139.59.144.224 - - [14/Oct/2018:16:54:34 +0000] "\x22\xB9\xF4\x97\xA0X\xEE\xF4\xFE\x93\x03WmK\x0C\xB4XX\x9A\x9B" 400 166 "-" "-"
139.59.144.224 - - [14/Oct/2018:16:54:35 +0000] "L\xD8\xBD\x02\x16|\xD8T!f}\xD5\x96[\xE8\x9B\xC9&\x17b7\x5C\x11z\xB5\x7F\x80x\xBF\x0EB\xB4q\xE5\x06\xE6I\x02\x22T\xC6\xC6\x91E\x04oHx^pG\x1A\xCF\x82\xFAk}\xDCk" 400 166 "-" "-"
139.59.144.224 - - [14/Oct/2018:16:54:36 +0000] "\x07\xC4m@\xDCL\x1A\xBA:\x90G\xB1" 400 166 "-" "-"
139.59.144.224 - - [14/Oct/2018:16:54:38 +0000] "3\xDB\x11\xD0\xA4\xBA\x1F\xF0!9\xF1\xAB\xA7\x843\xDA\x1E\xCD\xD8\xA7\xB3\xC2\x9E\xF4\xA6\xD4\xB9\xCBc\xE2+\xD2s\xD4\xC4\xDD\xE1\xDF\xB0\xC7;\x19\xDC0\x1F\x94\x94#P\xCC-R]J\xFD@cF\xFCi\xEE\xCB\xF8o\xFC\xDBY\xCE\x10\xD1u\xAFf\xC0:\xBC~\xD5\x99\xC4\x08($\x81W(\x01\xC4q-Tg>?\xF4X\xF1O\xA0\xB0\xA2\xE19\xE9\xE9\xD1u\xCE9+\x85I\xA9$\xBF\xDAC\xC5\xB9\x0EbS\x1B\xAF\x88\xC6U\xAA\x8F\xDF\x83\xEEQ\x9E\x1E\x0B\xE3=\xB5L-8\xA6\x01\x9F\xAB\x89W\xDFaSx\x05\xAF\xCB,>\xB4b\xBF\x9E\x1BH\xD8(Uo\xAA\x96\xEF\xEBY\xB4ak9\x88\xE1\x9E/v^\xA9\x5C\xE3\x98\x83\xF7\xDF\xC0\x089" 400 166 "-" "-"
139.59.144.224 - - [14/Oct/2018:16:54:38 +0000] ">p\xEB\x1C\xF5" 400 166 "-" "-"
139.59.144.224 - - [14/Oct/2018:16:54:39 +0000] "e5\xCA\x7F0\xCD\xE9k}\x82\xD7\x1E\xF7\xED\xE7\xE3\x92}f\x5C\xE0\xD5'd\x168s2\xC1\x94`%B\x93\xAD\x11\xD7\xCC_\xE5\xC5\x10V\xD6\xA7\xC8)\xA1\xAA\xB8fU\x10n!\xC8\xD3\x82\xEF<ws\xE2\x06(\xA65pWkV\xB9\xB2 \x81l\xE9\xDA\xA7\xAC0\x10\x9E*\x82\xBA\xE6\xDC\xDA\x0B\x97\xFC\x05\xA8\xA5k\xB4\x01U\xF2\x05%\xF8\x1El4\xB6B^\xEC\x8B\x0Bf\x13\xDB>Kg\xF6E\xF6\x11\x8B#\x9C\xBA\x11\x80\x18%\xD7!\x86A\x8F\x05\xA1:\xF4\xFC\xCC\xF2?\x16\x9E\xEF\xA3M\x8A\xD9PQ\x99K\xB4\xB4\xE7\xE9\xD0r\xBAbQ/\xFE\x11\x96\xAAj=\x9E\xE02\xAA8\xBFl\x04\xCAns\xCE\xA7\xEC\xDF\xC3\x84\xB0\xE9\xA1\x03\xAE>y\xFBYP\x16" 400 166 "-" "-"
