Analysis

  • max time kernel
    176s
  • max time network
    214s
  • 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 10:56

General

  • Target

    54c06c40ca493723f8a7adfa8f81d6efff9dea0123c080c20c2b08443bfefb56.exe

  • Size

    446KB

  • MD5

    d141690e4b38011b41fdc209ae7c2efd

  • SHA1

    61841c062d376c6466fdbcc984cae7ab29be0a06

  • SHA256

    54c06c40ca493723f8a7adfa8f81d6efff9dea0123c080c20c2b08443bfefb56

  • SHA512

    5c0d6742c2af4b8f1a635044306d18e117e42b9843d64972a91f6cf8467b49614bd6fdc868bfbd61b9bcbcad9010daff0d017cdb141728d350517892357f5b69

  • SSDEEP

    12288:RXgt0rfmU628WdQTxVAdJJyzNbcY7cxXYF+jp:RXgtMuzWClVOJYpL7cxIct

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\54c06c40ca493723f8a7adfa8f81d6efff9dea0123c080c20c2b08443bfefb56.exe
    "C:\Users\Admin\AppData\Local\Temp\54c06c40ca493723f8a7adfa8f81d6efff9dea0123c080c20c2b08443bfefb56.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:2236
    • C:\Windows\SysWOW64\net.exe
      net stop nethttpservice
      2⤵
      • Suspicious use of WriteProcessMemory
      PID:3164
      • C:\Windows\SysWOW64\net1.exe
        C:\Windows\system32\net1 stop nethttpservice
        3⤵
          PID:3900
      • C:\Windows\SysWOW64\net.exe
        net stop serviceupdater
        2⤵
        • Suspicious use of WriteProcessMemory
        PID:4428
        • C:\Windows\SysWOW64\net1.exe
          C:\Windows\system32\net1 stop serviceupdater
          3⤵
            PID:1168
        • C:\Windows\SysWOW64\installd.exe
          "C:\Windows\system32\installd.exe" nethfdrv
          2⤵
          • Executes dropped EXE
          • Loads dropped DLL
          PID:2536
        • C:\Windows\SysWOW64\nethtsrv.exe
          "C:\Windows\system32\nethtsrv.exe" -nfdi
          2⤵
          • Executes dropped EXE
          • Loads dropped DLL
          PID:1468
        • C:\Windows\SysWOW64\netupdsrv.exe
          "C:\Windows\system32\netupdsrv.exe" -nfdi
          2⤵
          • Executes dropped EXE
          PID:4412
        • C:\Windows\SysWOW64\net.exe
          net start nethttpservice
          2⤵
          • Suspicious use of WriteProcessMemory
          PID:3280
          • C:\Windows\SysWOW64\net1.exe
            C:\Windows\system32\net1 start nethttpservice
            3⤵
              PID:4976
          • C:\Windows\SysWOW64\net.exe
            net start serviceupdater
            2⤵
            • Suspicious use of WriteProcessMemory
            PID:4116
            • C:\Windows\SysWOW64\net1.exe
              C:\Windows\system32\net1 start serviceupdater
              3⤵
                PID:3144
          • 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:1012
          • C:\Windows\SysWOW64\netupdsrv.exe
            C:\Windows\SysWOW64\netupdsrv.exe
            1⤵
            • Executes dropped EXE
            PID:4484

          Network

          MITRE ATT&CK Enterprise v6

          Replay Monitor

          Loading Replay Monitor...

          Downloads

          • C:\Users\Admin\AppData\Local\Temp\nsuD0FE.tmp\System.dll

            Filesize

            11KB

            MD5

            c17103ae9072a06da581dec998343fc1

            SHA1

            b72148c6bdfaada8b8c3f950e610ee7cf1da1f8d

            SHA256

            dc58d8ad81cacb0c1ed72e33bff8f23ea40b5252b5bb55d393a0903e6819ae2f

            SHA512

            d32a71aaef18e993f28096d536e41c4d016850721b31171513ce28bbd805a54fd290b7c3e9d935f72e676a1acfb4f0dcc89d95040a0dd29f2b6975855c18986f

          • C:\Users\Admin\AppData\Local\Temp\nsuD0FE.tmp\nsExec.dll

            Filesize

            6KB

            MD5

            acc2b699edfea5bf5aae45aba3a41e96

            SHA1

            d2accf4d494e43ceb2cff69abe4dd17147d29cc2

            SHA256

            168a974eaa3f588d759db3f47c1a9fdc3494ba1fa1a73a84e5e3b2a4d58abd7e

            SHA512

            e29ea10ada98c71a18273b04f44f385b120d4e8473e441ce5748cfa44a23648814f2656f429b85440157988c88de776c6ac008dc38bf09cbb746c230a46c69fe

