Analysis

  • max time kernel
    90s
  • max time network
    155s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20220901-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20220901-enlocale:en-usos:windows10-2004-x64system
  • submitted
    23-11-2022 10:21

General

  • Target

    80a36adbf773c53276a945e3cd7671ec3bf6fe0b57f29ee5e702524d11031520.exe

  • Size

    602KB

  • MD5

    b89935a1325023f4ec108dccfcef95b6

  • SHA1

    bfbf2d8b629ea857f94d746ee3a7bc1e9a553e19

  • SHA256

    80a36adbf773c53276a945e3cd7671ec3bf6fe0b57f29ee5e702524d11031520

  • SHA512

    477cedc28287ac3a4086e992847e0342cbd6809bb60e54fe62c66cd7d2b8ca85c0512c7c5ed3380d9ce64a38e9aabb6d3b8dd7c18a16113b285621aa3f41b97f

  • SSDEEP

    12288:AIny5DYTj+pPkzgsuFAQ7HRZpvsuZAw151KSleDszoH:+UTjvgHR7Vb5YSloszoH

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\80a36adbf773c53276a945e3cd7671ec3bf6fe0b57f29ee5e702524d11031520.exe
    "C:\Users\Admin\AppData\Local\Temp\80a36adbf773c53276a945e3cd7671ec3bf6fe0b57f29ee5e702524d11031520.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:4816
    • C:\Windows\SysWOW64\net.exe
      net stop nethttpservice
      2⤵
      • Suspicious use of WriteProcessMemory
      PID:3280
      • C:\Windows\SysWOW64\net1.exe
        C:\Windows\system32\net1 stop nethttpservice
        3⤵
          PID:1780
      • C:\Windows\SysWOW64\net.exe
        net stop serviceupdater
        2⤵
        • Suspicious use of WriteProcessMemory
        PID:1896
        • C:\Windows\SysWOW64\net1.exe
          C:\Windows\system32\net1 stop serviceupdater
          3⤵
            PID:2460
        • C:\Windows\SysWOW64\installd.exe
          "C:\Windows\system32\installd.exe" nethfdrv
          2⤵
          • Executes dropped EXE
          • Loads dropped DLL
          PID:1848
        • C:\Windows\SysWOW64\nethtsrv.exe
          "C:\Windows\system32\nethtsrv.exe" -nfdi
          2⤵
          • Executes dropped EXE
          • Loads dropped DLL
          PID:2648
        • C:\Windows\SysWOW64\netupdsrv.exe
          "C:\Windows\system32\netupdsrv.exe" -nfdi
          2⤵
          • Executes dropped EXE
          PID:4052
        • C:\Windows\SysWOW64\net.exe
          net start nethttpservice
          2⤵
          • Suspicious use of WriteProcessMemory
          PID:4592
          • C:\Windows\SysWOW64\net1.exe
            C:\Windows\system32\net1 start nethttpservice
            3⤵
              PID:3464
          • C:\Windows\SysWOW64\net.exe
            net start serviceupdater
            2⤵
            • Suspicious use of WriteProcessMemory
            PID:4220
            • C:\Windows\SysWOW64\net1.exe
              C:\Windows\system32\net1 start serviceupdater
              3⤵
                PID:1656
          • 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:1764
          • C:\Windows\SysWOW64\netupdsrv.exe
            C:\Windows\SysWOW64\netupdsrv.exe
            1⤵
            • Executes dropped EXE
            PID:2024

          Network

          MITRE ATT&CK Enterprise v6

          Replay Monitor

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          Downloads

          • C:\Users\Admin\AppData\Local\Temp\nskC896.tmp\System.dll

            Filesize

            11KB

            MD5

            c17103ae9072a06da581dec998343fc1

            SHA1

            b72148c6bdfaada8b8c3f950e610ee7cf1da1f8d

            SHA256

            dc58d8ad81cacb0c1ed72e33bff8f23ea40b5252b5bb55d393a0903e6819ae2f

            SHA512

            d32a71aaef18e993f28096d536e41c4d016850721b31171513ce28bbd805a54fd290b7c3e9d935f72e676a1acfb4f0dcc89d95040a0dd29f2b6975855c18986f

