MALICIOUS
164
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
The PDF contains embedded JavaScript and numerous external URIs, many of which point to compromised CMS upload storage or are part of a link farm on disposable hosting. The ML classifier and ClamAV detection strongly indicate malicious intent, likely to redirect users to phishing or malware distribution sites. The embedded JavaScript is a common method for initiating malicious actions within PDFs.
Machine Learning
- Nyx PDF Classifier malicious score 0.9948
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 https://nomylo.ru/uplcv?utm_term=weather+software+free+download+for+windows+7
- https://diversified-nj.com/wp-content/plugins/super-forms/uploads/php/files/fd701ce39d2e3e5ad6abd0e3ea5fa8e4/vowirotonifedusuwodub.pdf
- https://mamproducciones.es/wp-content/plugins/formcraft/file-upload/server/content/files/16098499b203cc---24995222747.pdf
- http://fitviewer.biz/files/file/muvasekenuzorinojez.pdf
- http://www.luminicaambiental.com/wp-content/plugins/formcraft/file-upload/server/content/files/160a6db0db5a59---wubejaki.pdf
- https://udachi.co.th/wp-content/plugins/super-forms/uploads/php/files/qofvlsj0k9ja4mk69s4eu2cbs2/35921857920.pdf
- http://docando.es/js/ckfinder/userfiles/files/sakabixiwerotedatizazux.pdf
- http://championsview.net/userimages/11652147060.pdf
- https://coil.hk/upload/files/sebadizopudijonu.pdf
- https://www.d-table.com/wp-content/plugins/super-forms/uploads/php/files/fdb00dd5407dbbbde093f2ee3a8f7ec1/4716226406.pdf
- http://www.recetasyconsejos.com/wp-content/plugins/formcraft/file-upload/server/content/files/160d185359fc14---gogadubasilorevu.pdf
- http://opakowania-loga.pl/zdjecia/fotki/file/xujagagezapazi.pdf
- http://kondicionery-ivanteevka.ru/upload_picture/file/nugikiselagag.pdf
- https://www.rydalmereprestige.com.au/wp-content/plugins/super-forms/uploads/php/files/rjgdsrg72m6an58qts2boi79ub/latopu.pdf
- https://www.darrellstuckey.com/wp-content/plugins/formcraft/file-upload/server/content/files/1609c53b977aaa---sixefafutemi.pdf
- https://www.hospedeagora.com.br/wp-content/plugins/super-forms/uploads/php/files/6n4g91k6ndfnct6umcnsbos1j2/leboganurusuluwisiju.pdf
- https://www.toptalentusa.com/wp-content/plugins/formcraft/file-upload/server/content/files/160a889e6bd608---22703091030.pdf
- https://mavismanagement.com/wp-content/plugins/formcraft/file-upload/server/content/files/1607d1b24c50a3---28716589149.pdf
- http://dzbnf.com/upload/file///32001691060.pdf
- https://bhiringisamsankalimandir.org/ckfinder/userfiles/files/dapibokoxojix.pdf
- https://www.expoagrogto.com/wp-content/plugins/super-forms/uploads/php/files/ii1l6lmec2r533bsrhr1tu44m3/lajoxegutaxu.pdf
- https://pabausa.org/wp-content/plugins/formcraft/file-upload/server/content/files/160925ae415d83---duvewajujet.pdf
- http://www.rosabrockenhaus.ch/ckfinder/userfiles/files/sibuwetavipajufameganer.pdf
- http://scheiden-maassluis.nl/uploads//file/getunuxuxekixumuteki.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_off0000f5bc.bin9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xF5BC | 16792 bytes |
font_01_sfnt_off00010dce.bin62b82d4be6fe740665191deda620cad7fd421b447fe26f8b2fd07d55d1566dc1 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x10DCE | 16432 bytes |
font_02_sfnt_off00013851.binc4051e2d775070fcac8f7a9828437d793f302089cae3772d8dc82d597cf748b8 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x13851 | 10580 bytes |
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