Analysis

  • max time kernel
    49s
  • max time network
    34s
  • platform
    windows7_x64
  • resource
    win7-20221111-en
  • resource tags

    arch:x64arch:x86image:win7-20221111-enlocale:en-usos:windows7-x64system
  • submitted
    23-11-2022 10:19

General

  • Target

    9121db95aa838c57e6a6029732a59d4af12bdad5b753d28337b31e8a750dd6d5.exe

  • Size

    601KB

  • MD5

    f7e9c115da662f005f661c35bf5d1167

  • SHA1

    4bddc12887f245e053cabe67169dbb2212b49571

  • SHA256

    9121db95aa838c57e6a6029732a59d4af12bdad5b753d28337b31e8a750dd6d5

  • SHA512

    9e213f6e28bd3549b5a8fe5d23c1e226269372caf11c8436672cad29c5e1e28514cee9fecdbd6befc333ea7ca2e9504988378807411fb18a43b4c0f53ee4a5b0

  • SSDEEP

    12288:/Iny5DYTt32baDKoEf7rQ22tzMBeUFKpUcS1P:nUTt32Fe229MBBVP

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\9121db95aa838c57e6a6029732a59d4af12bdad5b753d28337b31e8a750dd6d5.exe
    "C:\Users\Admin\AppData\Local\Temp\9121db95aa838c57e6a6029732a59d4af12bdad5b753d28337b31e8a750dd6d5.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:892
    • C:\Windows\SysWOW64\net.exe
      net stop nethttpservice
      2⤵
      • Suspicious use of WriteProcessMemory
      PID:1476
      • C:\Windows\SysWOW64\net1.exe
        C:\Windows\system32\net1 stop nethttpservice
        3⤵
          PID:268
      • 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:828
        • C:\Windows\SysWOW64\installd.exe
          "C:\Windows\system32\installd.exe" nethfdrv
          2⤵
          • Executes dropped EXE
          • Loads dropped DLL
          PID:1436
        • C:\Windows\SysWOW64\nethtsrv.exe
          "C:\Windows\system32\nethtsrv.exe" -nfdi
          2⤵
          • Executes dropped EXE
          • Loads dropped DLL
          PID:1160
        • C:\Windows\SysWOW64\netupdsrv.exe
          "C:\Windows\system32\netupdsrv.exe" -nfdi
          2⤵
          • Executes dropped EXE
          PID:2000
        • C:\Windows\SysWOW64\net.exe
          net start nethttpservice
          2⤵
          • Suspicious use of WriteProcessMemory
          PID:1496
          • C:\Windows\SysWOW64\net1.exe
            C:\Windows\system32\net1 start nethttpservice
            3⤵
              PID:1532
          • C:\Windows\SysWOW64\net.exe
            net start serviceupdater
            2⤵
            • Suspicious use of WriteProcessMemory
            PID:888
            • C:\Windows\SysWOW64\net1.exe
              C:\Windows\system32\net1 start serviceupdater
              3⤵
                PID:2040
          • C:\Windows\SysWOW64\nethtsrv.exe
            C:\Windows\SysWOW64\nethtsrv.exe
            1⤵
            • Executes dropped EXE
            • Loads dropped DLL
            • Suspicious use of AdjustPrivilegeToken
            PID:1728
          • C:\Windows\SysWOW64\netupdsrv.exe
            C:\Windows\SysWOW64\netupdsrv.exe
            1⤵
            • Executes dropped EXE
            PID:2024

          Network

          MITRE ATT&CK Matrix ATT&CK v6

          Discovery

          Query Registry

          1
          T1012

          System Information Discovery

          1
          T1082

          Replay Monitor

          Loading Replay Monitor...

