MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1055.012 Process Injection
The PDF document was flagged by ML classifiers and ClamAV as malicious, specifically as a phishing trojan. It contains numerous links, many hosted on compromised CMS uploads and disposable domains, forming a link farm. These links likely serve to redirect users to malicious sites or phishing lures, aligning with a phishing attack pattern.
Machine Learning
- Nyx PDF Classifier malicious score 0.9916
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://spbi.cz/res/file/toterenijopep.pdf In PDF document text
- http://hakanhurdacilik.com/userfiles/file/nugexolitulapetekib.pdfIn PDF document text
- http://novelinternationalschool.com/ckfinder/userfiles/files/turirujejonuj.pdfIn PDF document text
- http://thanhlamresort.vn/wp-content/plugins/formcraft/file-upload/server/content/files/1615ab2f7dabf3---636272477.pdfIn PDF document text
- https://jensbrode.de/files/file/93910876279.pdfIn PDF document text
- https://daulte.ch/ckfinder/userfiles/files/77160537539.pdfIn PDF document text
- http://attilacenter.org/userfiles/file/jederevixuduz.pdfIn PDF document text
- http://signexpowholesale.com/project-new/christianbook/upload_images/file/79377621333.pdfIn PDF document text
- http://www.laterveer-biesenbeek.nl/ckfinder/userfiles/files/54734647503.pdfIn PDF document text
- http://gazosilikatnn.ru/uploads/files/4301683779.pdfIn PDF document text
- https://lexconsulting.ro/webroot/files/media/jewerevorixupe.pdfIn PDF document text
- http://dongtienlamnghiep.com/upload/file/93377251035.pdfIn PDF document text
- http://ephtour.com/FileData/ckfinder/files/20210905_DF5CE1EA83565006.pdfIn PDF document text
- http://olgapolyakova.de/files/files/waxamaduzerekapowewiter.pdfIn PDF document text
- http://jingkangchem.com/upload/files/bosumepegi.pdfIn PDF document text
- http://zezoalza.com/ckupload/files/vewikudusodadusukesisiruk.pdfIn PDF document text
- http://nickelsgrafikdesign.de/ckfinder/userfiles/files/35167702858.pdfIn PDF document text
- http://vagtteam.com/userfiles/Files/mineg.pdfIn PDF document text
- http://magiepourenfants.com/images/mediamanager/file/14482677740.pdfIn PDF document text
- https://tbsva.org/Upload/files/20211002145828.pdfIn PDF document text
- https://radiosmile.hu/upload/file/tejepe.pdfIn PDF document text
- http://pnc21.com/files/fckeditor/file/1379644041614256388a487.pdfIn PDF document text
- http://makaeximworld.com/wp-content/plugins/formcraft/file-upload/server/content/files/161557f8316643---51309752266.pdfIn PDF document text
- https://www.indee-r.fr/wp-content/plugins/super-forms/uploads/php/files/692b8441ae81f2ca7a7921e0673daf1e/nulotowudopuzazeli.pdfIn PDF document text
- https://tennis-samara.ru/img/file/56960164331.pdfIn PDF document text
- http://xenangheli.vn/public/files/4576905264.pdfIn PDF document text
- https://feedproxy.google.com/~r/Uplcv/~3/BvfzZFkJO3s/uplcv?utm_term=electrolytes+and+dehydrationPDF 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_off0000b748.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xB748 | 10564 bytes |
SHA-256: f90a9284e0275fca8f3e3429db4a8201eef79461869c1437cd8644d3c651ed1c |
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font_01_sfnt_off0000cf56.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xCF56 | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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font_02_sfnt_off0000e768.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xE768 | 14612 bytes |
SHA-256: 0f16db0525134d69e483d458110dd90fb78ff962bce4b854865b8cf8a6ab0da6 |
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