MALICIOUS
164
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
This PDF file contains embedded JavaScript and a link farm pointing to multiple distinct hosts, many of which are compromised WordPress sites. The ML classifier and ClamAV detection strongly indicate malicious intent, likely to phish or deliver a second-stage payload. The embedded JavaScript is likely responsible for initiating the redirection or payload download.
Machine Learning
- Nyx PDF Classifier malicious score 0.9953
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://gaseg.com/wp-content/plugins/super-forms/uploads/php/files/o4f2atqmgronmam52iak9p6efv/36430401031.pdf
- http://www.vitrierbxl.be/wp-content/plugins/formcraft/file-upload/server/content/files/160890f97db824---33712116782.pdf
- http://scard.vn/app/webroot/uploads/files/7299972544.pdf
- http://chukgoobok.com/files/fckeditor/file/13969295821.pdf
- https://formapolis.it/wp-content/plugins/super-forms/uploads/php/files/c1ddd0e056654672c42263bbdc1b37cb/44227569917.pdf
- https://www.quatainvestimentos.com.br/wp-content/plugins/formcraft/file-upload/server/content/files/160b4948033fa0---mutevovenez.pdf
- http://www.tiande-global.com/ckfinder/userfiles/files/62166496189.pdf
- https://98ing.com/upload/ck/files/20210625_231246.pdf
- http://oneself.pro/wp-content/plugins/formcraft/file-upload/server/content/files/16078bbf6c3bb3---lafubunuboxifi.pdf
- https://www.kiteschule-kiel.de/wp-content/plugins/formcraft/file-upload/server/content/files/160a05145e5443---jogelixakafuniwumerom.pdf
- http://www.sunarpazarlama.com/wp-content/plugins/super-forms/uploads/php/files/qs026s3qrsb4ipnic66gujun77/lobepixadibalabufenovo.pdf
- http://chicagohalo.com/wp-content/plugins/formcraft/file-upload/server/content/files/1609e4f6c1a80a---pivasobitezafip.pdf
- http://hgbs.de/userfiles/file/setogeg.pdf
- http://theydeserveastamp.org/wp-content/plugins/formcraft/file-upload/server/content/files/1606c76f2cd103---56994804836.pdf
- http://nuestratierrapremios.com/campannas/file/27664590113.pdf
- https://betonwerkendejonge.nl/wp-content/plugins/formcraft/file-upload/server/content/files/16089f83701f7f---jemijeka.pdf
- http://altaprecision.com/userfiles/file/6032762062.pdf
- https://i-chat.tw/js/ckfinder/userfiles/files/fuvixoninokapabizo.pdf
- https://theshairpodcast.com/wp-content/plugins/super-forms/uploads/php/files/3a6ee4bb2316911d03518cb10ab00b99/semovibone.pdf
- https://stellabakingcompany.com/wp-content/plugins/formcraft/file-upload/server/content/files/160a3ef7a00e78---gifulokunujazofodarab.pdf
- http://goref.ru/files/file/52053264323.pdf
- https://www.accidentinjuryalbuquerque.com/wp-content/plugins/super-forms/uploads/php/files/9ai2d0lhqp166ca3ucn3kmu327/52317517570.pdf
- https://aquafilling.com/userfiles/file/68064200906.pdf
- https://feedproxy.google.com/~r/1eyvgo/aqOO/~3/S30rS-6n6vg/uplcv?utm_term=wow+classic+beastmaster+hunter+build
- 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_off0000cff8.binff3292be65786cafff2a11dae0e6ebb1de1b4008c2f960f5ccb88130c322b9c6 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xCFF8 | 10952 bytes |
font_01_sfnt_off0000e936.bin6463c752cef8ada9cd46ca4ed4ef7c1e4eb4c2fb72a0aa851e4c22a5d466e9b8 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xE936 | 15772 bytes |
font_02_sfnt_off000111c0.bin9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x111C0 | 16792 bytes |
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