Analysis

  • max time kernel
    145s
  • max time network
    162s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20220812-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20220812-enlocale:en-usos:windows10-2004-x64system
  • submitted
    25/11/2022, 21:40

General

  • Target

    304d8b5c18398655cf5a294bd8731a46b5811935cc36eb7612766bc9a1ff5822.exe

  • Size

    339KB

  • MD5

    a5ae65d105404cc75ba635d3391dd6a1

  • SHA1

    ba0ada3252209ef8ecec61152e7a99fbdda1b0ea

  • SHA256

    304d8b5c18398655cf5a294bd8731a46b5811935cc36eb7612766bc9a1ff5822

  • SHA512

    ae39404eefb58416b246a6bd0ff44e6c37c41816feb943239428d25640f9e19613cc4aef4a66164dac5ee2173139f7edbce58ec636a625e7d4b15a3a05095d5a

  • SSDEEP

    6144:IDSoIWhnCfBkFut2MZgd6zWvAsNHwcI9sreuhJ5WQGkpwyJPTu4RV:uhLwBqdjvAsdwc1e2r7R9Jq4

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\304d8b5c18398655cf5a294bd8731a46b5811935cc36eb7612766bc9a1ff5822.exe
    "C:\Users\Admin\AppData\Local\Temp\304d8b5c18398655cf5a294bd8731a46b5811935cc36eb7612766bc9a1ff5822.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:4192
    • C:\Windows\SysWOW64\net.exe
      net stop nethttpservice
      2⤵
      • Suspicious use of WriteProcessMemory
      PID:2732
      • C:\Windows\SysWOW64\net1.exe
        C:\Windows\system32\net1 stop nethttpservice
        3⤵
          PID:2176
      • C:\Windows\SysWOW64\net.exe
        net stop serviceupdater
        2⤵
        • Suspicious use of WriteProcessMemory
        PID:4848
        • C:\Windows\SysWOW64\net1.exe
          C:\Windows\system32\net1 stop serviceupdater
          3⤵
            PID:4972
        • C:\Windows\SysWOW64\installd.exe
          "C:\Windows\system32\installd.exe" nethfdrv
          2⤵
          • Executes dropped EXE
          • Loads dropped DLL
          PID:4948
        • C:\Windows\SysWOW64\nethtsrv.exe
          "C:\Windows\system32\nethtsrv.exe" -nfdi
          2⤵
          • Executes dropped EXE
          • Loads dropped DLL
          PID:4836
        • C:\Windows\SysWOW64\netupdsrv.exe
          "C:\Windows\system32\netupdsrv.exe" -nfdi
          2⤵
          • Executes dropped EXE
          PID:5112
        • C:\Windows\SysWOW64\net.exe
          net start nethttpservice
          2⤵
          • Suspicious use of WriteProcessMemory
          PID:1464
          • C:\Windows\SysWOW64\net1.exe
            C:\Windows\system32\net1 start nethttpservice
            3⤵
              PID:4240
          • C:\Windows\SysWOW64\net.exe
            net start serviceupdater
            2⤵
            • Suspicious use of WriteProcessMemory
            PID:2720
            • C:\Windows\SysWOW64\net1.exe
              C:\Windows\system32\net1 start serviceupdater
              3⤵
                PID:32
          • 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:4332
          • C:\Windows\SysWOW64\netupdsrv.exe
            C:\Windows\SysWOW64\netupdsrv.exe
            1⤵
            • Executes dropped EXE
            PID:2128

          Network

                MITRE ATT&CK Enterprise v6

                Replay Monitor

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                Downloads

                • C:\Users\Admin\AppData\Local\Temp\nse92F0.tmp\System.dll

                  Filesize

                  11KB

                  MD5

                  960a5c48e25cf2bca332e74e11d825c9

                  SHA1

                  da35c6816ace5daf4c6c1d57b93b09a82ecdc876

                  SHA256

                  484f8e9f194ed9016274ef3672b2c52ed5f574fb71d3884edf3c222b758a75a2

                  SHA512

                  cc450179e2d0d56aee2ccf8163d3882978c4e9c1aa3d3a95875fe9ba9831e07ddfd377111dc67f801fa53b6f468a418f086f1de7c71e0a5b634e1ae2a67cd3da

                • C:\Users\Admin\AppData\Local\Temp\nse92F0.tmp\nsExec.dll

                  Filesize

                  6KB

                  MD5

                  51e63a9c5d6d230ef1c421b2eccd45dc

                  SHA1

                  c499cdad5c613d71ed3f7e93360f1bbc5748c45d

                  SHA256

                  cd8496a3802378391ec425dec424a14f5d30e242f192ec4eb022d767f9a2480f

                  SHA512

                  c23d713c3c834b3397c2a199490aed28f28d21f5781205c24df5e1e32365985c8a55be58f06979df09222740ffa51f4da764ebc3d912cd0c9d56ab6a33cab522

