Analysis

  • max time kernel
    143s
  • max time network
    152s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20220812-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20220812-enlocale:en-usos:windows10-2004-x64system
  • submitted
    22-11-2022 00:03

General

  • Target

    50f6f3e93b3206df0f56b926f3cc344ac8f67848f795433d3bca2616224d7fb5.exe

  • Size

    602KB

  • MD5

    59319563c099c363832744370ae8cc91

  • SHA1

    637188215ecc04bdce0305836772558f77884576

  • SHA256

    50f6f3e93b3206df0f56b926f3cc344ac8f67848f795433d3bca2616224d7fb5

  • SHA512

    5d7c4f9b3bfda78f1f4fc9e3cebc30636c7ffcd6bf2a81bcb6f42f177c5032f94f1d995c66d169a693366c8c5cf2d0764912012db24b82ceac0de6a11174bbe4

  • SSDEEP

    12288:EIny5DYTjcPiC4pH/Uh7g/XzPPNuHqd2V4v5N:iUTjx9/g7g/DPc4OUH

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\50f6f3e93b3206df0f56b926f3cc344ac8f67848f795433d3bca2616224d7fb5.exe
    "C:\Users\Admin\AppData\Local\Temp\50f6f3e93b3206df0f56b926f3cc344ac8f67848f795433d3bca2616224d7fb5.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:2040
    • C:\Windows\SysWOW64\net.exe
      net stop nethttpservice
      2⤵
      • Suspicious use of WriteProcessMemory
      PID:4244
      • C:\Windows\SysWOW64\net1.exe
        C:\Windows\system32\net1 stop nethttpservice
        3⤵
          PID:4696
      • C:\Windows\SysWOW64\net.exe
        net stop serviceupdater
        2⤵
        • Suspicious use of WriteProcessMemory
        PID:4328
        • C:\Windows\SysWOW64\net1.exe
          C:\Windows\system32\net1 stop serviceupdater
          3⤵
            PID:1676
        • C:\Windows\SysWOW64\installd.exe
          "C:\Windows\system32\installd.exe" nethfdrv
          2⤵
          • Executes dropped EXE
          • Loads dropped DLL
          PID:4732
        • C:\Windows\SysWOW64\nethtsrv.exe
          "C:\Windows\system32\nethtsrv.exe" -nfdi
          2⤵
          • Executes dropped EXE
          • Loads dropped DLL
          PID:4676
        • C:\Windows\SysWOW64\netupdsrv.exe
          "C:\Windows\system32\netupdsrv.exe" -nfdi
          2⤵
          • Executes dropped EXE
          PID:1560
        • C:\Windows\SysWOW64\net.exe
          net start nethttpservice
          2⤵
          • Suspicious use of WriteProcessMemory
          PID:1688
          • C:\Windows\SysWOW64\net1.exe
            C:\Windows\system32\net1 start nethttpservice
            3⤵
              PID:4468
          • C:\Windows\SysWOW64\net.exe
            net start serviceupdater
            2⤵
            • Suspicious use of WriteProcessMemory
            PID:3788
            • C:\Windows\SysWOW64\net1.exe
              C:\Windows\system32\net1 start serviceupdater
              3⤵
                PID:2616
          • 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:4284
          • C:\Windows\SysWOW64\netupdsrv.exe
            C:\Windows\SysWOW64\netupdsrv.exe
            1⤵
            • Executes dropped EXE
            PID:224

          Network

          MITRE ATT&CK Enterprise v6

          Replay Monitor

          Loading Replay Monitor...

          Downloads

          • C:\Users\Admin\AppData\Local\Temp\nst85FF.tmp\System.dll

            Filesize

            11KB

            MD5

            c17103ae9072a06da581dec998343fc1

            SHA1

            b72148c6bdfaada8b8c3f950e610ee7cf1da1f8d

            SHA256

            dc58d8ad81cacb0c1ed72e33bff8f23ea40b5252b5bb55d393a0903e6819ae2f

            SHA512

            d32a71aaef18e993f28096d536e41c4d016850721b31171513ce28bbd805a54fd290b7c3e9d935f72e676a1acfb4f0dcc89d95040a0dd29f2b6975855c18986f

          • C:\Users\Admin\AppData\Local\Temp\nst85FF.tmp\nsExec.dll

            Filesize

            6KB

            MD5

            acc2b699edfea5bf5aae45aba3a41e96

            SHA1

            d2accf4d494e43ceb2cff69abe4dd17147d29cc2

            SHA256

            168a974eaa3f588d759db3f47c1a9fdc3494ba1fa1a73a84e5e3b2a4d58abd7e

            SHA512

            e29ea10ada98c71a18273b04f44f385b120d4e8473e441ce5748cfa44a23648814f2656f429b85440157988c88de776c6ac008dc38bf09cbb746c230a46c69fe

