Analysis

  • max time kernel
    62s
  • max time network
    33s
  • platform
    windows7_x64
  • resource
    win7-20221111-en
  • resource tags

    arch:x64arch:x86image:win7-20221111-enlocale:en-usos:windows7-x64system
  • submitted
    23-11-2022 10:22

General

  • Target

    74697c576baba097185c2c9d98da6809a63ee9520167ebb16a52ca787d4d3948.exe

  • Size

    603KB

  • MD5

    5a06214bf5acb5a31e5c5e1438ee292a

  • SHA1

    7caae8ae7ccba4d18b2dbc19a9426c12b25ab7d6

  • SHA256

    74697c576baba097185c2c9d98da6809a63ee9520167ebb16a52ca787d4d3948

  • SHA512

    602f612a03fc75cddb0709bbf4ccb6067dff183328d792179e7d136ee09955b920d284f135b7783ab3c32e732631447bf464bcbcc75615f16d691d391ac7efb1

  • SSDEEP

    12288:EIny5DYTmIUmpuqA6y5A2Es/mWLU9jHkTlW9+j3q9odUzKD1b:iUTmfmpXTkFAxE3t+mD9

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\74697c576baba097185c2c9d98da6809a63ee9520167ebb16a52ca787d4d3948.exe
    "C:\Users\Admin\AppData\Local\Temp\74697c576baba097185c2c9d98da6809a63ee9520167ebb16a52ca787d4d3948.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:1748
    • C:\Windows\SysWOW64\net.exe
      net stop nethttpservice
      2⤵
      • Suspicious use of WriteProcessMemory
      PID:952
      • C:\Windows\SysWOW64\net1.exe
        C:\Windows\system32\net1 stop nethttpservice
        3⤵
          PID:1788
      • C:\Windows\SysWOW64\net.exe
        net stop serviceupdater
        2⤵
        • Suspicious use of WriteProcessMemory
        PID:1456
        • C:\Windows\SysWOW64\net1.exe
          C:\Windows\system32\net1 stop serviceupdater
          3⤵
            PID:524
        • C:\Windows\SysWOW64\installd.exe
          "C:\Windows\system32\installd.exe" nethfdrv
          2⤵
          • Executes dropped EXE
          • Loads dropped DLL
          PID:568
        • C:\Windows\SysWOW64\nethtsrv.exe
          "C:\Windows\system32\nethtsrv.exe" -nfdi
          2⤵
          • Executes dropped EXE
          • Loads dropped DLL
          PID:1968
        • C:\Windows\SysWOW64\netupdsrv.exe
          "C:\Windows\system32\netupdsrv.exe" -nfdi
          2⤵
          • Executes dropped EXE
          PID:1332
        • C:\Windows\SysWOW64\net.exe
          net start nethttpservice
          2⤵
          • Suspicious use of WriteProcessMemory
          PID:1036
          • C:\Windows\SysWOW64\net1.exe
            C:\Windows\system32\net1 start nethttpservice
            3⤵
              PID:1528
          • C:\Windows\SysWOW64\net.exe
            net start serviceupdater
            2⤵
            • Suspicious use of WriteProcessMemory
            PID:1068
            • C:\Windows\SysWOW64\net1.exe
              C:\Windows\system32\net1 start serviceupdater
              3⤵
                PID:1828
          • C:\Windows\SysWOW64\nethtsrv.exe
            C:\Windows\SysWOW64\nethtsrv.exe
            1⤵
            • Executes dropped EXE
            • Loads dropped DLL
            • Suspicious use of AdjustPrivilegeToken
            PID:1812
          • C:\Windows\SysWOW64\netupdsrv.exe
            C:\Windows\SysWOW64\netupdsrv.exe
            1⤵
            • Executes dropped EXE
            PID:1048

          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

            f19a24cc9041cf29e2022c1ce5850978

            SHA1

            71932b1b5c1557e530e26a2c10131cc83177b6f5

            SHA256

            4fe3e73d26df81195083cfe5f3c59d847c660f43b09dfcf860e590f4bf3fa461

            SHA512

            2ef8ef92d165e80ee33157ec8a9b4addfbcb3dc1f29993415df1cb3a2ea2e3d08c935dce4a9fe4744541ddb94a624e77fb5388074e6aca7cdc2e6c0da883e2ab

