Analysis

  • max time kernel
    201s
  • max time network
    209s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20221111-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20221111-enlocale:en-usos:windows10-2004-x64system
  • submitted
    23-11-2022 10:34

General

  • Target

    07fa0e44457e3c8c275aa11f328a79874e7c84a78611d1ef808704594452fa14.exe

  • Size

    601KB

  • MD5

    168b968204d70db2ca48e7806327ff9b

  • SHA1

    f9f67a22b207456d5e426833245a897e33235f2c

  • SHA256

    07fa0e44457e3c8c275aa11f328a79874e7c84a78611d1ef808704594452fa14

  • SHA512

    b0344cac6dfcdf9e3d82c8044380eff69101909b39a5b7ade1f3b6f5635c3385be257730895c0ac4827276d720744a26239dd6fecb99ee3752cab64ca62a93c7

  • SSDEEP

    12288:2Iny5DYTgKRQco4Z0Ng3bYAALMku+i9I4k3PB:4UTguQcow0Ng3EbLn2LkPB

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\07fa0e44457e3c8c275aa11f328a79874e7c84a78611d1ef808704594452fa14.exe
    "C:\Users\Admin\AppData\Local\Temp\07fa0e44457e3c8c275aa11f328a79874e7c84a78611d1ef808704594452fa14.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:1100
    • C:\Windows\SysWOW64\net.exe
      net stop nethttpservice
      2⤵
      • Suspicious use of WriteProcessMemory
      PID:4528
      • C:\Windows\SysWOW64\net1.exe
        C:\Windows\system32\net1 stop nethttpservice
        3⤵
          PID:2120
      • C:\Windows\SysWOW64\net.exe
        net stop serviceupdater
        2⤵
        • Suspicious use of WriteProcessMemory
        PID:2352
        • C:\Windows\SysWOW64\net1.exe
          C:\Windows\system32\net1 stop serviceupdater
          3⤵
            PID:2232
        • C:\Windows\SysWOW64\installd.exe
          "C:\Windows\system32\installd.exe" nethfdrv
          2⤵
          • Executes dropped EXE
          • Loads dropped DLL
          PID:4152
        • C:\Windows\SysWOW64\nethtsrv.exe
          "C:\Windows\system32\nethtsrv.exe" -nfdi
          2⤵
          • Executes dropped EXE
          • Loads dropped DLL
          PID:2220
        • C:\Windows\SysWOW64\netupdsrv.exe
          "C:\Windows\system32\netupdsrv.exe" -nfdi
          2⤵
          • Executes dropped EXE
          PID:1140
        • C:\Windows\SysWOW64\net.exe
          net start nethttpservice
          2⤵
          • Suspicious use of WriteProcessMemory
          PID:1468
          • C:\Windows\SysWOW64\net1.exe
            C:\Windows\system32\net1 start nethttpservice
            3⤵
              PID:2164
          • C:\Windows\SysWOW64\net.exe
            net start serviceupdater
            2⤵
            • Suspicious use of WriteProcessMemory
            PID:4696
            • C:\Windows\SysWOW64\net1.exe
              C:\Windows\system32\net1 start serviceupdater
              3⤵
                PID:4080
          • 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:2552
          • C:\Windows\SysWOW64\netupdsrv.exe
            C:\Windows\SysWOW64\netupdsrv.exe
            1⤵
            • Executes dropped EXE
            PID:748

          Network

          MITRE ATT&CK Enterprise v6

          Replay Monitor

          Loading Replay Monitor...

