Analysis

  • max time kernel
    44s
  • max time network
    48s
  • platform
    windows7_x64
  • resource
    win7-20220901-en
  • resource tags

    arch:x64arch:x86image:win7-20220901-enlocale:en-usos:windows7-x64system
  • submitted
    23-11-2022 10:12

General

  • Target

    cd28ced1e65d40eedc4a07b0b4dc5f565d8927cceeab654f9f577c9748e3b692.exe

  • Size

    602KB

  • MD5

    6b25dc18a90efe787c5887d1fdfda41a

  • SHA1

    9d32749100429e9344452234b12f1078bb9f89b7

  • SHA256

    cd28ced1e65d40eedc4a07b0b4dc5f565d8927cceeab654f9f577c9748e3b692

  • SHA512

    87b5b0d7d43d0b49463ab6f03543c029ebd57adec1a3966c8c203b827d1620423f9d2533e0f500b2d93bec84117b2a787d397983d4103d7efecfdd462670b6e2

  • SSDEEP

    12288:LIny5DYTjq4VMmu0UUzwFIxrOH77cjsacrsDWLgkIGw55IsXC:zUTjqwMD0UnFIxrOMjTcrsyskIh5DXC

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\cd28ced1e65d40eedc4a07b0b4dc5f565d8927cceeab654f9f577c9748e3b692.exe
    "C:\Users\Admin\AppData\Local\Temp\cd28ced1e65d40eedc4a07b0b4dc5f565d8927cceeab654f9f577c9748e3b692.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:1348
    • C:\Windows\SysWOW64\net.exe
      net stop nethttpservice
      2⤵
      • Suspicious use of WriteProcessMemory
      PID:2036
      • C:\Windows\SysWOW64\net1.exe
        C:\Windows\system32\net1 stop nethttpservice
        3⤵
          PID:272
      • C:\Windows\SysWOW64\net.exe
        net stop serviceupdater
        2⤵
        • Suspicious use of WriteProcessMemory
        PID:564
        • C:\Windows\SysWOW64\net1.exe
          C:\Windows\system32\net1 stop serviceupdater
          3⤵
            PID:768
        • C:\Windows\SysWOW64\installd.exe
          "C:\Windows\system32\installd.exe" nethfdrv
          2⤵
          • Executes dropped EXE
          • Loads dropped DLL
          PID:268
        • C:\Windows\SysWOW64\nethtsrv.exe
          "C:\Windows\system32\nethtsrv.exe" -nfdi
          2⤵
          • Executes dropped EXE
          • Loads dropped DLL
          PID:1752
        • C:\Windows\SysWOW64\netupdsrv.exe
          "C:\Windows\system32\netupdsrv.exe" -nfdi
          2⤵
          • Executes dropped EXE
          PID:276
        • C:\Windows\SysWOW64\net.exe
          net start nethttpservice
          2⤵
          • Suspicious use of WriteProcessMemory
          PID:1936
          • C:\Windows\SysWOW64\net1.exe
            C:\Windows\system32\net1 start nethttpservice
            3⤵
              PID:316
          • C:\Windows\SysWOW64\net.exe
            net start serviceupdater
            2⤵
            • Suspicious use of WriteProcessMemory
            PID:940
            • C:\Windows\SysWOW64\net1.exe
              C:\Windows\system32\net1 start serviceupdater
              3⤵
                PID:1640
          • C:\Windows\SysWOW64\nethtsrv.exe
            C:\Windows\SysWOW64\nethtsrv.exe
            1⤵
            • Executes dropped EXE
            • Loads dropped DLL
            • Suspicious use of AdjustPrivilegeToken
            PID:1620
          • C:\Windows\SysWOW64\netupdsrv.exe
            C:\Windows\SysWOW64\netupdsrv.exe
            1⤵
            • Executes dropped EXE
            PID:1764

          Network

          MITRE ATT&CK Enterprise v6

          Replay Monitor

          Loading Replay Monitor...

