MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
This PDF file was flagged by multiple heuristics and a machine learning classifier as malicious, specifically identified as a phishing trojan by ClamAV. The document contains a large number of embedded URLs, many pointing to compromised WordPress sites, suggesting a link farm designed to redirect users to malicious content. While no scripts were explicitly extracted, the nature of the embedded links and the overall detection strongly indicate a phishing or malware distribution attempt.
Machine Learning
- Nyx PDF Classifier malicious score 0.9952
Heuristics 6
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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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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://chcial.ru/uplcv?utm_term=thick+brown+hair
- http://trainternational.in/wp-content/plugins/formcraft/file-upload/server/content/files/160ccc803aa802---vejopev.pdf
- https://inclinedigital.com/wp-content/plugins/formcraft/file-upload/server/content/files/160c87df28a208---20659600635.pdf
- https://appfacile.it/file/1020427663.pdf
- https://g-ortho.com.br/wp-content/plugins/formcraft/file-upload/server/content/files/1607f303c2c5b8---fewezizevuseje.pdf
- https://morethancleaningservices.com/wp-content/plugins/super-forms/uploads/php/files/bb6ab0db04868c3a0a5b8576a95b0eee/zefifojajaga.pdf
- https://ivanda-commerce.hr/userfiles/file/2740951032.pdf
- https://singaporeroadshow.com/wp-content/plugins/super-forms/uploads/php/files/a25c2e120f8ab77cc5425e1640959f72/revoloxurimepagunotanog.pdf
- https://www.escon.it/wp-content/plugins/super-forms/uploads/php/files/f56d3938c34d1f51d25ee70e5079e026/tonipoxumupirikazu.pdf
- http://topopentertainment.com/wp-content/plugins/formcraft/file-upload/server/content/files/1608650efda585---74201711785.pdf
- http://studioingegneramato.com/userfiles/files/96989228011.pdf
- https://kayakbranson.com/wp-content/plugins/formcraft/file-upload/server/content/files/160858463e32d1---kubukeropaxa.pdf
- http://brilspa.ro/userfiles/file///petogulalenevatafitorebe.pdf
- https://dmddsgn.com/wp-content/plugins/super-forms/uploads/php/files/0894327cb17e7ea73b4749da7be1049d/28705783159.pdf
- https://myparrotfood.com/user_files/files/20377067878.pdf
- https://www.diktu.com/wp-content/plugins/formcraft/file-upload/server/content/files/1609080f4e9728---84899997745.pdf
- http://www.belladermeestetica.com.br/wp-content/plugins/formcraft/file-upload/server/content/files/160b40b456ff52---79393295307.pdf
- https://www.sevgiliyevideo.net/wp-content/plugins/formcraft/file-upload/server/content/files/160953322f173f---lavosafazutevudukoderon.pdf
- http://www.ausafrica.co.za/wp-content/plugins/formcraft/file-upload/server/content/files/1608e6aa098f8a---tagifuzorufogum.pdf
- https://www.inkfactory.pk/wp-content/plugins/formcraft/file-upload/server/content/files/16077bae7f3d6d---65382628288.pdf
- http://ontheedgeofnow.com/wp-content/plugins/formcraft/file-upload/server/content/files/16099e8d253af1---gaxanubezile.pdf
- https://youstore21.com/wp-content/plugins/super-forms/uploads/php/files/eaac804fcf5577133e5fef22304e13ff/fanaman.pdf
- https://ballestermultiservicios.com/wp-content/plugins/formcraft/file-upload/server/content/files/160887567b1230---62852338869.pdf
- http://www.acefence.com/wp-content/plugins/formcraft/file-upload/server/content/files/1608c8b620b3b1---81769392631.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_off0000ed5f.bin9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xED5F | 16792 bytes |
font_01_sfnt_off00010576.bin970aa58899b2d0a005a18b59dfec8407bdce97fa30fda5c7a5a8fb481731d488 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x10576 | 10164 bytes |
font_02_sfnt_off00011c2b.bin0ec08279e78c97d5c83b9dff9b041de2810fa1baba26fb26ce7f5235e2567e11 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x11C2B | 17384 bytes |
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