          Downloads

          • C:\Users\Admin\AppData\Local\Temp\nsrFC25.tmp\System.dll

            Filesize

            11KB

            MD5

            c17103ae9072a06da581dec998343fc1

            SHA1

            b72148c6bdfaada8b8c3f950e610ee7cf1da1f8d

            SHA256

            dc58d8ad81cacb0c1ed72e33bff8f23ea40b5252b5bb55d393a0903e6819ae2f

            SHA512

            d32a71aaef18e993f28096d536e41c4d016850721b31171513ce28bbd805a54fd290b7c3e9d935f72e676a1acfb4f0dcc89d95040a0dd29f2b6975855c18986f

          • C:\Users\Admin\AppData\Local\Temp\nsrFC25.tmp\nsExec.dll

            Filesize

            6KB

            MD5

            acc2b699edfea5bf5aae45aba3a41e96

            SHA1

            d2accf4d494e43ceb2cff69abe4dd17147d29cc2

            SHA256

            168a974eaa3f588d759db3f47c1a9fdc3494ba1fa1a73a84e5e3b2a4d58abd7e

            SHA512

            e29ea10ada98c71a18273b04f44f385b120d4e8473e441ce5748cfa44a23648814f2656f429b85440157988c88de776c6ac008dc38bf09cbb746c230a46c69fe

          • C:\Users\Admin\AppData\Local\Temp\nsrFC25.tmp\nsExec.dll

            Filesize

            6KB

            MD5

            acc2b699edfea5bf5aae45aba3a41e96

            SHA1

            d2accf4d494e43ceb2cff69abe4dd17147d29cc2

            SHA256

            168a974eaa3f588d759db3f47c1a9fdc3494ba1fa1a73a84e5e3b2a4d58abd7e

            SHA512

            e29ea10ada98c71a18273b04f44f385b120d4e8473e441ce5748cfa44a23648814f2656f429b85440157988c88de776c6ac008dc38bf09cbb746c230a46c69fe

          • C:\Users\Admin\AppData\Local\Temp\nsrFC25.tmp\nsExec.dll

            Filesize

            6KB

            MD5

            acc2b699edfea5bf5aae45aba3a41e96

            SHA1

            d2accf4d494e43ceb2cff69abe4dd17147d29cc2

            SHA256

            168a974eaa3f588d759db3f47c1a9fdc3494ba1fa1a73a84e5e3b2a4d58abd7e

            SHA512

            e29ea10ada98c71a18273b04f44f385b120d4e8473e441ce5748cfa44a23648814f2656f429b85440157988c88de776c6ac008dc38bf09cbb746c230a46c69fe

          • C:\Users\Admin\AppData\Local\Temp\nsrFC25.tmp\nsExec.dll

            Filesize

            6KB

            MD5

            acc2b699edfea5bf5aae45aba3a41e96

            SHA1

            d2accf4d494e43ceb2cff69abe4dd17147d29cc2

            SHA256

            168a974eaa3f588d759db3f47c1a9fdc3494ba1fa1a73a84e5e3b2a4d58abd7e

            SHA512

            e29ea10ada98c71a18273b04f44f385b120d4e8473e441ce5748cfa44a23648814f2656f429b85440157988c88de776c6ac008dc38bf09cbb746c230a46c69fe

          • C:\Users\Admin\AppData\Local\Temp\nsrFC25.tmp\nsExec.dll

            Filesize

            6KB

            MD5

            acc2b699edfea5bf5aae45aba3a41e96

            SHA1

            d2accf4d494e43ceb2cff69abe4dd17147d29cc2

            SHA256

            168a974eaa3f588d759db3f47c1a9fdc3494ba1fa1a73a84e5e3b2a4d58abd7e

            SHA512

            e29ea10ada98c71a18273b04f44f385b120d4e8473e441ce5748cfa44a23648814f2656f429b85440157988c88de776c6ac008dc38bf09cbb746c230a46c69fe

          • C:\Users\Admin\AppData\Local\Temp\nsrFC25.tmp\nsExec.dll

            Filesize

            6KB

            MD5

            acc2b699edfea5bf5aae45aba3a41e96

            SHA1

            d2accf4d494e43ceb2cff69abe4dd17147d29cc2

            SHA256

            168a974eaa3f588d759db3f47c1a9fdc3494ba1fa1a73a84e5e3b2a4d58abd7e

            SHA512

            e29ea10ada98c71a18273b04f44f385b120d4e8473e441ce5748cfa44a23648814f2656f429b85440157988c88de776c6ac008dc38bf09cbb746c230a46c69fe

