Analysis

  • max time kernel
    42s
  • max time network
    34s
  • platform
    windows7_x64
  • resource
    win7-20221111-en
  • resource tags

    arch:x64arch:x86image:win7-20221111-enlocale:en-usos:windows7-x64system
  • submitted
    23-11-2022 10:16

General

  • Target

    a68852bd6f3eb0f486ec1930d7851d8f16bf343bd0a1601b993624bbaafcb206.exe

  • Size

    602KB

  • MD5

    7239f10b78b42697f4653624322100f8

  • SHA1

    2e0eb0fac73ff4ba8373081c5ea74a15a3972fe4

  • SHA256

    a68852bd6f3eb0f486ec1930d7851d8f16bf343bd0a1601b993624bbaafcb206

  • SHA512

    bb2dcfd91c5c4906c5a3181b5ba3ffac5d729bf443c8d0ca21d68386dcf7fba19f235dc9213852af1e12de702ca3fc9bb1a4a6745cf49c1e69f9a5c0d139c42a

  • SSDEEP

    12288:mIny5DYTkL6Fm8OdMapzH1Uzy6oGKBdT6DLIHSudoRjOt:IUTTgtdMa11SUGG6wHSHG

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\a68852bd6f3eb0f486ec1930d7851d8f16bf343bd0a1601b993624bbaafcb206.exe
    "C:\Users\Admin\AppData\Local\Temp\a68852bd6f3eb0f486ec1930d7851d8f16bf343bd0a1601b993624bbaafcb206.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:2024
    • C:\Windows\SysWOW64\net.exe
      net stop nethttpservice
      2⤵
      • Suspicious use of WriteProcessMemory
      PID:1992
      • C:\Windows\SysWOW64\net1.exe
        C:\Windows\system32\net1 stop nethttpservice
        3⤵
          PID:1112
      • C:\Windows\SysWOW64\net.exe
        net stop serviceupdater
        2⤵
        • Suspicious use of WriteProcessMemory
        PID:860
        • C:\Windows\SysWOW64\net1.exe
          C:\Windows\system32\net1 stop serviceupdater
          3⤵
            PID:776
        • C:\Windows\SysWOW64\installd.exe
          "C:\Windows\system32\installd.exe" nethfdrv
          2⤵
          • Executes dropped EXE
          • Loads dropped DLL
          PID:1228
        • 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:1056
        • C:\Windows\SysWOW64\net.exe
          net start nethttpservice
          2⤵
          • Suspicious use of WriteProcessMemory
          PID:992
          • C:\Windows\SysWOW64\net1.exe
            C:\Windows\system32\net1 start nethttpservice
            3⤵
              PID:1636
          • 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:1908
          • C:\Windows\SysWOW64\nethtsrv.exe
            C:\Windows\SysWOW64\nethtsrv.exe
            1⤵
            • Executes dropped EXE
            • Loads dropped DLL
            • Suspicious use of AdjustPrivilegeToken
            PID:1156
          • C:\Windows\SysWOW64\netupdsrv.exe
            C:\Windows\SysWOW64\netupdsrv.exe
            1⤵
            • Executes dropped EXE
            PID:948

          Network

          MITRE ATT&CK Enterprise v6

          Replay Monitor

          Loading Replay Monitor...

          Downloads

          • C:\Windows\SysWOW64\hfnapi.dll

            Filesize

            106KB

            MD5

            363623d1a52f89430f97a57365781d39

            SHA1

            98600df89e7a4acc9ef1d7b49745024f202d5a62

            SHA256

            2ff18b370776c32960bb1bdcec09429d9a0a581b29619a46aa2e60b42b3fe201

            SHA512

            f2261e37a90db613ab59e80b30f224221999799b07d19ed816d28a90a781016685db69d89ffa965e33a1e7a4dc018b98376acbdb27b539e663b42d0e07875cb3

