Analysis

  • max time kernel
    43s
  • max time network
    31s
  • platform
    windows7_x64
  • resource
    win7-20221111-en
  • resource tags

    arch:x64arch:x86image:win7-20221111-enlocale:en-usos:windows7-x64system
  • submitted
    23-11-2022 10:35

General

  • Target

    02e410c2d8463cfab1bb8fd83eac90503e55294ce7c596588ebd61370bb28de6.exe

  • Size

    602KB

  • MD5

    caf487ba879825b58875ea5f35340972

  • SHA1

    c3f559074bb21e8733f0520cf8f0969955a72211

  • SHA256

    02e410c2d8463cfab1bb8fd83eac90503e55294ce7c596588ebd61370bb28de6

  • SHA512

    39205e5df2f9c95946f5577b24dd599f26a37c7f04de00f2dc4e60aca7d878ccd7b93a7fcd99728b110995d98a9407fe1a6afcbba1bd2dcb3a0ae2f8799e93ea

  • SSDEEP

    12288:3Iny5DYTW067IeLeKGBMuNZhtBg7ltvau/lnHJUkm281L4:fUTWR7tajvY7lXJHJUk7M4

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\02e410c2d8463cfab1bb8fd83eac90503e55294ce7c596588ebd61370bb28de6.exe
    "C:\Users\Admin\AppData\Local\Temp\02e410c2d8463cfab1bb8fd83eac90503e55294ce7c596588ebd61370bb28de6.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:1184
    • C:\Windows\SysWOW64\net.exe
      net stop nethttpservice
      2⤵
      • Suspicious use of WriteProcessMemory
      PID:932
      • C:\Windows\SysWOW64\net1.exe
        C:\Windows\system32\net1 stop nethttpservice
        3⤵
          PID:848
      • C:\Windows\SysWOW64\net.exe
        net stop serviceupdater
        2⤵
        • Suspicious use of WriteProcessMemory
        PID:268
        • C:\Windows\SysWOW64\net1.exe
          C:\Windows\system32\net1 stop serviceupdater
          3⤵
            PID:652
        • C:\Windows\SysWOW64\installd.exe
          "C:\Windows\system32\installd.exe" nethfdrv
          2⤵
          • Executes dropped EXE
          • Loads dropped DLL
          PID:632
        • C:\Windows\SysWOW64\nethtsrv.exe
          "C:\Windows\system32\nethtsrv.exe" -nfdi
          2⤵
          • Executes dropped EXE
          • Loads dropped DLL
          PID:1684
        • C:\Windows\SysWOW64\netupdsrv.exe
          "C:\Windows\system32\netupdsrv.exe" -nfdi
          2⤵
          • Executes dropped EXE
          PID:1512
        • C:\Windows\SysWOW64\net.exe
          net start nethttpservice
          2⤵
          • Suspicious use of WriteProcessMemory
          PID:1820
          • C:\Windows\SysWOW64\net1.exe
            C:\Windows\system32\net1 start nethttpservice
            3⤵
              PID:824
          • C:\Windows\SysWOW64\net.exe
            net start serviceupdater
            2⤵
            • Suspicious use of WriteProcessMemory
            PID:1660
            • C:\Windows\SysWOW64\net1.exe
              C:\Windows\system32\net1 start serviceupdater
              3⤵
                PID:1896
          • C:\Windows\SysWOW64\nethtsrv.exe
            C:\Windows\SysWOW64\nethtsrv.exe
            1⤵
            • Executes dropped EXE
            • Loads dropped DLL
            • Suspicious use of AdjustPrivilegeToken
            PID:1672
          • C:\Windows\SysWOW64\netupdsrv.exe
            C:\Windows\SysWOW64\netupdsrv.exe
            1⤵
            • Executes dropped EXE
            PID:1648

          Network

          MITRE ATT&CK Matrix ATT&CK v6

          Discovery

          Query Registry

          1
          T1012

          System Information Discovery

          1
          T1082

          Replay Monitor

          Loading Replay Monitor...

