Analysis

  • max time kernel
    91s
  • max time network
    157s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20220901-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20220901-enlocale:en-usos:windows10-2004-x64system
  • submitted
    24/11/2022, 06:09

General

  • Target

    bddd13255da2800e78412ec475e350e36f469086c9b6e39a4b5546befe94fb7a.exe

  • Size

    675KB

  • MD5

    51738b8a4823b0e494add57169a078b9

  • SHA1

    57aac8f87a6b6790d5056e0ce5ee282bd15506c1

  • SHA256

    bddd13255da2800e78412ec475e350e36f469086c9b6e39a4b5546befe94fb7a

  • SHA512

    c3a0a3e09025312581f7d32df8e61e6c682d1ace59022cb3af7a70c75671bf98b925e19aea7638545f58cabdddab2f8b0c6b776fadcaa296a79be4a286985743

  • SSDEEP

    12288:Bdgmy6lZ8E9soPvow2bfzJjxjPKm9LEfAKlzqA6IVk4t6vpFzUujrqXX07O5l9:BdgX6tTLafFjFxREYID6mXX0w

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\bddd13255da2800e78412ec475e350e36f469086c9b6e39a4b5546befe94fb7a.exe
    "C:\Users\Admin\AppData\Local\Temp\bddd13255da2800e78412ec475e350e36f469086c9b6e39a4b5546befe94fb7a.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:4992
    • C:\Windows\SysWOW64\net.exe
      net stop nethttpservice
      2⤵
      • Suspicious use of WriteProcessMemory
      PID:3588
      • C:\Windows\SysWOW64\net1.exe
        C:\Windows\system32\net1 stop nethttpservice
        3⤵
          PID:5088
      • C:\Windows\SysWOW64\net.exe
        net stop serviceupdater
        2⤵
        • Suspicious use of WriteProcessMemory
        PID:3624
        • C:\Windows\SysWOW64\net1.exe
          C:\Windows\system32\net1 stop serviceupdater
          3⤵
            PID:2292
        • C:\Windows\SysWOW64\installd.exe
          "C:\Windows\system32\installd.exe" nethfdrv
          2⤵
          • Executes dropped EXE
          • Loads dropped DLL
          PID:2724
        • C:\Windows\SysWOW64\nethtsrv.exe
          "C:\Windows\system32\nethtsrv.exe" -nfdi
          2⤵
          • Executes dropped EXE
          • Loads dropped DLL
          PID:2392
        • C:\Windows\SysWOW64\netupdsrv.exe
          "C:\Windows\system32\netupdsrv.exe" -nfdi
          2⤵
          • Executes dropped EXE
          PID:4244
        • C:\Windows\SysWOW64\net.exe
          net start nethttpservice
          2⤵
          • Suspicious use of WriteProcessMemory
          PID:3324
          • C:\Windows\SysWOW64\net1.exe
            C:\Windows\system32\net1 start nethttpservice
            3⤵
              PID:1964
          • C:\Windows\SysWOW64\net.exe
            net start serviceupdater
            2⤵
            • Suspicious use of WriteProcessMemory
            PID:3608
            • C:\Windows\SysWOW64\net1.exe
              C:\Windows\system32\net1 start serviceupdater
              3⤵
                PID:392
          • 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:4548
          • C:\Windows\SysWOW64\netupdsrv.exe
            C:\Windows\SysWOW64\netupdsrv.exe
            1⤵
            • Executes dropped EXE
            PID:3068

          Network

          MITRE ATT&CK Enterprise v6

          Replay Monitor

          Loading Replay Monitor...

          Downloads

          • C:\Users\Admin\AppData\Local\Temp\nstC49F.tmp\System.dll

            Filesize

            11KB

            MD5

            c17103ae9072a06da581dec998343fc1

            SHA1

            b72148c6bdfaada8b8c3f950e610ee7cf1da1f8d

            SHA256

            dc58d8ad81cacb0c1ed72e33bff8f23ea40b5252b5bb55d393a0903e6819ae2f

            SHA512

            d32a71aaef18e993f28096d536e41c4d016850721b31171513ce28bbd805a54fd290b7c3e9d935f72e676a1acfb4f0dcc89d95040a0dd29f2b6975855c18986f

          • C:\Users\Admin\AppData\Local\Temp\nstC49F.tmp\nsExec.dll

            Filesize

            6KB

            MD5

            acc2b699edfea5bf5aae45aba3a41e96

            SHA1

            d2accf4d494e43ceb2cff69abe4dd17147d29cc2

            SHA256

            168a974eaa3f588d759db3f47c1a9fdc3494ba1fa1a73a84e5e3b2a4d58abd7e

            SHA512

            e29ea10ada98c71a18273b04f44f385b120d4e8473e441ce5748cfa44a23648814f2656f429b85440157988c88de776c6ac008dc38bf09cbb746c230a46c69fe

