Analysis

  • max time kernel
    43s
  • max time network
    49s
  • platform
    windows7_x64
  • resource
    win7-20220901-en
  • resource tags

    arch:x64arch:x86image:win7-20220901-enlocale:en-usos:windows7-x64system
  • submitted
    24/11/2022, 05:40

General

  • Target

    5726513dddf413093635de5a475b6c7872db1cd18e048e19aaff9431525a66ad.exe

  • Size

    601KB

  • MD5

    afc0b1847b3fa3497410dd1fb81622d1

  • SHA1

    053c2a691edb2826287b4b5406fcd2d538f095fc

  • SHA256

    5726513dddf413093635de5a475b6c7872db1cd18e048e19aaff9431525a66ad

  • SHA512

    9d57a2228be45efc9479a657c8e9f3fd0fadc63e96640df41453a922797151a6b6e81ebface18772051b3db1a077d8733f5e1210dd427c183b757ad7dfbccf35

  • SSDEEP

    12288:WIny5DYTtWxrtf27CJ08dO0SlCi5y1VEGhV8tJpUV5PbO:YUTtWxBd08mQVV8lUV5K

Score
8/10

Malware Config

Signatures

  • Drops file in Drivers directory 1 IoCs
  • Executes dropped EXE 5 IoCs
  • Loads dropped DLL 13 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.

  • Runs net.exe
  • Suspicious behavior: LoadsDriver 1 IoCs
  • Suspicious use of AdjustPrivilegeToken 1 IoCs
  • Suspicious use of WriteProcessMemory 50 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\5726513dddf413093635de5a475b6c7872db1cd18e048e19aaff9431525a66ad.exe
    "C:\Users\Admin\AppData\Local\Temp\5726513dddf413093635de5a475b6c7872db1cd18e048e19aaff9431525a66ad.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:1388
    • C:\Windows\SysWOW64\net.exe
      net stop nethttpservice
      2⤵
      • Suspicious use of WriteProcessMemory
      PID:760
      • C:\Windows\SysWOW64\net1.exe
        C:\Windows\system32\net1 stop nethttpservice
        3⤵
          PID:1100
      • C:\Windows\SysWOW64\net.exe
        net stop serviceupdater
        2⤵
        • Suspicious use of WriteProcessMemory
        PID:1908
        • C:\Windows\SysWOW64\net1.exe
          C:\Windows\system32\net1 stop serviceupdater
          3⤵
            PID:368
        • C:\Windows\SysWOW64\installd.exe
          "C:\Windows\system32\installd.exe" nethfdrv
          2⤵
          • Executes dropped EXE
          • Loads dropped DLL
          PID:1256
        • C:\Windows\SysWOW64\nethtsrv.exe
          "C:\Windows\system32\nethtsrv.exe" -nfdi
          2⤵
          • Executes dropped EXE
          • Loads dropped DLL
          PID:1888
        • C:\Windows\SysWOW64\netupdsrv.exe
          "C:\Windows\system32\netupdsrv.exe" -nfdi
          2⤵
          • Executes dropped EXE
          PID:1280
        • C:\Windows\SysWOW64\net.exe
          net start nethttpservice
          2⤵
          • Suspicious use of WriteProcessMemory
          PID:1228
          • C:\Windows\SysWOW64\net1.exe
            C:\Windows\system32\net1 start nethttpservice
            3⤵
              PID:396
          • C:\Windows\SysWOW64\net.exe
            net start serviceupdater
            2⤵
            • Suspicious use of WriteProcessMemory
            PID:1356
            • C:\Windows\SysWOW64\net1.exe
              C:\Windows\system32\net1 start serviceupdater
              3⤵
                PID:604
          • C:\Windows\SysWOW64\nethtsrv.exe
            C:\Windows\SysWOW64\nethtsrv.exe
            1⤵
            • Executes dropped EXE
            • Loads dropped DLL
            • Suspicious use of AdjustPrivilegeToken
            PID:1544
          • C:\Windows\SysWOW64\netupdsrv.exe
            C:\Windows\SysWOW64\netupdsrv.exe
            1⤵
            • Executes dropped EXE
            PID:1000

          Network

                MITRE ATT&CK Enterprise v6

                Replay Monitor

                Loading Replay Monitor...

