Analysis

  • max time kernel
    263s
  • max time network
    299s
  • 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 10:32

General

  • Target

    1c1c7fbb20a31caebd7d468c5a24b99b3901f5d29eade91e47ff4409c11ff50a.exe

  • Size

    602KB

  • MD5

    8640b32058107bd8750e63f79a3ccb65

  • SHA1

    78733a8a39e814d1d7ac89b2ade684c7841b9699

  • SHA256

    1c1c7fbb20a31caebd7d468c5a24b99b3901f5d29eade91e47ff4409c11ff50a

  • SHA512

    77319350c603bc37f44a26d290ae3f30372ab916bec93ad278423a62def82247348e14cd0ed4901f7efae424db3a19eb00aaa27a98fd4ef3e42da1a3a2f4df74

  • SSDEEP

    12288:EIny5DYTcImzPcuzUmAe1655KVWkbwSzL0QGw59g2nDzhXM+J4wN1rTgq/:iUTc94uzMe1OUr1zL0Q3CCPRLJp11/

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\1c1c7fbb20a31caebd7d468c5a24b99b3901f5d29eade91e47ff4409c11ff50a.exe
    "C:\Users\Admin\AppData\Local\Temp\1c1c7fbb20a31caebd7d468c5a24b99b3901f5d29eade91e47ff4409c11ff50a.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:1724
    • C:\Windows\SysWOW64\net.exe
      net stop nethttpservice
      2⤵
      • Suspicious use of WriteProcessMemory
      PID:4620
      • C:\Windows\SysWOW64\net1.exe
        C:\Windows\system32\net1 stop nethttpservice
        3⤵
          PID:3672
      • C:\Windows\SysWOW64\net.exe
        net stop serviceupdater
        2⤵
        • Suspicious use of WriteProcessMemory
        PID:1508
        • C:\Windows\SysWOW64\net1.exe
          C:\Windows\system32\net1 stop serviceupdater
          3⤵
            PID:4336
        • C:\Windows\SysWOW64\installd.exe
          "C:\Windows\system32\installd.exe" nethfdrv
          2⤵
          • Executes dropped EXE
          • Loads dropped DLL
          PID:1972
        • C:\Windows\SysWOW64\nethtsrv.exe
          "C:\Windows\system32\nethtsrv.exe" -nfdi
          2⤵
          • Executes dropped EXE
          • Loads dropped DLL
          PID:3128
        • C:\Windows\SysWOW64\netupdsrv.exe
          "C:\Windows\system32\netupdsrv.exe" -nfdi
          2⤵
          • Executes dropped EXE
          PID:4040
        • C:\Windows\SysWOW64\net.exe
          net start nethttpservice
          2⤵
          • Suspicious use of WriteProcessMemory
          PID:3132
          • C:\Windows\SysWOW64\net1.exe
            C:\Windows\system32\net1 start nethttpservice
            3⤵
              PID:2648
          • C:\Windows\SysWOW64\net.exe
            net start serviceupdater
            2⤵
            • Suspicious use of WriteProcessMemory
            PID:348
            • C:\Windows\SysWOW64\net1.exe
              C:\Windows\system32\net1 start serviceupdater
              3⤵
                PID:4160
          • 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:1688
          • C:\Windows\SysWOW64\netupdsrv.exe
            C:\Windows\SysWOW64\netupdsrv.exe
            1⤵
            • Executes dropped EXE
            PID:1448

          Network

          MITRE ATT&CK Enterprise v6

          Replay Monitor

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          Downloads

          • C:\Users\Admin\AppData\Local\Temp\nsw5358.tmp\System.dll

            Filesize

            11KB

            MD5

            c17103ae9072a06da581dec998343fc1

            SHA1

            b72148c6bdfaada8b8c3f950e610ee7cf1da1f8d

            SHA256

            dc58d8ad81cacb0c1ed72e33bff8f23ea40b5252b5bb55d393a0903e6819ae2f

            SHA512

            d32a71aaef18e993f28096d536e41c4d016850721b31171513ce28bbd805a54fd290b7c3e9d935f72e676a1acfb4f0dcc89d95040a0dd29f2b6975855c18986f

          • C:\Users\Admin\AppData\Local\Temp\nsw5358.tmp\nsExec.dll

            Filesize

            6KB

            MD5

            acc2b699edfea5bf5aae45aba3a41e96

            SHA1

            d2accf4d494e43ceb2cff69abe4dd17147d29cc2

            SHA256

            168a974eaa3f588d759db3f47c1a9fdc3494ba1fa1a73a84e5e3b2a4d58abd7e

            SHA512

            e29ea10ada98c71a18273b04f44f385b120d4e8473e441ce5748cfa44a23648814f2656f429b85440157988c88de776c6ac008dc38bf09cbb746c230a46c69fe

