW64\installd.exe
          "C:\Windows\system32\installd.exe" nethfdrv
          2⤵
          • Executes dropped EXE
          • Loads dropped DLL
          PID:2228
        • C:\Windows\SysWOW64\nethtsrv.exe
          "C:\Windows\system32\nethtsrv.exe" -nfdi
          2⤵
          • Executes dropped EXE
          • Loads dropped DLL
          PID:2308
        • C:\Windows\SysWOW64\netupdsrv.exe
          "C:\Windows\system32\netupdsrv.exe" -nfdi
          2⤵
          • Executes dropped EXE
          PID:4456
        • C:\Windows\SysWOW64\net.exe
          net start nethttpservice
          2⤵
          • Suspicious use of WriteProcessMemory
          PID:2160
          • C:\Windows\SysWOW64\net1.exe
            C:\Windows\system32\net1 start nethttpservice
            3⤵
              PID:3228
          • C:\Windows\SysWOW64\net.exe
            net start serviceupdater
            2⤵
            • Suspicious use of WriteProcessMemory
            PID:4792
            • C:\Windows\SysWOW64\net1.exe
              C:\Windows\system32\net1 start serviceupdater
              3⤵
                PID:3384
          • 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:2732
          • C:\Windows\SysWOW64\netupdsrv.exe
            C:\Windows\SysWOW64\netupdsrv.exe
            1⤵
            • Executes dropped EXE
            PID:2392

          Network

          MITRE ATT&CK Matrix ATT&CK v6

          Discovery

          Query Registry

          1
          T1012

          System Information Discovery

          1
          T1082

          Replay Monitor

          Loading Replay Monitor...

          Downloads

          • C:\Users\Admin\AppData\Local\Temp\nsz1E29.tmp\System.dll
            Filesize

            11KB

            MD5

            c17103ae9072a06da581dec998343fc1

            SHA1

            b72148c6bdfaada8b8c3f950e610ee7cf1da1f8d

            SHA256

            dc58d8ad81cacb0c1ed72e33bff8f23ea40b5252b5bb55d393a0903e6819ae2f

            SHA512

            d32a71aaef18e993f28096d536e41c4d016850721b31171513ce28bbd805a54fd290b7c3e9d935f72e676a1acfb4f0dcc89d95040a0dd29f2b6975855c18986f

          • C:\Users\Admin\AppData\Local\Temp\nsz1E29.tmp\nsExec.dll
            Filesize

            6KB

            MD5

            acc2b699edfea5bf5aae45aba3a41e96

            SHA1

            d2accf4d494e43ceb2cff69abe4dd17147d29cc2

            SHA256

            168a974eaa3f588d759db3f47c1a9fdc3494ba1fa1a73a84e5e3b2a4d58abd7e

            SHA512

            e29ea10ada98c71a18273b04f44f385b120d4e8473e441ce5748cfa44a23648814f2656f429b85440157988c88de776c6ac008dc38bf09cbb746c230a46c69fe

          • C:\Users\Admin\AppData\Local\Temp\nsz1E29.tmp\nsExec.dll
            Filesize

            6KB

            MD5

            acc2b699edfea5bf5aae45aba3a41e96

            SHA1

            d2accf4d494e43ceb2cff69abe4dd17147d29cc2

            SHA256

            168a974eaa3f588d759db3f47c1a9fdc3494ba1fa1a73a84e5e3b2a4d58abd7e

            SHA512

            e29ea10ada98c71a18273b04f44f385b120d4e8473e441ce5748cfa44a23648814f2656f429b85440157988c88de776c6ac008dc38bf09cbb746c230a46c69fe

          • C:\Users\Admin\AppData\Local\Temp\nsz1E29.tmp\nsExec.dll
            Filesize

            6KB

            MD5

            acc2b699edfea5bf5aae45aba3a41e96

            SHA1

            d2accf4d494e43ceb2cff69abe4dd17147d29cc2

            SHA256

            168a974eaa3f588d759db3f47c1a9fdc3494ba1fa1a73a84e5e3b2a4d58abd7e

            SHA512

            e29ea10ada98c71a18273b04f44f385b120d4e8473e441ce5748cfa44a23648814f2656f429b85440157988c88de776c6ac008dc38bf09cbb746c230a46c69fe