          • C:\Users\Admin\AppData\Local\Temp\nsuD0FE.tmp\nsExec.dll

            Filesize

            6KB

            MD5

            acc2b699edfea5bf5aae45aba3a41e96

            SHA1

            d2accf4d494e43ceb2cff69abe4dd17147d29cc2

            SHA256

            168a974eaa3f588d759db3f47c1a9fdc3494ba1fa1a73a84e5e3b2a4d58abd7e

            SHA512

            e29ea10ada98c71a18273b04f44f385b120d4e8473e441ce5748cfa44a23648814f2656f429b85440157988c88de776c6ac008dc38bf09cbb746c230a46c69fe

          • C:\Users\Admin\AppData\Local\Temp\nsuD0FE.tmp\nsExec.dll

            Filesize

            6KB

            MD5

            acc2b699edfea5bf5aae45aba3a41e96

            SHA1

            d2accf4d494e43ceb2cff69abe4dd17147d29cc2

            SHA256

            168a974eaa3f588d759db3f47c1a9fdc3494ba1fa1a73a84e5e3b2a4d58abd7e

            SHA512

            e29ea10ada98c71a18273b04f44f385b120d4e8473e441ce5748cfa44a23648814f2656f429b85440157988c88de776c6ac008dc38bf09cbb746c230a46c69fe

          • C:\Users\Admin\AppData\Local\Temp\nsuD0FE.tmp\nsExec.dll

            Filesize

            6KB

            MD5

            acc2b699edfea5bf5aae45aba3a41e96

            SHA1

            d2accf4d494e43ceb2cff69abe4dd17147d29cc2

            SHA256

            168a974eaa3f588d759db3f47c1a9fdc3494ba1fa1a73a84e5e3b2a4d58abd7e

            SHA512

            e29ea10ada98c71a18273b04f44f385b120d4e8473e441ce5748cfa44a23648814f2656f429b85440157988c88de776c6ac008dc38bf09cbb746c230a46c69fe

          • C:\Users\Admin\AppData\Local\Temp\nsuD0FE.tmp\nsExec.dll

            Filesize

            6KB

            MD5

            acc2b699edfea5bf5aae45aba3a41e96

            SHA1

            d2accf4d494e43ceb2cff69abe4dd17147d29cc2

            SHA256

            168a974eaa3f588d759db3f47c1a9fdc3494ba1fa1a73a84e5e3b2a4d58abd7e

            SHA512

            e29ea10ada98c71a18273b04f44f385b120d4e8473e441ce5748cfa44a23648814f2656f429b85440157988c88de776c6ac008dc38bf09cbb746c230a46c69fe

          • C:\Users\Admin\AppData\Local\Temp\nsuD0FE.tmp\nsExec.dll

            Filesize

            6KB

            MD5

            acc2b699edfea5bf5aae45aba3a41e96

            SHA1

            d2accf4d494e43ceb2cff69abe4dd17147d29cc2

            SHA256

            168a974eaa3f588d759db3f47c1a9fdc3494ba1fa1a73a84e5e3b2a4d58abd7e

            SHA512

            e29ea10ada98c71a18273b04f44f385b120d4e8473e441ce5748cfa44a23648814f2656f429b85440157988c88de776c6ac008dc38bf09cbb746c230a46c69fe

          • C:\Users\Admin\AppData\Local\Temp\nsuD0FE.tmp\nsExec.dll

            Filesize

            6KB

            MD5

            acc2b699edfea5bf5aae45aba3a41e96

            SHA1

            d2accf4d494e43ceb2cff69abe4dd17147d29cc2

            SHA256

            168a974eaa3f588d759db3f47c1a9fdc3494ba1fa1a73a84e5e3b2a4d58abd7e

            SHA512

            e29ea10ada98c71a18273b04f44f385b120d4e8473e441ce5748cfa44a23648814f2656f429b85440157988c88de776c6ac008dc38bf09cbb746c230a46c69fe

          • C:\Users\Admin\AppData\Local\Temp\nsuD0FE.tmp\nsExec.dll

            Filesize

            6KB

            MD5

            acc2b699edfea5bf5aae45aba3a41e96

            SHA1

            d2accf4d494e43ceb2cff69abe4dd17147d29cc2

            SHA256

            168a974eaa3f588d759db3f47c1a9fdc3494ba1fa1a73a84e5e3b2a4d58abd7e

            SHA512

            e29ea10ada98c71a18273b04f44f385b120d4e8473e441ce5748cfa44a23648814f2656f429b85440157988c88de776c6ac008dc38bf09cbb746c230a46c69fe

