Analysis

  • max time kernel
    134s
  • max time network
    151s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20220812-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20220812-enlocale:en-usos:windows10-2004-x64system
  • submitted
    22/11/2022, 00:23

General

  • Target

    567b666640e7e04b456a15b32d5d0e5bf0bfb1c92eaf771180021410cdbaea42.exe

  • Size

    695KB

  • MD5

    403a83d95259c8bb1a79663b4b93611f

  • SHA1

    730a7f172eb3e5198b1ebdeda2e01518cbbbdb11

  • SHA256

    567b666640e7e04b456a15b32d5d0e5bf0bfb1c92eaf771180021410cdbaea42

  • SHA512

    3c0c948ef48f31fcac4ea3f00e183730b5b37b67184d608cde0e0b68dd56969bf5714b2470a9b348115a042666a0b31781fc10438e65675bc858c3bb6f7e23f9

  • SSDEEP

    12288:UAbu3fQ+thk6Ezmbf1fcbu8EPaUBr+dEqmK4aUjkfiAPIJucsKR4V0D+F:UAbuPPEzqfGbLUBnFKBZaAP0sNV0D+F

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\567b666640e7e04b456a15b32d5d0e5bf0bfb1c92eaf771180021410cdbaea42.exe
    "C:\Users\Admin\AppData\Local\Temp\567b666640e7e04b456a15b32d5d0e5bf0bfb1c92eaf771180021410cdbaea42.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:1112
    • C:\Windows\SysWOW64\net.exe
      net stop nethttpservice
      2⤵
      • Suspicious use of WriteProcessMemory
      PID:1916
      • C:\Windows\SysWOW64\net1.exe
        C:\Windows\system32\net1 stop nethttpservice
        3⤵
          PID:3104
      • C:\Windows\SysWOW64\net.exe
        net stop serviceupdater
        2⤵
        • Suspicious use of WriteProcessMemory
        PID:2284
        • C:\Windows\SysWOW64\net1.exe
          C:\Windows\system32\net1 stop serviceupdater
          3⤵
            PID:4912
        • C:\Windows\SysWOW64\installd.exe
          "C:\Windows\system32\installd.exe" nethfdrv
          2⤵
          • Executes dropped EXE
          • Loads dropped DLL
          PID:4500
        • C:\Windows\SysWOW64\nethtsrv.exe
          "C:\Windows\system32\nethtsrv.exe" -nfdi
          2⤵
          • Executes dropped EXE
          • Loads dropped DLL
          PID:4264
        • C:\Windows\SysWOW64\netupdsrv.exe
          "C:\Windows\system32\netupdsrv.exe" -nfdi
          2⤵
          • Executes dropped EXE
          PID:4312
        • C:\Windows\SysWOW64\net.exe
          net start nethttpservice
          2⤵
          • Suspicious use of WriteProcessMemory
          PID:2604
          • C:\Windows\SysWOW64\net1.exe
            C:\Windows\system32\net1 start nethttpservice
            3⤵
              PID:4244
          • C:\Windows\SysWOW64\net.exe
            net start serviceupdater
            2⤵
            • Suspicious use of WriteProcessMemory
            PID:1996
            • C:\Windows\SysWOW64\net1.exe
              C:\Windows\system32\net1 start serviceupdater
              3⤵
                PID:1240
          • 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:4188
          • C:\Windows\SysWOW64\netupdsrv.exe
            C:\Windows\SysWOW64\netupdsrv.exe
            1⤵
            • Executes dropped EXE
            PID:2692

          Network

                MITRE ATT&CK Enterprise v6

                Replay Monitor

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                Downloads

                • C:\Users\Admin\AppData\Local\Temp\nsv960D.tmp\System.dll

                  Filesize

                  11KB

                  MD5

                  c17103ae9072a06da581dec998343fc1

                  SHA1

                  b72148c6bdfaada8b8c3f950e610ee7cf1da1f8d

                  SHA256

                  dc58d8ad81cacb0c1ed72e33bff8f23ea40b5252b5bb55d393a0903e6819ae2f

                  SHA512

                  d32a71aaef18e993f28096d536e41c4d016850721b31171513ce28bbd805a54fd290b7c3e9d935f72e676a1acfb4f0dcc89d95040a0dd29f2b6975855c18986f

                • C:\Users\Admin\AppData\Local\Temp\nsv960D.tmp\nsExec.dll

                  Filesize

                  6KB

                  MD5

                  acc2b699edfea5bf5aae45aba3a41e96

                  SHA1

                  d2accf4d494e43ceb2cff69abe4dd17147d29cc2

                  SHA256

                  168a974eaa3f588d759db3f47c1a9fdc3494ba1fa1a73a84e5e3b2a4d58abd7e

                  SHA512

                  e29ea10ada98c71a18273b04f44f385b120d4e8473e441ce5748cfa44a23648814f2656f429b85440157988c88de776c6ac008dc38bf09cbb746c230a46c69fe

