MALICIOUS
194
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1059.001 PowerShell
The PDF contains a significant number of embedded URLs, with a critical heuristic firing indicating a link to known malicious redirector infrastructure. Another critical heuristic identified a large external PDF link farm, suggesting a potential SEO manipulation or content distribution scheme. The ML classifier also strongly indicated maliciousness. While no scripts were extracted, the sheer volume of links and the presence of a malicious redirector point towards a delivery mechanism for further malicious content.
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=masterpieces+library+architecture+design+pdf In PDF document text
- http://files.colourismyworld.com/uploads/1/3/2/3/132302749/xotedo.pdfIn PDF document text
- http://files.freedomcommunity.org/uploads/1/3/1/0/131070846/rogebateketufel.pdfIn PDF document text
- http://mometu.bagsofnaturestore.com/uploads/1/3/1/4/131453060/wefanotigowix.pdfIn PDF document text
- http://files.storywings.net/uploads/1/3/0/7/130775403/xumoboxof-jasasavowogarag-lamizexo-wuwaxoromit.pdfIn PDF document text
- http://files.rearchitect-ma.com/uploads/1/3/0/8/130874330/528849.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/1/0434/4807/4405/files/bezejizigijijij.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0436/0588/5090/files/lelojatisoxusifibig.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0428/8321/9619/files/14932937193.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0431/2937/2832/files/56332428443.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0433/1687/1333/files/movoruximidido.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0433/0687/7080/files/49090326843.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0433/5733/9807/files/tufoverajamawibefito.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0432/5359/6310/files/xazoki.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0444/6345/6423/files/administrasi_tes_ist.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0431/0512/4516/files/politik_pluralisme_indonesia.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0438/9342/4283/files/munonoximifura.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0431/6826/8456/files/70545482913.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0439/9906/8310/files/calendario_de_octubre_2020.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_off000054c6.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x54C6 | 5664 bytes |
SHA-256: 9921c988ec80c47954ce1df1e35ab3eee73b9b115d5264997ed77d558ee23010 |
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font_01_sfnt_off00006819.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x6819 | 10060 bytes |
SHA-256: 3e1b2835b7634d698df585a23bfcd234087f89f4215ac22a22bc0d27b4d6ac21 |
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