Analysis

  • max time kernel
    36s
  • max time network
    50s
  • platform
    windows7_x64
  • resource
    win7-20220812-en
  • resource tags

    arch:x64arch:x86image:win7-20220812-enlocale:en-usos:windows7-x64system
  • submitted
    25-11-2022 14:29

General

  • Target

    6f07a4eed332ac5e64ad24e28c78cede89369c2a76efc553a32f351617200d3a.exe

  • Size

    561KB

  • MD5

    cbc6957aaa7970835f5503e17ff21694

  • SHA1

    789f1bf9ba5dc20ce6f5d82fe1d06d9d5dd444c5

  • SHA256

    6f07a4eed332ac5e64ad24e28c78cede89369c2a76efc553a32f351617200d3a

  • SHA512

    1f6043057a42500fa7f54fbad6a32df2a510b3c31c9028ce8973289eecfe23dc10a1f4b835692b01ee74883c393316a94b27f4b23a8bbb16644d54286415ae5b

  • SSDEEP

    12288:0PRYzebf+LI9LKP4vPAXbNMrhqD5u0zysFWaqEoPby9ZGV:lzyfEItc4w2cDGs8aqzn

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\6f07a4eed332ac5e64ad24e28c78cede89369c2a76efc553a32f351617200d3a.exe
    "C:\Users\Admin\AppData\Local\Temp\6f07a4eed332ac5e64ad24e28c78cede89369c2a76efc553a32f351617200d3a.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:2012
    • C:\Windows\SysWOW64\net.exe
      net stop nethttpservice
      2⤵
      • Suspicious use of WriteProcessMemory
      PID:1736
      • C:\Windows\SysWOW64\net1.exe
        C:\Windows\system32\net1 stop nethttpservice
        3⤵
          PID:1492
      • C:\Windows\SysWOW64\net.exe
        net stop serviceupdater
        2⤵
        • Suspicious use of WriteProcessMemory
        PID:1712
        • C:\Windows\SysWOW64\net1.exe
          C:\Windows\system32\net1 stop serviceupdater
          3⤵
            PID:1204
        • C:\Windows\SysWOW64\installd.exe
          "C:\Windows\system32\installd.exe" nethfdrv
          2⤵
          • Executes dropped EXE
          • Loads dropped DLL
          PID:1476
        • C:\Windows\SysWOW64\nethtsrv.exe
          "C:\Windows\system32\nethtsrv.exe" -nfdi
          2⤵
          • Executes dropped EXE
          • Loads dropped DLL
          PID:276
        • C:\Windows\SysWOW64\netupdsrv.exe
          "C:\Windows\system32\netupdsrv.exe" -nfdi
          2⤵
          • Executes dropped EXE
          PID:1372
        • C:\Windows\SysWOW64\net.exe
          net start nethttpservice
          2⤵
          • Suspicious use of WriteProcessMemory
          PID:1512
          • 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:1700
            • C:\Windows\SysWOW64\net1.exe
              C:\Windows\system32\net1 start serviceupdater
              3⤵
                PID:1392
          • C:\Windows\SysWOW64\nethtsrv.exe
            C:\Windows\SysWOW64\nethtsrv.exe
            1⤵
            • Executes dropped EXE
            • Loads dropped DLL
            • Suspicious use of AdjustPrivilegeToken
            PID:540
          • C:\Windows\SysWOW64\netupdsrv.exe
            C:\Windows\SysWOW64\netupdsrv.exe
            1⤵
            • Executes dropped EXE
            PID:1952

          Network

          MITRE ATT&CK Enterprise v6

          Replay Monitor

          Loading Replay Monitor...