          • C:\Users\Admin\AppData\Local\Temp\nstC49F.tmp\nsExec.dll

            Filesize

            6KB

            MD5

            acc2b699edfea5bf5aae45aba3a41e96

            SHA1

            d2accf4d494e43ceb2cff69abe4dd17147d29cc2

            SHA256

            168a974eaa3f588d759db3f47c1a9fdc3494ba1fa1a73a84e5e3b2a4d58abd7e

            SHA512

            e29ea10ada98c71a18273b04f44f385b120d4e8473e441ce5748cfa44a23648814f2656f429b85440157988c88de776c6ac008dc38bf09cbb746c230a46c69fe

          • C:\Users\Admin\AppData\Local\Temp\nstC49F.tmp\nsExec.dll

            Filesize

            6KB

            MD5

            acc2b699edfea5bf5aae45aba3a41e96

            SHA1

            d2accf4d494e43ceb2cff69abe4dd17147d29cc2

            SHA256

            168a974eaa3f588d759db3f47c1a9fdc3494ba1fa1a73a84e5e3b2a4d58abd7e

            SHA512

            e29ea10ada98c71a18273b04f44f385b120d4e8473e441ce5748cfa44a23648814f2656f429b85440157988c88de776c6ac008dc38bf09cbb746c230a46c69fe

          • C:\Users\Admin\AppData\Local\Temp\nstC49F.tmp\nsExec.dll

            Filesize

            6KB

            MD5

            acc2b699edfea5bf5aae45aba3a41e96

            SHA1

            d2accf4d494e43ceb2cff69abe4dd17147d29cc2

            SHA256

            168a974eaa3f588d759db3f47c1a9fdc3494ba1fa1a73a84e5e3b2a4d58abd7e

            SHA512

            e29ea10ada98c71a18273b04f44f385b120d4e8473e441ce5748cfa44a23648814f2656f429b85440157988c88de776c6ac008dc38bf09cbb746c230a46c69fe

          • C:\Users\Admin\AppData\Local\Temp\nstC49F.tmp\nsExec.dll

            Filesize

            6KB

            MD5

            acc2b699edfea5bf5aae45aba3a41e96

            SHA1

            d2accf4d494e43ceb2cff69abe4dd17147d29cc2

            SHA256

            168a974eaa3f588d759db3f47c1a9fdc3494ba1fa1a73a84e5e3b2a4d58abd7e

            SHA512

            e29ea10ada98c71a18273b04f44f385b120d4e8473e441ce5748cfa44a23648814f2656f429b85440157988c88de776c6ac008dc38bf09cbb746c230a46c69fe

          • C:\Users\Admin\AppData\Local\Temp\nstC49F.tmp\nsExec.dll

            Filesize

            6KB

            MD5

            acc2b699edfea5bf5aae45aba3a41e96

            SHA1

            d2accf4d494e43ceb2cff69abe4dd17147d29cc2

            SHA256

            168a974eaa3f588d759db3f47c1a9fdc3494ba1fa1a73a84e5e3b2a4d58abd7e

            SHA512

            e29ea10ada98c71a18273b04f44f385b120d4e8473e441ce5748cfa44a23648814f2656f429b85440157988c88de776c6ac008dc38bf09cbb746c230a46c69fe

          • C:\Users\Admin\AppData\Local\Temp\nstC49F.tmp\nsExec.dll

            Filesize

            6KB

            MD5

            acc2b699edfea5bf5aae45aba3a41e96

            SHA1

            d2accf4d494e43ceb2cff69abe4dd17147d29cc2

            SHA256

            168a974eaa3f588d759db3f47c1a9fdc3494ba1fa1a73a84e5e3b2a4d58abd7e

            SHA512

            e29ea10ada98c71a18273b04f44f385b120d4e8473e441ce5748cfa44a23648814f2656f429b85440157988c88de776c6ac008dc38bf09cbb746c230a46c69fe

          • C:\Users\Admin\AppData\Local\Temp\nstC49F.tmp\nsExec.dll

            Filesize

            6KB

            MD5

            acc2b699edfea5bf5aae45aba3a41e96

            SHA1

            d2accf4d494e43ceb2cff69abe4dd17147d29cc2

            SHA256

            168a974eaa3f588d759db3f47c1a9fdc3494ba1fa1a73a84e5e3b2a4d58abd7e

            SHA512

            e29ea10ada98c71a18273b04f44f385b120d4e8473e441ce5748cfa44a23648814f2656f429b85440157988c88de776c6ac008dc38bf09cbb746c230a46c69fe

