Analysis

  • max time kernel
    47s
  • max time network
    47s
  • platform
    windows7_x64
  • resource
    win7-20220812-en
  • resource tags

    arch:x64arch:x86image:win7-20220812-enlocale:en-usos:windows7-x64system
  • submitted
    23-11-2022 10:21

General

  • Target

    80927e2b95de20b93b38cc22cee34a7edc8ea5d424e27196eb656d272812d941.exe

  • Size

    603KB

  • MD5

    b94ad7fc35925c54254738078b70e1d1

  • SHA1

    e53b0fd33377baf55cd797b2670638c621350295

  • SHA256

    80927e2b95de20b93b38cc22cee34a7edc8ea5d424e27196eb656d272812d941

  • SHA512

    410e732aea60455eb3f6095e81a9fae88700737e262aa462b3b513881a4bfc4728479fcb4d328d3d9266154f312e93a4019f99701df731e56e0a8ebb36717d25

  • SSDEEP

    12288:rIny5DYTEN02fg8dbnweVJtGaU+LqmNawxAM0DxgW4Jv:TUTEbfXRXVJkaLP0M0DxQ

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\80927e2b95de20b93b38cc22cee34a7edc8ea5d424e27196eb656d272812d941.exe
    "C:\Users\Admin\AppData\Local\Temp\80927e2b95de20b93b38cc22cee34a7edc8ea5d424e27196eb656d272812d941.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:932
    • C:\Windows\SysWOW64\net.exe
      net stop nethttpservice
      2⤵
      • Suspicious use of WriteProcessMemory
      PID:1972
      • C:\Windows\SysWOW64\net1.exe
        C:\Windows\system32\net1 stop nethttpservice
        3⤵
          PID:1760
      • C:\Windows\SysWOW64\net.exe
        net stop serviceupdater
        2⤵
        • Suspicious use of WriteProcessMemory
        PID:1264
        • C:\Windows\SysWOW64\net1.exe
          C:\Windows\system32\net1 stop serviceupdater
          3⤵
            PID:1744
        • C:\Windows\SysWOW64\installd.exe
          "C:\Windows\system32\installd.exe" nethfdrv
          2⤵
          • Executes dropped EXE
          • Loads dropped DLL
          PID:820
        • C:\Windows\SysWOW64\nethtsrv.exe
          "C:\Windows\system32\nethtsrv.exe" -nfdi
          2⤵
          • Executes dropped EXE
          • Loads dropped DLL
          PID:1608
        • C:\Windows\SysWOW64\netupdsrv.exe
          "C:\Windows\system32\netupdsrv.exe" -nfdi
          2⤵
          • Executes dropped EXE
          PID:1596
        • C:\Windows\SysWOW64\net.exe
          net start nethttpservice
          2⤵
          • Suspicious use of WriteProcessMemory
          PID:1944
          • C:\Windows\SysWOW64\net1.exe
            C:\Windows\system32\net1 start nethttpservice
            3⤵
              PID:580
          • C:\Windows\SysWOW64\net.exe
            net start serviceupdater
            2⤵
            • Suspicious use of WriteProcessMemory
            PID:836
            • C:\Windows\SysWOW64\net1.exe
              C:\Windows\system32\net1 start serviceupdater
              3⤵
                PID:2032
          • C:\Windows\SysWOW64\nethtsrv.exe
            C:\Windows\SysWOW64\nethtsrv.exe
            1⤵
            • Executes dropped EXE
            • Loads dropped DLL
            • Suspicious use of AdjustPrivilegeToken
            PID:1620
          • C:\Windows\SysWOW64\netupdsrv.exe
            C:\Windows\SysWOW64\netupdsrv.exe
            1⤵
            • Executes dropped EXE
            PID:912

          Network

          MITRE ATT&CK Enterprise v6

          Replay Monitor

          Loading Replay Monitor...

