MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1059.007 JavaScript
The PDF file contains numerous links to compromised WordPress sites, suggesting it is part of a link farm designed to distribute malware or conduct phishing. The ML classifier and ClamAV detection strongly indicate malicious intent. The embedded URLs and the nature of the heuristics point towards a phishing or malware distribution campaign, likely initiated via spearphishing.
Machine Learning
- Nyx PDF Classifier malicious score 0.9998
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 https://irlanc.ru/uplcv?utm_term=how+to+sync+toshiba+smart+tv+remote PDF link annotation
- https://nowackleverkusen.de/wp-content/plugins/formcraft/file-upload/server/content/files/160ac7bd74f66f---4847762964.pdfIn PDF document text
- https://xn--80aaa1anac6cg.xn--p1ai/wp-content/plugins/super-forms/uploads/php/files/6265dcb16d8770b7b7f56d056da7e1d7/16185886937.pdfIn PDF document text
- https://europartner2.pl/uploads/tipori.pdfIn PDF document text
- http://sieckultury.pl/wp-content/plugins/super-forms/uploads/php/files/01628a00d7038e322ac1a26a94fd12c6/nokofilabusugex.pdfIn PDF document text
- http://pechati-piter.ru/userfiles/file/lumajud.pdfIn PDF document text
- https://balance-global.com/wp-content/plugins/super-forms/uploads/php/files/htj51q3j3ouq507i28q4a0s51j/30246400772.pdfIn PDF document text
- https://roofmed.ru/wp-content/plugins/formcraft/file-upload/server/content/files/160a05e70bfb1c---35698728270.pdfIn PDF document text
- https://www.oneirishrover.com/wp-content/plugins/super-forms/uploads/php/files/c31800369c708963aa8489290daeb765/gujufezeg.pdfIn PDF document text
- https://acornschoolcharleston.org/wp-content/plugins/super-forms/uploads/php/files/3fea0e81330e4820ac2bfd1d5c081ea4/larokimimub.pdfIn PDF document text
- https://ecoinkworld.com/wp-content/plugins/super-forms/uploads/php/files/85f08eb912acf75af13afaf8aeeca32d/35195226550.pdfIn PDF document text
- http://renovfab-menuiserie.com/userfiles/file/muwirasunewara.pdfIn PDF document text
- https://glass-haus.ru/wp-content/plugins/super-forms/uploads/php/files/90ff8f7d3574199247f5d724caabcd29/taxuwu.pdfIn PDF document text
- http://call.ae/wp-content/plugins/formcraft/file-upload/server/content/files/1608cddb13cd69---madatibopazerupupiwemavo.pdfIn PDF document text
- http://nuyewrecruitment.com/wp-content/plugins/super-forms/uploads/php/files/aad5bf68385027dc3bb71be1db3d6e4a/75987422374.pdfIn PDF document text
- https://nam.it/wp-content/plugins/formcraft/file-upload/server/content/files/160a8d11b7db16---59744412908.pdfIn PDF document text
- https://revapackers.com/wp-content/plugins/super-forms/uploads/php/files/04io18gukmbbuajbm51jv055g9/nadavux.pdfIn PDF document text
- http://english-island.pl/wp-content/plugins/super-forms/uploads/php/files/n7k6ea64h7ath8uc81f9iu8ic7/36866420711.pdfIn PDF document text
- http://www.ascendercorp.com/In PDF document text
- http://www.ascendercorp.com/typedesigners.htmlIn 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://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_off0000d62e.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xD62E | 5364 bytes |
SHA-256: be7eb071f3836801e5d8db056f5e29430a34070b86870747419cb420d5ff298e |
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font_01_sfnt_off0000e859.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xE859 | 10864 bytes |
SHA-256: 4fcf9958c4bab27ac582e8d456d0f17dc2f9843c1f6c47c4d296e8da22c70e43 |
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