MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1203 Exploitation for Client Execution
This PDF file was flagged by multiple heuristics and a machine learning classifier as malicious, with ClamAV identifying it as a phishing trojan. It contains numerous links pointing to compromised WordPress sites and other disposable hosting, suggesting a link farm designed to redirect users to malicious content. The file's structure and the presence of external links indicate it is likely used as a lure to download further payloads or conduct phishing.
Machine Learning
- Nyx PDF Classifier malicious score 0.9973
Heuristics 6
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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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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://bioident.pl/photos_fck/file/fedikalur.pdf
- http://alexlunacoach.com/img/editor/file/80572348801.pdf
- https://regalcabs.co.uk/wp-content/plugins/formcraft/file-upload/server/content/files/1606fd6ca55cdc---mepufikilem.pdf
- http://www.insight-assessment.com/ckfinder/userfiles/files/bukadizixerediwulevamu.pdf
- https://susta.vn/userfiles/file/82805668281.pdf
- http://teranor.com/ckfinder/userfiles/files/66217029925.pdf
- https://www.infratechgroep.nl/wp-content/plugins/super-forms/uploads/php/files/5bd8e618cc1d59d467f0a48df580d75a/68542467198.pdf
- https://www.hospedeagora.com.br/wp-content/plugins/super-forms/uploads/php/files/eqkg7v7a5sheb697v1jv033eu7/79532039677.pdf
- https://amkboiler.com/wp-content/plugins/super-forms/uploads/php/files/jl9pdjv40jbenoic36c6bbd6o3/fazerobuvapevezelavapo.pdf
- https://cosanuesa.com/componentes/editor/ckfinder/userfiles/files/19971264307.pdf
- http://njuhome.pl/ckfinder/userfiles/files/34284225486.pdf
- https://betonwerkendejonge.nl/wp-content/plugins/formcraft/file-upload/server/content/files/160c4bb7c0bd2d---53626118097.pdf
- https://xyoaa.org/sites/default/files/files/85792552527.pdf
- http://elitvorota.ru/f/file/ruwanisuxojetebusisabos.pdf
- https://conexkarvan.com/cache/fck_files/file/fanibaz.pdf
- http://www.bestlifepolicy.co.uk/wp-content/plugins/formcraft/file-upload/server/content/files/16083ee26e1a1c---48197370802.pdf
- http://bhk-aindling.de/userfiles/files/70464836919.pdf
- https://majorsagilekvaros.hu/uploads/file/5358525975.pdf
- https://burmesecatclub.nz/wp-content/plugins/super-forms/uploads/php/files/ffdb954b2d2552f390fead089be36f72/dozuxujarijerirefem.pdf
- http://articolo17.it/siti//usr/foto/files/34147146067.pdf
- http://stphilomenaonline.org/userfiles/file/savozorugumi.pdf
- http://geologicatoscana.eu/userfiles/files/14973803178.pdf
- http://bhhangkhong.com/upload/images/files/45622227384.pdf
- https://feedproxy.google.com/~r/skout/mBVl/~3/S30rS-6n6vg/uplcv?utm_term=pedagogy+mcqs+for+nts+pdf
- http://lovewhereyoulv.wpengine.com/wp-content/plugins/super-forms/uploads/php/files/9af6eba83e7ce46679f2c55511b322c6/rezazazotojinulefupanapob.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_off0000c41d.bin9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xC41D | 16792 bytes |
font_01_sfnt_off0000dc2f.bin675d23b59c22d399e0b9bfc51dad8d9b1e5dea2c86a57edee3b75237e5cf7a74 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xDC2F | 16900 bytes |
font_02_sfnt_off00010758.bin66e148ccac5517446d3c8d425102c43338a36ffd4d3589ef35ef48c45aa4f3ff |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x10758 | 11088 bytes |
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