MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1203 Exploitation for Client Execution
This PDF file was detected as malicious by ML classifiers and ClamAV, indicating a phishing or trojan payload. It functions as a link farm, with numerous URLs pointing to compromised CMS upload directories, likely serving as a distribution point for further malicious content. The presence of multiple distinct hosts and the use of 'utm_term' parameters suggest an attempt to obscure the true destination and potentially leverage SEO tactics for distribution.
Machine Learning
- Nyx PDF Classifier malicious score 0.9956
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://www.taxiserviceh24.com/wp-content/plugins/formcraft/file-upload/server/content/files/1608ce24036185---riluximisusib.pdf
- https://veglifekc.org/wp-content/plugins/super-forms/uploads/php/files//giminolifuvejosut.pdf
- https://ceccarbotosani.ro/userfiles/file/gugonogidapopi.pdf
- http://frederickfollows.co.uk/wp-content/plugins/formcraft/file-upload/server/content/files/160c8a0417fd3f---89850453262.pdf
- http://foire-fromages-et-vins.com/wp-content/plugins/formcraft/file-upload/server/content/files/160afe01034eee---62650241855.pdf
- http://www.petersmetalstitching.co.za/wp-content/plugins/formcraft/file-upload/server/content/files/160a31376c93bb---kopafebarul.pdf
- https://reflexlighting.com/wp-content/plugins/super-forms/uploads/php/files/d0bfb83ef9a0a435e9cdd454a018ddae/74550029293.pdf
- https://polinagerz.ru/wp-content/plugins/super-forms/uploads/php/files/sol4kb0jfhis0jsn7t1ghlc6c8/51914165915.pdf
- http://kingspec.su/wp-content/plugins/super-forms/uploads/php/files/r637qtl25vmdler7tog7a29k4p/4707564466.pdf
- http://www.circoloaletrium.it/wp-content/plugins/formcraft/file-upload/server/content/files/16077f745c987b---bobetiripepujunurijip.pdf
- https://cmfnepal.org/userfiles/files/tejedimajetubeb.pdf
- https://medok18.ru/wp-content/plugins/super-forms/uploads/php/files/d6fe80a82f6adb7f24cb31da9eec6236/90982577180.pdf
- http://dmn.ca/wp-content/plugins/formcraft/file-upload/server/content/files/160a8888eb3438---7744156725.pdf
- http://ajivikafinance.com/userfiles/file/fodiwibubelan.pdf
- http://aggengr.com/uploads/CMS/file/17595539934.pdf
- https://plentis.eu/ckfinder/userfiles/files/49862684629.pdf
- http://mouaumfb.com/wp-content/plugins/formcraft/file-upload/server/content/files/160cc107edcf2c---musezapajobasavaju.pdf
- http://smflow.in/admin/uploads/file/74694502198.pdf
- http://pck.malopolska.pl/wp-content/plugins/super-forms/uploads/php/files/f410c0cfd90102b680c85e7419794104/71557645527.pdf
- http://henghuitong.com/jingkelun/userfiles/files/20210617204807.pdf
- http://gaziogluenerji.com/images_upload/files/5712528603.pdf
- https://backcountryplayground.com/wp-content/plugins/super-forms/uploads/php/files/1cde588c9131a6f0d1c1c33be4a8bcf1/20189312738.pdf
- https://soft-print.pl/app/webroot/media/files/magedirobesizikipow.pdf
- https://feedproxy.google.com/~r/1eyvgo/aqOO/~3/Om9ozkHLxGw/uplcv?utm_term=the+law+of+peoples+john+rawls+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_off0000bcf0.bin3763c38bcd537061fdfa19ea6a4cb3de7c74c30aea3533450d13467f567f64d8 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xBCF0 | 16688 bytes |
font_01_sfnt_off0000e83c.bin9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xE83C | 16792 bytes |
font_02_sfnt_off00010053.bin6e4fb8829a0d23b96793b8b84abd8d3da54ac4916359c10bc64099ef8f361dec |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x10053 | 10584 bytes |
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