Analysis

  • max time kernel
    157s
  • max time network
    164s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20221111-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20221111-enlocale:en-usos:windows10-2004-x64system
  • submitted
    22-11-2022 00:19

General

  • Target

    d1ca0a53f6ff8c3bb08ee241210b8726b0ace7be0ceb30c2329e3fe926ca69fa.exe

  • Size

    695KB

  • MD5

    b46df381c1e39215b49cf896f1848f60

  • SHA1

    c54c3bc9a07b0260cc6dfcfb515e9531d6477eb6

  • SHA256

    d1ca0a53f6ff8c3bb08ee241210b8726b0ace7be0ceb30c2329e3fe926ca69fa

  • SHA512

    5b54f49c659f0e103cce8b4b60d7358a1baeac006c2102ea0fb7970262e48325055e91102d17013043dec93fbe0ce5bd3546fa75192998b844c4d93ac256cf1a

  • SSDEEP

    12288:7Abu3fQ+thk6EzvbfHOpPR9mJoDzScV/i7WhLXzA3e0+aJwb54z6e//djJZNOk77:7AbuPPEzzfITmyDxa7SDA3ewJwaz6e9j

Score
8/10

Malware Config

Signatures

  • Drops file in Drivers directory 1 IoCs
  • Executes dropped EXE 5 IoCs
  • Loads dropped DLL 14 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.

  • Modifies data under HKEY_USERS 1 IoCs
  • Runs net.exe
  • Suspicious behavior: LoadsDriver 1 IoCs
  • Suspicious use of AdjustPrivilegeToken 1 IoCs
  • Suspicious use of WriteProcessMemory 33 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\d1ca0a53f6ff8c3bb08ee241210b8726b0ace7be0ceb30c2329e3fe926ca69fa.exe
    "C:\Users\Admin\AppData\Local\Temp\d1ca0a53f6ff8c3bb08ee241210b8726b0ace7be0ceb30c2329e3fe926ca69fa.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:1060
    • C:\Windows\SysWOW64\net.exe
      net stop nethttpservice
      2⤵
      • Suspicious use of WriteProcessMemory
      PID:2708
      • C:\Windows\SysWOW64\net1.exe
        C:\Windows\system32\net1 stop nethttpservice
        3⤵
          PID:1860
      • C:\Windows\SysWOW64\net.exe
        net stop serviceupdater
        2⤵
        • Suspicious use of WriteProcessMemory
        PID:1356
        • C:\Windows\SysWOW64\net1.exe
          C:\Windows\system32\net1 stop serviceupdater
          3⤵
            PID:4148
        • C:\Windows\SysWOW64\installd.exe
          "C:\Windows\system32\installd.exe" nethfdrv
          2⤵
          • Executes dropped EXE
          • Loads dropped DLL
          PID:4312
        • C:\Windows\SysWOW64\nethtsrv.exe
          "C:\Windows\system32\nethtsrv.exe" -nfdi
          2⤵
          • Executes dropped EXE
          • Loads dropped DLL
          PID:2696
        • C:\Windows\SysWOW64\netupdsrv.exe
          "C:\Windows\system32\netupdsrv.exe" -nfdi
          2⤵
          • Executes dropped EXE
          PID:1824
        • C:\Windows\SysWOW64\net.exe
          net start nethttpservice
          2⤵
          • Suspicious use of WriteProcessMemory
          PID:2848
          • C:\Windows\SysWOW64\net1.exe
            C:\Windows\system32\net1 start nethttpservice
            3⤵
              PID:440
          • C:\Windows\SysWOW64\net.exe
            net start serviceupdater
            2⤵
            • Suspicious use of WriteProcessMemory
            PID:64
            • C:\Windows\SysWOW64\net1.exe
              C:\Windows\system32\net1 start serviceupdater
              3⤵
                PID:972
          • C:\Windows\SysWOW64\nethtsrv.exe
            C:\Windows\SysWOW64\nethtsrv.exe
            1⤵
            • Executes dropped EXE
            • Loads dropped DLL
            • Modifies data under HKEY_USERS
            • Suspicious use of AdjustPrivilegeToken
            PID:4628
          • C:\Windows\SysWOW64\netupdsrv.exe
            C:\Windows\SysWOW64\netupdsrv.exe
            1⤵
            • Executes dropped EXE
            PID:1908

          Network

          MITRE ATT&CK Enterprise v6

          Replay Monitor

          Loading Replay Monitor...

