Analysis

  • max time kernel
    43s
  • max time network
    51s
  • platform
    windows7_x64
  • resource
    win7-20220901-en
  • resource tags

    arch:x64arch:x86image:win7-20220901-enlocale:en-usos:windows7-x64system
  • submitted
    23/11/2022, 23:50

General

  • Target

    04b0ce9fc64792286a80ca3108a13b2bcb4be8f4bf645cb826a96612f4ee66c7.exe

  • Size

    561KB

  • MD5

    e9cd71a993cb997c9a4a838852f0b286

  • SHA1

    e8c2584811257dc7024e78508ffd7db18030d133

  • SHA256

    04b0ce9fc64792286a80ca3108a13b2bcb4be8f4bf645cb826a96612f4ee66c7

  • SHA512

    3e2f06faa411e8a9641d19f84ceccc637d2a7a5ad8a67656d3b6910959ecb3d27bf3e0cd876ba17dda016e2003e2d41b410d929cc9ff94b9de641eb0acf46784

  • SSDEEP

    12288:yPRYzPbfWf3I3L7Si1Cn3A2HNglwRmxKRXlsKWgBioblBoX:fzTfi3I3/RCn3A2HNzmx818C/5M

Score
8/10

Malware Config

Signatures

  • Drops file in Drivers directory 1 IoCs
  • Executes dropped EXE 5 IoCs
  • Loads dropped DLL 13 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.

  • Runs net.exe
  • Suspicious behavior: LoadsDriver 1 IoCs
  • Suspicious use of AdjustPrivilegeToken 1 IoCs
  • Suspicious use of WriteProcessMemory 50 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\04b0ce9fc64792286a80ca3108a13b2bcb4be8f4bf645cb826a96612f4ee66c7.exe
    "C:\Users\Admin\AppData\Local\Temp\04b0ce9fc64792286a80ca3108a13b2bcb4be8f4bf645cb826a96612f4ee66c7.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:1356
    • C:\Windows\SysWOW64\net.exe
      net stop nethttpservice
      2⤵
      • Suspicious use of WriteProcessMemory
      PID:1692
      • C:\Windows\SysWOW64\net1.exe
        C:\Windows\system32\net1 stop nethttpservice
        3⤵
          PID:1540
      • C:\Windows\SysWOW64\net.exe
        net stop serviceupdater
        2⤵
        • Suspicious use of WriteProcessMemory
        PID:580
        • C:\Windows\SysWOW64\net1.exe
          C:\Windows\system32\net1 stop serviceupdater
          3⤵
            PID:276
        • C:\Windows\SysWOW64\installd.exe
          "C:\Windows\system32\installd.exe" nethfdrv
          2⤵
          • Executes dropped EXE
          • Loads dropped DLL
          PID:1656
        • C:\Windows\SysWOW64\nethtsrv.exe
          "C:\Windows\system32\nethtsrv.exe" -nfdi
          2⤵
          • Executes dropped EXE
          • Loads dropped DLL
          PID:980
        • C:\Windows\SysWOW64\netupdsrv.exe
          "C:\Windows\system32\netupdsrv.exe" -nfdi
          2⤵
          • Executes dropped EXE
          PID:1780
        • C:\Windows\SysWOW64\net.exe
          net start nethttpservice
          2⤵
          • Suspicious use of WriteProcessMemory
          PID:1932
          • C:\Windows\SysWOW64\net1.exe
            C:\Windows\system32\net1 start nethttpservice
            3⤵
              PID:968
          • C:\Windows\SysWOW64\net.exe
            net start serviceupdater
            2⤵
            • Suspicious use of WriteProcessMemory
            PID:832
            • C:\Windows\SysWOW64\net1.exe
              C:\Windows\system32\net1 start serviceupdater
              3⤵
                PID:572
          • C:\Windows\SysWOW64\nethtsrv.exe
            C:\Windows\SysWOW64\nethtsrv.exe
            1⤵
            • Executes dropped EXE
            • Loads dropped DLL
            • Suspicious use of AdjustPrivilegeToken
            PID:1816
          • C:\Windows\SysWOW64\netupdsrv.exe
            C:\Windows\SysWOW64\netupdsrv.exe
            1⤵
            • Executes dropped EXE
            PID:1556

