Analysis

  • max time kernel
    13s
  • max time network
    49s
  • platform
    windows7_x64
  • resource
    win7-20220812-en
  • resource tags

    arch:x64arch:x86image:win7-20220812-enlocale:en-usos:windows7-x64system
  • submitted
    23/11/2022, 23:26

General

  • Target

    4353b5a5033fc2a0be4d08f6a56e0bcfe7eadf4b01c811b2622b4b816121ab22.exe

  • Size

    561KB

  • MD5

    bdd571a8aa83528e248394dd79e23386

  • SHA1

    fd7e435ceca61d7496147b8be633b29b68d2d638

  • SHA256

    4353b5a5033fc2a0be4d08f6a56e0bcfe7eadf4b01c811b2622b4b816121ab22

  • SHA512

    8fc38d5bd7a2156cc31bd922a7038fc6db7df595c50badf88454493af9da39d42fcca56e617cfae37edd3ed317f3e6e5c0063d01897595de01b5d563b94544c5

  • SSDEEP

    12288:tPRYzEbf45UlYlWI9Ly0d290U5GXKl5kS0j2noe61XvRq4QzkLU:0zwfKXbY0d9Unl5kSsPZ

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\4353b5a5033fc2a0be4d08f6a56e0bcfe7eadf4b01c811b2622b4b816121ab22.exe
    "C:\Users\Admin\AppData\Local\Temp\4353b5a5033fc2a0be4d08f6a56e0bcfe7eadf4b01c811b2622b4b816121ab22.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:912
    • C:\Windows\SysWOW64\net.exe
      net stop nethttpservice
      2⤵
      • Suspicious use of WriteProcessMemory
      PID:856
      • C:\Windows\SysWOW64\net1.exe
        C:\Windows\system32\net1 stop nethttpservice
        3⤵
          PID:1268
      • C:\Windows\SysWOW64\net.exe
        net stop serviceupdater
        2⤵
        • Suspicious use of WriteProcessMemory
        PID:1324
        • C:\Windows\SysWOW64\net1.exe
          C:\Windows\system32\net1 stop serviceupdater
          3⤵
            PID:1140
        • C:\Windows\SysWOW64\installd.exe
          "C:\Windows\system32\installd.exe" nethfdrv
          2⤵
          • Executes dropped EXE
          • Loads dropped DLL
          PID:388
        • C:\Windows\SysWOW64\nethtsrv.exe
          "C:\Windows\system32\nethtsrv.exe" -nfdi
          2⤵
          • Executes dropped EXE
          • Loads dropped DLL
          PID:828
        • 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:1496
          • C:\Windows\SysWOW64\net1.exe
            C:\Windows\system32\net1 start nethttpservice
            3⤵
              PID:1736
          • C:\Windows\SysWOW64\net.exe
            net start serviceupdater
            2⤵
            • Suspicious use of WriteProcessMemory
            PID:1364
            • C:\Windows\SysWOW64\net1.exe
              C:\Windows\system32\net1 start serviceupdater
              3⤵
                PID:1560
          • C:\Windows\SysWOW64\nethtsrv.exe
            C:\Windows\SysWOW64\nethtsrv.exe
            1⤵
            • Executes dropped EXE
            • Loads dropped DLL
            • Suspicious use of AdjustPrivilegeToken
            PID:1508
          • C:\Windows\SysWOW64\netupdsrv.exe
            C:\Windows\SysWOW64\netupdsrv.exe
            1⤵
            • Executes dropped EXE
            PID:1996

          Network

                MITRE ATT&CK Enterprise v6

                Replay Monitor

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                Downloads

                • C:\Windows\SysWOW64\hfnapi.dll

                  Filesize

                  106KB

                  MD5

                  02c6123ac8cc2605e7ebd89533411788

                  SHA1

                  dfd001a7d490ba9a86aea080f17354555727eda8

                  SHA256

                  897ea3f760a09435040e196b2691cb312469531faca3a8f24327d0ad679b2067

                  SHA512

                  41582dee05f82fe138fd5228ded68c4ab6758922534bd2744753940f000f0e9d9567bc1926e645660ec27c4a0b832725d1f055b16019d37e677a32d7e328639b

