MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1203 Exploitation for Client Execution
The file was detected as malicious by ML classifiers and ClamAV, indicating a high likelihood of malicious intent. Heuristics identified it as a link farm pointing to compromised CMS uploads and disposable hosting, suggesting a phishing or SEO poisoning campaign. The embedded URLs, while some are marked benign, are part of a larger pattern of redirecting users to potentially harmful sites.
Machine Learning
- Nyx PDF Classifier malicious score 0.9973
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 http://esrafisek.com/images_upload/files/xafokovev.pdf In PDF document text
- https://astoraccessories.com/uploads/ckfinder/files/gepakosavo.pdfIn PDF document text
- http://onishi-kyosendo.jp/archive/46046577513.pdfIn PDF document text
- http://elturo.ru/img/upload/files/vamedekomitudavuzonaj.pdfIn PDF document text
- http://skncn.com/u/files/wovabamanakoxotujerul.pdfIn PDF document text
- http://ne-moloko.ee/wp-content/plugins/super-forms/uploads/php/files/da4f318d24393771b0d6bc6f1b9ec112/kojibevulidar.pdfIn PDF document text
- http://maschimaurizio.it/userfiles/files/bevosaduriliwetamilifize.pdfIn PDF document text
- http://uekekb.ru/!upload/files/wivufatezuvekimum.pdfIn PDF document text
- http://lokalizacja-gps.pl/userfiles/file/gofomizobolaridata.pdfIn PDF document text
- http://flixgolf.com/ckeditor/ckfinder/userfiles/files/21107160320.pdfIn PDF document text
- http://vpecargo.com/userfiles/file/15200176483.pdfIn PDF document text
- http://snookerfootball.eu/wp-content/plugins/formcraft/file-upload/server/content/files/16130d61a2722c---tegede.pdfIn PDF document text
- http://francescasciortino.it/userfiles/files/14476054165.pdfIn PDF document text
- https://sportyou.fr/ckfinder/userfiles/files/97933475135.pdfIn PDF document text
- https://bd-sokolovska.eu/userfiles/file/fatetolazoxafu.pdfIn PDF document text
- http://lyzjkgm.com/d/files/26490287744.pdfIn PDF document text
- https://www.frontiermyanmar.com/sites/all/libraries/ckfinder/userfiles/files/bezetijufidifinemizase.pdfIn PDF document text
- http://dglytbt.com/upfolder/e/files/20210918225343.pdfIn PDF document text
- http://lnianemarzenie.pl/userfiles/file/73657009227.pdfIn PDF document text
- https://sherwoodchamber.org/ckfinder/userfiles/files/40782884618.pdfIn PDF document text
- https://n-vv.dk/userfiles/file/jiwefituzibazotesasa.pdfIn PDF document text
- https://eclipsetheaters.com/wp-content/plugins/formcraft/file-upload/server/content/files/161360e763eeae---49301690840.pdfIn PDF document text
- http://cgt-fo-csc.fr/wp-content/plugins/formcraft/file-upload/server/content/files/1614175df38089---xetakopizopulemasajigife.pdfIn PDF document text
- http://apsencollege.org/test/fckeditor/file/wofozusos.pdfIn PDF document text
- http://rajasthanmetals.com/userfiles/file/87787977160.pdfIn PDF document text
- https://feedproxy.google.com/~r/Uplcv/~3/3vuEKuznOb8/uplcv?utm_term=gta+5+200mb+downloadPDF 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_off0000f58e.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xF58E | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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font_01_sfnt_off00010da5.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x10DA5 | 10556 bytes |
SHA-256: 11a8a3e7030898a85453888b135e6a64d4494ec34ac057afe7298b872669daaa |
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font_02_sfnt_off000125d3.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x125D3 | 17296 bytes |
SHA-256: c5fadcf171b5aa70b0fd41d78112ac82b3cb5df86fbcab04cedb411e04c7392d |
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