          Network

                MITRE ATT&CK Enterprise v6

                Replay Monitor

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                Downloads

                • C:\Windows\SysWOW64\hfnapi.dll

                  Filesize

                  106KB

                  MD5

                  1fa6e8d6afc3ebac75082144af5f6d7e

                  SHA1

                  04cd33780c22eb4d491fd40385f466f094868748

                  SHA256

                  7eb102d40b8ea7b691fbac42b9558ecddc25af30dc9c9e7a49a2fc0cad9f06a1

                  SHA512

                  882d5e2bd153050f08671095adc3f084e85d5cde38da31061caae25408f813293bb49e8dedc47058d0edaa5cbc8ff3e235a35928afcce99d008a4ff53122b092

                • C:\Windows\SysWOW64\hfpapi.dll

                  Filesize

                  241KB

                  MD5

                  38f59ee4c15c11d57b0ae332da4a7d07

                  SHA1

                  7b058f7fed46c4fffd67a9626c1e0971466bb353

                  SHA256

                  5516cb73662deb2f488cb103bd357891c4787991ee7ac3db22ff3298f11f6398

                  SHA512

                  c18d0fed89fd57253b9ec24f78964e8f05ea073a159ce74551187ca8d72715f465f4085eff1ee8fde333f7e1add9887d0d1516b5d0fc86810c962dabf5e842ef

                • C:\Windows\SysWOW64\installd.exe

                  Filesize

                  108KB

                  MD5

                  aa108641a1ed82e151c440b525f3e580

                  SHA1

                  acc5ed93acd26200529c4f2a249f121343a8bae5

                  SHA256

                  565d95dd43ef32afbcae76ecb113eeeb82c4b7a14ce8d8e2b36418dd321ba012

                  SHA512

                  856d56624e96df6e9b341cf587508bb31bddfa326c621d6ffebc3e8cd3399f2f0163e1d75c706311fb24a6ae1f0cdea220f306f660632db17e8ac4afbf6260ee

                • C:\Windows\SysWOW64\nethtsrv.exe

                  Filesize

                  176KB

                  MD5

                  312dacfc9616e1bf71c6dedafcc507d3

                  SHA1

                  b08890cfb6a60deb1e5f0d3fc498f618a360143a

                  SHA256

                  9315decf61c0081199e73ffdde09640999f2912bcf7ea483fc88388729a9bcfd

                  SHA512

                  7c3143290e6e54a28e01e38280ceb81ca7ef73751d7f1ba933101b19745529ea8012ad9b5986d2bc8182224109e9564b3433b7b7e168b9af04d46116369cd5d6

                • C:\Windows\SysWOW64\nethtsrv.exe

                  Filesize

                  176KB

                  MD5

                  312dacfc9616e1bf71c6dedafcc507d3

                  SHA1

                  b08890cfb6a60deb1e5f0d3fc498f618a360143a

                  SHA256

                  9315decf61c0081199e73ffdde09640999f2912bcf7ea483fc88388729a9bcfd

                  SHA512

                  7c3143290e6e54a28e01e38280ceb81ca7ef73751d7f1ba933101b19745529ea8012ad9b5986d2bc8182224109e9564b3433b7b7e168b9af04d46116369cd5d6

                • C:\Windows\SysWOW64\netupdsrv.exe

                  Filesize

                  158KB

                  MD5

                  e6529a7d03599781a7141a3cc7e05baf

                  SHA1

                  598ca60b4ca4b4aa3469fb85fde0e10f1852afd2

                  SHA256

                  eb8ae21fe8ae7b5fe9a661905b11adf0e26a884cc3c232820026f23ca94914a6

                  SHA512

                  d3347062d471adb075f02507052172f9a157417090411a8370aae7906d30a8a05f42780130378955bd04a338e2374177522dff4f85c37666e21074e67cd0a13f

                • C:\Windows\SysWOW64\netupdsrv.exe

                  Filesize

                  158KB

                  MD5

                  e6529a7d03599781a7141a3cc7e05baf

                  SHA1

                  598ca60b4ca4b4aa3469fb85fde0e10f1852afd2

                  SHA256

                  eb8ae21fe8ae7b5fe9a661905b11adf0e26a884cc3c232820026f23ca94914a6

                  SHA512

                  d3347062d471adb075f02507052172f9a157417090411a8370aae7906d30a8a05f42780130378955bd04a338e2374177522dff4f85c37666e21074e67cd0a13f

