Analysis

  • max time kernel
    145s
  • max time network
    162s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20220812-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20220812-enlocale:en-usos:windows10-2004-x64system
  • submitted
    23-11-2022 10:31

General

  • Target

    22e92acc09e1b9e094a3b17e3ffd98dbc38fe449d99cfd9b49ff6e956862ea07.exe

  • Size

    603KB

  • MD5

    b5304d51c66c9498d43b803a5964a9cb

  • SHA1

    b641249404927d26e711b39bf8b4756a9a788741

  • SHA256

    22e92acc09e1b9e094a3b17e3ffd98dbc38fe449d99cfd9b49ff6e956862ea07

  • SHA512

    a9c4a23ce90a21a6407d433b241a3c378895bc9fa65a9f30350028d31ebf52ddc927cf25073611ea032ee0234d910463eb9e836117120bbf124ddb39b14f4e6b

  • SSDEEP

    12288:gIny5DYTmI1pR0C46Uqb56vdT03MmlQWLBWxuQisqdp5TBXeAi6:eUTmC8cUqdM9VOLBW3BqL5FXeAi

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\22e92acc09e1b9e094a3b17e3ffd98dbc38fe449d99cfd9b49ff6e956862ea07.exe
    "C:\Users\Admin\AppData\Local\Temp\22e92acc09e1b9e094a3b17e3ffd98dbc38fe449d99cfd9b49ff6e956862ea07.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:5092
    • C:\Windows\SysWOW64\net.exe
      net stop nethttpservice
      2⤵
      • Suspicious use of WriteProcessMemory
      PID:1868
      • C:\Windows\SysWOW64\net1.exe
        C:\Windows\system32\net1 stop nethttpservice
        3⤵
          PID:2720
      • C:\Windows\SysWOW64\net.exe
        net stop serviceupdater
        2⤵
        • Suspicious use of WriteProcessMemory
        PID:4932
        • C:\Windows\SysWOW64\net1.exe
          C:\Windows\system32\net1 stop serviceupdater
          3⤵
            PID:5004
        • C:\Windows\SysWOW64\installd.exe
          "C:\Windows\system32\installd.exe" nethfdrv
          2⤵
          • Executes dropped EXE
          • Loads dropped DLL
          PID:4332
        • C:\Windows\SysWOW64\nethtsrv.exe
          "C:\Windows\system32\nethtsrv.exe" -nfdi
          2⤵
          • Executes dropped EXE
          • Loads dropped DLL
          PID:2780
        • C:\Windows\SysWOW64\netupdsrv.exe
          "C:\Windows\system32\netupdsrv.exe" -nfdi
          2⤵
          • Executes dropped EXE
          PID:4800
        • C:\Windows\SysWOW64\net.exe
          net start nethttpservice
          2⤵
          • Suspicious use of WriteProcessMemory
          PID:1964
          • C:\Windows\SysWOW64\net1.exe
            C:\Windows\system32\net1 start nethttpservice
            3⤵
              PID:4924
          • C:\Windows\SysWOW64\net.exe
            net start serviceupdater
            2⤵
            • Suspicious use of WriteProcessMemory
            PID:3364
            • C:\Windows\SysWOW64\net1.exe
              C:\Windows\system32\net1 start serviceupdater
              3⤵
                PID:3952
          • 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:2064
          • C:\Windows\SysWOW64\netupdsrv.exe
            C:\Windows\SysWOW64\netupdsrv.exe
            1⤵
            • Executes dropped EXE
            PID:2788

          Network

          MITRE ATT&CK Enterprise v6

          Replay Monitor

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          Downloads

          • C:\Users\Admin\AppData\Local\Temp\nsn906F.tmp\System.dll

            Filesize

            11KB

            MD5

            c17103ae9072a06da581dec998343fc1

            SHA1

            b72148c6bdfaada8b8c3f950e610ee7cf1da1f8d

            SHA256

            dc58d8ad81cacb0c1ed72e33bff8f23ea40b5252b5bb55d393a0903e6819ae2f

            SHA512

            d32a71aaef18e993f28096d536e41c4d016850721b31171513ce28bbd805a54fd290b7c3e9d935f72e676a1acfb4f0dcc89d95040a0dd29f2b6975855c18986f

