Analysis

  • max time kernel
    48s
  • max time network
    34s
  • platform
    windows7_x64
  • resource
    win7-20221111-en
  • resource tags

    arch:x64arch:x86image:win7-20221111-enlocale:en-usos:windows7-x64system
  • submitted
    23-11-2022 10:21

General

  • Target

    7b5ac185a5cb9e526b2d1dabcbcf518277a5474a7a66e97c4647e5d98e5c3d08.exe

  • Size

    602KB

  • MD5

    9938cee492f0897fa9ddd1beaae61c88

  • SHA1

    e35de1803afb41273c075672f7a2f18283ba36f2

  • SHA256

    7b5ac185a5cb9e526b2d1dabcbcf518277a5474a7a66e97c4647e5d98e5c3d08

  • SHA512

    da2f2a40df61d73d64820ae0bd9f6d9618ddda9c2c325ed56ba437de610a29f8fa684810bcbab5225e35c673f556a5619df85c06c2efb44f846ed7916f60a3d6

  • SSDEEP

    12288:rIny5DYTjdIDg7hJGP5Qk4mR4uojEifB0u17g0DJTr:TUTjdggLcQk5qBB0CrN

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\7b5ac185a5cb9e526b2d1dabcbcf518277a5474a7a66e97c4647e5d98e5c3d08.exe
    "C:\Users\Admin\AppData\Local\Temp\7b5ac185a5cb9e526b2d1dabcbcf518277a5474a7a66e97c4647e5d98e5c3d08.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:952
    • C:\Windows\SysWOW64\net.exe
      net stop nethttpservice
      2⤵
      • Suspicious use of WriteProcessMemory
      PID:1708
      • C:\Windows\SysWOW64\net1.exe
        C:\Windows\system32\net1 stop nethttpservice
        3⤵
          PID:660
      • C:\Windows\SysWOW64\net.exe
        net stop serviceupdater
        2⤵
        • Suspicious use of WriteProcessMemory
        PID:1176
        • C:\Windows\SysWOW64\net1.exe
          C:\Windows\system32\net1 stop serviceupdater
          3⤵
            PID:600
        • C:\Windows\SysWOW64\installd.exe
          "C:\Windows\system32\installd.exe" nethfdrv
          2⤵
          • Executes dropped EXE
          • Loads dropped DLL
          PID:1752
        • C:\Windows\SysWOW64\nethtsrv.exe
          "C:\Windows\system32\nethtsrv.exe" -nfdi
          2⤵
          • Executes dropped EXE
          • Loads dropped DLL
          PID:1780
        • C:\Windows\SysWOW64\netupdsrv.exe
          "C:\Windows\system32\netupdsrv.exe" -nfdi
          2⤵
          • Executes dropped EXE
          PID:852
        • C:\Windows\SysWOW64\net.exe
          net start nethttpservice
          2⤵
          • Suspicious use of WriteProcessMemory
          PID:1380
          • C:\Windows\SysWOW64\net1.exe
            C:\Windows\system32\net1 start nethttpservice
            3⤵
              PID:1812
          • C:\Windows\SysWOW64\net.exe
            net start serviceupdater
            2⤵
            • Suspicious use of WriteProcessMemory
            PID:1092
            • C:\Windows\SysWOW64\net1.exe
              C:\Windows\system32\net1 start serviceupdater
              3⤵
                PID:1352
          • C:\Windows\SysWOW64\nethtsrv.exe
            C:\Windows\SysWOW64\nethtsrv.exe
            1⤵
            • Executes dropped EXE
            • Loads dropped DLL
            • Suspicious use of AdjustPrivilegeToken
            PID:1984
          • C:\Windows\SysWOW64\netupdsrv.exe
            C:\Windows\SysWOW64\netupdsrv.exe
            1⤵
            • Executes dropped EXE
            PID:1400

          Network

          MITRE ATT&CK Enterprise v6

          Replay Monitor

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          Downloads

          • C:\Windows\SysWOW64\hfnapi.dll

            Filesize

            106KB

            MD5

            e9687fa9cf323a96107fc42514f326de

            SHA1

            855a48d7d0257c742362833c024eb12a7a502a88

            SHA256

            2c0e899a944619371d819e1a526fd749f7f902fd1282fa4fc40956fb8ecdbad5

            SHA512

            d8d2e723c25fb92ac742a0911ce1310661c1fcc785834c8f572bc3332b12f7fd8b2f45582f2ce48a414d707cc10c102afc3be8a7f7fd8c6c75e41cf3d02e96c3

