Analysis

  • max time kernel
    41s
  • max time network
    46s
  • platform
    windows7_x64
  • resource
    win7-20220812-en
  • resource tags

    arch:x64arch:x86image:win7-20220812-enlocale:en-usos:windows7-x64system
  • submitted
    23-11-2022 10:15

General

  • Target

    b113572e87f0403042c1b946c4aa3d60d3f79823cb1712e97b2d7cfa43141aad.exe

  • Size

    601KB

  • MD5

    163596e93e273ab0cc380da3c750e181

  • SHA1

    2df03b0dbdf8be97f9f1e5f1b8892fed96509b7f

  • SHA256

    b113572e87f0403042c1b946c4aa3d60d3f79823cb1712e97b2d7cfa43141aad

  • SHA512

    06e103ebb0b4044a60900f800dbe32ab512d2ad9594a5ead52d736f46e8e3571c727efe8e17a36702a722923092815815852d59480c08faaceb95a6ce4d3bed4

  • SSDEEP

    12288:BIny5DYT5Iz6dPVCKw++un5bZAE8wJ3n11o1iFvRa:9UT5MawVunPAEJn1i1ixR

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\b113572e87f0403042c1b946c4aa3d60d3f79823cb1712e97b2d7cfa43141aad.exe
    "C:\Users\Admin\AppData\Local\Temp\b113572e87f0403042c1b946c4aa3d60d3f79823cb1712e97b2d7cfa43141aad.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:1116
    • C:\Windows\SysWOW64\net.exe
      net stop nethttpservice
      2⤵
      • Suspicious use of WriteProcessMemory
      PID:536
      • C:\Windows\SysWOW64\net1.exe
        C:\Windows\system32\net1 stop nethttpservice
        3⤵
          PID:952
      • C:\Windows\SysWOW64\net.exe
        net stop serviceupdater
        2⤵
        • Suspicious use of WriteProcessMemory
        PID:948
        • C:\Windows\SysWOW64\net1.exe
          C:\Windows\system32\net1 stop serviceupdater
          3⤵
            PID:1996
        • C:\Windows\SysWOW64\installd.exe
          "C:\Windows\system32\installd.exe" nethfdrv
          2⤵
          • Executes dropped EXE
          • Loads dropped DLL
          PID:2020
        • C:\Windows\SysWOW64\nethtsrv.exe
          "C:\Windows\system32\nethtsrv.exe" -nfdi
          2⤵
          • Executes dropped EXE
          • Loads dropped DLL
          PID:1680
        • C:\Windows\SysWOW64\netupdsrv.exe
          "C:\Windows\system32\netupdsrv.exe" -nfdi
          2⤵
          • Executes dropped EXE
          PID:780
        • C:\Windows\SysWOW64\net.exe
          net start nethttpservice
          2⤵
          • Suspicious use of WriteProcessMemory
          PID:1760
          • C:\Windows\SysWOW64\net1.exe
            C:\Windows\system32\net1 start nethttpservice
            3⤵
              PID:1100
          • C:\Windows\SysWOW64\net.exe
            net start serviceupdater
            2⤵
            • Suspicious use of WriteProcessMemory
            PID:1420
            • C:\Windows\SysWOW64\net1.exe
              C:\Windows\system32\net1 start serviceupdater
              3⤵
                PID:768
          • C:\Windows\SysWOW64\nethtsrv.exe
            C:\Windows\SysWOW64\nethtsrv.exe
            1⤵
            • Executes dropped EXE
            • Loads dropped DLL
            • Suspicious use of AdjustPrivilegeToken
            PID:1952
          • C:\Windows\SysWOW64\netupdsrv.exe
            C:\Windows\SysWOW64\netupdsrv.exe
            1⤵
            • Executes dropped EXE
            PID:1284

          Network

          MITRE ATT&CK Enterprise v6

          Replay Monitor

          Loading Replay Monitor...