                • C:\Users\Admin\AppData\Local\Temp\nsv960D.tmp\nsExec.dll

                  Filesize

                  6KB

                  MD5

                  acc2b699edfea5bf5aae45aba3a41e96

                  SHA1

                  d2accf4d494e43ceb2cff69abe4dd17147d29cc2

                  SHA256

                  168a974eaa3f588d759db3f47c1a9fdc3494ba1fa1a73a84e5e3b2a4d58abd7e

                  SHA512

                  e29ea10ada98c71a18273b04f44f385b120d4e8473e441ce5748cfa44a23648814f2656f429b85440157988c88de776c6ac008dc38bf09cbb746c230a46c69fe

                • C:\Users\Admin\AppData\Local\Temp\nsv960D.tmp\nsExec.dll

                  Filesize

                  6KB

                  MD5

                  acc2b699edfea5bf5aae45aba3a41e96

                  SHA1

                  d2accf4d494e43ceb2cff69abe4dd17147d29cc2

                  SHA256

                  168a974eaa3f588d759db3f47c1a9fdc3494ba1fa1a73a84e5e3b2a4d58abd7e

                  SHA512

                  e29ea10ada98c71a18273b04f44f385b120d4e8473e441ce5748cfa44a23648814f2656f429b85440157988c88de776c6ac008dc38bf09cbb746c230a46c69fe

                • C:\Users\Admin\AppData\Local\Temp\nsv960D.tmp\nsExec.dll

                  Filesize

                  6KB

                  MD5

                  acc2b699edfea5bf5aae45aba3a41e96

                  SHA1

                  d2accf4d494e43ceb2cff69abe4dd17147d29cc2

                  SHA256

                  168a974eaa3f588d759db3f47c1a9fdc3494ba1fa1a73a84e5e3b2a4d58abd7e

                  SHA512

                  e29ea10ada98c71a18273b04f44f385b120d4e8473e441ce5748cfa44a23648814f2656f429b85440157988c88de776c6ac008dc38bf09cbb746c230a46c69fe

                • C:\Users\Admin\AppData\Local\Temp\nsv960D.tmp\nsExec.dll

                  Filesize

                  6KB

                  MD5

                  acc2b699edfea5bf5aae45aba3a41e96

                  SHA1

                  d2accf4d494e43ceb2cff69abe4dd17147d29cc2

                  SHA256

                  168a974eaa3f588d759db3f47c1a9fdc3494ba1fa1a73a84e5e3b2a4d58abd7e

                  SHA512

                  e29ea10ada98c71a18273b04f44f385b120d4e8473e441ce5748cfa44a23648814f2656f429b85440157988c88de776c6ac008dc38bf09cbb746c230a46c69fe

                • C:\Users\Admin\AppData\Local\Temp\nsv960D.tmp\nsExec.dll

                  Filesize

                  6KB

                  MD5

                  acc2b699edfea5bf5aae45aba3a41e96

                  SHA1

                  d2accf4d494e43ceb2cff69abe4dd17147d29cc2

                  SHA256

                  168a974eaa3f588d759db3f47c1a9fdc3494ba1fa1a73a84e5e3b2a4d58abd7e

                  SHA512

                  e29ea10ada98c71a18273b04f44f385b120d4e8473e441ce5748cfa44a23648814f2656f429b85440157988c88de776c6ac008dc38bf09cbb746c230a46c69fe

                • C:\Users\Admin\AppData\Local\Temp\nsv960D.tmp\nsExec.dll

                  Filesize

                  6KB

                  MD5

                  acc2b699edfea5bf5aae45aba3a41e96

                  SHA1

                  d2accf4d494e43ceb2cff69abe4dd17147d29cc2

                  SHA256

                  168a974eaa3f588d759db3f47c1a9fdc3494ba1fa1a73a84e5e3b2a4d58abd7e

                  SHA512

                  e29ea10ada98c71a18273b04f44f385b120d4e8473e441ce5748cfa44a23648814f2656f429b85440157988c88de776c6ac008dc38bf09cbb746c230a46c69fe

                • C:\Users\Admin\AppData\Local\Temp\nsv960D.tmp\nsExec.dll

                  Filesize

                  6KB

                  MD5

                  acc2b699edfea5bf5aae45aba3a41e96

                  SHA1

                  d2accf4d494e43ceb2cff69abe4dd17147d29cc2

                  SHA256

                  168a974eaa3f588d759db3f47c1a9fdc3494ba1fa1a73a84e5e3b2a4d58abd7e

                  SHA512

                  e29ea10ada98c71a18273b04f44f385b120d4e8473e441ce5748cfa44a23648814f2656f429b85440157988c88de776c6ac008dc38bf09cbb746c230a46c69fe

