Analysis

  • max time kernel
    44s
  • max time network
    49s
  • platform
    windows7_x64
  • resource
    win7-20220901-en
  • resource tags

    arch:x64arch:x86image:win7-20220901-enlocale:en-usos:windows7-x64system
  • submitted
    23-11-2022 10:22

General

  • Target

    7373ced24b8c8aba15a324ce7cc1924fd89be182e0a06e11eec6bcb24a92c120.exe

  • Size

    601KB

  • MD5

    cb21e4a1f20302efa6039887c8bad9d4

  • SHA1

    04c47966bd4d952578ff2f8ef11321d93a7b62d1

  • SHA256

    7373ced24b8c8aba15a324ce7cc1924fd89be182e0a06e11eec6bcb24a92c120

  • SHA512

    70df84943c91dbd8156089b641c07f5c694da970d6f54e527ef4a087886b4b1ee84e9bda09a10df3b18ce849a4d16af9b1720be42a551293b4beab713c4f742c

  • SSDEEP

    12288:XIny5DYT1h+Zs3hAi7pxMeOvIYxScr3grTXiZGmW6NgbT14km:/UTbgs43r3gPio0NgbTW

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\7373ced24b8c8aba15a324ce7cc1924fd89be182e0a06e11eec6bcb24a92c120.exe
    "C:\Users\Admin\AppData\Local\Temp\7373ced24b8c8aba15a324ce7cc1924fd89be182e0a06e11eec6bcb24a92c120.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:1168
    • C:\Windows\SysWOW64\net.exe
      net stop nethttpservice
      2⤵
      • Suspicious use of WriteProcessMemory
      PID:1724
      • C:\Windows\SysWOW64\net1.exe
        C:\Windows\system32\net1 stop nethttpservice
        3⤵
          PID:548
      • C:\Windows\SysWOW64\net.exe
        net stop serviceupdater
        2⤵
        • Suspicious use of WriteProcessMemory
        PID:1652
        • C:\Windows\SysWOW64\net1.exe
          C:\Windows\system32\net1 stop serviceupdater
          3⤵
            PID:1144
        • C:\Windows\SysWOW64\installd.exe
          "C:\Windows\system32\installd.exe" nethfdrv
          2⤵
          • Executes dropped EXE
          • Loads dropped DLL
          PID:640
        • C:\Windows\SysWOW64\nethtsrv.exe
          "C:\Windows\system32\nethtsrv.exe" -nfdi
          2⤵
          • Executes dropped EXE
          • Loads dropped DLL
          PID:1876
        • C:\Windows\SysWOW64\netupdsrv.exe
          "C:\Windows\system32\netupdsrv.exe" -nfdi
          2⤵
          • Executes dropped EXE
          PID:1504
        • C:\Windows\SysWOW64\net.exe
          net start nethttpservice
          2⤵
          • Suspicious use of WriteProcessMemory
          PID:1908
          • C:\Windows\SysWOW64\net1.exe
            C:\Windows\system32\net1 start nethttpservice
            3⤵
              PID:1752
          • C:\Windows\SysWOW64\net.exe
            net start serviceupdater
            2⤵
            • Suspicious use of WriteProcessMemory
            PID:1756
            • C:\Windows\SysWOW64\net1.exe
              C:\Windows\system32\net1 start serviceupdater
              3⤵
                PID:1900
          • C:\Windows\SysWOW64\nethtsrv.exe
            C:\Windows\SysWOW64\nethtsrv.exe
            1⤵
            • Executes dropped EXE
            • Loads dropped DLL
            • Suspicious use of AdjustPrivilegeToken
            PID:268
          • C:\Windows\SysWOW64\netupdsrv.exe
            C:\Windows\SysWOW64\netupdsrv.exe
            1⤵
            • Executes dropped EXE
            PID:1508

          Network

          MITRE ATT&CK Enterprise v6

          Replay Monitor

          Loading Replay Monitor...

