MALICIOUS
154
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1059.007 JavaScript
The PDF contains numerous links, many pointing to Shopify domains hosting other PDFs, but one critical link redirects through ttraff.cc, a known malicious redirector. The document body, though heavily obfuscated, contains the same lure text and the malicious redirector URL, indicating an attempt to trick users into downloading content via a malicious link. The ML classifier strongly supports the malicious verdict.
Machine Learning
- Nyx PDF Classifier malicious score 1.0000
Heuristics 4
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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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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=introduction+to+statistical+learning+book+pdf
- http://files.mattmediainc.com/uploads/1/3/0/8/130813755/wixasolamelutog.pdf
- http://fadefa.annbharrison.net/uploads/1/3/0/9/130969352/8985494.pdf
- http://www.ascendercorp.com/
- http://www.ascendercorp.com/typedesigners.html
- https://cdn.shopify.com/s/files/1/0432/8400/5032/files/ximopituwukuwe.pdf
- https://cdn.shopify.com/s/files/1/0430/6790/0061/files/81116628846.pdf
- https://cdn.shopify.com/s/files/1/0432/6408/2073/files/maryland_magisterial_docket_sheets.pdf
- https://cdn.shopify.com/s/files/1/0438/2860/9186/files/kesal.pdf
- https://cdn.shopify.com/s/files/1/0430/4375/0049/files/chava_kadambari_in_marathi.pdf
- https://cdn.shopify.com/s/files/1/0427/5588/3175/files/neonatal_abdominal_wall_defects.pdf
- https://cdn.shopify.com/s/files/1/0429/2568/6951/files/lobakinamitin.pdf
- https://cdn.shopify.com/s/files/1/0428/5094/3135/files/jifenedowasobim.pdf
- https://cdn.shopify.com/s/files/1/0432/4674/7803/files/biomagnetismo_pares_por_enfermedad.pdf
- https://cdn.shopify.com/s/files/1/0433/0595/9574/files/what_does_tifu_stand_for.pdf
- https://cdn.shopify.com/s/files/1/0433/9302/4149/files/29318578767.pdf
- http://www.w3.org/1999/02/22-rdf-syntax-ns#
- http://purl.org/dc/elements/1.1/
- http://ns.adobe.com/pdf/1.3/
- http://ns.adobe.com/xap/1.0/
- http://ns.adobe.com/xap/1.0/mm/
- http://ns.adobe.com/xap/1.0/rights/
- http://scripts.sil.org/OFL
Extracted artifacts 2
Files carved from inside the sample during analysis.
| Filename | Kind | Source | Size |
|---|---|---|---|
font_00_sfnt_off000063cb.bind686e50b9479b9a332df4c4859788bea1e47ef4947fb5ed92ee6d402d1426bf9 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x63CB | 5464 bytes |
font_01_sfnt_off00007669.binb8f41a5631e2b673b43ab360fdc13b043f7254cff3c4a7edce95bfe9efacc902 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x7669 | 10164 bytes |
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