Analysis

  • max time kernel
    43s
  • max time network
    46s
  • platform
    windows7_x64
  • resource
    win7-20220812-en
  • resource tags

    arch:x64arch:x86image:win7-20220812-enlocale:en-usos:windows7-x64system
  • submitted
    23-11-2022 10:18

General

  • Target

    9a12f2d1c0f1e27ff641541d398f0334cbbe80b1772a529d0487b35935aaa82d.exe

  • Size

    602KB

  • MD5

    969172c4c0b41f685f39476e489dae88

  • SHA1

    ed202e7e0c9aad7aefb2c85dd0ff2c10d26b1d06

  • SHA256

    9a12f2d1c0f1e27ff641541d398f0334cbbe80b1772a529d0487b35935aaa82d

  • SHA512

    97e657eea083b73f8fb5fc06ec3e235a7d2dc219b8f480232619667538d128f86f967b39aeaa5a92938d1fe3b377cad57ae7d6dac2be68c3b9cbce7dc9a2275b

  • SSDEEP

    12288:eIny5DYTW8m1hfcb/07uaJFwUPNJrZDjsLzAWb:AUTWPhfYPSZNJtDjsb

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\9a12f2d1c0f1e27ff641541d398f0334cbbe80b1772a529d0487b35935aaa82d.exe
    "C:\Users\Admin\AppData\Local\Temp\9a12f2d1c0f1e27ff641541d398f0334cbbe80b1772a529d0487b35935aaa82d.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:1812
    • C:\Windows\SysWOW64\net.exe
      net stop nethttpservice
      2⤵
      • Suspicious use of WriteProcessMemory
      PID:1724
      • C:\Windows\SysWOW64\net1.exe
        C:\Windows\system32\net1 stop nethttpservice
        3⤵
          PID:604
      • C:\Windows\SysWOW64\net.exe
        net stop serviceupdater
        2⤵
        • Suspicious use of WriteProcessMemory
        PID:1676
        • C:\Windows\SysWOW64\net1.exe
          C:\Windows\system32\net1 stop serviceupdater
          3⤵
            PID:1464
        • C:\Windows\SysWOW64\installd.exe
          "C:\Windows\system32\installd.exe" nethfdrv
          2⤵
          • Executes dropped EXE
          • Loads dropped DLL
          PID:1704
        • C:\Windows\SysWOW64\nethtsrv.exe
          "C:\Windows\system32\nethtsrv.exe" -nfdi
          2⤵
          • Executes dropped EXE
          • Loads dropped DLL
          PID:432
        • C:\Windows\SysWOW64\netupdsrv.exe
          "C:\Windows\system32\netupdsrv.exe" -nfdi
          2⤵
          • Executes dropped EXE
          PID:1348
        • C:\Windows\SysWOW64\net.exe
          net start nethttpservice
          2⤵
          • Suspicious use of WriteProcessMemory
          PID:892
          • C:\Windows\SysWOW64\net1.exe
            C:\Windows\system32\net1 start nethttpservice
            3⤵
              PID:1984
          • C:\Windows\SysWOW64\net.exe
            net start serviceupdater
            2⤵
            • Suspicious use of WriteProcessMemory
            PID:1540
            • C:\Windows\SysWOW64\net1.exe
              C:\Windows\system32\net1 start serviceupdater
              3⤵
                PID:1960
          • C:\Windows\SysWOW64\nethtsrv.exe
            C:\Windows\SysWOW64\nethtsrv.exe
            1⤵
            • Executes dropped EXE
            • Loads dropped DLL
            • Suspicious use of AdjustPrivilegeToken
            PID:1400
          • C:\Windows\SysWOW64\netupdsrv.exe
            C:\Windows\SysWOW64\netupdsrv.exe
            1⤵
            • Executes dropped EXE
            PID:584

          Network

          MITRE ATT&CK Enterprise v6

          Replay Monitor

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          Downloads

          • C:\Windows\SysWOW64\hfnapi.dll

            Filesize

            106KB

            MD5

            a27cddfb17691cf32557af28f4b53e31

            SHA1

            ba0178f60ecbe68a2c8a6ecb1260e35bd65ca988

            SHA256

            9be519417cee6fe44c5e1104b573c5d346d9b373a9eb0176c86d63627cf681c3

            SHA512

            69fa267fc17db08e65fa76671fec4bea7aeaf14feb046e325a839f639787bfcd69c77d636f97b9bf8741cad880496d7a57e4d8d9ae88a17361e2d858d8ee20c7

