MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1204.002 Malicious Link
The PDF contains a large number of embedded URLs, many of which point to compromised websites or disposable hosting, indicating a link farm designed to lure users to potentially malicious content. The ML classifier and ClamAV detection strongly suggest malicious intent, likely phishing or malware distribution via these links.
Machine Learning
- Nyx PDF Classifier malicious score 0.9986
Heuristics 6
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ClamAV: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0 critical CLAMAV_DETECTIONClamAV detected this file as malware: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0
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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://thucphamchucnangmy.vn/uploads/files/37464637403.pdf In PDF document text
- http://ville-dammarie.com/ckfinder/userfiles/files/49912607760.pdfIn PDF document text
- http://www.santabriganti.org/admin/ckfinder/userfiles/files/visujoxazuxujonubek.pdfIn PDF document text
- http://mcenterdk.ru/fck_editor_files/files/40847494934.pdfIn PDF document text
- http://pokrowce-ochronne.pl/Upload/file/lilalexikufaruwugudekog.pdfIn PDF document text
- https://amartzon.store/wp-content/plugins/super-forms/uploads/php/files/f4e3261bc8954e83fda29d1ffd713bba/49137578963.pdfIn PDF document text
- http://xn--q20b13r9leepaeb.net/upload/file/202109030351346130.pdfIn PDF document text
- https://phucatgarment.com.vn/ckfinder/userfiles/files/goxebonaderojagifow.pdfIn PDF document text
- http://villahetzwartepaard.nl/survey/userfiles/files/63521830598.pdfIn PDF document text
- http://labsshop.com/d/files/52870990709.pdfIn PDF document text
- http://angel-conference.org/upload_fck/file/2021-9-24/20210924130316820474.pdfIn PDF document text
- https://desense.eu/uploads/wysiwyg/files/lutokujosanikiw.pdfIn PDF document text
- https://pacificengineering.co/imagenes_cont/sitio/documentos/26761634074.pdfIn PDF document text
- http://luijkzonwering.nl/image/file/42630774450.pdfIn PDF document text
- http://luluscafeonline.com/uploads/files/16397434533.pdfIn PDF document text
- http://lawcab.ru/wp-content/plugins/formcraft/file-upload/server/content/files/1614efa946604a---faxozav.pdfIn PDF document text
- https://unitedcardsolutions.com/wp-content/plugins/formcraft/file-upload/server/content/files/161445de905e0d---30219687572.pdfIn PDF document text
- http://eraldocomo.it/userfiles/files/53746015099.pdfIn PDF document text
- https://jamisonfurnace.ca/userfiles/files/50402650881.pdfIn PDF document text
- http://odessawa.com/userfiles/file/8385918723.pdfIn PDF document text
- http://turnyras.lt/Files/file/37141680035.pdfIn PDF document text
- https://feedproxy.google.com/~r/skout/mBVl/~3/BvfzZFkJO3s/uplcv?utm_term=i+need+help+with+math+homeworkPDF 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_off0000afb5.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xAFB5 | 15564 bytes |
SHA-256: 5f96c9f6bf417a419b780be0595f97f5ae3286c93250c5e17d6e3a0c0f5e3693 |
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font_01_sfnt_off0000d706.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xD706 | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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font_02_sfnt_off0000ef1d.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xEF1D | 10616 bytes |
SHA-256: 1871bab4e90e1b33521de95d8a22401834e8f5bc77d1deeb229621560bf309a7 |
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