MALICIOUS
172
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1203 Exploitation for Client Execution
This PDF file was flagged by ClamAV as a phishing trojan and by an ML classifier as malicious. It contains an embedded JavaScript stream and a link farm pointing to multiple PDF files hosted on compromised websites, suggesting an attempt to distribute further malware. The heuristic 'SE_INVOICE_LURE' indicates the document's content is likely a fake invoice or payment request to trick the user into clicking the malicious links.
Machine Learning
- Nyx PDF Classifier malicious score 0.9974
Heuristics 8
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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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Fake invoice / payment lure low SE_INVOICE_LUREDocument contains invoice or payment language paired with an action verb — useful context when combined with link, macro, or attachment indicators
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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://glass-haus.ru/wp-content/plugins/super-forms/uploads/php/files/b6f766cbc33f71b9085746aec1c36885/93133276761.pdf
- http://judyzscotties.com/clients/1/1f/1f1ef5c9f72ce0e5bea5babf356718c6/File/xolexeneninevidakinidok.pdf
- https://www.marvistasales.com/wp-content/plugins/super-forms/uploads/php/files/2060a3fbae629182f7877bed6224818a/vapokemirojofokoxeri.pdf
- http://stlukesmn.org/clients/17773/File/tilelibobesulareluxo.pdf
- https://ises.ca/phpsites/vertical_living/uploads/file/wudanofubaxa.pdf
- https://alkhairi.co.uk/wp-content/plugins/super-forms/uploads/php/files/e52ef4d4790acdab91572639f9bb588f/jarapademuredolo.pdf
- https://adbetelparaguay.com/wp-content/plugins/super-forms/uploads/php/files/c59b9b393ffe7b310c6b9860265e6797/jomopi.pdf
- http://drive4smilesquebec.ca/clients/f/f5/f58105ca183540932673f5bf18e62671/File/54428807730.pdf
- https://criteriacambio.com.br/wp-content/plugins/super-forms/uploads/php/files/sb4rb36qcmv5j0t23ht84p57hi/kigome.pdf
- http://www.itbaloch.com/wp-content/plugins/formcraft/file-upload/server/content/files/1608ba81cb8067---masoloworipuduvelov.pdf
- http://sobsai.com/ckfinder/userfiles/files/91449745976.pdf
- http://akbmodel.com/wp-content/plugins/formcraft/file-upload/server/content/files/1606d290e9f22b---dolozu.pdf
- http://evabody.ro/wp-content/plugins/formcraft/file-upload/server/content/files/160741c31a5c49---6840046765.pdf
- https://evocative.ru/wp-content/plugins/formcraft/file-upload/server/content/files/16089e8dbe51cd---melejipiretagafusanedoxir.pdf
- http://funperm.ru/content/file/letewejomozodagikosegur.pdf
- http://www.victorian-manor.co.za/wp-content/plugins/formcraft/file-upload/server/content/files/160a6182feddbb---bitaluviwuned.pdf
- http://healthywithhart.com/res/file/dowagofiwokeb.pdf
- http://www.phsdcenter.com/temp/js/ckfinder/userfiles/files/damifadotaxixorusikam.pdf
- https://tenshinorchids.com/FCKeditor_upload/file/mabifikovoxavefizedis.pdf
- http://bluekeydigital.com/images/pic/file/nadirefepumapuxopisezato.pdf
- https://www.focus.mu/wp-content/plugins/super-forms/uploads/php/files/2f84ca9db87859c8348dbd732519f156/jagutitowojagasesiwemo.pdf
- http://www.maarsehoveniers.nl/wp-content/plugins/formcraft/file-upload/server/content/files/1609440a7726de---kolov.pdf
- http://beveragesgs.com/userfiles/file/nobidawumaxezonavi.pdf
- https://travelselection.us/wp-content/plugins/formcraft/file-upload/server/content/files/16096bab52cb35---fekizefitidik.pdf
- http://misosmile.com/upload/editor/files/8362382749.pdf
- https://feedproxy.google.com/~r/Uplcv/~3/cv9VXjIrmdE/uplcv?utm_term=cash+flow+projection+excel+sheet
- 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_off0000ef5c.bin13e2fd96a115362af0d8c70781d495e022ddfc0c119975b36c28247c947c3ce0 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xEF5C | 10924 bytes |
font_01_sfnt_off000108b2.bin9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x108B2 | 16792 bytes |
font_02_sfnt_off000120c4.bindeee5dc5c76aea99a409bbf964c33517c548d272a309c5a6c70e5d5da531bcfb |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x120C4 | 17080 bytes |
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