Analysis

  • max time kernel
    98s
  • 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 10:35

General

  • Target

    03de2d7b12fc1958ba75720cbefc7d737f261e0601678b890c05d9b5cc489949.exe

  • Size

    601KB

  • MD5

    d27980aef9009cae33bbbc2d40944f23

  • SHA1

    a272cc7460350b8ae7193065c5603427087ea5bb

  • SHA256

    03de2d7b12fc1958ba75720cbefc7d737f261e0601678b890c05d9b5cc489949

  • SHA512

    9bf50d2146036b54f6228148bba47cf0a2bbe950d4225098310edc2a11ea3b3ad22f30c331547b65cd09ae5a387621aca9c753fd893dc3a5b434a78f73b45908

  • SSDEEP

    12288:8Iny5DYTs81UmtqSWtKZ9LCpfibWsyiO6BXERBeigknwj:aUTsyYNta9WpBiO6BMei1nwj

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\03de2d7b12fc1958ba75720cbefc7d737f261e0601678b890c05d9b5cc489949.exe
    "C:\Users\Admin\AppData\Local\Temp\03de2d7b12fc1958ba75720cbefc7d737f261e0601678b890c05d9b5cc489949.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:864
    • C:\Windows\SysWOW64\net.exe
      net stop nethttpservice
      2⤵
      • Suspicious use of WriteProcessMemory
      PID:1268
      • C:\Windows\SysWOW64\net1.exe
        C:\Windows\system32\net1 stop nethttpservice
        3⤵
          PID:1056
      • C:\Windows\SysWOW64\net.exe
        net stop serviceupdater
        2⤵
        • Suspicious use of WriteProcessMemory
        PID:1696
        • C:\Windows\SysWOW64\net1.exe
          C:\Windows\system32\net1 stop serviceupdater
          3⤵
            PID:1872
        • C:\Windows\SysWOW64\installd.exe
          "C:\Windows\system32\installd.exe" nethfdrv
          2⤵
          • Executes dropped EXE
          • Loads dropped DLL
          PID:1500
        • C:\Windows\SysWOW64\nethtsrv.exe
          "C:\Windows\system32\nethtsrv.exe" -nfdi
          2⤵
          • Executes dropped EXE
          • Loads dropped DLL
          PID:1452
        • C:\Windows\SysWOW64\netupdsrv.exe
          "C:\Windows\system32\netupdsrv.exe" -nfdi
          2⤵
          • Executes dropped EXE
          PID:1976
        • C:\Windows\SysWOW64\net.exe
          net start nethttpservice
          2⤵
          • Suspicious use of WriteProcessMemory
          PID:1100
          • C:\Windows\SysWOW64\net1.exe
            C:\Windows\system32\net1 start nethttpservice
            3⤵
              PID:1620
          • C:\Windows\SysWOW64\net.exe
            net start serviceupdater
            2⤵
            • Suspicious use of WriteProcessMemory
            PID:1740
            • C:\Windows\SysWOW64\net1.exe
              C:\Windows\system32\net1 start serviceupdater
              3⤵
                PID:1388
          • C:\Windows\SysWOW64\nethtsrv.exe
            C:\Windows\SysWOW64\nethtsrv.exe
            1⤵
            • Executes dropped EXE
            • Loads dropped DLL
            • Suspicious use of AdjustPrivilegeToken
            PID:548
          • C:\Windows\SysWOW64\netupdsrv.exe
            C:\Windows\SysWOW64\netupdsrv.exe
            1⤵
            • Executes dropped EXE
            PID:1284

          Network

          MITRE ATT&CK Enterprise v6

          Replay Monitor

          Loading Replay Monitor...

          Downloads

          • C:\Windows\SysWOW64\hfnapi.dll

            Filesize

            106KB

            MD5

            41f4755d1f8c55d23611cdd6b8e1a398

            SHA1

            dd48636f8d59623e15d48c6f7f2a13af8436a68b

            SHA256

            087728545ceab0b6fa6051606c4475e40560cb8f3f1ac60ad8981b582806241b

            SHA512

            61b3c03be3cbba1374d52a22296794fd27ab30d5210423c1997ae9d196ea89c011eec11dbd4eb940064cf16c2eb3958c1baaa11c7d9a80059ea1d39ed0c96692