          Downloads

          • C:\Windows\SysWOW64\hfnapi.dll

            Filesize

            106KB

            MD5

            16243f42771f2b5372a519f42d9d106d

            SHA1

            51bbff5fd883bc5437b3cc6cd76c7709087888f0

            SHA256

            d160b588696338aa768120db75c3a8e0f2061b12ded91007c3feb2f9c3b3edb0

            SHA512

            b6f9efb4f700feb65578555f831a5983c9555d8dfd2404b55e6e09310001d56790f20d7c1d19fe1f26243e1ac33f6b470c704fd54e6184e3c2977e843de99969

          • C:\Windows\SysWOW64\hfpapi.dll

            Filesize

            244KB

            MD5

            72cc13f1c220fef73bfb9e9e542f5695

            SHA1

            c62916a7bbb2dd351d9edcc9f9e772ecdd03f890

            SHA256

            745b21b1d71ec6bba7c988ac67b1a33696d5991886446c19c91f4ee38be9a8c8

            SHA512

            759f087ec6ba5ff214e636a5ac2c43d0313d4626ab28bf66e708f48985810b8298d068af59a67815644bee7caac04eb31f39697528a5c8ad57fd1edcf7dfb2ad

          • C:\Windows\SysWOW64\installd.exe

            Filesize

            108KB

            MD5

            5094b22d66273ee031199e66dab302ac

            SHA1

            04e050574dcb0c9dbdbf18350ffec8d527bfd785

            SHA256

            df2db95564fca36715d8736cc7c1992ef72c12e8bf49db1dfd14a015a503d557

            SHA512

            22c4ba2ef04ce4c9d2163c98e4bb96a67f4d784b1f565d90b5da6f80dae1f5874866b486b02738325e149f22c45612b59ab2ef625c9bb35330ad52f612830bc0

          • C:\Windows\SysWOW64\nethtsrv.exe

            Filesize

            176KB

            MD5

            cae9a0a1544938289b8aa7c778452cb0

            SHA1

            f094b311e94058c125bfd46b38a2f688eef168b6

            SHA256

            3a15142cc57123477b7ac7847e3daad93c856eb121b7bdb6c10ddb5aa636fabf

            SHA512

            d4e82ebecba1c7c1d302a3665a23f9a773f4b11ef9e419f65293467c4f6c435d7f52fbbfcf22f2a6ac27646cbe95a1514f5286f9301e9d32166d35a6f4dc3b67

          • C:\Windows\SysWOW64\nethtsrv.exe

            Filesize

            176KB

            MD5

            cae9a0a1544938289b8aa7c778452cb0

            SHA1

            f094b311e94058c125bfd46b38a2f688eef168b6

            SHA256

            3a15142cc57123477b7ac7847e3daad93c856eb121b7bdb6c10ddb5aa636fabf

            SHA512

            d4e82ebecba1c7c1d302a3665a23f9a773f4b11ef9e419f65293467c4f6c435d7f52fbbfcf22f2a6ac27646cbe95a1514f5286f9301e9d32166d35a6f4dc3b67

          • C:\Windows\SysWOW64\netupdsrv.exe

            Filesize

            158KB

            MD5

            cb36780f6e7503639523d7c7f7475400

            SHA1

            fa9650bb595ea5e6c890f7dad42610f71a8219b3

            SHA256

            a755261ccef23bad764a37617a2f8bb32682e9927b8256d09f589f8356f4e3f3

            SHA512

            233728989943a9f0238f83690f2312de2ca10c5aeb2ad315514105ab36bc6ec1554145a6cbc8cdb6c5bae50cba461333307f42c2b96b950f43b01673af3e0763

          • C:\Windows\SysWOW64\netupdsrv.exe

            Filesize

            158KB

            MD5

            cb36780f6e7503639523d7c7f7475400

            SHA1

            fa9650bb595ea5e6c890f7dad42610f71a8219b3

            SHA256

            a755261ccef23bad764a37617a2f8bb32682e9927b8256d09f589f8356f4e3f3

            SHA512

            233728989943a9f0238f83690f2312de2ca10c5aeb2ad315514105ab36bc6ec1554145a6cbc8cdb6c5bae50cba461333307f42c2b96b950f43b01673af3e0763

          • \Users\Admin\AppData\Local\Temp\nsdE17.tmp\System.dll

            Filesize

            11KB

            MD5

            c17103ae9072a06da581dec998343fc1

            SHA1

            b72148c6bdfaada8b8c3f950e610ee7cf1da1f8d

            SHA256

            dc58d8ad81cacb0c1ed72e33bff8f23ea40b5252b5bb55d393a0903e6819ae2f

            SHA512

            d32a71aaef18e993f28096d536e41c4d016850721b31171513ce28bbd805a54fd290b7c3e9d935f72e676a1acfb4f0dcc89d95040a0dd29f2b6975855c18986f

