MALICIOUS
194
Risk Score
Malware Insights
MITRE ATT&CK
T1566.002 Spearphishing Attachment
T1204.002 Malicious Link
The PDF file contains numerous embedded links, a technique often used in SEO link farms to artificially boost search engine rankings or distribute malicious content. One critical heuristic identified a PDF redirector link pointing to 'ttraff.cc', which is known malicious infrastructure. The document body, though heavily obfuscated, contains the same redirector URL and a benign-looking Shopify URL, suggesting a lure to a malicious site. No scripts were extracted, but the primary attack pattern involves redirecting users through a chain of links, ultimately leading to a malicious destination.
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=ortopedia+pediatrica+staheli+pdf+descargar In PDF document text
- http://files.bestmassageinpensacola.com/uploads/1/3/1/4/131406563/fedozuraxubil_rogekefafej_pubuwumunik_paduwapiwuji.pdfIn PDF document text
- http://files.barrvillemc.org/uploads/1/3/0/7/130776118/423244.pdfIn PDF document text
- http://files.btefit.com/uploads/1/3/1/8/131856353/04270f8f0e.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/1/0433/5403/0231/files/10610418495.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0431/5286/7494/files/vasafizop.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0441/0785/8072/files/luxekudefolireferigawek.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0433/4495/3509/files/79356310860.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0438/9001/6424/files/phonics_worksheets_2nd_grade.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0434/5744/6038/files/ctet_answer_key_2020.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0432/7161/8723/files/zoresapedubaji.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0437/9911/7986/files/48350358638.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0430/5174/5442/files/kexanonipeje.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0432/2649/7182/files/49518898420.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0427/6640/1692/files/aptitude_test_questions_and_answers_for_software_companies.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0431/3926/8769/files/ut_austin_tuition_bill.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0428/9835/8432/files/tobilefoseparavako.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0434/1760/0156/files/lagesinilugakututi.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_off00004a35.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x4A35 | 5444 bytes |
SHA-256: 2d24d6646d01c4a3e9a22f2c1850a2d6b1661a732c151bbbd8db74f45f765a58 |
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font_01_sfnt_off00005cb7.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x5CB7 | 9592 bytes |
SHA-256: 1f4554ef5e70933732a70b27a6442265e2e5125266e934edf204acfa942aed03 |
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