Analysis

  • max time kernel
    183s
  • max time network
    190s
  • 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 10:32

General

  • Target

    18225a56609efb4e6fc99e0d145ff1dd39358f9db213f3739109f2ea3352889e.exe

  • Size

    602KB

  • MD5

    e3869d6854ba9ed90c5c0469a7417170

  • SHA1

    4c193090460c04a2e1fab4786e899bdb85339cc8

  • SHA256

    18225a56609efb4e6fc99e0d145ff1dd39358f9db213f3739109f2ea3352889e

  • SHA512

    00475d4d67bd95351fa096f1b23753a1d43627943837a3d451ac5705753ecd9a5bf0c440f20d90de60abcea475000f036aac51f2b20fe358e5d62e85e54537dc

  • SSDEEP

    12288:NIny5DYTj9JCKfpEMefr3b3ehXq5t1aodqiMTaffKhsSy1A:ZUTjkxfvOXC/dqiBfiWS

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\18225a56609efb4e6fc99e0d145ff1dd39358f9db213f3739109f2ea3352889e.exe
    "C:\Users\Admin\AppData\Local\Temp\18225a56609efb4e6fc99e0d145ff1dd39358f9db213f3739109f2ea3352889e.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:2928
    • C:\Windows\SysWOW64\net.exe
      net stop nethttpservice
      2⤵
      • Suspicious use of WriteProcessMemory
      PID:856
      • C:\Windows\SysWOW64\net1.exe
        C:\Windows\system32\net1 stop nethttpservice
        3⤵
          PID:5000
      • C:\Windows\SysWOW64\net.exe
        net stop serviceupdater
        2⤵
        • Suspicious use of WriteProcessMemory
        PID:4192
        • C:\Windows\SysWOW64\net1.exe
          C:\Windows\system32\net1 stop serviceupdater
          3⤵
            PID:1740
        • C:\Windows\SysWOW64\installd.exe
          "C:\Windows\system32\installd.exe" nethfdrv
          2⤵
          • Executes dropped EXE
          • Loads dropped DLL
          PID:2380
        • C:\Windows\SysWOW64\nethtsrv.exe
          "C:\Windows\system32\nethtsrv.exe" -nfdi
          2⤵
          • Executes dropped EXE
          • Loads dropped DLL
          PID:1128
        • C:\Windows\SysWOW64\netupdsrv.exe
          "C:\Windows\system32\netupdsrv.exe" -nfdi
          2⤵
          • Executes dropped EXE
          PID:996
        • C:\Windows\SysWOW64\net.exe
          net start nethttpservice
          2⤵
          • Suspicious use of WriteProcessMemory
          PID:308
          • C:\Windows\SysWOW64\net1.exe
            C:\Windows\system32\net1 start nethttpservice
            3⤵
              PID:4552
          • C:\Windows\SysWOW64\net.exe
            net start serviceupdater
            2⤵
            • Suspicious use of WriteProcessMemory
            PID:4440
            • C:\Windows\SysWOW64\net1.exe
              C:\Windows\system32\net1 start serviceupdater
              3⤵
                PID:3388
          • 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:3168
          • C:\Windows\SysWOW64\netupdsrv.exe
            C:\Windows\SysWOW64\netupdsrv.exe
            1⤵
            • Executes dropped EXE
            PID:1384

          Network

          MITRE ATT&CK Enterprise v6

          Replay Monitor

          Loading Replay Monitor...

          Downloads

          • C:\Users\Admin\AppData\Local\Temp\nsm24D0.tmp\System.dll

            Filesize

            11KB

            MD5

            c17103ae9072a06da581dec998343fc1

            SHA1

            b72148c6bdfaada8b8c3f950e610ee7cf1da1f8d

            SHA256

            dc58d8ad81cacb0c1ed72e33bff8f23ea40b5252b5bb55d393a0903e6819ae2f

            SHA512

            d32a71aaef18e993f28096d536e41c4d016850721b31171513ce28bbd805a54fd290b7c3e9d935f72e676a1acfb4f0dcc89d95040a0dd29f2b6975855c18986f

          • C:\Users\Admin\AppData\Local\Temp\nsm24D0.tmp\nsExec.dll

            Filesize

            6KB

            MD5

            acc2b699edfea5bf5aae45aba3a41e96

            SHA1

            d2accf4d494e43ceb2cff69abe4dd17147d29cc2

            SHA256

            168a974eaa3f588d759db3f47c1a9fdc3494ba1fa1a73a84e5e3b2a4d58abd7e

            SHA512

            e29ea10ada98c71a18273b04f44f385b120d4e8473e441ce5748cfa44a23648814f2656f429b85440157988c88de776c6ac008dc38bf09cbb746c230a46c69fe

