Analysis

  • max time kernel
    298s
  • max time network
    326s
  • 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 10:07

General

  • Target

    f57f47a05c57ce3eb2273ae6b4daf1d62c10d05f54bbc9ca3fa15d53df23c572.exe

  • Size

    602KB

  • MD5

    5b2ed7bdbf5f4a26540a9723db777824

  • SHA1

    470cdcd0e165317ac90931e0b5ad9943bd8c3418

  • SHA256

    f57f47a05c57ce3eb2273ae6b4daf1d62c10d05f54bbc9ca3fa15d53df23c572

  • SHA512

    380c41c3bfd25eec0389a89750b900d3e52ae5237653a025df0f3314b1ab5f223c7a304d5086aac1e20ef7bd7e7a80fca1080fe40d73a6ddda2e86b97225133c

  • SSDEEP

    12288:PIny5DYTcI6MWoF1ouz6mfT6NdARYvP/gXsnm40vQ+uIv:XUTc1pXyjmbd/ysn3oJv

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\f57f47a05c57ce3eb2273ae6b4daf1d62c10d05f54bbc9ca3fa15d53df23c572.exe
    "C:\Users\Admin\AppData\Local\Temp\f57f47a05c57ce3eb2273ae6b4daf1d62c10d05f54bbc9ca3fa15d53df23c572.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:1612
    • C:\Windows\SysWOW64\net.exe
      net stop nethttpservice
      2⤵
      • Suspicious use of WriteProcessMemory
      PID:1148
      • C:\Windows\SysWOW64\net1.exe
        C:\Windows\system32\net1 stop nethttpservice
        3⤵
          PID:3108
      • C:\Windows\SysWOW64\net.exe
        net stop serviceupdater
        2⤵
        • Suspicious use of WriteProcessMemory
        PID:3880
        • C:\Windows\SysWOW64\net1.exe
          C:\Windows\system32\net1 stop serviceupdater
          3⤵
            PID:3672
        • C:\Windows\SysWOW64\installd.exe
          "C:\Windows\system32\installd.exe" nethfdrv
          2⤵
          • Executes dropped EXE
          • Loads dropped DLL
          PID:4844
        • C:\Windows\SysWOW64\nethtsrv.exe
          "C:\Windows\system32\nethtsrv.exe" -nfdi
          2⤵
          • Executes dropped EXE
          • Loads dropped DLL
          PID:4596
        • C:\Windows\SysWOW64\netupdsrv.exe
          "C:\Windows\system32\netupdsrv.exe" -nfdi
          2⤵
          • Executes dropped EXE
          PID:3900
        • C:\Windows\SysWOW64\net.exe
          net start nethttpservice
          2⤵
          • Suspicious use of WriteProcessMemory
          PID:2624
          • C:\Windows\SysWOW64\net1.exe
            C:\Windows\system32\net1 start nethttpservice
            3⤵
              PID:1536
          • C:\Windows\SysWOW64\net.exe
            net start serviceupdater
            2⤵
            • Suspicious use of WriteProcessMemory
            PID:4656
            • C:\Windows\SysWOW64\net1.exe
              C:\Windows\system32\net1 start serviceupdater
              3⤵
                PID:452
          • 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:4236
          • C:\Windows\SysWOW64\netupdsrv.exe
            C:\Windows\SysWOW64\netupdsrv.exe
            1⤵
            • Executes dropped EXE
            PID:8

          Network

          MITRE ATT&CK Enterprise v6

          Replay Monitor

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          Downloads

          • C:\Users\Admin\AppData\Local\Temp\nsz22B.tmp\System.dll

            Filesize

            11KB

            MD5

            c17103ae9072a06da581dec998343fc1

            SHA1

            b72148c6bdfaada8b8c3f950e610ee7cf1da1f8d

            SHA256

            dc58d8ad81cacb0c1ed72e33bff8f23ea40b5252b5bb55d393a0903e6819ae2f

            SHA512

            d32a71aaef18e993f28096d536e41c4d016850721b31171513ce28bbd805a54fd290b7c3e9d935f72e676a1acfb4f0dcc89d95040a0dd29f2b6975855c18986f

