Analysis

  • max time kernel
    140s
  • max time network
    150s
  • 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 10:09

General

  • Target

    e12c948f68da6f1bb13f88230e4009955b90c52e821a201dcbcb5b712dd544bf.exe

  • Size

    603KB

  • MD5

    c2c175fe2861886077f1162bf82d0d6d

  • SHA1

    00ab29186893512b91656b1d8932b62fe5a30089

  • SHA256

    e12c948f68da6f1bb13f88230e4009955b90c52e821a201dcbcb5b712dd544bf

  • SHA512

    18f9845e72ac44537df970aa466f55bb804ddc61bc6379c820fa5e96aee4d23bc362a6062d56bbabd284c189626baa47fb6c68c3fadee472fb5f6defd128d4bd

  • SSDEEP

    12288:RIny5DYTtVFEO4IPGtwUAPbhtWt8PlblotI0Uidof4HxsXqe6:tUTtVj4xWPTWG9ythdofsua

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\e12c948f68da6f1bb13f88230e4009955b90c52e821a201dcbcb5b712dd544bf.exe
    "C:\Users\Admin\AppData\Local\Temp\e12c948f68da6f1bb13f88230e4009955b90c52e821a201dcbcb5b712dd544bf.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:3836
    • C:\Windows\SysWOW64\net.exe
      net stop nethttpservice
      2⤵
      • Suspicious use of WriteProcessMemory
      PID:3908
      • C:\Windows\SysWOW64\net1.exe
        C:\Windows\system32\net1 stop nethttpservice
        3⤵
          PID:1412
      • C:\Windows\SysWOW64\net.exe
        net stop serviceupdater
        2⤵
        • Suspicious use of WriteProcessMemory
        PID:4260
        • C:\Windows\SysWOW64\net1.exe
          C:\Windows\system32\net1 stop serviceupdater
          3⤵
            PID:3916
        • C:\Windows\SysWOW64\installd.exe
          "C:\Windows\system32\installd.exe" nethfdrv
          2⤵
          • Executes dropped EXE
          • Loads dropped DLL
          PID:4604
        • C:\Windows\SysWOW64\nethtsrv.exe
          "C:\Windows\system32\nethtsrv.exe" -nfdi
          2⤵
          • Executes dropped EXE
          • Loads dropped DLL
          PID:4136
        • C:\Windows\SysWOW64\netupdsrv.exe
          "C:\Windows\system32\netupdsrv.exe" -nfdi
          2⤵
          • Executes dropped EXE
          PID:4936
        • C:\Windows\SysWOW64\net.exe
          net start nethttpservice
          2⤵
          • Suspicious use of WriteProcessMemory
          PID:868
          • C:\Windows\SysWOW64\net1.exe
            C:\Windows\system32\net1 start nethttpservice
            3⤵
              PID:4752
          • C:\Windows\SysWOW64\net.exe
            net start serviceupdater
            2⤵
            • Suspicious use of WriteProcessMemory
            PID:4100
            • C:\Windows\SysWOW64\net1.exe
              C:\Windows\system32\net1 start serviceupdater
              3⤵
                PID:4484
          • 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:4724
          • C:\Windows\SysWOW64\netupdsrv.exe
            C:\Windows\SysWOW64\netupdsrv.exe
            1⤵
            • Executes dropped EXE
            PID:2560

          Network

          MITRE ATT&CK Enterprise v6

          Replay Monitor

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          Downloads

          • C:\Users\Admin\AppData\Local\Temp\nse85F0.tmp\System.dll

            Filesize

            11KB

            MD5

            c17103ae9072a06da581dec998343fc1

            SHA1

            b72148c6bdfaada8b8c3f950e610ee7cf1da1f8d

            SHA256

            dc58d8ad81cacb0c1ed72e33bff8f23ea40b5252b5bb55d393a0903e6819ae2f

            SHA512

            d32a71aaef18e993f28096d536e41c4d016850721b31171513ce28bbd805a54fd290b7c3e9d935f72e676a1acfb4f0dcc89d95040a0dd29f2b6975855c18986f

          • C:\Users\Admin\AppData\Local\Temp\nse85F0.tmp\nsExec.dll

            Filesize

            6KB

            MD5

            acc2b699edfea5bf5aae45aba3a41e96

            SHA1

            d2accf4d494e43ceb2cff69abe4dd17147d29cc2

            SHA256

            168a974eaa3f588d759db3f47c1a9fdc3494ba1fa1a73a84e5e3b2a4d58abd7e

            SHA512

            e29ea10ada98c71a18273b04f44f385b120d4e8473e441ce5748cfa44a23648814f2656f429b85440157988c88de776c6ac008dc38bf09cbb746c230a46c69fe

