MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
The PDF was flagged by ML classifiers and ClamAV as malicious, specifically as a phishing trojan. It contains numerous embedded URLs, many of which point to compromised CMS upload directories or disposable hosting, suggesting a link farm designed to obscure the ultimate destination. While no scripts were explicitly extracted, the PDF structure and heuristic firings indicate a likely attempt to lure users to malicious sites.
Machine Learning
- Nyx PDF Classifier malicious score 0.9982
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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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 http://huyminhplastic.com/upload/files/lodolipefu.pdf
- http://arcadia-fitness.es/userfiles/file/zujewovuvidob.pdf
- http://motovelo-nmsk.ru/userfiles/file/juxakokoguwidonutoniti.pdf
- http://brilsports.ro/userfiles/file///21707181863.pdf
- http://ngnjl.com/userfiles/files/96499808475.pdf
- http://qhzs88.com/admin/fckeditor_upfiles/file/2021091403322980554.pdf
- http://www.weilandensemble.nl/ckfinder/userfiles/files/98310956619.pdf
- https://floridainvestment.cz/files/file/kuxowabejitivaxu.pdf
- http://www.dadosefatos.net.br/wp-content/plugins/formcraft/file-upload/server/content/files/16140bae672011---biputuzaruk.pdf
- http://dennehylaw.com/customer/3/d/9/3d947ad6ce2568d98b832ccf5548371bFile/negekesedeluburekonuzef.pdf
- http://rts-3.ru/upload/files/numerivolunogeta.pdf
- http://inspeq.eu/public/files/98150964922.pdf
- http://kondicionery-dolgoprudny.ru/upload_picture/file/41993038645.pdf
- http://hiro-seiko.com/upload/files/zusorepigereboxinewo.pdf
- http://nt-module.ru/ckfinder/userfiles/files/megepepiviludim.pdf
- https://shrmivirtual.org/wp-content/plugins/super-forms/uploads/php/files/27d810971254b0ea285e3bc278ba1ee1/lagewo.pdf
- http://razzledazzleevents.in/userfiles/file/bubekisajisobosop.pdf
- https://vakukh.ru/wp-content/plugins/super-forms/uploads/php/files/8c1fa9df7034517eeffadbdd4c0571cf/69902296758.pdf
- http://sieckultury.pl/wp-content/plugins/super-forms/uploads/php/files/1716f822b5b8e5c8554a2ccdfbf6aacd/58820563524.pdf
- http://slkuang.com/v15/Upload/file/20219202048142603.pdf
- http://www.sec-ollivier-associes.fr/www/upload/file/tinopepigujobozofep.pdf
- https://sibois.eu/userfiles/file/fadilesofoxuri.pdf
- https://feedproxy.google.com/~r/1eyvgo/aqOO/~3/3vuEKuznOb8/uplcv?utm_term=d%26d+5e+oriental+adventures+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_off0000d121.bin3697e6456a71496a84d1dcf6228ced7fc37106cd4680c79a50f4d75ea9ccba05 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xD121 | 21916 bytes |
font_01_sfnt_off00010b55.binf695977626623e59fedb2fbedebd468d0acf89ff6f6ceafeb3cee4351ddee6c8 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x10B55 | 9076 bytes |
font_02_sfnt_off00011dfa.bin9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x11DFA | 16792 bytes |
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