MALICIOUS
164
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1203 Exploitation for Client Execution
The PDF contains embedded JavaScript and numerous links pointing to compromised CMS uploads and disposable hosting, indicating a phishing or redirection scheme. The ML classifier and ClamAV detection strongly suggest malicious intent, likely to lure users to malicious sites or download further payloads.
Machine Learning
- Nyx PDF Classifier malicious score 0.9912
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 http://koreaseals.com/ckfinder/userfiles/files/sizixekezojotowubawite.pdf
- https://gkia.org/kingkong/userfiles/files/fakegibovuwapuzubon.pdf
- http://asirakademi.com/resimler/files/70907401856.pdf
- https://cooperadora.grupocreartel.com/documentos/archivos/65422923231.pdf
- http://3wsystems.com/shipinc/userfiles/files/pegujekuzujorosaramujaxi.pdf
- http://nuk-amro.de/userfiles/file/53591725058.pdf
- https://www.americanapi.com/wp-content/plugins/formcraft/file-upload/server/content/files/16131d05463cf8---mopobepumugofuf.pdf
- http://3mfa.com/images/editor/files/84023719272.pdf
- http://www.msjcongregation.org/www/js/ckfinder/userfiles/files/10984410683.pdf
- http://cicm2015.mist.ac.bd/app/webroot/ckfinder/userfiles/files/keluneluledusirubododizu.pdf
- http://www.mostex.sk/files/articles/file/pogamuda.pdf
- http://huucodatlanh.com/userfiles/file/vixejojugumudixatamaji.pdf
- http://kameleonhastanc.hu/files/file/21967057034.pdf
- http://principessavencanice.com/wp-content/plugins/formcraft/file-upload/server/content/files/1614151e0b4698---rosanujemefiv.pdf
- http://cgpreceptor.com/ckfinder/userfiles/files/kofajir.pdf
- https://www.adoz.cz/ckfinder/userfiles/files/38147099693.pdf
- https://vdbergelectro.nl/wp-content/plugins/super-forms/uploads/php/files/b5c6c20ee703812aabf8c8eb82d7f907/5623921238.pdf
- http://www.moyekolodin.com/files/goruponadufa.pdf
- http://classicalgardenornaments.com/uplds/file/xepawegovuf.pdf
- http://3qbuy.com/CKEdit/upload/files/wupalejurivajonu.pdf
- https://stmpallet.com/ckfinder/userfiles/files/25582604588.pdf
- http://egitara.com/upfiles/files/diratowu.pdf
- http://logisticsnetworks.net/ckfinder/userfiles/files/sijewizigizodow.pdf
- http://futimisdev.com/userfiles/file/rejuzovapijivesatosub.pdf
- http://xn--dlek-5qa.com/admin/UserFiles/file/42040421898.pdf
- https://lixtech.com.tw/ckfinder/ckfiles/files/xatagirenavokenowoboxufom.pdf
- https://feedproxy.google.com/~r/Uplcv/~3/YTWXjIUwRh0/uplcv?utm_term=ayn+rand+objectivism+book+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_off0000df5b.bin9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xDF5B | 16792 bytes |
font_01_sfnt_off0000f772.bin16a6a1321754508cf04faa8c402cc07ff2a5bf8aa9399a539d65a676adfdb4f1 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xF772 | 11256 bytes |
font_02_sfnt_off000111a9.binf8b59ff66468c53cce6cd2be6fa340c224dd1cf1c608d930884c77b33d2da333 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x111A9 | 18376 bytes |
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