MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1203 Exploitation for Client Execution
The sample is identified as malicious by ML classifiers and ClamAV, indicating a high likelihood of malicious intent. It contains numerous links to compromised CMS upload storage and disposable hosting, suggesting a phishing or malware distribution scheme. The PDF structure and embedded links point towards an attempt to redirect users to potentially harmful external sites.
Machine Learning
- Nyx PDF Classifier malicious score 0.9982
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://fotojursa.cz/userfiles/file/jimega.pdf In PDF document text
- http://thebeautyofdesign.nl/ckfinder/userfiles/files/sedizetodiresotavonoral.pdfIn PDF document text
- http://phenix-security.fr/wp-content/plugins/formcraft/file-upload/server/content/files/1609a35cce6b58---kotudatebuna.pdfIn PDF document text
- https://hartwellcook.com/wp-content/plugins/super-forms/uploads/php/files/a2d9bc2f23088708b3c1d8f66ee7dc26/88998809176.pdfIn PDF document text
- https://spitalmoldovanoua.ro/ckfinder/userfiles/files/93665390913.pdfIn PDF document text
- https://adm.allianceflooring.net/wp-content/plugins/super-forms/uploads/php/files/5af3c8c8d2aad73b3ca19425803fd118/ratibipegen.pdfIn PDF document text
- http://payassistinc.com/wp-content/plugins/formcraft/file-upload/server/content/files/160926e00949cf---lasekusodusifurakodu.pdfIn PDF document text
- http://soldearenales.com/galeria/files/vetofiz.pdfIn PDF document text
- http://pensjonatagat.pl/userfiles/file/3782068992.pdfIn PDF document text
- http://sazjah.com/wp-content/plugins/formcraft/file-upload/server/content/files/16079dcf0a1ebb---17491339296.pdfIn PDF document text
- http://macabrey-luthier.fr/data/Files/48334980468.pdfIn PDF document text
- https://gberwanda.com/gbe/useruploads/blogs/files/kufukirebojuzixe.pdfIn PDF document text
- http://ontsgoi.shop/uploads/files/mirasirulovofurobex.pdfIn PDF document text
- https://utilitydiscount.com/wp-content/plugins/formcraft/file-upload/server/content/files/1606fc77d2565a---37899714986.pdfIn PDF document text
- https://www.vibrationmonitoring.asia/wp-content/plugins/formcraft/file-upload/server/content/files/160c039192709c---fomereku.pdfIn PDF document text
- http://thekitchendesignstudio.org/uploads/files/1444712262.pdfIn PDF document text
- https://nam.it/wp-content/plugins/formcraft/file-upload/server/content/files/160ae382a68b93---nugerukog.pdfIn PDF document text
- http://compufoxmail.com/userfiles/file/8097900514.pdfIn PDF document text
- http://altus.pl/userfiles/file/zeniwusekogivil.pdfIn PDF document text
- http://lichnyiybrand.ru/wp-content/plugins/formcraft/file-upload/server/content/files/16080dc27987ed---gopoletupobekinidoxo.pdfIn PDF document text
- https://mission4recruitment.com/wp-content/plugins/formcraft/file-upload/server/content/files/16082cc5c29e7a---2399967630.pdfIn PDF document text
- http://agendaalzheimer.org/files/galeria/files/tegapiban.pdfIn PDF document text
- http://www.southforconstruction.com/frontend/web/ckfinder/userfiles/files/78764285379.pdfIn PDF document text
- http://www.canadiantreasurer.com/wp-content/plugins/formcraft/file-upload/server/content/files/1607a7f9f77ceb---58752361331.pdfIn PDF document text
- http://onlineticketreview.com/images/file/54385978460.pdfIn PDF document text
- https://feedproxy.google.com/~r/1eyvgo/aqOO/~3/PmAiG5ZyT-k/uplcv?utm_term=schritte+international+a1%2F2+pdfPDF 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_off0000dcf9.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xDCF9 | 22852 bytes |
SHA-256: d67c190e139c1468adca21c7712a98c407fa34dce6d902549724354ec19a2409 |
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font_01_sfnt_off0001163b.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x1163B | 10828 bytes |
SHA-256: 7734b602f56bba738312a58f2c32cfa2eb7e4f5bd896da31a3d7f975fdcf2f26 |
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font_02_sfnt_off00012f4f.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x12F4F | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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