          Downloads

          • C:\Users\Admin\AppData\Local\Temp\nsyDE12.tmp\System.dll

            Filesize

            11KB

            MD5

            c17103ae9072a06da581dec998343fc1

            SHA1

            b72148c6bdfaada8b8c3f950e610ee7cf1da1f8d

            SHA256

            dc58d8ad81cacb0c1ed72e33bff8f23ea40b5252b5bb55d393a0903e6819ae2f

            SHA512

            d32a71aaef18e993f28096d536e41c4d016850721b31171513ce28bbd805a54fd290b7c3e9d935f72e676a1acfb4f0dcc89d95040a0dd29f2b6975855c18986f

          • C:\Users\Admin\AppData\Local\Temp\nsyDE12.tmp\nsExec.dll

            Filesize

            6KB

            MD5

            acc2b699edfea5bf5aae45aba3a41e96

            SHA1

            d2accf4d494e43ceb2cff69abe4dd17147d29cc2

            SHA256

            168a974eaa3f588d759db3f47c1a9fdc3494ba1fa1a73a84e5e3b2a4d58abd7e

            SHA512

            e29ea10ada98c71a18273b04f44f385b120d4e8473e441ce5748cfa44a23648814f2656f429b85440157988c88de776c6ac008dc38bf09cbb746c230a46c69fe

          • C:\Users\Admin\AppData\Local\Temp\nsyDE12.tmp\nsExec.dll

            Filesize

            6KB

            MD5

            acc2b699edfea5bf5aae45aba3a41e96

            SHA1

            d2accf4d494e43ceb2cff69abe4dd17147d29cc2

            SHA256

            168a974eaa3f588d759db3f47c1a9fdc3494ba1fa1a73a84e5e3b2a4d58abd7e

            SHA512

            e29ea10ada98c71a18273b04f44f385b120d4e8473e441ce5748cfa44a23648814f2656f429b85440157988c88de776c6ac008dc38bf09cbb746c230a46c69fe

          • C:\Users\Admin\AppData\Local\Temp\nsyDE12.tmp\nsExec.dll

            Filesize

            6KB

            MD5

            acc2b699edfea5bf5aae45aba3a41e96

            SHA1

            d2accf4d494e43ceb2cff69abe4dd17147d29cc2

            SHA256

            168a974eaa3f588d759db3f47c1a9fdc3494ba1fa1a73a84e5e3b2a4d58abd7e

            SHA512

            e29ea10ada98c71a18273b04f44f385b120d4e8473e441ce5748cfa44a23648814f2656f429b85440157988c88de776c6ac008dc38bf09cbb746c230a46c69fe

          • C:\Users\Admin\AppData\Local\Temp\nsyDE12.tmp\nsExec.dll

            Filesize

            6KB

            MD5

            acc2b699edfea5bf5aae45aba3a41e96

            SHA1

            d2accf4d494e43ceb2cff69abe4dd17147d29cc2

            SHA256

            168a974eaa3f588d759db3f47c1a9fdc3494ba1fa1a73a84e5e3b2a4d58abd7e

            SHA512

            e29ea10ada98c71a18273b04f44f385b120d4e8473e441ce5748cfa44a23648814f2656f429b85440157988c88de776c6ac008dc38bf09cbb746c230a46c69fe

          • C:\Users\Admin\AppData\Local\Temp\nsyDE12.tmp\nsExec.dll

            Filesize

            6KB

            MD5

            acc2b699edfea5bf5aae45aba3a41e96

            SHA1

            d2accf4d494e43ceb2cff69abe4dd17147d29cc2

            SHA256

            168a974eaa3f588d759db3f47c1a9fdc3494ba1fa1a73a84e5e3b2a4d58abd7e

            SHA512

            e29ea10ada98c71a18273b04f44f385b120d4e8473e441ce5748cfa44a23648814f2656f429b85440157988c88de776c6ac008dc38bf09cbb746c230a46c69fe