          Downloads

          • C:\Windows\SysWOW64\hfnapi.dll

            Filesize

            106KB

            MD5

            bf7a7f060a7e79e6d3957eef211a842e

            SHA1

            1463c736968638bf41150d3afc09df30e6949c62

            SHA256

            55ffd91c5bb77bfe843377e3e4220b2c83d7573cbe60559589e801d911ca11d9

            SHA512

            5d3333cb7af0e5dd06ed6bf9fa5287c97fef1e6f3af5058cc24c473fe0f530eeeae45a1e66295ea74d8c617c25450ce024a45897d2bda5bf6c994c8e259acaf5

          • C:\Windows\SysWOW64\hfpapi.dll

            Filesize

            241KB

            MD5

            4ad392ad2e07158b8c897fea865f7663

            SHA1

            e378ab815b10de248066de3cb653802f31d32ec6

            SHA256

            058a19c86225e1d5f8ff693ef0db67c72e2882a845b46833ee6eb881c7a8a2a3

            SHA512

            d50ee92476760622b7ee82ec57858f502d9960aeb756503f8baf410135d5f015e608b23e69535f71c5af4b3e659540e90e02bed24bb6980f7f5d40f2d013565d

          • C:\Windows\SysWOW64\installd.exe

            Filesize

            108KB

            MD5

            3f299a1a5ff3cb78451a45dfb0e02198

            SHA1

            63953761ad627a8800e6a2ddd53cd231e4702f1a

            SHA256

            6823656365e01e89023ac5dd5ff8b16b101c26b6db3efdbd877aa256073bbe43

            SHA512

            3c348bd68749a89ebfda3122081cc9eab83175f3b6c2d0a6b6aa74fc5167202b6f4ce34b15e7003929d7114395a89368640df7dcd908dd304d2f0e829ae6a144

          • C:\Windows\SysWOW64\nethtsrv.exe

            Filesize

            176KB

            MD5

            94985b5068ffa503fa08565b10857ca7

            SHA1

            28a49b63593b89c7396972300b48ad6d1da384f2

            SHA256

            c2493d10bfb3ccff5466c69fe089587c9467c8d82a00b5fb972db1e8390f2b49

            SHA512

            da93f68f6e6a05f2339c560dfcf835f78123042d664fb6d94796137f18f2d3a20e04daf817e0b8d9def5e6a0484970a64cb1dbb614cf3b6ebcabb9bc5a1f7b62

          • C:\Windows\SysWOW64\nethtsrv.exe

            Filesize

            176KB

            MD5

            94985b5068ffa503fa08565b10857ca7

            SHA1

            28a49b63593b89c7396972300b48ad6d1da384f2

            SHA256

            c2493d10bfb3ccff5466c69fe089587c9467c8d82a00b5fb972db1e8390f2b49

            SHA512

            da93f68f6e6a05f2339c560dfcf835f78123042d664fb6d94796137f18f2d3a20e04daf817e0b8d9def5e6a0484970a64cb1dbb614cf3b6ebcabb9bc5a1f7b62

          • C:\Windows\SysWOW64\netupdsrv.exe

            Filesize

            158KB

            MD5

            ae5a9da05d272ebd786fe39ddfda4488

            SHA1

            de5c747e57c7acec96f430dadcd6b93fe45118bc

            SHA256

            085b4169fc92d029250c5121975dfd1f523adc45a67777c4db46882f67d96e0a

            SHA512

            bbea22aea15bc8e5038a1dd8f6e0ec639ec5facd95f837eb3c977c595c97292ac2702899c9755b7ad26f02493ef3bf6395d88a7e3374fb6fc3fa2ea6a0ed5836

          • C:\Windows\SysWOW64\netupdsrv.exe

            Filesize

            158KB

            MD5

            ae5a9da05d272ebd786fe39ddfda4488

            SHA1

            de5c747e57c7acec96f430dadcd6b93fe45118bc

            SHA256

            085b4169fc92d029250c5121975dfd1f523adc45a67777c4db46882f67d96e0a

            SHA512

            bbea22aea15bc8e5038a1dd8f6e0ec639ec5facd95f837eb3c977c595c97292ac2702899c9755b7ad26f02493ef3bf6395d88a7e3374fb6fc3fa2ea6a0ed5836

          • \Users\Admin\AppData\Local\Temp\nso13C.tmp\System.dll

            Filesize

            11KB

            MD5

            c17103ae9072a06da581dec998343fc1

            SHA1

            b72148c6bdfaada8b8c3f950e610ee7cf1da1f8d

            SHA256

            dc58d8ad81cacb0c1ed72e33bff8f23ea40b5252b5bb55d393a0903e6819ae2f

            SHA512

            d32a71aaef18e993f28096d536e41c4d016850721b31171513ce28bbd805a54fd290b7c3e9d935f72e676a1acfb4f0dcc89d95040a0dd29f2b6975855c18986f

