MALICIOUS
196
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1203 Exploitation for Client Execution
The file is a PDF that uses a social engineering lure to trick the user into installing a browser extension or update. This is a common tactic for credential theft or malware delivery. The PDF contains numerous links to external websites, many of which are hosted on compromised WordPress sites, suggesting a link farm designed to distribute malicious content. ClamAV detection and ML classification further support its malicious nature.
Machine Learning
- Nyx PDF Classifier malicious score 0.9972
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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Browser extension / update installation lure high SE_BROWSER_INSTALL_LUREDocument tells the user to install a browser extension, plugin, viewer, or browser update to view content — a common social-engineering path for credential theft and malware installation
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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://www.cir.cloud/wp-content/plugins/formcraft/file-upload/server/content/files/160bc76fd5e7f0---71083789432.pdf
- http://www.radioemka.com/wp-content/plugins/formcraft/file-upload/server/content/files/160aaa9597d2a6---nobubuxunixosewulifu.pdf
- http://steps4cancer.org/clients/a/a7/a78c374070a178914b502abaf3db82b8/File/bimuvatisinelixiduzutik.pdf
- https://sweetestspaparty.com/wp-content/plugins/formcraft/file-upload/server/content/files/160706680355e1---jakumuvevozujakawojezufiw.pdf
- https://trimix.bg/UserFiles/File/fisabaroxefuragegoba.pdf
- http://buddhavehicle.com/userfiles/file/jawalepaletijukasibopuro.pdf
- https://poolpoint.be/uploads/file/18889080088.pdf
- http://www.tobywells.org/media/fckdir/file/2326097061.pdf
- http://hellnocancershow.com/wp-content/plugins/formcraft/file-upload/server/content/files/160a985dc2e335---63429481752.pdf
- https://allianceflooring.net/wp-content/plugins/super-forms/uploads/php/files/0f125ab155f7e10326b92995f4825a77/34652748467.pdf
- https://travelselection.us/wp-content/plugins/formcraft/file-upload/server/content/files/16091206c79672---kixewadivetob.pdf
- http://shreejians.com/userfiles/file/suzobopiwopusabimigud.pdf
- http://www.radiopopiatej.com/wp-content/plugins/formcraft/file-upload/server/content/files/160894a96c8acd---motaz.pdf
- http://expresskaliski.info/file/833966377.pdf
- https://contabil-fiscal.ro/mm/file/pavuvadunarewujikok.pdf
- https://paloaltospeakerseries.com/wp-content/plugins/super-forms/uploads/php/files/cab6d2054bed9866b9fa5eda6a4df72b/surojolejamokoxada.pdf
- https://flyags.com/editorResources/file///numulemufelevutemevan.pdf
- http://warraichmeats.com/wp-content/plugins/formcraft/file-upload/server/content/files/16085c995c06ff---31042444550.pdf
- https://comesa.com.pe/wp-content/plugins/super-forms/uploads/php/files/n5ssjdugaapu93ib2qiiu20fl4/rowileninamefaxenojodawo.pdf
- https://burlingame.com/wysiwygfiles/file/31587422344.pdf
- https://perleyparish.org/wp-content/plugins/super-forms/uploads/php/files/b6e5a2e61156afcec41bad69890db1d8/26372783098.pdf
- https://feedproxy.google.com/~r/skout/mBVl/~3/cv9VXjIrmdE/uplcv?utm_term=m2t+to+mp4+converter
- 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_off0000e6d7.bin4a3e9f3ffc7359f6000aaddc8da8b6d66db14466f63caf3dd743bdaa0739912e |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xE6D7 | 10324 bytes |
font_01_sfnt_off0000fe2e.bin33da8bc6df00df00891de0784871c0b64ef24895670b1000ae31a29fe210c766 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xFE2E | 17196 bytes |
font_02_sfnt_off00012b06.bin9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x12B06 | 16792 bytes |
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