          • C:\Users\Admin\AppData\Local\Temp\nsyDE12.tmp\nsExec.dll

            Filesize

            6KB

            MD5

            acc2b699edfea5bf5aae45aba3a41e96

            SHA1

            d2accf4d494e43ceb2cff69abe4dd17147d29cc2

            SHA256

            168a974eaa3f588d759db3f47c1a9fdc3494ba1fa1a73a84e5e3b2a4d58abd7e

            SHA512

            e29ea10ada98c71a18273b04f44f385b120d4e8473e441ce5748cfa44a23648814f2656f429b85440157988c88de776c6ac008dc38bf09cbb746c230a46c69fe

          • C:\Users\Admin\AppData\Local\Temp\nsyDE12.tmp\nsExec.dll

            Filesize

            6KB

            MD5

            acc2b699edfea5bf5aae45aba3a41e96

            SHA1

            d2accf4d494e43ceb2cff69abe4dd17147d29cc2

            SHA256

            168a974eaa3f588d759db3f47c1a9fdc3494ba1fa1a73a84e5e3b2a4d58abd7e

            SHA512

            e29ea10ada98c71a18273b04f44f385b120d4e8473e441ce5748cfa44a23648814f2656f429b85440157988c88de776c6ac008dc38bf09cbb746c230a46c69fe

          • C:\Users\Admin\AppData\Local\Temp\nsyDE12.tmp\nsExec.dll

            Filesize

            6KB

            MD5

            acc2b699edfea5bf5aae45aba3a41e96

            SHA1

            d2accf4d494e43ceb2cff69abe4dd17147d29cc2

            SHA256

            168a974eaa3f588d759db3f47c1a9fdc3494ba1fa1a73a84e5e3b2a4d58abd7e

            SHA512

            e29ea10ada98c71a18273b04f44f385b120d4e8473e441ce5748cfa44a23648814f2656f429b85440157988c88de776c6ac008dc38bf09cbb746c230a46c69fe

          • C:\Windows\SysWOW64\hfnapi.dll

            Filesize

            106KB

            MD5

            5c1e4857f8248de2d98b5a6b55e46cc7

            SHA1

            689d1710d30018c3bc0c22465bed9fd1f44a6035

            SHA256

            6501a769c090e79cacab6bb45d563fa00d2f7512bc4c728f7a1fe786608714cc

            SHA512

            35f500441877428453c1ad86d5db2f4a11b986278835e85c429d1781273cfdafa1ed647ffeb01cce7148594ca0ac8b4234ccf66ab403f5036be9c2a6565e7056

          • C:\Windows\SysWOW64\hfnapi.dll

            Filesize

            106KB

            MD5

            5c1e4857f8248de2d98b5a6b55e46cc7

            SHA1

            689d1710d30018c3bc0c22465bed9fd1f44a6035

            SHA256

            6501a769c090e79cacab6bb45d563fa00d2f7512bc4c728f7a1fe786608714cc

            SHA512

            35f500441877428453c1ad86d5db2f4a11b986278835e85c429d1781273cfdafa1ed647ffeb01cce7148594ca0ac8b4234ccf66ab403f5036be9c2a6565e7056

          • C:\Windows\SysWOW64\hfnapi.dll

            Filesize

            106KB

            MD5

            5c1e4857f8248de2d98b5a6b55e46cc7

            SHA1

            689d1710d30018c3bc0c22465bed9fd1f44a6035

            SHA256

            6501a769c090e79cacab6bb45d563fa00d2f7512bc4c728f7a1fe786608714cc

            SHA512

            35f500441877428453c1ad86d5db2f4a11b986278835e85c429d1781273cfdafa1ed647ffeb01cce7148594ca0ac8b4234ccf66ab403f5036be9c2a6565e7056

