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 10:18

General

  • Target

    9be9440b0099aaf9220dcee7b5b8e9710698e6b956e1be2a3886b1d9d36455b9.exe

  • Size

    602KB

  • MD5

    b7bf05df957f49b1aa426ac659283e6d

  • SHA1

    c9fe9e62422b7e1471c991b1a1ed5bd5d7f0d98a

  • SHA256

    9be9440b0099aaf9220dcee7b5b8e9710698e6b956e1be2a3886b1d9d36455b9

  • SHA512

    cd877ad5221a176ec40928e87e0a2492e7ed4c72f87e198c6dae6ba2fa02827315f3e449a3c53f01983c19a7815e4f1d5a022778681b3aed5ffe5102426fa070

  • SSDEEP

    12288:uIny5DYTkIJWpx3OOOqW5lfA+kA+rSyijkgDKz3A5:wUTkKWDeOiFAPtlKkgQw5

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\9be9440b0099aaf9220dcee7b5b8e9710698e6b956e1be2a3886b1d9d36455b9.exe
    "C:\Users\Admin\AppData\Local\Temp\9be9440b0099aaf9220dcee7b5b8e9710698e6b956e1be2a3886b1d9d36455b9.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:3916
    • C:\Windows\SysWOW64\net.exe
      net stop nethttpservice
      2⤵
      • Suspicious use of WriteProcessMemory
      PID:2200
      • C:\Windows\SysWOW64\net1.exe
        C:\Windows\system32\net1 stop nethttpservice
        3⤵
          PID:748
      • C:\Windows\SysWOW64\net.exe
        net stop serviceupdater
        2⤵
        • Suspicious use of WriteProcessMemory
        PID:4384
        • C:\Windows\SysWOW64\net1.exe
          C:\Windows\system32\net1 stop serviceupdater
          3⤵
            PID:1092
        • C:\Windows\SysWOW64\installd.exe
          "C:\Windows\system32\installd.exe" nethfdrv
          2⤵
          • Executes dropped EXE
          • Loads dropped DLL
          PID:4052
        • C:\Windows\SysWOW64\nethtsrv.exe
          "C:\Windows\system32\nethtsrv.exe" -nfdi
          2⤵
          • Executes dropped EXE
          • Loads dropped DLL
          PID:4312
        • C:\Windows\SysWOW64\netupdsrv.exe
          "C:\Windows\system32\netupdsrv.exe" -nfdi
          2⤵
          • Executes dropped EXE
          PID:4584
        • C:\Windows\SysWOW64\net.exe
          net start nethttpservice
          2⤵
          • Suspicious use of WriteProcessMemory
          PID:2292
          • C:\Windows\SysWOW64\net1.exe
            C:\Windows\system32\net1 start nethttpservice
            3⤵
              PID:2316
          • C:\Windows\SysWOW64\net.exe
            net start serviceupdater
            2⤵
            • Suspicious use of WriteProcessMemory
            PID:3548
            • C:\Windows\SysWOW64\net1.exe
              C:\Windows\system32\net1 start serviceupdater
              3⤵
                PID:5084
          • 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:2264
          • C:\Windows\SysWOW64\netupdsrv.exe
            C:\Windows\SysWOW64\netupdsrv.exe
            1⤵
            • Executes dropped EXE
            PID:4984

          Network

          MITRE ATT&CK Enterprise v6

          Replay Monitor

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          Downloads

          • C:\Users\Admin\AppData\Local\Temp\nsjEC89.tmp\System.dll

            Filesize

            11KB

            MD5

            c17103ae9072a06da581dec998343fc1

            SHA1

            b72148c6bdfaada8b8c3f950e610ee7cf1da1f8d

            SHA256

            dc58d8ad81cacb0c1ed72e33bff8f23ea40b5252b5bb55d393a0903e6819ae2f

            SHA512

            d32a71aaef18e993f28096d536e41c4d016850721b31171513ce28bbd805a54fd290b7c3e9d935f72e676a1acfb4f0dcc89d95040a0dd29f2b6975855c18986f