          • C:\Windows\SysWOW64\hfpapi.dll

            Filesize

            241KB

            MD5

            b764ec950c4db986ffd6c3afafbffa3d

            SHA1

            b8af3c64f96ced9b3d9bd0b19a4f5a0eccfb7140

            SHA256

            bc962f4c095eb8664915d20c4231135821466653a1e9d246ea57248544baead6

            SHA512

            ec1d38243d97f5f6861aeca0e09ed097cd90de1370916fc2b3d7c97d260efd75190866383c4ba05f72fbbc0d78576795631a6f319c81287a4754de4f055e592a

          • C:\Windows\SysWOW64\installd.exe

            Filesize

            108KB

            MD5

            fb6879162b48574c221ac4a4d8e8f964

            SHA1

            392a82396288b96ae5d3f704eacb5b4a30099c83

            SHA256

            d24073b87bc5b956345fdf04dc5e16f3e8923297b32df1fbcef179715b1c280a

            SHA512

            5bb078fd1f57492ae4c9beda3e9cddefe8b8adf450ca6d65881024d7615df9d1b37a0e196e03466b3519099c98fd096dc217c8311d27b49e2494e0a7be97b424

          • C:\Windows\SysWOW64\nethtsrv.exe

            Filesize

            176KB

            MD5

            1a396e9a9a1817f03f16773c8d9eff8f

            SHA1

            450903721770317aabf4d94245e94492a66481af

            SHA256

            0b0941d0e35bb5d020ea941a849d5a6965b70ac0a810de7ad8af0fefcceb5480

            SHA512

            7eb73e4c04b19c05e3aeba5003e679ab6e6ed75e6f1323c2ec64ed133c5d200dc4d4f72a4e361f0a1092f5e89b43b36e712d891ffda453bd0876af084887e143

          • C:\Windows\SysWOW64\nethtsrv.exe

            Filesize

            176KB

            MD5

            1a396e9a9a1817f03f16773c8d9eff8f

            SHA1

            450903721770317aabf4d94245e94492a66481af

            SHA256

            0b0941d0e35bb5d020ea941a849d5a6965b70ac0a810de7ad8af0fefcceb5480

            SHA512

            7eb73e4c04b19c05e3aeba5003e679ab6e6ed75e6f1323c2ec64ed133c5d200dc4d4f72a4e361f0a1092f5e89b43b36e712d891ffda453bd0876af084887e143

          • C:\Windows\SysWOW64\netupdsrv.exe

            Filesize

            158KB

            MD5

            149686c958749b521ccc75b979c417aa

            SHA1

            c09589df5499e542dd628157b425397fc0a3d3bc

            SHA256

            e5388dabc3162414cb1a54a311229f1704161ae202c8332da7938144643c340e

            SHA512

            cc6e7c5aa21fe32cb7ff9b9b8431f5340a9133bb289f5764327632035be167fc6143df8a7c45396ca5b9704389f442cccf545ca6e3febc07104576c911a8d91d

          • C:\Windows\SysWOW64\netupdsrv.exe

            Filesize

            158KB

            MD5

            149686c958749b521ccc75b979c417aa

            SHA1

            c09589df5499e542dd628157b425397fc0a3d3bc

            SHA256

            e5388dabc3162414cb1a54a311229f1704161ae202c8332da7938144643c340e

            SHA512

            cc6e7c5aa21fe32cb7ff9b9b8431f5340a9133bb289f5764327632035be167fc6143df8a7c45396ca5b9704389f442cccf545ca6e3febc07104576c911a8d91d

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

            Filesize

            11KB

            MD5

            c17103ae9072a06da581dec998343fc1

            SHA1

            b72148c6bdfaada8b8c3f950e610ee7cf1da1f8d

            SHA256

            dc58d8ad81cacb0c1ed72e33bff8f23ea40b5252b5bb55d393a0903e6819ae2f

            SHA512

            d32a71aaef18e993f28096d536e41c4d016850721b31171513ce28bbd805a54fd290b7c3e9d935f72e676a1acfb4f0dcc89d95040a0dd29f2b6975855c18986f