          • C:\Windows\SysWOW64\hfnapi.dll

            Filesize

            106KB

            MD5

            5c1e4857f8248de2d98b5a6b55e46cc7

            SHA1

            689d1710d30018c3bc0c22465bed9fd1f44a6035

            SHA256

            6501a769c090e79cacab6bb45d563fa00d2f7512bc4c728f7a1fe786608714cc

            SHA512

            35f500441877428453c1ad86d5db2f4a11b986278835e85c429d1781273cfdafa1ed647ffeb01cce7148594ca0ac8b4234ccf66ab403f5036be9c2a6565e7056

          • C:\Windows\SysWOW64\hfpapi.dll

            Filesize

            241KB

            MD5

            a3f83f85755a471ecd4b45d67943ee8d

            SHA1

            20a56f48ac59c4b7b3a4cd9cc793967327fcbe7d

            SHA256

            5240e9c4d4c36516727598e63c9d9c57e8729300d2d8678ea0bc9bf26aa01d47

            SHA512

            e79189a58946136ad4e8d621ad48cbeb1b04e6e16e7babec5e14613ae69e08913cef2bad27ac73c1f79197eb87f09c065d7c6a3934d639b5de60da240f62bc90

          • C:\Windows\SysWOW64\hfpapi.dll

            Filesize

            241KB

            MD5

            a3f83f85755a471ecd4b45d67943ee8d

            SHA1

            20a56f48ac59c4b7b3a4cd9cc793967327fcbe7d

            SHA256

            5240e9c4d4c36516727598e63c9d9c57e8729300d2d8678ea0bc9bf26aa01d47

            SHA512

            e79189a58946136ad4e8d621ad48cbeb1b04e6e16e7babec5e14613ae69e08913cef2bad27ac73c1f79197eb87f09c065d7c6a3934d639b5de60da240f62bc90

          • C:\Windows\SysWOW64\hfpapi.dll

            Filesize

            241KB

            MD5

            a3f83f85755a471ecd4b45d67943ee8d

            SHA1

            20a56f48ac59c4b7b3a4cd9cc793967327fcbe7d

            SHA256

            5240e9c4d4c36516727598e63c9d9c57e8729300d2d8678ea0bc9bf26aa01d47

            SHA512

            e79189a58946136ad4e8d621ad48cbeb1b04e6e16e7babec5e14613ae69e08913cef2bad27ac73c1f79197eb87f09c065d7c6a3934d639b5de60da240f62bc90

          • C:\Windows\SysWOW64\installd.exe

            Filesize

            108KB

            MD5

            187267fe843c72612a35079603573f08

            SHA1

            3584a45d083c9c26743b531e80fccaf8e9ee2803

            SHA256

            f80d4ab44cbdf098583fb0606e448d9e1d37be548ff99716143698ce883a66ce

            SHA512

            286342172c4793ad28dfe391e64b08e8e56781319e399d0e144240d4a6c66e143faac7bd9d8a505dc1a1c96e6a6cb496325e889e1c52dfb48e634ffcc6f5adfa

          • C:\Windows\SysWOW64\installd.exe

            Filesize

            108KB

            MD5

            187267fe843c72612a35079603573f08

            SHA1

            3584a45d083c9c26743b531e80fccaf8e9ee2803

            SHA256

            f80d4ab44cbdf098583fb0606e448d9e1d37be548ff99716143698ce883a66ce

            SHA512

            286342172c4793ad28dfe391e64b08e8e56781319e399d0e144240d4a6c66e143faac7bd9d8a505dc1a1c96e6a6cb496325e889e1c52dfb48e634ffcc6f5adfa

          • C:\Windows\SysWOW64\nethtsrv.exe

            Filesize

            176KB

            MD5

            fb082fe68891b0dfedb6010331613f3c

            SHA1

            1d48b766a223f641e8ca959282750ebaf1c66995

            SHA256

            cf1956d51c3335dcc54ef8ee057fe7f916eeda8a86c03976d43a3f0190b23c8e

            SHA512

            4849ffdd4c4b4f4005e0cf18b9c53df4eb160a02e16d830878f3053961b79605102cc2d202ed31bb6261f7d091d469db407a56bba207c178700d55660660d419

