Analysis

  • max time kernel
    26s
  • max time network
    46s
  • platform
    windows7_x64
  • resource
    win7-20220812-en
  • resource tags

    arch:x64arch:x86image:win7-20220812-enlocale:en-usos:windows7-x64system
  • submitted
    23-11-2022 10:50

General

  • Target

    ed8aa7014a17e0ca637c4e1610aacd1b96c481023796f54ac77a55a8e4ad37c0.exe

  • Size

    446KB

  • MD5

    bef8ad6e60a7d11841e018f867b8d01b

  • SHA1

    87e13bbd3d53eb75d1b46ac94128ea6e0e7ebb82

  • SHA256

    ed8aa7014a17e0ca637c4e1610aacd1b96c481023796f54ac77a55a8e4ad37c0

  • SHA512

    c3a86096a199ac34280a359ec96b1baedcff1a87b4132837073e925c813c359f85918af44c684a65eec97747fa535c6192281649d470e69318d1b28365612c19

  • SSDEEP

    12288:995G1ZW7yU6DJ4YiQSvu45iCiEvi5uRfzj5u93j:9vIc7yU6DJ4Y/aiCJrN5M3j

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\ed8aa7014a17e0ca637c4e1610aacd1b96c481023796f54ac77a55a8e4ad37c0.exe
    "C:\Users\Admin\AppData\Local\Temp\ed8aa7014a17e0ca637c4e1610aacd1b96c481023796f54ac77a55a8e4ad37c0.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:1852
    • C:\Windows\SysWOW64\net.exe
      net stop nethttpservice
      2⤵
      • Suspicious use of WriteProcessMemory
      PID:1740
      • C:\Windows\SysWOW64\net1.exe
        C:\Windows\system32\net1 stop nethttpservice
        3⤵
          PID:1592
      • C:\Windows\SysWOW64\net.exe
        net stop serviceupdater
        2⤵
        • Suspicious use of WriteProcessMemory
        PID:1748
        • C:\Windows\SysWOW64\net1.exe
          C:\Windows\system32\net1 stop serviceupdater
          3⤵
            PID:1300
        • C:\Windows\SysWOW64\installd.exe
          "C:\Windows\system32\installd.exe" nethfdrv
          2⤵
          • Executes dropped EXE
          • Loads dropped DLL
          PID:1428
        • C:\Windows\SysWOW64\nethtsrv.exe
          "C:\Windows\system32\nethtsrv.exe" -nfdi
          2⤵
          • Executes dropped EXE
          • Loads dropped DLL
          PID:752
        • C:\Windows\SysWOW64\netupdsrv.exe
          "C:\Windows\system32\netupdsrv.exe" -nfdi
          2⤵
          • Executes dropped EXE
          PID:1344
        • C:\Windows\SysWOW64\net.exe
          net start nethttpservice
          2⤵
          • Suspicious use of WriteProcessMemory
          PID:1280
          • C:\Windows\SysWOW64\net1.exe
            C:\Windows\system32\net1 start nethttpservice
            3⤵
              PID:748
          • C:\Windows\SysWOW64\net.exe
            net start serviceupdater
            2⤵
            • Suspicious use of WriteProcessMemory
            PID:296
            • C:\Windows\SysWOW64\net1.exe
              C:\Windows\system32\net1 start serviceupdater
              3⤵
                PID:1516
          • C:\Windows\SysWOW64\nethtsrv.exe
            C:\Windows\SysWOW64\nethtsrv.exe
            1⤵
            • Executes dropped EXE
            • Loads dropped DLL
            • Suspicious use of AdjustPrivilegeToken
            PID:1736
          • C:\Windows\SysWOW64\netupdsrv.exe
            C:\Windows\SysWOW64\netupdsrv.exe
            1⤵
            • Executes dropped EXE
            PID:1520

          Network

          MITRE ATT&CK Matrix ATT&CK v6

          Discovery

          Query Registry

          1
          T1012

          System Information Discovery

          1
          T1082

          Replay Monitor

          Loading Replay Monitor...