          • C:\Users\Admin\AppData\Local\Temp\nst85FF.tmp\nsExec.dll

            Filesize

            6KB

            MD5

            acc2b699edfea5bf5aae45aba3a41e96

            SHA1

            d2accf4d494e43ceb2cff69abe4dd17147d29cc2

            SHA256

            168a974eaa3f588d759db3f47c1a9fdc3494ba1fa1a73a84e5e3b2a4d58abd7e

            SHA512

            e29ea10ada98c71a18273b04f44f385b120d4e8473e441ce5748cfa44a23648814f2656f429b85440157988c88de776c6ac008dc38bf09cbb746c230a46c69fe

          • C:\Users\Admin\AppData\Local\Temp\nst85FF.tmp\nsExec.dll

            Filesize

            6KB

            MD5

            acc2b699edfea5bf5aae45aba3a41e96

            SHA1

            d2accf4d494e43ceb2cff69abe4dd17147d29cc2

            SHA256

            168a974eaa3f588d759db3f47c1a9fdc3494ba1fa1a73a84e5e3b2a4d58abd7e

            SHA512

            e29ea10ada98c71a18273b04f44f385b120d4e8473e441ce5748cfa44a23648814f2656f429b85440157988c88de776c6ac008dc38bf09cbb746c230a46c69fe

          • C:\Users\Admin\AppData\Local\Temp\nst85FF.tmp\nsExec.dll

            Filesize

            6KB

            MD5

            acc2b699edfea5bf5aae45aba3a41e96

            SHA1

            d2accf4d494e43ceb2cff69abe4dd17147d29cc2

            SHA256

            168a974eaa3f588d759db3f47c1a9fdc3494ba1fa1a73a84e5e3b2a4d58abd7e

            SHA512

            e29ea10ada98c71a18273b04f44f385b120d4e8473e441ce5748cfa44a23648814f2656f429b85440157988c88de776c6ac008dc38bf09cbb746c230a46c69fe

          • C:\Users\Admin\AppData\Local\Temp\nst85FF.tmp\nsExec.dll

            Filesize

            6KB

            MD5

            acc2b699edfea5bf5aae45aba3a41e96

            SHA1

            d2accf4d494e43ceb2cff69abe4dd17147d29cc2

            SHA256

            168a974eaa3f588d759db3f47c1a9fdc3494ba1fa1a73a84e5e3b2a4d58abd7e

            SHA512

            e29ea10ada98c71a18273b04f44f385b120d4e8473e441ce5748cfa44a23648814f2656f429b85440157988c88de776c6ac008dc38bf09cbb746c230a46c69fe

          • C:\Users\Admin\AppData\Local\Temp\nst85FF.tmp\nsExec.dll

            Filesize

            6KB

            MD5

            acc2b699edfea5bf5aae45aba3a41e96

            SHA1

            d2accf4d494e43ceb2cff69abe4dd17147d29cc2

            SHA256

            168a974eaa3f588d759db3f47c1a9fdc3494ba1fa1a73a84e5e3b2a4d58abd7e

            SHA512

            e29ea10ada98c71a18273b04f44f385b120d4e8473e441ce5748cfa44a23648814f2656f429b85440157988c88de776c6ac008dc38bf09cbb746c230a46c69fe

          • C:\Users\Admin\AppData\Local\Temp\nst85FF.tmp\nsExec.dll

            Filesize

            6KB

            MD5

            acc2b699edfea5bf5aae45aba3a41e96

            SHA1

            d2accf4d494e43ceb2cff69abe4dd17147d29cc2

            SHA256

            168a974eaa3f588d759db3f47c1a9fdc3494ba1fa1a73a84e5e3b2a4d58abd7e

            SHA512

            e29ea10ada98c71a18273b04f44f385b120d4e8473e441ce5748cfa44a23648814f2656f429b85440157988c88de776c6ac008dc38bf09cbb746c230a46c69fe

          • C:\Users\Admin\AppData\Local\Temp\nst85FF.tmp\nsExec.dll

            Filesize

            6KB

            MD5

            acc2b699edfea5bf5aae45aba3a41e96

            SHA1

            d2accf4d494e43ceb2cff69abe4dd17147d29cc2

            SHA256

            168a974eaa3f588d759db3f47c1a9fdc3494ba1fa1a73a84e5e3b2a4d58abd7e

            SHA512

            e29ea10ada98c71a18273b04f44f385b120d4e8473e441ce5748cfa44a23648814f2656f429b85440157988c88de776c6ac008dc38bf09cbb746c230a46c69fe