          • C:\Users\Admin\AppData\Local\Temp\nse85F0.tmp\nsExec.dll

            Filesize

            6KB

            MD5

            acc2b699edfea5bf5aae45aba3a41e96

            SHA1

            d2accf4d494e43ceb2cff69abe4dd17147d29cc2

            SHA256

            168a974eaa3f588d759db3f47c1a9fdc3494ba1fa1a73a84e5e3b2a4d58abd7e

            SHA512

            e29ea10ada98c71a18273b04f44f385b120d4e8473e441ce5748cfa44a23648814f2656f429b85440157988c88de776c6ac008dc38bf09cbb746c230a46c69fe

          • C:\Users\Admin\AppData\Local\Temp\nse85F0.tmp\nsExec.dll

            Filesize

            6KB

            MD5

            acc2b699edfea5bf5aae45aba3a41e96

            SHA1

            d2accf4d494e43ceb2cff69abe4dd17147d29cc2

            SHA256

            168a974eaa3f588d759db3f47c1a9fdc3494ba1fa1a73a84e5e3b2a4d58abd7e

            SHA512

            e29ea10ada98c71a18273b04f44f385b120d4e8473e441ce5748cfa44a23648814f2656f429b85440157988c88de776c6ac008dc38bf09cbb746c230a46c69fe

          • C:\Users\Admin\AppData\Local\Temp\nse85F0.tmp\nsExec.dll

            Filesize

            6KB

            MD5

            acc2b699edfea5bf5aae45aba3a41e96

            SHA1

            d2accf4d494e43ceb2cff69abe4dd17147d29cc2

            SHA256

            168a974eaa3f588d759db3f47c1a9fdc3494ba1fa1a73a84e5e3b2a4d58abd7e

            SHA512

            e29ea10ada98c71a18273b04f44f385b120d4e8473e441ce5748cfa44a23648814f2656f429b85440157988c88de776c6ac008dc38bf09cbb746c230a46c69fe

          • C:\Users\Admin\AppData\Local\Temp\nse85F0.tmp\nsExec.dll

            Filesize

            6KB

            MD5

            acc2b699edfea5bf5aae45aba3a41e96

            SHA1

            d2accf4d494e43ceb2cff69abe4dd17147d29cc2

            SHA256

            168a974eaa3f588d759db3f47c1a9fdc3494ba1fa1a73a84e5e3b2a4d58abd7e

            SHA512

            e29ea10ada98c71a18273b04f44f385b120d4e8473e441ce5748cfa44a23648814f2656f429b85440157988c88de776c6ac008dc38bf09cbb746c230a46c69fe

          • C:\Users\Admin\AppData\Local\Temp\nse85F0.tmp\nsExec.dll

            Filesize

            6KB

            MD5

            acc2b699edfea5bf5aae45aba3a41e96

            SHA1

            d2accf4d494e43ceb2cff69abe4dd17147d29cc2

            SHA256

            168a974eaa3f588d759db3f47c1a9fdc3494ba1fa1a73a84e5e3b2a4d58abd7e

            SHA512

            e29ea10ada98c71a18273b04f44f385b120d4e8473e441ce5748cfa44a23648814f2656f429b85440157988c88de776c6ac008dc38bf09cbb746c230a46c69fe

          • C:\Users\Admin\AppData\Local\Temp\nse85F0.tmp\nsExec.dll

            Filesize

            6KB

            MD5

            acc2b699edfea5bf5aae45aba3a41e96

            SHA1

            d2accf4d494e43ceb2cff69abe4dd17147d29cc2

            SHA256

            168a974eaa3f588d759db3f47c1a9fdc3494ba1fa1a73a84e5e3b2a4d58abd7e

            SHA512

            e29ea10ada98c71a18273b04f44f385b120d4e8473e441ce5748cfa44a23648814f2656f429b85440157988c88de776c6ac008dc38bf09cbb746c230a46c69fe

          • C:\Users\Admin\AppData\Local\Temp\nse85F0.tmp\nsExec.dll

            Filesize

            6KB

            MD5

            acc2b699edfea5bf5aae45aba3a41e96

            SHA1

            d2accf4d494e43ceb2cff69abe4dd17147d29cc2

            SHA256

            168a974eaa3f588d759db3f47c1a9fdc3494ba1fa1a73a84e5e3b2a4d58abd7e

            SHA512

            e29ea10ada98c71a18273b04f44f385b120d4e8473e441ce5748cfa44a23648814f2656f429b85440157988c88de776c6ac008dc38bf09cbb746c230a46c69fe

          • C:\Windows\SysWOW64\hfnapi.dll

            Filesize

            106KB

            MD5

            e50f837a420e07757522259886e0e394

            SHA1

            f471c958084ea2c6009135f99c60000fd3632792

            SHA256

            cce41c47cb925d8d5943b44337a7a6e9178ae4d902e00f8072c58d3b05991323

            SHA512

            e979166b02a784101d95a8563db8005857dd6b36430ee8de1f13118ded2baa7debcd54aabc2f67f941c660e0878f1f21d8fe6ae5e69507d7808eb35fc86554c1

