MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
The sample is a PDF file flagged by ClamAV as a phishing trojan and by an ML classifier with high confidence. It contains a link farm pointing to numerous disposable domains and compromised CMS upload storage, suggesting an attempt to redirect users to malicious content. The presence of PDF-specific heuristics like 'PDF_SEO_DISPOSABLE_LINK_FARM' and 'PDF_COMPROMISED_CMS_UPLOAD_LINK_FARM' further supports this attack pattern.
Machine Learning
- Nyx PDF Classifier malicious score 0.9974
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://j26clean.com/upload/files/gadanudax.pdf In PDF document text
- http://drivescuolaguida.it/userfiles/files/91685402331.pdfIn PDF document text
- http://kondicionery-dzerzhinskij.ru/upload_picture/file/17120536761.pdfIn PDF document text
- https://g-ortho.com.br/wp-content/plugins/formcraft/file-upload/server/content/files/1613d814adc0d9---15929630215.pdfIn PDF document text
- http://atut-biuro.com/uploaded/file/70851856731.pdfIn PDF document text
- https://kalimati.in/userfiles/file/savutixonakiret.pdfIn PDF document text
- http://xinghui.co/upload/ckimg/files/202109152314098122.pdfIn PDF document text
- https://nirkongrp.com/ckfinder/userfiles/files/farakimeme.pdfIn PDF document text
- http://cokhilegia.com/upload/files/29283238746.pdfIn PDF document text
- https://vickers-electronics.co.uk/wp-content/plugins/super-forms/uploads/php/files/3f0c0041b956b0fdf903d960bfbf68a3/51738909101.pdfIn PDF document text
- http://patrickstaxi.fr/userfiles/file/vowafufuruv.pdfIn PDF document text
- http://locke-3c.tw/uploads/files/202109041428083511.pdfIn PDF document text
- http://jubileejec.com/userfiles/files/43095346363.pdfIn PDF document text
- http://agierresrl.it/userfiles/files/90663917903.pdfIn PDF document text
- http://dooroc.com/tk/upload/file/31580809292.pdfIn PDF document text
- https://viajespereira.com/wp-content/plugins/formcraft/file-upload/server/content/files/1613b8945742bf---24121183840.pdfIn PDF document text
- http://minhledtran.com/luutru/files/tamuzelolozu.pdfIn PDF document text
- http://willbramephotography.com/98114902525.pdfIn PDF document text
- http://1-cities.com/blog_images/blog_/file/84003535964.pdfIn PDF document text
- http://revucue.com/ckfinder/userfiles/files/39519720019.pdfIn PDF document text
- http://qapoll.com/2015/vat/upload/files/3186361842.pdfIn PDF document text
- http://www.deadclan.nl/wp-content/plugins/formcraft/file-upload/server/content/files/161407f387690a---89303286709.pdfIn PDF document text
- http://nissanotogovap.vn/uploads/images/files/fezenabilosowewevavirogul.pdfIn PDF document text
- http://kursadowicz.pl/Upload/file/64092537324.pdfIn PDF document text
- https://feedproxy.google.com/~r/1eyvgo/aqOO/~3/1xuhb7AK25c/uplcv?utm_term=kodi+19+addons+workingPDF 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_off0000edb9.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xEDB9 | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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font_01_sfnt_off000105cb.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x105CB | 17976 bytes |
SHA-256: 22be672d6be9b5b1be0914c909ebf6c9145821b7d2fc0d8280a62c5730f4ddcd |
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font_02_sfnt_off000134bc.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x134BC | 10536 bytes |
SHA-256: 6ac13ae0c4daf831d976d78b9575a51ab6ccd44915e1c992d987b8b7949a0c8e |
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