                Downloads

                • C:\Windows\SysWOW64\hfnapi.dll

                  Filesize

                  106KB

                  MD5

                  ec0a978379c57113b2e66ce1925d0543

                  SHA1

                  5a1463f4c0dab2def960bb7f7796afa766601b05

                  SHA256

                  c016b073e62965125f1e86862775c2f99b7ff845a0ee3ec07db5004f5c988fdd

                  SHA512

                  34e00827ff8d5a20d68ff620be7404f68f88c17eba5f8bb9ea5ce5ab7c16cb2c48b196384b6b8e2b43f3843febb7b8eb695ca48d6977c613bf23a418abe0b950

                • C:\Windows\SysWOW64\hfpapi.dll

                  Filesize

                  241KB

                  MD5

                  18e38e6281a46c79723a5d89e6ca3967

                  SHA1

                  ff313b1a74592185ec3022b5b69aeb1177d6d21a

                  SHA256

                  5302055a4600e267378a7ca2c0bd5253f55de63209bf64fbe15a69720d244c72

                  SHA512

                  3fd4af0878d524519242de20fa7c9e59ee84f3f9b8320a129651c2c95f751ef4c495217ec21e66d9803517661560565527dbecba3830bfd2dedfb777951449c1

                • C:\Windows\SysWOW64\installd.exe

                  Filesize

                  108KB

                  MD5

                  03d42cf1be47be1826e61bd6b152bffa

                  SHA1

                  878655aebd8657315bf6b59a3c6aca824b47f25b

                  SHA256

                  413bd9e53547bcb570fa1f65ff633d260ff7db42f79c773f93484ca784dabf76

                  SHA512

                  0d471166f63bd26f71e6995e6853f724e443113d25d863b047ad7dfd766931c2b31cb08871dfe47d67c8c4ff6a8e20a82148d3515a7f837e24f569e8ba1df275

                • C:\Windows\SysWOW64\nethtsrv.exe

                  Filesize

                  176KB

                  MD5

                  dada897362bcc55bc3a5cce5e83a9ab3

                  SHA1

                  a4471b3c56aca169817f1e695aac9f8d80f9dcdd

                  SHA256

                  f639ccb21f8900b07b4812d51660a8f8792def96b48151e2d05d0791926898e1

                  SHA512

                  7232eb90e453b0580b9199d4457d139992c5c5739050f2ae9494783f3d3a22efef903624ba109d733c2bd4cdbac3a3880004bcaa544b0017b83634695654a506

                • C:\Windows\SysWOW64\nethtsrv.exe

                  Filesize

                  176KB

                  MD5

                  dada897362bcc55bc3a5cce5e83a9ab3

                  SHA1

                  a4471b3c56aca169817f1e695aac9f8d80f9dcdd

                  SHA256

                  f639ccb21f8900b07b4812d51660a8f8792def96b48151e2d05d0791926898e1

                  SHA512

                  7232eb90e453b0580b9199d4457d139992c5c5739050f2ae9494783f3d3a22efef903624ba109d733c2bd4cdbac3a3880004bcaa544b0017b83634695654a506

                • C:\Windows\SysWOW64\netupdsrv.exe

                  Filesize

                  158KB

                  MD5

                  103fa779c481dcf7f69bef43d5d8c819

                  SHA1

                  7ff0d8b50121d1d9f3ccd271cb93f761e89852bb

                  SHA256

                  4c629a8ef3c7aa0d39a7385546928179587d60feb45a42a0f4f29c4b48439d09

                  SHA512

                  1f7ccfe578034c63d87d0bb2b5b7eb32ed4aac5e913c14a2fe392457d58987c211192e72e8ddac3d4515d991163d9fee27114839e1644c7aea4d3775ec57395d

                • C:\Windows\SysWOW64\netupdsrv.exe

                  Filesize

                  158KB

                  MD5

                  103fa779c481dcf7f69bef43d5d8c819

                  SHA1

                  7ff0d8b50121d1d9f3ccd271cb93f761e89852bb

                  SHA256

                  4c629a8ef3c7aa0d39a7385546928179587d60feb45a42a0f4f29c4b48439d09

                  SHA512

                  1f7ccfe578034c63d87d0bb2b5b7eb32ed4aac5e913c14a2fe392457d58987c211192e72e8ddac3d4515d991163d9fee27114839e1644c7aea4d3775ec57395d

