Analysis

  • max time kernel
    45s
  • max time network
    48s
  • platform
    windows7_x64
  • resource
    win7-20220812-en
  • resource tags

    arch:x64arch:x86image:win7-20220812-enlocale:en-usos:windows7-x64system
  • submitted
    23-11-2022 10:18

General

  • Target

    9be8790f00b77afaac49c9556c9016b5dc0a7302db46c958b6baac002cc3c17c.exe

  • Size

    603KB

  • MD5

    8a8e3f998c8a262a9bee5b391f6b2292

  • SHA1

    2fcd5eb5c4d4432d8c210f03139193f3e2abfe1c

  • SHA256

    9be8790f00b77afaac49c9556c9016b5dc0a7302db46c958b6baac002cc3c17c

  • SHA512

    ecdc7b4812fbe4f6b5aa262a3d49ac3b9c547b7c5e4daa719d294e5a0a3924aea8abaf565ae4afbd84dd350637137e9d2762e09e9d8fd203b21331a2c591a891

  • SSDEEP

    12288:KIny5DYTfI/OJsGpR3MExAOrAdbDzkD4LE3z3/SKH:MUTfMOJ5rMBOrQD6Bz3/SKH

Score
8/10

Malware Config

Signatures

  • Drops file in Drivers directory 1 IoCs
  • Executes dropped EXE 5 IoCs
  • Loads dropped DLL 13 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.

  • Runs net.exe
  • Suspicious behavior: LoadsDriver 1 IoCs
  • Suspicious use of AdjustPrivilegeToken 1 IoCs
  • Suspicious use of WriteProcessMemory 50 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\9be8790f00b77afaac49c9556c9016b5dc0a7302db46c958b6baac002cc3c17c.exe
    "C:\Users\Admin\AppData\Local\Temp\9be8790f00b77afaac49c9556c9016b5dc0a7302db46c958b6baac002cc3c17c.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:2020
    • C:\Windows\SysWOW64\net.exe
      net stop nethttpservice
      2⤵
      • Suspicious use of WriteProcessMemory
      PID:932
      • C:\Windows\SysWOW64\net1.exe
        C:\Windows\system32\net1 stop nethttpservice
        3⤵
          PID:1308
      • C:\Windows\SysWOW64\net.exe
        net stop serviceupdater
        2⤵
        • Suspicious use of WriteProcessMemory
        PID:1108
        • C:\Windows\SysWOW64\net1.exe
          C:\Windows\system32\net1 stop serviceupdater
          3⤵
            PID:1104
        • C:\Windows\SysWOW64\installd.exe
          "C:\Windows\system32\installd.exe" nethfdrv
          2⤵
          • Executes dropped EXE
          • Loads dropped DLL
          PID:1200
        • C:\Windows\SysWOW64\nethtsrv.exe
          "C:\Windows\system32\nethtsrv.exe" -nfdi
          2⤵
          • Executes dropped EXE
          • Loads dropped DLL
          PID:820
        • C:\Windows\SysWOW64\netupdsrv.exe
          "C:\Windows\system32\netupdsrv.exe" -nfdi
          2⤵
          • Executes dropped EXE
          PID:1744
        • C:\Windows\SysWOW64\net.exe
          net start nethttpservice
          2⤵
          • Suspicious use of WriteProcessMemory
          PID:1284
          • C:\Windows\SysWOW64\net1.exe
            C:\Windows\system32\net1 start nethttpservice
            3⤵
              PID:1732
          • C:\Windows\SysWOW64\net.exe
            net start serviceupdater
            2⤵
            • Suspicious use of WriteProcessMemory
            PID:1352
            • C:\Windows\SysWOW64\net1.exe
              C:\Windows\system32\net1 start serviceupdater
              3⤵
                PID:1936
          • C:\Windows\SysWOW64\nethtsrv.exe
            C:\Windows\SysWOW64\nethtsrv.exe
            1⤵
            • Executes dropped EXE
            • Loads dropped DLL
            • Suspicious use of AdjustPrivilegeToken
            PID:1624
          • C:\Windows\SysWOW64\netupdsrv.exe
            C:\Windows\SysWOW64\netupdsrv.exe
            1⤵
            • Executes dropped EXE
            PID:1748

          Network

          MITRE ATT&CK Enterprise v6

          Replay Monitor

          Loading Replay Monitor...

