MALICIOUS
194
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
The PDF contains numerous links, many pointing to a redirector service (ttraff.cc) known for malicious activity. The heuristic PDF_SEO_LINK_FARM indicates a large number of external links, likely part of a phishing or scam campaign. The ML classifier also strongly flagged this PDF as malicious. The embedded URLs suggest a lure for users to download potentially malicious content.
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=anticonvulsant+mechanism+of+action+pdf In PDF document text
- http://files.waimayyau.com/uploads/1/3/2/3/132302710/1eb76f4141.pdfIn PDF document text
- http://files.echostage.info/uploads/1/3/1/4/131407164/lobugib_sedekutemi_nibanujaduvabe.pdfIn PDF document text
- http://files.templetonffa.org/uploads/1/3/0/7/130776073/4460813.pdfIn PDF document text
- http://files.gicentralcatholic.org/uploads/1/3/0/7/130775678/majala-lomejamozuzesi-nonisu-radumobewavus.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/1/0448/1895/6448/files/yamaha_ef1000_generator_manual.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0431/3192/8730/files/74274492740.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0437/6713/6413/files/84431792635.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0428/6647/5164/files/regagugubu.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0436/9619/3686/files/bacillus_species_characteristics.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0438/3703/0560/files/adverbs_definition_and_examples.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0429/1526/6713/files/desepeloj.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0427/4244/8295/files/embrace_of_the_vampire_2013.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0430/3932/6365/files/94197544546.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0432/5369/4626/files/the_tournament_at_gorlan.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0431/4152/9762/files/b._sc_maths_solution.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0432/2797/1741/files/amaurose_congenita_de_leber.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0448/2557/5581/files/8681588409.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0431/4100/5480/files/pibagenon.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0431/5657/0266/files/xiwen.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
Extracted artifacts 2
Files carved from inside the sample during analysis.
| Filename | Kind | Source | Size |
|---|---|---|---|
font_00_sfnt_off0000a664.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xA664 | 5348 bytes |
SHA-256: a8388b0732a72893101f8cc7df51f71804c074f55afacc206cdfc4d387426a04 |
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font_01_sfnt_off0000b87f.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xB87F | 10292 bytes |
SHA-256: ece427b1b5ab280a5232aa2079fb274898f2fffdbc7900bd3fb54da08448b107 |
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