Analysis

  • max time kernel
    12s
  • max time network
    45s
  • platform
    windows7_x64
  • resource
    win7-20220812-en
  • resource tags

    arch:x64arch:x86image:win7-20220812-enlocale:en-usos:windows7-x64system
  • submitted
    23-11-2022 11:00

General

  • Target

    05cd92efc8667d2ddb49eccc899e5ff296ca8b1e9dd74946b860701188cac43e.exe

  • Size

    446KB

  • MD5

    000434b11c9a496e049d48f1393ad068

  • SHA1

    5fe0a9a111681fdfa6204dafc53de66d419b8e9b

  • SHA256

    05cd92efc8667d2ddb49eccc899e5ff296ca8b1e9dd74946b860701188cac43e

  • SHA512

    218b20f24f30b978760c87e501bed4559f62eed7754e4d369cf9f2cab89464902c109672a21e70df4fa1e743989e9d27e38eb1bb15faa790d30650e78397a178

  • SSDEEP

    12288:2I8YgJSJTVC0QpBN2Oqz7/fDCodRadBMspOKxd1+2:2I8Y6SNwBnqz7GMUzdc2

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\05cd92efc8667d2ddb49eccc899e5ff296ca8b1e9dd74946b860701188cac43e.exe
    "C:\Users\Admin\AppData\Local\Temp\05cd92efc8667d2ddb49eccc899e5ff296ca8b1e9dd74946b860701188cac43e.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:1480
    • C:\Windows\SysWOW64\net.exe
      net stop nethttpservice
      2⤵
      • Suspicious use of WriteProcessMemory
      PID:1988
      • C:\Windows\SysWOW64\net1.exe
        C:\Windows\system32\net1 stop nethttpservice
        3⤵
          PID:1904
      • C:\Windows\SysWOW64\net.exe
        net stop serviceupdater
        2⤵
        • Suspicious use of WriteProcessMemory
        PID:1696
        • C:\Windows\SysWOW64\net1.exe
          C:\Windows\system32\net1 stop serviceupdater
          3⤵
            PID:456
        • C:\Windows\SysWOW64\installd.exe
          "C:\Windows\system32\installd.exe" nethfdrv
          2⤵
          • Executes dropped EXE
          • Loads dropped DLL
          PID:892
        • C:\Windows\SysWOW64\nethtsrv.exe
          "C:\Windows\system32\nethtsrv.exe" -nfdi
          2⤵
          • Executes dropped EXE
          • Loads dropped DLL
          PID:700
        • C:\Windows\SysWOW64\netupdsrv.exe
          "C:\Windows\system32\netupdsrv.exe" -nfdi
          2⤵
          • Executes dropped EXE
          PID:1828
        • C:\Windows\SysWOW64\net.exe
          net start nethttpservice
          2⤵
          • Suspicious use of WriteProcessMemory
          PID:1092
          • C:\Windows\SysWOW64\net1.exe
            C:\Windows\system32\net1 start nethttpservice
            3⤵
              PID:1456
          • C:\Windows\SysWOW64\net.exe
            net start serviceupdater
            2⤵
            • Suspicious use of WriteProcessMemory
            PID:1032
            • C:\Windows\SysWOW64\net1.exe
              C:\Windows\system32\net1 start serviceupdater
              3⤵
                PID:1452
          • C:\Windows\SysWOW64\nethtsrv.exe
            C:\Windows\SysWOW64\nethtsrv.exe
            1⤵
            • Executes dropped EXE
            • Loads dropped DLL
            • Suspicious use of AdjustPrivilegeToken
            PID:1160
          • C:\Windows\SysWOW64\netupdsrv.exe
            C:\Windows\SysWOW64\netupdsrv.exe
            1⤵
            • Executes dropped EXE
            PID:1924

          Network

          MITRE ATT&CK Enterprise v6

          Replay Monitor

          Loading Replay Monitor...

