Analysis

  • max time kernel
    43s
  • max time network
    48s
  • platform
    windows7_x64
  • resource
    win7-20220901-en
  • resource tags

    arch:x64arch:x86image:win7-20220901-enlocale:en-usos:windows7-x64system
  • submitted
    23-11-2022 10:19

General

  • Target

    950016d3c1d00dbda920ea7234f3d114cc0f489621ae4c2ea9af953e26ad0376.exe

  • Size

    602KB

  • MD5

    d23fbd3749187881d3871c9631d457fd

  • SHA1

    35ec0a463a4572222d872672b723f0f0235f3700

  • SHA256

    950016d3c1d00dbda920ea7234f3d114cc0f489621ae4c2ea9af953e26ad0376

  • SHA512

    ac6a07d421e4969cec4d49225eca38e425ca92871b70aaacd8b32495601caf61b32a1861996bc12f2d7df836636d87674891fdc001ebbda480443cdac4b98ea5

  • SSDEEP

    12288:VIny5DYTBNIMgMyiuPDdv574Nr63Pf9gMwOUgujyVG9T:hUToMgtJ15U6RULjyVK

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\950016d3c1d00dbda920ea7234f3d114cc0f489621ae4c2ea9af953e26ad0376.exe
    "C:\Users\Admin\AppData\Local\Temp\950016d3c1d00dbda920ea7234f3d114cc0f489621ae4c2ea9af953e26ad0376.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:1672
    • C:\Windows\SysWOW64\net.exe
      net stop nethttpservice
      2⤵
      • Suspicious use of WriteProcessMemory
      PID:1552
      • C:\Windows\SysWOW64\net1.exe
        C:\Windows\system32\net1 stop nethttpservice
        3⤵
          PID:520
      • C:\Windows\SysWOW64\net.exe
        net stop serviceupdater
        2⤵
        • Suspicious use of WriteProcessMemory
        PID:560
        • C:\Windows\SysWOW64\net1.exe
          C:\Windows\system32\net1 stop serviceupdater
          3⤵
            PID:576
        • C:\Windows\SysWOW64\installd.exe
          "C:\Windows\system32\installd.exe" nethfdrv
          2⤵
          • Executes dropped EXE
          • Loads dropped DLL
          PID:1108
        • 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:788
        • C:\Windows\SysWOW64\net.exe
          net start nethttpservice
          2⤵
          • Suspicious use of WriteProcessMemory
          PID:852
          • C:\Windows\SysWOW64\net1.exe
            C:\Windows\system32\net1 start nethttpservice
            3⤵
              PID:1092
          • C:\Windows\SysWOW64\net.exe
            net start serviceupdater
            2⤵
            • Suspicious use of WriteProcessMemory
            PID:2032
            • C:\Windows\SysWOW64\net1.exe
              C:\Windows\system32\net1 start serviceupdater
              3⤵
                PID:764
          • C:\Windows\SysWOW64\nethtsrv.exe
            C:\Windows\SysWOW64\nethtsrv.exe
            1⤵
            • Executes dropped EXE
            • Loads dropped DLL
            • Suspicious use of AdjustPrivilegeToken
            PID:1800
          • C:\Windows\SysWOW64\netupdsrv.exe
            C:\Windows\SysWOW64\netupdsrv.exe
            1⤵
            • Executes dropped EXE
            PID:432

          Network

          MITRE ATT&CK Enterprise v6

          Replay Monitor

          Loading Replay Monitor...

          Downloads

          • C:\Windows\SysWOW64\hfnapi.dll

            Filesize

            106KB

            MD5

            d8d7d4a3f66eba8deb115db806ca1d59

            SHA1

            1fdb82bb0bb04ddbe78c9f4d7e403aa73296eb0a

            SHA256

            7971f06b3c7d92834e887ebee54816dcca847bbbbcf84a85f96814195620eaaa

            SHA512

            1c8aab60e4003270afeed2a9972dce3cfa4d1355000f3c2382e7ac5ad855da8b4e29d7e7fefaacd0cfd1323893103669c28ce72ef5d7adf0f9ef3921543a3291

