Analysis

  • max time kernel
    46s
  • max time network
    34s
  • platform
    windows7_x64
  • resource
    win7-20221111-en
  • resource tags

    arch:x64arch:x86image:win7-20221111-enlocale:en-usos:windows7-x64system
  • submitted
    25-11-2022 13:28

General

  • Target

    edd6eb80350b9bbcc08797cb3816b00125683b5dd52385488257fc336ffd1655.exe

  • Size

    561KB

  • MD5

    1f5e63c83bf985e5ee9c4cfb4cb6cf92

  • SHA1

    73eae91c94c6fc8f758c23b72e2f26fb2ef088d0

  • SHA256

    edd6eb80350b9bbcc08797cb3816b00125683b5dd52385488257fc336ffd1655

  • SHA512

    b3ca726ae203325696845fd1821021eec690fb3ffd176e78f7d9294ea0d67fac8e5d809d13f07dd7203a5ecf51bfb7f573203e0a837f6d9beb14006c4b20c967

  • SSDEEP

    12288:FPRYzObfjCzMEk9308Wkoib4OW4T4gVPEnq:MzCf2Mz308T94y8

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\edd6eb80350b9bbcc08797cb3816b00125683b5dd52385488257fc336ffd1655.exe
    "C:\Users\Admin\AppData\Local\Temp\edd6eb80350b9bbcc08797cb3816b00125683b5dd52385488257fc336ffd1655.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:1776
    • C:\Windows\SysWOW64\net.exe
      net stop nethttpservice
      2⤵
      • Suspicious use of WriteProcessMemory
      PID:1488
      • C:\Windows\SysWOW64\net1.exe
        C:\Windows\system32\net1 stop nethttpservice
        3⤵
          PID:1908
      • C:\Windows\SysWOW64\net.exe
        net stop serviceupdater
        2⤵
        • Suspicious use of WriteProcessMemory
        PID:516
        • C:\Windows\SysWOW64\net1.exe
          C:\Windows\system32\net1 stop serviceupdater
          3⤵
            PID:992
        • C:\Windows\SysWOW64\installd.exe
          "C:\Windows\system32\installd.exe" nethfdrv
          2⤵
          • Executes dropped EXE
          • Loads dropped DLL
          PID:1172
        • C:\Windows\SysWOW64\nethtsrv.exe
          "C:\Windows\system32\nethtsrv.exe" -nfdi
          2⤵
          • Executes dropped EXE
          • Loads dropped DLL
          PID:1712
        • C:\Windows\SysWOW64\netupdsrv.exe
          "C:\Windows\system32\netupdsrv.exe" -nfdi
          2⤵
          • Executes dropped EXE
          PID:1796
        • C:\Windows\SysWOW64\net.exe
          net start nethttpservice
          2⤵
          • Suspicious use of WriteProcessMemory
          PID:1460
          • C:\Windows\SysWOW64\net1.exe
            C:\Windows\system32\net1 start nethttpservice
            3⤵
              PID:828
          • C:\Windows\SysWOW64\net.exe
            net start serviceupdater
            2⤵
            • Suspicious use of WriteProcessMemory
            PID:1548
            • C:\Windows\SysWOW64\net1.exe
              C:\Windows\system32\net1 start serviceupdater
              3⤵
                PID:1312
          • C:\Windows\SysWOW64\nethtsrv.exe
            C:\Windows\SysWOW64\nethtsrv.exe
            1⤵
            • Executes dropped EXE
            • Loads dropped DLL
            • Suspicious use of AdjustPrivilegeToken
            PID:2044
          • C:\Windows\SysWOW64\netupdsrv.exe
            C:\Windows\SysWOW64\netupdsrv.exe
            1⤵
            • Executes dropped EXE
            PID:2020

          Network

          MITRE ATT&CK Enterprise v6

          Replay Monitor

          Loading Replay Monitor...

