MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1203 Exploitation for Client Execution
The PDF file was detected as malicious by ClamAV and an ML classifier, indicating a high likelihood of malicious intent. It contains numerous embedded URLs that point to various websites, many of which appear to be compromised or disposable hosting, suggesting a link farm designed to distribute malicious content or phish users. The heuristic 'PDF_SEO_DISPOSABLE_LINK_FARM' specifically highlights this behavior.
Machine Learning
- Nyx PDF Classifier malicious score 0.9975
Heuristics 6
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ClamAV: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0 critical CLAMAV_DETECTIONClamAV detected this file as malware: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0
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PDF link farm points to compromised-WordPress upload storage medium PDF_COMPROMISED_CMS_UPLOAD_LINK_FARMPDF contains multiple clickable links, across many distinct hosts, whose targets are random-slug files parked in the upload directories of vulnerable WordPress form plugins (FormCraft, Super Forms). This is the hallmark of the 'free document/template' SEO phishing PDF family, which ranks for search queries and routes users into payload/redirect chains hosted on compromised sites. The PDF itself carries no exploit — the risk is the linked destinations.
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Small PDF is a non-clustered link farm on disposable hosting medium PDF_SEO_DISPOSABLE_LINK_FARMSmall PDF contains many clickable external PDF links spread thin across many distinct hosts (no single dominant host), corroborated by a utm_term SEO-redirector link and/or links parked on free/disposable content hosts. This is the 'free document/template' SEO phishing PDF family, which ranks for search queries and routes users into payload/redirect chains, rather than a normal document citation pattern. The PDF itself carries no exploit — the risk is the linked destinations.
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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://laborke.ru/uplcv?utm_term=latest+bollywood+hollywood+dvdrip
- https://hopefor.today/wp-content/plugins/super-forms/uploads/php/files/06264480f3567517e2cd77c7b1549e0c/19887927771.pdf
- https://eijo.in/ckfinder/userfiles/files/17028580688.pdf
- https://aldapa.eus/files/galeria/files/86469484770.pdf
- http://vishwkarmaenterprises.com/webroot/img/userfiles/files/bifudubinuvuxedefenibo.pdf
- https://ceccargiurgiu.ro/userfiles/file/fakotitadufirixuta.pdf
- https://hkpefa.org/editor_upload/file/81120618502.pdf
- http://localhomesales.com.au/wp-content/plugins/formcraft/file-upload/server/content/files/161305fa8c303c---76026426993.pdf
- http://pwmtqatar.net/userfiles/file/tapezetadifejarubiton.pdf
- https://www.bocamvigliesrooms.com/wp-content/plugins/super-forms/uploads/php/files/f12746d204cf53245fc465b1aac531f6/97034513101.pdf
- http://baltic-rt.ru/ckfinder/userfiles/files/gurog.pdf
- http://babijie.com/upload_fck/file/2021-9-8/20210908052704225908.pdf
- http://hc6999.com/userfiles/files/wobereseroxixolume.pdf
- https://calienglish.com/ckfinder/images_store/files/74615542394.pdf
- https://stradatextiles.com/upload/ckfinder/files/darenadelasumupenakivi.pdf
- https://xn--1--8kcai1ck2bs.xn--p1ai/wp-content/plugins/super-forms/uploads/php/files/1ab20dd5e5ce74b505012ac3e49935f5/fesonapozixa.pdf
- http://datacomsystems.cz/userfiles/file/luzegeribunirejubosogis.pdf
- http://mesterteto.hu/userfiles/file/98346403688.pdf
- https://beldapin.com/calisma2/files/uploads/24398170149.pdf
- http://bsinteriordesigner.com/userfiles/files/5593555681.pdf
- http://angel-conference.org/upload_fck/file/2021-9-7/20210907040407849875.pdf
- https://robindayne.com/ckfinder/userfiles/files/82581902772.pdf
- https://m-astar.com/UserFiles/files/80870127966.pdf
- https://kuzeyilac.com/resimler/files/wesol.pdf
- http://solarexperten.ch/fckeditor/editor/images/file/5549542075.pdf
- https://rajatotogroup2.com/contents/files/78205935346.pdf
- http://www.w3.org/1999/02/22-rdf-syntax-ns#
- http://purl.org/dc/elements/1.1/
- http://ns.adobe.com/pdf/1.3/
- http://ns.adobe.com/xap/1.0/
- http://ns.adobe.com/xap/1.0/mm/
- http://ns.adobe.com/xap/1.0/rights/
- http://dejavu.sourceforge.net
- http://dejavu.sourceforge.net/wiki/index.php/License
Extracted artifacts 3
Files carved from inside the sample during analysis.
| Filename | Kind | Source | Size |
|---|---|---|---|
font_00_sfnt_off0000b52b.bin9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xB52B | 16792 bytes |
font_01_sfnt_off0000cd42.bin6833eb0f70b875f8b09fb685edfbd98c9acc9cc9d84624d317d20f44911189fa |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xCD42 | 10748 bytes |
font_02_sfnt_off0000e5f9.bin377cba21d00245789fac3e2534347040166b527c80c41bfe27a0700e3cf9e42a |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xE5F9 | 15212 bytes |
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