MALICIOUS
164
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
The PDF contains numerous external URIs, many of which point to compromised WordPress sites or disposable hosting, indicating a link farm designed to redirect users. The presence of embedded JavaScript and a high ML classifier score further support its malicious nature. The primary goal appears to be directing users to potentially malicious or phishing websites.
Machine Learning
- Nyx PDF Classifier malicious score 0.9985
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 http://www.1000ena.com/wp-content/plugins/formcraft/file-upload/server/content/files/1608a7d0ed2b62---wedaxolorigurarabipuk.pdf
- https://psychotherapie-coeppicus.ch/userfiles/files/nabibajuvunafufotijel.pdf
- https://floridainvestment.cz/files/file/28212214336.pdf
- https://bilbox.es/wp-content/plugins/super-forms/uploads/php/files/a5bfc366de8a8dd829fb7ed278d5b993/fujopitagugimemimofonan.pdf
- https://bursaceviritercume.com/wp-content/plugins/formcraft/file-upload/server/content/files/160a60b2d5878d---waketelajurik.pdf
- http://xn--80ahcjevtqq.xn--p1ai/ckfinder/userfiles/files/bagevufofupolasi.pdf
- http://www.jokilaaksonratsastajat.fi/file/16297417558.pdf
- http://toroisg.com/public/images/files/93772043087.pdf
- https://www.traveltimevipp.com/wp-content/plugins/super-forms/uploads/php/files/8791703029d83cffdf148ba30ba40566/dinopade.pdf
- https://jairdefreitas.com/ckfinder/userfiles/files/xipuxoziravepege.pdf
- http://phelieuviethung.vn/upload/files/jivozamivirumuj.pdf
- https://diversifiedhumansolutions.com/wp-content/plugins/super-forms/uploads/php/files/053117425c62cea2bfcbd2e089aaa11d/xulibajufarepejule.pdf
- http://eko-inwest.eu/upload/file/setebisotamixusiluxe.pdf
- http://phantasos.org/userfiles/file/sizadop.pdf
- http://eaas-journal.org/survey/userfiles/files/73916520206.pdf
- https://ascinfratech.com/clientprojects/trading/file/bapemupavidevodakizekija.pdf
- http://shijijiaming.net/filespath/files/20210804003506.pdf
- https://beautyreviveshop.com/newerac2c/userfiles/file/rugemawawibisoseze.pdf
- http://nuovartea.eu/userfiles/files/61448846666.pdf
- https://anthonygillant.com/userfiles/file/lofawevukiretid.pdf
- http://technoauto.jp/js/upload/files/xatewawibudafap.pdf
- http://lookupagency.es/wp-content/plugins/formcraft/file-upload/server/content/files/1609448a519462---nekitawatupadodud.pdf
- http://www.catalogodecineargentino.com/wp-content/plugins/formcraft/file-upload/server/content/files/160a133a67e51c---89766678317.pdf
- http://mahnomenalumni.com/clients/879209/File/vejamaluwaligoz.pdf
- https://feedproxy.google.com/~r/Uplcv/~3/3CAf4wW3hvY/uplcv?utm_term=answer+to+why+did+you+choose+this+university
- 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_off000103a8.bin62d2ea212d247d4e618362d02f740c3a6761eaf4c1c1d4fbc7cf5b2afa73a8fb |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x103A8 | 17724 bytes |
font_01_sfnt_off0001313d.bin9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x1313D | 16792 bytes |
font_02_sfnt_off00014954.bin820dc2d699e1e9cae1f168797db291c8b48ea7b3284132c01125d2e4f52123cd |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x14954 | 10604 bytes |
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