Analysis

  • max time kernel
    14s
  • max time network
    17s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20220812-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20220812-enlocale:en-usos:windows10-2004-x64system
  • submitted
    23-11-2022 10:57

General

  • Target

    456ac2edac72ebce67a676a9895380012b71cfd38802f29943f0d7a3a2c5d095.exe

  • Size

    446KB

  • MD5

    7fc6f97cf4907002010b4e5b618ce71b

  • SHA1

    470a72b0d359596d74da2583002022fdca7297c9

  • SHA256

    456ac2edac72ebce67a676a9895380012b71cfd38802f29943f0d7a3a2c5d095

  • SHA512

    cc89168a76f3aa9af472c2b0a3e0bbbbccc62b1d971eb9094762ef9bff791b32876c8194f8b795a08a7a448fd0cb3eeff1737d42cf80f4c576fc449813e96520

  • SSDEEP

    6144:XzfbGHnl5vE3vKD+Jued9MnWA5YnOB5mQjmM0kmP6KmeNRKQYFtdq/ckYquFfn9D:XGY3MeUnW5O2qTQ6eezdvdf9C8

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\456ac2edac72ebce67a676a9895380012b71cfd38802f29943f0d7a3a2c5d095.exe
    "C:\Users\Admin\AppData\Local\Temp\456ac2edac72ebce67a676a9895380012b71cfd38802f29943f0d7a3a2c5d095.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:2064
    • C:\Windows\SysWOW64\net.exe
      net stop nethttpservice
      2⤵
      • Suspicious use of WriteProcessMemory
      PID:4356
      • C:\Windows\SysWOW64\net1.exe
        C:\Windows\system32\net1 stop nethttpservice
        3⤵
          PID:3508
      • C:\Windows\SysWOW64\net.exe
        net stop serviceupdater
        2⤵
        • Suspicious use of WriteProcessMemory
        PID:3924
        • C:\Windows\SysWOW64\net1.exe
          C:\Windows\system32\net1 stop serviceupdater
          3⤵
            PID:3964
        • C:\Windows\SysWOW64\installd.exe
          "C:\Windows\system32\installd.exe" nethfdrv
          2⤵
          • Executes dropped EXE
          • Loads dropped DLL
          PID:3856
        • C:\Windows\SysWOW64\nethtsrv.exe
          "C:\Windows\system32\nethtsrv.exe" -nfdi
          2⤵
          • Executes dropped EXE
          • Loads dropped DLL
          PID:3288
        • C:\Windows\SysWOW64\netupdsrv.exe
          "C:\Windows\system32\netupdsrv.exe" -nfdi
          2⤵
          • Executes dropped EXE
          PID:4128
        • C:\Windows\SysWOW64\net.exe
          net start nethttpservice
          2⤵
          • Suspicious use of WriteProcessMemory
          PID:3848
          • C:\Windows\SysWOW64\net1.exe
            C:\Windows\system32\net1 start nethttpservice
            3⤵
              PID:1504
          • C:\Windows\SysWOW64\net.exe
            net start serviceupdater
            2⤵
            • Suspicious use of WriteProcessMemory
            PID:4496
            • C:\Windows\SysWOW64\net1.exe
              C:\Windows\system32\net1 start serviceupdater
              3⤵
                PID:852
          • 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:4024
          • C:\Windows\SysWOW64\netupdsrv.exe
            C:\Windows\SysWOW64\netupdsrv.exe
            1⤵
            • Executes dropped EXE
            PID:4736

          Network

          MITRE ATT&CK Enterprise v6

          Replay Monitor

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          Downloads

          • C:\Users\Admin\AppData\Local\Temp\nsjAD0F.tmp\System.dll

            Filesize

            11KB

            MD5

            c17103ae9072a06da581dec998343fc1

            SHA1

            b72148c6bdfaada8b8c3f950e610ee7cf1da1f8d

            SHA256

            dc58d8ad81cacb0c1ed72e33bff8f23ea40b5252b5bb55d393a0903e6819ae2f

            SHA512

            d32a71aaef18e993f28096d536e41c4d016850721b31171513ce28bbd805a54fd290b7c3e9d935f72e676a1acfb4f0dcc89d95040a0dd29f2b6975855c18986f

          • C:\Users\Admin\AppData\Local\Temp\nsjAD0F.tmp\nsExec.dll

            Filesize

            6KB

            MD5

            acc2b699edfea5bf5aae45aba3a41e96

            SHA1

            d2accf4d494e43ceb2cff69abe4dd17147d29cc2

            SHA256

            168a974eaa3f588d759db3f47c1a9fdc3494ba1fa1a73a84e5e3b2a4d58abd7e

            SHA512

            e29ea10ada98c71a18273b04f44f385b120d4e8473e441ce5748cfa44a23648814f2656f429b85440157988c88de776c6ac008dc38bf09cbb746c230a46c69fe

