MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1203 Exploitation for Client Execution
The PDF file was flagged by ML classifiers and ClamAV as malicious, specifically identified as a phishing trojan. Heuristics indicate it functions as a link farm, with many URLs pointing to compromised WordPress sites. The document body is heavily obfuscated, preventing a clear understanding of its specific lure, but the overall structure suggests an attempt to redirect users to potentially malicious content.
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 https://archism.ru/uplcv?utm_term=plants+and+meanings PDF link annotation
- http://compie.ru/wp-content/plugins/formcraft/file-upload/server/content/files/1608f29dde883f---zunatazagunujefidakuge.pdfIn PDF document text
- http://snsi.jp/image/news_file/3141505668.pdfIn PDF document text
- http://sushikyototogo.com/uploads/files/21416314249.pdfIn PDF document text
- http://moto-bike.pl/userfiles/file/80109628189.pdfIn PDF document text
- https://www.taxikladis.gr/wp-content/plugins/formcraft/file-upload/server/content/files/1608be2ecc8b24---xopefominedej.pdfIn PDF document text
- http://www.urbanwaterways.info/files/dogadaxifikefemiriw.pdfIn PDF document text
- https://atraba-holding.com/userfiles/file/wonekezedaduvabi.pdfIn PDF document text
- https://tcremich.lu/files/files/82869715999.pdfIn PDF document text
- https://traveltokiev.com/wp-content/plugins/super-forms/uploads/php/files/pirik65haqr263tiiursch5pt2/gavirirutuket.pdfIn PDF document text
- http://aaz.sk/editor_uploads/files/derorax.pdfIn PDF document text
- http://fygl.net/uploads/file/080927491685.pdfIn PDF document text
- http://milcontabil.com.br/wp-content/plugins/super-forms/uploads/php/files/pjlr97tbk9hdri76iltpv2nfa4/53446609936.pdfIn PDF document text
- http://hnkingdee.cn/Files/file/2021630134757.pdfIn PDF document text
- https://totalyoumovement.com/wp-content/plugins/formcraft/file-upload/server/content/files/160794a7e96ad0---42787193255.pdfIn PDF document text
- https://www.havanasalsa-dance-tours.com/wp-content/plugins/super-forms/uploads/php/files/a1eec004509d34c301af3eb83836cde5/95744452906.pdfIn PDF document text
- http://www.finanzanlagen-honorarberatung.de/wp-content/plugins/formcraft/file-upload/server/content/files/16071fd8cd4a4d---wekatuxopaladuzibojemun.pdfIn PDF document text
- https://greenvalleykerala.com/ckfinder/userfiles/files/59365991213.pdfIn PDF document text
- http://www.fullertherapy.com/wp-content/plugins/formcraft/file-upload/server/content/files/16091940672f8e---42916820613.pdfIn PDF document text
- https://hmjrgoldhockey.org/wp-content/plugins/super-forms/uploads/php/files/6d45f82745642bcc63c643f4a28fa567/napewuduzex.pdfIn PDF document text
- https://sidexsideaudio.com/wp-content/plugins/formcraft/file-upload/server/content/files/16094451bb7775---nikitun.pdfIn PDF document text
- https://eclipsetheaters.com/wp-content/plugins/formcraft/file-upload/server/content/files/160b2d7d86cfb5---mozusewiti.pdfIn PDF document text
- http://trainternational.in/wp-content/plugins/formcraft/file-upload/server/content/files/160b4779631c18---60326277490.pdfIn PDF document text
- https://thefencedocumentary.com/adminfiles/file/60799248091.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_off0000ebce.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xEBCE | 10372 bytes |
SHA-256: c4ecc0d9566cd4078bf64f1efc935e27383e0b673fe74d24104e2077f56ab7c6 |
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font_01_sfnt_off000102f9.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x102F9 | 16656 bytes |
SHA-256: 19ed0a6804fc34e9b9f19280c02a3b19b645b89f4395d227b63e18e014398461 |
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font_02_sfnt_off00012e45.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x12E45 | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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