Analysis

  • max time kernel
    91s
  • max time network
    149s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20220812-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20220812-enlocale:en-usos:windows10-2004-x64system
  • submitted
    23-11-2022 10:20

General

  • Target

    89d72c6d846844b7234149f1156a55b23c35ff0026fd189312725720d1d19fcb.exe

  • Size

    602KB

  • MD5

    6eb49399bca4e77a8dc943e82a85732d

  • SHA1

    2ce91c89bdb56f165513cea2dbe402ecf1b0e95a

  • SHA256

    89d72c6d846844b7234149f1156a55b23c35ff0026fd189312725720d1d19fcb

  • SHA512

    57050c198218315ff66b3d8f6b2b985528640fa8c6eb2228975fbe8c4179ad032d17afbcf31bf3502f8da7792943444b37ff0812df49c7a92311012ed90beac5

  • SSDEEP

    6144:Z6sFuai9ny5DYTBZopVBnjg8LiMHjLELfpvfP7n1mcZJioQXKTVAYIDZGGNNMSaa:TIny5DYTWpG+AfDnhZJiNl39GGNNySY

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\89d72c6d846844b7234149f1156a55b23c35ff0026fd189312725720d1d19fcb.exe
    "C:\Users\Admin\AppData\Local\Temp\89d72c6d846844b7234149f1156a55b23c35ff0026fd189312725720d1d19fcb.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:4788
    • C:\Windows\SysWOW64\net.exe
      net stop nethttpservice
      2⤵
      • Suspicious use of WriteProcessMemory
      PID:1656
      • C:\Windows\SysWOW64\net1.exe
        C:\Windows\system32\net1 stop nethttpservice
        3⤵
          PID:2616
      • C:\Windows\SysWOW64\net.exe
        net stop serviceupdater
        2⤵
        • Suspicious use of WriteProcessMemory
        PID:1540
        • C:\Windows\SysWOW64\net1.exe
          C:\Windows\system32\net1 stop serviceupdater
          3⤵
            PID:2244
        • C:\Windows\SysWOW64\installd.exe
          "C:\Windows\system32\installd.exe" nethfdrv
          2⤵
          • Executes dropped EXE
          • Loads dropped DLL
          PID:3400
        • C:\Windows\SysWOW64\nethtsrv.exe
          "C:\Windows\system32\nethtsrv.exe" -nfdi
          2⤵
          • Executes dropped EXE
          • Loads dropped DLL
          PID:340
        • C:\Windows\SysWOW64\netupdsrv.exe
          "C:\Windows\system32\netupdsrv.exe" -nfdi
          2⤵
          • Executes dropped EXE
          PID:4056
        • C:\Windows\SysWOW64\net.exe
          net start nethttpservice
          2⤵
          • Suspicious use of WriteProcessMemory
          PID:2056
          • C:\Windows\SysWOW64\net1.exe
            C:\Windows\system32\net1 start nethttpservice
            3⤵
              PID:3476
          • C:\Windows\SysWOW64\net.exe
            net start serviceupdater
            2⤵
            • Suspicious use of WriteProcessMemory
            PID:4700
            • C:\Windows\SysWOW64\net1.exe
              C:\Windows\system32\net1 start serviceupdater
              3⤵
                PID:5092
          • 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:3112
          • C:\Windows\SysWOW64\netupdsrv.exe
            C:\Windows\SysWOW64\netupdsrv.exe
            1⤵
            • Executes dropped EXE
            PID:3456

          Network

          MITRE ATT&CK Enterprise v6

          Replay Monitor

          Loading Replay Monitor...