          Downloads

          • C:\Windows\SysWOW64\hfnapi.dll

            Filesize

            106KB

            MD5

            9b4a7c09d26f2b3938a8fe00a7ec6fb0

            SHA1

            62414ee324f55062ad59699e1a43f33faff96364

            SHA256

            eb3e8082115c07ed4f408dab2867bac1a505a997c8259dd01f3f65be4ef2038c

            SHA512

            95800f11fec648ebc48711a862e8cc06b4c439316e36e325d5bb8f481d593b9ef49382793f4b77c1c6a6b5cba7301a40be6643c211612bb653a95f8ba3b17e21

          • C:\Windows\SysWOW64\hfpapi.dll

            Filesize

            241KB

            MD5

            e46a2beb957bdd3dfa08718a2cffd62b

            SHA1

            a3269d15e298284530b8e4d667e85c85eeb73dac

            SHA256

            c2f78e69e3dc13d9036567ba6308f0967f0ec1a7cf4a230c2468083d1f521de3

            SHA512

            f02d49ebc58740ef980b5f406d44ab7ca639ddd6d2dd8e8269b738fec5cb8fa5e7a1244c836a93fa14af915da2c5d609b417909a680437f0e8f3946348f355c1

          • C:\Windows\SysWOW64\installd.exe

            Filesize

            108KB

            MD5

            6e1336a58291fa04a9978089b57266d3

            SHA1

            ab8271da637eb48d09033db0a006b6a966186715

            SHA256

            b13c1e59df2888ff17e6110ad1cd8496af75c0532f3d215071765110f13ec221

            SHA512

            5b6794910f3803626a153bc42115e5fd48bd9734ebb5aedb93f7be50743e95dad9873ef1185ba4c8fb30adaa28a8777f4b53c951909d00bfd97600409ef23771

          • C:\Windows\SysWOW64\nethtsrv.exe

            Filesize

            176KB

            MD5

            04744956c737a1d92eb32fa58c2942f5

            SHA1

            3885d92cd6b6a19c46171ed8a70683dc38821383

            SHA256

            061016419320aaaa82eec3995fa0c7bfb00365d276e2f687f0e8b150f7f5550b

            SHA512

            cc6a1b0c537dbb84fcb84457f76d72d55c1f0fd1809521507a7e9d64ad53ad002ca565cd2a66228d3c0c772bc4accc520aafe0299df10b5d3fb9ea58f5ca8036

          • C:\Windows\SysWOW64\nethtsrv.exe

            Filesize

            176KB

            MD5

            04744956c737a1d92eb32fa58c2942f5

            SHA1

            3885d92cd6b6a19c46171ed8a70683dc38821383

            SHA256

            061016419320aaaa82eec3995fa0c7bfb00365d276e2f687f0e8b150f7f5550b

            SHA512

            cc6a1b0c537dbb84fcb84457f76d72d55c1f0fd1809521507a7e9d64ad53ad002ca565cd2a66228d3c0c772bc4accc520aafe0299df10b5d3fb9ea58f5ca8036

          • C:\Windows\SysWOW64\netupdsrv.exe

            Filesize

            158KB

            MD5

            8cbf966e6b4fd1866ba84272fccadc9f

            SHA1

            9de2fed256c1cf3d3ffb1323466cebd51138080b

            SHA256

            7e8a7b3bd008de8c740978c76b1a46b369801b6cefea67f2880b50ad92875676

            SHA512

            21d3dec14eaedd0a0a7d36dcae3050c93e898cf9db314a41ca44b3c03b0995133f4d93a1f8213d2ea4f9104b476ecdd42b2c1027147150d92148263db8ff2822

          • C:\Windows\SysWOW64\netupdsrv.exe

            Filesize

            158KB

            MD5

            8cbf966e6b4fd1866ba84272fccadc9f

            SHA1

            9de2fed256c1cf3d3ffb1323466cebd51138080b

            SHA256

            7e8a7b3bd008de8c740978c76b1a46b369801b6cefea67f2880b50ad92875676

            SHA512

            21d3dec14eaedd0a0a7d36dcae3050c93e898cf9db314a41ca44b3c03b0995133f4d93a1f8213d2ea4f9104b476ecdd42b2c1027147150d92148263db8ff2822

