MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1203 Exploitation for Client Execution
The PDF contains numerous embedded URLs, many of which point to compromised or disposable hosting. Heuristics indicate this is a link farm, likely intended to lure users to malicious sites. ClamAV detection and ML classification confirm its malicious nature, suggesting it's a phishing or malware distribution lure.
Machine Learning
- Nyx PDF Classifier malicious score 0.9981
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://teplorium.su/userfiles/file/85943319688.pdf In PDF document text
- http://3sdent.com/upload/files/lizulisub.pdfIn PDF document text
- http://meijialx.com/ckfinder/userfiles/files/difafanuliz.pdfIn PDF document text
- https://apatity.verlauf-ekb.ru/admin/ckfinder/userfiles/files/zagofedokolisejowixuri.pdfIn PDF document text
- http://sanitaerprofi.ch/fckeditor/editor/images/file/xavexijotimupujuveret.pdfIn PDF document text
- http://mayinmaunhat.com/upload/files/siliwofanivu.pdfIn PDF document text
- http://ylpcl.com/ckfinder/userfiles/files/71261847754.pdfIn PDF document text
- http://abcbyspu.com/ckfinder/images_store/files/juruj.pdfIn PDF document text
- http://irodaszer.lukinserv.hu/file/5243695475.pdfIn PDF document text
- https://economiadecomunion.net/ckfinder/userfiles/files/47584597029.pdfIn PDF document text
- http://kientrucphatloc.com/upload/files/kuwewoj.pdfIn PDF document text
- http://aeskulap24h.com/wp-content/plugins/formcraft/file-upload/server/content/files/16130c2afec9f1---zikivenono.pdfIn PDF document text
- http://abwalabamaave.com/uploads/files/69508404511.pdfIn PDF document text
- http://buyyoutubecomments.com/ci/userfiles/files/vudaguwiwaxibek.pdfIn PDF document text
- https://landtop.com/filespath/files/20210908230930.pdfIn PDF document text
- http://farmina.ru/uploads/files/gabezofoxejif.pdfIn PDF document text
- http://joy05.com/_UploadFile/Images/file/52179487328.pdfIn PDF document text
- https://www.bouwenaaneensterkwerkgeversmerk.nl/wp-content/plugins/formcraft/file-upload/server/content/files/16136a8c221fe7---bisixo.pdfIn PDF document text
- https://ahreco.com/uploads/news_file/ganazuwogifuwazixepuguza.pdfIn PDF document text
- http://hoangnamjsc.com/upload/files/kabotariz.pdfIn PDF document text
- https://www.funes.gob.ar/ckfinder/userfiles/files/fegome.pdfIn PDF document text
- https://spazmedia.com/wp-content/plugins/formcraft/file-upload/server/content/files/1612ff76759cc5---75979562724.pdfIn PDF document text
- https://feedproxy.google.com/~r/Uplcv/~3/BkSY9tpko7c/uplcv?utm_term=super+vpn+premium+apk+2021PDF 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_off0000d2a5.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xD2A5 | 17668 bytes |
SHA-256: 6947a662871f9f95349f89d40f1d25c1eabb8d9d942d3c99bb83b340c14581a7 |
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font_01_sfnt_off000100be.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x100BE | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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font_02_sfnt_off000118d5.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x118D5 | 10608 bytes |
SHA-256: b48bcea32440f36bd22cde9c869437200f70aced741c5af4e9cab1fd65719183 |
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