MALICIOUS
202
Risk Score
Malware Insights
MITRE ATT&CK
T1566.002 Spearphishing Attachment
T1204.002 Malicious Link
The PDF contains a link farm and a specific malicious redirector URL, indicating a phishing or social engineering attempt. The document body, though heavily corrupted, contains text related to a medical atlas and a download lure, reinforcing the social engineering pretext. The primary malicious IOC is the redirector URL, which is used to funnel victims to further malicious content.
Machine Learning
- Nyx PDF Classifier malicious score 1.0000
Heuristics 6
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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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Visual download / call-to-action button lure low SE_DOWNLOAD_BUTTONDocument contains a call-to-action phrase ('Click here to download', 'Download Now', etc.) — low-signal unless other findings point to a malicious workflow
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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/wb?keyword=the%20wills%20eye%20hospital%20atlas%20of%20clinical%20ophthalmology%20pdf In PDF document text
- http://files.willowfree.ca/uploads/1/3/0/7/130740344/xiwodufa.pdfIn PDF document text
- http://files.mbabechuk.com/uploads/1/3/2/8/132815388/tovokejizipesoki.pdfIn PDF document text
- http://files.time2elevate.com/uploads/1/3/2/7/132712302/vopoxuvit.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/1/0437/5547/1006/files/dialectic_of_enlightenment_full_text.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0428/5012/3943/files/tipping_point_book_summary.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0430/9788/2773/files/18871929574.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0433/7070/9150/files/ziwowoxapometewulipena.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0432/5425/1670/files/fipigenafufuw.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0430/1442/2677/files/konuxirelevumof.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0428/4389/8019/files/xikar.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0436/5549/5833/files/66714414411.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0429/0763/1779/files/naduvenaleletoj.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0432/7863/1072/files/96679913118.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0428/9835/8432/files/kemisavixazesunomezixe.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_off000053fe.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x53FE | 3112 bytes |
SHA-256: 3bd7797ea1e2dd8cbac8194502f861d118f2a80b1f9fc943830c6b47c77455d0 |
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font_01_sfnt_off00005f17.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x5F17 | 5616 bytes |
SHA-256: fac247dfa2106b74255faed6c6c767eaa6e909427341a73c474d27151d82c55c |
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font_02_sfnt_off00007226.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x7226 | 10584 bytes |
SHA-256: b4da29ed15538403a8a4a63aa107d0a9dd844ad85734c785979123a010c88e3b |
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font_03_sfnt_off0000960d.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x960D | 16204 bytes |
SHA-256: 541fa2b6826b0add99b7d5a173ef1e6a5567607b5192f75b810eb17d6a563501 |
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