Analysis

  • max time kernel
    175s
  • max time network
    188s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20220812-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20220812-enlocale:en-usos:windows10-2004-x64system
  • submitted
    24/11/2022, 05:42

General

  • Target

    90ea0f007830403c8a78bface32595781b628cbc4732d1c9aa88b268a0a3f0da.exe

  • Size

    672KB

  • MD5

    100f05637837da051b77c780cfec1134

  • SHA1

    a7acdde4ee8afa09a52d1e0ca150cf0777ea0ab9

  • SHA256

    90ea0f007830403c8a78bface32595781b628cbc4732d1c9aa88b268a0a3f0da

  • SHA512

    34c0f3b7e7bc539561ffa786db8f9f56d310eedfde591c0e7df257737003df18e200b5f0606401686a34b7a4b924a4e35e977818fd8023188c028614f595fc40

  • SSDEEP

    12288:V+1VlCxzXBInIv+iZXStVTEtOJ34ETYoNMWDIjsy6gkUqbfD1JkhtSficBIE:2VIxy0hS/ThYoNMWDk/60MfDvkhtSfip

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\90ea0f007830403c8a78bface32595781b628cbc4732d1c9aa88b268a0a3f0da.exe
    "C:\Users\Admin\AppData\Local\Temp\90ea0f007830403c8a78bface32595781b628cbc4732d1c9aa88b268a0a3f0da.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:768
    • 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:1108
      • C:\Windows\SysWOW64\net.exe
        net stop serviceupdater
        2⤵
        • Suspicious use of WriteProcessMemory
        PID:4548
        • C:\Windows\SysWOW64\net1.exe
          C:\Windows\system32\net1 stop serviceupdater
          3⤵
            PID:4808
        • C:\Windows\SysWOW64\installd.exe
          "C:\Windows\system32\installd.exe" nethfdrv
          2⤵
          • Executes dropped EXE
          • Loads dropped DLL
          PID:4696
        • C:\Windows\SysWOW64\nethtsrv.exe
          "C:\Windows\system32\nethtsrv.exe" -nfdi
          2⤵
          • Executes dropped EXE
          • Loads dropped DLL
          PID:3664
        • C:\Windows\SysWOW64\netupdsrv.exe
          "C:\Windows\system32\netupdsrv.exe" -nfdi
          2⤵
          • Executes dropped EXE
          PID:1400
        • C:\Windows\SysWOW64\net.exe
          net start nethttpservice
          2⤵
          • Suspicious use of WriteProcessMemory
          PID:756
          • C:\Windows\SysWOW64\net1.exe
            C:\Windows\system32\net1 start nethttpservice
            3⤵
              PID:1588
          • C:\Windows\SysWOW64\net.exe
            net start serviceupdater
            2⤵
            • Suspicious use of WriteProcessMemory
            PID:3516
            • C:\Windows\SysWOW64\net1.exe
              C:\Windows\system32\net1 start serviceupdater
              3⤵
                PID:1452
          • 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:176
          • C:\Windows\SysWOW64\netupdsrv.exe
            C:\Windows\SysWOW64\netupdsrv.exe
            1⤵
            • Executes dropped EXE
            PID:3792

          Network

          MITRE ATT&CK Enterprise v6

          Replay Monitor

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          Downloads

          • C:\Users\Admin\AppData\Local\Temp\nsl8AD.tmp\System.dll

            Filesize

            11KB

            MD5

            c17103ae9072a06da581dec998343fc1

            SHA1

            b72148c6bdfaada8b8c3f950e610ee7cf1da1f8d

            SHA256

            dc58d8ad81cacb0c1ed72e33bff8f23ea40b5252b5bb55d393a0903e6819ae2f

            SHA512

            d32a71aaef18e993f28096d536e41c4d016850721b31171513ce28bbd805a54fd290b7c3e9d935f72e676a1acfb4f0dcc89d95040a0dd29f2b6975855c18986f

          • C:\Users\Admin\AppData\Local\Temp\nsl8AD.tmp\nsExec.dll

            Filesize

            6KB

            MD5

            acc2b699edfea5bf5aae45aba3a41e96

            SHA1

            d2accf4d494e43ceb2cff69abe4dd17147d29cc2

            SHA256

            168a974eaa3f588d759db3f47c1a9fdc3494ba1fa1a73a84e5e3b2a4d58abd7e

            SHA512

            e29ea10ada98c71a18273b04f44f385b120d4e8473e441ce5748cfa44a23648814f2656f429b85440157988c88de776c6ac008dc38bf09cbb746c230a46c69fe

