Analysis

  • max time kernel
    36s
  • max time network
    44s
  • platform
    windows7_x64
  • resource
    win7-20220812-en
  • resource tags

    arch:x64arch:x86image:win7-20220812-enlocale:en-usos:windows7-x64system
  • submitted
    23-11-2022 10:35

General

  • Target

    027b14061de47592fa830ca44fa44db596a337b77d8b9345c7c13434aff02c73.exe

  • Size

    602KB

  • MD5

    568d1b4895455a08d9e52bd0288ffbff

  • SHA1

    44a4f118c5431ff7f64ed7c69e219efe7aa3c76c

  • SHA256

    027b14061de47592fa830ca44fa44db596a337b77d8b9345c7c13434aff02c73

  • SHA512

    a714d8b248ab43ab55a8d3d197cc1ecf56c0e5206fe4c9099ed454e57ea8411e97fee825f090f9426d3a85b37b0db4aa1b759a5a386b2c2b11880972842d9fff

  • SSDEEP

    12288:DIny5DYTjyT9qK7uriCq0ontT6obFjKJsd+ydxUbsbT2zf8W1S+iHI:LUTjyH7uriCqdnh60U+DUbg2zf87

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\027b14061de47592fa830ca44fa44db596a337b77d8b9345c7c13434aff02c73.exe
    "C:\Users\Admin\AppData\Local\Temp\027b14061de47592fa830ca44fa44db596a337b77d8b9345c7c13434aff02c73.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:1388
    • C:\Windows\SysWOW64\net.exe
      net stop nethttpservice
      2⤵
      • Suspicious use of WriteProcessMemory
      PID:1144
      • C:\Windows\SysWOW64\net1.exe
        C:\Windows\system32\net1 stop nethttpservice
        3⤵
          PID:1744
      • C:\Windows\SysWOW64\net.exe
        net stop serviceupdater
        2⤵
        • Suspicious use of WriteProcessMemory
        PID:1796
        • C:\Windows\SysWOW64\net1.exe
          C:\Windows\system32\net1 stop serviceupdater
          3⤵
            PID:1620
        • C:\Windows\SysWOW64\installd.exe
          "C:\Windows\system32\installd.exe" nethfdrv
          2⤵
          • Executes dropped EXE
          • Loads dropped DLL
          PID:1752
        • C:\Windows\SysWOW64\nethtsrv.exe
          "C:\Windows\system32\nethtsrv.exe" -nfdi
          2⤵
          • Executes dropped EXE
          • Loads dropped DLL
          PID:380
        • C:\Windows\SysWOW64\netupdsrv.exe
          "C:\Windows\system32\netupdsrv.exe" -nfdi
          2⤵
          • Executes dropped EXE
          PID:1844
        • C:\Windows\SysWOW64\net.exe
          net start nethttpservice
          2⤵
          • Suspicious use of WriteProcessMemory
          PID:1168
          • C:\Windows\SysWOW64\net1.exe
            C:\Windows\system32\net1 start nethttpservice
            3⤵
              PID:1320
          • C:\Windows\SysWOW64\net.exe
            net start serviceupdater
            2⤵
            • Suspicious use of WriteProcessMemory
            PID:1484
            • C:\Windows\SysWOW64\net1.exe
              C:\Windows\system32\net1 start serviceupdater
              3⤵
                PID:1052
          • C:\Windows\SysWOW64\nethtsrv.exe
            C:\Windows\SysWOW64\nethtsrv.exe
            1⤵
            • Executes dropped EXE
            • Loads dropped DLL
            • Suspicious use of AdjustPrivilegeToken
            PID:1512
          • C:\Windows\SysWOW64\netupdsrv.exe
            C:\Windows\SysWOW64\netupdsrv.exe
            1⤵
            • Executes dropped EXE
            PID:1364

          Network

          MITRE ATT&CK Enterprise v6

          Replay Monitor

          Loading Replay Monitor...

