Analysis

  • max time kernel
    28s
  • max time network
    47s
  • platform
    windows7_x64
  • resource
    win7-20220812-en
  • resource tags

    arch:x64arch:x86image:win7-20220812-enlocale:en-usos:windows7-x64system
  • submitted
    23-11-2022 10:52

General

  • Target

    bad017ca25e291169c5d11ad5643eba075ef30720b4b000b56b82187ff8dc55b.exe

  • Size

    445KB

  • MD5

    571f8a1975b2fd893a4250e9bb569cbc

  • SHA1

    8b5ee41a68c23fa4ca047fae20e38f394bf76af7

  • SHA256

    bad017ca25e291169c5d11ad5643eba075ef30720b4b000b56b82187ff8dc55b

  • SHA512

    411d1709cb13af6f317feba4ecea009e25641af2fd40a231a5bb8bb68d8c2dbd55129b66d02eea3db7e5333fb1a2034748d64b21e58d1e8ac4260563b83904a9

  • SSDEEP

    12288:0AkCxDIyBTW5kSaTAYN2ro4NJTh0ycFd2bH/nAbvK:0A9ZkkSaf0rD7Th2FIbfnkvK

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\bad017ca25e291169c5d11ad5643eba075ef30720b4b000b56b82187ff8dc55b.exe
    "C:\Users\Admin\AppData\Local\Temp\bad017ca25e291169c5d11ad5643eba075ef30720b4b000b56b82187ff8dc55b.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:668
    • C:\Windows\SysWOW64\net.exe
      net stop nethttpservice
      2⤵
      • Suspicious use of WriteProcessMemory
      PID:940
      • C:\Windows\SysWOW64\net1.exe
        C:\Windows\system32\net1 stop nethttpservice
        3⤵
          PID:1076
      • C:\Windows\SysWOW64\net.exe
        net stop serviceupdater
        2⤵
        • Suspicious use of WriteProcessMemory
        PID:1080
        • C:\Windows\SysWOW64\net1.exe
          C:\Windows\system32\net1 stop serviceupdater
          3⤵
            PID:816
        • C:\Windows\SysWOW64\installd.exe
          "C:\Windows\system32\installd.exe" nethfdrv
          2⤵
          • Executes dropped EXE
          • Loads dropped DLL
          PID:1888
        • C:\Windows\SysWOW64\nethtsrv.exe
          "C:\Windows\system32\nethtsrv.exe" -nfdi
          2⤵
          • Executes dropped EXE
          • Loads dropped DLL
          PID:1012
        • C:\Windows\SysWOW64\netupdsrv.exe
          "C:\Windows\system32\netupdsrv.exe" -nfdi
          2⤵
          • Executes dropped EXE
          PID:1516
        • C:\Windows\SysWOW64\net.exe
          net start nethttpservice
          2⤵
          • Suspicious use of WriteProcessMemory
          PID:1968
          • C:\Windows\SysWOW64\net1.exe
            C:\Windows\system32\net1 start nethttpservice
            3⤵
              PID:1988
          • C:\Windows\SysWOW64\net.exe
            net start serviceupdater
            2⤵
            • Suspicious use of WriteProcessMemory
            PID:1404
            • C:\Windows\SysWOW64\net1.exe
              C:\Windows\system32\net1 start serviceupdater
              3⤵
                PID:1152
          • C:\Windows\SysWOW64\nethtsrv.exe
            C:\Windows\SysWOW64\nethtsrv.exe
            1⤵
            • Executes dropped EXE
            • Loads dropped DLL
            • Suspicious use of AdjustPrivilegeToken
            PID:1124
          • C:\Windows\SysWOW64\netupdsrv.exe
            C:\Windows\SysWOW64\netupdsrv.exe
            1⤵
            • Executes dropped EXE
            PID:804

          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

            2310b93a4a46e58f99309189290da42b

            SHA1

            8f5f748d2cd10e5329928971b73f70f647064732

            SHA256

            c77fd4e1078f3bab3d55455e0b248f9c20c618b66420004fab723bc6dbeb0ca4

            SHA512

            87eaedda15df2e91dd7a74c299b2a1efb0e49d21a0a515d8891913091ec1bb66b8b6f74027c1f5e2d7346fbfa394304fcd96421c3e9c124517b404d193b33aed

