Analysis

  • max time kernel
    92s
  • max time network
    29s
  • platform
    windows7_x64
  • resource
    win7-20221111-en
  • resource tags

    arch:x64arch:x86image:win7-20221111-enlocale:en-usos:windows7-x64system
  • submitted
    23-11-2022 10:59

General

  • Target

    22d808f824182cd852e51364fcd874882662cff07a73fa315fe01d54e18eca36.exe

  • Size

    445KB

  • MD5

    3d7d08bd7086c0feb0f7a9b6472a9c14

  • SHA1

    2548ef5b847f24226f5bd214a447e7655ad37eda

  • SHA256

    22d808f824182cd852e51364fcd874882662cff07a73fa315fe01d54e18eca36

  • SHA512

    ac2de0c81e584318c3e394809519904d98fa8ebb394a8105991890bcfbdd1c764d80f9e4b7a0de135d6f922713e913a8a1b4f9cb5943cba07a24d226f567df59

  • SSDEEP

    12288:LleMi6iMNOcgNvROVMs4183/Qrmax2LpV1BfoPXvvC:LoMJNORNvROVMx1HxkpVjwvvvC

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\22d808f824182cd852e51364fcd874882662cff07a73fa315fe01d54e18eca36.exe
    "C:\Users\Admin\AppData\Local\Temp\22d808f824182cd852e51364fcd874882662cff07a73fa315fe01d54e18eca36.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:1452
    • C:\Windows\SysWOW64\net.exe
      net stop nethttpservice
      2⤵
      • Suspicious use of WriteProcessMemory
      PID:1064
      • C:\Windows\SysWOW64\net1.exe
        C:\Windows\system32\net1 stop nethttpservice
        3⤵
          PID:524
      • C:\Windows\SysWOW64\net.exe
        net stop serviceupdater
        2⤵
        • Suspicious use of WriteProcessMemory
        PID:664
        • C:\Windows\SysWOW64\net1.exe
          C:\Windows\system32\net1 stop serviceupdater
          3⤵
            PID:1460
        • C:\Windows\SysWOW64\installd.exe
          "C:\Windows\system32\installd.exe" nethfdrv
          2⤵
          • Executes dropped EXE
          • Loads dropped DLL
          PID:1860
        • C:\Windows\SysWOW64\nethtsrv.exe
          "C:\Windows\system32\nethtsrv.exe" -nfdi
          2⤵
          • Executes dropped EXE
          • Loads dropped DLL
          PID:1640
        • C:\Windows\SysWOW64\netupdsrv.exe
          "C:\Windows\system32\netupdsrv.exe" -nfdi
          2⤵
          • Executes dropped EXE
          PID:1724
        • C:\Windows\SysWOW64\net.exe
          net start nethttpservice
          2⤵
          • Suspicious use of WriteProcessMemory
          PID:684
          • C:\Windows\SysWOW64\net1.exe
            C:\Windows\system32\net1 start nethttpservice
            3⤵
              PID:1892
          • C:\Windows\SysWOW64\net.exe
            net start serviceupdater
            2⤵
            • Suspicious use of WriteProcessMemory
            PID:1440
            • C:\Windows\SysWOW64\net1.exe
              C:\Windows\system32\net1 start serviceupdater
              3⤵
                PID:1868
          • C:\Windows\SysWOW64\nethtsrv.exe
            C:\Windows\SysWOW64\nethtsrv.exe
            1⤵
            • Executes dropped EXE
            • Loads dropped DLL
            • Suspicious use of AdjustPrivilegeToken
            PID:1364
          • C:\Windows\SysWOW64\netupdsrv.exe
            C:\Windows\SysWOW64\netupdsrv.exe
            1⤵
            • Executes dropped EXE
            PID:1756

          Network

          MITRE ATT&CK Enterprise v6

          Replay Monitor

          Loading Replay Monitor...