          • C:\Windows\SysWOW64\hfpapi.dll

            Filesize

            241KB

            MD5

            c077bda36ad7ad3d453ec62d6eca45e2

            SHA1

            d02866501cc9cf41be09da8baff00e95c488d17a

            SHA256

            024bd1d4b877cb1f749851a7f8b803d7e4ee181962cbec37b1416bf5cf680e9a

            SHA512

            685982cd98fe8a36f092b0da50fc1046102104f37db965c4ba4115dcec9d4646711da0ffb1205e6aa6fd108c8c0986daff1d5ef3bf3b414da272325e7e6e68ef

          • C:\Windows\SysWOW64\installd.exe

            Filesize

            108KB

            MD5

            90836769fec87e147bab5ae42da6e68a

            SHA1

            39a3784a15a6f2311f23519075764cd7ecfbfe4c

            SHA256

            dd1da53d3e9eb0b3bf85514be735146051bf299323aebf7b99f41b5f5bb2646a

            SHA512

            1dfafc841956a75aeade805b9734f98d4244704e4d31539fbc021eec3041c4f7460d3b920954c56c18969b4207424fbd285b4706d550b2885ab77e5067e5c656

          • C:\Windows\SysWOW64\nethtsrv.exe

            Filesize

            176KB

            MD5

            f9e14fff604f0d483c905366768077a6

            SHA1

            8a51ee1ffc83eb091898b8724e97ff09698656ae

            SHA256

            175fb1a1481693e7e2ea665fcb29a58a9f365515c402ea5d1da8a90320c73276

            SHA512

            a02d2c2eb1f2a1504e83368caf674b822dc9526ac69e263678ebcf11c43ac0a2a7d2bfb9a83d206ec2740d05ae3a2ba782da8f9bd4785e4afc9b22a70b7f3243

          • C:\Windows\SysWOW64\nethtsrv.exe

            Filesize

            176KB

            MD5

            f9e14fff604f0d483c905366768077a6

            SHA1

            8a51ee1ffc83eb091898b8724e97ff09698656ae

            SHA256

            175fb1a1481693e7e2ea665fcb29a58a9f365515c402ea5d1da8a90320c73276

            SHA512

            a02d2c2eb1f2a1504e83368caf674b822dc9526ac69e263678ebcf11c43ac0a2a7d2bfb9a83d206ec2740d05ae3a2ba782da8f9bd4785e4afc9b22a70b7f3243

          • C:\Windows\SysWOW64\netupdsrv.exe

            Filesize

            158KB

            MD5

            94f744a2316a29c173b545e9e0ec3804

            SHA1

            cc6c120055ec713ceadec403ab42cd97a86e4439

            SHA256

            adca5050acb1d304726030e3ed6824061fab36e35439a9027d47eb3c04d7e7dc

            SHA512

            5845f342dafc53bef7e5ce8dd955affe2b0633048f6466597624c5a1c334e0e1b4c01d69e1fe049a333eac8e83e9ffdfdafc06aa98daf44d5f36bd372d411498

          • C:\Windows\SysWOW64\netupdsrv.exe

            Filesize

            158KB

            MD5

            94f744a2316a29c173b545e9e0ec3804

            SHA1

            cc6c120055ec713ceadec403ab42cd97a86e4439

            SHA256

            adca5050acb1d304726030e3ed6824061fab36e35439a9027d47eb3c04d7e7dc

            SHA512

            5845f342dafc53bef7e5ce8dd955affe2b0633048f6466597624c5a1c334e0e1b4c01d69e1fe049a333eac8e83e9ffdfdafc06aa98daf44d5f36bd372d411498

          • \Users\Admin\AppData\Local\Temp\nsy1BAE.tmp\System.dll

            Filesize

            11KB

            MD5

            c17103ae9072a06da581dec998343fc1

            SHA1

            b72148c6bdfaada8b8c3f950e610ee7cf1da1f8d

            SHA256

            dc58d8ad81cacb0c1ed72e33bff8f23ea40b5252b5bb55d393a0903e6819ae2f

            SHA512

            d32a71aaef18e993f28096d536e41c4d016850721b31171513ce28bbd805a54fd290b7c3e9d935f72e676a1acfb4f0dcc89d95040a0dd29f2b6975855c18986f

