Analysis

  • max time kernel
    45s
  • max time network
    35s
  • platform
    windows7_x64
  • resource
    win7-20221111-en
  • resource tags

    arch:x64arch:x86image:win7-20221111-enlocale:en-usos:windows7-x64system
  • submitted
    23-11-2022 10:23

General

  • Target

    717c7f078fd53c9eb4315e861be8bdf32c397f46a21ba71abc8f756b5794a6c3.exe

  • Size

    601KB

  • MD5

    bb9829f1c2386fe27c000f90c512e4e9

  • SHA1

    f60a8c63dec054ccd567ecf69ecba3705f3d2429

  • SHA256

    717c7f078fd53c9eb4315e861be8bdf32c397f46a21ba71abc8f756b5794a6c3

  • SHA512

    8c308ea09d48e68f4711e87aa17c61b5a1060082bcff87d2517c2d3a5421166b7b9357dfa35ea7bb1af6281a3f6e2725cdc7805db959c0eff3aef8ee782d08f6

  • SSDEEP

    12288:GIny5DYTNuGCh1KeMoK8FL5+iRvgtHGRE6c3GkZc:oUT0GCZMoKUPWt6E6CHc

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\717c7f078fd53c9eb4315e861be8bdf32c397f46a21ba71abc8f756b5794a6c3.exe
    "C:\Users\Admin\AppData\Local\Temp\717c7f078fd53c9eb4315e861be8bdf32c397f46a21ba71abc8f756b5794a6c3.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:1064
    • C:\Windows\SysWOW64\net.exe
      net stop nethttpservice
      2⤵
      • Suspicious use of WriteProcessMemory
      PID:852
      • C:\Windows\SysWOW64\net1.exe
        C:\Windows\system32\net1 stop nethttpservice
        3⤵
          PID:520
      • C:\Windows\SysWOW64\net.exe
        net stop serviceupdater
        2⤵
        • Suspicious use of WriteProcessMemory
        PID:480
        • C:\Windows\SysWOW64\net1.exe
          C:\Windows\system32\net1 stop serviceupdater
          3⤵
            PID:1744
        • C:\Windows\SysWOW64\installd.exe
          "C:\Windows\system32\installd.exe" nethfdrv
          2⤵
          • Executes dropped EXE
          • Loads dropped DLL
          PID:548
        • C:\Windows\SysWOW64\nethtsrv.exe
          "C:\Windows\system32\nethtsrv.exe" -nfdi
          2⤵
          • Executes dropped EXE
          • Loads dropped DLL
          PID:1380
        • C:\Windows\SysWOW64\netupdsrv.exe
          "C:\Windows\system32\netupdsrv.exe" -nfdi
          2⤵
          • Executes dropped EXE
          PID:112
        • C:\Windows\SysWOW64\net.exe
          net start nethttpservice
          2⤵
          • Suspicious use of WriteProcessMemory
          PID:268
          • C:\Windows\SysWOW64\net1.exe
            C:\Windows\system32\net1 start nethttpservice
            3⤵
              PID:292
          • C:\Windows\SysWOW64\net.exe
            net start serviceupdater
            2⤵
            • Suspicious use of WriteProcessMemory
            PID:1824
            • C:\Windows\SysWOW64\net1.exe
              C:\Windows\system32\net1 start serviceupdater
              3⤵
                PID:1952
          • C:\Windows\SysWOW64\nethtsrv.exe
            C:\Windows\SysWOW64\nethtsrv.exe
            1⤵
            • Executes dropped EXE
            • Loads dropped DLL
            • Suspicious use of AdjustPrivilegeToken
            PID:680
          • C:\Windows\SysWOW64\netupdsrv.exe
            C:\Windows\SysWOW64\netupdsrv.exe
            1⤵
            • Executes dropped EXE
            PID:804

          Network

          MITRE ATT&CK Enterprise v6

          Replay Monitor

          Loading Replay Monitor...