          Downloads

          • C:\Windows\SysWOW64\hfnapi.dll

            Filesize

            106KB

            MD5

            3d79ad4f8d3b2d944c7535f0cb57d392

            SHA1

            64ce47229786b3af5587bb7208e7b3eb530597a5

            SHA256

            639fc26cd6fbf36ef6efd856a74adf91eaa63274b95cb1f640001720a6295e0c

            SHA512

            7f044cb09252b081fded5932a29c0948f90224a85810e94d898a4c844ab24eee1e77cd535c745bdc7667c2999e966a3796e29908240094f1d54d64684efc5eb1

          • C:\Windows\SysWOW64\hfpapi.dll

            Filesize

            241KB

            MD5

            9f8db90e7d3313acd1b45f0bcf713a60

            SHA1

            20b62f6ff8706e148ac16ee90bc4e83196cb3af1

            SHA256

            8b0da05e1b2417d8f85ce164886cb1ce686152b92501feb3b361659f7e0a5e0f

            SHA512

            4df86fcf2da3ff864420425297e3c32206b261ccd613091e6e6a7440307016a167c13f531f787c0e3cd3441da0bed8547cff447feb1987355e9b072067008b38

          • C:\Windows\SysWOW64\installd.exe

            Filesize

            108KB

            MD5

            15f305808566b61036cba981c888245e

            SHA1

            622d02b3c537809826c31626ac89681ce94aec83

            SHA256

            4bfd286e84b5c368e051ea64d528a98109a47b62138ccfb113b40dab355d9884

            SHA512

            3718e4e7be6fc94fdb63ee8abbaf6824a52fa652542c0c92eca51d26aaa3ca48617a852e55037176747fea9b07aa8dde50615e01a8db4484f4f181eb660fb5f7

          • C:\Windows\SysWOW64\nethtsrv.exe

            Filesize

            176KB

            MD5

            9892a2bc0ebdc9c0217539002cfb7523

            SHA1

            53dbfa0ead4231df6df1fa3e6203d85af9338ebf

            SHA256

            304671145cd811a91459323d881166d901a4536d489b42278c39e345154091db

            SHA512

            a9aec260ac97d1bd344dbc917920b5cadfb4fdbfff99e2d333be4de3a44763a74185fa5c5aa65e831dc756bcbd51d9ff3833da3e0ad09be8fb834587183bb5fb

          • C:\Windows\SysWOW64\nethtsrv.exe

            Filesize

            176KB

            MD5

            9892a2bc0ebdc9c0217539002cfb7523

            SHA1

            53dbfa0ead4231df6df1fa3e6203d85af9338ebf

            SHA256

            304671145cd811a91459323d881166d901a4536d489b42278c39e345154091db

            SHA512

            a9aec260ac97d1bd344dbc917920b5cadfb4fdbfff99e2d333be4de3a44763a74185fa5c5aa65e831dc756bcbd51d9ff3833da3e0ad09be8fb834587183bb5fb

          • C:\Windows\SysWOW64\netupdsrv.exe

            Filesize

            158KB

            MD5

            873d529d2caeaa78b1be698f142ba226

            SHA1

            bc4b4b8710f55774693753d0dfdc3b4f7e1dcf30

            SHA256

            fd392a05bfcad6f892e8032bc7f9391f0f878051ad1d2abb8cd96f0933284422

            SHA512

            ed6f36d0fe1cbb37274708ba03d5d2797e27cff55f01c4e41074f8465f8b241c93ba9cff528e003e8cf508813d87e934475efad719fa464598a1bd358fa841f6

          • C:\Windows\SysWOW64\netupdsrv.exe

            Filesize

            158KB

            MD5

            873d529d2caeaa78b1be698f142ba226

            SHA1

            bc4b4b8710f55774693753d0dfdc3b4f7e1dcf30

            SHA256

            fd392a05bfcad6f892e8032bc7f9391f0f878051ad1d2abb8cd96f0933284422

            SHA512

            ed6f36d0fe1cbb37274708ba03d5d2797e27cff55f01c4e41074f8465f8b241c93ba9cff528e003e8cf508813d87e934475efad719fa464598a1bd358fa841f6

          • \Users\Admin\AppData\Local\Temp\nsyE820.tmp\System.dll

            Filesize

            11KB

            MD5

            c17103ae9072a06da581dec998343fc1

            SHA1

            b72148c6bdfaada8b8c3f950e610ee7cf1da1f8d

            SHA256

            dc58d8ad81cacb0c1ed72e33bff8f23ea40b5252b5bb55d393a0903e6819ae2f

            SHA512

            d32a71aaef18e993f28096d536e41c4d016850721b31171513ce28bbd805a54fd290b7c3e9d935f72e676a1acfb4f0dcc89d95040a0dd29f2b6975855c18986f