          Downloads

          • C:\Windows\SysWOW64\hfnapi.dll

            Filesize

            106KB

            MD5

            e5fce21c5c05e5f625fc697548eb2d15

            SHA1

            a0ee8a00a77dd476d2557f225ce4f0c5b0d9bd27

            SHA256

            7a729b262dc6d4c33264d3d77c8bc27a3733dc276e0bc054d4b05be5b0287c4f

            SHA512

            83ab5a5493c03735450a057213693213d2417bd527c996c5603613f83e95723400d937b9494c51d68f9544d970fcd3806ee282cbf820f06d3fac4cced84aa09f

          • C:\Windows\SysWOW64\hfpapi.dll

            Filesize

            244KB

            MD5

            a5777b9eeecb27c7632311cf673b1f7c

            SHA1

            46e0ec5c5b51e8aa42f4296836445452535e116d

            SHA256

            ae9032e7ad6fa040f9be1b757118f35f15f7380ec29639be4047e3da92b29ca4

            SHA512

            d29e8089130eafa14af08acb85f95c32da95c617abeed7aebab5d9b20db247709b546d17888f2f2646e3a3a27d21de2b0258a197e57a1f374e9e18b27b80b2e5

          • C:\Windows\SysWOW64\installd.exe

            Filesize

            108KB

            MD5

            d9bfd079b28653382ad61f75d8e9f8db

            SHA1

            bf0946605b463ba51a0a25a85a048b0d07ef7f2e

            SHA256

            2922c620e7212a7fa09c69313ca7f0efc51c45c21c429268bbf0c08a1923fc1f

            SHA512

            5f10667b390293c520cd9c35c94f205dbb01fa1d4f07ec488f16d809bbc7e5655898ba8e5efa8a4fdb460f21d27c185bfb1e141f03e166d3f93d64b9e4891335

          • C:\Windows\SysWOW64\nethtsrv.exe

            Filesize

            176KB

            MD5

            85a24522b92e2295ec81c74998974017

            SHA1

            ccf1d94bfcfa8ac2eb8ff1045efb6a223f972e52

            SHA256

            555e3903bb368a88758550f6517b80ca1fe34755120aad8018dff7c25faef0b3

            SHA512

            66a9affebcaf131313a96afe286f2f8bc6a2a55ba71c5a264bcedd8edc01540b2aca9a9186ad77aea0b2a150515e20874819408295ec3e61dc6fe39378047d0d

          • C:\Windows\SysWOW64\nethtsrv.exe

            Filesize

            176KB

            MD5

            85a24522b92e2295ec81c74998974017

            SHA1

            ccf1d94bfcfa8ac2eb8ff1045efb6a223f972e52

            SHA256

            555e3903bb368a88758550f6517b80ca1fe34755120aad8018dff7c25faef0b3

            SHA512

            66a9affebcaf131313a96afe286f2f8bc6a2a55ba71c5a264bcedd8edc01540b2aca9a9186ad77aea0b2a150515e20874819408295ec3e61dc6fe39378047d0d

          • C:\Windows\SysWOW64\netupdsrv.exe

            Filesize

            158KB

            MD5

            82f903ab6463ac7c26f94423ffd3b422

            SHA1

            09841ac8806b1bdb53c14698f861fcb17cc134e0

            SHA256

            3d0fba1dad08740155062589ee37cf2069bb39ecbfad86d3cbca0d5782689dbe

            SHA512

            05c7052e90e8ca058206a689fb5467ba1edd9916c143375944269f72e077de68733bca24ac452112bd26c0df5fea8ddddd2da4fcdc8431362f100e07af81d6d9

          • C:\Windows\SysWOW64\netupdsrv.exe

            Filesize

            158KB

            MD5

            82f903ab6463ac7c26f94423ffd3b422

            SHA1

            09841ac8806b1bdb53c14698f861fcb17cc134e0

            SHA256

            3d0fba1dad08740155062589ee37cf2069bb39ecbfad86d3cbca0d5782689dbe

            SHA512

            05c7052e90e8ca058206a689fb5467ba1edd9916c143375944269f72e077de68733bca24ac452112bd26c0df5fea8ddddd2da4fcdc8431362f100e07af81d6d9

          • \Users\Admin\AppData\Local\Temp\nsjAAD3.tmp\System.dll

            Filesize

            11KB

            MD5

            c17103ae9072a06da581dec998343fc1

            SHA1

            b72148c6bdfaada8b8c3f950e610ee7cf1da1f8d

            SHA256

            dc58d8ad81cacb0c1ed72e33bff8f23ea40b5252b5bb55d393a0903e6819ae2f

            SHA512

            d32a71aaef18e993f28096d536e41c4d016850721b31171513ce28bbd805a54fd290b7c3e9d935f72e676a1acfb4f0dcc89d95040a0dd29f2b6975855c18986f

