Analysis

  • max time kernel
    42s
  • max time network
    46s
  • platform
    windows7_x64
  • resource
    win7-20220812-en
  • resource tags

    arch:x64arch:x86image:win7-20220812-enlocale:en-usos:windows7-x64system
  • submitted
    23-11-2022 10:52

General

  • Target

    cdeba9a24b514e18f1dc98a13490c9b38d190de428f96ad24ccd46467da7d4e1.exe

  • Size

    446KB

  • MD5

    6a45f5eacb63f3bf5aaf68e4e40ce811

  • SHA1

    fc7d0258725a8e347edf0ab8b6dfe06fb4636a5e

  • SHA256

    cdeba9a24b514e18f1dc98a13490c9b38d190de428f96ad24ccd46467da7d4e1

  • SHA512

    dda2bc855f498a8206a63642b04e8b26ec4ac745493a912b2769e005b3fc3860424834feee8dcfa8e6fb31f2b74fe723c3b7e6e670920ab6ab1f06d0c886dd8d

  • SSDEEP

    12288:Y681ApzfjYshPUaH05/e/ZE0HkTuPxAPbI0s:Y681AzEshP25/cEOkTwAzA

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\cdeba9a24b514e18f1dc98a13490c9b38d190de428f96ad24ccd46467da7d4e1.exe
    "C:\Users\Admin\AppData\Local\Temp\cdeba9a24b514e18f1dc98a13490c9b38d190de428f96ad24ccd46467da7d4e1.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:1048
    • C:\Windows\SysWOW64\net.exe
      net stop nethttpservice
      2⤵
      • Suspicious use of WriteProcessMemory
      PID:1756
      • C:\Windows\SysWOW64\net1.exe
        C:\Windows\system32\net1 stop nethttpservice
        3⤵
          PID:1508
      • C:\Windows\SysWOW64\net.exe
        net stop serviceupdater
        2⤵
        • Suspicious use of WriteProcessMemory
        PID:1760
        • C:\Windows\SysWOW64\net1.exe
          C:\Windows\system32\net1 stop serviceupdater
          3⤵
            PID:1212
        • C:\Windows\SysWOW64\installd.exe
          "C:\Windows\system32\installd.exe" nethfdrv
          2⤵
          • Executes dropped EXE
          • Loads dropped DLL
          PID:1768
        • C:\Windows\SysWOW64\nethtsrv.exe
          "C:\Windows\system32\nethtsrv.exe" -nfdi
          2⤵
          • Executes dropped EXE
          • Loads dropped DLL
          PID:916
        • C:\Windows\SysWOW64\netupdsrv.exe
          "C:\Windows\system32\netupdsrv.exe" -nfdi
          2⤵
          • Executes dropped EXE
          PID:1700
        • C:\Windows\SysWOW64\net.exe
          net start nethttpservice
          2⤵
          • Suspicious use of WriteProcessMemory
          PID:1208
          • C:\Windows\SysWOW64\net1.exe
            C:\Windows\system32\net1 start nethttpservice
            3⤵
              PID:472
          • C:\Windows\SysWOW64\net.exe
            net start serviceupdater
            2⤵
            • Suspicious use of WriteProcessMemory
            PID:1556
            • C:\Windows\SysWOW64\net1.exe
              C:\Windows\system32\net1 start serviceupdater
              3⤵
                PID:2044
          • C:\Windows\SysWOW64\nethtsrv.exe
            C:\Windows\SysWOW64\nethtsrv.exe
            1⤵
            • Executes dropped EXE
            • Loads dropped DLL
            • Suspicious use of AdjustPrivilegeToken
            PID:1636
          • C:\Windows\SysWOW64\netupdsrv.exe
            C:\Windows\SysWOW64\netupdsrv.exe
            1⤵
            • Executes dropped EXE
            PID:1976

          Network

          MITRE ATT&CK Enterprise v6

          Replay Monitor

          Loading Replay Monitor...