                • C:\Windows\SysWOW64\hfnapi.dll

                  Filesize

                  106KB

                  MD5

                  bf3b3ecbf6fb5a2f5e5b62f9a8543b3c

                  SHA1

                  656f33cf0010f0314b43221920b701cc16acbea7

                  SHA256

                  b0e9a33e2c0df77c23b2771bdeae963978d7016327942ef4003423f6a313ad8b

                  SHA512

                  7abfe5499f4f4dc94f3f1b125e727d985cecf603161a495a5c0da3835846466326c72aec50a441b656106d209721a10fdac7ea5c31067fa7d5db9c8b353f431f

                • C:\Windows\SysWOW64\hfnapi.dll

                  Filesize

                  106KB

                  MD5

                  bf3b3ecbf6fb5a2f5e5b62f9a8543b3c

                  SHA1

                  656f33cf0010f0314b43221920b701cc16acbea7

                  SHA256

                  b0e9a33e2c0df77c23b2771bdeae963978d7016327942ef4003423f6a313ad8b

                  SHA512

                  7abfe5499f4f4dc94f3f1b125e727d985cecf603161a495a5c0da3835846466326c72aec50a441b656106d209721a10fdac7ea5c31067fa7d5db9c8b353f431f

                • C:\Windows\SysWOW64\hfnapi.dll

                  Filesize

                  106KB

                  MD5

                  bf3b3ecbf6fb5a2f5e5b62f9a8543b3c

                  SHA1

                  656f33cf0010f0314b43221920b701cc16acbea7

                  SHA256

                  b0e9a33e2c0df77c23b2771bdeae963978d7016327942ef4003423f6a313ad8b

                  SHA512

                  7abfe5499f4f4dc94f3f1b125e727d985cecf603161a495a5c0da3835846466326c72aec50a441b656106d209721a10fdac7ea5c31067fa7d5db9c8b353f431f

                • C:\Windows\SysWOW64\hfnapi.dll

                  Filesize

                  106KB

                  MD5

                  bf3b3ecbf6fb5a2f5e5b62f9a8543b3c

                  SHA1

                  656f33cf0010f0314b43221920b701cc16acbea7

                  SHA256

                  b0e9a33e2c0df77c23b2771bdeae963978d7016327942ef4003423f6a313ad8b

                  SHA512

                  7abfe5499f4f4dc94f3f1b125e727d985cecf603161a495a5c0da3835846466326c72aec50a441b656106d209721a10fdac7ea5c31067fa7d5db9c8b353f431f

                • C:\Windows\SysWOW64\hfpapi.dll

                  Filesize

                  241KB

                  MD5

                  64b3f7074c2de357f1c282a8c68a254d

                  SHA1

                  98c271954395a056cdd63d47569e9c1995ed1448

                  SHA256

                  2a4ff4f74aa615ccc0f3a4259ab3e02a8915bb36e2663933806b49a063a99c7a

                  SHA512

                  c8a2d745a123fbf1523bd9e993e8a507b27104e0247b3f76a40f549ea9841849b5f7a75963c6e45546b7dd0cea00d35b5fbea933ed4d711c5f712f2820170e91

                • C:\Windows\SysWOW64\hfpapi.dll

                  Filesize

                  241KB

                  MD5

                  64b3f7074c2de357f1c282a8c68a254d

                  SHA1

                  98c271954395a056cdd63d47569e9c1995ed1448

                  SHA256

                  2a4ff4f74aa615ccc0f3a4259ab3e02a8915bb36e2663933806b49a063a99c7a

                  SHA512

                  c8a2d745a123fbf1523bd9e993e8a507b27104e0247b3f76a40f549ea9841849b5f7a75963c6e45546b7dd0cea00d35b5fbea933ed4d711c5f712f2820170e91

                • C:\Windows\SysWOW64\hfpapi.dll

                  Filesize

                  241KB

                  MD5

                  64b3f7074c2de357f1c282a8c68a254d

                  SHA1

                  98c271954395a056cdd63d47569e9c1995ed1448

                  SHA256

                  2a4ff4f74aa615ccc0f3a4259ab3e02a8915bb36e2663933806b49a063a99c7a

                  SHA512

                  c8a2d745a123fbf1523bd9e993e8a507b27104e0247b3f76a40f549ea9841849b5f7a75963c6e45546b7dd0cea00d35b5fbea933ed4d711c5f712f2820170e91

                • C:\Windows\SysWOW64\installd.exe

                  Filesize

                  108KB

                  MD5

                  f1ed575a06ec4c7162baec70fcf3da06

                  SHA1

                  c75869bd6bcb45bcabbc39a881627552a544411d

                  SHA256

                  a0c0e52ab3d32e0e0bc69bb084b6ed66eb9afbcce146bb052a0f105e89316be7

                  SHA512

                  140597baa03a000af3fd98b9aefaa34cd77e4099a0735daf469bf3b3773f2c7075229321626eedf7eed80d962f0c53c0a498c29616bfa28c6756b8d326cea444