          • C:\Users\Admin\AppData\Local\Temp\nskC896.tmp\nsExec.dll

            Filesize

            6KB

            MD5

            acc2b699edfea5bf5aae45aba3a41e96

            SHA1

            d2accf4d494e43ceb2cff69abe4dd17147d29cc2

            SHA256

            168a974eaa3f588d759db3f47c1a9fdc3494ba1fa1a73a84e5e3b2a4d58abd7e

            SHA512

            e29ea10ada98c71a18273b04f44f385b120d4e8473e441ce5748cfa44a23648814f2656f429b85440157988c88de776c6ac008dc38bf09cbb746c230a46c69fe

          • C:\Users\Admin\AppData\Local\Temp\nskC896.tmp\nsExec.dll

            Filesize

            6KB

            MD5

            acc2b699edfea5bf5aae45aba3a41e96

            SHA1

            d2accf4d494e43ceb2cff69abe4dd17147d29cc2

            SHA256

            168a974eaa3f588d759db3f47c1a9fdc3494ba1fa1a73a84e5e3b2a4d58abd7e

            SHA512

            e29ea10ada98c71a18273b04f44f385b120d4e8473e441ce5748cfa44a23648814f2656f429b85440157988c88de776c6ac008dc38bf09cbb746c230a46c69fe

          • C:\Users\Admin\AppData\Local\Temp\nskC896.tmp\nsExec.dll

            Filesize

            6KB

            MD5

            acc2b699edfea5bf5aae45aba3a41e96

            SHA1

            d2accf4d494e43ceb2cff69abe4dd17147d29cc2

            SHA256

            168a974eaa3f588d759db3f47c1a9fdc3494ba1fa1a73a84e5e3b2a4d58abd7e

            SHA512

            e29ea10ada98c71a18273b04f44f385b120d4e8473e441ce5748cfa44a23648814f2656f429b85440157988c88de776c6ac008dc38bf09cbb746c230a46c69fe

          • C:\Users\Admin\AppData\Local\Temp\nskC896.tmp\nsExec.dll

            Filesize

            6KB

            MD5

            acc2b699edfea5bf5aae45aba3a41e96

            SHA1

            d2accf4d494e43ceb2cff69abe4dd17147d29cc2

            SHA256

            168a974eaa3f588d759db3f47c1a9fdc3494ba1fa1a73a84e5e3b2a4d58abd7e

            SHA512

            e29ea10ada98c71a18273b04f44f385b120d4e8473e441ce5748cfa44a23648814f2656f429b85440157988c88de776c6ac008dc38bf09cbb746c230a46c69fe

          • C:\Users\Admin\AppData\Local\Temp\nskC896.tmp\nsExec.dll

            Filesize

            6KB

            MD5

            acc2b699edfea5bf5aae45aba3a41e96

            SHA1

            d2accf4d494e43ceb2cff69abe4dd17147d29cc2

            SHA256

            168a974eaa3f588d759db3f47c1a9fdc3494ba1fa1a73a84e5e3b2a4d58abd7e

            SHA512

            e29ea10ada98c71a18273b04f44f385b120d4e8473e441ce5748cfa44a23648814f2656f429b85440157988c88de776c6ac008dc38bf09cbb746c230a46c69fe