          Downloads

          • C:\Windows\SysWOW64\hfnapi.dll

            Filesize

            106KB

            MD5

            52bfe9955e018173fc90f58a80e038af

            SHA1

            b3a894a1dbda7ec01865a8878c9bb1c16203c7d2

            SHA256

            22196c55716d4c4a39619fb3b62c215d6eb8c92caaf3dfba2efda36eaf7c0764

            SHA512

            6e3cd75e9efdb0b2e37cd73d67754b45cc2806e46efdc3f49d84b3fe71e9ca8c7d5ed2b0d48971eebbb536143a385df4d0b38bd27a93b425f11ae42c2abab0d8

          • C:\Windows\SysWOW64\hfpapi.dll

            Filesize

            241KB

            MD5

            bb09cd45e36e72ba7036450a003e838a

            SHA1

            3f2fb9efcaa78043f6be467e3079035811288193

            SHA256

            1d8f51f4dcd0a40fd2bb3e44a55fd4e3c5d77c3deb4cd1797a9d19443f125d06

            SHA512

            f5c744f4004ae5156ccc49cb92f91564e428fb28fb2187faeaba9bd15727892d6f685cb06de95a4bf9bfced419904c8d879b63bdfc3393fb0e64c37ca68ac282

          • C:\Windows\SysWOW64\installd.exe

            Filesize

            108KB

            MD5

            bf88b1a21e2e2724cb79c79ba14097cc

            SHA1

            2d15fe541e19502fe7a708f62cd940b8248dff7d

            SHA256

            c559d806413df48217f4ba7623f0b4ea087d99fe05bab857216350965ba4073a

            SHA512

            34030a3cce1de639dcbd74f88059e891dbe1130f050f6d1797bb1c3f681de3bdd85718ae238c04e73ea483acb97316c1bbadca91f99b3a343875b112fde4ff3e

          • C:\Windows\SysWOW64\nethtsrv.exe

            Filesize

            176KB

            MD5

            4418ab9cddccfa064c45c8a031fceba0

            SHA1

            92b8d98d8b0efc780b23e6ae9c1074ec935df3f3

            SHA256

            51fb9c1a5f1e13024b4eb53b83a67150030f4a24b79c8917206d5f3d8a904157

            SHA512

            09aa4b2b55ae5ce2af17a6fb654ca0c121f97ba1be51b6172dafadf5ded02e676210fc9f87659faa3cbf8f38d08f312a24564310562f5abce758beeaca8943b3

          • C:\Windows\SysWOW64\nethtsrv.exe

            Filesize

            176KB

            MD5

            4418ab9cddccfa064c45c8a031fceba0

            SHA1

            92b8d98d8b0efc780b23e6ae9c1074ec935df3f3

            SHA256

            51fb9c1a5f1e13024b4eb53b83a67150030f4a24b79c8917206d5f3d8a904157

            SHA512

            09aa4b2b55ae5ce2af17a6fb654ca0c121f97ba1be51b6172dafadf5ded02e676210fc9f87659faa3cbf8f38d08f312a24564310562f5abce758beeaca8943b3

          • C:\Windows\SysWOW64\netupdsrv.exe

            Filesize

            158KB

            MD5

            99ed7cbc901fab72dce74c52e35bce36

            SHA1

            5c18d705c1b697a451a03b498e72ddbc1b19421d

            SHA256

            3c7c38d1fdece4559627b189d1cc7c8e95b8f33d8129894d68ba1d206473651f

            SHA512

            5d6fbc286259da3d7d9e41b5d527ca71bfcc6b748217496b57ddff02b007f7b0e7cc939dc8b550fb3a842cae48a43fbb8cc4b99908a65dcf85a10b699b644729

          • C:\Windows\SysWOW64\netupdsrv.exe

            Filesize

            158KB

            MD5

            99ed7cbc901fab72dce74c52e35bce36

            SHA1

            5c18d705c1b697a451a03b498e72ddbc1b19421d

            SHA256

            3c7c38d1fdece4559627b189d1cc7c8e95b8f33d8129894d68ba1d206473651f

            SHA512

            5d6fbc286259da3d7d9e41b5d527ca71bfcc6b748217496b57ddff02b007f7b0e7cc939dc8b550fb3a842cae48a43fbb8cc4b99908a65dcf85a10b699b644729

          • \Users\Admin\AppData\Local\Temp\nsyB760.tmp\System.dll

            Filesize

            11KB

            MD5

            c17103ae9072a06da581dec998343fc1

            SHA1

            b72148c6bdfaada8b8c3f950e610ee7cf1da1f8d

            SHA256

            dc58d8ad81cacb0c1ed72e33bff8f23ea40b5252b5bb55d393a0903e6819ae2f

            SHA512

            d32a71aaef18e993f28096d536e41c4d016850721b31171513ce28bbd805a54fd290b7c3e9d935f72e676a1acfb4f0dcc89d95040a0dd29f2b6975855c18986f

