Analysis

  • max time kernel
    152s
  • max time network
    194s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20221111-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20221111-enlocale:en-usos:windows10-2004-x64system
  • submitted
    23-11-2022 10:25

General

  • Target

    57827e497f9b390c49a1925385e36097e8e5818aa46676c064befd8375e6b558.exe

  • Size

    603KB

  • MD5

    3538821c87a8f074795bd4601b034c19

  • SHA1

    57be99e465b406a7ff7ea14ba241cf12fc6cd4cf

  • SHA256

    57827e497f9b390c49a1925385e36097e8e5818aa46676c064befd8375e6b558

  • SHA512

    7042b2714065d60215a968d15c5276715da01d7ebf701c701118f2f03a86035d072072d236d3ff7958b46674bf174f9e45d405dfb68a6e555636406b2ef055e1

  • SSDEEP

    12288:tIny5DYT9Gz5oBzcPRWTDxMPx1krkbWzy7od4i:5UT9IaQZWHiqkd64

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\57827e497f9b390c49a1925385e36097e8e5818aa46676c064befd8375e6b558.exe
    "C:\Users\Admin\AppData\Local\Temp\57827e497f9b390c49a1925385e36097e8e5818aa46676c064befd8375e6b558.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:4068
    • C:\Windows\SysWOW64\net.exe
      net stop nethttpservice
      2⤵
      • Suspicious use of WriteProcessMemory
      PID:3456
      • C:\Windows\SysWOW64\net1.exe
        C:\Windows\system32\net1 stop nethttpservice
        3⤵
          PID:816
      • C:\Windows\SysWOW64\net.exe
        net stop serviceupdater
        2⤵
        • Suspicious use of WriteProcessMemory
        PID:204
        • C:\Windows\SysWOW64\net1.exe
          C:\Windows\system32\net1 stop serviceupdater
          3⤵
            PID:2840
        • C:\Windows\SysWOW64\installd.exe
          "C:\Windows\system32\installd.exe" nethfdrv
          2⤵
          • Executes dropped EXE
          • Loads dropped DLL
          PID:3392
        • C:\Windows\SysWOW64\nethtsrv.exe
          "C:\Windows\system32\nethtsrv.exe" -nfdi
          2⤵
          • Executes dropped EXE
          • Loads dropped DLL
          PID:2096
        • C:\Windows\SysWOW64\netupdsrv.exe
          "C:\Windows\system32\netupdsrv.exe" -nfdi
          2⤵
          • Executes dropped EXE
          PID:4852
        • C:\Windows\SysWOW64\net.exe
          net start nethttpservice
          2⤵
          • Suspicious use of WriteProcessMemory
          PID:2304
          • C:\Windows\SysWOW64\net1.exe
            C:\Windows\system32\net1 start nethttpservice
            3⤵
              PID:1348
          • C:\Windows\SysWOW64\net.exe
            net start serviceupdater
            2⤵
            • Suspicious use of WriteProcessMemory
            PID:1440
            • C:\Windows\SysWOW64\net1.exe
              C:\Windows\system32\net1 start serviceupdater
              3⤵
                PID:2232
          • 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:4276
          • C:\Windows\SysWOW64\netupdsrv.exe
            C:\Windows\SysWOW64\netupdsrv.exe
            1⤵
            • Executes dropped EXE
            PID:2664

          Network

          MITRE ATT&CK Enterprise v6

          Replay Monitor

          Loading Replay Monitor...

