Analysis

  • max time kernel
    63s
  • max time network
    34s
  • platform
    windows7_x64
  • resource
    win7-20221111-en
  • resource tags

    arch:x64arch:x86image:win7-20221111-enlocale:en-usos:windows7-x64system
  • submitted
    24/11/2022, 06:05

General

  • Target

    35b4bce568b0ca0aa882212828efa19758eddb2af21e2fa5df19461c8f5a0490.exe

  • Size

    695KB

  • MD5

    0058ba768775f53536bf66e6713c083c

  • SHA1

    f07ac3ff71e0c4cb9ad27f594a4f4d605743bf94

  • SHA256

    35b4bce568b0ca0aa882212828efa19758eddb2af21e2fa5df19461c8f5a0490

  • SHA512

    eb2beaedc21c7e1dc219cc5974a90e1a9e74649dd70f80c0d342c027b2a9a947fec54e05b78e0c69eba92d3dfb054ad3fd5348e452b26918b491d6ff33ec90ec

  • SSDEEP

    12288:wAbu3fQ+thk6EzvbfPfRu/Y1G/OlgDPlByVoY69y5FOp5Hnat4tFIQP2:wAbuPPEzzfHRlg3yBFilatGZ2

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\35b4bce568b0ca0aa882212828efa19758eddb2af21e2fa5df19461c8f5a0490.exe
    "C:\Users\Admin\AppData\Local\Temp\35b4bce568b0ca0aa882212828efa19758eddb2af21e2fa5df19461c8f5a0490.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:1340
    • C:\Windows\SysWOW64\net.exe
      net stop nethttpservice
      2⤵
      • Suspicious use of WriteProcessMemory
      PID:1200
      • C:\Windows\SysWOW64\net1.exe
        C:\Windows\system32\net1 stop nethttpservice
        3⤵
          PID:1560
      • C:\Windows\SysWOW64\net.exe
        net stop serviceupdater
        2⤵
        • Suspicious use of WriteProcessMemory
        PID:1576
        • C:\Windows\SysWOW64\net1.exe
          C:\Windows\system32\net1 stop serviceupdater
          3⤵
            PID:1464
        • C:\Windows\SysWOW64\installd.exe
          "C:\Windows\system32\installd.exe" nethfdrv
          2⤵
          • Executes dropped EXE
          • Loads dropped DLL
          PID:1888
        • C:\Windows\SysWOW64\nethtsrv.exe
          "C:\Windows\system32\nethtsrv.exe" -nfdi
          2⤵
          • Executes dropped EXE
          • Loads dropped DLL
          PID:1840
        • C:\Windows\SysWOW64\netupdsrv.exe
          "C:\Windows\system32\netupdsrv.exe" -nfdi
          2⤵
          • Executes dropped EXE
          PID:836
        • C:\Windows\SysWOW64\net.exe
          net start nethttpservice
          2⤵
          • Suspicious use of WriteProcessMemory
          PID:1796
          • C:\Windows\SysWOW64\net1.exe
            C:\Windows\system32\net1 start nethttpservice
            3⤵
              PID:1956
          • C:\Windows\SysWOW64\net.exe
            net start serviceupdater
            2⤵
            • Suspicious use of WriteProcessMemory
            PID:1352
            • C:\Windows\SysWOW64\net1.exe
              C:\Windows\system32\net1 start serviceupdater
              3⤵
                PID:596
          • C:\Windows\SysWOW64\nethtsrv.exe
            C:\Windows\SysWOW64\nethtsrv.exe
            1⤵
            • Executes dropped EXE
            • Loads dropped DLL
            • Suspicious use of AdjustPrivilegeToken
            PID:616
          • C:\Windows\SysWOW64\netupdsrv.exe
            C:\Windows\SysWOW64\netupdsrv.exe
            1⤵
            • Executes dropped EXE
            PID:1748

          Network

          MITRE ATT&CK Enterprise v6

          Replay Monitor

          Loading Replay Monitor...

