MALICIOUS
194
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1059.007 JavaScript
The PDF contains a mass of external links, many pointing to SEO-optimized PDF download pages, and a critical link to a known malicious redirector. The ML classifier also flagged this PDF with high confidence. The document body, though heavily obfuscated, appears to be a lure for a dictionary PDF, which is a common tactic for SEO link farms and phishing.
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.ru/pify?keyword=dicion%25C3%25A1rio+caldas+aulete+pdf In PDF document text
- http://files.dwfashions.org/uploads/1/3/1/3/131381021/ruwilezirizigir.pdfIn PDF document text
- http://files.sutherlandbeatson.com/uploads/1/3/1/6/131606875/jirekomiv-morilewurewox-vakezuvevobido-welos.pdfIn PDF document text
- http://files.ponderosa-dance.de/uploads/1/3/0/8/130874394/2711243.pdfIn PDF document text
- http://files.thelovingpath.com/uploads/1/3/1/4/131407388/kaguboxalaka_wuvilizore_megatasopepidas.pdfIn PDF document text
- http://files.primo-pc.com/uploads/1/3/2/6/132695829/5946754.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/1/0431/0204/4316/files/zipode.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0428/3141/3404/files/20274386353.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0438/3873/4496/files/vukasepu.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0432/6873/5140/files/11666203833.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0433/1926/3397/files/visimuguze.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0433/7490/3452/files/72832393877.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0436/2082/7300/files/dimubisazugefosixupijodow.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0435/3461/4688/files/81602931300.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0433/1867/3566/files/24092493061.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0431/2432/6566/files/60971522548.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0430/3942/4669/files/sikegawojulebumabasejifad.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0428/2672/7580/files/49662707232.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0435/6135/3371/files/tuvolowodeteduf.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0430/7661/6341/files/bidutumifenemavope.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0431/8468/5224/files/81781547135.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_off00007392.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x7392 | 5264 bytes |
SHA-256: 44e3fbe2f7cc037b69f6400384e3a10982810038d1b92ab1bb7605dbd538d634 |
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font_01_sfnt_off000084f0.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x84F0 | 13028 bytes |
SHA-256: 140e474c1d073bfaa3ddda8781bd044f773672c0999144f2911bdd3adc1a62b3 |
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