Analysis

  • max time kernel
    48s
  • max time network
    31s
  • platform
    windows7_x64
  • resource
    win7-20221111-en
  • resource tags

    arch:x64arch:x86image:win7-20221111-enlocale:en-usos:windows7-x64system
  • submitted
    23-11-2022 10:06

General

  • Target

    f93c8aaeaec9f8325dd222e30e45e8813a093eb3e85dbbd41f476402c7950d24.exe

  • Size

    603KB

  • MD5

    49f9e1332e05b3fd53e45971d0964031

  • SHA1

    03157785a984ab09dc48ff1254d708ce8b7fbceb

  • SHA256

    f93c8aaeaec9f8325dd222e30e45e8813a093eb3e85dbbd41f476402c7950d24

  • SHA512

    590f0da893ee0a3868f24efc104c4d75d8e737bff8c69cd721ac6908c666e17ac2a9e3391241dd4f05fc00105cabf665774d16d3d679e302b1df473508da54a3

  • SSDEEP

    12288:qIny5DYTH95RJ2AVDkIv4bEa1SnXVbPkrCOahznstzv:sUTH9cUoIQ91mu+dhzev

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\f93c8aaeaec9f8325dd222e30e45e8813a093eb3e85dbbd41f476402c7950d24.exe
    "C:\Users\Admin\AppData\Local\Temp\f93c8aaeaec9f8325dd222e30e45e8813a093eb3e85dbbd41f476402c7950d24.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:1152
    • C:\Windows\SysWOW64\net.exe
      net stop nethttpservice
      2⤵
      • Suspicious use of WriteProcessMemory
      PID:1376
      • C:\Windows\SysWOW64\net1.exe
        C:\Windows\system32\net1 stop nethttpservice
        3⤵
          PID:588
      • C:\Windows\SysWOW64\net.exe
        net stop serviceupdater
        2⤵
        • Suspicious use of WriteProcessMemory
        PID:1068
        • C:\Windows\SysWOW64\net1.exe
          C:\Windows\system32\net1 stop serviceupdater
          3⤵
            PID:1400
        • C:\Windows\SysWOW64\installd.exe
          "C:\Windows\system32\installd.exe" nethfdrv
          2⤵
          • Executes dropped EXE
          • Loads dropped DLL
          PID:1996
        • C:\Windows\SysWOW64\nethtsrv.exe
          "C:\Windows\system32\nethtsrv.exe" -nfdi
          2⤵
          • Executes dropped EXE
          • Loads dropped DLL
          PID:1576
        • C:\Windows\SysWOW64\netupdsrv.exe
          "C:\Windows\system32\netupdsrv.exe" -nfdi
          2⤵
          • Executes dropped EXE
          PID:1200
        • C:\Windows\SysWOW64\net.exe
          net start nethttpservice
          2⤵
          • Suspicious use of WriteProcessMemory
          PID:1956
          • C:\Windows\SysWOW64\net1.exe
            C:\Windows\system32\net1 start nethttpservice
            3⤵
              PID:1208
          • C:\Windows\SysWOW64\net.exe
            net start serviceupdater
            2⤵
            • Suspicious use of WriteProcessMemory
            PID:1588
            • C:\Windows\SysWOW64\net1.exe
              C:\Windows\system32\net1 start serviceupdater
              3⤵
                PID:1764
          • C:\Windows\SysWOW64\nethtsrv.exe
            C:\Windows\SysWOW64\nethtsrv.exe
            1⤵
            • Executes dropped EXE
            • Loads dropped DLL
            • Suspicious use of AdjustPrivilegeToken
            PID:1676
          • C:\Windows\SysWOW64\netupdsrv.exe
            C:\Windows\SysWOW64\netupdsrv.exe
            1⤵
            • Executes dropped EXE
            PID:1268

          Network

          MITRE ATT&CK Enterprise v6

          Replay Monitor

          Loading Replay Monitor...

