Analysis

  • max time kernel
    44s
  • max time network
    49s
  • platform
    windows7_x64
  • resource
    win7-20220901-en
  • resource tags

    arch:x64arch:x86image:win7-20220901-enlocale:en-usos:windows7-x64system
  • submitted
    23-11-2022 10:16

General

  • Target

    ab2356891760bc1deab7b4bef2b1e4afbc30cd2c84e11193f05d9aacf4853fd5.exe

  • Size

    602KB

  • MD5

    84e17fab6b0d2ebf054edadb42578557

  • SHA1

    f8efc654dec18ef84b5b7a90918f7ccb82a44f3b

  • SHA256

    ab2356891760bc1deab7b4bef2b1e4afbc30cd2c84e11193f05d9aacf4853fd5

  • SHA512

    b12720dc68c05c7339e99ea3e597af0111cb88e950f8f37a7b0729e62941386976b84ac613bb2d8a563bed941572f6b2ab336996f33b5c8038e53e31956b7f09

  • SSDEEP

    12288:2Iny5DYTZImveH1Zlgcv7/GM66wgNPefbMxXL8MElS:4UTZJveH1DvDV66wgNPX/E0

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\ab2356891760bc1deab7b4bef2b1e4afbc30cd2c84e11193f05d9aacf4853fd5.exe
    "C:\Users\Admin\AppData\Local\Temp\ab2356891760bc1deab7b4bef2b1e4afbc30cd2c84e11193f05d9aacf4853fd5.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:1492
    • C:\Windows\SysWOW64\net.exe
      net stop nethttpservice
      2⤵
      • Suspicious use of WriteProcessMemory
      PID:276
      • C:\Windows\SysWOW64\net1.exe
        C:\Windows\system32\net1 stop nethttpservice
        3⤵
          PID:1064
      • C:\Windows\SysWOW64\net.exe
        net stop serviceupdater
        2⤵
        • Suspicious use of WriteProcessMemory
        PID:584
        • C:\Windows\SysWOW64\net1.exe
          C:\Windows\system32\net1 stop serviceupdater
          3⤵
            PID:540
        • C:\Windows\SysWOW64\installd.exe
          "C:\Windows\system32\installd.exe" nethfdrv
          2⤵
          • Executes dropped EXE
          • Loads dropped DLL
          PID:636
        • C:\Windows\SysWOW64\nethtsrv.exe
          "C:\Windows\system32\nethtsrv.exe" -nfdi
          2⤵
          • Executes dropped EXE
          • Loads dropped DLL
          PID:840
        • C:\Windows\SysWOW64\netupdsrv.exe
          "C:\Windows\system32\netupdsrv.exe" -nfdi
          2⤵
          • Executes dropped EXE
          PID:1392
        • C:\Windows\SysWOW64\net.exe
          net start nethttpservice
          2⤵
          • Suspicious use of WriteProcessMemory
          PID:1904
          • C:\Windows\SysWOW64\net1.exe
            C:\Windows\system32\net1 start nethttpservice
            3⤵
              PID:1144
          • C:\Windows\SysWOW64\net.exe
            net start serviceupdater
            2⤵
            • Suspicious use of WriteProcessMemory
            PID:1012
            • C:\Windows\SysWOW64\net1.exe
              C:\Windows\system32\net1 start serviceupdater
              3⤵
                PID:1652
          • C:\Windows\SysWOW64\nethtsrv.exe
            C:\Windows\SysWOW64\nethtsrv.exe
            1⤵
            • Executes dropped EXE
            • Loads dropped DLL
            • Suspicious use of AdjustPrivilegeToken
            PID:804
          • C:\Windows\SysWOW64\netupdsrv.exe
            C:\Windows\SysWOW64\netupdsrv.exe
            1⤵
            • Executes dropped EXE
            PID:1516

          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:\Windows\SysWOW64\hfnapi.dll
            Filesize

            106KB

            MD5

            92affe13a99ab574a71fb88f4a153ca5

            SHA1

            426812aaa093cbd2eddb8fe498378c7d1c86fb60

            SHA256

            8b442b129544497a930af575a0e06c4f822b935b60bbd9415b89c0966d00eb9c

            SHA512

            614bfabdf05145e02df644c17beaf4f2f4a64e935fe07843c36a370bbbb530bc853a69728d4c02330c9ba89b4f6c558bbe55642cf1225f65de6512be86f7c8ee

