MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1203 Exploitation for Client Execution
The PDF contains numerous embedded URLs that function as a link farm, directing users to various domains. Heuristics indicate these links are on disposable hosting and potentially compromised CMS uploads, suggesting a phishing or malware distribution scheme. The ML classifier and ClamAV detection strongly indicate malicious intent, likely involving exploitation for client execution.
Machine Learning
- Nyx PDF Classifier malicious score 0.9991
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=gta+sa+gta+v+hud PDF link annotation
- http://maslatalaia.com/userfiles/file/87993610749.pdfIn PDF document text
- http://kustari.net/userfiles/file/jinip.pdfIn PDF document text
- https://juhaszautovill.hu/userfiles/file/47182076169.pdfIn PDF document text
- https://saleskerala.com/ckfinder/userfiles/files/14303210038.pdfIn PDF document text
- https://mosaicopeoplecorporation.com/ckfinder/userfiles/files/jixuwerege.pdfIn PDF document text
- https://www.wizzfizz.com.au/application/third_party/ckfinder/userfiles/files/33181199297.pdfIn PDF document text
- http://itena.si/uporabnik/file/wokabofozisukubar.pdfIn PDF document text
- https://afanasyev-design.ru/wp-content/plugins/super-forms/uploads/php/files/a160ebdc8ab17de7ac0305da839a7cd2/zejixajejab.pdfIn PDF document text
- http://gostium.com/wp-content/plugins/formcraft/file-upload/server/content/files/161426070c139e---kolizabijefasofude.pdfIn PDF document text
- http://dtyxbpzx.com/filespath/files/20211001084757.pdfIn PDF document text
- http://zehanbiopharma.com/upload/files/lowakeletomo.pdfIn PDF document text
- http://sarvodurys.com/userfiles/file/4648088857.pdfIn PDF document text
- http://php-lounge.de/userfiles/file/7367029343.pdfIn PDF document text
- http://peak-experience-japan.com/images/blog/file/seduledisaj.pdfIn PDF document text
- https://uaqbakery.com/wp-content/plugins/formcraft/file-upload/server/content/files/161381d59d7bbc---musefokuferimigotalasat.pdfIn PDF document text
- http://hoanggiaphatland.com/uploads/image/files/xofusijisusefufuwan.pdfIn PDF document text
- http://bienchidan.org/uploads/files/sobovajudilulewazevi.pdfIn PDF document text
- http://dreambeauty.kr/upload/fckeditor/file/74153188291.pdfIn PDF document text
- https://fceresources.com/ckfinder/userfiles/files/71347537645.pdfIn PDF document text
- https://ichapps.peaceofworld.com/ichapps/ckeditor-ckfinder-integration/uploads/files/29083973029.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_off0000b01c.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xB01C | 10136 bytes |
SHA-256: 7f85709ecf800ac350448756086816a90bbf14859c552cd0092b76fda743397c |
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font_01_sfnt_off0000c6bc.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xC6BC | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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font_02_sfnt_off0000dece.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xDECE | 18964 bytes |
SHA-256: ddd70c6dc6b899a8af20da8bb03fc2bde5384e8771d9c0edb3ceb88471edd501 |
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