          Downloads

          • C:\Windows\SysWOW64\hfnapi.dll
            Filesize

            106KB

            MD5

            42c7790ff5b67b0523098bcad182d394

            SHA1

            a62feaea65af7200456b330a5d3a6f53703360c0

            SHA256

            6b8b9d349e8eb2685e4e38dc6acd8b94ec711e7065d92bf1602eb0f3647b2387

            SHA512

            2ea76d8b576821d6579f3774adf6a98d549f9d7c8084a0648201511d837d7f568ee02954353e0e3e0b98664aab870a07c778f4a9d867400d18712fbbd096548f

          • C:\Windows\SysWOW64\hfpapi.dll
            Filesize

            241KB

            MD5

            9458270ba8902b5a2f316aad366128dc

            SHA1

            89ed70ad0e384a964d720617137e6c8d20347cfa

            SHA256

            bfebee3d9d13243f6981ba184cd6caf4b93cad7d1d99b3a4319f18cc96df23d1

            SHA512

            85687e0780420a82f84d0c92b37b18547cff37fa60a434f41ee2f226cb33c4616e18be42e2867c161e0c1f5ba42e66118165c50d31c820656282ec641106c570

          • C:\Windows\SysWOW64\installd.exe
            Filesize

            108KB

            MD5

            aff499f6606f8be3dcdd72ef507bae79

            SHA1

            b175583aa5aedf65652d7271b171b48dfa09305b

            SHA256

            e27cc2afb2f87c2bead412a9c284d3721f3e13004cc91d69ce32e7dc3ffe573c

            SHA512

            dd15b99f11afe1cc5b996d3b2956a8130f3ddf9c8c577dcb27334090c9eb312d4e55b3cc3f76aa0e7311570b492e723da6fe59e407e076544e02f8cd42139380

          • C:\Windows\SysWOW64\nethtsrv.exe
            Filesize

            176KB

            MD5

            c49beaac9de0741cb7c594c995ade791

            SHA1

            96271a254600707506c42c91cc8478e22e9379f0

            SHA256

            f8ce6ae143b2c7b41f71e7e44d23a7fbd97354827c314c1d3d57a5b1345429d7

            SHA512

            2dfc91581dbd79d608318561a3e5d6a9ad2f4ffa90e253f5d88aa8f4d14e431218ea65fdaebff554a04ce062338e2bff50cb87d0a9cfc3c686ba956772e9cf5e

          • C:\Windows\SysWOW64\nethtsrv.exe
            Filesize

            176KB

            MD5

            c49beaac9de0741cb7c594c995ade791

            SHA1

            96271a254600707506c42c91cc8478e22e9379f0

            SHA256

            f8ce6ae143b2c7b41f71e7e44d23a7fbd97354827c314c1d3d57a5b1345429d7

            SHA512

            2dfc91581dbd79d608318561a3e5d6a9ad2f4ffa90e253f5d88aa8f4d14e431218ea65fdaebff554a04ce062338e2bff50cb87d0a9cfc3c686ba956772e9cf5e

          • C:\Windows\SysWOW64\netupdsrv.exe
            Filesize

            159KB

            MD5

            25a68ec5d51af744c83d80daa86b6ff6

            SHA1

            e2325886ef8b07a238852c6f7637a94c9f9af448

            SHA256

            5484c4588691941c056f8d76f374622814cc5bdbfda02479b98f004ff9b57cbd

            SHA512

            06338ab5ff765c5f262f2a4c3a4c7b73fc0ec221ce1c91eaf1419bf4fe8440bd2f1a7ed8299b973bfc449a1c5b71361c667e3d7adb3f62e1293d0ecdbd6d63e0

          • C:\Windows\SysWOW64\netupdsrv.exe
            Filesize

            159KB

            MD5

            25a68ec5d51af744c83d80daa86b6ff6

            SHA1

            e2325886ef8b07a238852c6f7637a94c9f9af448

            SHA256

            5484c4588691941c056f8d76f374622814cc5bdbfda02479b98f004ff9b57cbd

            SHA512

            06338ab5ff765c5f262f2a4c3a4c7b73fc0ec221ce1c91eaf1419bf4fe8440bd2f1a7ed8299b973bfc449a1c5b71361c667e3d7adb3f62e1293d0ecdbd6d63e0

          • \Users\Admin\AppData\Local\Temp\nsd67F9.tmp\System.dll
            Filesize

            11KB

            MD5

            c17103ae9072a06da581dec998343fc1

            SHA1

            b72148c6bdfaada8b8c3f950e610ee7cf1da1f8d

            SHA256

            dc58d8ad81cacb0c1ed72e33bff8f23ea40b5252b5bb55d393a0903e6819ae2f

            SHA512

            d32a71aaef18e993f28096d536e41c4d016850721b31171513ce28bbd805a54fd290b7c3e9d935f72e676a1acfb4f0dcc89d95040a0dd29f2b6975855c18986f

