Analysis

  • max time kernel
    34s
  • max time network
    47s
  • platform
    windows7_x64
  • resource
    win7-20220812-en
  • resource tags

    arch:x64arch:x86image:win7-20220812-enlocale:en-usos:windows7-x64system
  • submitted
    24/11/2022, 05:35

General

  • Target

    d445382dfb73d46774ae077f9937bd43cb5cee081d6fe646ddd18b580834a4df.exe

  • Size

    602KB

  • MD5

    3a78bf413a1d9f7eb84eb66bc279d42b

  • SHA1

    212ac1ac91809fe3bbbccfb4947357dd0e17c36e

  • SHA256

    d445382dfb73d46774ae077f9937bd43cb5cee081d6fe646ddd18b580834a4df

  • SHA512

    526a76004145a7bf38b9c3540e3db03f9c58125e68370d40f617a09f8cd08e8c40a9fecc37483e0d5334d98dabe1b7609e65c764d67bf836ffe5652154f09411

  • SSDEEP

    12288:ZIny5DYT5dczamQ0MhqjrBaCSYqOnID2qj+YZRS7LFM:VUTrcG6mqjrBb9qOk2q1Paa

Score
8/10

Malware Config

Signatures

  • Drops file in Drivers directory 1 IoCs
  • Executes dropped EXE 5 IoCs
  • Loads dropped DLL 13 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.

  • Runs net.exe
  • Suspicious behavior: LoadsDriver 1 IoCs
  • Suspicious use of AdjustPrivilegeToken 1 IoCs
  • Suspicious use of WriteProcessMemory 50 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\d445382dfb73d46774ae077f9937bd43cb5cee081d6fe646ddd18b580834a4df.exe
    "C:\Users\Admin\AppData\Local\Temp\d445382dfb73d46774ae077f9937bd43cb5cee081d6fe646ddd18b580834a4df.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:984
    • C:\Windows\SysWOW64\net.exe
      net stop nethttpservice
      2⤵
      • Suspicious use of WriteProcessMemory
      PID:2040
      • C:\Windows\SysWOW64\net1.exe
        C:\Windows\system32\net1 stop nethttpservice
        3⤵
          PID:1724
      • C:\Windows\SysWOW64\net.exe
        net stop serviceupdater
        2⤵
        • Suspicious use of WriteProcessMemory
        PID:2008
        • C:\Windows\SysWOW64\net1.exe
          C:\Windows\system32\net1 stop serviceupdater
          3⤵
            PID:1488
        • C:\Windows\SysWOW64\installd.exe
          "C:\Windows\system32\installd.exe" nethfdrv
          2⤵
          • Executes dropped EXE
          • Loads dropped DLL
          PID:1988
        • C:\Windows\SysWOW64\nethtsrv.exe
          "C:\Windows\system32\nethtsrv.exe" -nfdi
          2⤵
          • Executes dropped EXE
          • Loads dropped DLL
          PID:556
        • C:\Windows\SysWOW64\netupdsrv.exe
          "C:\Windows\system32\netupdsrv.exe" -nfdi
          2⤵
          • Executes dropped EXE
          PID:1348
        • C:\Windows\SysWOW64\net.exe
          net start nethttpservice
          2⤵
          • Suspicious use of WriteProcessMemory
          PID:1948
          • C:\Windows\SysWOW64\net1.exe
            C:\Windows\system32\net1 start nethttpservice
            3⤵
              PID:1912
          • C:\Windows\SysWOW64\net.exe
            net start serviceupdater
            2⤵
            • Suspicious use of WriteProcessMemory
            PID:2000
            • C:\Windows\SysWOW64\net1.exe
              C:\Windows\system32\net1 start serviceupdater
              3⤵
                PID:1332
          • C:\Windows\SysWOW64\nethtsrv.exe
            C:\Windows\SysWOW64\nethtsrv.exe
            1⤵
            • Executes dropped EXE
            • Loads dropped DLL
            • Suspicious use of AdjustPrivilegeToken
            PID:1732
          • C:\Windows\SysWOW64\netupdsrv.exe
            C:\Windows\SysWOW64\netupdsrv.exe
            1⤵
            • Executes dropped EXE
            PID:628

          Network

          MITRE ATT&CK Enterprise v6

          Replay Monitor

          Loading Replay Monitor...