139.59.144.224 - - [14/Oct/2018:16:54:39 +0000] "V\x07\x8DQV\x1FC\xAA\x9E\xECus\xDA\x07\xD7\xB64\xB49\x90\xB0\x17\xC1\xF3\xD8\x93\xD9\xCF\xF7\x10\x9C\xBD\x00\xE3m\xE6&\x97Wcv\xCEDxc\xFAj\xFE\xFB\xF5\x81\x03\x88$\xAD\x84I+\x1F\xB0p\xAB\x8Er\xC7q\x01\xB3\x934\x02\xCA\x94\xD8&\x11\xAA\xEB!\xA3\x07\xF6\x02" 400 166 "-" "-"

(Then banned by Fail2ban)

139.59.159.47 - - [17/Oct/2018:17:07:49 +0000] "%\xAE\x8E\xD5\x8C\xFC\xB6\x07\xD0Km\xDF \x11=\xE5a\xB7\xB9\x9E\xDE" 400 166 "-" "-"
139.59.159.47 - - [17/Oct/2018:17:07:49 +0000] "_\xB18\xB73\x00\x8B:\x7F\x14,0\xF4a\xFE\x80\xA8)M\xF3s\x9CM)\xC9\x85e\xBFD\xA7J\xE37\xB8\xB3\xA4\x06\x09*6\xC4@\x028\x17\xDD<\x08hu\x8C,\xC5H\xDAQ\x92\xDF\x1B\x9B\xC1a\x22" 400 166 "-" "-"
139.59.159.47 - - [17/Oct/2018:17:07:50 +0000] "\xA0\xE1\xCF\xF4\xF9\xC8\xCFZ~\x82:F\xF6[N\xB493I\xA9#\xDE\xC8x\xE5\x0B\xC7w\xA8\xF4F\x09\xDF\x93\xB0c\x22\x9E\xD1!\xE5\xED]2*\xDC\xEC#\x17\x1C\xE3\x8F\xAA\xC1\xAC\x96\xF9y\xF9\x22\xE4\xFD\x06Q\xA9\xAA\xCFG\x81\xABd\xA9Hh\x94\x1C`\x94nnw\xE6\xD2" 400 166 "-" "-"
139.59.159.47 - - [17/Oct/2018:17:07:50 +0000] "9\x80\x8Cb@\xA5\x7F\x14\x18\xC9I\xF9\x08\x9DU\x16\xD6\xE7\xBB\xF6}Y?\xA1l\xDF\x89\xE3\xFB+F\xFB\x97dN'\xD0\xF4\x94\x02\x02\xA0\xD1\xE9\xDC\xEA\xC7\x89qZrT\x83\xAF\xFA\xD6Wf\x8Buz\xC1\x15\xCA\xC6C\x09\x00\xF6#\x9A\x90j\x03\xABU\xEDBq\x09\x18\xA3\x9FQ\xCDz\xFA\x19\xD4\x0F\x88a\xC5\x82eL\xE1?iG" 400 166 "-" "-"
139.59.159.47 - - [17/Oct/2018:17:07:50 +0000] "T#%\xC8\xFEO\xD0X0]\xA5\x00C\xD6\xF9[\xA0w\x1D5m\xC3\x14R\xD8\x81,@\xFF\x14\xF2&\x1E\xC9'\xF7]\x1B.\x95\x90\x11?\xDC\x82\xA6f'\x80M\x9A`Pd\x06U\x93\xE0\x95\x04`\x02w5\x98A\xD1?\xF7+\x9Eg\x1F\x04\x8BP\xCE#B\x1C\x0F!\xAFj\xF0XB\xBF\x0B\xBE@\xFBu\xEF\xBCd\xF5Lx\xAC\xDC\xE21\x22\xFC\x13&\x10%\xBB\xBDRu\xDC\xA2Q" 400 166 "-" "-"
139.59.159.47 - - [17/Oct/2018:17:07:50 +0000] "n+\x0C]\xB2\xF6c\xFD\x02;\xFC~\x94\xAB\x0Cw\xD4o\xC7\xB9]J\xAA\xB7C\xB7\x84\x0EB\x5C\x18<_\xB0n^Xm\x16\xAF\x0EQ" 400 166 "-" "-"