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

            241KB

            MD5

            2381ad3d8f27f74a8dcf56d05d57ab19

            SHA1

            ecab44dccfe61441882c2ee273d048df0f18ef1e

            SHA256

            d5cfd12b2572175cd935230616c9ae644c5098b7e977ec504b51f6acfdb5379e

            SHA512

            f52d7f2ce4a46158f324fe85ed4c41989ed887178064fe077bec7353a813c38defcf15ef856f4e07f86deb22d53a1e9cc9d485e9c354ce2531bc6b54f5efcb52

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

            108KB

            MD5

            6da7e9dff57f865b19a620caf1409fef

            SHA1

            7803ffc9fc5a59ad60a1454e0b676a5678a07182

            SHA256

            327df0c515dfe3f4bcc78198a809d91fe8412f62c4d9d8d8aa2790812ab90d15

            SHA512

            210dfe94c32122924aec26dfcfe22a99720e2fa784102e415b0db778f1f51a6bed82856f1e01d4b9711cbfcfff41c58e97a0eff965136c8937c6301a42d4e700

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

            176KB

            MD5

            984e6aeb0b8fea7a7d4103c8bdd659fc

            SHA1

            363729fe445689f33020e95e6029824ade72c24c

            SHA256

            594177ac55fb2adc50a071bcd544b2443231c422cc12720fa4638b671cb6e7cd

            SHA512

            3dd0eb09a61d9bb62315b3d4a248ef29e4e56df5a53fa5b27b98696210ee66a9b4e4922ba7a1bd9c5629ff3d1935bd7310ab6a037fa69b2ab8f74bfd2aefee0c

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

            176KB

            MD5

            984e6aeb0b8fea7a7d4103c8bdd659fc

            SHA1

            363729fe445689f33020e95e6029824ade72c24c

            SHA256

            594177ac55fb2adc50a071bcd544b2443231c422cc12720fa4638b671cb6e7cd

            SHA512

            3dd0eb09a61d9bb62315b3d4a248ef29e4e56df5a53fa5b27b98696210ee66a9b4e4922ba7a1bd9c5629ff3d1935bd7310ab6a037fa69b2ab8f74bfd2aefee0c

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

            158KB

            MD5

            e8308551a4ace31131ad9f3b309b0b38

            SHA1

            a68d0c64069f74f468096503b7db42e0fd5c72d8

            SHA256

            97f5b7f725032037f38c8e78a802fd92e4b6e549363dda58b6c616b4b6859fa1

            SHA512

            cb770e702db7b53df4e06c1e231ce4d1f5f44be38e08ef4b42b5be25c51f5934c1a8c5b265331267f97596c89195b7ccf9889e5b63e2413ee406a86fc8eefcb2

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

            158KB

            MD5

            e8308551a4ace31131ad9f3b309b0b38

            SHA1

            a68d0c64069f74f468096503b7db42e0fd5c72d8

            SHA256

            97f5b7f725032037f38c8e78a802fd92e4b6e549363dda58b6c616b4b6859fa1

            SHA512

            cb770e702db7b53df4e06c1e231ce4d1f5f44be38e08ef4b42b5be25c51f5934c1a8c5b265331267f97596c89195b7ccf9889e5b63e2413ee406a86fc8eefcb2

          • \Users\Admin\AppData\Local\Temp\nsy128A.tmp\System.dll
            Filesize

            11KB

            MD5

            c17103ae9072a06da581dec998343fc1

            SHA1

            b72148c6bdfaada8b8c3f950e610ee7cf1da1f8d

            SHA256

            dc58d8ad81cacb0c1ed72e33bff8f23ea40b5252b5bb55d393a0903e6819ae2f

            SHA512

            d32a71aaef18e993f28096d536e41c4d016850721b31171513ce28bbd805a54fd290b7c3e9d935f72e676a1acfb4f0dcc89d95040a0dd29f2b6975855c18986f