          Downloads

          • C:\Windows\SysWOW64\hfnapi.dll

            Filesize

            106KB

            MD5

            aced5c683ccfba7e6a04b732174b3473

            SHA1

            eb8b963dc995649dc8da82dd15354ee952cacb64

            SHA256

            90361d76ff871ecfc271f1a7487c438f7717f8ee39ce7b8cfd10de86f1a659e0

            SHA512

            aa08d08c65a1fc8905f1bb189c91735795a64c6228a732639e922d576119af97d83b31da0b985a753e7192bd458b303ee2f810767446cd57e0d821e7d613f3cb

          • C:\Windows\SysWOW64\hfpapi.dll

            Filesize

            241KB

            MD5

            f0c644af1bb1eb0bec8e423e1a274835

            SHA1

            192e0fc1c607a4afa762a02e5dd4668a7b377f7c

            SHA256

            803ff0c0f25ac140dbc7cc7c3cbb6a075bc5fd5a7e5428d9c9964de6f30d7a6a

            SHA512

            c8ae6c39da00c605f8954533675ec8d2c3e79f0ae3878364eafa40d56a94767de361e753a50e82b053e50662398eb012a8fcdb3b46f42578ebea6cf829e9ce99

          • C:\Windows\SysWOW64\installd.exe

            Filesize

            108KB

            MD5

            6a33af13a36a28ba12ff6a84346113a2

            SHA1

            8fa446ceaefd3cd323f93063a0b2bbdd264d0c96

            SHA256

            409d1a34c3c9975596a76d4ee3293094ad18dd7529c288281ea6f3f4541a1ef2

            SHA512

            ea7c04263149e2c97504821311136fb85c520e3a1c0a6df2113d6de6d02d1ee6a63663d5d7820e28dced99d54c87d652f4f26f7174e9b92f36b03f3488465bf3

          • C:\Windows\SysWOW64\nethtsrv.exe

            Filesize

            176KB

            MD5

            cd0bf32e81621b0f4cd032e22aed24f7

            SHA1

            435e45326372fa40547110eeb671d7355bc39d89

            SHA256

            946de4a136357d4c07b3f0fc8d9456d41f88da8148c446f19d7c15b05d8dee66

            SHA512

            4ff623275f597c871c434afe7edbed74aee9ed69c3a660d6916f4ee64102bb49d75c53a8b5630d821e23a8302e1b77ebac57b4c2413231b3b0731c8dcabcdbf9

          • C:\Windows\SysWOW64\nethtsrv.exe

            Filesize

            176KB

            MD5

            cd0bf32e81621b0f4cd032e22aed24f7

            SHA1

            435e45326372fa40547110eeb671d7355bc39d89

            SHA256

            946de4a136357d4c07b3f0fc8d9456d41f88da8148c446f19d7c15b05d8dee66

            SHA512

            4ff623275f597c871c434afe7edbed74aee9ed69c3a660d6916f4ee64102bb49d75c53a8b5630d821e23a8302e1b77ebac57b4c2413231b3b0731c8dcabcdbf9

          • C:\Windows\SysWOW64\netupdsrv.exe

            Filesize

            158KB

            MD5

            eafa62e4fe7f8182c57ee3bf965a9b8a

            SHA1

            88f2761cea14fea75f4bf8d8d692d93d6c4ea82d

            SHA256

            5a7efa623b2c3b16df2d9a030ecd6a80d2a7ec1ce48d0c67ffe2d5290d5c9c41

            SHA512

            160c7c7dda776218d040a44eac37bfcda36275f412eae671c42f690b43fbbdc5316c61ced57e72ea73c68d7501a180007574d0a13ad0e411d1bb437ec4181d20

          • C:\Windows\SysWOW64\netupdsrv.exe

            Filesize

            158KB

            MD5

            eafa62e4fe7f8182c57ee3bf965a9b8a

            SHA1

            88f2761cea14fea75f4bf8d8d692d93d6c4ea82d

            SHA256

            5a7efa623b2c3b16df2d9a030ecd6a80d2a7ec1ce48d0c67ffe2d5290d5c9c41

            SHA512

            160c7c7dda776218d040a44eac37bfcda36275f412eae671c42f690b43fbbdc5316c61ced57e72ea73c68d7501a180007574d0a13ad0e411d1bb437ec4181d20

          • \Users\Admin\AppData\Local\Temp\nsiF75C.tmp\System.dll

            Filesize

            11KB

            MD5

            c17103ae9072a06da581dec998343fc1

            SHA1

            b72148c6bdfaada8b8c3f950e610ee7cf1da1f8d

            SHA256

            dc58d8ad81cacb0c1ed72e33bff8f23ea40b5252b5bb55d393a0903e6819ae2f

            SHA512

            d32a71aaef18e993f28096d536e41c4d016850721b31171513ce28bbd805a54fd290b7c3e9d935f72e676a1acfb4f0dcc89d95040a0dd29f2b6975855c18986f