          • C:\Users\Admin\AppData\Local\Temp\nsn906F.tmp\nsExec.dll

            Filesize

            6KB

            MD5

            acc2b699edfea5bf5aae45aba3a41e96

            SHA1

            d2accf4d494e43ceb2cff69abe4dd17147d29cc2

            SHA256

            168a974eaa3f588d759db3f47c1a9fdc3494ba1fa1a73a84e5e3b2a4d58abd7e

            SHA512

            e29ea10ada98c71a18273b04f44f385b120d4e8473e441ce5748cfa44a23648814f2656f429b85440157988c88de776c6ac008dc38bf09cbb746c230a46c69fe

          • C:\Users\Admin\AppData\Local\Temp\nsn906F.tmp\nsExec.dll

            Filesize

            6KB

            MD5

            acc2b699edfea5bf5aae45aba3a41e96

            SHA1

            d2accf4d494e43ceb2cff69abe4dd17147d29cc2

            SHA256

            168a974eaa3f588d759db3f47c1a9fdc3494ba1fa1a73a84e5e3b2a4d58abd7e

            SHA512

            e29ea10ada98c71a18273b04f44f385b120d4e8473e441ce5748cfa44a23648814f2656f429b85440157988c88de776c6ac008dc38bf09cbb746c230a46c69fe

          • C:\Users\Admin\AppData\Local\Temp\nsn906F.tmp\nsExec.dll

            Filesize

            6KB

            MD5

            acc2b699edfea5bf5aae45aba3a41e96

            SHA1

            d2accf4d494e43ceb2cff69abe4dd17147d29cc2

            SHA256

            168a974eaa3f588d759db3f47c1a9fdc3494ba1fa1a73a84e5e3b2a4d58abd7e

            SHA512

            e29ea10ada98c71a18273b04f44f385b120d4e8473e441ce5748cfa44a23648814f2656f429b85440157988c88de776c6ac008dc38bf09cbb746c230a46c69fe

          • C:\Users\Admin\AppData\Local\Temp\nsn906F.tmp\nsExec.dll

            Filesize

            6KB

            MD5

            acc2b699edfea5bf5aae45aba3a41e96

            SHA1

            d2accf4d494e43ceb2cff69abe4dd17147d29cc2

            SHA256

            168a974eaa3f588d759db3f47c1a9fdc3494ba1fa1a73a84e5e3b2a4d58abd7e

            SHA512

            e29ea10ada98c71a18273b04f44f385b120d4e8473e441ce5748cfa44a23648814f2656f429b85440157988c88de776c6ac008dc38bf09cbb746c230a46c69fe

          • C:\Users\Admin\AppData\Local\Temp\nsn906F.tmp\nsExec.dll

            Filesize

            6KB

            MD5

            acc2b699edfea5bf5aae45aba3a41e96

            SHA1

            d2accf4d494e43ceb2cff69abe4dd17147d29cc2

            SHA256

            168a974eaa3f588d759db3f47c1a9fdc3494ba1fa1a73a84e5e3b2a4d58abd7e

            SHA512

            e29ea10ada98c71a18273b04f44f385b120d4e8473e441ce5748cfa44a23648814f2656f429b85440157988c88de776c6ac008dc38bf09cbb746c230a46c69fe