          • \Users\Admin\AppData\Local\Temp\nso13C.tmp\nsExec.dll

            Filesize

            6KB

            MD5

            acc2b699edfea5bf5aae45aba3a41e96

            SHA1

            d2accf4d494e43ceb2cff69abe4dd17147d29cc2

            SHA256

            168a974eaa3f588d759db3f47c1a9fdc3494ba1fa1a73a84e5e3b2a4d58abd7e

            SHA512

            e29ea10ada98c71a18273b04f44f385b120d4e8473e441ce5748cfa44a23648814f2656f429b85440157988c88de776c6ac008dc38bf09cbb746c230a46c69fe

          • \Users\Admin\AppData\Local\Temp\nso13C.tmp\nsExec.dll

            Filesize

            6KB

            MD5

            acc2b699edfea5bf5aae45aba3a41e96

            SHA1

            d2accf4d494e43ceb2cff69abe4dd17147d29cc2

            SHA256

            168a974eaa3f588d759db3f47c1a9fdc3494ba1fa1a73a84e5e3b2a4d58abd7e

            SHA512

            e29ea10ada98c71a18273b04f44f385b120d4e8473e441ce5748cfa44a23648814f2656f429b85440157988c88de776c6ac008dc38bf09cbb746c230a46c69fe

          • \Users\Admin\AppData\Local\Temp\nso13C.tmp\nsExec.dll

            Filesize

            6KB

            MD5

            acc2b699edfea5bf5aae45aba3a41e96

            SHA1

            d2accf4d494e43ceb2cff69abe4dd17147d29cc2

            SHA256

            168a974eaa3f588d759db3f47c1a9fdc3494ba1fa1a73a84e5e3b2a4d58abd7e

            SHA512

            e29ea10ada98c71a18273b04f44f385b120d4e8473e441ce5748cfa44a23648814f2656f429b85440157988c88de776c6ac008dc38bf09cbb746c230a46c69fe

          • \Users\Admin\AppData\Local\Temp\nso13C.tmp\nsExec.dll

            Filesize

            6KB

            MD5

            acc2b699edfea5bf5aae45aba3a41e96

            SHA1

            d2accf4d494e43ceb2cff69abe4dd17147d29cc2

            SHA256

            168a974eaa3f588d759db3f47c1a9fdc3494ba1fa1a73a84e5e3b2a4d58abd7e

            SHA512

            e29ea10ada98c71a18273b04f44f385b120d4e8473e441ce5748cfa44a23648814f2656f429b85440157988c88de776c6ac008dc38bf09cbb746c230a46c69fe

          • \Windows\SysWOW64\hfnapi.dll

            Filesize

            106KB

            MD5

            bf7a7f060a7e79e6d3957eef211a842e

            SHA1

            1463c736968638bf41150d3afc09df30e6949c62

            SHA256

            55ffd91c5bb77bfe843377e3e4220b2c83d7573cbe60559589e801d911ca11d9

            SHA512

            5d3333cb7af0e5dd06ed6bf9fa5287c97fef1e6f3af5058cc24c473fe0f530eeeae45a1e66295ea74d8c617c25450ce024a45897d2bda5bf6c994c8e259acaf5

          • \Windows\SysWOW64\hfnapi.dll

            Filesize

            106KB

            MD5

            bf7a7f060a7e79e6d3957eef211a842e

            SHA1

            1463c736968638bf41150d3afc09df30e6949c62

            SHA256

            55ffd91c5bb77bfe843377e3e4220b2c83d7573cbe60559589e801d911ca11d9

            SHA512

            5d3333cb7af0e5dd06ed6bf9fa5287c97fef1e6f3af5058cc24c473fe0f530eeeae45a1e66295ea74d8c617c25450ce024a45897d2bda5bf6c994c8e259acaf5

          • \Windows\SysWOW64\hfnapi.dll

            Filesize

            106KB

            MD5

            bf7a7f060a7e79e6d3957eef211a842e

            SHA1

            1463c736968638bf41150d3afc09df30e6949c62

            SHA256

            55ffd91c5bb77bfe843377e3e4220b2c83d7573cbe60559589e801d911ca11d9

            SHA512

            5d3333cb7af0e5dd06ed6bf9fa5287c97fef1e6f3af5058cc24c473fe0f530eeeae45a1e66295ea74d8c617c25450ce024a45897d2bda5bf6c994c8e259acaf5

