Analysis

  • max time kernel
    46s
  • max time network
    35s
  • platform
    windows7_x64
  • resource
    win7-20221111-en
  • resource tags

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

General

  • Target

    df38b6c6a861e717c95280e4f4f8b3841456f9f2e01d3a3cf97577daf6a13cc2.exe

  • Size

    601KB

  • MD5

    0268955717e2772854ec64e4ef135b73

  • SHA1

    f9ef17ae2b13dfd6842ae705f1cbfd90fc81b468

  • SHA256

    df38b6c6a861e717c95280e4f4f8b3841456f9f2e01d3a3cf97577daf6a13cc2

  • SHA512

    56d7ab616f0130d844034fe109d1bcf4ad9ef1ec8fcbb514ffce67be3fbbb482424b08e7b0ef127c143d68794b72af05e10ac46148adb186b931f7adab0e8423

  • SSDEEP

    12288:KIny5DYTt9CoBObMNbvxg4baJIcRlX63DbIrm30SRCt:MUTt9CaOAVvxfpcH6zbI63rMt

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\df38b6c6a861e717c95280e4f4f8b3841456f9f2e01d3a3cf97577daf6a13cc2.exe
    "C:\Users\Admin\AppData\Local\Temp\df38b6c6a861e717c95280e4f4f8b3841456f9f2e01d3a3cf97577daf6a13cc2.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:316
    • C:\Windows\SysWOW64\net.exe
      net stop nethttpservice
      2⤵
      • Suspicious use of WriteProcessMemory
      PID:676
      • C:\Windows\SysWOW64\net1.exe
        C:\Windows\system32\net1 stop nethttpservice
        3⤵
          PID:784
      • C:\Windows\SysWOW64\net.exe
        net stop serviceupdater
        2⤵
        • Suspicious use of WriteProcessMemory
        PID:896
        • C:\Windows\SysWOW64\net1.exe
          C:\Windows\system32\net1 stop serviceupdater
          3⤵
            PID:916
        • C:\Windows\SysWOW64\installd.exe
          "C:\Windows\system32\installd.exe" nethfdrv
          2⤵
          • Executes dropped EXE
          • Loads dropped DLL
          PID:1592
        • C:\Windows\SysWOW64\nethtsrv.exe
          "C:\Windows\system32\nethtsrv.exe" -nfdi
          2⤵
          • Executes dropped EXE
          • Loads dropped DLL
          PID:1588
        • C:\Windows\SysWOW64\netupdsrv.exe
          "C:\Windows\system32\netupdsrv.exe" -nfdi
          2⤵
          • Executes dropped EXE
          PID:1824
        • C:\Windows\SysWOW64\net.exe
          net start nethttpservice
          2⤵
          • Suspicious use of WriteProcessMemory
          PID:912
          • C:\Windows\SysWOW64\net1.exe
            C:\Windows\system32\net1 start nethttpservice
            3⤵
              PID:1184
          • C:\Windows\SysWOW64\net.exe
            net start serviceupdater
            2⤵
            • Suspicious use of WriteProcessMemory
            PID:2036
            • C:\Windows\SysWOW64\net1.exe
              C:\Windows\system32\net1 start serviceupdater
              3⤵
                PID:1336
          • C:\Windows\SysWOW64\nethtsrv.exe
            C:\Windows\SysWOW64\nethtsrv.exe
            1⤵
            • Executes dropped EXE
            • Loads dropped DLL
            • Suspicious use of AdjustPrivilegeToken
            PID:1724
          • C:\Windows\SysWOW64\netupdsrv.exe
            C:\Windows\SysWOW64\netupdsrv.exe
            1⤵
            • Executes dropped EXE
            PID:1344

          Network

          MITRE ATT&CK Enterprise v6

          Replay Monitor

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          Downloads

          • C:\Windows\SysWOW64\hfnapi.dll

            Filesize

            106KB

            MD5

            862daf046edb2b69f92adf2ffc99a32a

            SHA1

            58bff97d9247d52efeaa045dffffd5fac49b7dfa

            SHA256

            2825bd1a6ffd88a3503b7a5e8b3d524bb9f0d1f96acc8d975bf49e3a6df2d15f

            SHA512

            70ae643ba9e3344c7ab7aceb0758100db7cb3733993de303a1d9a68041674c5a0407c655371014f624c4635de22ee27e157989c9ee0fc89d958a34f8c5970e77