          Downloads

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

            106KB

            MD5

            f335865e44b74cb87cc4f85da4c44f22

            SHA1

            3d8b841e4a037fcc06474d069a15587140ea8a52

            SHA256

            8315d1691c5f3712952177ce9dbe455eda5842ad585690842e96036bd2c52308

            SHA512

            dbd499c04d2f7ed81f9e0579fdaa997143c83b67f03b0b287bcaef54545f24a1f8f747f9fe6a0c100a27466dd8be848153f3b08505f2367fd5d33807efced8e3

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

            241KB

            MD5

            ea3b066c9d027866d37bf048f8dd8c78

            SHA1

            e7e8659272fa3152982602240158bbbcdace00d6

            SHA256

            f422297d290532089da4b4408e73b03fc0092ee196ef84549ee91fd149f6a30d

            SHA512

            383d8df20842cafbbdff3d2ba5a10872dea61929fbf39cac6e49689ac612817d795f70d4ac309a9cbdf68954573fcb6464a0c6d88a00ddd33afb00453eac6311

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

            108KB

            MD5

            f469872db690231e6a00728505d0067c

            SHA1

            5b69469edf30d118e098bd46520e1723e4e8429e

            SHA256

            2609144692ea607fc54e228cd1faa5722200199085669458f6aa58129f9845c1

            SHA512

            4e43531951fda963df148aa8b4463d3dc270b815e1e36f282c1d4dc83d47e82552f13801b70fdbf89f61bfa25e61267671f252dac40ad5ce092b96b4f0b82730

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

            176KB

            MD5

            3730a20af4230ce515eedd7166990834

            SHA1

            6f707344b08cf9b968ec22df9d251dec2ca7b5d1

            SHA256

            4fd404efd552ddec453d605827d6f8214c9a6f2ff97aa67d2fd41773c5008942

            SHA512

            f1e72eb9a2ce0de4d1f3ae53c4962c1d9c31e2e02e661642a85fbea4b8606ae8eea954c04c0175402751e73f08657fe298170cd879f51cfc65eb083d017c8e51

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

            176KB

            MD5

            3730a20af4230ce515eedd7166990834

            SHA1

            6f707344b08cf9b968ec22df9d251dec2ca7b5d1

            SHA256

            4fd404efd552ddec453d605827d6f8214c9a6f2ff97aa67d2fd41773c5008942

            SHA512

            f1e72eb9a2ce0de4d1f3ae53c4962c1d9c31e2e02e661642a85fbea4b8606ae8eea954c04c0175402751e73f08657fe298170cd879f51cfc65eb083d017c8e51

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

            158KB

            MD5

            c750116b3b14d04fd57876c59c61048b

            SHA1

            d8d3634e95b8a6d2baa7c7429892f08d15d3f24c

            SHA256

            fb6dfd607782141ebbaf5fa2830e7039b11d7ffa90f93f20e20dea3c60398073

            SHA512

            b6d4abf56a5e22891253e8427379e31d9a0fc8f6c754eb644acb168a74cec8c77961be09f9030d19b01560ba06fdcdf031790423f55633ac3f7ad4672997fd71

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

            158KB

            MD5

            c750116b3b14d04fd57876c59c61048b

            SHA1

            d8d3634e95b8a6d2baa7c7429892f08d15d3f24c

            SHA256

            fb6dfd607782141ebbaf5fa2830e7039b11d7ffa90f93f20e20dea3c60398073

            SHA512

            b6d4abf56a5e22891253e8427379e31d9a0fc8f6c754eb644acb168a74cec8c77961be09f9030d19b01560ba06fdcdf031790423f55633ac3f7ad4672997fd71

          • \Users\Admin\AppData\Local\Temp\nsdFF77.tmp\System.dll
            Filesize

            11KB

            MD5

            c17103ae9072a06da581dec998343fc1

            SHA1

            b72148c6bdfaada8b8c3f950e610ee7cf1da1f8d

            SHA256

            dc58d8ad81cacb0c1ed72e33bff8f23ea40b5252b5bb55d393a0903e6819ae2f

            SHA512

            d32a71aaef18e993f28096d536e41c4d016850721b31171513ce28bbd805a54fd290b7c3e9d935f72e676a1acfb4f0dcc89d95040a0dd29f2b6975855c18986f

