MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1203 Exploitation for Client Execution
This PDF file was flagged by ML classifiers and ClamAV as malicious, indicating a phishing or malware distribution attempt. It functions as a link farm, containing numerous URLs pointing to compromised websites and potentially malicious content. The presence of external URI heuristics and link farm detections supports this attack pattern.
Machine Learning
- Nyx PDF Classifier malicious score 0.9975
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://crysiq.ru/uplcv?utm_term=no+internet+access+iphone+hotspot
- https://wecareu.net/ckfinder/userfiles/files/18913372046.pdf
- https://gites-les-bardots.com/userfiles/file/15655831182.pdf
- http://europeanprofservices.com/wp-content/plugins/formcraft/file-upload/server/content/files/1613f4e358d430---tenajurenufuguzowudiwiraz.pdf
- http://theonejsc.com/userfiles/file/bewovawonaxidipasowe.pdf
- http://www.maoles.com/wp-content/plugins/formcraft/file-upload/server/content/files/1614e78e05886b---26075341.pdf
- https://alternatifhirdavat.com/upload/ckfinder/files/67650758494.pdf
- https://cometsecurity.in/admin/userfiles/file/dijuralomomosuw.pdf
- https://www.liftechforklifts.com.au/application/third_party/ckfinder/userfiles/files/dopezovadagelofopadafavax.pdf
- https://www.arc-welding.co.uk/wp-content/plugins/super-forms/uploads/php/files/8caenfjostjnapnc9h3mjhk50j/32330879308.pdf
- http://www.hon-ro.hu/userfiles/files/vaxinefirimadumaviwoxi.pdf
- http://sztarmedia.hu/_user/file/bakexaziwonusedemodoz.pdf
- http://adirondackseafood.com/ckfinder/userfiles/files/34606918096.pdf
- http://seghers.kr/data/editor/file/995187228614fc787c4d07.pdf
- http://tugrabilgisayar.net/resimler/files/8719393292.pdf
- http://studionegrelli.it/userfiles/files/42229657960.pdf
- http://giovanniseneca.eu/userfiles/files/72326916745.pdf
- https://homeuu.biz/upload/ckeditor/pages/files/budufenufokufuzaw.pdf
- http://jinistudy.com/_UploadFile/Images/file/61790359266.pdf
- http://caerulumpharma.com/upload/files/kutadus.pdf
- https://bahia-group.com/ckfinder/userfiles/files/pifobomotuwasok.pdf
- https://sheenabusesandcoaches.com/userfiles/file/kikagi.pdf
- http://molenat-energies.fr/molenat.com/images/editor/file/55971731481.pdf
- http://tubietelbar.hu/uploadfile/bozaxukepa.pdf
- http://ascensionchina.com/userfiles/file/31662966052.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_off0000b570.bin10b879def92bd826fa919d71446f5f820faef29fa2671446a4d4296186e9bd10 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xB570 | 10404 bytes |
font_01_sfnt_off0000ccf0.bin9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xCCF0 | 16792 bytes |
font_02_sfnt_off0000e502.bin60e442d8fad92a6e3d3b696d01c7e28572456ff2132c4bedb83075dc97279e71 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xE502 | 17512 bytes |
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