          • C:\Users\Admin\AppData\Local\Temp\nskC896.tmp\nsExec.dll

            Filesize

            6KB

            MD5

            acc2b699edfea5bf5aae45aba3a41e96

            SHA1

            d2accf4d494e43ceb2cff69abe4dd17147d29cc2

            SHA256

            168a974eaa3f588d759db3f47c1a9fdc3494ba1fa1a73a84e5e3b2a4d58abd7e

            SHA512

            e29ea10ada98c71a18273b04f44f385b120d4e8473e441ce5748cfa44a23648814f2656f429b85440157988c88de776c6ac008dc38bf09cbb746c230a46c69fe

          • C:\Users\Admin\AppData\Local\Temp\nskC896.tmp\nsExec.dll

            Filesize

            6KB

            MD5

            acc2b699edfea5bf5aae45aba3a41e96

            SHA1

            d2accf4d494e43ceb2cff69abe4dd17147d29cc2

            SHA256

            168a974eaa3f588d759db3f47c1a9fdc3494ba1fa1a73a84e5e3b2a4d58abd7e

            SHA512

            e29ea10ada98c71a18273b04f44f385b120d4e8473e441ce5748cfa44a23648814f2656f429b85440157988c88de776c6ac008dc38bf09cbb746c230a46c69fe

          • C:\Users\Admin\AppData\Local\Temp\nskC896.tmp\nsExec.dll

            Filesize

            6KB

            MD5

            acc2b699edfea5bf5aae45aba3a41e96

            SHA1

            d2accf4d494e43ceb2cff69abe4dd17147d29cc2

            SHA256

            168a974eaa3f588d759db3f47c1a9fdc3494ba1fa1a73a84e5e3b2a4d58abd7e

            SHA512

            e29ea10ada98c71a18273b04f44f385b120d4e8473e441ce5748cfa44a23648814f2656f429b85440157988c88de776c6ac008dc38bf09cbb746c230a46c69fe

          • C:\Windows\SysWOW64\hfnapi.dll

            Filesize

            106KB

            MD5

            3e3e2c124ce5cf7a77f8bfd2921dedf6

            SHA1

            23aea86715fc285510dab74e3a47614a23bc2b89

            SHA256

            847d6dad3d1664e19de133c457dfb901f042461c3919f99420758d50d93103df

            SHA512

            d089f59377186759c418ef42221d3d3814dcac40fa8deef57a6eb28312698b51d9a7910f555a921b919984ca9626d81def40763f5a186039a5092df1d7fac905

          • C:\Windows\SysWOW64\hfnapi.dll

            Filesize

            106KB

            MD5

            3e3e2c124ce5cf7a77f8bfd2921dedf6

            SHA1

            23aea86715fc285510dab74e3a47614a23bc2b89

            SHA256

            847d6dad3d1664e19de133c457dfb901f042461c3919f99420758d50d93103df

            SHA512

            d089f59377186759c418ef42221d3d3814dcac40fa8deef57a6eb28312698b51d9a7910f555a921b919984ca9626d81def40763f5a186039a5092df1d7fac905

          • C:\Windows\SysWOW64\hfnapi.dll

            Filesize

            106KB

            MD5

            3e3e2c124ce5cf7a77f8bfd2921dedf6

            SHA1

            23aea86715fc285510dab74e3a47614a23bc2b89

            SHA256

            847d6dad3d1664e19de133c457dfb901f042461c3919f99420758d50d93103df

            SHA512

            d089f59377186759c418ef42221d3d3814dcac40fa8deef57a6eb28312698b51d9a7910f555a921b919984ca9626d81def40763f5a186039a5092df1d7fac905

          • C:\Windows\SysWOW64\hfnapi.dll

            Filesize

            106KB

            MD5

            3e3e2c124ce5cf7a77f8bfd2921dedf6

            SHA1

            23aea86715fc285510dab74e3a47614a23bc2b89

            SHA256

            847d6dad3d1664e19de133c457dfb901f042461c3919f99420758d50d93103df

            SHA512

            d089f59377186759c418ef42221d3d3814dcac40fa8deef57a6eb28312698b51d9a7910f555a921b919984ca9626d81def40763f5a186039a5092df1d7fac905