          • C:\Windows\SysWOW64\hfnapi.dll

            Filesize

            106KB

            MD5

            e50f837a420e07757522259886e0e394

            SHA1

            f471c958084ea2c6009135f99c60000fd3632792

            SHA256

            cce41c47cb925d8d5943b44337a7a6e9178ae4d902e00f8072c58d3b05991323

            SHA512

            e979166b02a784101d95a8563db8005857dd6b36430ee8de1f13118ded2baa7debcd54aabc2f67f941c660e0878f1f21d8fe6ae5e69507d7808eb35fc86554c1

          • C:\Windows\SysWOW64\hfnapi.dll

            Filesize

            106KB

            MD5

            e50f837a420e07757522259886e0e394

            SHA1

            f471c958084ea2c6009135f99c60000fd3632792

            SHA256

            cce41c47cb925d8d5943b44337a7a6e9178ae4d902e00f8072c58d3b05991323

            SHA512

            e979166b02a784101d95a8563db8005857dd6b36430ee8de1f13118ded2baa7debcd54aabc2f67f941c660e0878f1f21d8fe6ae5e69507d7808eb35fc86554c1

          • C:\Windows\SysWOW64\hfnapi.dll

            Filesize

            106KB

            MD5

            e50f837a420e07757522259886e0e394

            SHA1

            f471c958084ea2c6009135f99c60000fd3632792

            SHA256

            cce41c47cb925d8d5943b44337a7a6e9178ae4d902e00f8072c58d3b05991323

            SHA512

            e979166b02a784101d95a8563db8005857dd6b36430ee8de1f13118ded2baa7debcd54aabc2f67f941c660e0878f1f21d8fe6ae5e69507d7808eb35fc86554c1

          • C:\Windows\SysWOW64\hfpapi.dll

            Filesize

            244KB

            MD5

            6cf51ceac0ca28e248d9c432ff9c74c7

            SHA1

            023eb3e609fdeb4f2b24d84dc460105dcac96662

            SHA256

            7bf9faee090665d3bfb73fb9c2d123d0c085dfc31755209317da79e04b21b44c

            SHA512

            edb58595feeb3490452438475e66b651aad5c395f6de95ff58583d1c1a0343810334745e13823ecaf7301283ccc82d70ab4dccd9bc920f6eb90e7bc0f606123d

          • C:\Windows\SysWOW64\hfpapi.dll

            Filesize

            244KB

            MD5

            6cf51ceac0ca28e248d9c432ff9c74c7

            SHA1

            023eb3e609fdeb4f2b24d84dc460105dcac96662

            SHA256

            7bf9faee090665d3bfb73fb9c2d123d0c085dfc31755209317da79e04b21b44c

            SHA512

            edb58595feeb3490452438475e66b651aad5c395f6de95ff58583d1c1a0343810334745e13823ecaf7301283ccc82d70ab4dccd9bc920f6eb90e7bc0f606123d

          • C:\Windows\SysWOW64\hfpapi.dll

            Filesize

            244KB

            MD5

            6cf51ceac0ca28e248d9c432ff9c74c7

            SHA1

            023eb3e609fdeb4f2b24d84dc460105dcac96662

            SHA256

            7bf9faee090665d3bfb73fb9c2d123d0c085dfc31755209317da79e04b21b44c

            SHA512

            edb58595feeb3490452438475e66b651aad5c395f6de95ff58583d1c1a0343810334745e13823ecaf7301283ccc82d70ab4dccd9bc920f6eb90e7bc0f606123d

          • C:\Windows\SysWOW64\installd.exe

            Filesize

            108KB

            MD5

            7da212ad069eba8eac247a89fbe01aa2

            SHA1

            e24603bcc1f0aee5eddcc0117b285930303a5a5f

            SHA256

            19af0f79284e9e54be4cf19bad15fd4a40c5e611351def0e32b7e38abff4a17e

            SHA512

            437c2c518ec74f0f29dffc98c135ed615d93c60ca255a2ffe3eaa10d8520d8f3405375b74a101d92d1c8865d0b2d806e35ea733cd7c9103c41c192a1be14161c

          • C:\Windows\SysWOW64\installd.exe

            Filesize

            108KB

            MD5

            7da212ad069eba8eac247a89fbe01aa2

            SHA1

            e24603bcc1f0aee5eddcc0117b285930303a5a5f

            SHA256

            19af0f79284e9e54be4cf19bad15fd4a40c5e611351def0e32b7e38abff4a17e

            SHA512

            437c2c518ec74f0f29dffc98c135ed615d93c60ca255a2ffe3eaa10d8520d8f3405375b74a101d92d1c8865d0b2d806e35ea733cd7c9103c41c192a1be14161c