          Downloads

          • C:\Windows\SysWOW64\hfnapi.dll
            Filesize

            106KB

            MD5

            05ade9e19a6edf98efca5175fc79c269

            SHA1

            ef4e8383da9bfd143f7b61f22358a14405dfad8c

            SHA256

            56e4190a38a5b700196048b2a3fe66e7593045d6819d925e5468a9aa41de7aa1

            SHA512

            00fb66c87f7f34817e51cd0a37df95674a0f1bbb49703839d75a3688448f6216c8470bac5a9bb6123c52bd63f06d90c8134b786d7747e813fc5bf61ce6f1e68e

          • C:\Windows\SysWOW64\hfpapi.dll
            Filesize

            241KB

            MD5

            4b0f355102fdb9d0f9e402364cd1d9bc

            SHA1

            b0c368f593ef2f0d00bfd94b990fd60b533b8b92

            SHA256

            517f904788c9390299aa4dc4d0a09740ef02b919fe4f2354a51c2b422f6a9407

            SHA512

            3043f802ca86c7aa46271e8e2a385f47c1470601748585771b315357791784f0bf749859539cc42c903da6620c91110b2be9cffdd77407cf948e0b4d7aeb203a

          • C:\Windows\SysWOW64\installd.exe
            Filesize

            108KB

            MD5

            6e0888db695aa1c8319de5784d7dc9f2

            SHA1

            d47705ff680e7194482c89ba508f27a520c1b2ae

            SHA256

            1b865df3393851a0f0d3889f67da5ebd111894f075b9ac9b319849b326db49fb

            SHA512

            b630ddcd53ae7a935525247c53bad0651537efc8f24a5591dec7fb8be4e38de1f7b24aa02f94d2c0e59f7b1a8b4f3f997cbb11886b45a9e84b1aba55c9580f00

          • C:\Windows\SysWOW64\nethtsrv.exe
            Filesize

            176KB

            MD5

            5bc53709f86f936c4e9148f7acf1b244

            SHA1

            ccc3ccb85bf7a5adda54b5e9cb221639f33844bc

            SHA256

            79457dd72c8e95a95147594cd6ff9dff1c45fee63702a2c50d3ca20ea110591e

            SHA512

            559a495df7c26dfe983bb1d92915366503427b78d6e1176fc39d1bdcc1d32d5a5dbf790244e31a43d131a51f8104c3e05915873d032e6c8786ab93f04ba93673

          • C:\Windows\SysWOW64\nethtsrv.exe
            Filesize

            176KB

            MD5

            5bc53709f86f936c4e9148f7acf1b244

            SHA1

            ccc3ccb85bf7a5adda54b5e9cb221639f33844bc

            SHA256

            79457dd72c8e95a95147594cd6ff9dff1c45fee63702a2c50d3ca20ea110591e

            SHA512

            559a495df7c26dfe983bb1d92915366503427b78d6e1176fc39d1bdcc1d32d5a5dbf790244e31a43d131a51f8104c3e05915873d032e6c8786ab93f04ba93673

          • C:\Windows\SysWOW64\netupdsrv.exe
            Filesize

            159KB

            MD5

            d8ea098d86a789aa5e73025d2b947b53

            SHA1

            8df268d354f20b43819cd2a9d5941f001f67e89d

            SHA256

            36b677772f5b9504b2cb8a6438961d3967bad6a67a705991fc5d3610161da368

            SHA512

            93140fdf08ac968a83dd550e5c7cfca3127f9ed225687638f76c42a03b0f10ee64cc2b766de4fe350e4057ea0de649fda3d3e4b74d040d54d49a4d764c93d054

          • C:\Windows\SysWOW64\netupdsrv.exe
            Filesize

            159KB

            MD5

            d8ea098d86a789aa5e73025d2b947b53

            SHA1

            8df268d354f20b43819cd2a9d5941f001f67e89d

            SHA256

            36b677772f5b9504b2cb8a6438961d3967bad6a67a705991fc5d3610161da368

            SHA512

            93140fdf08ac968a83dd550e5c7cfca3127f9ed225687638f76c42a03b0f10ee64cc2b766de4fe350e4057ea0de649fda3d3e4b74d040d54d49a4d764c93d054