          • \Windows\SysWOW64\hfpapi.dll

            Filesize

            241KB

            MD5

            4ad392ad2e07158b8c897fea865f7663

            SHA1

            e378ab815b10de248066de3cb653802f31d32ec6

            SHA256

            058a19c86225e1d5f8ff693ef0db67c72e2882a845b46833ee6eb881c7a8a2a3

            SHA512

            d50ee92476760622b7ee82ec57858f502d9960aeb756503f8baf410135d5f015e608b23e69535f71c5af4b3e659540e90e02bed24bb6980f7f5d40f2d013565d

          • \Windows\SysWOW64\hfpapi.dll

            Filesize

            241KB

            MD5

            4ad392ad2e07158b8c897fea865f7663

            SHA1

            e378ab815b10de248066de3cb653802f31d32ec6

            SHA256

            058a19c86225e1d5f8ff693ef0db67c72e2882a845b46833ee6eb881c7a8a2a3

            SHA512

            d50ee92476760622b7ee82ec57858f502d9960aeb756503f8baf410135d5f015e608b23e69535f71c5af4b3e659540e90e02bed24bb6980f7f5d40f2d013565d

          • \Windows\SysWOW64\installd.exe

            Filesize

            108KB

            MD5

            3f299a1a5ff3cb78451a45dfb0e02198

            SHA1

            63953761ad627a8800e6a2ddd53cd231e4702f1a

            SHA256

            6823656365e01e89023ac5dd5ff8b16b101c26b6db3efdbd877aa256073bbe43

            SHA512

            3c348bd68749a89ebfda3122081cc9eab83175f3b6c2d0a6b6aa74fc5167202b6f4ce34b15e7003929d7114395a89368640df7dcd908dd304d2f0e829ae6a144

          • \Windows\SysWOW64\nethtsrv.exe

            Filesize

            176KB

            MD5

            94985b5068ffa503fa08565b10857ca7

            SHA1

            28a49b63593b89c7396972300b48ad6d1da384f2

            SHA256

            c2493d10bfb3ccff5466c69fe089587c9467c8d82a00b5fb972db1e8390f2b49

            SHA512

            da93f68f6e6a05f2339c560dfcf835f78123042d664fb6d94796137f18f2d3a20e04daf817e0b8d9def5e6a0484970a64cb1dbb614cf3b6ebcabb9bc5a1f7b62

          • \Windows\SysWOW64\netupdsrv.exe

            Filesize

            158KB

            MD5

            ae5a9da05d272ebd786fe39ddfda4488

            SHA1

            de5c747e57c7acec96f430dadcd6b93fe45118bc

            SHA256

            085b4169fc92d029250c5121975dfd1f523adc45a67777c4db46882f67d96e0a

            SHA512

            bbea22aea15bc8e5038a1dd8f6e0ec639ec5facd95f837eb3c977c595c97292ac2702899c9755b7ad26f02493ef3bf6395d88a7e3374fb6fc3fa2ea6a0ed5836

          • memory/268-64-0x0000000000000000-mapping.dmp

          • memory/272-58-0x0000000000000000-mapping.dmp

          • memory/276-76-0x0000000000000000-mapping.dmp

          • memory/316-81-0x0000000000000000-mapping.dmp

          • memory/564-61-0x0000000000000000-mapping.dmp

          • memory/768-62-0x0000000000000000-mapping.dmp

          • memory/940-86-0x0000000000000000-mapping.dmp

          • memory/1348-54-0x0000000075601000-0x0000000075603000-memory.dmp

            Filesize

            8KB

          • memory/1348-59-0x0000000000360000-0x00000000007BE000-memory.dmp

            Filesize

            4.4MB

          • memory/1348-90-0x0000000000360000-0x00000000007BE000-memory.dmp

            Filesize

            4.4MB

          • memory/1640-87-0x0000000000000000-mapping.dmp

          • memory/1752-70-0x0000000000000000-mapping.dmp

          • memory/1936-80-0x0000000000000000-mapping.dmp

          • memory/2036-57-0x0000000000000000-mapping.dmp