Analysis

  • max time kernel
    48s
  • max time network
    35s
  • 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

    966866f2c74b63b870d68d39698aab298bd681526dcd951cfac8f2e5be4f9fc3.exe

  • Size

    602KB

  • MD5

    4a04fa1956b58da093041bf9769cf9fa

  • SHA1

    2a8f0e1a44123c7a0fa683ee0fb3cb3d0fcbe0de

  • SHA256

    966866f2c74b63b870d68d39698aab298bd681526dcd951cfac8f2e5be4f9fc3

  • SHA512

    3c790247a8d45a9d9ba7bfbd4f3a3ea14770b24ae8a658ff3a85cca7057ea0406bfe0915079aacc9e40cd56c4b0154fa520815d21c9c9618fe16d27efe07d7cd

  • SSDEEP

    12288:2Iny5DYTcIDHLrhQJXcZLWWp01/E5lwTG4e+QCmEGGuknK:4UTcYCJXsLWWp+s5lwTDeZE2X

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\966866f2c74b63b870d68d39698aab298bd681526dcd951cfac8f2e5be4f9fc3.exe
    "C:\Users\Admin\AppData\Local\Temp\966866f2c74b63b870d68d39698aab298bd681526dcd951cfac8f2e5be4f9fc3.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:2016
    • C:\Windows\SysWOW64\net.exe
      net stop nethttpservice
      2⤵
      • Suspicious use of WriteProcessMemory
      PID:980
      • C:\Windows\SysWOW64\net1.exe
        C:\Windows\system32\net1 stop nethttpservice
        3⤵
          PID:576
      • C:\Windows\SysWOW64\net.exe
        net stop serviceupdater
        2⤵
        • Suspicious use of WriteProcessMemory
        PID:1508
        • C:\Windows\SysWOW64\net1.exe
          C:\Windows\system32\net1 stop serviceupdater
          3⤵
            PID:1940
        • C:\Windows\SysWOW64\installd.exe
          "C:\Windows\system32\installd.exe" nethfdrv
          2⤵
          • Executes dropped EXE
          • Loads dropped DLL
          PID:904
        • C:\Windows\SysWOW64\nethtsrv.exe
          "C:\Windows\system32\nethtsrv.exe" -nfdi
          2⤵
          • Executes dropped EXE
          • Loads dropped DLL
          PID:1952
        • C:\Windows\SysWOW64\netupdsrv.exe
          "C:\Windows\system32\netupdsrv.exe" -nfdi
          2⤵
          • Executes dropped EXE
          PID:936
        • C:\Windows\SysWOW64\net.exe
          net start nethttpservice
          2⤵
          • Suspicious use of WriteProcessMemory
          PID:280
          • C:\Windows\SysWOW64\net1.exe
            C:\Windows\system32\net1 start nethttpservice
            3⤵
              PID:1524
          • C:\Windows\SysWOW64\net.exe
            net start serviceupdater
            2⤵
            • Suspicious use of WriteProcessMemory
            PID:848
            • C:\Windows\SysWOW64\net1.exe
              C:\Windows\system32\net1 start serviceupdater
              3⤵
                PID:1256
          • C:\Windows\SysWOW64\nethtsrv.exe
            C:\Windows\SysWOW64\nethtsrv.exe
            1⤵
            • Executes dropped EXE
            • Loads dropped DLL
            • Suspicious use of AdjustPrivilegeToken
            PID:108
          • C:\Windows\SysWOW64\netupdsrv.exe
            C:\Windows\SysWOW64\netupdsrv.exe
            1⤵
            • Executes dropped EXE
            PID:864

          Network

          MITRE ATT&CK Enterprise v6

          Replay Monitor

          Loading Replay Monitor...

