MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
This PDF file was flagged by multiple heuristics, including a critical ClamAV detection and an ML classifier, indicating malicious intent. It contains numerous external URLs, many pointing to compromised WordPress sites or disposable hosting, suggesting a link farm designed to redirect users. The presence of embedded URLs and the overall structure strongly suggest this PDF acts as a lure to external malicious sites, likely for phishing or malware delivery.
Machine Learning
- Nyx PDF Classifier malicious score 0.9985
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://irlanc.ru/uplcv?utm_term=the+corpse+of+anna+fritz+yify PDF link annotation
- http://sarahscupcakery.com/wp-content/plugins/formcraft/file-upload/server/content/files/160846fff6718b---2799587663.pdfIn PDF document text
- http://ebsenglish.net/_UploadFile/Images/file/wubit.pdfIn PDF document text
- https://specialbrands.gr/wp-content/plugins/super-forms/uploads/php/files/930bf7b4ac16a5c4127f84b068450175/86433541379.pdfIn PDF document text
- http://rajskiewakacje.pl/userfiles/file/77463793042.pdfIn PDF document text
- http://am-assets.com/aom/magnolia/userfiles/file/monugotowage.pdfIn PDF document text
- http://cuahuyhoang.com/media/ftp/file/34692715373.pdfIn PDF document text
- http://www.akutrans.com/wp-content/plugins/formcraft/file-upload/server/content/files/1607a9934838c8---137141395.pdfIn PDF document text
- http://mikllc.mn/uploads/files/ripolukoramimabirulegexu.pdfIn PDF document text
- https://tocgia247.com/wp-content/plugins/super-forms/uploads/php/files/tmnbocp0v3go2gqpj988gg1cbl/59433110146.pdfIn PDF document text
- http://hankyunget.net/userData/board/file/69037798374.pdfIn PDF document text
- http://potentialdesign.cn/userfiles/file/1628522671.pdfIn PDF document text
- https://atl-50.com/files/file/30759483320.pdfIn PDF document text
- http://vrzion.com/data/userfiles/files/sinajaronuxowokekavopoz.pdfIn PDF document text
- http://sunarfactory.com/userfiles/files/kegelov.pdfIn PDF document text
- http://teenmag.cz/userfiles/file/84766482759.pdfIn PDF document text
- http://nitexprofi.cz/userfiles/file/gezirivirab.pdfIn PDF document text
- https://www.duffylighting.com/wp-content/plugins/super-forms/uploads/php/files/4d77dd7c6c63bf2df05f35ed3e730bd4/89580699673.pdfIn PDF document text
- http://jagatjyotischool.org/jagatjyotischool/userfiles/file/watuwurupabilerawipawubar.pdfIn PDF document text
- http://www.bufolari.com/public/immagini/file/xifedek.pdfIn PDF document text
- http://dongkoo.com/uploads/editor/files/90938005575.pdfIn PDF document text
- http://xn----7sbakn3aoflleitf3m6a.xn--p1ai/userfiles/file/28595062294.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_off0000bf7f.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xBF7F | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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font_01_sfnt_off0000d791.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xD791 | 17584 bytes |
SHA-256: e9667a5093035d14074d7e62e4508bc5a47266f13569476684213a13373bf3e2 |
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font_02_sfnt_off0001053c.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x1053C | 10668 bytes |
SHA-256: 4f2d2c057bc628bdb71132622d4d8ab641396da3794c1f0b1f279a8caaab087e |
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