Analysis

  • max time kernel
    64s
  • max time network
    35s
  • platform
    windows7_x64
  • resource
    win7-20221111-en
  • resource tags

    arch:x64arch:x86image:win7-20221111-enlocale:en-usos:windows7-x64system
  • submitted
    23-11-2022 10:11

General

  • Target

    d079a9eb7a93945e1dec1324841628382c42b74293f034538072915a8f239c4c.exe

  • Size

    602KB

  • MD5

    5af328021e05927141b3f5f4e586dac4

  • SHA1

    b21261c61a8bbc09f1b6b48226c73ea2d9104614

  • SHA256

    d079a9eb7a93945e1dec1324841628382c42b74293f034538072915a8f239c4c

  • SHA512

    5927b6a8700340014b1a2692080bc68261dacde0818bebb2ab4def63ce0b72446f572e7848cab376b5124432b8a4364a855faf8cf2127261ce5a466256d09c1f

  • SSDEEP

    12288:DIny5DYTcIAn2FwWrdNcKSN9BK/aJeyAjyr1KOXPOs8odH:LUTcj4PNcHRJJRYyQOXW52

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\d079a9eb7a93945e1dec1324841628382c42b74293f034538072915a8f239c4c.exe
    "C:\Users\Admin\AppData\Local\Temp\d079a9eb7a93945e1dec1324841628382c42b74293f034538072915a8f239c4c.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:2020
    • C:\Windows\SysWOW64\net.exe
      net stop nethttpservice
      2⤵
      • Suspicious use of WriteProcessMemory
      PID:1208
      • C:\Windows\SysWOW64\net1.exe
        C:\Windows\system32\net1 stop nethttpservice
        3⤵
          PID:1972
      • C:\Windows\SysWOW64\net.exe
        net stop serviceupdater
        2⤵
        • Suspicious use of WriteProcessMemory
        PID:1128
        • C:\Windows\SysWOW64\net1.exe
          C:\Windows\system32\net1 stop serviceupdater
          3⤵
            PID:588
        • C:\Windows\SysWOW64\installd.exe
          "C:\Windows\system32\installd.exe" nethfdrv
          2⤵
          • Executes dropped EXE
          • Loads dropped DLL
          PID:768
        • C:\Windows\SysWOW64\nethtsrv.exe
          "C:\Windows\system32\nethtsrv.exe" -nfdi
          2⤵
          • Executes dropped EXE
          • Loads dropped DLL
          PID:576
        • C:\Windows\SysWOW64\netupdsrv.exe
          "C:\Windows\system32\netupdsrv.exe" -nfdi
          2⤵
          • Executes dropped EXE
          PID:1912
        • C:\Windows\SysWOW64\net.exe
          net start nethttpservice
          2⤵
          • Suspicious use of WriteProcessMemory
          PID:852
          • C:\Windows\SysWOW64\net1.exe
            C:\Windows\system32\net1 start nethttpservice
            3⤵
              PID:1092
          • C:\Windows\SysWOW64\net.exe
            net start serviceupdater
            2⤵
            • Suspicious use of WriteProcessMemory
            PID:1812
            • C:\Windows\SysWOW64\net1.exe
              C:\Windows\system32\net1 start serviceupdater
              3⤵
                PID:948
          • C:\Windows\SysWOW64\nethtsrv.exe
            C:\Windows\SysWOW64\nethtsrv.exe
            1⤵
            • Executes dropped EXE
            • Loads dropped DLL
            • Suspicious use of AdjustPrivilegeToken
            PID:1444
          • C:\Windows\SysWOW64\netupdsrv.exe
            C:\Windows\SysWOW64\netupdsrv.exe
            1⤵
            • Executes dropped EXE
            PID:1680

          Network

          MITRE ATT&CK Enterprise v6

          Replay Monitor

          Loading Replay Monitor...

