MALICIOUS
194
Risk Score
Malware Insights
MITRE ATT&CK
T1566.002 Spearphishing Attachment
T1204.002 Malicious Link
The PDF file contains a significant number of embedded links, with a critical heuristic firing indicating a link farm. One of these links, 'https://ttraff.cc/pify?keyword=bases+matematicas+ufabc+pdf', points to known malicious redirector infrastructure. The document body is heavily obfuscated and does not provide clear textual lures, but the sheer volume of links suggests a malicious intent to drive traffic to potentially harmful sites.
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=bases+matematicas+ufabc+pdf In PDF document text
- http://files.payettevalleyfoodconnection.com/uploads/1/3/1/6/131637362/1d7854a.pdfIn PDF document text
- http://files.bondybluereview.com/uploads/1/3/0/8/130874122/jalokibo.pdfIn PDF document text
- http://files.vidarthegame.com/uploads/1/3/0/8/130874023/zexokef.pdfIn PDF document text
- http://files.bhspantherplayhouse.org/uploads/1/3/1/4/131437513/bosutaxejolowo.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/1/0432/1571/6516/files/tokofaweb.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0432/3429/5966/files/vatewe.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0433/7680/3990/files/penalekunolalamudi.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0428/2885/7503/files/wegobur.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0428/5733/2895/files/torevipofomujanazomit.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0430/4306/1913/files/zunomixapewixipozov.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0427/6197/8023/files/zaxanedukomote.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0433/0687/7080/files/56346524494.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0434/1743/6327/files/zoxulamo.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0429/9735/0554/files/vozagadabojojiguko.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0429/7215/1959/files/33286017662.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0428/4927/1975/files/mikizixidugobap.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0432/7122/5494/files/27785996404.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 4
Files carved from inside the sample during analysis.
| Filename | Kind | Source | Size |
|---|---|---|---|
font_00_sfnt_off0000776c.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x776C | 5028 bytes |
SHA-256: f6f7c110d5c4af484d81b6d930cfbb30229bed317a051358fb29f9fe2c4452b6 |
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font_01_sfnt_off0000887d.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x887D | 2788 bytes |
SHA-256: e46dc6523a634532b9ee15db74e7256667bebfdc3042db823a242b8b44bfb9ec |
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font_02_sfnt_off00009479.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x9479 | 10732 bytes |
SHA-256: bc029c716b305b8a163ee5483a4d63683e552d42ed14ee3b2b82c076c282e0c4 |
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font_03_sfnt_off0000b929.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xB929 | 16036 bytes |
SHA-256: 35d3440dae1ebc896564e4e6f70ea95aa3a30a1ac603c7fffbb21b68b8b72e2f |
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