Analysis

  • max time kernel
    105s
  • max time network
    156s
  • 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 10:20

General

  • Target

    8ab5b27406e957f8afdb4a4e5f20796d8170343a2e320c1d52ea7bdf48faebc8.exe

  • Size

    601KB

  • MD5

    0bde932f40db0d7040afdcf516ef1cd9

  • SHA1

    87f269dd5ae16b116acec782ce2cf83d298d90bc

  • SHA256

    8ab5b27406e957f8afdb4a4e5f20796d8170343a2e320c1d52ea7bdf48faebc8

  • SHA512

    043fedaf816a8c9809e356ecd07a598743911b6bb186442684b52462d8041cfccf0427210376fbdf70107a18e48b92cdfbc3d92ef5ca085c4e8992a606654a06

  • SSDEEP

    12288:nIny5DYTpH9WobZVGCXwG/Ogj8dj/BuNfjj1Fo5w:vUT19WUVGJGmIoj/C9Fs

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\8ab5b27406e957f8afdb4a4e5f20796d8170343a2e320c1d52ea7bdf48faebc8.exe
    "C:\Users\Admin\AppData\Local\Temp\8ab5b27406e957f8afdb4a4e5f20796d8170343a2e320c1d52ea7bdf48faebc8.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:1564
    • C:\Windows\SysWOW64\net.exe
      net stop nethttpservice
      2⤵
      • Suspicious use of WriteProcessMemory
      PID:3712
      • C:\Windows\SysWOW64\net1.exe
        C:\Windows\system32\net1 stop nethttpservice
        3⤵
          PID:3676
      • C:\Windows\SysWOW64\net.exe
        net stop serviceupdater
        2⤵
        • Suspicious use of WriteProcessMemory
        PID:3988
        • C:\Windows\SysWOW64\net1.exe
          C:\Windows\system32\net1 stop serviceupdater
          3⤵
            PID:220
        • C:\Windows\SysWOW64\installd.exe
          "C:\Windows\system32\installd.exe" nethfdrv
          2⤵
          • Executes dropped EXE
          • Loads dropped DLL
          PID:4412
        • C:\Windows\SysWOW64\nethtsrv.exe
          "C:\Windows\system32\nethtsrv.exe" -nfdi
          2⤵
          • Executes dropped EXE
          • Loads dropped DLL
          PID:3640
        • C:\Windows\SysWOW64\netupdsrv.exe
          "C:\Windows\system32\netupdsrv.exe" -nfdi
          2⤵
          • Executes dropped EXE
          PID:2256
        • C:\Windows\SysWOW64\net.exe
          net start nethttpservice
          2⤵
          • Suspicious use of WriteProcessMemory
          PID:4036
          • C:\Windows\SysWOW64\net1.exe
            C:\Windows\system32\net1 start nethttpservice
            3⤵
              PID:3396
          • C:\Windows\SysWOW64\net.exe
            net start serviceupdater
            2⤵
            • Suspicious use of WriteProcessMemory
            PID:1972
            • C:\Windows\SysWOW64\net1.exe
              C:\Windows\system32\net1 start serviceupdater
              3⤵
                PID:5080
          • 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:4320
          • C:\Windows\SysWOW64\netupdsrv.exe
            C:\Windows\SysWOW64\netupdsrv.exe
            1⤵
            • Executes dropped EXE
            PID:1880

          Network

          MITRE ATT&CK Enterprise v6

          Replay Monitor

          Loading Replay Monitor...