          • C:\Windows\SysWOW64\hfpapi.dll

            Filesize

            241KB

            MD5

            7b4b2ba9f4ebd520a16410317b9dff6e

            SHA1

            5a84b2bbe395919fa281d020f7a1acf6313da591

            SHA256

            8aba73b26e20f6fdc396f9753a2560a61cf4c767129344acf506a1fe0deea53a

            SHA512

            037703014ab99ff3a8097742f3cb4be6ec52395f96d7d007df14a35b67c0d9f981a00e98971d088e546b3fb3b4a2e505881acf7a268970eecf824e04dbd0ac59

          • C:\Windows\SysWOW64\hfpapi.dll

            Filesize

            241KB

            MD5

            7b4b2ba9f4ebd520a16410317b9dff6e

            SHA1

            5a84b2bbe395919fa281d020f7a1acf6313da591

            SHA256

            8aba73b26e20f6fdc396f9753a2560a61cf4c767129344acf506a1fe0deea53a

            SHA512

            037703014ab99ff3a8097742f3cb4be6ec52395f96d7d007df14a35b67c0d9f981a00e98971d088e546b3fb3b4a2e505881acf7a268970eecf824e04dbd0ac59

          • C:\Windows\SysWOW64\hfpapi.dll

            Filesize

            241KB

            MD5

            7b4b2ba9f4ebd520a16410317b9dff6e

            SHA1

            5a84b2bbe395919fa281d020f7a1acf6313da591

            SHA256

            8aba73b26e20f6fdc396f9753a2560a61cf4c767129344acf506a1fe0deea53a

            SHA512

            037703014ab99ff3a8097742f3cb4be6ec52395f96d7d007df14a35b67c0d9f981a00e98971d088e546b3fb3b4a2e505881acf7a268970eecf824e04dbd0ac59

          • C:\Windows\SysWOW64\installd.exe

            Filesize

            108KB

            MD5

            032044a456571d2bdc3c0b37f552d87f

            SHA1

            67b8d4b4e095156d460e68b0dafaf23b88897b3b

            SHA256

            ad8ae7a117b9c6e42da699ae7992e032a79c53b3993a1c03ceb199cffd8b305c

            SHA512

            a944b54743528b7350ea479883840e489da0b0f98d6641eae6a16d050c077e4739492a44c7c4330b5b458cbb52d3fc31e6326f59dd3c5b952b60967d7beee5fa

          • C:\Windows\SysWOW64\installd.exe

            Filesize

            108KB

            MD5

            032044a456571d2bdc3c0b37f552d87f

            SHA1

            67b8d4b4e095156d460e68b0dafaf23b88897b3b

            SHA256

            ad8ae7a117b9c6e42da699ae7992e032a79c53b3993a1c03ceb199cffd8b305c

            SHA512

            a944b54743528b7350ea479883840e489da0b0f98d6641eae6a16d050c077e4739492a44c7c4330b5b458cbb52d3fc31e6326f59dd3c5b952b60967d7beee5fa

          • C:\Windows\SysWOW64\nethtsrv.exe

            Filesize

            176KB

            MD5

            c05d015d0beb3112af4f90dce8fae9ba

            SHA1

            394f3ad32a681af8907a083fd0dc96408c3e8af8

            SHA256

            7ab88a45e77e134b7d8f8e9b804a4e50980b9455dd665dedfebf8b5f8d62c84b

            SHA512

            be5e584a54f11bc79dcbcf5c99c4f951570652b4492b841e805da9423d218b793e5e6fe9d78473eb1d6a204759d28787b917a54a6d171df1d5f60c4c180dc35e