          Downloads

          • C:\Windows\SysWOW64\hfnapi.dll

            Filesize

            106KB

            MD5

            0b65d3b26dfb7054845920c96bc49287

            SHA1

            7108cc84cc13ee8a33cd7a6b8b54d25627c21cdb

            SHA256

            fa2d8a44fe52810c0dd678154e587a525fc9ea5e7a2dbf354b01abea743000d6

            SHA512

            19f57392bb933d170b27539bfdf1996ad5cc982271e7854bf5e6be2598ccb0b6a7c69493f05949f04025d5be79e2b16fc2b9aa534a7f659641afad44407e5dbb

          • C:\Windows\SysWOW64\hfpapi.dll

            Filesize

            241KB

            MD5

            3a3bbaa3a84097952cbc4b745a8706ea

            SHA1

            087dea671450555317e90e13e6c81ee0eab2e6fb

            SHA256

            1c77993f26aecc725e3e2cc85fb8002985fa5a79b09bc27cb91012c2959dca5f

            SHA512

            8d7bf83060ab0d9771b991be962036e10172cb1992b486e5273838ea6efb355c8290b2754c5a190fcc01ffc4065a79a269dd9ff48ffa8237a4bc872ac6b0a9a5

          • C:\Windows\SysWOW64\installd.exe

            Filesize

            108KB

            MD5

            072699cf08e6c02302a6a9ff74a61a77

            SHA1

            2a4c9823cdc66992a65d6adc83d0a20721563a0e

            SHA256

            56d13ea712e7939f0cd89ad484ef8b73a89ab52b0e3158015fedd49601a84ff7

            SHA512

            7305f540941f57de935eb3cd7311fb4b2456c805bdd03380254ac108d8a7b4a2ed78c2e114e5bedadca47b33d91988c9cff88426e2f1c33039f3ea3398b3add9

          • C:\Windows\SysWOW64\nethtsrv.exe

            Filesize

            176KB

            MD5

            90007b309553b38382c7ac1dcd9118d2

            SHA1

            68b2183dd70a6354ecc076ab83f834115c8c12ca

            SHA256

            8656721320b423e350fe28eb50fb70891d21cc983981dafa74ecf5c42f069ddb

            SHA512

            548e33f3f2973e10c5e9a2a39da04aab2f54a58f9f1db45b695741fed090facc7c471579dfb445b0a2f199b6ae06b514031f7acb5e1507ed7159589ffc37f977

          • C:\Windows\SysWOW64\nethtsrv.exe

            Filesize

            176KB

            MD5

            90007b309553b38382c7ac1dcd9118d2

            SHA1

            68b2183dd70a6354ecc076ab83f834115c8c12ca

            SHA256

            8656721320b423e350fe28eb50fb70891d21cc983981dafa74ecf5c42f069ddb

            SHA512

            548e33f3f2973e10c5e9a2a39da04aab2f54a58f9f1db45b695741fed090facc7c471579dfb445b0a2f199b6ae06b514031f7acb5e1507ed7159589ffc37f977

          • C:\Windows\SysWOW64\netupdsrv.exe

            Filesize

            158KB

            MD5

            d2f72c5a8cb1b547b2d1b749ce48d04f

            SHA1

            3cc2d3b1ad77c047b412b4f4b446082b29bba768

            SHA256

            b469490c26533661e80a97380e0dbc618bcf9404280c669772be99f0cfd21948

            SHA512

            8cc6549eb80f69057f02e696275590d20291fbbeafe72c38bc90fd007841cbcdcc64c9df9e25dfe14c9c62713e49a93d83ffd7ff3d90ddeddadf98173c3eaa31

          • C:\Windows\SysWOW64\netupdsrv.exe

            Filesize

            158KB

            MD5

            d2f72c5a8cb1b547b2d1b749ce48d04f

            SHA1

            3cc2d3b1ad77c047b412b4f4b446082b29bba768

            SHA256

            b469490c26533661e80a97380e0dbc618bcf9404280c669772be99f0cfd21948

            SHA512

            8cc6549eb80f69057f02e696275590d20291fbbeafe72c38bc90fd007841cbcdcc64c9df9e25dfe14c9c62713e49a93d83ffd7ff3d90ddeddadf98173c3eaa31

          • \Users\Admin\AppData\Local\Temp\nsd8893.tmp\System.dll

            Filesize

            11KB

            MD5

            c17103ae9072a06da581dec998343fc1

            SHA1

            b72148c6bdfaada8b8c3f950e610ee7cf1da1f8d

            SHA256

            dc58d8ad81cacb0c1ed72e33bff8f23ea40b5252b5bb55d393a0903e6819ae2f

            SHA512

            d32a71aaef18e993f28096d536e41c4d016850721b31171513ce28bbd805a54fd290b7c3e9d935f72e676a1acfb4f0dcc89d95040a0dd29f2b6975855c18986f