          • C:\Users\Admin\AppData\Local\Temp\nsjAD0F.tmp\nsExec.dll

            Filesize

            6KB

            MD5

            acc2b699edfea5bf5aae45aba3a41e96

            SHA1

            d2accf4d494e43ceb2cff69abe4dd17147d29cc2

            SHA256

            168a974eaa3f588d759db3f47c1a9fdc3494ba1fa1a73a84e5e3b2a4d58abd7e

            SHA512

            e29ea10ada98c71a18273b04f44f385b120d4e8473e441ce5748cfa44a23648814f2656f429b85440157988c88de776c6ac008dc38bf09cbb746c230a46c69fe

          • C:\Users\Admin\AppData\Local\Temp\nsjAD0F.tmp\nsExec.dll

            Filesize

            6KB

            MD5

            acc2b699edfea5bf5aae45aba3a41e96

            SHA1

            d2accf4d494e43ceb2cff69abe4dd17147d29cc2

            SHA256

            168a974eaa3f588d759db3f47c1a9fdc3494ba1fa1a73a84e5e3b2a4d58abd7e

            SHA512

            e29ea10ada98c71a18273b04f44f385b120d4e8473e441ce5748cfa44a23648814f2656f429b85440157988c88de776c6ac008dc38bf09cbb746c230a46c69fe

          • C:\Users\Admin\AppData\Local\Temp\nsjAD0F.tmp\nsExec.dll

            Filesize

            6KB

            MD5

            acc2b699edfea5bf5aae45aba3a41e96

            SHA1

            d2accf4d494e43ceb2cff69abe4dd17147d29cc2

            SHA256

            168a974eaa3f588d759db3f47c1a9fdc3494ba1fa1a73a84e5e3b2a4d58abd7e

            SHA512

            e29ea10ada98c71a18273b04f44f385b120d4e8473e441ce5748cfa44a23648814f2656f429b85440157988c88de776c6ac008dc38bf09cbb746c230a46c69fe

          • C:\Users\Admin\AppData\Local\Temp\nsjAD0F.tmp\nsExec.dll

            Filesize

            6KB

            MD5

            acc2b699edfea5bf5aae45aba3a41e96

            SHA1

            d2accf4d494e43ceb2cff69abe4dd17147d29cc2

            SHA256

            168a974eaa3f588d759db3f47c1a9fdc3494ba1fa1a73a84e5e3b2a4d58abd7e

            SHA512

            e29ea10ada98c71a18273b04f44f385b120d4e8473e441ce5748cfa44a23648814f2656f429b85440157988c88de776c6ac008dc38bf09cbb746c230a46c69fe

          • C:\Users\Admin\AppData\Local\Temp\nsjAD0F.tmp\nsExec.dll

            Filesize

            6KB

            MD5

            acc2b699edfea5bf5aae45aba3a41e96

            SHA1

            d2accf4d494e43ceb2cff69abe4dd17147d29cc2

            SHA256

            168a974eaa3f588d759db3f47c1a9fdc3494ba1fa1a73a84e5e3b2a4d58abd7e

            SHA512

            e29ea10ada98c71a18273b04f44f385b120d4e8473e441ce5748cfa44a23648814f2656f429b85440157988c88de776c6ac008dc38bf09cbb746c230a46c69fe

          • C:\Users\Admin\AppData\Local\Temp\nsjAD0F.tmp\nsExec.dll

            Filesize

            6KB

            MD5

            acc2b699edfea5bf5aae45aba3a41e96

            SHA1

            d2accf4d494e43ceb2cff69abe4dd17147d29cc2

            SHA256

            168a974eaa3f588d759db3f47c1a9fdc3494ba1fa1a73a84e5e3b2a4d58abd7e

            SHA512

            e29ea10ada98c71a18273b04f44f385b120d4e8473e441ce5748cfa44a23648814f2656f429b85440157988c88de776c6ac008dc38bf09cbb746c230a46c69fe

          • C:\Users\Admin\AppData\Local\Temp\nsjAD0F.tmp\nsExec.dll

            Filesize

            6KB

            MD5

            acc2b699edfea5bf5aae45aba3a41e96

            SHA1

            d2accf4d494e43ceb2cff69abe4dd17147d29cc2

            SHA256

            168a974eaa3f588d759db3f47c1a9fdc3494ba1fa1a73a84e5e3b2a4d58abd7e

            SHA512

            e29ea10ada98c71a18273b04f44f385b120d4e8473e441ce5748cfa44a23648814f2656f429b85440157988c88de776c6ac008dc38bf09cbb746c230a46c69fe