          • \Users\Admin\AppData\Local\Temp\nsjAAD3.tmp\nsExec.dll

            Filesize

            6KB

            MD5

            acc2b699edfea5bf5aae45aba3a41e96

            SHA1

            d2accf4d494e43ceb2cff69abe4dd17147d29cc2

            SHA256

            168a974eaa3f588d759db3f47c1a9fdc3494ba1fa1a73a84e5e3b2a4d58abd7e

            SHA512

            e29ea10ada98c71a18273b04f44f385b120d4e8473e441ce5748cfa44a23648814f2656f429b85440157988c88de776c6ac008dc38bf09cbb746c230a46c69fe

          • \Users\Admin\AppData\Local\Temp\nsjAAD3.tmp\nsExec.dll

            Filesize

            6KB

            MD5

            acc2b699edfea5bf5aae45aba3a41e96

            SHA1

            d2accf4d494e43ceb2cff69abe4dd17147d29cc2

            SHA256

            168a974eaa3f588d759db3f47c1a9fdc3494ba1fa1a73a84e5e3b2a4d58abd7e

            SHA512

            e29ea10ada98c71a18273b04f44f385b120d4e8473e441ce5748cfa44a23648814f2656f429b85440157988c88de776c6ac008dc38bf09cbb746c230a46c69fe

          • \Users\Admin\AppData\Local\Temp\nsjAAD3.tmp\nsExec.dll

            Filesize

            6KB

            MD5

            acc2b699edfea5bf5aae45aba3a41e96

            SHA1

            d2accf4d494e43ceb2cff69abe4dd17147d29cc2

            SHA256

            168a974eaa3f588d759db3f47c1a9fdc3494ba1fa1a73a84e5e3b2a4d58abd7e

            SHA512

            e29ea10ada98c71a18273b04f44f385b120d4e8473e441ce5748cfa44a23648814f2656f429b85440157988c88de776c6ac008dc38bf09cbb746c230a46c69fe

          • \Users\Admin\AppData\Local\Temp\nsjAAD3.tmp\nsExec.dll

            Filesize

            6KB

            MD5

            acc2b699edfea5bf5aae45aba3a41e96

            SHA1

            d2accf4d494e43ceb2cff69abe4dd17147d29cc2

            SHA256

            168a974eaa3f588d759db3f47c1a9fdc3494ba1fa1a73a84e5e3b2a4d58abd7e

            SHA512

            e29ea10ada98c71a18273b04f44f385b120d4e8473e441ce5748cfa44a23648814f2656f429b85440157988c88de776c6ac008dc38bf09cbb746c230a46c69fe

          • \Windows\SysWOW64\hfnapi.dll

            Filesize

            106KB

            MD5

            e5fce21c5c05e5f625fc697548eb2d15

            SHA1

            a0ee8a00a77dd476d2557f225ce4f0c5b0d9bd27

            SHA256

            7a729b262dc6d4c33264d3d77c8bc27a3733dc276e0bc054d4b05be5b0287c4f

            SHA512

            83ab5a5493c03735450a057213693213d2417bd527c996c5603613f83e95723400d937b9494c51d68f9544d970fcd3806ee282cbf820f06d3fac4cced84aa09f

          • \Windows\SysWOW64\hfnapi.dll

            Filesize

            106KB

            MD5

            e5fce21c5c05e5f625fc697548eb2d15

            SHA1

            a0ee8a00a77dd476d2557f225ce4f0c5b0d9bd27

            SHA256

            7a729b262dc6d4c33264d3d77c8bc27a3733dc276e0bc054d4b05be5b0287c4f

            SHA512

            83ab5a5493c03735450a057213693213d2417bd527c996c5603613f83e95723400d937b9494c51d68f9544d970fcd3806ee282cbf820f06d3fac4cced84aa09f

          • \Windows\SysWOW64\hfnapi.dll

            Filesize

            106KB

            MD5

            e5fce21c5c05e5f625fc697548eb2d15

            SHA1

            a0ee8a00a77dd476d2557f225ce4f0c5b0d9bd27

            SHA256

            7a729b262dc6d4c33264d3d77c8bc27a3733dc276e0bc054d4b05be5b0287c4f

            SHA512

            83ab5a5493c03735450a057213693213d2417bd527c996c5603613f83e95723400d937b9494c51d68f9544d970fcd3806ee282cbf820f06d3fac4cced84aa09f