          • C:\Users\Admin\AppData\Local\Temp\nsjEC89.tmp\nsExec.dll

            Filesize

            6KB

            MD5

            acc2b699edfea5bf5aae45aba3a41e96

            SHA1

            d2accf4d494e43ceb2cff69abe4dd17147d29cc2

            SHA256

            168a974eaa3f588d759db3f47c1a9fdc3494ba1fa1a73a84e5e3b2a4d58abd7e

            SHA512

            e29ea10ada98c71a18273b04f44f385b120d4e8473e441ce5748cfa44a23648814f2656f429b85440157988c88de776c6ac008dc38bf09cbb746c230a46c69fe

          • C:\Users\Admin\AppData\Local\Temp\nsjEC89.tmp\nsExec.dll

            Filesize

            6KB

            MD5

            acc2b699edfea5bf5aae45aba3a41e96

            SHA1

            d2accf4d494e43ceb2cff69abe4dd17147d29cc2

            SHA256

            168a974eaa3f588d759db3f47c1a9fdc3494ba1fa1a73a84e5e3b2a4d58abd7e

            SHA512

            e29ea10ada98c71a18273b04f44f385b120d4e8473e441ce5748cfa44a23648814f2656f429b85440157988c88de776c6ac008dc38bf09cbb746c230a46c69fe

          • C:\Users\Admin\AppData\Local\Temp\nsjEC89.tmp\nsExec.dll

            Filesize

            6KB

            MD5

            acc2b699edfea5bf5aae45aba3a41e96

            SHA1

            d2accf4d494e43ceb2cff69abe4dd17147d29cc2

            SHA256

            168a974eaa3f588d759db3f47c1a9fdc3494ba1fa1a73a84e5e3b2a4d58abd7e

            SHA512

            e29ea10ada98c71a18273b04f44f385b120d4e8473e441ce5748cfa44a23648814f2656f429b85440157988c88de776c6ac008dc38bf09cbb746c230a46c69fe

          • C:\Users\Admin\AppData\Local\Temp\nsjEC89.tmp\nsExec.dll

            Filesize

            6KB

            MD5

            acc2b699edfea5bf5aae45aba3a41e96

            SHA1

            d2accf4d494e43ceb2cff69abe4dd17147d29cc2

            SHA256

            168a974eaa3f588d759db3f47c1a9fdc3494ba1fa1a73a84e5e3b2a4d58abd7e

            SHA512

            e29ea10ada98c71a18273b04f44f385b120d4e8473e441ce5748cfa44a23648814f2656f429b85440157988c88de776c6ac008dc38bf09cbb746c230a46c69fe

          • C:\Users\Admin\AppData\Local\Temp\nsjEC89.tmp\nsExec.dll

            Filesize

            6KB

            MD5

            acc2b699edfea5bf5aae45aba3a41e96

            SHA1

            d2accf4d494e43ceb2cff69abe4dd17147d29cc2

            SHA256

            168a974eaa3f588d759db3f47c1a9fdc3494ba1fa1a73a84e5e3b2a4d58abd7e

            SHA512

            e29ea10ada98c71a18273b04f44f385b120d4e8473e441ce5748cfa44a23648814f2656f429b85440157988c88de776c6ac008dc38bf09cbb746c230a46c69fe

          • C:\Users\Admin\AppData\Local\Temp\nsjEC89.tmp\nsExec.dll

            Filesize

            6KB

            MD5

            acc2b699edfea5bf5aae45aba3a41e96

            SHA1

            d2accf4d494e43ceb2cff69abe4dd17147d29cc2

            SHA256

            168a974eaa3f588d759db3f47c1a9fdc3494ba1fa1a73a84e5e3b2a4d58abd7e

            SHA512

            e29ea10ada98c71a18273b04f44f385b120d4e8473e441ce5748cfa44a23648814f2656f429b85440157988c88de776c6ac008dc38bf09cbb746c230a46c69fe

