Analysis

  • max time kernel
    90s
  • max time network
    156s
  • 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 11:00

General

  • Target

    085ba70145053aa649a99f3e906583df8ee89a2c1a1b6416e1f22a266c08c566.exe

  • Size

    446KB

  • MD5

    8cbf7e0c4cd340603430df1937520c26

  • SHA1

    eca0fb8687c8d78cf3464aebf0eef3c6e01e7473

  • SHA256

    085ba70145053aa649a99f3e906583df8ee89a2c1a1b6416e1f22a266c08c566

  • SHA512

    0af91281cc4ed8d3ea7261ae3b2eb8339291ce08b6ac75ecc9cc3811ebe69d02177bcaf1e0a8cfedf8ae2f928ccd073d70becb051257418ba0ee6f22a823eed3

  • SSDEEP

    12288:+RK0yh+00yc8NRQE1Y8ldpWPYtE/NUV2EEsp:+Y0W+00B8zhjiY7

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\085ba70145053aa649a99f3e906583df8ee89a2c1a1b6416e1f22a266c08c566.exe
    "C:\Users\Admin\AppData\Local\Temp\085ba70145053aa649a99f3e906583df8ee89a2c1a1b6416e1f22a266c08c566.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:4180
    • C:\Windows\SysWOW64\net.exe
      net stop nethttpservice
      2⤵
      • Suspicious use of WriteProcessMemory
      PID:2276
      • C:\Windows\SysWOW64\net1.exe
        C:\Windows\system32\net1 stop nethttpservice
        3⤵
          PID:3660
      • C:\Windows\SysWOW64\net.exe
        net stop serviceupdater
        2⤵
        • Suspicious use of WriteProcessMemory
        PID:3552
        • C:\Windows\SysWOW64\net1.exe
          C:\Windows\system32\net1 stop serviceupdater
          3⤵
            PID:4172
        • C:\Windows\SysWOW64\installd.exe
          "C:\Windows\system32\installd.exe" nethfdrv
          2⤵
          • Executes dropped EXE
          • Loads dropped DLL
          PID:1320
        • C:\Windows\SysWOW64\nethtsrv.exe
          "C:\Windows\system32\nethtsrv.exe" -nfdi
          2⤵
          • Executes dropped EXE
          • Loads dropped DLL
          PID:224
        • C:\Windows\SysWOW64\netupdsrv.exe
          "C:\Windows\system32\netupdsrv.exe" -nfdi
          2⤵
          • Executes dropped EXE
          PID:2012
        • C:\Windows\SysWOW64\net.exe
          net start nethttpservice
          2⤵
          • Suspicious use of WriteProcessMemory
          PID:1184
          • C:\Windows\SysWOW64\net1.exe
            C:\Windows\system32\net1 start nethttpservice
            3⤵
              PID:4336
          • C:\Windows\SysWOW64\net.exe
            net start serviceupdater
            2⤵
            • Suspicious use of WriteProcessMemory
            PID:548
            • C:\Windows\SysWOW64\net1.exe
              C:\Windows\system32\net1 start serviceupdater
              3⤵
                PID:1440
          • 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:3888
          • C:\Windows\SysWOW64\netupdsrv.exe
            C:\Windows\SysWOW64\netupdsrv.exe
            1⤵
            • Executes dropped EXE
            PID:4276

          Network

          MITRE ATT&CK Enterprise v6

          Replay Monitor

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          Downloads

          • C:\Users\Admin\AppData\Local\Temp\nsuB9B2.tmp\System.dll

            Filesize

            11KB

            MD5

            c17103ae9072a06da581dec998343fc1

            SHA1

            b72148c6bdfaada8b8c3f950e610ee7cf1da1f8d

            SHA256

            dc58d8ad81cacb0c1ed72e33bff8f23ea40b5252b5bb55d393a0903e6819ae2f

            SHA512

            d32a71aaef18e993f28096d536e41c4d016850721b31171513ce28bbd805a54fd290b7c3e9d935f72e676a1acfb4f0dcc89d95040a0dd29f2b6975855c18986f

          • C:\Users\Admin\AppData\Local\Temp\nsuB9B2.tmp\nsExec.dll

            Filesize

            6KB

            MD5

            acc2b699edfea5bf5aae45aba3a41e96

            SHA1

            d2accf4d494e43ceb2cff69abe4dd17147d29cc2

            SHA256

            168a974eaa3f588d759db3f47c1a9fdc3494ba1fa1a73a84e5e3b2a4d58abd7e

            SHA512

            e29ea10ada98c71a18273b04f44f385b120d4e8473e441ce5748cfa44a23648814f2656f429b85440157988c88de776c6ac008dc38bf09cbb746c230a46c69fe

