MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1204.002 User Execution: Malicious File
The PDF file contains numerous links, many of which are hosted on disposable domains or compromised WordPress sites, suggesting a link farm designed to distribute malware. The ML classifier and ClamAV detection strongly indicate malicious intent, likely phishing or malware distribution. The presence of a link farm and the nature of the URLs point towards an attempt to trick users into downloading further malicious content.
Machine Learning
- Nyx PDF Classifier malicious score 0.9947
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://youkuvpn.com/upload/files/12562640095.pdf In PDF document text
- http://jorkurojus.com/userfiles/file/luvovukapokinatar.pdfIn PDF document text
- http://swotaweb.com/img/upload/file/boxotafuboxeki.pdfIn PDF document text
- https://booking-news.hkdnracing.com/webroot/editor-uploads/files/46655398067.pdfIn PDF document text
- https://ost-fogging.com/upload/files/41790174231.pdfIn PDF document text
- http://sugarfree-gelato.com/upload/file/fiwisalugifer.pdfIn PDF document text
- http://kartinatv.org/uploads/files/pesexugitezebuto.pdfIn PDF document text
- https://miltonmattox.com/userfiles/file/31298914385.pdfIn PDF document text
- http://www.alcera.ca/userfiles/file/71563747447.pdfIn PDF document text
- https://xn----7sbabak5acz7byau.xn--p1ai/wp-content/plugins/super-forms/uploads/php/files/93daf87875506848eb7f664f747d10e8/zilanukurunuki.pdfIn PDF document text
- https://stratasphere.online/userfiles/file/21664143917.pdfIn PDF document text
- http://kleinschaden.expert/userfiles/file/59452226264.pdfIn PDF document text
- https://mcsfood.com/images/file/35505836855.pdfIn PDF document text
- http://hkwwta.org/userfiles/86706770196.pdfIn PDF document text
- http://motocams.cz/ckfinder/userfiles/files/62072897742.pdfIn PDF document text
- http://retailcop.ca/files/8859599816.pdfIn PDF document text
- http://julianina.de/upload/file/86336332558.pdfIn PDF document text
- https://miraclechuppahs.com/userfiles/file/mavemigegowusinogufedolim.pdfIn PDF document text
- http://aroma-es.site/yamituki-n/uploads/files/67859109195.pdfIn PDF document text
- https://kolorubursztynu.kolorubursztynu.pl/web/uploads/files/fijilifore.pdfIn PDF document text
- http://www.kocay.com.tr/wp-content/plugins/formcraft/file-upload/server/content/files/16141c4293bbe6---9331767559.pdfIn PDF document text
- https://angkalaris.com/contents/files/vebigupomepuveta.pdfIn PDF document text
- https://stichtingech.org/ckfinder/userfiles/files/magurugajodun.pdfIn PDF document text
- http://www.meglobalinc.co.za/wp-content/plugins/formcraft/file-upload/server/content/files/16152688374c05---36653517506.pdfIn PDF document text
- https://feedproxy.google.com/~r/1eyvgo/aqOO/~3/zMnd8XtcwSM/uplcv?utm_term=skyvpn+premium+apk+downloadPDF link annotation
- https://unimedbelem.com.br/painel_template/assets/global/plugins/ckfinder/userfilesfiles/47785599163.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_off0000b1c8.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xB1C8 | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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font_01_sfnt_off0000c9df.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xC9DF | 10820 bytes |
SHA-256: 0ea6a25d97b9e0859ed1ffabe4ed53d2c7fd983118beeea63b7e208c63caa625 |
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font_02_sfnt_off0000e2d2.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xE2D2 | 17108 bytes |
SHA-256: 3202d3ba7c8dd8aedd5386a34649356c117f8a88229f1ac3fb5c37b78d973385 |
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