MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1204.002 Malicious Link
The PDF file was flagged by ClamAV as a phishing trojan and by an ML classifier, indicating malicious intent. It contains numerous embedded URLs, many pointing to compromised websites or disposable domains, suggesting it's part of a link farm designed to lure users to malicious content. The presence of multiple PDF link farm heuristics 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://chcial.ru/uplcv?utm_term=types+of+rooms+in+a+castle
- https://leise.ru/admin/ckfinder/userfiles/files/74383586505.pdf
- https://www.disbel.es/ckfinder/userfiles/files/vijevurutudugi.pdf
- http://1-champagne.com/blog_images/blog_/file/tijunukagazabiwesumedibim.pdf
- http://osteriadelcampanile.com/userfiles/files/masomubugudefojoluvukidi.pdf
- https://hattoco.vn/images/ckeditor/files/47213498508.pdf
- http://www.kymenhome-etsinta.net/tiedostot/files/40759531590.pdf
- https://skywaytravelandholidays.com/ckfinder/userfiles/files/mizugupedojoxegitu.pdf
- http://paraglider24.de/pics/fotos/1/file/liwifarifemewonimub.pdf
- https://nuregio.de/wp-content/plugins/formcraft/file-upload/server/content/files/16132b55ca2f1a---10116009601.pdf
- https://kcharp.com/ckfinder/userfiles/files/gixazakegevire.pdf
- http://www.qookspot.kitchen/wp-content/plugins/formcraft/file-upload/server/content/files/16138193abcd8d---24107727381.pdf
- https://dbmotorbrokers.com/userfiles/file/pisekiwaluvebunovesise.pdf
- http://thietbiantoanttk.com/uploads/files/gusit.pdf
- http://akiisushi.com/uploads/files/82749852671.pdf
- http://dom-nenilovo.ru/wp-content/plugins/super-forms/uploads/php/files/8f4b1b7f7c5f9c25c90c1bf987a2c4b6/2305367446.pdf
- http://spain-ex.com/images/blog/file/jutasekovowavu.pdf
- http://nayyaralidada.com/alpha/ckfinder/userfiles/files/kimibifopudusabosim.pdf
- http://spy-military-labs.com/userfiles/file/mupunawegamakanizonivip.pdf
- https://riwg.in/userfiles/file/7679403164.pdf
- http://philipp-haberland.de/images/upload/file/96996789754.pdf
- https://apoiotelecom.com/imagens/img_fckeditor/file/gufik.pdf
- http://architettosbaffo.com/userfiles/files/51092406584.pdf
- http://bukharajohnscreek.com/sites/default/files/file/nujawidokasoviwerulagawuf.pdf
- http://lutechmed.com/Images_upload/files/jarabiwatujevafuw.pdf
- http://www.w3.org/1999/02/22-rdf-syntax-ns#
- http://purl.org/dc/elements/1.1/
- http://ns.adobe.com/pdf/1.3/
- http://ns.adobe.com/xap/1.0/
- http://ns.adobe.com/xap/1.0/mm/
- http://ns.adobe.com/xap/1.0/rights/
- http://dejavu.sourceforge.net
- http://dejavu.sourceforge.net/wiki/index.php/License
Extracted artifacts 3
Files carved from inside the sample during analysis.
| Filename | Kind | Source | Size |
|---|---|---|---|
font_00_sfnt_off0000dec6.bin2126f5c969a435fcf4130dfab709b9f6cb444859811e49754970c066e656507f |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xDEC6 | 10716 bytes |
font_01_sfnt_off0000f76a.bin7a4f63a8813bb429df43681eea2d96169e5cb0b0e26e84fc395c1e4e3a38587e |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xF76A | 17708 bytes |
font_02_sfnt_off000124cc.bin9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x124CC | 16792 bytes |
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