MALICIOUS
194
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1059.007 JavaScript
This PDF document employs a "free download" lure, masquerading as an "Ib biology review book pdf" to trick users into clicking embedded links. Several of these links lead to a malicious redirector, indicating a phishing or malware distribution attempt. The ML classifier strongly supports the malicious verdict.
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=ib+biology+review+book+pdf In PDF document text
- http://files.jrsamshoes.com/uploads/1/3/2/6/132680974/4baa4.pdfIn PDF document text
- http://xupusab.dougpurnellart.com/uploads/1/3/0/7/130738764/854976d0.pdfIn PDF document text
- http://files.redesignforwholefamilies.com/uploads/1/3/1/8/131857193/jowudakavesof-rusodisoton-zofokizubolas.pdfIn PDF document text
- http://files.areyouben.com/uploads/1/3/1/3/131384286/rijudafakadexob.pdfIn PDF document text
- http://files.therinkbattlecreek.com/uploads/1/3/1/3/131398406/4802581.pdfIn PDF document text
- http://www.ascendercorp.com/In PDF document text
- http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
- http://www.daltonmaag.com/In PDF document text
- https://cdn.shopify.com/s/files/1/0431/4539/6386/files/zidevagevo.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0438/0724/4450/files/tumidolov.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0437/5927/2090/files/rogefe.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0428/9835/8432/files/24375498268.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0435/2393/2311/files/sabowe.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0428/6667/1782/files/legir.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0438/1684/5469/files/kirefepapurixotekofeveja.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0429/6769/5511/files/43640932613.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0429/8270/3257/files/94266017588.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0438/2546/3456/files/jofeduzimajotuxatidaso.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0436/6503/1321/files/gesetadaxurorodefuk.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0434/8005/5958/files/minecraft_set_time_day.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_off00007183.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x7183 | 4816 bytes |
SHA-256: adffc895431ed1671787314392962de1479dc6f6de5ffa3f17a71ac64b4f6ac2 |
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font_01_sfnt_off00008203.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x8203 | 10548 bytes |
SHA-256: 00a1e16e5e8a26ed74364998e809ba6c6f7ef4a6af1dbd8fc5d712bf93c98e96 |
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font_02_sfnt_off0000a602.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xA602 | 4324 bytes |
SHA-256: 4fcfa7c68d76e23b667942a3ac892d2d5d88346478daafc61479ad4df4af3dd3 |
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