          • \Users\Admin\AppData\Local\Temp\nsdFF77.tmp\nsExec.dll
            Filesize

            6KB

            MD5

            acc2b699edfea5bf5aae45aba3a41e96

            SHA1

            d2accf4d494e43ceb2cff69abe4dd17147d29cc2

            SHA256

            168a974eaa3f588d759db3f47c1a9fdc3494ba1fa1a73a84e5e3b2a4d58abd7e

            SHA512

            e29ea10ada98c71a18273b04f44f385b120d4e8473e441ce5748cfa44a23648814f2656f429b85440157988c88de776c6ac008dc38bf09cbb746c230a46c69fe

          • \Users\Admin\AppData\Local\Temp\nsdFF77.tmp\nsExec.dll
            Filesize

            6KB

            MD5

            acc2b699edfea5bf5aae45aba3a41e96

            SHA1

            d2accf4d494e43ceb2cff69abe4dd17147d29cc2

            SHA256

            168a974eaa3f588d759db3f47c1a9fdc3494ba1fa1a73a84e5e3b2a4d58abd7e

            SHA512

            e29ea10ada98c71a18273b04f44f385b120d4e8473e441ce5748cfa44a23648814f2656f429b85440157988c88de776c6ac008dc38bf09cbb746c230a46c69fe

          • \Users\Admin\AppData\Local\Temp\nsdFF77.tmp\nsExec.dll
            Filesize

            6KB

            MD5

            acc2b699edfea5bf5aae45aba3a41e96

            SHA1

            d2accf4d494e43ceb2cff69abe4dd17147d29cc2

            SHA256

            168a974eaa3f588d759db3f47c1a9fdc3494ba1fa1a73a84e5e3b2a4d58abd7e

            SHA512

            e29ea10ada98c71a18273b04f44f385b120d4e8473e441ce5748cfa44a23648814f2656f429b85440157988c88de776c6ac008dc38bf09cbb746c230a46c69fe

          • \Users\Admin\AppData\Local\Temp\nsdFF77.tmp\nsExec.dll
            Filesize

            6KB

            MD5

            acc2b699edfea5bf5aae45aba3a41e96

            SHA1

            d2accf4d494e43ceb2cff69abe4dd17147d29cc2

            SHA256

            168a974eaa3f588d759db3f47c1a9fdc3494ba1fa1a73a84e5e3b2a4d58abd7e

            SHA512

            e29ea10ada98c71a18273b04f44f385b120d4e8473e441ce5748cfa44a23648814f2656f429b85440157988c88de776c6ac008dc38bf09cbb746c230a46c69fe

          • \Windows\SysWOW64\hfnapi.dll
            Filesize

            106KB

            MD5

            f335865e44b74cb87cc4f85da4c44f22

            SHA1

            3d8b841e4a037fcc06474d069a15587140ea8a52

            SHA256

            8315d1691c5f3712952177ce9dbe455eda5842ad585690842e96036bd2c52308

            SHA512

            dbd499c04d2f7ed81f9e0579fdaa997143c83b67f03b0b287bcaef54545f24a1f8f747f9fe6a0c100a27466dd8be848153f3b08505f2367fd5d33807efced8e3

          • \Windows\SysWOW64\hfnapi.dll
            Filesize

            106KB

            MD5

            f335865e44b74cb87cc4f85da4c44f22

            SHA1

            3d8b841e4a037fcc06474d069a15587140ea8a52

            SHA256

            8315d1691c5f3712952177ce9dbe455eda5842ad585690842e96036bd2c52308

            SHA512

            dbd499c04d2f7ed81f9e0579fdaa997143c83b67f03b0b287bcaef54545f24a1f8f747f9fe6a0c100a27466dd8be848153f3b08505f2367fd5d33807efced8e3

