Analysis

  • max time kernel
    90s
  • max time network
    155s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20220901-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20220901-enlocale:en-usos:windows10-2004-x64system
  • submitted
    23-11-2022 10:25

General

  • Target

    561cac904d6c7226566ddfcd444a2e19264d3b8a6792b3f6fff99fd4a06172ef.exe

  • Size

    602KB

  • MD5

    2194cd15949b31e9610699f6a1fb4dc0

  • SHA1

    ae6e5e1bb0357bc95a6e880aea2a7102bfed56ee

  • SHA256

    561cac904d6c7226566ddfcd444a2e19264d3b8a6792b3f6fff99fd4a06172ef

  • SHA512

    4dfeb9c8366e9f0475c474dc6589e32287f3806dc31a57d9dfaebc58a19923175e1043ed8c94baebb04af56b3f4a4822c00f141d00af84b6f7816e139789c10a

  • SSDEEP

    12288:MIny5DYTgp7XZuD4GMDEDosS7zOp01Bn6XF2y7EY:KUTgx8DKDEBSy+Bn24Y

Score
8/10

Malware Config

Signatures

  • Drops file in Drivers directory 1 IoCs
  • Executes dropped EXE 5 IoCs
  • Loads dropped DLL 14 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.

  • Modifies data under HKEY_USERS 1 IoCs
  • Runs net.exe
  • Suspicious behavior: LoadsDriver 1 IoCs
  • Suspicious use of AdjustPrivilegeToken 1 IoCs
  • Suspicious use of WriteProcessMemory 33 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\561cac904d6c7226566ddfcd444a2e19264d3b8a6792b3f6fff99fd4a06172ef.exe
    "C:\Users\Admin\AppData\Local\Temp\561cac904d6c7226566ddfcd444a2e19264d3b8a6792b3f6fff99fd4a06172ef.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:4868
    • C:\Windows\SysWOW64\net.exe
      net stop nethttpservice
      2⤵
      • Suspicious use of WriteProcessMemory
      PID:4980
      • C:\Windows\SysWOW64\net1.exe
        C:\Windows\system32\net1 stop nethttpservice
        3⤵
          PID:616
      • C:\Windows\SysWOW64\net.exe
        net stop serviceupdater
        2⤵
        • Suspicious use of WriteProcessMemory
        PID:2328
        • C:\Windows\SysWOW64\net1.exe
          C:\Windows\system32\net1 stop serviceupdater
          3⤵
            PID:1652
        • C:\Windows\SysWOW64\installd.exe
          "C:\Windows\system32\installd.exe" nethfdrv
          2⤵
          • Executes dropped EXE
          • Loads dropped DLL
          PID:632
        • C:\Windows\SysWOW64\nethtsrv.exe
          "C:\Windows\system32\nethtsrv.exe" -nfdi
          2⤵
          • Executes dropped EXE
          • Loads dropped DLL
          PID:3844
        • C:\Windows\SysWOW64\netupdsrv.exe
          "C:\Windows\system32\netupdsrv.exe" -nfdi
          2⤵
          • Executes dropped EXE
          PID:3972
        • C:\Windows\SysWOW64\net.exe
          net start nethttpservice
          2⤵
          • Suspicious use of WriteProcessMemory
          PID:3712
          • C:\Windows\SysWOW64\net1.exe
            C:\Windows\system32\net1 start nethttpservice
            3⤵
              PID:4168
          • C:\Windows\SysWOW64\net.exe
            net start serviceupdater
            2⤵
            • Suspicious use of WriteProcessMemory
            PID:1464
            • C:\Windows\SysWOW64\net1.exe
              C:\Windows\system32\net1 start serviceupdater
              3⤵
                PID:1692
          • C:\Windows\SysWOW64\nethtsrv.exe
            C:\Windows\SysWOW64\nethtsrv.exe
            1⤵
            • Executes dropped EXE
            • Loads dropped DLL
            • Modifies data under HKEY_USERS
            • Suspicious use of AdjustPrivilegeToken
            PID:1480
          • C:\Windows\SysWOW64\netupdsrv.exe
            C:\Windows\SysWOW64\netupdsrv.exe
            1⤵
            • Executes dropped EXE
            PID:3524

          Network

          MITRE ATT&CK Enterprise v6

          Replay Monitor

          Loading Replay Monitor...

