MALICIOUS
194
Risk Score
Malware Insights
MITRE ATT&CK
T1566.002 Spearphishing Attachment
T1059.001 PowerShell
The PDF contains a critical heuristic firing for a malicious redirector link, specifically 'https://ttraff.cc/pify?keyword=libros+para+aprender+ingles+leyendo+pdf'. This indicates the document's primary purpose is to redirect users to malicious infrastructure. The presence of a large number of external PDF links, many pointing to Shopify domains, suggests a link farm or SEO poisoning technique to mask the malicious intent. No scripts were extracted, but the PDF structure and embedded URLs strongly suggest a phishing or malware delivery attempt.
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=libros+para+aprender+ingles+leyendo+pdf In PDF document text
- http://pawurefiz.setgogym.co.uk/uploads/1/3/1/1/131164250/23ac6deb5b4ed.pdfIn PDF document text
- http://files.msunavs.org/uploads/1/3/1/8/131856433/jirifadaf_xogavafugof_kanawafef.pdfIn PDF document text
- http://tuxagur.dldtassociates.com/uploads/1/3/1/3/131380213/pizuj.pdfIn PDF document text
- http://files.hkminimefencing.com/uploads/1/3/2/6/132681150/5640214.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/1/0431/5407/9904/files/50247780729.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0433/0127/3758/files/26875468616.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0432/0195/3952/files/vimeronelurelafibapif.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0432/6385/2712/files/141707869.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0434/2795/4840/files/risijomodowirik.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0431/2875/0241/files/stardew_valley_mods.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0438/3762/0381/files/28619169282.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0427/6341/9814/files/discussion_essay_example.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0435/7337/9230/files/31176358441.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0432/6942/3257/files/13011749163.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0435/6407/3128/files/17841691037.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0427/7954/1671/files/157454649.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0435/8812/4829/files/jesunanugokub.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0433/9014/0581/files/7574711824.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0433/4478/9669/files/46437219571.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_off00006a62.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x6A62 | 5100 bytes |
SHA-256: 30954f3b79b427322544a582e20f69f1e0140cfac0d2b288dd851e04e5ea8106 |
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font_01_sfnt_off00007bb8.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x7BB8 | 11008 bytes |
SHA-256: 3a4b2e4b25b80d4d0a2aa8b971eeff230d4e7f6139b4193c5c9fbb6b8cf127ef |
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font_02_sfnt_off00009f61.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x9F61 | 4324 bytes |
SHA-256: 9f355172d696dda274cac500966718f112ce76951f19577ac4888987ea6471b2 |
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