MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1203 Exploitation for Client Execution
The PDF was flagged by ML classifiers and ClamAV as malicious, specifically as a phishing trojan. It contains numerous embedded URLs, many of which point to compromised CMS uploads or disposable hosting, suggesting a link farm or redirection scheme. The presence of external URI heuristics and the 'PDF_SEO_DISPOSABLE_LINK_FARM' rule further support this. While no scripts were extracted, the overall structure and heuristic firings indicate a malicious intent to lure users to external sites.
Machine Learning
- Nyx PDF Classifier malicious score 0.9973
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://arendic.cl/files/sajadovufufowubejevaxised.pdf In PDF document text
- https://paymentor.nl/uploads/file/valumefepavidagalo.pdfIn PDF document text
- http://moneymaker-gold.de/files/79718807022.pdfIn PDF document text
- https://onecre.com/images/content/files/62613721430.pdfIn PDF document text
- https://bi-kiesabbau.de/cmsimple/images/file/ragamixivepeziwutexu.pdfIn PDF document text
- https://loffoxfitness.mvwebsolution.com/userfiles/files/wajokapipab.pdfIn PDF document text
- http://mopi.eu/ckfinder/userfiles/files/43242757916.pdfIn PDF document text
- http://cesarrodarte.com/userfiles/file/favisuvum.pdfIn PDF document text
- http://tsrmvolontari.it/userfiles/files/ruvitofipipojuvukaduroto.pdfIn PDF document text
- http://www.psstrecno.sk/wp-content/plugins/formcraft/file-upload/server/content/files/1614b118bafa11---puwegos.pdfIn PDF document text
- http://basar-hemeringen.de/ablage/userfiles/files/komifigosoluwebato.pdfIn PDF document text
- http://kingbikeonline.com/images/upload/File/29725284994.pdfIn PDF document text
- http://indecomavo.pl/userimg/inc/69388139790.pdfIn PDF document text
- http://www.rsvpcatering-ar.com/files/imagesfile/6526821115.pdfIn PDF document text
- https://komunalno.vrgorac.hr/files/woribupanavewopinasuse.pdfIn PDF document text
- http://fueandhair.com/userfiles/files/59256105959.pdfIn PDF document text
- https://biharlokmanch.org/userfiles/file/fewomajixifoviwo.pdfIn PDF document text
- http://ms-beauty.com/ckfinder/userfiles/files/79196046193.pdfIn PDF document text
- http://sushiosushi.com/uploads/files/35688913661.pdfIn PDF document text
- http://casinodanmarkjackpot.dk/userfiles/file/limunujimupupadetopebu.pdfIn PDF document text
- https://vanrun-it.nl/userfiles/files/novetixijono.pdfIn PDF document text
- http://prodesign31.ru/wp-content/plugins/formcraft/file-upload/server/content/files/1614664437b5d4---rinifigojibasosodos.pdfIn PDF document text
- https://aokman-drive.com/d/files/41268394366.pdfIn PDF document text
- http://secondhandgraphics.com/usrfiles/file/67474107285.pdfIn PDF document text
- https://joyfool.art/wp-content/plugins/super-forms/uploads/php/files/5d847df06e98a4fa2e65f649247c2397/surorosenababaruvanum.pdfIn PDF document text
- https://feedproxy.google.com/~r/Uplcv/~3/ngfLrbzwjls/uplcv?utm_term=lords+mobile+hack+scriptPDF link annotation
- 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_off0000fb5e.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xFB5E | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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font_01_sfnt_off00011375.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x11375 | 10864 bytes |
SHA-256: db1991ed4ccc3676cf277ca6a42d96c3f20eff6f98c5d7b1e8a475821705ff64 |
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font_02_sfnt_off00012c4e.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x12C4E | 17820 bytes |
SHA-256: 7cdaea4447b248423c2f4d3a04efce07784e3702c7125fd9b45feeede0749abd |
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