MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
The PDF file was identified as malicious by ML classifiers and ClamAV, indicating a high likelihood of malicious intent. Heuristics reveal it functions as a link farm, with numerous URLs pointing to compromised WordPress sites and other domains, likely serving as a distribution point for phishing or malware. The presence of 'utm_term' parameters in some URLs suggests an attempt to track user engagement with potentially malicious links.
Machine Learning
- Nyx PDF Classifier malicious score 0.9971
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://medvor.ru/uplcv?utm_term=street+fighter+x+tekken+para+android+apk+download+free
- http://constructionone.com.br/wp-content/plugins/formcraft/file-upload/server/content/files/1607b69a59bdd6---zolelimamugalabex.pdf
- http://veronicanealhome.com/wp-content/plugins/formcraft/file-upload/server/content/files/2/160a39d758452b---jikebiwapusomefeme.pdf
- https://5a.ro/ckfinder/userfiles/files/balibe.pdf
- https://iphonerepairservice.nl/app/webroot/files/userfiles/files/susut.pdf
- http://files.ibiza-ferien.de/file/81730993679.pdf
- http://bamt.be/wp-content/plugins/formcraft/file-upload/server/content/files/160984488d97c1---jepibikopinu.pdf
- https://vyrukrc.lt/userfiles/file/subejikolenukan.pdf
- https://rugsinc.in/UserFiles/files/65314085071.pdf
- http://sgpeo.pl/users//file/51751227414.pdf
- http://www.elitagida.com.tr/wp-content/plugins/super-forms/uploads/php/files/6buauqe656go74umnnjbrusa66/19644259029.pdf
- http://dodici12.ru/wp-content/plugins/super-forms/uploads/php/files/k784ea8jdcdljij29c34m7q6t2/nevesarid.pdf
- http://alexlunacoach.com/img/editor/file/41890135409.pdf
- https://sweetestspaparty.com/wp-content/plugins/formcraft/file-upload/server/content/files/160b217bed4113---moponemuwononefowazefo.pdf
- https://yingzhaoliuart.com/upload/file/1278198488.pdf
- http://erkerlaender.de/wp-content/plugins/formcraft/file-upload/server/content/files/1606d9fa2d37f7---60374300360.pdf
- http://blog.crowdly.com/wp-content/plugins/formcraft/file-upload/server/content/files/1607d71bb7ed7a---73470443980.pdf
- http://www.greddy.com/admin/common/ckfinder/userfiles/File/korezololumututejikibemo.pdf
- https://readxyz.com/wp-content/plugins/super-forms/uploads/php/files/348519c0737c5f7ecbc6375988b3b5df/vakugu.pdf
- http://dossalas.com/wp-content/plugins/super-forms/uploads/php/files/b6e0a26d93fbbbda9c3bf0723845169c/musurawagune.pdf
- http://suncreekpuppies.com/clients/8/88/88daaab1104cc9784d9cd8b59d189b35/File/97879520822.pdf
- http://rotarylaspalmas.org/documentos/file/jifasamelisedofag.pdf
- https://bettenbaehren.de/wp-content/plugins/formcraft/file-upload/server/content/files/160a33a91a080b---52545642840.pdf
- http://mas.vacations/wp-content/plugins/formcraft/file-upload/server/content/files/1609d5092205c9---wegiv.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 4
Files carved from inside the sample during analysis.
| Filename | Kind | Source | Size |
|---|---|---|---|
font_00_sfnt_off0001166b.binb71124d2591e52ea2c4db13982a096c804cfa1dce29d6e04cbf7497aece263c3 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x1166B | 10964 bytes |
font_01_sfnt_off00012fa9.bin9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x12FA9 | 16792 bytes |
font_02_sfnt_off000147b6.bin45dc0a9135433b86ed10d521022d823bd1c819dbde1d987328810f1cdfa3ed43 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x147B6 | 2784 bytes |
font_03_sfnt_off0001537c.bin96d25ea7d41a65f62896c0ef83106aa2d14e02a8bee069696cc194ad60d65be7 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x1537C | 17972 bytes |
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