          Downloads

          • C:\Users\Admin\AppData\Local\Temp\nseD306.tmp\System.dll

            Filesize

            11KB

            MD5

            c17103ae9072a06da581dec998343fc1

            SHA1

            b72148c6bdfaada8b8c3f950e610ee7cf1da1f8d

            SHA256

            dc58d8ad81cacb0c1ed72e33bff8f23ea40b5252b5bb55d393a0903e6819ae2f

            SHA512

            d32a71aaef18e993f28096d536e41c4d016850721b31171513ce28bbd805a54fd290b7c3e9d935f72e676a1acfb4f0dcc89d95040a0dd29f2b6975855c18986f

          • C:\Users\Admin\AppData\Local\Temp\nseD306.tmp\nsExec.dll

            Filesize

            6KB

            MD5

            acc2b699edfea5bf5aae45aba3a41e96

            SHA1

            d2accf4d494e43ceb2cff69abe4dd17147d29cc2

            SHA256

            168a974eaa3f588d759db3f47c1a9fdc3494ba1fa1a73a84e5e3b2a4d58abd7e

            SHA512

            e29ea10ada98c71a18273b04f44f385b120d4e8473e441ce5748cfa44a23648814f2656f429b85440157988c88de776c6ac008dc38bf09cbb746c230a46c69fe

          • C:\Users\Admin\AppData\Local\Temp\nseD306.tmp\nsExec.dll

            Filesize

            6KB

            MD5

            acc2b699edfea5bf5aae45aba3a41e96

            SHA1

            d2accf4d494e43ceb2cff69abe4dd17147d29cc2

            SHA256

            168a974eaa3f588d759db3f47c1a9fdc3494ba1fa1a73a84e5e3b2a4d58abd7e

            SHA512

            e29ea10ada98c71a18273b04f44f385b120d4e8473e441ce5748cfa44a23648814f2656f429b85440157988c88de776c6ac008dc38bf09cbb746c230a46c69fe

          • C:\Users\Admin\AppData\Local\Temp\nseD306.tmp\nsExec.dll

            Filesize

            6KB

            MD5

            acc2b699edfea5bf5aae45aba3a41e96

            SHA1

            d2accf4d494e43ceb2cff69abe4dd17147d29cc2

            SHA256

            168a974eaa3f588d759db3f47c1a9fdc3494ba1fa1a73a84e5e3b2a4d58abd7e

            SHA512

            e29ea10ada98c71a18273b04f44f385b120d4e8473e441ce5748cfa44a23648814f2656f429b85440157988c88de776c6ac008dc38bf09cbb746c230a46c69fe

          • C:\Users\Admin\AppData\Local\Temp\nseD306.tmp\nsExec.dll

            Filesize

            6KB

            MD5

            acc2b699edfea5bf5aae45aba3a41e96

            SHA1

            d2accf4d494e43ceb2cff69abe4dd17147d29cc2

            SHA256

            168a974eaa3f588d759db3f47c1a9fdc3494ba1fa1a73a84e5e3b2a4d58abd7e

            SHA512

            e29ea10ada98c71a18273b04f44f385b120d4e8473e441ce5748cfa44a23648814f2656f429b85440157988c88de776c6ac008dc38bf09cbb746c230a46c69fe

          • C:\Users\Admin\AppData\Local\Temp\nseD306.tmp\nsExec.dll

            Filesize

            6KB

            MD5

            acc2b699edfea5bf5aae45aba3a41e96

            SHA1

            d2accf4d494e43ceb2cff69abe4dd17147d29cc2

            SHA256

            168a974eaa3f588d759db3f47c1a9fdc3494ba1fa1a73a84e5e3b2a4d58abd7e

            SHA512

            e29ea10ada98c71a18273b04f44f385b120d4e8473e441ce5748cfa44a23648814f2656f429b85440157988c88de776c6ac008dc38bf09cbb746c230a46c69fe

          • C:\Users\Admin\AppData\Local\Temp\nseD306.tmp\nsExec.dll

            Filesize

            6KB

            MD5

            acc2b699edfea5bf5aae45aba3a41e96

            SHA1

            d2accf4d494e43ceb2cff69abe4dd17147d29cc2

            SHA256

            168a974eaa3f588d759db3f47c1a9fdc3494ba1fa1a73a84e5e3b2a4d58abd7e

            SHA512

            e29ea10ada98c71a18273b04f44f385b120d4e8473e441ce5748cfa44a23648814f2656f429b85440157988c88de776c6ac008dc38bf09cbb746c230a46c69fe