          • \Users\Admin\AppData\Local\Temp\nso2B48.tmp\System.dll
            Filesize

            11KB

            MD5

            c17103ae9072a06da581dec998343fc1

            SHA1

            b72148c6bdfaada8b8c3f950e610ee7cf1da1f8d

            SHA256

            dc58d8ad81cacb0c1ed72e33bff8f23ea40b5252b5bb55d393a0903e6819ae2f

            SHA512

            d32a71aaef18e993f28096d536e41c4d016850721b31171513ce28bbd805a54fd290b7c3e9d935f72e676a1acfb4f0dcc89d95040a0dd29f2b6975855c18986f

          • \Users\Admin\AppData\Local\Temp\nso2B48.tmp\nsExec.dll
            Filesize

            6KB

            MD5

            acc2b699edfea5bf5aae45aba3a41e96

            SHA1

            d2accf4d494e43ceb2cff69abe4dd17147d29cc2

            SHA256

            168a974eaa3f588d759db3f47c1a9fdc3494ba1fa1a73a84e5e3b2a4d58abd7e

            SHA512

            e29ea10ada98c71a18273b04f44f385b120d4e8473e441ce5748cfa44a23648814f2656f429b85440157988c88de776c6ac008dc38bf09cbb746c230a46c69fe

          • \Users\Admin\AppData\Local\Temp\nso2B48.tmp\nsExec.dll
            Filesize

            6KB

            MD5

            acc2b699edfea5bf5aae45aba3a41e96

            SHA1

            d2accf4d494e43ceb2cff69abe4dd17147d29cc2

            SHA256

            168a974eaa3f588d759db3f47c1a9fdc3494ba1fa1a73a84e5e3b2a4d58abd7e

            SHA512

            e29ea10ada98c71a18273b04f44f385b120d4e8473e441ce5748cfa44a23648814f2656f429b85440157988c88de776c6ac008dc38bf09cbb746c230a46c69fe

          • \Users\Admin\AppData\Local\Temp\nso2B48.tmp\nsExec.dll
            Filesize

            6KB

            MD5

            acc2b699edfea5bf5aae45aba3a41e96

            SHA1

            d2accf4d494e43ceb2cff69abe4dd17147d29cc2

            SHA256

            168a974eaa3f588d759db3f47c1a9fdc3494ba1fa1a73a84e5e3b2a4d58abd7e

            SHA512

            e29ea10ada98c71a18273b04f44f385b120d4e8473e441ce5748cfa44a23648814f2656f429b85440157988c88de776c6ac008dc38bf09cbb746c230a46c69fe

          • \Users\Admin\AppData\Local\Temp\nso2B48.tmp\nsExec.dll
            Filesize

            6KB

            MD5

            acc2b699edfea5bf5aae45aba3a41e96

            SHA1

            d2accf4d494e43ceb2cff69abe4dd17147d29cc2

            SHA256

            168a974eaa3f588d759db3f47c1a9fdc3494ba1fa1a73a84e5e3b2a4d58abd7e

            SHA512

            e29ea10ada98c71a18273b04f44f385b120d4e8473e441ce5748cfa44a23648814f2656f429b85440157988c88de776c6ac008dc38bf09cbb746c230a46c69fe

          • \Windows\SysWOW64\hfnapi.dll
            Filesize

            106KB

            MD5

            05ade9e19a6edf98efca5175fc79c269

            SHA1

            ef4e8383da9bfd143f7b61f22358a14405dfad8c

            SHA256

            56e4190a38a5b700196048b2a3fe66e7593045d6819d925e5468a9aa41de7aa1

            SHA512

            00fb66c87f7f34817e51cd0a37df95674a0f1bbb49703839d75a3688448f6216c8470bac5a9bb6123c52bd63f06d90c8134b786d7747e813fc5bf61ce6f1e68e

          • \Windows\SysWOW64\hfnapi.dll
            Filesize

            106KB

            MD5

            05ade9e19a6edf98efca5175fc79c269

            SHA1

            ef4e8383da9bfd143f7b61f22358a14405dfad8c

            SHA256

            56e4190a38a5b700196048b2a3fe66e7593045d6819d925e5468a9aa41de7aa1

            SHA512

            00fb66c87f7f34817e51cd0a37df95674a0f1bbb49703839d75a3688448f6216c8470bac5a9bb6123c52bd63f06d90c8134b786d7747e813fc5bf61ce6f1e68e