          • \Users\Admin\AppData\Local\Temp\nsyE820.tmp\nsExec.dll

            Filesize

            6KB

            MD5

            acc2b699edfea5bf5aae45aba3a41e96

            SHA1

            d2accf4d494e43ceb2cff69abe4dd17147d29cc2

            SHA256

            168a974eaa3f588d759db3f47c1a9fdc3494ba1fa1a73a84e5e3b2a4d58abd7e

            SHA512

            e29ea10ada98c71a18273b04f44f385b120d4e8473e441ce5748cfa44a23648814f2656f429b85440157988c88de776c6ac008dc38bf09cbb746c230a46c69fe

          • \Users\Admin\AppData\Local\Temp\nsyE820.tmp\nsExec.dll

            Filesize

            6KB

            MD5

            acc2b699edfea5bf5aae45aba3a41e96

            SHA1

            d2accf4d494e43ceb2cff69abe4dd17147d29cc2

            SHA256

            168a974eaa3f588d759db3f47c1a9fdc3494ba1fa1a73a84e5e3b2a4d58abd7e

            SHA512

            e29ea10ada98c71a18273b04f44f385b120d4e8473e441ce5748cfa44a23648814f2656f429b85440157988c88de776c6ac008dc38bf09cbb746c230a46c69fe

          • \Users\Admin\AppData\Local\Temp\nsyE820.tmp\nsExec.dll

            Filesize

            6KB

            MD5

            acc2b699edfea5bf5aae45aba3a41e96

            SHA1

            d2accf4d494e43ceb2cff69abe4dd17147d29cc2

            SHA256

            168a974eaa3f588d759db3f47c1a9fdc3494ba1fa1a73a84e5e3b2a4d58abd7e

            SHA512

            e29ea10ada98c71a18273b04f44f385b120d4e8473e441ce5748cfa44a23648814f2656f429b85440157988c88de776c6ac008dc38bf09cbb746c230a46c69fe

          • \Users\Admin\AppData\Local\Temp\nsyE820.tmp\nsExec.dll

            Filesize

            6KB

            MD5

            acc2b699edfea5bf5aae45aba3a41e96

            SHA1

            d2accf4d494e43ceb2cff69abe4dd17147d29cc2

            SHA256

            168a974eaa3f588d759db3f47c1a9fdc3494ba1fa1a73a84e5e3b2a4d58abd7e

            SHA512

            e29ea10ada98c71a18273b04f44f385b120d4e8473e441ce5748cfa44a23648814f2656f429b85440157988c88de776c6ac008dc38bf09cbb746c230a46c69fe

          • \Windows\SysWOW64\hfnapi.dll

            Filesize

            106KB

            MD5

            3d79ad4f8d3b2d944c7535f0cb57d392

            SHA1

            64ce47229786b3af5587bb7208e7b3eb530597a5

            SHA256

            639fc26cd6fbf36ef6efd856a74adf91eaa63274b95cb1f640001720a6295e0c

            SHA512

            7f044cb09252b081fded5932a29c0948f90224a85810e94d898a4c844ab24eee1e77cd535c745bdc7667c2999e966a3796e29908240094f1d54d64684efc5eb1

          • \Windows\SysWOW64\hfnapi.dll

            Filesize

            106KB

            MD5

            3d79ad4f8d3b2d944c7535f0cb57d392

            SHA1

            64ce47229786b3af5587bb7208e7b3eb530597a5

            SHA256

            639fc26cd6fbf36ef6efd856a74adf91eaa63274b95cb1f640001720a6295e0c

            SHA512

            7f044cb09252b081fded5932a29c0948f90224a85810e94d898a4c844ab24eee1e77cd535c745bdc7667c2999e966a3796e29908240094f1d54d64684efc5eb1