          • \Users\Admin\AppData\Local\Temp\nsd8893.tmp\nsExec.dll

            Filesize

            6KB

            MD5

            acc2b699edfea5bf5aae45aba3a41e96

            SHA1

            d2accf4d494e43ceb2cff69abe4dd17147d29cc2

            SHA256

            168a974eaa3f588d759db3f47c1a9fdc3494ba1fa1a73a84e5e3b2a4d58abd7e

            SHA512

            e29ea10ada98c71a18273b04f44f385b120d4e8473e441ce5748cfa44a23648814f2656f429b85440157988c88de776c6ac008dc38bf09cbb746c230a46c69fe

          • \Users\Admin\AppData\Local\Temp\nsd8893.tmp\nsExec.dll

            Filesize

            6KB

            MD5

            acc2b699edfea5bf5aae45aba3a41e96

            SHA1

            d2accf4d494e43ceb2cff69abe4dd17147d29cc2

            SHA256

            168a974eaa3f588d759db3f47c1a9fdc3494ba1fa1a73a84e5e3b2a4d58abd7e

            SHA512

            e29ea10ada98c71a18273b04f44f385b120d4e8473e441ce5748cfa44a23648814f2656f429b85440157988c88de776c6ac008dc38bf09cbb746c230a46c69fe

          • \Users\Admin\AppData\Local\Temp\nsd8893.tmp\nsExec.dll

            Filesize

            6KB

            MD5

            acc2b699edfea5bf5aae45aba3a41e96

            SHA1

            d2accf4d494e43ceb2cff69abe4dd17147d29cc2

            SHA256

            168a974eaa3f588d759db3f47c1a9fdc3494ba1fa1a73a84e5e3b2a4d58abd7e

            SHA512

            e29ea10ada98c71a18273b04f44f385b120d4e8473e441ce5748cfa44a23648814f2656f429b85440157988c88de776c6ac008dc38bf09cbb746c230a46c69fe

          • \Users\Admin\AppData\Local\Temp\nsd8893.tmp\nsExec.dll

            Filesize

            6KB

            MD5

            acc2b699edfea5bf5aae45aba3a41e96

            SHA1

            d2accf4d494e43ceb2cff69abe4dd17147d29cc2

            SHA256

            168a974eaa3f588d759db3f47c1a9fdc3494ba1fa1a73a84e5e3b2a4d58abd7e

            SHA512

            e29ea10ada98c71a18273b04f44f385b120d4e8473e441ce5748cfa44a23648814f2656f429b85440157988c88de776c6ac008dc38bf09cbb746c230a46c69fe

          • \Windows\SysWOW64\hfnapi.dll

            Filesize

            106KB

            MD5

            0b65d3b26dfb7054845920c96bc49287

            SHA1

            7108cc84cc13ee8a33cd7a6b8b54d25627c21cdb

            SHA256

            fa2d8a44fe52810c0dd678154e587a525fc9ea5e7a2dbf354b01abea743000d6

            SHA512

            19f57392bb933d170b27539bfdf1996ad5cc982271e7854bf5e6be2598ccb0b6a7c69493f05949f04025d5be79e2b16fc2b9aa534a7f659641afad44407e5dbb

          • \Windows\SysWOW64\hfnapi.dll

            Filesize

            106KB

            MD5

            0b65d3b26dfb7054845920c96bc49287

            SHA1

            7108cc84cc13ee8a33cd7a6b8b54d25627c21cdb

            SHA256

            fa2d8a44fe52810c0dd678154e587a525fc9ea5e7a2dbf354b01abea743000d6

            SHA512

            19f57392bb933d170b27539bfdf1996ad5cc982271e7854bf5e6be2598ccb0b6a7c69493f05949f04025d5be79e2b16fc2b9aa534a7f659641afad44407e5dbb