          • \Users\Admin\AppData\Local\Temp\nsy128A.tmp\nsExec.dll
            Filesize

            6KB

            MD5

            acc2b699edfea5bf5aae45aba3a41e96

            SHA1

            d2accf4d494e43ceb2cff69abe4dd17147d29cc2

            SHA256

            168a974eaa3f588d759db3f47c1a9fdc3494ba1fa1a73a84e5e3b2a4d58abd7e

            SHA512

            e29ea10ada98c71a18273b04f44f385b120d4e8473e441ce5748cfa44a23648814f2656f429b85440157988c88de776c6ac008dc38bf09cbb746c230a46c69fe

          • \Users\Admin\AppData\Local\Temp\nsy128A.tmp\nsExec.dll
            Filesize

            6KB

            MD5

            acc2b699edfea5bf5aae45aba3a41e96

            SHA1

            d2accf4d494e43ceb2cff69abe4dd17147d29cc2

            SHA256

            168a974eaa3f588d759db3f47c1a9fdc3494ba1fa1a73a84e5e3b2a4d58abd7e

            SHA512

            e29ea10ada98c71a18273b04f44f385b120d4e8473e441ce5748cfa44a23648814f2656f429b85440157988c88de776c6ac008dc38bf09cbb746c230a46c69fe

          • \Users\Admin\AppData\Local\Temp\nsy128A.tmp\nsExec.dll
            Filesize

            6KB

            MD5

            acc2b699edfea5bf5aae45aba3a41e96

            SHA1

            d2accf4d494e43ceb2cff69abe4dd17147d29cc2

            SHA256

            168a974eaa3f588d759db3f47c1a9fdc3494ba1fa1a73a84e5e3b2a4d58abd7e

            SHA512

            e29ea10ada98c71a18273b04f44f385b120d4e8473e441ce5748cfa44a23648814f2656f429b85440157988c88de776c6ac008dc38bf09cbb746c230a46c69fe

          • \Users\Admin\AppData\Local\Temp\nsy128A.tmp\nsExec.dll
            Filesize

            6KB

            MD5

            acc2b699edfea5bf5aae45aba3a41e96

            SHA1

            d2accf4d494e43ceb2cff69abe4dd17147d29cc2

            SHA256

            168a974eaa3f588d759db3f47c1a9fdc3494ba1fa1a73a84e5e3b2a4d58abd7e

            SHA512

            e29ea10ada98c71a18273b04f44f385b120d4e8473e441ce5748cfa44a23648814f2656f429b85440157988c88de776c6ac008dc38bf09cbb746c230a46c69fe

          • \Windows\SysWOW64\hfnapi.dll
            Filesize

            106KB

            MD5

            92affe13a99ab574a71fb88f4a153ca5

            SHA1

            426812aaa093cbd2eddb8fe498378c7d1c86fb60

            SHA256

            8b442b129544497a930af575a0e06c4f822b935b60bbd9415b89c0966d00eb9c

            SHA512

            614bfabdf05145e02df644c17beaf4f2f4a64e935fe07843c36a370bbbb530bc853a69728d4c02330c9ba89b4f6c558bbe55642cf1225f65de6512be86f7c8ee

          • \Windows\SysWOW64\hfnapi.dll
            Filesize

            106KB

            MD5

            92affe13a99ab574a71fb88f4a153ca5

            SHA1

            426812aaa093cbd2eddb8fe498378c7d1c86fb60

            SHA256

            8b442b129544497a930af575a0e06c4f822b935b60bbd9415b89c0966d00eb9c

            SHA512

            614bfabdf05145e02df644c17beaf4f2f4a64e935fe07843c36a370bbbb530bc853a69728d4c02330c9ba89b4f6c558bbe55642cf1225f65de6512be86f7c8ee

          • \Windows\SysWOW64\hfnapi.dll
            Filesize

            106KB

            MD5

            92affe13a99ab574a71fb88f4a153ca5

            SHA1

            426812aaa093cbd2eddb8fe498378c7d1c86fb60

            SHA256

            8b442b129544497a930af575a0e06c4f822b935b60bbd9415b89c0966d00eb9c

            SHA512

            614bfabdf05145e02df644c17beaf4f2f4a64e935fe07843c36a370bbbb530bc853a69728d4c02330c9ba89b4f6c558bbe55642cf1225f65de6512be86f7c8ee