          • C:\Users\Admin\AppData\Local\Temp\nsw5358.tmp\nsExec.dll

            Filesize

            6KB

            MD5

            acc2b699edfea5bf5aae45aba3a41e96

            SHA1

            d2accf4d494e43ceb2cff69abe4dd17147d29cc2

            SHA256

            168a974eaa3f588d759db3f47c1a9fdc3494ba1fa1a73a84e5e3b2a4d58abd7e

            SHA512

            e29ea10ada98c71a18273b04f44f385b120d4e8473e441ce5748cfa44a23648814f2656f429b85440157988c88de776c6ac008dc38bf09cbb746c230a46c69fe

          • C:\Users\Admin\AppData\Local\Temp\nsw5358.tmp\nsExec.dll

            Filesize

            6KB

            MD5

            acc2b699edfea5bf5aae45aba3a41e96

            SHA1

            d2accf4d494e43ceb2cff69abe4dd17147d29cc2

            SHA256

            168a974eaa3f588d759db3f47c1a9fdc3494ba1fa1a73a84e5e3b2a4d58abd7e

            SHA512

            e29ea10ada98c71a18273b04f44f385b120d4e8473e441ce5748cfa44a23648814f2656f429b85440157988c88de776c6ac008dc38bf09cbb746c230a46c69fe

          • C:\Users\Admin\AppData\Local\Temp\nsw5358.tmp\nsExec.dll

            Filesize

            6KB

            MD5

            acc2b699edfea5bf5aae45aba3a41e96

            SHA1

            d2accf4d494e43ceb2cff69abe4dd17147d29cc2

            SHA256

            168a974eaa3f588d759db3f47c1a9fdc3494ba1fa1a73a84e5e3b2a4d58abd7e

            SHA512

            e29ea10ada98c71a18273b04f44f385b120d4e8473e441ce5748cfa44a23648814f2656f429b85440157988c88de776c6ac008dc38bf09cbb746c230a46c69fe

          • C:\Users\Admin\AppData\Local\Temp\nsw5358.tmp\nsExec.dll

            Filesize

            6KB

            MD5

            acc2b699edfea5bf5aae45aba3a41e96

            SHA1

            d2accf4d494e43ceb2cff69abe4dd17147d29cc2

            SHA256

            168a974eaa3f588d759db3f47c1a9fdc3494ba1fa1a73a84e5e3b2a4d58abd7e

            SHA512

            e29ea10ada98c71a18273b04f44f385b120d4e8473e441ce5748cfa44a23648814f2656f429b85440157988c88de776c6ac008dc38bf09cbb746c230a46c69fe

          • C:\Users\Admin\AppData\Local\Temp\nsw5358.tmp\nsExec.dll

            Filesize

            6KB

            MD5

            acc2b699edfea5bf5aae45aba3a41e96

            SHA1

            d2accf4d494e43ceb2cff69abe4dd17147d29cc2

            SHA256

            168a974eaa3f588d759db3f47c1a9fdc3494ba1fa1a73a84e5e3b2a4d58abd7e

            SHA512

            e29ea10ada98c71a18273b04f44f385b120d4e8473e441ce5748cfa44a23648814f2656f429b85440157988c88de776c6ac008dc38bf09cbb746c230a46c69fe

          • C:\Users\Admin\AppData\Local\Temp\nsw5358.tmp\nsExec.dll

            Filesize

            6KB

            MD5

            acc2b699edfea5bf5aae45aba3a41e96

            SHA1

            d2accf4d494e43ceb2cff69abe4dd17147d29cc2

            SHA256

            168a974eaa3f588d759db3f47c1a9fdc3494ba1fa1a73a84e5e3b2a4d58abd7e

            SHA512

            e29ea10ada98c71a18273b04f44f385b120d4e8473e441ce5748cfa44a23648814f2656f429b85440157988c88de776c6ac008dc38bf09cbb746c230a46c69fe

          • C:\Users\Admin\AppData\Local\Temp\nsw5358.tmp\nsExec.dll

            Filesize

            6KB

            MD5

            acc2b699edfea5bf5aae45aba3a41e96

            SHA1

            d2accf4d494e43ceb2cff69abe4dd17147d29cc2

            SHA256

            168a974eaa3f588d759db3f47c1a9fdc3494ba1fa1a73a84e5e3b2a4d58abd7e

            SHA512

            e29ea10ada98c71a18273b04f44f385b120d4e8473e441ce5748cfa44a23648814f2656f429b85440157988c88de776c6ac008dc38bf09cbb746c230a46c69fe

