Analysis

  • max time kernel
    38s
  • max time network
    44s
  • platform
    windows7_x64
  • resource
    win7-20220812-en
  • resource tags

    arch:x64arch:x86image:win7-20220812-enlocale:en-usos:windows7-x64system
  • submitted
    23-11-2022 10:34

General

  • Target

    090bbbc08b51d0bb5bcdf7aa0db5b4ac1928c20d6643d7ec2da47203d18cefdf.exe

  • Size

    603KB

  • MD5

    e46d3512d9311d4d9f7d1ec0c942cfe9

  • SHA1

    771f7a973bf4a6e225dc20fee13df43f407fadc8

  • SHA256

    090bbbc08b51d0bb5bcdf7aa0db5b4ac1928c20d6643d7ec2da47203d18cefdf

  • SHA512

    e38255399a7cf02e67fc80d1438facec885e7e335fec6dcfc009e9be7baa080c0c2ca846830d104cbf799e626f369f63c82879f2af9f895f9e7239978f73d7ef

  • SSDEEP

    12288:PIny5DYTmIYMOH0dBxux7lDv1zVs1u3jQZ+D1rMYIFwIaG2oUGU:XUTmXMO0vxO1zVwucZO1r1I6DRoLU

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\090bbbc08b51d0bb5bcdf7aa0db5b4ac1928c20d6643d7ec2da47203d18cefdf.exe
    "C:\Users\Admin\AppData\Local\Temp\090bbbc08b51d0bb5bcdf7aa0db5b4ac1928c20d6643d7ec2da47203d18cefdf.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:1424
    • C:\Windows\SysWOW64\net.exe
      net stop nethttpservice
      2⤵
      • Suspicious use of WriteProcessMemory
      PID:1160
      • C:\Windows\SysWOW64\net1.exe
        C:\Windows\system32\net1 stop nethttpservice
        3⤵
          PID:904
      • C:\Windows\SysWOW64\net.exe
        net stop serviceupdater
        2⤵
        • Suspicious use of WriteProcessMemory
        PID:944
        • C:\Windows\SysWOW64\net1.exe
          C:\Windows\system32\net1 stop serviceupdater
          3⤵
            PID:784
        • C:\Windows\SysWOW64\installd.exe
          "C:\Windows\system32\installd.exe" nethfdrv
          2⤵
          • Executes dropped EXE
          • Loads dropped DLL
          PID:788
        • C:\Windows\SysWOW64\nethtsrv.exe
          "C:\Windows\system32\nethtsrv.exe" -nfdi
          2⤵
          • Executes dropped EXE
          • Loads dropped DLL
          PID:1784
        • C:\Windows\SysWOW64\netupdsrv.exe
          "C:\Windows\system32\netupdsrv.exe" -nfdi
          2⤵
          • Executes dropped EXE
          PID:1184
        • C:\Windows\SysWOW64\net.exe
          net start nethttpservice
          2⤵
          • Suspicious use of WriteProcessMemory
          PID:1124
          • C:\Windows\SysWOW64\net1.exe
            C:\Windows\system32\net1 start nethttpservice
            3⤵
              PID:840
          • C:\Windows\SysWOW64\net.exe
            net start serviceupdater
            2⤵
            • Suspicious use of WriteProcessMemory
            PID:1568
            • C:\Windows\SysWOW64\net1.exe
              C:\Windows\system32\net1 start serviceupdater
              3⤵
                PID:1548
          • C:\Windows\SysWOW64\nethtsrv.exe
            C:\Windows\SysWOW64\nethtsrv.exe
            1⤵
            • Executes dropped EXE
            • Loads dropped DLL
            • Suspicious use of AdjustPrivilegeToken
            PID:1256
          • C:\Windows\SysWOW64\netupdsrv.exe
            C:\Windows\SysWOW64\netupdsrv.exe
            1⤵
            • Executes dropped EXE
            PID:1656

          Network

          MITRE ATT&CK Enterprise v6

          Replay Monitor

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          Downloads

          • C:\Windows\SysWOW64\hfnapi.dll

            Filesize

            106KB

            MD5

            4a13a3a1b60f73521e09e689951df0bf

            SHA1

            5b4304810e1bd40c7bb5db391540ae17567bc77f

            SHA256

            e3102d2024191aa18944adb079c24ba2d6fe01baeb01913fab9d330330d2ca1a

            SHA512

            87bcd28a997145dcf6e0a0844e0ec842468dda451275bdc9a94870f6f31f4799b7b31c968071a464205e1060e5bc972c09c68b4069a965f1e2119c204a439de0