          Downloads

          • C:\Users\Admin\AppData\Local\Temp\nsjEB03.tmp\System.dll

            Filesize

            11KB

            MD5

            c17103ae9072a06da581dec998343fc1

            SHA1

            b72148c6bdfaada8b8c3f950e610ee7cf1da1f8d

            SHA256

            dc58d8ad81cacb0c1ed72e33bff8f23ea40b5252b5bb55d393a0903e6819ae2f

            SHA512

            d32a71aaef18e993f28096d536e41c4d016850721b31171513ce28bbd805a54fd290b7c3e9d935f72e676a1acfb4f0dcc89d95040a0dd29f2b6975855c18986f

          • C:\Users\Admin\AppData\Local\Temp\nsjEB03.tmp\nsExec.dll

            Filesize

            6KB

            MD5

            acc2b699edfea5bf5aae45aba3a41e96

            SHA1

            d2accf4d494e43ceb2cff69abe4dd17147d29cc2

            SHA256

            168a974eaa3f588d759db3f47c1a9fdc3494ba1fa1a73a84e5e3b2a4d58abd7e

            SHA512

            e29ea10ada98c71a18273b04f44f385b120d4e8473e441ce5748cfa44a23648814f2656f429b85440157988c88de776c6ac008dc38bf09cbb746c230a46c69fe

          • C:\Users\Admin\AppData\Local\Temp\nsjEB03.tmp\nsExec.dll

            Filesize

            6KB

            MD5

            acc2b699edfea5bf5aae45aba3a41e96

            SHA1

            d2accf4d494e43ceb2cff69abe4dd17147d29cc2

            SHA256

            168a974eaa3f588d759db3f47c1a9fdc3494ba1fa1a73a84e5e3b2a4d58abd7e

            SHA512

            e29ea10ada98c71a18273b04f44f385b120d4e8473e441ce5748cfa44a23648814f2656f429b85440157988c88de776c6ac008dc38bf09cbb746c230a46c69fe

          • C:\Users\Admin\AppData\Local\Temp\nsjEB03.tmp\nsExec.dll

            Filesize

            6KB

            MD5

            acc2b699edfea5bf5aae45aba3a41e96

            SHA1

            d2accf4d494e43ceb2cff69abe4dd17147d29cc2

            SHA256

            168a974eaa3f588d759db3f47c1a9fdc3494ba1fa1a73a84e5e3b2a4d58abd7e

            SHA512

            e29ea10ada98c71a18273b04f44f385b120d4e8473e441ce5748cfa44a23648814f2656f429b85440157988c88de776c6ac008dc38bf09cbb746c230a46c69fe

          • C:\Users\Admin\AppData\Local\Temp\nsjEB03.tmp\nsExec.dll

            Filesize

            6KB

            MD5

            acc2b699edfea5bf5aae45aba3a41e96

            SHA1

            d2accf4d494e43ceb2cff69abe4dd17147d29cc2

            SHA256

            168a974eaa3f588d759db3f47c1a9fdc3494ba1fa1a73a84e5e3b2a4d58abd7e

            SHA512

            e29ea10ada98c71a18273b04f44f385b120d4e8473e441ce5748cfa44a23648814f2656f429b85440157988c88de776c6ac008dc38bf09cbb746c230a46c69fe

          • C:\Users\Admin\AppData\Local\Temp\nsjEB03.tmp\nsExec.dll

            Filesize

            6KB

            MD5

            acc2b699edfea5bf5aae45aba3a41e96

            SHA1

            d2accf4d494e43ceb2cff69abe4dd17147d29cc2

            SHA256

            168a974eaa3f588d759db3f47c1a9fdc3494ba1fa1a73a84e5e3b2a4d58abd7e

            SHA512

            e29ea10ada98c71a18273b04f44f385b120d4e8473e441ce5748cfa44a23648814f2656f429b85440157988c88de776c6ac008dc38bf09cbb746c230a46c69fe