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

            241KB

            MD5

            e60472766dc01bd0099a4e00a2b1797a

            SHA1

            318b2be26bf4fd2af7108e701dfde2023ceb17e5

            SHA256

            f9a29b82cb2215a4387b5057cf0fa0001949971487ae5f22a336a5861e3bfb9e

            SHA512

            f7750deb46b63cbe0ec38e1f46bed9f0e5e1d54f54f4dae074b5792fe47957213e61f6fb3feb922d4c8a9087ff050726cabc5eb51d48fa9891ac6e13d1434ff2

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

            108KB

            MD5

            36875ad4ecf27af97dd29396837a51e2

            SHA1

            040563c8e286cefd6b4a3cd51ca6b3317f3029a5

            SHA256

            cc9b2360184f1563f751f0b9ac24d1d70d45fcf52c498180d78d433f6ac49fce

            SHA512

            d77a485ca77557f7748a620612fd66d6cb2419bfacd6183612a3e3d6c27c25ea46a7846f075ae86d8feae14480209e4f1b615fcf9625324b84f7fceb16b5c772

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

            176KB

            MD5

            063df976d9453cf51054cd545ff20212

            SHA1

            eb286c9ab170387923f77a76209eff708cbd7c9b

            SHA256

            67181e41f16e7eab87c24f4b7cb9c7f668a27bb6602ae89f60904016ea7ce454

            SHA512

            44aa18f308c22b5e8bff32c370eb55eac905b14cfa43394b77fae37bbf09c5a560e6bf8bc40faa3d5b5a111b25b634046ba9f440c043cf2f81c3c51b405bf460

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

            176KB

            MD5

            063df976d9453cf51054cd545ff20212

            SHA1

            eb286c9ab170387923f77a76209eff708cbd7c9b

            SHA256

            67181e41f16e7eab87c24f4b7cb9c7f668a27bb6602ae89f60904016ea7ce454

            SHA512

            44aa18f308c22b5e8bff32c370eb55eac905b14cfa43394b77fae37bbf09c5a560e6bf8bc40faa3d5b5a111b25b634046ba9f440c043cf2f81c3c51b405bf460

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

            159KB

            MD5

            adfcac1b909fd32ef163fbc84619d727

            SHA1

            24cfe7df0ebc57544235a5e35698267e1856cbed

            SHA256

            83aa78e07061673a27b23b11fd77efd276f7e9a3a0b1b5304c2d714b30264da3

            SHA512

            f4e525ffc1df4e624344c13d1abdad7a4fea710b87879524ead60b97a4a095ef9969abe934726b33f3be2c0c94032bc73e93008c5f3063a5652822574c3afadd

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

            159KB

            MD5

            adfcac1b909fd32ef163fbc84619d727

            SHA1

            24cfe7df0ebc57544235a5e35698267e1856cbed

            SHA256

            83aa78e07061673a27b23b11fd77efd276f7e9a3a0b1b5304c2d714b30264da3

            SHA512

            f4e525ffc1df4e624344c13d1abdad7a4fea710b87879524ead60b97a4a095ef9969abe934726b33f3be2c0c94032bc73e93008c5f3063a5652822574c3afadd

          • \Users\Admin\AppData\Local\Temp\nst3269.tmp\System.dll
            Filesize

            11KB

            MD5

            c17103ae9072a06da581dec998343fc1

            SHA1

            b72148c6bdfaada8b8c3f950e610ee7cf1da1f8d

            SHA256

            dc58d8ad81cacb0c1ed72e33bff8f23ea40b5252b5bb55d393a0903e6819ae2f

            SHA512

            d32a71aaef18e993f28096d536e41c4d016850721b31171513ce28bbd805a54fd290b7c3e9d935f72e676a1acfb4f0dcc89d95040a0dd29f2b6975855c18986f