          • C:\Users\Admin\AppData\Local\Temp\nsjEC89.tmp\nsExec.dll

            Filesize

            6KB

            MD5

            acc2b699edfea5bf5aae45aba3a41e96

            SHA1

            d2accf4d494e43ceb2cff69abe4dd17147d29cc2

            SHA256

            168a974eaa3f588d759db3f47c1a9fdc3494ba1fa1a73a84e5e3b2a4d58abd7e

            SHA512

            e29ea10ada98c71a18273b04f44f385b120d4e8473e441ce5748cfa44a23648814f2656f429b85440157988c88de776c6ac008dc38bf09cbb746c230a46c69fe

          • C:\Users\Admin\AppData\Local\Temp\nsjEC89.tmp\nsExec.dll

            Filesize

            6KB

            MD5

            acc2b699edfea5bf5aae45aba3a41e96

            SHA1

            d2accf4d494e43ceb2cff69abe4dd17147d29cc2

            SHA256

            168a974eaa3f588d759db3f47c1a9fdc3494ba1fa1a73a84e5e3b2a4d58abd7e

            SHA512

            e29ea10ada98c71a18273b04f44f385b120d4e8473e441ce5748cfa44a23648814f2656f429b85440157988c88de776c6ac008dc38bf09cbb746c230a46c69fe

          • C:\Windows\SysWOW64\hfnapi.dll

            Filesize

            106KB

            MD5

            68c67b38c601ddba23fa7f41d666b971

            SHA1

            e2c2228011947d4a09492699ee5f4fe78f2a54ed

            SHA256

            fc3ee8bf55d48f2dc2bb82e08341deb5d45976588b93ecc319ba2c350fa121fc

            SHA512

            a72f5a950ce0f0edeb855d82efa98d908f7707a9ed471a5ebdf52b1f1b31250fbcfc63a207eec068f4bd0b6abcf17eec206b59f371a9ce33c3652e41d2db150f

          • C:\Windows\SysWOW64\hfnapi.dll

            Filesize

            106KB

            MD5

            68c67b38c601ddba23fa7f41d666b971

            SHA1

            e2c2228011947d4a09492699ee5f4fe78f2a54ed

            SHA256

            fc3ee8bf55d48f2dc2bb82e08341deb5d45976588b93ecc319ba2c350fa121fc

            SHA512

            a72f5a950ce0f0edeb855d82efa98d908f7707a9ed471a5ebdf52b1f1b31250fbcfc63a207eec068f4bd0b6abcf17eec206b59f371a9ce33c3652e41d2db150f

          • C:\Windows\SysWOW64\hfnapi.dll

            Filesize

            106KB

            MD5

            68c67b38c601ddba23fa7f41d666b971

            SHA1

            e2c2228011947d4a09492699ee5f4fe78f2a54ed

            SHA256

            fc3ee8bf55d48f2dc2bb82e08341deb5d45976588b93ecc319ba2c350fa121fc

            SHA512

            a72f5a950ce0f0edeb855d82efa98d908f7707a9ed471a5ebdf52b1f1b31250fbcfc63a207eec068f4bd0b6abcf17eec206b59f371a9ce33c3652e41d2db150f

          • C:\Windows\SysWOW64\hfnapi.dll

            Filesize

            106KB

            MD5

            68c67b38c601ddba23fa7f41d666b971

            SHA1

            e2c2228011947d4a09492699ee5f4fe78f2a54ed

            SHA256

            fc3ee8bf55d48f2dc2bb82e08341deb5d45976588b93ecc319ba2c350fa121fc

            SHA512

            a72f5a950ce0f0edeb855d82efa98d908f7707a9ed471a5ebdf52b1f1b31250fbcfc63a207eec068f4bd0b6abcf17eec206b59f371a9ce33c3652e41d2db150f