          • C:\Users\Admin\AppData\Local\Temp\nsrFC25.tmp\nsExec.dll

            Filesize

            6KB

            MD5

            acc2b699edfea5bf5aae45aba3a41e96

            SHA1

            d2accf4d494e43ceb2cff69abe4dd17147d29cc2

            SHA256

            168a974eaa3f588d759db3f47c1a9fdc3494ba1fa1a73a84e5e3b2a4d58abd7e

            SHA512

            e29ea10ada98c71a18273b04f44f385b120d4e8473e441ce5748cfa44a23648814f2656f429b85440157988c88de776c6ac008dc38bf09cbb746c230a46c69fe

          • C:\Users\Admin\AppData\Local\Temp\nsrFC25.tmp\nsExec.dll

            Filesize

            6KB

            MD5

            acc2b699edfea5bf5aae45aba3a41e96

            SHA1

            d2accf4d494e43ceb2cff69abe4dd17147d29cc2

            SHA256

            168a974eaa3f588d759db3f47c1a9fdc3494ba1fa1a73a84e5e3b2a4d58abd7e

            SHA512

            e29ea10ada98c71a18273b04f44f385b120d4e8473e441ce5748cfa44a23648814f2656f429b85440157988c88de776c6ac008dc38bf09cbb746c230a46c69fe

          • C:\Windows\SysWOW64\hfnapi.dll

            Filesize

            106KB

            MD5

            71df8c78f1529a176d13e6d6ad3a9886

            SHA1

            f837fd5a4eb4a38953a5bb5d86638793f6ec03a6

            SHA256

            96cbae8afcc7af76d68387376cfbbfdc892d2f2876da01f78405a23244834382

            SHA512

            458c3617bab9eb7ef684ec6cbbcf2dcc90c2c85711ab1b0a93ea9351b49e973545bed8c0761ebc49d27ef796891ed51fcb11295017b68570c1b22722d1ee1bdb

          • C:\Windows\SysWOW64\hfnapi.dll

            Filesize

            106KB

            MD5

            71df8c78f1529a176d13e6d6ad3a9886

            SHA1

            f837fd5a4eb4a38953a5bb5d86638793f6ec03a6

            SHA256

            96cbae8afcc7af76d68387376cfbbfdc892d2f2876da01f78405a23244834382

            SHA512

            458c3617bab9eb7ef684ec6cbbcf2dcc90c2c85711ab1b0a93ea9351b49e973545bed8c0761ebc49d27ef796891ed51fcb11295017b68570c1b22722d1ee1bdb

          • C:\Windows\SysWOW64\hfnapi.dll

            Filesize

            106KB

            MD5

            71df8c78f1529a176d13e6d6ad3a9886

            SHA1

            f837fd5a4eb4a38953a5bb5d86638793f6ec03a6

            SHA256

            96cbae8afcc7af76d68387376cfbbfdc892d2f2876da01f78405a23244834382

            SHA512

            458c3617bab9eb7ef684ec6cbbcf2dcc90c2c85711ab1b0a93ea9351b49e973545bed8c0761ebc49d27ef796891ed51fcb11295017b68570c1b22722d1ee1bdb

          • C:\Windows\SysWOW64\hfnapi.dll

            Filesize

            106KB

            MD5

            71df8c78f1529a176d13e6d6ad3a9886

            SHA1

            f837fd5a4eb4a38953a5bb5d86638793f6ec03a6

            SHA256

            96cbae8afcc7af76d68387376cfbbfdc892d2f2876da01f78405a23244834382

            SHA512

            458c3617bab9eb7ef684ec6cbbcf2dcc90c2c85711ab1b0a93ea9351b49e973545bed8c0761ebc49d27ef796891ed51fcb11295017b68570c1b22722d1ee1bdb

