Analysis

  • max time kernel
    142s
  • max time network
    167s
  • 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 10:15

General

  • Target

    aea9545d7562ccfbaeb9206097ff27b4f2f251cf4cc8f01bab5baceb129ad5ef.exe

  • Size

    604KB

  • MD5

    f00015030ffa9adaf643e1899fbbc2e5

  • SHA1

    c8dd12a9fc4059587b8160eac345fada44da9360

  • SHA256

    aea9545d7562ccfbaeb9206097ff27b4f2f251cf4cc8f01bab5baceb129ad5ef

  • SHA512

    58fcdbed9089b17f826635be363a8746e3909261a38eb3b8c46e6e09c9cd5ed2bd5b3c11da996bb1ae3805a8a680c1e2c3d633dc793af7baa00dbc38938a5db3

  • SSDEEP

    12288:LIny5DYTfIVgZTXs1MynurBhVEJ3Dyf5gJ5Qrdeo//deP3A:zUTfyUTXCMynurBHFKMdeotMA

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\aea9545d7562ccfbaeb9206097ff27b4f2f251cf4cc8f01bab5baceb129ad5ef.exe
    "C:\Users\Admin\AppData\Local\Temp\aea9545d7562ccfbaeb9206097ff27b4f2f251cf4cc8f01bab5baceb129ad5ef.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:1004
    • C:\Windows\SysWOW64\net.exe
      net stop nethttpservice
      2⤵
      • Suspicious use of WriteProcessMemory
      PID:508
      • C:\Windows\SysWOW64\net1.exe
        C:\Windows\system32\net1 stop nethttpservice
        3⤵
          PID:3488
      • C:\Windows\SysWOW64\net.exe
        net stop serviceupdater
        2⤵
        • Suspicious use of WriteProcessMemory
        PID:4436
        • C:\Windows\SysWOW64\net1.exe
          C:\Windows\system32\net1 stop serviceupdater
          3⤵
            PID:1040
        • C:\Windows\SysWOW64\installd.exe
          "C:\Windows\system32\installd.exe" nethfdrv
          2⤵
          • Executes dropped EXE
          • Loads dropped DLL
          PID:3500
        • C:\Windows\SysWOW64\nethtsrv.exe
          "C:\Windows\system32\nethtsrv.exe" -nfdi
          2⤵
          • Executes dropped EXE
          • Loads dropped DLL
          PID:3496
        • C:\Windows\SysWOW64\netupdsrv.exe
          "C:\Windows\system32\netupdsrv.exe" -nfdi
          2⤵
          • Executes dropped EXE
          PID:868
        • C:\Windows\SysWOW64\net.exe
          net start nethttpservice
          2⤵
          • Suspicious use of WriteProcessMemory
          PID:4912
          • C:\Windows\SysWOW64\net1.exe
            C:\Windows\system32\net1 start nethttpservice
            3⤵
              PID:1700
          • C:\Windows\SysWOW64\net.exe
            net start serviceupdater
            2⤵
            • Suspicious use of WriteProcessMemory
            PID:4172
            • C:\Windows\SysWOW64\net1.exe
              C:\Windows\system32\net1 start serviceupdater
              3⤵
                PID:1776
          • 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:1640
          • C:\Windows\SysWOW64\netupdsrv.exe
            C:\Windows\SysWOW64\netupdsrv.exe
            1⤵
            • Executes dropped EXE
            PID:4152

          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:\Users\Admin\AppData\Local\Temp\nsiCEE0.tmp\System.dll
            Filesize

            11KB

            MD5

            c17103ae9072a06da581dec998343fc1

            SHA1

            b72148c6bdfaada8b8c3f950e610ee7cf1da1f8d

            SHA256

            dc58d8ad81cacb0c1ed72e33bff8f23ea40b5252b5bb55d393a0903e6819ae2f

            SHA512

            d32a71aaef18e993f28096d536e41c4d016850721b31171513ce28bbd805a54fd290b7c3e9d935f72e676a1acfb4f0dcc89d95040a0dd29f2b6975855c18986f

          • C:\Users\Admin\AppData\Local\Temp\nsiCEE0.tmp\nsExec.dll
            Filesize

            6KB

            MD5

            acc2b699edfea5bf5aae45aba3a41e96

            SHA1

            d2accf4d494e43ceb2cff69abe4dd17147d29cc2

            SHA256

            168a974eaa3f588d759db3f47c1a9fdc3494ba1fa1a73a84e5e3b2a4d58abd7e

            SHA512

            e29ea10ada98c71a18273b04f44f385b120d4e8473e441ce5748cfa44a23648814f2656f429b85440157988c88de776c6ac008dc38bf09cbb746c230a46c69fe

