MALICIOUS
164
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
This PDF file was flagged by ClamAV as Pdf.Phishing.Trojan and exhibits characteristics of a link farm, directing users to multiple external URLs. The presence of embedded JavaScript, indicated by the PDF_JS heuristic, suggests an attempt to execute malicious code or redirect the user. The numerous external links, many hosted on compromised CMS uploads, strongly indicate a phishing or malware distribution attempt.
Machine Learning
- Nyx PDF Classifier malicious score 0.9980
Heuristics 7
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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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Embedded JS stream low PDF_JSPDF references a /JS stream. Generic JavaScript is common in benign forms; specific dangerous APIs are scored by separate rules.
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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://laborke.ru/uplcv?utm_term=organic+chemistry+jonathan+clayden+pdf PDF link annotation
- https://sharzh-ufa.ru/wp-content/plugins/super-forms/uploads/php/files/ba1e8f884406e223db9731e3662b8614/vamudabedoza.pdfIn PDF document text
- http://dtjxbpzx.com/filespath/files/20210904071537.pdfIn PDF document text
- http://studiotecnicopetrillo.eu/userfiles/files/luvosaj.pdfIn PDF document text
- http://plymouth-logs.co.uk/ckfinder/userfiles/files/44121659369.pdfIn PDF document text
- http://mascotdd.com/file_media/file_image/file/92341226168.pdfIn PDF document text
- https://hoanghaie.com/Images_upload/files/66660498262.pdfIn PDF document text
- https://seikai.jp/free_images/files/fawolasujigow.pdfIn PDF document text
- http://daydeothe.vn/rich_editor/file/kegimi.pdfIn PDF document text
- http://vitalchurchesinstitute.com/files/file/vapudijisodipukubajuj.pdfIn PDF document text
- http://ginzaoakland.com/uploads/files/80939142688.pdfIn PDF document text
- https://biholka.cz/uploades/userfiles/file/35631672206.pdfIn PDF document text
- https://0900107678.com/upload/file/menivir.pdfIn PDF document text
- http://china-guolin.com/filespath/files/20210922203502.pdfIn PDF document text
- http://ambiance-cinema.fr/wp-content/plugins/super-forms/uploads/php/files/cf4a17bd15a74dfeedd6d02731d1b69a/3095964772.pdfIn PDF document text
- https://yunglin.com/uploadpic/files/46762261365.pdfIn PDF document text
- http://wixoon.hu/upload/file/kulamaditavunezovelep.pdfIn PDF document text
- https://namratalakhotia.com/userfiles/files/zaledowoxolisogexara.pdfIn PDF document text
- http://csc0532.com/userfiles/file/20210903215235_kmhig4.pdfIn PDF document text
- http://www.findvoters.com/userfiles/file/jexutukukikonuxupab.pdfIn PDF document text
- https://clubberia.com/js/ckfinder/userfiles/files/47405564404.pdfIn PDF document text
- https://catherinehourihan.art/wp-content/plugins/super-forms/uploads/php/files/6cfa77612f70f95ad03a31d2989d6ba7/katedexajusisoxinili.pdfIn PDF document text
- http://interreg-ipa-husrb.com/downloads/jinuxijopimomefijemupet.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_off0000bc5d.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xBC5D | 18188 bytes |
SHA-256: 63c68b88373715ba1e378ce0e1ae87caaf1e0ad4cdc79cbeb7653c0c80888932 |
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font_01_sfnt_off0000eb24.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xEB24 | 11336 bytes |
SHA-256: 3e07afdc3ab390e08d942f862784795ea5af4356cb7935d60e1980af15741b2a |
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font_02_sfnt_off00010575.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x10575 | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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