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

            Filesize

            6KB

            MD5

            acc2b699edfea5bf5aae45aba3a41e96

            SHA1

            d2accf4d494e43ceb2cff69abe4dd17147d29cc2

            SHA256

            168a974eaa3f588d759db3f47c1a9fdc3494ba1fa1a73a84e5e3b2a4d58abd7e

            SHA512

            e29ea10ada98c71a18273b04f44f385b120d4e8473e441ce5748cfa44a23648814f2656f429b85440157988c88de776c6ac008dc38bf09cbb746c230a46c69fe

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

            Filesize

            6KB

            MD5

            acc2b699edfea5bf5aae45aba3a41e96

            SHA1

            d2accf4d494e43ceb2cff69abe4dd17147d29cc2

            SHA256

            168a974eaa3f588d759db3f47c1a9fdc3494ba1fa1a73a84e5e3b2a4d58abd7e

            SHA512

            e29ea10ada98c71a18273b04f44f385b120d4e8473e441ce5748cfa44a23648814f2656f429b85440157988c88de776c6ac008dc38bf09cbb746c230a46c69fe

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

            Filesize

            6KB

            MD5

            acc2b699edfea5bf5aae45aba3a41e96

            SHA1

            d2accf4d494e43ceb2cff69abe4dd17147d29cc2

            SHA256

            168a974eaa3f588d759db3f47c1a9fdc3494ba1fa1a73a84e5e3b2a4d58abd7e

            SHA512

            e29ea10ada98c71a18273b04f44f385b120d4e8473e441ce5748cfa44a23648814f2656f429b85440157988c88de776c6ac008dc38bf09cbb746c230a46c69fe

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

            Filesize

            6KB

            MD5

            acc2b699edfea5bf5aae45aba3a41e96

            SHA1

            d2accf4d494e43ceb2cff69abe4dd17147d29cc2

            SHA256

            168a974eaa3f588d759db3f47c1a9fdc3494ba1fa1a73a84e5e3b2a4d58abd7e

            SHA512

            e29ea10ada98c71a18273b04f44f385b120d4e8473e441ce5748cfa44a23648814f2656f429b85440157988c88de776c6ac008dc38bf09cbb746c230a46c69fe

          • \Windows\SysWOW64\hfnapi.dll

            Filesize

            106KB

            MD5

            a27cddfb17691cf32557af28f4b53e31

            SHA1

            ba0178f60ecbe68a2c8a6ecb1260e35bd65ca988

            SHA256

            9be519417cee6fe44c5e1104b573c5d346d9b373a9eb0176c86d63627cf681c3

            SHA512

            69fa267fc17db08e65fa76671fec4bea7aeaf14feb046e325a839f639787bfcd69c77d636f97b9bf8741cad880496d7a57e4d8d9ae88a17361e2d858d8ee20c7

          • \Windows\SysWOW64\hfnapi.dll

            Filesize

            106KB

            MD5

            a27cddfb17691cf32557af28f4b53e31

            SHA1

            ba0178f60ecbe68a2c8a6ecb1260e35bd65ca988

            SHA256

            9be519417cee6fe44c5e1104b573c5d346d9b373a9eb0176c86d63627cf681c3

            SHA512

            69fa267fc17db08e65fa76671fec4bea7aeaf14feb046e325a839f639787bfcd69c77d636f97b9bf8741cad880496d7a57e4d8d9ae88a17361e2d858d8ee20c7

          • \Windows\SysWOW64\hfnapi.dll

            Filesize

            106KB

            MD5

            a27cddfb17691cf32557af28f4b53e31

            SHA1

            ba0178f60ecbe68a2c8a6ecb1260e35bd65ca988

            SHA256

            9be519417cee6fe44c5e1104b573c5d346d9b373a9eb0176c86d63627cf681c3

            SHA512

            69fa267fc17db08e65fa76671fec4bea7aeaf14feb046e325a839f639787bfcd69c77d636f97b9bf8741cad880496d7a57e4d8d9ae88a17361e2d858d8ee20c7