          Downloads

          • C:\Windows\SysWOW64\hfnapi.dll

            Filesize

            106KB

            MD5

            0ce6aa901dc0e4bcace6c0158f7653a9

            SHA1

            9ea90020d63fa8b9c184ec7540dc110ac9cddef9

            SHA256

            1448ae24bebe4b3119cc0dd7c64669da1499f054498d87f51966f983976bb9e5

            SHA512

            c98a76a320781c55c0bd5c001d09a20221387320c19af89652a099e2a7edb1ed5f5ab139f77e4856fdbb2b91cb06733e18de239755abc66e66c80b0c2924bda0

          • C:\Windows\SysWOW64\hfpapi.dll

            Filesize

            241KB

            MD5

            96eff169d20a03e77c9f56b754b3ef6f

            SHA1

            bff59966da2c4bf38d40c95b55ffd1367e5b6b8d

            SHA256

            bab35e90b6f30113c8a4076c36c269db0174cb74f5f66d2d9c0dd99f2741fba1

            SHA512

            cefa7a4f92380e26b4f0471db52b8b7a9de8a40acc50a852185c9c3ff503b226eae276cf7fa26a5652d670d9b8913b23ffcd6f965dc7ac3bcb630af04ab2bd16

          • C:\Windows\SysWOW64\installd.exe

            Filesize

            108KB

            MD5

            0c17c62323abaa69572023a46faeaa14

            SHA1

            15a01473df039afa730c7724e36c40b47b532648

            SHA256

            8755e8f540d300eb160d08cb5905f4b4d1a9b9074c654e07dbacf6125ebd2e77

            SHA512

            026962106a487295a7cfda02dce6966af2afb2b5445a3ad4679927da8abbbdec7ab650a4027862dea21cdde87f0cb0374eac975fd269d5a62ae068bc95fce9e8

          • C:\Windows\SysWOW64\nethtsrv.exe

            Filesize

            176KB

            MD5

            024bfbecace767da815df5234b941bda

            SHA1

            157ac55d3c76712af297e34a07211f8aeffea21f

            SHA256

            3d2724a090b749f03b1e6b172601cd871f3cea251b2c4b9daf055c1ea4dd73bd

            SHA512

            3ea461cc5a309c58f864829b04ea21f2e0fa677a21d37a2969d48eba33e2787e893f4eda857257213c325f478097885d3855c7b7a366a1777560bdbfde42c479

          • C:\Windows\SysWOW64\nethtsrv.exe

            Filesize

            176KB

            MD5

            024bfbecace767da815df5234b941bda

            SHA1

            157ac55d3c76712af297e34a07211f8aeffea21f

            SHA256

            3d2724a090b749f03b1e6b172601cd871f3cea251b2c4b9daf055c1ea4dd73bd

            SHA512

            3ea461cc5a309c58f864829b04ea21f2e0fa677a21d37a2969d48eba33e2787e893f4eda857257213c325f478097885d3855c7b7a366a1777560bdbfde42c479

          • C:\Windows\SysWOW64\netupdsrv.exe

            Filesize

            158KB

            MD5

            e059105e223169894af545086818bd9e

            SHA1

            f97cc17aeed63e750b24ceec36a2485eb0e58e01

            SHA256

            c5ab2d9e345a8c3ac951d0446fc7ba3c9fc2bc39966236e8ef8a8efcad0f9958

            SHA512

            6f7ee19d96c84f760b4aa02e0d05508976ec8571f2e176eea79e7c19478c9f69c07d0591cca9ae785174d2385b81e2f798131fad01093467ff86e65cf93a211c

          • C:\Windows\SysWOW64\netupdsrv.exe

            Filesize

            158KB

            MD5

            e059105e223169894af545086818bd9e

            SHA1

            f97cc17aeed63e750b24ceec36a2485eb0e58e01

            SHA256

            c5ab2d9e345a8c3ac951d0446fc7ba3c9fc2bc39966236e8ef8a8efcad0f9958

            SHA512

            6f7ee19d96c84f760b4aa02e0d05508976ec8571f2e176eea79e7c19478c9f69c07d0591cca9ae785174d2385b81e2f798131fad01093467ff86e65cf93a211c

          • \Users\Admin\AppData\Local\Temp\nso5332.tmp\System.dll

            Filesize

            11KB

            MD5

            c17103ae9072a06da581dec998343fc1

            SHA1

            b72148c6bdfaada8b8c3f950e610ee7cf1da1f8d

            SHA256

            dc58d8ad81cacb0c1ed72e33bff8f23ea40b5252b5bb55d393a0903e6819ae2f

            SHA512

            d32a71aaef18e993f28096d536e41c4d016850721b31171513ce28bbd805a54fd290b7c3e9d935f72e676a1acfb4f0dcc89d95040a0dd29f2b6975855c18986f