          • C:\Windows\SysWOW64\hfpapi.dll

            Filesize

            241KB

            MD5

            1e6b66256a2639517424e55c62eb1548

            SHA1

            a44e6ddf7afe0e42af0c8ceae0f79f942318ab65

            SHA256

            e70cc411c6c734e1a0d340c989d75672acd06d13eac099abfe4333688afe35f6

            SHA512

            3cb70f60209df5c51d41801aa07e08d85c47ad11cf36d747f74bfa3fec44e32af8d06117378d65a61b21cf2ba9da64f35b722a338c628982f7c5b142898f1538

          • C:\Windows\SysWOW64\installd.exe

            Filesize

            108KB

            MD5

            c9e3e1d4f1fd4b1fd307ccc4c24f83e7

            SHA1

            723e848381faa36cff4fa891a7bb61d758e729c6

            SHA256

            eb5370e97f65ca0487096ff9305b0eeded40a2dc86694954b54ad541fb489308

            SHA512

            2b926a82098969435b6a089e693ad5732d226f0632f4063d062abae9c048fd99f341bd33f4138eab8dd0ecc226ed3203ad565bea8b09c64116a4b1ff44ea796e

          • C:\Windows\SysWOW64\nethtsrv.exe

            Filesize

            176KB

            MD5

            21e50a8247c6d0a022c7f53f686cc0b9

            SHA1

            a474190fbaf64f98053b8912f0e86d1d105bf60b

            SHA256

            bc85fdb19f215d6d4b22a829570abe24fa9183aa0527e36007b96e98c4db64b1

            SHA512

            c66f2cd507aa12879341407d673c02eb397f7fe00b3e4b969ac3bf5f1e00b70ba543497b83bfa46a4ced03b1fc0d61ee2c66befc04ab5bfd91978c985bc0a303

          • C:\Windows\SysWOW64\nethtsrv.exe

            Filesize

            176KB

            MD5

            21e50a8247c6d0a022c7f53f686cc0b9

            SHA1

            a474190fbaf64f98053b8912f0e86d1d105bf60b

            SHA256

            bc85fdb19f215d6d4b22a829570abe24fa9183aa0527e36007b96e98c4db64b1

            SHA512

            c66f2cd507aa12879341407d673c02eb397f7fe00b3e4b969ac3bf5f1e00b70ba543497b83bfa46a4ced03b1fc0d61ee2c66befc04ab5bfd91978c985bc0a303

          • C:\Windows\SysWOW64\netupdsrv.exe

            Filesize

            158KB

            MD5

            1eef8a060380df12cee181089c78a6a3

            SHA1

            63df4685809cde19ffa37d6da2cee3854a05100f

            SHA256

            33ec888728b19c9ff4b26d7973b79b570d479fd86cb957bd17f4ff01cc9e29af

            SHA512

            626413cc28fd542b79026f16bd96109d2c01bc9cdfd44adffb6ae490ceff11d900e9996e4a2bb618afd31bd741b8750741d407efcd59fa3c5534fb217ec3328f

          • C:\Windows\SysWOW64\netupdsrv.exe

            Filesize

            158KB

            MD5

            1eef8a060380df12cee181089c78a6a3

            SHA1

            63df4685809cde19ffa37d6da2cee3854a05100f

            SHA256

            33ec888728b19c9ff4b26d7973b79b570d479fd86cb957bd17f4ff01cc9e29af

            SHA512

            626413cc28fd542b79026f16bd96109d2c01bc9cdfd44adffb6ae490ceff11d900e9996e4a2bb618afd31bd741b8750741d407efcd59fa3c5534fb217ec3328f

          • \Users\Admin\AppData\Local\Temp\nsyACB6.tmp\System.dll

            Filesize

            11KB

            MD5

            c17103ae9072a06da581dec998343fc1

            SHA1

            b72148c6bdfaada8b8c3f950e610ee7cf1da1f8d

            SHA256

            dc58d8ad81cacb0c1ed72e33bff8f23ea40b5252b5bb55d393a0903e6819ae2f

            SHA512

            d32a71aaef18e993f28096d536e41c4d016850721b31171513ce28bbd805a54fd290b7c3e9d935f72e676a1acfb4f0dcc89d95040a0dd29f2b6975855c18986f

