MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
The file was detected as a malicious PDF by multiple heuristics and an ML classifier. It contains numerous external links, many pointing to disposable hosting or compromised CMS upload directories, suggesting a link farm designed to redirect users. The presence of embedded URLs and the nature of the heuristics indicate a phishing or malware distribution attempt.
Machine Learning
- Nyx PDF Classifier malicious score 0.9971
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://queure.ru/uplcv?utm_term=elaboracion+de+reactivos+pdf PDF link annotation
- http://richardchong.com/userfiles/files/58905262415.pdfIn PDF document text
- http://vimbark.sk/editor_uploads/files/73321482539.pdfIn PDF document text
- http://gachtrangtritranvinhtin.com/gachtrangtritranvinhtin/Images_upload/files/xejali.pdfIn PDF document text
- http://laptopplus.be/app/webroot/files/userfiles/files/butaje.pdfIn PDF document text
- http://www.louthadventures.ie/wp-content/plugins/formcraft/file-upload/server/content/files/1613f6cd7716da---pelaxaxokife.pdfIn PDF document text
- https://299-45.com/CKEdit/upload/files/nunokiragezo.pdfIn PDF document text
- http://galsabino.it/userfiles/files/67458768817.pdfIn PDF document text
- http://smartmedicaleg.com/wp-content/plugins/formcraft/file-upload/server/content/files/16147298bcaf9a---18214452857.pdfIn PDF document text
- https://vayamcs.com/content_files/files/31212215746.pdfIn PDF document text
- http://reversetheclocknow.com/ckfinder/userfiles/files/92847151545.pdfIn PDF document text
- http://microsolder.hu/userfiles/files/nimumoraxifiwogo.pdfIn PDF document text
- https://nguyenhungstone.com/uploads/image/files/15240261093.pdfIn PDF document text
- https://yaslibakicisi.net/userfiles/file/59537963812.pdfIn PDF document text
- http://likuidart.com/files/ckeditor/files/rufefeker.pdfIn PDF document text
- https://riondene.ch/img/uploads/file/refitixufukujejokukajilid.pdfIn PDF document text
- https://www.alongsideasia.com/wp-content/plugins/super-forms/uploads/php/files/b7da3925904903446fee16e320ffe8b0/43577498974.pdfIn PDF document text
- https://goldgreiner.de/userfiles/file/95745102077.pdfIn PDF document text
- https://hacunamatata.ru/wp-content/plugins/super-forms/uploads/php/files/1ad9627db95fb25cfbffeca8cc4d84b7/28799331153.pdfIn PDF document text
- http://nickelsgrafikdesign.de/ckfinder/userfiles/files/popotatife.pdfIn PDF document text
- http://www.saletime.gr/admin/fckfiles/file/fotobamasiri.pdfIn PDF document text
- http://nabisori.com/userfiles/file/95799522705.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_off0000b93c.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xB93C | 10804 bytes |
SHA-256: 2a8b849605889c43023e672ddaae2feb9613343762514b2b06eea3a3c54e385a |
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font_01_sfnt_off0000d20c.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xD20C | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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font_02_sfnt_off0000ea1e.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xEA1E | 18888 bytes |
SHA-256: 425cddb38dfbb10b02c02cc5985a79f8c69e1d8301ce82ed9cf7da4e153b4d7c |
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