MALICIOUS
196
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1203 Exploitation for Client Execution
The PDF file was flagged by multiple heuristics, including ML classification and ClamAV, indicating malicious intent. The 'SE_BROWSER_INSTALL_LURE' heuristic strongly suggests the document's purpose is to trick users into installing a browser extension or update. The embedded URLs point to various hosting locations, some of which are compromised WordPress uploads, further supporting a phishing or malware distribution scheme.
Machine Learning
- Nyx PDF Classifier malicious score 0.9846
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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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://maggies-handmade.com/UserFiles/files/xaxuwaxazipezekevezabekev.pdf
- https://baobiachau.com/luutru/files/67322557491.pdf
- https://loskutova.site/wp-content/plugins/super-forms/uploads/php/files/09842cd0f79154bafc7acd892f2a39a5/tirojumalujolire.pdf
- http://lalitas-thaimassage-spa.de/wp-content/plugins/formcraft/file-upload/server/content/files/16137cf57a75d3---32054938031.pdf
- http://bukvoznaika.ru/ckfinder/userfiles/files/28683158666.pdf
- https://parkettworld.com/upload/files/2763287764.pdf
- https://ekransamara.ru/files/binorazo.pdf
- https://ratosatu.com/contents/files/86053757799.pdf
- http://ecoaga.com/documentos/file/vutas.pdf
- http://scsychem.com/upload/files/28490842448.pdf
- https://theptaynam.vn/upload/files/94601235317.pdf
- http://ruresept.ru/files/file/21801432159.pdf
- http://imhkayseri.com/resimler/files/13972376376.pdf
- https://matraci.info/UserFiles/File/giwuzibapizunilawotip.pdf
- https://sanaspinler.com/calisma2/files/uploads/90502878626.pdf
- http://abwingsva.com/uploads/files/nifukozutog.pdf
- http://xn--80aaffebba2apgigwiiececnggk9e4k.xn--p1ai/pict/file/83208547875.pdf
- http://tinavaron.com/ckfinder/userfiles/files/74673265360.pdf
- http://bestofbeer.ru/ckfinder/userfiles/files/48500332061.pdf
- https://dimensioninteractive.com/WYSIWYGImage/file/91504478799.pdf
- https://hongmao.tw/uploads/files/202109081649591744.pdf
- https://ibliberia.com/ckfinder/userfiles/files/77661986674.pdf
- http://www.oiseaubleu-promo.fr/userfiles/file/firapanuvuzoro.pdf
- https://www.goldenplanet.dk/wp-content/plugins/formcraft/file-upload/server/content/files/16131aefb48115---gukorolexoled.pdf
- https://khambenhxahoi115.com/images/files/vewoko.pdf
- http://annassteen.com/ckfinder/userfiles/files/loduzetidojatisi.pdf
- https://feedproxy.google.com/~r/Uplcv/~3/DOqCt-cVA4I/uplcv?utm_term=kiwi+browser+chrome+extension
- 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_off0000df93.bin9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xDF93 | 16792 bytes |
font_01_sfnt_off0000f7aa.bin84c8751ee1b347d772be5917637bcda7cc3303b5341751a3d44acbf3fd3f5b7f |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xF7AA | 10608 bytes |
font_02_sfnt_off00010fd6.bin91150dfbef61428c7da76623a082ccc2276e4e5cb3aff541286f97f1fb29fd34 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x10FD6 | 17924 bytes |
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