          • C:\Windows\SysWOW64\hfpapi.dll

            Filesize

            244KB

            MD5

            6c83e44e73810e38355098ebf1fd154d

            SHA1

            850f13da2fe895930f90d55a7a4fbd7c0e72e36a

            SHA256

            2dd00304775a44efe74213b15c857a1ded5f8e58eba0d03a33a906d2ae3e9079

            SHA512

            ec924f28aac1f1162dca923d63b63908647d04af8475bca49a0b54a3bcf4f885f8cfba96e2a4cd7c1eaeacc18535a7a016f0d2e65bed851ba787d55f01d8f801

          • C:\Windows\SysWOW64\installd.exe

            Filesize

            108KB

            MD5

            9aca5ef705286f0e3a0a17a689299632

            SHA1

            a42f701e3198e66d192b324f63a10a9147970383

            SHA256

            4dfedb38c67c08b07a50404c2147fd08321542dbe3d768434ac0e1e2121c45f5

            SHA512

            ca80ebd4765b2eb742ac9e09b69183e069155b1be085006a336f50315989771566ace2414d7eeb8c2d76be96f1341fdeb9768f069b06e68f0d6f02fa733f3e3f

          • C:\Windows\SysWOW64\nethtsrv.exe

            Filesize

            177KB

            MD5

            fb47e19de6167ac94e6f1d07531296ea

            SHA1

            74bbf37753c2df7b0f750c76dffa8779250f8a88

            SHA256

            7ef2c222553d686eb7743934bc29f8b0b30f89781e0227edeccdf94f8a6da76b

            SHA512

            cb633f5b02e6e27a1a44361a3c0fd111186036e7b8fbf94b25c9f97bd81801eb7fadac9a39ba1362c71489ba016879816a65a6ec556ae9ea60a6010f0c456894

          • C:\Windows\SysWOW64\nethtsrv.exe

            Filesize

            177KB

            MD5

            fb47e19de6167ac94e6f1d07531296ea

            SHA1

            74bbf37753c2df7b0f750c76dffa8779250f8a88

            SHA256

            7ef2c222553d686eb7743934bc29f8b0b30f89781e0227edeccdf94f8a6da76b

            SHA512

            cb633f5b02e6e27a1a44361a3c0fd111186036e7b8fbf94b25c9f97bd81801eb7fadac9a39ba1362c71489ba016879816a65a6ec556ae9ea60a6010f0c456894

          • C:\Windows\SysWOW64\netupdsrv.exe

            Filesize

            158KB

            MD5

            7ce5857ceeec1619f92a67709154eadd

            SHA1

            399a0a3accfeec01edb2c8e7a0885111d4b4229c

            SHA256

            0f7fa0b0bf41b1f6dce59bbe10750424fa045d0e064325b9bc437419fd781bbc

            SHA512

            cef184aab8fe048fd89b2eb290ef5cd717f8eb3c6b52daecce379e222544793845749e2816652536ae2ffba39710582cc9782964708f88c0f628720b7d9b2554

          • C:\Windows\SysWOW64\netupdsrv.exe

            Filesize

            158KB

            MD5

            7ce5857ceeec1619f92a67709154eadd

            SHA1

            399a0a3accfeec01edb2c8e7a0885111d4b4229c

            SHA256

            0f7fa0b0bf41b1f6dce59bbe10750424fa045d0e064325b9bc437419fd781bbc

            SHA512

            cef184aab8fe048fd89b2eb290ef5cd717f8eb3c6b52daecce379e222544793845749e2816652536ae2ffba39710582cc9782964708f88c0f628720b7d9b2554

          • \Users\Admin\AppData\Local\Temp\nsj62EB.tmp\System.dll

            Filesize

            11KB

            MD5

            c17103ae9072a06da581dec998343fc1

            SHA1

            b72148c6bdfaada8b8c3f950e610ee7cf1da1f8d

            SHA256

            dc58d8ad81cacb0c1ed72e33bff8f23ea40b5252b5bb55d393a0903e6819ae2f

            SHA512

            d32a71aaef18e993f28096d536e41c4d016850721b31171513ce28bbd805a54fd290b7c3e9d935f72e676a1acfb4f0dcc89d95040a0dd29f2b6975855c18986f

