MALICIOUS
196
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1059.007 JavaScript
This PDF file contains a large number of external links, many of which appear to be part of an SEO link farm designed to redirect users. The heuristic 'PDF_SEO_LINK_FARM' and the presence of multiple unknown reputation URLs strongly suggest a phishing or malware distribution attempt. The ML classifier and ClamAV detection further support its malicious nature.
Machine Learning
- Nyx PDF Classifier malicious score 0.9998
Heuristics 6
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ClamAV: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0 critical CLAMAV_DETECTIONClamAV detected this file as malware: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0
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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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External URI info PDF_URIPDF contains an external URL action
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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://jacksth.ru/strik?utm_term=ap+lang+rhetorical+analysis+essay+practice PDF link annotation
- https://cdn.sqhk.co/vefomatakin/7iclgel/dream_daddy_characters_craig.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4420018/normal_6012914d22325.pdfIn PDF document text
- https://cdn.sqhk.co/samofetob/dhdjjie/do_crows_eat_eggs.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4471109/normal_60606a2010990.pdfIn PDF document text
- https://cdn.sqhk.co/sativomofij/8d5jcge/derasoxapepirowavej.pdfIn PDF document text
- https://cdn.sqhk.co/gebunemif/y7TrihI/mojoselasomumumisegot.pdfIn PDF document text
- https://static.s123-cdn-static.com/uploads/4370525/normal_5fe2097ea47bd.pdfIn PDF document text
- https://cdn.sqhk.co/dulinifijal/ibiiKge/free_challan_no_280_excel_format.pdfIn PDF document text
- https://static.s123-cdn-static.com/uploads/4420905/normal_5ff6769d3da7c.pdfIn PDF document text
- https://cdn.sqhk.co/waxuniwite/gOk7jEy/36340133067.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4370268/normal_6012348b8c8bf.pdfIn PDF document text
- https://cdn.sqhk.co/wirowanorax/SigLm3W/wokamegepubanepidulejawa.pdfIn PDF document text
- https://static.s123-cdn-static.com/uploads/4421780/normal_5fcae897747ba.pdfIn PDF document text
- https://cdn.sqhk.co/bisidilit/fbijjdc/speedy_heron_road.pdfIn PDF document text
- https://cdn.sqhk.co/zofizitene/U1njed0/adelantado_trilogy_book_3_free_download.pdfIn PDF document text
- https://cdn.sqhk.co/parikozug/ihifFJN/15540493802.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4374978/normal_5fd2c0c9bba5c.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4485828/normal_5fd64b992fdfd.pdfIn PDF document text
- http://www.ascendercorp.com/In PDF document text
- http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
- https://569961a5-e6b5-462d-8b38-7193d5e7b20b.filesusr.com/ugd/a37a2e_bf0fda3321284444a66aef83be726f49.pdf?index=trueIn PDF document text
- https://7133fc40-0b9c-4701-b953-e7fafc934b44.filesusr.com/ugd/70a38d_3bc69f918f5949628d4bdb01afa1f0f4.pdf?index=trueIn 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_off00010e28.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x10E28 | 5284 bytes |
SHA-256: c84e22e5af2c8d4fc7994a91359289e07364c75a964b9a778fe307945a3a93bb |
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font_01_sfnt_off0001202b.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x1202B | 10792 bytes |
SHA-256: fd96bc3816028a3fd34ad0b42bd8a2149c27e07119843b69174c10b6e496997e |
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