          • \Users\Admin\AppData\Local\Temp\nso5332.tmp\nsExec.dll

            Filesize

            6KB

            MD5

            acc2b699edfea5bf5aae45aba3a41e96

            SHA1

            d2accf4d494e43ceb2cff69abe4dd17147d29cc2

            SHA256

            168a974eaa3f588d759db3f47c1a9fdc3494ba1fa1a73a84e5e3b2a4d58abd7e

            SHA512

            e29ea10ada98c71a18273b04f44f385b120d4e8473e441ce5748cfa44a23648814f2656f429b85440157988c88de776c6ac008dc38bf09cbb746c230a46c69fe

          • \Users\Admin\AppData\Local\Temp\nso5332.tmp\nsExec.dll

            Filesize

            6KB

            MD5

            acc2b699edfea5bf5aae45aba3a41e96

            SHA1

            d2accf4d494e43ceb2cff69abe4dd17147d29cc2

            SHA256

            168a974eaa3f588d759db3f47c1a9fdc3494ba1fa1a73a84e5e3b2a4d58abd7e

            SHA512

            e29ea10ada98c71a18273b04f44f385b120d4e8473e441ce5748cfa44a23648814f2656f429b85440157988c88de776c6ac008dc38bf09cbb746c230a46c69fe

          • \Users\Admin\AppData\Local\Temp\nso5332.tmp\nsExec.dll

            Filesize

            6KB

            MD5

            acc2b699edfea5bf5aae45aba3a41e96

            SHA1

            d2accf4d494e43ceb2cff69abe4dd17147d29cc2

            SHA256

            168a974eaa3f588d759db3f47c1a9fdc3494ba1fa1a73a84e5e3b2a4d58abd7e

            SHA512

            e29ea10ada98c71a18273b04f44f385b120d4e8473e441ce5748cfa44a23648814f2656f429b85440157988c88de776c6ac008dc38bf09cbb746c230a46c69fe

          • \Users\Admin\AppData\Local\Temp\nso5332.tmp\nsExec.dll

            Filesize

            6KB

            MD5

            acc2b699edfea5bf5aae45aba3a41e96

            SHA1

            d2accf4d494e43ceb2cff69abe4dd17147d29cc2

            SHA256

            168a974eaa3f588d759db3f47c1a9fdc3494ba1fa1a73a84e5e3b2a4d58abd7e

            SHA512

            e29ea10ada98c71a18273b04f44f385b120d4e8473e441ce5748cfa44a23648814f2656f429b85440157988c88de776c6ac008dc38bf09cbb746c230a46c69fe

          • \Windows\SysWOW64\hfnapi.dll

            Filesize

            106KB

            MD5

            0ce6aa901dc0e4bcace6c0158f7653a9

            SHA1

            9ea90020d63fa8b9c184ec7540dc110ac9cddef9

            SHA256

            1448ae24bebe4b3119cc0dd7c64669da1499f054498d87f51966f983976bb9e5

            SHA512

            c98a76a320781c55c0bd5c001d09a20221387320c19af89652a099e2a7edb1ed5f5ab139f77e4856fdbb2b91cb06733e18de239755abc66e66c80b0c2924bda0

          • \Windows\SysWOW64\hfnapi.dll

            Filesize

            106KB

            MD5

            0ce6aa901dc0e4bcace6c0158f7653a9

            SHA1

            9ea90020d63fa8b9c184ec7540dc110ac9cddef9

            SHA256

            1448ae24bebe4b3119cc0dd7c64669da1499f054498d87f51966f983976bb9e5

            SHA512

            c98a76a320781c55c0bd5c001d09a20221387320c19af89652a099e2a7edb1ed5f5ab139f77e4856fdbb2b91cb06733e18de239755abc66e66c80b0c2924bda0

          • \Windows\SysWOW64\hfnapi.dll

            Filesize

            106KB

            MD5

            0ce6aa901dc0e4bcace6c0158f7653a9

            SHA1

            9ea90020d63fa8b9c184ec7540dc110ac9cddef9

            SHA256

            1448ae24bebe4b3119cc0dd7c64669da1499f054498d87f51966f983976bb9e5

            SHA512

            c98a76a320781c55c0bd5c001d09a20221387320c19af89652a099e2a7edb1ed5f5ab139f77e4856fdbb2b91cb06733e18de239755abc66e66c80b0c2924bda0

