MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1203 Exploitation for Client Execution
The file is identified as malicious by ML classifiers and ClamAV, indicating a high likelihood of malicious intent. Static analysis revealed it functions as a link farm, with numerous URLs pointing to potentially compromised websites or disposable hosting, designed to redirect users. The presence of multiple external URIs and link farm heuristics strongly suggests a phishing or malware distribution scheme.
Machine Learning
- Nyx PDF Classifier malicious score 0.9954
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://huntic.ru/uplcv?utm_term=mcq+for+materials+science PDF link annotation
- http://nhatngungoisaoxanh.com/upload/files/452701002.pdfIn PDF document text
- http://aucontecnologia.com/userfiles/files/kuvodov.pdfIn PDF document text
- https://f1com.ge/wp-content/plugins/super-forms/uploads/php/files/cc6a006b2c85cb0ae4bb75d0cb20df56/33198040516.pdfIn PDF document text
- http://akademibt.com/resimler/files/togajuluxebije.pdfIn PDF document text
- https://www.idd.no/ckfinder/userfiles/files/sineribar.pdfIn PDF document text
- http://claudiodauelsberg.com.br/wp-content/plugins/formcraft/file-upload/server/content/files/16147e7da8854e---turanawezidawuwabom.pdfIn PDF document text
- http://autodilykanka.cz/cmsimple/images/file/60825357774.pdfIn PDF document text
- http://gryfarmerskie.pl/pliki_wyswig/files/68491462212.pdfIn PDF document text
- https://almudenafernandez.co/ckfinder/userfiles/Files/nolodobogu.pdfIn PDF document text
- http://awards.nl/img/cms/file/50022239166.pdfIn PDF document text
- https://discovercefalu.com/_data/images/file/wawulejufabamage.pdfIn PDF document text
- http://hemeringen.de/ckeditor_ablage/userfiles/files/50196138199.pdfIn PDF document text
- http://decaldankinh.net/upload/files/ziluze.pdfIn PDF document text
- http://qualityfirstservices.pro/testingsites/advantage_aviation/assets/media/file/kaxupopojefoximet.pdfIn PDF document text
- http://dainichiji.com/upload_ckr/files/setixifaxalomiwomidugot.pdfIn PDF document text
- https://www.karenlovelee.com/wp-content/plugins/formcraft/file-upload/server/content/files/1614dd3c5bff35---23045663315.pdfIn PDF document text
- http://modaxch.com/userfiles/files/46670780142.pdfIn PDF document text
- https://towa-aaa.jp/userfiles/file/tagenozi.pdfIn PDF document text
- http://autoneza.cz/UserFiles/File/belofeb.pdfIn PDF document text
- http://xn--9w3b270a7kf.kr/ckfinder/userfiles/files/10398259947.pdfIn PDF document text
- http://greensquares.in/userfiles/file///45741076765.pdfIn PDF document text
- http://www.ciesol.com/ckfinder/userfiles/files/dipewowabo.pdfIn PDF document text
- http://zoncmswebsitebeheer.nl/files/editor/file/nareri.pdfIn PDF document text
- http://aj-freight.com/ckfinder/userfiles/files/81383659048.pdfIn PDF document text
- 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_off0000aed8.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xAED8 | 15772 bytes |
SHA-256: dbc6507302f9dd2c8d00bfe523ced7d2bd989f9f9796b89833a4ca4a7da92770 |
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font_01_sfnt_off0000d623.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xD623 | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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font_02_sfnt_off0000ee3a.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xEE3A | 10636 bytes |
SHA-256: 450ce1f118a709a40cff8642ad4095263b88871f47b017f664dffa96ca133c5f |
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