Analysis

  • max time kernel
    76s
  • max time network
    35s
  • platform
    windows7_x64
  • resource
    win7-20221111-en
  • resource tags

    arch:x64arch:x86image:win7-20221111-enlocale:en-usos:windows7-x64system
  • submitted
    24/11/2022, 07:48

General

  • Target

    fc2e339295ceba7b186dc0a22b3c5b53a1042979b035bbdbfb76e67321270c78.exe

  • Size

    561KB

  • MD5

    ed6aafe9963f4d533b8366c8cd65cb68

  • SHA1

    276add84337c213b7923746e3e234892a0ace578

  • SHA256

    fc2e339295ceba7b186dc0a22b3c5b53a1042979b035bbdbfb76e67321270c78

  • SHA512

    8a8ea41b2cadcb8fdc6b022b4ddd331cc290929e4f0bca40aa77d2bde4c9eb3ca288a9cea316c3972b2e139bf5e245d6bff062e2ece8b2fed1a4fce8a3068473

  • SSDEEP

    12288:CPRYzEbfg7jh95uGAMJ7HwBAEfEpKHc7C922t20l3TV7BP6D:vzwfKN97AMJ7uNsigIRlDV

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\fc2e339295ceba7b186dc0a22b3c5b53a1042979b035bbdbfb76e67321270c78.exe
    "C:\Users\Admin\AppData\Local\Temp\fc2e339295ceba7b186dc0a22b3c5b53a1042979b035bbdbfb76e67321270c78.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:1192
    • C:\Windows\SysWOW64\net.exe
      net stop nethttpservice
      2⤵
      • Suspicious use of WriteProcessMemory
      PID:1352
      • C:\Windows\SysWOW64\net1.exe
        C:\Windows\system32\net1 stop nethttpservice
        3⤵
          PID:1992
      • C:\Windows\SysWOW64\net.exe
        net stop serviceupdater
        2⤵
        • Suspicious use of WriteProcessMemory
        PID:748
        • C:\Windows\SysWOW64\net1.exe
          C:\Windows\system32\net1 stop serviceupdater
          3⤵
            PID:848
        • C:\Windows\SysWOW64\installd.exe
          "C:\Windows\system32\installd.exe" nethfdrv
          2⤵
          • Executes dropped EXE
          • Loads dropped DLL
          PID:520
        • C:\Windows\SysWOW64\nethtsrv.exe
          "C:\Windows\system32\nethtsrv.exe" -nfdi
          2⤵
          • Executes dropped EXE
          • Loads dropped DLL
          PID:1088
        • C:\Windows\SysWOW64\netupdsrv.exe
          "C:\Windows\system32\netupdsrv.exe" -nfdi
          2⤵
          • Executes dropped EXE
          PID:1652
        • C:\Windows\SysWOW64\net.exe
          net start nethttpservice
          2⤵
          • Suspicious use of WriteProcessMemory
          PID:1756
          • C:\Windows\SysWOW64\net1.exe
            C:\Windows\system32\net1 start nethttpservice
            3⤵
              PID:956
          • C:\Windows\SysWOW64\net.exe
            net start serviceupdater
            2⤵
            • Suspicious use of WriteProcessMemory
            PID:300
            • C:\Windows\SysWOW64\net1.exe
              C:\Windows\system32\net1 start serviceupdater
              3⤵
                PID:1856
          • C:\Windows\SysWOW64\nethtsrv.exe
            C:\Windows\SysWOW64\nethtsrv.exe
            1⤵
            • Executes dropped EXE
            • Loads dropped DLL
            • Suspicious use of AdjustPrivilegeToken
            PID:336
          • C:\Windows\SysWOW64\netupdsrv.exe
            C:\Windows\SysWOW64\netupdsrv.exe
            1⤵
            • Executes dropped EXE
            PID:1812

          Network

                MITRE ATT&CK Enterprise v6

                Replay Monitor

                Loading Replay Monitor...