          • C:\Windows\SysWOW64\hfnapi.dll

            Filesize

            106KB

            MD5

            754ca10c3ab6a3b18071879dfadb4301

            SHA1

            fa837390bef2515efc68337668abc57106e925f7

            SHA256

            95febd952e15ed2a1b9cd80555b9829bb4cc6a74795a60708648634867f51701

            SHA512

            4e9c784f1542ff48a952c1f08c09d3bae84e6b20cee8457edf360185fde6165bfcb7eecf3c39e87c0921c4d22b6595b11ae64990020cafb569d274deb0332328

          • C:\Windows\SysWOW64\hfnapi.dll

            Filesize

            106KB

            MD5

            754ca10c3ab6a3b18071879dfadb4301

            SHA1

            fa837390bef2515efc68337668abc57106e925f7

            SHA256

            95febd952e15ed2a1b9cd80555b9829bb4cc6a74795a60708648634867f51701

            SHA512

            4e9c784f1542ff48a952c1f08c09d3bae84e6b20cee8457edf360185fde6165bfcb7eecf3c39e87c0921c4d22b6595b11ae64990020cafb569d274deb0332328

          • C:\Windows\SysWOW64\hfnapi.dll

            Filesize

            106KB

            MD5

            754ca10c3ab6a3b18071879dfadb4301

            SHA1

            fa837390bef2515efc68337668abc57106e925f7

            SHA256

            95febd952e15ed2a1b9cd80555b9829bb4cc6a74795a60708648634867f51701

            SHA512

            4e9c784f1542ff48a952c1f08c09d3bae84e6b20cee8457edf360185fde6165bfcb7eecf3c39e87c0921c4d22b6595b11ae64990020cafb569d274deb0332328

          • C:\Windows\SysWOW64\hfnapi.dll

            Filesize

            106KB

            MD5

            754ca10c3ab6a3b18071879dfadb4301

            SHA1

            fa837390bef2515efc68337668abc57106e925f7

            SHA256

            95febd952e15ed2a1b9cd80555b9829bb4cc6a74795a60708648634867f51701

            SHA512

            4e9c784f1542ff48a952c1f08c09d3bae84e6b20cee8457edf360185fde6165bfcb7eecf3c39e87c0921c4d22b6595b11ae64990020cafb569d274deb0332328

          • C:\Windows\SysWOW64\hfpapi.dll

            Filesize

            241KB

            MD5

            9b212dd52d866c850d3f0e977b6a0010

            SHA1

            4bf4f130edc99d8ce743b05741b81164510933fa

            SHA256

            2ed26e0c1d37e4a14c4ead74ff1c6178092cdf90d1c381aacde4866c4d13aa32

            SHA512

            8b5fbb86c895b739e770b831759d19778993502223503a77c4e8118c98f8ead29ca7f08eba9d1ee1015f581ec31722f0c9edf127b98def8490ab4ab6a9b00142

          • C:\Windows\SysWOW64\hfpapi.dll

            Filesize

            241KB

            MD5

            9b212dd52d866c850d3f0e977b6a0010

            SHA1

            4bf4f130edc99d8ce743b05741b81164510933fa

            SHA256

            2ed26e0c1d37e4a14c4ead74ff1c6178092cdf90d1c381aacde4866c4d13aa32

            SHA512

            8b5fbb86c895b739e770b831759d19778993502223503a77c4e8118c98f8ead29ca7f08eba9d1ee1015f581ec31722f0c9edf127b98def8490ab4ab6a9b00142

          • C:\Windows\SysWOW64\hfpapi.dll

            Filesize

            241KB

            MD5

            9b212dd52d866c850d3f0e977b6a0010

            SHA1

            4bf4f130edc99d8ce743b05741b81164510933fa

            SHA256

            2ed26e0c1d37e4a14c4ead74ff1c6178092cdf90d1c381aacde4866c4d13aa32

            SHA512

            8b5fbb86c895b739e770b831759d19778993502223503a77c4e8118c98f8ead29ca7f08eba9d1ee1015f581ec31722f0c9edf127b98def8490ab4ab6a9b00142

          • C:\Windows\SysWOW64\installd.exe

            Filesize

            108KB

            MD5

            7791b1dbd524dfe8d5e2113317f5e03d

            SHA1

            40637bc964f4075189dd02ac154ff9298a72cd27

            SHA256

            83e7432d8a83e9f1f51261a6c6c74f74fbe69c7a3c2fe39714b796b4fcbdeec1

            SHA512

            0782ff9c188e9a6af4db32fd417fe36c608aee12c2a05709aadd244e7f95130304dbbd070849624aa4074ec39b45f483bf6cd4f2b01a39e61a9d7770b0f5fd83

