Malicious PDF — malware analysis report

Static analysis result for SHA-256 75672397ffa7cb45…

MALICIOUS

PDF

242.5 KB Created: 2012-09-01 08:20:57 Authoring application: Joomla! 1.5 - Open Source Content Management (via TCPDF 2.5.000_PHP4 (http://www.tcpdf.org))
MD5: 3d0404e590909c33802f217f9d40b12c SHA-1: edabdc74c3f196e8363b4d4db81d2854a1562522 SHA-256: 75672397ffa7cb45e57e83872d661877ede4f5d9e99d2bd4e6b4c5745e4c6754
94 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1059.007 JavaScript

The PDF contains embedded JavaScript that creates hidden iframes and includes external URIs. These elements are indicative of an attempt to redirect the user to malicious websites, likely for phishing or malware delivery. The presence of an embedded script payload and external URIs strongly suggests malicious intent.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9691

Heuristics 4

  • PDF contains hidden external HTML iframe high PDF_HIDDEN_HTML_IFRAME
    PDF bytes contain a hidden zero-size HTML iframe pointing to an external HTTP(S) URL. This is a strong malicious dropper/redirect indicator and is not expected in ordinary PDF content.
  • Embedded script payload in PDF stream medium PDF_EMBEDDED_SCRIPT_PAYLOAD
    PDF stream bytes contain an HTML/XFA <script> tag without accompanying Windows shell-execution primitives — common in accessible XFA forms but worth surfacing for analyst review.
  • External URI info PDF_URI
    PDF contains an external URL action
  • 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.gujaal.com/296/tamilnadu-election-results-2011-updates-tn-election-results-li In PDF document text
    • http://it.ph.affinity.com/ctrack0.php?&amp;cmpubid=xvj35&amp;cmskps=&amp;cmsite=www.gujaal.com&amp;cmchannelid=&amp;cmurl=http%3A%2F%2Fwww.gujaal.com%2F296%2Ftamilnadu-election-results-2011-updates-tn-election-results-live&amp;cmref=http%3A%2F%2Fsearch.yahoo.com%2Fsearch%3Fp%3Dtamilnadu%2Blive%2Bnews%2Baiadmk%26ei%3DUTF-8%26fr%3Dmoz35&amp;cmoe=yahoo&amp;cmoq=tamilnadu%20live%20news%20aiadmk&amp;cmvd=1600900-3301361&amp;cmvc=null&amp;cmtitle=Tamilnadu%20Election%20Results%202011%20%7C%20Updates%20TN%20Election%20Results%20Live%20%7C%20Gujaal%20News&amp;rnd=1305270576026&amp;q=result&amp;at=XS&amp;cmip=17&amp;cmis=149&amp;cmid=6&amp;cmdt=pIn PDF document text
    • http://it.ph.affinity.com/ctrack0.php?&amp;cmpubid=xvj35&amp;cmskps=&amp;cmsite=www.gujaal.com&amp;cmchannelid=&amp;cmurl=http%3A%2F%2Fwww.gujaal.com%2F296%2Ftamilnadu-election-results-2011-updates-tn-election-results-live&amp;cmref=http%3A%2F%2Fsearch.yahoo.com%2Fsearch%3Fp%3Dtamilnadu%2Blive%2Bnews%2Baiadmk%26ei%3DUTF-8%26fr%3Dmoz35&amp;cmoe=yahoo&amp;cmoq=tamilnadu%20live%20news%20aiadmk&amp;cmvd=1600900-3301361&amp;cmvc=null&amp;cmtitle=Tamilnadu%20Election%20Results%202011%20%7C%20Updates%20TN%20Election%20Results%20Live%20%7C%20Gujaal%20News&amp;rnd=1305270576026&amp;q=government&amp;at=XS&amp;cmip=17&amp;cmis=149&amp;cmid=6&amp;cmdt=pIn PDF document text
