Analysis

  • max time kernel
    37s
  • max time network
    82s
  • platform
    windows7_x64
  • resource
    win7-20220812-en
  • resource tags

    arch:x64arch:x86image:win7-20220812-enlocale:en-usos:windows7-x64system
  • submitted
    23-11-2022 10:32

General

  • Target

    1b2672b32dba75981f59e1ea05a724737f10586452246fff8878a874d2a8f650.exe

  • Size

    601KB

  • MD5

    fb7a8c31709f024bf55aa37e28e025b3

  • SHA1

    5a2e4eab2432f74e45c44e344552bc5427b38c94

  • SHA256

    1b2672b32dba75981f59e1ea05a724737f10586452246fff8878a874d2a8f650

  • SHA512

    43cccb29b67cca38f13e320439224d479ef5b2f19b73dd020e0733e7e60a784658876efe1f26d417411689cde04c4b0860b35d7a994c953c65980439a6a6205b

  • SSDEEP

    12288:DIny5DYT4TKSIkF+P0+tiW7swrQ61WFO5AG7rSo3ErM4:LUT4WSv+P0NWDrQ6B5Uo0Y

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\1b2672b32dba75981f59e1ea05a724737f10586452246fff8878a874d2a8f650.exe
    "C:\Users\Admin\AppData\Local\Temp\1b2672b32dba75981f59e1ea05a724737f10586452246fff8878a874d2a8f650.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:1864
    • C:\Windows\SysWOW64\net.exe
      net stop nethttpservice
      2⤵
      • Suspicious use of WriteProcessMemory
      PID:2020
      • C:\Windows\SysWOW64\net1.exe
        C:\Windows\system32\net1 stop nethttpservice
        3⤵
          PID:984
      • C:\Windows\SysWOW64\net.exe
        net stop serviceupdater
        2⤵
        • Suspicious use of WriteProcessMemory
        PID:1616
        • C:\Windows\SysWOW64\net1.exe
          C:\Windows\system32\net1 stop serviceupdater
          3⤵
            PID:1560
        • C:\Windows\SysWOW64\installd.exe
          "C:\Windows\system32\installd.exe" nethfdrv
          2⤵
          • Executes dropped EXE
          • Loads dropped DLL
          PID:1804
        • C:\Windows\SysWOW64\nethtsrv.exe
          "C:\Windows\system32\nethtsrv.exe" -nfdi
          2⤵
          • Executes dropped EXE
          • Loads dropped DLL
          PID:600
        • C:\Windows\SysWOW64\netupdsrv.exe
          "C:\Windows\system32\netupdsrv.exe" -nfdi
          2⤵
          • Executes dropped EXE
          PID:324
        • C:\Windows\SysWOW64\net.exe
          net start nethttpservice
          2⤵
          • Suspicious use of WriteProcessMemory
          PID:1396
          • C:\Windows\SysWOW64\net1.exe
            C:\Windows\system32\net1 start nethttpservice
            3⤵
              PID:2024
          • C:\Windows\SysWOW64\net.exe
            net start serviceupdater
            2⤵
            • Suspicious use of WriteProcessMemory
            PID:1380
            • C:\Windows\SysWOW64\net1.exe
              C:\Windows\system32\net1 start serviceupdater
              3⤵
                PID:1632
          • C:\Windows\SysWOW64\nethtsrv.exe
            C:\Windows\SysWOW64\nethtsrv.exe
            1⤵
            • Executes dropped EXE
            • Loads dropped DLL
            • Suspicious use of AdjustPrivilegeToken
            PID:268
          • C:\Windows\SysWOW64\netupdsrv.exe
            C:\Windows\SysWOW64\netupdsrv.exe
            1⤵
            • Executes dropped EXE
            PID:1424

          Network

          MITRE ATT&CK Enterprise v6

          Replay Monitor

          Loading Replay Monitor...

