Analysis

  • max time kernel
    47s
  • max time network
    50s
  • platform
    windows7_x64
  • resource
    win7-20220901-en
  • resource tags

    arch:x64arch:x86image:win7-20220901-enlocale:en-usos:windows7-x64system
  • submitted
    22/11/2022, 00:03

General

  • Target

    5233bdd715a7606dd520b40f8c7ccb8e0f1f7b62738113a2234bea08643e0a8a.exe

  • Size

    603KB

  • MD5

    c13c5ce84ddc630f567cf8838ae407d4

  • SHA1

    78370749860be3245f13046a1d3005e15434f316

  • SHA256

    5233bdd715a7606dd520b40f8c7ccb8e0f1f7b62738113a2234bea08643e0a8a

  • SHA512

    ea20c3184544062eac4825fbbca07f81cc42c7cef808c4efaae951f869bc3449031a6170337d18feacc1cd5150d293c24999efe8d3174b7a618e1f7b690e9412

  • SSDEEP

    12288:+Iny5DYTfIHQeHaIFKBdr9HPTZb1/u6dHBQLh9/B18gLLd9HvjZR:gUTfgraIFKTNdWH/vjL7

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\5233bdd715a7606dd520b40f8c7ccb8e0f1f7b62738113a2234bea08643e0a8a.exe
    "C:\Users\Admin\AppData\Local\Temp\5233bdd715a7606dd520b40f8c7ccb8e0f1f7b62738113a2234bea08643e0a8a.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:852
    • C:\Windows\SysWOW64\net.exe
      net stop nethttpservice
      2⤵
      • Suspicious use of WriteProcessMemory
      PID:308
      • C:\Windows\SysWOW64\net1.exe
        C:\Windows\system32\net1 stop nethttpservice
        3⤵
          PID:1620
      • C:\Windows\SysWOW64\net.exe
        net stop serviceupdater
        2⤵
        • Suspicious use of WriteProcessMemory
        PID:1964
        • C:\Windows\SysWOW64\net1.exe
          C:\Windows\system32\net1 stop serviceupdater
          3⤵
            PID:468
        • C:\Windows\SysWOW64\installd.exe
          "C:\Windows\system32\installd.exe" nethfdrv
          2⤵
          • Executes dropped EXE
          • Loads dropped DLL
          PID:688
        • C:\Windows\SysWOW64\nethtsrv.exe
          "C:\Windows\system32\nethtsrv.exe" -nfdi
          2⤵
          • Executes dropped EXE
          • Loads dropped DLL
          PID:1388
        • C:\Windows\SysWOW64\netupdsrv.exe
          "C:\Windows\system32\netupdsrv.exe" -nfdi
          2⤵
          • Executes dropped EXE
          PID:664
        • C:\Windows\SysWOW64\net.exe
          net start nethttpservice
          2⤵
          • Suspicious use of WriteProcessMemory
          PID:1976
          • C:\Windows\SysWOW64\net1.exe
            C:\Windows\system32\net1 start nethttpservice
            3⤵
              PID:1108
          • C:\Windows\SysWOW64\net.exe
            net start serviceupdater
            2⤵
            • Suspicious use of WriteProcessMemory
            PID:1276
            • C:\Windows\SysWOW64\net1.exe
              C:\Windows\system32\net1 start serviceupdater
              3⤵
                PID:1508
          • C:\Windows\SysWOW64\nethtsrv.exe
            C:\Windows\SysWOW64\nethtsrv.exe
            1⤵
            • Executes dropped EXE
            • Loads dropped DLL
            • Suspicious use of AdjustPrivilegeToken
            PID:1808
          • C:\Windows\SysWOW64\netupdsrv.exe
            C:\Windows\SysWOW64\netupdsrv.exe
            1⤵
            • Executes dropped EXE
            PID:2028

          Network

          MITRE ATT&CK Enterprise v6

          Replay Monitor

          Loading Replay Monitor...