          • C:\Users\Admin\AppData\Local\Temp\nsz1E29.tmp\nsExec.dll
            Filesize

            6KB

            MD5

            acc2b699edfea5bf5aae45aba3a41e96

            SHA1

            d2accf4d494e43ceb2cff69abe4dd17147d29cc2

            SHA256

            168a974eaa3f588d759db3f47c1a9fdc3494ba1fa1a73a84e5e3b2a4d58abd7e

            SHA512

            e29ea10ada98c71a18273b04f44f385b120d4e8473e441ce5748cfa44a23648814f2656f429b85440157988c88de776c6ac008dc38bf09cbb746c230a46c69fe

          • C:\Users\Admin\AppData\Local\Temp\nsz1E29.tmp\nsExec.dll
            Filesize

            6KB

            MD5

            acc2b699edfea5bf5aae45aba3a41e96

            SHA1

            d2accf4d494e43ceb2cff69abe4dd17147d29cc2

            SHA256

            168a974eaa3f588d759db3f47c1a9fdc3494ba1fa1a73a84e5e3b2a4d58abd7e

            SHA512

            e29ea10ada98c71a18273b04f44f385b120d4e8473e441ce5748cfa44a23648814f2656f429b85440157988c88de776c6ac008dc38bf09cbb746c230a46c69fe

          • C:\Users\Admin\AppData\Local\Temp\nsz1E29.tmp\nsExec.dll
            Filesize

            6KB

            MD5

            acc2b699edfea5bf5aae45aba3a41e96

            SHA1

            d2accf4d494e43ceb2cff69abe4dd17147d29cc2

            SHA256

            168a974eaa3f588d759db3f47c1a9fdc3494ba1fa1a73a84e5e3b2a4d58abd7e

            SHA512

            e29ea10ada98c71a18273b04f44f385b120d4e8473e441ce5748cfa44a23648814f2656f429b85440157988c88de776c6ac008dc38bf09cbb746c230a46c69fe

          • C:\Users\Admin\AppData\Local\Temp\nsz1E29.tmp\nsExec.dll
            Filesize

            6KB

            MD5

            acc2b699edfea5bf5aae45aba3a41e96

            SHA1

            d2accf4d494e43ceb2cff69abe4dd17147d29cc2

            SHA256

            168a974eaa3f588d759db3f47c1a9fdc3494ba1fa1a73a84e5e3b2a4d58abd7e

            SHA512

            e29ea10ada98c71a18273b04f44f385b120d4e8473e441ce5748cfa44a23648814f2656f429b85440157988c88de776c6ac008dc38bf09cbb746c230a46c69fe

          • C:\Users\Admin\AppData\Local\Temp\nsz1E29.tmp\nsExec.dll
            Filesize

            6KB

            MD5

            acc2b699edfea5bf5aae45aba3a41e96

            SHA1

            d2accf4d494e43ceb2cff69abe4dd17147d29cc2

            SHA256

            168a974eaa3f588d759db3f47c1a9fdc3494ba1fa1a73a84e5e3b2a4d58abd7e

            SHA512

            e29ea10ada98c71a18273b04f44f385b120d4e8473e441ce5748cfa44a23648814f2656f429b85440157988c88de776c6ac008dc38bf09cbb746c230a46c69fe

          • C:\Windows\SysWOW64\hfnapi.dll
            Filesize

            106KB

            MD5

            688ae5cc08c3551b7bf797fadc79183d

            SHA1

            aab5493d9e3673063dd25d379c6566800d2994df

            SHA256

            eb3c7a8dbbe231078c97e177118d6070333d1f77555baf53cd9d75f6d8539cf5

            SHA512

            d3e9bb239fd16e4379b8dafaab1e8ad433f14ab4b5d059c3707ab4340abea9a85987d002f807ce1e50590520c9404f1f0e4d5369043595d2074a356faaa89e46

          • C:\Windows\SysWOW64\hfnapi.dll
            Filesize

            106KB

            MD5

            688ae5cc08c3551b7bf797fadc79183d

            SHA1

            aab5493d9e3673063dd25d379c6566800d2994df

            SHA256

            eb3c7a8dbbe231078c97e177118d6070333d1f77555baf53cd9d75f6d8539cf5

            SHA512

            d3e9bb239fd16e4379b8dafaab1e8ad433f14ab4b5d059c3707ab4340abea9a85987d002f807ce1e50590520c9404f1f0e4d5369043595d2074a356faaa89e46

