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 uploads or disposable hosting, indicating a link farm designed for malicious redirection. The ML classifier and ClamAV detection strongly suggest malicious intent, likely phishing or malware delivery via these links.
Machine Learning
- Nyx PDF Classifier malicious score 0.9956
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://synerhu.ru/uplcv?utm_term=fortnite+most+popular+characters PDF link annotation
- https://shunnasato.com/11586351738.pdfIn PDF document text
- https://sporyolu.com/resimler/files/3380357627.pdfIn PDF document text
- https://husvagnsexpo.se/wp-content/plugins/formcraft/file-upload/server/content/files/161313e6738719---jemufawubamaja.pdfIn PDF document text
- http://bielwod.com/userfiles/file/52740082555.pdfIn PDF document text
- https://www.spoton.pet/wp-content/plugins/super-forms/uploads/php/files/gnhsbpors6l74rbi5o67idf6q8/8454343907.pdfIn PDF document text
- http://stroyvodservice.ru/upload/File/tifatijoju.pdfIn PDF document text
- https://kuepancong.com/contents/files/67120481295.pdfIn PDF document text
- http://kaufdeinauto.de/wp-content/plugins/formcraft/file-upload/server/content/files/1613273f70c1ff---68279608622.pdfIn PDF document text
- http://qianlong99.org/ckfinder/userfiles/files/wamodiriwuwafokoka.pdfIn PDF document text
- http://darangyi.com/userData/board/file/zufexodero.pdfIn PDF document text
- https://www.shamshabaddiocese.org/files/js/ckfinder/userfiles/files/58047605942.pdfIn PDF document text
- http://www.c-l-r-p.com/admin/ckfinder/userfiles/files/xoratazowisewepo.pdfIn PDF document text
- http://nurugelexport.com/ckfinder/userfiles/files/36675896959.pdfIn PDF document text
- http://vuason.vn/upload/files/95793984438.pdfIn PDF document text
- http://jinruily.com/UploadFile/file/20210907180044223.pdfIn PDF document text
- https://cr2tek.com/userfiles/Proj_Name/files/39093120142.pdfIn PDF document text
- https://dfa-finanz.de/wp-content/plugins/formcraft/file-upload/server/content/files/16136a3c7e64a5---vakalomaporuteraju.pdfIn PDF document text
- https://apra.pl/files/file/zusuwud.pdfIn PDF document text
- http://offerparts.com/upload/files/20622128864.pdfIn PDF document text
- http://shethof.ch/cgi-bin/dynamisch/file/20369120159.pdfIn PDF document text
- http://metamorfoza-krosno.pl/userfiles/file/mavubogavovem.pdfIn PDF document text
- http://hopkim.vn/upload/files/68146063886.pdfIn PDF document text
- http://files.ibiza-ferien.de/file/20949572968.pdfIn PDF document text
- http://www.w3.org/1999/02/22-rdf-syntax-ns#In PDF document text
- http://purl.org/dc/elements/1.1/In PDF document text
- http://ns.adobe.com/pdf/1.3/In PDF document text
- http://ns.adobe.com/xap/1.0/In PDF document text
- http://ns.adobe.com/xap/1.0/mm/In PDF document text
- http://ns.adobe.com/xap/1.0/rights/In PDF document text
- http://dejavu.sourceforge.netIn PDF document text
- http://dejavu.sourceforge.net/wiki/index.php/LicenseIn PDF document text
Extracted artifacts 3
Files carved from inside the sample during analysis.
| Filename | Kind | Source | Size |
|---|---|---|---|
font_00_sfnt_off0000afb9.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xAFB9 | 10716 bytes |
SHA-256: 46b2a0ea5ff06ed7306dedcf66e67cdefcb4b12a7f506238ba8858a48cc7d9eb |
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font_01_sfnt_off0000c81d.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xC81D | 15092 bytes |
SHA-256: 1c33d9fce37645c4495e2b72bc20b4d7df26ee21341c264dc983ce3643e91fc5 |
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font_02_sfnt_off0000edf6.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xEDF6 | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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