          • C:\Users\Admin\AppData\Local\Temp\nsn906F.tmp\nsExec.dll

            Filesize

            6KB

            MD5

            acc2b699edfea5bf5aae45aba3a41e96

            SHA1

            d2accf4d494e43ceb2cff69abe4dd17147d29cc2

            SHA256

            168a974eaa3f588d759db3f47c1a9fdc3494ba1fa1a73a84e5e3b2a4d58abd7e

            SHA512

            e29ea10ada98c71a18273b04f44f385b120d4e8473e441ce5748cfa44a23648814f2656f429b85440157988c88de776c6ac008dc38bf09cbb746c230a46c69fe

          • C:\Users\Admin\AppData\Local\Temp\nsn906F.tmp\nsExec.dll

            Filesize

            6KB

            MD5

            acc2b699edfea5bf5aae45aba3a41e96

            SHA1

            d2accf4d494e43ceb2cff69abe4dd17147d29cc2

            SHA256

            168a974eaa3f588d759db3f47c1a9fdc3494ba1fa1a73a84e5e3b2a4d58abd7e

            SHA512

            e29ea10ada98c71a18273b04f44f385b120d4e8473e441ce5748cfa44a23648814f2656f429b85440157988c88de776c6ac008dc38bf09cbb746c230a46c69fe

          • C:\Users\Admin\AppData\Local\Temp\nsn906F.tmp\nsExec.dll

            Filesize

            6KB

            MD5

            acc2b699edfea5bf5aae45aba3a41e96

            SHA1

            d2accf4d494e43ceb2cff69abe4dd17147d29cc2

            SHA256

            168a974eaa3f588d759db3f47c1a9fdc3494ba1fa1a73a84e5e3b2a4d58abd7e

            SHA512

            e29ea10ada98c71a18273b04f44f385b120d4e8473e441ce5748cfa44a23648814f2656f429b85440157988c88de776c6ac008dc38bf09cbb746c230a46c69fe

          • C:\Windows\SysWOW64\hfnapi.dll

            Filesize

            106KB

            MD5

            cc5b46843da86c06977ba8a71b23d14c

            SHA1

            39b0def658c81323f6f31029f7ff7a6fd4bf7d1b

            SHA256

            01024f0b238f40220bf1f5e0f9be4316f27cf0f12c4af02ffac5ad66a365083c

            SHA512

            a2a13dc6f467dd19521b32dc460b671b5d6a2696efd7ebe71a1f968f6b1031856ae377d65370645f6c6796e6e2357a7293816090605e62a792af98eac7720558

          • C:\Windows\SysWOW64\hfnapi.dll

            Filesize

            106KB

            MD5

            cc5b46843da86c06977ba8a71b23d14c

            SHA1

            39b0def658c81323f6f31029f7ff7a6fd4bf7d1b

            SHA256

            01024f0b238f40220bf1f5e0f9be4316f27cf0f12c4af02ffac5ad66a365083c

            SHA512

            a2a13dc6f467dd19521b32dc460b671b5d6a2696efd7ebe71a1f968f6b1031856ae377d65370645f6c6796e6e2357a7293816090605e62a792af98eac7720558

          • C:\Windows\SysWOW64\hfnapi.dll

            Filesize

            106KB

            MD5

            cc5b46843da86c06977ba8a71b23d14c

            SHA1

            39b0def658c81323f6f31029f7ff7a6fd4bf7d1b

            SHA256

            01024f0b238f40220bf1f5e0f9be4316f27cf0f12c4af02ffac5ad66a365083c

            SHA512

            a2a13dc6f467dd19521b32dc460b671b5d6a2696efd7ebe71a1f968f6b1031856ae377d65370645f6c6796e6e2357a7293816090605e62a792af98eac7720558

          • C:\Windows\SysWOW64\hfnapi.dll

            Filesize

            106KB

            MD5

            cc5b46843da86c06977ba8a71b23d14c

            SHA1

            39b0def658c81323f6f31029f7ff7a6fd4bf7d1b

            SHA256

            01024f0b238f40220bf1f5e0f9be4316f27cf0f12c4af02ffac5ad66a365083c

            SHA512

            a2a13dc6f467dd19521b32dc460b671b5d6a2696efd7ebe71a1f968f6b1031856ae377d65370645f6c6796e6e2357a7293816090605e62a792af98eac7720558

