Analysis

  • max time kernel
    150s
  • max time network
    148s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20221111-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20221111-enlocale:en-usos:windows10-2004-x64system
  • submitted
    21/11/2022, 23:49

General

  • Target

    ff6b4295629cd50bc3a9ccf5cbdb9bc00f28ef1d80f288a6ae2694f6f31fcc68.exe

  • Size

    601KB

  • MD5

    f4910d24dff827341eba3e0875fe59ba

  • SHA1

    7e16b37698385d3a97d21c0ae5c49ba34d8b17ca

  • SHA256

    ff6b4295629cd50bc3a9ccf5cbdb9bc00f28ef1d80f288a6ae2694f6f31fcc68

  • SHA512

    d03ca9b6c34cac7fad5675ff894af3ec7bb60918984bec4b60b70cf79d0d103cf19a1299d042240e9279bbeeb173557871d8a74c730f36093dcefbbdd77c59e5

  • SSDEEP

    12288:nIny5DYT3G2C5XuWlR7QqP9B3kWzyqF+3lk7H84o1z6Vq46TF2dx370:vUT22CluWlR7QS9B3LzwC7HvO+BCF2d6

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\ff6b4295629cd50bc3a9ccf5cbdb9bc00f28ef1d80f288a6ae2694f6f31fcc68.exe
    "C:\Users\Admin\AppData\Local\Temp\ff6b4295629cd50bc3a9ccf5cbdb9bc00f28ef1d80f288a6ae2694f6f31fcc68.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:3436
    • C:\Windows\SysWOW64\net.exe
      net stop nethttpservice
      2⤵
      • Suspicious use of WriteProcessMemory
      PID:1716
      • C:\Windows\SysWOW64\net1.exe
        C:\Windows\system32\net1 stop nethttpservice
        3⤵
          PID:3228
      • C:\Windows\SysWOW64\net.exe
        net stop serviceupdater
        2⤵
        • Suspicious use of WriteProcessMemory
        PID:2592
        • C:\Windows\SysWOW64\net1.exe
          C:\Windows\system32\net1 stop serviceupdater
          3⤵
            PID:3196
        • C:\Windows\SysWOW64\installd.exe
          "C:\Windows\system32\installd.exe" nethfdrv
          2⤵
          • Executes dropped EXE
          • Loads dropped DLL
          PID:260
        • C:\Windows\SysWOW64\nethtsrv.exe
          "C:\Windows\system32\nethtsrv.exe" -nfdi
          2⤵
          • Executes dropped EXE
          • Loads dropped DLL
          PID:5024
        • C:\Windows\SysWOW64\netupdsrv.exe
          "C:\Windows\system32\netupdsrv.exe" -nfdi
          2⤵
          • Executes dropped EXE
          PID:2916
        • C:\Windows\SysWOW64\net.exe
          net start nethttpservice
          2⤵
          • Suspicious use of WriteProcessMemory
          PID:1912
          • C:\Windows\SysWOW64\net1.exe
            C:\Windows\system32\net1 start nethttpservice
            3⤵
              PID:980
          • C:\Windows\SysWOW64\net.exe
            net start serviceupdater
            2⤵
            • Suspicious use of WriteProcessMemory
            PID:2068
            • C:\Windows\SysWOW64\net1.exe
              C:\Windows\system32\net1 start serviceupdater
              3⤵
                PID:4972
          • 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:1116
          • C:\Windows\SysWOW64\netupdsrv.exe
            C:\Windows\SysWOW64\netupdsrv.exe
            1⤵
            • Executes dropped EXE
            PID:3164

          Network

          MITRE ATT&CK Enterprise v6

          Replay Monitor

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          Downloads

          • C:\Users\Admin\AppData\Local\Temp\nsz87A5.tmp\System.dll

            Filesize

            11KB

            MD5

            c17103ae9072a06da581dec998343fc1

            SHA1

            b72148c6bdfaada8b8c3f950e610ee7cf1da1f8d

            SHA256

            dc58d8ad81cacb0c1ed72e33bff8f23ea40b5252b5bb55d393a0903e6819ae2f

            SHA512

            d32a71aaef18e993f28096d536e41c4d016850721b31171513ce28bbd805a54fd290b7c3e9d935f72e676a1acfb4f0dcc89d95040a0dd29f2b6975855c18986f

          • C:\Users\Admin\AppData\Local\Temp\nsz87A5.tmp\nsExec.dll

            Filesize

            6KB

            MD5

            acc2b699edfea5bf5aae45aba3a41e96

            SHA1

            d2accf4d494e43ceb2cff69abe4dd17147d29cc2

            SHA256

            168a974eaa3f588d759db3f47c1a9fdc3494ba1fa1a73a84e5e3b2a4d58abd7e

            SHA512

            e29ea10ada98c71a18273b04f44f385b120d4e8473e441ce5748cfa44a23648814f2656f429b85440157988c88de776c6ac008dc38bf09cbb746c230a46c69fe