          • \Windows\SysWOW64\hfnapi.dll

            Filesize

            106KB

            MD5

            3d79ad4f8d3b2d944c7535f0cb57d392

            SHA1

            64ce47229786b3af5587bb7208e7b3eb530597a5

            SHA256

            639fc26cd6fbf36ef6efd856a74adf91eaa63274b95cb1f640001720a6295e0c

            SHA512

            7f044cb09252b081fded5932a29c0948f90224a85810e94d898a4c844ab24eee1e77cd535c745bdc7667c2999e966a3796e29908240094f1d54d64684efc5eb1

          • \Windows\SysWOW64\hfpapi.dll

            Filesize

            241KB

            MD5

            9f8db90e7d3313acd1b45f0bcf713a60

            SHA1

            20b62f6ff8706e148ac16ee90bc4e83196cb3af1

            SHA256

            8b0da05e1b2417d8f85ce164886cb1ce686152b92501feb3b361659f7e0a5e0f

            SHA512

            4df86fcf2da3ff864420425297e3c32206b261ccd613091e6e6a7440307016a167c13f531f787c0e3cd3441da0bed8547cff447feb1987355e9b072067008b38

          • \Windows\SysWOW64\hfpapi.dll

            Filesize

            241KB

            MD5

            9f8db90e7d3313acd1b45f0bcf713a60

            SHA1

            20b62f6ff8706e148ac16ee90bc4e83196cb3af1

            SHA256

            8b0da05e1b2417d8f85ce164886cb1ce686152b92501feb3b361659f7e0a5e0f

            SHA512

            4df86fcf2da3ff864420425297e3c32206b261ccd613091e6e6a7440307016a167c13f531f787c0e3cd3441da0bed8547cff447feb1987355e9b072067008b38

          • \Windows\SysWOW64\installd.exe

            Filesize

            108KB

            MD5

            15f305808566b61036cba981c888245e

            SHA1

            622d02b3c537809826c31626ac89681ce94aec83

            SHA256

            4bfd286e84b5c368e051ea64d528a98109a47b62138ccfb113b40dab355d9884

            SHA512

            3718e4e7be6fc94fdb63ee8abbaf6824a52fa652542c0c92eca51d26aaa3ca48617a852e55037176747fea9b07aa8dde50615e01a8db4484f4f181eb660fb5f7

          • \Windows\SysWOW64\nethtsrv.exe

            Filesize

            176KB

            MD5

            9892a2bc0ebdc9c0217539002cfb7523

            SHA1

            53dbfa0ead4231df6df1fa3e6203d85af9338ebf

            SHA256

            304671145cd811a91459323d881166d901a4536d489b42278c39e345154091db

            SHA512

            a9aec260ac97d1bd344dbc917920b5cadfb4fdbfff99e2d333be4de3a44763a74185fa5c5aa65e831dc756bcbd51d9ff3833da3e0ad09be8fb834587183bb5fb

          • \Windows\SysWOW64\netupdsrv.exe

            Filesize

            158KB

            MD5

            873d529d2caeaa78b1be698f142ba226

            SHA1

            bc4b4b8710f55774693753d0dfdc3b4f7e1dcf30

            SHA256

            fd392a05bfcad6f892e8032bc7f9391f0f878051ad1d2abb8cd96f0933284422

            SHA512

            ed6f36d0fe1cbb37274708ba03d5d2797e27cff55f01c4e41074f8465f8b241c93ba9cff528e003e8cf508813d87e934475efad719fa464598a1bd358fa841f6

          • memory/524-58-0x0000000000000000-mapping.dmp

          • memory/664-60-0x0000000000000000-mapping.dmp

          • memory/684-79-0x0000000000000000-mapping.dmp

          • memory/1064-57-0x0000000000000000-mapping.dmp

          • memory/1440-85-0x0000000000000000-mapping.dmp

          • memory/1452-54-0x0000000075C81000-0x0000000075C83000-memory.dmp

            Filesize

            8KB

          • memory/1460-61-0x0000000000000000-mapping.dmp

          • memory/1640-69-0x0000000000000000-mapping.dmp

          • memory/1724-75-0x0000000000000000-mapping.dmp

          • memory/1860-63-0x0000000000000000-mapping.dmp

          • memory/1868-86-0x0000000000000000-mapping.dmp

          • memory/1892-80-0x0000000000000000-mapping.dmp