MALICIOUS
164
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
This PDF file was flagged by a machine learning classifier and ClamAV as malicious, indicating a high likelihood of malicious intent. It contains numerous links to compromised WordPress sites and disposable hosting, suggesting it functions as a link farm designed to redirect users to malicious content. The presence of embedded URLs and the nature of the heuristics strongly suggest a phishing or malware distribution campaign.
Machine Learning
- Nyx PDF Classifier malicious score 0.9991
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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Urgency / deadline lure low SE_URGENCY_LUREDocument contains urgency or deadline language ('account will be terminated', 'action required within 24 hours', etc.) — useful context, but low-signal without other findings
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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://unitedcardsolutions.com/wp-content/plugins/formcraft/file-upload/server/content/files/160853a39bbdb4---70299269963.pdf
- http://ctkupavna.ru/upload/file/34740642375.pdf
- http://alarmy-kamery24.pl/userfiles/file/6743442286.pdf
- http://planbmedia.hu/files/84842111596.pdf
- https://www.costaverde.it/wp-content/plugins/formcraft/file-upload/server/content/files/1606f0c9fd686e---xalafu.pdf
- https://microfocus-realize2020mea.com/wp-content/plugins/super-forms/uploads/php/files/629e59fefda7f61c1652d86d3b07cc59/46818626069.pdf
- https://www.scanworld.se/wp-content/plugins/formcraft/file-upload/server/content/files/160acdf4e73228---23232604143.pdf
- http://petraifevronii.ru/ckfinder/userfiles/files/42863260607.pdf
- https://anmimar.com/royal/userfiles/file/wajubepugevobivokofi.pdf
- http://yuseigachi.nl/wp-content/plugins/formcraft/file-upload/server/content/files/160aa5bebe3333---12137580899.pdf
- https://www.auditek.fr/wp-content/plugins/formcraft/file-upload/server/content/files/1606f18b3f38b7---43233992764.pdf
- https://bravo-hk.com/userfiles/file/rokelikafumorozezakavox.pdf
- https://msr-hudsonproperties.com/wp-content/plugins/super-forms/uploads/php/files/a7678528ed48171b225c38197c1d8e11/xatifesegib.pdf
- https://heykidsletscook.info/wp-content/plugins/super-forms/uploads/php/files/7c6a8da4eb314e00e1c32df6e69e179e/22095761394.pdf
- https://otelnamore.com/wp-content/plugins/super-forms/uploads/php/files/cfba9f93859c756d76cb32eb8a0ed214/garoxojaz.pdf
- https://wurstfargo.com/wp-content/plugins/super-forms/uploads/php/files/cd3e6de9acadadfac68ca9b6130a7505/35967350378.pdf
- https://feedproxy.google.com/~r/1eyvgo/aqOO/~3/A3Ryygt5BCM/uplcv?utm_term=at+home+dog+grooming+near+me
- 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_off0000f04b.bin9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xF04B | 16792 bytes |
font_01_sfnt_off0001085d.bin9e5cc15353141bec9706d6a32253b41f67749d8bb65bf4346f182060529dae09 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x1085D | 16552 bytes |
font_02_sfnt_off0001322d.bind46bbd258b6be980323dd08eadc300b40dc2dc3ed1e11ecb109014901a209373 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x1322D | 10464 bytes |
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