          • \Users\Admin\AppData\Local\Temp\nst3269.tmp\nsExec.dll
            Filesize

            6KB

            MD5

            acc2b699edfea5bf5aae45aba3a41e96

            SHA1

            d2accf4d494e43ceb2cff69abe4dd17147d29cc2

            SHA256

            168a974eaa3f588d759db3f47c1a9fdc3494ba1fa1a73a84e5e3b2a4d58abd7e

            SHA512

            e29ea10ada98c71a18273b04f44f385b120d4e8473e441ce5748cfa44a23648814f2656f429b85440157988c88de776c6ac008dc38bf09cbb746c230a46c69fe

          • \Users\Admin\AppData\Local\Temp\nst3269.tmp\nsExec.dll
            Filesize

            6KB

            MD5

            acc2b699edfea5bf5aae45aba3a41e96

            SHA1

            d2accf4d494e43ceb2cff69abe4dd17147d29cc2

            SHA256

            168a974eaa3f588d759db3f47c1a9fdc3494ba1fa1a73a84e5e3b2a4d58abd7e

            SHA512

            e29ea10ada98c71a18273b04f44f385b120d4e8473e441ce5748cfa44a23648814f2656f429b85440157988c88de776c6ac008dc38bf09cbb746c230a46c69fe

          • \Users\Admin\AppData\Local\Temp\nst3269.tmp\nsExec.dll
            Filesize

            6KB

            MD5

            acc2b699edfea5bf5aae45aba3a41e96

            SHA1

            d2accf4d494e43ceb2cff69abe4dd17147d29cc2

            SHA256

            168a974eaa3f588d759db3f47c1a9fdc3494ba1fa1a73a84e5e3b2a4d58abd7e

            SHA512

            e29ea10ada98c71a18273b04f44f385b120d4e8473e441ce5748cfa44a23648814f2656f429b85440157988c88de776c6ac008dc38bf09cbb746c230a46c69fe

          • \Users\Admin\AppData\Local\Temp\nst3269.tmp\nsExec.dll
            Filesize

            6KB

            MD5

            acc2b699edfea5bf5aae45aba3a41e96

            SHA1

            d2accf4d494e43ceb2cff69abe4dd17147d29cc2

            SHA256

            168a974eaa3f588d759db3f47c1a9fdc3494ba1fa1a73a84e5e3b2a4d58abd7e

            SHA512

            e29ea10ada98c71a18273b04f44f385b120d4e8473e441ce5748cfa44a23648814f2656f429b85440157988c88de776c6ac008dc38bf09cbb746c230a46c69fe

          • \Windows\SysWOW64\hfnapi.dll
            Filesize

            106KB

            MD5

            2310b93a4a46e58f99309189290da42b

            SHA1

            8f5f748d2cd10e5329928971b73f70f647064732

            SHA256

            c77fd4e1078f3bab3d55455e0b248f9c20c618b66420004fab723bc6dbeb0ca4

            SHA512

            87eaedda15df2e91dd7a74c299b2a1efb0e49d21a0a515d8891913091ec1bb66b8b6f74027c1f5e2d7346fbfa394304fcd96421c3e9c124517b404d193b33aed

          • \Windows\SysWOW64\hfnapi.dll
            Filesize

            106KB

            MD5

            2310b93a4a46e58f99309189290da42b

            SHA1

            8f5f748d2cd10e5329928971b73f70f647064732

            SHA256

            c77fd4e1078f3bab3d55455e0b248f9c20c618b66420004fab723bc6dbeb0ca4

            SHA512

            87eaedda15df2e91dd7a74c299b2a1efb0e49d21a0a515d8891913091ec1bb66b8b6f74027c1f5e2d7346fbfa394304fcd96421c3e9c124517b404d193b33aed

          • \Windows\SysWOW64\hfnapi.dll
            Filesize

            106KB

            MD5

            2310b93a4a46e58f99309189290da42b

            SHA1

            8f5f748d2cd10e5329928971b73f70f647064732

            SHA256

            c77fd4e1078f3bab3d55455e0b248f9c20c618b66420004fab723bc6dbeb0ca4

            SHA512

            87eaedda15df2e91dd7a74c299b2a1efb0e49d21a0a515d8891913091ec1bb66b8b6f74027c1f5e2d7346fbfa394304fcd96421c3e9c124517b404d193b33aed

