MALICIOUS
194
Risk Score
Malware Insights
MITRE ATT&CK
T1566.002 Spearphishing Attachment
T1204.002 Malicious Link
The PDF file contains a large number of embedded links, many of which point to external PDF files, indicating a link farm. One of the primary links redirects to a known malicious URL, ttraff.com, which is likely used for further malicious redirection. The document body, though partially corrupted, contains text related to 'Ejercicios aeróbicos pdf' and the authoring application, suggesting a lure to disguise the malicious intent.
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=ejercicios+aer%25C3%25B3bicos+pdf In PDF document text
- http://files.brightgreenpossibilities.com/uploads/1/3/1/8/131856276/1865593.pdfIn PDF document text
- http://files.dreamaginationrr.com/uploads/1/3/1/4/131437599/minitanowarurige.pdfIn PDF document text
- http://files.depaulsfa.com/uploads/1/3/2/3/132302710/9151206.pdfIn PDF document text
- http://files.avoncommunityheritagefestival.org/uploads/1/3/1/3/131380342/devatunawenos.pdfIn PDF document text
- http://files.pfalzerwald.com/uploads/1/3/0/7/130775868/5215085.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/1/0433/0491/1006/files/sifufokamofuwikewo.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0434/5528/3366/files/64503132199.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0433/5910/9279/files/60941767979.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0432/4638/7367/files/34763533199.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0429/7926/2623/files/pitcher_fl_studio.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0432/9180/3801/files/borislav_stankovic_necista_krv.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0432/8469/3160/files/tinuzasavedubizixe.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0430/8451/3440/files/periodic_table_of_elements_list.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0431/5483/3557/files/38161021345.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0431/4542/9160/files/92951978379.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0433/0071/6694/files/77849951588.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0431/5381/7762/files/rilumufomijax.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0428/2561/3468/files/favugamedenaku.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0427/6181/4172/files/wunemolopane.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_off00006392.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x6392 | 5428 bytes |
SHA-256: 209bc64f29632a068cd766ae5f0a2af22d1223e663e6e9c1caf9caf514642cdb |
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font_01_sfnt_off000075d4.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x75D4 | 10912 bytes |
SHA-256: 881febeba31990dfb1561ea3819c7594bc13b8434a076908d11b8a9031223b43 |
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