MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1204.002 Malicious Link
The PDF was flagged by ML classifiers and ClamAV as malicious. It contains a significant number of external links, many pointing to compromised CMS upload directories, indicating a link farm designed to distribute malicious content or phish users. The document body is heavily obfuscated and contains metadata suggesting it was generated by wkhtmltopdf.
Machine Learning
- Nyx PDF Classifier malicious score 0.9998
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 https://www.advids.io/wp-content/plugins/formcraft/file-upload/server/content/files/160a0642a83897---52547784104.pdf In PDF document text
- https://bayardplaza.co.uk/wp-content/plugins/super-forms/uploads/php/files/vurfbnng3qv4o64kaq0ka9un71/56010414730.pdfIn PDF document text
- http://www.nandomoraes.com.br/wp-content/plugins/formcraft/file-upload/server/content/files/160c00b0e070a3---wadafaxotoromumub.pdfIn PDF document text
- http://www.bash.cl/media/file/82261802282.pdfIn PDF document text
- https://accuratesearch.com/userfiles/file/26828569230.pdfIn PDF document text
- https://www.hdontheroadnapoli.it/wp-content/plugins/formcraft/file-upload/server/content/files/160c31697dbaba---bulawi.pdfIn PDF document text
- http://www.movingintofreedom.com/wp-content/plugins/formcraft/file-upload/server/content/files/16081329eb1ea1---99102289557.pdfIn PDF document text
- http://www.whirlpool-beachcomber.at/wp-content/plugins/formcraft/file-upload/server/content/files/1609764d40d574---gewukuzivitobanu.pdfIn PDF document text
- http://xperion.hu/wp-content/plugins/super-forms/uploads/php/files/012ff2bd0570b8c63bc63c021e8b91e4/26012080644.pdfIn PDF document text
- http://lbhs1965.com/clients/6/6b/6bdd8f708684a1f547efbf97e1630fe5/File/43795792811.pdfIn PDF document text
- http://agendaalzheimer.org/files/galeria/files/fovabitazajana.pdfIn PDF document text
- http://www.altrus.pl/wp-content/plugins/formcraft/file-upload/server/content/files/16081c234c999a---getomise.pdfIn PDF document text
- https://yuktiedu.com/wp-content/plugins/super-forms/uploads/php/files/c42d5b956f7750109fa2c9063a8530e9/49691320763.pdfIn PDF document text
- http://stevis.cz/files/file/rifawarivad.pdfIn PDF document text
- http://www.ascendercorp.com/In PDF document text
- http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
- https://feedproxy.google.com/~r/skout/mBVl/~3/YTWXjIUwRh0/uplcv?utm_term=bangla+gaadi+jhumke+kangna+mp3+songPDF 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://scripts.sil.org/OFLIn PDF document text
Extracted artifacts 2
Files carved from inside the sample during analysis.
| Filename | Kind | Source | Size |
|---|---|---|---|
font_00_sfnt_off0000c3b0.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xC3B0 | 5628 bytes |
SHA-256: daefb8959f0e4dcdbb450db6da11e7b35bd026e9275a43ef78d8376e9e459c65 |
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font_01_sfnt_off0000d6b5.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xD6B5 | 11276 bytes |
SHA-256: 5754ef3816098924bcb5d37c1caf8f1dd5d90ef579f6f890dc61492c2572455b |
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