MALICIOUS
194
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1059.007 JavaScript
The PDF contains numerous links, with a critical heuristic identifying a link to a known malicious redirector. The document body, though heavily obfuscated, also contains URLs that appear to be part of a link farm designed to attract search engine traffic. The primary malicious URL identified is https://ttraff.ru/pify?keyword=anacalypsis+pdf+espa%25C3%25B1ol, which is likely used to redirect users to malicious content or phishing pages.
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=anacalypsis+pdf+espa%25C3%25B1ol In PDF document text
- http://files.elderhollingsworth.com/uploads/1/3/2/3/132303351/f2d75.pdfIn PDF document text
- http://vitefi.unifor4000fr.com/uploads/1/3/2/8/132814930/6923659.pdfIn PDF document text
- http://riluki.chantalquincy.com/uploads/1/3/2/6/132695829/zedikof_remogi_xuvise_sinizulo.pdfIn PDF document text
- http://files.accssfn.com/uploads/1/3/2/8/132814972/6819840.pdfIn PDF document text
- http://rusez.geraldineandnicholas.com/uploads/1/3/2/6/132681824/wiwepul_zumurepijogu.pdfIn PDF document text
- http://www.ascendercorp.com/In PDF document text
- http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
- http://www.daltonmaag.com/In PDF document text
- https://cdn.shopify.com/s/files/1/0441/0382/7608/files/37560228998.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0434/4722/2422/files/kopagixowefurimevufor.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0432/6942/3269/files/26240027612.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0437/5959/9777/files/chemistry_the_central_science_9th_edition.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0428/9665/4489/files/bamatutanagoruraziwibed.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0428/5192/6183/files/20151792305.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0441/0051/8040/files/tevojutusijagimixumagu.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0431/4267/6648/files/red_werewolf_hunter.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0430/5453/0709/files/12655462867.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0427/8085/2383/files/18034317669.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0434/0216/6435/files/debovukakikakudab.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0438/3241/0272/files/96599806199.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0431/2875/0241/files/lipejopebeseworuvekazusez.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 3
Files carved from inside the sample during analysis.
| Filename | Kind | Source | Size |
|---|---|---|---|
font_00_sfnt_off00006c87.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x6C87 | 5064 bytes |
SHA-256: c066e168eebec6d89c57b824e2f662584d992764702481217c9e06551bd173bf |
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font_01_sfnt_off00007d8b.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x7D8B | 11176 bytes |
SHA-256: e1986a151a2f4f266980abf317e7d98042045bb3c01577fe5d86024ee328be3d |
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font_02_sfnt_off0000a2e3.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xA2E3 | 4324 bytes |
SHA-256: 9f355172d696dda274cac500966718f112ce76951f19577ac4888987ea6471b2 |
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