          • \Users\Admin\AppData\Local\Temp\nsyE9F4.tmp\System.dll

            Filesize

            11KB

            MD5

            c17103ae9072a06da581dec998343fc1

            SHA1

            b72148c6bdfaada8b8c3f950e610ee7cf1da1f8d

            SHA256

            dc58d8ad81cacb0c1ed72e33bff8f23ea40b5252b5bb55d393a0903e6819ae2f

            SHA512

            d32a71aaef18e993f28096d536e41c4d016850721b31171513ce28bbd805a54fd290b7c3e9d935f72e676a1acfb4f0dcc89d95040a0dd29f2b6975855c18986f

          • \Users\Admin\AppData\Local\Temp\nsyE9F4.tmp\nsExec.dll

            Filesize

            6KB

            MD5

            acc2b699edfea5bf5aae45aba3a41e96

            SHA1

            d2accf4d494e43ceb2cff69abe4dd17147d29cc2

            SHA256

            168a974eaa3f588d759db3f47c1a9fdc3494ba1fa1a73a84e5e3b2a4d58abd7e

            SHA512

            e29ea10ada98c71a18273b04f44f385b120d4e8473e441ce5748cfa44a23648814f2656f429b85440157988c88de776c6ac008dc38bf09cbb746c230a46c69fe

          • \Users\Admin\AppData\Local\Temp\nsyE9F4.tmp\nsExec.dll

            Filesize

            6KB

            MD5

            acc2b699edfea5bf5aae45aba3a41e96

            SHA1

            d2accf4d494e43ceb2cff69abe4dd17147d29cc2

            SHA256

            168a974eaa3f588d759db3f47c1a9fdc3494ba1fa1a73a84e5e3b2a4d58abd7e

            SHA512

            e29ea10ada98c71a18273b04f44f385b120d4e8473e441ce5748cfa44a23648814f2656f429b85440157988c88de776c6ac008dc38bf09cbb746c230a46c69fe

          • \Users\Admin\AppData\Local\Temp\nsyE9F4.tmp\nsExec.dll

            Filesize

            6KB

            MD5

            acc2b699edfea5bf5aae45aba3a41e96

            SHA1

            d2accf4d494e43ceb2cff69abe4dd17147d29cc2

            SHA256

            168a974eaa3f588d759db3f47c1a9fdc3494ba1fa1a73a84e5e3b2a4d58abd7e

            SHA512

            e29ea10ada98c71a18273b04f44f385b120d4e8473e441ce5748cfa44a23648814f2656f429b85440157988c88de776c6ac008dc38bf09cbb746c230a46c69fe

          • \Users\Admin\AppData\Local\Temp\nsyE9F4.tmp\nsExec.dll

            Filesize

            6KB

            MD5

            acc2b699edfea5bf5aae45aba3a41e96

            SHA1

            d2accf4d494e43ceb2cff69abe4dd17147d29cc2

            SHA256

            168a974eaa3f588d759db3f47c1a9fdc3494ba1fa1a73a84e5e3b2a4d58abd7e

            SHA512

            e29ea10ada98c71a18273b04f44f385b120d4e8473e441ce5748cfa44a23648814f2656f429b85440157988c88de776c6ac008dc38bf09cbb746c230a46c69fe

          • \Windows\SysWOW64\hfnapi.dll

            Filesize

            106KB

            MD5

            9b4a7c09d26f2b3938a8fe00a7ec6fb0

            SHA1

            62414ee324f55062ad59699e1a43f33faff96364

            SHA256

            eb3e8082115c07ed4f408dab2867bac1a505a997c8259dd01f3f65be4ef2038c

            SHA512

            95800f11fec648ebc48711a862e8cc06b4c439316e36e325d5bb8f481d593b9ef49382793f4b77c1c6a6b5cba7301a40be6643c211612bb653a95f8ba3b17e21

          • \Windows\SysWOW64\hfnapi.dll

            Filesize

            106KB

            MD5

            9b4a7c09d26f2b3938a8fe00a7ec6fb0

            SHA1

            62414ee324f55062ad59699e1a43f33faff96364

            SHA256

            eb3e8082115c07ed4f408dab2867bac1a505a997c8259dd01f3f65be4ef2038c

            SHA512

            95800f11fec648ebc48711a862e8cc06b4c439316e36e325d5bb8f481d593b9ef49382793f4b77c1c6a6b5cba7301a40be6643c211612bb653a95f8ba3b17e21