                • \Users\Admin\AppData\Local\Temp\nso18B2.tmp\System.dll

                  Filesize

                  11KB

                  MD5

                  c17103ae9072a06da581dec998343fc1

                  SHA1

                  b72148c6bdfaada8b8c3f950e610ee7cf1da1f8d

                  SHA256

                  dc58d8ad81cacb0c1ed72e33bff8f23ea40b5252b5bb55d393a0903e6819ae2f

                  SHA512

                  d32a71aaef18e993f28096d536e41c4d016850721b31171513ce28bbd805a54fd290b7c3e9d935f72e676a1acfb4f0dcc89d95040a0dd29f2b6975855c18986f

                • \Users\Admin\AppData\Local\Temp\nso18B2.tmp\nsExec.dll

                  Filesize

                  6KB

                  MD5

                  acc2b699edfea5bf5aae45aba3a41e96

                  SHA1

                  d2accf4d494e43ceb2cff69abe4dd17147d29cc2

                  SHA256

                  168a974eaa3f588d759db3f47c1a9fdc3494ba1fa1a73a84e5e3b2a4d58abd7e

                  SHA512

                  e29ea10ada98c71a18273b04f44f385b120d4e8473e441ce5748cfa44a23648814f2656f429b85440157988c88de776c6ac008dc38bf09cbb746c230a46c69fe

                • \Users\Admin\AppData\Local\Temp\nso18B2.tmp\nsExec.dll

                  Filesize

                  6KB

                  MD5

                  acc2b699edfea5bf5aae45aba3a41e96

                  SHA1

                  d2accf4d494e43ceb2cff69abe4dd17147d29cc2

                  SHA256

                  168a974eaa3f588d759db3f47c1a9fdc3494ba1fa1a73a84e5e3b2a4d58abd7e

                  SHA512

                  e29ea10ada98c71a18273b04f44f385b120d4e8473e441ce5748cfa44a23648814f2656f429b85440157988c88de776c6ac008dc38bf09cbb746c230a46c69fe

                • \Users\Admin\AppData\Local\Temp\nso18B2.tmp\nsExec.dll

                  Filesize

                  6KB

                  MD5

                  acc2b699edfea5bf5aae45aba3a41e96

                  SHA1

                  d2accf4d494e43ceb2cff69abe4dd17147d29cc2

                  SHA256

                  168a974eaa3f588d759db3f47c1a9fdc3494ba1fa1a73a84e5e3b2a4d58abd7e

                  SHA512

                  e29ea10ada98c71a18273b04f44f385b120d4e8473e441ce5748cfa44a23648814f2656f429b85440157988c88de776c6ac008dc38bf09cbb746c230a46c69fe

                • \Users\Admin\AppData\Local\Temp\nso18B2.tmp\nsExec.dll

                  Filesize

                  6KB

                  MD5

                  acc2b699edfea5bf5aae45aba3a41e96

                  SHA1

                  d2accf4d494e43ceb2cff69abe4dd17147d29cc2

                  SHA256

                  168a974eaa3f588d759db3f47c1a9fdc3494ba1fa1a73a84e5e3b2a4d58abd7e

                  SHA512

                  e29ea10ada98c71a18273b04f44f385b120d4e8473e441ce5748cfa44a23648814f2656f429b85440157988c88de776c6ac008dc38bf09cbb746c230a46c69fe

                • \Windows\SysWOW64\hfnapi.dll

                  Filesize

                  106KB

                  MD5

                  1fa6e8d6afc3ebac75082144af5f6d7e

                  SHA1

                  04cd33780c22eb4d491fd40385f466f094868748

                  SHA256

                  7eb102d40b8ea7b691fbac42b9558ecddc25af30dc9c9e7a49a2fc0cad9f06a1

                  SHA512

                  882d5e2bd153050f08671095adc3f084e85d5cde38da31061caae25408f813293bb49e8dedc47058d0edaa5cbc8ff3e235a35928afcce99d008a4ff53122b092

                • \Windows\SysWOW64\hfnapi.dll

                  Filesize

                  106KB

                  MD5

                  1fa6e8d6afc3ebac75082144af5f6d7e

                  SHA1

                  04cd33780c22eb4d491fd40385f466f094868748

                  SHA256

                  7eb102d40b8ea7b691fbac42b9558ecddc25af30dc9c9e7a49a2fc0cad9f06a1

                  SHA512

                  882d5e2bd153050f08671095adc3f084e85d5cde38da31061caae25408f813293bb49e8dedc47058d0edaa5cbc8ff3e235a35928afcce99d008a4ff53122b092

