Analysis

  • max time kernel
    46s
  • max time network
    48s
  • platform
    windows7_x64
  • resource
    win7-20220812-en
  • resource tags

    arch:x64arch:x86image:win7-20220812-enlocale:en-usos:windows7-x64system
  • submitted
    25-11-2022 13:39

General

  • Target

    d6b2da2684ea05a4f365a7d18b35416cc143cccbd900d214f7245493cad088c1.exe

  • Size

    561KB

  • MD5

    d2534d86c194eda2695685a8a11ff704

  • SHA1

    556845a954af9e33e982e88ab1192bcab7ad0063

  • SHA256

    d6b2da2684ea05a4f365a7d18b35416cc143cccbd900d214f7245493cad088c1

  • SHA512

    896fe7cffbb7741944e47ba17dcbbf4c10bf557d582b7e96fc11915844ae425326b91d22742c7d973c26efb9f8490b46719b40121b2d3045adcf0cd3df854d33

  • SSDEEP

    12288:8PRYzObfumwvI28YGIb6V6CLixwR1tmOhJ+ngEPUWZ8iJHwuS:NzCfZJWY6CLJLtBigEP/Zr1wu

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\d6b2da2684ea05a4f365a7d18b35416cc143cccbd900d214f7245493cad088c1.exe
    "C:\Users\Admin\AppData\Local\Temp\d6b2da2684ea05a4f365a7d18b35416cc143cccbd900d214f7245493cad088c1.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:1848
    • C:\Windows\SysWOW64\net.exe
      net stop nethttpservice
      2⤵
      • Suspicious use of WriteProcessMemory
      PID:768
      • C:\Windows\SysWOW64\net1.exe
        C:\Windows\system32\net1 stop nethttpservice
        3⤵
          PID:1340
      • C:\Windows\SysWOW64\net.exe
        net stop serviceupdater
        2⤵
        • Suspicious use of WriteProcessMemory
        PID:1708
        • C:\Windows\SysWOW64\net1.exe
          C:\Windows\system32\net1 stop serviceupdater
          3⤵
            PID:1404
        • C:\Windows\SysWOW64\installd.exe
          "C:\Windows\system32\installd.exe" nethfdrv
          2⤵
          • Executes dropped EXE
          • Loads dropped DLL
          PID:1248
        • C:\Windows\SysWOW64\nethtsrv.exe
          "C:\Windows\system32\nethtsrv.exe" -nfdi
          2⤵
          • Executes dropped EXE
          • Loads dropped DLL
          PID:932
        • C:\Windows\SysWOW64\netupdsrv.exe
          "C:\Windows\system32\netupdsrv.exe" -nfdi
          2⤵
          • Executes dropped EXE
          PID:532
        • C:\Windows\SysWOW64\net.exe
          net start nethttpservice
          2⤵
          • Suspicious use of WriteProcessMemory
          PID:1736
          • C:\Windows\SysWOW64\net1.exe
            C:\Windows\system32\net1 start nethttpservice
            3⤵
              PID:1552
          • C:\Windows\SysWOW64\net.exe
            net start serviceupdater
            2⤵
            • Suspicious use of WriteProcessMemory
            PID:1560
            • C:\Windows\SysWOW64\net1.exe
              C:\Windows\system32\net1 start serviceupdater
              3⤵
                PID:1184
          • C:\Windows\SysWOW64\nethtsrv.exe
            C:\Windows\SysWOW64\nethtsrv.exe
            1⤵
            • Executes dropped EXE
            • Loads dropped DLL
            • Suspicious use of AdjustPrivilegeToken
            PID:1968
          • C:\Windows\SysWOW64\netupdsrv.exe
            C:\Windows\SysWOW64\netupdsrv.exe
            1⤵
            • Executes dropped EXE
            PID:616

          Network

          MITRE ATT&CK Enterprise v6

          Replay Monitor

          Loading Replay Monitor...

