Analysis

  • max time kernel
    203s
  • max time network
    208s
  • 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 10:21

General

  • Target

    7dbe52512973428241c8f75009cb432663236ab8f0f9c11276814ee765ac441e.exe

  • Size

    602KB

  • MD5

    38ffe244fec3a4ec87d9136452d67db4

  • SHA1

    55babfda8a42dc2c3625b5eca47c57e5216d7e1b

  • SHA256

    7dbe52512973428241c8f75009cb432663236ab8f0f9c11276814ee765ac441e

  • SHA512

    dc2df81710265e920915dc3a24251b30742bf5d1f6d1bf8c23609a9f68c90279587ba376b9f28ebf7cf6a7f9f6b0ef2267d35b6f0a9a8c8a169bb15066aff6f3

  • SSDEEP

    12288:tIny5DYTjfqTfRiHB33pgHrw16p+Dxl0gzkNY:5UTj1HNc01BlbA

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\7dbe52512973428241c8f75009cb432663236ab8f0f9c11276814ee765ac441e.exe
    "C:\Users\Admin\AppData\Local\Temp\7dbe52512973428241c8f75009cb432663236ab8f0f9c11276814ee765ac441e.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:1676
    • C:\Windows\SysWOW64\net.exe
      net stop nethttpservice
      2⤵
      • Suspicious use of WriteProcessMemory
      PID:3872
      • C:\Windows\SysWOW64\net1.exe
        C:\Windows\system32\net1 stop nethttpservice
        3⤵
          PID:2136
      • C:\Windows\SysWOW64\net.exe
        net stop serviceupdater
        2⤵
        • Suspicious use of WriteProcessMemory
        PID:3488
        • C:\Windows\SysWOW64\net1.exe
          C:\Windows\system32\net1 stop serviceupdater
          3⤵
            PID:4196
        • C:\Windows\SysWOW64\installd.exe
          "C:\Windows\system32\installd.exe" nethfdrv
          2⤵
          • Executes dropped EXE
          • Loads dropped DLL
          PID:4868
        • C:\Windows\SysWOW64\nethtsrv.exe
          "C:\Windows\system32\nethtsrv.exe" -nfdi
          2⤵
          • Executes dropped EXE
          • Loads dropped DLL
          PID:2220
        • C:\Windows\SysWOW64\netupdsrv.exe
          "C:\Windows\system32\netupdsrv.exe" -nfdi
          2⤵
          • Executes dropped EXE
          PID:1140
        • C:\Windows\SysWOW64\net.exe
          net start nethttpservice
          2⤵
          • Suspicious use of WriteProcessMemory
          PID:1440
          • C:\Windows\SysWOW64\net1.exe
            C:\Windows\system32\net1 start nethttpservice
            3⤵
              PID:2176
          • C:\Windows\SysWOW64\net.exe
            net start serviceupdater
            2⤵
            • Suspicious use of WriteProcessMemory
            PID:4472
            • C:\Windows\SysWOW64\net1.exe
              C:\Windows\system32\net1 start serviceupdater
              3⤵
                PID:3304
          • 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:3280
          • C:\Windows\SysWOW64\netupdsrv.exe
            C:\Windows\SysWOW64\netupdsrv.exe
            1⤵
            • Executes dropped EXE
            PID:2224

          Network

          MITRE ATT&CK Enterprise v6

          Replay Monitor

          Loading Replay Monitor...