          • C:\Windows\SysWOW64\hfpapi.dll

            Filesize

            241KB

            MD5

            087e74654bec4e5635edab4a25aa6d61

            SHA1

            b162b45ec35820f55a6eade2560b9973291a06fa

            SHA256

            9ea5de5cbd8d268f625e70c5365239ab7f0689a477f8b5b27d49fc4d0d4a978d

            SHA512

            01031ea8e2f366dbce0642ccb6141c62fa3a506ef37983afe1dd0e946b114ee58a172f925d27399fb2088cbd3b9e42a993bb55cf084a32b7b35e8df79c280973

          • C:\Windows\SysWOW64\installd.exe

            Filesize

            108KB

            MD5

            311b4864fb6ea590ebfee77ac92cf731

            SHA1

            8ea4c92744806251057d0d4a9a2d70b9e6e94da1

            SHA256

            c5a7edccbf3ce897fb30ff8b7481e85afd98fdbca3a8626fc0fd604f08695ece

            SHA512

            2ce6b128fef3ae45e2bdc2e36868c3bf3bd85ebb5932fa342886cc54d3611b3d007bb7885fed396879c439846f758abfb57a819216a1608a68ef0ca1ca6944c8

          • C:\Windows\SysWOW64\nethtsrv.exe

            Filesize

            176KB

            MD5

            ec051de38aa252e75f2fcd1f591aa761

            SHA1

            574c9ae5d1ce833900d26ab121a11b8fd3fd387c

            SHA256

            90950de5e81175d6c435f224ab13065176e0240a0238bffba9b1e246bb2580e5

            SHA512

            934ab96760aba40d10855304bf8c0cb7c74a707f37f79631de419d0799927a344766eb5d32501318a3fda8259d724df1c1a47c7ac6f0034fb309608d7eefd53e

          • C:\Windows\SysWOW64\nethtsrv.exe

            Filesize

            176KB

            MD5

            ec051de38aa252e75f2fcd1f591aa761

            SHA1

            574c9ae5d1ce833900d26ab121a11b8fd3fd387c

            SHA256

            90950de5e81175d6c435f224ab13065176e0240a0238bffba9b1e246bb2580e5

            SHA512

            934ab96760aba40d10855304bf8c0cb7c74a707f37f79631de419d0799927a344766eb5d32501318a3fda8259d724df1c1a47c7ac6f0034fb309608d7eefd53e

          • C:\Windows\SysWOW64\netupdsrv.exe

            Filesize

            159KB

            MD5

            1e516fc2319e0dd26842c961e2488a81

            SHA1

            c1e3700c9d208503e40e5210e46451651bda5737

            SHA256

            1f326d198fdfebf0914116032249e15119e6f95f1667b789167d268d0529c89b

            SHA512

            651345eb247d0068fb04d22d42b39a24e1f40c2f6cb7922e26cb71f0db8b92bcbcd0254ad7bd665925b82c211bc4dd5cf1e374a16361fa1408ae404aea647b29

          • C:\Windows\SysWOW64\netupdsrv.exe

            Filesize

            159KB

            MD5

            1e516fc2319e0dd26842c961e2488a81

            SHA1

            c1e3700c9d208503e40e5210e46451651bda5737

            SHA256

            1f326d198fdfebf0914116032249e15119e6f95f1667b789167d268d0529c89b

            SHA512

            651345eb247d0068fb04d22d42b39a24e1f40c2f6cb7922e26cb71f0db8b92bcbcd0254ad7bd665925b82c211bc4dd5cf1e374a16361fa1408ae404aea647b29

          • \Users\Admin\AppData\Local\Temp\nse430C.tmp\System.dll

            Filesize

            11KB

            MD5

            c17103ae9072a06da581dec998343fc1

            SHA1

            b72148c6bdfaada8b8c3f950e610ee7cf1da1f8d

            SHA256

            dc58d8ad81cacb0c1ed72e33bff8f23ea40b5252b5bb55d393a0903e6819ae2f

            SHA512

            d32a71aaef18e993f28096d536e41c4d016850721b31171513ce28bbd805a54fd290b7c3e9d935f72e676a1acfb4f0dcc89d95040a0dd29f2b6975855c18986f