          • \Users\Admin\AppData\Local\Temp\nsy1BAE.tmp\nsExec.dll

            Filesize

            6KB

            MD5

            acc2b699edfea5bf5aae45aba3a41e96

            SHA1

            d2accf4d494e43ceb2cff69abe4dd17147d29cc2

            SHA256

            168a974eaa3f588d759db3f47c1a9fdc3494ba1fa1a73a84e5e3b2a4d58abd7e

            SHA512

            e29ea10ada98c71a18273b04f44f385b120d4e8473e441ce5748cfa44a23648814f2656f429b85440157988c88de776c6ac008dc38bf09cbb746c230a46c69fe

          • \Users\Admin\AppData\Local\Temp\nsy1BAE.tmp\nsExec.dll

            Filesize

            6KB

            MD5

            acc2b699edfea5bf5aae45aba3a41e96

            SHA1

            d2accf4d494e43ceb2cff69abe4dd17147d29cc2

            SHA256

            168a974eaa3f588d759db3f47c1a9fdc3494ba1fa1a73a84e5e3b2a4d58abd7e

            SHA512

            e29ea10ada98c71a18273b04f44f385b120d4e8473e441ce5748cfa44a23648814f2656f429b85440157988c88de776c6ac008dc38bf09cbb746c230a46c69fe

          • \Users\Admin\AppData\Local\Temp\nsy1BAE.tmp\nsExec.dll

            Filesize

            6KB

            MD5

            acc2b699edfea5bf5aae45aba3a41e96

            SHA1

            d2accf4d494e43ceb2cff69abe4dd17147d29cc2

            SHA256

            168a974eaa3f588d759db3f47c1a9fdc3494ba1fa1a73a84e5e3b2a4d58abd7e

            SHA512

            e29ea10ada98c71a18273b04f44f385b120d4e8473e441ce5748cfa44a23648814f2656f429b85440157988c88de776c6ac008dc38bf09cbb746c230a46c69fe

          • \Users\Admin\AppData\Local\Temp\nsy1BAE.tmp\nsExec.dll

            Filesize

            6KB

            MD5

            acc2b699edfea5bf5aae45aba3a41e96

            SHA1

            d2accf4d494e43ceb2cff69abe4dd17147d29cc2

            SHA256

            168a974eaa3f588d759db3f47c1a9fdc3494ba1fa1a73a84e5e3b2a4d58abd7e

            SHA512

            e29ea10ada98c71a18273b04f44f385b120d4e8473e441ce5748cfa44a23648814f2656f429b85440157988c88de776c6ac008dc38bf09cbb746c230a46c69fe

          • \Windows\SysWOW64\hfnapi.dll

            Filesize

            106KB

            MD5

            363623d1a52f89430f97a57365781d39

            SHA1

            98600df89e7a4acc9ef1d7b49745024f202d5a62

            SHA256

            2ff18b370776c32960bb1bdcec09429d9a0a581b29619a46aa2e60b42b3fe201

            SHA512

            f2261e37a90db613ab59e80b30f224221999799b07d19ed816d28a90a781016685db69d89ffa965e33a1e7a4dc018b98376acbdb27b539e663b42d0e07875cb3

          • \Windows\SysWOW64\hfnapi.dll

            Filesize

            106KB

            MD5

            363623d1a52f89430f97a57365781d39

            SHA1

            98600df89e7a4acc9ef1d7b49745024f202d5a62

            SHA256

            2ff18b370776c32960bb1bdcec09429d9a0a581b29619a46aa2e60b42b3fe201

            SHA512

            f2261e37a90db613ab59e80b30f224221999799b07d19ed816d28a90a781016685db69d89ffa965e33a1e7a4dc018b98376acbdb27b539e663b42d0e07875cb3

          • \Windows\SysWOW64\hfnapi.dll

            Filesize

            106KB

            MD5

            363623d1a52f89430f97a57365781d39

            SHA1

            98600df89e7a4acc9ef1d7b49745024f202d5a62

            SHA256

            2ff18b370776c32960bb1bdcec09429d9a0a581b29619a46aa2e60b42b3fe201

            SHA512

            f2261e37a90db613ab59e80b30f224221999799b07d19ed816d28a90a781016685db69d89ffa965e33a1e7a4dc018b98376acbdb27b539e663b42d0e07875cb3

