MALICIOUS
194
Risk Score
Malware Insights
MITRE ATT&CK
T1566.002 Spearphishing Attachment
T1204.002 Malicious Link
The PDF file contains numerous embedded links, with a critical heuristic firing for PDF_MALICIOUS_REDIRECTOR_LINK indicating a link to traff.com, a known malicious redirector. The document body, though partially corrupted, contains text suggesting it is a "Examen ceneval simulador pdf", likely a lure to entice users to click the malicious link. The PDF_SEO_LINK_FARM heuristic further indicates a large number of external links, many hosted on Shopify, suggesting a link farm designed to improve search engine ranking for malicious content.
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.com/pify?keyword=examen+ceneval+simulador+pdf In PDF document text
- http://zizerip.4u2believe.com/uploads/1/3/1/4/131438641/fiwokonuzelifa.pdfIn PDF document text
- http://files.luisagonzalez-interiordesign.com/uploads/1/3/0/7/130740257/kiposurofob.pdfIn PDF document text
- http://files.corijacobs.com/uploads/1/3/1/3/131380438/zinopexum.pdfIn PDF document text
- http://files.allseeingeyedesign.com/uploads/1/3/1/8/131871740/jojadetudexu-dupotagu-furoxatosuw-dowiwek.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/1/0430/8815/0690/files/69441328640.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0438/4758/1856/files/antologia_corta_de_poemas_pdf.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0433/0687/7080/files/kexuxedixu.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0434/5584/0422/files/95181644755.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0431/8684/7903/files/25712459560.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0432/2384/2983/files/gaxunigumuto.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0428/1312/8867/files/49258107381.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0428/9835/8432/files/kilezibuvi.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0430/9372/1255/files/31306601521.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0437/2522/6152/files/50888809800.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0430/7750/1095/files/96090118666.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0438/9981/4040/files/converting_kindle_content_to.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
- http://dejavu.sourceforge.netIn PDF document text
- http://dejavu.sourceforge.net/wiki/index.php/LicenseIn PDF document text
Extracted artifacts 3
Files carved from inside the sample during analysis.
| Filename | Kind | Source | Size |
|---|---|---|---|
font_00_sfnt_off000074e9.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x74E9 | 5384 bytes |
SHA-256: 6fe4cf096270368f76423ab4df5ce078a275763c84b7ed8682b0da8881ed1b1f |
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font_01_sfnt_off0000872d.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x872D | 11856 bytes |
SHA-256: 0265974e0371f270c05a430fee6bf12bdb119bcb9fd740c06cd19850e6208113 |
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font_02_sfnt_off0000ad92.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xAD92 | 16312 bytes |
SHA-256: 028dbaa76d48ae99b02248bacea50134e27ed131f5dd39e25ac401de8961e19b |
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