          Downloads

          • C:\Windows\SysWOW64\hfnapi.dll

            Filesize

            106KB

            MD5

            de0ece1ac2c6751699f406a4ab719f69

            SHA1

            8fd2a1398d93ec80240149566b0311b53b0a4414

            SHA256

            5c93522b70a942c1d01034e9d41dd9ef2ee20f07ccf2443f02521055c94fb34a

            SHA512

            4639df200a6e035a47875ce6141da60f755e6e9b723b722f959fbe70d5a3d819747ca18557c32c2dd9342272d2c79a39a7ad34882cb0f6d66fa1d6d8e8561373

          • C:\Windows\SysWOW64\hfpapi.dll

            Filesize

            241KB

            MD5

            913fc2c1b6fd013b87b4dda77903b1e9

            SHA1

            4711dac5ecce39e68db0965fa30b3eecedc37785

            SHA256

            e540ed8d56b99cbb192197d87e9de5e1eae29d2504b3cc3a3d3854628c329acf

            SHA512

            608c18c488350ec9cd6c5fe687e9abcde8215b82567f2967ca09995e625b985fc6d6672e2b5d07212a1bbfef3b17febfe03875b4896d81ec6a63979bcfc0e477

          • C:\Windows\SysWOW64\installd.exe

            Filesize

            108KB

            MD5

            80b4872081e317d41dd92a31e77f8ff8

            SHA1

            a783a322704411d36f0fe372e7d45ca4ca52145a

            SHA256

            0d3e1f334e726388c856b192bfafa963ab06044dadc1852c952272ba393de972

            SHA512

            9fd2ee231b5e49b9d0948e4a9e6a4f578c1a93d67483460dd25fe921bb046bf6fd78a08dbd50cd4cd36d998fd2d0e1a0db15e69d8c16f328dfc91e116a10b56d

          • C:\Windows\SysWOW64\nethtsrv.exe

            Filesize

            176KB

            MD5

            cd340aa1b2d69dc022e06cc6b6ede1db

            SHA1

            5eff944b5f51d455acb81ec901c6ed4d35ea4d05

            SHA256

            2cdf19acb8d36968bd049a0f350ba0c66929e7e381e212ad76b1e580adf8affc

            SHA512

            d91808066b5cf530d15cb6a196e56a7d3434c04cb4e79ecf6f4dbc39285435753c1d93a510ee16c870146fdcd37dcbcca908c7eb771111a4b5691e19a1536f27

          • C:\Windows\SysWOW64\nethtsrv.exe

            Filesize

            176KB

            MD5

            cd340aa1b2d69dc022e06cc6b6ede1db

            SHA1

            5eff944b5f51d455acb81ec901c6ed4d35ea4d05

            SHA256

            2cdf19acb8d36968bd049a0f350ba0c66929e7e381e212ad76b1e580adf8affc

            SHA512

            d91808066b5cf530d15cb6a196e56a7d3434c04cb4e79ecf6f4dbc39285435753c1d93a510ee16c870146fdcd37dcbcca908c7eb771111a4b5691e19a1536f27

          • C:\Windows\SysWOW64\netupdsrv.exe

            Filesize

            159KB

            MD5

            557373efad5c8b7515f2e62894472ecc

            SHA1

            f8ef0cf0d1f3d7dfed4534af520d4999cda67e3a

            SHA256

            f0aea8683d06c22b196d5f837edc3d1633a5c89f057320fc61c96f920e8f9d94

            SHA512

            564c1494a7c1f58e7455a605321ed85e2b375868dc7c41c61d928421cb1f90b0cacc114392cb978dc7251b15eb0352d1b0093c0ca5547c817be798d3473b2c7b

          • C:\Windows\SysWOW64\netupdsrv.exe

            Filesize

            159KB

            MD5

            557373efad5c8b7515f2e62894472ecc

            SHA1

            f8ef0cf0d1f3d7dfed4534af520d4999cda67e3a

            SHA256

            f0aea8683d06c22b196d5f837edc3d1633a5c89f057320fc61c96f920e8f9d94

            SHA512

            564c1494a7c1f58e7455a605321ed85e2b375868dc7c41c61d928421cb1f90b0cacc114392cb978dc7251b15eb0352d1b0093c0ca5547c817be798d3473b2c7b

