MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1203 Exploitation for Client Execution
The PDF file contains a large number of embedded URLs, many of which point to compromised websites or disposable hosting, indicating a link farm. The ClamAV detection and ML classifier strongly suggest malicious intent, likely phishing or SEO abuse. The presence of multiple PDF-specific heuristics related to URI and link farms supports this assessment.
Machine Learning
- Nyx PDF Classifier malicious score 0.9976
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 http://dailyxedayhang.com/userfiles/files/terobetuxafevijuj.pdf In PDF document text
- http://yongqingtech.com/d/files/xikusuli.pdfIn PDF document text
- http://radissonhoteltraining.com/userfiles/file/xabesu.pdfIn PDF document text
- http://conservationenergy.com/wp-content/plugins/formcraft/file-upload/server/content/files/1613e67c9a34af---8437840323.pdfIn PDF document text
- https://hafa-verein.de/wp-content/plugins/super-forms/uploads/php/files/f588fa70f087dfa00bbceebcdfa3bc9d/nasabokuzodabixe.pdfIn PDF document text
- http://ciaomamma.hu/editor_up/kuzoxuzozefi.pdfIn PDF document text
- http://clinicaveterinariagussago.com/userfiles/files/76169976367.pdfIn PDF document text
- http://impactpluslearning.com/ckfinder/userfiles/files/kopevajulisapi.pdfIn PDF document text
- https://italvaping.com/file/domubozosoxefinoguga.pdfIn PDF document text
- https://www.lang-mayer.de/wp-content/plugins/formcraft/file-upload/server/content/files/1613bbde2116fe---kemaduju.pdfIn PDF document text
- http://sofia-es.tokyo/yamituki-n/uploads/files/xapovebuz.pdfIn PDF document text
- http://homeopathyhk.com/files/31261453145.pdfIn PDF document text
- https://www.benkorner.nl/admin/library/ckfinder/userfiles/files/4271006966.pdfIn PDF document text
- http://thessalonikiflights.com/files/files/25451350818.pdfIn PDF document text
- http://crabandclaw.com/uploads/files/81626483341.pdfIn PDF document text
- https://ahirealty.in/admin/userfiles/files/sixon.pdfIn PDF document text
- http://tuttotop.com/userfiles/files/21387892070.pdfIn PDF document text
- http://kenzoum.org/home/integrity/public_html/ckfinder/userfiles/files/90073168464.pdfIn PDF document text
- http://gibisch.info/files/files/zezasanakoj.pdfIn PDF document text
- https://ketex.com/trcgp/ckfinder/userfiles/files/kozok.pdfIn PDF document text
- https://www.sexualaufklaerung-schule.ch/ck/ckfinder/userfiles/files/lurip.pdfIn PDF document text
- http://tsnpharma.com/upload/files/50601972391.pdfIn PDF document text
- http://www.77ice.com/upload/files/62230181877.pdfIn PDF document text
- https://feedproxy.google.com/~r/Uplcv/~3/DOqCt-cVA4I/uplcv?utm_term=pdf+spell+bookPDF 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_off0000e899.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xE899 | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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font_01_sfnt_off000100ab.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x100AB | 19188 bytes |
SHA-256: b51b05d93ac9cfdd5dac3881c0512ed1711fadf0cc816418c3425f48b6c6a3e1 |
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font_02_sfnt_off00013365.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x13365 | 10168 bytes |
SHA-256: eac92c0ab96722814d031e91e2129ca8555542fa06f85218d44124dad463fac7 |
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