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

            244KB

            MD5

            999896a18bb5aa6077827b5f220f31c6

            SHA1

            d23857cb3539bf940a374fa499a93b8321c855c9

            SHA256

            08dc6871f11fc82f5b9394a499038f828c16c50eb13863220740ec440f946070

            SHA512

            b2673a8f825c5cc75d02aebc9669260175d6e9ff5c46938302914a61a7fb4c5512ad526c1ce228e08bb30c254599a5892acee9da2a2c62de629fe42c4d92fde3

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

            108KB

            MD5

            d960c0749858712dfcca7d18a868c29d

            SHA1

            38cd4473fdb87c587c5bfcd7d50f25174f51fb7c

            SHA256

            eda323c3f3ec6f01df19848f4fcb248d7ffc19bb2f40692420e3482f7cfc2047

            SHA512

            c945cfd3bdfb04bbd837740c21cf1efb9f978aa0600b6f4b3d85fef0906e25fe09610d7408d06f3c0e5e4d69f20e5074c66a138a62201ee811d49402d23841ef

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

            176KB

            MD5

            9947733db1c709c580462e7f69fceae5

            SHA1

            3e4835d5da817bbc1ad0e2310b1425c6ef7df2ac

            SHA256

            0b76fdd4770badf39f1201aa789cd91b7a468698099a7dd27dc62d34674502d5

            SHA512

            3dd50b828be736b63bf2136bf25c9710f41a21270afb6fb65d07657cf6c26e6c29de5b4bbdea35f2caeff66043c486d1912ac87d7b93b63879b15d90bdcf1211

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

            176KB

            MD5

            9947733db1c709c580462e7f69fceae5

            SHA1

            3e4835d5da817bbc1ad0e2310b1425c6ef7df2ac

            SHA256

            0b76fdd4770badf39f1201aa789cd91b7a468698099a7dd27dc62d34674502d5

            SHA512

            3dd50b828be736b63bf2136bf25c9710f41a21270afb6fb65d07657cf6c26e6c29de5b4bbdea35f2caeff66043c486d1912ac87d7b93b63879b15d90bdcf1211

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

            158KB

            MD5

            a8e636e94fdabd48faab6eb148a0d950

            SHA1

            6402c71957b283cdf6bfb8f30d8d9f5fdd7834ed

            SHA256

            0b7a85abc02b9b50cdc08b07fae16645ed996990c57e30909cace92ffc136871

            SHA512

            58b92ebbca6bc40839b4a6c82c9d28ccb367348481078aa214a7d4dcb908cc45bd6c6cf2b2604b023f3a92543e1e54c32ca79829970fb1757d746ed1061b1059

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

            158KB

            MD5

            a8e636e94fdabd48faab6eb148a0d950

            SHA1

            6402c71957b283cdf6bfb8f30d8d9f5fdd7834ed

            SHA256

            0b7a85abc02b9b50cdc08b07fae16645ed996990c57e30909cace92ffc136871

            SHA512

            58b92ebbca6bc40839b4a6c82c9d28ccb367348481078aa214a7d4dcb908cc45bd6c6cf2b2604b023f3a92543e1e54c32ca79829970fb1757d746ed1061b1059

          • \Users\Admin\AppData\Local\Temp\nseA586.tmp\System.dll
            Filesize

            11KB

            MD5

            c17103ae9072a06da581dec998343fc1

            SHA1

            b72148c6bdfaada8b8c3f950e610ee7cf1da1f8d

            SHA256

            dc58d8ad81cacb0c1ed72e33bff8f23ea40b5252b5bb55d393a0903e6819ae2f

            SHA512

            d32a71aaef18e993f28096d536e41c4d016850721b31171513ce28bbd805a54fd290b7c3e9d935f72e676a1acfb4f0dcc89d95040a0dd29f2b6975855c18986f