                • C:\Windows\SysWOW64\hfpapi.dll

                  Filesize

                  241KB

                  MD5

                  65c8e506858e54ee3101d01d9d40a3a3

                  SHA1

                  f227ffe4aef8acd0b36c4141631bab812d83268c

                  SHA256

                  8454710f0f3f9f2bdb29052aae687286ec1870b5a6729060b1d8814af1303074

                  SHA512

                  f6719f222fdc18025b5aaeae532b82b1fef70cef4014c9cb38f4775b622818d5d7565ff0e3523cefd71709fc2c45ace73884bb5871d197e869e704eff01f5287

                • C:\Windows\SysWOW64\installd.exe

                  Filesize

                  108KB

                  MD5

                  b0e701f4183291368ecb93af0fac9472

                  SHA1

                  128f7a29c79950ffa00df818b19ff10ca675a26d

                  SHA256

                  977e95c3080697109e169d80deaa70b51aa77bd68d59d6a4055dacdb5dbf3bb4

                  SHA512

                  87b8cc0b41ea117e8c4792971d05e213771d691ce6254dbc70a7bde8f0ddba716e766f3c7b1c4fac45b0f7c8e14040ba238244aa50c63db155dcc832ba7dc164

                • C:\Windows\SysWOW64\nethtsrv.exe

                  Filesize

                  176KB

                  MD5

                  b620d7e10404e7b6ef1df970736be0cc

                  SHA1

                  7e04e9eaac644b6ab944647c03d045229190f3ad

                  SHA256

                  9f38388c2e8255417f3713baf3f9e168774706d6513324f417fcb8c0d2d97067

                  SHA512

                  c0602eeca9864edd059c170c9297c55d8c3809ca1cfa54598bf4bf10ca4ec95a05b85a68ba4702d11bb0376f50166177b5470bc78b8086dcf693e486a49b2988

                • C:\Windows\SysWOW64\nethtsrv.exe

                  Filesize

                  176KB

                  MD5

                  b620d7e10404e7b6ef1df970736be0cc

                  SHA1

                  7e04e9eaac644b6ab944647c03d045229190f3ad

                  SHA256

                  9f38388c2e8255417f3713baf3f9e168774706d6513324f417fcb8c0d2d97067

                  SHA512

                  c0602eeca9864edd059c170c9297c55d8c3809ca1cfa54598bf4bf10ca4ec95a05b85a68ba4702d11bb0376f50166177b5470bc78b8086dcf693e486a49b2988

                • C:\Windows\SysWOW64\netupdsrv.exe

                  Filesize

                  158KB

                  MD5

                  c024873f77de93e21de7192f02b0cce8

                  SHA1

                  3115dd3b82057d78b792355ee50f8b5f942fc7f0

                  SHA256

                  616fc4deb48ff0aa51dca6ccf32fbf0eb5e31090c0d57c7369f8c1c08b6f92a6

                  SHA512

                  0acc5275e488db5fa002b6179c43b8d6babbd1655f7ba74092f738abce654c6c89a92cc75de72ea2c6214361f5f4e67c1a9f0dcfd774c6becd830108fb9f8e1c

                • C:\Windows\SysWOW64\netupdsrv.exe

                  Filesize

                  158KB

                  MD5

                  c024873f77de93e21de7192f02b0cce8

                  SHA1

                  3115dd3b82057d78b792355ee50f8b5f942fc7f0

                  SHA256

                  616fc4deb48ff0aa51dca6ccf32fbf0eb5e31090c0d57c7369f8c1c08b6f92a6

                  SHA512

                  0acc5275e488db5fa002b6179c43b8d6babbd1655f7ba74092f738abce654c6c89a92cc75de72ea2c6214361f5f4e67c1a9f0dcfd774c6becd830108fb9f8e1c