          • C:\Windows\SysWOW64\hfpapi.dll

            Filesize

            241KB

            MD5

            3fb011ca673abd9731c7d2ed8975fa7b

            SHA1

            9f7a7e4a85b659bcd99a78e377350260cdba25e4

            SHA256

            371f9113975ea39e73f593a8bcf34455d2b7d4e78990ab991bb753519b483b53

            SHA512

            72eb6ce82d3922b8f5c160ba13d3b3cf3b81c4812e69c12d6cc36d226475316579ae868c502f7954f7424d2ee1d4d66629aa2b21e77622ca4d82cd9813ef523b

          • C:\Windows\SysWOW64\installd.exe

            Filesize

            108KB

            MD5

            3d52711944a6df439433b58b976ca9d7

            SHA1

            191a218691f601838f052ed1c7ff81cdb4743b79

            SHA256

            61fd3474ffbe4325c889faa77c0cab6796ec55a286e1f4decee0cbebb71b79b7

            SHA512

            7a601456987e8ce3d842531e98fd740cfc5290ec77c0a967d16eb9b06c45ff4fe61a0fbcdce5aaaa0be9b66c1ba004c23de34a4b104c10d5ff1db45480177b13

          • C:\Windows\SysWOW64\nethtsrv.exe

            Filesize

            176KB

            MD5

            7183cc08608280bce542c4b5b667062b

            SHA1

            1d797ed968764360b1d502c8d1fd60d3612e4d15

            SHA256

            662bfeb8093f533d892d5125a7c6e6fa6a51f29303b8f84af3ac359b694ae422

            SHA512

            183a2ee64c01f5ee3da330de05f08ea4121d279bd18d7dc3f28666fdbe44f6cd2df1b4cc065969f078d227d75dd165f6506f6efdfb6726259eafed10fcf0143c

          • C:\Windows\SysWOW64\nethtsrv.exe

            Filesize

            176KB

            MD5

            7183cc08608280bce542c4b5b667062b

            SHA1

            1d797ed968764360b1d502c8d1fd60d3612e4d15

            SHA256

            662bfeb8093f533d892d5125a7c6e6fa6a51f29303b8f84af3ac359b694ae422

            SHA512

            183a2ee64c01f5ee3da330de05f08ea4121d279bd18d7dc3f28666fdbe44f6cd2df1b4cc065969f078d227d75dd165f6506f6efdfb6726259eafed10fcf0143c

          • C:\Windows\SysWOW64\netupdsrv.exe

            Filesize

            158KB

            MD5

            29e6cee5baceffa58a3f3445b49de0d9

            SHA1

            8aaccd58ab1db6ca52b735890bf99589f3895d17

            SHA256

            5229df0b79d63297702b899f5d1933f5e17fa44821e5208b9a743909ec983e62

            SHA512

            147a473ba4cfe56217f2ea695b0aec49aa76fc2a5032ff7290b242422f9ff1574ff4fe5a7ca1bf078d51b9f1b9bd7e6728767e50a3100db557cf4bd1c0997969

          • C:\Windows\SysWOW64\netupdsrv.exe

            Filesize

            158KB

            MD5

            29e6cee5baceffa58a3f3445b49de0d9

            SHA1

            8aaccd58ab1db6ca52b735890bf99589f3895d17

            SHA256

            5229df0b79d63297702b899f5d1933f5e17fa44821e5208b9a743909ec983e62

            SHA512

            147a473ba4cfe56217f2ea695b0aec49aa76fc2a5032ff7290b242422f9ff1574ff4fe5a7ca1bf078d51b9f1b9bd7e6728767e50a3100db557cf4bd1c0997969

          • \Users\Admin\AppData\Local\Temp\nsyEB2C.tmp\System.dll

            Filesize

            11KB

            MD5

            c17103ae9072a06da581dec998343fc1

            SHA1

            b72148c6bdfaada8b8c3f950e610ee7cf1da1f8d

            SHA256

            dc58d8ad81cacb0c1ed72e33bff8f23ea40b5252b5bb55d393a0903e6819ae2f

            SHA512

            d32a71aaef18e993f28096d536e41c4d016850721b31171513ce28bbd805a54fd290b7c3e9d935f72e676a1acfb4f0dcc89d95040a0dd29f2b6975855c18986f