          Downloads

          • C:\Windows\SysWOW64\hfnapi.dll

            Filesize

            106KB

            MD5

            b0131451db5497ba010874147e75f4f5

            SHA1

            dafb97f7198fc2959e58f869480ece71ac494979

            SHA256

            7bdd76d007b1c5294211539d7cd838d02627754369ebc579c792281bef771b0e

            SHA512

            f8ccf2ce0c6982bbd23952c0bcb688f9ee73464e517709d51b3742919088a1a2d72407d2d3e28b31a552a86f40af93ba877c97fd20af4b46483c659e2de4e77e

          • C:\Windows\SysWOW64\hfpapi.dll

            Filesize

            244KB

            MD5

            91c5363aa57a25034e237b3a8ea730fc

            SHA1

            b0d8fd4a2a9fe86fd5d858e1589d9fed2ca70aa1

            SHA256

            4860b43696788df24af3af37bcaa4ed09b2ab995094ce4c7f78910e71529abe6

            SHA512

            2f9daf6560ec7504bae25cf5634e2a06bb860295e4aa37415ce108ff5090171de171deb039e9c485ef0a77bc1045ed887f2c83fab4166401bfd3f697ceef2bff

          • C:\Windows\SysWOW64\installd.exe

            Filesize

            108KB

            MD5

            6b57b39e4367b8fad4766c04a633639f

            SHA1

            b25cba36f3adf594a1da4c08209ca94edce0e138

            SHA256

            a808026ed76b5ac0830c779d4a0cf300e09038812e8e30056d1334151d9d31e1

            SHA512

            533f9f6f418a789931cd5386ab80db33d8d77ab03a24ad59d8edf34c25c4fb67a1466b38fccb24d6ccb7d71a4b8b94529b6179a58003ff0f49c2271eb883cccf

          • C:\Windows\SysWOW64\nethtsrv.exe

            Filesize

            176KB

            MD5

            edc7d9f0dffff81453e1ac4baac13d31

            SHA1

            8244a9e58d720f2481d255a8c6889bb3e71f979c

            SHA256

            2c88ab8e7e2d7110bbffd1a53fbda213cce74b9804cc03dd8f468a91b7f58b83

            SHA512

            a7b8852ff61cbcc9c9600c7a749c781bded897fd0b459915db8c18e9bb4ef997c13905389a5e89f1cf3a7227984950bc0ad8756a5fab6278605a286b14eea2c4

          • C:\Windows\SysWOW64\nethtsrv.exe

            Filesize

            176KB

            MD5

            edc7d9f0dffff81453e1ac4baac13d31

            SHA1

            8244a9e58d720f2481d255a8c6889bb3e71f979c

            SHA256

            2c88ab8e7e2d7110bbffd1a53fbda213cce74b9804cc03dd8f468a91b7f58b83

            SHA512

            a7b8852ff61cbcc9c9600c7a749c781bded897fd0b459915db8c18e9bb4ef997c13905389a5e89f1cf3a7227984950bc0ad8756a5fab6278605a286b14eea2c4

          • C:\Windows\SysWOW64\netupdsrv.exe

            Filesize

            158KB

            MD5

            be979894a8c7f21b3c9b68fd4ea498b6

            SHA1

            74130d870832810d2b2ff5cc6cbe46460f58060f

            SHA256

            259e1e5161f32202ea7a01e2e14b5a9c49b4ab7f37abcfc09dbc5606d903f65f

            SHA512

            16b437a20992b85215f694beb7c5b70c5c67fe4c9a0c521412d186ee92bde87219c7309178fc8873785da5003e928c5acd51c6d0641227772f9ec39750bd7ff1

          • C:\Windows\SysWOW64\netupdsrv.exe

            Filesize

            158KB

            MD5

            be979894a8c7f21b3c9b68fd4ea498b6

            SHA1

            74130d870832810d2b2ff5cc6cbe46460f58060f

            SHA256

            259e1e5161f32202ea7a01e2e14b5a9c49b4ab7f37abcfc09dbc5606d903f65f

            SHA512

            16b437a20992b85215f694beb7c5b70c5c67fe4c9a0c521412d186ee92bde87219c7309178fc8873785da5003e928c5acd51c6d0641227772f9ec39750bd7ff1