          Downloads

          • C:\Windows\SysWOW64\hfnapi.dll

            Filesize

            106KB

            MD5

            2502e5dae7adcf22861d35961403a680

            SHA1

            66488dcbb7f2b5ccadbdced584c13d07fd01cc04

            SHA256

            6773d67532877da388e019c7e48878d1fde893099ede9ec57045d16778c08634

            SHA512

            76cf33edc852d6b9c691594db013da2daba9da6dfa81d69a6ef14e3784bcd0feaac202cf1792277a20c1f6dfd8156358e9ae246a8f649cc2a605cfe138fb3bb7

          • C:\Windows\SysWOW64\hfpapi.dll

            Filesize

            244KB

            MD5

            7efa6a221daaa75257b6449470c66d54

            SHA1

            5fc713ebc09e7af7a500eb0cc2a1c26e5b66487a

            SHA256

            43506c52e1ce778e57f1d1866e4c2f3c5400235020cc39921beac0bddbfb67fa

            SHA512

            894e120a73bb3448b0535509161b17636165ed754891fc4abcbe2417a38a1d4b985f6751154d2554103712a89abb4a1c3bb9eb0f698bb449ea3c4ae9ab1cdacb

          • C:\Windows\SysWOW64\installd.exe

            Filesize

            108KB

            MD5

            bac0451451071bb01b3673a57fd22725

            SHA1

            27bccde323368a867a638f68ea114af799bb5fcf

            SHA256

            01a232dc90c33a1fc1c08c28caa9c7533329487b23db80642dcb67b4d6b71a6d

            SHA512

            695be69cf484b24c2c29abfdd23a042808be5a9e9ad851264072f4f76eac891d4bf7b4e7dc0edf812c7193eebfaf4591a2e7c155ad5974e34c6619f17d082e8b

          • C:\Windows\SysWOW64\nethtsrv.exe

            Filesize

            176KB

            MD5

            7fa42f6c1296c028315a7cef53105ee3

            SHA1

            2b37b3bb32ab6c520ffe9bc24121027c3e7c0005

            SHA256

            e0bd50d2f99114437252e2d4ed83de42c3acdb33f1e670f08491a1b8da0f12e0

            SHA512

            47cc73d10280307ab4adf012182970d4690d5beb6647aba498e966cc0414e695f38b3e85b64b00967865a16f5c79adc35c5815af32de45be4cdb2e11f125d42b

          • C:\Windows\SysWOW64\nethtsrv.exe

            Filesize

            176KB

            MD5

            7fa42f6c1296c028315a7cef53105ee3

            SHA1

            2b37b3bb32ab6c520ffe9bc24121027c3e7c0005

            SHA256

            e0bd50d2f99114437252e2d4ed83de42c3acdb33f1e670f08491a1b8da0f12e0

            SHA512

            47cc73d10280307ab4adf012182970d4690d5beb6647aba498e966cc0414e695f38b3e85b64b00967865a16f5c79adc35c5815af32de45be4cdb2e11f125d42b

          • C:\Windows\SysWOW64\netupdsrv.exe

            Filesize

            159KB

            MD5

            1f20222c2dfbc5d9f1f9f320e545dda7

            SHA1

            24ab344972dd7749eb85529520aa97118a6fcfc8

            SHA256

            a5b2fe83e856952096d2ffba4a16e767cbec705b4f844eb1748451e528a2b182

            SHA512

            96f757987647c2f69904a3b5af199b04398514db621825e564b8807f5306ec0f594258f36131bce0022194ea942706b623f202b492666fa6362dd35b7da0934c

          • C:\Windows\SysWOW64\netupdsrv.exe

            Filesize

            159KB

            MD5

            1f20222c2dfbc5d9f1f9f320e545dda7

            SHA1

            24ab344972dd7749eb85529520aa97118a6fcfc8

            SHA256

            a5b2fe83e856952096d2ffba4a16e767cbec705b4f844eb1748451e528a2b182

            SHA512

            96f757987647c2f69904a3b5af199b04398514db621825e564b8807f5306ec0f594258f36131bce0022194ea942706b623f202b492666fa6362dd35b7da0934c

          • \Users\Admin\AppData\Local\Temp\nst1799.tmp\System.dll

            Filesize

            11KB

            MD5

            c17103ae9072a06da581dec998343fc1

            SHA1

            b72148c6bdfaada8b8c3f950e610ee7cf1da1f8d

            SHA256

            dc58d8ad81cacb0c1ed72e33bff8f23ea40b5252b5bb55d393a0903e6819ae2f

            SHA512

            d32a71aaef18e993f28096d536e41c4d016850721b31171513ce28bbd805a54fd290b7c3e9d935f72e676a1acfb4f0dcc89d95040a0dd29f2b6975855c18986f