          Downloads

          • C:\Windows\SysWOW64\hfnapi.dll

            Filesize

            106KB

            MD5

            2376f6aadd26171c0f48dff0c43879e1

            SHA1

            1c001e844dce0b4a9e981823139d5927fa6932ac

            SHA256

            6620f3b2917a2cde4621341351e836a9df0c9cf0aaed4c1cbd36f5ae3400075b

            SHA512

            34192e1f1ac94d1bd8574905fefeeec14d5661839b317b957f5b384d4f956ed81fa5a627d29d63877790d291324196c50ede63899b0739fcf0ef04563e4bd699

          • C:\Windows\SysWOW64\hfpapi.dll

            Filesize

            244KB

            MD5

            d092d24cd907848dbe7d7b9ac624af1f

            SHA1

            6beef0716c6cf56c97e9623ed812525a996ece6a

            SHA256

            f35d11002ea681f23e7fa8af80c2184156383245c2fe0f5b8100dd65d7678a21

            SHA512

            62847dcf6737dfb0379e67f424e9d9bcfb03fc0b5ab2295b50a1d71008000735e19c1493889b765223f7e04f4dd170b682d4e2ae79ce9c760d8a1bee7191cf94

          • C:\Windows\SysWOW64\installd.exe

            Filesize

            108KB

            MD5

            8894281b6981f10c71472d61fe36cb76

            SHA1

            41ce3f8c2a105e80159ac1b090ec4034fd14b6b6

            SHA256

            229580ef57d8dbe88b66332c390a391bcf1361bc07d5f57f13414cdd2a17bc14

            SHA512

            e616c3e42d3585d7d374766d5b680840ed812b771da2c29b0afc79f217ac0e86ae855ccb4b0c7b38d66d97b09b37f02667e9d6b8f9c74374266b4023fa7bd6a3

          • C:\Windows\SysWOW64\nethtsrv.exe

            Filesize

            176KB

            MD5

            10349ff789916f70109626a6d7fc9fdb

            SHA1

            b91000d5354269eed4c25e12696735d1a11f8492

            SHA256

            be79841922f004a25a65445110142df90600771d2bfac342f952a8181e58f1be

            SHA512

            b15afd6a132c8295e25036d3be71814e8e94f294a8b17e16c0ac4d29849052a89bc285f1403e7cf1319bbdf6be22eef9b2efa8cb413530fd6df02a66db113e07

          • C:\Windows\SysWOW64\nethtsrv.exe

            Filesize

            176KB

            MD5

            10349ff789916f70109626a6d7fc9fdb

            SHA1

            b91000d5354269eed4c25e12696735d1a11f8492

            SHA256

            be79841922f004a25a65445110142df90600771d2bfac342f952a8181e58f1be

            SHA512

            b15afd6a132c8295e25036d3be71814e8e94f294a8b17e16c0ac4d29849052a89bc285f1403e7cf1319bbdf6be22eef9b2efa8cb413530fd6df02a66db113e07

          • C:\Windows\SysWOW64\netupdsrv.exe

            Filesize

            158KB

            MD5

            2c25fee20a9cf9e883c1a27c55f179cf

            SHA1

            88509886d92d8984951e90827e488141fff47ffb

            SHA256

            8292c40badc7304431b97830a719e194d68cd2bdc1f863ef9edb9836e9655e5e

            SHA512

            ceac0899813efc8b95d802488ea3dbe929c0955b57c6054887dee6a74aaeaa58e5f695778033fc83018ec3207b3eec3fa4de275e9453de4b3ad9837daad88ff0

          • C:\Windows\SysWOW64\netupdsrv.exe

            Filesize

            158KB

            MD5

            2c25fee20a9cf9e883c1a27c55f179cf

            SHA1

            88509886d92d8984951e90827e488141fff47ffb

            SHA256

            8292c40badc7304431b97830a719e194d68cd2bdc1f863ef9edb9836e9655e5e

            SHA512

            ceac0899813efc8b95d802488ea3dbe929c0955b57c6054887dee6a74aaeaa58e5f695778033fc83018ec3207b3eec3fa4de275e9453de4b3ad9837daad88ff0