          Downloads

          • C:\Users\Admin\AppData\Local\Temp\nsdC47F.tmp\System.dll

            Filesize

            11KB

            MD5

            c17103ae9072a06da581dec998343fc1

            SHA1

            b72148c6bdfaada8b8c3f950e610ee7cf1da1f8d

            SHA256

            dc58d8ad81cacb0c1ed72e33bff8f23ea40b5252b5bb55d393a0903e6819ae2f

            SHA512

            d32a71aaef18e993f28096d536e41c4d016850721b31171513ce28bbd805a54fd290b7c3e9d935f72e676a1acfb4f0dcc89d95040a0dd29f2b6975855c18986f

          • C:\Users\Admin\AppData\Local\Temp\nsdC47F.tmp\nsExec.dll

            Filesize

            6KB

            MD5

            acc2b699edfea5bf5aae45aba3a41e96

            SHA1

            d2accf4d494e43ceb2cff69abe4dd17147d29cc2

            SHA256

            168a974eaa3f588d759db3f47c1a9fdc3494ba1fa1a73a84e5e3b2a4d58abd7e

            SHA512

            e29ea10ada98c71a18273b04f44f385b120d4e8473e441ce5748cfa44a23648814f2656f429b85440157988c88de776c6ac008dc38bf09cbb746c230a46c69fe

          • C:\Users\Admin\AppData\Local\Temp\nsdC47F.tmp\nsExec.dll

            Filesize

            6KB

            MD5

            acc2b699edfea5bf5aae45aba3a41e96

            SHA1

            d2accf4d494e43ceb2cff69abe4dd17147d29cc2

            SHA256

            168a974eaa3f588d759db3f47c1a9fdc3494ba1fa1a73a84e5e3b2a4d58abd7e

            SHA512

            e29ea10ada98c71a18273b04f44f385b120d4e8473e441ce5748cfa44a23648814f2656f429b85440157988c88de776c6ac008dc38bf09cbb746c230a46c69fe

          • C:\Users\Admin\AppData\Local\Temp\nsdC47F.tmp\nsExec.dll

            Filesize

            6KB

            MD5

            acc2b699edfea5bf5aae45aba3a41e96

            SHA1

            d2accf4d494e43ceb2cff69abe4dd17147d29cc2

            SHA256

            168a974eaa3f588d759db3f47c1a9fdc3494ba1fa1a73a84e5e3b2a4d58abd7e

            SHA512

            e29ea10ada98c71a18273b04f44f385b120d4e8473e441ce5748cfa44a23648814f2656f429b85440157988c88de776c6ac008dc38bf09cbb746c230a46c69fe

          • C:\Users\Admin\AppData\Local\Temp\nsdC47F.tmp\nsExec.dll

            Filesize

            6KB

            MD5

            acc2b699edfea5bf5aae45aba3a41e96

            SHA1

            d2accf4d494e43ceb2cff69abe4dd17147d29cc2

            SHA256

            168a974eaa3f588d759db3f47c1a9fdc3494ba1fa1a73a84e5e3b2a4d58abd7e

            SHA512

            e29ea10ada98c71a18273b04f44f385b120d4e8473e441ce5748cfa44a23648814f2656f429b85440157988c88de776c6ac008dc38bf09cbb746c230a46c69fe

          • C:\Users\Admin\AppData\Local\Temp\nsdC47F.tmp\nsExec.dll

            Filesize

            6KB

            MD5

            acc2b699edfea5bf5aae45aba3a41e96

            SHA1

            d2accf4d494e43ceb2cff69abe4dd17147d29cc2

            SHA256

            168a974eaa3f588d759db3f47c1a9fdc3494ba1fa1a73a84e5e3b2a4d58abd7e

            SHA512

            e29ea10ada98c71a18273b04f44f385b120d4e8473e441ce5748cfa44a23648814f2656f429b85440157988c88de776c6ac008dc38bf09cbb746c230a46c69fe

