MALICIOUS
172
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1059.007 JavaScript
T1203 Exploitation for Client Execution
The PDF contains embedded JavaScript and multiple external links, some pointing to compromised WordPress sites. The presence of a 'download button' lure and the ML classifier's high confidence score, along with ClamAV detection, strongly indicate malicious intent. The embedded JavaScript likely facilitates the download and execution of a secondary payload, contributing to the overall phishing and exploitation workflow.
Machine Learning
- Nyx PDF Classifier malicious score 0.9974
Heuristics 8
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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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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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Visual download / call-to-action button lure low SE_DOWNLOAD_BUTTONDocument contains a call-to-action phrase ('Click here to download', 'Download Now', etc.) — low-signal unless other findings point to a malicious workflow
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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://drafthe.ru/uplcv?utm_term=wallpaper+4k+note+20
- http://proximeo.com/ckfinder/userfiles/files/gazejatamuverata.pdf
- https://mma-montessori.com/admin/ckfinder/userfiles/files/92002239737.pdf
- https://guapa2.com/admin/fck/file/jogajipemi.pdf
- http://cocoabuterol.com/upload/files/50395580200.pdf
- https://marathonlaval.com/userfiles/files/99996012044.pdf
- http://lactopad.com/uploads/files/memaxonobotel.pdf
- https://hmjrgoldhockey.org/wp-content/plugins/super-forms/uploads/php/files/ff20d7ce89ee80f941290bb8d15c5f27/tonejuburakumotolulogufu.pdf
- https://gtsonline.nl/wp-content/plugins/super-forms/uploads/php/files/i65emkgioeiva4ufd307j2dlni/897914540.pdf
- https://cafesca.mx/ckfinder/userfiles/files/18818145779.pdf
- https://iamtimeshare.com/userfiles/file/6393695327.pdf
- https://powerliteaac.com/userfiles/file/83092739809.pdf
- http://escolacaritas.com/wp-content/plugins/formcraft/file-upload/server/content/files/161356dc55dbcf---wetuzafugokowizijebuz.pdf
- http://hycxchina.com/filespath/files/20210908191547.pdf
- http://krevue.cz/UserFiles/File/52263104397.pdf
- http://collectifff.be/imgdb/accueil/files/suneporozukelumov.pdf
- http://xn--80aafjbawrcdgsodbdciig4a5v.xn--p1ai/pict/file/52940881644.pdf
- http://mirai-kankyo.com/userfiles/files/kexapuzubenen.pdf
- https://livstyle.ro/home/livstyle/public_html/uploads/files/bazatonolafujaveruj.pdf
- http://bfr-bialapodlaska.pl/userfiles/file/vobatuwomokabexepelo.pdf
- http://kondicionery-shodnya.ru/upload_picture/file/mufubipojelofuda.pdf
- https://mimpiindah2.com/contents/files/kopujezoguxoxulaxadebodu.pdf
- https://0286869143.com/editor_images/files/42453418834.pdf
- http://ugrctrani.it/userfiles/files/zeravosuwavoxoku.pdf
- http://k-ookuma.com/js/upload/files/gawasatupazubitodogewa.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_off0000d76f.bin9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xD76F | 16792 bytes |
font_01_sfnt_off0000ef81.bin5bddf14d50bd93bc3d041c1680aa393cedd982ddeef56a5d45419a4788237754 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xEF81 | 18076 bytes |
font_02_sfnt_off00011e7c.bind5ca6c73b06e37b16cd58f756ac3599d7636bf57139172b7e91dc71fdb5e7ca7 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x11E7C | 10388 bytes |
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