          • \Users\Admin\AppData\Local\Temp\nsyB760.tmp\nsExec.dll

            Filesize

            6KB

            MD5

            acc2b699edfea5bf5aae45aba3a41e96

            SHA1

            d2accf4d494e43ceb2cff69abe4dd17147d29cc2

            SHA256

            168a974eaa3f588d759db3f47c1a9fdc3494ba1fa1a73a84e5e3b2a4d58abd7e

            SHA512

            e29ea10ada98c71a18273b04f44f385b120d4e8473e441ce5748cfa44a23648814f2656f429b85440157988c88de776c6ac008dc38bf09cbb746c230a46c69fe

          • \Users\Admin\AppData\Local\Temp\nsyB760.tmp\nsExec.dll

            Filesize

            6KB

            MD5

            acc2b699edfea5bf5aae45aba3a41e96

            SHA1

            d2accf4d494e43ceb2cff69abe4dd17147d29cc2

            SHA256

            168a974eaa3f588d759db3f47c1a9fdc3494ba1fa1a73a84e5e3b2a4d58abd7e

            SHA512

            e29ea10ada98c71a18273b04f44f385b120d4e8473e441ce5748cfa44a23648814f2656f429b85440157988c88de776c6ac008dc38bf09cbb746c230a46c69fe

          • \Users\Admin\AppData\Local\Temp\nsyB760.tmp\nsExec.dll

            Filesize

            6KB

            MD5

            acc2b699edfea5bf5aae45aba3a41e96

            SHA1

            d2accf4d494e43ceb2cff69abe4dd17147d29cc2

            SHA256

            168a974eaa3f588d759db3f47c1a9fdc3494ba1fa1a73a84e5e3b2a4d58abd7e

            SHA512

            e29ea10ada98c71a18273b04f44f385b120d4e8473e441ce5748cfa44a23648814f2656f429b85440157988c88de776c6ac008dc38bf09cbb746c230a46c69fe

          • \Users\Admin\AppData\Local\Temp\nsyB760.tmp\nsExec.dll

            Filesize

            6KB

            MD5

            acc2b699edfea5bf5aae45aba3a41e96

            SHA1

            d2accf4d494e43ceb2cff69abe4dd17147d29cc2

            SHA256

            168a974eaa3f588d759db3f47c1a9fdc3494ba1fa1a73a84e5e3b2a4d58abd7e

            SHA512

            e29ea10ada98c71a18273b04f44f385b120d4e8473e441ce5748cfa44a23648814f2656f429b85440157988c88de776c6ac008dc38bf09cbb746c230a46c69fe

          • \Windows\SysWOW64\hfnapi.dll

            Filesize

            106KB

            MD5

            52bfe9955e018173fc90f58a80e038af

            SHA1

            b3a894a1dbda7ec01865a8878c9bb1c16203c7d2

            SHA256

            22196c55716d4c4a39619fb3b62c215d6eb8c92caaf3dfba2efda36eaf7c0764

            SHA512

            6e3cd75e9efdb0b2e37cd73d67754b45cc2806e46efdc3f49d84b3fe71e9ca8c7d5ed2b0d48971eebbb536143a385df4d0b38bd27a93b425f11ae42c2abab0d8

          • \Windows\SysWOW64\hfnapi.dll

            Filesize

            106KB

            MD5

            52bfe9955e018173fc90f58a80e038af

            SHA1

            b3a894a1dbda7ec01865a8878c9bb1c16203c7d2

            SHA256

            22196c55716d4c4a39619fb3b62c215d6eb8c92caaf3dfba2efda36eaf7c0764

            SHA512

            6e3cd75e9efdb0b2e37cd73d67754b45cc2806e46efdc3f49d84b3fe71e9ca8c7d5ed2b0d48971eebbb536143a385df4d0b38bd27a93b425f11ae42c2abab0d8

          • \Windows\SysWOW64\hfnapi.dll

            Filesize

            106KB

            MD5

            52bfe9955e018173fc90f58a80e038af

            SHA1

            b3a894a1dbda7ec01865a8878c9bb1c16203c7d2

            SHA256

            22196c55716d4c4a39619fb3b62c215d6eb8c92caaf3dfba2efda36eaf7c0764

            SHA512

            6e3cd75e9efdb0b2e37cd73d67754b45cc2806e46efdc3f49d84b3fe71e9ca8c7d5ed2b0d48971eebbb536143a385df4d0b38bd27a93b425f11ae42c2abab0d8