          • C:\Users\Admin\AppData\Local\Temp\nsdC47F.tmp\nsExec.dll

            Filesize

            6KB

            MD5

            acc2b699edfea5bf5aae45aba3a41e96

            SHA1

            d2accf4d494e43ceb2cff69abe4dd17147d29cc2

            SHA256

            168a974eaa3f588d759db3f47c1a9fdc3494ba1fa1a73a84e5e3b2a4d58abd7e

            SHA512

            e29ea10ada98c71a18273b04f44f385b120d4e8473e441ce5748cfa44a23648814f2656f429b85440157988c88de776c6ac008dc38bf09cbb746c230a46c69fe

          • C:\Users\Admin\AppData\Local\Temp\nsdC47F.tmp\nsExec.dll

            Filesize

            6KB

            MD5

            acc2b699edfea5bf5aae45aba3a41e96

            SHA1

            d2accf4d494e43ceb2cff69abe4dd17147d29cc2

            SHA256

            168a974eaa3f588d759db3f47c1a9fdc3494ba1fa1a73a84e5e3b2a4d58abd7e

            SHA512

            e29ea10ada98c71a18273b04f44f385b120d4e8473e441ce5748cfa44a23648814f2656f429b85440157988c88de776c6ac008dc38bf09cbb746c230a46c69fe

          • C:\Users\Admin\AppData\Local\Temp\nsdC47F.tmp\nsExec.dll

            Filesize

            6KB

            MD5

            acc2b699edfea5bf5aae45aba3a41e96

            SHA1

            d2accf4d494e43ceb2cff69abe4dd17147d29cc2

            SHA256

            168a974eaa3f588d759db3f47c1a9fdc3494ba1fa1a73a84e5e3b2a4d58abd7e

            SHA512

            e29ea10ada98c71a18273b04f44f385b120d4e8473e441ce5748cfa44a23648814f2656f429b85440157988c88de776c6ac008dc38bf09cbb746c230a46c69fe

          • C:\Windows\SysWOW64\hfnapi.dll

            Filesize

            106KB

            MD5

            0448cb86f3e3af4ba2362a3fcf64558f

            SHA1

            6b94534eb82379240e999efc174be72269e9ff2f

            SHA256

            aad0cd7f2c240ea8aec1f5415af45f60c6ec98f71f75621049330bd4532b6f26

            SHA512

            d40700a4fe8ea7df6f2785ed7de088d05551747797fe2fd3dfeeddb3193102cef4ef4526db1a03204ba8e8aa74577ce634382652e8c2f9649e6aa352d93feb0e

          • C:\Windows\SysWOW64\hfnapi.dll

            Filesize

            106KB

            MD5

            0448cb86f3e3af4ba2362a3fcf64558f

            SHA1

            6b94534eb82379240e999efc174be72269e9ff2f

            SHA256

            aad0cd7f2c240ea8aec1f5415af45f60c6ec98f71f75621049330bd4532b6f26

            SHA512

            d40700a4fe8ea7df6f2785ed7de088d05551747797fe2fd3dfeeddb3193102cef4ef4526db1a03204ba8e8aa74577ce634382652e8c2f9649e6aa352d93feb0e

          • C:\Windows\SysWOW64\hfnapi.dll

            Filesize

            106KB

            MD5

            0448cb86f3e3af4ba2362a3fcf64558f

            SHA1

            6b94534eb82379240e999efc174be72269e9ff2f

            SHA256

            aad0cd7f2c240ea8aec1f5415af45f60c6ec98f71f75621049330bd4532b6f26

            SHA512

            d40700a4fe8ea7df6f2785ed7de088d05551747797fe2fd3dfeeddb3193102cef4ef4526db1a03204ba8e8aa74577ce634382652e8c2f9649e6aa352d93feb0e

