MALICIOUS
210
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1059.007 JavaScript
T1203 Exploitation for Client Execution
The PDF file contains numerous embedded links and a primary redirector URL pointing to malicious infrastructure. The document body, though heavily obfuscated, contains the lure 'liposome preparation protocol pdf' and the malicious URL, suggesting a phishing or content-luring attack. The ML classifier strongly flagged this PDF as malicious, and the presence of redirector links indicates an attempt to lead the user to a compromised or malicious site.
Machine Learning
- Nyx PDF Classifier malicious score 1.0000
Heuristics 7
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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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Urgency / deadline lure low SE_URGENCY_LUREDocument contains urgency or deadline language ('account will be terminated', 'action required within 24 hours', etc.) — useful context, but low-signal without other findings
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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.ru/wb?keyword=liposome%20preparation%20protocol%20pdf In PDF document text
- http://fibule.kaylamakeuppro.com/uploads/1/3/0/9/130969352/3421016.pdfIn PDF document text
- http://files.neeleyandneeley.com/uploads/1/3/2/6/132681672/1235787.pdfIn PDF document text
- http://files.evepinsonnault.com/uploads/1/3/2/6/132681672/jugipujunuxex.pdfIn PDF document text
- http://godoleje.thephronetic.com/uploads/1/3/1/4/131452903/1c5d4f303880dc0.pdfIn PDF document text
- http://files.childrenscoalitionac.org/uploads/1/3/1/3/131379343/0eb635be0c7.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/1/0428/9835/8432/files/81159011373.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0433/0645/1094/files/familias_de_hemiptera.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0435/4922/9220/files/54255003621.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0428/8249/8716/files/47612062973.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0430/6193/6285/files/57948291284.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0435/6295/8997/files/hdfc_mutual_fund_redemption_form.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0431/3153/5524/files/93531979289.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0430/7550/2234/files/19286804726.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0427/5650/5756/files/waxukifusiroritiz.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0431/0004/5469/files/46777871287.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0431/7921/2959/files/apa_6th_edition_download.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0432/8439/8244/files/94399307459.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_off0000b125.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xB125 | 5240 bytes |
SHA-256: 31939a0ca0662ba785d447dbf7e81163a84af701482143760e4deae652fe0351 |
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font_01_sfnt_off0000c2db.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xC2DB | 10700 bytes |
SHA-256: cbf68e72983b6f3902d2c26071379d31ca6fbd9285bc9cb65ad198143f49942c |
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