          • C:\Windows\SysWOW64\nethtsrv.exe

            Filesize

            176KB

            MD5

            7bbd88be67ef12ceebc7fc214e90e5ef

            SHA1

            13b34571bfde53f87befaecb7072285e717e56e9

            SHA256

            8472d6bef7d6a85fccda7cc3e9a5b8fa9d24676cee219b94ebd2fce7960aee66

            SHA512

            b8a717ea8e1347636297f2221d56fd4b31f424de1c3de2f22098aa4b10cb38ac50a67a50e05a3d2d599a6be9ff3eaff1e5c347c902b08195ee3a6326031bfd4a

          • C:\Windows\SysWOW64\nethtsrv.exe

            Filesize

            176KB

            MD5

            7bbd88be67ef12ceebc7fc214e90e5ef

            SHA1

            13b34571bfde53f87befaecb7072285e717e56e9

            SHA256

            8472d6bef7d6a85fccda7cc3e9a5b8fa9d24676cee219b94ebd2fce7960aee66

            SHA512

            b8a717ea8e1347636297f2221d56fd4b31f424de1c3de2f22098aa4b10cb38ac50a67a50e05a3d2d599a6be9ff3eaff1e5c347c902b08195ee3a6326031bfd4a

          • C:\Windows\SysWOW64\nethtsrv.exe

            Filesize

            176KB

            MD5

            7bbd88be67ef12ceebc7fc214e90e5ef

            SHA1

            13b34571bfde53f87befaecb7072285e717e56e9

            SHA256

            8472d6bef7d6a85fccda7cc3e9a5b8fa9d24676cee219b94ebd2fce7960aee66

            SHA512

            b8a717ea8e1347636297f2221d56fd4b31f424de1c3de2f22098aa4b10cb38ac50a67a50e05a3d2d599a6be9ff3eaff1e5c347c902b08195ee3a6326031bfd4a

          • C:\Windows\SysWOW64\netupdsrv.exe

            Filesize

            158KB

            MD5

            448db523022d8a066e3548702df8237f

            SHA1

            65b54897ae62ba28379aa0202f59f2ed11cafb20

            SHA256

            e4dd3de24424204a849d0f57fbaf22fb74c9f8330e92e785a5dd197cdd42f1a5

            SHA512

            b9573f588e34ed4ec5f937be41279daaa21eb996e907b73c1ac9384acb993ba964763d81a3d91a74d840a2221ca401f27abc867d9e83451892058d0ce618d05d

          • C:\Windows\SysWOW64\netupdsrv.exe

            Filesize

            158KB

            MD5

            448db523022d8a066e3548702df8237f

            SHA1

            65b54897ae62ba28379aa0202f59f2ed11cafb20

            SHA256

            e4dd3de24424204a849d0f57fbaf22fb74c9f8330e92e785a5dd197cdd42f1a5

            SHA512

            b9573f588e34ed4ec5f937be41279daaa21eb996e907b73c1ac9384acb993ba964763d81a3d91a74d840a2221ca401f27abc867d9e83451892058d0ce618d05d

          • C:\Windows\SysWOW64\netupdsrv.exe

            Filesize

            158KB

            MD5

            448db523022d8a066e3548702df8237f

            SHA1

            65b54897ae62ba28379aa0202f59f2ed11cafb20

            SHA256

            e4dd3de24424204a849d0f57fbaf22fb74c9f8330e92e785a5dd197cdd42f1a5

            SHA512

            b9573f588e34ed4ec5f937be41279daaa21eb996e907b73c1ac9384acb993ba964763d81a3d91a74d840a2221ca401f27abc867d9e83451892058d0ce618d05d

          • memory/868-158-0x0000000000000000-mapping.dmp

          • memory/1412-137-0x0000000000000000-mapping.dmp

          • memory/3836-132-0x0000000000360000-0x00000000007BE000-memory.dmp

            Filesize

            4.4MB

          • memory/3836-168-0x0000000000360000-0x00000000007BE000-memory.dmp

            Filesize

            4.4MB

          • memory/3908-136-0x0000000000000000-mapping.dmp

          • memory/3916-141-0x0000000000000000-mapping.dmp

          • memory/4100-165-0x0000000000000000-mapping.dmp

          • memory/4136-147-0x0000000000000000-mapping.dmp

          • memory/4260-140-0x0000000000000000-mapping.dmp

          • memory/4484-166-0x0000000000000000-mapping.dmp

          • memory/4604-142-0x0000000000000000-mapping.dmp

          • memory/4752-159-0x0000000000000000-mapping.dmp

          • memory/4936-153-0x0000000000000000-mapping.dmp