          Downloads

          • C:\Windows\SysWOW64\hfnapi.dll

            Filesize

            106KB

            MD5

            e2ee2e7a34578f93e057509bbd79cb0b

            SHA1

            8cd8a527dc339172e44cdb391b9e8a2879b01781

            SHA256

            32be36355e2923b512b95c23d58bad36bf027b7828070c546862b50b00763754

            SHA512

            9e5768e8efdc9132f9ef3bc7357aca04032ec71a4662d6452c22dd72c9d3e7bba2ee18aa95d7ecc912aa6ad43fa7b5fb3f3349c034c782f0a46ce1a8281701c0

          • C:\Windows\SysWOW64\hfpapi.dll

            Filesize

            240KB

            MD5

            896fa9ed1c16b105b243d1312eb972d6

            SHA1

            ccee6bb53853aeda51de30cf4b6a911867e997d3

            SHA256

            d96233dacd8afff9317e35c79ff613fc09c8610224aa15f25e0b4067328772fa

            SHA512

            8c23de7b7866bc128dadbbd20f9f9184a143d457da3d0ba022da7dc1298a49c12dadcfe43dfffa8a6e00d5cf17e674f1f26fbc5cc56eeca62191d8c72962a496

          • C:\Windows\SysWOW64\installd.exe

            Filesize

            108KB

            MD5

            121643039253ec3b792e6126ac87861d

            SHA1

            30ace05a0877155aea7daa5adab3761a2f124d05

            SHA256

            885f3b14ed05f1cccd88f5f54f4639061c8f261299ee717342dcfa4cc0b5a34b

            SHA512

            b5a268957ebaa921bb52fd65b8d6577faedca5571d2fed1643982477382c1c15bcd33acb9fb05e621a94ae4f5c8225c7d4bea3994a8692d686e8827a3aeab7e4

          • C:\Windows\SysWOW64\nethtsrv.exe

            Filesize

            176KB

            MD5

            d81e343a67559ab8d2630363d1c2bad8

            SHA1

            f898fef5474475b97943444ac655c56fb192dd96

            SHA256

            438b69db58610cf4e6ff1d68ac6ace4e09d4b514853e2a257bd9f0f5a9ab012d

            SHA512

            c19c6bf10dafdfe09538fef9e60f759d5b31f7de043439a86a11e3de5008d5a702f7a066fe89efb3561ca21344b12a0375c65cd43c217dd84540955ec6b8d11a

          • C:\Windows\SysWOW64\nethtsrv.exe

            Filesize

            176KB

            MD5

            d81e343a67559ab8d2630363d1c2bad8

            SHA1

            f898fef5474475b97943444ac655c56fb192dd96

            SHA256

            438b69db58610cf4e6ff1d68ac6ace4e09d4b514853e2a257bd9f0f5a9ab012d

            SHA512

            c19c6bf10dafdfe09538fef9e60f759d5b31f7de043439a86a11e3de5008d5a702f7a066fe89efb3561ca21344b12a0375c65cd43c217dd84540955ec6b8d11a

          • C:\Windows\SysWOW64\netupdsrv.exe

            Filesize

            158KB

            MD5

            10071303d991114b13db7acb72dc3db7

            SHA1

            91a427871bbdfd45c18cabf2f225d0e3a7287d00

            SHA256

            df619d2c8ea8e47b5f8c47c043083e98d7eeef77e2cedda2505d48c72ce797f7

            SHA512

            bfc34c77f0b55f1a8bf05ea469a4e1ee4684f8574c955c5e7835e6b7362aaaf01f6c7c185db3ccd4a068eb234b5b48cf16ee209698767b21d84b0bd4d390e62c

          • C:\Windows\SysWOW64\netupdsrv.exe

            Filesize

            158KB

            MD5

            10071303d991114b13db7acb72dc3db7

            SHA1

            91a427871bbdfd45c18cabf2f225d0e3a7287d00

            SHA256

            df619d2c8ea8e47b5f8c47c043083e98d7eeef77e2cedda2505d48c72ce797f7

            SHA512

            bfc34c77f0b55f1a8bf05ea469a4e1ee4684f8574c955c5e7835e6b7362aaaf01f6c7c185db3ccd4a068eb234b5b48cf16ee209698767b21d84b0bd4d390e62c

          • \Users\Admin\AppData\Local\Temp\nst78CB.tmp\System.dll

            Filesize

            11KB

            MD5

            c17103ae9072a06da581dec998343fc1

            SHA1

            b72148c6bdfaada8b8c3f950e610ee7cf1da1f8d

            SHA256

            dc58d8ad81cacb0c1ed72e33bff8f23ea40b5252b5bb55d393a0903e6819ae2f

            SHA512

            d32a71aaef18e993f28096d536e41c4d016850721b31171513ce28bbd805a54fd290b7c3e9d935f72e676a1acfb4f0dcc89d95040a0dd29f2b6975855c18986f