          Downloads

          • C:\Windows\SysWOW64\hfnapi.dll

            Filesize

            106KB

            MD5

            c4b5152244306a677253a160482c48d3

            SHA1

            020228df2cdd743a7a5dc96803460f33ff57954d

            SHA256

            90862ddb5e899b018ec22612d837ef346ac324262e0118033106ca5e770536a0

            SHA512

            9318d9c393f8e5d0ca9aeb6e873eddf048cd5b860dfbcc97f93ff9d06bbd884d48271c61e31763b7047b37069839ea74db799d0e0fa8b4a82bb209698f7a24a6

          • C:\Windows\SysWOW64\hfpapi.dll

            Filesize

            244KB

            MD5

            2dfa6ba8f077f2ad016d27e46d2aa7e0

            SHA1

            a9334f23f18877f4c9c5b78c9c71a8919273d5c1

            SHA256

            c74dcd879d182f7e3838bfaf6657c69149b7dab36c9abef7824c8380f18a6f90

            SHA512

            712218e2259a0529fcea74cd1d392751dd1e41670f4f77d8e05b202206db29ab8ce6f49c41a7fcc8d9a8c524a1290b7c475d3d92ddfb031eeeb79b0c13fe9b11

          • C:\Windows\SysWOW64\installd.exe

            Filesize

            108KB

            MD5

            b8a9864722b4d416069907f57db4e820

            SHA1

            59b0055450d5f2421eecf8a02680466c380811d2

            SHA256

            3f6450c47c8accb330ae5df7a73665e60e17cb17e0dc659ac806b4c180f6b89d

            SHA512

            ed52da7692d88c0c3b2e77081a82c366058e418a821bc3e72d0aade0dfe4ed92db5c915e8dd04c46829faea5c3bfbbd39abd380f293794a8a056ac531d18bde3

          • C:\Windows\SysWOW64\nethtsrv.exe

            Filesize

            176KB

            MD5

            dc0fc8f167748ab2039dc8758c35a5ba

            SHA1

            c5e963a609dd2fd373da7319f9474345c626e576

            SHA256

            cad1f38ba1da418561a488ede23d6eca3ff8ecf7b4478a5d03cb77be5dfffa4e

            SHA512

            38ebc5018838a16864668ac50877d20fe296c61d5f1b39a987f8073d85e90eb616af041352003c41ad76587f4e9807cb82d46cff75dded8febbf203ec77aa4cb

          • C:\Windows\SysWOW64\nethtsrv.exe

            Filesize

            176KB

            MD5

            dc0fc8f167748ab2039dc8758c35a5ba

            SHA1

            c5e963a609dd2fd373da7319f9474345c626e576

            SHA256

            cad1f38ba1da418561a488ede23d6eca3ff8ecf7b4478a5d03cb77be5dfffa4e

            SHA512

            38ebc5018838a16864668ac50877d20fe296c61d5f1b39a987f8073d85e90eb616af041352003c41ad76587f4e9807cb82d46cff75dded8febbf203ec77aa4cb

          • C:\Windows\SysWOW64\netupdsrv.exe

            Filesize

            158KB

            MD5

            1594000cc5d7483ad62653564603f1f1

            SHA1

            f3773dbdafeb20c7f219b45b8d2e3a4d3d44deab

            SHA256

            663ca451d2cef4e258dd151cc97c1382e4f2ce4813041c6c51288f4b992b8412

            SHA512

            fccf2d4ed6a9f16fe7336c0623771acf5e8ca2e7fc786f34b10e83e0d98bf11f8f97d3c32c773f2bcaf4511dfbc24266e89dda155ea2bee2f7e56afa9236cc6f

          • C:\Windows\SysWOW64\netupdsrv.exe

            Filesize

            158KB

            MD5

            1594000cc5d7483ad62653564603f1f1

            SHA1

            f3773dbdafeb20c7f219b45b8d2e3a4d3d44deab

            SHA256

            663ca451d2cef4e258dd151cc97c1382e4f2ce4813041c6c51288f4b992b8412

            SHA512

            fccf2d4ed6a9f16fe7336c0623771acf5e8ca2e7fc786f34b10e83e0d98bf11f8f97d3c32c773f2bcaf4511dfbc24266e89dda155ea2bee2f7e56afa9236cc6f

          • \Users\Admin\AppData\Local\Temp\nstB51F.tmp\System.dll

            Filesize

            11KB

            MD5

            c17103ae9072a06da581dec998343fc1

            SHA1

            b72148c6bdfaada8b8c3f950e610ee7cf1da1f8d

            SHA256

            dc58d8ad81cacb0c1ed72e33bff8f23ea40b5252b5bb55d393a0903e6819ae2f

            SHA512

            d32a71aaef18e993f28096d536e41c4d016850721b31171513ce28bbd805a54fd290b7c3e9d935f72e676a1acfb4f0dcc89d95040a0dd29f2b6975855c18986f

