MALICIOUS
196
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1203 Exploitation for Client Execution
This PDF document was flagged by multiple heuristics and a machine learning classifier as malicious. It contains a link farm pointing to various compromised WordPress sites and disposable hosting, suggesting an attempt to distribute malicious content. The 'SE_BROWSER_INSTALL_LURE' heuristic indicates the document likely prompts the user to install a fake browser update or extension, a common lure for malware delivery or credential theft. No scripts were extracted, but the presence of external URLs and the nature of the heuristics strongly suggest a phishing or malware distribution attempt.
Machine Learning
- Nyx PDF Classifier malicious score 0.9942
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://allytemp.ru/uplcv?utm_term=android+chrome+new+tab+page
- http://marmaraisg.com/images_upload/files/36769988057.pdf
- https://lazeo.nl/userfiles/file/novikanivaz.pdf
- http://dobryremont.pl/ebobas/portal/app/webroot/img/tmp/file/16306786151646.pdf
- https://satbietthu.com/luutru/files/38467100862.pdf
- http://cofetariafraguta.ro/UserFiles/file/78725677671.pdf
- https://rafaela-motores.com/userfiles/file/nijazodakamogomivufa.pdf
- http://fashioneducation.ru/userfiles/file/10442642070.pdf
- http://www.hydro-tg.pro/upload/file/57125216609.pdf
- http://dobre-jaja.com/Upload/file/64785215115.pdf
- http://bluebossa.pl/files/file/72165202357.pdf
- https://shrmivirtual.org/wp-content/plugins/super-forms/uploads/php/files/39649876fde23151cf1f1e28a82139eb/mazozixigidewilesimade.pdf
- http://baharemadinah.com/wp-content/plugins/formcraft/file-upload/server/content/files/1612ec7f99f5d6---38568231570.pdf
- http://eakqshop.com/ckfinder/images_store/files/nufalibumuwisuwajosuwebib.pdf
- https://www.restaurant-latableedevercel.com/ckfinder/userfiles/files/4563587336.pdf
- http://cohn-vossen.com/wp-content/plugins/formcraft/file-upload/server/content/files/1613282c9ec4fe---33553103379.pdf
- http://www.taxivanclass.com/uploads/ckfinder/files/83981331132.pdf
- http://duplisite.com/userfiles/file/jukinajironewuboganena.pdf
- http://szhlfz.net/upload/42326184164.pdf
- https://aparcaderoshaddaichile.cl/uploads/images/files/lejufusulelibeduran.pdf
- https://uudanbury.life/files/file/3629756722.pdf
- https://heritagelogs.com/wp-content/plugins/super-forms/uploads/php/files/7dr249eatl6kr17jnfteplpvsl/supopazuvavefavutatudope.pdf
- https://mepho.hu/ckfinder/userfiles/files/80231484766.pdf
- https://dalyanestate.com/userfiles/file/rofugupokozokafusiz.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_off00010a6e.bin7550b0d3fd03f4c83ea40a3480c73279d58960303fd945e2fd98832bc3acd27e |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x10A6E | 18680 bytes |
font_01_sfnt_off00013a9c.bin9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x13A9C | 16792 bytes |
font_02_sfnt_off000152b3.bin77197e881e525f76166e82d79589db7ac74ffb6d68e35749b08e7fd07d8d06e6 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x152B3 | 10956 bytes |
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