          • \Windows\SysWOW64\hfpapi.dll

            Filesize

            241KB

            MD5

            b764ec950c4db986ffd6c3afafbffa3d

            SHA1

            b8af3c64f96ced9b3d9bd0b19a4f5a0eccfb7140

            SHA256

            bc962f4c095eb8664915d20c4231135821466653a1e9d246ea57248544baead6

            SHA512

            ec1d38243d97f5f6861aeca0e09ed097cd90de1370916fc2b3d7c97d260efd75190866383c4ba05f72fbbc0d78576795631a6f319c81287a4754de4f055e592a

          • \Windows\SysWOW64\hfpapi.dll

            Filesize

            241KB

            MD5

            b764ec950c4db986ffd6c3afafbffa3d

            SHA1

            b8af3c64f96ced9b3d9bd0b19a4f5a0eccfb7140

            SHA256

            bc962f4c095eb8664915d20c4231135821466653a1e9d246ea57248544baead6

            SHA512

            ec1d38243d97f5f6861aeca0e09ed097cd90de1370916fc2b3d7c97d260efd75190866383c4ba05f72fbbc0d78576795631a6f319c81287a4754de4f055e592a

          • \Windows\SysWOW64\installd.exe

            Filesize

            108KB

            MD5

            fb6879162b48574c221ac4a4d8e8f964

            SHA1

            392a82396288b96ae5d3f704eacb5b4a30099c83

            SHA256

            d24073b87bc5b956345fdf04dc5e16f3e8923297b32df1fbcef179715b1c280a

            SHA512

            5bb078fd1f57492ae4c9beda3e9cddefe8b8adf450ca6d65881024d7615df9d1b37a0e196e03466b3519099c98fd096dc217c8311d27b49e2494e0a7be97b424

          • \Windows\SysWOW64\nethtsrv.exe

            Filesize

            176KB

            MD5

            1a396e9a9a1817f03f16773c8d9eff8f

            SHA1

            450903721770317aabf4d94245e94492a66481af

            SHA256

            0b0941d0e35bb5d020ea941a849d5a6965b70ac0a810de7ad8af0fefcceb5480

            SHA512

            7eb73e4c04b19c05e3aeba5003e679ab6e6ed75e6f1323c2ec64ed133c5d200dc4d4f72a4e361f0a1092f5e89b43b36e712d891ffda453bd0876af084887e143

          • \Windows\SysWOW64\netupdsrv.exe

            Filesize

            158KB

            MD5

            149686c958749b521ccc75b979c417aa

            SHA1

            c09589df5499e542dd628157b425397fc0a3d3bc

            SHA256

            e5388dabc3162414cb1a54a311229f1704161ae202c8332da7938144643c340e

            SHA512

            cc6e7c5aa21fe32cb7ff9b9b8431f5340a9133bb289f5764327632035be167fc6143df8a7c45396ca5b9704389f442cccf545ca6e3febc07104576c911a8d91d

          • memory/432-71-0x0000000000000000-mapping.dmp

          • memory/604-58-0x0000000000000000-mapping.dmp

          • memory/892-81-0x0000000000000000-mapping.dmp

          • memory/1348-77-0x0000000000000000-mapping.dmp

          • memory/1464-62-0x0000000000000000-mapping.dmp

          • memory/1540-87-0x0000000000000000-mapping.dmp

          • memory/1676-61-0x0000000000000000-mapping.dmp

          • memory/1704-64-0x0000000000000000-mapping.dmp

          • memory/1724-57-0x0000000000000000-mapping.dmp

          • memory/1812-54-0x0000000076411000-0x0000000076413000-memory.dmp

            Filesize

            8KB

          • memory/1812-69-0x0000000000360000-0x00000000007BE000-memory.dmp

            Filesize

            4.4MB

          • memory/1812-59-0x0000000000360000-0x00000000007BE000-memory.dmp

            Filesize

            4.4MB

          • memory/1812-91-0x0000000000360000-0x00000000007BE000-memory.dmp

            Filesize

            4.4MB

          • memory/1960-88-0x0000000000000000-mapping.dmp

          • memory/1984-82-0x0000000000000000-mapping.dmp