          • C:\Windows\SysWOW64\nethtsrv.exe

            Filesize

            176KB

            MD5

            fb082fe68891b0dfedb6010331613f3c

            SHA1

            1d48b766a223f641e8ca959282750ebaf1c66995

            SHA256

            cf1956d51c3335dcc54ef8ee057fe7f916eeda8a86c03976d43a3f0190b23c8e

            SHA512

            4849ffdd4c4b4f4005e0cf18b9c53df4eb160a02e16d830878f3053961b79605102cc2d202ed31bb6261f7d091d469db407a56bba207c178700d55660660d419

          • C:\Windows\SysWOW64\nethtsrv.exe

            Filesize

            176KB

            MD5

            fb082fe68891b0dfedb6010331613f3c

            SHA1

            1d48b766a223f641e8ca959282750ebaf1c66995

            SHA256

            cf1956d51c3335dcc54ef8ee057fe7f916eeda8a86c03976d43a3f0190b23c8e

            SHA512

            4849ffdd4c4b4f4005e0cf18b9c53df4eb160a02e16d830878f3053961b79605102cc2d202ed31bb6261f7d091d469db407a56bba207c178700d55660660d419

          • C:\Windows\SysWOW64\netupdsrv.exe

            Filesize

            159KB

            MD5

            d8c1878216ea4c68a4dffc02d47aed77

            SHA1

            de697ebbeeae2b07d2a6317583effdaaf07d14e9

            SHA256

            d5afc4dfd56daf3505ad646647a7e734b8da70ac46738dbc71a2ebdd7215100d

            SHA512

            8f95e1d90cf86a73553be87d3300dccef06423ae5a763b772cc4047f5cf51f19764c57981af39e9094b4280dc668a0efae8b2b343350b439b609fcca4af8030f

          • C:\Windows\SysWOW64\netupdsrv.exe

            Filesize

            159KB

            MD5

            d8c1878216ea4c68a4dffc02d47aed77

            SHA1

            de697ebbeeae2b07d2a6317583effdaaf07d14e9

            SHA256

            d5afc4dfd56daf3505ad646647a7e734b8da70ac46738dbc71a2ebdd7215100d

            SHA512

            8f95e1d90cf86a73553be87d3300dccef06423ae5a763b772cc4047f5cf51f19764c57981af39e9094b4280dc668a0efae8b2b343350b439b609fcca4af8030f

          • C:\Windows\SysWOW64\netupdsrv.exe

            Filesize

            159KB

            MD5

            d8c1878216ea4c68a4dffc02d47aed77

            SHA1

            de697ebbeeae2b07d2a6317583effdaaf07d14e9

            SHA256

            d5afc4dfd56daf3505ad646647a7e734b8da70ac46738dbc71a2ebdd7215100d

            SHA512

            8f95e1d90cf86a73553be87d3300dccef06423ae5a763b772cc4047f5cf51f19764c57981af39e9094b4280dc668a0efae8b2b343350b439b609fcca4af8030f

          • memory/64-165-0x0000000000000000-mapping.dmp

          • memory/440-159-0x0000000000000000-mapping.dmp

          • memory/972-166-0x0000000000000000-mapping.dmp

          • memory/1060-136-0x0000000000340000-0x00000000007BE000-memory.dmp

            Filesize

            4.5MB

          • memory/1060-168-0x0000000000340000-0x00000000007BE000-memory.dmp

            Filesize

            4.5MB

          • memory/1356-140-0x0000000000000000-mapping.dmp

          • memory/1824-153-0x0000000000000000-mapping.dmp

          • memory/1860-137-0x0000000000000000-mapping.dmp

          • memory/2696-147-0x0000000000000000-mapping.dmp

          • memory/2708-135-0x0000000000000000-mapping.dmp

          • memory/2848-158-0x0000000000000000-mapping.dmp

          • memory/4148-141-0x0000000000000000-mapping.dmp

          • memory/4312-142-0x0000000000000000-mapping.dmp