          • \Windows\SysWOW64\hfpapi.dll

            Filesize

            241KB

            MD5

            96eff169d20a03e77c9f56b754b3ef6f

            SHA1

            bff59966da2c4bf38d40c95b55ffd1367e5b6b8d

            SHA256

            bab35e90b6f30113c8a4076c36c269db0174cb74f5f66d2d9c0dd99f2741fba1

            SHA512

            cefa7a4f92380e26b4f0471db52b8b7a9de8a40acc50a852185c9c3ff503b226eae276cf7fa26a5652d670d9b8913b23ffcd6f965dc7ac3bcb630af04ab2bd16

          • \Windows\SysWOW64\hfpapi.dll

            Filesize

            241KB

            MD5

            96eff169d20a03e77c9f56b754b3ef6f

            SHA1

            bff59966da2c4bf38d40c95b55ffd1367e5b6b8d

            SHA256

            bab35e90b6f30113c8a4076c36c269db0174cb74f5f66d2d9c0dd99f2741fba1

            SHA512

            cefa7a4f92380e26b4f0471db52b8b7a9de8a40acc50a852185c9c3ff503b226eae276cf7fa26a5652d670d9b8913b23ffcd6f965dc7ac3bcb630af04ab2bd16

          • \Windows\SysWOW64\installd.exe

            Filesize

            108KB

            MD5

            0c17c62323abaa69572023a46faeaa14

            SHA1

            15a01473df039afa730c7724e36c40b47b532648

            SHA256

            8755e8f540d300eb160d08cb5905f4b4d1a9b9074c654e07dbacf6125ebd2e77

            SHA512

            026962106a487295a7cfda02dce6966af2afb2b5445a3ad4679927da8abbbdec7ab650a4027862dea21cdde87f0cb0374eac975fd269d5a62ae068bc95fce9e8

          • \Windows\SysWOW64\nethtsrv.exe

            Filesize

            176KB

            MD5

            024bfbecace767da815df5234b941bda

            SHA1

            157ac55d3c76712af297e34a07211f8aeffea21f

            SHA256

            3d2724a090b749f03b1e6b172601cd871f3cea251b2c4b9daf055c1ea4dd73bd

            SHA512

            3ea461cc5a309c58f864829b04ea21f2e0fa677a21d37a2969d48eba33e2787e893f4eda857257213c325f478097885d3855c7b7a366a1777560bdbfde42c479

          • \Windows\SysWOW64\netupdsrv.exe

            Filesize

            158KB

            MD5

            e059105e223169894af545086818bd9e

            SHA1

            f97cc17aeed63e750b24ceec36a2485eb0e58e01

            SHA256

            c5ab2d9e345a8c3ac951d0446fc7ba3c9fc2bc39966236e8ef8a8efcad0f9958

            SHA512

            6f7ee19d96c84f760b4aa02e0d05508976ec8571f2e176eea79e7c19478c9f69c07d0591cca9ae785174d2385b81e2f798131fad01093467ff86e65cf93a211c

          • memory/380-70-0x0000000000000000-mapping.dmp

          • memory/1052-87-0x0000000000000000-mapping.dmp

          • memory/1144-58-0x0000000000000000-mapping.dmp

          • memory/1168-80-0x0000000000000000-mapping.dmp

          • memory/1320-81-0x0000000000000000-mapping.dmp

          • memory/1388-54-0x00000000768A1000-0x00000000768A3000-memory.dmp

            Filesize

            8KB

          • memory/1388-55-0x0000000000360000-0x00000000007BE000-memory.dmp

            Filesize

            4.4MB

          • memory/1388-90-0x0000000000360000-0x00000000007BE000-memory.dmp

            Filesize

            4.4MB

          • memory/1484-86-0x0000000000000000-mapping.dmp

          • memory/1620-62-0x0000000000000000-mapping.dmp

          • memory/1744-59-0x0000000000000000-mapping.dmp

          • memory/1752-64-0x0000000000000000-mapping.dmp

          • memory/1796-61-0x0000000000000000-mapping.dmp

          • memory/1844-76-0x0000000000000000-mapping.dmp