          • \Users\Admin\AppData\Local\Temp\nsj62EB.tmp\nsExec.dll

            Filesize

            6KB

            MD5

            acc2b699edfea5bf5aae45aba3a41e96

            SHA1

            d2accf4d494e43ceb2cff69abe4dd17147d29cc2

            SHA256

            168a974eaa3f588d759db3f47c1a9fdc3494ba1fa1a73a84e5e3b2a4d58abd7e

            SHA512

            e29ea10ada98c71a18273b04f44f385b120d4e8473e441ce5748cfa44a23648814f2656f429b85440157988c88de776c6ac008dc38bf09cbb746c230a46c69fe

          • \Users\Admin\AppData\Local\Temp\nsj62EB.tmp\nsExec.dll

            Filesize

            6KB

            MD5

            acc2b699edfea5bf5aae45aba3a41e96

            SHA1

            d2accf4d494e43ceb2cff69abe4dd17147d29cc2

            SHA256

            168a974eaa3f588d759db3f47c1a9fdc3494ba1fa1a73a84e5e3b2a4d58abd7e

            SHA512

            e29ea10ada98c71a18273b04f44f385b120d4e8473e441ce5748cfa44a23648814f2656f429b85440157988c88de776c6ac008dc38bf09cbb746c230a46c69fe

          • \Users\Admin\AppData\Local\Temp\nsj62EB.tmp\nsExec.dll

            Filesize

            6KB

            MD5

            acc2b699edfea5bf5aae45aba3a41e96

            SHA1

            d2accf4d494e43ceb2cff69abe4dd17147d29cc2

            SHA256

            168a974eaa3f588d759db3f47c1a9fdc3494ba1fa1a73a84e5e3b2a4d58abd7e

            SHA512

            e29ea10ada98c71a18273b04f44f385b120d4e8473e441ce5748cfa44a23648814f2656f429b85440157988c88de776c6ac008dc38bf09cbb746c230a46c69fe

          • \Users\Admin\AppData\Local\Temp\nsj62EB.tmp\nsExec.dll

            Filesize

            6KB

            MD5

            acc2b699edfea5bf5aae45aba3a41e96

            SHA1

            d2accf4d494e43ceb2cff69abe4dd17147d29cc2

            SHA256

            168a974eaa3f588d759db3f47c1a9fdc3494ba1fa1a73a84e5e3b2a4d58abd7e

            SHA512

            e29ea10ada98c71a18273b04f44f385b120d4e8473e441ce5748cfa44a23648814f2656f429b85440157988c88de776c6ac008dc38bf09cbb746c230a46c69fe

          • \Windows\SysWOW64\hfnapi.dll

            Filesize

            106KB

            MD5

            4a13a3a1b60f73521e09e689951df0bf

            SHA1

            5b4304810e1bd40c7bb5db391540ae17567bc77f

            SHA256

            e3102d2024191aa18944adb079c24ba2d6fe01baeb01913fab9d330330d2ca1a

            SHA512

            87bcd28a997145dcf6e0a0844e0ec842468dda451275bdc9a94870f6f31f4799b7b31c968071a464205e1060e5bc972c09c68b4069a965f1e2119c204a439de0

          • \Windows\SysWOW64\hfnapi.dll

            Filesize

            106KB

            MD5

            4a13a3a1b60f73521e09e689951df0bf

            SHA1

            5b4304810e1bd40c7bb5db391540ae17567bc77f

            SHA256

            e3102d2024191aa18944adb079c24ba2d6fe01baeb01913fab9d330330d2ca1a

            SHA512

            87bcd28a997145dcf6e0a0844e0ec842468dda451275bdc9a94870f6f31f4799b7b31c968071a464205e1060e5bc972c09c68b4069a965f1e2119c204a439de0

          • \Windows\SysWOW64\hfnapi.dll

            Filesize

            106KB

            MD5

            4a13a3a1b60f73521e09e689951df0bf

            SHA1

            5b4304810e1bd40c7bb5db391540ae17567bc77f

            SHA256

            e3102d2024191aa18944adb079c24ba2d6fe01baeb01913fab9d330330d2ca1a

            SHA512

            87bcd28a997145dcf6e0a0844e0ec842468dda451275bdc9a94870f6f31f4799b7b31c968071a464205e1060e5bc972c09c68b4069a965f1e2119c204a439de0