          Downloads

          • C:\Users\Admin\AppData\Local\Temp\nsrB17F.tmp\System.dll

            Filesize

            11KB

            MD5

            c17103ae9072a06da581dec998343fc1

            SHA1

            b72148c6bdfaada8b8c3f950e610ee7cf1da1f8d

            SHA256

            dc58d8ad81cacb0c1ed72e33bff8f23ea40b5252b5bb55d393a0903e6819ae2f

            SHA512

            d32a71aaef18e993f28096d536e41c4d016850721b31171513ce28bbd805a54fd290b7c3e9d935f72e676a1acfb4f0dcc89d95040a0dd29f2b6975855c18986f

          • C:\Users\Admin\AppData\Local\Temp\nsrB17F.tmp\nsExec.dll

            Filesize

            6KB

            MD5

            acc2b699edfea5bf5aae45aba3a41e96

            SHA1

            d2accf4d494e43ceb2cff69abe4dd17147d29cc2

            SHA256

            168a974eaa3f588d759db3f47c1a9fdc3494ba1fa1a73a84e5e3b2a4d58abd7e

            SHA512

            e29ea10ada98c71a18273b04f44f385b120d4e8473e441ce5748cfa44a23648814f2656f429b85440157988c88de776c6ac008dc38bf09cbb746c230a46c69fe

          • C:\Users\Admin\AppData\Local\Temp\nsrB17F.tmp\nsExec.dll

            Filesize

            6KB

            MD5

            acc2b699edfea5bf5aae45aba3a41e96

            SHA1

            d2accf4d494e43ceb2cff69abe4dd17147d29cc2

            SHA256

            168a974eaa3f588d759db3f47c1a9fdc3494ba1fa1a73a84e5e3b2a4d58abd7e

            SHA512

            e29ea10ada98c71a18273b04f44f385b120d4e8473e441ce5748cfa44a23648814f2656f429b85440157988c88de776c6ac008dc38bf09cbb746c230a46c69fe

          • C:\Users\Admin\AppData\Local\Temp\nsrB17F.tmp\nsExec.dll

            Filesize

            6KB

            MD5

            acc2b699edfea5bf5aae45aba3a41e96

            SHA1

            d2accf4d494e43ceb2cff69abe4dd17147d29cc2

            SHA256

            168a974eaa3f588d759db3f47c1a9fdc3494ba1fa1a73a84e5e3b2a4d58abd7e

            SHA512

            e29ea10ada98c71a18273b04f44f385b120d4e8473e441ce5748cfa44a23648814f2656f429b85440157988c88de776c6ac008dc38bf09cbb746c230a46c69fe

          • C:\Users\Admin\AppData\Local\Temp\nsrB17F.tmp\nsExec.dll

            Filesize

            6KB

            MD5

            acc2b699edfea5bf5aae45aba3a41e96

            SHA1

            d2accf4d494e43ceb2cff69abe4dd17147d29cc2

            SHA256

            168a974eaa3f588d759db3f47c1a9fdc3494ba1fa1a73a84e5e3b2a4d58abd7e

            SHA512

            e29ea10ada98c71a18273b04f44f385b120d4e8473e441ce5748cfa44a23648814f2656f429b85440157988c88de776c6ac008dc38bf09cbb746c230a46c69fe

          • C:\Users\Admin\AppData\Local\Temp\nsrB17F.tmp\nsExec.dll

            Filesize

            6KB

            MD5

            acc2b699edfea5bf5aae45aba3a41e96

            SHA1

            d2accf4d494e43ceb2cff69abe4dd17147d29cc2

            SHA256

            168a974eaa3f588d759db3f47c1a9fdc3494ba1fa1a73a84e5e3b2a4d58abd7e

            SHA512

            e29ea10ada98c71a18273b04f44f385b120d4e8473e441ce5748cfa44a23648814f2656f429b85440157988c88de776c6ac008dc38bf09cbb746c230a46c69fe

          • C:\Users\Admin\AppData\Local\Temp\nsrB17F.tmp\nsExec.dll

            Filesize

            6KB

            MD5

            acc2b699edfea5bf5aae45aba3a41e96

            SHA1

            d2accf4d494e43ceb2cff69abe4dd17147d29cc2

            SHA256

            168a974eaa3f588d759db3f47c1a9fdc3494ba1fa1a73a84e5e3b2a4d58abd7e

            SHA512

            e29ea10ada98c71a18273b04f44f385b120d4e8473e441ce5748cfa44a23648814f2656f429b85440157988c88de776c6ac008dc38bf09cbb746c230a46c69fe