          • C:\Users\Admin\AppData\Local\Temp\nsz87A5.tmp\nsExec.dll

            Filesize

            6KB

            MD5

            acc2b699edfea5bf5aae45aba3a41e96

            SHA1

            d2accf4d494e43ceb2cff69abe4dd17147d29cc2

            SHA256

            168a974eaa3f588d759db3f47c1a9fdc3494ba1fa1a73a84e5e3b2a4d58abd7e

            SHA512

            e29ea10ada98c71a18273b04f44f385b120d4e8473e441ce5748cfa44a23648814f2656f429b85440157988c88de776c6ac008dc38bf09cbb746c230a46c69fe

          • C:\Users\Admin\AppData\Local\Temp\nsz87A5.tmp\nsExec.dll

            Filesize

            6KB

            MD5

            acc2b699edfea5bf5aae45aba3a41e96

            SHA1

            d2accf4d494e43ceb2cff69abe4dd17147d29cc2

            SHA256

            168a974eaa3f588d759db3f47c1a9fdc3494ba1fa1a73a84e5e3b2a4d58abd7e

            SHA512

            e29ea10ada98c71a18273b04f44f385b120d4e8473e441ce5748cfa44a23648814f2656f429b85440157988c88de776c6ac008dc38bf09cbb746c230a46c69fe

          • C:\Users\Admin\AppData\Local\Temp\nsz87A5.tmp\nsExec.dll

            Filesize

            6KB

            MD5

            acc2b699edfea5bf5aae45aba3a41e96

            SHA1

            d2accf4d494e43ceb2cff69abe4dd17147d29cc2

            SHA256

            168a974eaa3f588d759db3f47c1a9fdc3494ba1fa1a73a84e5e3b2a4d58abd7e

            SHA512

            e29ea10ada98c71a18273b04f44f385b120d4e8473e441ce5748cfa44a23648814f2656f429b85440157988c88de776c6ac008dc38bf09cbb746c230a46c69fe

          • C:\Users\Admin\AppData\Local\Temp\nsz87A5.tmp\nsExec.dll

            Filesize

            6KB

            MD5

            acc2b699edfea5bf5aae45aba3a41e96

            SHA1

            d2accf4d494e43ceb2cff69abe4dd17147d29cc2

            SHA256

            168a974eaa3f588d759db3f47c1a9fdc3494ba1fa1a73a84e5e3b2a4d58abd7e

            SHA512

            e29ea10ada98c71a18273b04f44f385b120d4e8473e441ce5748cfa44a23648814f2656f429b85440157988c88de776c6ac008dc38bf09cbb746c230a46c69fe

          • C:\Users\Admin\AppData\Local\Temp\nsz87A5.tmp\nsExec.dll

            Filesize

            6KB

            MD5

            acc2b699edfea5bf5aae45aba3a41e96

            SHA1

            d2accf4d494e43ceb2cff69abe4dd17147d29cc2

            SHA256

            168a974eaa3f588d759db3f47c1a9fdc3494ba1fa1a73a84e5e3b2a4d58abd7e

            SHA512

            e29ea10ada98c71a18273b04f44f385b120d4e8473e441ce5748cfa44a23648814f2656f429b85440157988c88de776c6ac008dc38bf09cbb746c230a46c69fe

          • C:\Users\Admin\AppData\Local\Temp\nsz87A5.tmp\nsExec.dll

            Filesize

            6KB

            MD5

            acc2b699edfea5bf5aae45aba3a41e96

            SHA1

            d2accf4d494e43ceb2cff69abe4dd17147d29cc2

            SHA256

            168a974eaa3f588d759db3f47c1a9fdc3494ba1fa1a73a84e5e3b2a4d58abd7e

            SHA512

            e29ea10ada98c71a18273b04f44f385b120d4e8473e441ce5748cfa44a23648814f2656f429b85440157988c88de776c6ac008dc38bf09cbb746c230a46c69fe

          • C:\Users\Admin\AppData\Local\Temp\nsz87A5.tmp\nsExec.dll

            Filesize

            6KB

            MD5

            acc2b699edfea5bf5aae45aba3a41e96

            SHA1

            d2accf4d494e43ceb2cff69abe4dd17147d29cc2

            SHA256

            168a974eaa3f588d759db3f47c1a9fdc3494ba1fa1a73a84e5e3b2a4d58abd7e

            SHA512

            e29ea10ada98c71a18273b04f44f385b120d4e8473e441ce5748cfa44a23648814f2656f429b85440157988c88de776c6ac008dc38bf09cbb746c230a46c69fe