          Downloads

          • C:\Windows\SysWOW64\hfnapi.dll
            Filesize

            106KB

            MD5

            5844b8247755d1238915a67ab072eb32

            SHA1

            6700b47281b470943083f22eea9a67b09ed92122

            SHA256

            fa08c0f98a834ca0a006adec02107c7f1298a6ca69501e90792b7686b80354b7

            SHA512

            806ac9504a555db2ef03be1bdd8774ea6d0beaf0d8245b72c8106585f77e0970a421911d8b72c804a61fd775c0aa96b28395d932ba1dcc9ea74f71e79e6bf553

          • C:\Windows\SysWOW64\hfpapi.dll
            Filesize

            241KB

            MD5

            eccb01c5e8d2bd94cf101987e2095dc5

            SHA1

            bde656dd20b02d94a19765f19b1242cb9698b0ce

            SHA256

            ca6974a73a2443d10b4cfc7c45f1f95a70ce43a8654d54fdda073cde0cc6b23c

            SHA512

            20bcaaee6745affb3d57466c57219c1b581ab827b4820f65601906b46e61a3ffaa06072fb69cfb5268cc1e172bc2106b3fc25f2e2c583c79243c40fabb54e66a

          • C:\Windows\SysWOW64\installd.exe
            Filesize

            108KB

            MD5

            a5b89d670229ff84439f6b43ce1848a3

            SHA1

            f9b3669238ebb1609c566af6af1e3c8dd7691566

            SHA256

            f4ec67a108f0205884078fa5e2e4d71f8436f91ee733a061082146c3cb307cfd

            SHA512

            badbbf40a831cf6eb19d8eb8b99960c990c59318a71e4cef10e8ac19d95f23a5193d3d3c3eae38bdf2ca9c2ed42016d785550536ce8cfa2c8de61f68c6d6f6fd

          • C:\Windows\SysWOW64\nethtsrv.exe
            Filesize

            176KB

            MD5

            5de7b6c0bd0e68f43e80afdf24f0f1fb

            SHA1

            28403fc684d45fb00ee76e20929cb6be86ef1a3d

            SHA256

            ad730ba2c9692751417357ed4dd4847b9cb49d8eda840b8d5488136b5b34dccf

            SHA512

            5ad148706737b2bf5e73b9d374b2abd8a84a06bcddedbce975414caea0f60619656e34c7dcf520fb606a62f28508170ed284b3e7481efda33fdd8250b4189615

          • C:\Windows\SysWOW64\nethtsrv.exe
            Filesize

            176KB

            MD5

            5de7b6c0bd0e68f43e80afdf24f0f1fb

            SHA1

            28403fc684d45fb00ee76e20929cb6be86ef1a3d

            SHA256

            ad730ba2c9692751417357ed4dd4847b9cb49d8eda840b8d5488136b5b34dccf

            SHA512

            5ad148706737b2bf5e73b9d374b2abd8a84a06bcddedbce975414caea0f60619656e34c7dcf520fb606a62f28508170ed284b3e7481efda33fdd8250b4189615

          • C:\Windows\SysWOW64\netupdsrv.exe
            Filesize

            158KB

            MD5

            e871187057354fa945ea6b1768fdfcc3

            SHA1

            9f360132a14811925154f99fc63e13fd947c3762

            SHA256

            62e8fad0cfcaee3d8c9227257f5ea6204c0380159b9ee28dd54edba786c66e6a

            SHA512

            4ad52943aaccd4eb67939cb583d2e8e9acad0220fe3fb15ac3dd5f72554e31f607cb8c76f47567ff231ccb2238e084d1e63800b332b28539e4de5a375f53c2fb

          • C:\Windows\SysWOW64\netupdsrv.exe
            Filesize

            158KB

            MD5

            e871187057354fa945ea6b1768fdfcc3

            SHA1

            9f360132a14811925154f99fc63e13fd947c3762

            SHA256

            62e8fad0cfcaee3d8c9227257f5ea6204c0380159b9ee28dd54edba786c66e6a

            SHA512

            4ad52943aaccd4eb67939cb583d2e8e9acad0220fe3fb15ac3dd5f72554e31f607cb8c76f47567ff231ccb2238e084d1e63800b332b28539e4de5a375f53c2fb

          • \Users\Admin\AppData\Local\Temp\nsy81E.tmp\System.dll
            Filesize

            11KB

            MD5

            c17103ae9072a06da581dec998343fc1

            SHA1

            b72148c6bdfaada8b8c3f950e610ee7cf1da1f8d

            SHA256

            dc58d8ad81cacb0c1ed72e33bff8f23ea40b5252b5bb55d393a0903e6819ae2f

            SHA512

            d32a71aaef18e993f28096d536e41c4d016850721b31171513ce28bbd805a54fd290b7c3e9d935f72e676a1acfb4f0dcc89d95040a0dd29f2b6975855c18986f