          Downloads

          • C:\Windows\SysWOW64\hfnapi.dll

            Filesize

            106KB

            MD5

            cbb991b9438db7084c449255f3e6f380

            SHA1

            e604622ce5476ea33d2a0117f5fbaf964688bc85

            SHA256

            a0b48a01d8c353a5e73b833d1be98d5de7c91f47caf3698a9daaeff4522943f2

            SHA512

            19eb1b60fc43b9a416825f5ddd8187ebddff1a406bf06cef02db3d8657b5ff5d60a5fe6f6f7ced067011db7feb7af93935855f36b246895e00b5039ec779b0f3

          • C:\Windows\SysWOW64\hfpapi.dll

            Filesize

            241KB

            MD5

            d9d999035ad451127158be32b4e63d1c

            SHA1

            c4dfe9755c2d6a27a9cc56303d975f25dfab4c3c

            SHA256

            af281957efbd4e422dfa4ca9c74bf83628331770766f72de78009dcbd1f69980

            SHA512

            121f852ef0cc465119e3e22700078ed7d261d813d45e94497080e009f52fcc3fd959a199cabec2906cf5b80c43a30bedd5efbcbf6262093792bbef2dbb0e71ac

          • C:\Windows\SysWOW64\installd.exe

            Filesize

            108KB

            MD5

            4bc821c0784ddee43241273a7c1fc561

            SHA1

            a9987416f6eba18ff935f909e9121c1fabd6ebcf

            SHA256

            c7df384e3ee20ee963421a9a80d6206f6c426f041a1905718277bca73239e587

            SHA512

            b49c1551667cf39546db66597227f7de331bf64496a9a173f555cc442c817756159e732b6d779a5879458d85adea87a68cd8a89a15a6856d5cda0a6678807d8b

          • C:\Windows\SysWOW64\nethtsrv.exe

            Filesize

            176KB

            MD5

            0da67a4c7ee03191d81b70943a512e8e

            SHA1

            72c24cfc5dca1782cff8b6c65213a186176cbdd6

            SHA256

            ef72f4309a95053a92105c3e6e8aaccd1ea74c227be6519ee215459e9a854a5e

            SHA512

            9ff0441efb65b72a8bb8912d40bea021fc5d4ebef14573a350b03cc6fc924a7b30d193609ace2bf0ce26f9d8f0acbc636dd6161a642233a557e199edc822883c

          • C:\Windows\SysWOW64\nethtsrv.exe

            Filesize

            176KB

            MD5

            0da67a4c7ee03191d81b70943a512e8e

            SHA1

            72c24cfc5dca1782cff8b6c65213a186176cbdd6

            SHA256

            ef72f4309a95053a92105c3e6e8aaccd1ea74c227be6519ee215459e9a854a5e

            SHA512

            9ff0441efb65b72a8bb8912d40bea021fc5d4ebef14573a350b03cc6fc924a7b30d193609ace2bf0ce26f9d8f0acbc636dd6161a642233a557e199edc822883c

          • C:\Windows\SysWOW64\netupdsrv.exe

            Filesize

            158KB

            MD5

            99085d5be73b34556fc13d8e0159129f

            SHA1

            de6aaad2bac3d0543485130e3456aa04da4bdcd9

            SHA256

            1fb1fb220ac31f5be1b87c817845e9c436bb387df2d7be29e208e19cf6698885

            SHA512

            5301ea60f8f9d7fe800f3346bdd60c62922cdf7473d2be493c7c3c8dfd160beadcfea3444c0afa02c6ffbf34f3ab27e6ccf7709e4e14aed60d12140c157e14d4

          • C:\Windows\SysWOW64\netupdsrv.exe

            Filesize

            158KB

            MD5

            99085d5be73b34556fc13d8e0159129f

            SHA1

            de6aaad2bac3d0543485130e3456aa04da4bdcd9

            SHA256

            1fb1fb220ac31f5be1b87c817845e9c436bb387df2d7be29e208e19cf6698885

            SHA512

            5301ea60f8f9d7fe800f3346bdd60c62922cdf7473d2be493c7c3c8dfd160beadcfea3444c0afa02c6ffbf34f3ab27e6ccf7709e4e14aed60d12140c157e14d4

          • \Users\Admin\AppData\Local\Temp\nsiF22E.tmp\System.dll

            Filesize

            11KB

            MD5

            c17103ae9072a06da581dec998343fc1

            SHA1

            b72148c6bdfaada8b8c3f950e610ee7cf1da1f8d

            SHA256

            dc58d8ad81cacb0c1ed72e33bff8f23ea40b5252b5bb55d393a0903e6819ae2f

            SHA512

            d32a71aaef18e993f28096d536e41c4d016850721b31171513ce28bbd805a54fd290b7c3e9d935f72e676a1acfb4f0dcc89d95040a0dd29f2b6975855c18986f