          Downloads

          • C:\Windows\SysWOW64\hfnapi.dll

            Filesize

            106KB

            MD5

            6a9161fbf4f1c9176aac04a26b418aee

            SHA1

            94ab04231b43de45184c07d90f08fd8a3e658815

            SHA256

            96a688f3fe50ea712dfa51af2db8858bbf3b6c48e14276bcbda4b8ce03af33a4

            SHA512

            e79c5e32a10d5e52ad451a715776b784ed2ac8ba083fc60a92e253afd7c43d79e2d2c300cc62e18a0e5e07f306ded5e8f98a2e73fc4c7dafa29f3c92e4219982

          • C:\Windows\SysWOW64\hfpapi.dll

            Filesize

            241KB

            MD5

            b6bcbdffa18203b447c55fa17ee7f2e9

            SHA1

            78fc32a2af9ebeb22d51591e8c769e7771e37e9f

            SHA256

            78308f5d7bb244af9d28586e0768b42b7cefcd8f390bfbd7c4693852b04d3de2

            SHA512

            dc90b2fa2f56f91d3ef3a84ffe7a39939b29146efc84c5e1cd44be25ea52d29949ae643effe186f6058c41b2c033f540b47760d8ad5fec0d655330a07df1bd13

          • C:\Windows\SysWOW64\installd.exe

            Filesize

            108KB

            MD5

            f50f15f9123ec81a8f8729058525fa6e

            SHA1

            d50118f6a4890d1c8c37eb6820b7c2451a2db114

            SHA256

            228b7bc6f4cde8c91ceb0ac5aadde461cb4d1f32c5ac4413d7a6a281653522ed

            SHA512

            7121c99a89ad3ab942744bcfccf9718118b648accaf56db5f75a494800d003fcdcff8bc6af02f2410dbce467a2f5c367eb484a990b1b17af08285a7bdfc1e877

          • C:\Windows\SysWOW64\nethtsrv.exe

            Filesize

            176KB

            MD5

            c2113632a79fc0607ab45f882e05cc13

            SHA1

            6e2d0efe3201fc2f576fa722791ad5d3ff42050c

            SHA256

            06404e6329e38509b9634760fa46252dd390e55f3dce67ed02ad4cfc32616abe

            SHA512

            613751f8b7928b40862e39f6e1211a35186bf7f1d2c46046fdf26b703f40f6cf7d76af16bdf5ffb09c6a68287dc76263044ccc374efbce56f76ec3d9a35e8025

          • C:\Windows\SysWOW64\nethtsrv.exe

            Filesize

            176KB

            MD5

            c2113632a79fc0607ab45f882e05cc13

            SHA1

            6e2d0efe3201fc2f576fa722791ad5d3ff42050c

            SHA256

            06404e6329e38509b9634760fa46252dd390e55f3dce67ed02ad4cfc32616abe

            SHA512

            613751f8b7928b40862e39f6e1211a35186bf7f1d2c46046fdf26b703f40f6cf7d76af16bdf5ffb09c6a68287dc76263044ccc374efbce56f76ec3d9a35e8025

          • C:\Windows\SysWOW64\netupdsrv.exe

            Filesize

            159KB

            MD5

            dc1256975a8d1eac1d291de98748614a

            SHA1

            ecc12b8c54622ddb5a9625890c0f1fb7cb9ebf27

            SHA256

            fd4ffbb1a4264f53e751a05e0a1f001242e350780c71648b4b25e799dd7d5c78

            SHA512

            ad9caefd2536fece10853b11e273ca8a18c024d08f0dcb150bfa01cac1bceee4eba5178a880939cb869e6a0af97163e210ea2421d470ce24ccbc1c554561acd4

          • C:\Windows\SysWOW64\netupdsrv.exe

            Filesize

            159KB

            MD5

            dc1256975a8d1eac1d291de98748614a

            SHA1

            ecc12b8c54622ddb5a9625890c0f1fb7cb9ebf27

            SHA256

            fd4ffbb1a4264f53e751a05e0a1f001242e350780c71648b4b25e799dd7d5c78

            SHA512

            ad9caefd2536fece10853b11e273ca8a18c024d08f0dcb150bfa01cac1bceee4eba5178a880939cb869e6a0af97163e210ea2421d470ce24ccbc1c554561acd4

          • \Users\Admin\AppData\Local\Temp\nsi956.tmp\System.dll

            Filesize

            11KB

            MD5

            c17103ae9072a06da581dec998343fc1

            SHA1

            b72148c6bdfaada8b8c3f950e610ee7cf1da1f8d

            SHA256

            dc58d8ad81cacb0c1ed72e33bff8f23ea40b5252b5bb55d393a0903e6819ae2f

            SHA512

            d32a71aaef18e993f28096d536e41c4d016850721b31171513ce28bbd805a54fd290b7c3e9d935f72e676a1acfb4f0dcc89d95040a0dd29f2b6975855c18986f