          • \Windows\SysWOW64\hfpapi.dll
            Filesize

            241KB

            MD5

            e60472766dc01bd0099a4e00a2b1797a

            SHA1

            318b2be26bf4fd2af7108e701dfde2023ceb17e5

            SHA256

            f9a29b82cb2215a4387b5057cf0fa0001949971487ae5f22a336a5861e3bfb9e

            SHA512

            f7750deb46b63cbe0ec38e1f46bed9f0e5e1d54f54f4dae074b5792fe47957213e61f6fb3feb922d4c8a9087ff050726cabc5eb51d48fa9891ac6e13d1434ff2

          • \Windows\SysWOW64\hfpapi.dll
            Filesize

            241KB

            MD5

            e60472766dc01bd0099a4e00a2b1797a

            SHA1

            318b2be26bf4fd2af7108e701dfde2023ceb17e5

            SHA256

            f9a29b82cb2215a4387b5057cf0fa0001949971487ae5f22a336a5861e3bfb9e

            SHA512

            f7750deb46b63cbe0ec38e1f46bed9f0e5e1d54f54f4dae074b5792fe47957213e61f6fb3feb922d4c8a9087ff050726cabc5eb51d48fa9891ac6e13d1434ff2

          • \Windows\SysWOW64\installd.exe
            Filesize

            108KB

            MD5

            36875ad4ecf27af97dd29396837a51e2

            SHA1

            040563c8e286cefd6b4a3cd51ca6b3317f3029a5

            SHA256

            cc9b2360184f1563f751f0b9ac24d1d70d45fcf52c498180d78d433f6ac49fce

            SHA512

            d77a485ca77557f7748a620612fd66d6cb2419bfacd6183612a3e3d6c27c25ea46a7846f075ae86d8feae14480209e4f1b615fcf9625324b84f7fceb16b5c772

          • \Windows\SysWOW64\nethtsrv.exe
            Filesize

            176KB

            MD5

            063df976d9453cf51054cd545ff20212

            SHA1

            eb286c9ab170387923f77a76209eff708cbd7c9b

            SHA256

            67181e41f16e7eab87c24f4b7cb9c7f668a27bb6602ae89f60904016ea7ce454

            SHA512

            44aa18f308c22b5e8bff32c370eb55eac905b14cfa43394b77fae37bbf09c5a560e6bf8bc40faa3d5b5a111b25b634046ba9f440c043cf2f81c3c51b405bf460

          • \Windows\SysWOW64\netupdsrv.exe
            Filesize

            159KB

            MD5

            adfcac1b909fd32ef163fbc84619d727

            SHA1

            24cfe7df0ebc57544235a5e35698267e1856cbed

            SHA256

            83aa78e07061673a27b23b11fd77efd276f7e9a3a0b1b5304c2d714b30264da3

            SHA512

            f4e525ffc1df4e624344c13d1abdad7a4fea710b87879524ead60b97a4a095ef9969abe934726b33f3be2c0c94032bc73e93008c5f3063a5652822574c3afadd

          • memory/668-54-0x0000000075981000-0x0000000075983000-memory.dmp
            Filesize

            8KB

          • memory/816-61-0x0000000000000000-mapping.dmp
          • memory/940-57-0x0000000000000000-mapping.dmp
          • memory/1012-69-0x0000000000000000-mapping.dmp
          • memory/1076-58-0x0000000000000000-mapping.dmp
          • memory/1080-60-0x0000000000000000-mapping.dmp
          • memory/1152-86-0x0000000000000000-mapping.dmp
          • memory/1404-85-0x0000000000000000-mapping.dmp
          • memory/1516-75-0x0000000000000000-mapping.dmp
          • memory/1888-63-0x0000000000000000-mapping.dmp
          • memory/1968-79-0x0000000000000000-mapping.dmp
          • memory/1988-80-0x0000000000000000-mapping.dmp