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's part of a link farm designed to redirect users to malicious content. The presence of a specific URL related to 'UEFI boot USB Ubuntu' indicates a targeted lure. ClamAV detection and ML classification strongly support its malicious nature, likely serving as a phishing or malware distribution vector.
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://infrive.ru/uplcv?utm_term=uefi+boot+usb+ubuntu PDF link annotation
- http://www.fliesen-brill.de/wp-content/plugins/formcraft/file-upload/server/content/files/160805b731230b---zadojorenonelosirikajatak.pdfIn PDF document text
- https://spencershaulageltd.co.uk/wp-content/plugins/super-forms/uploads/php/files/6ad8a11d6d67ded242f5560bd0b5f5fc/32167832049.pdfIn PDF document text
- https://www.guestquesttravelmedia.com/wp-content/plugins/super-forms/uploads/php/files/27fddm52dd3fl09sm95r0veeke/90785976043.pdfIn PDF document text
- http://deurwater.com/wp-content/plugins/formcraft/file-upload/server/content/files/1606e829d224bf---38651773923.pdfIn PDF document text
- https://www.landalastadservice.com/wp-content/plugins/formcraft/file-upload/server/content/files/1607a152ed82da---51830827122.pdfIn PDF document text
- https://www.shopveriamici.com/wp-content/plugins/super-forms/uploads/php/files/kjsqt2orlc03tk47jcntl55idu/46055627566.pdfIn PDF document text
- https://nutstudio.it/userfiles/file/11584362413.pdfIn PDF document text
- https://www.cukoyem.com.tr/wp-content/plugins/super-forms/uploads/php/files/3eok1qfl4ne16eg0rbiidgdtc1/xodubu.pdfIn PDF document text
- http://auxerretv.com/content/public/file/75209826367.pdfIn PDF document text
- https://www.guestquesttravelmedia.com/wp-content/plugins/super-forms/uploads/php/files/6jv5pp3qb5nmajlektc2qct3ca/42021532611.pdfIn PDF document text
- http://apcmagon.com/userfiles/59652303998.pdfIn PDF document text
- http://canyonoaksmtg.com/~duckdi5/canyonoaksmtg.com/content/file/gowitosidibawejojit.pdfIn PDF document text
- https://cavalier-hundezucht.ch/userfiles/file/penejujojesowi.pdfIn PDF document text
- http://willtorock.com/wp-content/plugins/formcraft/file-upload/server/content/files/160b5d69dd5f21---vizuvurateverazejoxuzes.pdfIn PDF document text
- https://tuabogadoangel.com/wp-content/plugins/super-forms/uploads/php/files/d3e74a6eae4d1baa2d6f2fe0a0ecb7dd/lelavejanoxakun.pdfIn PDF document text
- http://aimic.com/userfiles/file/falabok.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_off0000ef62.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xEF62 | 4552 bytes |
SHA-256: 7ae563f13b76543505643720de948fa7d2b0d028b0c817ea5c8bc3d955b13e91 |
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font_01_sfnt_off0000feff.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xFEFF | 11828 bytes |
SHA-256: 39c527dc4a2eeec9e7d67f901a2f5d00ba70812399cb3bf7502076d54d8c0480 |
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