          • C:\Windows\SysWOW64\hfnapi.dll

            Filesize

            106KB

            MD5

            2932b3b44927982bf701406388d7ab39

            SHA1

            bcbb02531fd90dcc9e62d6a393156e187315a2d5

            SHA256

            d57e5827746b8a768e95627d9652f62238df13893d910f2a4788d69b29cc0946

            SHA512

            e9fb2cf209ef4ac7edeab9f60d9a9e51804b5c0dc79794c782b30a6cd2e61157287e99703475250dbbe8240209b9e3eb978b83cc97c7ecf1507393a29c85f28a

          • C:\Windows\SysWOW64\hfnapi.dll

            Filesize

            106KB

            MD5

            2932b3b44927982bf701406388d7ab39

            SHA1

            bcbb02531fd90dcc9e62d6a393156e187315a2d5

            SHA256

            d57e5827746b8a768e95627d9652f62238df13893d910f2a4788d69b29cc0946

            SHA512

            e9fb2cf209ef4ac7edeab9f60d9a9e51804b5c0dc79794c782b30a6cd2e61157287e99703475250dbbe8240209b9e3eb978b83cc97c7ecf1507393a29c85f28a

          • C:\Windows\SysWOW64\hfnapi.dll

            Filesize

            106KB

            MD5

            2932b3b44927982bf701406388d7ab39

            SHA1

            bcbb02531fd90dcc9e62d6a393156e187315a2d5

            SHA256

            d57e5827746b8a768e95627d9652f62238df13893d910f2a4788d69b29cc0946

            SHA512

            e9fb2cf209ef4ac7edeab9f60d9a9e51804b5c0dc79794c782b30a6cd2e61157287e99703475250dbbe8240209b9e3eb978b83cc97c7ecf1507393a29c85f28a

          • C:\Windows\SysWOW64\hfnapi.dll

            Filesize

            106KB

            MD5

            2932b3b44927982bf701406388d7ab39

            SHA1

            bcbb02531fd90dcc9e62d6a393156e187315a2d5

            SHA256

            d57e5827746b8a768e95627d9652f62238df13893d910f2a4788d69b29cc0946

            SHA512

            e9fb2cf209ef4ac7edeab9f60d9a9e51804b5c0dc79794c782b30a6cd2e61157287e99703475250dbbe8240209b9e3eb978b83cc97c7ecf1507393a29c85f28a

          • C:\Windows\SysWOW64\hfpapi.dll

            Filesize

            241KB

            MD5

            4f6d2db14c3cbb415cfd58b784f96db7

            SHA1

            dee90976c17ea5a6fba2066e59d86d7e26da70b8

            SHA256

            0dfe3a7f25109b88586d05931138ee9025d75ad0a4d13bae94a865884d93a583

            SHA512

            10a7428b655286122a323f8bce22333990ecefa4246aabf99b079648f855f6ff2e6663d1f2530117b01750a99c884741641209b28a5f259509fe56fe370b8ade

          • C:\Windows\SysWOW64\hfpapi.dll

            Filesize

            241KB

            MD5

            4f6d2db14c3cbb415cfd58b784f96db7

            SHA1

            dee90976c17ea5a6fba2066e59d86d7e26da70b8

            SHA256

            0dfe3a7f25109b88586d05931138ee9025d75ad0a4d13bae94a865884d93a583

            SHA512

            10a7428b655286122a323f8bce22333990ecefa4246aabf99b079648f855f6ff2e6663d1f2530117b01750a99c884741641209b28a5f259509fe56fe370b8ade

          • C:\Windows\SysWOW64\hfpapi.dll

            Filesize

            241KB

            MD5

            4f6d2db14c3cbb415cfd58b784f96db7

            SHA1

            dee90976c17ea5a6fba2066e59d86d7e26da70b8

            SHA256

            0dfe3a7f25109b88586d05931138ee9025d75ad0a4d13bae94a865884d93a583

            SHA512

            10a7428b655286122a323f8bce22333990ecefa4246aabf99b079648f855f6ff2e6663d1f2530117b01750a99c884741641209b28a5f259509fe56fe370b8ade

          • C:\Windows\SysWOW64\installd.exe

            Filesize

            108KB

            MD5

            a16fd6eef18c12905c9d978602b9ca41

            SHA1

            1dbcd777d7aec1b84843f935f617c9d5d3a38a9d

            SHA256

            631ad677ad5ddd565ea0f365d7ae3b0dbb92a02f9c148b746173930bb5f597fd

            SHA512

            3fe27e37fe31191748e6936d534d2b2931eecbd10b85c7cb40019e1b28ecfd1cb2a9ceba5093c9988b332edaf98805cf7863cd2b31390963568ea27cc06def14

          • C:\Windows\SysWOW64\installd.exe

            Filesize

            108KB

            MD5

            a16fd6eef18c12905c9d978602b9ca41

            SHA1

            1dbcd777d7aec1b84843f935f617c9d5d3a38a9d

            SHA256

            631ad677ad5ddd565ea0f365d7ae3b0dbb92a02f9c148b746173930bb5f597fd

            SHA512

            3fe27e37fe31191748e6936d534d2b2931eecbd10b85c7cb40019e1b28ecfd1cb2a9ceba5093c9988b332edaf98805cf7863cd2b31390963568ea27cc06def14