          • C:\Users\Admin\AppData\Local\Temp\nsrB17F.tmp\nsExec.dll

            Filesize

            6KB

            MD5

            acc2b699edfea5bf5aae45aba3a41e96

            SHA1

            d2accf4d494e43ceb2cff69abe4dd17147d29cc2

            SHA256

            168a974eaa3f588d759db3f47c1a9fdc3494ba1fa1a73a84e5e3b2a4d58abd7e

            SHA512

            e29ea10ada98c71a18273b04f44f385b120d4e8473e441ce5748cfa44a23648814f2656f429b85440157988c88de776c6ac008dc38bf09cbb746c230a46c69fe

          • C:\Users\Admin\AppData\Local\Temp\nsrB17F.tmp\nsExec.dll

            Filesize

            6KB

            MD5

            acc2b699edfea5bf5aae45aba3a41e96

            SHA1

            d2accf4d494e43ceb2cff69abe4dd17147d29cc2

            SHA256

            168a974eaa3f588d759db3f47c1a9fdc3494ba1fa1a73a84e5e3b2a4d58abd7e

            SHA512

            e29ea10ada98c71a18273b04f44f385b120d4e8473e441ce5748cfa44a23648814f2656f429b85440157988c88de776c6ac008dc38bf09cbb746c230a46c69fe

          • C:\Windows\SysWOW64\hfnapi.dll

            Filesize

            106KB

            MD5

            2600354fc9d40b662615abe65a3b4235

            SHA1

            2421c7131c0efaa230571bd8e6e8204c0ababaae

            SHA256

            41f20de86fe6873d35619d17f478fdabc0390c03600b2f5ed5fdd5b50a94168a

            SHA512

            c3e35fb311d4861fac15fd57e975ed7a0d6afb6232b3310b3f945dbc0701b885847b668e6b827bf494c9f25464a6caac9e56f8f8147add394c4f2ef9dd6e03ac

          • C:\Windows\SysWOW64\hfnapi.dll

            Filesize

            106KB

            MD5

            2600354fc9d40b662615abe65a3b4235

            SHA1

            2421c7131c0efaa230571bd8e6e8204c0ababaae

            SHA256

            41f20de86fe6873d35619d17f478fdabc0390c03600b2f5ed5fdd5b50a94168a

            SHA512

            c3e35fb311d4861fac15fd57e975ed7a0d6afb6232b3310b3f945dbc0701b885847b668e6b827bf494c9f25464a6caac9e56f8f8147add394c4f2ef9dd6e03ac

          • C:\Windows\SysWOW64\hfnapi.dll

            Filesize

            106KB

            MD5

            2600354fc9d40b662615abe65a3b4235

            SHA1

            2421c7131c0efaa230571bd8e6e8204c0ababaae

            SHA256

            41f20de86fe6873d35619d17f478fdabc0390c03600b2f5ed5fdd5b50a94168a

            SHA512

            c3e35fb311d4861fac15fd57e975ed7a0d6afb6232b3310b3f945dbc0701b885847b668e6b827bf494c9f25464a6caac9e56f8f8147add394c4f2ef9dd6e03ac

          • C:\Windows\SysWOW64\hfnapi.dll

            Filesize

            106KB

            MD5

            2600354fc9d40b662615abe65a3b4235

            SHA1

            2421c7131c0efaa230571bd8e6e8204c0ababaae

            SHA256

            41f20de86fe6873d35619d17f478fdabc0390c03600b2f5ed5fdd5b50a94168a

            SHA512

            c3e35fb311d4861fac15fd57e975ed7a0d6afb6232b3310b3f945dbc0701b885847b668e6b827bf494c9f25464a6caac9e56f8f8147add394c4f2ef9dd6e03ac