          • \Users\Admin\AppData\Local\Temp\nsi956.tmp\nsExec.dll

            Filesize

            6KB

            MD5

            acc2b699edfea5bf5aae45aba3a41e96

            SHA1

            d2accf4d494e43ceb2cff69abe4dd17147d29cc2

            SHA256

            168a974eaa3f588d759db3f47c1a9fdc3494ba1fa1a73a84e5e3b2a4d58abd7e

            SHA512

            e29ea10ada98c71a18273b04f44f385b120d4e8473e441ce5748cfa44a23648814f2656f429b85440157988c88de776c6ac008dc38bf09cbb746c230a46c69fe

          • \Users\Admin\AppData\Local\Temp\nsi956.tmp\nsExec.dll

            Filesize

            6KB

            MD5

            acc2b699edfea5bf5aae45aba3a41e96

            SHA1

            d2accf4d494e43ceb2cff69abe4dd17147d29cc2

            SHA256

            168a974eaa3f588d759db3f47c1a9fdc3494ba1fa1a73a84e5e3b2a4d58abd7e

            SHA512

            e29ea10ada98c71a18273b04f44f385b120d4e8473e441ce5748cfa44a23648814f2656f429b85440157988c88de776c6ac008dc38bf09cbb746c230a46c69fe

          • \Users\Admin\AppData\Local\Temp\nsi956.tmp\nsExec.dll

            Filesize

            6KB

            MD5

            acc2b699edfea5bf5aae45aba3a41e96

            SHA1

            d2accf4d494e43ceb2cff69abe4dd17147d29cc2

            SHA256

            168a974eaa3f588d759db3f47c1a9fdc3494ba1fa1a73a84e5e3b2a4d58abd7e

            SHA512

            e29ea10ada98c71a18273b04f44f385b120d4e8473e441ce5748cfa44a23648814f2656f429b85440157988c88de776c6ac008dc38bf09cbb746c230a46c69fe

          • \Users\Admin\AppData\Local\Temp\nsi956.tmp\nsExec.dll

            Filesize

            6KB

            MD5

            acc2b699edfea5bf5aae45aba3a41e96

            SHA1

            d2accf4d494e43ceb2cff69abe4dd17147d29cc2

            SHA256

            168a974eaa3f588d759db3f47c1a9fdc3494ba1fa1a73a84e5e3b2a4d58abd7e

            SHA512

            e29ea10ada98c71a18273b04f44f385b120d4e8473e441ce5748cfa44a23648814f2656f429b85440157988c88de776c6ac008dc38bf09cbb746c230a46c69fe

          • \Windows\SysWOW64\hfnapi.dll

            Filesize

            106KB

            MD5

            6a9161fbf4f1c9176aac04a26b418aee

            SHA1

            94ab04231b43de45184c07d90f08fd8a3e658815

            SHA256

            96a688f3fe50ea712dfa51af2db8858bbf3b6c48e14276bcbda4b8ce03af33a4

            SHA512

            e79c5e32a10d5e52ad451a715776b784ed2ac8ba083fc60a92e253afd7c43d79e2d2c300cc62e18a0e5e07f306ded5e8f98a2e73fc4c7dafa29f3c92e4219982

          • \Windows\SysWOW64\hfnapi.dll

            Filesize

            106KB

            MD5

            6a9161fbf4f1c9176aac04a26b418aee

            SHA1

            94ab04231b43de45184c07d90f08fd8a3e658815

            SHA256

            96a688f3fe50ea712dfa51af2db8858bbf3b6c48e14276bcbda4b8ce03af33a4

            SHA512

            e79c5e32a10d5e52ad451a715776b784ed2ac8ba083fc60a92e253afd7c43d79e2d2c300cc62e18a0e5e07f306ded5e8f98a2e73fc4c7dafa29f3c92e4219982

          • \Windows\SysWOW64\hfnapi.dll

            Filesize

            106KB

            MD5

            6a9161fbf4f1c9176aac04a26b418aee

            SHA1

            94ab04231b43de45184c07d90f08fd8a3e658815

            SHA256

            96a688f3fe50ea712dfa51af2db8858bbf3b6c48e14276bcbda4b8ce03af33a4

            SHA512

            e79c5e32a10d5e52ad451a715776b784ed2ac8ba083fc60a92e253afd7c43d79e2d2c300cc62e18a0e5e07f306ded5e8f98a2e73fc4c7dafa29f3c92e4219982