          • C:\Users\Admin\AppData\Local\Temp\nsjEB03.tmp\nsExec.dll

            Filesize

            6KB

            MD5

            acc2b699edfea5bf5aae45aba3a41e96

            SHA1

            d2accf4d494e43ceb2cff69abe4dd17147d29cc2

            SHA256

            168a974eaa3f588d759db3f47c1a9fdc3494ba1fa1a73a84e5e3b2a4d58abd7e

            SHA512

            e29ea10ada98c71a18273b04f44f385b120d4e8473e441ce5748cfa44a23648814f2656f429b85440157988c88de776c6ac008dc38bf09cbb746c230a46c69fe

          • C:\Users\Admin\AppData\Local\Temp\nsjEB03.tmp\nsExec.dll

            Filesize

            6KB

            MD5

            acc2b699edfea5bf5aae45aba3a41e96

            SHA1

            d2accf4d494e43ceb2cff69abe4dd17147d29cc2

            SHA256

            168a974eaa3f588d759db3f47c1a9fdc3494ba1fa1a73a84e5e3b2a4d58abd7e

            SHA512

            e29ea10ada98c71a18273b04f44f385b120d4e8473e441ce5748cfa44a23648814f2656f429b85440157988c88de776c6ac008dc38bf09cbb746c230a46c69fe

          • C:\Users\Admin\AppData\Local\Temp\nsjEB03.tmp\nsExec.dll

            Filesize

            6KB

            MD5

            acc2b699edfea5bf5aae45aba3a41e96

            SHA1

            d2accf4d494e43ceb2cff69abe4dd17147d29cc2

            SHA256

            168a974eaa3f588d759db3f47c1a9fdc3494ba1fa1a73a84e5e3b2a4d58abd7e

            SHA512

            e29ea10ada98c71a18273b04f44f385b120d4e8473e441ce5748cfa44a23648814f2656f429b85440157988c88de776c6ac008dc38bf09cbb746c230a46c69fe

          • C:\Windows\SysWOW64\hfnapi.dll

            Filesize

            106KB

            MD5

            99cd85c470fd6b94e88b6d77e0af3741

            SHA1

            9894759d5a0ed31286df254d6878c8ae83745f95

            SHA256

            5ff8345ec5e036f1d73f370de33718bfa2b4696f0bb45b06107e7152c7889f0d

            SHA512

            c70a3c8940634418ff6f47599ace5f0407094b8d8d05305ed2b69cbd2dbde2788791c1dfc980f11f244450be22662885bd0fa1393da264230e250e47470ac875

          • C:\Windows\SysWOW64\hfnapi.dll

            Filesize

            106KB

            MD5

            99cd85c470fd6b94e88b6d77e0af3741

            SHA1

            9894759d5a0ed31286df254d6878c8ae83745f95

            SHA256

            5ff8345ec5e036f1d73f370de33718bfa2b4696f0bb45b06107e7152c7889f0d

            SHA512

            c70a3c8940634418ff6f47599ace5f0407094b8d8d05305ed2b69cbd2dbde2788791c1dfc980f11f244450be22662885bd0fa1393da264230e250e47470ac875

          • C:\Windows\SysWOW64\hfnapi.dll

            Filesize

            106KB

            MD5

            99cd85c470fd6b94e88b6d77e0af3741

            SHA1

            9894759d5a0ed31286df254d6878c8ae83745f95

            SHA256

            5ff8345ec5e036f1d73f370de33718bfa2b4696f0bb45b06107e7152c7889f0d

            SHA512

            c70a3c8940634418ff6f47599ace5f0407094b8d8d05305ed2b69cbd2dbde2788791c1dfc980f11f244450be22662885bd0fa1393da264230e250e47470ac875

          • C:\Windows\SysWOW64\hfnapi.dll

            Filesize

            106KB

            MD5

            99cd85c470fd6b94e88b6d77e0af3741

            SHA1

            9894759d5a0ed31286df254d6878c8ae83745f95

            SHA256

            5ff8345ec5e036f1d73f370de33718bfa2b4696f0bb45b06107e7152c7889f0d

            SHA512

            c70a3c8940634418ff6f47599ace5f0407094b8d8d05305ed2b69cbd2dbde2788791c1dfc980f11f244450be22662885bd0fa1393da264230e250e47470ac875