          • \Users\Admin\AppData\Local\Temp\nsy34E.tmp\System.dll

            Filesize

            11KB

            MD5

            c17103ae9072a06da581dec998343fc1

            SHA1

            b72148c6bdfaada8b8c3f950e610ee7cf1da1f8d

            SHA256

            dc58d8ad81cacb0c1ed72e33bff8f23ea40b5252b5bb55d393a0903e6819ae2f

            SHA512

            d32a71aaef18e993f28096d536e41c4d016850721b31171513ce28bbd805a54fd290b7c3e9d935f72e676a1acfb4f0dcc89d95040a0dd29f2b6975855c18986f

          • \Users\Admin\AppData\Local\Temp\nsy34E.tmp\nsExec.dll

            Filesize

            6KB

            MD5

            acc2b699edfea5bf5aae45aba3a41e96

            SHA1

            d2accf4d494e43ceb2cff69abe4dd17147d29cc2

            SHA256

            168a974eaa3f588d759db3f47c1a9fdc3494ba1fa1a73a84e5e3b2a4d58abd7e

            SHA512

            e29ea10ada98c71a18273b04f44f385b120d4e8473e441ce5748cfa44a23648814f2656f429b85440157988c88de776c6ac008dc38bf09cbb746c230a46c69fe

          • \Users\Admin\AppData\Local\Temp\nsy34E.tmp\nsExec.dll

            Filesize

            6KB

            MD5

            acc2b699edfea5bf5aae45aba3a41e96

            SHA1

            d2accf4d494e43ceb2cff69abe4dd17147d29cc2

            SHA256

            168a974eaa3f588d759db3f47c1a9fdc3494ba1fa1a73a84e5e3b2a4d58abd7e

            SHA512

            e29ea10ada98c71a18273b04f44f385b120d4e8473e441ce5748cfa44a23648814f2656f429b85440157988c88de776c6ac008dc38bf09cbb746c230a46c69fe

          • \Users\Admin\AppData\Local\Temp\nsy34E.tmp\nsExec.dll

            Filesize

            6KB

            MD5

            acc2b699edfea5bf5aae45aba3a41e96

            SHA1

            d2accf4d494e43ceb2cff69abe4dd17147d29cc2

            SHA256

            168a974eaa3f588d759db3f47c1a9fdc3494ba1fa1a73a84e5e3b2a4d58abd7e

            SHA512

            e29ea10ada98c71a18273b04f44f385b120d4e8473e441ce5748cfa44a23648814f2656f429b85440157988c88de776c6ac008dc38bf09cbb746c230a46c69fe

          • \Users\Admin\AppData\Local\Temp\nsy34E.tmp\nsExec.dll

            Filesize

            6KB

            MD5

            acc2b699edfea5bf5aae45aba3a41e96

            SHA1

            d2accf4d494e43ceb2cff69abe4dd17147d29cc2

            SHA256

            168a974eaa3f588d759db3f47c1a9fdc3494ba1fa1a73a84e5e3b2a4d58abd7e

            SHA512

            e29ea10ada98c71a18273b04f44f385b120d4e8473e441ce5748cfa44a23648814f2656f429b85440157988c88de776c6ac008dc38bf09cbb746c230a46c69fe

          • \Windows\SysWOW64\hfnapi.dll

            Filesize

            106KB

            MD5

            2376f6aadd26171c0f48dff0c43879e1

            SHA1

            1c001e844dce0b4a9e981823139d5927fa6932ac

            SHA256

            6620f3b2917a2cde4621341351e836a9df0c9cf0aaed4c1cbd36f5ae3400075b

            SHA512

            34192e1f1ac94d1bd8574905fefeeec14d5661839b317b957f5b384d4f956ed81fa5a627d29d63877790d291324196c50ede63899b0739fcf0ef04563e4bd699

          • \Windows\SysWOW64\hfnapi.dll

            Filesize

            106KB

            MD5

            2376f6aadd26171c0f48dff0c43879e1

            SHA1

            1c001e844dce0b4a9e981823139d5927fa6932ac

            SHA256

            6620f3b2917a2cde4621341351e836a9df0c9cf0aaed4c1cbd36f5ae3400075b

            SHA512

            34192e1f1ac94d1bd8574905fefeeec14d5661839b317b957f5b384d4f956ed81fa5a627d29d63877790d291324196c50ede63899b0739fcf0ef04563e4bd699