          • \Users\Admin\AppData\Local\Temp\nsy81E.tmp\nsExec.dll
            Filesize

            6KB

            MD5

            acc2b699edfea5bf5aae45aba3a41e96

            SHA1

            d2accf4d494e43ceb2cff69abe4dd17147d29cc2

            SHA256

            168a974eaa3f588d759db3f47c1a9fdc3494ba1fa1a73a84e5e3b2a4d58abd7e

            SHA512

            e29ea10ada98c71a18273b04f44f385b120d4e8473e441ce5748cfa44a23648814f2656f429b85440157988c88de776c6ac008dc38bf09cbb746c230a46c69fe

          • \Users\Admin\AppData\Local\Temp\nsy81E.tmp\nsExec.dll
            Filesize

            6KB

            MD5

            acc2b699edfea5bf5aae45aba3a41e96

            SHA1

            d2accf4d494e43ceb2cff69abe4dd17147d29cc2

            SHA256

            168a974eaa3f588d759db3f47c1a9fdc3494ba1fa1a73a84e5e3b2a4d58abd7e

            SHA512

            e29ea10ada98c71a18273b04f44f385b120d4e8473e441ce5748cfa44a23648814f2656f429b85440157988c88de776c6ac008dc38bf09cbb746c230a46c69fe

          • \Users\Admin\AppData\Local\Temp\nsy81E.tmp\nsExec.dll
            Filesize

            6KB

            MD5

            acc2b699edfea5bf5aae45aba3a41e96

            SHA1

            d2accf4d494e43ceb2cff69abe4dd17147d29cc2

            SHA256

            168a974eaa3f588d759db3f47c1a9fdc3494ba1fa1a73a84e5e3b2a4d58abd7e

            SHA512

            e29ea10ada98c71a18273b04f44f385b120d4e8473e441ce5748cfa44a23648814f2656f429b85440157988c88de776c6ac008dc38bf09cbb746c230a46c69fe

          • \Users\Admin\AppData\Local\Temp\nsy81E.tmp\nsExec.dll
            Filesize

            6KB

            MD5

            acc2b699edfea5bf5aae45aba3a41e96

            SHA1

            d2accf4d494e43ceb2cff69abe4dd17147d29cc2

            SHA256

            168a974eaa3f588d759db3f47c1a9fdc3494ba1fa1a73a84e5e3b2a4d58abd7e

            SHA512

            e29ea10ada98c71a18273b04f44f385b120d4e8473e441ce5748cfa44a23648814f2656f429b85440157988c88de776c6ac008dc38bf09cbb746c230a46c69fe

          • \Windows\SysWOW64\hfnapi.dll
            Filesize

            106KB

            MD5

            5844b8247755d1238915a67ab072eb32

            SHA1

            6700b47281b470943083f22eea9a67b09ed92122

            SHA256

            fa08c0f98a834ca0a006adec02107c7f1298a6ca69501e90792b7686b80354b7

            SHA512

            806ac9504a555db2ef03be1bdd8774ea6d0beaf0d8245b72c8106585f77e0970a421911d8b72c804a61fd775c0aa96b28395d932ba1dcc9ea74f71e79e6bf553

          • \Windows\SysWOW64\hfnapi.dll
            Filesize

            106KB

            MD5

            5844b8247755d1238915a67ab072eb32

            SHA1

            6700b47281b470943083f22eea9a67b09ed92122

            SHA256

            fa08c0f98a834ca0a006adec02107c7f1298a6ca69501e90792b7686b80354b7

            SHA512

            806ac9504a555db2ef03be1bdd8774ea6d0beaf0d8245b72c8106585f77e0970a421911d8b72c804a61fd775c0aa96b28395d932ba1dcc9ea74f71e79e6bf553

          • \Windows\SysWOW64\hfnapi.dll
            Filesize

            106KB

            MD5

            5844b8247755d1238915a67ab072eb32

            SHA1

            6700b47281b470943083f22eea9a67b09ed92122

            SHA256

            fa08c0f98a834ca0a006adec02107c7f1298a6ca69501e90792b7686b80354b7

            SHA512

            806ac9504a555db2ef03be1bdd8774ea6d0beaf0d8245b72c8106585f77e0970a421911d8b72c804a61fd775c0aa96b28395d932ba1dcc9ea74f71e79e6bf553