          • C:\Windows\SysWOW64\hfpapi.dll

            Filesize

            241KB

            MD5

            49116d30416d6e4e03a241e1268df60e

            SHA1

            d414538c467ca61679ad0c3a0d3ad2967a1d9464

            SHA256

            120168ad301cc81ab751488b38458f1e194a57cd7eac499fd2afa62d02d2764e

            SHA512

            414f2755f2999f8313d5b7386d6a67b7a98930cd4a0763b5d57f7c54a9fb9c51a323f9a2916aadfb42be120a6f1d83541a262a9d8ee0a389d0af70c9e3eac42b

          • C:\Windows\SysWOW64\hfpapi.dll

            Filesize

            241KB

            MD5

            49116d30416d6e4e03a241e1268df60e

            SHA1

            d414538c467ca61679ad0c3a0d3ad2967a1d9464

            SHA256

            120168ad301cc81ab751488b38458f1e194a57cd7eac499fd2afa62d02d2764e

            SHA512

            414f2755f2999f8313d5b7386d6a67b7a98930cd4a0763b5d57f7c54a9fb9c51a323f9a2916aadfb42be120a6f1d83541a262a9d8ee0a389d0af70c9e3eac42b

          • C:\Windows\SysWOW64\hfpapi.dll

            Filesize

            241KB

            MD5

            49116d30416d6e4e03a241e1268df60e

            SHA1

            d414538c467ca61679ad0c3a0d3ad2967a1d9464

            SHA256

            120168ad301cc81ab751488b38458f1e194a57cd7eac499fd2afa62d02d2764e

            SHA512

            414f2755f2999f8313d5b7386d6a67b7a98930cd4a0763b5d57f7c54a9fb9c51a323f9a2916aadfb42be120a6f1d83541a262a9d8ee0a389d0af70c9e3eac42b

          • C:\Windows\SysWOW64\installd.exe

            Filesize

            108KB

            MD5

            065457158fabf42e92a758f238e716e8

            SHA1

            b45921cdbdc29064fa6a7daa7f619b4be233764f

            SHA256

            71e86777789ebcd391f702107b567b696da5564924c49e25554b6f763ccefb89

            SHA512

            5bad6205959c161a328966084c6cd5490292cbe00768c059801625d8157c17d194950e105fd73c8d7edcec5ccaa683f72c13502e76843337f08f96158e95c340

          • C:\Windows\SysWOW64\installd.exe

            Filesize

            108KB

            MD5

            065457158fabf42e92a758f238e716e8

            SHA1

            b45921cdbdc29064fa6a7daa7f619b4be233764f

            SHA256

            71e86777789ebcd391f702107b567b696da5564924c49e25554b6f763ccefb89

            SHA512

            5bad6205959c161a328966084c6cd5490292cbe00768c059801625d8157c17d194950e105fd73c8d7edcec5ccaa683f72c13502e76843337f08f96158e95c340

          • C:\Windows\SysWOW64\nethtsrv.exe

            Filesize

            176KB

            MD5

            e720b742121a4209fff9e2486ed8f369

            SHA1

            0cf39f7c5323b89c8c32d7beae2ee4001fc51e8b

            SHA256

            8a0d184b1bb62459495644b2815df6c2ef981e04cb3099ced8ecc6b35372a33a

            SHA512

            a6f3dac321191471ff9d70e262789ee975f23c7fa63e738e029b85feff3d350d4ac64eeefcdb6f416c74f30598caecf3d221de7c30e7a4a20ee8118eae602640

          • C:\Windows\SysWOW64\nethtsrv.exe

            Filesize

            176KB

            MD5

            e720b742121a4209fff9e2486ed8f369

            SHA1

            0cf39f7c5323b89c8c32d7beae2ee4001fc51e8b

            SHA256

            8a0d184b1bb62459495644b2815df6c2ef981e04cb3099ced8ecc6b35372a33a

            SHA512

            a6f3dac321191471ff9d70e262789ee975f23c7fa63e738e029b85feff3d350d4ac64eeefcdb6f416c74f30598caecf3d221de7c30e7a4a20ee8118eae602640