          • C:\Windows\SysWOW64\hfpapi.dll

            Filesize

            244KB

            MD5

            47f2c5a045ea4e0bfe7179007f8b5a06

            SHA1

            bb41104f30a8bbcc8d71bb6d5866eed13dc0866a

            SHA256

            e34f8585d4b34f5399cc30e3212f686c859d99251908f8b8946bfab4cb893315

            SHA512

            3d7cc1ebd4d901fb3e2a82e951792ea1ba1edca2f9bffb6efe70942165fb77804ac49aa00ef35595e42cb9acb097e0a86fc1fe7f9f80a422bfd0a31c446c25d4

          • C:\Windows\SysWOW64\hfpapi.dll

            Filesize

            244KB

            MD5

            47f2c5a045ea4e0bfe7179007f8b5a06

            SHA1

            bb41104f30a8bbcc8d71bb6d5866eed13dc0866a

            SHA256

            e34f8585d4b34f5399cc30e3212f686c859d99251908f8b8946bfab4cb893315

            SHA512

            3d7cc1ebd4d901fb3e2a82e951792ea1ba1edca2f9bffb6efe70942165fb77804ac49aa00ef35595e42cb9acb097e0a86fc1fe7f9f80a422bfd0a31c446c25d4

          • C:\Windows\SysWOW64\hfpapi.dll

            Filesize

            244KB

            MD5

            47f2c5a045ea4e0bfe7179007f8b5a06

            SHA1

            bb41104f30a8bbcc8d71bb6d5866eed13dc0866a

            SHA256

            e34f8585d4b34f5399cc30e3212f686c859d99251908f8b8946bfab4cb893315

            SHA512

            3d7cc1ebd4d901fb3e2a82e951792ea1ba1edca2f9bffb6efe70942165fb77804ac49aa00ef35595e42cb9acb097e0a86fc1fe7f9f80a422bfd0a31c446c25d4

          • C:\Windows\SysWOW64\installd.exe

            Filesize

            108KB

            MD5

            5a7d01392c7ba94a637ffd838a4247b1

            SHA1

            a500747e94bb81f6dc48c2be71fa559c671ef881

            SHA256

            5a186ce7127114402f021fb98a9ba58a6ba37125bf824f99e35fd05f04c94467

            SHA512

            92a16910e9f5f47236b1479f26115771d9e04af9e5854689eaddbf01e18996a816ca9137bca0d21f973d5a26455910cbcb4f7b1820b6a0bd6bbed67316f5b537

          • C:\Windows\SysWOW64\installd.exe

            Filesize

            108KB

            MD5

            5a7d01392c7ba94a637ffd838a4247b1

            SHA1

            a500747e94bb81f6dc48c2be71fa559c671ef881

            SHA256

            5a186ce7127114402f021fb98a9ba58a6ba37125bf824f99e35fd05f04c94467

            SHA512

            92a16910e9f5f47236b1479f26115771d9e04af9e5854689eaddbf01e18996a816ca9137bca0d21f973d5a26455910cbcb4f7b1820b6a0bd6bbed67316f5b537

          • C:\Windows\SysWOW64\nethtsrv.exe

            Filesize

            176KB

            MD5

            1509b13de0cc28bf9e03eeb343c37eaa

            SHA1

            23704e689b59e77dc9c285365a6554274b65a9e9

            SHA256

            152ab405176e437aead34d6b14c07cc9d52c672c403a535edd88c44ec04c5f22

            SHA512

            9be58f697805611c2268a39c288312c5f1392a4c44c347d18b6055030cece0819b95d2780cac8419e2fcceea161a33ead88aa2965ed008a5705af4960343ec85