          • C:\Users\Admin\AppData\Local\Temp\nsm24D0.tmp\nsExec.dll

            Filesize

            6KB

            MD5

            acc2b699edfea5bf5aae45aba3a41e96

            SHA1

            d2accf4d494e43ceb2cff69abe4dd17147d29cc2

            SHA256

            168a974eaa3f588d759db3f47c1a9fdc3494ba1fa1a73a84e5e3b2a4d58abd7e

            SHA512

            e29ea10ada98c71a18273b04f44f385b120d4e8473e441ce5748cfa44a23648814f2656f429b85440157988c88de776c6ac008dc38bf09cbb746c230a46c69fe

          • C:\Users\Admin\AppData\Local\Temp\nsm24D0.tmp\nsExec.dll

            Filesize

            6KB

            MD5

            acc2b699edfea5bf5aae45aba3a41e96

            SHA1

            d2accf4d494e43ceb2cff69abe4dd17147d29cc2

            SHA256

            168a974eaa3f588d759db3f47c1a9fdc3494ba1fa1a73a84e5e3b2a4d58abd7e

            SHA512

            e29ea10ada98c71a18273b04f44f385b120d4e8473e441ce5748cfa44a23648814f2656f429b85440157988c88de776c6ac008dc38bf09cbb746c230a46c69fe

          • C:\Users\Admin\AppData\Local\Temp\nsm24D0.tmp\nsExec.dll

            Filesize

            6KB

            MD5

            acc2b699edfea5bf5aae45aba3a41e96

            SHA1

            d2accf4d494e43ceb2cff69abe4dd17147d29cc2

            SHA256

            168a974eaa3f588d759db3f47c1a9fdc3494ba1fa1a73a84e5e3b2a4d58abd7e

            SHA512

            e29ea10ada98c71a18273b04f44f385b120d4e8473e441ce5748cfa44a23648814f2656f429b85440157988c88de776c6ac008dc38bf09cbb746c230a46c69fe

          • C:\Users\Admin\AppData\Local\Temp\nsm24D0.tmp\nsExec.dll

            Filesize

            6KB

            MD5

            acc2b699edfea5bf5aae45aba3a41e96

            SHA1

            d2accf4d494e43ceb2cff69abe4dd17147d29cc2

            SHA256

            168a974eaa3f588d759db3f47c1a9fdc3494ba1fa1a73a84e5e3b2a4d58abd7e

            SHA512

            e29ea10ada98c71a18273b04f44f385b120d4e8473e441ce5748cfa44a23648814f2656f429b85440157988c88de776c6ac008dc38bf09cbb746c230a46c69fe

          • C:\Users\Admin\AppData\Local\Temp\nsm24D0.tmp\nsExec.dll

            Filesize

            6KB

            MD5

            acc2b699edfea5bf5aae45aba3a41e96

            SHA1

            d2accf4d494e43ceb2cff69abe4dd17147d29cc2

            SHA256

            168a974eaa3f588d759db3f47c1a9fdc3494ba1fa1a73a84e5e3b2a4d58abd7e

            SHA512

            e29ea10ada98c71a18273b04f44f385b120d4e8473e441ce5748cfa44a23648814f2656f429b85440157988c88de776c6ac008dc38bf09cbb746c230a46c69fe

          • C:\Users\Admin\AppData\Local\Temp\nsm24D0.tmp\nsExec.dll

            Filesize

            6KB

            MD5

            acc2b699edfea5bf5aae45aba3a41e96

            SHA1

            d2accf4d494e43ceb2cff69abe4dd17147d29cc2

            SHA256

            168a974eaa3f588d759db3f47c1a9fdc3494ba1fa1a73a84e5e3b2a4d58abd7e

            SHA512

            e29ea10ada98c71a18273b04f44f385b120d4e8473e441ce5748cfa44a23648814f2656f429b85440157988c88de776c6ac008dc38bf09cbb746c230a46c69fe

          • C:\Users\Admin\AppData\Local\Temp\nsm24D0.tmp\nsExec.dll

            Filesize

            6KB

            MD5

            acc2b699edfea5bf5aae45aba3a41e96

            SHA1

            d2accf4d494e43ceb2cff69abe4dd17147d29cc2

            SHA256

            168a974eaa3f588d759db3f47c1a9fdc3494ba1fa1a73a84e5e3b2a4d58abd7e

            SHA512

            e29ea10ada98c71a18273b04f44f385b120d4e8473e441ce5748cfa44a23648814f2656f429b85440157988c88de776c6ac008dc38bf09cbb746c230a46c69fe

          • C:\Windows\SysWOW64\hfnapi.dll

            Filesize

            106KB

            MD5

            a4d4a44e0b535b05b6a2aad247d6aac0

            SHA1

            be146a8ba3376cdb71fca018970b8d321d5a2bc6

            SHA256

            b1c3395ea0fa9005e48bab4e2585acc61628f5edc888acc1223b6e55a251e4e1

            SHA512

            6b14378b1b666ea6d9718dd31272903ca8ed578cccc449d28c5c95e914256000cf3da94b6f514a0d2ead89f76e4bff40d1e55768f28acf3481e90fbb48b80f02