          • \Users\Admin\AppData\Local\Temp\nsdE17.tmp\nsExec.dll

            Filesize

            6KB

            MD5

            acc2b699edfea5bf5aae45aba3a41e96

            SHA1

            d2accf4d494e43ceb2cff69abe4dd17147d29cc2

            SHA256

            168a974eaa3f588d759db3f47c1a9fdc3494ba1fa1a73a84e5e3b2a4d58abd7e

            SHA512

            e29ea10ada98c71a18273b04f44f385b120d4e8473e441ce5748cfa44a23648814f2656f429b85440157988c88de776c6ac008dc38bf09cbb746c230a46c69fe

          • \Users\Admin\AppData\Local\Temp\nsdE17.tmp\nsExec.dll

            Filesize

            6KB

            MD5

            acc2b699edfea5bf5aae45aba3a41e96

            SHA1

            d2accf4d494e43ceb2cff69abe4dd17147d29cc2

            SHA256

            168a974eaa3f588d759db3f47c1a9fdc3494ba1fa1a73a84e5e3b2a4d58abd7e

            SHA512

            e29ea10ada98c71a18273b04f44f385b120d4e8473e441ce5748cfa44a23648814f2656f429b85440157988c88de776c6ac008dc38bf09cbb746c230a46c69fe

          • \Users\Admin\AppData\Local\Temp\nsdE17.tmp\nsExec.dll

            Filesize

            6KB

            MD5

            acc2b699edfea5bf5aae45aba3a41e96

            SHA1

            d2accf4d494e43ceb2cff69abe4dd17147d29cc2

            SHA256

            168a974eaa3f588d759db3f47c1a9fdc3494ba1fa1a73a84e5e3b2a4d58abd7e

            SHA512

            e29ea10ada98c71a18273b04f44f385b120d4e8473e441ce5748cfa44a23648814f2656f429b85440157988c88de776c6ac008dc38bf09cbb746c230a46c69fe

          • \Users\Admin\AppData\Local\Temp\nsdE17.tmp\nsExec.dll

            Filesize

            6KB

            MD5

            acc2b699edfea5bf5aae45aba3a41e96

            SHA1

            d2accf4d494e43ceb2cff69abe4dd17147d29cc2

            SHA256

            168a974eaa3f588d759db3f47c1a9fdc3494ba1fa1a73a84e5e3b2a4d58abd7e

            SHA512

            e29ea10ada98c71a18273b04f44f385b120d4e8473e441ce5748cfa44a23648814f2656f429b85440157988c88de776c6ac008dc38bf09cbb746c230a46c69fe

          • \Windows\SysWOW64\hfnapi.dll

            Filesize

            106KB

            MD5

            16243f42771f2b5372a519f42d9d106d

            SHA1

            51bbff5fd883bc5437b3cc6cd76c7709087888f0

            SHA256

            d160b588696338aa768120db75c3a8e0f2061b12ded91007c3feb2f9c3b3edb0

            SHA512

            b6f9efb4f700feb65578555f831a5983c9555d8dfd2404b55e6e09310001d56790f20d7c1d19fe1f26243e1ac33f6b470c704fd54e6184e3c2977e843de99969

          • \Windows\SysWOW64\hfnapi.dll

            Filesize

            106KB

            MD5

            16243f42771f2b5372a519f42d9d106d

            SHA1

            51bbff5fd883bc5437b3cc6cd76c7709087888f0

            SHA256

            d160b588696338aa768120db75c3a8e0f2061b12ded91007c3feb2f9c3b3edb0

            SHA512

            b6f9efb4f700feb65578555f831a5983c9555d8dfd2404b55e6e09310001d56790f20d7c1d19fe1f26243e1ac33f6b470c704fd54e6184e3c2977e843de99969

          • \Windows\SysWOW64\hfnapi.dll

            Filesize

            106KB

            MD5

            16243f42771f2b5372a519f42d9d106d

            SHA1

            51bbff5fd883bc5437b3cc6cd76c7709087888f0

            SHA256

            d160b588696338aa768120db75c3a8e0f2061b12ded91007c3feb2f9c3b3edb0

            SHA512

            b6f9efb4f700feb65578555f831a5983c9555d8dfd2404b55e6e09310001d56790f20d7c1d19fe1f26243e1ac33f6b470c704fd54e6184e3c2977e843de99969