          • \Users\Admin\AppData\Local\Temp\nst1799.tmp\nsExec.dll

            Filesize

            6KB

            MD5

            acc2b699edfea5bf5aae45aba3a41e96

            SHA1

            d2accf4d494e43ceb2cff69abe4dd17147d29cc2

            SHA256

            168a974eaa3f588d759db3f47c1a9fdc3494ba1fa1a73a84e5e3b2a4d58abd7e

            SHA512

            e29ea10ada98c71a18273b04f44f385b120d4e8473e441ce5748cfa44a23648814f2656f429b85440157988c88de776c6ac008dc38bf09cbb746c230a46c69fe

          • \Users\Admin\AppData\Local\Temp\nst1799.tmp\nsExec.dll

            Filesize

            6KB

            MD5

            acc2b699edfea5bf5aae45aba3a41e96

            SHA1

            d2accf4d494e43ceb2cff69abe4dd17147d29cc2

            SHA256

            168a974eaa3f588d759db3f47c1a9fdc3494ba1fa1a73a84e5e3b2a4d58abd7e

            SHA512

            e29ea10ada98c71a18273b04f44f385b120d4e8473e441ce5748cfa44a23648814f2656f429b85440157988c88de776c6ac008dc38bf09cbb746c230a46c69fe

          • \Users\Admin\AppData\Local\Temp\nst1799.tmp\nsExec.dll

            Filesize

            6KB

            MD5

            acc2b699edfea5bf5aae45aba3a41e96

            SHA1

            d2accf4d494e43ceb2cff69abe4dd17147d29cc2

            SHA256

            168a974eaa3f588d759db3f47c1a9fdc3494ba1fa1a73a84e5e3b2a4d58abd7e

            SHA512

            e29ea10ada98c71a18273b04f44f385b120d4e8473e441ce5748cfa44a23648814f2656f429b85440157988c88de776c6ac008dc38bf09cbb746c230a46c69fe

          • \Users\Admin\AppData\Local\Temp\nst1799.tmp\nsExec.dll

            Filesize

            6KB

            MD5

            acc2b699edfea5bf5aae45aba3a41e96

            SHA1

            d2accf4d494e43ceb2cff69abe4dd17147d29cc2

            SHA256

            168a974eaa3f588d759db3f47c1a9fdc3494ba1fa1a73a84e5e3b2a4d58abd7e

            SHA512

            e29ea10ada98c71a18273b04f44f385b120d4e8473e441ce5748cfa44a23648814f2656f429b85440157988c88de776c6ac008dc38bf09cbb746c230a46c69fe

          • \Windows\SysWOW64\hfnapi.dll

            Filesize

            106KB

            MD5

            2502e5dae7adcf22861d35961403a680

            SHA1

            66488dcbb7f2b5ccadbdced584c13d07fd01cc04

            SHA256

            6773d67532877da388e019c7e48878d1fde893099ede9ec57045d16778c08634

            SHA512

            76cf33edc852d6b9c691594db013da2daba9da6dfa81d69a6ef14e3784bcd0feaac202cf1792277a20c1f6dfd8156358e9ae246a8f649cc2a605cfe138fb3bb7

          • \Windows\SysWOW64\hfnapi.dll

            Filesize

            106KB

            MD5

            2502e5dae7adcf22861d35961403a680

            SHA1

            66488dcbb7f2b5ccadbdced584c13d07fd01cc04

            SHA256

            6773d67532877da388e019c7e48878d1fde893099ede9ec57045d16778c08634

            SHA512

            76cf33edc852d6b9c691594db013da2daba9da6dfa81d69a6ef14e3784bcd0feaac202cf1792277a20c1f6dfd8156358e9ae246a8f649cc2a605cfe138fb3bb7

          • \Windows\SysWOW64\hfnapi.dll

            Filesize

            106KB

            MD5

            2502e5dae7adcf22861d35961403a680

            SHA1

            66488dcbb7f2b5ccadbdced584c13d07fd01cc04

            SHA256

            6773d67532877da388e019c7e48878d1fde893099ede9ec57045d16778c08634

            SHA512

            76cf33edc852d6b9c691594db013da2daba9da6dfa81d69a6ef14e3784bcd0feaac202cf1792277a20c1f6dfd8156358e9ae246a8f649cc2a605cfe138fb3bb7