          • C:\Users\Admin\AppData\Local\Temp\nsl8AD.tmp\nsExec.dll

            Filesize

            6KB

            MD5

            acc2b699edfea5bf5aae45aba3a41e96

            SHA1

            d2accf4d494e43ceb2cff69abe4dd17147d29cc2

            SHA256

            168a974eaa3f588d759db3f47c1a9fdc3494ba1fa1a73a84e5e3b2a4d58abd7e

            SHA512

            e29ea10ada98c71a18273b04f44f385b120d4e8473e441ce5748cfa44a23648814f2656f429b85440157988c88de776c6ac008dc38bf09cbb746c230a46c69fe

          • C:\Users\Admin\AppData\Local\Temp\nsl8AD.tmp\nsExec.dll

            Filesize

            6KB

            MD5

            acc2b699edfea5bf5aae45aba3a41e96

            SHA1

            d2accf4d494e43ceb2cff69abe4dd17147d29cc2

            SHA256

            168a974eaa3f588d759db3f47c1a9fdc3494ba1fa1a73a84e5e3b2a4d58abd7e

            SHA512

            e29ea10ada98c71a18273b04f44f385b120d4e8473e441ce5748cfa44a23648814f2656f429b85440157988c88de776c6ac008dc38bf09cbb746c230a46c69fe

          • C:\Users\Admin\AppData\Local\Temp\nsl8AD.tmp\nsExec.dll

            Filesize

            6KB

            MD5

            acc2b699edfea5bf5aae45aba3a41e96

            SHA1

            d2accf4d494e43ceb2cff69abe4dd17147d29cc2

            SHA256

            168a974eaa3f588d759db3f47c1a9fdc3494ba1fa1a73a84e5e3b2a4d58abd7e

            SHA512

            e29ea10ada98c71a18273b04f44f385b120d4e8473e441ce5748cfa44a23648814f2656f429b85440157988c88de776c6ac008dc38bf09cbb746c230a46c69fe

          • C:\Users\Admin\AppData\Local\Temp\nsl8AD.tmp\nsExec.dll

            Filesize

            6KB

            MD5

            acc2b699edfea5bf5aae45aba3a41e96

            SHA1

            d2accf4d494e43ceb2cff69abe4dd17147d29cc2

            SHA256

            168a974eaa3f588d759db3f47c1a9fdc3494ba1fa1a73a84e5e3b2a4d58abd7e

            SHA512

            e29ea10ada98c71a18273b04f44f385b120d4e8473e441ce5748cfa44a23648814f2656f429b85440157988c88de776c6ac008dc38bf09cbb746c230a46c69fe

          • C:\Users\Admin\AppData\Local\Temp\nsl8AD.tmp\nsExec.dll

            Filesize

            6KB

            MD5

            acc2b699edfea5bf5aae45aba3a41e96

            SHA1

            d2accf4d494e43ceb2cff69abe4dd17147d29cc2

            SHA256

            168a974eaa3f588d759db3f47c1a9fdc3494ba1fa1a73a84e5e3b2a4d58abd7e

            SHA512

            e29ea10ada98c71a18273b04f44f385b120d4e8473e441ce5748cfa44a23648814f2656f429b85440157988c88de776c6ac008dc38bf09cbb746c230a46c69fe

          • C:\Users\Admin\AppData\Local\Temp\nsl8AD.tmp\nsExec.dll

            Filesize

            6KB

            MD5

            acc2b699edfea5bf5aae45aba3a41e96

            SHA1

            d2accf4d494e43ceb2cff69abe4dd17147d29cc2

            SHA256

            168a974eaa3f588d759db3f47c1a9fdc3494ba1fa1a73a84e5e3b2a4d58abd7e

            SHA512

            e29ea10ada98c71a18273b04f44f385b120d4e8473e441ce5748cfa44a23648814f2656f429b85440157988c88de776c6ac008dc38bf09cbb746c230a46c69fe

          • C:\Users\Admin\AppData\Local\Temp\nsl8AD.tmp\nsExec.dll

            Filesize

            6KB

            MD5

            acc2b699edfea5bf5aae45aba3a41e96

            SHA1

            d2accf4d494e43ceb2cff69abe4dd17147d29cc2

            SHA256

            168a974eaa3f588d759db3f47c1a9fdc3494ba1fa1a73a84e5e3b2a4d58abd7e

            SHA512

            e29ea10ada98c71a18273b04f44f385b120d4e8473e441ce5748cfa44a23648814f2656f429b85440157988c88de776c6ac008dc38bf09cbb746c230a46c69fe