          • \Users\Admin\AppData\Local\Temp\nsyACB6.tmp\nsExec.dll

            Filesize

            6KB

            MD5

            acc2b699edfea5bf5aae45aba3a41e96

            SHA1

            d2accf4d494e43ceb2cff69abe4dd17147d29cc2

            SHA256

            168a974eaa3f588d759db3f47c1a9fdc3494ba1fa1a73a84e5e3b2a4d58abd7e

            SHA512

            e29ea10ada98c71a18273b04f44f385b120d4e8473e441ce5748cfa44a23648814f2656f429b85440157988c88de776c6ac008dc38bf09cbb746c230a46c69fe

          • \Users\Admin\AppData\Local\Temp\nsyACB6.tmp\nsExec.dll

            Filesize

            6KB

            MD5

            acc2b699edfea5bf5aae45aba3a41e96

            SHA1

            d2accf4d494e43ceb2cff69abe4dd17147d29cc2

            SHA256

            168a974eaa3f588d759db3f47c1a9fdc3494ba1fa1a73a84e5e3b2a4d58abd7e

            SHA512

            e29ea10ada98c71a18273b04f44f385b120d4e8473e441ce5748cfa44a23648814f2656f429b85440157988c88de776c6ac008dc38bf09cbb746c230a46c69fe

          • \Users\Admin\AppData\Local\Temp\nsyACB6.tmp\nsExec.dll

            Filesize

            6KB

            MD5

            acc2b699edfea5bf5aae45aba3a41e96

            SHA1

            d2accf4d494e43ceb2cff69abe4dd17147d29cc2

            SHA256

            168a974eaa3f588d759db3f47c1a9fdc3494ba1fa1a73a84e5e3b2a4d58abd7e

            SHA512

            e29ea10ada98c71a18273b04f44f385b120d4e8473e441ce5748cfa44a23648814f2656f429b85440157988c88de776c6ac008dc38bf09cbb746c230a46c69fe

          • \Users\Admin\AppData\Local\Temp\nsyACB6.tmp\nsExec.dll

            Filesize

            6KB

            MD5

            acc2b699edfea5bf5aae45aba3a41e96

            SHA1

            d2accf4d494e43ceb2cff69abe4dd17147d29cc2

            SHA256

            168a974eaa3f588d759db3f47c1a9fdc3494ba1fa1a73a84e5e3b2a4d58abd7e

            SHA512

            e29ea10ada98c71a18273b04f44f385b120d4e8473e441ce5748cfa44a23648814f2656f429b85440157988c88de776c6ac008dc38bf09cbb746c230a46c69fe

          • \Windows\SysWOW64\hfnapi.dll

            Filesize

            106KB

            MD5

            862daf046edb2b69f92adf2ffc99a32a

            SHA1

            58bff97d9247d52efeaa045dffffd5fac49b7dfa

            SHA256

            2825bd1a6ffd88a3503b7a5e8b3d524bb9f0d1f96acc8d975bf49e3a6df2d15f

            SHA512

            70ae643ba9e3344c7ab7aceb0758100db7cb3733993de303a1d9a68041674c5a0407c655371014f624c4635de22ee27e157989c9ee0fc89d958a34f8c5970e77

          • \Windows\SysWOW64\hfnapi.dll

            Filesize

            106KB

            MD5

            862daf046edb2b69f92adf2ffc99a32a

            SHA1

            58bff97d9247d52efeaa045dffffd5fac49b7dfa

            SHA256

            2825bd1a6ffd88a3503b7a5e8b3d524bb9f0d1f96acc8d975bf49e3a6df2d15f

            SHA512

            70ae643ba9e3344c7ab7aceb0758100db7cb3733993de303a1d9a68041674c5a0407c655371014f624c4635de22ee27e157989c9ee0fc89d958a34f8c5970e77

          • \Windows\SysWOW64\hfnapi.dll

            Filesize

            106KB

            MD5

            862daf046edb2b69f92adf2ffc99a32a

            SHA1

            58bff97d9247d52efeaa045dffffd5fac49b7dfa

            SHA256

            2825bd1a6ffd88a3503b7a5e8b3d524bb9f0d1f96acc8d975bf49e3a6df2d15f

            SHA512

            70ae643ba9e3344c7ab7aceb0758100db7cb3733993de303a1d9a68041674c5a0407c655371014f624c4635de22ee27e157989c9ee0fc89d958a34f8c5970e77

