MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1204.002 Malicious Link
The PDF contains a large number of embedded URLs, many of which point to compromised websites or disposable hosting, indicating a link farm designed to distribute malicious content or phish users. The ML classifier and ClamAV detection strongly suggest malicious intent, classifying it as a phishing trojan.
Machine Learning
- Nyx PDF Classifier malicious score 0.9956
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 http://bresky.cz/res/file/woxolifipisu.pdf In PDF document text
- https://www.tri-or.fr/tri-or/ckfinder/userfilesfiles/77227565064.pdfIn PDF document text
- http://bestbuyfromindia.com/userfiles/file/41313744757.pdfIn PDF document text
- http://gzky.cn/dubeite/ckfinder/userfiles/files/20210905_052921.pdfIn PDF document text
- http://autodilygood.cz/files/file/jipojadawozerimexup.pdfIn PDF document text
- http://anaminfo.com/attachfile/file/82728445504.pdfIn PDF document text
- https://solturism.ro/images/file/viriditizotezowo.pdfIn PDF document text
- http://www.risingstars.com.tr/wp-content/plugins/formcraft/file-upload/server/content/files/1613e235fd0c87---bejud.pdfIn PDF document text
- http://unite-chem.cn/upload/files/86916285114.pdfIn PDF document text
- https://wcdt.co.th/wp-content/plugins/super-forms/uploads/php/files/v7374773471r235jelcl99pfki/piroduvire.pdfIn PDF document text
- https://etravelbox.com/scgtest/team-explore/uploads/files/dugezatalijifipine.pdfIn PDF document text
- https://designclarf.it/file/24557728163.pdfIn PDF document text
- http://vvk-wiedermann.at/userfiles/file/36610746057.pdfIn PDF document text
- https://igk-lilienthal.de/downloads/dewusomavuxas.pdfIn PDF document text
- http://gardena.crazyrockinsushi.com/uploads/files/numanutes.pdfIn PDF document text
- http://4998horo.gmmwireless.com/contents/files/safaguwo.pdfIn PDF document text
- https://gmonlinestore.com/wp-content/plugins/formcraft/file-upload/server/content/files/16130dad710c92---96286841602.pdfIn PDF document text
- http://greatnice.club/updatefiles/file/56582310524.pdfIn PDF document text
- https://astoriareiki.com/wp-content/plugins/super-forms/uploads/php/files/7b46f1c9785400b937bc1a2f6613aed7/99417392836.pdfIn PDF document text
- http://agrihitech.net/media/ftp/file/kezaxaxodeniputolobonowe.pdfIn PDF document text
- https://cezartravel.hu/userfiles/file/22877586968.pdfIn PDF document text
- http://panhongbo.com/ckfinder/userfiles/site_eachfun_com/files/58027315803.pdfIn PDF document text
- http://pc580.cn/upload_fck/file/2021-9-6/20210906201304887075.pdfIn PDF document text
- https://feedproxy.google.com/~r/1eyvgo/aqOO/~3/GLLx1DTH0VQ/uplcv?utm_term=oreo+tv+app+for+amazon+fire+stickPDF 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_off0000b6a9.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xB6A9 | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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font_01_sfnt_off0000cebb.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xCEBB | 15680 bytes |
SHA-256: 710d249e37868930e3b8bd1dd82d0e7db181072bdf62f6f148e46e3b54f9f8cf |
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font_02_sfnt_off0000f69a.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xF69A | 10840 bytes |
SHA-256: 1914462f06b56912a21188e3470a0ca61a7898adcb4db39a7ef87aa67e6bb1d3 |
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