MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
The PDF file contains numerous embedded URLs that point to compromised WordPress sites and other domains, suggesting a phishing or malware distribution attempt. The ClamAV detection and ML classifier strongly indicate malicious intent. Although no scripts were explicitly extracted, the structure and URL patterns are consistent with a phishing lure designed to trick users into downloading further malicious content.
Machine Learning
- Nyx PDF Classifier malicious score 0.9849
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://laborke.ru/uplcv?utm_term=intermediate+drawing+exam+book+pdf+free+download
- http://aberdeeneyes.co.uk/wp-content/plugins/formcraft/file-upload/server/content/files/1609020987e776---65743098174.pdf
- https://nutstudio.it/userfiles/file/xurosamokaxexanezupod.pdf
- http://www.johnknox.ch/wp-content/plugins/formcraft/file-upload/server/content/files/160b433bb04329---fogowofote.pdf
- http://na-bytecek.cz/UserFiles/File/66196366830.pdf
- http://letresorellebio.it/userfiles/files/73108284034.pdf
- https://qamarapps.com/wp-content/plugins/formcraft/file-upload/server/content/files/160f9db6c6113e---7874452200.pdf
- http://www.photobreak.com.br/wp-content/plugins/formcraft/file-upload/server/content/files/160c36a238aea8---91678533106.pdf
- https://www.ideakliniksisli.com/wp-content/plugins/formcraft/file-upload/server/content/files/1611bc36e3e246---21423716251.pdf
- https://www.lowdoc-loans.com.au/wp-content/plugins/formcraft/file-upload/server/content/files/160af60e8928d6---tazenolajorekax.pdf
- https://patoman.ro/ckfinder/userfiles/files/59416338094.pdf
- https://asthasupermarket.com/userfiles/file/75498747992.pdf
- https://hglobaltourb2c.com/FileData/ckfinder/files/20210813_5B3F21062BB9BFAA.pdf
- http://erpos.sk/data/files/15681327713.pdf
- https://storage-in-motion.com/wp-content/plugins/formcraft/file-upload/server/content/files/16085f316a3fdf---wibipazelonojizesajam.pdf
- https://smarttactic.ro/wp-content/plugins/formcraft/file-upload/server/content/files/16080e471abd42---xolizoze.pdf
- https://wecareprogram.org/images/file/deforimapituwokagup.pdf
- http://bassbasement.org/userfiles/file/99582028600.pdf
- http://aimic.com/userfiles/file/97586654506.pdf
- https://vanrun-it.nl/userfiles/files/86788173901.pdf
- http://www.oknookna.pl/wp-content/plugins/formcraft/file-upload/server/content/files/160b86186d1fd4---35958484661.pdf
- https://sandzak.best/wp-content/plugins/super-forms/uploads/php/files/8b6ce03421085b6c1a9db2188e7172f1/74485958457.pdf
- http://avatars.ru/userfiles/file/timuzamewujev.pdf
- http://www.iycadana.org/wp-content/plugins/super-forms/uploads/php/files/kcv5bj8hp4mm7rkclvkebndu67/66269509788.pdf
- http://allg-gyn.ch/userfiles/file/satekekenalexeronitax.pdf
- http://inspiredindianfoundation.org/uploads/44869707685.pdf
- https://vnycc.com/userfiles/file/76689534247.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_off0000b352.bin9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xB352 | 16792 bytes |
font_01_sfnt_off0000cb69.binc179f8a41a72bd6d030ffcb738ed443095acbd2c4e191a8e410613a5395fe488 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xCB69 | 11044 bytes |
font_02_sfnt_off0000e4b5.bina7b40a62917ab5374c9dba14bee9d578cd77924372eceaf32c17045804b787a7 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xE4B5 | 14520 bytes |
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