          • \Users\Admin\AppData\Local\Temp\nsyEB2C.tmp\nsExec.dll

            Filesize

            6KB

            MD5

            acc2b699edfea5bf5aae45aba3a41e96

            SHA1

            d2accf4d494e43ceb2cff69abe4dd17147d29cc2

            SHA256

            168a974eaa3f588d759db3f47c1a9fdc3494ba1fa1a73a84e5e3b2a4d58abd7e

            SHA512

            e29ea10ada98c71a18273b04f44f385b120d4e8473e441ce5748cfa44a23648814f2656f429b85440157988c88de776c6ac008dc38bf09cbb746c230a46c69fe

          • \Users\Admin\AppData\Local\Temp\nsyEB2C.tmp\nsExec.dll

            Filesize

            6KB

            MD5

            acc2b699edfea5bf5aae45aba3a41e96

            SHA1

            d2accf4d494e43ceb2cff69abe4dd17147d29cc2

            SHA256

            168a974eaa3f588d759db3f47c1a9fdc3494ba1fa1a73a84e5e3b2a4d58abd7e

            SHA512

            e29ea10ada98c71a18273b04f44f385b120d4e8473e441ce5748cfa44a23648814f2656f429b85440157988c88de776c6ac008dc38bf09cbb746c230a46c69fe

          • \Users\Admin\AppData\Local\Temp\nsyEB2C.tmp\nsExec.dll

            Filesize

            6KB

            MD5

            acc2b699edfea5bf5aae45aba3a41e96

            SHA1

            d2accf4d494e43ceb2cff69abe4dd17147d29cc2

            SHA256

            168a974eaa3f588d759db3f47c1a9fdc3494ba1fa1a73a84e5e3b2a4d58abd7e

            SHA512

            e29ea10ada98c71a18273b04f44f385b120d4e8473e441ce5748cfa44a23648814f2656f429b85440157988c88de776c6ac008dc38bf09cbb746c230a46c69fe

          • \Users\Admin\AppData\Local\Temp\nsyEB2C.tmp\nsExec.dll

            Filesize

            6KB

            MD5

            acc2b699edfea5bf5aae45aba3a41e96

            SHA1

            d2accf4d494e43ceb2cff69abe4dd17147d29cc2

            SHA256

            168a974eaa3f588d759db3f47c1a9fdc3494ba1fa1a73a84e5e3b2a4d58abd7e

            SHA512

            e29ea10ada98c71a18273b04f44f385b120d4e8473e441ce5748cfa44a23648814f2656f429b85440157988c88de776c6ac008dc38bf09cbb746c230a46c69fe

          • \Windows\SysWOW64\hfnapi.dll

            Filesize

            106KB

            MD5

            41f4755d1f8c55d23611cdd6b8e1a398

            SHA1

            dd48636f8d59623e15d48c6f7f2a13af8436a68b

            SHA256

            087728545ceab0b6fa6051606c4475e40560cb8f3f1ac60ad8981b582806241b

            SHA512

            61b3c03be3cbba1374d52a22296794fd27ab30d5210423c1997ae9d196ea89c011eec11dbd4eb940064cf16c2eb3958c1baaa11c7d9a80059ea1d39ed0c96692

          • \Windows\SysWOW64\hfnapi.dll

            Filesize

            106KB

            MD5

            41f4755d1f8c55d23611cdd6b8e1a398

            SHA1

            dd48636f8d59623e15d48c6f7f2a13af8436a68b

            SHA256

            087728545ceab0b6fa6051606c4475e40560cb8f3f1ac60ad8981b582806241b

            SHA512

            61b3c03be3cbba1374d52a22296794fd27ab30d5210423c1997ae9d196ea89c011eec11dbd4eb940064cf16c2eb3958c1baaa11c7d9a80059ea1d39ed0c96692

          • \Windows\SysWOW64\hfnapi.dll

            Filesize

            106KB

            MD5

            41f4755d1f8c55d23611cdd6b8e1a398

            SHA1

            dd48636f8d59623e15d48c6f7f2a13af8436a68b

            SHA256

            087728545ceab0b6fa6051606c4475e40560cb8f3f1ac60ad8981b582806241b

            SHA512

            61b3c03be3cbba1374d52a22296794fd27ab30d5210423c1997ae9d196ea89c011eec11dbd4eb940064cf16c2eb3958c1baaa11c7d9a80059ea1d39ed0c96692

