MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1203 Exploitation for Client Execution
The PDF contains a large number of embedded URLs, many of which point to compromised websites or disposable hosting, indicating a link farm designed to redirect users. The ClamAV detection and ML classifier strongly suggest malicious intent, likely phishing or malware distribution. The heuristic PDF_SEO_DISPOSABLE_LINK_FARM and PDF_COMPROMISED_CMS_UPLOAD_LINK_FARM further support the analysis of the file's purpose as a malicious link aggregator.
Machine Learning
- Nyx PDF Classifier malicious score 0.9956
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 http://infas.cz/images/wiswig/file/63152252924.pdf In PDF document text
- http://www.eflox.net/wp-content/plugins/formcraft/file-upload/server/content/files/1613a2a2fba218---32570740292.pdfIn PDF document text
- http://om-ar.com/userfiles/file/vowovidowelufagutudomak.pdfIn PDF document text
- http://amoy-art.com/Upload/file/mibenivu.pdfIn PDF document text
- https://dorfadvertising.com/ckfinder/userfiles/files/fukozerupaxixepolizenefol.pdfIn PDF document text
- http://bursaceyizgelinlik.com/images_upload/files/mapafutewikipoz.pdfIn PDF document text
- https://sporyolu.com/resimler/files/jowobabixovexenasudiboxu.pdfIn PDF document text
- https://familienbilstrup.dk/ckfinder/userfiles/files/revow.pdfIn PDF document text
- https://oriolefashion.com/ckfinder/userfiles/files/1321981387.pdfIn PDF document text
- https://pyhm.ca/wp-content/plugins/super-forms/uploads/php/files/nu3homdcsihsiq067n8kddba39/nuxapajefoji.pdfIn PDF document text
- https://lashmakerpro.it/wp-content/plugins/super-forms/uploads/php/files/6t929v71s6cmfpb9jeag0d2ft2/texukagij.pdfIn PDF document text
- http://sweet-sugar.de/images/uploadedimages/file/75299943791.pdfIn PDF document text
- http://xenangheli.vn/public/files/vavofewubejogesa.pdfIn PDF document text
- http://ituor.ir/basefile/chartermeinfo/files/91706075065.pdfIn PDF document text
- http://dorp.pl/userfiles/files/33739264989.pdfIn PDF document text
- http://aligokdemir.com/resimler/files/14861351378.pdfIn PDF document text
- https://techson-cctv.com/upload/file/13243388954.pdfIn PDF document text
- http://bluelakehomestay.com/uploads/image/files/64449357566.pdfIn PDF document text
- http://idcla.net/upload/files/79900469865.pdfIn PDF document text
- https://letajicikoberce.cz/userfiles/file/19764118509.pdfIn PDF document text
- http://ellenia3.eu/userfiles/files/89466306861.pdfIn PDF document text
- http://bbfrontedelmare.com/userfiles/files/nigupo.pdfIn PDF document text
- https://feedproxy.google.com/~r/skout/mBVl/~3/S30rS-6n6vg/uplcv?utm_term=shadow+fight+2+citPDF 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_off0000f4a0.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xF4A0 | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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font_01_sfnt_off00010cb2.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x10CB2 | 21900 bytes |
SHA-256: 6680e67cfaa397482bffdb3c8c706bc649024a6c098b8ff3bdfffa6bf5c5e5f0 |
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font_02_sfnt_off00014654.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x14654 | 10488 bytes |
SHA-256: 66fde4a72c2c11de6858a904de648c703cd8157d39160c68e65c4d130e8f634f |
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