MALICIOUS
164
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
The sample contains embedded JavaScript, which is often used to redirect users to malicious websites. Several heuristics indicate the PDF is part of a link farm, with many URLs pointing to compromised CMS uploads or disposable hosting, suggesting a phishing or malware distribution campaign. The ML classifier and ClamAV detection strongly indicate malicious intent.
Machine Learning
- Nyx PDF Classifier malicious score 0.9982
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://huntic.ru/uplcv?utm_term=parasite+full+movie+with+english+subtitles
- https://alirezamirmohammadi.com/images/upload/files/wanenoniwewinudosedobolu.pdf
- http://softtox.pl/new/userfiles/file/pakapavejojanuvexoxuke.pdf
- http://ever0036.com/assets/uploads/ckedit/files/20210907212253.pdf
- https://chatsystem.site/js/ckfinder/userfiles/files/50322211621.pdf
- https://nieruchomosciturystyczne.eu/files/file/sajuxedidusamenovekonifa.pdf
- http://kxzyjy.com/CKEdit/upload/files/tesoliwavukijadilusanupa.pdf
- https://mkting.com.co/wp-content/plugins/super-forms/uploads/php/files/deda0cedb56c8cdfc7317bb2ce73a8fe/18839467313.pdf
- https://webmodels.studio/wp-content/plugins/formcraft/file-upload/server/content/files/1613185f0c57fe---79483677986.pdf
- https://rippa.pt/files/file/71648012218.pdf
- https://sofupingame.net/calisma2/files/uploads/78735128625.pdf
- http://selfmadefilms.nl/userfiles/files/xikixerutekaf.pdf
- http://narzedziascierne.eu/Upload/file/91595064560.pdf
- https://campfun.myhost888.com/upload/ckeditor/files/72660982695.pdf
- http://tries.cz/media/images/upload/file/susurovuz.pdf
- http://thainightjob.com/ckfinder/userfiles/files/sesozutawuxegoverabi.pdf
- https://indicaperu.com/userfiles/file/8781220657.pdf
- http://tunecharts.com/userfiles/file/wetapapepixu.pdf
- http://www.holderit.com/wp-content/plugins/formcraft/file-upload/server/content/files/161494db9e89c0---33130377222.pdf
- http://avtosfera28.ru/userfiles/file/12874936571.pdf
- http://pensionpoint.cz/userfiles/files/72353918315.pdf
- http://asr-net.ru/uploads/files/relufofab.pdf
- http://www.victorian-manor.co.za/wp-content/plugins/formcraft/file-upload/server/content/files/161333e264367b---4462552361.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_off0000b11f.bine7a5b95fd15436685bd66c09776a3bc87a41517e81f103fb29324e8d42d7da78 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xB11F | 16720 bytes |
font_01_sfnt_off0000db88.bin9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xDB88 | 16792 bytes |
font_02_sfnt_off0000f39f.bin01ca3709a0ea6bfc53aae49479df1e1668ab592374d871d0d377cae10aa80277 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xF39F | 11056 bytes |
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