          • \Users\Admin\AppData\Local\Temp\nsiF75C.tmp\nsExec.dll

            Filesize

            6KB

            MD5

            acc2b699edfea5bf5aae45aba3a41e96

            SHA1

            d2accf4d494e43ceb2cff69abe4dd17147d29cc2

            SHA256

            168a974eaa3f588d759db3f47c1a9fdc3494ba1fa1a73a84e5e3b2a4d58abd7e

            SHA512

            e29ea10ada98c71a18273b04f44f385b120d4e8473e441ce5748cfa44a23648814f2656f429b85440157988c88de776c6ac008dc38bf09cbb746c230a46c69fe

          • \Users\Admin\AppData\Local\Temp\nsiF75C.tmp\nsExec.dll

            Filesize

            6KB

            MD5

            acc2b699edfea5bf5aae45aba3a41e96

            SHA1

            d2accf4d494e43ceb2cff69abe4dd17147d29cc2

            SHA256

            168a974eaa3f588d759db3f47c1a9fdc3494ba1fa1a73a84e5e3b2a4d58abd7e

            SHA512

            e29ea10ada98c71a18273b04f44f385b120d4e8473e441ce5748cfa44a23648814f2656f429b85440157988c88de776c6ac008dc38bf09cbb746c230a46c69fe

          • \Users\Admin\AppData\Local\Temp\nsiF75C.tmp\nsExec.dll

            Filesize

            6KB

            MD5

            acc2b699edfea5bf5aae45aba3a41e96

            SHA1

            d2accf4d494e43ceb2cff69abe4dd17147d29cc2

            SHA256

            168a974eaa3f588d759db3f47c1a9fdc3494ba1fa1a73a84e5e3b2a4d58abd7e

            SHA512

            e29ea10ada98c71a18273b04f44f385b120d4e8473e441ce5748cfa44a23648814f2656f429b85440157988c88de776c6ac008dc38bf09cbb746c230a46c69fe

          • \Users\Admin\AppData\Local\Temp\nsiF75C.tmp\nsExec.dll

            Filesize

            6KB

            MD5

            acc2b699edfea5bf5aae45aba3a41e96

            SHA1

            d2accf4d494e43ceb2cff69abe4dd17147d29cc2

            SHA256

            168a974eaa3f588d759db3f47c1a9fdc3494ba1fa1a73a84e5e3b2a4d58abd7e

            SHA512

            e29ea10ada98c71a18273b04f44f385b120d4e8473e441ce5748cfa44a23648814f2656f429b85440157988c88de776c6ac008dc38bf09cbb746c230a46c69fe

          • \Windows\SysWOW64\hfnapi.dll

            Filesize

            106KB

            MD5

            aced5c683ccfba7e6a04b732174b3473

            SHA1

            eb8b963dc995649dc8da82dd15354ee952cacb64

            SHA256

            90361d76ff871ecfc271f1a7487c438f7717f8ee39ce7b8cfd10de86f1a659e0

            SHA512

            aa08d08c65a1fc8905f1bb189c91735795a64c6228a732639e922d576119af97d83b31da0b985a753e7192bd458b303ee2f810767446cd57e0d821e7d613f3cb

          • \Windows\SysWOW64\hfnapi.dll

            Filesize

            106KB

            MD5

            aced5c683ccfba7e6a04b732174b3473

            SHA1

            eb8b963dc995649dc8da82dd15354ee952cacb64

            SHA256

            90361d76ff871ecfc271f1a7487c438f7717f8ee39ce7b8cfd10de86f1a659e0

            SHA512

            aa08d08c65a1fc8905f1bb189c91735795a64c6228a732639e922d576119af97d83b31da0b985a753e7192bd458b303ee2f810767446cd57e0d821e7d613f3cb

          • \Windows\SysWOW64\hfnapi.dll

            Filesize

            106KB

            MD5

            aced5c683ccfba7e6a04b732174b3473

            SHA1

            eb8b963dc995649dc8da82dd15354ee952cacb64

            SHA256

            90361d76ff871ecfc271f1a7487c438f7717f8ee39ce7b8cfd10de86f1a659e0

            SHA512

            aa08d08c65a1fc8905f1bb189c91735795a64c6228a732639e922d576119af97d83b31da0b985a753e7192bd458b303ee2f810767446cd57e0d821e7d613f3cb