          • C:\Windows\SysWOW64\hfnapi.dll
            Filesize

            106KB

            MD5

            688ae5cc08c3551b7bf797fadc79183d

            SHA1

            aab5493d9e3673063dd25d379c6566800d2994df

            SHA256

            eb3c7a8dbbe231078c97e177118d6070333d1f77555baf53cd9d75f6d8539cf5

            SHA512

            d3e9bb239fd16e4379b8dafaab1e8ad433f14ab4b5d059c3707ab4340abea9a85987d002f807ce1e50590520c9404f1f0e4d5369043595d2074a356faaa89e46

          • C:\Windows\SysWOW64\hfnapi.dll
            Filesize

            106KB

            MD5

            688ae5cc08c3551b7bf797fadc79183d

            SHA1

            aab5493d9e3673063dd25d379c6566800d2994df

            SHA256

            eb3c7a8dbbe231078c97e177118d6070333d1f77555baf53cd9d75f6d8539cf5

            SHA512

            d3e9bb239fd16e4379b8dafaab1e8ad433f14ab4b5d059c3707ab4340abea9a85987d002f807ce1e50590520c9404f1f0e4d5369043595d2074a356faaa89e46

          • C:\Windows\SysWOW64\hfpapi.dll
            Filesize

            241KB

            MD5

            653c84d098894f6b4f7cc1420a36786a

            SHA1

            7d58cf10efc23176e87a20238fefab325311c190

            SHA256

            f8609c3a6ba7e354bbee34e210b1f022de40f7ab5ff91ee969045eda987ddfa7

            SHA512

            3173470dc55d737bae018e1a29d02dc1dfad4055d2a3ce629b3535184f590fe2c28a6a30b98ed12513e54113ee0f803d50b2e753aec2780372ea3c0891d45772

          • C:\Windows\SysWOW64\hfpapi.dll
            Filesize

            241KB

            MD5

            653c84d098894f6b4f7cc1420a36786a

            SHA1

            7d58cf10efc23176e87a20238fefab325311c190

            SHA256

            f8609c3a6ba7e354bbee34e210b1f022de40f7ab5ff91ee969045eda987ddfa7

            SHA512

            3173470dc55d737bae018e1a29d02dc1dfad4055d2a3ce629b3535184f590fe2c28a6a30b98ed12513e54113ee0f803d50b2e753aec2780372ea3c0891d45772

          • C:\Windows\SysWOW64\hfpapi.dll
            Filesize

            241KB

            MD5

            653c84d098894f6b4f7cc1420a36786a

            SHA1

            7d58cf10efc23176e87a20238fefab325311c190

            SHA256

            f8609c3a6ba7e354bbee34e210b1f022de40f7ab5ff91ee969045eda987ddfa7

            SHA512

            3173470dc55d737bae018e1a29d02dc1dfad4055d2a3ce629b3535184f590fe2c28a6a30b98ed12513e54113ee0f803d50b2e753aec2780372ea3c0891d45772

          • C:\Windows\SysWOW64\installd.exe
            Filesize

            108KB

            MD5

            5fc87e780515f75e922968de38b52c18

            SHA1

            29f8884e20a08cd6ff557cfa33c4ed90d1611ce3

            SHA256

            1cc19e096deb4b2c3014af2c4294cec925dee010e71e0d79cba2cf3c16338ebf

            SHA512

            e0c079da2fadfadf7289cd029336d38862ef66c54bab13710cca45eaf9c61f6a4ec2edf640d75f4e179bb62c918096010be92a15fb8989f6cbb60a301a0656ae

          • C:\Windows\SysWOW64\installd.exe
            Filesize

            108KB

            MD5

            5fc87e780515f75e922968de38b52c18

            SHA1

            29f8884e20a08cd6ff557cfa33c4ed90d1611ce3

            SHA256

            1cc19e096deb4b2c3014af2c4294cec925dee010e71e0d79cba2cf3c16338ebf

            SHA512

            e0c079da2fadfadf7289cd029336d38862ef66c54bab13710cca45eaf9c61f6a4ec2edf640d75f4e179bb62c918096010be92a15fb8989f6cbb60a301a0656ae