          • \Users\Admin\AppData\Local\Temp\nsiF22E.tmp\nsExec.dll

            Filesize

            6KB

            MD5

            acc2b699edfea5bf5aae45aba3a41e96

            SHA1

            d2accf4d494e43ceb2cff69abe4dd17147d29cc2

            SHA256

            168a974eaa3f588d759db3f47c1a9fdc3494ba1fa1a73a84e5e3b2a4d58abd7e

            SHA512

            e29ea10ada98c71a18273b04f44f385b120d4e8473e441ce5748cfa44a23648814f2656f429b85440157988c88de776c6ac008dc38bf09cbb746c230a46c69fe

          • \Users\Admin\AppData\Local\Temp\nsiF22E.tmp\nsExec.dll

            Filesize

            6KB

            MD5

            acc2b699edfea5bf5aae45aba3a41e96

            SHA1

            d2accf4d494e43ceb2cff69abe4dd17147d29cc2

            SHA256

            168a974eaa3f588d759db3f47c1a9fdc3494ba1fa1a73a84e5e3b2a4d58abd7e

            SHA512

            e29ea10ada98c71a18273b04f44f385b120d4e8473e441ce5748cfa44a23648814f2656f429b85440157988c88de776c6ac008dc38bf09cbb746c230a46c69fe

          • \Users\Admin\AppData\Local\Temp\nsiF22E.tmp\nsExec.dll

            Filesize

            6KB

            MD5

            acc2b699edfea5bf5aae45aba3a41e96

            SHA1

            d2accf4d494e43ceb2cff69abe4dd17147d29cc2

            SHA256

            168a974eaa3f588d759db3f47c1a9fdc3494ba1fa1a73a84e5e3b2a4d58abd7e

            SHA512

            e29ea10ada98c71a18273b04f44f385b120d4e8473e441ce5748cfa44a23648814f2656f429b85440157988c88de776c6ac008dc38bf09cbb746c230a46c69fe

          • \Users\Admin\AppData\Local\Temp\nsiF22E.tmp\nsExec.dll

            Filesize

            6KB

            MD5

            acc2b699edfea5bf5aae45aba3a41e96

            SHA1

            d2accf4d494e43ceb2cff69abe4dd17147d29cc2

            SHA256

            168a974eaa3f588d759db3f47c1a9fdc3494ba1fa1a73a84e5e3b2a4d58abd7e

            SHA512

            e29ea10ada98c71a18273b04f44f385b120d4e8473e441ce5748cfa44a23648814f2656f429b85440157988c88de776c6ac008dc38bf09cbb746c230a46c69fe

          • \Windows\SysWOW64\hfnapi.dll

            Filesize

            106KB

            MD5

            cbb991b9438db7084c449255f3e6f380

            SHA1

            e604622ce5476ea33d2a0117f5fbaf964688bc85

            SHA256

            a0b48a01d8c353a5e73b833d1be98d5de7c91f47caf3698a9daaeff4522943f2

            SHA512

            19eb1b60fc43b9a416825f5ddd8187ebddff1a406bf06cef02db3d8657b5ff5d60a5fe6f6f7ced067011db7feb7af93935855f36b246895e00b5039ec779b0f3

          • \Windows\SysWOW64\hfnapi.dll

            Filesize

            106KB

            MD5

            cbb991b9438db7084c449255f3e6f380

            SHA1

            e604622ce5476ea33d2a0117f5fbaf964688bc85

            SHA256

            a0b48a01d8c353a5e73b833d1be98d5de7c91f47caf3698a9daaeff4522943f2

            SHA512

            19eb1b60fc43b9a416825f5ddd8187ebddff1a406bf06cef02db3d8657b5ff5d60a5fe6f6f7ced067011db7feb7af93935855f36b246895e00b5039ec779b0f3

          • \Windows\SysWOW64\hfnapi.dll

            Filesize

            106KB

            MD5

            cbb991b9438db7084c449255f3e6f380

            SHA1

            e604622ce5476ea33d2a0117f5fbaf964688bc85

            SHA256

            a0b48a01d8c353a5e73b833d1be98d5de7c91f47caf3698a9daaeff4522943f2

            SHA512

            19eb1b60fc43b9a416825f5ddd8187ebddff1a406bf06cef02db3d8657b5ff5d60a5fe6f6f7ced067011db7feb7af93935855f36b246895e00b5039ec779b0f3

