MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1204.002 Malicious Link
The PDF file was flagged by multiple heuristics, including ML classification and ClamAV, indicating malicious content. It contains a link farm pointing to various PDF files hosted on potentially compromised or disposable domains, suggesting a phishing or malware distribution attempt. The presence of a link farm and the nature of the URLs indicate an attempt to trick users into downloading further malicious content.
Machine Learning
- Nyx PDF Classifier malicious score 0.9977
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://thuaphatlaihoanghuy.com/uploads/files/59404428415.pdf In PDF document text
- http://panyuchen.com/ckfinder/userfiles/site_eachfun_com/files/segodokubufatov.pdfIn PDF document text
- http://umbabox.com/userfiles/file/16252261737.pdfIn PDF document text
- http://predit.ru/admin/ckfinder/userfiles/files/bivutuzajubudefupikepogaf.pdfIn PDF document text
- http://ombs.ru/uploads/files/17141717237.pdfIn PDF document text
- http://stellarp.com/userfiles/files/94965974495.pdfIn PDF document text
- https://jlgardner.org/home/jlg/public_html/ckfinder/userfiles/files/puzenizazunodelomev.pdfIn PDF document text
- http://seatraderhk.com/userfiles/3200322680.pdfIn PDF document text
- http://ty6600.com/userfiles/file/samizeridupupawukokap.pdfIn PDF document text
- http://www.1000ena.com/wp-content/plugins/formcraft/file-upload/server/content/files/1612f7062ba43a---55612480372.pdfIn PDF document text
- https://havadisname.com/upload/ckfinder/files/26616060134.pdfIn PDF document text
- http://www.ncstarim.com.tr/wp-content/plugins/super-forms/uploads/php/files/0441f63vtlrt0veaimcs63gn65/2105561608.pdfIn PDF document text
- http://montpellier-business-plan.eu/mbp/upload/images/images/upload/ckfinder/putadixukozodixekej.pdfIn PDF document text
- http://homeopathyhongkong.org/files/45629523793.pdfIn PDF document text
- http://apsons.eu/files/file/77909499462.pdfIn PDF document text
- https://ladulceseguros.ar/noticias/fckeditor/file/jozenevuwupol.pdfIn PDF document text
- https://superpackeg.com/userfiles/file/daxenasem.pdfIn PDF document text
- https://thegioibaobicarton.com/Images_upload/files/23097884374.pdfIn PDF document text
- http://sergeisurzhin.ru/ckfinder/userfiles/files/darexovubujufumu.pdfIn PDF document text
- http://majortaylorride.info/images/uploaded/file/46129257041.pdfIn PDF document text
- https://ever.dacola.com/upload/files/44236264902.pdfIn PDF document text
- http://przyrodnik-kujawy.eu/userfiles/file/9647054395.pdfIn PDF document text
- https://brusroom.com/wp-content/plugins/super-forms/uploads/php/files/a03781daaa138be53573699afe0a7e4d/10925368642.pdfIn PDF document text
- https://feedproxy.google.com/~r/skout/mBVl/~3/YTWXjIUwRh0/uplcv?utm_term=play+store+play+store+apk+downloadPDF 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_off0000d771.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xD771 | 17992 bytes |
SHA-256: f6e1ff4d16e1bea4f9b0afbf906d96f738e37280d0949477c4f8d39ca627a3a6 |
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font_01_sfnt_off00010570.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x10570 | 10588 bytes |
SHA-256: 58bbfa05ab3403f961a0444f9371d873c2700e639377fc520859a187a40e43e5 |
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font_02_sfnt_off00011dea.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x11DEA | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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