          • C:\Windows\SysWOW64\hfnapi.dll

            Filesize

            106KB

            MD5

            b0855bb81361a44e1c4361f6b46e7c62

            SHA1

            4d9e70e40cb1c8a471c7a46804a7888414c1c5da

            SHA256

            276c010f08d380e4aa8bd6545472467a3f8432e63bcf231e67500861cf1b6560

            SHA512

            7e1093aca8d51f0d15acf217d91a698b842b5951f31442444a9d5b5e5307a8106d774f0d99246db13c8435b2fc1ab6b1e3dbc12daa98491798a40de5e1ffdccd

          • C:\Windows\SysWOW64\hfnapi.dll

            Filesize

            106KB

            MD5

            b0855bb81361a44e1c4361f6b46e7c62

            SHA1

            4d9e70e40cb1c8a471c7a46804a7888414c1c5da

            SHA256

            276c010f08d380e4aa8bd6545472467a3f8432e63bcf231e67500861cf1b6560

            SHA512

            7e1093aca8d51f0d15acf217d91a698b842b5951f31442444a9d5b5e5307a8106d774f0d99246db13c8435b2fc1ab6b1e3dbc12daa98491798a40de5e1ffdccd

          • C:\Windows\SysWOW64\hfnapi.dll

            Filesize

            106KB

            MD5

            b0855bb81361a44e1c4361f6b46e7c62

            SHA1

            4d9e70e40cb1c8a471c7a46804a7888414c1c5da

            SHA256

            276c010f08d380e4aa8bd6545472467a3f8432e63bcf231e67500861cf1b6560

            SHA512

            7e1093aca8d51f0d15acf217d91a698b842b5951f31442444a9d5b5e5307a8106d774f0d99246db13c8435b2fc1ab6b1e3dbc12daa98491798a40de5e1ffdccd

          • C:\Windows\SysWOW64\hfnapi.dll

            Filesize

            106KB

            MD5

            b0855bb81361a44e1c4361f6b46e7c62

            SHA1

            4d9e70e40cb1c8a471c7a46804a7888414c1c5da

            SHA256

            276c010f08d380e4aa8bd6545472467a3f8432e63bcf231e67500861cf1b6560

            SHA512

            7e1093aca8d51f0d15acf217d91a698b842b5951f31442444a9d5b5e5307a8106d774f0d99246db13c8435b2fc1ab6b1e3dbc12daa98491798a40de5e1ffdccd

          • C:\Windows\SysWOW64\hfpapi.dll

            Filesize

            241KB

            MD5

            c14bf6131407917726302a0172f8ce8d

            SHA1

            d284c8cd5c6093b71b3c3bd2cf7b9587da42069d

            SHA256

            712495ff70d3181b1fc0a851f9cef54256ba52282e20ced9196e3246136ce61a

            SHA512

            9f0deafd6ec5991c49e4f2229dd873422ea1c158861dae4e972d31b0a1005fbb6f140393f3ad506f1d63718a5947f6417f0c1ca5acaf61f6cbc0edcaf1e55d9e

          • C:\Windows\SysWOW64\hfpapi.dll

            Filesize

            241KB

            MD5

            c14bf6131407917726302a0172f8ce8d

            SHA1

            d284c8cd5c6093b71b3c3bd2cf7b9587da42069d

            SHA256

            712495ff70d3181b1fc0a851f9cef54256ba52282e20ced9196e3246136ce61a

            SHA512

            9f0deafd6ec5991c49e4f2229dd873422ea1c158861dae4e972d31b0a1005fbb6f140393f3ad506f1d63718a5947f6417f0c1ca5acaf61f6cbc0edcaf1e55d9e

          • C:\Windows\SysWOW64\hfpapi.dll

            Filesize

            241KB

            MD5

            c14bf6131407917726302a0172f8ce8d

            SHA1

            d284c8cd5c6093b71b3c3bd2cf7b9587da42069d

            SHA256

            712495ff70d3181b1fc0a851f9cef54256ba52282e20ced9196e3246136ce61a

            SHA512

            9f0deafd6ec5991c49e4f2229dd873422ea1c158861dae4e972d31b0a1005fbb6f140393f3ad506f1d63718a5947f6417f0c1ca5acaf61f6cbc0edcaf1e55d9e

          • C:\Windows\SysWOW64\installd.exe

            Filesize

            108KB

            MD5

            ba1f55239ad943062eff1840a87109ed

            SHA1

            10d2f27c6d054fe958e21d9a9eec37f831a74ab9

            SHA256

            75b84e64bf1558bab67a66b36830cfc2eb122eec4d55691d601832d706f6b1f7

            SHA512

            fdb7c0dc6f67bced54bd0b5867e0c7b64a754f7bb59249ed849cca2937432bc3349e934506745fed70ce0b0bbc02be87318fcbb377411612df915637f5f07c1c

