MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1204.002 Malicious Link
The PDF file was flagged by ML classifiers and ClamAV as malicious. Heuristics indicate it functions as a link farm, directing users to multiple external URLs, some hosted on compromised WordPress sites. The presence of numerous URLs, including those with 'utm_term' parameters suggesting tracking, points towards a phishing or malware distribution campaign.
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://medvor.ru/uplcv?utm_term=apk+download+vidmate+app
- http://issaproject.com/app/views/panel/ckfinder/userfiles/files/kenujanuzekozilerofenug.pdf
- https://economiadecomunion.net/ckfinder/userfiles/files/96139677280.pdf
- http://botosani.ro/img/uploads/file/74698258397.pdf
- http://newshop.jp/archive/file/58666192312.pdf
- http://csc0311.com/userfiles/file/20210908214350_49iwjl.pdf
- https://buyafranchise.org/files/files/bisirituzuxikok.pdf
- http://www.belladermeestetica.com.br/wp-content/plugins/formcraft/file-upload/server/content/files/1613cfe64f2abd---68154181365.pdf
- https://geneolock.com/ckfinder/userfiles/files/99381983730.pdf
- http://deurwater.com/wp-content/plugins/formcraft/file-upload/server/content/files/1612eb5fa1718a---46963201673.pdf
- http://shsuorui.com/uploadfiles/fckeditor/20210919/file/16320281327584.pdf
- http://szintai.hu/ckfinder/userfiles/files/famoluruxuro.pdf
- http://studiolegalezullo.eu/userfiles/files/5081370584.pdf
- http://fixafilm.se/userfiles/file/desax.pdf
- https://editionsitaliques.com/userfiles/file/wuwugerabotivixupafepoxi.pdf
- http://www.uc-kushiro.net/images/library/File/17830480709.pdf
- https://bohemiamaestro.com/webpagebuilder/ckfinder/userfiles/files/9054720523.pdf
- https://www.rogierstoel.nl/wp-content/plugins/super-forms/uploads/php/files/r1hkt6f09avnd0ite5vlb6mcua/movipebepur.pdf
- http://dungcumaymoc.com/Images_upload/files/budofudemuj.pdf
- https://pvcmikser.com/upload/files/kozov.pdf
- http://www.museopizarra.com/ckfinder/userfiles/files/87556591852.pdf
- http://hylimusic.com/fckeditor/editor/filemanager/connectors/php/userfiles/file/niwalitilefefegasapufozut.pdf
- https://nikosdimos.gr/userfiles/file/67014609168.pdf
- https://8foro.exceltur.org/exceltur_nuevo/ckfinder/userfiles/files/tafazexo.pdf
- https://maharajganjtimes.com/assets/ckfinder/core/connector/php/uploads/files/21884124607.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_off0000e280.bin52d47ecfd6644aed847d542f86c83f8260aa2aac060d0a975e6186c4aea2ad31 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xE280 | 10512 bytes |
font_01_sfnt_off0000fa6f.bin9a074ea34caf8916e0af62a286b129dbe2419eaa1298d43d820a7c0a650c5c98 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xFA6F | 17488 bytes |
font_02_sfnt_off00012767.bin9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x12767 | 16792 bytes |
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