MALICIOUS
164
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
This PDF file contains embedded JavaScript and numerous external URIs, many of which point to compromised WordPress sites acting as a link farm. The ML classifier and ClamAV detection strongly indicate malicious intent, likely for phishing or malware distribution. The embedded JavaScript is a common technique for executing malicious code or redirecting users to malicious sites.
Machine Learning
- Nyx PDF Classifier malicious score 0.9837
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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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://infrive.ru/uplcv?utm_term=flutter+ios+deploy
- http://www.advancedevents.ro/wp-content/plugins/formcraft/file-upload/server/content/files/1613675aeedd7e---femudafosorotod.pdf
- http://gs-metals.com/filespath/files/20210911093755.pdf
- http://hexindechem.com/upload/files/51751151780.pdf
- https://www.financedeclined.com.au/wp-content/plugins/formcraft/file-upload/server/content/files/1614a261142941---zikodetozisubutaso.pdf
- https://www.bountyvacation.com/wp-content/plugins/formcraft/file-upload/server/content/files/1613108a048fc9---boxafof.pdf
- http://www.fullertherapy.com/wp-content/plugins/formcraft/file-upload/server/content/files/161302fc475148---34168995657.pdf
- http://grimastone.ru/files/vetaxa.pdf
- http://due.pt/js/ckfinder/userfiles/files/zafefinufamunase.pdf
- http://copy-office.it/userfiles/file/14810445532.pdf
- http://syuncyoku.jp/upload/file/77117262091.pdf
- http://chingyi.tw/userfiles/files/fatirelesufofuni.pdf
- https://kemxoi.vn/app/webroot/files/images/pages/files/pugoxukakojinitujowavin.pdf
- http://saothienemb.com/uploads/images/files/reguwikozilesetexelusaz.pdf
- http://cabinet-blin.fr/ressource/site-image/files/jaxeratesokukisomagofaro.pdf
- https://www.hotelrestaurantmacarena.fr/ckfinder/userfiles/files/nuzag.pdf
- http://www.lentilles-progressives.fr/wp-content/plugins/formcraft/file-upload/server/content/files/1614331b09a1b1---43859961233.pdf
- http://bezagsecurity.cz/userfiles/9383315297.pdf
- https://asigurareingermania.ro/wp-content/plugins/super-forms/uploads/php/files/joj7ov43seoo2ifm9lnl9f1nl1/33203522612.pdf
- http://indagosrl.it/userfiles/files/jisutoxubewowozekedizosen.pdf
- http://bassbasement.org/userfiles/file/54575307530.pdf
- http://liveisagenix.com/ckfinder/userfiles/files/nafanogid.pdf
- https://solelane.com/ckfinder/userfiles/files/22101538037.pdf
- http://arniestribu.com/campannas/file/rojatuzesusamapizofo.pdf
- http://fishngrill.iorderfoods.com/uploads/files/34196829513.pdf
- https://astefin.ro/ckfinder/userfiles/files/morifakuwivorakev.pdf
- http://solis.altrodesign.eu/ckfinder/userfiles/files/85546183800.pdf
- http://microsolder.hu/userfiles/files/tidopi.pdf
- http://www.groupementpecheduloir.com/ckfinder/userfiles/files/xijusogalagatilenapako.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_off0000b4f4.bin9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xB4F4 | 16792 bytes |
font_01_sfnt_off0000cd06.bin40718a575a9cd5f5cf40a288a12c583abea84e9b22681d7415bb12cb4882dad5 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xCD06 | 15668 bytes |
font_02_sfnt_off0000f435.bine24314c8708b6085bb41ec07541176012789cf38495d6154863e4aaab721720f |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xF435 | 10312 bytes |
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