          • \Users\Admin\AppData\Local\Temp\nstB51F.tmp\nsExec.dll

            Filesize

            6KB

            MD5

            acc2b699edfea5bf5aae45aba3a41e96

            SHA1

            d2accf4d494e43ceb2cff69abe4dd17147d29cc2

            SHA256

            168a974eaa3f588d759db3f47c1a9fdc3494ba1fa1a73a84e5e3b2a4d58abd7e

            SHA512

            e29ea10ada98c71a18273b04f44f385b120d4e8473e441ce5748cfa44a23648814f2656f429b85440157988c88de776c6ac008dc38bf09cbb746c230a46c69fe

          • \Users\Admin\AppData\Local\Temp\nstB51F.tmp\nsExec.dll

            Filesize

            6KB

            MD5

            acc2b699edfea5bf5aae45aba3a41e96

            SHA1

            d2accf4d494e43ceb2cff69abe4dd17147d29cc2

            SHA256

            168a974eaa3f588d759db3f47c1a9fdc3494ba1fa1a73a84e5e3b2a4d58abd7e

            SHA512

            e29ea10ada98c71a18273b04f44f385b120d4e8473e441ce5748cfa44a23648814f2656f429b85440157988c88de776c6ac008dc38bf09cbb746c230a46c69fe

          • \Users\Admin\AppData\Local\Temp\nstB51F.tmp\nsExec.dll

            Filesize

            6KB

            MD5

            acc2b699edfea5bf5aae45aba3a41e96

            SHA1

            d2accf4d494e43ceb2cff69abe4dd17147d29cc2

            SHA256

            168a974eaa3f588d759db3f47c1a9fdc3494ba1fa1a73a84e5e3b2a4d58abd7e

            SHA512

            e29ea10ada98c71a18273b04f44f385b120d4e8473e441ce5748cfa44a23648814f2656f429b85440157988c88de776c6ac008dc38bf09cbb746c230a46c69fe

          • \Users\Admin\AppData\Local\Temp\nstB51F.tmp\nsExec.dll

            Filesize

            6KB

            MD5

            acc2b699edfea5bf5aae45aba3a41e96

            SHA1

            d2accf4d494e43ceb2cff69abe4dd17147d29cc2

            SHA256

            168a974eaa3f588d759db3f47c1a9fdc3494ba1fa1a73a84e5e3b2a4d58abd7e

            SHA512

            e29ea10ada98c71a18273b04f44f385b120d4e8473e441ce5748cfa44a23648814f2656f429b85440157988c88de776c6ac008dc38bf09cbb746c230a46c69fe

          • \Windows\SysWOW64\hfnapi.dll

            Filesize

            106KB

            MD5

            c4b5152244306a677253a160482c48d3

            SHA1

            020228df2cdd743a7a5dc96803460f33ff57954d

            SHA256

            90862ddb5e899b018ec22612d837ef346ac324262e0118033106ca5e770536a0

            SHA512

            9318d9c393f8e5d0ca9aeb6e873eddf048cd5b860dfbcc97f93ff9d06bbd884d48271c61e31763b7047b37069839ea74db799d0e0fa8b4a82bb209698f7a24a6

          • \Windows\SysWOW64\hfnapi.dll

            Filesize

            106KB

            MD5

            c4b5152244306a677253a160482c48d3

            SHA1

            020228df2cdd743a7a5dc96803460f33ff57954d

            SHA256

            90862ddb5e899b018ec22612d837ef346ac324262e0118033106ca5e770536a0

            SHA512

            9318d9c393f8e5d0ca9aeb6e873eddf048cd5b860dfbcc97f93ff9d06bbd884d48271c61e31763b7047b37069839ea74db799d0e0fa8b4a82bb209698f7a24a6

          • \Windows\SysWOW64\hfnapi.dll

            Filesize

            106KB

            MD5

            c4b5152244306a677253a160482c48d3

            SHA1

            020228df2cdd743a7a5dc96803460f33ff57954d

            SHA256

            90862ddb5e899b018ec22612d837ef346ac324262e0118033106ca5e770536a0

            SHA512

            9318d9c393f8e5d0ca9aeb6e873eddf048cd5b860dfbcc97f93ff9d06bbd884d48271c61e31763b7047b37069839ea74db799d0e0fa8b4a82bb209698f7a24a6