          • \Users\Admin\AppData\Local\Temp\nst78CB.tmp\nsExec.dll

            Filesize

            6KB

            MD5

            acc2b699edfea5bf5aae45aba3a41e96

            SHA1

            d2accf4d494e43ceb2cff69abe4dd17147d29cc2

            SHA256

            168a974eaa3f588d759db3f47c1a9fdc3494ba1fa1a73a84e5e3b2a4d58abd7e

            SHA512

            e29ea10ada98c71a18273b04f44f385b120d4e8473e441ce5748cfa44a23648814f2656f429b85440157988c88de776c6ac008dc38bf09cbb746c230a46c69fe

          • \Users\Admin\AppData\Local\Temp\nst78CB.tmp\nsExec.dll

            Filesize

            6KB

            MD5

            acc2b699edfea5bf5aae45aba3a41e96

            SHA1

            d2accf4d494e43ceb2cff69abe4dd17147d29cc2

            SHA256

            168a974eaa3f588d759db3f47c1a9fdc3494ba1fa1a73a84e5e3b2a4d58abd7e

            SHA512

            e29ea10ada98c71a18273b04f44f385b120d4e8473e441ce5748cfa44a23648814f2656f429b85440157988c88de776c6ac008dc38bf09cbb746c230a46c69fe

          • \Users\Admin\AppData\Local\Temp\nst78CB.tmp\nsExec.dll

            Filesize

            6KB

            MD5

            acc2b699edfea5bf5aae45aba3a41e96

            SHA1

            d2accf4d494e43ceb2cff69abe4dd17147d29cc2

            SHA256

            168a974eaa3f588d759db3f47c1a9fdc3494ba1fa1a73a84e5e3b2a4d58abd7e

            SHA512

            e29ea10ada98c71a18273b04f44f385b120d4e8473e441ce5748cfa44a23648814f2656f429b85440157988c88de776c6ac008dc38bf09cbb746c230a46c69fe

          • \Users\Admin\AppData\Local\Temp\nst78CB.tmp\nsExec.dll

            Filesize

            6KB

            MD5

            acc2b699edfea5bf5aae45aba3a41e96

            SHA1

            d2accf4d494e43ceb2cff69abe4dd17147d29cc2

            SHA256

            168a974eaa3f588d759db3f47c1a9fdc3494ba1fa1a73a84e5e3b2a4d58abd7e

            SHA512

            e29ea10ada98c71a18273b04f44f385b120d4e8473e441ce5748cfa44a23648814f2656f429b85440157988c88de776c6ac008dc38bf09cbb746c230a46c69fe

          • \Windows\SysWOW64\hfnapi.dll

            Filesize

            106KB

            MD5

            e2ee2e7a34578f93e057509bbd79cb0b

            SHA1

            8cd8a527dc339172e44cdb391b9e8a2879b01781

            SHA256

            32be36355e2923b512b95c23d58bad36bf027b7828070c546862b50b00763754

            SHA512

            9e5768e8efdc9132f9ef3bc7357aca04032ec71a4662d6452c22dd72c9d3e7bba2ee18aa95d7ecc912aa6ad43fa7b5fb3f3349c034c782f0a46ce1a8281701c0

          • \Windows\SysWOW64\hfnapi.dll

            Filesize

            106KB

            MD5

            e2ee2e7a34578f93e057509bbd79cb0b

            SHA1

            8cd8a527dc339172e44cdb391b9e8a2879b01781

            SHA256

            32be36355e2923b512b95c23d58bad36bf027b7828070c546862b50b00763754

            SHA512

            9e5768e8efdc9132f9ef3bc7357aca04032ec71a4662d6452c22dd72c9d3e7bba2ee18aa95d7ecc912aa6ad43fa7b5fb3f3349c034c782f0a46ce1a8281701c0

          • \Windows\SysWOW64\hfnapi.dll

            Filesize

            106KB

            MD5

            e2ee2e7a34578f93e057509bbd79cb0b

            SHA1

            8cd8a527dc339172e44cdb391b9e8a2879b01781

            SHA256

            32be36355e2923b512b95c23d58bad36bf027b7828070c546862b50b00763754

            SHA512

            9e5768e8efdc9132f9ef3bc7357aca04032ec71a4662d6452c22dd72c9d3e7bba2ee18aa95d7ecc912aa6ad43fa7b5fb3f3349c034c782f0a46ce1a8281701c0