          • C:\Windows\SysWOW64\hfnapi.dll

            Filesize

            106KB

            MD5

            ea5830f3b235117bf3197fb1499595fe

            SHA1

            a942129351450120f063778f0404d8097f074bcc

            SHA256

            2fb1634aef6f94f45e2c10927177d5fd6b1e1dfd4fe934e63f094a092abc727f

            SHA512

            5381c386208101e4addb8b2491dfb68223eb0e09e531386d0904b8df8c03bc1fb9174a13182124bbe5dfa02de64bccdbedd171006eae2060e6171863b0f57f21

          • C:\Windows\SysWOW64\hfnapi.dll

            Filesize

            106KB

            MD5

            ea5830f3b235117bf3197fb1499595fe

            SHA1

            a942129351450120f063778f0404d8097f074bcc

            SHA256

            2fb1634aef6f94f45e2c10927177d5fd6b1e1dfd4fe934e63f094a092abc727f

            SHA512

            5381c386208101e4addb8b2491dfb68223eb0e09e531386d0904b8df8c03bc1fb9174a13182124bbe5dfa02de64bccdbedd171006eae2060e6171863b0f57f21

          • C:\Windows\SysWOW64\hfnapi.dll

            Filesize

            106KB

            MD5

            ea5830f3b235117bf3197fb1499595fe

            SHA1

            a942129351450120f063778f0404d8097f074bcc

            SHA256

            2fb1634aef6f94f45e2c10927177d5fd6b1e1dfd4fe934e63f094a092abc727f

            SHA512

            5381c386208101e4addb8b2491dfb68223eb0e09e531386d0904b8df8c03bc1fb9174a13182124bbe5dfa02de64bccdbedd171006eae2060e6171863b0f57f21

          • C:\Windows\SysWOW64\hfnapi.dll

            Filesize

            106KB

            MD5

            ea5830f3b235117bf3197fb1499595fe

            SHA1

            a942129351450120f063778f0404d8097f074bcc

            SHA256

            2fb1634aef6f94f45e2c10927177d5fd6b1e1dfd4fe934e63f094a092abc727f

            SHA512

            5381c386208101e4addb8b2491dfb68223eb0e09e531386d0904b8df8c03bc1fb9174a13182124bbe5dfa02de64bccdbedd171006eae2060e6171863b0f57f21

          • C:\Windows\SysWOW64\hfpapi.dll

            Filesize

            244KB

            MD5

            e8902ce40bd7919de3fb72fd088c8c8d

            SHA1

            d612ab2343770584908e47d395169697e29d387e

            SHA256

            f9ade3295b4ab9617cba9bb7ee40237775edd1f5c8969c03675f38cb4f9b5c44

            SHA512

            2adaf5358321a1ea1f609256d0eb5830a38596bda7fc55fae8ab0d88c62b92a5727f022cb64a8e784a5b73312594fa632372d250a7331166de30b57bc154fcc1

          • C:\Windows\SysWOW64\hfpapi.dll

            Filesize

            244KB

            MD5

            e8902ce40bd7919de3fb72fd088c8c8d

            SHA1

            d612ab2343770584908e47d395169697e29d387e

            SHA256

            f9ade3295b4ab9617cba9bb7ee40237775edd1f5c8969c03675f38cb4f9b5c44

            SHA512

            2adaf5358321a1ea1f609256d0eb5830a38596bda7fc55fae8ab0d88c62b92a5727f022cb64a8e784a5b73312594fa632372d250a7331166de30b57bc154fcc1

          • C:\Windows\SysWOW64\hfpapi.dll

            Filesize

            244KB

            MD5

            e8902ce40bd7919de3fb72fd088c8c8d

            SHA1

            d612ab2343770584908e47d395169697e29d387e

            SHA256

            f9ade3295b4ab9617cba9bb7ee40237775edd1f5c8969c03675f38cb4f9b5c44

            SHA512

            2adaf5358321a1ea1f609256d0eb5830a38596bda7fc55fae8ab0d88c62b92a5727f022cb64a8e784a5b73312594fa632372d250a7331166de30b57bc154fcc1

          • C:\Windows\SysWOW64\installd.exe

            Filesize

            108KB

            MD5

            252061f2119906dfe328b9892d65162d

            SHA1

            0a67a2e66fddea4b30555ef37955ac5c9532beb6

            SHA256

            36f0335c25a27daa025e0414e3cbbbbf3bce4413d3b1c87ed1d56b7a6229b2bb

            SHA512

            f08b24ca53b3dcbad827c5cbc0a022b141e615a96058176747d18efcbd72fb76b91aa2db95d45542e3e98dd15865c124cc1b859361c7f005c63e50632472d7f6