          • C:\Windows\SysWOW64\hfnapi.dll

            Filesize

            106KB

            MD5

            a6df1ae09e7f93b0907a572d86820a2d

            SHA1

            d2c4b4213c099df1c5a93526822b40e49acd6c6d

            SHA256

            575b89ac86608b7abffb3f156e5f31143245f38dca274b8f0a4a1b7a6d0fb059

            SHA512

            c72608bca0e767817f16537b7b3ee51d5200cf818530f5b9fdb126c9e16e74d709a3276cc6a477f5037964b33b9ea8c7f55200e6e4cd845314daded1fafb76e2

          • C:\Windows\SysWOW64\hfnapi.dll

            Filesize

            106KB

            MD5

            a6df1ae09e7f93b0907a572d86820a2d

            SHA1

            d2c4b4213c099df1c5a93526822b40e49acd6c6d

            SHA256

            575b89ac86608b7abffb3f156e5f31143245f38dca274b8f0a4a1b7a6d0fb059

            SHA512

            c72608bca0e767817f16537b7b3ee51d5200cf818530f5b9fdb126c9e16e74d709a3276cc6a477f5037964b33b9ea8c7f55200e6e4cd845314daded1fafb76e2

          • C:\Windows\SysWOW64\hfnapi.dll

            Filesize

            106KB

            MD5

            a6df1ae09e7f93b0907a572d86820a2d

            SHA1

            d2c4b4213c099df1c5a93526822b40e49acd6c6d

            SHA256

            575b89ac86608b7abffb3f156e5f31143245f38dca274b8f0a4a1b7a6d0fb059

            SHA512

            c72608bca0e767817f16537b7b3ee51d5200cf818530f5b9fdb126c9e16e74d709a3276cc6a477f5037964b33b9ea8c7f55200e6e4cd845314daded1fafb76e2

          • C:\Windows\SysWOW64\hfnapi.dll

            Filesize

            106KB

            MD5

            a6df1ae09e7f93b0907a572d86820a2d

            SHA1

            d2c4b4213c099df1c5a93526822b40e49acd6c6d

            SHA256

            575b89ac86608b7abffb3f156e5f31143245f38dca274b8f0a4a1b7a6d0fb059

            SHA512

            c72608bca0e767817f16537b7b3ee51d5200cf818530f5b9fdb126c9e16e74d709a3276cc6a477f5037964b33b9ea8c7f55200e6e4cd845314daded1fafb76e2

          • C:\Windows\SysWOW64\hfpapi.dll

            Filesize

            244KB

            MD5

            966369347b662ab7c791f30e103e3659

            SHA1

            09107ad4a8379b8332fa741d0ece6c8e2cb35c61

            SHA256

            fde84b4779bc30682b3313185c740a403fea7fb025522788332dc62a047cc2cd

            SHA512

            4d62268d27e70e5320157b3ff15b7330310827ada48fc3418c88920c40025f88d753c67dc05be12ad4e5fd3da19e95bc3bbec733ddac56f84c05687f72d3430f

          • C:\Windows\SysWOW64\hfpapi.dll

            Filesize

            244KB

            MD5

            966369347b662ab7c791f30e103e3659

            SHA1

            09107ad4a8379b8332fa741d0ece6c8e2cb35c61

            SHA256

            fde84b4779bc30682b3313185c740a403fea7fb025522788332dc62a047cc2cd

            SHA512

            4d62268d27e70e5320157b3ff15b7330310827ada48fc3418c88920c40025f88d753c67dc05be12ad4e5fd3da19e95bc3bbec733ddac56f84c05687f72d3430f

          • C:\Windows\SysWOW64\hfpapi.dll

            Filesize

            244KB

            MD5

            966369347b662ab7c791f30e103e3659

            SHA1

            09107ad4a8379b8332fa741d0ece6c8e2cb35c61

            SHA256

            fde84b4779bc30682b3313185c740a403fea7fb025522788332dc62a047cc2cd

            SHA512

            4d62268d27e70e5320157b3ff15b7330310827ada48fc3418c88920c40025f88d753c67dc05be12ad4e5fd3da19e95bc3bbec733ddac56f84c05687f72d3430f

          • C:\Windows\SysWOW64\installd.exe

            Filesize

            108KB

            MD5

            d466f8276405bba0d58e7e9a47e4d271

            SHA1

            adaccb5548fa47e284e1b6385810025485dd1fad

            SHA256

            3525cd8ea2ba813a215bf660f2f7d761f971193d495e44b741c9bc48b7334c5c

            SHA512

            f4b6c4e0704cfc590cb1e4a407bce1a2230724c739840df5d7bc91531964cb9a9e0d0f44409a177d62d6fbb37ee1521129ab21c35eac695d994ce4582761b4ea

          • C:\Windows\SysWOW64\installd.exe

            Filesize

            108KB

            MD5

            d466f8276405bba0d58e7e9a47e4d271

            SHA1

            adaccb5548fa47e284e1b6385810025485dd1fad

            SHA256

            3525cd8ea2ba813a215bf660f2f7d761f971193d495e44b741c9bc48b7334c5c

            SHA512

            f4b6c4e0704cfc590cb1e4a407bce1a2230724c739840df5d7bc91531964cb9a9e0d0f44409a177d62d6fbb37ee1521129ab21c35eac695d994ce4582761b4ea