          • \Windows\SysWOW64\hfpapi.dll

            Filesize

            244KB

            MD5

            7efa6a221daaa75257b6449470c66d54

            SHA1

            5fc713ebc09e7af7a500eb0cc2a1c26e5b66487a

            SHA256

            43506c52e1ce778e57f1d1866e4c2f3c5400235020cc39921beac0bddbfb67fa

            SHA512

            894e120a73bb3448b0535509161b17636165ed754891fc4abcbe2417a38a1d4b985f6751154d2554103712a89abb4a1c3bb9eb0f698bb449ea3c4ae9ab1cdacb

          • \Windows\SysWOW64\hfpapi.dll

            Filesize

            244KB

            MD5

            7efa6a221daaa75257b6449470c66d54

            SHA1

            5fc713ebc09e7af7a500eb0cc2a1c26e5b66487a

            SHA256

            43506c52e1ce778e57f1d1866e4c2f3c5400235020cc39921beac0bddbfb67fa

            SHA512

            894e120a73bb3448b0535509161b17636165ed754891fc4abcbe2417a38a1d4b985f6751154d2554103712a89abb4a1c3bb9eb0f698bb449ea3c4ae9ab1cdacb

          • \Windows\SysWOW64\installd.exe

            Filesize

            108KB

            MD5

            bac0451451071bb01b3673a57fd22725

            SHA1

            27bccde323368a867a638f68ea114af799bb5fcf

            SHA256

            01a232dc90c33a1fc1c08c28caa9c7533329487b23db80642dcb67b4d6b71a6d

            SHA512

            695be69cf484b24c2c29abfdd23a042808be5a9e9ad851264072f4f76eac891d4bf7b4e7dc0edf812c7193eebfaf4591a2e7c155ad5974e34c6619f17d082e8b

          • \Windows\SysWOW64\nethtsrv.exe

            Filesize

            176KB

            MD5

            7fa42f6c1296c028315a7cef53105ee3

            SHA1

            2b37b3bb32ab6c520ffe9bc24121027c3e7c0005

            SHA256

            e0bd50d2f99114437252e2d4ed83de42c3acdb33f1e670f08491a1b8da0f12e0

            SHA512

            47cc73d10280307ab4adf012182970d4690d5beb6647aba498e966cc0414e695f38b3e85b64b00967865a16f5c79adc35c5815af32de45be4cdb2e11f125d42b

          • \Windows\SysWOW64\netupdsrv.exe

            Filesize

            159KB

            MD5

            1f20222c2dfbc5d9f1f9f320e545dda7

            SHA1

            24ab344972dd7749eb85529520aa97118a6fcfc8

            SHA256

            a5b2fe83e856952096d2ffba4a16e767cbec705b4f844eb1748451e528a2b182

            SHA512

            96f757987647c2f69904a3b5af199b04398514db621825e564b8807f5306ec0f594258f36131bce0022194ea942706b623f202b492666fa6362dd35b7da0934c

          • memory/576-71-0x0000000000000000-mapping.dmp

          • memory/588-62-0x0000000000000000-mapping.dmp

          • memory/768-64-0x0000000000000000-mapping.dmp

          • memory/852-81-0x0000000000000000-mapping.dmp

          • memory/948-88-0x0000000000000000-mapping.dmp

          • memory/1092-82-0x0000000000000000-mapping.dmp

          • memory/1128-61-0x0000000000000000-mapping.dmp

          • memory/1208-57-0x0000000000000000-mapping.dmp

          • memory/1812-87-0x0000000000000000-mapping.dmp

          • memory/1912-77-0x0000000000000000-mapping.dmp

          • memory/1972-58-0x0000000000000000-mapping.dmp

          • memory/2020-54-0x0000000075C21000-0x0000000075C23000-memory.dmp

            Filesize

            8KB

          • memory/2020-69-0x0000000000360000-0x00000000007BE000-memory.dmp

            Filesize

            4.4MB

          • memory/2020-59-0x0000000000360000-0x00000000007BE000-memory.dmp

            Filesize

            4.4MB

          • memory/2020-91-0x0000000000360000-0x00000000007BE000-memory.dmp

            Filesize

            4.4MB