          • C:\Windows\SysWOW64\nethtsrv.exe

            Filesize

            176KB

            MD5

            e720b742121a4209fff9e2486ed8f369

            SHA1

            0cf39f7c5323b89c8c32d7beae2ee4001fc51e8b

            SHA256

            8a0d184b1bb62459495644b2815df6c2ef981e04cb3099ced8ecc6b35372a33a

            SHA512

            a6f3dac321191471ff9d70e262789ee975f23c7fa63e738e029b85feff3d350d4ac64eeefcdb6f416c74f30598caecf3d221de7c30e7a4a20ee8118eae602640

          • C:\Windows\SysWOW64\netupdsrv.exe

            Filesize

            158KB

            MD5

            bb23dccacd4c46fb1ed3e85f24d7809f

            SHA1

            1b80b3aa8305c494b900a7854f73805dcc1a3c46

            SHA256

            2b00231910cd82e2c24c2bba594b198fb5c83370743cb6536cb50d69a484d828

            SHA512

            fca0cc941647f8e72f9c2af7cd3ee3e65f2a8f73ac8dd61ebf1c4e80c60a7d4284e9e95ff0ed42f1a266ece516b2120ec3cc07ed750ebb1833418223acbd1f01

          • C:\Windows\SysWOW64\netupdsrv.exe

            Filesize

            158KB

            MD5

            bb23dccacd4c46fb1ed3e85f24d7809f

            SHA1

            1b80b3aa8305c494b900a7854f73805dcc1a3c46

            SHA256

            2b00231910cd82e2c24c2bba594b198fb5c83370743cb6536cb50d69a484d828

            SHA512

            fca0cc941647f8e72f9c2af7cd3ee3e65f2a8f73ac8dd61ebf1c4e80c60a7d4284e9e95ff0ed42f1a266ece516b2120ec3cc07ed750ebb1833418223acbd1f01

          • C:\Windows\SysWOW64\netupdsrv.exe

            Filesize

            158KB

            MD5

            bb23dccacd4c46fb1ed3e85f24d7809f

            SHA1

            1b80b3aa8305c494b900a7854f73805dcc1a3c46

            SHA256

            2b00231910cd82e2c24c2bba594b198fb5c83370743cb6536cb50d69a484d828

            SHA512

            fca0cc941647f8e72f9c2af7cd3ee3e65f2a8f73ac8dd61ebf1c4e80c60a7d4284e9e95ff0ed42f1a266ece516b2120ec3cc07ed750ebb1833418223acbd1f01

          • memory/204-140-0x0000000000000000-mapping.dmp

          • memory/816-137-0x0000000000000000-mapping.dmp

          • memory/1348-160-0x0000000000000000-mapping.dmp

          • memory/1440-166-0x0000000000000000-mapping.dmp

          • memory/2096-148-0x0000000000000000-mapping.dmp

          • memory/2232-167-0x0000000000000000-mapping.dmp

          • memory/2304-159-0x0000000000000000-mapping.dmp

          • memory/2840-141-0x0000000000000000-mapping.dmp

          • memory/3392-143-0x0000000000000000-mapping.dmp

          • memory/3456-136-0x0000000000000000-mapping.dmp

          • memory/4068-142-0x0000000000360000-0x00000000007BE000-memory.dmp

            Filesize

            4.4MB

          • memory/4068-132-0x0000000000360000-0x00000000007BE000-memory.dmp

            Filesize

            4.4MB

          • memory/4068-169-0x0000000000360000-0x00000000007BE000-memory.dmp

            Filesize

            4.4MB

          • memory/4852-154-0x0000000000000000-mapping.dmp