MALICIOUS
164
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
The sample is a PDF file containing embedded JavaScript, which is a common technique for exploiting PDF vulnerabilities. It also contains numerous URLs, many of which point to compromised websites or disposable hosting, suggesting a link farm designed to redirect users. The ClamAV detection and ML classifier strongly indicate malicious intent, likely for phishing or distributing further malware.
Machine Learning
- Nyx PDF Classifier malicious score 0.9961
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 http://xn--90ad5ackt1d.xn--p1ai/wp-content/plugins/super-forms/uploads/php/files/248e7e5295340b2c262c57c0fec37f90/13331863733.pdf
- http://intechsol.kz/wp-content/plugins/formcraft/file-upload/server/content/files/1607c5ab8c2936---gusunuz.pdf
- http://allaboutdowney.com/userimages/jilazi.pdf
- https://wills.sg/wp-content/plugins/super-forms/uploads/php/files/83a614adbb9d6fe4b64859785a73f75f/semale.pdf
- http://adabaskimerkezi.com/upload/file/44423431774.pdf
- https://pabausa.org/wp-content/plugins/formcraft/file-upload/server/content/files/1608b59c0760a7---89492274769.pdf
- http://daearesort.com/FileData/ckfinder/files/20210619_7ACE826FC6E5E236.pdf
- http://tetraeng.it/userfiles/files/tenovejes.pdf
- http://westmoorclassof1965.com/clients/5/52/52ec68f2b927accf75267cb07bfcc891/File/bapazeguxenixeleko.pdf
- https://medtek.vn/storage/file/62096944987.pdf
- https://realestateconnect.biz/wp-content/plugins/super-forms/uploads/php/files/p21tbqul1rgqji3iggk2l1bjs0/gokit.pdf
- https://leo-translate.com.ua/wp-content/plugins/formcraft/file-upload/server/content/files/160830486d3d8e---doraxenawajileten.pdf
- http://easytravel63.ru/ckfinder/userfiles/files/46282245092.pdf
- http://www.radiopopiatej.com/wp-content/plugins/formcraft/file-upload/server/content/files/160cfba525bac2---18288960028.pdf
- http://vasvaripalmuzeum.hu/upload/file/32405992092.pdf
- http://1137.jp/app/webroot/js/ckfinder/userfiles/files/79133977871.pdf
- http://alnadaoil.com/userfiles/file/ximojekituja.pdf
- https://igruppe.no/ckfinder/userfiles//files/ragojitulemoronup.pdf
- https://fentesmakina.com/paket/upload/files/mosozukefijef.pdf
- http://www.kidnuri.com/wp-content/plugins/formcraft/file-upload/server/content/files/16094106996c70---58559692968.pdf
- https://www.growxponential.com/wp-content/plugins/super-forms/uploads/php/files/5s3l4uvq0k7reivq32gjcieqlf/giraliwatav.pdf
- https://www.bountyvacation.com/wp-content/plugins/formcraft/file-upload/server/content/files/16092b04677750---73694799894.pdf
- https://feedproxy.google.com/~r/Uplcv/~3/S30rS-6n6vg/uplcv?utm_term=jobless+claims+report+time
- 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_off0000f0fa.bin40412cf77720ad310e72f25a4b26f73d41fa042201098810d4e0126a891dd287 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xF0FA | 17572 bytes |
font_01_sfnt_off00011f6a.bin9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x11F6A | 16792 bytes |
font_02_sfnt_off00013781.binac6000e311de43df20ad1b21e1ed80dc46d50d8773c9c4b6aaf6375fd2043592 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x13781 | 10560 bytes |
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