          Downloads

          • C:\Users\Admin\AppData\Local\Temp\nsj69A9.tmp\System.dll

            Filesize

            11KB

            MD5

            c17103ae9072a06da581dec998343fc1

            SHA1

            b72148c6bdfaada8b8c3f950e610ee7cf1da1f8d

            SHA256

            dc58d8ad81cacb0c1ed72e33bff8f23ea40b5252b5bb55d393a0903e6819ae2f

            SHA512

            d32a71aaef18e993f28096d536e41c4d016850721b31171513ce28bbd805a54fd290b7c3e9d935f72e676a1acfb4f0dcc89d95040a0dd29f2b6975855c18986f

          • C:\Users\Admin\AppData\Local\Temp\nsj69A9.tmp\nsExec.dll

            Filesize

            6KB

            MD5

            acc2b699edfea5bf5aae45aba3a41e96

            SHA1

            d2accf4d494e43ceb2cff69abe4dd17147d29cc2

            SHA256

            168a974eaa3f588d759db3f47c1a9fdc3494ba1fa1a73a84e5e3b2a4d58abd7e

            SHA512

            e29ea10ada98c71a18273b04f44f385b120d4e8473e441ce5748cfa44a23648814f2656f429b85440157988c88de776c6ac008dc38bf09cbb746c230a46c69fe

          • C:\Users\Admin\AppData\Local\Temp\nsj69A9.tmp\nsExec.dll

            Filesize

            6KB

            MD5

            acc2b699edfea5bf5aae45aba3a41e96

            SHA1

            d2accf4d494e43ceb2cff69abe4dd17147d29cc2

            SHA256

            168a974eaa3f588d759db3f47c1a9fdc3494ba1fa1a73a84e5e3b2a4d58abd7e

            SHA512

            e29ea10ada98c71a18273b04f44f385b120d4e8473e441ce5748cfa44a23648814f2656f429b85440157988c88de776c6ac008dc38bf09cbb746c230a46c69fe

          • C:\Users\Admin\AppData\Local\Temp\nsj69A9.tmp\nsExec.dll

            Filesize

            6KB

            MD5

            acc2b699edfea5bf5aae45aba3a41e96

            SHA1

            d2accf4d494e43ceb2cff69abe4dd17147d29cc2

            SHA256

            168a974eaa3f588d759db3f47c1a9fdc3494ba1fa1a73a84e5e3b2a4d58abd7e

            SHA512

            e29ea10ada98c71a18273b04f44f385b120d4e8473e441ce5748cfa44a23648814f2656f429b85440157988c88de776c6ac008dc38bf09cbb746c230a46c69fe

          • C:\Users\Admin\AppData\Local\Temp\nsj69A9.tmp\nsExec.dll

            Filesize

            6KB

            MD5

            acc2b699edfea5bf5aae45aba3a41e96

            SHA1

            d2accf4d494e43ceb2cff69abe4dd17147d29cc2

            SHA256

            168a974eaa3f588d759db3f47c1a9fdc3494ba1fa1a73a84e5e3b2a4d58abd7e

            SHA512

            e29ea10ada98c71a18273b04f44f385b120d4e8473e441ce5748cfa44a23648814f2656f429b85440157988c88de776c6ac008dc38bf09cbb746c230a46c69fe

          • C:\Users\Admin\AppData\Local\Temp\nsj69A9.tmp\nsExec.dll

            Filesize

            6KB

            MD5

            acc2b699edfea5bf5aae45aba3a41e96

            SHA1

            d2accf4d494e43ceb2cff69abe4dd17147d29cc2

            SHA256

            168a974eaa3f588d759db3f47c1a9fdc3494ba1fa1a73a84e5e3b2a4d58abd7e

            SHA512

            e29ea10ada98c71a18273b04f44f385b120d4e8473e441ce5748cfa44a23648814f2656f429b85440157988c88de776c6ac008dc38bf09cbb746c230a46c69fe

          • C:\Users\Admin\AppData\Local\Temp\nsj69A9.tmp\nsExec.dll

            Filesize

            6KB

            MD5

            acc2b699edfea5bf5aae45aba3a41e96

            SHA1

            d2accf4d494e43ceb2cff69abe4dd17147d29cc2

            SHA256

            168a974eaa3f588d759db3f47c1a9fdc3494ba1fa1a73a84e5e3b2a4d58abd7e

            SHA512

            e29ea10ada98c71a18273b04f44f385b120d4e8473e441ce5748cfa44a23648814f2656f429b85440157988c88de776c6ac008dc38bf09cbb746c230a46c69fe