          • C:\Windows\SysWOW64\nethtsrv.exe

            Filesize

            176KB

            MD5

            1509b13de0cc28bf9e03eeb343c37eaa

            SHA1

            23704e689b59e77dc9c285365a6554274b65a9e9

            SHA256

            152ab405176e437aead34d6b14c07cc9d52c672c403a535edd88c44ec04c5f22

            SHA512

            9be58f697805611c2268a39c288312c5f1392a4c44c347d18b6055030cece0819b95d2780cac8419e2fcceea161a33ead88aa2965ed008a5705af4960343ec85

          • C:\Windows\SysWOW64\nethtsrv.exe

            Filesize

            176KB

            MD5

            1509b13de0cc28bf9e03eeb343c37eaa

            SHA1

            23704e689b59e77dc9c285365a6554274b65a9e9

            SHA256

            152ab405176e437aead34d6b14c07cc9d52c672c403a535edd88c44ec04c5f22

            SHA512

            9be58f697805611c2268a39c288312c5f1392a4c44c347d18b6055030cece0819b95d2780cac8419e2fcceea161a33ead88aa2965ed008a5705af4960343ec85

          • C:\Windows\SysWOW64\netupdsrv.exe

            Filesize

            158KB

            MD5

            034ad53900d19767a4ce41dc1d88b752

            SHA1

            24ea6226f5a4fcc578749489e8d5b052fa14c740

            SHA256

            a7af318ee8f690117499ff49a71fc90b8698cbe6de533b4c3f03ce9bfb2fbb5e

            SHA512

            dd82b6723e39aab9999212fd7edbbbb73263c1d7c4c710b0b07b8292f061d398e88b0be5d30bc2d5d16da10baa2ca954c63a5e9c1121c6f0629c419e7b034d86

          • C:\Windows\SysWOW64\netupdsrv.exe

            Filesize

            158KB

            MD5

            034ad53900d19767a4ce41dc1d88b752

            SHA1

            24ea6226f5a4fcc578749489e8d5b052fa14c740

            SHA256

            a7af318ee8f690117499ff49a71fc90b8698cbe6de533b4c3f03ce9bfb2fbb5e

            SHA512

            dd82b6723e39aab9999212fd7edbbbb73263c1d7c4c710b0b07b8292f061d398e88b0be5d30bc2d5d16da10baa2ca954c63a5e9c1121c6f0629c419e7b034d86

          • C:\Windows\SysWOW64\netupdsrv.exe

            Filesize

            158KB

            MD5

            034ad53900d19767a4ce41dc1d88b752

            SHA1

            24ea6226f5a4fcc578749489e8d5b052fa14c740

            SHA256

            a7af318ee8f690117499ff49a71fc90b8698cbe6de533b4c3f03ce9bfb2fbb5e

            SHA512

            dd82b6723e39aab9999212fd7edbbbb73263c1d7c4c710b0b07b8292f061d398e88b0be5d30bc2d5d16da10baa2ca954c63a5e9c1121c6f0629c419e7b034d86

          • memory/748-137-0x0000000000000000-mapping.dmp

          • memory/1092-141-0x0000000000000000-mapping.dmp

          • memory/2200-135-0x0000000000000000-mapping.dmp

          • memory/2292-158-0x0000000000000000-mapping.dmp

          • memory/2316-159-0x0000000000000000-mapping.dmp

          • memory/3548-165-0x0000000000000000-mapping.dmp

          • memory/3916-136-0x0000000000360000-0x00000000007BE000-memory.dmp

            Filesize

            4.4MB

          • memory/3916-168-0x0000000000360000-0x00000000007BE000-memory.dmp

            Filesize

            4.4MB

          • memory/4052-142-0x0000000000000000-mapping.dmp

          • memory/4312-147-0x0000000000000000-mapping.dmp

          • memory/4384-140-0x0000000000000000-mapping.dmp

          • memory/4584-153-0x0000000000000000-mapping.dmp

          • memory/5084-166-0x0000000000000000-mapping.dmp