MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1204.002 Malicious Link
This PDF file was flagged by multiple heuristics as malicious, including a high-confidence ML classifier and ClamAV detection. It contains numerous embedded URLs that point to compromised WordPress sites and other disposable hosting, suggesting it functions as a link farm for phishing or malware distribution. The document body is heavily obfuscated and unreadable, providing no further context on its specific lure.
Machine Learning
- Nyx PDF Classifier malicious score 0.9983
Heuristics 6
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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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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=binomial+theorem+pascal%27s+triangle PDF link annotation
- https://balajitutorial.com/admin/userfiles/file/19984810140.pdfIn PDF document text
- https://semangkabiji.com/contents/files/wapofujedemunifufoxerus.pdfIn PDF document text
- http://www.sg-callenberg.de/wp-content/plugins/formcraft/file-upload/server/content/files/16083d6aa6c4fb---masok.pdfIn PDF document text
- http://security-m.jp/tool/images/file/77795105548.pdfIn PDF document text
- http://standrewsparishhighschoolclassof1964.com/clients/70428/File/18109926708.pdfIn PDF document text
- http://www.korayozelguvenlik.com/wp-content/plugins/formcraft/file-upload/server/content/files/160be482948e66---sorirevagupisevajijana.pdfIn PDF document text
- http://www.skup.it/wp-content/plugins/formcraft/file-upload/server/content/files/1609845a4304dd---jigajusomoxegujevewubo.pdfIn PDF document text
- https://www.numberoneporthill.co.uk/wp-content/plugins/formcraft/file-upload/server/content/files/160f675053544e---38538693275.pdfIn PDF document text
- https://angkoronetour.com/userfiles/file/76108981925.pdfIn PDF document text
- https://www.okcfarmersmarket.com/wp-content/plugins/super-forms/uploads/php/files/8c34b4c40fa660bd0b172a6939a8eabf/vizuzifovototunaribamilim.pdfIn PDF document text
- https://law.com.sg/wp-content/plugins/super-forms/uploads/php/files/f17917d3aa5490a5b5ae22fcb44275ec/58670119389.pdfIn PDF document text
- http://amidoux-peintures.com/ckfinder/userfiles/files/8142241908.pdfIn PDF document text
- http://sendedianqi.com/upload_fck/file/2021-8-20/20210820044716945586.pdfIn PDF document text
- https://rdsdealers.com/ckfinder/userfiles/files/dujavitozadaduve.pdfIn PDF document text
- http://serendipityorlando.com/wp-content/plugins/formcraft/file-upload/server/content/files/1610467f0645bd---33851163807.pdfIn PDF document text
- http://kibbkw.com/uploads/file/82313446712.pdfIn PDF document text
- https://www.tzounakos-insurance.gr/ckfinder/userfiles/files/84788103148.pdfIn PDF document text
- http://harposwebdesign.nl/app/webroot/files/userfiles/files/xijifimunalida.pdfIn PDF document text
- http://iamsoldierfit.com/wp-content/plugins/formcraft/file-upload/server/content/files/1606cf63be454f---94104637380.pdfIn PDF document text
- http://lorofilmes.com/Uploads/ckfinder/userfiles/files/43505059105.pdfIn PDF document text
- https://qboardapp.com/wp-content/plugins/super-forms/uploads/php/files/7976f10083d428ccd08792b3806f53d0/kovozixebeboweti.pdfIn PDF document text
- http://digjamaica.com/app/webroot/files/dixijorawalixoguzinereg.pdfIn PDF document text
- https://www.bluegreenshouseboats.in/wp-content/plugins/formcraft/file-upload/server/content/files/16077d7a9686fa---lopukinosetesigaxo.pdfIn PDF document text
- https://www.cfo-search.com/wp-content/plugins/formcraft/file-upload/server/content/files/160c719d238522---61438421278.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_off0000db92.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xDB92 | 10908 bytes |
SHA-256: 68b48007619ea654f28aa8eb95326c8c4154788969b152d08027619ad0412baf |
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font_01_sfnt_off0000f4ac.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xF4AC | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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font_02_sfnt_off00010cbe.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x10CBE | 18248 bytes |
SHA-256: f8c9aca1fdc4e78c63d96425a0b96eb5147704a14e7317ecf2cebdbf9a6758c7 |
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