139.59.159.47 - - [17/Oct/2018:17:07:51 +0000] " \x06\xBF\x82\xDA\xC3\xB9E\x8CN>-\xB2\x00H\xB4\x7F\x04\xFE\xDA\xA4\x89J\x1C\xB0g\xF8\xB6\x0B\x87':\x1A\x96\xADv\x9CZ\xA2uf\x87lU\xCD\x96RA\xC5\xCD\xED\x0E\xF2\x9E\xBF2\xD3fG\xB0\x97\x9B+3\x87\x84\xFD\x9F|\xC2~\xBF\xAD\xB3\x15ik\xCFu\x83\x12|\x064\xC7WL\xCF|\x85 \xF9\xE7\x14`| \xA9\xF6sI\xF8\x8As\x0B\xE3\xE2,\x85\x1D?\xA8!-\x84\xF2\xDE\xB5\xBA\xD6n\xEF\x07is\xE2\x16\x09\xF2\x86\x80\xFA4\xBAn\xE2:5\xD0\xBB\xCC\xF1&\xEE\x09\x7F\x8A\x9B\xD2\xA1\x9F\x9A\x00\x9B/l\x1D\x0C\xD9\xB85(\xFAaM\xC7\xDCE'\xB2@v\xC4HV7K\x11?\xF1\xB7LwKq\x15\xC9\x1B\xE1\xE1\x85\xB4U\xB49\xA3L\xE8U]\xCA`@\x18$\xD0\x88\x1D\x08o\x88[\x9E\xAC\xC0`\x16\xB5\xA9/:\xB9\x85\xAF\xFA\xF3T\xD2\x18r,4\x06\xEB\xA5\xCC\xE9\x13p[>A1\x84+\x03\x93\x09\x85j\xD7\xC1\xA9\x18\xBA\x9A\x09\xDD\x17\xCF\xF6\xF3\xCE\xF7o%|\x03\x9B\xA3)J;M\xB9\xBE\x86P^n\xF0u\x05v(\xFB\xED\x03j\xD471\x84\x90\xAA\xF0m\xB5" 400 166 "-" "-"
139.59.159.47 - - [17/Oct/2018:17:07:51 +0000] "T\x17e\x13-\xB1\xA0\x05\x83\xE0\x98ju;\xB7:\xAF\x88\x9A\xDE\xAD\x9C\xA0\xF4\xBC\x9D\xF9ML2Z\x1F\x19m\xDC\xE5\xA6\x98P\xF6k\x8Cx\x14F\xC2\x88\x99\xCA\x8EW\x08\xF5\x86\x161'd\xA7\xB8\x97\x89\xBA\x02%\xF7>W\xD5Sgd\xFC\xE1\xD6\xF2\xAAZ\xFE\x8A\xD5\xFD2\x07c\xD9\x04\xCDZvb\xAE\x07\x16\xC7\xA1\xA5I C\x85\x89~\xD2" 400 166 "-" "-"
139.59.159.47 - - [17/Oct/2018:17:07:51 +0000] "7\x983\x804,\xCD\x9D\xDF\x8F+;\xC9y(\xE7EF\x8D\x9AL\xB3&\xDFGtd\x02\xB2e\x9F\x04\xCC (\x84\xF1c\x01\xEB)\xB5\xF1\xEC\x1F_/\x1F\x13h`EIr7F\xB2j\xF5Z\x18K\xC9{}=\x08\xFC\xD0\x94MA\x18\xD2l\x0E\xBBu\xCE\x85%=\xB5\x8E\xBD\xC9\x1C\x5Cq|\xCE\xFE~&\xB5O$\xAF\xC3:\x9E\x01e\x99\x19DB\xC3(\xC06\x99l\x16\x09\x16\xEE\x9C\x13c\x0B\xA8\x18\xFB\x90\x1C\xFDRIi:\xA2\xD1N9\xE9\xCF\xB6\xD5\x877,\xD4\xA8\x84if7\x97\x07\xADW\xF8*\xF4\x10oI\x16" 400 166 "-" "-"
139.59.159.47 - - [17/Oct/2018:17:07:52 +0000] "u\x80\xF2\x0B" 400 166 "-" "-"
139.59.159.47 - - [17/Oct/2018:17:07:57 +0000] "\x1F\xC6\x8Bda\x19`\xEF\x86\x91\x22\xF9\xC8\xB6\x0B\xE9\x9A6\xCBU\xED{\x92v\x08\x92,\xCE&a\xCD)\x8B\xEA\xD5\x07\x0F\xB7r;\xE4\x9A\x845Q\xEB\xF5\xF9e\xAF\x99\xD16" 400 166 "-" "-"

(Then banned by Fail2ban)