          • \Windows\SysWOW64\hfpapi.dll

            Filesize

            240KB

            MD5

            896fa9ed1c16b105b243d1312eb972d6

            SHA1

            ccee6bb53853aeda51de30cf4b6a911867e997d3

            SHA256

            d96233dacd8afff9317e35c79ff613fc09c8610224aa15f25e0b4067328772fa

            SHA512

            8c23de7b7866bc128dadbbd20f9f9184a143d457da3d0ba022da7dc1298a49c12dadcfe43dfffa8a6e00d5cf17e674f1f26fbc5cc56eeca62191d8c72962a496

          • \Windows\SysWOW64\hfpapi.dll

            Filesize

            240KB

            MD5

            896fa9ed1c16b105b243d1312eb972d6

            SHA1

            ccee6bb53853aeda51de30cf4b6a911867e997d3

            SHA256

            d96233dacd8afff9317e35c79ff613fc09c8610224aa15f25e0b4067328772fa

            SHA512

            8c23de7b7866bc128dadbbd20f9f9184a143d457da3d0ba022da7dc1298a49c12dadcfe43dfffa8a6e00d5cf17e674f1f26fbc5cc56eeca62191d8c72962a496

          • \Windows\SysWOW64\installd.exe

            Filesize

            108KB

            MD5

            121643039253ec3b792e6126ac87861d

            SHA1

            30ace05a0877155aea7daa5adab3761a2f124d05

            SHA256

            885f3b14ed05f1cccd88f5f54f4639061c8f261299ee717342dcfa4cc0b5a34b

            SHA512

            b5a268957ebaa921bb52fd65b8d6577faedca5571d2fed1643982477382c1c15bcd33acb9fb05e621a94ae4f5c8225c7d4bea3994a8692d686e8827a3aeab7e4

          • \Windows\SysWOW64\nethtsrv.exe

            Filesize

            176KB

            MD5

            d81e343a67559ab8d2630363d1c2bad8

            SHA1

            f898fef5474475b97943444ac655c56fb192dd96

            SHA256

            438b69db58610cf4e6ff1d68ac6ace4e09d4b514853e2a257bd9f0f5a9ab012d

            SHA512

            c19c6bf10dafdfe09538fef9e60f759d5b31f7de043439a86a11e3de5008d5a702f7a066fe89efb3561ca21344b12a0375c65cd43c217dd84540955ec6b8d11a

          • \Windows\SysWOW64\netupdsrv.exe

            Filesize

            158KB

            MD5

            10071303d991114b13db7acb72dc3db7

            SHA1

            91a427871bbdfd45c18cabf2f225d0e3a7287d00

            SHA256

            df619d2c8ea8e47b5f8c47c043083e98d7eeef77e2cedda2505d48c72ce797f7

            SHA512

            bfc34c77f0b55f1a8bf05ea469a4e1ee4684f8574c955c5e7835e6b7362aaaf01f6c7c185db3ccd4a068eb234b5b48cf16ee209698767b21d84b0bd4d390e62c

          • memory/324-76-0x0000000000000000-mapping.dmp

          • memory/600-70-0x0000000000000000-mapping.dmp

          • memory/984-59-0x0000000000000000-mapping.dmp

          • memory/1380-86-0x0000000000000000-mapping.dmp

          • memory/1396-80-0x0000000000000000-mapping.dmp

          • memory/1560-62-0x0000000000000000-mapping.dmp

          • memory/1616-61-0x0000000000000000-mapping.dmp

          • memory/1632-87-0x0000000000000000-mapping.dmp

          • memory/1804-64-0x0000000000000000-mapping.dmp

          • memory/1864-54-0x0000000075911000-0x0000000075913000-memory.dmp

            Filesize

            8KB

          • memory/1864-55-0x0000000000360000-0x00000000007BE000-memory.dmp

            Filesize

            4.4MB

          • memory/1864-90-0x0000000000360000-0x00000000007BE000-memory.dmp

            Filesize

            4.4MB

          • memory/2020-58-0x0000000000000000-mapping.dmp

          • memory/2024-81-0x0000000000000000-mapping.dmp