          • C:\Windows\SysWOW64\hfpapi.dll

            Filesize

            241KB

            MD5

            5347303c1ddbc5a8ee1315837c9f462a

            SHA1

            b126ffcdd070ba11ad111f4dacb1d8a0cf10ebd8

            SHA256

            5ea30bebc09c2262161d4b4fb24dec38bcec713d9ccbe07ef6fe2ef2ed30b037

            SHA512

            a7d4671f4a1cd16c7baecbc33d3f36e0885e16d405996a8de36189a2e35e0d8c448df80d58b67a5af20d4e1d5a2d979024330af4b3e5c0c267d50089048e169e

          • C:\Windows\SysWOW64\hfpapi.dll

            Filesize

            241KB

            MD5

            5347303c1ddbc5a8ee1315837c9f462a

            SHA1

            b126ffcdd070ba11ad111f4dacb1d8a0cf10ebd8

            SHA256

            5ea30bebc09c2262161d4b4fb24dec38bcec713d9ccbe07ef6fe2ef2ed30b037

            SHA512

            a7d4671f4a1cd16c7baecbc33d3f36e0885e16d405996a8de36189a2e35e0d8c448df80d58b67a5af20d4e1d5a2d979024330af4b3e5c0c267d50089048e169e

          • C:\Windows\SysWOW64\hfpapi.dll

            Filesize

            241KB

            MD5

            5347303c1ddbc5a8ee1315837c9f462a

            SHA1

            b126ffcdd070ba11ad111f4dacb1d8a0cf10ebd8

            SHA256

            5ea30bebc09c2262161d4b4fb24dec38bcec713d9ccbe07ef6fe2ef2ed30b037

            SHA512

            a7d4671f4a1cd16c7baecbc33d3f36e0885e16d405996a8de36189a2e35e0d8c448df80d58b67a5af20d4e1d5a2d979024330af4b3e5c0c267d50089048e169e

          • C:\Windows\SysWOW64\installd.exe

            Filesize

            108KB

            MD5

            619d6f59aab3658d24710ec900d79333

            SHA1

            6de2b837b6cd0803fbafc41f79becea7237341eb

            SHA256

            6ed50b6e8382be51397f29e60ec7d44d8285f1393bb0cd45ce4b975dfe0500db

            SHA512

            2d66a096b2ae61bf8eb588607be48afe9501b22b498e2da8dbcf3447f6112c3182ffd414d2cdd918b7f34cca0e0de776e48367252006a2a26f7314830caed436

          • C:\Windows\SysWOW64\installd.exe

            Filesize

            108KB

            MD5

            619d6f59aab3658d24710ec900d79333

            SHA1

            6de2b837b6cd0803fbafc41f79becea7237341eb

            SHA256

            6ed50b6e8382be51397f29e60ec7d44d8285f1393bb0cd45ce4b975dfe0500db

            SHA512

            2d66a096b2ae61bf8eb588607be48afe9501b22b498e2da8dbcf3447f6112c3182ffd414d2cdd918b7f34cca0e0de776e48367252006a2a26f7314830caed436

          • C:\Windows\SysWOW64\nethtsrv.exe

            Filesize

            176KB

            MD5

            56d9942e26e4bbe39b0b11a7d04c841c

            SHA1

            92e564d44d5c95079736bf35a6cb7e1bf3ab2089

            SHA256

            59d15a7ab08bedd8f17d5d845404e6723318438c1b9ef714c903a4a62cce9fa3

            SHA512

            818cd964436114dd0dd231d2269be6ca37e1ea9155a721d80352fc81e12bc4f78bf742a4cc45bd9585e4fe8ea659daa3128d0238cd938e421d4b46d37742b4e8