          • \Users\Admin\AppData\Local\Temp\nsoF1F0.tmp\System.dll

            Filesize

            11KB

            MD5

            c17103ae9072a06da581dec998343fc1

            SHA1

            b72148c6bdfaada8b8c3f950e610ee7cf1da1f8d

            SHA256

            dc58d8ad81cacb0c1ed72e33bff8f23ea40b5252b5bb55d393a0903e6819ae2f

            SHA512

            d32a71aaef18e993f28096d536e41c4d016850721b31171513ce28bbd805a54fd290b7c3e9d935f72e676a1acfb4f0dcc89d95040a0dd29f2b6975855c18986f

          • \Users\Admin\AppData\Local\Temp\nsoF1F0.tmp\nsExec.dll

            Filesize

            6KB

            MD5

            acc2b699edfea5bf5aae45aba3a41e96

            SHA1

            d2accf4d494e43ceb2cff69abe4dd17147d29cc2

            SHA256

            168a974eaa3f588d759db3f47c1a9fdc3494ba1fa1a73a84e5e3b2a4d58abd7e

            SHA512

            e29ea10ada98c71a18273b04f44f385b120d4e8473e441ce5748cfa44a23648814f2656f429b85440157988c88de776c6ac008dc38bf09cbb746c230a46c69fe

          • \Users\Admin\AppData\Local\Temp\nsoF1F0.tmp\nsExec.dll

            Filesize

            6KB

            MD5

            acc2b699edfea5bf5aae45aba3a41e96

            SHA1

            d2accf4d494e43ceb2cff69abe4dd17147d29cc2

            SHA256

            168a974eaa3f588d759db3f47c1a9fdc3494ba1fa1a73a84e5e3b2a4d58abd7e

            SHA512

            e29ea10ada98c71a18273b04f44f385b120d4e8473e441ce5748cfa44a23648814f2656f429b85440157988c88de776c6ac008dc38bf09cbb746c230a46c69fe

          • \Users\Admin\AppData\Local\Temp\nsoF1F0.tmp\nsExec.dll

            Filesize

            6KB

            MD5

            acc2b699edfea5bf5aae45aba3a41e96

            SHA1

            d2accf4d494e43ceb2cff69abe4dd17147d29cc2

            SHA256

            168a974eaa3f588d759db3f47c1a9fdc3494ba1fa1a73a84e5e3b2a4d58abd7e

            SHA512

            e29ea10ada98c71a18273b04f44f385b120d4e8473e441ce5748cfa44a23648814f2656f429b85440157988c88de776c6ac008dc38bf09cbb746c230a46c69fe

          • \Users\Admin\AppData\Local\Temp\nsoF1F0.tmp\nsExec.dll

            Filesize

            6KB

            MD5

            acc2b699edfea5bf5aae45aba3a41e96

            SHA1

            d2accf4d494e43ceb2cff69abe4dd17147d29cc2

            SHA256

            168a974eaa3f588d759db3f47c1a9fdc3494ba1fa1a73a84e5e3b2a4d58abd7e

            SHA512

            e29ea10ada98c71a18273b04f44f385b120d4e8473e441ce5748cfa44a23648814f2656f429b85440157988c88de776c6ac008dc38bf09cbb746c230a46c69fe

          • \Windows\SysWOW64\hfnapi.dll

            Filesize

            106KB

            MD5

            de0ece1ac2c6751699f406a4ab719f69

            SHA1

            8fd2a1398d93ec80240149566b0311b53b0a4414

            SHA256

            5c93522b70a942c1d01034e9d41dd9ef2ee20f07ccf2443f02521055c94fb34a

            SHA512

            4639df200a6e035a47875ce6141da60f755e6e9b723b722f959fbe70d5a3d819747ca18557c32c2dd9342272d2c79a39a7ad34882cb0f6d66fa1d6d8e8561373

          • \Windows\SysWOW64\hfnapi.dll

            Filesize

            106KB

            MD5

            de0ece1ac2c6751699f406a4ab719f69

            SHA1

            8fd2a1398d93ec80240149566b0311b53b0a4414

            SHA256

            5c93522b70a942c1d01034e9d41dd9ef2ee20f07ccf2443f02521055c94fb34a

            SHA512

            4639df200a6e035a47875ce6141da60f755e6e9b723b722f959fbe70d5a3d819747ca18557c32c2dd9342272d2c79a39a7ad34882cb0f6d66fa1d6d8e8561373