          Downloads

          • C:\Windows\SysWOW64\hfnapi.dll

            Filesize

            106KB

            MD5

            3309b66404fc30c47470abc690e7af6c

            SHA1

            73b349dd25a0aafaf5a9fe5f2c44e494ab45e7f7

            SHA256

            a54cf81417025a2202c1750c250f1155d1db8f8959cc4cfd55bbbf65c88ed2fb

            SHA512

            7fa230fc0a0af1f37062d99ae751648105d584a70d28bda94fb9e106a3ad6928d6aeacd4a396e0261020400c798860a4524d1a828ad5ccce37e4d7eb07be6da6

          • C:\Windows\SysWOW64\hfpapi.dll

            Filesize

            244KB

            MD5

            bda4dc21725822f65180edc197608c27

            SHA1

            4f328255dea3c7f684ebc7d40c290db80ebd8dbf

            SHA256

            090cc4f13c071c113bcb676dc32a64a34f2764897b3fa6a655aab95a535cdd2c

            SHA512

            2d0ce69a2c0f80548b5d7f61466abbf4d52605b925f4c21e2f5ee7d1fca57a15328797662868bdec8a11c4bdc045e30d0b89dc29ef0cdfefbb68539d338af7a5

          • C:\Windows\SysWOW64\installd.exe

            Filesize

            108KB

            MD5

            291a361c1fa13ffb742406a1ec3498cf

            SHA1

            2a6ff26951d925431461205afac854afb94f36e8

            SHA256

            71f292068910fc3bc7fd4a254c99804f96de1264209a93f4aab21bce47dd7694

            SHA512

            2e7d9474246219e261e569214e8a209413e01c061668a1e29fb98124fb6259185fa115127843ad0e154e24f1f61cdac212341f7a03dc9a1c9fa0fe14d1114dbb

          • C:\Windows\SysWOW64\nethtsrv.exe

            Filesize

            176KB

            MD5

            7fce3f923d366d3c910e547c1ff76ac8

            SHA1

            8388da585575263bf91a061a44ced2f65fc5e2ea

            SHA256

            2bd0083ad4b4c7e94d6968ab7d97247307a29f761adb86d0e7e80a66620f3cd7

            SHA512

            dba463a75b990ddb85b8ea56caecac7ecbf102a88e2be233f34dc9486a347a666919525a5280b4e11fc4b08567476c9bdccd72ba1661f96281859e910ccf0177

          • C:\Windows\SysWOW64\nethtsrv.exe

            Filesize

            176KB

            MD5

            7fce3f923d366d3c910e547c1ff76ac8

            SHA1

            8388da585575263bf91a061a44ced2f65fc5e2ea

            SHA256

            2bd0083ad4b4c7e94d6968ab7d97247307a29f761adb86d0e7e80a66620f3cd7

            SHA512

            dba463a75b990ddb85b8ea56caecac7ecbf102a88e2be233f34dc9486a347a666919525a5280b4e11fc4b08567476c9bdccd72ba1661f96281859e910ccf0177

          • C:\Windows\SysWOW64\netupdsrv.exe

            Filesize

            158KB

            MD5

            62c00539abcf6dbef54ec8ec5dd513c0

            SHA1

            db684f40b9e726a73e773e26fa057d912f63e1a2

            SHA256

            ced576c98c18ab5ea009cefed11acc047a92da785aef5422f7f3c35d2f167c7b

            SHA512

            a193ae5e8309ea32023a1487b65e842c15699efd2a50c4bac853dcd28c479ea0b7093f377404b8a7eb36ee4c142353182f926ee03d9d521dd644fd1dad650e6d

          • C:\Windows\SysWOW64\netupdsrv.exe

            Filesize

            158KB

            MD5

            62c00539abcf6dbef54ec8ec5dd513c0

            SHA1

            db684f40b9e726a73e773e26fa057d912f63e1a2

            SHA256

            ced576c98c18ab5ea009cefed11acc047a92da785aef5422f7f3c35d2f167c7b

            SHA512

            a193ae5e8309ea32023a1487b65e842c15699efd2a50c4bac853dcd28c479ea0b7093f377404b8a7eb36ee4c142353182f926ee03d9d521dd644fd1dad650e6d

          • \Users\Admin\AppData\Local\Temp\nso9FAC.tmp\System.dll

            Filesize

            11KB

            MD5

            c17103ae9072a06da581dec998343fc1

            SHA1

            b72148c6bdfaada8b8c3f950e610ee7cf1da1f8d

            SHA256

            dc58d8ad81cacb0c1ed72e33bff8f23ea40b5252b5bb55d393a0903e6819ae2f

            SHA512

            d32a71aaef18e993f28096d536e41c4d016850721b31171513ce28bbd805a54fd290b7c3e9d935f72e676a1acfb4f0dcc89d95040a0dd29f2b6975855c18986f