          • C:\Windows\SysWOW64\hfpapi.dll

            Filesize

            244KB

            MD5

            0414011313df19dc215edbbd5d1de9c8

            SHA1

            4032036084d62e7a43b60d175b7028cc11e432dc

            SHA256

            9ddeec9a1228dffce101b1280823faef74b8f209fecb3855b4cf1c96f3527f40

            SHA512

            346387e12a256b447c034613df8f028777cc9fcbd1a0523a0803960e0d131e1a9e18b0c63769cea89111690fa7884ffd8fcb07c7ccdb6ee2aa1ca336b5ba4cd2

          • C:\Windows\SysWOW64\hfpapi.dll

            Filesize

            244KB

            MD5

            0414011313df19dc215edbbd5d1de9c8

            SHA1

            4032036084d62e7a43b60d175b7028cc11e432dc

            SHA256

            9ddeec9a1228dffce101b1280823faef74b8f209fecb3855b4cf1c96f3527f40

            SHA512

            346387e12a256b447c034613df8f028777cc9fcbd1a0523a0803960e0d131e1a9e18b0c63769cea89111690fa7884ffd8fcb07c7ccdb6ee2aa1ca336b5ba4cd2

          • C:\Windows\SysWOW64\hfpapi.dll

            Filesize

            244KB

            MD5

            0414011313df19dc215edbbd5d1de9c8

            SHA1

            4032036084d62e7a43b60d175b7028cc11e432dc

            SHA256

            9ddeec9a1228dffce101b1280823faef74b8f209fecb3855b4cf1c96f3527f40

            SHA512

            346387e12a256b447c034613df8f028777cc9fcbd1a0523a0803960e0d131e1a9e18b0c63769cea89111690fa7884ffd8fcb07c7ccdb6ee2aa1ca336b5ba4cd2

          • C:\Windows\SysWOW64\installd.exe

            Filesize

            108KB

            MD5

            694e4ff753c69121d8f37c20b06e2483

            SHA1

            d08f66ff61efd7fd80f94d1714810167a0fa807c

            SHA256

            33aa26589bcd0729065d013672e4a7abd1c67e4180acc07d9a4f32842a94b75d

            SHA512

            8d379037a8df24f90c146d85b3e6a2b742ffa8f16c1095b26af8183dbee0dca33329abb8e0c1de37ef3340637e1afc16e6edea1b1b8c988fa0679605b0626274

          • C:\Windows\SysWOW64\installd.exe

            Filesize

            108KB

            MD5

            694e4ff753c69121d8f37c20b06e2483

            SHA1

            d08f66ff61efd7fd80f94d1714810167a0fa807c

            SHA256

            33aa26589bcd0729065d013672e4a7abd1c67e4180acc07d9a4f32842a94b75d

            SHA512

            8d379037a8df24f90c146d85b3e6a2b742ffa8f16c1095b26af8183dbee0dca33329abb8e0c1de37ef3340637e1afc16e6edea1b1b8c988fa0679605b0626274

          • C:\Windows\SysWOW64\nethtsrv.exe

            Filesize

            176KB

            MD5

            58d01f7b823b937f4342bc09d8c81431

            SHA1

            3cbe6f6153f9088ed03aafa080ec36d1eefffc8d

            SHA256

            7c1ee4a096ec4bb4a933bbe433a1c0609da345d3ad418ab9df541be5a8d76d46

            SHA512

            fca36764cfec5a82334e09726a01c6a877bbdb86db5c6512c09d6d507183a5378f6000726f41cb62ad17aaefe4598dec4111182ad5516668c9dd6858f5270180

