MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
This PDF file was flagged by multiple heuristics as malicious, including a critical ClamAV detection and an ML classifier. It contains numerous links to external websites, many of which appear to be hosted on compromised CMS platforms or disposable domains, suggesting a link farm designed to redirect users to malicious content. The presence of embedded URLs and the nature of the heuristics indicate a phishing or malware distribution attempt.
Machine Learning
- Nyx PDF Classifier malicious score 0.9947
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://infrive.ru/uplcv?utm_term=ark+survival+evolved+mod+android
- http://windmill-bv.com/userfiles/files/76970334442.pdf
- https://efnnma.org/files/file/34256082721.pdf
- https://414movement.com/wp-content/plugins/super-forms/uploads/php/files/c036ae900e7e49fef2b730f81d9dce92/5738734271.pdf
- https://rffsev.ru/wp-content/plugins/super-forms/uploads/php/files/9a683da9b833fd8f428ef1d87faba592/44422041531.pdf
- https://www.mds-horizons.com/upload/files/59262321487.pdf
- http://abarappresentanze.it/userfiles/files/revosexovuvon.pdf
- https://donnasalon.ru/wp-content/plugins/super-forms/uploads/php/files/e7690ed5ed362985fbcc31ac66f4f009/4058272933.pdf
- http://csc0311.com/userfiles/file/20210607080954_6tk793.pdf
- https://sipsib.ru/wp-content/plugins/super-forms/uploads/php/files/a900a15bd2be7d3df60c84fc25d28575/susutodebiwibapaba.pdf
- https://gccpay.net/wp-content/plugins/super-forms/uploads/php/files/69659aeff50cc9eaa5dd41ff8088c343/mukabigafotolofativavilem.pdf
- http://bociany.sk/media/file/zuxefigubibunutigojudo.pdf
- http://beachfirebrands.com/userfiles/file/21746321305.pdf
- https://aliencosmicexpo.com/wp-content/plugins/formcraft/file-upload/server/content/files/160bd0a9715f9f---42443855778.pdf
- http://foire-fromages-et-vins.com/wp-content/plugins/formcraft/file-upload/server/content/files/1608a0a23b3358---32784893625.pdf
- http://www.photobreak.com.br/wp-content/plugins/formcraft/file-upload/server/content/files/160b81d28799d1---tepizopijozaliwanupipub.pdf
- https://www.dyna-tech.nl/wp-content/plugins/formcraft/file-upload/server/content/files/16098af060cb8b---60820597734.pdf
- https://semsaesp.com/ckfinder/userfiles/files/80541364159.pdf
- http://bogieclassof67.com/clients/71235/File/61294015774.pdf
- http://lawyerstitleescrow.com/clients/9/9b/9b7cfcecb5e5abb6b877b2b1d59b4eb1/File/tugufovetopawidike.pdf
- http://www.iamgoingto1996.com/wp-content/plugins/formcraft/file-upload/server/content/files/160c663ef664a6---fanukakalalabib.pdf
- http://bougerpourstarlight.org/clients/c/c6/c668404594a1c08d975ab50c7bec58f6/File/24828364152.pdf
- https://ltgtrends.com/wp-content/plugins/super-forms/uploads/php/files/cb1bf8556ed6acd824827423b6b6fdee/rawesokuwujetozenoguditap.pdf
- http://7tec.ru/userfiles/files/91468544002.pdf
- https://deconkhoemanh.com/wp-content/plugins/super-forms/uploads/php/files/6rlhjdtd13h5o4fam61ovpf45j/pufaxopi.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_off0000f741.bin9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xF741 | 16792 bytes |
font_01_sfnt_off00010f53.bin0168abd7128a7a245c0b92c113ba7b14e6948b0e09dda885da7dcdbaed7c7a1f |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x10F53 | 17028 bytes |
font_02_sfnt_off00013bd8.bina22a2ee7e33924ea40495a0fd85bbff00fb5d42877da2c744295050084ddef9e |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x13BD8 | 10552 bytes |
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