          • \Windows\SysWOW64\hfnapi.dll

            Filesize

            106KB

            MD5

            de0ece1ac2c6751699f406a4ab719f69

            SHA1

            8fd2a1398d93ec80240149566b0311b53b0a4414

            SHA256

            5c93522b70a942c1d01034e9d41dd9ef2ee20f07ccf2443f02521055c94fb34a

            SHA512

            4639df200a6e035a47875ce6141da60f755e6e9b723b722f959fbe70d5a3d819747ca18557c32c2dd9342272d2c79a39a7ad34882cb0f6d66fa1d6d8e8561373

          • \Windows\SysWOW64\hfpapi.dll

            Filesize

            241KB

            MD5

            913fc2c1b6fd013b87b4dda77903b1e9

            SHA1

            4711dac5ecce39e68db0965fa30b3eecedc37785

            SHA256

            e540ed8d56b99cbb192197d87e9de5e1eae29d2504b3cc3a3d3854628c329acf

            SHA512

            608c18c488350ec9cd6c5fe687e9abcde8215b82567f2967ca09995e625b985fc6d6672e2b5d07212a1bbfef3b17febfe03875b4896d81ec6a63979bcfc0e477

          • \Windows\SysWOW64\hfpapi.dll

            Filesize

            241KB

            MD5

            913fc2c1b6fd013b87b4dda77903b1e9

            SHA1

            4711dac5ecce39e68db0965fa30b3eecedc37785

            SHA256

            e540ed8d56b99cbb192197d87e9de5e1eae29d2504b3cc3a3d3854628c329acf

            SHA512

            608c18c488350ec9cd6c5fe687e9abcde8215b82567f2967ca09995e625b985fc6d6672e2b5d07212a1bbfef3b17febfe03875b4896d81ec6a63979bcfc0e477

          • \Windows\SysWOW64\installd.exe

            Filesize

            108KB

            MD5

            80b4872081e317d41dd92a31e77f8ff8

            SHA1

            a783a322704411d36f0fe372e7d45ca4ca52145a

            SHA256

            0d3e1f334e726388c856b192bfafa963ab06044dadc1852c952272ba393de972

            SHA512

            9fd2ee231b5e49b9d0948e4a9e6a4f578c1a93d67483460dd25fe921bb046bf6fd78a08dbd50cd4cd36d998fd2d0e1a0db15e69d8c16f328dfc91e116a10b56d

          • \Windows\SysWOW64\nethtsrv.exe

            Filesize

            176KB

            MD5

            cd340aa1b2d69dc022e06cc6b6ede1db

            SHA1

            5eff944b5f51d455acb81ec901c6ed4d35ea4d05

            SHA256

            2cdf19acb8d36968bd049a0f350ba0c66929e7e381e212ad76b1e580adf8affc

            SHA512

            d91808066b5cf530d15cb6a196e56a7d3434c04cb4e79ecf6f4dbc39285435753c1d93a510ee16c870146fdcd37dcbcca908c7eb771111a4b5691e19a1536f27

          • \Windows\SysWOW64\netupdsrv.exe

            Filesize

            159KB

            MD5

            557373efad5c8b7515f2e62894472ecc

            SHA1

            f8ef0cf0d1f3d7dfed4534af520d4999cda67e3a

            SHA256

            f0aea8683d06c22b196d5f837edc3d1633a5c89f057320fc61c96f920e8f9d94

            SHA512

            564c1494a7c1f58e7455a605321ed85e2b375868dc7c41c61d928421cb1f90b0cacc114392cb978dc7251b15eb0352d1b0093c0ca5547c817be798d3473b2c7b

          • memory/1340-54-0x0000000075E61000-0x0000000075E63000-memory.dmp

            Filesize

            8KB

          • memory/1340-91-0x0000000000340000-0x00000000007BE000-memory.dmp

            Filesize

            4.5MB

          • memory/1340-57-0x0000000000340000-0x00000000007BE000-memory.dmp

            Filesize

            4.5MB

          • memory/1340-55-0x0000000000340000-0x00000000007BE000-memory.dmp

            Filesize

            4.5MB