          • \Windows\SysWOW64\hfpapi.dll

            Filesize

            244KB

            MD5

            a5777b9eeecb27c7632311cf673b1f7c

            SHA1

            46e0ec5c5b51e8aa42f4296836445452535e116d

            SHA256

            ae9032e7ad6fa040f9be1b757118f35f15f7380ec29639be4047e3da92b29ca4

            SHA512

            d29e8089130eafa14af08acb85f95c32da95c617abeed7aebab5d9b20db247709b546d17888f2f2646e3a3a27d21de2b0258a197e57a1f374e9e18b27b80b2e5

          • \Windows\SysWOW64\hfpapi.dll

            Filesize

            244KB

            MD5

            a5777b9eeecb27c7632311cf673b1f7c

            SHA1

            46e0ec5c5b51e8aa42f4296836445452535e116d

            SHA256

            ae9032e7ad6fa040f9be1b757118f35f15f7380ec29639be4047e3da92b29ca4

            SHA512

            d29e8089130eafa14af08acb85f95c32da95c617abeed7aebab5d9b20db247709b546d17888f2f2646e3a3a27d21de2b0258a197e57a1f374e9e18b27b80b2e5

          • \Windows\SysWOW64\installd.exe

            Filesize

            108KB

            MD5

            d9bfd079b28653382ad61f75d8e9f8db

            SHA1

            bf0946605b463ba51a0a25a85a048b0d07ef7f2e

            SHA256

            2922c620e7212a7fa09c69313ca7f0efc51c45c21c429268bbf0c08a1923fc1f

            SHA512

            5f10667b390293c520cd9c35c94f205dbb01fa1d4f07ec488f16d809bbc7e5655898ba8e5efa8a4fdb460f21d27c185bfb1e141f03e166d3f93d64b9e4891335

          • \Windows\SysWOW64\nethtsrv.exe

            Filesize

            176KB

            MD5

            85a24522b92e2295ec81c74998974017

            SHA1

            ccf1d94bfcfa8ac2eb8ff1045efb6a223f972e52

            SHA256

            555e3903bb368a88758550f6517b80ca1fe34755120aad8018dff7c25faef0b3

            SHA512

            66a9affebcaf131313a96afe286f2f8bc6a2a55ba71c5a264bcedd8edc01540b2aca9a9186ad77aea0b2a150515e20874819408295ec3e61dc6fe39378047d0d

          • \Windows\SysWOW64\netupdsrv.exe

            Filesize

            158KB

            MD5

            82f903ab6463ac7c26f94423ffd3b422

            SHA1

            09841ac8806b1bdb53c14698f861fcb17cc134e0

            SHA256

            3d0fba1dad08740155062589ee37cf2069bb39ecbfad86d3cbca0d5782689dbe

            SHA512

            05c7052e90e8ca058206a689fb5467ba1edd9916c143375944269f72e077de68733bca24ac452112bd26c0df5fea8ddddd2da4fcdc8431362f100e07af81d6d9

          • memory/580-81-0x0000000000000000-mapping.dmp

          • memory/820-64-0x0000000000000000-mapping.dmp

          • memory/836-86-0x0000000000000000-mapping.dmp

          • memory/932-62-0x0000000000360000-0x00000000007BE000-memory.dmp

            Filesize

            4.4MB

          • memory/932-54-0x0000000075A81000-0x0000000075A83000-memory.dmp

            Filesize

            8KB

          • memory/932-90-0x0000000000360000-0x00000000007BE000-memory.dmp

            Filesize

            4.4MB

          • memory/1264-60-0x0000000000000000-mapping.dmp

          • memory/1596-76-0x0000000000000000-mapping.dmp

          • memory/1608-70-0x0000000000000000-mapping.dmp

          • memory/1744-61-0x0000000000000000-mapping.dmp

          • memory/1760-58-0x0000000000000000-mapping.dmp

          • memory/1944-80-0x0000000000000000-mapping.dmp

          • memory/1972-57-0x0000000000000000-mapping.dmp

          • memory/2032-87-0x0000000000000000-mapping.dmp