          • \Users\Admin\AppData\Local\Temp\nstE6D9.tmp\System.dll

            Filesize

            11KB

            MD5

            c17103ae9072a06da581dec998343fc1

            SHA1

            b72148c6bdfaada8b8c3f950e610ee7cf1da1f8d

            SHA256

            dc58d8ad81cacb0c1ed72e33bff8f23ea40b5252b5bb55d393a0903e6819ae2f

            SHA512

            d32a71aaef18e993f28096d536e41c4d016850721b31171513ce28bbd805a54fd290b7c3e9d935f72e676a1acfb4f0dcc89d95040a0dd29f2b6975855c18986f

          • \Users\Admin\AppData\Local\Temp\nstE6D9.tmp\nsExec.dll

            Filesize

            6KB

            MD5

            acc2b699edfea5bf5aae45aba3a41e96

            SHA1

            d2accf4d494e43ceb2cff69abe4dd17147d29cc2

            SHA256

            168a974eaa3f588d759db3f47c1a9fdc3494ba1fa1a73a84e5e3b2a4d58abd7e

            SHA512

            e29ea10ada98c71a18273b04f44f385b120d4e8473e441ce5748cfa44a23648814f2656f429b85440157988c88de776c6ac008dc38bf09cbb746c230a46c69fe

          • \Users\Admin\AppData\Local\Temp\nstE6D9.tmp\nsExec.dll

            Filesize

            6KB

            MD5

            acc2b699edfea5bf5aae45aba3a41e96

            SHA1

            d2accf4d494e43ceb2cff69abe4dd17147d29cc2

            SHA256

            168a974eaa3f588d759db3f47c1a9fdc3494ba1fa1a73a84e5e3b2a4d58abd7e

            SHA512

            e29ea10ada98c71a18273b04f44f385b120d4e8473e441ce5748cfa44a23648814f2656f429b85440157988c88de776c6ac008dc38bf09cbb746c230a46c69fe

          • \Users\Admin\AppData\Local\Temp\nstE6D9.tmp\nsExec.dll

            Filesize

            6KB

            MD5

            acc2b699edfea5bf5aae45aba3a41e96

            SHA1

            d2accf4d494e43ceb2cff69abe4dd17147d29cc2

            SHA256

            168a974eaa3f588d759db3f47c1a9fdc3494ba1fa1a73a84e5e3b2a4d58abd7e

            SHA512

            e29ea10ada98c71a18273b04f44f385b120d4e8473e441ce5748cfa44a23648814f2656f429b85440157988c88de776c6ac008dc38bf09cbb746c230a46c69fe

          • \Users\Admin\AppData\Local\Temp\nstE6D9.tmp\nsExec.dll

            Filesize

            6KB

            MD5

            acc2b699edfea5bf5aae45aba3a41e96

            SHA1

            d2accf4d494e43ceb2cff69abe4dd17147d29cc2

            SHA256

            168a974eaa3f588d759db3f47c1a9fdc3494ba1fa1a73a84e5e3b2a4d58abd7e

            SHA512

            e29ea10ada98c71a18273b04f44f385b120d4e8473e441ce5748cfa44a23648814f2656f429b85440157988c88de776c6ac008dc38bf09cbb746c230a46c69fe

          • \Windows\SysWOW64\hfnapi.dll

            Filesize

            106KB

            MD5

            b0131451db5497ba010874147e75f4f5

            SHA1

            dafb97f7198fc2959e58f869480ece71ac494979

            SHA256

            7bdd76d007b1c5294211539d7cd838d02627754369ebc579c792281bef771b0e

            SHA512

            f8ccf2ce0c6982bbd23952c0bcb688f9ee73464e517709d51b3742919088a1a2d72407d2d3e28b31a552a86f40af93ba877c97fd20af4b46483c659e2de4e77e

          • \Windows\SysWOW64\hfnapi.dll

            Filesize

            106KB

            MD5

            b0131451db5497ba010874147e75f4f5

            SHA1

            dafb97f7198fc2959e58f869480ece71ac494979

            SHA256

            7bdd76d007b1c5294211539d7cd838d02627754369ebc579c792281bef771b0e

            SHA512

            f8ccf2ce0c6982bbd23952c0bcb688f9ee73464e517709d51b3742919088a1a2d72407d2d3e28b31a552a86f40af93ba877c97fd20af4b46483c659e2de4e77e

          • \Windows\SysWOW64\hfnapi.dll

            Filesize

            106KB

            MD5

            b0131451db5497ba010874147e75f4f5

            SHA1

            dafb97f7198fc2959e58f869480ece71ac494979

            SHA256

            7bdd76d007b1c5294211539d7cd838d02627754369ebc579c792281bef771b0e

            SHA512

            f8ccf2ce0c6982bbd23952c0bcb688f9ee73464e517709d51b3742919088a1a2d72407d2d3e28b31a552a86f40af93ba877c97fd20af4b46483c659e2de4e77e