                • C:\Users\Admin\AppData\Local\Temp\nse92F0.tmp\nsExec.dll

                  Filesize

                  6KB

                  MD5

                  51e63a9c5d6d230ef1c421b2eccd45dc

                  SHA1

                  c499cdad5c613d71ed3f7e93360f1bbc5748c45d

                  SHA256

                  cd8496a3802378391ec425dec424a14f5d30e242f192ec4eb022d767f9a2480f

                  SHA512

                  c23d713c3c834b3397c2a199490aed28f28d21f5781205c24df5e1e32365985c8a55be58f06979df09222740ffa51f4da764ebc3d912cd0c9d56ab6a33cab522

                • C:\Users\Admin\AppData\Local\Temp\nse92F0.tmp\nsExec.dll

                  Filesize

                  6KB

                  MD5

                  51e63a9c5d6d230ef1c421b2eccd45dc

                  SHA1

                  c499cdad5c613d71ed3f7e93360f1bbc5748c45d

                  SHA256

                  cd8496a3802378391ec425dec424a14f5d30e242f192ec4eb022d767f9a2480f

                  SHA512

                  c23d713c3c834b3397c2a199490aed28f28d21f5781205c24df5e1e32365985c8a55be58f06979df09222740ffa51f4da764ebc3d912cd0c9d56ab6a33cab522

                • C:\Users\Admin\AppData\Local\Temp\nse92F0.tmp\nsExec.dll

                  Filesize

                  6KB

                  MD5

                  51e63a9c5d6d230ef1c421b2eccd45dc

                  SHA1

                  c499cdad5c613d71ed3f7e93360f1bbc5748c45d

                  SHA256

                  cd8496a3802378391ec425dec424a14f5d30e242f192ec4eb022d767f9a2480f

                  SHA512

                  c23d713c3c834b3397c2a199490aed28f28d21f5781205c24df5e1e32365985c8a55be58f06979df09222740ffa51f4da764ebc3d912cd0c9d56ab6a33cab522

                • C:\Users\Admin\AppData\Local\Temp\nse92F0.tmp\nsExec.dll

                  Filesize

                  6KB

                  MD5

                  51e63a9c5d6d230ef1c421b2eccd45dc

                  SHA1

                  c499cdad5c613d71ed3f7e93360f1bbc5748c45d

                  SHA256

                  cd8496a3802378391ec425dec424a14f5d30e242f192ec4eb022d767f9a2480f

                  SHA512

                  c23d713c3c834b3397c2a199490aed28f28d21f5781205c24df5e1e32365985c8a55be58f06979df09222740ffa51f4da764ebc3d912cd0c9d56ab6a33cab522

                • C:\Users\Admin\AppData\Local\Temp\nse92F0.tmp\nsExec.dll

                  Filesize

                  6KB

                  MD5

                  51e63a9c5d6d230ef1c421b2eccd45dc

                  SHA1

                  c499cdad5c613d71ed3f7e93360f1bbc5748c45d

                  SHA256

                  cd8496a3802378391ec425dec424a14f5d30e242f192ec4eb022d767f9a2480f

                  SHA512

                  c23d713c3c834b3397c2a199490aed28f28d21f5781205c24df5e1e32365985c8a55be58f06979df09222740ffa51f4da764ebc3d912cd0c9d56ab6a33cab522

                • C:\Users\Admin\AppData\Local\Temp\nse92F0.tmp\nsExec.dll

                  Filesize

                  6KB

                  MD5

                  51e63a9c5d6d230ef1c421b2eccd45dc

                  SHA1

                  c499cdad5c613d71ed3f7e93360f1bbc5748c45d

                  SHA256

                  cd8496a3802378391ec425dec424a14f5d30e242f192ec4eb022d767f9a2480f

                  SHA512

                  c23d713c3c834b3397c2a199490aed28f28d21f5781205c24df5e1e32365985c8a55be58f06979df09222740ffa51f4da764ebc3d912cd0c9d56ab6a33cab522

                • C:\Users\Admin\AppData\Local\Temp\nse92F0.tmp\nsExec.dll

                  Filesize

                  6KB

                  MD5

                  51e63a9c5d6d230ef1c421b2eccd45dc

                  SHA1

                  c499cdad5c613d71ed3f7e93360f1bbc5748c45d

                  SHA256

                  cd8496a3802378391ec425dec424a14f5d30e242f192ec4eb022d767f9a2480f

                  SHA512

                  c23d713c3c834b3397c2a199490aed28f28d21f5781205c24df5e1e32365985c8a55be58f06979df09222740ffa51f4da764ebc3d912cd0c9d56ab6a33cab522