          • \Windows\SysWOW64\hfpapi.dll

            Filesize

            241KB

            MD5

            3fb011ca673abd9731c7d2ed8975fa7b

            SHA1

            9f7a7e4a85b659bcd99a78e377350260cdba25e4

            SHA256

            371f9113975ea39e73f593a8bcf34455d2b7d4e78990ab991bb753519b483b53

            SHA512

            72eb6ce82d3922b8f5c160ba13d3b3cf3b81c4812e69c12d6cc36d226475316579ae868c502f7954f7424d2ee1d4d66629aa2b21e77622ca4d82cd9813ef523b

          • \Windows\SysWOW64\hfpapi.dll

            Filesize

            241KB

            MD5

            3fb011ca673abd9731c7d2ed8975fa7b

            SHA1

            9f7a7e4a85b659bcd99a78e377350260cdba25e4

            SHA256

            371f9113975ea39e73f593a8bcf34455d2b7d4e78990ab991bb753519b483b53

            SHA512

            72eb6ce82d3922b8f5c160ba13d3b3cf3b81c4812e69c12d6cc36d226475316579ae868c502f7954f7424d2ee1d4d66629aa2b21e77622ca4d82cd9813ef523b

          • \Windows\SysWOW64\installd.exe

            Filesize

            108KB

            MD5

            3d52711944a6df439433b58b976ca9d7

            SHA1

            191a218691f601838f052ed1c7ff81cdb4743b79

            SHA256

            61fd3474ffbe4325c889faa77c0cab6796ec55a286e1f4decee0cbebb71b79b7

            SHA512

            7a601456987e8ce3d842531e98fd740cfc5290ec77c0a967d16eb9b06c45ff4fe61a0fbcdce5aaaa0be9b66c1ba004c23de34a4b104c10d5ff1db45480177b13

          • \Windows\SysWOW64\nethtsrv.exe

            Filesize

            176KB

            MD5

            7183cc08608280bce542c4b5b667062b

            SHA1

            1d797ed968764360b1d502c8d1fd60d3612e4d15

            SHA256

            662bfeb8093f533d892d5125a7c6e6fa6a51f29303b8f84af3ac359b694ae422

            SHA512

            183a2ee64c01f5ee3da330de05f08ea4121d279bd18d7dc3f28666fdbe44f6cd2df1b4cc065969f078d227d75dd165f6506f6efdfb6726259eafed10fcf0143c

          • \Windows\SysWOW64\netupdsrv.exe

            Filesize

            158KB

            MD5

            29e6cee5baceffa58a3f3445b49de0d9

            SHA1

            8aaccd58ab1db6ca52b735890bf99589f3895d17

            SHA256

            5229df0b79d63297702b899f5d1933f5e17fa44821e5208b9a743909ec983e62

            SHA512

            147a473ba4cfe56217f2ea695b0aec49aa76fc2a5032ff7290b242422f9ff1574ff4fe5a7ca1bf078d51b9f1b9bd7e6728767e50a3100db557cf4bd1c0997969

          • memory/864-91-0x0000000000360000-0x00000000007BE000-memory.dmp

            Filesize

            4.4MB

          • memory/864-75-0x0000000000360000-0x00000000007BE000-memory.dmp

            Filesize

            4.4MB

          • memory/864-59-0x0000000000360000-0x00000000007BE000-memory.dmp

            Filesize

            4.4MB

          • memory/864-54-0x0000000076B51000-0x0000000076B53000-memory.dmp

            Filesize

            8KB

          • memory/1056-58-0x0000000000000000-mapping.dmp

          • memory/1100-81-0x0000000000000000-mapping.dmp

          • memory/1268-57-0x0000000000000000-mapping.dmp

          • memory/1388-88-0x0000000000000000-mapping.dmp

          • memory/1452-70-0x0000000000000000-mapping.dmp

          • memory/1500-64-0x0000000000000000-mapping.dmp

          • memory/1620-82-0x0000000000000000-mapping.dmp

          • memory/1696-61-0x0000000000000000-mapping.dmp

          • memory/1740-87-0x0000000000000000-mapping.dmp

          • memory/1872-62-0x0000000000000000-mapping.dmp

          • memory/1976-77-0x0000000000000000-mapping.dmp