          • C:\Users\Admin\AppData\Local\Temp\nsj69A9.tmp\nsExec.dll

            Filesize

            6KB

            MD5

            acc2b699edfea5bf5aae45aba3a41e96

            SHA1

            d2accf4d494e43ceb2cff69abe4dd17147d29cc2

            SHA256

            168a974eaa3f588d759db3f47c1a9fdc3494ba1fa1a73a84e5e3b2a4d58abd7e

            SHA512

            e29ea10ada98c71a18273b04f44f385b120d4e8473e441ce5748cfa44a23648814f2656f429b85440157988c88de776c6ac008dc38bf09cbb746c230a46c69fe

          • C:\Users\Admin\AppData\Local\Temp\nsj69A9.tmp\nsExec.dll

            Filesize

            6KB

            MD5

            acc2b699edfea5bf5aae45aba3a41e96

            SHA1

            d2accf4d494e43ceb2cff69abe4dd17147d29cc2

            SHA256

            168a974eaa3f588d759db3f47c1a9fdc3494ba1fa1a73a84e5e3b2a4d58abd7e

            SHA512

            e29ea10ada98c71a18273b04f44f385b120d4e8473e441ce5748cfa44a23648814f2656f429b85440157988c88de776c6ac008dc38bf09cbb746c230a46c69fe

          • C:\Windows\SysWOW64\hfnapi.dll

            Filesize

            106KB

            MD5

            33f04d6143401328f6416c35f673a831

            SHA1

            b0a1888afede78ecdd80ec952a5f10eb8a02766c

            SHA256

            9d9fd66bc36a7250f0339901fe6bd1bb8cc5949670e092039548383b795ee61b

            SHA512

            5a5ac582844c5901d02015692b0abc0dc110821848471faff7d7a7e3f8d4eb5bd57a7d27dcb0915026b0945f6a0ef850e37da796530d20b5b0fedf3ee0cf9a3d

          • C:\Windows\SysWOW64\hfnapi.dll

            Filesize

            106KB

            MD5

            33f04d6143401328f6416c35f673a831

            SHA1

            b0a1888afede78ecdd80ec952a5f10eb8a02766c

            SHA256

            9d9fd66bc36a7250f0339901fe6bd1bb8cc5949670e092039548383b795ee61b

            SHA512

            5a5ac582844c5901d02015692b0abc0dc110821848471faff7d7a7e3f8d4eb5bd57a7d27dcb0915026b0945f6a0ef850e37da796530d20b5b0fedf3ee0cf9a3d

          • C:\Windows\SysWOW64\hfnapi.dll

            Filesize

            106KB

            MD5

            33f04d6143401328f6416c35f673a831

            SHA1

            b0a1888afede78ecdd80ec952a5f10eb8a02766c

            SHA256

            9d9fd66bc36a7250f0339901fe6bd1bb8cc5949670e092039548383b795ee61b

            SHA512

            5a5ac582844c5901d02015692b0abc0dc110821848471faff7d7a7e3f8d4eb5bd57a7d27dcb0915026b0945f6a0ef850e37da796530d20b5b0fedf3ee0cf9a3d

          • C:\Windows\SysWOW64\hfnapi.dll

            Filesize

            106KB

            MD5

            33f04d6143401328f6416c35f673a831

            SHA1

            b0a1888afede78ecdd80ec952a5f10eb8a02766c

            SHA256

            9d9fd66bc36a7250f0339901fe6bd1bb8cc5949670e092039548383b795ee61b

            SHA512

            5a5ac582844c5901d02015692b0abc0dc110821848471faff7d7a7e3f8d4eb5bd57a7d27dcb0915026b0945f6a0ef850e37da796530d20b5b0fedf3ee0cf9a3d