          • \Windows\SysWOW64\hfpapi.dll
            Filesize

            241KB

            MD5

            eccb01c5e8d2bd94cf101987e2095dc5

            SHA1

            bde656dd20b02d94a19765f19b1242cb9698b0ce

            SHA256

            ca6974a73a2443d10b4cfc7c45f1f95a70ce43a8654d54fdda073cde0cc6b23c

            SHA512

            20bcaaee6745affb3d57466c57219c1b581ab827b4820f65601906b46e61a3ffaa06072fb69cfb5268cc1e172bc2106b3fc25f2e2c583c79243c40fabb54e66a

          • \Windows\SysWOW64\hfpapi.dll
            Filesize

            241KB

            MD5

            eccb01c5e8d2bd94cf101987e2095dc5

            SHA1

            bde656dd20b02d94a19765f19b1242cb9698b0ce

            SHA256

            ca6974a73a2443d10b4cfc7c45f1f95a70ce43a8654d54fdda073cde0cc6b23c

            SHA512

            20bcaaee6745affb3d57466c57219c1b581ab827b4820f65601906b46e61a3ffaa06072fb69cfb5268cc1e172bc2106b3fc25f2e2c583c79243c40fabb54e66a

          • \Windows\SysWOW64\installd.exe
            Filesize

            108KB

            MD5

            a5b89d670229ff84439f6b43ce1848a3

            SHA1

            f9b3669238ebb1609c566af6af1e3c8dd7691566

            SHA256

            f4ec67a108f0205884078fa5e2e4d71f8436f91ee733a061082146c3cb307cfd

            SHA512

            badbbf40a831cf6eb19d8eb8b99960c990c59318a71e4cef10e8ac19d95f23a5193d3d3c3eae38bdf2ca9c2ed42016d785550536ce8cfa2c8de61f68c6d6f6fd

          • \Windows\SysWOW64\nethtsrv.exe
            Filesize

            176KB

            MD5

            5de7b6c0bd0e68f43e80afdf24f0f1fb

            SHA1

            28403fc684d45fb00ee76e20929cb6be86ef1a3d

            SHA256

            ad730ba2c9692751417357ed4dd4847b9cb49d8eda840b8d5488136b5b34dccf

            SHA512

            5ad148706737b2bf5e73b9d374b2abd8a84a06bcddedbce975414caea0f60619656e34c7dcf520fb606a62f28508170ed284b3e7481efda33fdd8250b4189615

          • \Windows\SysWOW64\netupdsrv.exe
            Filesize

            158KB

            MD5

            e871187057354fa945ea6b1768fdfcc3

            SHA1

            9f360132a14811925154f99fc63e13fd947c3762

            SHA256

            62e8fad0cfcaee3d8c9227257f5ea6204c0380159b9ee28dd54edba786c66e6a

            SHA512

            4ad52943aaccd4eb67939cb583d2e8e9acad0220fe3fb15ac3dd5f72554e31f607cb8c76f47567ff231ccb2238e084d1e63800b332b28539e4de5a375f53c2fb

          • memory/268-59-0x0000000000000000-mapping.dmp
          • memory/828-62-0x0000000000000000-mapping.dmp
          • memory/888-87-0x0000000000000000-mapping.dmp
          • memory/892-91-0x0000000000360000-0x00000000007BE000-memory.dmp
            Filesize

            4.4MB

          • memory/892-54-0x0000000075DF1000-0x0000000075DF3000-memory.dmp
            Filesize

            8KB

          • memory/892-55-0x0000000000360000-0x00000000007BE000-memory.dmp
            Filesize

            4.4MB

          • memory/892-85-0x0000000000360000-0x00000000007BE000-memory.dmp
            Filesize

            4.4MB

          • memory/1160-70-0x0000000000000000-mapping.dmp
          • memory/1436-64-0x0000000000000000-mapping.dmp
          • memory/1476-58-0x0000000000000000-mapping.dmp
          • memory/1496-80-0x0000000000000000-mapping.dmp
          • memory/1532-81-0x0000000000000000-mapping.dmp
          • memory/1652-61-0x0000000000000000-mapping.dmp
          • memory/2000-76-0x0000000000000000-mapping.dmp
          • memory/2040-88-0x0000000000000000-mapping.dmp