          • C:\Windows\SysWOW64\hfnapi.dll

            Filesize

            106KB

            MD5

            0448cb86f3e3af4ba2362a3fcf64558f

            SHA1

            6b94534eb82379240e999efc174be72269e9ff2f

            SHA256

            aad0cd7f2c240ea8aec1f5415af45f60c6ec98f71f75621049330bd4532b6f26

            SHA512

            d40700a4fe8ea7df6f2785ed7de088d05551747797fe2fd3dfeeddb3193102cef4ef4526db1a03204ba8e8aa74577ce634382652e8c2f9649e6aa352d93feb0e

          • C:\Windows\SysWOW64\hfpapi.dll

            Filesize

            241KB

            MD5

            fd4e4391d93136638c7fb48f41134f3f

            SHA1

            24f38f648cd5900c77eda72d46dc4a401edcd291

            SHA256

            6edde8cdab7257acc29002494f8a499238b5ef5bb8d0f1ca2c2abcfcf8dde718

            SHA512

            2bcf3ce9a1cedaeae03e7e38f61b7e3e7794ef5d35588937f95d9358eb171c9532316e8047ac379bc2ed959223f996d045c43775b2de46e70c76ac38b36b7e72

          • C:\Windows\SysWOW64\hfpapi.dll

            Filesize

            241KB

            MD5

            fd4e4391d93136638c7fb48f41134f3f

            SHA1

            24f38f648cd5900c77eda72d46dc4a401edcd291

            SHA256

            6edde8cdab7257acc29002494f8a499238b5ef5bb8d0f1ca2c2abcfcf8dde718

            SHA512

            2bcf3ce9a1cedaeae03e7e38f61b7e3e7794ef5d35588937f95d9358eb171c9532316e8047ac379bc2ed959223f996d045c43775b2de46e70c76ac38b36b7e72

          • C:\Windows\SysWOW64\hfpapi.dll

            Filesize

            241KB

            MD5

            fd4e4391d93136638c7fb48f41134f3f

            SHA1

            24f38f648cd5900c77eda72d46dc4a401edcd291

            SHA256

            6edde8cdab7257acc29002494f8a499238b5ef5bb8d0f1ca2c2abcfcf8dde718

            SHA512

            2bcf3ce9a1cedaeae03e7e38f61b7e3e7794ef5d35588937f95d9358eb171c9532316e8047ac379bc2ed959223f996d045c43775b2de46e70c76ac38b36b7e72

          • C:\Windows\SysWOW64\installd.exe

            Filesize

            108KB

            MD5

            a3638a17e734dfb25eda53d7a1be7241

            SHA1

            caaf8843d8f939d765a47c44d93f0484ba86773e

            SHA256

            9eb21bb8b91eca385c7645d7114d26012826fa5b2c7fa5cb0d3e5791e01a1b56

            SHA512

            5c04a6fe2d0529f83f3fc0a19a7a8823513ab15e3807ab1eb12504c1e27f758adfcadce5c1684ee5329d999e7e8d8c646f9da9be1c0628b5889da35cb40acf08

          • C:\Windows\SysWOW64\installd.exe

            Filesize

            108KB

            MD5

            a3638a17e734dfb25eda53d7a1be7241

            SHA1

            caaf8843d8f939d765a47c44d93f0484ba86773e

            SHA256

            9eb21bb8b91eca385c7645d7114d26012826fa5b2c7fa5cb0d3e5791e01a1b56

            SHA512

            5c04a6fe2d0529f83f3fc0a19a7a8823513ab15e3807ab1eb12504c1e27f758adfcadce5c1684ee5329d999e7e8d8c646f9da9be1c0628b5889da35cb40acf08

          • C:\Windows\SysWOW64\nethtsrv.exe

            Filesize

            176KB

            MD5

            7d4cfc1d0bf780bb18ebc00ea2e63499

            SHA1

            71eb75e2c9f51584a6c0bd5e0b47647e5a0d0cbe

            SHA256

            f7e45c44241ac69b033466699bb5093db2380f9d8d9960c1dbc1118650c0917b

            SHA512

            14c659d999b5c223b5d1146780ef6a561f1532a31fa0ec9e0bf73a5ff4688cb5b89f69fe857149d78407dc7b9d0fd56feec3efd12817ac46b0eaabe3f89a3d84