          • C:\Windows\SysWOW64\hfnapi.dll

            Filesize

            106KB

            MD5

            0ce852a150d651a22a5ace6a933dcfbf

            SHA1

            d2cb05fb12439d586f89e08a9b195efb5d308f60

            SHA256

            20f843181d4ae8f480bf7dcdc3a45f45a451ce084b9651d12c3dbfc57edc2a95

            SHA512

            96565420e6c92245db3c9a90a759848504fc6bafe075bd6d6dfe7b6fd6828f890974f01e15c3931da5e0f98e8a979a93f90e0454727a9c888030153179113a8d

          • C:\Windows\SysWOW64\hfnapi.dll

            Filesize

            106KB

            MD5

            0ce852a150d651a22a5ace6a933dcfbf

            SHA1

            d2cb05fb12439d586f89e08a9b195efb5d308f60

            SHA256

            20f843181d4ae8f480bf7dcdc3a45f45a451ce084b9651d12c3dbfc57edc2a95

            SHA512

            96565420e6c92245db3c9a90a759848504fc6bafe075bd6d6dfe7b6fd6828f890974f01e15c3931da5e0f98e8a979a93f90e0454727a9c888030153179113a8d

          • C:\Windows\SysWOW64\hfnapi.dll

            Filesize

            106KB

            MD5

            0ce852a150d651a22a5ace6a933dcfbf

            SHA1

            d2cb05fb12439d586f89e08a9b195efb5d308f60

            SHA256

            20f843181d4ae8f480bf7dcdc3a45f45a451ce084b9651d12c3dbfc57edc2a95

            SHA512

            96565420e6c92245db3c9a90a759848504fc6bafe075bd6d6dfe7b6fd6828f890974f01e15c3931da5e0f98e8a979a93f90e0454727a9c888030153179113a8d

          • C:\Windows\SysWOW64\hfnapi.dll

            Filesize

            106KB

            MD5

            0ce852a150d651a22a5ace6a933dcfbf

            SHA1

            d2cb05fb12439d586f89e08a9b195efb5d308f60

            SHA256

            20f843181d4ae8f480bf7dcdc3a45f45a451ce084b9651d12c3dbfc57edc2a95

            SHA512

            96565420e6c92245db3c9a90a759848504fc6bafe075bd6d6dfe7b6fd6828f890974f01e15c3931da5e0f98e8a979a93f90e0454727a9c888030153179113a8d

          • C:\Windows\SysWOW64\hfpapi.dll

            Filesize

            241KB

            MD5

            403deef708f764d5bea96c3482a03e9e

            SHA1

            046ff28b459cc30b6180b231523aaea8f993b821

            SHA256

            4fdeb7581d50d2bca21f50ef189719463ce0a96f690e27d9acf1dadf4d51f896

            SHA512

            ff118bdef647419200f13cd203bee0813a685dfeb0337d949bc244bf898ea6299200ce19ac9c9c2083be9607af9b9984ddc9036a56e3e4426527a22e2af0c6da

          • C:\Windows\SysWOW64\hfpapi.dll

            Filesize

            241KB

            MD5

            403deef708f764d5bea96c3482a03e9e

            SHA1

            046ff28b459cc30b6180b231523aaea8f993b821

            SHA256

            4fdeb7581d50d2bca21f50ef189719463ce0a96f690e27d9acf1dadf4d51f896

            SHA512

            ff118bdef647419200f13cd203bee0813a685dfeb0337d949bc244bf898ea6299200ce19ac9c9c2083be9607af9b9984ddc9036a56e3e4426527a22e2af0c6da

          • C:\Windows\SysWOW64\hfpapi.dll

            Filesize

            241KB

            MD5

            403deef708f764d5bea96c3482a03e9e

            SHA1

            046ff28b459cc30b6180b231523aaea8f993b821

            SHA256

            4fdeb7581d50d2bca21f50ef189719463ce0a96f690e27d9acf1dadf4d51f896

            SHA512

            ff118bdef647419200f13cd203bee0813a685dfeb0337d949bc244bf898ea6299200ce19ac9c9c2083be9607af9b9984ddc9036a56e3e4426527a22e2af0c6da

          • C:\Windows\SysWOW64\installd.exe

            Filesize

            108KB

            MD5

            3ec220ab09eb8b45df49a3d52c02832e

            SHA1

            e7a79ed7a08ad453a100ebfa4a2688a6d1e3aee0

            SHA256

            dca60228999d2adbc5a1e285e3e9328fc99c07c8045a427716abecac96164325

            SHA512

            e60396ee46b8c681625a80cb1b1147ac6c9b8c37712f625f028834171f26445ff4e4ef0d495d680226f7e2cafe51c305a5c39174e7f0c76e101c65381ad29fad

