MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1203 Exploitation for Client Execution
The PDF was flagged by ClamAV as 'Pdf.Phishing.Trojan' and ML classifiers indicated a high probability of maliciousness. Heuristics identified it as a link farm pointing to numerous PDF files hosted on compromised or disposable domains, suggesting a phishing or SEO poisoning campaign. No scripts were extracted, but the overall structure and URL patterns are indicative of malicious intent.
Machine Learning
- Nyx PDF Classifier malicious score 0.9971
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://ahreco.com/uploads/news_file/nofudonaxuwusulusipud.pdf In PDF document text
- http://myjobcareer.net/userfiles/file/2021090618012973499.pdfIn PDF document text
- http://www.sunaryem.com.tr/wp-content/plugins/super-forms/uploads/php/files/0ubvhqindhr3e9l05s76n646t0/nemojatajikamopimeroma.pdfIn PDF document text
- http://akekaluck.com/ckfinder/userfiles/files/5078909471.pdfIn PDF document text
- https://valeaflorilor.ro/img/uploads/file/malipekoxos.pdfIn PDF document text
- https://spirit-legend-enterprises.com/webroot/editor-uploads/files/sumitig.pdfIn PDF document text
- https://www.beadvised.co.uk/wp-content/plugins/super-forms/uploads/php/files/18b858665be964e1eca54ea9abe01005/fefitusa.pdfIn PDF document text
- http://www.madiran-cruduparadis.fr/ckfinder/userfiles/files/jalodaputexuvil.pdfIn PDF document text
- https://ladangmimpi2.com/contents/files/43856413569.pdfIn PDF document text
- http://hosungtour.net/FileData/ckfinder/files/20210905_5BE9C88B00300D90.pdfIn PDF document text
- http://chiaranannini.com/userfiles/files/jelaso.pdfIn PDF document text
- http://shangrilayunnan.com/ckfinder/userfiles/files/voneguburofo.pdfIn PDF document text
- http://dsagco.com/Upload/file/10509829283.pdfIn PDF document text
- http://hkxhjfc.ltd/uploads/files/20210917231417.pdfIn PDF document text
- http://consol.hu/images/uploadedimages/file/fawoke.pdfIn PDF document text
- https://diedacorporation.net/freesiafiles/file/xamiwifixoxunel.pdfIn PDF document text
- http://www.hcibatiment.fr/wp-content/plugins/formcraft/file-upload/server/content/files/1613f970c9cea4---banagipegiropoze.pdfIn PDF document text
- http://studiocommercialedelpiano.it/userfiles/files/4423377222.pdfIn PDF document text
- https://mehreganimaging.com/images/upload/files/12626762193.pdfIn PDF document text
- http://esejsc.com/upload/files/rimexurimef.pdfIn PDF document text
- https://magicdiscoradio.com/userfiles/file/kowiwapupoxojavonukidulo.pdfIn PDF document text
- http://omegapizza.net/uploads/files/padubixanumomakisav.pdfIn PDF document text
- https://shastriratanchatterjee.com/ckfinder/userfiles/files/kanufe.pdfIn PDF document text
- https://feedproxy.google.com/~r/skout/mBVl/~3/LPIa9PGmDLg/uplcv?utm_term=formulacion+de+hipotesis+pdfPDF 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_off0000fa82.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xFA82 | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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font_01_sfnt_off00011299.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x11299 | 10960 bytes |
SHA-256: 82b41ebdc6c9a76b02c6db016a4e0092cd2723533632c839552766f7914d436b |
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font_02_sfnt_off00012bc7.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x12BC7 | 17984 bytes |
SHA-256: c7049de13bd92b02e8c29ca3bfc801907fcd682fdb9e2c1ee86864255ca3e1d9 |
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