MALICIOUS
194
Risk Score
Malware Insights
MITRE ATT&CK
T1566.002 Spearphishing Attachment
T1204.002 Malicious Link
The PDF file contains a deceptive lure promising free downloads of civil engineering books. It embeds multiple links, with a critical heuristic firing indicating a malicious redirector. The primary malicious URL, 'https://ttraff.ru/pify?keyword=civil+engineering+drawing+pdf+books+free+download', is designed to redirect users to potentially harmful content. While many Shopify links are present, one is flagged as a redirector, and the document body itself contains the malicious URL.
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.ru/pify?keyword=civil+engineering+drawing+pdf+books+free+download In PDF document text
- http://files.dcsav.org/uploads/1/3/1/1/131163564/389e4556c1d61.pdfIn PDF document text
- http://files.bedfellowsmagazine.com/uploads/1/3/1/0/131069934/9000152.pdfIn PDF document text
- http://files.federicoroncarolo.com/uploads/1/3/0/7/130776152/jokamoluvo-wuludumodor-sutefivijirivel.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/1/0433/0507/4838/files/xesenaterituxosanumen.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0428/5415/4406/files/56701883800.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0444/4015/8374/files/linus_tech_tips_instagram.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0431/5630/8123/files/55877793574.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0427/9923/5228/files/luvikumefoporedufa.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0438/9044/2395/files/86327552108.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0432/4245/5197/files/zenefutixamawekopul.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0434/7399/3890/files/zukufekekidol.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0429/6422/2101/files/buwakuvunizune.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0428/9291/8947/files/kiwusoguxexevoba.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0431/0892/5600/files/71926721494.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0435/4428/1247/files/xasezolawelev.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0430/9752/2329/files/58476850388.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0432/9907/8304/files/44579789547.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 3
Files carved from inside the sample during analysis.
| Filename | Kind | Source | Size |
|---|---|---|---|
font_00_sfnt_off00005f1a.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x5F1A | 5468 bytes |
SHA-256: 2ff508d1e58630ecca3eb4c348b9e67ab11e810c9aec8952b817f825bbb2fdcc |
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font_01_sfnt_off000071d0.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x71D0 | 2116 bytes |
SHA-256: 33d80b5e357abfa3ea91f5eff18928953f8e36d8e9a7aea158c838e8ae756dd9 |
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font_02_sfnt_off00007b9a.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x7B9A | 15084 bytes |
SHA-256: 5944a0550f487f328bd7a065ba9ce1efc59e59cafe572541ca9732489d51e691 |
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