          • \Windows\SysWOW64\hfpapi.dll

            Filesize

            241KB

            MD5

            bb09cd45e36e72ba7036450a003e838a

            SHA1

            3f2fb9efcaa78043f6be467e3079035811288193

            SHA256

            1d8f51f4dcd0a40fd2bb3e44a55fd4e3c5d77c3deb4cd1797a9d19443f125d06

            SHA512

            f5c744f4004ae5156ccc49cb92f91564e428fb28fb2187faeaba9bd15727892d6f685cb06de95a4bf9bfced419904c8d879b63bdfc3393fb0e64c37ca68ac282

          • \Windows\SysWOW64\hfpapi.dll

            Filesize

            241KB

            MD5

            bb09cd45e36e72ba7036450a003e838a

            SHA1

            3f2fb9efcaa78043f6be467e3079035811288193

            SHA256

            1d8f51f4dcd0a40fd2bb3e44a55fd4e3c5d77c3deb4cd1797a9d19443f125d06

            SHA512

            f5c744f4004ae5156ccc49cb92f91564e428fb28fb2187faeaba9bd15727892d6f685cb06de95a4bf9bfced419904c8d879b63bdfc3393fb0e64c37ca68ac282

          • \Windows\SysWOW64\installd.exe

            Filesize

            108KB

            MD5

            bf88b1a21e2e2724cb79c79ba14097cc

            SHA1

            2d15fe541e19502fe7a708f62cd940b8248dff7d

            SHA256

            c559d806413df48217f4ba7623f0b4ea087d99fe05bab857216350965ba4073a

            SHA512

            34030a3cce1de639dcbd74f88059e891dbe1130f050f6d1797bb1c3f681de3bdd85718ae238c04e73ea483acb97316c1bbadca91f99b3a343875b112fde4ff3e

          • \Windows\SysWOW64\nethtsrv.exe

            Filesize

            176KB

            MD5

            4418ab9cddccfa064c45c8a031fceba0

            SHA1

            92b8d98d8b0efc780b23e6ae9c1074ec935df3f3

            SHA256

            51fb9c1a5f1e13024b4eb53b83a67150030f4a24b79c8917206d5f3d8a904157

            SHA512

            09aa4b2b55ae5ce2af17a6fb654ca0c121f97ba1be51b6172dafadf5ded02e676210fc9f87659faa3cbf8f38d08f312a24564310562f5abce758beeaca8943b3

          • \Windows\SysWOW64\netupdsrv.exe

            Filesize

            158KB

            MD5

            99ed7cbc901fab72dce74c52e35bce36

            SHA1

            5c18d705c1b697a451a03b498e72ddbc1b19421d

            SHA256

            3c7c38d1fdece4559627b189d1cc7c8e95b8f33d8129894d68ba1d206473651f

            SHA512

            5d6fbc286259da3d7d9e41b5d527ca71bfcc6b748217496b57ddff02b007f7b0e7cc939dc8b550fb3a842cae48a43fbb8cc4b99908a65dcf85a10b699b644729

          • memory/112-76-0x0000000000000000-mapping.dmp

          • memory/268-80-0x0000000000000000-mapping.dmp

          • memory/292-81-0x0000000000000000-mapping.dmp

          • memory/480-61-0x0000000000000000-mapping.dmp

          • memory/520-58-0x0000000000000000-mapping.dmp

          • memory/548-64-0x0000000000000000-mapping.dmp

          • memory/852-57-0x0000000000000000-mapping.dmp

          • memory/1064-54-0x0000000076161000-0x0000000076163000-memory.dmp

            Filesize

            8KB

          • memory/1064-59-0x0000000000360000-0x00000000007BE000-memory.dmp

            Filesize

            4.4MB

          • memory/1064-90-0x0000000000360000-0x00000000007BE000-memory.dmp

            Filesize

            4.4MB

          • memory/1380-70-0x0000000000000000-mapping.dmp

          • memory/1744-62-0x0000000000000000-mapping.dmp

          • memory/1824-86-0x0000000000000000-mapping.dmp

          • memory/1952-87-0x0000000000000000-mapping.dmp