          • C:\Windows\SysWOW64\hfpapi.dll

            Filesize

            241KB

            MD5

            88277192588f042b358da698b10a294a

            SHA1

            e49ca1dd32d4bd4ae4e2ce480486a957cb427204

            SHA256

            8a4c12402ec4683d8af463246442260449c707e55e3ec75c03b0e9d2e514c098

            SHA512

            b5efcbae8eda38f807286ec21eba1f20c9e92b75ab41a3bdacbdca22b6c20ebe138e830be3f850dc5ebf8ad932ce8f3cf8880db51e7cb85bdcf6695932c2093a

          • C:\Windows\SysWOW64\hfpapi.dll

            Filesize

            241KB

            MD5

            88277192588f042b358da698b10a294a

            SHA1

            e49ca1dd32d4bd4ae4e2ce480486a957cb427204

            SHA256

            8a4c12402ec4683d8af463246442260449c707e55e3ec75c03b0e9d2e514c098

            SHA512

            b5efcbae8eda38f807286ec21eba1f20c9e92b75ab41a3bdacbdca22b6c20ebe138e830be3f850dc5ebf8ad932ce8f3cf8880db51e7cb85bdcf6695932c2093a

          • C:\Windows\SysWOW64\hfpapi.dll

            Filesize

            241KB

            MD5

            88277192588f042b358da698b10a294a

            SHA1

            e49ca1dd32d4bd4ae4e2ce480486a957cb427204

            SHA256

            8a4c12402ec4683d8af463246442260449c707e55e3ec75c03b0e9d2e514c098

            SHA512

            b5efcbae8eda38f807286ec21eba1f20c9e92b75ab41a3bdacbdca22b6c20ebe138e830be3f850dc5ebf8ad932ce8f3cf8880db51e7cb85bdcf6695932c2093a

          • C:\Windows\SysWOW64\installd.exe

            Filesize

            108KB

            MD5

            a042ad552104048799dfe36eea403f07

            SHA1

            f0f29920b175586e41b5dbef4ca8be59b4a91ade

            SHA256

            3f0fd9850a23fdff5ca789efbe941b75be49958be3cdc29e3ae6ccdd62ad0fb2

            SHA512

            289e1c9a1df67338f3e6c7d7738dab1d00cc354f6d6d1b9085daf28ec7baa0430053cbf32ec427aa85ce10ef1229fbb745ab1f45a641e75a68059a2e4a2ad381

          • C:\Windows\SysWOW64\installd.exe

            Filesize

            108KB

            MD5

            a042ad552104048799dfe36eea403f07

            SHA1

            f0f29920b175586e41b5dbef4ca8be59b4a91ade

            SHA256

            3f0fd9850a23fdff5ca789efbe941b75be49958be3cdc29e3ae6ccdd62ad0fb2

            SHA512

            289e1c9a1df67338f3e6c7d7738dab1d00cc354f6d6d1b9085daf28ec7baa0430053cbf32ec427aa85ce10ef1229fbb745ab1f45a641e75a68059a2e4a2ad381

          • C:\Windows\SysWOW64\nethtsrv.exe

            Filesize

            176KB

            MD5

            537ac3e72990aeb5673efbc99e741102

            SHA1

            62da2a39eceb06c88bb2b6fd7413fca26b7de2f8

            SHA256

            1585be325c5964f58655ca845289cf96461934aea828d8e221ef8f62b7217b10

            SHA512

            8a292e6b6be956455500c1f14d45c12d095596d836541d792433a9050eb38f1fc37ee9bcc378133c837caf3040959081884472dc6dc83b53c84b5cb9739534ec