          • C:\Windows\SysWOW64\hfnapi.dll

            Filesize

            106KB

            MD5

            b92ec1c94ad883fab9ad15c92c9f499f

            SHA1

            da5b9354d87abdf43575cf735c5bdf4235f0aa0e

            SHA256

            c5ad5bee6ec5cbf45b449e890bb79a42c5158be46298d22c42f1f12c90909052

            SHA512

            b0232994d275fe2baad9147e5631a85366fab6820e1c431d7f29ae1ce879e80b29bd48d8ee1ae079a83173018277e2dd206dbdcba2a1390dbf1775b580b152bc

          • C:\Windows\SysWOW64\hfnapi.dll

            Filesize

            106KB

            MD5

            b92ec1c94ad883fab9ad15c92c9f499f

            SHA1

            da5b9354d87abdf43575cf735c5bdf4235f0aa0e

            SHA256

            c5ad5bee6ec5cbf45b449e890bb79a42c5158be46298d22c42f1f12c90909052

            SHA512

            b0232994d275fe2baad9147e5631a85366fab6820e1c431d7f29ae1ce879e80b29bd48d8ee1ae079a83173018277e2dd206dbdcba2a1390dbf1775b580b152bc

          • C:\Windows\SysWOW64\hfnapi.dll

            Filesize

            106KB

            MD5

            b92ec1c94ad883fab9ad15c92c9f499f

            SHA1

            da5b9354d87abdf43575cf735c5bdf4235f0aa0e

            SHA256

            c5ad5bee6ec5cbf45b449e890bb79a42c5158be46298d22c42f1f12c90909052

            SHA512

            b0232994d275fe2baad9147e5631a85366fab6820e1c431d7f29ae1ce879e80b29bd48d8ee1ae079a83173018277e2dd206dbdcba2a1390dbf1775b580b152bc

          • C:\Windows\SysWOW64\hfnapi.dll

            Filesize

            106KB

            MD5

            b92ec1c94ad883fab9ad15c92c9f499f

            SHA1

            da5b9354d87abdf43575cf735c5bdf4235f0aa0e

            SHA256

            c5ad5bee6ec5cbf45b449e890bb79a42c5158be46298d22c42f1f12c90909052

            SHA512

            b0232994d275fe2baad9147e5631a85366fab6820e1c431d7f29ae1ce879e80b29bd48d8ee1ae079a83173018277e2dd206dbdcba2a1390dbf1775b580b152bc

          • C:\Windows\SysWOW64\hfpapi.dll

            Filesize

            241KB

            MD5

            1da21e58799a7e25680bf72adb1455e2

            SHA1

            57e21d3fa605403781a02c12b0d93fd5401f238e

            SHA256

            81d007c07ab4471dae6731962c84600f44b10673c8a89c5243b04cb00a398fbb

            SHA512

            5ddeb5f6fff4e65c7a11ce9316ec02815ac82ce62f14b88df787d4d271675614b35b1b999145cb99337488b46eb3345dd9582205206f3763224ac860a5a6fbbd

          • C:\Windows\SysWOW64\hfpapi.dll

            Filesize

            241KB

            MD5

            1da21e58799a7e25680bf72adb1455e2

            SHA1

            57e21d3fa605403781a02c12b0d93fd5401f238e

            SHA256

            81d007c07ab4471dae6731962c84600f44b10673c8a89c5243b04cb00a398fbb

            SHA512

            5ddeb5f6fff4e65c7a11ce9316ec02815ac82ce62f14b88df787d4d271675614b35b1b999145cb99337488b46eb3345dd9582205206f3763224ac860a5a6fbbd

          • C:\Windows\SysWOW64\hfpapi.dll

            Filesize

            241KB

            MD5

            1da21e58799a7e25680bf72adb1455e2

            SHA1

            57e21d3fa605403781a02c12b0d93fd5401f238e

            SHA256

            81d007c07ab4471dae6731962c84600f44b10673c8a89c5243b04cb00a398fbb

            SHA512

            5ddeb5f6fff4e65c7a11ce9316ec02815ac82ce62f14b88df787d4d271675614b35b1b999145cb99337488b46eb3345dd9582205206f3763224ac860a5a6fbbd

          • C:\Windows\SysWOW64\installd.exe

            Filesize

            108KB

            MD5

            833e4f58b965a43754c7ba4ca06be9b6

            SHA1

            ff8887e9cb43b300b4ffa7220acda996cf7921fe

            SHA256

            ecd48dfe47a4e0b3b718a70a00df20df475dbc38b6227bc073ad4c1b3a0aff57

            SHA512

            6f9284d054ccd9ae8b41111b255fd80585d00a27b2aff3409b575bb2d58b8eb9aa8a6f35cb626e9f1a8d185e923ea4e28dd496654e4e6350596d6ec4540e7c3d