          • C:\Users\Admin\AppData\Local\Temp\nsiCEE0.tmp\nsExec.dll
            Filesize

            6KB

            MD5

            acc2b699edfea5bf5aae45aba3a41e96

            SHA1

            d2accf4d494e43ceb2cff69abe4dd17147d29cc2

            SHA256

            168a974eaa3f588d759db3f47c1a9fdc3494ba1fa1a73a84e5e3b2a4d58abd7e

            SHA512

            e29ea10ada98c71a18273b04f44f385b120d4e8473e441ce5748cfa44a23648814f2656f429b85440157988c88de776c6ac008dc38bf09cbb746c230a46c69fe

          • C:\Users\Admin\AppData\Local\Temp\nsiCEE0.tmp\nsExec.dll
            Filesize

            6KB

            MD5

            acc2b699edfea5bf5aae45aba3a41e96

            SHA1

            d2accf4d494e43ceb2cff69abe4dd17147d29cc2

            SHA256

            168a974eaa3f588d759db3f47c1a9fdc3494ba1fa1a73a84e5e3b2a4d58abd7e

            SHA512

            e29ea10ada98c71a18273b04f44f385b120d4e8473e441ce5748cfa44a23648814f2656f429b85440157988c88de776c6ac008dc38bf09cbb746c230a46c69fe

          • C:\Users\Admin\AppData\Local\Temp\nsiCEE0.tmp\nsExec.dll
            Filesize

            6KB

            MD5

            acc2b699edfea5bf5aae45aba3a41e96

            SHA1

            d2accf4d494e43ceb2cff69abe4dd17147d29cc2

            SHA256

            168a974eaa3f588d759db3f47c1a9fdc3494ba1fa1a73a84e5e3b2a4d58abd7e

            SHA512

            e29ea10ada98c71a18273b04f44f385b120d4e8473e441ce5748cfa44a23648814f2656f429b85440157988c88de776c6ac008dc38bf09cbb746c230a46c69fe

          • C:\Users\Admin\AppData\Local\Temp\nsiCEE0.tmp\nsExec.dll
            Filesize

            6KB

            MD5

            acc2b699edfea5bf5aae45aba3a41e96

            SHA1

            d2accf4d494e43ceb2cff69abe4dd17147d29cc2

            SHA256

            168a974eaa3f588d759db3f47c1a9fdc3494ba1fa1a73a84e5e3b2a4d58abd7e

            SHA512

            e29ea10ada98c71a18273b04f44f385b120d4e8473e441ce5748cfa44a23648814f2656f429b85440157988c88de776c6ac008dc38bf09cbb746c230a46c69fe

          • C:\Users\Admin\AppData\Local\Temp\nsiCEE0.tmp\nsExec.dll
            Filesize

            6KB

            MD5

            acc2b699edfea5bf5aae45aba3a41e96

            SHA1

            d2accf4d494e43ceb2cff69abe4dd17147d29cc2

            SHA256

            168a974eaa3f588d759db3f47c1a9fdc3494ba1fa1a73a84e5e3b2a4d58abd7e

            SHA512

            e29ea10ada98c71a18273b04f44f385b120d4e8473e441ce5748cfa44a23648814f2656f429b85440157988c88de776c6ac008dc38bf09cbb746c230a46c69fe

          • C:\Users\Admin\AppData\Local\Temp\nsiCEE0.tmp\nsExec.dll
            Filesize

            6KB

            MD5

            acc2b699edfea5bf5aae45aba3a41e96

            SHA1

            d2accf4d494e43ceb2cff69abe4dd17147d29cc2

            SHA256

            168a974eaa3f588d759db3f47c1a9fdc3494ba1fa1a73a84e5e3b2a4d58abd7e

            SHA512

            e29ea10ada98c71a18273b04f44f385b120d4e8473e441ce5748cfa44a23648814f2656f429b85440157988c88de776c6ac008dc38bf09cbb746c230a46c69fe

          • C:\Users\Admin\AppData\Local\Temp\nsiCEE0.tmp\nsExec.dll
            Filesize

            6KB

            MD5

            acc2b699edfea5bf5aae45aba3a41e96

            SHA1

            d2accf4d494e43ceb2cff69abe4dd17147d29cc2

            SHA256

            168a974eaa3f588d759db3f47c1a9fdc3494ba1fa1a73a84e5e3b2a4d58abd7e

            SHA512

            e29ea10ada98c71a18273b04f44f385b120d4e8473e441ce5748cfa44a23648814f2656f429b85440157988c88de776c6ac008dc38bf09cbb746c230a46c69fe

