MALICIOUS
194
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
The PDF contains numerous links, many pointing to redirectors and SEO link farms, indicating a phishing or scam attempt. The primary redirector URL, 'https://ttraff.com/pify?keyword=carpeta+definicion+informatica', is flagged as malicious. The document body, though heavily obfuscated, contains this URL and other benign-looking PDF links, likely to appear legitimate. The ML classifier strongly supports the malicious verdict.
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=carpeta+definicion+informatica In PDF document text
- http://files.sweetshoppeleduc.com/uploads/1/3/0/8/130814169/da69f903c7f.pdfIn PDF document text
- http://files.chcmarketplace.com/uploads/1/3/0/7/130739826/8775886.pdfIn PDF document text
- http://tinafeza.randolphwalters.com/uploads/1/3/1/6/131606490/rijol.pdfIn PDF document text
- http://filit.visedal.org/uploads/1/3/0/7/130738894/logopo.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/1/0438/8506/8456/files/articles_of_association_uk.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0437/6474/4343/files/knowing_god_by_name_david_wilkerson.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0428/9134/6079/files/nucleophilic_acyl_substitution_reaction.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0428/9835/8432/files/11067845032.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0434/2520/2332/files/character_development_sheet.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0433/4849/2438/files/blood_groups_and_red_cell_antigens.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0435/6263/1326/files/grey_s_anatomy_episode_guide_derek_dies.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0433/0684/4315/files/bulavup.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0440/2728/1558/files/agile_organization.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0430/6223/1201/files/breckenridge_weather_15_day_forecast.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0437/4121/6929/files/91374662276.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0434/1746/9086/files/66081440555.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0431/0306/0128/files/air_pollution_essay_in_kannada.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0438/2759/3376/files/catholic_study_bible_donald_senior.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 2
Files carved from inside the sample during analysis.
| Filename | Kind | Source | Size |
|---|---|---|---|
font_00_sfnt_off00006087.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x6087 | 4996 bytes |
SHA-256: 985320fa10f12368caeedc0c3c0716604f2ca7ab9c107d81b2ecfed1c535ecc3 |
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font_01_sfnt_off0000716d.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x716D | 10252 bytes |
SHA-256: 549aa2cfc93f9ec8a3681e3b0788c83656610118a949989f11c2b5110076dca3 |
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