          • C:\Windows\SysWOW64\nethtsrv.exe

            Filesize

            176KB

            MD5

            4a652e7fff7bf6a00ed3309348455fb6

            SHA1

            9afd06f46188001693edd23fc4fb8277e529e4fe

            SHA256

            b05959e8cc9b326f3ffe853932de9496f72a7718754524ca97daee947b116d29

            SHA512

            5bfea1ce969cc6139fbc8a92434db0a4b25755d572b0463d68dc2c75f89df2b49172279f97dbeeae6a0464d17a1b3266a117174bb96acbd68c235608aead7df8

          • C:\Windows\SysWOW64\nethtsrv.exe

            Filesize

            176KB

            MD5

            4a652e7fff7bf6a00ed3309348455fb6

            SHA1

            9afd06f46188001693edd23fc4fb8277e529e4fe

            SHA256

            b05959e8cc9b326f3ffe853932de9496f72a7718754524ca97daee947b116d29

            SHA512

            5bfea1ce969cc6139fbc8a92434db0a4b25755d572b0463d68dc2c75f89df2b49172279f97dbeeae6a0464d17a1b3266a117174bb96acbd68c235608aead7df8

          • C:\Windows\SysWOW64\nethtsrv.exe

            Filesize

            176KB

            MD5

            4a652e7fff7bf6a00ed3309348455fb6

            SHA1

            9afd06f46188001693edd23fc4fb8277e529e4fe

            SHA256

            b05959e8cc9b326f3ffe853932de9496f72a7718754524ca97daee947b116d29

            SHA512

            5bfea1ce969cc6139fbc8a92434db0a4b25755d572b0463d68dc2c75f89df2b49172279f97dbeeae6a0464d17a1b3266a117174bb96acbd68c235608aead7df8

          • C:\Windows\SysWOW64\netupdsrv.exe

            Filesize

            158KB

            MD5

            853217c9f5f76bf38ddedfca4b50fa24

            SHA1

            40752c5ba8673f1ba62c92a0945c1c4d31335d73

            SHA256

            133532fc029302ff851d72f32d6a8fe1fc100bbc310b4d42465461f07505e43b

            SHA512

            118f2a2793c762028ee5c06a121505aa16ec7f5f33192d53beeb26ba4b60090ba69613471fdd2d2f8698ab47ba396c185d9e87e92b6537367097e2bd373f10f4

          • C:\Windows\SysWOW64\netupdsrv.exe

            Filesize

            158KB

            MD5

            853217c9f5f76bf38ddedfca4b50fa24

            SHA1

            40752c5ba8673f1ba62c92a0945c1c4d31335d73

            SHA256

            133532fc029302ff851d72f32d6a8fe1fc100bbc310b4d42465461f07505e43b

            SHA512

            118f2a2793c762028ee5c06a121505aa16ec7f5f33192d53beeb26ba4b60090ba69613471fdd2d2f8698ab47ba396c185d9e87e92b6537367097e2bd373f10f4

          • C:\Windows\SysWOW64\netupdsrv.exe

            Filesize

            158KB

            MD5

            853217c9f5f76bf38ddedfca4b50fa24

            SHA1

            40752c5ba8673f1ba62c92a0945c1c4d31335d73

            SHA256

            133532fc029302ff851d72f32d6a8fe1fc100bbc310b4d42465461f07505e43b

            SHA512

            118f2a2793c762028ee5c06a121505aa16ec7f5f33192d53beeb26ba4b60090ba69613471fdd2d2f8698ab47ba396c185d9e87e92b6537367097e2bd373f10f4

          • memory/1560-153-0x0000000000000000-mapping.dmp

          • memory/1676-141-0x0000000000000000-mapping.dmp

          • memory/1688-158-0x0000000000000000-mapping.dmp

          • memory/2040-137-0x0000000000360000-0x00000000007BE000-memory.dmp

            Filesize

            4.4MB

          • memory/2040-168-0x0000000000360000-0x00000000007BE000-memory.dmp

            Filesize

            4.4MB

          • memory/2616-166-0x0000000000000000-mapping.dmp

          • memory/3788-165-0x0000000000000000-mapping.dmp

          • memory/4244-135-0x0000000000000000-mapping.dmp

          • memory/4328-140-0x0000000000000000-mapping.dmp

          • memory/4468-159-0x0000000000000000-mapping.dmp

          • memory/4676-147-0x0000000000000000-mapping.dmp

          • memory/4696-136-0x0000000000000000-mapping.dmp

          • memory/4732-142-0x0000000000000000-mapping.dmp