                • C:\Windows\SysWOW64\hfnapi.dll

                  Filesize

                  106KB

                  MD5

                  ec69f0f505c060f6eea95bd9987db4ec

                  SHA1

                  3ec41830e445c7947ef13ecceb0be26bd4418a87

                  SHA256

                  ffadaa0fd611eaf48e0239ae660bf1e6a70985d8e1f91585a754e1a87804cb87

                  SHA512

                  11a0d947e62c21bf977d23e340865d9fc27403c33b4e9b14f27716dab275c3cae207b8e13110160928c6c32e6c78d5c8f2507fda08e3cb4f4320b2be5d63af5d

                • C:\Windows\SysWOW64\hfnapi.dll

                  Filesize

                  106KB

                  MD5

                  ec69f0f505c060f6eea95bd9987db4ec

                  SHA1

                  3ec41830e445c7947ef13ecceb0be26bd4418a87

                  SHA256

                  ffadaa0fd611eaf48e0239ae660bf1e6a70985d8e1f91585a754e1a87804cb87

                  SHA512

                  11a0d947e62c21bf977d23e340865d9fc27403c33b4e9b14f27716dab275c3cae207b8e13110160928c6c32e6c78d5c8f2507fda08e3cb4f4320b2be5d63af5d

                • C:\Windows\SysWOW64\hfnapi.dll

                  Filesize

                  106KB

                  MD5

                  ec69f0f505c060f6eea95bd9987db4ec

                  SHA1

                  3ec41830e445c7947ef13ecceb0be26bd4418a87

                  SHA256

                  ffadaa0fd611eaf48e0239ae660bf1e6a70985d8e1f91585a754e1a87804cb87

                  SHA512

                  11a0d947e62c21bf977d23e340865d9fc27403c33b4e9b14f27716dab275c3cae207b8e13110160928c6c32e6c78d5c8f2507fda08e3cb4f4320b2be5d63af5d

                • C:\Windows\SysWOW64\hfnapi.dll

                  Filesize

                  106KB

                  MD5

                  ec69f0f505c060f6eea95bd9987db4ec

                  SHA1

                  3ec41830e445c7947ef13ecceb0be26bd4418a87

                  SHA256

                  ffadaa0fd611eaf48e0239ae660bf1e6a70985d8e1f91585a754e1a87804cb87

                  SHA512

                  11a0d947e62c21bf977d23e340865d9fc27403c33b4e9b14f27716dab275c3cae207b8e13110160928c6c32e6c78d5c8f2507fda08e3cb4f4320b2be5d63af5d

                • C:\Windows\SysWOW64\hfpapi.dll

                  Filesize

                  241KB

                  MD5

                  f1aca831922989af5d4ccde0eb01aed4

                  SHA1

                  6c3859d212c1db33e99caaffeb6e6e25fa97f030

                  SHA256

                  62afc2372b27cd1205ce59fe42442eb300af614bfe44467f10b67bf3b450fc0b

                  SHA512

                  965f67b3fbbf7076b7b1eaa9a857a7d19af2ab2671de98cfd9f4dbeb8d5c5ab5bc00d6d91e2fb1953dd6690f9a42b8fa3c6eb45c0ac6616daa3f6a61403d3ef3

                • C:\Windows\SysWOW64\hfpapi.dll

                  Filesize

                  241KB

                  MD5

                  f1aca831922989af5d4ccde0eb01aed4

                  SHA1

                  6c3859d212c1db33e99caaffeb6e6e25fa97f030

                  SHA256

                  62afc2372b27cd1205ce59fe42442eb300af614bfe44467f10b67bf3b450fc0b

                  SHA512

                  965f67b3fbbf7076b7b1eaa9a857a7d19af2ab2671de98cfd9f4dbeb8d5c5ab5bc00d6d91e2fb1953dd6690f9a42b8fa3c6eb45c0ac6616daa3f6a61403d3ef3

                • C:\Windows\SysWOW64\hfpapi.dll

                  Filesize

                  241KB

                  MD5

                  f1aca831922989af5d4ccde0eb01aed4

                  SHA1

                  6c3859d212c1db33e99caaffeb6e6e25fa97f030

                  SHA256

                  62afc2372b27cd1205ce59fe42442eb300af614bfe44467f10b67bf3b450fc0b

                  SHA512

                  965f67b3fbbf7076b7b1eaa9a857a7d19af2ab2671de98cfd9f4dbeb8d5c5ab5bc00d6d91e2fb1953dd6690f9a42b8fa3c6eb45c0ac6616daa3f6a61403d3ef3

