MALICIOUS
96
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1203 Exploitation for Client Execution
The PDF contains a significant number of embedded URLs, many of which point to compromised CMS upload directories or disposable hosting. The ML classifier strongly indicates maliciousness. The presence of a link farm suggests an attempt to lure users to external sites, likely for phishing or to download further malicious content.
Machine Learning
- Nyx PDF Classifier malicious score 0.9977
Heuristics 5
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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://lunaleo.pl/userfiles/file/20470627552.pdf In PDF document text
- https://aldea.work/wp-content/plugins/super-forms/uploads/php/files/f87d8a5c79dc6c92e0005b7f03badafc/natazuwokofulananupasid.pdfIn PDF document text
- http://phannhan.vn/files/usersfiles/files/2087933320.pdfIn PDF document text
- https://halobysciton.com/wp-content/plugins/formcraft/file-upload/server/content/files/16138d5c8b6c93---14218176012.pdfIn PDF document text
- http://unipell.com.br/wp-content/plugins/formcraft/file-upload/server/content/files/16131ad8fa08b6---74251573237.pdfIn PDF document text
- https://ibericadearmerias.com/file/tixofofa.pdfIn PDF document text
- https://www.champagne-auge-dascier.com/ckfinder/userfiles/files/lofoz.pdfIn PDF document text
- https://clubkdo.fr/img/pics/files/rijodadetegozuwaf.pdfIn PDF document text
- http://www.atsamuihaus.com/image/upload/File/75760024422.pdfIn PDF document text
- https://tunhuaduytan.com/upload/userfiles/files/50980070889.pdfIn PDF document text
- http://goldenpeak.it/userfiles/files/73393944889.pdfIn PDF document text
- https://abogadosaccidentealicante.centralcms.cloud/galeria/files/pefosalazogopik.pdfIn PDF document text
- https://transturist.ba/ckeditor/ckfinder/files/files/32510839341.pdfIn PDF document text
- https://wonkingchina.com/d/files/lexirulivafevarufesoxomon.pdfIn PDF document text
- http://vidol.eu/userfiles/file/vinumoborikor.pdfIn PDF document text
- https://www.bouwenaaneensterkwerkgeversmerk.nl/wp-content/plugins/formcraft/file-upload/server/content/files/161406be3d8c4e---19490183674.pdfIn PDF document text
- https://leicht-spb.ru/wp-content/plugins/super-forms/uploads/php/files/a2e837ab88415ded4ba53597e5962450/37567740127.pdfIn PDF document text
- http://kleni.cz/userfiles/file/25286189163.pdfIn PDF document text
- http://closehorses.com/userfiles/file/8471802541.pdfIn PDF document text
- http://sovaimm.it/userfiles/files/fitelujexaxapaxupavo.pdfIn PDF document text
- https://www.tifdip.com/wp-content/plugins/formcraft/file-upload/server/content/files/161523c11c8bf8---xevugegijolusikegekisex.pdfIn PDF document text
- http://electriccityusa.com/images/fck_uploads/file/84163760290.pdfIn PDF document text
- https://feedproxy.google.com/~r/1eyvgo/aqOO/~3/S30rS-6n6vg/uplcv?utm_term=iron+man+jarvis+live+wallpaperPDF 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_off0000ae7b.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xAE7B | 16176 bytes |
SHA-256: 50a000926f83781a7221aea2feb70d83c12081c8e3bef8c965d4c175d048476c |
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font_01_sfnt_off0000d773.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xD773 | 10548 bytes |
SHA-256: de78f06594da75faa66a7ae46a9cfbfd9d26159c973a24c84dd85b7da0c3b37d |
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font_02_sfnt_off0000ef72.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xEF72 | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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