MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
This PDF file was flagged as malicious by ClamAV and an ML classifier. It contains numerous embedded URLs, many of which are part of a link farm hosted on disposable domains or compromised WordPress sites, suggesting a phishing or malware distribution attempt. No scripts were extracted, but the presence of external links indicates a likely intent to redirect the user to malicious content.
Machine Learning
- Nyx PDF Classifier malicious score 0.9963
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 https://queure.ru/uplcv?utm_term=statistical+treatment+of+data+for+quantitative+research+pdf PDF link annotation
- http://zangerlelaw.com/customer/3/d/9/3d947ad6ce2568d98b832ccf5548371bFile/divofufetexovo.pdfIn PDF document text
- http://usaoxin.com/userfiles/2021-9/file/9467669512.pdfIn PDF document text
- http://hongphuc.vn/userfiles/file/24072252535.pdfIn PDF document text
- http://backupcenters.com/userfiles/file/zomaxefi.pdfIn PDF document text
- http://ardechetendancebrut.fr/userfiles/ardechetendancebrut.fr/file/47647146561.pdfIn PDF document text
- https://masterpieces-mallorca.com/wp-content/plugins/super-forms/uploads/php/files/022b785b312fbb2018e3c2622279bb70/80854462468.pdfIn PDF document text
- http://www.urbanwaterways.info/files/nosufagubol.pdfIn PDF document text
- http://nzozkrowodrza.pl/uploads/editor/file/65641141950.pdfIn PDF document text
- https://mayxaydungthienlong.com/uploads/files/files/wuwawaneb.pdfIn PDF document text
- http://zjleiou.com/images/upload/File/gixotizasejajusoja.pdfIn PDF document text
- http://ncdesign.it/userfiles/files/gejexobavazenavebedipawu.pdfIn PDF document text
- http://peter-scherer.de/userfiles/file/28181624555.pdfIn PDF document text
- http://www.smpnuenen.nl/images/files/tilikuropitibodiluvu.pdfIn PDF document text
- https://hijaustabilo.com/contents/files/wufiwajafuketetibefuxi.pdfIn PDF document text
- http://antonio-pelella.eu/userfiles/files/77885874704.pdfIn PDF document text
- http://sintellect.ru/Repository/file/baxejevupozopobuvudiz.pdfIn PDF document text
- http://nd-58.ru/wp-content/plugins/super-forms/uploads/php/files/15d8969ec04f41e40c7987c27d2d3f44/95026265804.pdfIn PDF document text
- https://cambodiaangkorhomestay.com/userfiles/file/lutog.pdfIn PDF document text
- http://www.fsnn.se/wp-content/plugins/formcraft/file-upload/server/content/files/16136f2ce45ded---nawelapopadejowofazos.pdfIn PDF document text
- https://brakos.it/file/kenalosuximezup.pdfIn PDF document text
- http://vtracauto.com/wp-content/plugins/formcraft/file-upload/server/content/files/1612f8a04e452c---34978902342.pdfIn PDF document text
- http://imcborivali.org/userfiles/file/nuvedajufabag.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_off0000c659.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xC659 | 11272 bytes |
SHA-256: 348c874619a9007601abf9b8fb40250a3b4176e93eff0b7cc27ff8593303370b |
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font_01_sfnt_off0000e05d.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xE05D | 17616 bytes |
SHA-256: 674d2084993e253418d36e91f105ec997e5acff7b65e75d373d4011ca99b1e27 |
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font_02_sfnt_off00010db7.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x10DB7 | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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