                Downloads

                • C:\Windows\SysWOW64\hfnapi.dll

                  Filesize

                  106KB

                  MD5

                  79661e4b7ea8f53375b3c788e61e437f

                  SHA1

                  7060bc4ba68e033b399909aa81edc33f1cd7cbdc

                  SHA256

                  ac6088d3ce0abbbe2508d71734c6bebfca1be176f43e268903aa1e0422932c47

                  SHA512

                  11ec9f43ec0cef4924f9f2f640e8d05a46a4e9779162761343bf68f9abc28921388174e2778f335d18da10bb7033a18b954689c560a28db9d1483563162c897e

                • C:\Windows\SysWOW64\hfpapi.dll

                  Filesize

                  241KB

                  MD5

                  53ef51d327beada9e71ae2261518789f

                  SHA1

                  d8a98cfa623c926f0062af3f97336fffceb2f0b1

                  SHA256

                  50ccdba18c1252f42773c2e8415a62635c64571f7ba924f856f2913ea80ad717

                  SHA512

                  59e031b4e66ae3a25f7679854c5159ee66e4e8471a59779acd435933d9c0a9ef988bc924db36635cffcb07ab744d71cdad5971d2a03dcf31703de441195d1c86

                • C:\Windows\SysWOW64\installd.exe

                  Filesize

                  108KB

                  MD5

                  052a419a4c14d004ce58923e2d3e2164

                  SHA1

                  3905130447b3a3f02a885822ef30a819c266ebb5

                  SHA256

                  5b121df4cf0405f4eea41e1d994337349509a7e04022f56a90057bd6cf13dd05

                  SHA512

                  0fc434aaf67560c789e4f97b3649cea449d27dc3c5766690aef449e7bacef36bdb1911bfdcb8f0414b2f92761605d89f70dedda2bb51cba25a2529198ce9f527

                • C:\Windows\SysWOW64\nethtsrv.exe

                  Filesize

                  176KB

                  MD5

                  d905d64835ae1a3978031af68fa3b1ab

                  SHA1

                  ee4dffee8aaeea43ad9755465e85556468ee27b1

                  SHA256

                  889dca7bb566bb389b27b23a984adc761708a39e0e0fd5fb96655cbaa0d3bafa

                  SHA512

                  1be66517c23dc78175fb4be3784a5a708f8aa43bf45e55ddc923df463f4c1d91b50889c7f9cde76a87acbe0e71f58fad2f2007477110d70cb1b3bee04dbe5fee

                • C:\Windows\SysWOW64\nethtsrv.exe

                  Filesize

                  176KB

                  MD5

                  d905d64835ae1a3978031af68fa3b1ab

                  SHA1

                  ee4dffee8aaeea43ad9755465e85556468ee27b1

                  SHA256

                  889dca7bb566bb389b27b23a984adc761708a39e0e0fd5fb96655cbaa0d3bafa

                  SHA512

                  1be66517c23dc78175fb4be3784a5a708f8aa43bf45e55ddc923df463f4c1d91b50889c7f9cde76a87acbe0e71f58fad2f2007477110d70cb1b3bee04dbe5fee

                • C:\Windows\SysWOW64\netupdsrv.exe

                  Filesize

                  158KB

                  MD5

                  d9422e9e74f965435c98d1ae0b8865c1

                  SHA1

                  3da2390a0df4388e58701f2487b6b3b89f906485

                  SHA256

                  1cdc93445dae95cd1113a64c6c846288adf6aa5fad2707a37abb81b9ef2c371c

                  SHA512

                  23556d6a470b73b805e1eea348ed180d0d5d1326409a51b20dbc51e64173308fc0b8da426959d0e316fc4b13f5bc056901ec4647a1eb5be5a154e7f4d68344ad

                • C:\Windows\SysWOW64\netupdsrv.exe

                  Filesize

                  158KB

                  MD5

                  d9422e9e74f965435c98d1ae0b8865c1

                  SHA1

                  3da2390a0df4388e58701f2487b6b3b89f906485

                  SHA256

                  1cdc93445dae95cd1113a64c6c846288adf6aa5fad2707a37abb81b9ef2c371c

                  SHA512

                  23556d6a470b73b805e1eea348ed180d0d5d1326409a51b20dbc51e64173308fc0b8da426959d0e316fc4b13f5bc056901ec4647a1eb5be5a154e7f4d68344ad