          • C:\Users\Admin\AppData\Local\Temp\nsuB9B2.tmp\nsExec.dll

            Filesize

            6KB

            MD5

            acc2b699edfea5bf5aae45aba3a41e96

            SHA1

            d2accf4d494e43ceb2cff69abe4dd17147d29cc2

            SHA256

            168a974eaa3f588d759db3f47c1a9fdc3494ba1fa1a73a84e5e3b2a4d58abd7e

            SHA512

            e29ea10ada98c71a18273b04f44f385b120d4e8473e441ce5748cfa44a23648814f2656f429b85440157988c88de776c6ac008dc38bf09cbb746c230a46c69fe

          • C:\Users\Admin\AppData\Local\Temp\nsuB9B2.tmp\nsExec.dll

            Filesize

            6KB

            MD5

            acc2b699edfea5bf5aae45aba3a41e96

            SHA1

            d2accf4d494e43ceb2cff69abe4dd17147d29cc2

            SHA256

            168a974eaa3f588d759db3f47c1a9fdc3494ba1fa1a73a84e5e3b2a4d58abd7e

            SHA512

            e29ea10ada98c71a18273b04f44f385b120d4e8473e441ce5748cfa44a23648814f2656f429b85440157988c88de776c6ac008dc38bf09cbb746c230a46c69fe

          • C:\Users\Admin\AppData\Local\Temp\nsuB9B2.tmp\nsExec.dll

            Filesize

            6KB

            MD5

            acc2b699edfea5bf5aae45aba3a41e96

            SHA1

            d2accf4d494e43ceb2cff69abe4dd17147d29cc2

            SHA256

            168a974eaa3f588d759db3f47c1a9fdc3494ba1fa1a73a84e5e3b2a4d58abd7e

            SHA512

            e29ea10ada98c71a18273b04f44f385b120d4e8473e441ce5748cfa44a23648814f2656f429b85440157988c88de776c6ac008dc38bf09cbb746c230a46c69fe

          • C:\Users\Admin\AppData\Local\Temp\nsuB9B2.tmp\nsExec.dll

            Filesize

            6KB

            MD5

            acc2b699edfea5bf5aae45aba3a41e96

            SHA1

            d2accf4d494e43ceb2cff69abe4dd17147d29cc2

            SHA256

            168a974eaa3f588d759db3f47c1a9fdc3494ba1fa1a73a84e5e3b2a4d58abd7e

            SHA512

            e29ea10ada98c71a18273b04f44f385b120d4e8473e441ce5748cfa44a23648814f2656f429b85440157988c88de776c6ac008dc38bf09cbb746c230a46c69fe

          • C:\Users\Admin\AppData\Local\Temp\nsuB9B2.tmp\nsExec.dll

            Filesize

            6KB

            MD5

            acc2b699edfea5bf5aae45aba3a41e96

            SHA1

            d2accf4d494e43ceb2cff69abe4dd17147d29cc2

            SHA256

            168a974eaa3f588d759db3f47c1a9fdc3494ba1fa1a73a84e5e3b2a4d58abd7e

            SHA512

            e29ea10ada98c71a18273b04f44f385b120d4e8473e441ce5748cfa44a23648814f2656f429b85440157988c88de776c6ac008dc38bf09cbb746c230a46c69fe

          • C:\Users\Admin\AppData\Local\Temp\nsuB9B2.tmp\nsExec.dll

            Filesize

            6KB

            MD5

            acc2b699edfea5bf5aae45aba3a41e96

            SHA1

            d2accf4d494e43ceb2cff69abe4dd17147d29cc2

            SHA256

            168a974eaa3f588d759db3f47c1a9fdc3494ba1fa1a73a84e5e3b2a4d58abd7e

            SHA512

            e29ea10ada98c71a18273b04f44f385b120d4e8473e441ce5748cfa44a23648814f2656f429b85440157988c88de776c6ac008dc38bf09cbb746c230a46c69fe

          • C:\Users\Admin\AppData\Local\Temp\nsuB9B2.tmp\nsExec.dll

            Filesize

            6KB

            MD5

            acc2b699edfea5bf5aae45aba3a41e96

            SHA1

            d2accf4d494e43ceb2cff69abe4dd17147d29cc2

            SHA256

            168a974eaa3f588d759db3f47c1a9fdc3494ba1fa1a73a84e5e3b2a4d58abd7e

            SHA512

            e29ea10ada98c71a18273b04f44f385b120d4e8473e441ce5748cfa44a23648814f2656f429b85440157988c88de776c6ac008dc38bf09cbb746c230a46c69fe

