MALICIOUS
164
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
This PDF file was flagged by ClamAV as a phishing trojan. It contains embedded JavaScript and numerous external URIs, many of which point to compromised CMS uploads or disposable hosting, indicating a link farm designed to redirect users. The ML classifier also strongly indicated maliciousness. The embedded JavaScript likely facilitates the redirection or further malicious activity.
Machine Learning
- Nyx PDF Classifier malicious score 0.9978
Heuristics 7
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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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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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Embedded JS stream low PDF_JSPDF references a /JS stream. Generic JavaScript is common in benign forms; specific dangerous APIs are scored by separate rules.
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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://nomylo.ru/uplcv?utm_term=can+i+play+fortnite+on+this+phone
- http://ezclasssites.com/var/wwww/dev-ezclasssites-com/data/files/28512863999.pdf
- http://honeycontacts.com/uploades/userfiles/file/24687688623.pdf
- https://ballestermultiservicios.com/wp-content/plugins/formcraft/file-upload/server/content/files/161313bfb22c6d---54210441162.pdf
- https://nestsearch.in/admin/uploads/file/vediwibemusasomapozozaw.pdf
- http://kaplanpm.com/wp-content/plugins/formcraft/file-upload/server/content/files/161411467aa9fc---vizefebi.pdf
- http://toyotaquangninh.org/data/dulieu/files/58713096223.pdf
- http://ckrestaurantgroup.com/ckfinder/userfiles/files/9771212349.pdf
- http://srcchaika.ru/files/uploads/files/33194027026.pdf
- http://avon-bratislava.com/files/files/zisozubun.pdf
- http://yongchengtech.com/uploads/files/202109050508157875.pdf
- https://nls.vn/upload/files/paxifaxebimebigamusisedem.pdf
- http://moonlightmontessori.com/upload/files/19810310983.pdf
- http://szamosiszerviz.hu/feltoltott/files/taxugawabowaxopetazale.pdf
- https://raovat72.vn/uploads/news_file/koxafajituloweno.pdf
- https://zabulgaria.org/userfiles/file/73362892330.pdf
- http://roomyab.ir/basefile/roomyabir/files/50177915207.pdf
- http://dennehylaw.com/customer/3/d/9/3d947ad6ce2568d98b832ccf5548371bFile/85007837991.pdf
- http://nagakuratrading.com/js/upload/files/29660068065.pdf
- http://akademia-jedenastka.pl/zdjecia/fck/file/kovujoxuganixirove.pdf
- http://studioriboldi.eu/userfiles/files/dirofakotemiwudug.pdf
- http://www.christinemartin.co.uk/wp-content/plugins/formcraft/file-upload/server/content/files/161319f332483d---11122690907.pdf
- https://geneticapanama.com/userfiles/file/32291844167.pdf
- https://santehsevast.ru/userfiles/files/95087543321.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_off0000d06f.bin9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xD06F | 16792 bytes |
font_01_sfnt_off0000e881.bincdfca210118b6cef57d67ce60496fdd7cf6f4903eb69658574cc2ef8190b34cc |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xE881 | 18796 bytes |
font_02_sfnt_off00011889.bin3387f3d10fd243bc6426b261cbebdff2d06cce8b1b6647fd917755b7b2c60893 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x11889 | 10600 bytes |
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