MALICIOUS
96
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
The PDF contains a large number of embedded URLs, many of which point to disposable hosting or compromised WordPress sites, indicating a link farm or redirection scheme. The ML classifier strongly flagged this PDF as malicious. While no scripts were explicitly extracted, the nature of the URLs suggests a potential for delivering malicious payloads or phishing attempts, aligning with spearphishing attachment tactics.
Machine Learning
- Nyx PDF Classifier malicious score 0.9917
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 https://chcial.ru/uplcv?utm_term=unblocked+games+72 PDF link annotation
- http://dichvutot99.com/webroot/img/files/rimidodosovamevo.pdfIn PDF document text
- http://bigcool.net/webroot/img/files/digozosemubarurifubu.pdfIn PDF document text
- http://plncse.hu/php_data/file/59173642992.pdfIn PDF document text
- https://www.lipfish.no/wp-content/plugins/formcraft/file-upload/server/content/files/1613d756baa1de---godewixuwobib.pdfIn PDF document text
- https://apra.pl/files/file/bujekakefatagoku.pdfIn PDF document text
- http://www.pirac.org/wp-content/plugins/super-forms/uploads/php/files/e2ac7f4f5d341bf73d41f0ce5ef2d5ce/fegeleberigud.pdfIn PDF document text
- http://inlikeflintlogistics.com/wp-content/plugins/formcraft/file-upload/server/content/files/1613bda67e0514---91934616249.pdfIn PDF document text
- http://dirpub.org/editor/ckfinder/userfiles/files/23569672402.pdfIn PDF document text
- https://luyenthitoeic.info/userfiles/file/takawajavimonagozexakawev.pdfIn PDF document text
- https://cleanenergy.mn/uploads/files/xulubevamivibatogagef.pdfIn PDF document text
- https://feldmann-spedition.de/pics/userfiles/file/1239378464.pdfIn PDF document text
- http://oppedisanorobertosrl.com/userfiles/files/18727088285.pdfIn PDF document text
- http://nutronicltd.com/userfiles/file/bukakemode.pdfIn PDF document text
- http://impactpluslearning.com/ckfinder/userfiles/files/72926158748.pdfIn PDF document text
- http://eaas-journal.org/survey/userfiles/files/5735645388.pdfIn PDF document text
- https://s-serviss.lv/userfiles/file/pusakavivemotaxizijenuj.pdfIn PDF document text
- http://sanfrancescovet.com/userfiles/files/kavutalenulax.pdfIn PDF document text
- https://libertyrealestate.in/ckfinder/userfiles/files/xugawokine.pdfIn PDF document text
- https://vildmarksjagt.dk/userfiles/file/24424419119.pdfIn PDF document text
- http://iucecb.com/files/file/pofug.pdfIn PDF document text
- https://proetcontra.hu/userfiles/file/35476178577.pdfIn PDF document text
- https://mwasafat.com/uploads/files/11024528073.pdfIn PDF document text
- https://ketex.com/trcgp/ckfinder/userfiles/files/47329451837.pdfIn PDF document text
- http://usmleworkout.com/files/file/75795258662.pdfIn PDF document text
- http://marcobernini.it/userfiles/files/26855557772.pdfIn PDF document text
- http://yasairamenbar.com/uploads/files/87486423745.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_off0000cc72.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xCC72 | 17468 bytes |
SHA-256: 5690f7790d9dd27b011f23ed68cf78f1de31a0928469320299c09d7e67bcb055 |
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font_01_sfnt_off0000f9ec.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xF9EC | 10832 bytes |
SHA-256: 344295080d304cc4d2646ef4ccef793fc52c78920fe1d2587fc74f0ae6b099c7 |
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font_02_sfnt_off000112d0.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x112D0 | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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