          • \Windows\SysWOW64\hfpapi.dll
            Filesize

            241KB

            MD5

            2381ad3d8f27f74a8dcf56d05d57ab19

            SHA1

            ecab44dccfe61441882c2ee273d048df0f18ef1e

            SHA256

            d5cfd12b2572175cd935230616c9ae644c5098b7e977ec504b51f6acfdb5379e

            SHA512

            f52d7f2ce4a46158f324fe85ed4c41989ed887178064fe077bec7353a813c38defcf15ef856f4e07f86deb22d53a1e9cc9d485e9c354ce2531bc6b54f5efcb52

          • \Windows\SysWOW64\hfpapi.dll
            Filesize

            241KB

            MD5

            2381ad3d8f27f74a8dcf56d05d57ab19

            SHA1

            ecab44dccfe61441882c2ee273d048df0f18ef1e

            SHA256

            d5cfd12b2572175cd935230616c9ae644c5098b7e977ec504b51f6acfdb5379e

            SHA512

            f52d7f2ce4a46158f324fe85ed4c41989ed887178064fe077bec7353a813c38defcf15ef856f4e07f86deb22d53a1e9cc9d485e9c354ce2531bc6b54f5efcb52

          • \Windows\SysWOW64\installd.exe
            Filesize

            108KB

            MD5

            6da7e9dff57f865b19a620caf1409fef

            SHA1

            7803ffc9fc5a59ad60a1454e0b676a5678a07182

            SHA256

            327df0c515dfe3f4bcc78198a809d91fe8412f62c4d9d8d8aa2790812ab90d15

            SHA512

            210dfe94c32122924aec26dfcfe22a99720e2fa784102e415b0db778f1f51a6bed82856f1e01d4b9711cbfcfff41c58e97a0eff965136c8937c6301a42d4e700

          • \Windows\SysWOW64\nethtsrv.exe
            Filesize

            176KB

            MD5

            984e6aeb0b8fea7a7d4103c8bdd659fc

            SHA1

            363729fe445689f33020e95e6029824ade72c24c

            SHA256

            594177ac55fb2adc50a071bcd544b2443231c422cc12720fa4638b671cb6e7cd

            SHA512

            3dd0eb09a61d9bb62315b3d4a248ef29e4e56df5a53fa5b27b98696210ee66a9b4e4922ba7a1bd9c5629ff3d1935bd7310ab6a037fa69b2ab8f74bfd2aefee0c

          • \Windows\SysWOW64\netupdsrv.exe
            Filesize

            158KB

            MD5

            e8308551a4ace31131ad9f3b309b0b38

            SHA1

            a68d0c64069f74f468096503b7db42e0fd5c72d8

            SHA256

            97f5b7f725032037f38c8e78a802fd92e4b6e549363dda58b6c616b4b6859fa1

            SHA512

            cb770e702db7b53df4e06c1e231ce4d1f5f44be38e08ef4b42b5be25c51f5934c1a8c5b265331267f97596c89195b7ccf9889e5b63e2413ee406a86fc8eefcb2

          • memory/276-58-0x0000000000000000-mapping.dmp
          • memory/540-62-0x0000000000000000-mapping.dmp
          • memory/584-61-0x0000000000000000-mapping.dmp
          • memory/636-64-0x0000000000000000-mapping.dmp
          • memory/840-70-0x0000000000000000-mapping.dmp
          • memory/1012-86-0x0000000000000000-mapping.dmp
          • memory/1064-59-0x0000000000000000-mapping.dmp
          • memory/1144-81-0x0000000000000000-mapping.dmp
          • memory/1392-76-0x0000000000000000-mapping.dmp
          • memory/1492-54-0x0000000076BA1000-0x0000000076BA3000-memory.dmp
            Filesize

            8KB

          • memory/1492-55-0x0000000000360000-0x00000000007BE000-memory.dmp
            Filesize

            4.4MB

          • memory/1492-90-0x0000000000360000-0x00000000007BE000-memory.dmp
            Filesize

            4.4MB

          • memory/1652-87-0x0000000000000000-mapping.dmp
          • memory/1904-80-0x0000000000000000-mapping.dmp