          • C:\Windows\SysWOW64\hfpapi.dll

            Filesize

            241KB

            MD5

            411188c7a409303aedca1097d8d81ff0

            SHA1

            139dbc83ef220b446be0a1f89addfdee2611c761

            SHA256

            42b4fa4a94a7c946e9b9f68b7eda798f6aaae6f6fb40d78d7d8187a75328f3e0

            SHA512

            e77155225700eaa5ceed32d7182c944fc50b5f4a0228ac97e9f5b624c6f621cd4991d8592241da8ae80599e7c509307ca25271d3187f222352d65d7d4701e46f

          • C:\Windows\SysWOW64\installd.exe

            Filesize

            108KB

            MD5

            710ebfd4423de35b3ea37704c9a4631b

            SHA1

            5381a0801001b02a4b7655c8967935bd2fd9c053

            SHA256

            7c79532e257aac4a7e9a802442c24eb2e9061740a9a6bb0544ff2233d2ed535d

            SHA512

            02d39378daf40068c3a19671ab32cf4cf0d626a35300ce39f8b0ee9a3263e104be67a140f7f943f02ddab8315bd494a5d3a3106c4f6945458d01a781488c290f

          • C:\Windows\SysWOW64\nethtsrv.exe

            Filesize

            176KB

            MD5

            771a84ae590896d5c3dab9ed3e04c40a

            SHA1

            b34929cd8fe1e079d2a921bcab73d2ed696777e2

            SHA256

            11da4ecd4478d040a08685feb15c19b22accf74745907a54dd5eb5f40a719aee

            SHA512

            1281503d4557b9e48244991f9f688beaf311298f1d52e485a19c87c675408eccf10b187407ae41dbffd404af4b9fe7eeec7434be81481ac96902f709b49c327c

          • C:\Windows\SysWOW64\nethtsrv.exe

            Filesize

            176KB

            MD5

            771a84ae590896d5c3dab9ed3e04c40a

            SHA1

            b34929cd8fe1e079d2a921bcab73d2ed696777e2

            SHA256

            11da4ecd4478d040a08685feb15c19b22accf74745907a54dd5eb5f40a719aee

            SHA512

            1281503d4557b9e48244991f9f688beaf311298f1d52e485a19c87c675408eccf10b187407ae41dbffd404af4b9fe7eeec7434be81481ac96902f709b49c327c

          • C:\Windows\SysWOW64\netupdsrv.exe

            Filesize

            159KB

            MD5

            84290fc75fbd076f0daba571fc1088de

            SHA1

            4274cf7427fec829a681f884db892c406517693e

            SHA256

            0c5a1ca481728f90c2964148a33b328b47d95213aaa1d6e36533c14ed113a7ce

            SHA512

            0a68e19188185a084526b1f3d775408939fe9630b9d2bb0af9dd8ffea253d8659948e52dda503e98edcafdbb98c5743b7386ac1f892362f91a882e33b45139b6

          • C:\Windows\SysWOW64\netupdsrv.exe

            Filesize

            159KB

            MD5

            84290fc75fbd076f0daba571fc1088de

            SHA1

            4274cf7427fec829a681f884db892c406517693e

            SHA256

            0c5a1ca481728f90c2964148a33b328b47d95213aaa1d6e36533c14ed113a7ce

            SHA512

            0a68e19188185a084526b1f3d775408939fe9630b9d2bb0af9dd8ffea253d8659948e52dda503e98edcafdbb98c5743b7386ac1f892362f91a882e33b45139b6

          • \Users\Admin\AppData\Local\Temp\nso1D44.tmp\System.dll

            Filesize

            11KB

            MD5

            c17103ae9072a06da581dec998343fc1

            SHA1

            b72148c6bdfaada8b8c3f950e610ee7cf1da1f8d

            SHA256

            dc58d8ad81cacb0c1ed72e33bff8f23ea40b5252b5bb55d393a0903e6819ae2f

            SHA512

            d32a71aaef18e993f28096d536e41c4d016850721b31171513ce28bbd805a54fd290b7c3e9d935f72e676a1acfb4f0dcc89d95040a0dd29f2b6975855c18986f