          • \Windows\SysWOW64\hfnapi.dll

            Filesize

            106KB

            MD5

            9b4a7c09d26f2b3938a8fe00a7ec6fb0

            SHA1

            62414ee324f55062ad59699e1a43f33faff96364

            SHA256

            eb3e8082115c07ed4f408dab2867bac1a505a997c8259dd01f3f65be4ef2038c

            SHA512

            95800f11fec648ebc48711a862e8cc06b4c439316e36e325d5bb8f481d593b9ef49382793f4b77c1c6a6b5cba7301a40be6643c211612bb653a95f8ba3b17e21

          • \Windows\SysWOW64\hfpapi.dll

            Filesize

            241KB

            MD5

            e46a2beb957bdd3dfa08718a2cffd62b

            SHA1

            a3269d15e298284530b8e4d667e85c85eeb73dac

            SHA256

            c2f78e69e3dc13d9036567ba6308f0967f0ec1a7cf4a230c2468083d1f521de3

            SHA512

            f02d49ebc58740ef980b5f406d44ab7ca639ddd6d2dd8e8269b738fec5cb8fa5e7a1244c836a93fa14af915da2c5d609b417909a680437f0e8f3946348f355c1

          • \Windows\SysWOW64\hfpapi.dll

            Filesize

            241KB

            MD5

            e46a2beb957bdd3dfa08718a2cffd62b

            SHA1

            a3269d15e298284530b8e4d667e85c85eeb73dac

            SHA256

            c2f78e69e3dc13d9036567ba6308f0967f0ec1a7cf4a230c2468083d1f521de3

            SHA512

            f02d49ebc58740ef980b5f406d44ab7ca639ddd6d2dd8e8269b738fec5cb8fa5e7a1244c836a93fa14af915da2c5d609b417909a680437f0e8f3946348f355c1

          • \Windows\SysWOW64\installd.exe

            Filesize

            108KB

            MD5

            6e1336a58291fa04a9978089b57266d3

            SHA1

            ab8271da637eb48d09033db0a006b6a966186715

            SHA256

            b13c1e59df2888ff17e6110ad1cd8496af75c0532f3d215071765110f13ec221

            SHA512

            5b6794910f3803626a153bc42115e5fd48bd9734ebb5aedb93f7be50743e95dad9873ef1185ba4c8fb30adaa28a8777f4b53c951909d00bfd97600409ef23771

          • \Windows\SysWOW64\nethtsrv.exe

            Filesize

            176KB

            MD5

            04744956c737a1d92eb32fa58c2942f5

            SHA1

            3885d92cd6b6a19c46171ed8a70683dc38821383

            SHA256

            061016419320aaaa82eec3995fa0c7bfb00365d276e2f687f0e8b150f7f5550b

            SHA512

            cc6a1b0c537dbb84fcb84457f76d72d55c1f0fd1809521507a7e9d64ad53ad002ca565cd2a66228d3c0c772bc4accc520aafe0299df10b5d3fb9ea58f5ca8036

          • \Windows\SysWOW64\netupdsrv.exe

            Filesize

            158KB

            MD5

            8cbf966e6b4fd1866ba84272fccadc9f

            SHA1

            9de2fed256c1cf3d3ffb1323466cebd51138080b

            SHA256

            7e8a7b3bd008de8c740978c76b1a46b369801b6cefea67f2880b50ad92875676

            SHA512

            21d3dec14eaedd0a0a7d36dcae3050c93e898cf9db314a41ca44b3c03b0995133f4d93a1f8213d2ea4f9104b476ecdd42b2c1027147150d92148263db8ff2822

          • memory/1776-54-0x0000000075F01000-0x0000000075F03000-memory.dmp

            Filesize

            8KB

          • memory/1776-69-0x0000000000360000-0x00000000007BE000-memory.dmp

            Filesize

            4.4MB

          • memory/1776-55-0x0000000000360000-0x00000000007BE000-memory.dmp

            Filesize

            4.4MB

          • memory/1776-91-0x0000000000360000-0x00000000007BE000-memory.dmp

            Filesize

            4.4MB