          • C:\Users\Admin\AppData\Local\Temp\nseD306.tmp\nsExec.dll

            Filesize

            6KB

            MD5

            acc2b699edfea5bf5aae45aba3a41e96

            SHA1

            d2accf4d494e43ceb2cff69abe4dd17147d29cc2

            SHA256

            168a974eaa3f588d759db3f47c1a9fdc3494ba1fa1a73a84e5e3b2a4d58abd7e

            SHA512

            e29ea10ada98c71a18273b04f44f385b120d4e8473e441ce5748cfa44a23648814f2656f429b85440157988c88de776c6ac008dc38bf09cbb746c230a46c69fe

          • C:\Users\Admin\AppData\Local\Temp\nseD306.tmp\nsExec.dll

            Filesize

            6KB

            MD5

            acc2b699edfea5bf5aae45aba3a41e96

            SHA1

            d2accf4d494e43ceb2cff69abe4dd17147d29cc2

            SHA256

            168a974eaa3f588d759db3f47c1a9fdc3494ba1fa1a73a84e5e3b2a4d58abd7e

            SHA512

            e29ea10ada98c71a18273b04f44f385b120d4e8473e441ce5748cfa44a23648814f2656f429b85440157988c88de776c6ac008dc38bf09cbb746c230a46c69fe

          • C:\Windows\SysWOW64\hfnapi.dll

            Filesize

            106KB

            MD5

            c4b8f9ab5ff743c4ac74f2329ffbb894

            SHA1

            d7edd3557c9e274ac7b05e9abaafdc7b8d9b04ca

            SHA256

            bb23e7e1ef74b1a1ebed92962d8dd93708fa7f5f6b7540ebad2a95aef0f253d8

            SHA512

            0b50a579cca9dbba963ed4fbb49bc8c18418bc9fb05246fc00e1ae0ed5073adf81dd9072c77b62c2e799df079eed5a77cd851339c551d9f0f58346eb21de0ff7

          • C:\Windows\SysWOW64\hfnapi.dll

            Filesize

            106KB

            MD5

            c4b8f9ab5ff743c4ac74f2329ffbb894

            SHA1

            d7edd3557c9e274ac7b05e9abaafdc7b8d9b04ca

            SHA256

            bb23e7e1ef74b1a1ebed92962d8dd93708fa7f5f6b7540ebad2a95aef0f253d8

            SHA512

            0b50a579cca9dbba963ed4fbb49bc8c18418bc9fb05246fc00e1ae0ed5073adf81dd9072c77b62c2e799df079eed5a77cd851339c551d9f0f58346eb21de0ff7

          • C:\Windows\SysWOW64\hfnapi.dll

            Filesize

            106KB

            MD5

            c4b8f9ab5ff743c4ac74f2329ffbb894

            SHA1

            d7edd3557c9e274ac7b05e9abaafdc7b8d9b04ca

            SHA256

            bb23e7e1ef74b1a1ebed92962d8dd93708fa7f5f6b7540ebad2a95aef0f253d8

            SHA512

            0b50a579cca9dbba963ed4fbb49bc8c18418bc9fb05246fc00e1ae0ed5073adf81dd9072c77b62c2e799df079eed5a77cd851339c551d9f0f58346eb21de0ff7

          • C:\Windows\SysWOW64\hfnapi.dll

            Filesize

            106KB

            MD5

            c4b8f9ab5ff743c4ac74f2329ffbb894

            SHA1

            d7edd3557c9e274ac7b05e9abaafdc7b8d9b04ca

            SHA256

            bb23e7e1ef74b1a1ebed92962d8dd93708fa7f5f6b7540ebad2a95aef0f253d8

            SHA512

            0b50a579cca9dbba963ed4fbb49bc8c18418bc9fb05246fc00e1ae0ed5073adf81dd9072c77b62c2e799df079eed5a77cd851339c551d9f0f58346eb21de0ff7

