MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1204.002 Malicious Link
The PDF file was flagged by ML classifiers and ClamAV as malicious, specifically as a phishing trojan. It contains numerous embedded URLs, many pointing to compromised WordPress sites or disposable hosting, suggesting a link farm designed to redirect users to malicious content. The presence of multiple external URIs and link farm heuristics indicates a strong intent to direct users to external, potentially harmful, resources.
Machine Learning
- Nyx PDF Classifier malicious score 0.9860
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://krisoc.ru/uplcv?utm_term=best+free+android+plant+identification+app PDF link annotation
- https://visualarchive.bg/files/nuzesuredene.pdfIn PDF document text
- https://hizlipin.com/calisma2/files/uploads/golopulezej.pdfIn PDF document text
- http://runnersavezzano.it/public/userfiles/file/luzakujewibizu.pdfIn PDF document text
- http://www.risingstars.com.tr/wp-content/plugins/formcraft/file-upload/server/content/files/16140a3fa169cc---27394928182.pdfIn PDF document text
- http://cedresarquitectura.com/wp-content/plugins/formcraft/file-upload/server/content/files/161411c3357560---gexaniwatekizisabid.pdfIn PDF document text
- http://veterina-hrib.cz/user-uploads/files/kopaxifu.pdfIn PDF document text
- http://newworldss.com/uploads/file/54213368049.pdfIn PDF document text
- https://www.energetisch-therapeut-estie.nl/wp-content/plugins/formcraft/file-upload/server/content/files/16140cc6c098a4---robav.pdfIn PDF document text
- https://christianbelieversmatrimony.com/web/christiansbelieversmatrimony/photos/ckeditor/files/6219058151.pdfIn PDF document text
- http://degrossier.nl/uploads/file/83411829099.pdfIn PDF document text
- http://leaguengn.com/userfiles/file///95949873198.pdfIn PDF document text
- http://dezis.ru/uploads/files/84498000036.pdfIn PDF document text
- https://niboparis.com/upload/fckeditor/files/kolujivegoxobena.pdfIn PDF document text
- http://art-wonders.com/ckeditor/ckfinder/core/connector/php/uploads/files/41151087778.pdfIn PDF document text
- https://pabausa.org/wp-content/plugins/formcraft/file-upload/server/content/files/1613a9bde1a61b---38309272787.pdfIn PDF document text
- http://cageart.ca/wp-content/plugins/formcraft/file-upload/server/content/files/161410429c424e---muniremefi.pdfIn PDF document text
- https://familienbilstrup.dk/userfiles/file/nelemumilorufusibu.pdfIn PDF document text
- http://nigerseedindia.com/uploads/93165173641.pdfIn PDF document text
- https://www.cdscabling.co.uk/wp-content/plugins/formcraft/file-upload/server/content/files/1613ec89fc4107---navegajoxas.pdfIn PDF document text
- https://wentworthre.com/wp-content/plugins/super-forms/uploads/php/files/827f30d5038876ffcdcdf7afa8cdb08d/77194341999.pdfIn PDF document text
- http://sterenstein.ru/userfiles/file/katodamizimozid.pdfIn PDF document text
- https://infravoip.com/wp-content/plugins/super-forms/uploads/php/files/b8b6036641395d8183f946141f86356c/tumanesezemazajerugu.pdfIn PDF document text
- http://ideviceplus.be/app/webroot/files/userfiles/files/57834593261.pdfIn PDF document text
- https://norservis.cz/files/files/19388489321.pdfIn PDF document text
- http://conhantaoankhanh.com/webroot/img/files/guvituv.pdfIn PDF document text
- https://drnanemilk.com/tctt/sites/aaa/file/rodazinofifeni.pdfIn PDF document text
- 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_off0000e308.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xE308 | 17964 bytes |
SHA-256: 5cb1706974d72290db2d6fa15b102787fbd456a51d8f126c96c3e00700f024a2 |
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font_01_sfnt_off00011185.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x11185 | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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font_02_sfnt_off0001299c.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x1299C | 10668 bytes |
SHA-256: 9c243f634add9afd2377225296bdb1dec46c79cbc0838ce7b23a5f2f9d611195 |
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