          • C:\Windows\SysWOW64\installd.exe

            Filesize

            108KB

            MD5

            7791b1dbd524dfe8d5e2113317f5e03d

            SHA1

            40637bc964f4075189dd02ac154ff9298a72cd27

            SHA256

            83e7432d8a83e9f1f51261a6c6c74f74fbe69c7a3c2fe39714b796b4fcbdeec1

            SHA512

            0782ff9c188e9a6af4db32fd417fe36c608aee12c2a05709aadd244e7f95130304dbbd070849624aa4074ec39b45f483bf6cd4f2b01a39e61a9d7770b0f5fd83

          • C:\Windows\SysWOW64\nethtsrv.exe

            Filesize

            176KB

            MD5

            2958acdb662ea114a1ed8cd790a42770

            SHA1

            2ac2159d2d90f707c1543be1c1993b755aad6422

            SHA256

            01f197684ccea565623e9e4b65f2e5a50c305d3460be75a3beb36a5fccbd9111

            SHA512

            486fb67afdd76b0fce92cdbed6fe286d77c8c4fbdb901765e9e856aa239a094606655a15f4ba4b90add1633c9947343846db0552f998713a1ab3c4a8edb8673e

          • C:\Windows\SysWOW64\nethtsrv.exe

            Filesize

            176KB

            MD5

            2958acdb662ea114a1ed8cd790a42770

            SHA1

            2ac2159d2d90f707c1543be1c1993b755aad6422

            SHA256

            01f197684ccea565623e9e4b65f2e5a50c305d3460be75a3beb36a5fccbd9111

            SHA512

            486fb67afdd76b0fce92cdbed6fe286d77c8c4fbdb901765e9e856aa239a094606655a15f4ba4b90add1633c9947343846db0552f998713a1ab3c4a8edb8673e

          • C:\Windows\SysWOW64\nethtsrv.exe

            Filesize

            176KB

            MD5

            2958acdb662ea114a1ed8cd790a42770

            SHA1

            2ac2159d2d90f707c1543be1c1993b755aad6422

            SHA256

            01f197684ccea565623e9e4b65f2e5a50c305d3460be75a3beb36a5fccbd9111

            SHA512

            486fb67afdd76b0fce92cdbed6fe286d77c8c4fbdb901765e9e856aa239a094606655a15f4ba4b90add1633c9947343846db0552f998713a1ab3c4a8edb8673e

          • C:\Windows\SysWOW64\netupdsrv.exe

            Filesize

            158KB

            MD5

            04a7956877ee51a75e452af31d8c0834

            SHA1

            b8dd2c613710e79474358d5eff524485d4eb2c67

            SHA256

            1e752f2283d4faab7a2d1ec7d7a20c26bf1c46cf14247a7e214a0c4bd85ba298

            SHA512

            70c06647d0bddca35dc9ca7a5215de602eb58411575d137fc303dc6919541c89b360ab10b92fe127748b80c7f134a3e3c232d4373e96e57be6ae9d7a56e7b909

          • C:\Windows\SysWOW64\netupdsrv.exe

            Filesize

            158KB

            MD5

            04a7956877ee51a75e452af31d8c0834

            SHA1

            b8dd2c613710e79474358d5eff524485d4eb2c67

            SHA256

            1e752f2283d4faab7a2d1ec7d7a20c26bf1c46cf14247a7e214a0c4bd85ba298

            SHA512

            70c06647d0bddca35dc9ca7a5215de602eb58411575d137fc303dc6919541c89b360ab10b92fe127748b80c7f134a3e3c232d4373e96e57be6ae9d7a56e7b909

          • C:\Windows\SysWOW64\netupdsrv.exe

            Filesize

            158KB

            MD5

            04a7956877ee51a75e452af31d8c0834

            SHA1

            b8dd2c613710e79474358d5eff524485d4eb2c67

            SHA256

            1e752f2283d4faab7a2d1ec7d7a20c26bf1c46cf14247a7e214a0c4bd85ba298

            SHA512

            70c06647d0bddca35dc9ca7a5215de602eb58411575d137fc303dc6919541c89b360ab10b92fe127748b80c7f134a3e3c232d4373e96e57be6ae9d7a56e7b909

          • memory/1168-140-0x0000000000000000-mapping.dmp

          • memory/1468-146-0x0000000000000000-mapping.dmp

          • memory/2536-141-0x0000000000000000-mapping.dmp

          • memory/3144-165-0x0000000000000000-mapping.dmp

          • memory/3164-135-0x0000000000000000-mapping.dmp

          • memory/3280-157-0x0000000000000000-mapping.dmp

          • memory/3900-136-0x0000000000000000-mapping.dmp

          • memory/4116-164-0x0000000000000000-mapping.dmp

          • memory/4412-152-0x0000000000000000-mapping.dmp

          • memory/4428-139-0x0000000000000000-mapping.dmp

          • memory/4976-158-0x0000000000000000-mapping.dmp