          • \Windows\SysWOW64\hfpapi.dll

            Filesize

            244KB

            MD5

            2dfa6ba8f077f2ad016d27e46d2aa7e0

            SHA1

            a9334f23f18877f4c9c5b78c9c71a8919273d5c1

            SHA256

            c74dcd879d182f7e3838bfaf6657c69149b7dab36c9abef7824c8380f18a6f90

            SHA512

            712218e2259a0529fcea74cd1d392751dd1e41670f4f77d8e05b202206db29ab8ce6f49c41a7fcc8d9a8c524a1290b7c475d3d92ddfb031eeeb79b0c13fe9b11

          • \Windows\SysWOW64\hfpapi.dll

            Filesize

            244KB

            MD5

            2dfa6ba8f077f2ad016d27e46d2aa7e0

            SHA1

            a9334f23f18877f4c9c5b78c9c71a8919273d5c1

            SHA256

            c74dcd879d182f7e3838bfaf6657c69149b7dab36c9abef7824c8380f18a6f90

            SHA512

            712218e2259a0529fcea74cd1d392751dd1e41670f4f77d8e05b202206db29ab8ce6f49c41a7fcc8d9a8c524a1290b7c475d3d92ddfb031eeeb79b0c13fe9b11

          • \Windows\SysWOW64\installd.exe

            Filesize

            108KB

            MD5

            b8a9864722b4d416069907f57db4e820

            SHA1

            59b0055450d5f2421eecf8a02680466c380811d2

            SHA256

            3f6450c47c8accb330ae5df7a73665e60e17cb17e0dc659ac806b4c180f6b89d

            SHA512

            ed52da7692d88c0c3b2e77081a82c366058e418a821bc3e72d0aade0dfe4ed92db5c915e8dd04c46829faea5c3bfbbd39abd380f293794a8a056ac531d18bde3

          • \Windows\SysWOW64\nethtsrv.exe

            Filesize

            176KB

            MD5

            dc0fc8f167748ab2039dc8758c35a5ba

            SHA1

            c5e963a609dd2fd373da7319f9474345c626e576

            SHA256

            cad1f38ba1da418561a488ede23d6eca3ff8ecf7b4478a5d03cb77be5dfffa4e

            SHA512

            38ebc5018838a16864668ac50877d20fe296c61d5f1b39a987f8073d85e90eb616af041352003c41ad76587f4e9807cb82d46cff75dded8febbf203ec77aa4cb

          • \Windows\SysWOW64\netupdsrv.exe

            Filesize

            158KB

            MD5

            1594000cc5d7483ad62653564603f1f1

            SHA1

            f3773dbdafeb20c7f219b45b8d2e3a4d3d44deab

            SHA256

            663ca451d2cef4e258dd151cc97c1382e4f2ce4813041c6c51288f4b992b8412

            SHA512

            fccf2d4ed6a9f16fe7336c0623771acf5e8ca2e7fc786f34b10e83e0d98bf11f8f97d3c32c773f2bcaf4511dfbc24266e89dda155ea2bee2f7e56afa9236cc6f

          • memory/588-59-0x0000000000000000-mapping.dmp

          • memory/1068-62-0x0000000000000000-mapping.dmp

          • memory/1152-91-0x0000000000360000-0x00000000007BE000-memory.dmp

            Filesize

            4.4MB

          • memory/1152-54-0x0000000075881000-0x0000000075883000-memory.dmp

            Filesize

            8KB

          • memory/1152-55-0x0000000000360000-0x00000000007BE000-memory.dmp

            Filesize

            4.4MB

          • memory/1152-60-0x0000000000360000-0x00000000007BE000-memory.dmp

            Filesize

            4.4MB

          • memory/1200-77-0x0000000000000000-mapping.dmp

          • memory/1208-82-0x0000000000000000-mapping.dmp

          • memory/1376-58-0x0000000000000000-mapping.dmp

          • memory/1400-63-0x0000000000000000-mapping.dmp

          • memory/1576-71-0x0000000000000000-mapping.dmp

          • memory/1588-87-0x0000000000000000-mapping.dmp

          • memory/1764-88-0x0000000000000000-mapping.dmp

          • memory/1956-81-0x0000000000000000-mapping.dmp

          • memory/1996-65-0x0000000000000000-mapping.dmp