          • C:\Windows\SysWOW64\hfnapi.dll

            Filesize

            106KB

            MD5

            025b90cbfe0309b7a0257a2464acbfce

            SHA1

            54dd92962399f30fd3cf810ddbb97f05ddf319b0

            SHA256

            b587057b8aad29dfa72020585cc21a0cd4c114b3013d4b71e6a6c3050393706b

            SHA512

            a53e99bce1a9576e23e6a564282749407db0ba571e3c61606409addc52e3f25891cbf583c6b2494d4b87924a7a9724e215a70dfae637494a01bc3d5b8fd8429c

          • C:\Windows\SysWOW64\hfnapi.dll

            Filesize

            106KB

            MD5

            025b90cbfe0309b7a0257a2464acbfce

            SHA1

            54dd92962399f30fd3cf810ddbb97f05ddf319b0

            SHA256

            b587057b8aad29dfa72020585cc21a0cd4c114b3013d4b71e6a6c3050393706b

            SHA512

            a53e99bce1a9576e23e6a564282749407db0ba571e3c61606409addc52e3f25891cbf583c6b2494d4b87924a7a9724e215a70dfae637494a01bc3d5b8fd8429c

          • C:\Windows\SysWOW64\hfnapi.dll

            Filesize

            106KB

            MD5

            025b90cbfe0309b7a0257a2464acbfce

            SHA1

            54dd92962399f30fd3cf810ddbb97f05ddf319b0

            SHA256

            b587057b8aad29dfa72020585cc21a0cd4c114b3013d4b71e6a6c3050393706b

            SHA512

            a53e99bce1a9576e23e6a564282749407db0ba571e3c61606409addc52e3f25891cbf583c6b2494d4b87924a7a9724e215a70dfae637494a01bc3d5b8fd8429c

          • C:\Windows\SysWOW64\hfnapi.dll

            Filesize

            106KB

            MD5

            025b90cbfe0309b7a0257a2464acbfce

            SHA1

            54dd92962399f30fd3cf810ddbb97f05ddf319b0

            SHA256

            b587057b8aad29dfa72020585cc21a0cd4c114b3013d4b71e6a6c3050393706b

            SHA512

            a53e99bce1a9576e23e6a564282749407db0ba571e3c61606409addc52e3f25891cbf583c6b2494d4b87924a7a9724e215a70dfae637494a01bc3d5b8fd8429c

          • C:\Windows\SysWOW64\hfpapi.dll

            Filesize

            241KB

            MD5

            1c8d105e7006e917b205a07dfb2eaa6f

            SHA1

            8336e02761a3e957210ae27ff89ff75a5908df80

            SHA256

            20c3c55f347f40fb251535926f7d32676bc756baca64b5f2a5e7fda081df05b1

            SHA512

            56235314993f226795997fd7afc2638f5eb7757c98c5780aa6c13d871afdbb898760f1ddb610910ccc45de86834b8855e0d27b6ef03810be6c70490074eec0e9

          • C:\Windows\SysWOW64\hfpapi.dll

            Filesize

            241KB

            MD5

            1c8d105e7006e917b205a07dfb2eaa6f

            SHA1

            8336e02761a3e957210ae27ff89ff75a5908df80

            SHA256

            20c3c55f347f40fb251535926f7d32676bc756baca64b5f2a5e7fda081df05b1

            SHA512

            56235314993f226795997fd7afc2638f5eb7757c98c5780aa6c13d871afdbb898760f1ddb610910ccc45de86834b8855e0d27b6ef03810be6c70490074eec0e9

          • C:\Windows\SysWOW64\hfpapi.dll

            Filesize

            241KB

            MD5

            1c8d105e7006e917b205a07dfb2eaa6f

            SHA1

            8336e02761a3e957210ae27ff89ff75a5908df80

            SHA256

            20c3c55f347f40fb251535926f7d32676bc756baca64b5f2a5e7fda081df05b1

            SHA512

            56235314993f226795997fd7afc2638f5eb7757c98c5780aa6c13d871afdbb898760f1ddb610910ccc45de86834b8855e0d27b6ef03810be6c70490074eec0e9

          • C:\Windows\SysWOW64\installd.exe

            Filesize

            108KB

            MD5

            4524263881ec19f63e803b6db2570ac3

            SHA1

            698df216c45d5b58767d26875cb105a9f120e2a7

            SHA256

            570706dae7382a1ed633e530d4bf45dfce13a2ed61f1713d7218839e875ba721

            SHA512

            308e20cba65affaf33e3b1f766103e0de11eb6d00884eb05cc346c30829d20c2668e538417c139219f5894159764714c73423e098978ccae331122c17517fb8a

