MALICIOUS
164
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
The PDF contains embedded JavaScript and numerous external URIs, many of which point to compromised CMS uploads or disposable hosting, forming a link farm. The ML classifier and ClamAV detection strongly indicate malicious intent, likely to redirect users to phishing or malware sites.
Machine Learning
- Nyx PDF Classifier malicious score 0.9948
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 https://crysiq.ru/uplcv?utm_term=soccer+random+unblocked
- https://hometeamcorp.com/images/usr/95397263860.pdf
- http://predit.ru/admin/ckfinder/userfiles/files/31119500307.pdf
- https://pharma-tools.eu/galeria/file/48630388119.pdf
- http://fortlauderdalelimorental.net/wp-content/plugins/formcraft/file-upload/server/content/files/1612fd2f134dbb---galexajuranisozaxo.pdf
- https://oilbasaro.com/web/images/ckfinder/files/20210915105216.pdf
- http://tajesink.com/Uploadfiles/files/95894945524.pdf
- http://gryfarmerskie.pl/pliki_wyswig/files/62769392902.pdf
- http://webbuilders.com/files/file/begeguluraxepowegazelix.pdf
- https://genesisbehaviorcenter.com/wp-content/plugins/super-forms/uploads/php/files/395e3bcc8c293083bb892265981a118b/xumusigoxalidusunujuzux.pdf
- https://jimsdelibrookhaven.com/demo/jimsdeli/admin/userfilesfile/84773755528.pdf
- http://www.naraihillgolf.com/admin/userfiles/file/pimusutix.pdf
- https://expungemyrecordnj.com/wp-content/plugins/formcraft/file-upload/server/content/files/161305071c70d7---ramulexojo.pdf
- http://maduraicaterers.com/app/webroot/js/ckfinder/userfiles/files/nutavuzafetadezekosoxugiw.pdf
- https://i-chat.tw/js/ckfinder/userfiles/files/64221146593.pdf
- http://www.psyforyou.nl/upload/fckeditor/file/21255043544.pdf
- http://zovsh.com/Uploadfiles/files/mawawosubaxufofusujame.pdf
- https://merohamro.com/ckfinder/userfiles/files/91736615407.pdf
- https://samirkumarpaul.com/ckfinder/userfiles/files/duvik.pdf
- http://iehyun.com/editorupload/file/fexunigevujanipapej.pdf
- http://abwgulfport.com/uploads/files/mulenobujejalako.pdf
- http://daeryuhealthcare.com/ckupload/files/rirejasumulinikepu.pdf
- http://onmamtour.com/FileData/ckfinder/files/20210907_2C13D2C7D4E7CA8F.pdf
- http://wsmr.us/userfiles/file/xupujimulan.pdf
- https://saikekanglun.com/filespath/files/20210911023810.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_off0000c304.bin9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xC304 | 16792 bytes |
font_01_sfnt_off0000db1b.bin9a0a095745a2bcfdeec3d959d2d7f254dee4dcc7e66e96c540e272f384120a6f |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xDB1B | 10580 bytes |
font_02_sfnt_off0000f32d.bin43042ddbb72233566df7ea9ead54da58270db54bfc85a3092e4357a8cd411c65 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xF32D | 19540 bytes |
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