MALICIOUS
176
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
The PDF contains numerous embedded URLs that form a link farm, a common tactic for phishing or SEO manipulation. The ML classifier and ClamAV detection strongly indicate malicious intent. While no scripts were explicitly extracted, the presence of PDF_URI and PDF_SEO_DISPOSABLE_LINK_FARM heuristics suggests the document is designed to redirect users to potentially harmful external sites.
Machine Learning
- Nyx PDF Classifier malicious score 0.9974
Heuristics 7
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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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QR-code redirect lure medium SE_QR_LUREDocument instructs the user to scan a QR code with a phone — consistent with QR phishing, but also common in legitimate documents
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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://catamma.ru/uplcv?utm_term=video+star+free+text+qr+codes
- http://cheumst.com/upload/fckeditor/file/70282697992.pdf
- https://xn--80aaa1anac6cg.xn--p1ai/wp-content/plugins/super-forms/uploads/php/files/cd4dc9ca22f16d6390b2743a7a383499/suvewoku.pdf
- https://quangcaowebsite.xemlaco.com/uploads/files/54985579851.pdf
- https://webvitamin.vn/app/webroot/uploads/files/dajulomegowuremeno.pdf
- https://lentes123.com/aym_image/files/78704128453.pdf
- http://www.onekaddy.com/wp-content/plugins/formcraft/file-upload/server/content/files/16136f1aac938b---bovob.pdf
- http://energo-winstal.pl/userfiles/file/rawapide.pdf
- https://dalycity.com/wysiwygfiles/file/vapigubiwulapajis.pdf
- http://salwex.hu/file/35612931495.pdf
- https://ghadir-eng.com/userfiles/files/26031078885.pdf
- http://sutinlawkrabi.com/ckfinder/userfiles/files/15261070392.pdf
- https://habibitoursegypt.com/ckfinder/userfiles/files/4006487309.pdf
- http://ecoaga.com/documentos/file/vunumonafojubawowubugilo.pdf
- http://woonhuislift.info/wp-content/plugins/formcraft/file-upload/server/content/files/1612eebd3719a0---wisunajixeli.pdf
- https://www.pension-chevaux-haras-gabereau.fr/ckfinder/userfiles/files/92871325178.pdf
- http://alt-1c.ru/userfiles/file/setudazelofi.pdf
- http://frutapac.com/ckfinder/userfiles/files/pajekivutifaleliwafeb.pdf
- http://silver.jo/ckfinder/blanc/files/49409407927.pdf
- http://whatcanidoforyou.eu/publish/file/namazezem.pdf
- http://ballmillfactory.com/d/files/16787911440.pdf
- http://cnpair.com/userfiles/file/kozasizediwupapu.pdf
- http://halvani.com/wp-content/plugins/formcraft/file-upload/server/content/files/16134ea045581e---10726837669.pdf
- http://wintec-samu.hu/uploads/files/pudivuliwinujenona.pdf
- http://cuanhuadanang.vn/uploads/image/files/wumorudibixi.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_off0000e38d.bin9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xE38D | 16792 bytes |
font_01_sfnt_off0000fb9f.binaa4f271ee98d7f82b7f0b86e62ccd3212f84d445a09d07b504b9ea39efed6d30 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xFB9F | 17744 bytes |
font_02_sfnt_off000129eb.bind74e01db65506d8a0046e57f96f0329730b2a5f56c31c183f1d28ac543eb0d01 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x129EB | 10536 bytes |
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