    • http://it.ph.affinity.com/ctrack0.php?&amp;cmpubid=xvj35&amp;cmskps=&amp;cmsite=www.gujaal.com&amp;cmchannelid=&amp;cmurl=http%3A%2F%2Fwww.gujaal.com%2F296%2Ftamilnadu-election-results-2011-updates-tn-election-results-live&amp;cmref=http%3A%2F%2Fsearch.yahoo.com%2Fsearch%3Fp%3Dtamilnadu%2Blive%2Bnews%2Baiadmk%26ei%3DUTF-8%26fr%3Dmoz35&amp;cmoe=yahoo&amp;cmoq=tamilnadu%20live%20news%20aiadmk&amp;cmvd=1600900-3301361&amp;cmvc=null&amp;cmtitle=Tamilnadu%20Election%20Results%202011%20%7C%20Updates%20TN%20Election%20Results%20Live%20%7C%20Gujaal%20News&amp;rnd=1305270576026&amp;q=bargain&amp;at=XS&amp;cmip=17&amp;cmis=149&amp;cmid=6&amp;cmdt=pIn PDF document text
    • http://it.ph.affinity.com/ctrack0.php?&amp;cmpubid=xvj35&amp;cmskps=&amp;cmsite=www.gujaal.com&amp;cmchannelid=&amp;cmurl=http%3A%2F%2Fwww.gujaal.com%2F296%2Ftamilnadu-election-results-2011-updates-tn-election-results-live&amp;cmref=http%3A%2F%2Fsearch.yahoo.com%2Fsearch%3Fp%3Dtamilnadu%2Blive%2Bnews%2Baiadmk%26ei%3DUTF-8%26fr%3Dmoz35&amp;cmoe=yahoo&amp;cmoq=tamilnadu%20live%20news%20aiadmk&amp;cmvd=1600900-3301361&amp;cmvc=null&amp;cmtitle=Tamilnadu%20Election%20Results%202011%20%7C%20Updates%20TN%20Election%20Results%20Live%20%7C%20Gujaal%20News&amp;rnd=1305270576026&amp;q=data%20entry&amp;at=XS&amp;cmip=17&amp;cmis=149&amp;cmid=6&amp;cmdt=pIn PDF document text
    • http://it.ph.affinity.com/ctrack0.php?&amp;cmpubid=xvj35&amp;cmskps=&amp;cmsite=www.gujaal.com&amp;cmchannelid=&amp;cmurl=http%3A%2F%2Fwww.gujaal.com%2F296%2Ftamilnadu-election-results-2011-updates-tn-election-results-live&amp;cmref=http%3A%2F%2Fsearch.yahoo.com%2Fsearch%3Fp%3Dtamilnadu%2Blive%2Bnews%2Baiadmk%26ei%3DUTF-8%26fr%3Dmoz35&amp;cmoe=yahoo&amp;cmoq=tamilnadu%20live%20news%20aiadmk&amp;cmvd=1600900-3301361&amp;cmvc=null&amp;cmtitle=Tamilnadu%20Election%20Results%202011%20%7C%20Updates%20TN%20Election%20Results%20Live%20%7C%20Gujaal%20News&amp;rnd=1305270576026&amp;q=home&amp;at=XS&amp;cmip=17&amp;cmis=149&amp;cmid=6&amp;cmdt=pIn PDF document text
    • http://it.ph.affinity.com/ctrack0.php?&amp;cmpubid=xvj35&amp;cmskps=&amp;cmsite=www.gujaal.com&amp;cmchannelid=&amp;cmurl=http%3A%2F%2Fwww.gujaal.com%2F296%2Ftamilnadu-election-results-2011-updates-tn-election-results-live&amp;cmref=http%3A%2F%2Fsearch.yahoo.com%2Fsearch%3Fp%3Dtamilnadu%2Blive%2Bnews%2Baiadmk%26ei%3DUTF-8%26fr%3Dmoz35&amp;cmoe=yahoo&amp;cmoq=tamilnadu%20live%20news%20aiadmk&amp;cmvd=1600900-3301361&amp;cmvc=null&amp;cmtitle=Tamilnadu%20Election%20Results%202011%20%7C%20Updates%20TN%20Election%20Results%20Live%20%7C%20Gujaal%20News&amp;rnd=1305270576026&amp;q=candidate&amp;at=XS&amp;cmip=17&amp;cmis=149&amp;cmid=6&amp;cmdt=pIn PDF document text
    • http://it.ph.affinity.com/ctrack0.php?&amp;cmpubid=xvj35&amp;cmskps=&amp;cmsite=www.gujaal.com&amp;cmchannelid=&amp;cmurl=http%3A%2F%2Fwww.gujaal.com%2F296%2Ftamilnadu-election-results-2011-updates-tn-election-results-live&amp;cmref=http%3A%2F%2Fsearch.yahoo.com%2Fsearch%3Fp%3Dtamilnadu%2Blive%2Bnews%2Baiadmk%26ei%3DUTF-8%26fr%3Dmoz35&amp;cmoe=yahoo&amp;cmoq=tamilnadu%20live%20news%20aiadmk&amp;cmvd=1600900-3301361&amp;cmvc=null&amp;cmtitle=Tamilnadu%20Election%20Results%202011%20%7C%20Updates%2PDF link annotation
    • http://www.gnu.org/copyleft/gpl.htmlIn PDF document text