          • C:\Users\Admin\AppData\Local\Temp\nsz22B.tmp\nsExec.dll

            Filesize

            6KB

            MD5

            acc2b699edfea5bf5aae45aba3a41e96

            SHA1

            d2accf4d494e43ceb2cff69abe4dd17147d29cc2

            SHA256

            168a974eaa3f588d759db3f47c1a9fdc3494ba1fa1a73a84e5e3b2a4d58abd7e

            SHA512

            e29ea10ada98c71a18273b04f44f385b120d4e8473e441ce5748cfa44a23648814f2656f429b85440157988c88de776c6ac008dc38bf09cbb746c230a46c69fe

          • C:\Users\Admin\AppData\Local\Temp\nsz22B.tmp\nsExec.dll

            Filesize

            6KB

            MD5

            acc2b699edfea5bf5aae45aba3a41e96

            SHA1

            d2accf4d494e43ceb2cff69abe4dd17147d29cc2

            SHA256

            168a974eaa3f588d759db3f47c1a9fdc3494ba1fa1a73a84e5e3b2a4d58abd7e

            SHA512

            e29ea10ada98c71a18273b04f44f385b120d4e8473e441ce5748cfa44a23648814f2656f429b85440157988c88de776c6ac008dc38bf09cbb746c230a46c69fe

          • C:\Users\Admin\AppData\Local\Temp\nsz22B.tmp\nsExec.dll

            Filesize

            6KB

            MD5

            acc2b699edfea5bf5aae45aba3a41e96

            SHA1

            d2accf4d494e43ceb2cff69abe4dd17147d29cc2

            SHA256

            168a974eaa3f588d759db3f47c1a9fdc3494ba1fa1a73a84e5e3b2a4d58abd7e

            SHA512

            e29ea10ada98c71a18273b04f44f385b120d4e8473e441ce5748cfa44a23648814f2656f429b85440157988c88de776c6ac008dc38bf09cbb746c230a46c69fe

          • C:\Users\Admin\AppData\Local\Temp\nsz22B.tmp\nsExec.dll

            Filesize

            6KB

            MD5

            acc2b699edfea5bf5aae45aba3a41e96

            SHA1

            d2accf4d494e43ceb2cff69abe4dd17147d29cc2

            SHA256

            168a974eaa3f588d759db3f47c1a9fdc3494ba1fa1a73a84e5e3b2a4d58abd7e

            SHA512

            e29ea10ada98c71a18273b04f44f385b120d4e8473e441ce5748cfa44a23648814f2656f429b85440157988c88de776c6ac008dc38bf09cbb746c230a46c69fe

          • C:\Users\Admin\AppData\Local\Temp\nsz22B.tmp\nsExec.dll

            Filesize

            6KB

            MD5

            acc2b699edfea5bf5aae45aba3a41e96

            SHA1

            d2accf4d494e43ceb2cff69abe4dd17147d29cc2

            SHA256

            168a974eaa3f588d759db3f47c1a9fdc3494ba1fa1a73a84e5e3b2a4d58abd7e

            SHA512

            e29ea10ada98c71a18273b04f44f385b120d4e8473e441ce5748cfa44a23648814f2656f429b85440157988c88de776c6ac008dc38bf09cbb746c230a46c69fe

          • C:\Users\Admin\AppData\Local\Temp\nsz22B.tmp\nsExec.dll

            Filesize

            6KB

            MD5

            acc2b699edfea5bf5aae45aba3a41e96

            SHA1

            d2accf4d494e43ceb2cff69abe4dd17147d29cc2

            SHA256

            168a974eaa3f588d759db3f47c1a9fdc3494ba1fa1a73a84e5e3b2a4d58abd7e

            SHA512

            e29ea10ada98c71a18273b04f44f385b120d4e8473e441ce5748cfa44a23648814f2656f429b85440157988c88de776c6ac008dc38bf09cbb746c230a46c69fe