          • \Users\Admin\AppData\Local\Temp\nseA586.tmp\nsExec.dll
            Filesize

            6KB

            MD5

            acc2b699edfea5bf5aae45aba3a41e96

            SHA1

            d2accf4d494e43ceb2cff69abe4dd17147d29cc2

            SHA256

            168a974eaa3f588d759db3f47c1a9fdc3494ba1fa1a73a84e5e3b2a4d58abd7e

            SHA512

            e29ea10ada98c71a18273b04f44f385b120d4e8473e441ce5748cfa44a23648814f2656f429b85440157988c88de776c6ac008dc38bf09cbb746c230a46c69fe

          • \Users\Admin\AppData\Local\Temp\nseA586.tmp\nsExec.dll
            Filesize

            6KB

            MD5

            acc2b699edfea5bf5aae45aba3a41e96

            SHA1

            d2accf4d494e43ceb2cff69abe4dd17147d29cc2

            SHA256

            168a974eaa3f588d759db3f47c1a9fdc3494ba1fa1a73a84e5e3b2a4d58abd7e

            SHA512

            e29ea10ada98c71a18273b04f44f385b120d4e8473e441ce5748cfa44a23648814f2656f429b85440157988c88de776c6ac008dc38bf09cbb746c230a46c69fe

          • \Users\Admin\AppData\Local\Temp\nseA586.tmp\nsExec.dll
            Filesize

            6KB

            MD5

            acc2b699edfea5bf5aae45aba3a41e96

            SHA1

            d2accf4d494e43ceb2cff69abe4dd17147d29cc2

            SHA256

            168a974eaa3f588d759db3f47c1a9fdc3494ba1fa1a73a84e5e3b2a4d58abd7e

            SHA512

            e29ea10ada98c71a18273b04f44f385b120d4e8473e441ce5748cfa44a23648814f2656f429b85440157988c88de776c6ac008dc38bf09cbb746c230a46c69fe

          • \Users\Admin\AppData\Local\Temp\nseA586.tmp\nsExec.dll
            Filesize

            6KB

            MD5

            acc2b699edfea5bf5aae45aba3a41e96

            SHA1

            d2accf4d494e43ceb2cff69abe4dd17147d29cc2

            SHA256

            168a974eaa3f588d759db3f47c1a9fdc3494ba1fa1a73a84e5e3b2a4d58abd7e

            SHA512

            e29ea10ada98c71a18273b04f44f385b120d4e8473e441ce5748cfa44a23648814f2656f429b85440157988c88de776c6ac008dc38bf09cbb746c230a46c69fe

          • \Windows\SysWOW64\hfnapi.dll
            Filesize

            106KB

            MD5

            f19a24cc9041cf29e2022c1ce5850978

            SHA1

            71932b1b5c1557e530e26a2c10131cc83177b6f5

            SHA256

            4fe3e73d26df81195083cfe5f3c59d847c660f43b09dfcf860e590f4bf3fa461

            SHA512

            2ef8ef92d165e80ee33157ec8a9b4addfbcb3dc1f29993415df1cb3a2ea2e3d08c935dce4a9fe4744541ddb94a624e77fb5388074e6aca7cdc2e6c0da883e2ab

          • \Windows\SysWOW64\hfnapi.dll
            Filesize

            106KB

            MD5

            f19a24cc9041cf29e2022c1ce5850978

            SHA1

            71932b1b5c1557e530e26a2c10131cc83177b6f5

            SHA256

            4fe3e73d26df81195083cfe5f3c59d847c660f43b09dfcf860e590f4bf3fa461

            SHA512

            2ef8ef92d165e80ee33157ec8a9b4addfbcb3dc1f29993415df1cb3a2ea2e3d08c935dce4a9fe4744541ddb94a624e77fb5388074e6aca7cdc2e6c0da883e2ab

          • \Windows\SysWOW64\hfnapi.dll
            Filesize

            106KB

            MD5

            f19a24cc9041cf29e2022c1ce5850978

            SHA1

            71932b1b5c1557e530e26a2c10131cc83177b6f5

            SHA256

            4fe3e73d26df81195083cfe5f3c59d847c660f43b09dfcf860e590f4bf3fa461

            SHA512

            2ef8ef92d165e80ee33157ec8a9b4addfbcb3dc1f29993415df1cb3a2ea2e3d08c935dce4a9fe4744541ddb94a624e77fb5388074e6aca7cdc2e6c0da883e2ab