          Downloads

          • C:\Windows\SysWOW64\hfnapi.dll

            Filesize

            106KB

            MD5

            b2c8ac54ffd2fcbfc1bdff5fafe971db

            SHA1

            ef6120a297c1c86b5a9299b6bf8704187e6d7267

            SHA256

            490c63f451489504040a16c176717013e4289a8d22e089e9f9af690f6d6db6d5

            SHA512

            c3f1df0b6f04b289e43e16f5ac526824391260ce0aa9baabe9cfb9ea463dfaad408a2918e277584624f2a7971e97d88c1758523de0d36588fd1f36b6d3682d06

          • C:\Windows\SysWOW64\hfpapi.dll

            Filesize

            244KB

            MD5

            307c0bbbaa029c1c66afd4e97ccf93b4

            SHA1

            cbbcb0f4b4f8277ee6d47e8b35389149ac1d0865

            SHA256

            9bb44432fdb564bf231f32132d624257505c87b2cf679bccdb96b2a0a86a7d84

            SHA512

            c630b8b5fdee1fcf5d6d773670a7b20a137c9d1a9ab34a24e856dbdb2200b0138c6eab43e6712389be11d5317ba821265987800fd4aef41647f3fa16d01547aa

          • C:\Windows\SysWOW64\installd.exe

            Filesize

            108KB

            MD5

            62f98031a58b61213568e29e8ee23aed

            SHA1

            f2bc7a7270d9a7fde0fdc8786a4775a2bb7dc7e5

            SHA256

            35f23311c0d5d27d2e94722cc03e184d3be9d714c3defd3dce70447bd8c62050

            SHA512

            b9b421becd1e81b56bbfa7c96624dc5d4dbd28c1c8d7cca05ba9d069eba7aa816d8f59d2eb2a3b2789802c2ba638d127b6a5aedd673d889d3f95f9d99a837dae

          • C:\Windows\SysWOW64\nethtsrv.exe

            Filesize

            176KB

            MD5

            b1d3b3120bde818371659d8c48000e4a

            SHA1

            95230ff170083f946c1ffbd63d41070221e2abb5

            SHA256

            8a4fba8f70c1153da082d38828f5f6de820f21a44f9b6068dc9957ac40480a4e

            SHA512

            9ead5a36b8c7353a9291b4ebae65906b201c13eb51e063b22e816ce262d5bf18be0ddeb0ead55f8234e9e099f3bd2ffa2b01697b8e1d132c4303625d327ca37d

          • C:\Windows\SysWOW64\nethtsrv.exe

            Filesize

            176KB

            MD5

            b1d3b3120bde818371659d8c48000e4a

            SHA1

            95230ff170083f946c1ffbd63d41070221e2abb5

            SHA256

            8a4fba8f70c1153da082d38828f5f6de820f21a44f9b6068dc9957ac40480a4e

            SHA512

            9ead5a36b8c7353a9291b4ebae65906b201c13eb51e063b22e816ce262d5bf18be0ddeb0ead55f8234e9e099f3bd2ffa2b01697b8e1d132c4303625d327ca37d

          • C:\Windows\SysWOW64\netupdsrv.exe

            Filesize

            159KB

            MD5

            eb302eedf104eedc91f33173b6f0b5c1

            SHA1

            1ced1df11ca5b5981b88d9009537106190ee46b6

            SHA256

            73b3bdd797235ce93e78ac2d83c5661f7092ed62376014f39b7fbdc2874ecfb1

            SHA512

            b151a4aee88d0e9647b94e1a8097c58a94f91727fbd5066a8ddd3230ac59d83c90a674e64b86d8892d239e0a639b1e219689363b34022d809ae4a0a755f56c1b

          • C:\Windows\SysWOW64\netupdsrv.exe

            Filesize

            159KB

            MD5

            eb302eedf104eedc91f33173b6f0b5c1

            SHA1

            1ced1df11ca5b5981b88d9009537106190ee46b6

            SHA256

            73b3bdd797235ce93e78ac2d83c5661f7092ed62376014f39b7fbdc2874ecfb1

            SHA512

            b151a4aee88d0e9647b94e1a8097c58a94f91727fbd5066a8ddd3230ac59d83c90a674e64b86d8892d239e0a639b1e219689363b34022d809ae4a0a755f56c1b