          • \Users\Admin\AppData\Local\Temp\nse430C.tmp\nsExec.dll

            Filesize

            6KB

            MD5

            acc2b699edfea5bf5aae45aba3a41e96

            SHA1

            d2accf4d494e43ceb2cff69abe4dd17147d29cc2

            SHA256

            168a974eaa3f588d759db3f47c1a9fdc3494ba1fa1a73a84e5e3b2a4d58abd7e

            SHA512

            e29ea10ada98c71a18273b04f44f385b120d4e8473e441ce5748cfa44a23648814f2656f429b85440157988c88de776c6ac008dc38bf09cbb746c230a46c69fe

          • \Users\Admin\AppData\Local\Temp\nse430C.tmp\nsExec.dll

            Filesize

            6KB

            MD5

            acc2b699edfea5bf5aae45aba3a41e96

            SHA1

            d2accf4d494e43ceb2cff69abe4dd17147d29cc2

            SHA256

            168a974eaa3f588d759db3f47c1a9fdc3494ba1fa1a73a84e5e3b2a4d58abd7e

            SHA512

            e29ea10ada98c71a18273b04f44f385b120d4e8473e441ce5748cfa44a23648814f2656f429b85440157988c88de776c6ac008dc38bf09cbb746c230a46c69fe

          • \Users\Admin\AppData\Local\Temp\nse430C.tmp\nsExec.dll

            Filesize

            6KB

            MD5

            acc2b699edfea5bf5aae45aba3a41e96

            SHA1

            d2accf4d494e43ceb2cff69abe4dd17147d29cc2

            SHA256

            168a974eaa3f588d759db3f47c1a9fdc3494ba1fa1a73a84e5e3b2a4d58abd7e

            SHA512

            e29ea10ada98c71a18273b04f44f385b120d4e8473e441ce5748cfa44a23648814f2656f429b85440157988c88de776c6ac008dc38bf09cbb746c230a46c69fe

          • \Users\Admin\AppData\Local\Temp\nse430C.tmp\nsExec.dll

            Filesize

            6KB

            MD5

            acc2b699edfea5bf5aae45aba3a41e96

            SHA1

            d2accf4d494e43ceb2cff69abe4dd17147d29cc2

            SHA256

            168a974eaa3f588d759db3f47c1a9fdc3494ba1fa1a73a84e5e3b2a4d58abd7e

            SHA512

            e29ea10ada98c71a18273b04f44f385b120d4e8473e441ce5748cfa44a23648814f2656f429b85440157988c88de776c6ac008dc38bf09cbb746c230a46c69fe

          • \Windows\SysWOW64\hfnapi.dll

            Filesize

            106KB

            MD5

            e9687fa9cf323a96107fc42514f326de

            SHA1

            855a48d7d0257c742362833c024eb12a7a502a88

            SHA256

            2c0e899a944619371d819e1a526fd749f7f902fd1282fa4fc40956fb8ecdbad5

            SHA512

            d8d2e723c25fb92ac742a0911ce1310661c1fcc785834c8f572bc3332b12f7fd8b2f45582f2ce48a414d707cc10c102afc3be8a7f7fd8c6c75e41cf3d02e96c3

          • \Windows\SysWOW64\hfnapi.dll

            Filesize

            106KB

            MD5

            e9687fa9cf323a96107fc42514f326de

            SHA1

            855a48d7d0257c742362833c024eb12a7a502a88

            SHA256

            2c0e899a944619371d819e1a526fd749f7f902fd1282fa4fc40956fb8ecdbad5

            SHA512

            d8d2e723c25fb92ac742a0911ce1310661c1fcc785834c8f572bc3332b12f7fd8b2f45582f2ce48a414d707cc10c102afc3be8a7f7fd8c6c75e41cf3d02e96c3

          • \Windows\SysWOW64\hfnapi.dll

            Filesize

            106KB

            MD5

            e9687fa9cf323a96107fc42514f326de

            SHA1

            855a48d7d0257c742362833c024eb12a7a502a88

            SHA256

            2c0e899a944619371d819e1a526fd749f7f902fd1282fa4fc40956fb8ecdbad5

            SHA512

            d8d2e723c25fb92ac742a0911ce1310661c1fcc785834c8f572bc3332b12f7fd8b2f45582f2ce48a414d707cc10c102afc3be8a7f7fd8c6c75e41cf3d02e96c3