          • C:\Windows\SysWOW64\nethtsrv.exe

            Filesize

            176KB

            MD5

            56d9942e26e4bbe39b0b11a7d04c841c

            SHA1

            92e564d44d5c95079736bf35a6cb7e1bf3ab2089

            SHA256

            59d15a7ab08bedd8f17d5d845404e6723318438c1b9ef714c903a4a62cce9fa3

            SHA512

            818cd964436114dd0dd231d2269be6ca37e1ea9155a721d80352fc81e12bc4f78bf742a4cc45bd9585e4fe8ea659daa3128d0238cd938e421d4b46d37742b4e8

          • C:\Windows\SysWOW64\nethtsrv.exe

            Filesize

            176KB

            MD5

            56d9942e26e4bbe39b0b11a7d04c841c

            SHA1

            92e564d44d5c95079736bf35a6cb7e1bf3ab2089

            SHA256

            59d15a7ab08bedd8f17d5d845404e6723318438c1b9ef714c903a4a62cce9fa3

            SHA512

            818cd964436114dd0dd231d2269be6ca37e1ea9155a721d80352fc81e12bc4f78bf742a4cc45bd9585e4fe8ea659daa3128d0238cd938e421d4b46d37742b4e8

          • C:\Windows\SysWOW64\netupdsrv.exe

            Filesize

            158KB

            MD5

            8482589dca9f383e3a17e28048e8b9f4

            SHA1

            d7cd348ef9afb97718a6ea9b6c501e683db1ddec

            SHA256

            dcc64388de5f948e542e87b392a8197718a76138938138123b08e779d23f8d31

            SHA512

            f032bc19db084a83eba16966884e2d3d3fee3105b7d85a6ccb41aaf82023907e931be59f3b41b1c661ae546c31577bedc76f94faa72c958344e1ef6d38293532

          • C:\Windows\SysWOW64\netupdsrv.exe

            Filesize

            158KB

            MD5

            8482589dca9f383e3a17e28048e8b9f4

            SHA1

            d7cd348ef9afb97718a6ea9b6c501e683db1ddec

            SHA256

            dcc64388de5f948e542e87b392a8197718a76138938138123b08e779d23f8d31

            SHA512

            f032bc19db084a83eba16966884e2d3d3fee3105b7d85a6ccb41aaf82023907e931be59f3b41b1c661ae546c31577bedc76f94faa72c958344e1ef6d38293532

          • C:\Windows\SysWOW64\netupdsrv.exe

            Filesize

            158KB

            MD5

            8482589dca9f383e3a17e28048e8b9f4

            SHA1

            d7cd348ef9afb97718a6ea9b6c501e683db1ddec

            SHA256

            dcc64388de5f948e542e87b392a8197718a76138938138123b08e779d23f8d31

            SHA512

            f032bc19db084a83eba16966884e2d3d3fee3105b7d85a6ccb41aaf82023907e931be59f3b41b1c661ae546c31577bedc76f94faa72c958344e1ef6d38293532

          • memory/1100-168-0x0000000000360000-0x00000000007BE000-memory.dmp

            Filesize

            4.4MB

          • memory/1100-132-0x0000000000360000-0x00000000007BE000-memory.dmp

            Filesize

            4.4MB

          • memory/1140-153-0x0000000000000000-mapping.dmp

          • memory/1468-158-0x0000000000000000-mapping.dmp

          • memory/2120-137-0x0000000000000000-mapping.dmp

          • memory/2164-159-0x0000000000000000-mapping.dmp

          • memory/2220-147-0x0000000000000000-mapping.dmp

          • memory/2232-141-0x0000000000000000-mapping.dmp

          • memory/2352-140-0x0000000000000000-mapping.dmp

          • memory/4080-166-0x0000000000000000-mapping.dmp

          • memory/4152-142-0x0000000000000000-mapping.dmp

          • memory/4528-136-0x0000000000000000-mapping.dmp

          • memory/4696-165-0x0000000000000000-mapping.dmp