          • \Windows\SysWOW64\hfpapi.dll

            Filesize

            241KB

            MD5

            c077bda36ad7ad3d453ec62d6eca45e2

            SHA1

            d02866501cc9cf41be09da8baff00e95c488d17a

            SHA256

            024bd1d4b877cb1f749851a7f8b803d7e4ee181962cbec37b1416bf5cf680e9a

            SHA512

            685982cd98fe8a36f092b0da50fc1046102104f37db965c4ba4115dcec9d4646711da0ffb1205e6aa6fd108c8c0986daff1d5ef3bf3b414da272325e7e6e68ef

          • \Windows\SysWOW64\hfpapi.dll

            Filesize

            241KB

            MD5

            c077bda36ad7ad3d453ec62d6eca45e2

            SHA1

            d02866501cc9cf41be09da8baff00e95c488d17a

            SHA256

            024bd1d4b877cb1f749851a7f8b803d7e4ee181962cbec37b1416bf5cf680e9a

            SHA512

            685982cd98fe8a36f092b0da50fc1046102104f37db965c4ba4115dcec9d4646711da0ffb1205e6aa6fd108c8c0986daff1d5ef3bf3b414da272325e7e6e68ef

          • \Windows\SysWOW64\installd.exe

            Filesize

            108KB

            MD5

            90836769fec87e147bab5ae42da6e68a

            SHA1

            39a3784a15a6f2311f23519075764cd7ecfbfe4c

            SHA256

            dd1da53d3e9eb0b3bf85514be735146051bf299323aebf7b99f41b5f5bb2646a

            SHA512

            1dfafc841956a75aeade805b9734f98d4244704e4d31539fbc021eec3041c4f7460d3b920954c56c18969b4207424fbd285b4706d550b2885ab77e5067e5c656

          • \Windows\SysWOW64\nethtsrv.exe

            Filesize

            176KB

            MD5

            f9e14fff604f0d483c905366768077a6

            SHA1

            8a51ee1ffc83eb091898b8724e97ff09698656ae

            SHA256

            175fb1a1481693e7e2ea665fcb29a58a9f365515c402ea5d1da8a90320c73276

            SHA512

            a02d2c2eb1f2a1504e83368caf674b822dc9526ac69e263678ebcf11c43ac0a2a7d2bfb9a83d206ec2740d05ae3a2ba782da8f9bd4785e4afc9b22a70b7f3243

          • \Windows\SysWOW64\netupdsrv.exe

            Filesize

            158KB

            MD5

            94f744a2316a29c173b545e9e0ec3804

            SHA1

            cc6c120055ec713ceadec403ab42cd97a86e4439

            SHA256

            adca5050acb1d304726030e3ed6824061fab36e35439a9027d47eb3c04d7e7dc

            SHA512

            5845f342dafc53bef7e5ce8dd955affe2b0633048f6466597624c5a1c334e0e1b4c01d69e1fe049a333eac8e83e9ffdfdafc06aa98daf44d5f36bd372d411498

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

          • memory/776-62-0x0000000000000000-mapping.dmp

          • memory/860-61-0x0000000000000000-mapping.dmp

          • memory/992-81-0x0000000000000000-mapping.dmp

          • memory/1056-77-0x0000000000000000-mapping.dmp

          • memory/1112-58-0x0000000000000000-mapping.dmp

          • memory/1228-64-0x0000000000000000-mapping.dmp

          • memory/1636-82-0x0000000000000000-mapping.dmp

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

          • memory/1908-88-0x0000000000000000-mapping.dmp

          • memory/1992-57-0x0000000000000000-mapping.dmp

          • memory/2024-54-0x0000000075C21000-0x0000000075C23000-memory.dmp

            Filesize

            8KB

          • memory/2024-59-0x0000000000360000-0x00000000007BE000-memory.dmp

            Filesize

            4.4MB

          • memory/2024-69-0x0000000000360000-0x00000000007BE000-memory.dmp

            Filesize

            4.4MB

          • memory/2024-91-0x0000000000360000-0x00000000007BE000-memory.dmp

            Filesize

            4.4MB