          • \Windows\SysWOW64\hfpapi.dll

            Filesize

            244KB

            MD5

            6c83e44e73810e38355098ebf1fd154d

            SHA1

            850f13da2fe895930f90d55a7a4fbd7c0e72e36a

            SHA256

            2dd00304775a44efe74213b15c857a1ded5f8e58eba0d03a33a906d2ae3e9079

            SHA512

            ec924f28aac1f1162dca923d63b63908647d04af8475bca49a0b54a3bcf4f885f8cfba96e2a4cd7c1eaeacc18535a7a016f0d2e65bed851ba787d55f01d8f801

          • \Windows\SysWOW64\hfpapi.dll

            Filesize

            244KB

            MD5

            6c83e44e73810e38355098ebf1fd154d

            SHA1

            850f13da2fe895930f90d55a7a4fbd7c0e72e36a

            SHA256

            2dd00304775a44efe74213b15c857a1ded5f8e58eba0d03a33a906d2ae3e9079

            SHA512

            ec924f28aac1f1162dca923d63b63908647d04af8475bca49a0b54a3bcf4f885f8cfba96e2a4cd7c1eaeacc18535a7a016f0d2e65bed851ba787d55f01d8f801

          • \Windows\SysWOW64\installd.exe

            Filesize

            108KB

            MD5

            9aca5ef705286f0e3a0a17a689299632

            SHA1

            a42f701e3198e66d192b324f63a10a9147970383

            SHA256

            4dfedb38c67c08b07a50404c2147fd08321542dbe3d768434ac0e1e2121c45f5

            SHA512

            ca80ebd4765b2eb742ac9e09b69183e069155b1be085006a336f50315989771566ace2414d7eeb8c2d76be96f1341fdeb9768f069b06e68f0d6f02fa733f3e3f

          • \Windows\SysWOW64\nethtsrv.exe

            Filesize

            177KB

            MD5

            fb47e19de6167ac94e6f1d07531296ea

            SHA1

            74bbf37753c2df7b0f750c76dffa8779250f8a88

            SHA256

            7ef2c222553d686eb7743934bc29f8b0b30f89781e0227edeccdf94f8a6da76b

            SHA512

            cb633f5b02e6e27a1a44361a3c0fd111186036e7b8fbf94b25c9f97bd81801eb7fadac9a39ba1362c71489ba016879816a65a6ec556ae9ea60a6010f0c456894

          • \Windows\SysWOW64\netupdsrv.exe

            Filesize

            158KB

            MD5

            7ce5857ceeec1619f92a67709154eadd

            SHA1

            399a0a3accfeec01edb2c8e7a0885111d4b4229c

            SHA256

            0f7fa0b0bf41b1f6dce59bbe10750424fa045d0e064325b9bc437419fd781bbc

            SHA512

            cef184aab8fe048fd89b2eb290ef5cd717f8eb3c6b52daecce379e222544793845749e2816652536ae2ffba39710582cc9782964708f88c0f628720b7d9b2554

          • memory/784-62-0x0000000000000000-mapping.dmp

          • memory/788-64-0x0000000000000000-mapping.dmp

          • memory/840-81-0x0000000000000000-mapping.dmp

          • memory/904-59-0x0000000000000000-mapping.dmp

          • memory/944-61-0x0000000000000000-mapping.dmp

          • memory/1124-80-0x0000000000000000-mapping.dmp

          • memory/1160-58-0x0000000000000000-mapping.dmp

          • memory/1184-76-0x0000000000000000-mapping.dmp

          • memory/1424-54-0x0000000076151000-0x0000000076153000-memory.dmp

            Filesize

            8KB

          • memory/1424-55-0x0000000000360000-0x00000000007BE000-memory.dmp

            Filesize

            4.4MB

          • memory/1424-90-0x0000000000360000-0x00000000007BE000-memory.dmp

            Filesize

            4.4MB

          • memory/1548-87-0x0000000000000000-mapping.dmp

          • memory/1568-86-0x0000000000000000-mapping.dmp

          • memory/1784-70-0x0000000000000000-mapping.dmp