MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
The PDF file was identified as malicious by ML classifiers and ClamAV, indicating a high likelihood of malicious intent. It functions as a link farm, with numerous embedded URLs pointing to various websites, some of which are hosted on compromised CMS upload storage. The primary attack pattern observed is the use of a link farm to direct users to potentially malicious content, likely as part of a phishing or malware distribution scheme.
Machine Learning
- Nyx PDF Classifier malicious score 0.9975
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 https://vili-al.com/uploads/wysiwyg/files/34599984630.pdf In PDF document text
- http://www.retorika-zidar.si/ckfinder/ckeditor_uploaded_files/files/38829499569.pdfIn PDF document text
- http://dzbnf.com/upload/file///84628793711.pdfIn PDF document text
- https://brandonsmilesdentistry.com/wp-content/plugins/super-forms/uploads/php/files/4e66pu1eekoaqaqqgf8vi7o183/93581398718.pdfIn PDF document text
- http://lilit-realty.com/wp-content/plugins/super-forms/uploads/php/files/dchgh4ursesu2sjpc7h76rigs6/3233205675.pdfIn PDF document text
- https://dungcuruamui.com/wp-content/plugins/super-forms/uploads/php/files/efp9vknsm8617qc5d01divol91/xadeluliwas.pdfIn PDF document text
- https://www.conkite.com/wp-content/plugins/super-forms/uploads/php/files/f6590390cbecb590cfd734206a4db8d8/82501365120.pdfIn PDF document text
- https://georgiamusicpartners.org/wp-content/plugins/super-forms/uploads/php/files/c57c01ef96e16e61407c9ff5b6b7a0ce/70679853766.pdfIn PDF document text
- https://hoakhanh.vn/uploads/image/files/32401350803.pdfIn PDF document text
- http://qboardapp.com/wp-content/plugins/super-forms/uploads/php/files/87ed98a5f60be3c2278d7e4cf0096290/48335438578.pdfIn PDF document text
- http://www.kickcommerce.com/userfiles/file/ninixevub.pdfIn PDF document text
- http://for-rent-aalst.com/wp-content/plugins/formcraft/file-upload/server/content/files/1609e85ef0ebc1---wuwuguzaludorivuzebenox.pdfIn PDF document text
- http://heilpraxis-pankow.de/wp-content/plugins/formcraft/file-upload/server/content/files/1608e3e4379558---3978518809.pdfIn PDF document text
- http://www.julitolaschools.com/wp-content/plugins/formcraft/file-upload/server/content/files/160c5ded0db491---zekabugadasomigevoj.pdfIn PDF document text
- http://kwong-cheong.com/userfiles/jamudasanupor.pdfIn PDF document text
- http://www.sunarmisir.com.tr/wp-content/plugins/super-forms/uploads/php/files/9hu89vt9mjtcslqu6qsci84e30/35871178599.pdfIn PDF document text
- http://www.theagentpipeline.com/wp-content/plugins/formcraft/file-upload/server/content/files/160c06ffdb238c---rarosupivodiguvuxosadopug.pdfIn PDF document text
- https://t4g.nasscomfoundation.org/wp-content/plugins/super-forms/uploads/php/files/d0nod69m2a752ouu6t3ftthbj6/gojozukirowazejorobuli.pdfIn PDF document text
- https://www.isgs.org/wp-content/plugins/super-forms/uploads/php/files/8b0b60c4bd1a8dce1e2e97941737a3c1/soxin.pdfIn PDF document text
- https://kanat.com/upload/ckfinder/files/vugojaxilikijewebo.pdfIn PDF document text
- https://alfa-pechati.ru/wp-content/plugins/super-forms/uploads/php/files/ad1120a1a0367aa111bb16a3cf311c17/lajirapopo.pdfIn PDF document text
- https://miamiuniquelimo.com/wp-content/plugins/formcraft/file-upload/server/content/files/16074bcbf8d766---lebifawufimobukefaj.pdfIn PDF document text
- http://brownewingfamily.com/clients/a/a4/a4d7a48ed280e719b438ae57db99af5e/File/34259583425.pdfIn PDF document text
- http://www.veronicaneal.com/wp-content/plugins/formcraft/file-upload/server/content/files/1/1608780612a755---82722393329.pdfIn PDF document text
- http://ash-graphy.com/userfiles/file/muxok.pdfIn PDF document text
- https://feedproxy.google.com/~r/Uplcv/~3/LPIa9PGmDLg/uplcv?utm_term=how+to+write+a+letter+employment+verificationPDF link annotation
- 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_off0000c2ea.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xC2EA | 14460 bytes |
SHA-256: 6cbee50b8478d01b3fe780c086aafd1a1dd464d42056f18c929cf20ff408b4f9 |
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font_01_sfnt_off0000e713.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xE713 | 10732 bytes |
SHA-256: 83548dba8c942ff1d3bbd4eecc654aadc88c04d9e38a38b1d73ab4cacb120a86 |
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font_02_sfnt_off0000ffc2.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xFFC2 | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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