          • C:\Windows\SysWOW64\nethtsrv.exe

            Filesize

            176KB

            MD5

            58d01f7b823b937f4342bc09d8c81431

            SHA1

            3cbe6f6153f9088ed03aafa080ec36d1eefffc8d

            SHA256

            7c1ee4a096ec4bb4a933bbe433a1c0609da345d3ad418ab9df541be5a8d76d46

            SHA512

            fca36764cfec5a82334e09726a01c6a877bbdb86db5c6512c09d6d507183a5378f6000726f41cb62ad17aaefe4598dec4111182ad5516668c9dd6858f5270180

          • C:\Windows\SysWOW64\nethtsrv.exe

            Filesize

            176KB

            MD5

            58d01f7b823b937f4342bc09d8c81431

            SHA1

            3cbe6f6153f9088ed03aafa080ec36d1eefffc8d

            SHA256

            7c1ee4a096ec4bb4a933bbe433a1c0609da345d3ad418ab9df541be5a8d76d46

            SHA512

            fca36764cfec5a82334e09726a01c6a877bbdb86db5c6512c09d6d507183a5378f6000726f41cb62ad17aaefe4598dec4111182ad5516668c9dd6858f5270180

          • C:\Windows\SysWOW64\netupdsrv.exe

            Filesize

            158KB

            MD5

            2811b2328ff36018d99b8a95e5295ef1

            SHA1

            35e3b8c090c1182582183705aa18df39bbe8b3f0

            SHA256

            6b143d2a51f03ae739fa238c9ec861f27506a6366be1e3b1587825a518b7bd84

            SHA512

            8f705e9fe8b134a29f7fc9eb3ec438670b85aa5602258db374eb2ba57bf874667e02c694b5a2791718a470eb1a119ea4783b140b0c1127b15ec57a2828a8d91d

          • C:\Windows\SysWOW64\netupdsrv.exe

            Filesize

            158KB

            MD5

            2811b2328ff36018d99b8a95e5295ef1

            SHA1

            35e3b8c090c1182582183705aa18df39bbe8b3f0

            SHA256

            6b143d2a51f03ae739fa238c9ec861f27506a6366be1e3b1587825a518b7bd84

            SHA512

            8f705e9fe8b134a29f7fc9eb3ec438670b85aa5602258db374eb2ba57bf874667e02c694b5a2791718a470eb1a119ea4783b140b0c1127b15ec57a2828a8d91d

          • C:\Windows\SysWOW64\netupdsrv.exe

            Filesize

            158KB

            MD5

            2811b2328ff36018d99b8a95e5295ef1

            SHA1

            35e3b8c090c1182582183705aa18df39bbe8b3f0

            SHA256

            6b143d2a51f03ae739fa238c9ec861f27506a6366be1e3b1587825a518b7bd84

            SHA512

            8f705e9fe8b134a29f7fc9eb3ec438670b85aa5602258db374eb2ba57bf874667e02c694b5a2791718a470eb1a119ea4783b140b0c1127b15ec57a2828a8d91d

          • memory/1868-135-0x0000000000000000-mapping.dmp

          • memory/1964-158-0x0000000000000000-mapping.dmp

          • memory/2720-136-0x0000000000000000-mapping.dmp

          • memory/2780-147-0x0000000000000000-mapping.dmp

          • memory/3364-165-0x0000000000000000-mapping.dmp

          • memory/3952-166-0x0000000000000000-mapping.dmp

          • memory/4332-142-0x0000000000000000-mapping.dmp

          • memory/4800-153-0x0000000000000000-mapping.dmp

          • memory/4924-159-0x0000000000000000-mapping.dmp

          • memory/4932-139-0x0000000000000000-mapping.dmp

          • memory/5004-141-0x0000000000000000-mapping.dmp

          • memory/5092-140-0x0000000000360000-0x00000000007BE000-memory.dmp

            Filesize

            4.4MB

          • memory/5092-168-0x0000000000360000-0x00000000007BE000-memory.dmp

            Filesize

            4.4MB