          • \Windows\SysWOW64\hfpapi.dll

            Filesize

            241KB

            MD5

            b6bcbdffa18203b447c55fa17ee7f2e9

            SHA1

            78fc32a2af9ebeb22d51591e8c769e7771e37e9f

            SHA256

            78308f5d7bb244af9d28586e0768b42b7cefcd8f390bfbd7c4693852b04d3de2

            SHA512

            dc90b2fa2f56f91d3ef3a84ffe7a39939b29146efc84c5e1cd44be25ea52d29949ae643effe186f6058c41b2c033f540b47760d8ad5fec0d655330a07df1bd13

          • \Windows\SysWOW64\hfpapi.dll

            Filesize

            241KB

            MD5

            b6bcbdffa18203b447c55fa17ee7f2e9

            SHA1

            78fc32a2af9ebeb22d51591e8c769e7771e37e9f

            SHA256

            78308f5d7bb244af9d28586e0768b42b7cefcd8f390bfbd7c4693852b04d3de2

            SHA512

            dc90b2fa2f56f91d3ef3a84ffe7a39939b29146efc84c5e1cd44be25ea52d29949ae643effe186f6058c41b2c033f540b47760d8ad5fec0d655330a07df1bd13

          • \Windows\SysWOW64\installd.exe

            Filesize

            108KB

            MD5

            f50f15f9123ec81a8f8729058525fa6e

            SHA1

            d50118f6a4890d1c8c37eb6820b7c2451a2db114

            SHA256

            228b7bc6f4cde8c91ceb0ac5aadde461cb4d1f32c5ac4413d7a6a281653522ed

            SHA512

            7121c99a89ad3ab942744bcfccf9718118b648accaf56db5f75a494800d003fcdcff8bc6af02f2410dbce467a2f5c367eb484a990b1b17af08285a7bdfc1e877

          • \Windows\SysWOW64\nethtsrv.exe

            Filesize

            176KB

            MD5

            c2113632a79fc0607ab45f882e05cc13

            SHA1

            6e2d0efe3201fc2f576fa722791ad5d3ff42050c

            SHA256

            06404e6329e38509b9634760fa46252dd390e55f3dce67ed02ad4cfc32616abe

            SHA512

            613751f8b7928b40862e39f6e1211a35186bf7f1d2c46046fdf26b703f40f6cf7d76af16bdf5ffb09c6a68287dc76263044ccc374efbce56f76ec3d9a35e8025

          • \Windows\SysWOW64\netupdsrv.exe

            Filesize

            159KB

            MD5

            dc1256975a8d1eac1d291de98748614a

            SHA1

            ecc12b8c54622ddb5a9625890c0f1fb7cb9ebf27

            SHA256

            fd4ffbb1a4264f53e751a05e0a1f001242e350780c71648b4b25e799dd7d5c78

            SHA512

            ad9caefd2536fece10853b11e273ca8a18c024d08f0dcb150bfa01cac1bceee4eba5178a880939cb869e6a0af97163e210ea2421d470ce24ccbc1c554561acd4

          • memory/548-58-0x0000000000000000-mapping.dmp

          • memory/640-64-0x0000000000000000-mapping.dmp

          • memory/1144-62-0x0000000000000000-mapping.dmp

          • memory/1168-54-0x00000000760E1000-0x00000000760E3000-memory.dmp

            Filesize

            8KB

          • memory/1168-59-0x0000000000360000-0x00000000007BE000-memory.dmp

            Filesize

            4.4MB

          • memory/1168-90-0x0000000000360000-0x00000000007BE000-memory.dmp

            Filesize

            4.4MB

          • memory/1504-76-0x0000000000000000-mapping.dmp

          • memory/1652-61-0x0000000000000000-mapping.dmp

          • memory/1724-57-0x0000000000000000-mapping.dmp

          • memory/1752-81-0x0000000000000000-mapping.dmp

          • memory/1756-86-0x0000000000000000-mapping.dmp

          • memory/1876-70-0x0000000000000000-mapping.dmp

          • memory/1900-87-0x0000000000000000-mapping.dmp

          • memory/1908-80-0x0000000000000000-mapping.dmp