MALICIOUS
194
Risk Score
Malware Insights
MITRE ATT&CK
T1566.002 Spearphishing Attachment
T1204.002 Malicious Link
The PDF contains numerous embedded links, with one pointing to a known malicious redirector. The document body, though heavily obfuscated, contains text related to 'Libros sobre angeles y demonios pdf' and a URL that appears to be part of a link farm designed to attract search engine traffic. The primary malicious link is https://ttraff.cc/pify?keyword=libros+sobre+angeles+y+demonios+pdf, which likely leads to further malicious content. The ML classifier strongly indicated maliciousness.
Machine Learning
- Nyx PDF Classifier malicious score 1.0000
Heuristics 5
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PDF links to known malicious redirector infrastructure critical PDF_MALICIOUS_REDIRECTOR_LINKPDF contains a clickable URI to redirector infrastructure used by a known malicious PDF SEO/adware delivery campaign. These documents typically rely on user interaction and redirect chains rather than a PDF parser vulnerability.
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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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Image lure linking to an SEO redirector (free-download phishing) high PDF_SEO_UTM_REDIRECTOR_LINKPDF embeds an image with little or no body text and a clickable link to a multi-word utm_term / FeedBurner-proxied SEO redirector — the 'free ebook / solution-manual / document download' phishing family that ranks for natural-language search queries and routes the user into a payload/redirect chain. The PDF carries no exploit; the risk is the linked destination. Flagged structurally (image lure + SEO redirector) so it does not depend on a ClamAV/ML signature, and regardless of how many filler text pages the lure carries.
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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 https://ttraff.cc/pify?keyword=libros+sobre+angeles+y+demonios+pdf In PDF document text
- http://kizadali.chrisvosters.com/uploads/1/3/2/6/132682717/3289191ba36.pdfIn PDF document text
- http://files.transitionintowellness.com/uploads/1/3/2/8/132815882/cd64184dc7.pdfIn PDF document text
- http://kogejor.questalpacas.com/uploads/1/3/1/3/131383314/3402360.pdfIn PDF document text
- http://witufu.pchschoirs.com/uploads/1/3/0/8/130814017/7582284.pdfIn PDF document text
- http://ginedu.drhcustomhomesandremodeling.com/uploads/1/3/1/1/131163651/5963796.pdfIn PDF document text
- http://www.ascendercorp.com/In PDF document text
- http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
- https://cdn.shopify.com/s/files/1/0432/7574/7483/files/community_worksheets_for_preschool.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0434/0963/7530/files/tajekerebu.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0437/5547/1006/files/94509829715.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0429/2630/9535/files/70026947811.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0428/7479/8247/files/15431599109.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0432/0670/5316/files/58990689683.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0429/2611/2927/files/adobe_reader_merge_documents.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0433/9548/1750/files/pokosilavademipawizobejag.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0437/1791/8870/files/ms_access_2020_database_tutorial.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0430/9201/7305/files/9943672230.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0440/5595/3558/files/ariel_princess_story.pdfIn 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
- http://scripts.sil.org/OFLIn 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_off00007921.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x7921 | 5544 bytes |
SHA-256: c9963bcb11c7e08b44187f0735d54d65f11cb41d6aca26a17038f35884bafb4d |
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font_01_sfnt_off00008be2.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x8BE2 | 11736 bytes |
SHA-256: 6bc245506dbcbc06adf99a1beafae03bc62bba61c6dd29b678470a7584595928 |
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font_02_sfnt_off0000b24d.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xB24D | 16328 bytes |
SHA-256: f48e048927f4ab0e535fa64d7eded4ccbd2294e97bc270406cdb4ec60522c297 |
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