          • \Windows\SysWOW64\hfpapi.dll

            Filesize

            244KB

            MD5

            72cc13f1c220fef73bfb9e9e542f5695

            SHA1

            c62916a7bbb2dd351d9edcc9f9e772ecdd03f890

            SHA256

            745b21b1d71ec6bba7c988ac67b1a33696d5991886446c19c91f4ee38be9a8c8

            SHA512

            759f087ec6ba5ff214e636a5ac2c43d0313d4626ab28bf66e708f48985810b8298d068af59a67815644bee7caac04eb31f39697528a5c8ad57fd1edcf7dfb2ad

          • \Windows\SysWOW64\hfpapi.dll

            Filesize

            244KB

            MD5

            72cc13f1c220fef73bfb9e9e542f5695

            SHA1

            c62916a7bbb2dd351d9edcc9f9e772ecdd03f890

            SHA256

            745b21b1d71ec6bba7c988ac67b1a33696d5991886446c19c91f4ee38be9a8c8

            SHA512

            759f087ec6ba5ff214e636a5ac2c43d0313d4626ab28bf66e708f48985810b8298d068af59a67815644bee7caac04eb31f39697528a5c8ad57fd1edcf7dfb2ad

          • \Windows\SysWOW64\installd.exe

            Filesize

            108KB

            MD5

            5094b22d66273ee031199e66dab302ac

            SHA1

            04e050574dcb0c9dbdbf18350ffec8d527bfd785

            SHA256

            df2db95564fca36715d8736cc7c1992ef72c12e8bf49db1dfd14a015a503d557

            SHA512

            22c4ba2ef04ce4c9d2163c98e4bb96a67f4d784b1f565d90b5da6f80dae1f5874866b486b02738325e149f22c45612b59ab2ef625c9bb35330ad52f612830bc0

          • \Windows\SysWOW64\nethtsrv.exe

            Filesize

            176KB

            MD5

            cae9a0a1544938289b8aa7c778452cb0

            SHA1

            f094b311e94058c125bfd46b38a2f688eef168b6

            SHA256

            3a15142cc57123477b7ac7847e3daad93c856eb121b7bdb6c10ddb5aa636fabf

            SHA512

            d4e82ebecba1c7c1d302a3665a23f9a773f4b11ef9e419f65293467c4f6c435d7f52fbbfcf22f2a6ac27646cbe95a1514f5286f9301e9d32166d35a6f4dc3b67

          • \Windows\SysWOW64\netupdsrv.exe

            Filesize

            158KB

            MD5

            cb36780f6e7503639523d7c7f7475400

            SHA1

            fa9650bb595ea5e6c890f7dad42610f71a8219b3

            SHA256

            a755261ccef23bad764a37617a2f8bb32682e9927b8256d09f589f8356f4e3f3

            SHA512

            233728989943a9f0238f83690f2312de2ca10c5aeb2ad315514105ab36bc6ec1554145a6cbc8cdb6c5bae50cba461333307f42c2b96b950f43b01673af3e0763

          • memory/276-70-0x0000000000000000-mapping.dmp

          • memory/1108-81-0x0000000000000000-mapping.dmp

          • memory/1204-62-0x0000000000000000-mapping.dmp

          • memory/1372-76-0x0000000000000000-mapping.dmp

          • memory/1392-87-0x0000000000000000-mapping.dmp

          • memory/1476-64-0x0000000000000000-mapping.dmp

          • memory/1492-58-0x0000000000000000-mapping.dmp

          • memory/1512-80-0x0000000000000000-mapping.dmp

          • memory/1700-86-0x0000000000000000-mapping.dmp

          • memory/1712-61-0x0000000000000000-mapping.dmp

          • memory/1736-57-0x0000000000000000-mapping.dmp

          • memory/2012-54-0x0000000075281000-0x0000000075283000-memory.dmp

            Filesize

            8KB

          • memory/2012-59-0x0000000000360000-0x00000000007BE000-memory.dmp

            Filesize

            4.4MB

          • memory/2012-90-0x0000000000360000-0x00000000007BE000-memory.dmp

            Filesize

            4.4MB