          • C:\Windows\SysWOW64\nethtsrv.exe

            Filesize

            176KB

            MD5

            c05d015d0beb3112af4f90dce8fae9ba

            SHA1

            394f3ad32a681af8907a083fd0dc96408c3e8af8

            SHA256

            7ab88a45e77e134b7d8f8e9b804a4e50980b9455dd665dedfebf8b5f8d62c84b

            SHA512

            be5e584a54f11bc79dcbcf5c99c4f951570652b4492b841e805da9423d218b793e5e6fe9d78473eb1d6a204759d28787b917a54a6d171df1d5f60c4c180dc35e

          • C:\Windows\SysWOW64\nethtsrv.exe

            Filesize

            176KB

            MD5

            c05d015d0beb3112af4f90dce8fae9ba

            SHA1

            394f3ad32a681af8907a083fd0dc96408c3e8af8

            SHA256

            7ab88a45e77e134b7d8f8e9b804a4e50980b9455dd665dedfebf8b5f8d62c84b

            SHA512

            be5e584a54f11bc79dcbcf5c99c4f951570652b4492b841e805da9423d218b793e5e6fe9d78473eb1d6a204759d28787b917a54a6d171df1d5f60c4c180dc35e

          • C:\Windows\SysWOW64\netupdsrv.exe

            Filesize

            158KB

            MD5

            109d366e62d2ca1d1a0206be2ad191b6

            SHA1

            dae68663bfad7ed7239509eb20bbb0cccc9dca3e

            SHA256

            b738e7081239c69eacdd3380b36dbac0bad78e7dc9ce6d7de9ccccbc53af3315

            SHA512

            f5ef52226b387e0b64ced9cbef3d7e3ad70595aaf766c6f193b140f1f73f0fc452c5aa583e873d87f50fe43e10877087f06fa7a80fb1c28179c2be7ac91e7b1e

          • C:\Windows\SysWOW64\netupdsrv.exe

            Filesize

            158KB

            MD5

            109d366e62d2ca1d1a0206be2ad191b6

            SHA1

            dae68663bfad7ed7239509eb20bbb0cccc9dca3e

            SHA256

            b738e7081239c69eacdd3380b36dbac0bad78e7dc9ce6d7de9ccccbc53af3315

            SHA512

            f5ef52226b387e0b64ced9cbef3d7e3ad70595aaf766c6f193b140f1f73f0fc452c5aa583e873d87f50fe43e10877087f06fa7a80fb1c28179c2be7ac91e7b1e

          • C:\Windows\SysWOW64\netupdsrv.exe

            Filesize

            158KB

            MD5

            109d366e62d2ca1d1a0206be2ad191b6

            SHA1

            dae68663bfad7ed7239509eb20bbb0cccc9dca3e

            SHA256

            b738e7081239c69eacdd3380b36dbac0bad78e7dc9ce6d7de9ccccbc53af3315

            SHA512

            f5ef52226b387e0b64ced9cbef3d7e3ad70595aaf766c6f193b140f1f73f0fc452c5aa583e873d87f50fe43e10877087f06fa7a80fb1c28179c2be7ac91e7b1e

          • memory/1656-166-0x0000000000000000-mapping.dmp

          • memory/1780-137-0x0000000000000000-mapping.dmp

          • memory/1848-142-0x0000000000000000-mapping.dmp

          • memory/1896-140-0x0000000000000000-mapping.dmp

          • memory/2460-141-0x0000000000000000-mapping.dmp

          • memory/2648-147-0x0000000000000000-mapping.dmp

          • memory/3280-136-0x0000000000000000-mapping.dmp

          • memory/3464-159-0x0000000000000000-mapping.dmp

          • memory/4052-153-0x0000000000000000-mapping.dmp

          • memory/4220-165-0x0000000000000000-mapping.dmp

          • memory/4592-158-0x0000000000000000-mapping.dmp

          • memory/4816-132-0x0000000000360000-0x00000000007BE000-memory.dmp

            Filesize

            4.4MB

          • memory/4816-168-0x0000000000360000-0x00000000007BE000-memory.dmp

            Filesize

            4.4MB