MALICIOUS
194
Risk Score
Malware Insights
MITRE ATT&CK
T1566.002 Spearphishing Attachment
T1059.001 PowerShell
T1204.002 Malicious Link
The PDF contains a mass external link farm, with a critical heuristic firing for a malicious redirector link. The primary malicious URL, https://ttraff.cc/pify?keyword=chagas+diagnostico+y+tratamiento+pdf, is designed to redirect users to potentially harmful content. The ML classifier also strongly indicated maliciousness.
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=chagas+diagnostico+y+tratamiento+pdf In PDF document text
- http://files.happyphoneunlocking.com/uploads/1/3/0/8/130874067/lesato.pdfIn PDF document text
- http://files.ashleyelainecooper.com/uploads/1/3/1/4/131437636/6651710.pdfIn PDF document text
- http://files.socialflash.com.au/uploads/1/3/1/1/131164081/7d4515.pdfIn PDF document text
- http://files.rockykramer.com/uploads/1/3/0/7/130776298/rubogewadim.pdfIn PDF document text
- http://files.tinsley-chiropractic.com/uploads/1/3/0/7/130738614/670539.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/1/0440/7492/6230/files/business_administration_lecture_notes.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0428/9835/8432/files/gowavofopinesifaremoka.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0435/5152/2977/files/mosaicos_colorea_por_numeros_editorial_gali.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0436/8482/3205/files/fotid.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0432/2007/4657/files/40028982988.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0433/8515/9843/files/45620299910.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0438/3545/7696/files/tafigimoda.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0428/2833/3212/files/principios_da_administrao_cientifica_taylor.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0436/9874/9608/files/javascript_ajax_response.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0438/8726/3899/files/wetibawujelezep.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0431/0204/4316/files/financial_accounting_for_undergraduates_3rd_edition.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0452/3058/8064/files/advertising_campaign_example.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_off000064e1.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x64E1 | 5544 bytes |
SHA-256: 7111f0fd595ad90457e591441800254aebb9992cd521c7ae61c8565900d2c9c1 |
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font_01_sfnt_off00007798.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x7798 | 11388 bytes |
SHA-256: ff8b3f79542fc44b18650df0b9be0499a597e1f078c0c10984b0aaee7bb965e3 |
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font_02_sfnt_off00009be5.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x9BE5 | 16404 bytes |
SHA-256: 42039e660cd6fa852c80f86e0477e1527f4b4356d0806b35c1044914cf260aa3 |
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