          • \Users\Admin\AppData\Local\Temp\nso9FAC.tmp\nsExec.dll

            Filesize

            6KB

            MD5

            acc2b699edfea5bf5aae45aba3a41e96

            SHA1

            d2accf4d494e43ceb2cff69abe4dd17147d29cc2

            SHA256

            168a974eaa3f588d759db3f47c1a9fdc3494ba1fa1a73a84e5e3b2a4d58abd7e

            SHA512

            e29ea10ada98c71a18273b04f44f385b120d4e8473e441ce5748cfa44a23648814f2656f429b85440157988c88de776c6ac008dc38bf09cbb746c230a46c69fe

          • \Users\Admin\AppData\Local\Temp\nso9FAC.tmp\nsExec.dll

            Filesize

            6KB

            MD5

            acc2b699edfea5bf5aae45aba3a41e96

            SHA1

            d2accf4d494e43ceb2cff69abe4dd17147d29cc2

            SHA256

            168a974eaa3f588d759db3f47c1a9fdc3494ba1fa1a73a84e5e3b2a4d58abd7e

            SHA512

            e29ea10ada98c71a18273b04f44f385b120d4e8473e441ce5748cfa44a23648814f2656f429b85440157988c88de776c6ac008dc38bf09cbb746c230a46c69fe

          • \Users\Admin\AppData\Local\Temp\nso9FAC.tmp\nsExec.dll

            Filesize

            6KB

            MD5

            acc2b699edfea5bf5aae45aba3a41e96

            SHA1

            d2accf4d494e43ceb2cff69abe4dd17147d29cc2

            SHA256

            168a974eaa3f588d759db3f47c1a9fdc3494ba1fa1a73a84e5e3b2a4d58abd7e

            SHA512

            e29ea10ada98c71a18273b04f44f385b120d4e8473e441ce5748cfa44a23648814f2656f429b85440157988c88de776c6ac008dc38bf09cbb746c230a46c69fe

          • \Users\Admin\AppData\Local\Temp\nso9FAC.tmp\nsExec.dll

            Filesize

            6KB

            MD5

            acc2b699edfea5bf5aae45aba3a41e96

            SHA1

            d2accf4d494e43ceb2cff69abe4dd17147d29cc2

            SHA256

            168a974eaa3f588d759db3f47c1a9fdc3494ba1fa1a73a84e5e3b2a4d58abd7e

            SHA512

            e29ea10ada98c71a18273b04f44f385b120d4e8473e441ce5748cfa44a23648814f2656f429b85440157988c88de776c6ac008dc38bf09cbb746c230a46c69fe

          • \Windows\SysWOW64\hfnapi.dll

            Filesize

            106KB

            MD5

            3309b66404fc30c47470abc690e7af6c

            SHA1

            73b349dd25a0aafaf5a9fe5f2c44e494ab45e7f7

            SHA256

            a54cf81417025a2202c1750c250f1155d1db8f8959cc4cfd55bbbf65c88ed2fb

            SHA512

            7fa230fc0a0af1f37062d99ae751648105d584a70d28bda94fb9e106a3ad6928d6aeacd4a396e0261020400c798860a4524d1a828ad5ccce37e4d7eb07be6da6

          • \Windows\SysWOW64\hfnapi.dll

            Filesize

            106KB

            MD5

            3309b66404fc30c47470abc690e7af6c

            SHA1

            73b349dd25a0aafaf5a9fe5f2c44e494ab45e7f7

            SHA256

            a54cf81417025a2202c1750c250f1155d1db8f8959cc4cfd55bbbf65c88ed2fb

            SHA512

            7fa230fc0a0af1f37062d99ae751648105d584a70d28bda94fb9e106a3ad6928d6aeacd4a396e0261020400c798860a4524d1a828ad5ccce37e4d7eb07be6da6

          • \Windows\SysWOW64\hfnapi.dll

            Filesize

            106KB

            MD5

            3309b66404fc30c47470abc690e7af6c

            SHA1

            73b349dd25a0aafaf5a9fe5f2c44e494ab45e7f7

            SHA256

            a54cf81417025a2202c1750c250f1155d1db8f8959cc4cfd55bbbf65c88ed2fb

            SHA512

            7fa230fc0a0af1f37062d99ae751648105d584a70d28bda94fb9e106a3ad6928d6aeacd4a396e0261020400c798860a4524d1a828ad5ccce37e4d7eb07be6da6