          • \Users\Admin\AppData\Local\Temp\nso1D44.tmp\nsExec.dll

            Filesize

            6KB

            MD5

            acc2b699edfea5bf5aae45aba3a41e96

            SHA1

            d2accf4d494e43ceb2cff69abe4dd17147d29cc2

            SHA256

            168a974eaa3f588d759db3f47c1a9fdc3494ba1fa1a73a84e5e3b2a4d58abd7e

            SHA512

            e29ea10ada98c71a18273b04f44f385b120d4e8473e441ce5748cfa44a23648814f2656f429b85440157988c88de776c6ac008dc38bf09cbb746c230a46c69fe

          • \Users\Admin\AppData\Local\Temp\nso1D44.tmp\nsExec.dll

            Filesize

            6KB

            MD5

            acc2b699edfea5bf5aae45aba3a41e96

            SHA1

            d2accf4d494e43ceb2cff69abe4dd17147d29cc2

            SHA256

            168a974eaa3f588d759db3f47c1a9fdc3494ba1fa1a73a84e5e3b2a4d58abd7e

            SHA512

            e29ea10ada98c71a18273b04f44f385b120d4e8473e441ce5748cfa44a23648814f2656f429b85440157988c88de776c6ac008dc38bf09cbb746c230a46c69fe

          • \Users\Admin\AppData\Local\Temp\nso1D44.tmp\nsExec.dll

            Filesize

            6KB

            MD5

            acc2b699edfea5bf5aae45aba3a41e96

            SHA1

            d2accf4d494e43ceb2cff69abe4dd17147d29cc2

            SHA256

            168a974eaa3f588d759db3f47c1a9fdc3494ba1fa1a73a84e5e3b2a4d58abd7e

            SHA512

            e29ea10ada98c71a18273b04f44f385b120d4e8473e441ce5748cfa44a23648814f2656f429b85440157988c88de776c6ac008dc38bf09cbb746c230a46c69fe

          • \Users\Admin\AppData\Local\Temp\nso1D44.tmp\nsExec.dll

            Filesize

            6KB

            MD5

            acc2b699edfea5bf5aae45aba3a41e96

            SHA1

            d2accf4d494e43ceb2cff69abe4dd17147d29cc2

            SHA256

            168a974eaa3f588d759db3f47c1a9fdc3494ba1fa1a73a84e5e3b2a4d58abd7e

            SHA512

            e29ea10ada98c71a18273b04f44f385b120d4e8473e441ce5748cfa44a23648814f2656f429b85440157988c88de776c6ac008dc38bf09cbb746c230a46c69fe

          • \Windows\SysWOW64\hfnapi.dll

            Filesize

            106KB

            MD5

            d8d7d4a3f66eba8deb115db806ca1d59

            SHA1

            1fdb82bb0bb04ddbe78c9f4d7e403aa73296eb0a

            SHA256

            7971f06b3c7d92834e887ebee54816dcca847bbbbcf84a85f96814195620eaaa

            SHA512

            1c8aab60e4003270afeed2a9972dce3cfa4d1355000f3c2382e7ac5ad855da8b4e29d7e7fefaacd0cfd1323893103669c28ce72ef5d7adf0f9ef3921543a3291

          • \Windows\SysWOW64\hfnapi.dll

            Filesize

            106KB

            MD5

            d8d7d4a3f66eba8deb115db806ca1d59

            SHA1

            1fdb82bb0bb04ddbe78c9f4d7e403aa73296eb0a

            SHA256

            7971f06b3c7d92834e887ebee54816dcca847bbbbcf84a85f96814195620eaaa

            SHA512

            1c8aab60e4003270afeed2a9972dce3cfa4d1355000f3c2382e7ac5ad855da8b4e29d7e7fefaacd0cfd1323893103669c28ce72ef5d7adf0f9ef3921543a3291

          • \Windows\SysWOW64\hfnapi.dll

            Filesize

            106KB

            MD5

            d8d7d4a3f66eba8deb115db806ca1d59

            SHA1

            1fdb82bb0bb04ddbe78c9f4d7e403aa73296eb0a

            SHA256

            7971f06b3c7d92834e887ebee54816dcca847bbbbcf84a85f96814195620eaaa

            SHA512

            1c8aab60e4003270afeed2a9972dce3cfa4d1355000f3c2382e7ac5ad855da8b4e29d7e7fefaacd0cfd1323893103669c28ce72ef5d7adf0f9ef3921543a3291