          • C:\Windows\SysWOW64\nethtsrv.exe

            Filesize

            176KB

            MD5

            ddeca5890ff27b37a551e83c4bb4330f

            SHA1

            d3a952d9e0b5660189f66888d6fe5c46c4c0fedb

            SHA256

            3be51afc03340b79d8f110c3c6415f3605ecabc0aa304862c991e3a8ad84d1ec

            SHA512

            4287b072fab60366309ba72248357df6ad7d48ace5d4adcc6e56a6ab54e297813d109472d7620eed5b0410cc05752b21869fab51d154742a52d65362085a98fb

          • C:\Windows\SysWOW64\nethtsrv.exe

            Filesize

            176KB

            MD5

            ddeca5890ff27b37a551e83c4bb4330f

            SHA1

            d3a952d9e0b5660189f66888d6fe5c46c4c0fedb

            SHA256

            3be51afc03340b79d8f110c3c6415f3605ecabc0aa304862c991e3a8ad84d1ec

            SHA512

            4287b072fab60366309ba72248357df6ad7d48ace5d4adcc6e56a6ab54e297813d109472d7620eed5b0410cc05752b21869fab51d154742a52d65362085a98fb

          • C:\Windows\SysWOW64\nethtsrv.exe

            Filesize

            176KB

            MD5

            ddeca5890ff27b37a551e83c4bb4330f

            SHA1

            d3a952d9e0b5660189f66888d6fe5c46c4c0fedb

            SHA256

            3be51afc03340b79d8f110c3c6415f3605ecabc0aa304862c991e3a8ad84d1ec

            SHA512

            4287b072fab60366309ba72248357df6ad7d48ace5d4adcc6e56a6ab54e297813d109472d7620eed5b0410cc05752b21869fab51d154742a52d65362085a98fb

          • C:\Windows\SysWOW64\netupdsrv.exe

            Filesize

            158KB

            MD5

            c56446b213782efcc58813f50ffb70ec

            SHA1

            c046e4142ef25542b645408c262312876165f7b9

            SHA256

            36cc1f8c87197483fbe1c33d0c097b6303b86ea1b60bc930eb76ba6cde015d84

            SHA512

            64e1bdc4130496e709ebb3b85b6e201f6590aad06e7dac0a29d019df0ec1cabca682ba9a5142f4757e2344f538b8131f705701ebf0c52d1e3a3af56bc1398f12

          • C:\Windows\SysWOW64\netupdsrv.exe

            Filesize

            158KB

            MD5

            c56446b213782efcc58813f50ffb70ec

            SHA1

            c046e4142ef25542b645408c262312876165f7b9

            SHA256

            36cc1f8c87197483fbe1c33d0c097b6303b86ea1b60bc930eb76ba6cde015d84

            SHA512

            64e1bdc4130496e709ebb3b85b6e201f6590aad06e7dac0a29d019df0ec1cabca682ba9a5142f4757e2344f538b8131f705701ebf0c52d1e3a3af56bc1398f12

          • C:\Windows\SysWOW64\netupdsrv.exe

            Filesize

            158KB

            MD5

            c56446b213782efcc58813f50ffb70ec

            SHA1

            c046e4142ef25542b645408c262312876165f7b9

            SHA256

            36cc1f8c87197483fbe1c33d0c097b6303b86ea1b60bc930eb76ba6cde015d84

            SHA512

            64e1bdc4130496e709ebb3b85b6e201f6590aad06e7dac0a29d019df0ec1cabca682ba9a5142f4757e2344f538b8131f705701ebf0c52d1e3a3af56bc1398f12

          • memory/348-166-0x0000000000000000-mapping.dmp

          • memory/1508-141-0x0000000000000000-mapping.dmp

          • memory/1724-132-0x0000000000360000-0x00000000007BE000-memory.dmp

            Filesize

            4.4MB

          • memory/1724-134-0x0000000000360000-0x00000000007BE000-memory.dmp

            Filesize

            4.4MB

          • memory/1972-143-0x0000000000000000-mapping.dmp

          • memory/2648-160-0x0000000000000000-mapping.dmp

          • memory/3128-148-0x0000000000000000-mapping.dmp

          • memory/3132-159-0x0000000000000000-mapping.dmp

          • memory/3672-138-0x0000000000000000-mapping.dmp

          • memory/4040-154-0x0000000000000000-mapping.dmp

          • memory/4160-167-0x0000000000000000-mapping.dmp

          • memory/4336-142-0x0000000000000000-mapping.dmp

          • memory/4620-137-0x0000000000000000-mapping.dmp