                • \Users\Admin\AppData\Local\Temp\nsoD1E.tmp\System.dll

                  Filesize

                  11KB

                  MD5

                  c17103ae9072a06da581dec998343fc1

                  SHA1

                  b72148c6bdfaada8b8c3f950e610ee7cf1da1f8d

                  SHA256

                  dc58d8ad81cacb0c1ed72e33bff8f23ea40b5252b5bb55d393a0903e6819ae2f

                  SHA512

                  d32a71aaef18e993f28096d536e41c4d016850721b31171513ce28bbd805a54fd290b7c3e9d935f72e676a1acfb4f0dcc89d95040a0dd29f2b6975855c18986f

                • \Users\Admin\AppData\Local\Temp\nsoD1E.tmp\nsExec.dll

                  Filesize

                  6KB

                  MD5

                  acc2b699edfea5bf5aae45aba3a41e96

                  SHA1

                  d2accf4d494e43ceb2cff69abe4dd17147d29cc2

                  SHA256

                  168a974eaa3f588d759db3f47c1a9fdc3494ba1fa1a73a84e5e3b2a4d58abd7e

                  SHA512

                  e29ea10ada98c71a18273b04f44f385b120d4e8473e441ce5748cfa44a23648814f2656f429b85440157988c88de776c6ac008dc38bf09cbb746c230a46c69fe

                • \Users\Admin\AppData\Local\Temp\nsoD1E.tmp\nsExec.dll

                  Filesize

                  6KB

                  MD5

                  acc2b699edfea5bf5aae45aba3a41e96

                  SHA1

                  d2accf4d494e43ceb2cff69abe4dd17147d29cc2

                  SHA256

                  168a974eaa3f588d759db3f47c1a9fdc3494ba1fa1a73a84e5e3b2a4d58abd7e

                  SHA512

                  e29ea10ada98c71a18273b04f44f385b120d4e8473e441ce5748cfa44a23648814f2656f429b85440157988c88de776c6ac008dc38bf09cbb746c230a46c69fe

                • \Users\Admin\AppData\Local\Temp\nsoD1E.tmp\nsExec.dll

                  Filesize

                  6KB

                  MD5

                  acc2b699edfea5bf5aae45aba3a41e96

                  SHA1

                  d2accf4d494e43ceb2cff69abe4dd17147d29cc2

                  SHA256

                  168a974eaa3f588d759db3f47c1a9fdc3494ba1fa1a73a84e5e3b2a4d58abd7e

                  SHA512

                  e29ea10ada98c71a18273b04f44f385b120d4e8473e441ce5748cfa44a23648814f2656f429b85440157988c88de776c6ac008dc38bf09cbb746c230a46c69fe

                • \Users\Admin\AppData\Local\Temp\nsoD1E.tmp\nsExec.dll

                  Filesize

                  6KB

                  MD5

                  acc2b699edfea5bf5aae45aba3a41e96

                  SHA1

                  d2accf4d494e43ceb2cff69abe4dd17147d29cc2

                  SHA256

                  168a974eaa3f588d759db3f47c1a9fdc3494ba1fa1a73a84e5e3b2a4d58abd7e

                  SHA512

                  e29ea10ada98c71a18273b04f44f385b120d4e8473e441ce5748cfa44a23648814f2656f429b85440157988c88de776c6ac008dc38bf09cbb746c230a46c69fe

                • \Windows\SysWOW64\hfnapi.dll

                  Filesize

                  106KB

                  MD5

                  ec0a978379c57113b2e66ce1925d0543

                  SHA1

                  5a1463f4c0dab2def960bb7f7796afa766601b05

                  SHA256

                  c016b073e62965125f1e86862775c2f99b7ff845a0ee3ec07db5004f5c988fdd

                  SHA512

                  34e00827ff8d5a20d68ff620be7404f68f88c17eba5f8bb9ea5ce5ab7c16cb2c48b196384b6b8e2b43f3843febb7b8eb695ca48d6977c613bf23a418abe0b950

                • \Windows\SysWOW64\hfnapi.dll

                  Filesize

                  106KB

                  MD5

                  ec0a978379c57113b2e66ce1925d0543

                  SHA1

                  5a1463f4c0dab2def960bb7f7796afa766601b05

                  SHA256

                  c016b073e62965125f1e86862775c2f99b7ff845a0ee3ec07db5004f5c988fdd

                  SHA512

                  34e00827ff8d5a20d68ff620be7404f68f88c17eba5f8bb9ea5ce5ab7c16cb2c48b196384b6b8e2b43f3843febb7b8eb695ca48d6977c613bf23a418abe0b950