          • \Windows\SysWOW64\hfpapi.dll

            Filesize

            244KB

            MD5

            bda4dc21725822f65180edc197608c27

            SHA1

            4f328255dea3c7f684ebc7d40c290db80ebd8dbf

            SHA256

            090cc4f13c071c113bcb676dc32a64a34f2764897b3fa6a655aab95a535cdd2c

            SHA512

            2d0ce69a2c0f80548b5d7f61466abbf4d52605b925f4c21e2f5ee7d1fca57a15328797662868bdec8a11c4bdc045e30d0b89dc29ef0cdfefbb68539d338af7a5

          • \Windows\SysWOW64\hfpapi.dll

            Filesize

            244KB

            MD5

            bda4dc21725822f65180edc197608c27

            SHA1

            4f328255dea3c7f684ebc7d40c290db80ebd8dbf

            SHA256

            090cc4f13c071c113bcb676dc32a64a34f2764897b3fa6a655aab95a535cdd2c

            SHA512

            2d0ce69a2c0f80548b5d7f61466abbf4d52605b925f4c21e2f5ee7d1fca57a15328797662868bdec8a11c4bdc045e30d0b89dc29ef0cdfefbb68539d338af7a5

          • \Windows\SysWOW64\installd.exe

            Filesize

            108KB

            MD5

            291a361c1fa13ffb742406a1ec3498cf

            SHA1

            2a6ff26951d925431461205afac854afb94f36e8

            SHA256

            71f292068910fc3bc7fd4a254c99804f96de1264209a93f4aab21bce47dd7694

            SHA512

            2e7d9474246219e261e569214e8a209413e01c061668a1e29fb98124fb6259185fa115127843ad0e154e24f1f61cdac212341f7a03dc9a1c9fa0fe14d1114dbb

          • \Windows\SysWOW64\nethtsrv.exe

            Filesize

            176KB

            MD5

            7fce3f923d366d3c910e547c1ff76ac8

            SHA1

            8388da585575263bf91a061a44ced2f65fc5e2ea

            SHA256

            2bd0083ad4b4c7e94d6968ab7d97247307a29f761adb86d0e7e80a66620f3cd7

            SHA512

            dba463a75b990ddb85b8ea56caecac7ecbf102a88e2be233f34dc9486a347a666919525a5280b4e11fc4b08567476c9bdccd72ba1661f96281859e910ccf0177

          • \Windows\SysWOW64\netupdsrv.exe

            Filesize

            158KB

            MD5

            62c00539abcf6dbef54ec8ec5dd513c0

            SHA1

            db684f40b9e726a73e773e26fa057d912f63e1a2

            SHA256

            ced576c98c18ab5ea009cefed11acc047a92da785aef5422f7f3c35d2f167c7b

            SHA512

            a193ae5e8309ea32023a1487b65e842c15699efd2a50c4bac853dcd28c479ea0b7093f377404b8a7eb36ee4c142353182f926ee03d9d521dd644fd1dad650e6d

          • memory/280-81-0x0000000000000000-mapping.dmp

          • memory/576-59-0x0000000000000000-mapping.dmp

          • memory/848-87-0x0000000000000000-mapping.dmp

          • memory/904-64-0x0000000000000000-mapping.dmp

          • memory/936-77-0x0000000000000000-mapping.dmp

          • memory/980-57-0x0000000000000000-mapping.dmp

          • memory/1256-88-0x0000000000000000-mapping.dmp

          • memory/1508-61-0x0000000000000000-mapping.dmp

          • memory/1524-82-0x0000000000000000-mapping.dmp

          • memory/1940-62-0x0000000000000000-mapping.dmp

          • memory/1952-71-0x0000000000000000-mapping.dmp

          • memory/2016-69-0x0000000000360000-0x00000000007BE000-memory.dmp

            Filesize

            4.4MB

          • memory/2016-54-0x0000000075891000-0x0000000075893000-memory.dmp

            Filesize

            8KB

          • memory/2016-58-0x0000000000360000-0x00000000007BE000-memory.dmp

            Filesize

            4.4MB

          • memory/2016-91-0x0000000000360000-0x00000000007BE000-memory.dmp

            Filesize

            4.4MB