                • \Users\Admin\AppData\Local\Temp\nsoB85A.tmp\System.dll

                  Filesize

                  11KB

                  MD5

                  c17103ae9072a06da581dec998343fc1

                  SHA1

                  b72148c6bdfaada8b8c3f950e610ee7cf1da1f8d

                  SHA256

                  dc58d8ad81cacb0c1ed72e33bff8f23ea40b5252b5bb55d393a0903e6819ae2f

                  SHA512

                  d32a71aaef18e993f28096d536e41c4d016850721b31171513ce28bbd805a54fd290b7c3e9d935f72e676a1acfb4f0dcc89d95040a0dd29f2b6975855c18986f

                • \Users\Admin\AppData\Local\Temp\nsoB85A.tmp\nsExec.dll

                  Filesize

                  6KB

                  MD5

                  acc2b699edfea5bf5aae45aba3a41e96

                  SHA1

                  d2accf4d494e43ceb2cff69abe4dd17147d29cc2

                  SHA256

                  168a974eaa3f588d759db3f47c1a9fdc3494ba1fa1a73a84e5e3b2a4d58abd7e

                  SHA512

                  e29ea10ada98c71a18273b04f44f385b120d4e8473e441ce5748cfa44a23648814f2656f429b85440157988c88de776c6ac008dc38bf09cbb746c230a46c69fe

                • \Users\Admin\AppData\Local\Temp\nsoB85A.tmp\nsExec.dll

                  Filesize

                  6KB

                  MD5

                  acc2b699edfea5bf5aae45aba3a41e96

                  SHA1

                  d2accf4d494e43ceb2cff69abe4dd17147d29cc2

                  SHA256

                  168a974eaa3f588d759db3f47c1a9fdc3494ba1fa1a73a84e5e3b2a4d58abd7e

                  SHA512

                  e29ea10ada98c71a18273b04f44f385b120d4e8473e441ce5748cfa44a23648814f2656f429b85440157988c88de776c6ac008dc38bf09cbb746c230a46c69fe

                • \Users\Admin\AppData\Local\Temp\nsoB85A.tmp\nsExec.dll

                  Filesize

                  6KB

                  MD5

                  acc2b699edfea5bf5aae45aba3a41e96

                  SHA1

                  d2accf4d494e43ceb2cff69abe4dd17147d29cc2

                  SHA256

                  168a974eaa3f588d759db3f47c1a9fdc3494ba1fa1a73a84e5e3b2a4d58abd7e

                  SHA512

                  e29ea10ada98c71a18273b04f44f385b120d4e8473e441ce5748cfa44a23648814f2656f429b85440157988c88de776c6ac008dc38bf09cbb746c230a46c69fe

                • \Users\Admin\AppData\Local\Temp\nsoB85A.tmp\nsExec.dll

                  Filesize

                  6KB

                  MD5

                  acc2b699edfea5bf5aae45aba3a41e96

                  SHA1

                  d2accf4d494e43ceb2cff69abe4dd17147d29cc2

                  SHA256

                  168a974eaa3f588d759db3f47c1a9fdc3494ba1fa1a73a84e5e3b2a4d58abd7e

                  SHA512

                  e29ea10ada98c71a18273b04f44f385b120d4e8473e441ce5748cfa44a23648814f2656f429b85440157988c88de776c6ac008dc38bf09cbb746c230a46c69fe

                • \Windows\SysWOW64\hfnapi.dll

                  Filesize

                  106KB

                  MD5

                  79661e4b7ea8f53375b3c788e61e437f

                  SHA1

                  7060bc4ba68e033b399909aa81edc33f1cd7cbdc

                  SHA256

                  ac6088d3ce0abbbe2508d71734c6bebfca1be176f43e268903aa1e0422932c47

                  SHA512

                  11ec9f43ec0cef4924f9f2f640e8d05a46a4e9779162761343bf68f9abc28921388174e2778f335d18da10bb7033a18b954689c560a28db9d1483563162c897e

                • \Windows\SysWOW64\hfnapi.dll

                  Filesize

                  106KB

                  MD5

                  79661e4b7ea8f53375b3c788e61e437f

                  SHA1

                  7060bc4ba68e033b399909aa81edc33f1cd7cbdc

                  SHA256

                  ac6088d3ce0abbbe2508d71734c6bebfca1be176f43e268903aa1e0422932c47

                  SHA512

                  11ec9f43ec0cef4924f9f2f640e8d05a46a4e9779162761343bf68f9abc28921388174e2778f335d18da10bb7033a18b954689c560a28db9d1483563162c897e