                • C:\Windows\SysWOW64\installd.exe

                  Filesize

                  108KB

                  MD5

                  f1ed575a06ec4c7162baec70fcf3da06

                  SHA1

                  c75869bd6bcb45bcabbc39a881627552a544411d

                  SHA256

                  a0c0e52ab3d32e0e0bc69bb084b6ed66eb9afbcce146bb052a0f105e89316be7

                  SHA512

                  140597baa03a000af3fd98b9aefaa34cd77e4099a0735daf469bf3b3773f2c7075229321626eedf7eed80d962f0c53c0a498c29616bfa28c6756b8d326cea444

                • C:\Windows\SysWOW64\nethtsrv.exe

                  Filesize

                  176KB

                  MD5

                  e67a9d59e374b46d80db5fde6d66677e

                  SHA1

                  dd797127b517b7e5ec9684e1a473977489805e03

                  SHA256

                  e328061dbe0f896bc51a70ce76cc9f7487ef47577e781cf556b8af43c90cc249

                  SHA512

                  8d24c6f66517b9851c3df7d354dcb48797525e07ecd6f246eb6d1581478f388f7fa0f0e22dcdaafff7dec1d344f56158eb5bec38f6984822201b08f7fd66b834

                • C:\Windows\SysWOW64\nethtsrv.exe

                  Filesize

                  176KB

                  MD5

                  e67a9d59e374b46d80db5fde6d66677e

                  SHA1

                  dd797127b517b7e5ec9684e1a473977489805e03

                  SHA256

                  e328061dbe0f896bc51a70ce76cc9f7487ef47577e781cf556b8af43c90cc249

                  SHA512

                  8d24c6f66517b9851c3df7d354dcb48797525e07ecd6f246eb6d1581478f388f7fa0f0e22dcdaafff7dec1d344f56158eb5bec38f6984822201b08f7fd66b834

                • C:\Windows\SysWOW64\nethtsrv.exe

                  Filesize

                  176KB

                  MD5

                  e67a9d59e374b46d80db5fde6d66677e

                  SHA1

                  dd797127b517b7e5ec9684e1a473977489805e03

                  SHA256

                  e328061dbe0f896bc51a70ce76cc9f7487ef47577e781cf556b8af43c90cc249

                  SHA512

                  8d24c6f66517b9851c3df7d354dcb48797525e07ecd6f246eb6d1581478f388f7fa0f0e22dcdaafff7dec1d344f56158eb5bec38f6984822201b08f7fd66b834

                • C:\Windows\SysWOW64\netupdsrv.exe

                  Filesize

                  159KB

                  MD5

                  52fac93eb3a73a49d261593404bb61b1

                  SHA1

                  9f31c39949073306961c37abe41b24deebf52843

                  SHA256

                  339c23016c548c5fc2832c256de9559945cb7b6af09e2c18ffea2e91ffa3e620

                  SHA512

                  fd188169c3548b3a9fe4a9636af54783d36b548603086b3d2e36ea6fa898b7583282e655d06b718547fec4ddafe9200b0f2e2567bd90ee0dba95c7f6f6d74c55

                • C:\Windows\SysWOW64\netupdsrv.exe

                  Filesize

                  159KB

                  MD5

                  52fac93eb3a73a49d261593404bb61b1

                  SHA1

                  9f31c39949073306961c37abe41b24deebf52843

                  SHA256

                  339c23016c548c5fc2832c256de9559945cb7b6af09e2c18ffea2e91ffa3e620

                  SHA512

                  fd188169c3548b3a9fe4a9636af54783d36b548603086b3d2e36ea6fa898b7583282e655d06b718547fec4ddafe9200b0f2e2567bd90ee0dba95c7f6f6d74c55

                • C:\Windows\SysWOW64\netupdsrv.exe

                  Filesize

                  159KB

                  MD5

                  52fac93eb3a73a49d261593404bb61b1

                  SHA1

                  9f31c39949073306961c37abe41b24deebf52843

                  SHA256

                  339c23016c548c5fc2832c256de9559945cb7b6af09e2c18ffea2e91ffa3e620

                  SHA512

                  fd188169c3548b3a9fe4a9636af54783d36b548603086b3d2e36ea6fa898b7583282e655d06b718547fec4ddafe9200b0f2e2567bd90ee0dba95c7f6f6d74c55

                • memory/1112-168-0x0000000000340000-0x00000000007BE000-memory.dmp

                  Filesize

                  4.5MB

                • memory/1112-137-0x0000000000340000-0x00000000007BE000-memory.dmp

                  Filesize

                  4.5MB