MALICIOUS
126
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1203 Exploitation for Client Execution
The PDF was flagged by ML classifiers and ClamAV as malicious, exhibiting characteristics of a link farm with a high number of distinct external URLs. The heuristic 'PDF_SEO_DISPOSABLE_LINK_FARM' indicates a deliberate attempt to create a network of links on disposable hosting, suggesting a malicious intent such as SEO manipulation or hosting malicious content. No scripts were extracted, but the sheer volume of outbound links points to a phishing or redirection attack.
Machine Learning
- Nyx PDF Classifier malicious score 0.9848
Heuristics 5
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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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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 http://veoguidecostarica.com/ci/userfiles/files/66282017973.pdf In PDF document text
- https://doanhnghiepvietnam.org/img_duhoc/files/nisegetar.pdfIn PDF document text
- https://baruipur.org/ckfinder/userfiles/files/22177811987.pdfIn PDF document text
- http://konferencii.org/web/uploads/assets/file/pujabawepafizepek.pdfIn PDF document text
- http://www.ibadirect.com/wp-content/plugins/formcraft/file-upload/server/content/files/1613aa07de32c2---vuxajepukaxidodege.pdfIn PDF document text
- http://hqshop24.com/userfiles/file/33648940427.pdfIn PDF document text
- http://birkhoffhi.com/userfiles/files/bawajowufob.pdfIn PDF document text
- http://shipsupply.ru/userfiles/files/renajategobujatipaxaboduf.pdfIn PDF document text
- http://alrabbanoilandgas.com/file/files/70095148726.pdfIn PDF document text
- https://pustelnik-budownictwo.pl/ckfinder/userfiles/files/10826493817.pdfIn PDF document text
- http://hidropro.hu/upload/limetenotafoxipegoni.pdfIn PDF document text
- http://prosefkuchare.cz/userfiles/55402178891.pdfIn PDF document text
- http://carmakers.cz/userfiles/files/tipivejubojekison.pdfIn PDF document text
- http://www.training4thefuture.co.uk/wp-content/plugins/formcraft/file-upload/server/content/files/1613a885fe8805---sunubupepesuvopevumuxutum.pdfIn PDF document text
- http://hndgyl.com/v15/Upload/file/202197222342277.pdfIn PDF document text
- http://ccsctda.com/ckfinder/userfiles/files/20210905_114919.pdfIn PDF document text
- http://shinaval.ru/userfiles/file/suwejifidogidikar.pdfIn PDF document text
- http://kommunikator.nu/demo/userfiles/file///15859717354.pdfIn PDF document text
- http://nollve.com/img/editor/image/file/78416522923.pdfIn PDF document text
- http://bydnjl.com/userfiles/files/89346570240.pdfIn PDF document text
- https://tw-itemaos.com/ckfinder/userfiles/files/70936126464.pdfIn PDF document text
- https://www.domaine-boussard-chablis.fr/ckfinder/userfiles/files/noxuboxetotafikege.pdfIn PDF document text
- http://www.me.ntou.edu.tw/ckfinder/userfiles/files/20210919_144612.pdfIn PDF document text
- https://www.ftha.org/admin/ckfinder/userfiles/files/sewalamatifomugame.pdfIn PDF document text
- http://teranor.com/ckfinder/userfiles/files/wigoxebiputanaxum.pdfIn PDF document text
- http://xn--nellieskche-0hb.de/userfiles/file/73253308408.pdfIn PDF document text
- https://feedproxy.google.com/~r/Uplcv/~3/zMnd8XtcwSM/uplcv?utm_term=open+source+icon+pack+androidPDF 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_off0000e7c9.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xE7C9 | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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font_01_sfnt_off0000ffe0.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xFFE0 | 10580 bytes |
SHA-256: b0f79c4a91bbc83c03163c1bfd4304654ed5ebc790aee17b7c4d40107235b01c |
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font_02_sfnt_off00011823.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x11823 | 19752 bytes |
SHA-256: e1bbc32c26cebc26ce6a11d646dc49b29b9c6058a7c52b9af84c48266ab4e21c |
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