          • \Windows\SysWOW64\hfnapi.dll
            Filesize

            106KB

            MD5

            f335865e44b74cb87cc4f85da4c44f22

            SHA1

            3d8b841e4a037fcc06474d069a15587140ea8a52

            SHA256

            8315d1691c5f3712952177ce9dbe455eda5842ad585690842e96036bd2c52308

            SHA512

            dbd499c04d2f7ed81f9e0579fdaa997143c83b67f03b0b287bcaef54545f24a1f8f747f9fe6a0c100a27466dd8be848153f3b08505f2367fd5d33807efced8e3

          • \Windows\SysWOW64\hfpapi.dll
            Filesize

            241KB

            MD5

            ea3b066c9d027866d37bf048f8dd8c78

            SHA1

            e7e8659272fa3152982602240158bbbcdace00d6

            SHA256

            f422297d290532089da4b4408e73b03fc0092ee196ef84549ee91fd149f6a30d

            SHA512

            383d8df20842cafbbdff3d2ba5a10872dea61929fbf39cac6e49689ac612817d795f70d4ac309a9cbdf68954573fcb6464a0c6d88a00ddd33afb00453eac6311

          • \Windows\SysWOW64\hfpapi.dll
            Filesize

            241KB

            MD5

            ea3b066c9d027866d37bf048f8dd8c78

            SHA1

            e7e8659272fa3152982602240158bbbcdace00d6

            SHA256

            f422297d290532089da4b4408e73b03fc0092ee196ef84549ee91fd149f6a30d

            SHA512

            383d8df20842cafbbdff3d2ba5a10872dea61929fbf39cac6e49689ac612817d795f70d4ac309a9cbdf68954573fcb6464a0c6d88a00ddd33afb00453eac6311

          • \Windows\SysWOW64\installd.exe
            Filesize

            108KB

            MD5

            f469872db690231e6a00728505d0067c

            SHA1

            5b69469edf30d118e098bd46520e1723e4e8429e

            SHA256

            2609144692ea607fc54e228cd1faa5722200199085669458f6aa58129f9845c1

            SHA512

            4e43531951fda963df148aa8b4463d3dc270b815e1e36f282c1d4dc83d47e82552f13801b70fdbf89f61bfa25e61267671f252dac40ad5ce092b96b4f0b82730

          • \Windows\SysWOW64\nethtsrv.exe
            Filesize

            176KB

            MD5

            3730a20af4230ce515eedd7166990834

            SHA1

            6f707344b08cf9b968ec22df9d251dec2ca7b5d1

            SHA256

            4fd404efd552ddec453d605827d6f8214c9a6f2ff97aa67d2fd41773c5008942

            SHA512

            f1e72eb9a2ce0de4d1f3ae53c4962c1d9c31e2e02e661642a85fbea4b8606ae8eea954c04c0175402751e73f08657fe298170cd879f51cfc65eb083d017c8e51

          • \Windows\SysWOW64\netupdsrv.exe
            Filesize

            158KB

            MD5

            c750116b3b14d04fd57876c59c61048b

            SHA1

            d8d3634e95b8a6d2baa7c7429892f08d15d3f24c

            SHA256

            fb6dfd607782141ebbaf5fa2830e7039b11d7ffa90f93f20e20dea3c60398073

            SHA512

            b6d4abf56a5e22891253e8427379e31d9a0fc8f6c754eb644acb168a74cec8c77961be09f9030d19b01560ba06fdcdf031790423f55633ac3f7ad4672997fd71

          • memory/472-80-0x0000000000000000-mapping.dmp
          • memory/916-69-0x0000000000000000-mapping.dmp
          • memory/1048-54-0x0000000076171000-0x0000000076173000-memory.dmp
            Filesize

            8KB

          • memory/1208-79-0x0000000000000000-mapping.dmp
          • memory/1212-61-0x0000000000000000-mapping.dmp
          • memory/1508-58-0x0000000000000000-mapping.dmp
          • memory/1556-85-0x0000000000000000-mapping.dmp
          • memory/1700-75-0x0000000000000000-mapping.dmp
          • memory/1756-57-0x0000000000000000-mapping.dmp
          • memory/1760-60-0x0000000000000000-mapping.dmp
          • memory/1768-63-0x0000000000000000-mapping.dmp
          • memory/2044-86-0x0000000000000000-mapping.dmp