          • C:\Users\Admin\AppData\Local\Temp\nsz22B.tmp\nsExec.dll

            Filesize

            6KB

            MD5

            acc2b699edfea5bf5aae45aba3a41e96

            SHA1

            d2accf4d494e43ceb2cff69abe4dd17147d29cc2

            SHA256

            168a974eaa3f588d759db3f47c1a9fdc3494ba1fa1a73a84e5e3b2a4d58abd7e

            SHA512

            e29ea10ada98c71a18273b04f44f385b120d4e8473e441ce5748cfa44a23648814f2656f429b85440157988c88de776c6ac008dc38bf09cbb746c230a46c69fe

          • C:\Users\Admin\AppData\Local\Temp\nsz22B.tmp\nsExec.dll

            Filesize

            6KB

            MD5

            acc2b699edfea5bf5aae45aba3a41e96

            SHA1

            d2accf4d494e43ceb2cff69abe4dd17147d29cc2

            SHA256

            168a974eaa3f588d759db3f47c1a9fdc3494ba1fa1a73a84e5e3b2a4d58abd7e

            SHA512

            e29ea10ada98c71a18273b04f44f385b120d4e8473e441ce5748cfa44a23648814f2656f429b85440157988c88de776c6ac008dc38bf09cbb746c230a46c69fe

          • C:\Windows\SysWOW64\hfnapi.dll

            Filesize

            106KB

            MD5

            e10371e35e55cffbb13ffab66dbf4b00

            SHA1

            c31ac9b15d4e7947df24aba574dece94838490d4

            SHA256

            b1146933acc909ec8d2a912a7d7d74f96e46ce6ce1f149405a86e982d0f72d94

            SHA512

            abf2fae138126fa8a3850541f993676c644eac3635fa73f08f8dce8392f4d991e161e952d459263ebf5f6a7c72250c5581d3d4a6b5c0d2a257f9df8212b888a1

          • C:\Windows\SysWOW64\hfnapi.dll

            Filesize

            106KB

            MD5

            e10371e35e55cffbb13ffab66dbf4b00

            SHA1

            c31ac9b15d4e7947df24aba574dece94838490d4

            SHA256

            b1146933acc909ec8d2a912a7d7d74f96e46ce6ce1f149405a86e982d0f72d94

            SHA512

            abf2fae138126fa8a3850541f993676c644eac3635fa73f08f8dce8392f4d991e161e952d459263ebf5f6a7c72250c5581d3d4a6b5c0d2a257f9df8212b888a1

          • C:\Windows\SysWOW64\hfnapi.dll

            Filesize

            106KB

            MD5

            e10371e35e55cffbb13ffab66dbf4b00

            SHA1

            c31ac9b15d4e7947df24aba574dece94838490d4

            SHA256

            b1146933acc909ec8d2a912a7d7d74f96e46ce6ce1f149405a86e982d0f72d94

            SHA512

            abf2fae138126fa8a3850541f993676c644eac3635fa73f08f8dce8392f4d991e161e952d459263ebf5f6a7c72250c5581d3d4a6b5c0d2a257f9df8212b888a1

          • C:\Windows\SysWOW64\hfnapi.dll

            Filesize

            106KB

            MD5

            e10371e35e55cffbb13ffab66dbf4b00

            SHA1

            c31ac9b15d4e7947df24aba574dece94838490d4

            SHA256

            b1146933acc909ec8d2a912a7d7d74f96e46ce6ce1f149405a86e982d0f72d94

            SHA512

            abf2fae138126fa8a3850541f993676c644eac3635fa73f08f8dce8392f4d991e161e952d459263ebf5f6a7c72250c5581d3d4a6b5c0d2a257f9df8212b888a1