                • \Windows\SysWOW64\hfnapi.dll

                  Filesize

                  106KB

                  MD5

                  1fa6e8d6afc3ebac75082144af5f6d7e

                  SHA1

                  04cd33780c22eb4d491fd40385f466f094868748

                  SHA256

                  7eb102d40b8ea7b691fbac42b9558ecddc25af30dc9c9e7a49a2fc0cad9f06a1

                  SHA512

                  882d5e2bd153050f08671095adc3f084e85d5cde38da31061caae25408f813293bb49e8dedc47058d0edaa5cbc8ff3e235a35928afcce99d008a4ff53122b092

                • \Windows\SysWOW64\hfpapi.dll

                  Filesize

                  241KB

                  MD5

                  38f59ee4c15c11d57b0ae332da4a7d07

                  SHA1

                  7b058f7fed46c4fffd67a9626c1e0971466bb353

                  SHA256

                  5516cb73662deb2f488cb103bd357891c4787991ee7ac3db22ff3298f11f6398

                  SHA512

                  c18d0fed89fd57253b9ec24f78964e8f05ea073a159ce74551187ca8d72715f465f4085eff1ee8fde333f7e1add9887d0d1516b5d0fc86810c962dabf5e842ef

                • \Windows\SysWOW64\hfpapi.dll

                  Filesize

                  241KB

                  MD5

                  38f59ee4c15c11d57b0ae332da4a7d07

                  SHA1

                  7b058f7fed46c4fffd67a9626c1e0971466bb353

                  SHA256

                  5516cb73662deb2f488cb103bd357891c4787991ee7ac3db22ff3298f11f6398

                  SHA512

                  c18d0fed89fd57253b9ec24f78964e8f05ea073a159ce74551187ca8d72715f465f4085eff1ee8fde333f7e1add9887d0d1516b5d0fc86810c962dabf5e842ef

                • \Windows\SysWOW64\installd.exe

                  Filesize

                  108KB

                  MD5

                  aa108641a1ed82e151c440b525f3e580

                  SHA1

                  acc5ed93acd26200529c4f2a249f121343a8bae5

                  SHA256

                  565d95dd43ef32afbcae76ecb113eeeb82c4b7a14ce8d8e2b36418dd321ba012

                  SHA512

                  856d56624e96df6e9b341cf587508bb31bddfa326c621d6ffebc3e8cd3399f2f0163e1d75c706311fb24a6ae1f0cdea220f306f660632db17e8ac4afbf6260ee

                • \Windows\SysWOW64\nethtsrv.exe

                  Filesize

                  176KB

                  MD5

                  312dacfc9616e1bf71c6dedafcc507d3

                  SHA1

                  b08890cfb6a60deb1e5f0d3fc498f618a360143a

                  SHA256

                  9315decf61c0081199e73ffdde09640999f2912bcf7ea483fc88388729a9bcfd

                  SHA512

                  7c3143290e6e54a28e01e38280ceb81ca7ef73751d7f1ba933101b19745529ea8012ad9b5986d2bc8182224109e9564b3433b7b7e168b9af04d46116369cd5d6

                • \Windows\SysWOW64\netupdsrv.exe

                  Filesize

                  158KB

                  MD5

                  e6529a7d03599781a7141a3cc7e05baf

                  SHA1

                  598ca60b4ca4b4aa3469fb85fde0e10f1852afd2

                  SHA256

                  eb8ae21fe8ae7b5fe9a661905b11adf0e26a884cc3c232820026f23ca94914a6

                  SHA512

                  d3347062d471adb075f02507052172f9a157417090411a8370aae7906d30a8a05f42780130378955bd04a338e2374177522dff4f85c37666e21074e67cd0a13f

                • memory/1356-90-0x0000000000360000-0x00000000007BE000-memory.dmp

                  Filesize

                  4.4MB

                • memory/1356-54-0x0000000074DA1000-0x0000000074DA3000-memory.dmp

                  Filesize

                  8KB

                • memory/1356-62-0x0000000000360000-0x00000000007BE000-memory.dmp

                  Filesize

                  4.4MB