          • \Windows\SysWOW64\hfnapi.dll
            Filesize

            106KB

            MD5

            05ade9e19a6edf98efca5175fc79c269

            SHA1

            ef4e8383da9bfd143f7b61f22358a14405dfad8c

            SHA256

            56e4190a38a5b700196048b2a3fe66e7593045d6819d925e5468a9aa41de7aa1

            SHA512

            00fb66c87f7f34817e51cd0a37df95674a0f1bbb49703839d75a3688448f6216c8470bac5a9bb6123c52bd63f06d90c8134b786d7747e813fc5bf61ce6f1e68e

          • \Windows\SysWOW64\hfpapi.dll
            Filesize

            241KB

            MD5

            4b0f355102fdb9d0f9e402364cd1d9bc

            SHA1

            b0c368f593ef2f0d00bfd94b990fd60b533b8b92

            SHA256

            517f904788c9390299aa4dc4d0a09740ef02b919fe4f2354a51c2b422f6a9407

            SHA512

            3043f802ca86c7aa46271e8e2a385f47c1470601748585771b315357791784f0bf749859539cc42c903da6620c91110b2be9cffdd77407cf948e0b4d7aeb203a

          • \Windows\SysWOW64\hfpapi.dll
            Filesize

            241KB

            MD5

            4b0f355102fdb9d0f9e402364cd1d9bc

            SHA1

            b0c368f593ef2f0d00bfd94b990fd60b533b8b92

            SHA256

            517f904788c9390299aa4dc4d0a09740ef02b919fe4f2354a51c2b422f6a9407

            SHA512

            3043f802ca86c7aa46271e8e2a385f47c1470601748585771b315357791784f0bf749859539cc42c903da6620c91110b2be9cffdd77407cf948e0b4d7aeb203a

          • \Windows\SysWOW64\installd.exe
            Filesize

            108KB

            MD5

            6e0888db695aa1c8319de5784d7dc9f2

            SHA1

            d47705ff680e7194482c89ba508f27a520c1b2ae

            SHA256

            1b865df3393851a0f0d3889f67da5ebd111894f075b9ac9b319849b326db49fb

            SHA512

            b630ddcd53ae7a935525247c53bad0651537efc8f24a5591dec7fb8be4e38de1f7b24aa02f94d2c0e59f7b1a8b4f3f997cbb11886b45a9e84b1aba55c9580f00

          • \Windows\SysWOW64\nethtsrv.exe
            Filesize

            176KB

            MD5

            5bc53709f86f936c4e9148f7acf1b244

            SHA1

            ccc3ccb85bf7a5adda54b5e9cb221639f33844bc

            SHA256

            79457dd72c8e95a95147594cd6ff9dff1c45fee63702a2c50d3ca20ea110591e

            SHA512

            559a495df7c26dfe983bb1d92915366503427b78d6e1176fc39d1bdcc1d32d5a5dbf790244e31a43d131a51f8104c3e05915873d032e6c8786ab93f04ba93673

          • \Windows\SysWOW64\netupdsrv.exe
            Filesize

            159KB

            MD5

            d8ea098d86a789aa5e73025d2b947b53

            SHA1

            8df268d354f20b43819cd2a9d5941f001f67e89d

            SHA256

            36b677772f5b9504b2cb8a6438961d3967bad6a67a705991fc5d3610161da368

            SHA512

            93140fdf08ac968a83dd550e5c7cfca3127f9ed225687638f76c42a03b0f10ee64cc2b766de4fe350e4057ea0de649fda3d3e4b74d040d54d49a4d764c93d054

          • memory/296-85-0x0000000000000000-mapping.dmp
          • memory/748-80-0x0000000000000000-mapping.dmp
          • memory/752-69-0x0000000000000000-mapping.dmp
          • memory/1280-79-0x0000000000000000-mapping.dmp
          • memory/1300-61-0x0000000000000000-mapping.dmp
          • memory/1344-75-0x0000000000000000-mapping.dmp
          • memory/1428-63-0x0000000000000000-mapping.dmp
          • memory/1516-86-0x0000000000000000-mapping.dmp
          • memory/1592-58-0x0000000000000000-mapping.dmp
          • memory/1740-57-0x0000000000000000-mapping.dmp
          • memory/1748-60-0x0000000000000000-mapping.dmp
          • memory/1852-54-0x0000000075521000-0x0000000075523000-memory.dmp
            Filesize

            8KB