                • \Users\Admin\AppData\Local\Temp\nsy65B8.tmp\System.dll

                  Filesize

                  11KB

                  MD5

                  c17103ae9072a06da581dec998343fc1

                  SHA1

                  b72148c6bdfaada8b8c3f950e610ee7cf1da1f8d

                  SHA256

                  dc58d8ad81cacb0c1ed72e33bff8f23ea40b5252b5bb55d393a0903e6819ae2f

                  SHA512

                  d32a71aaef18e993f28096d536e41c4d016850721b31171513ce28bbd805a54fd290b7c3e9d935f72e676a1acfb4f0dcc89d95040a0dd29f2b6975855c18986f

                • \Users\Admin\AppData\Local\Temp\nsy65B8.tmp\nsExec.dll

                  Filesize

                  6KB

                  MD5

                  acc2b699edfea5bf5aae45aba3a41e96

                  SHA1

                  d2accf4d494e43ceb2cff69abe4dd17147d29cc2

                  SHA256

                  168a974eaa3f588d759db3f47c1a9fdc3494ba1fa1a73a84e5e3b2a4d58abd7e

                  SHA512

                  e29ea10ada98c71a18273b04f44f385b120d4e8473e441ce5748cfa44a23648814f2656f429b85440157988c88de776c6ac008dc38bf09cbb746c230a46c69fe

                • \Users\Admin\AppData\Local\Temp\nsy65B8.tmp\nsExec.dll

                  Filesize

                  6KB

                  MD5

                  acc2b699edfea5bf5aae45aba3a41e96

                  SHA1

                  d2accf4d494e43ceb2cff69abe4dd17147d29cc2

                  SHA256

                  168a974eaa3f588d759db3f47c1a9fdc3494ba1fa1a73a84e5e3b2a4d58abd7e

                  SHA512

                  e29ea10ada98c71a18273b04f44f385b120d4e8473e441ce5748cfa44a23648814f2656f429b85440157988c88de776c6ac008dc38bf09cbb746c230a46c69fe

                • \Users\Admin\AppData\Local\Temp\nsy65B8.tmp\nsExec.dll

                  Filesize

                  6KB

                  MD5

                  acc2b699edfea5bf5aae45aba3a41e96

                  SHA1

                  d2accf4d494e43ceb2cff69abe4dd17147d29cc2

                  SHA256

                  168a974eaa3f588d759db3f47c1a9fdc3494ba1fa1a73a84e5e3b2a4d58abd7e

                  SHA512

                  e29ea10ada98c71a18273b04f44f385b120d4e8473e441ce5748cfa44a23648814f2656f429b85440157988c88de776c6ac008dc38bf09cbb746c230a46c69fe

                • \Users\Admin\AppData\Local\Temp\nsy65B8.tmp\nsExec.dll

                  Filesize

                  6KB

                  MD5

                  acc2b699edfea5bf5aae45aba3a41e96

                  SHA1

                  d2accf4d494e43ceb2cff69abe4dd17147d29cc2

                  SHA256

                  168a974eaa3f588d759db3f47c1a9fdc3494ba1fa1a73a84e5e3b2a4d58abd7e

                  SHA512

                  e29ea10ada98c71a18273b04f44f385b120d4e8473e441ce5748cfa44a23648814f2656f429b85440157988c88de776c6ac008dc38bf09cbb746c230a46c69fe

                • \Windows\SysWOW64\hfnapi.dll

                  Filesize

                  106KB

                  MD5

                  02c6123ac8cc2605e7ebd89533411788

                  SHA1

                  dfd001a7d490ba9a86aea080f17354555727eda8

                  SHA256

                  897ea3f760a09435040e196b2691cb312469531faca3a8f24327d0ad679b2067

                  SHA512

                  41582dee05f82fe138fd5228ded68c4ab6758922534bd2744753940f000f0e9d9567bc1926e645660ec27c4a0b832725d1f055b16019d37e677a32d7e328639b

                • \Windows\SysWOW64\hfnapi.dll

                  Filesize

                  106KB

                  MD5

                  02c6123ac8cc2605e7ebd89533411788

                  SHA1

                  dfd001a7d490ba9a86aea080f17354555727eda8

                  SHA256

                  897ea3f760a09435040e196b2691cb312469531faca3a8f24327d0ad679b2067

                  SHA512

                  41582dee05f82fe138fd5228ded68c4ab6758922534bd2744753940f000f0e9d9567bc1926e645660ec27c4a0b832725d1f055b16019d37e677a32d7e328639b

