MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
The PDF file was detected as malicious by ClamAV and an ML classifier, indicating a high likelihood of malicious intent. Heuristics identified it as a link farm, with many URLs pointing to compromised WordPress sites and disposable hosting, suggesting a phishing or SEO manipulation scheme. Although no scripts were extracted, the embedded URLs are the primary indicators of compromise, likely leading to further malicious content or phishing pages.
Machine Learning
- Nyx PDF Classifier malicious score 0.9947
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://catamma.ru/uplcv?utm_term=best+spanish+app+for+android PDF link annotation
- https://www.golddustdental.com/wp-content/plugins/formcraft/file-upload/server/content/files/16138ef6f70619---38232571745.pdfIn PDF document text
- https://ever.dacola.com/upload/files/84783611544.pdfIn PDF document text
- http://vijyaiprismcrm.com/userfiles/files/bumaleridomeg.pdfIn PDF document text
- https://citronixdeflection.com/nbloom/fckuploads/file/42225345271.pdfIn PDF document text
- http://artpolyclinic.com/file/files/9767243435.pdfIn PDF document text
- https://sukhayurveda.in/userfiles/file/jawadalopufadapu.pdfIn PDF document text
- https://mr-alian.com/upload/ckfinder/files/dixazejuwipopamosorefi.pdfIn PDF document text
- http://baby-daycare.com/uploads/files/202109100853591870.pdfIn PDF document text
- http://investin-khj.ir/ckfinder/userfiles/files/giwekowiretotalefifebi.pdfIn PDF document text
- https://igraonica.me/userfiles/file/77854026366.pdfIn PDF document text
- http://drtamerturan.com/file/32354956570.pdfIn PDF document text
- http://cetinelektrik.com.tr/wp-content/plugins/formcraft/file-upload/server/content/files/1613d7a1836637---5290947722.pdfIn PDF document text
- https://cullinanconstruction.com/wp-content/plugins/super-forms/uploads/php/files/rs38i07s1f9ae74haqm2hjudk5/bibezuzi.pdfIn PDF document text
- https://loyalangkorapartment.com/userfiles/file/dunusu.pdfIn PDF document text
- http://azs-szermierka.pl/zdjecia/fck/file/95742719466.pdfIn PDF document text
- http://zbigniewrodak.pl/galeria/file/30654635177.pdfIn PDF document text
- http://c2r-auto.com/uploadfiles/file/2021091011453473499.pdfIn PDF document text
- http://thanhnienxp.com/vietkiendo/upload/file/75214161189.pdfIn PDF document text
- http://wronba.com/uploads/wysiwyg/file/7563385297.pdfIn PDF document text
- http://geologicatoscana.eu/userfiles/files/kojexezezuvadinibedunolu.pdfIn PDF document text
- http://schodylux.pl/userfiles/file/fewogibipavegej.pdfIn PDF document text
- https://www.champagne-auge-dascier.com/ckfinder/userfiles/files/jedinuge.pdfIn PDF document text
- https://martas.vodrsport.cz/uploads/files/34506686805.pdfIn PDF document text
- http://sloplast.com/userfiles/files/mexopojubagonogoranepovi.pdfIn PDF document text
- https://hsiaoying.com/userfiles/file/pizujiwiniforafedijopudu.pdfIn PDF document text
- http://www.w3.org/1999/02/22-rdf-syntax-ns#In PDF document text
- http://purl.org/dc/elements/1.1/In PDF document text
- http://ns.adobe.com/pdf/1.3/In PDF document text
- http://ns.adobe.com/xap/1.0/In PDF document text
- http://ns.adobe.com/xap/1.0/mm/In PDF document text
- http://ns.adobe.com/xap/1.0/rights/In PDF document text
- http://dejavu.sourceforge.netIn PDF document text
- http://dejavu.sourceforge.net/wiki/index.php/LicenseIn PDF document text
Extracted artifacts 3
Files carved from inside the sample during analysis.
| Filename | Kind | Source | Size |
|---|---|---|---|
font_00_sfnt_off0000eca5.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xECA5 | 10600 bytes |
SHA-256: a70b6cc2b865ba4bee874456ded00df7a4578ad1cb39d65c7d3adab671d3aeef |
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font_01_sfnt_off000104d3.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x104D3 | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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font_02_sfnt_off00011ce5.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x11CE5 | 17176 bytes |
SHA-256: d12df8c6086b63ae595f602e7aa58c5f900df0342e196e20104fe770fb4ee641 |
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