          • C:\Windows\SysWOW64\hfpapi.dll

            Filesize

            241KB

            MD5

            c9a5cf2b5dc94e39b17a17eaf67afffa

            SHA1

            52c36eeb8cd2e3098ea4a4f4fb8e194ed4125828

            SHA256

            b83f90b8fc1bef2f395ba60138a852d7d4b6de6364a5373e123c0e117a7859af

            SHA512

            3526d93722a806ae7b3d305b9772e04370ad84a15f1afba30ca62a51e7381939c565e3e8723f5e0e3af34474ec4a2b2977f5dd9c7f5d373c3fa5ea77c8e14de7

          • C:\Windows\SysWOW64\hfpapi.dll

            Filesize

            241KB

            MD5

            c9a5cf2b5dc94e39b17a17eaf67afffa

            SHA1

            52c36eeb8cd2e3098ea4a4f4fb8e194ed4125828

            SHA256

            b83f90b8fc1bef2f395ba60138a852d7d4b6de6364a5373e123c0e117a7859af

            SHA512

            3526d93722a806ae7b3d305b9772e04370ad84a15f1afba30ca62a51e7381939c565e3e8723f5e0e3af34474ec4a2b2977f5dd9c7f5d373c3fa5ea77c8e14de7

          • C:\Windows\SysWOW64\hfpapi.dll

            Filesize

            241KB

            MD5

            c9a5cf2b5dc94e39b17a17eaf67afffa

            SHA1

            52c36eeb8cd2e3098ea4a4f4fb8e194ed4125828

            SHA256

            b83f90b8fc1bef2f395ba60138a852d7d4b6de6364a5373e123c0e117a7859af

            SHA512

            3526d93722a806ae7b3d305b9772e04370ad84a15f1afba30ca62a51e7381939c565e3e8723f5e0e3af34474ec4a2b2977f5dd9c7f5d373c3fa5ea77c8e14de7

          • C:\Windows\SysWOW64\installd.exe

            Filesize

            108KB

            MD5

            f5d5559d3e31adcff9d3592a04e1b73d

            SHA1

            3153b6acd067108b5f244c7df0ffb210bd87e06a

            SHA256

            6c36bfa5c02d1e74ecf1ed62a4525b567690304c64cc917b43b6268a5d10ae80

            SHA512

            078ba00fd8378e3c3639f2fbcfd105ea6398e3f36017e879f2b2cb4000c84f6ee2bc4577d062c4dac13cea5c10de7bbec6b586caf76459f82071f690880488ca

          • C:\Windows\SysWOW64\installd.exe

            Filesize

            108KB

            MD5

            f5d5559d3e31adcff9d3592a04e1b73d

            SHA1

            3153b6acd067108b5f244c7df0ffb210bd87e06a

            SHA256

            6c36bfa5c02d1e74ecf1ed62a4525b567690304c64cc917b43b6268a5d10ae80

            SHA512

            078ba00fd8378e3c3639f2fbcfd105ea6398e3f36017e879f2b2cb4000c84f6ee2bc4577d062c4dac13cea5c10de7bbec6b586caf76459f82071f690880488ca

          • C:\Windows\SysWOW64\nethtsrv.exe

            Filesize

            176KB

            MD5

            7c93892f87a05f4fba5d373f8b09f5ae

            SHA1

            9a5f2edf594c0186c7417c3744a7bd26d6fbe1b3

            SHA256

            21b70a694342ff98f706a1ad4c9599a813b25d17192bcdd97ed9e57bf50f79ae

            SHA512

            620c112ec0d1887c2ca9b744d6318d556cade005bd56a643aadd6719e8b0bfd4cd4a9504fc497c53b68580e729d752a04fa4f9e071d30f8478b24ce7d28464f2

