MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1204.002 Malicious Link
The PDF file was identified as malicious by ML classifiers and ClamAV, indicating a phishing or trojan threat. It contains numerous links, many pointing to compromised WordPress uploads or disposable hosting, suggesting a link farm designed to redirect users to malicious content. The document body is heavily obfuscated and appears to be generated by wkhtmltopdf, further obscuring its true intent.
Machine Learning
- Nyx PDF Classifier malicious score 0.9974
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 http://veterina-naslunci.cz/userfiles/file/58070060239.pdf In PDF document text
- http://logisticsnetworks.net/ckfinder/userfiles/files/61551730703.pdfIn PDF document text
- http://minhquoc.vn/ckfinder/userfiles/files/74578625047.pdfIn PDF document text
- http://szkolaprzybranowo.pl/ckfinder/userfiles/files/17955898896.pdfIn PDF document text
- http://yilip.net/userData/board/file/73815423099.pdfIn PDF document text
- http://rc-mst.com/mst/_upload/files/85852239253.pdfIn PDF document text
- https://pamukoglu.com/userfiles/file/2165432237.pdfIn PDF document text
- http://sirindhorn.net/upload/File/58432437625.pdfIn PDF document text
- http://wadsoda.com/UserFiles/File/mumoluwopanobaze.pdfIn PDF document text
- http://pilanatofishing.com/home/sandbox/domains/shelter.sandbox.tritek.hk/public_html/ckfinder/userfiles/files/zakejenonijipitipu.pdfIn PDF document text
- http://tuderprogettazione.it/userfiles/files/vetoxunexowej.pdfIn PDF document text
- https://ryokanclub.com/FileData/ckfinder/files/20210918_64113DA06FF1F10A.pdfIn PDF document text
- http://pn-tech.net/userData/board/file/35734321528.pdfIn PDF document text
- http://www.jindatunnel.com/up_files/file/fasikaro.pdfIn PDF document text
- http://dtyxbpzx.com/filespath/files/20210905164604.pdfIn PDF document text
- http://lirealestatelitigator.com/wp-content/plugins/super-forms/uploads/php/files/e8b75f32f9a3ad76de28433a80adb19f/7829823732.pdfIn PDF document text
- http://tecniagua.es/uploads/ckfinder/files/65919418157.pdfIn PDF document text
- http://recrute.fr/files/files/85004772827.pdfIn PDF document text
- https://ercrs.org/wp-content/plugins/super-forms/uploads/php/files/8f3csfbfvp62irfrb6k9clv8f9/48833315780.pdfIn PDF document text
- https://www.olympusnorge.no/wp-content/plugins/super-forms/uploads/php/files/1vp1ab4gis3n7fvolurpn92hco/mumirexaxiva.pdfIn PDF document text
- http://thebankcardservice.com/uploads/files/mesetud.pdfIn PDF document text
- http://dongbanja.com/userData/ebizro_board/file/jufinezogikujolijefijep.pdfIn PDF document text
- http://changrung.com/ckfinder/userfiles/files/97651866811.pdfIn PDF document text
- http://tetrafluoro.com/upload/files/tubodaxafufeke.pdfIn PDF document text
- https://feedproxy.google.com/~r/Uplcv/~3/YTWXjIUwRh0/uplcv?utm_term=collocation+book+for+ielts+pdfPDF link annotation
- 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_off0000d74d.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xD74D | 10876 bytes |
SHA-256: f27c09939bbb435834d600b6a4aab81a6bc9e78a5f1f60412ef5ecef8b28a89a |
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font_01_sfnt_off0000f05c.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xF05C | 17788 bytes |
SHA-256: 20f34075ee7b18fb8f2ff8116c489692cf33e148af92b37220fc3bf0dc84e8d7 |
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font_02_sfnt_off00011e57.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x11E57 | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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