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

            106KB

            MD5

            efa866175ada12da24af61259618268a

            SHA1

            2f8751251df6121be91e6d464442dd4479e9efc5

            SHA256

            9dd0bdddaeeb4628b20733806b53f22c8ad5ec66728f1e13b0a8dda38823bdf0

            SHA512

            5778f006d3c82f5b799d44b363e3a8633e6334f9e62ae5f6259b2ccae3e90aa4f5551416a9b91da602161d1e1fd1fa25e756f716e1450e6772c0978ac546fd75

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

            106KB

            MD5

            efa866175ada12da24af61259618268a

            SHA1

            2f8751251df6121be91e6d464442dd4479e9efc5

            SHA256

            9dd0bdddaeeb4628b20733806b53f22c8ad5ec66728f1e13b0a8dda38823bdf0

            SHA512

            5778f006d3c82f5b799d44b363e3a8633e6334f9e62ae5f6259b2ccae3e90aa4f5551416a9b91da602161d1e1fd1fa25e756f716e1450e6772c0978ac546fd75

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

            106KB

            MD5

            efa866175ada12da24af61259618268a

            SHA1

            2f8751251df6121be91e6d464442dd4479e9efc5

            SHA256

            9dd0bdddaeeb4628b20733806b53f22c8ad5ec66728f1e13b0a8dda38823bdf0

            SHA512

            5778f006d3c82f5b799d44b363e3a8633e6334f9e62ae5f6259b2ccae3e90aa4f5551416a9b91da602161d1e1fd1fa25e756f716e1450e6772c0978ac546fd75

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

            106KB

            MD5

            efa866175ada12da24af61259618268a

            SHA1

            2f8751251df6121be91e6d464442dd4479e9efc5

            SHA256

            9dd0bdddaeeb4628b20733806b53f22c8ad5ec66728f1e13b0a8dda38823bdf0

            SHA512

            5778f006d3c82f5b799d44b363e3a8633e6334f9e62ae5f6259b2ccae3e90aa4f5551416a9b91da602161d1e1fd1fa25e756f716e1450e6772c0978ac546fd75

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

            244KB

            MD5

            85e21844e4bb0353142e268348ff030b

            SHA1

            92a208130fd20db25a40fdab860e0fd9babdd74c

            SHA256

            2938ae9e2cd2fbeb293f5de83b271fa0c7611e94dfa48e0358c3ca21806cf930

            SHA512

            3b17408d2f0fcf484e57d657bece8dcbd32e424961544a66175850f946b1265a3aa0f6cb849bced329072127323350256ae91d792f0bc8fa0302af1d2672e642

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

            244KB

            MD5

            85e21844e4bb0353142e268348ff030b

            SHA1

            92a208130fd20db25a40fdab860e0fd9babdd74c

            SHA256

            2938ae9e2cd2fbeb293f5de83b271fa0c7611e94dfa48e0358c3ca21806cf930

            SHA512

            3b17408d2f0fcf484e57d657bece8dcbd32e424961544a66175850f946b1265a3aa0f6cb849bced329072127323350256ae91d792f0bc8fa0302af1d2672e642

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

            244KB

            MD5

            85e21844e4bb0353142e268348ff030b

            SHA1

            92a208130fd20db25a40fdab860e0fd9babdd74c

            SHA256

            2938ae9e2cd2fbeb293f5de83b271fa0c7611e94dfa48e0358c3ca21806cf930

            SHA512

            3b17408d2f0fcf484e57d657bece8dcbd32e424961544a66175850f946b1265a3aa0f6cb849bced329072127323350256ae91d792f0bc8fa0302af1d2672e642

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

            108KB

            MD5

            54611b62485f00ff0d5a939fa616de62

            SHA1

            9d8a89807200a8c72f95f1fde6e145aeea4c61d2

            SHA256

            4a63cf2ff50e8e9dea7b1ab209030353f32fd7930d00f71f2aa41100365768c1

            SHA512

            8c7f0cd3ca38db14fe2a499070bc3cb49fde3b8f724ca8c1432633632a4fdb7476da5e68704577ff1c6ade52142e48834571aa5998b84fefe90f04b24730447b