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
stream_003_off0000d477.bin
a5337ef1f5a0dfe4dc8fa6b4f3ef847a53624800b5928a0eeef5b888ceecaabc
decompressed-pdf-stream PDF FlateDecoded stream at offset 0xD477 264072 bytes
embedded_pdf_script_0003c637.bin
83bbe8d5426133bcaf613bb6e5d0ed6e07117fe561466f722c83a1bd50910efc
pdf-embedded-script PDF decompressed stream script payload at offset 0x3C637 248262 bytes
Preview script
First 1,000 lines of the extracted script
%PDF-1.5
3 0 obj
<</Type /Page
/Parent 1 0 R
/Resources 2 0 R
/Annots [<</Type /Annot /Subtype /Link /Rect [336.05 733.85 365.39 721.85] /Border [0 0 0] /A <</S /URI /URI (http://it.ph.affinity.com/ctrack0.php?&amp;cmpubid=xvj35&amp;cmskps=&amp;cmsite=www.gujaal.com&amp;cmchannelid=&amp;cmurl=http%3A%2F%2Fwww.gujaal.com%2F296%2Ftamilnadu-election-results-2011-updates-tn-election-results-live&amp;cmref=http%3A%2F%2Fsearch.yahoo.com%2Fsearch%3Fp%3Dtamilnadu%2Blive%2Bnews%2Baiadmk%26ei%3DUTF-8%26fr%3Dmoz35&amp;cmoe=yahoo&amp;cmoq=tamilnadu%20live%20news%20aiadmk&amp;cmvd=1600900-3301361&amp;cmvc=null&amp;cmtitle=Tamilnadu%20Election%20Results%202011%20%7C%20Updates%20TN%20Election%20Results%20Live%20%7C%20Gujaal%20News&amp;rnd=1305270576026&amp;q=result&amp;at=XS&amp;cmip=17&amp;cmis=149&amp;cmid=6&amp;cmdt=p)>>>><</Type /Annot /Subtype /Link /Rect [304.02 523.85 367.38 511.85] /Border [0 0 0] /A <</S /URI /URI (http://it.ph.affinity.com/ctrack0.php?&amp;cmpubid=xvj35&amp;cmskps=&amp;cmsite=www.gujaal.com&amp;cmchannelid=&amp;cmurl=http%3A%2F%2Fwww.gujaal.com%2F296%2Ftamilnadu-election-results-2011-updates-tn-election-results-live&amp;cmref=http%3A%2F%2Fsearch.yahoo.com%2Fsearch%3Fp%3Dtamilnadu%2Blive%2Bnews%2Baiadmk%26ei%3DUTF-8%26fr%3Dmoz35&amp;cmoe=yahoo&amp;cmoq=tamilnadu%20live%20news%20aiadmk&amp;cmvd=1600900-3301361&amp;cmvc=null&amp;cmtitle=Tamilnadu%20Election%20Results%202011%20%7C%20Updates%20TN%20Election%20Results%20Live%20%7C%20Gujaal%20News&amp;rnd=1305270576026&amp;q=government&amp;at=XS&amp;cmip=17&amp;cmis=149&amp;cmid=6&amp;cmdt=p)>>>>]
/Contents 4 0 R>>
endobj
4 0 obj
<</Filter /FlateDecode /Length 1619>>
stream
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ő��5x|eU�N�.�� ��'�� � 5 �z 0�����9 � �� gPǸέ )!�T.G��Ȯ5_ޏfӞ�TWU� u���ԡv6���^5�صf�3�n�H�� ���&����DvW3�l5� �߶@�O6�1�k�/� ?�� �U�6q�  ֠p�<5� ouo���Q�+G<�-ԭ5� L�.r��-�� ��g�d[8��POO�P� �Kp��q�~�w �g�4�" ;�~� � �b ؃%T?}�ON1���V:� W�a� 	���Ĝsz�  ��� 0a�� �vz~�cwe��|`g�� y, ��ɜ��ܢ����d2�{ ������ ,Y�LXX�W i�R�� �_�ώk����P�� + � ��w]	*� 3J�� ���># ����Ժ� �� { F��-����! 9�;w�{ 	< ���^ �� >̱�
�U�;�B�I$�D�F��Npc  U�/u ��4���L�fȁ;ӵ��D�MN�q� �K0 � �ƚj\�3� ��ZO �� ��ʠ��<�h��Q��.�����J� *DD���;��G߰�ü7�� ��z �ݔ �~�s��v��� g�ϥ�Ȟ�$ꦠ
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endstream
endobj
5 0 obj
<</Type /Page
/Parent 1 0 R
/Resources 2 0 R
/Annots [<</Type /Annot /Subtype /Link /Rect [490.13 748.85 530.15 736.85] /Border [0 0 0] /A <</S /URI /URI (http://it.ph.affinity.com/ctrack0.php?&amp;cmpubid=xvj35&amp;cmskps=&amp;cmsite=www.gujaal.com&amp;cmchannelid=&amp;cmurl=http%3A%2F%2Fwww.gujaal.com%2F296%2Ftamilnadu-election-results-2011-updates-tn-election-results-live&amp;cmref=http%3A%2F%2Fsearch.yahoo.com%2Fsearch%3Fp%3Dtamilnadu%2Blive%2Bnews%2Baiadmk%26ei%3DUTF-8%26fr%3Dmoz35&amp;cmoe=yahoo&amp;cmoq=tamilnadu%20live%20news%20aiadmk&amp;cmvd=1600900-3301361&amp;cmvc=null&amp;cmtitle=Tamilnadu%20Election%20Results%202011%20%7C%20Updates%20TN%20Election%20Results%20Live%20%7C%20Gujaal%20News&amp;rnd=1305270576026&amp;q=bargain&amp;at=XS&amp;cmip=17&amp;cmis=149&amp;cmid=6&amp;cmdt=p)>>>><</Type /Annot /Subtype /Link /Rect [341.36 568.85 398.05 556.85] /Border [0 0 0] /A <</S /URI /
... (truncated)