MALICIOUS
154
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1059.007 JavaScript
The PDF contains a large number of embedded links, many of which point to Shopify domains hosting PDF files, suggesting a link farm for SEO manipulation. One critical heuristic identified a link to a known malicious redirector infrastructure at `https://ttraff.ru/pify?keyword=ejercicios+palabras+simples+compuestas+derivadas+y+parasint%25C3%25A9ticas+pdf`. The ML classifier also strongly indicated maliciousness. The document body itself contains garbled text but includes the same malicious URL and several benign-looking Shopify URLs.
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.ru/pify?keyword=ejercicios+palabras+simples+compuestas+derivadas+y+parasint%25C3%25A9ticas+pdf
- http://files.fcscommunitycouncil.org/uploads/1/3/1/4/131437926/7821835.pdf
- http://files.independentscreativegroup.com/uploads/1/3/1/3/131380944/bifexarivigiwo-nimadi.pdf
- http://files.ardsleydaycamp.org/uploads/1/3/1/4/131438539/e43869e.pdf
- http://files.aikidoinstitute.org/uploads/1/3/2/6/132695746/2487115.pdf
- http://www.ascendercorp.com/
- http://www.ascendercorp.com/typedesigners.html
- https://cdn.shopify.com/s/files/1/0431/0990/8637/files/certificate_background_template_word.pdf
- https://cdn.shopify.com/s/files/1/0434/8729/7696/files/nawafivalu.pdf
- https://cdn.shopify.com/s/files/1/0434/7399/3890/files/entrepreneurship_ncert_book_class_11.pdf
- https://cdn.shopify.com/s/files/1/0431/1416/8480/files/mitabuvinodoweruxoge.pdf
- https://cdn.shopify.com/s/files/1/0429/6520/5141/files/fagexupuxosopupixeg.pdf
- https://cdn.shopify.com/s/files/1/0428/4035/9068/files/xunevumuzim.pdf
- https://cdn.shopify.com/s/files/1/0437/6156/5850/files/55349507769.pdf
- https://cdn.shopify.com/s/files/1/0432/7197/9172/files/96112655851.pdf
- https://cdn.shopify.com/s/files/1/0433/0956/4064/files/jowiduputejodebisobafusod.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_off0000740f.bincfbbbf5b9ba9461ec16661b29d2577a821a92af3fb69df36833b5388d82768bd |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x740F | 5780 bytes |
font_01_sfnt_off00008770.binaafeba22d7fb1391c25481373a51f43eac5b6f9f0fdbd087e49d1cd3ab5f9693 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x8770 | 11516 bytes |
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