                • C:\Windows\SysWOW64\installd.exe

                  Filesize

                  106KB

                  MD5

                  9852d24abe4d9c13d37186b4c7840e76

                  SHA1

                  b63ac63db034a0ba9f6b0946b5b776a0c14ee192

                  SHA256

                  a27d9e1bc2d2942010816199be151f2df9c06548d5d54da1e249fd377f2a9184

                  SHA512

                  d5ccba7776a566b04b720e388eb3e9c21119e1279ad98ec4219f57501c6387752dc090662ddb971fe630537ac80059820d42adab4ca7628aa1ff8763cb663b22

                • C:\Windows\SysWOW64\installd.exe

                  Filesize

                  106KB

                  MD5

                  9852d24abe4d9c13d37186b4c7840e76

                  SHA1

                  b63ac63db034a0ba9f6b0946b5b776a0c14ee192

                  SHA256

                  a27d9e1bc2d2942010816199be151f2df9c06548d5d54da1e249fd377f2a9184

                  SHA512

                  d5ccba7776a566b04b720e388eb3e9c21119e1279ad98ec4219f57501c6387752dc090662ddb971fe630537ac80059820d42adab4ca7628aa1ff8763cb663b22

                • C:\Windows\SysWOW64\nethtsrv.exe

                  Filesize

                  176KB

                  MD5

                  a72bc4fee7f648ebfea00562e5d1fbbc

                  SHA1

                  e384be14ab6d36a7499db01c9e9de466fa950b37

                  SHA256

                  746a7f7a501aaa1e8fe31a7e527a45e92b8c0a41838d213b5f0eaf46eea57190

                  SHA512

                  75664379ba1e9242e88a3bca09ed6b7b3bfc6008bf03c866ef1246385f50e9c0ed8c38a09b914b88cef679f2ac51e687457dab446c7a56804adcbe5cb27a1292

                • C:\Windows\SysWOW64\nethtsrv.exe

                  Filesize

                  176KB

                  MD5

                  a72bc4fee7f648ebfea00562e5d1fbbc

                  SHA1

                  e384be14ab6d36a7499db01c9e9de466fa950b37

                  SHA256

                  746a7f7a501aaa1e8fe31a7e527a45e92b8c0a41838d213b5f0eaf46eea57190

                  SHA512

                  75664379ba1e9242e88a3bca09ed6b7b3bfc6008bf03c866ef1246385f50e9c0ed8c38a09b914b88cef679f2ac51e687457dab446c7a56804adcbe5cb27a1292

                • C:\Windows\SysWOW64\nethtsrv.exe

                  Filesize

                  176KB

                  MD5

                  a72bc4fee7f648ebfea00562e5d1fbbc

                  SHA1

                  e384be14ab6d36a7499db01c9e9de466fa950b37

                  SHA256

                  746a7f7a501aaa1e8fe31a7e527a45e92b8c0a41838d213b5f0eaf46eea57190

                  SHA512

                  75664379ba1e9242e88a3bca09ed6b7b3bfc6008bf03c866ef1246385f50e9c0ed8c38a09b914b88cef679f2ac51e687457dab446c7a56804adcbe5cb27a1292

                • C:\Windows\SysWOW64\netupdsrv.exe

                  Filesize

                  156KB

                  MD5

                  8e1e1f97e4ee927d2613aff7ed6ec5f6

                  SHA1

                  3e5b2e81ad590b103c8f2fa56339cf06bcbc44bf

                  SHA256

                  79cc40364e4b17ac36be096b943f38471c823b672a66da2279fff21e59261f6f

                  SHA512

                  df19ac6593de3b98d35da848ee2d6fcc2d1792eb852c071362afe79da19f28a32fc023394caa76cacf9cbe391b065c56b0aecd27017182c701e8d3644fbf6efb

                • C:\Windows\SysWOW64\netupdsrv.exe

                  Filesize

                  156KB

                  MD5

                  8e1e1f97e4ee927d2613aff7ed6ec5f6

                  SHA1

                  3e5b2e81ad590b103c8f2fa56339cf06bcbc44bf

                  SHA256

                  79cc40364e4b17ac36be096b943f38471c823b672a66da2279fff21e59261f6f

                  SHA512

                  df19ac6593de3b98d35da848ee2d6fcc2d1792eb852c071362afe79da19f28a32fc023394caa76cacf9cbe391b065c56b0aecd27017182c701e8d3644fbf6efb

                • C:\Windows\SysWOW64\netupdsrv.exe

                  Filesize

                  156KB

                  MD5

                  8e1e1f97e4ee927d2613aff7ed6ec5f6

                  SHA1

                  3e5b2e81ad590b103c8f2fa56339cf06bcbc44bf

                  SHA256

                  79cc40364e4b17ac36be096b943f38471c823b672a66da2279fff21e59261f6f

                  SHA512

                  df19ac6593de3b98d35da848ee2d6fcc2d1792eb852c071362afe79da19f28a32fc023394caa76cacf9cbe391b065c56b0aecd27017182c701e8d3644fbf6efb