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

            108KB

            MD5

            54611b62485f00ff0d5a939fa616de62

            SHA1

            9d8a89807200a8c72f95f1fde6e145aeea4c61d2

            SHA256

            4a63cf2ff50e8e9dea7b1ab209030353f32fd7930d00f71f2aa41100365768c1

            SHA512

            8c7f0cd3ca38db14fe2a499070bc3cb49fde3b8f724ca8c1432633632a4fdb7476da5e68704577ff1c6ade52142e48834571aa5998b84fefe90f04b24730447b

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

            177KB

            MD5

            d752d19a8b7b915094f937e2f5a344bb

            SHA1

            80fdfda6125031db73d640a1f380a45168c5de2b

            SHA256

            2c8af71bada38361589d24aa4bd3697766e7613f13208184991fa0ad29084b26

            SHA512

            e7b5b5daabf57103532bdd98550fdc0edd65cc0e804fa36014c61df3ee37b00cc74bbe2153c71b348fc8d2a5a19aaf729cb9e2997629851c2331c5513e6d5c9e

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

            177KB

            MD5

            d752d19a8b7b915094f937e2f5a344bb

            SHA1

            80fdfda6125031db73d640a1f380a45168c5de2b

            SHA256

            2c8af71bada38361589d24aa4bd3697766e7613f13208184991fa0ad29084b26

            SHA512

            e7b5b5daabf57103532bdd98550fdc0edd65cc0e804fa36014c61df3ee37b00cc74bbe2153c71b348fc8d2a5a19aaf729cb9e2997629851c2331c5513e6d5c9e

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

            177KB

            MD5

            d752d19a8b7b915094f937e2f5a344bb

            SHA1

            80fdfda6125031db73d640a1f380a45168c5de2b

            SHA256

            2c8af71bada38361589d24aa4bd3697766e7613f13208184991fa0ad29084b26

            SHA512

            e7b5b5daabf57103532bdd98550fdc0edd65cc0e804fa36014c61df3ee37b00cc74bbe2153c71b348fc8d2a5a19aaf729cb9e2997629851c2331c5513e6d5c9e

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

            158KB

            MD5

            446c1af8c3fe6779cb5c3d703862411b

            SHA1

            e62fb1b2068327515f11441526f807c91e98d04c

            SHA256

            c2d8b6b25748e83e0adc41b0027f19ffe5e4dc2aa4122624d9fd3a0635cb474f

            SHA512

            486b752f9fa78363531716199a243410095cf271b577783bd8fcb9e9b463a7a1db4a0ce8f96b0f7ac97b0f1f1316f41fa9b7c9528f1667e4917e8e4521620181

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

            158KB

            MD5

            446c1af8c3fe6779cb5c3d703862411b

            SHA1

            e62fb1b2068327515f11441526f807c91e98d04c

            SHA256

            c2d8b6b25748e83e0adc41b0027f19ffe5e4dc2aa4122624d9fd3a0635cb474f

            SHA512

            486b752f9fa78363531716199a243410095cf271b577783bd8fcb9e9b463a7a1db4a0ce8f96b0f7ac97b0f1f1316f41fa9b7c9528f1667e4917e8e4521620181

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

            158KB

            MD5

            446c1af8c3fe6779cb5c3d703862411b

            SHA1

            e62fb1b2068327515f11441526f807c91e98d04c

            SHA256

            c2d8b6b25748e83e0adc41b0027f19ffe5e4dc2aa4122624d9fd3a0635cb474f

            SHA512

            486b752f9fa78363531716199a243410095cf271b577783bd8fcb9e9b463a7a1db4a0ce8f96b0f7ac97b0f1f1316f41fa9b7c9528f1667e4917e8e4521620181

          • memory/508-135-0x0000000000000000-mapping.dmp
          • memory/868-153-0x0000000000000000-mapping.dmp
          • memory/1004-137-0x0000000000360000-0x00000000007BE000-memory.dmp
            Filesize

            4.4MB

          • memory/1004-168-0x0000000000360000-0x00000000007BE000-memory.dmp
            Filesize

            4.4MB

          • memory/1040-141-0x0000000000000000-mapping.dmp
          • memory/1700-159-0x0000000000000000-mapping.dmp
          • memory/1776-166-0x0000000000000000-mapping.dmp
          • memory/3488-136-0x0000000000000000-mapping.dmp
          • memory/3496-147-0x0000000000000000-mapping.dmp
          • memory/3500-142-0x0000000000000000-mapping.dmp
          • memory/4172-165-0x0000000000000000-mapping.dmp
          • memory/4436-140-0x0000000000000000-mapping.dmp
          • memory/4912-158-0x0000000000000000-mapping.dmp