          • C:\Windows\SysWOW64\installd.exe

            Filesize

            108KB

            MD5

            4524263881ec19f63e803b6db2570ac3

            SHA1

            698df216c45d5b58767d26875cb105a9f120e2a7

            SHA256

            570706dae7382a1ed633e530d4bf45dfce13a2ed61f1713d7218839e875ba721

            SHA512

            308e20cba65affaf33e3b1f766103e0de11eb6d00884eb05cc346c30829d20c2668e538417c139219f5894159764714c73423e098978ccae331122c17517fb8a

          • C:\Windows\SysWOW64\nethtsrv.exe

            Filesize

            176KB

            MD5

            ae683c1122091cbb1d2fb3fa2ad06499

            SHA1

            1967945be0b71f3e824617ba93b49dd11496085e

            SHA256

            3786a04003239a4c00b50797cf208576efd3337687b77aafa0f0261608c4bd6a

            SHA512

            ed49fd2c8f04dd54cfb60c83dbaef41c9675cc193a4052291c0f9f2a18b252cfd622a9c30caf323aacfde26b27e65fb7ccd501ba6cb7e4ac4ac27483e6528146

          • C:\Windows\SysWOW64\nethtsrv.exe

            Filesize

            176KB

            MD5

            ae683c1122091cbb1d2fb3fa2ad06499

            SHA1

            1967945be0b71f3e824617ba93b49dd11496085e

            SHA256

            3786a04003239a4c00b50797cf208576efd3337687b77aafa0f0261608c4bd6a

            SHA512

            ed49fd2c8f04dd54cfb60c83dbaef41c9675cc193a4052291c0f9f2a18b252cfd622a9c30caf323aacfde26b27e65fb7ccd501ba6cb7e4ac4ac27483e6528146

          • C:\Windows\SysWOW64\nethtsrv.exe

            Filesize

            176KB

            MD5

            ae683c1122091cbb1d2fb3fa2ad06499

            SHA1

            1967945be0b71f3e824617ba93b49dd11496085e

            SHA256

            3786a04003239a4c00b50797cf208576efd3337687b77aafa0f0261608c4bd6a

            SHA512

            ed49fd2c8f04dd54cfb60c83dbaef41c9675cc193a4052291c0f9f2a18b252cfd622a9c30caf323aacfde26b27e65fb7ccd501ba6cb7e4ac4ac27483e6528146

          • C:\Windows\SysWOW64\netupdsrv.exe

            Filesize

            158KB

            MD5

            b45e5907a14af8758809a0047e27ddbb

            SHA1

            40ac8b899135aee735a9ac32c418931beff3bb5e

            SHA256

            2ceab87aa2b02aacd2a796afc477f34af362d035c9e9fb5ec07675e1e4b8b2e8

            SHA512

            28aa9a9c906be16ee295055781f45f70db880db09f30fa77ac42b36d15b4a513f201f490ed2ca4fc07472c10e869210e9c12db7d7e4d78ff44275b98e8d09053

          • C:\Windows\SysWOW64\netupdsrv.exe

            Filesize

            158KB

            MD5

            b45e5907a14af8758809a0047e27ddbb

            SHA1

            40ac8b899135aee735a9ac32c418931beff3bb5e

            SHA256

            2ceab87aa2b02aacd2a796afc477f34af362d035c9e9fb5ec07675e1e4b8b2e8

            SHA512

            28aa9a9c906be16ee295055781f45f70db880db09f30fa77ac42b36d15b4a513f201f490ed2ca4fc07472c10e869210e9c12db7d7e4d78ff44275b98e8d09053

          • C:\Windows\SysWOW64\netupdsrv.exe

            Filesize

            158KB

            MD5

            b45e5907a14af8758809a0047e27ddbb

            SHA1

            40ac8b899135aee735a9ac32c418931beff3bb5e

            SHA256

            2ceab87aa2b02aacd2a796afc477f34af362d035c9e9fb5ec07675e1e4b8b2e8

            SHA512

            28aa9a9c906be16ee295055781f45f70db880db09f30fa77ac42b36d15b4a513f201f490ed2ca4fc07472c10e869210e9c12db7d7e4d78ff44275b98e8d09053

          • memory/224-146-0x0000000000000000-mapping.dmp

          • memory/548-164-0x0000000000000000-mapping.dmp

          • memory/1184-157-0x0000000000000000-mapping.dmp

          • memory/1320-141-0x0000000000000000-mapping.dmp

          • memory/1440-165-0x0000000000000000-mapping.dmp

          • memory/2012-152-0x0000000000000000-mapping.dmp

          • memory/2276-135-0x0000000000000000-mapping.dmp

          • memory/3552-139-0x0000000000000000-mapping.dmp

          • memory/3660-136-0x0000000000000000-mapping.dmp

          • memory/4172-140-0x0000000000000000-mapping.dmp

          • memory/4336-158-0x0000000000000000-mapping.dmp