          • \Windows\SysWOW64\hfpapi.dll

            Filesize

            241KB

            MD5

            087e74654bec4e5635edab4a25aa6d61

            SHA1

            b162b45ec35820f55a6eade2560b9973291a06fa

            SHA256

            9ea5de5cbd8d268f625e70c5365239ab7f0689a477f8b5b27d49fc4d0d4a978d

            SHA512

            01031ea8e2f366dbce0642ccb6141c62fa3a506ef37983afe1dd0e946b114ee58a172f925d27399fb2088cbd3b9e42a993bb55cf084a32b7b35e8df79c280973

          • \Windows\SysWOW64\hfpapi.dll

            Filesize

            241KB

            MD5

            087e74654bec4e5635edab4a25aa6d61

            SHA1

            b162b45ec35820f55a6eade2560b9973291a06fa

            SHA256

            9ea5de5cbd8d268f625e70c5365239ab7f0689a477f8b5b27d49fc4d0d4a978d

            SHA512

            01031ea8e2f366dbce0642ccb6141c62fa3a506ef37983afe1dd0e946b114ee58a172f925d27399fb2088cbd3b9e42a993bb55cf084a32b7b35e8df79c280973

          • \Windows\SysWOW64\installd.exe

            Filesize

            108KB

            MD5

            311b4864fb6ea590ebfee77ac92cf731

            SHA1

            8ea4c92744806251057d0d4a9a2d70b9e6e94da1

            SHA256

            c5a7edccbf3ce897fb30ff8b7481e85afd98fdbca3a8626fc0fd604f08695ece

            SHA512

            2ce6b128fef3ae45e2bdc2e36868c3bf3bd85ebb5932fa342886cc54d3611b3d007bb7885fed396879c439846f758abfb57a819216a1608a68ef0ca1ca6944c8

          • \Windows\SysWOW64\nethtsrv.exe

            Filesize

            176KB

            MD5

            ec051de38aa252e75f2fcd1f591aa761

            SHA1

            574c9ae5d1ce833900d26ab121a11b8fd3fd387c

            SHA256

            90950de5e81175d6c435f224ab13065176e0240a0238bffba9b1e246bb2580e5

            SHA512

            934ab96760aba40d10855304bf8c0cb7c74a707f37f79631de419d0799927a344766eb5d32501318a3fda8259d724df1c1a47c7ac6f0034fb309608d7eefd53e

          • \Windows\SysWOW64\netupdsrv.exe

            Filesize

            159KB

            MD5

            1e516fc2319e0dd26842c961e2488a81

            SHA1

            c1e3700c9d208503e40e5210e46451651bda5737

            SHA256

            1f326d198fdfebf0914116032249e15119e6f95f1667b789167d268d0529c89b

            SHA512

            651345eb247d0068fb04d22d42b39a24e1f40c2f6cb7922e26cb71f0db8b92bcbcd0254ad7bd665925b82c211bc4dd5cf1e374a16361fa1408ae404aea647b29

          • memory/600-62-0x0000000000000000-mapping.dmp

          • memory/660-58-0x0000000000000000-mapping.dmp

          • memory/852-76-0x0000000000000000-mapping.dmp

          • memory/952-90-0x0000000000360000-0x00000000007BE000-memory.dmp

            Filesize

            4.4MB

          • memory/952-59-0x0000000000360000-0x00000000007BE000-memory.dmp

            Filesize

            4.4MB

          • memory/952-54-0x00000000757E1000-0x00000000757E3000-memory.dmp

            Filesize

            8KB

          • memory/1092-86-0x0000000000000000-mapping.dmp

          • memory/1176-61-0x0000000000000000-mapping.dmp

          • memory/1352-87-0x0000000000000000-mapping.dmp

          • memory/1380-80-0x0000000000000000-mapping.dmp

          • memory/1708-57-0x0000000000000000-mapping.dmp

          • memory/1752-64-0x0000000000000000-mapping.dmp

          • memory/1780-70-0x0000000000000000-mapping.dmp

          • memory/1812-81-0x0000000000000000-mapping.dmp