          • C:\Windows\SysWOW64\hfnapi.dll

            Filesize

            106KB

            MD5

            a4d4a44e0b535b05b6a2aad247d6aac0

            SHA1

            be146a8ba3376cdb71fca018970b8d321d5a2bc6

            SHA256

            b1c3395ea0fa9005e48bab4e2585acc61628f5edc888acc1223b6e55a251e4e1

            SHA512

            6b14378b1b666ea6d9718dd31272903ca8ed578cccc449d28c5c95e914256000cf3da94b6f514a0d2ead89f76e4bff40d1e55768f28acf3481e90fbb48b80f02

          • C:\Windows\SysWOW64\hfnapi.dll

            Filesize

            106KB

            MD5

            a4d4a44e0b535b05b6a2aad247d6aac0

            SHA1

            be146a8ba3376cdb71fca018970b8d321d5a2bc6

            SHA256

            b1c3395ea0fa9005e48bab4e2585acc61628f5edc888acc1223b6e55a251e4e1

            SHA512

            6b14378b1b666ea6d9718dd31272903ca8ed578cccc449d28c5c95e914256000cf3da94b6f514a0d2ead89f76e4bff40d1e55768f28acf3481e90fbb48b80f02

          • C:\Windows\SysWOW64\hfnapi.dll

            Filesize

            106KB

            MD5

            a4d4a44e0b535b05b6a2aad247d6aac0

            SHA1

            be146a8ba3376cdb71fca018970b8d321d5a2bc6

            SHA256

            b1c3395ea0fa9005e48bab4e2585acc61628f5edc888acc1223b6e55a251e4e1

            SHA512

            6b14378b1b666ea6d9718dd31272903ca8ed578cccc449d28c5c95e914256000cf3da94b6f514a0d2ead89f76e4bff40d1e55768f28acf3481e90fbb48b80f02

          • C:\Windows\SysWOW64\hfpapi.dll

            Filesize

            241KB

            MD5

            65e99fde0a18f7a880eff25ef388d162

            SHA1

            6b0189bc3878267adcb36413acccfc299945ef54

            SHA256

            915524ef254a6554ac27f4717c90648c96f05c4f3b626ab5cb75fe2c0a4773e3

            SHA512

            52d8c0aab070d1dfa7e7a1646197a527ebe2470115a812213f1b7f32ce015c34ed720f7fb18373d76dbe2c1ab405bce683aae01a3ad16703483a82150674e6c9

          • C:\Windows\SysWOW64\hfpapi.dll

            Filesize

            241KB

            MD5

            65e99fde0a18f7a880eff25ef388d162

            SHA1

            6b0189bc3878267adcb36413acccfc299945ef54

            SHA256

            915524ef254a6554ac27f4717c90648c96f05c4f3b626ab5cb75fe2c0a4773e3

            SHA512

            52d8c0aab070d1dfa7e7a1646197a527ebe2470115a812213f1b7f32ce015c34ed720f7fb18373d76dbe2c1ab405bce683aae01a3ad16703483a82150674e6c9

          • C:\Windows\SysWOW64\hfpapi.dll

            Filesize

            241KB

            MD5

            65e99fde0a18f7a880eff25ef388d162

            SHA1

            6b0189bc3878267adcb36413acccfc299945ef54

            SHA256

            915524ef254a6554ac27f4717c90648c96f05c4f3b626ab5cb75fe2c0a4773e3

            SHA512

            52d8c0aab070d1dfa7e7a1646197a527ebe2470115a812213f1b7f32ce015c34ed720f7fb18373d76dbe2c1ab405bce683aae01a3ad16703483a82150674e6c9

          • C:\Windows\SysWOW64\installd.exe

            Filesize

            108KB

            MD5

            574e206ee42b74ffd7c9086c5a3ebfdc

            SHA1

            da739ee34a585b5ef2a2e2f5695ce061291a91ea

            SHA256

            1e660da326640d2ded6080cdd2e8da44039195b2165cae605e590261b7052d01

            SHA512

            4beb0b133d7e4a038019b6821702a9325f6ac5ceaf61c112e47bf13e4613c4df85829c184e934f14c0a338292060c5dacc655e1e343055c36088f3e6d2a33e56