          • \Users\Admin\AppData\Local\Temp\nsj31DD.tmp\System.dll

            Filesize

            11KB

            MD5

            c17103ae9072a06da581dec998343fc1

            SHA1

            b72148c6bdfaada8b8c3f950e610ee7cf1da1f8d

            SHA256

            dc58d8ad81cacb0c1ed72e33bff8f23ea40b5252b5bb55d393a0903e6819ae2f

            SHA512

            d32a71aaef18e993f28096d536e41c4d016850721b31171513ce28bbd805a54fd290b7c3e9d935f72e676a1acfb4f0dcc89d95040a0dd29f2b6975855c18986f

          • \Users\Admin\AppData\Local\Temp\nsj31DD.tmp\nsExec.dll

            Filesize

            6KB

            MD5

            acc2b699edfea5bf5aae45aba3a41e96

            SHA1

            d2accf4d494e43ceb2cff69abe4dd17147d29cc2

            SHA256

            168a974eaa3f588d759db3f47c1a9fdc3494ba1fa1a73a84e5e3b2a4d58abd7e

            SHA512

            e29ea10ada98c71a18273b04f44f385b120d4e8473e441ce5748cfa44a23648814f2656f429b85440157988c88de776c6ac008dc38bf09cbb746c230a46c69fe

          • \Users\Admin\AppData\Local\Temp\nsj31DD.tmp\nsExec.dll

            Filesize

            6KB

            MD5

            acc2b699edfea5bf5aae45aba3a41e96

            SHA1

            d2accf4d494e43ceb2cff69abe4dd17147d29cc2

            SHA256

            168a974eaa3f588d759db3f47c1a9fdc3494ba1fa1a73a84e5e3b2a4d58abd7e

            SHA512

            e29ea10ada98c71a18273b04f44f385b120d4e8473e441ce5748cfa44a23648814f2656f429b85440157988c88de776c6ac008dc38bf09cbb746c230a46c69fe

          • \Users\Admin\AppData\Local\Temp\nsj31DD.tmp\nsExec.dll

            Filesize

            6KB

            MD5

            acc2b699edfea5bf5aae45aba3a41e96

            SHA1

            d2accf4d494e43ceb2cff69abe4dd17147d29cc2

            SHA256

            168a974eaa3f588d759db3f47c1a9fdc3494ba1fa1a73a84e5e3b2a4d58abd7e

            SHA512

            e29ea10ada98c71a18273b04f44f385b120d4e8473e441ce5748cfa44a23648814f2656f429b85440157988c88de776c6ac008dc38bf09cbb746c230a46c69fe

          • \Users\Admin\AppData\Local\Temp\nsj31DD.tmp\nsExec.dll

            Filesize

            6KB

            MD5

            acc2b699edfea5bf5aae45aba3a41e96

            SHA1

            d2accf4d494e43ceb2cff69abe4dd17147d29cc2

            SHA256

            168a974eaa3f588d759db3f47c1a9fdc3494ba1fa1a73a84e5e3b2a4d58abd7e

            SHA512

            e29ea10ada98c71a18273b04f44f385b120d4e8473e441ce5748cfa44a23648814f2656f429b85440157988c88de776c6ac008dc38bf09cbb746c230a46c69fe

          • \Windows\SysWOW64\hfnapi.dll

            Filesize

            106KB

            MD5

            b2c8ac54ffd2fcbfc1bdff5fafe971db

            SHA1

            ef6120a297c1c86b5a9299b6bf8704187e6d7267

            SHA256

            490c63f451489504040a16c176717013e4289a8d22e089e9f9af690f6d6db6d5

            SHA512

            c3f1df0b6f04b289e43e16f5ac526824391260ce0aa9baabe9cfb9ea463dfaad408a2918e277584624f2a7971e97d88c1758523de0d36588fd1f36b6d3682d06

          • \Windows\SysWOW64\hfnapi.dll

            Filesize

            106KB

            MD5

            b2c8ac54ffd2fcbfc1bdff5fafe971db

            SHA1

            ef6120a297c1c86b5a9299b6bf8704187e6d7267

            SHA256

            490c63f451489504040a16c176717013e4289a8d22e089e9f9af690f6d6db6d5

            SHA512

            c3f1df0b6f04b289e43e16f5ac526824391260ce0aa9baabe9cfb9ea463dfaad408a2918e277584624f2a7971e97d88c1758523de0d36588fd1f36b6d3682d06