          • C:\Windows\SysWOW64\nethtsrv.exe
            Filesize

            176KB

            MD5

            ddf7d0d71997b83607f1014c772a233d

            SHA1

            ad2d550b973e3f5ed7d0693c26491d97eca2fdb7

            SHA256

            4f360426439d0f1564075c7adca910c104129365b5f664cb7c3378f9ca8848f2

            SHA512

            2706575d89ba09f9a33eda09edbf97a11df72c7f496e9a129eedcc9a6b97f2d31ad46aa4a8a1845d0fec3a5a5039105e955afed70464f38c81bcf52b0087a38c

          • C:\Windows\SysWOW64\nethtsrv.exe
            Filesize

            176KB

            MD5

            ddf7d0d71997b83607f1014c772a233d

            SHA1

            ad2d550b973e3f5ed7d0693c26491d97eca2fdb7

            SHA256

            4f360426439d0f1564075c7adca910c104129365b5f664cb7c3378f9ca8848f2

            SHA512

            2706575d89ba09f9a33eda09edbf97a11df72c7f496e9a129eedcc9a6b97f2d31ad46aa4a8a1845d0fec3a5a5039105e955afed70464f38c81bcf52b0087a38c

          • C:\Windows\SysWOW64\nethtsrv.exe
            Filesize

            176KB

            MD5

            ddf7d0d71997b83607f1014c772a233d

            SHA1

            ad2d550b973e3f5ed7d0693c26491d97eca2fdb7

            SHA256

            4f360426439d0f1564075c7adca910c104129365b5f664cb7c3378f9ca8848f2

            SHA512

            2706575d89ba09f9a33eda09edbf97a11df72c7f496e9a129eedcc9a6b97f2d31ad46aa4a8a1845d0fec3a5a5039105e955afed70464f38c81bcf52b0087a38c

          • C:\Windows\SysWOW64\netupdsrv.exe
            Filesize

            158KB

            MD5

            1402a97e3f8e333a00dadb99ddfa5191

            SHA1

            206aae15f2a80d6c3f950017a54adfaa554e7ca0

            SHA256

            7ac9d2c924dc3ab8af56ad0f38683813361a5da504142c8a680bf28ebf524370

            SHA512

            729ba699ffbb0eda5919b2f5c0900a145a94b091c653e769e30a0cdf93656380a8eab697181315f29559314d0b7be621e04922b2cfb882cb8cab8190c0a7a5cc

          • C:\Windows\SysWOW64\netupdsrv.exe
            Filesize

            158KB

            MD5

            1402a97e3f8e333a00dadb99ddfa5191

            SHA1

            206aae15f2a80d6c3f950017a54adfaa554e7ca0

            SHA256

            7ac9d2c924dc3ab8af56ad0f38683813361a5da504142c8a680bf28ebf524370

            SHA512

            729ba699ffbb0eda5919b2f5c0900a145a94b091c653e769e30a0cdf93656380a8eab697181315f29559314d0b7be621e04922b2cfb882cb8cab8190c0a7a5cc

          • C:\Windows\SysWOW64\netupdsrv.exe
            Filesize

            158KB

            MD5

            1402a97e3f8e333a00dadb99ddfa5191

            SHA1

            206aae15f2a80d6c3f950017a54adfaa554e7ca0

            SHA256

            7ac9d2c924dc3ab8af56ad0f38683813361a5da504142c8a680bf28ebf524370

            SHA512

            729ba699ffbb0eda5919b2f5c0900a145a94b091c653e769e30a0cdf93656380a8eab697181315f29559314d0b7be621e04922b2cfb882cb8cab8190c0a7a5cc

          • memory/1020-136-0x0000000000000000-mapping.dmp
          • memory/2160-157-0x0000000000000000-mapping.dmp
          • memory/2228-141-0x0000000000000000-mapping.dmp
          • memory/2308-146-0x0000000000000000-mapping.dmp
          • memory/2772-139-0x0000000000000000-mapping.dmp
          • memory/3228-158-0x0000000000000000-mapping.dmp
          • memory/3384-165-0x0000000000000000-mapping.dmp
          • memory/4204-135-0x0000000000000000-mapping.dmp
          • memory/4456-152-0x0000000000000000-mapping.dmp
          • memory/4792-164-0x0000000000000000-mapping.dmp
          • memory/4944-140-0x0000000000000000-mapping.dmp