          • C:\Windows\SysWOW64\installd.exe

            Filesize

            108KB

            MD5

            833e4f58b965a43754c7ba4ca06be9b6

            SHA1

            ff8887e9cb43b300b4ffa7220acda996cf7921fe

            SHA256

            ecd48dfe47a4e0b3b718a70a00df20df475dbc38b6227bc073ad4c1b3a0aff57

            SHA512

            6f9284d054ccd9ae8b41111b255fd80585d00a27b2aff3409b575bb2d58b8eb9aa8a6f35cb626e9f1a8d185e923ea4e28dd496654e4e6350596d6ec4540e7c3d

          • C:\Windows\SysWOW64\nethtsrv.exe

            Filesize

            176KB

            MD5

            af428162e99795c28b783ecfc97d7da5

            SHA1

            f110e846c2f1f2665fedb84f86978350c5b40497

            SHA256

            05640ad23862d7881b5d3e6b103980b9c0ed9e98c3728116aa43d3d9cc87110f

            SHA512

            292b7355cd833b1910182b28da5af13529c8db270ef96c0b76c8703d9195fe2e7a7f8c71e9a40035c800cc317ae188908778b4ec3caffb9e8a9ea368f447ce0e

          • C:\Windows\SysWOW64\nethtsrv.exe

            Filesize

            176KB

            MD5

            af428162e99795c28b783ecfc97d7da5

            SHA1

            f110e846c2f1f2665fedb84f86978350c5b40497

            SHA256

            05640ad23862d7881b5d3e6b103980b9c0ed9e98c3728116aa43d3d9cc87110f

            SHA512

            292b7355cd833b1910182b28da5af13529c8db270ef96c0b76c8703d9195fe2e7a7f8c71e9a40035c800cc317ae188908778b4ec3caffb9e8a9ea368f447ce0e

          • C:\Windows\SysWOW64\nethtsrv.exe

            Filesize

            176KB

            MD5

            af428162e99795c28b783ecfc97d7da5

            SHA1

            f110e846c2f1f2665fedb84f86978350c5b40497

            SHA256

            05640ad23862d7881b5d3e6b103980b9c0ed9e98c3728116aa43d3d9cc87110f

            SHA512

            292b7355cd833b1910182b28da5af13529c8db270ef96c0b76c8703d9195fe2e7a7f8c71e9a40035c800cc317ae188908778b4ec3caffb9e8a9ea368f447ce0e

          • C:\Windows\SysWOW64\netupdsrv.exe

            Filesize

            158KB

            MD5

            59a9b5917c534b9967be41493f022dd1

            SHA1

            5bfed7858398741cce3ffa1641c4f04aa44a8f2b

            SHA256

            2534638ea6cead8b69370d31e385c5ae904be71f7e68a5ccdebb31f50f0f6b14

            SHA512

            494d1c954d32f8d2f3beb8de58d3b8b94d4dc661ce2184ec8c866f6413ac7d37eab81d4cc3b2eaa1bb7f57701fe150c4baa1bdddf54080acd812b77efd1a703f

          • C:\Windows\SysWOW64\netupdsrv.exe

            Filesize

            158KB

            MD5

            59a9b5917c534b9967be41493f022dd1

            SHA1

            5bfed7858398741cce3ffa1641c4f04aa44a8f2b

            SHA256

            2534638ea6cead8b69370d31e385c5ae904be71f7e68a5ccdebb31f50f0f6b14

            SHA512

            494d1c954d32f8d2f3beb8de58d3b8b94d4dc661ce2184ec8c866f6413ac7d37eab81d4cc3b2eaa1bb7f57701fe150c4baa1bdddf54080acd812b77efd1a703f

          • C:\Windows\SysWOW64\netupdsrv.exe

            Filesize

            158KB

            MD5

            59a9b5917c534b9967be41493f022dd1

            SHA1

            5bfed7858398741cce3ffa1641c4f04aa44a8f2b

            SHA256

            2534638ea6cead8b69370d31e385c5ae904be71f7e68a5ccdebb31f50f0f6b14

            SHA512

            494d1c954d32f8d2f3beb8de58d3b8b94d4dc661ce2184ec8c866f6413ac7d37eab81d4cc3b2eaa1bb7f57701fe150c4baa1bdddf54080acd812b77efd1a703f

          • memory/768-137-0x0000000000350000-0x00000000007BE000-memory.dmp

            Filesize

            4.4MB

          • memory/768-168-0x0000000000350000-0x00000000007BE000-memory.dmp

            Filesize

            4.4MB