MALICIOUS
182
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
The PDF contains embedded JavaScript and a large number of external links, many pointing to compromised CMS upload directories. The document body is heavily obfuscated, but the heuristics indicate it's an image-based lure designed to trick users into clicking links. The embedded JavaScript likely facilitates redirection to malicious sites, as suggested by the ClamAV detection and ML classifier.
Machine Learning
- Nyx PDF Classifier malicious score 0.6644
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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Image-only document with action trigger (screenshot lure) medium PDF_IMAGE_LUREPDF has 1 image(s), only 0 text block(s), carries a click-outward action, and is only 62 KB — typical shape of a phishing lure where a full-page screenshot hides a clickable button that launches or submits to an attacker URL.
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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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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://krisoc.ru/uplcv?utm_term=dating+sim+games+for+android+offline PDF link annotation
- https://lightupalife.org.uk/wp-content/plugins/formcraft/file-upload/server/content/files/161468dbf6097c---81468405057.pdfIn PDF document text
- http://www.leads-bd.org/app/webroot/js/ckfinder/userfiles/files/gazukarijibesiwoka.pdfIn PDF document text
- http://phongthuydotho.vn/upload/files/47695940384.pdfIn PDF document text
- http://doxetrilinh.com/media/ftp/file/82590137258.pdfIn PDF document text
- http://pappteam.hu/userfiles/file/fariwamedisolomizolid.pdfIn PDF document text
- http://kubabus.cz/novy-web/upload/file/paneriturozep.pdfIn PDF document text
- http://www.cpiequipos.com/assets/images/user_files/files/fitubakivopoge.pdfIn PDF document text
- http://capriololaw.com/customer/3/d/9/3d947ad6ce2568d98b832ccf5548371bFile/57021658471.pdfIn PDF document text
- https://sitycare.com/FCK-UserFiles/files/pojakutoxudusolipoli.pdfIn PDF document text
- https://nevjegyzek.eu/uploads/file/77201438498.pdfIn PDF document text
- https://daiichitravel.com/uploads/news_file/48458169013.pdfIn PDF document text
- https://dondepodemosir.com/userfiles/file/diviforosas.pdfIn PDF document text
- http://vicc.huh.hu/UserFiles/File/16670256611.pdfIn PDF document text
- https://evrenmentese.com/upload/ckfinder/files/tarolanixevelufido.pdfIn PDF document text
- https://vmkstroi.ru/wp-content/plugins/super-forms/uploads/php/files/22ae862cf39b4789d41ccf5ddd221cbe/6437582774.pdfIn PDF document text
- http://syntrend.critical.tw/upload/files/vowada.pdfIn PDF document text
- http://www.zav-mito.si/wp-content/plugins/formcraft/file-upload/server/content/files/1613e985374433---27463539986.pdfIn PDF document text
- https://khyatiinfotech.biz/ckfinder/userfiles/files/gisunusigemoxixeguturo.pdfIn PDF document text
- http://geoman.cz/data/file/98827680332.pdfIn PDF document text
- http://tomgiongvip.com/uploads/files/file/11510250338.pdfIn PDF document text
- http://1-champagne.com/blog_images/blog_/file/45980935230.pdfIn PDF document text
- https://samsungklima.net/upload/ckfinder/files/61551628828.pdfIn PDF document text
- https://infotechloyalty.com/bot/ckfinder/uf/files/sonodosulubopoviwawadafe.pdfIn PDF document text
- http://capthepcongtrinh.com/uploads/news/files/funojarar.pdfIn PDF document text
- http://www.vikingmaterials.com/img/14888765750.pdfIn PDF document text
- http://dejavu.sourceforge.netIn PDF document text
- http://dejavu.sourceforge.net/wiki/index.php/LicenseIn PDF document text
Extracted artifacts 2
Files carved from inside the sample during analysis.
| Filename | Kind | Source | Size |
|---|---|---|---|
font_00_sfnt_off0000af21.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xAF21 | 10700 bytes |
SHA-256: fc19ae8ae508339e863d50059d1d247d35e59f803792ae170ab839b88def9b70 |
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font_01_sfnt_off0000c770.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xC770 | 14168 bytes |
SHA-256: 09710f66a47568eaf2a762e20260f187ecc7b1fed8a9f2138583fad6b93ee591 |
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