          • \Windows\SysWOW64\hfpapi.dll

            Filesize

            241KB

            MD5

            f0c644af1bb1eb0bec8e423e1a274835

            SHA1

            192e0fc1c607a4afa762a02e5dd4668a7b377f7c

            SHA256

            803ff0c0f25ac140dbc7cc7c3cbb6a075bc5fd5a7e5428d9c9964de6f30d7a6a

            SHA512

            c8ae6c39da00c605f8954533675ec8d2c3e79f0ae3878364eafa40d56a94767de361e753a50e82b053e50662398eb012a8fcdb3b46f42578ebea6cf829e9ce99

          • \Windows\SysWOW64\hfpapi.dll

            Filesize

            241KB

            MD5

            f0c644af1bb1eb0bec8e423e1a274835

            SHA1

            192e0fc1c607a4afa762a02e5dd4668a7b377f7c

            SHA256

            803ff0c0f25ac140dbc7cc7c3cbb6a075bc5fd5a7e5428d9c9964de6f30d7a6a

            SHA512

            c8ae6c39da00c605f8954533675ec8d2c3e79f0ae3878364eafa40d56a94767de361e753a50e82b053e50662398eb012a8fcdb3b46f42578ebea6cf829e9ce99

          • \Windows\SysWOW64\installd.exe

            Filesize

            108KB

            MD5

            6a33af13a36a28ba12ff6a84346113a2

            SHA1

            8fa446ceaefd3cd323f93063a0b2bbdd264d0c96

            SHA256

            409d1a34c3c9975596a76d4ee3293094ad18dd7529c288281ea6f3f4541a1ef2

            SHA512

            ea7c04263149e2c97504821311136fb85c520e3a1c0a6df2113d6de6d02d1ee6a63663d5d7820e28dced99d54c87d652f4f26f7174e9b92f36b03f3488465bf3

          • \Windows\SysWOW64\nethtsrv.exe

            Filesize

            176KB

            MD5

            cd0bf32e81621b0f4cd032e22aed24f7

            SHA1

            435e45326372fa40547110eeb671d7355bc39d89

            SHA256

            946de4a136357d4c07b3f0fc8d9456d41f88da8148c446f19d7c15b05d8dee66

            SHA512

            4ff623275f597c871c434afe7edbed74aee9ed69c3a660d6916f4ee64102bb49d75c53a8b5630d821e23a8302e1b77ebac57b4c2413231b3b0731c8dcabcdbf9

          • \Windows\SysWOW64\netupdsrv.exe

            Filesize

            158KB

            MD5

            eafa62e4fe7f8182c57ee3bf965a9b8a

            SHA1

            88f2761cea14fea75f4bf8d8d692d93d6c4ea82d

            SHA256

            5a7efa623b2c3b16df2d9a030ecd6a80d2a7ec1ce48d0c67ffe2d5290d5c9c41

            SHA512

            160c7c7dda776218d040a44eac37bfcda36275f412eae671c42f690b43fbbdc5316c61ced57e72ea73c68d7501a180007574d0a13ad0e411d1bb437ec4181d20

          • memory/536-57-0x0000000000000000-mapping.dmp

          • memory/768-88-0x0000000000000000-mapping.dmp

          • memory/780-77-0x0000000000000000-mapping.dmp

          • memory/948-60-0x0000000000000000-mapping.dmp

          • memory/952-58-0x0000000000000000-mapping.dmp

          • memory/1100-82-0x0000000000000000-mapping.dmp

          • memory/1116-75-0x0000000000360000-0x00000000007BE000-memory.dmp

            Filesize

            4.4MB

          • memory/1116-54-0x0000000074D61000-0x0000000074D63000-memory.dmp

            Filesize

            8KB

          • memory/1116-61-0x0000000000360000-0x00000000007BE000-memory.dmp

            Filesize

            4.4MB

          • memory/1116-91-0x0000000000360000-0x00000000007BE000-memory.dmp

            Filesize

            4.4MB

          • memory/1420-87-0x0000000000000000-mapping.dmp

          • memory/1680-70-0x0000000000000000-mapping.dmp

          • memory/1760-81-0x0000000000000000-mapping.dmp

          • memory/1996-62-0x0000000000000000-mapping.dmp

          • memory/2020-64-0x0000000000000000-mapping.dmp