          • \Windows\SysWOW64\hfnapi.dll

            Filesize

            106KB

            MD5

            0b65d3b26dfb7054845920c96bc49287

            SHA1

            7108cc84cc13ee8a33cd7a6b8b54d25627c21cdb

            SHA256

            fa2d8a44fe52810c0dd678154e587a525fc9ea5e7a2dbf354b01abea743000d6

            SHA512

            19f57392bb933d170b27539bfdf1996ad5cc982271e7854bf5e6be2598ccb0b6a7c69493f05949f04025d5be79e2b16fc2b9aa534a7f659641afad44407e5dbb

          • \Windows\SysWOW64\hfpapi.dll

            Filesize

            241KB

            MD5

            3a3bbaa3a84097952cbc4b745a8706ea

            SHA1

            087dea671450555317e90e13e6c81ee0eab2e6fb

            SHA256

            1c77993f26aecc725e3e2cc85fb8002985fa5a79b09bc27cb91012c2959dca5f

            SHA512

            8d7bf83060ab0d9771b991be962036e10172cb1992b486e5273838ea6efb355c8290b2754c5a190fcc01ffc4065a79a269dd9ff48ffa8237a4bc872ac6b0a9a5

          • \Windows\SysWOW64\hfpapi.dll

            Filesize

            241KB

            MD5

            3a3bbaa3a84097952cbc4b745a8706ea

            SHA1

            087dea671450555317e90e13e6c81ee0eab2e6fb

            SHA256

            1c77993f26aecc725e3e2cc85fb8002985fa5a79b09bc27cb91012c2959dca5f

            SHA512

            8d7bf83060ab0d9771b991be962036e10172cb1992b486e5273838ea6efb355c8290b2754c5a190fcc01ffc4065a79a269dd9ff48ffa8237a4bc872ac6b0a9a5

          • \Windows\SysWOW64\installd.exe

            Filesize

            108KB

            MD5

            072699cf08e6c02302a6a9ff74a61a77

            SHA1

            2a4c9823cdc66992a65d6adc83d0a20721563a0e

            SHA256

            56d13ea712e7939f0cd89ad484ef8b73a89ab52b0e3158015fedd49601a84ff7

            SHA512

            7305f540941f57de935eb3cd7311fb4b2456c805bdd03380254ac108d8a7b4a2ed78c2e114e5bedadca47b33d91988c9cff88426e2f1c33039f3ea3398b3add9

          • \Windows\SysWOW64\nethtsrv.exe

            Filesize

            176KB

            MD5

            90007b309553b38382c7ac1dcd9118d2

            SHA1

            68b2183dd70a6354ecc076ab83f834115c8c12ca

            SHA256

            8656721320b423e350fe28eb50fb70891d21cc983981dafa74ecf5c42f069ddb

            SHA512

            548e33f3f2973e10c5e9a2a39da04aab2f54a58f9f1db45b695741fed090facc7c471579dfb445b0a2f199b6ae06b514031f7acb5e1507ed7159589ffc37f977

          • \Windows\SysWOW64\netupdsrv.exe

            Filesize

            158KB

            MD5

            d2f72c5a8cb1b547b2d1b749ce48d04f

            SHA1

            3cc2d3b1ad77c047b412b4f4b446082b29bba768

            SHA256

            b469490c26533661e80a97380e0dbc618bcf9404280c669772be99f0cfd21948

            SHA512

            8cc6549eb80f69057f02e696275590d20291fbbeafe72c38bc90fd007841cbcdcc64c9df9e25dfe14c9c62713e49a93d83ffd7ff3d90ddeddadf98173c3eaa31

          • memory/456-61-0x0000000000000000-mapping.dmp

          • memory/700-69-0x0000000000000000-mapping.dmp

          • memory/892-63-0x0000000000000000-mapping.dmp

          • memory/1032-85-0x0000000000000000-mapping.dmp

          • memory/1092-79-0x0000000000000000-mapping.dmp

          • memory/1452-86-0x0000000000000000-mapping.dmp

          • memory/1456-80-0x0000000000000000-mapping.dmp

          • memory/1480-54-0x0000000076831000-0x0000000076833000-memory.dmp

            Filesize

            8KB

          • memory/1696-60-0x0000000000000000-mapping.dmp

          • memory/1828-75-0x0000000000000000-mapping.dmp

          • memory/1904-58-0x0000000000000000-mapping.dmp

          • memory/1988-57-0x0000000000000000-mapping.dmp