                • \Windows\SysWOW64\hfnapi.dll

                  Filesize

                  106KB

                  MD5

                  02c6123ac8cc2605e7ebd89533411788

                  SHA1

                  dfd001a7d490ba9a86aea080f17354555727eda8

                  SHA256

                  897ea3f760a09435040e196b2691cb312469531faca3a8f24327d0ad679b2067

                  SHA512

                  41582dee05f82fe138fd5228ded68c4ab6758922534bd2744753940f000f0e9d9567bc1926e645660ec27c4a0b832725d1f055b16019d37e677a32d7e328639b

                • \Windows\SysWOW64\hfpapi.dll

                  Filesize

                  241KB

                  MD5

                  65c8e506858e54ee3101d01d9d40a3a3

                  SHA1

                  f227ffe4aef8acd0b36c4141631bab812d83268c

                  SHA256

                  8454710f0f3f9f2bdb29052aae687286ec1870b5a6729060b1d8814af1303074

                  SHA512

                  f6719f222fdc18025b5aaeae532b82b1fef70cef4014c9cb38f4775b622818d5d7565ff0e3523cefd71709fc2c45ace73884bb5871d197e869e704eff01f5287

                • \Windows\SysWOW64\hfpapi.dll

                  Filesize

                  241KB

                  MD5

                  65c8e506858e54ee3101d01d9d40a3a3

                  SHA1

                  f227ffe4aef8acd0b36c4141631bab812d83268c

                  SHA256

                  8454710f0f3f9f2bdb29052aae687286ec1870b5a6729060b1d8814af1303074

                  SHA512

                  f6719f222fdc18025b5aaeae532b82b1fef70cef4014c9cb38f4775b622818d5d7565ff0e3523cefd71709fc2c45ace73884bb5871d197e869e704eff01f5287

                • \Windows\SysWOW64\installd.exe

                  Filesize

                  108KB

                  MD5

                  b0e701f4183291368ecb93af0fac9472

                  SHA1

                  128f7a29c79950ffa00df818b19ff10ca675a26d

                  SHA256

                  977e95c3080697109e169d80deaa70b51aa77bd68d59d6a4055dacdb5dbf3bb4

                  SHA512

                  87b8cc0b41ea117e8c4792971d05e213771d691ce6254dbc70a7bde8f0ddba716e766f3c7b1c4fac45b0f7c8e14040ba238244aa50c63db155dcc832ba7dc164

                • \Windows\SysWOW64\nethtsrv.exe

                  Filesize

                  176KB

                  MD5

                  b620d7e10404e7b6ef1df970736be0cc

                  SHA1

                  7e04e9eaac644b6ab944647c03d045229190f3ad

                  SHA256

                  9f38388c2e8255417f3713baf3f9e168774706d6513324f417fcb8c0d2d97067

                  SHA512

                  c0602eeca9864edd059c170c9297c55d8c3809ca1cfa54598bf4bf10ca4ec95a05b85a68ba4702d11bb0376f50166177b5470bc78b8086dcf693e486a49b2988

                • \Windows\SysWOW64\netupdsrv.exe

                  Filesize

                  158KB

                  MD5

                  c024873f77de93e21de7192f02b0cce8

                  SHA1

                  3115dd3b82057d78b792355ee50f8b5f942fc7f0

                  SHA256

                  616fc4deb48ff0aa51dca6ccf32fbf0eb5e31090c0d57c7369f8c1c08b6f92a6

                  SHA512

                  0acc5275e488db5fa002b6179c43b8d6babbd1655f7ba74092f738abce654c6c89a92cc75de72ea2c6214361f5f4e67c1a9f0dcfd774c6becd830108fb9f8e1c

                • memory/912-90-0x0000000000360000-0x00000000007BE000-memory.dmp

                  Filesize

                  4.4MB

                • memory/912-59-0x0000000000360000-0x00000000007BE000-memory.dmp

                  Filesize

                  4.4MB

                • memory/912-54-0x0000000076091000-0x0000000076093000-memory.dmp

                  Filesize

                  8KB