MALICIOUS
164
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
This PDF file contains embedded JavaScript, a common technique for executing malicious code. The heuristics indicate it's a link farm pointing to compromised WordPress uploads and disposable hosting, suggesting a phishing or malware distribution attempt. The ML classifier and ClamAV detection strongly support its malicious nature, likely redirecting users to malicious sites.
Machine Learning
- Nyx PDF Classifier malicious score 0.9932
Heuristics 7
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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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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=couplet+meaning+in+english
- http://dgjst.com/upfile/file/xikakid.pdf
- https://lawtutors.co.uk/js/ckfinder/userfiles/files/sukonopajasufoparixekamav.pdf
- https://stellabakingcompany.com/wp-content/plugins/formcraft/file-upload/server/content/files/16078c7c5d8b0c---44032298513.pdf
- https://www.nordatec.com/wp-content/plugins/super-forms/uploads/php/files/q30o5mhgpkstpmvbkpiq32ctr8/bidavedevuber.pdf
- http://polyalpan.hu/_user/file/timemisutarefizipevitema.pdf
- http://www.insurancedirectcanada.ca/wp-content/plugins/formcraft/file-upload/server/content/files/160778534069b1---73774996306.pdf
- https://shotclock.ca/wp-content/plugins/super-forms/uploads/php/files/321b98a17c17fec26baf0888b43dc5ec/47389080825.pdf
- https://www.mercedesbenzofaustinservice.com/wp-content/plugins/formcraft/file-upload/server/content/files/1606cf46596216---91983045972.pdf
- https://davebakeragency.com/wp-content/plugins/super-forms/uploads/php/files/aaff2b1d4a64977e38b5367e22fd7bda/kebudologisalanotixel.pdf
- https://sellos-mecanicos.com/wp-content/plugins/super-forms/uploads/php/files/cfda004c32d439aaf1cead57b97bbbea/92762469307.pdf
- http://www.timtransportes.com/home/wp-content/plugins/formcraft/file-upload/server/content/files/16075c0f880133---bobovo.pdf
- https://vieclamday.com/userfiles/file/mexejajemixizaso.pdf
- https://2acontractor.it/images/file/jafitopogajisisebu.pdf
- https://ltanimalpark.com/wp-content/plugins/super-forms/uploads/php/files/093dad84c1449350f907400af7acdfab/37604118076.pdf
- https://forumhotel.by/wp-content/plugins/super-forms/uploads/php/files/ka0f3prn7am7on4b85mhbur457/31713527367.pdf
- https://geniodelweb.com/file/wajig.pdf
- https://www.pferde-fuer-unsere-kinder.de/wp-content/plugins/formcraft/file-upload/server/content/files/160ad794b3bcde---nomijuxakixozejuka.pdf
- http://bright-mineral.com/uploadfile/file/2021052720561741.pdf
- http://www.cafeinca.com/img/public/contenido/file/lozizeruwerevotosetokur.pdf
- https://www.parkgest.ch/wp-content/plugins/formcraft/file-upload/server/content/files/160a54f83eeb96---6030446635.pdf
- http://classiccar-jp.com/js/upload/files/84569453917.pdf
- https://apparel.allianceflooring.net/wp-content/plugins/super-forms/uploads/php/files/87efd922d5256e213289b538a5c32baa/48093869835.pdf
- http://www.adatechotomasyon.net/wp-content/plugins/formcraft/file-upload/server/content/files/160721c0bc598e---risumijifurewew.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 4
Files carved from inside the sample during analysis.
| Filename | Kind | Source | Size |
|---|---|---|---|
stream_005_off000141bc.bin8e04dca62225f9bd49d1a27ac606bf20201af3697caa3e80c54bd249b3ddf89a |
decompressed-pdf-stream | PDF FlateDecoded stream at offset 0x141BC | 17260 bytes |
font_00_sfnt_off0000e159.bin804dd07eac7d81e9f92c0a1632ac8f519bce7f26764229a2564936492608de1c |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xE159 | 18076 bytes |
font_01_sfnt_off00011132.bin9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x11132 | 16792 bytes |
font_02_sfnt_off00012949.bin4d25f9cabd561c2b2f8badd2741d641a7606f026d51c24159d840301926ee28a |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x12949 | 10732 bytes |
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