          • \Users\Admin\AppData\Local\Temp\nsd67F9.tmp\nsExec.dll
            Filesize

            6KB

            MD5

            acc2b699edfea5bf5aae45aba3a41e96

            SHA1

            d2accf4d494e43ceb2cff69abe4dd17147d29cc2

            SHA256

            168a974eaa3f588d759db3f47c1a9fdc3494ba1fa1a73a84e5e3b2a4d58abd7e

            SHA512

            e29ea10ada98c71a18273b04f44f385b120d4e8473e441ce5748cfa44a23648814f2656f429b85440157988c88de776c6ac008dc38bf09cbb746c230a46c69fe

          • \Users\Admin\AppData\Local\Temp\nsd67F9.tmp\nsExec.dll
            Filesize

            6KB

            MD5

            acc2b699edfea5bf5aae45aba3a41e96

            SHA1

            d2accf4d494e43ceb2cff69abe4dd17147d29cc2

            SHA256

            168a974eaa3f588d759db3f47c1a9fdc3494ba1fa1a73a84e5e3b2a4d58abd7e

            SHA512

            e29ea10ada98c71a18273b04f44f385b120d4e8473e441ce5748cfa44a23648814f2656f429b85440157988c88de776c6ac008dc38bf09cbb746c230a46c69fe

          • \Users\Admin\AppData\Local\Temp\nsd67F9.tmp\nsExec.dll
            Filesize

            6KB

            MD5

            acc2b699edfea5bf5aae45aba3a41e96

            SHA1

            d2accf4d494e43ceb2cff69abe4dd17147d29cc2

            SHA256

            168a974eaa3f588d759db3f47c1a9fdc3494ba1fa1a73a84e5e3b2a4d58abd7e

            SHA512

            e29ea10ada98c71a18273b04f44f385b120d4e8473e441ce5748cfa44a23648814f2656f429b85440157988c88de776c6ac008dc38bf09cbb746c230a46c69fe

          • \Users\Admin\AppData\Local\Temp\nsd67F9.tmp\nsExec.dll
            Filesize

            6KB

            MD5

            acc2b699edfea5bf5aae45aba3a41e96

            SHA1

            d2accf4d494e43ceb2cff69abe4dd17147d29cc2

            SHA256

            168a974eaa3f588d759db3f47c1a9fdc3494ba1fa1a73a84e5e3b2a4d58abd7e

            SHA512

            e29ea10ada98c71a18273b04f44f385b120d4e8473e441ce5748cfa44a23648814f2656f429b85440157988c88de776c6ac008dc38bf09cbb746c230a46c69fe

          • \Windows\SysWOW64\hfnapi.dll
            Filesize

            106KB

            MD5

            42c7790ff5b67b0523098bcad182d394

            SHA1

            a62feaea65af7200456b330a5d3a6f53703360c0

            SHA256

            6b8b9d349e8eb2685e4e38dc6acd8b94ec711e7065d92bf1602eb0f3647b2387

            SHA512

            2ea76d8b576821d6579f3774adf6a98d549f9d7c8084a0648201511d837d7f568ee02954353e0e3e0b98664aab870a07c778f4a9d867400d18712fbbd096548f

          • \Windows\SysWOW64\hfnapi.dll
            Filesize

            106KB

            MD5

            42c7790ff5b67b0523098bcad182d394

            SHA1

            a62feaea65af7200456b330a5d3a6f53703360c0

            SHA256

            6b8b9d349e8eb2685e4e38dc6acd8b94ec711e7065d92bf1602eb0f3647b2387

            SHA512

            2ea76d8b576821d6579f3774adf6a98d549f9d7c8084a0648201511d837d7f568ee02954353e0e3e0b98664aab870a07c778f4a9d867400d18712fbbd096548f

          • \Windows\SysWOW64\hfnapi.dll
            Filesize

            106KB

            MD5

            42c7790ff5b67b0523098bcad182d394

            SHA1

            a62feaea65af7200456b330a5d3a6f53703360c0

            SHA256

            6b8b9d349e8eb2685e4e38dc6acd8b94ec711e7065d92bf1602eb0f3647b2387

            SHA512

            2ea76d8b576821d6579f3774adf6a98d549f9d7c8084a0648201511d837d7f568ee02954353e0e3e0b98664aab870a07c778f4a9d867400d18712fbbd096548f