          • C:\Windows\SysWOW64\hfpapi.dll

            Filesize

            244KB

            MD5

            62555a83d6622bb205988b4f47bab9b6

            SHA1

            ae6e3238514032211d5f709b16615201c6045a31

            SHA256

            a6ac034b21e60c29142c5100e5b1eb88644acc974f5cbc3cb7d89665b40aa426

            SHA512

            79f13d00aba14a8d9e0126ddf5cfe2edbc8a461be8ca19de51999dcc2310e708b27c2291e26ffb17ad6a7cb9d02e028c8af6f7ea3691b57b9d196a1ffe3285cb

          • C:\Windows\SysWOW64\hfpapi.dll

            Filesize

            244KB

            MD5

            62555a83d6622bb205988b4f47bab9b6

            SHA1

            ae6e3238514032211d5f709b16615201c6045a31

            SHA256

            a6ac034b21e60c29142c5100e5b1eb88644acc974f5cbc3cb7d89665b40aa426

            SHA512

            79f13d00aba14a8d9e0126ddf5cfe2edbc8a461be8ca19de51999dcc2310e708b27c2291e26ffb17ad6a7cb9d02e028c8af6f7ea3691b57b9d196a1ffe3285cb

          • C:\Windows\SysWOW64\hfpapi.dll

            Filesize

            244KB

            MD5

            62555a83d6622bb205988b4f47bab9b6

            SHA1

            ae6e3238514032211d5f709b16615201c6045a31

            SHA256

            a6ac034b21e60c29142c5100e5b1eb88644acc974f5cbc3cb7d89665b40aa426

            SHA512

            79f13d00aba14a8d9e0126ddf5cfe2edbc8a461be8ca19de51999dcc2310e708b27c2291e26ffb17ad6a7cb9d02e028c8af6f7ea3691b57b9d196a1ffe3285cb

          • C:\Windows\SysWOW64\installd.exe

            Filesize

            108KB

            MD5

            eafcf167a1cce4dde48885f2fcb1e361

            SHA1

            eaa23e4e13d081c6cddd3ba812a901b8508d8ed4

            SHA256

            78692cfb0aa511291b6be8c1c41f5038e4af7cdc641ea1c21474cb0a45cb110d

            SHA512

            d3f611c7034767066eaddb74e4b0e8c68b5d2ee10bc311f06f59db6ce5e1564be0feddfb843b6396e5dc04110f450980222573c1abc6be2d26cf9c6d3387b103

          • C:\Windows\SysWOW64\installd.exe

            Filesize

            108KB

            MD5

            eafcf167a1cce4dde48885f2fcb1e361

            SHA1

            eaa23e4e13d081c6cddd3ba812a901b8508d8ed4

            SHA256

            78692cfb0aa511291b6be8c1c41f5038e4af7cdc641ea1c21474cb0a45cb110d

            SHA512

            d3f611c7034767066eaddb74e4b0e8c68b5d2ee10bc311f06f59db6ce5e1564be0feddfb843b6396e5dc04110f450980222573c1abc6be2d26cf9c6d3387b103

          • C:\Windows\SysWOW64\nethtsrv.exe

            Filesize

            176KB

            MD5

            d88e8239a2ecbd20e72e24e5efce6f36

            SHA1

            4000b87a5981214ffc0cf04db6268afc96e47a7a

            SHA256

            42ae17094d772c736b47ba3c6216e0a9bbca34d706e9115d675bbc32ec8b2d90

            SHA512

            b21b8de6530c01a038fa62292087c99d5c628932e88f4e010b44b427d944ceff3486566477791c4f101fd2065e1a9ea7a6434afd99ca81e859310b9e274a5d0f