          • C:\Windows\SysWOW64\installd.exe

            Filesize

            108KB

            MD5

            3ec220ab09eb8b45df49a3d52c02832e

            SHA1

            e7a79ed7a08ad453a100ebfa4a2688a6d1e3aee0

            SHA256

            dca60228999d2adbc5a1e285e3e9328fc99c07c8045a427716abecac96164325

            SHA512

            e60396ee46b8c681625a80cb1b1147ac6c9b8c37712f625f028834171f26445ff4e4ef0d495d680226f7e2cafe51c305a5c39174e7f0c76e101c65381ad29fad

          • C:\Windows\SysWOW64\nethtsrv.exe

            Filesize

            176KB

            MD5

            c3830bbca55b6021bb33c1477124727e

            SHA1

            6cde47936b0945337f4dec4b4053cbd4dee69510

            SHA256

            052e478b16cefe54b0433d5c4d9c963b5422e2d04f7ae430026387097f48add7

            SHA512

            f55b3a2441791f8e719b1d6af46b099ea550c5ee760f60eb935cee17f7d2da6f347bf8be79882814e4376849a7f53dde6daaa71d53f6aba24af192202b16ffa4

          • C:\Windows\SysWOW64\nethtsrv.exe

            Filesize

            176KB

            MD5

            c3830bbca55b6021bb33c1477124727e

            SHA1

            6cde47936b0945337f4dec4b4053cbd4dee69510

            SHA256

            052e478b16cefe54b0433d5c4d9c963b5422e2d04f7ae430026387097f48add7

            SHA512

            f55b3a2441791f8e719b1d6af46b099ea550c5ee760f60eb935cee17f7d2da6f347bf8be79882814e4376849a7f53dde6daaa71d53f6aba24af192202b16ffa4

          • C:\Windows\SysWOW64\nethtsrv.exe

            Filesize

            176KB

            MD5

            c3830bbca55b6021bb33c1477124727e

            SHA1

            6cde47936b0945337f4dec4b4053cbd4dee69510

            SHA256

            052e478b16cefe54b0433d5c4d9c963b5422e2d04f7ae430026387097f48add7

            SHA512

            f55b3a2441791f8e719b1d6af46b099ea550c5ee760f60eb935cee17f7d2da6f347bf8be79882814e4376849a7f53dde6daaa71d53f6aba24af192202b16ffa4

          • C:\Windows\SysWOW64\netupdsrv.exe

            Filesize

            159KB

            MD5

            2319fb5370b3605a7511ae091ac67a05

            SHA1

            1b086087cce3fca0e7260fb18ddadbb7df0f4c90

            SHA256

            6e09718b2aa51ffa3d66c53bd523c06765e98b56ff743063394d76e49fc13728

            SHA512

            8fedcb20d0ed1acfde787f9bfa884291a0935764112fcc3f494763b59ad46760e431b6fed3cb24f8d283b7a9713608f7317f25188b4fcb12ad88243dada6b04e

          • C:\Windows\SysWOW64\netupdsrv.exe

            Filesize

            159KB

            MD5

            2319fb5370b3605a7511ae091ac67a05

            SHA1

            1b086087cce3fca0e7260fb18ddadbb7df0f4c90

            SHA256

            6e09718b2aa51ffa3d66c53bd523c06765e98b56ff743063394d76e49fc13728

            SHA512

            8fedcb20d0ed1acfde787f9bfa884291a0935764112fcc3f494763b59ad46760e431b6fed3cb24f8d283b7a9713608f7317f25188b4fcb12ad88243dada6b04e

          • C:\Windows\SysWOW64\netupdsrv.exe

            Filesize

            159KB

            MD5

            2319fb5370b3605a7511ae091ac67a05

            SHA1

            1b086087cce3fca0e7260fb18ddadbb7df0f4c90

            SHA256

            6e09718b2aa51ffa3d66c53bd523c06765e98b56ff743063394d76e49fc13728

            SHA512

            8fedcb20d0ed1acfde787f9bfa884291a0935764112fcc3f494763b59ad46760e431b6fed3cb24f8d283b7a9713608f7317f25188b4fcb12ad88243dada6b04e

          • memory/852-165-0x0000000000000000-mapping.dmp

          • memory/1504-158-0x0000000000000000-mapping.dmp

          • memory/3288-146-0x0000000000000000-mapping.dmp

          • memory/3508-136-0x0000000000000000-mapping.dmp

          • memory/3848-157-0x0000000000000000-mapping.dmp

          • memory/3856-141-0x0000000000000000-mapping.dmp

          • memory/3924-139-0x0000000000000000-mapping.dmp

          • memory/3964-140-0x0000000000000000-mapping.dmp

          • memory/4128-152-0x0000000000000000-mapping.dmp

          • memory/4356-135-0x0000000000000000-mapping.dmp

          • memory/4496-164-0x0000000000000000-mapping.dmp