          • C:\Windows\SysWOW64\nethtsrv.exe

            Filesize

            176KB

            MD5

            537ac3e72990aeb5673efbc99e741102

            SHA1

            62da2a39eceb06c88bb2b6fd7413fca26b7de2f8

            SHA256

            1585be325c5964f58655ca845289cf96461934aea828d8e221ef8f62b7217b10

            SHA512

            8a292e6b6be956455500c1f14d45c12d095596d836541d792433a9050eb38f1fc37ee9bcc378133c837caf3040959081884472dc6dc83b53c84b5cb9739534ec

          • C:\Windows\SysWOW64\nethtsrv.exe

            Filesize

            176KB

            MD5

            537ac3e72990aeb5673efbc99e741102

            SHA1

            62da2a39eceb06c88bb2b6fd7413fca26b7de2f8

            SHA256

            1585be325c5964f58655ca845289cf96461934aea828d8e221ef8f62b7217b10

            SHA512

            8a292e6b6be956455500c1f14d45c12d095596d836541d792433a9050eb38f1fc37ee9bcc378133c837caf3040959081884472dc6dc83b53c84b5cb9739534ec

          • C:\Windows\SysWOW64\netupdsrv.exe

            Filesize

            159KB

            MD5

            506d3c22d3b5d62cbbfbd53fb4ab8a25

            SHA1

            cc7df34ec70fba3a8d215b6ad2afc52d982ee1e0

            SHA256

            ef63ab9c3b1107ead8d8e027f69fde1329bb188d252073fdb60cd95eda9b3858

            SHA512

            0379505fb625242e43f1351e2ee03c168bb1ff68a447a017e5ed8edd2198281c1e91189d68a6d13aa585d8010141fb8e7a3216ab1262f984aad3f0c96c1b438f

          • C:\Windows\SysWOW64\netupdsrv.exe

            Filesize

            159KB

            MD5

            506d3c22d3b5d62cbbfbd53fb4ab8a25

            SHA1

            cc7df34ec70fba3a8d215b6ad2afc52d982ee1e0

            SHA256

            ef63ab9c3b1107ead8d8e027f69fde1329bb188d252073fdb60cd95eda9b3858

            SHA512

            0379505fb625242e43f1351e2ee03c168bb1ff68a447a017e5ed8edd2198281c1e91189d68a6d13aa585d8010141fb8e7a3216ab1262f984aad3f0c96c1b438f

          • C:\Windows\SysWOW64\netupdsrv.exe

            Filesize

            159KB

            MD5

            506d3c22d3b5d62cbbfbd53fb4ab8a25

            SHA1

            cc7df34ec70fba3a8d215b6ad2afc52d982ee1e0

            SHA256

            ef63ab9c3b1107ead8d8e027f69fde1329bb188d252073fdb60cd95eda9b3858

            SHA512

            0379505fb625242e43f1351e2ee03c168bb1ff68a447a017e5ed8edd2198281c1e91189d68a6d13aa585d8010141fb8e7a3216ab1262f984aad3f0c96c1b438f

          • memory/340-147-0x0000000000000000-mapping.dmp

          • memory/1540-140-0x0000000000000000-mapping.dmp

          • memory/1656-136-0x0000000000000000-mapping.dmp

          • memory/2056-158-0x0000000000000000-mapping.dmp

          • memory/2244-141-0x0000000000000000-mapping.dmp

          • memory/2616-137-0x0000000000000000-mapping.dmp

          • memory/3400-142-0x0000000000000000-mapping.dmp

          • memory/3476-159-0x0000000000000000-mapping.dmp

          • memory/4056-153-0x0000000000000000-mapping.dmp

          • memory/4700-165-0x0000000000000000-mapping.dmp

          • memory/4788-132-0x0000000000360000-0x00000000007BE000-memory.dmp

            Filesize

            4.4MB

          • memory/4788-168-0x0000000000360000-0x00000000007BE000-memory.dmp

            Filesize

            4.4MB

          • memory/5092-166-0x0000000000000000-mapping.dmp