          • C:\Windows\SysWOW64\nethtsrv.exe

            Filesize

            176KB

            MD5

            7d4cfc1d0bf780bb18ebc00ea2e63499

            SHA1

            71eb75e2c9f51584a6c0bd5e0b47647e5a0d0cbe

            SHA256

            f7e45c44241ac69b033466699bb5093db2380f9d8d9960c1dbc1118650c0917b

            SHA512

            14c659d999b5c223b5d1146780ef6a561f1532a31fa0ec9e0bf73a5ff4688cb5b89f69fe857149d78407dc7b9d0fd56feec3efd12817ac46b0eaabe3f89a3d84

          • C:\Windows\SysWOW64\nethtsrv.exe

            Filesize

            176KB

            MD5

            7d4cfc1d0bf780bb18ebc00ea2e63499

            SHA1

            71eb75e2c9f51584a6c0bd5e0b47647e5a0d0cbe

            SHA256

            f7e45c44241ac69b033466699bb5093db2380f9d8d9960c1dbc1118650c0917b

            SHA512

            14c659d999b5c223b5d1146780ef6a561f1532a31fa0ec9e0bf73a5ff4688cb5b89f69fe857149d78407dc7b9d0fd56feec3efd12817ac46b0eaabe3f89a3d84

          • C:\Windows\SysWOW64\netupdsrv.exe

            Filesize

            158KB

            MD5

            b70a6891beb8a8a1b5350b5b7b15e567

            SHA1

            1a2c9dad719187e0331d176f0f7f924194d8678a

            SHA256

            ec7c72c5e71fbeb798b1d12143565ee427696c0d15d017276b01e0b937e8f1e5

            SHA512

            be580a1117e0006a14ada7e6656441d5c226048e17674bedc85a505aa8b14828abd864179be949334b67d4522d8767d0e14dc735f71387522ac95a1ae035906f

          • C:\Windows\SysWOW64\netupdsrv.exe

            Filesize

            158KB

            MD5

            b70a6891beb8a8a1b5350b5b7b15e567

            SHA1

            1a2c9dad719187e0331d176f0f7f924194d8678a

            SHA256

            ec7c72c5e71fbeb798b1d12143565ee427696c0d15d017276b01e0b937e8f1e5

            SHA512

            be580a1117e0006a14ada7e6656441d5c226048e17674bedc85a505aa8b14828abd864179be949334b67d4522d8767d0e14dc735f71387522ac95a1ae035906f

          • C:\Windows\SysWOW64\netupdsrv.exe

            Filesize

            158KB

            MD5

            b70a6891beb8a8a1b5350b5b7b15e567

            SHA1

            1a2c9dad719187e0331d176f0f7f924194d8678a

            SHA256

            ec7c72c5e71fbeb798b1d12143565ee427696c0d15d017276b01e0b937e8f1e5

            SHA512

            be580a1117e0006a14ada7e6656441d5c226048e17674bedc85a505aa8b14828abd864179be949334b67d4522d8767d0e14dc735f71387522ac95a1ae035906f

          • memory/616-137-0x0000000000000000-mapping.dmp

          • memory/632-142-0x0000000000000000-mapping.dmp

          • memory/1464-165-0x0000000000000000-mapping.dmp

          • memory/1652-141-0x0000000000000000-mapping.dmp

          • memory/1692-166-0x0000000000000000-mapping.dmp

          • memory/2328-140-0x0000000000000000-mapping.dmp

          • memory/3712-158-0x0000000000000000-mapping.dmp

          • memory/3844-147-0x0000000000000000-mapping.dmp

          • memory/3972-153-0x0000000000000000-mapping.dmp

          • memory/4168-159-0x0000000000000000-mapping.dmp

          • memory/4868-132-0x0000000000360000-0x00000000007BE000-memory.dmp

            Filesize

            4.4MB

          • memory/4868-168-0x0000000000360000-0x00000000007BE000-memory.dmp

            Filesize

            4.4MB

          • memory/4980-136-0x0000000000000000-mapping.dmp