                • \Windows\SysWOW64\hfnapi.dll

                  Filesize

                  106KB

                  MD5

                  79661e4b7ea8f53375b3c788e61e437f

                  SHA1

                  7060bc4ba68e033b399909aa81edc33f1cd7cbdc

                  SHA256

                  ac6088d3ce0abbbe2508d71734c6bebfca1be176f43e268903aa1e0422932c47

                  SHA512

                  11ec9f43ec0cef4924f9f2f640e8d05a46a4e9779162761343bf68f9abc28921388174e2778f335d18da10bb7033a18b954689c560a28db9d1483563162c897e

                • \Windows\SysWOW64\hfpapi.dll

                  Filesize

                  241KB

                  MD5

                  53ef51d327beada9e71ae2261518789f

                  SHA1

                  d8a98cfa623c926f0062af3f97336fffceb2f0b1

                  SHA256

                  50ccdba18c1252f42773c2e8415a62635c64571f7ba924f856f2913ea80ad717

                  SHA512

                  59e031b4e66ae3a25f7679854c5159ee66e4e8471a59779acd435933d9c0a9ef988bc924db36635cffcb07ab744d71cdad5971d2a03dcf31703de441195d1c86

                • \Windows\SysWOW64\hfpapi.dll

                  Filesize

                  241KB

                  MD5

                  53ef51d327beada9e71ae2261518789f

                  SHA1

                  d8a98cfa623c926f0062af3f97336fffceb2f0b1

                  SHA256

                  50ccdba18c1252f42773c2e8415a62635c64571f7ba924f856f2913ea80ad717

                  SHA512

                  59e031b4e66ae3a25f7679854c5159ee66e4e8471a59779acd435933d9c0a9ef988bc924db36635cffcb07ab744d71cdad5971d2a03dcf31703de441195d1c86

                • \Windows\SysWOW64\installd.exe

                  Filesize

                  108KB

                  MD5

                  052a419a4c14d004ce58923e2d3e2164

                  SHA1

                  3905130447b3a3f02a885822ef30a819c266ebb5

                  SHA256

                  5b121df4cf0405f4eea41e1d994337349509a7e04022f56a90057bd6cf13dd05

                  SHA512

                  0fc434aaf67560c789e4f97b3649cea449d27dc3c5766690aef449e7bacef36bdb1911bfdcb8f0414b2f92761605d89f70dedda2bb51cba25a2529198ce9f527

                • \Windows\SysWOW64\nethtsrv.exe

                  Filesize

                  176KB

                  MD5

                  d905d64835ae1a3978031af68fa3b1ab

                  SHA1

                  ee4dffee8aaeea43ad9755465e85556468ee27b1

                  SHA256

                  889dca7bb566bb389b27b23a984adc761708a39e0e0fd5fb96655cbaa0d3bafa

                  SHA512

                  1be66517c23dc78175fb4be3784a5a708f8aa43bf45e55ddc923df463f4c1d91b50889c7f9cde76a87acbe0e71f58fad2f2007477110d70cb1b3bee04dbe5fee

                • \Windows\SysWOW64\netupdsrv.exe

                  Filesize

                  158KB

                  MD5

                  d9422e9e74f965435c98d1ae0b8865c1

                  SHA1

                  3da2390a0df4388e58701f2487b6b3b89f906485

                  SHA256

                  1cdc93445dae95cd1113a64c6c846288adf6aa5fad2707a37abb81b9ef2c371c

                  SHA512

                  23556d6a470b73b805e1eea348ed180d0d5d1326409a51b20dbc51e64173308fc0b8da426959d0e316fc4b13f5bc056901ec4647a1eb5be5a154e7f4d68344ad

                • memory/1192-63-0x0000000000360000-0x00000000007BE000-memory.dmp

                  Filesize

                  4.4MB

                • memory/1192-54-0x0000000075591000-0x0000000075593000-memory.dmp

                  Filesize

                  8KB

                • memory/1192-58-0x0000000000360000-0x00000000007BE000-memory.dmp

                  Filesize

                  4.4MB

                • memory/1192-91-0x0000000000360000-0x00000000007BE000-memory.dmp

                  Filesize

                  4.4MB