          • C:\Windows\SysWOW64\nethtsrv.exe

            Filesize

            176KB

            MD5

            d88e8239a2ecbd20e72e24e5efce6f36

            SHA1

            4000b87a5981214ffc0cf04db6268afc96e47a7a

            SHA256

            42ae17094d772c736b47ba3c6216e0a9bbca34d706e9115d675bbc32ec8b2d90

            SHA512

            b21b8de6530c01a038fa62292087c99d5c628932e88f4e010b44b427d944ceff3486566477791c4f101fd2065e1a9ea7a6434afd99ca81e859310b9e274a5d0f

          • C:\Windows\SysWOW64\nethtsrv.exe

            Filesize

            176KB

            MD5

            d88e8239a2ecbd20e72e24e5efce6f36

            SHA1

            4000b87a5981214ffc0cf04db6268afc96e47a7a

            SHA256

            42ae17094d772c736b47ba3c6216e0a9bbca34d706e9115d675bbc32ec8b2d90

            SHA512

            b21b8de6530c01a038fa62292087c99d5c628932e88f4e010b44b427d944ceff3486566477791c4f101fd2065e1a9ea7a6434afd99ca81e859310b9e274a5d0f

          • C:\Windows\SysWOW64\netupdsrv.exe

            Filesize

            159KB

            MD5

            e8bf0b8a506029add4efadadefd22abc

            SHA1

            728929c792e4394575b6fe7c7c0bde316b17d254

            SHA256

            9ab72c4d3f79d82f5cfcf82c11138c43ae192a4630ebc3b7f7be15756fabf642

            SHA512

            6a5e6a4b5fef6f6f9856964e1f435f7c29b988b37bb39be1964f55a386fca02913d9841d67276c7d5212b069d06f2346e1acfa1bdb4ea317d2e30a55296cf2b5

          • C:\Windows\SysWOW64\netupdsrv.exe

            Filesize

            159KB

            MD5

            e8bf0b8a506029add4efadadefd22abc

            SHA1

            728929c792e4394575b6fe7c7c0bde316b17d254

            SHA256

            9ab72c4d3f79d82f5cfcf82c11138c43ae192a4630ebc3b7f7be15756fabf642

            SHA512

            6a5e6a4b5fef6f6f9856964e1f435f7c29b988b37bb39be1964f55a386fca02913d9841d67276c7d5212b069d06f2346e1acfa1bdb4ea317d2e30a55296cf2b5

          • C:\Windows\SysWOW64\netupdsrv.exe

            Filesize

            159KB

            MD5

            e8bf0b8a506029add4efadadefd22abc

            SHA1

            728929c792e4394575b6fe7c7c0bde316b17d254

            SHA256

            9ab72c4d3f79d82f5cfcf82c11138c43ae192a4630ebc3b7f7be15756fabf642

            SHA512

            6a5e6a4b5fef6f6f9856964e1f435f7c29b988b37bb39be1964f55a386fca02913d9841d67276c7d5212b069d06f2346e1acfa1bdb4ea317d2e30a55296cf2b5

          • memory/452-167-0x0000000000000000-mapping.dmp

          • memory/1148-136-0x0000000000000000-mapping.dmp

          • memory/1536-160-0x0000000000000000-mapping.dmp

          • memory/1612-132-0x0000000000360000-0x00000000007BE000-memory.dmp

            Filesize

            4.4MB

          • memory/1612-137-0x0000000000360000-0x00000000007BE000-memory.dmp

            Filesize

            4.4MB

          • memory/1612-169-0x0000000000360000-0x00000000007BE000-memory.dmp

            Filesize

            4.4MB

          • memory/2624-159-0x0000000000000000-mapping.dmp

          • memory/3108-138-0x0000000000000000-mapping.dmp

          • memory/3672-142-0x0000000000000000-mapping.dmp

          • memory/3880-141-0x0000000000000000-mapping.dmp

          • memory/3900-154-0x0000000000000000-mapping.dmp

          • memory/4596-148-0x0000000000000000-mapping.dmp

          • memory/4656-166-0x0000000000000000-mapping.dmp

          • memory/4844-143-0x0000000000000000-mapping.dmp