MALICIOUS
136
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1204.002 Malicious Link
The PDF contains a large number of external links, as indicated by the PDF_SEO_LINK_FARM heuristic. The document body, though partially corrupted, contains a URL that points to a PDF file. The ML classifier also strongly flagged this PDF as malicious. The primary attack pattern appears to be a link farm designed to redirect users to numerous other PDF documents hosted on various domains, potentially for SEO poisoning or to distribute malware.
Machine Learning
- Nyx PDF Classifier malicious score 1.0000
Heuristics 5
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Small PDF contains mass external PDF link farm critical PDF_SEO_LINK_FARMSmall PDF contains many clickable external PDF links, mostly clustered on one host. This matches generated SEO/link-farm PDF carriers used to route users into malicious or unwanted-software delivery chains, rather than a normal document citation pattern.
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PDF link to algorithmically-generated URL high PDF_RANDOM_URL_LINKPDF contains a clickable HTTP(S) link whose host looks algorithmically generated (pronounceable-random labels) and whose path/query carries a long high-entropy token. This is the randomized-redirector pattern of malspam phishing lures — the visible document is only a prompt — not a PDF parser vulnerability.
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External URI info PDF_URIPDF contains an external URL action
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Object number defined twice with different bodies info PDF_DUPLICATE_OBJ_BODY_INCREMENTALThe same indirect object (N G) is defined more than once with different body bytes. First-wins and last-wins readers will resolve different content, which is a parser-confusion shape used by targeted PDFs. Body-only differences are common in benign incremental updates, so severity is raised only when the duplicate carries active content.
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Embedded URL info EMBEDDED_URLOne 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://headblocks.org/uploads/1/3/0/3/130379407/130379407.html#que+significa+servidumbre+de+transito PDF link annotation
- http://unitecno.org/uploads/1/3/0/5/130543010/gixoges.pdfIn PDF document text
- http://laxapartments.com/uploads/1/3/0/5/130589217/bilavapetejig.pdfIn PDF document text
- http://pairblymedia.com/uploads/1/3/0/5/130589218/lusudemixitanodug.pdfIn PDF document text
- http://brmelectro.com/uploads/1/3/0/2/130288318/49f83a826bbe1.pdfIn PDF document text
- http://mtmsmusic.com/uploads/1/3/0/2/130291658/zomibalazowepujuku.pdfIn PDF document text
- http://pathpublications.com/uploads/1/3/0/7/130775510/wenefijamajitagal.pdfIn PDF document text
- http://kalina-chung.com/uploads/1/3/0/7/130740013/5381678.pdfIn PDF document text
- http://raesalon.com/uploads/1/3/0/5/130552073/gudinivejip.pdfIn PDF document text
- http://vintagehomegreensboro.com/uploads/1/3/0/8/130873916/d81f61d.pdfIn PDF document text
- http://windlassyachtsales.com/uploads/1/3/0/6/130620375/252332.pdfIn PDF document text
- http://californiacreativecounselingcenters.com/uploads/1/3/0/5/130589179/1370171.pdfIn PDF document text
- http://laurasfoundation.com/uploads/1/3/1/1/131164023/1752116.pdfIn PDF document text
- http://heartsofjustice.org/uploads/1/3/0/8/130873986/keviwimosulojem.pdfIn PDF document text
- http://timetrails.com/uploads/1/3/0/4/130483270/8714040.pdfIn PDF document text
- http://askjimmycarter.com/uploads/1/3/0/6/130620427/59cff8.pdfIn PDF document text
- http://simplygreathearts.com/uploads/1/3/0/5/130539432/pajuzan_visosadov.pdfIn PDF document text
- http://plateauhelmets.com/uploads/1/3/0/5/130590158/fuvabemod.pdfIn PDF document text
- http://www.ascendercorp.com/In PDF document text
- http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
- http://www.w3.org/1999/02/22-rdf-syntax-ns#In PDF document text
- http://purl.org/dc/elements/1.1/In PDF document text
- http://ns.adobe.com/pdf/1.3/In PDF document text
- http://ns.adobe.com/xap/1.0/In PDF document text
- http://ns.adobe.com/xap/1.0/mm/In PDF document text
- http://ns.adobe.com/xap/1.0/rights/In PDF document text
- https://fedoraproject.org/wiki/Licensing/LiberationFontLicenseIn PDF document text
- http://dejavu.sourceforge.netIn PDF document text
- http://dejavu.sourceforge.net/wiki/index.php/LicenseIn PDF document text
Extracted artifacts 3
Files carved from inside the sample during analysis.
| Filename | Kind | Source | Size |
|---|---|---|---|
font_00_sfnt_off00007981.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x7981 | 9016 bytes |
SHA-256: 9fb1e214f6518d4022973f3eaabb141807dba018bd246a1465a50a19ce799e76 |
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font_01_sfnt_off00009a2e.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x9A2E | 2864 bytes |
SHA-256: 6dc6e07f93ae70488a19e8a398a1c6cda2f5723fc3d3cbe180c5afbb10c3611e |
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font_02_sfnt_off0000a445.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xA445 | 16096 bytes |
SHA-256: ff8fb627f3d0dd9997bbf5f8e67d75ba984810f76280c6dead7bf9ae512bf231 |
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