          • \Windows\SysWOW64\hfpapi.dll
            Filesize

            244KB

            MD5

            999896a18bb5aa6077827b5f220f31c6

            SHA1

            d23857cb3539bf940a374fa499a93b8321c855c9

            SHA256

            08dc6871f11fc82f5b9394a499038f828c16c50eb13863220740ec440f946070

            SHA512

            b2673a8f825c5cc75d02aebc9669260175d6e9ff5c46938302914a61a7fb4c5512ad526c1ce228e08bb30c254599a5892acee9da2a2c62de629fe42c4d92fde3

          • \Windows\SysWOW64\hfpapi.dll
            Filesize

            244KB

            MD5

            999896a18bb5aa6077827b5f220f31c6

            SHA1

            d23857cb3539bf940a374fa499a93b8321c855c9

            SHA256

            08dc6871f11fc82f5b9394a499038f828c16c50eb13863220740ec440f946070

            SHA512

            b2673a8f825c5cc75d02aebc9669260175d6e9ff5c46938302914a61a7fb4c5512ad526c1ce228e08bb30c254599a5892acee9da2a2c62de629fe42c4d92fde3

          • \Windows\SysWOW64\installd.exe
            Filesize

            108KB

            MD5

            d960c0749858712dfcca7d18a868c29d

            SHA1

            38cd4473fdb87c587c5bfcd7d50f25174f51fb7c

            SHA256

            eda323c3f3ec6f01df19848f4fcb248d7ffc19bb2f40692420e3482f7cfc2047

            SHA512

            c945cfd3bdfb04bbd837740c21cf1efb9f978aa0600b6f4b3d85fef0906e25fe09610d7408d06f3c0e5e4d69f20e5074c66a138a62201ee811d49402d23841ef

          • \Windows\SysWOW64\nethtsrv.exe
            Filesize

            176KB

            MD5

            9947733db1c709c580462e7f69fceae5

            SHA1

            3e4835d5da817bbc1ad0e2310b1425c6ef7df2ac

            SHA256

            0b76fdd4770badf39f1201aa789cd91b7a468698099a7dd27dc62d34674502d5

            SHA512

            3dd50b828be736b63bf2136bf25c9710f41a21270afb6fb65d07657cf6c26e6c29de5b4bbdea35f2caeff66043c486d1912ac87d7b93b63879b15d90bdcf1211

          • \Windows\SysWOW64\netupdsrv.exe
            Filesize

            158KB

            MD5

            a8e636e94fdabd48faab6eb148a0d950

            SHA1

            6402c71957b283cdf6bfb8f30d8d9f5fdd7834ed

            SHA256

            0b7a85abc02b9b50cdc08b07fae16645ed996990c57e30909cace92ffc136871

            SHA512

            58b92ebbca6bc40839b4a6c82c9d28ccb367348481078aa214a7d4dcb908cc45bd6c6cf2b2604b023f3a92543e1e54c32ca79829970fb1757d746ed1061b1059

          • memory/524-62-0x0000000000000000-mapping.dmp
          • memory/568-64-0x0000000000000000-mapping.dmp
          • memory/952-58-0x0000000000000000-mapping.dmp
          • memory/1036-81-0x0000000000000000-mapping.dmp
          • memory/1068-87-0x0000000000000000-mapping.dmp
          • memory/1332-77-0x0000000000000000-mapping.dmp
          • memory/1456-61-0x0000000000000000-mapping.dmp
          • memory/1528-82-0x0000000000000000-mapping.dmp
          • memory/1748-69-0x0000000000360000-0x00000000007BE000-memory.dmp
            Filesize

            4.4MB

          • memory/1748-54-0x0000000075631000-0x0000000075633000-memory.dmp
            Filesize

            8KB

          • memory/1748-55-0x0000000000360000-0x00000000007BE000-memory.dmp
            Filesize

            4.4MB

          • memory/1748-91-0x0000000000360000-0x00000000007BE000-memory.dmp
            Filesize

            4.4MB

          • memory/1788-59-0x0000000000000000-mapping.dmp
          • memory/1828-88-0x0000000000000000-mapping.dmp
          • memory/1968-71-0x0000000000000000-mapping.dmp