          • \Windows\SysWOW64\hfpapi.dll
            Filesize

            241KB

            MD5

            9458270ba8902b5a2f316aad366128dc

            SHA1

            89ed70ad0e384a964d720617137e6c8d20347cfa

            SHA256

            bfebee3d9d13243f6981ba184cd6caf4b93cad7d1d99b3a4319f18cc96df23d1

            SHA512

            85687e0780420a82f84d0c92b37b18547cff37fa60a434f41ee2f226cb33c4616e18be42e2867c161e0c1f5ba42e66118165c50d31c820656282ec641106c570

          • \Windows\SysWOW64\hfpapi.dll
            Filesize

            241KB

            MD5

            9458270ba8902b5a2f316aad366128dc

            SHA1

            89ed70ad0e384a964d720617137e6c8d20347cfa

            SHA256

            bfebee3d9d13243f6981ba184cd6caf4b93cad7d1d99b3a4319f18cc96df23d1

            SHA512

            85687e0780420a82f84d0c92b37b18547cff37fa60a434f41ee2f226cb33c4616e18be42e2867c161e0c1f5ba42e66118165c50d31c820656282ec641106c570

          • \Windows\SysWOW64\installd.exe
            Filesize

            108KB

            MD5

            aff499f6606f8be3dcdd72ef507bae79

            SHA1

            b175583aa5aedf65652d7271b171b48dfa09305b

            SHA256

            e27cc2afb2f87c2bead412a9c284d3721f3e13004cc91d69ce32e7dc3ffe573c

            SHA512

            dd15b99f11afe1cc5b996d3b2956a8130f3ddf9c8c577dcb27334090c9eb312d4e55b3cc3f76aa0e7311570b492e723da6fe59e407e076544e02f8cd42139380

          • \Windows\SysWOW64\nethtsrv.exe
            Filesize

            176KB

            MD5

            c49beaac9de0741cb7c594c995ade791

            SHA1

            96271a254600707506c42c91cc8478e22e9379f0

            SHA256

            f8ce6ae143b2c7b41f71e7e44d23a7fbd97354827c314c1d3d57a5b1345429d7

            SHA512

            2dfc91581dbd79d608318561a3e5d6a9ad2f4ffa90e253f5d88aa8f4d14e431218ea65fdaebff554a04ce062338e2bff50cb87d0a9cfc3c686ba956772e9cf5e

          • \Windows\SysWOW64\netupdsrv.exe
            Filesize

            159KB

            MD5

            25a68ec5d51af744c83d80daa86b6ff6

            SHA1

            e2325886ef8b07a238852c6f7637a94c9f9af448

            SHA256

            5484c4588691941c056f8d76f374622814cc5bdbfda02479b98f004ff9b57cbd

            SHA512

            06338ab5ff765c5f262f2a4c3a4c7b73fc0ec221ce1c91eaf1419bf4fe8440bd2f1a7ed8299b973bfc449a1c5b71361c667e3d7adb3f62e1293d0ecdbd6d63e0

          • memory/268-61-0x0000000000000000-mapping.dmp
          • memory/632-65-0x0000000000000000-mapping.dmp
          • memory/652-62-0x0000000000000000-mapping.dmp
          • memory/824-82-0x0000000000000000-mapping.dmp
          • memory/848-58-0x0000000000000000-mapping.dmp
          • memory/932-57-0x0000000000000000-mapping.dmp
          • memory/1184-60-0x0000000000360000-0x00000000007BE000-memory.dmp
            Filesize

            4.4MB

          • memory/1184-54-0x0000000076691000-0x0000000076693000-memory.dmp
            Filesize

            8KB

          • memory/1184-63-0x0000000000360000-0x00000000007BE000-memory.dmp
            Filesize

            4.4MB

          • memory/1184-91-0x0000000000360000-0x00000000007BE000-memory.dmp
            Filesize

            4.4MB

          • memory/1512-77-0x0000000000000000-mapping.dmp
          • memory/1660-87-0x0000000000000000-mapping.dmp
          • memory/1684-71-0x0000000000000000-mapping.dmp
          • memory/1820-81-0x0000000000000000-mapping.dmp
          • memory/1896-88-0x0000000000000000-mapping.dmp