          • \Windows\SysWOW64\hfpapi.dll

            Filesize

            241KB

            MD5

            d9d999035ad451127158be32b4e63d1c

            SHA1

            c4dfe9755c2d6a27a9cc56303d975f25dfab4c3c

            SHA256

            af281957efbd4e422dfa4ca9c74bf83628331770766f72de78009dcbd1f69980

            SHA512

            121f852ef0cc465119e3e22700078ed7d261d813d45e94497080e009f52fcc3fd959a199cabec2906cf5b80c43a30bedd5efbcbf6262093792bbef2dbb0e71ac

          • \Windows\SysWOW64\hfpapi.dll

            Filesize

            241KB

            MD5

            d9d999035ad451127158be32b4e63d1c

            SHA1

            c4dfe9755c2d6a27a9cc56303d975f25dfab4c3c

            SHA256

            af281957efbd4e422dfa4ca9c74bf83628331770766f72de78009dcbd1f69980

            SHA512

            121f852ef0cc465119e3e22700078ed7d261d813d45e94497080e009f52fcc3fd959a199cabec2906cf5b80c43a30bedd5efbcbf6262093792bbef2dbb0e71ac

          • \Windows\SysWOW64\installd.exe

            Filesize

            108KB

            MD5

            4bc821c0784ddee43241273a7c1fc561

            SHA1

            a9987416f6eba18ff935f909e9121c1fabd6ebcf

            SHA256

            c7df384e3ee20ee963421a9a80d6206f6c426f041a1905718277bca73239e587

            SHA512

            b49c1551667cf39546db66597227f7de331bf64496a9a173f555cc442c817756159e732b6d779a5879458d85adea87a68cd8a89a15a6856d5cda0a6678807d8b

          • \Windows\SysWOW64\nethtsrv.exe

            Filesize

            176KB

            MD5

            0da67a4c7ee03191d81b70943a512e8e

            SHA1

            72c24cfc5dca1782cff8b6c65213a186176cbdd6

            SHA256

            ef72f4309a95053a92105c3e6e8aaccd1ea74c227be6519ee215459e9a854a5e

            SHA512

            9ff0441efb65b72a8bb8912d40bea021fc5d4ebef14573a350b03cc6fc924a7b30d193609ace2bf0ce26f9d8f0acbc636dd6161a642233a557e199edc822883c

          • \Windows\SysWOW64\netupdsrv.exe

            Filesize

            158KB

            MD5

            99085d5be73b34556fc13d8e0159129f

            SHA1

            de6aaad2bac3d0543485130e3456aa04da4bdcd9

            SHA256

            1fb1fb220ac31f5be1b87c817845e9c436bb387df2d7be29e208e19cf6698885

            SHA512

            5301ea60f8f9d7fe800f3346bdd60c62922cdf7473d2be493c7c3c8dfd160beadcfea3444c0afa02c6ffbf34f3ab27e6ccf7709e4e14aed60d12140c157e14d4

          • memory/532-77-0x0000000000000000-mapping.dmp

          • memory/768-58-0x0000000000000000-mapping.dmp

          • memory/932-71-0x0000000000000000-mapping.dmp

          • memory/1184-88-0x0000000000000000-mapping.dmp

          • memory/1248-64-0x0000000000000000-mapping.dmp

          • memory/1340-59-0x0000000000000000-mapping.dmp

          • memory/1404-62-0x0000000000000000-mapping.dmp

          • memory/1552-82-0x0000000000000000-mapping.dmp

          • memory/1560-87-0x0000000000000000-mapping.dmp

          • memory/1708-61-0x0000000000000000-mapping.dmp

          • memory/1736-81-0x0000000000000000-mapping.dmp

          • memory/1848-54-0x0000000076091000-0x0000000076093000-memory.dmp

            Filesize

            8KB

          • memory/1848-69-0x0000000000360000-0x00000000007BE000-memory.dmp

            Filesize

            4.4MB

          • memory/1848-57-0x0000000000360000-0x00000000007BE000-memory.dmp

            Filesize

            4.4MB

          • memory/1848-91-0x0000000000360000-0x00000000007BE000-memory.dmp

            Filesize

            4.4MB