          • C:\Windows\SysWOW64\installd.exe

            Filesize

            108KB

            MD5

            ba1f55239ad943062eff1840a87109ed

            SHA1

            10d2f27c6d054fe958e21d9a9eec37f831a74ab9

            SHA256

            75b84e64bf1558bab67a66b36830cfc2eb122eec4d55691d601832d706f6b1f7

            SHA512

            fdb7c0dc6f67bced54bd0b5867e0c7b64a754f7bb59249ed849cca2937432bc3349e934506745fed70ce0b0bbc02be87318fcbb377411612df915637f5f07c1c

          • C:\Windows\SysWOW64\nethtsrv.exe

            Filesize

            176KB

            MD5

            392f7f2e5ef135a1ccfd7f787e3b04ce

            SHA1

            d484574828a4d430c962dc53cb17b4678f2b8c14

            SHA256

            03468330152d82632ac9d640acc79253cb80dff5c6c8fb3ae9545b6aa83329c4

            SHA512

            6397433c3a1a64bdd07d3487f4da14d9f06b08d4303bebe856c08565defd1302e4905e85cfebc0dddeb0687a62350f050139c5fdf9afca089e7eb432dd6c1efb

          • C:\Windows\SysWOW64\nethtsrv.exe

            Filesize

            176KB

            MD5

            392f7f2e5ef135a1ccfd7f787e3b04ce

            SHA1

            d484574828a4d430c962dc53cb17b4678f2b8c14

            SHA256

            03468330152d82632ac9d640acc79253cb80dff5c6c8fb3ae9545b6aa83329c4

            SHA512

            6397433c3a1a64bdd07d3487f4da14d9f06b08d4303bebe856c08565defd1302e4905e85cfebc0dddeb0687a62350f050139c5fdf9afca089e7eb432dd6c1efb

          • C:\Windows\SysWOW64\nethtsrv.exe

            Filesize

            176KB

            MD5

            392f7f2e5ef135a1ccfd7f787e3b04ce

            SHA1

            d484574828a4d430c962dc53cb17b4678f2b8c14

            SHA256

            03468330152d82632ac9d640acc79253cb80dff5c6c8fb3ae9545b6aa83329c4

            SHA512

            6397433c3a1a64bdd07d3487f4da14d9f06b08d4303bebe856c08565defd1302e4905e85cfebc0dddeb0687a62350f050139c5fdf9afca089e7eb432dd6c1efb

          • C:\Windows\SysWOW64\netupdsrv.exe

            Filesize

            158KB

            MD5

            e222505f36dbc9f0e3449451cd652ee8

            SHA1

            debe08c111e32fe9194da92db9742e7e529696d3

            SHA256

            60fdc2b655dfa17f42eeadef9fb3d85c08ca472d9631ed4f570e57c4e63ddb9f

            SHA512

            ba8f43495b001fd40b74512dff4fb4834932e3eb4d5c18666022cb358f13f54eb308d0fc47b4b040935108d040a7f14377724d1e422460ff409a2895abdfa24c

          • C:\Windows\SysWOW64\netupdsrv.exe

            Filesize

            158KB

            MD5

            e222505f36dbc9f0e3449451cd652ee8

            SHA1

            debe08c111e32fe9194da92db9742e7e529696d3

            SHA256

            60fdc2b655dfa17f42eeadef9fb3d85c08ca472d9631ed4f570e57c4e63ddb9f

            SHA512

            ba8f43495b001fd40b74512dff4fb4834932e3eb4d5c18666022cb358f13f54eb308d0fc47b4b040935108d040a7f14377724d1e422460ff409a2895abdfa24c

          • C:\Windows\SysWOW64\netupdsrv.exe

            Filesize

            158KB

            MD5

            e222505f36dbc9f0e3449451cd652ee8

            SHA1

            debe08c111e32fe9194da92db9742e7e529696d3

            SHA256

            60fdc2b655dfa17f42eeadef9fb3d85c08ca472d9631ed4f570e57c4e63ddb9f

            SHA512

            ba8f43495b001fd40b74512dff4fb4834932e3eb4d5c18666022cb358f13f54eb308d0fc47b4b040935108d040a7f14377724d1e422460ff409a2895abdfa24c

          • memory/3436-132-0x0000000000360000-0x00000000007BE000-memory.dmp

            Filesize

            4.4MB

          • memory/3436-168-0x0000000000360000-0x00000000007BE000-memory.dmp

            Filesize

            4.4MB