          • \Windows\SysWOW64\hfpapi.dll

            Filesize

            241KB

            MD5

            411188c7a409303aedca1097d8d81ff0

            SHA1

            139dbc83ef220b446be0a1f89addfdee2611c761

            SHA256

            42b4fa4a94a7c946e9b9f68b7eda798f6aaae6f6fb40d78d7d8187a75328f3e0

            SHA512

            e77155225700eaa5ceed32d7182c944fc50b5f4a0228ac97e9f5b624c6f621cd4991d8592241da8ae80599e7c509307ca25271d3187f222352d65d7d4701e46f

          • \Windows\SysWOW64\hfpapi.dll

            Filesize

            241KB

            MD5

            411188c7a409303aedca1097d8d81ff0

            SHA1

            139dbc83ef220b446be0a1f89addfdee2611c761

            SHA256

            42b4fa4a94a7c946e9b9f68b7eda798f6aaae6f6fb40d78d7d8187a75328f3e0

            SHA512

            e77155225700eaa5ceed32d7182c944fc50b5f4a0228ac97e9f5b624c6f621cd4991d8592241da8ae80599e7c509307ca25271d3187f222352d65d7d4701e46f

          • \Windows\SysWOW64\installd.exe

            Filesize

            108KB

            MD5

            710ebfd4423de35b3ea37704c9a4631b

            SHA1

            5381a0801001b02a4b7655c8967935bd2fd9c053

            SHA256

            7c79532e257aac4a7e9a802442c24eb2e9061740a9a6bb0544ff2233d2ed535d

            SHA512

            02d39378daf40068c3a19671ab32cf4cf0d626a35300ce39f8b0ee9a3263e104be67a140f7f943f02ddab8315bd494a5d3a3106c4f6945458d01a781488c290f

          • \Windows\SysWOW64\nethtsrv.exe

            Filesize

            176KB

            MD5

            771a84ae590896d5c3dab9ed3e04c40a

            SHA1

            b34929cd8fe1e079d2a921bcab73d2ed696777e2

            SHA256

            11da4ecd4478d040a08685feb15c19b22accf74745907a54dd5eb5f40a719aee

            SHA512

            1281503d4557b9e48244991f9f688beaf311298f1d52e485a19c87c675408eccf10b187407ae41dbffd404af4b9fe7eeec7434be81481ac96902f709b49c327c

          • \Windows\SysWOW64\netupdsrv.exe

            Filesize

            159KB

            MD5

            84290fc75fbd076f0daba571fc1088de

            SHA1

            4274cf7427fec829a681f884db892c406517693e

            SHA256

            0c5a1ca481728f90c2964148a33b328b47d95213aaa1d6e36533c14ed113a7ce

            SHA512

            0a68e19188185a084526b1f3d775408939fe9630b9d2bb0af9dd8ffea253d8659948e52dda503e98edcafdbb98c5743b7386ac1f892362f91a882e33b45139b6

          • memory/520-58-0x0000000000000000-mapping.dmp

          • memory/560-61-0x0000000000000000-mapping.dmp

          • memory/576-62-0x0000000000000000-mapping.dmp

          • memory/764-87-0x0000000000000000-mapping.dmp

          • memory/788-76-0x0000000000000000-mapping.dmp

          • memory/852-80-0x0000000000000000-mapping.dmp

          • memory/1092-81-0x0000000000000000-mapping.dmp

          • memory/1108-64-0x0000000000000000-mapping.dmp

          • memory/1552-57-0x0000000000000000-mapping.dmp

          • memory/1672-54-0x0000000075111000-0x0000000075113000-memory.dmp

            Filesize

            8KB

          • memory/1672-59-0x0000000000360000-0x00000000007BE000-memory.dmp

            Filesize

            4.4MB

          • memory/1672-90-0x0000000000360000-0x00000000007BE000-memory.dmp

            Filesize

            4.4MB

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

          • memory/2032-86-0x0000000000000000-mapping.dmp