          • \Windows\SysWOW64\hfnapi.dll

            Filesize

            106KB

            MD5

            2376f6aadd26171c0f48dff0c43879e1

            SHA1

            1c001e844dce0b4a9e981823139d5927fa6932ac

            SHA256

            6620f3b2917a2cde4621341351e836a9df0c9cf0aaed4c1cbd36f5ae3400075b

            SHA512

            34192e1f1ac94d1bd8574905fefeeec14d5661839b317b957f5b384d4f956ed81fa5a627d29d63877790d291324196c50ede63899b0739fcf0ef04563e4bd699

          • \Windows\SysWOW64\hfpapi.dll

            Filesize

            244KB

            MD5

            d092d24cd907848dbe7d7b9ac624af1f

            SHA1

            6beef0716c6cf56c97e9623ed812525a996ece6a

            SHA256

            f35d11002ea681f23e7fa8af80c2184156383245c2fe0f5b8100dd65d7678a21

            SHA512

            62847dcf6737dfb0379e67f424e9d9bcfb03fc0b5ab2295b50a1d71008000735e19c1493889b765223f7e04f4dd170b682d4e2ae79ce9c760d8a1bee7191cf94

          • \Windows\SysWOW64\hfpapi.dll

            Filesize

            244KB

            MD5

            d092d24cd907848dbe7d7b9ac624af1f

            SHA1

            6beef0716c6cf56c97e9623ed812525a996ece6a

            SHA256

            f35d11002ea681f23e7fa8af80c2184156383245c2fe0f5b8100dd65d7678a21

            SHA512

            62847dcf6737dfb0379e67f424e9d9bcfb03fc0b5ab2295b50a1d71008000735e19c1493889b765223f7e04f4dd170b682d4e2ae79ce9c760d8a1bee7191cf94

          • \Windows\SysWOW64\installd.exe

            Filesize

            108KB

            MD5

            8894281b6981f10c71472d61fe36cb76

            SHA1

            41ce3f8c2a105e80159ac1b090ec4034fd14b6b6

            SHA256

            229580ef57d8dbe88b66332c390a391bcf1361bc07d5f57f13414cdd2a17bc14

            SHA512

            e616c3e42d3585d7d374766d5b680840ed812b771da2c29b0afc79f217ac0e86ae855ccb4b0c7b38d66d97b09b37f02667e9d6b8f9c74374266b4023fa7bd6a3

          • \Windows\SysWOW64\nethtsrv.exe

            Filesize

            176KB

            MD5

            10349ff789916f70109626a6d7fc9fdb

            SHA1

            b91000d5354269eed4c25e12696735d1a11f8492

            SHA256

            be79841922f004a25a65445110142df90600771d2bfac342f952a8181e58f1be

            SHA512

            b15afd6a132c8295e25036d3be71814e8e94f294a8b17e16c0ac4d29849052a89bc285f1403e7cf1319bbdf6be22eef9b2efa8cb413530fd6df02a66db113e07

          • \Windows\SysWOW64\netupdsrv.exe

            Filesize

            158KB

            MD5

            2c25fee20a9cf9e883c1a27c55f179cf

            SHA1

            88509886d92d8984951e90827e488141fff47ffb

            SHA256

            8292c40badc7304431b97830a719e194d68cd2bdc1f863ef9edb9836e9655e5e

            SHA512

            ceac0899813efc8b95d802488ea3dbe929c0955b57c6054887dee6a74aaeaa58e5f695778033fc83018ec3207b3eec3fa4de275e9453de4b3ad9837daad88ff0

          • memory/852-54-0x0000000074DA1000-0x0000000074DA3000-memory.dmp

            Filesize

            8KB

          • memory/852-60-0x0000000000360000-0x00000000007BE000-memory.dmp

            Filesize

            4.4MB

          • memory/852-90-0x0000000000360000-0x00000000007BE000-memory.dmp

            Filesize

            4.4MB