          • C:\Windows\SysWOW64\installd.exe

            Filesize

            108KB

            MD5

            252061f2119906dfe328b9892d65162d

            SHA1

            0a67a2e66fddea4b30555ef37955ac5c9532beb6

            SHA256

            36f0335c25a27daa025e0414e3cbbbbf3bce4413d3b1c87ed1d56b7a6229b2bb

            SHA512

            f08b24ca53b3dcbad827c5cbc0a022b141e615a96058176747d18efcbd72fb76b91aa2db95d45542e3e98dd15865c124cc1b859361c7f005c63e50632472d7f6

          • C:\Windows\SysWOW64\nethtsrv.exe

            Filesize

            176KB

            MD5

            008731b23d0f465effc0a7e2d15c2f0b

            SHA1

            413db00134bd5b9691298444eb35f8fd7af1664b

            SHA256

            f8ab2d745419655936dbcf31d6c18efdf5c3b4f4b875c3993f9f57bccd3a1549

            SHA512

            2a659aabd794160451e5f47d5d89cf332e281a8879f00043509f0b46bc3740f7248380115b1b5c4d44f846b9465c66f8e7d54f8d0d6e62a459ca3b7ca8831419

          • C:\Windows\SysWOW64\nethtsrv.exe

            Filesize

            176KB

            MD5

            008731b23d0f465effc0a7e2d15c2f0b

            SHA1

            413db00134bd5b9691298444eb35f8fd7af1664b

            SHA256

            f8ab2d745419655936dbcf31d6c18efdf5c3b4f4b875c3993f9f57bccd3a1549

            SHA512

            2a659aabd794160451e5f47d5d89cf332e281a8879f00043509f0b46bc3740f7248380115b1b5c4d44f846b9465c66f8e7d54f8d0d6e62a459ca3b7ca8831419

          • C:\Windows\SysWOW64\nethtsrv.exe

            Filesize

            176KB

            MD5

            008731b23d0f465effc0a7e2d15c2f0b

            SHA1

            413db00134bd5b9691298444eb35f8fd7af1664b

            SHA256

            f8ab2d745419655936dbcf31d6c18efdf5c3b4f4b875c3993f9f57bccd3a1549

            SHA512

            2a659aabd794160451e5f47d5d89cf332e281a8879f00043509f0b46bc3740f7248380115b1b5c4d44f846b9465c66f8e7d54f8d0d6e62a459ca3b7ca8831419

          • C:\Windows\SysWOW64\netupdsrv.exe

            Filesize

            158KB

            MD5

            8d0d73b185476484ca076e2f9fb4439e

            SHA1

            75092f2ccc7946cc83358720e9921e9a8b053369

            SHA256

            f34272c64632209fe10fc03bf67963dfca37903e361392c3bfceaca48a82b522

            SHA512

            330c4d077a4cebef80ca9b3f83f8c305bd28649f8d117efc3120010583b4f9a67a5c34bc2058bd71ebb488a828156bd57a810f248be0434f2c20c505ba72ad35

          • C:\Windows\SysWOW64\netupdsrv.exe

            Filesize

            158KB

            MD5

            8d0d73b185476484ca076e2f9fb4439e

            SHA1

            75092f2ccc7946cc83358720e9921e9a8b053369

            SHA256

            f34272c64632209fe10fc03bf67963dfca37903e361392c3bfceaca48a82b522

            SHA512

            330c4d077a4cebef80ca9b3f83f8c305bd28649f8d117efc3120010583b4f9a67a5c34bc2058bd71ebb488a828156bd57a810f248be0434f2c20c505ba72ad35

          • C:\Windows\SysWOW64\netupdsrv.exe

            Filesize

            158KB

            MD5

            8d0d73b185476484ca076e2f9fb4439e

            SHA1

            75092f2ccc7946cc83358720e9921e9a8b053369

            SHA256

            f34272c64632209fe10fc03bf67963dfca37903e361392c3bfceaca48a82b522

            SHA512

            330c4d077a4cebef80ca9b3f83f8c305bd28649f8d117efc3120010583b4f9a67a5c34bc2058bd71ebb488a828156bd57a810f248be0434f2c20c505ba72ad35

          • memory/4992-132-0x0000000000350000-0x00000000007BE000-memory.dmp

            Filesize

            4.4MB

          • memory/4992-168-0x0000000000350000-0x00000000007BE000-memory.dmp

            Filesize

            4.4MB