          • C:\Windows\SysWOW64\nethtsrv.exe

            Filesize

            176KB

            MD5

            7c93892f87a05f4fba5d373f8b09f5ae

            SHA1

            9a5f2edf594c0186c7417c3744a7bd26d6fbe1b3

            SHA256

            21b70a694342ff98f706a1ad4c9599a813b25d17192bcdd97ed9e57bf50f79ae

            SHA512

            620c112ec0d1887c2ca9b744d6318d556cade005bd56a643aadd6719e8b0bfd4cd4a9504fc497c53b68580e729d752a04fa4f9e071d30f8478b24ce7d28464f2

          • C:\Windows\SysWOW64\nethtsrv.exe

            Filesize

            176KB

            MD5

            7c93892f87a05f4fba5d373f8b09f5ae

            SHA1

            9a5f2edf594c0186c7417c3744a7bd26d6fbe1b3

            SHA256

            21b70a694342ff98f706a1ad4c9599a813b25d17192bcdd97ed9e57bf50f79ae

            SHA512

            620c112ec0d1887c2ca9b744d6318d556cade005bd56a643aadd6719e8b0bfd4cd4a9504fc497c53b68580e729d752a04fa4f9e071d30f8478b24ce7d28464f2

          • C:\Windows\SysWOW64\netupdsrv.exe

            Filesize

            159KB

            MD5

            1bdcde1ba78664781ea03b17422e9223

            SHA1

            648e9cc4d3ae93ca45e0fe19c9c6afa243c7b9a2

            SHA256

            d1d0db8fd0da3d85b615aa40abc8b243ff68db8331e46e28ca5002e0048d8c71

            SHA512

            dc4528592aaeac5201d81c1522642798447edab43fe19094b785e1d8cfa6b9cbb33277c86b3a1c69d2c00276fe392dda685bfc8bbc0c548f11df081f889fc4f5

          • C:\Windows\SysWOW64\netupdsrv.exe

            Filesize

            159KB

            MD5

            1bdcde1ba78664781ea03b17422e9223

            SHA1

            648e9cc4d3ae93ca45e0fe19c9c6afa243c7b9a2

            SHA256

            d1d0db8fd0da3d85b615aa40abc8b243ff68db8331e46e28ca5002e0048d8c71

            SHA512

            dc4528592aaeac5201d81c1522642798447edab43fe19094b785e1d8cfa6b9cbb33277c86b3a1c69d2c00276fe392dda685bfc8bbc0c548f11df081f889fc4f5

          • C:\Windows\SysWOW64\netupdsrv.exe

            Filesize

            159KB

            MD5

            1bdcde1ba78664781ea03b17422e9223

            SHA1

            648e9cc4d3ae93ca45e0fe19c9c6afa243c7b9a2

            SHA256

            d1d0db8fd0da3d85b615aa40abc8b243ff68db8331e46e28ca5002e0048d8c71

            SHA512

            dc4528592aaeac5201d81c1522642798447edab43fe19094b785e1d8cfa6b9cbb33277c86b3a1c69d2c00276fe392dda685bfc8bbc0c548f11df081f889fc4f5

          • memory/220-141-0x0000000000000000-mapping.dmp

          • memory/1564-137-0x0000000000360000-0x00000000007BE000-memory.dmp

            Filesize

            4.4MB

          • memory/1564-168-0x0000000000360000-0x00000000007BE000-memory.dmp

            Filesize

            4.4MB

          • memory/1972-165-0x0000000000000000-mapping.dmp

          • memory/2256-153-0x0000000000000000-mapping.dmp

          • memory/3396-159-0x0000000000000000-mapping.dmp

          • memory/3640-147-0x0000000000000000-mapping.dmp

          • memory/3676-136-0x0000000000000000-mapping.dmp

          • memory/3712-135-0x0000000000000000-mapping.dmp

          • memory/3988-140-0x0000000000000000-mapping.dmp

          • memory/4036-158-0x0000000000000000-mapping.dmp

          • memory/4412-142-0x0000000000000000-mapping.dmp

          • memory/5080-166-0x0000000000000000-mapping.dmp