          • C:\Windows\SysWOW64\hfpapi.dll

            Filesize

            241KB

            MD5

            4e40b4d3b1632fc3a7b0916d27b1982b

            SHA1

            0bfb8ace50e2f54f6a06f71ecd52185a79a9e80c

            SHA256

            cd91b84e135f6e7372599f35f6ecf1cedb66bf50c1603a009d935cc60cf2fbdc

            SHA512

            334496a51907892fa7a16fd7f79c8214b8997f0f55bd0f3a41f19cf024d51cada5a5dba1d296c944440e2ba4e2d242633b9ec525daec3c54080ba7f1c6539eab

          • C:\Windows\SysWOW64\hfpapi.dll

            Filesize

            241KB

            MD5

            4e40b4d3b1632fc3a7b0916d27b1982b

            SHA1

            0bfb8ace50e2f54f6a06f71ecd52185a79a9e80c

            SHA256

            cd91b84e135f6e7372599f35f6ecf1cedb66bf50c1603a009d935cc60cf2fbdc

            SHA512

            334496a51907892fa7a16fd7f79c8214b8997f0f55bd0f3a41f19cf024d51cada5a5dba1d296c944440e2ba4e2d242633b9ec525daec3c54080ba7f1c6539eab

          • C:\Windows\SysWOW64\hfpapi.dll

            Filesize

            241KB

            MD5

            4e40b4d3b1632fc3a7b0916d27b1982b

            SHA1

            0bfb8ace50e2f54f6a06f71ecd52185a79a9e80c

            SHA256

            cd91b84e135f6e7372599f35f6ecf1cedb66bf50c1603a009d935cc60cf2fbdc

            SHA512

            334496a51907892fa7a16fd7f79c8214b8997f0f55bd0f3a41f19cf024d51cada5a5dba1d296c944440e2ba4e2d242633b9ec525daec3c54080ba7f1c6539eab

          • C:\Windows\SysWOW64\installd.exe

            Filesize

            108KB

            MD5

            030babf0f8511a23b5cd12f4f607a55a

            SHA1

            c0da262b269b53ef29bd356ca75e9cff0d548002

            SHA256

            3cf3bcdf68ce1c6cd09fe355ffbd66afbec106f411063b8fb7eff906abf2c649

            SHA512

            de2bf48a3bce45e0b815112b478354f2b651e14ba2c26bf1b9362c9e7b3353b9144975d25054f3e833a77f399a3b7d443d205a27bf05bb733aa7e1ad71150e0f

          • C:\Windows\SysWOW64\installd.exe

            Filesize

            108KB

            MD5

            030babf0f8511a23b5cd12f4f607a55a

            SHA1

            c0da262b269b53ef29bd356ca75e9cff0d548002

            SHA256

            3cf3bcdf68ce1c6cd09fe355ffbd66afbec106f411063b8fb7eff906abf2c649

            SHA512

            de2bf48a3bce45e0b815112b478354f2b651e14ba2c26bf1b9362c9e7b3353b9144975d25054f3e833a77f399a3b7d443d205a27bf05bb733aa7e1ad71150e0f

          • C:\Windows\SysWOW64\nethtsrv.exe

            Filesize

            176KB

            MD5

            bf65f4f5680b7ed4b000c5ba3ec912de

            SHA1

            71f9f7d963e7517867b5153f1d2cd5de0926fb5a

            SHA256

            a3134473e8a069f79aecdebdebf3fce6cfd3018899c6dddd62077b38b34528f1

            SHA512

            34b4efd9f68d28cc48405c1acad33a3ea7d439280015e2490ea97eaf0f10e504f1184e0d54ca68d91ee7a35f1843ebc90f6b1d12c5e92f94e028c849a4b51a3e