          • C:\Windows\SysWOW64\installd.exe

            Filesize

            108KB

            MD5

            574e206ee42b74ffd7c9086c5a3ebfdc

            SHA1

            da739ee34a585b5ef2a2e2f5695ce061291a91ea

            SHA256

            1e660da326640d2ded6080cdd2e8da44039195b2165cae605e590261b7052d01

            SHA512

            4beb0b133d7e4a038019b6821702a9325f6ac5ceaf61c112e47bf13e4613c4df85829c184e934f14c0a338292060c5dacc655e1e343055c36088f3e6d2a33e56

          • C:\Windows\SysWOW64\nethtsrv.exe

            Filesize

            176KB

            MD5

            3a34534c6fb436ca4b1e733d4211de4e

            SHA1

            2424183153e7eb91d0e659182e808330f396f265

            SHA256

            9b64d34114dac47bfb991b036c69e848ce9a785ad52b09e4293331d7261347d1

            SHA512

            b4d35a800ef5236a4e6bdcb0dd1fd84124351c7da44f2836eab42157fd7cb6c897199bf49496d134c5cbf2041840fc582a65cb6462ca1cb829faf31f42278163

          • C:\Windows\SysWOW64\nethtsrv.exe

            Filesize

            176KB

            MD5

            3a34534c6fb436ca4b1e733d4211de4e

            SHA1

            2424183153e7eb91d0e659182e808330f396f265

            SHA256

            9b64d34114dac47bfb991b036c69e848ce9a785ad52b09e4293331d7261347d1

            SHA512

            b4d35a800ef5236a4e6bdcb0dd1fd84124351c7da44f2836eab42157fd7cb6c897199bf49496d134c5cbf2041840fc582a65cb6462ca1cb829faf31f42278163

          • C:\Windows\SysWOW64\nethtsrv.exe

            Filesize

            176KB

            MD5

            3a34534c6fb436ca4b1e733d4211de4e

            SHA1

            2424183153e7eb91d0e659182e808330f396f265

            SHA256

            9b64d34114dac47bfb991b036c69e848ce9a785ad52b09e4293331d7261347d1

            SHA512

            b4d35a800ef5236a4e6bdcb0dd1fd84124351c7da44f2836eab42157fd7cb6c897199bf49496d134c5cbf2041840fc582a65cb6462ca1cb829faf31f42278163

          • C:\Windows\SysWOW64\netupdsrv.exe

            Filesize

            158KB

            MD5

            4521a31ff218597e40d444193f7aafbf

            SHA1

            c2d461dff9b0ead6e08c03a615827b24bb8c1ff6

            SHA256

            bbce0ee71fb9758ef2e27a79fcbae9251c727c0db473714551b1316035dbb155

            SHA512

            a861366e95f6f03d7b6f2303fda864b02f35f926d5261c31b9d9d7cca2ec60266acfae958dfb984de96380e2e6af33b0769fcace209df7775611600119963bdc

          • C:\Windows\SysWOW64\netupdsrv.exe

            Filesize

            158KB

            MD5

            4521a31ff218597e40d444193f7aafbf

            SHA1

            c2d461dff9b0ead6e08c03a615827b24bb8c1ff6

            SHA256

            bbce0ee71fb9758ef2e27a79fcbae9251c727c0db473714551b1316035dbb155

            SHA512

            a861366e95f6f03d7b6f2303fda864b02f35f926d5261c31b9d9d7cca2ec60266acfae958dfb984de96380e2e6af33b0769fcace209df7775611600119963bdc

          • C:\Windows\SysWOW64\netupdsrv.exe

            Filesize

            158KB

            MD5

            4521a31ff218597e40d444193f7aafbf

            SHA1

            c2d461dff9b0ead6e08c03a615827b24bb8c1ff6

            SHA256

            bbce0ee71fb9758ef2e27a79fcbae9251c727c0db473714551b1316035dbb155

            SHA512

            a861366e95f6f03d7b6f2303fda864b02f35f926d5261c31b9d9d7cca2ec60266acfae958dfb984de96380e2e6af33b0769fcace209df7775611600119963bdc

          • memory/308-158-0x0000000000000000-mapping.dmp

          • memory/856-135-0x0000000000000000-mapping.dmp

          • memory/996-153-0x0000000000000000-mapping.dmp

          • memory/1128-147-0x0000000000000000-mapping.dmp

          • memory/1740-141-0x0000000000000000-mapping.dmp

          • memory/2380-142-0x0000000000000000-mapping.dmp

          • memory/2928-137-0x0000000000360000-0x00000000007BE000-memory.dmp

            Filesize

            4.4MB

          • memory/2928-168-0x0000000000360000-0x00000000007BE000-memory.dmp

            Filesize

            4.4MB

          • memory/3388-166-0x0000000000000000-mapping.dmp

          • memory/4192-140-0x0000000000000000-mapping.dmp

          • memory/4440-165-0x0000000000000000-mapping.dmp

          • memory/4552-159-0x0000000000000000-mapping.dmp

          • memory/5000-136-0x0000000000000000-mapping.dmp