          • \Windows\SysWOW64\hfnapi.dll

            Filesize

            106KB

            MD5

            b2c8ac54ffd2fcbfc1bdff5fafe971db

            SHA1

            ef6120a297c1c86b5a9299b6bf8704187e6d7267

            SHA256

            490c63f451489504040a16c176717013e4289a8d22e089e9f9af690f6d6db6d5

            SHA512

            c3f1df0b6f04b289e43e16f5ac526824391260ce0aa9baabe9cfb9ea463dfaad408a2918e277584624f2a7971e97d88c1758523de0d36588fd1f36b6d3682d06

          • \Windows\SysWOW64\hfpapi.dll

            Filesize

            244KB

            MD5

            307c0bbbaa029c1c66afd4e97ccf93b4

            SHA1

            cbbcb0f4b4f8277ee6d47e8b35389149ac1d0865

            SHA256

            9bb44432fdb564bf231f32132d624257505c87b2cf679bccdb96b2a0a86a7d84

            SHA512

            c630b8b5fdee1fcf5d6d773670a7b20a137c9d1a9ab34a24e856dbdb2200b0138c6eab43e6712389be11d5317ba821265987800fd4aef41647f3fa16d01547aa

          • \Windows\SysWOW64\hfpapi.dll

            Filesize

            244KB

            MD5

            307c0bbbaa029c1c66afd4e97ccf93b4

            SHA1

            cbbcb0f4b4f8277ee6d47e8b35389149ac1d0865

            SHA256

            9bb44432fdb564bf231f32132d624257505c87b2cf679bccdb96b2a0a86a7d84

            SHA512

            c630b8b5fdee1fcf5d6d773670a7b20a137c9d1a9ab34a24e856dbdb2200b0138c6eab43e6712389be11d5317ba821265987800fd4aef41647f3fa16d01547aa

          • \Windows\SysWOW64\installd.exe

            Filesize

            108KB

            MD5

            62f98031a58b61213568e29e8ee23aed

            SHA1

            f2bc7a7270d9a7fde0fdc8786a4775a2bb7dc7e5

            SHA256

            35f23311c0d5d27d2e94722cc03e184d3be9d714c3defd3dce70447bd8c62050

            SHA512

            b9b421becd1e81b56bbfa7c96624dc5d4dbd28c1c8d7cca05ba9d069eba7aa816d8f59d2eb2a3b2789802c2ba638d127b6a5aedd673d889d3f95f9d99a837dae

          • \Windows\SysWOW64\nethtsrv.exe

            Filesize

            176KB

            MD5

            b1d3b3120bde818371659d8c48000e4a

            SHA1

            95230ff170083f946c1ffbd63d41070221e2abb5

            SHA256

            8a4fba8f70c1153da082d38828f5f6de820f21a44f9b6068dc9957ac40480a4e

            SHA512

            9ead5a36b8c7353a9291b4ebae65906b201c13eb51e063b22e816ce262d5bf18be0ddeb0ead55f8234e9e099f3bd2ffa2b01697b8e1d132c4303625d327ca37d

          • \Windows\SysWOW64\netupdsrv.exe

            Filesize

            159KB

            MD5

            eb302eedf104eedc91f33173b6f0b5c1

            SHA1

            1ced1df11ca5b5981b88d9009537106190ee46b6

            SHA256

            73b3bdd797235ce93e78ac2d83c5661f7092ed62376014f39b7fbdc2874ecfb1

            SHA512

            b151a4aee88d0e9647b94e1a8097c58a94f91727fbd5066a8ddd3230ac59d83c90a674e64b86d8892d239e0a639b1e219689363b34022d809ae4a0a755f56c1b

          • memory/984-54-0x0000000075ED1000-0x0000000075ED3000-memory.dmp

            Filesize

            8KB

          • memory/984-58-0x0000000000360000-0x00000000007BE000-memory.dmp

            Filesize

            4.4MB

          • memory/984-90-0x0000000000360000-0x00000000007BE000-memory.dmp

            Filesize

            4.4MB