                • \Windows\SysWOW64\hfnapi.dll

                  Filesize

                  106KB

                  MD5

                  ec0a978379c57113b2e66ce1925d0543

                  SHA1

                  5a1463f4c0dab2def960bb7f7796afa766601b05

                  SHA256

                  c016b073e62965125f1e86862775c2f99b7ff845a0ee3ec07db5004f5c988fdd

                  SHA512

                  34e00827ff8d5a20d68ff620be7404f68f88c17eba5f8bb9ea5ce5ab7c16cb2c48b196384b6b8e2b43f3843febb7b8eb695ca48d6977c613bf23a418abe0b950

                • \Windows\SysWOW64\hfpapi.dll

                  Filesize

                  241KB

                  MD5

                  18e38e6281a46c79723a5d89e6ca3967

                  SHA1

                  ff313b1a74592185ec3022b5b69aeb1177d6d21a

                  SHA256

                  5302055a4600e267378a7ca2c0bd5253f55de63209bf64fbe15a69720d244c72

                  SHA512

                  3fd4af0878d524519242de20fa7c9e59ee84f3f9b8320a129651c2c95f751ef4c495217ec21e66d9803517661560565527dbecba3830bfd2dedfb777951449c1

                • \Windows\SysWOW64\hfpapi.dll

                  Filesize

                  241KB

                  MD5

                  18e38e6281a46c79723a5d89e6ca3967

                  SHA1

                  ff313b1a74592185ec3022b5b69aeb1177d6d21a

                  SHA256

                  5302055a4600e267378a7ca2c0bd5253f55de63209bf64fbe15a69720d244c72

                  SHA512

                  3fd4af0878d524519242de20fa7c9e59ee84f3f9b8320a129651c2c95f751ef4c495217ec21e66d9803517661560565527dbecba3830bfd2dedfb777951449c1

                • \Windows\SysWOW64\installd.exe

                  Filesize

                  108KB

                  MD5

                  03d42cf1be47be1826e61bd6b152bffa

                  SHA1

                  878655aebd8657315bf6b59a3c6aca824b47f25b

                  SHA256

                  413bd9e53547bcb570fa1f65ff633d260ff7db42f79c773f93484ca784dabf76

                  SHA512

                  0d471166f63bd26f71e6995e6853f724e443113d25d863b047ad7dfd766931c2b31cb08871dfe47d67c8c4ff6a8e20a82148d3515a7f837e24f569e8ba1df275

                • \Windows\SysWOW64\nethtsrv.exe

                  Filesize

                  176KB

                  MD5

                  dada897362bcc55bc3a5cce5e83a9ab3

                  SHA1

                  a4471b3c56aca169817f1e695aac9f8d80f9dcdd

                  SHA256

                  f639ccb21f8900b07b4812d51660a8f8792def96b48151e2d05d0791926898e1

                  SHA512

                  7232eb90e453b0580b9199d4457d139992c5c5739050f2ae9494783f3d3a22efef903624ba109d733c2bd4cdbac3a3880004bcaa544b0017b83634695654a506

                • \Windows\SysWOW64\netupdsrv.exe

                  Filesize

                  158KB

                  MD5

                  103fa779c481dcf7f69bef43d5d8c819

                  SHA1

                  7ff0d8b50121d1d9f3ccd271cb93f761e89852bb

                  SHA256

                  4c629a8ef3c7aa0d39a7385546928179587d60feb45a42a0f4f29c4b48439d09

                  SHA512

                  1f7ccfe578034c63d87d0bb2b5b7eb32ed4aac5e913c14a2fe392457d58987c211192e72e8ddac3d4515d991163d9fee27114839e1644c7aea4d3775ec57395d

                • memory/1388-54-0x0000000075711000-0x0000000075713000-memory.dmp

                  Filesize

                  8KB

                • memory/1388-56-0x0000000000360000-0x00000000007BE000-memory.dmp

                  Filesize

                  4.4MB

                • memory/1388-90-0x0000000000360000-0x00000000007BE000-memory.dmp

                  Filesize

                  4.4MB