          • C:\Windows\SysWOW64\nethtsrv.exe

            Filesize

            176KB

            MD5

            bf65f4f5680b7ed4b000c5ba3ec912de

            SHA1

            71f9f7d963e7517867b5153f1d2cd5de0926fb5a

            SHA256

            a3134473e8a069f79aecdebdebf3fce6cfd3018899c6dddd62077b38b34528f1

            SHA512

            34b4efd9f68d28cc48405c1acad33a3ea7d439280015e2490ea97eaf0f10e504f1184e0d54ca68d91ee7a35f1843ebc90f6b1d12c5e92f94e028c849a4b51a3e

          • C:\Windows\SysWOW64\nethtsrv.exe

            Filesize

            176KB

            MD5

            bf65f4f5680b7ed4b000c5ba3ec912de

            SHA1

            71f9f7d963e7517867b5153f1d2cd5de0926fb5a

            SHA256

            a3134473e8a069f79aecdebdebf3fce6cfd3018899c6dddd62077b38b34528f1

            SHA512

            34b4efd9f68d28cc48405c1acad33a3ea7d439280015e2490ea97eaf0f10e504f1184e0d54ca68d91ee7a35f1843ebc90f6b1d12c5e92f94e028c849a4b51a3e

          • C:\Windows\SysWOW64\netupdsrv.exe

            Filesize

            159KB

            MD5

            0ca4be27f591e1c051a1cd073af4b73c

            SHA1

            3cae5061a2530823f25e6e322193725407a7a849

            SHA256

            4853527f31586be9e4e0b079f60ddc79793775da8b857cb53ccb57ababd6c2bc

            SHA512

            3f7c2d3f9e46a1e51a055c5c2caf1039a6202a97892185643d080fa4ddee7eefcae333b3f83f4122b629d610eb8ed953baed243988cd45eec527df6bf6ca5130

          • C:\Windows\SysWOW64\netupdsrv.exe

            Filesize

            159KB

            MD5

            0ca4be27f591e1c051a1cd073af4b73c

            SHA1

            3cae5061a2530823f25e6e322193725407a7a849

            SHA256

            4853527f31586be9e4e0b079f60ddc79793775da8b857cb53ccb57ababd6c2bc

            SHA512

            3f7c2d3f9e46a1e51a055c5c2caf1039a6202a97892185643d080fa4ddee7eefcae333b3f83f4122b629d610eb8ed953baed243988cd45eec527df6bf6ca5130

          • C:\Windows\SysWOW64\netupdsrv.exe

            Filesize

            159KB

            MD5

            0ca4be27f591e1c051a1cd073af4b73c

            SHA1

            3cae5061a2530823f25e6e322193725407a7a849

            SHA256

            4853527f31586be9e4e0b079f60ddc79793775da8b857cb53ccb57ababd6c2bc

            SHA512

            3f7c2d3f9e46a1e51a055c5c2caf1039a6202a97892185643d080fa4ddee7eefcae333b3f83f4122b629d610eb8ed953baed243988cd45eec527df6bf6ca5130

          • memory/1140-154-0x0000000000000000-mapping.dmp

          • memory/1440-159-0x0000000000000000-mapping.dmp

          • memory/1676-132-0x0000000000360000-0x00000000007BE000-memory.dmp

            Filesize

            4.4MB

          • memory/1676-138-0x0000000000360000-0x00000000007BE000-memory.dmp

            Filesize

            4.4MB

          • memory/1676-169-0x0000000000360000-0x00000000007BE000-memory.dmp

            Filesize

            4.4MB

          • memory/2136-137-0x0000000000000000-mapping.dmp

          • memory/2176-160-0x0000000000000000-mapping.dmp

          • memory/2220-148-0x0000000000000000-mapping.dmp

          • memory/3304-167-0x0000000000000000-mapping.dmp

          • memory/3488-141-0x0000000000000000-mapping.dmp

          • memory/3872-136-0x0000000000000000-mapping.dmp

          • memory/4196-142-0x0000000000000000-mapping.dmp

          • memory/4472-166-0x0000000000000000-mapping.dmp

          • memory/4868-143-0x0000000000000000-mapping.dmp