          • \Windows\SysWOW64\hfpapi.dll

            Filesize

            244KB

            MD5

            91c5363aa57a25034e237b3a8ea730fc

            SHA1

            b0d8fd4a2a9fe86fd5d858e1589d9fed2ca70aa1

            SHA256

            4860b43696788df24af3af37bcaa4ed09b2ab995094ce4c7f78910e71529abe6

            SHA512

            2f9daf6560ec7504bae25cf5634e2a06bb860295e4aa37415ce108ff5090171de171deb039e9c485ef0a77bc1045ed887f2c83fab4166401bfd3f697ceef2bff

          • \Windows\SysWOW64\hfpapi.dll

            Filesize

            244KB

            MD5

            91c5363aa57a25034e237b3a8ea730fc

            SHA1

            b0d8fd4a2a9fe86fd5d858e1589d9fed2ca70aa1

            SHA256

            4860b43696788df24af3af37bcaa4ed09b2ab995094ce4c7f78910e71529abe6

            SHA512

            2f9daf6560ec7504bae25cf5634e2a06bb860295e4aa37415ce108ff5090171de171deb039e9c485ef0a77bc1045ed887f2c83fab4166401bfd3f697ceef2bff

          • \Windows\SysWOW64\installd.exe

            Filesize

            108KB

            MD5

            6b57b39e4367b8fad4766c04a633639f

            SHA1

            b25cba36f3adf594a1da4c08209ca94edce0e138

            SHA256

            a808026ed76b5ac0830c779d4a0cf300e09038812e8e30056d1334151d9d31e1

            SHA512

            533f9f6f418a789931cd5386ab80db33d8d77ab03a24ad59d8edf34c25c4fb67a1466b38fccb24d6ccb7d71a4b8b94529b6179a58003ff0f49c2271eb883cccf

          • \Windows\SysWOW64\nethtsrv.exe

            Filesize

            176KB

            MD5

            edc7d9f0dffff81453e1ac4baac13d31

            SHA1

            8244a9e58d720f2481d255a8c6889bb3e71f979c

            SHA256

            2c88ab8e7e2d7110bbffd1a53fbda213cce74b9804cc03dd8f468a91b7f58b83

            SHA512

            a7b8852ff61cbcc9c9600c7a749c781bded897fd0b459915db8c18e9bb4ef997c13905389a5e89f1cf3a7227984950bc0ad8756a5fab6278605a286b14eea2c4

          • \Windows\SysWOW64\netupdsrv.exe

            Filesize

            158KB

            MD5

            be979894a8c7f21b3c9b68fd4ea498b6

            SHA1

            74130d870832810d2b2ff5cc6cbe46460f58060f

            SHA256

            259e1e5161f32202ea7a01e2e14b5a9c49b4ab7f37abcfc09dbc5606d903f65f

            SHA512

            16b437a20992b85215f694beb7c5b70c5c67fe4c9a0c521412d186ee92bde87219c7309178fc8873785da5003e928c5acd51c6d0641227772f9ec39750bd7ff1

          • memory/820-71-0x0000000000000000-mapping.dmp

          • memory/932-58-0x0000000000000000-mapping.dmp

          • memory/1104-62-0x0000000000000000-mapping.dmp

          • memory/1108-61-0x0000000000000000-mapping.dmp

          • memory/1200-64-0x0000000000000000-mapping.dmp

          • memory/1284-81-0x0000000000000000-mapping.dmp

          • memory/1308-59-0x0000000000000000-mapping.dmp

          • memory/1352-87-0x0000000000000000-mapping.dmp

          • memory/1732-82-0x0000000000000000-mapping.dmp

          • memory/1744-77-0x0000000000000000-mapping.dmp

          • memory/1936-88-0x0000000000000000-mapping.dmp

          • memory/2020-69-0x0000000000360000-0x00000000007BE000-memory.dmp

            Filesize

            4.4MB

          • memory/2020-54-0x00000000756B1000-0x00000000756B3000-memory.dmp

            Filesize

            8KB

          • memory/2020-55-0x0000000000360000-0x00000000007BE000-memory.dmp

            Filesize

            4.4MB

          • memory/2020-91-0x0000000000360000-0x00000000007BE000-memory.dmp

            Filesize

            4.4MB