          • \Windows\SysWOW64\hfpapi.dll

            Filesize

            241KB

            MD5

            1e6b66256a2639517424e55c62eb1548

            SHA1

            a44e6ddf7afe0e42af0c8ceae0f79f942318ab65

            SHA256

            e70cc411c6c734e1a0d340c989d75672acd06d13eac099abfe4333688afe35f6

            SHA512

            3cb70f60209df5c51d41801aa07e08d85c47ad11cf36d747f74bfa3fec44e32af8d06117378d65a61b21cf2ba9da64f35b722a338c628982f7c5b142898f1538

          • \Windows\SysWOW64\hfpapi.dll

            Filesize

            241KB

            MD5

            1e6b66256a2639517424e55c62eb1548

            SHA1

            a44e6ddf7afe0e42af0c8ceae0f79f942318ab65

            SHA256

            e70cc411c6c734e1a0d340c989d75672acd06d13eac099abfe4333688afe35f6

            SHA512

            3cb70f60209df5c51d41801aa07e08d85c47ad11cf36d747f74bfa3fec44e32af8d06117378d65a61b21cf2ba9da64f35b722a338c628982f7c5b142898f1538

          • \Windows\SysWOW64\installd.exe

            Filesize

            108KB

            MD5

            c9e3e1d4f1fd4b1fd307ccc4c24f83e7

            SHA1

            723e848381faa36cff4fa891a7bb61d758e729c6

            SHA256

            eb5370e97f65ca0487096ff9305b0eeded40a2dc86694954b54ad541fb489308

            SHA512

            2b926a82098969435b6a089e693ad5732d226f0632f4063d062abae9c048fd99f341bd33f4138eab8dd0ecc226ed3203ad565bea8b09c64116a4b1ff44ea796e

          • \Windows\SysWOW64\nethtsrv.exe

            Filesize

            176KB

            MD5

            21e50a8247c6d0a022c7f53f686cc0b9

            SHA1

            a474190fbaf64f98053b8912f0e86d1d105bf60b

            SHA256

            bc85fdb19f215d6d4b22a829570abe24fa9183aa0527e36007b96e98c4db64b1

            SHA512

            c66f2cd507aa12879341407d673c02eb397f7fe00b3e4b969ac3bf5f1e00b70ba543497b83bfa46a4ced03b1fc0d61ee2c66befc04ab5bfd91978c985bc0a303

          • \Windows\SysWOW64\netupdsrv.exe

            Filesize

            158KB

            MD5

            1eef8a060380df12cee181089c78a6a3

            SHA1

            63df4685809cde19ffa37d6da2cee3854a05100f

            SHA256

            33ec888728b19c9ff4b26d7973b79b570d479fd86cb957bd17f4ff01cc9e29af

            SHA512

            626413cc28fd542b79026f16bd96109d2c01bc9cdfd44adffb6ae490ceff11d900e9996e4a2bb618afd31bd741b8750741d407efcd59fa3c5534fb217ec3328f

          • memory/316-62-0x0000000000360000-0x00000000007BE000-memory.dmp

            Filesize

            4.4MB

          • memory/316-90-0x0000000000360000-0x00000000007BE000-memory.dmp

            Filesize

            4.4MB

          • memory/316-54-0x0000000075891000-0x0000000075893000-memory.dmp

            Filesize

            8KB

          • memory/676-57-0x0000000000000000-mapping.dmp

          • memory/784-58-0x0000000000000000-mapping.dmp

          • memory/896-60-0x0000000000000000-mapping.dmp

          • memory/912-80-0x0000000000000000-mapping.dmp

          • memory/916-61-0x0000000000000000-mapping.dmp

          • memory/1184-81-0x0000000000000000-mapping.dmp

          • memory/1336-87-0x0000000000000000-mapping.dmp

          • memory/1588-70-0x0000000000000000-mapping.dmp

          • memory/1592-64-0x0000000000000000-mapping.dmp

          • memory/1824-76-0x0000000000000000-mapping.dmp

          • memory/2036-86-0x0000000000000000-mapping.dmp