MALICIOUS
164
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1203 Exploitation for Client Execution
This PDF file was flagged by multiple heuristics, including a critical ClamAV detection for 'Pdf.Phishing.Trojan'. The file contains numerous links to external sites, many of which appear to be compromised WordPress installations used for hosting malicious PDFs. The presence of a 'download button' lure further suggests a phishing or malware distribution attempt. The ML classifier also strongly indicated maliciousness.
Machine Learning
- Nyx PDF Classifier malicious score 0.9960
Heuristics 7
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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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Visual download / call-to-action button lure low SE_DOWNLOAD_BUTTONDocument contains a call-to-action phrase ('Click here to download', 'Download Now', etc.) — low-signal unless other findings point to a malicious workflow
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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://philabc.ru/uplcv?utm_term=mathematics+shortcuts+for+competitive+exams+pdf PDF link annotation
- https://realwebguys.com/wp-content/plugins/formcraft/file-upload/server/content/files/16070944f072d6---2110869712.pdfIn PDF document text
- http://totalfinance.ca/wp-content/plugins/formcraft/file-upload/server/content/files/1606eb241b576f---pelemomobiregev.pdfIn PDF document text
- http://chromatographvials.com/d/files/7660665565.pdfIn PDF document text
- https://carlojans.com/cms/file/40270219197.pdfIn PDF document text
- http://palaciodelosnavas.com/userfiles/file/31963222010.pdfIn PDF document text
- https://projetounificado.com/uploads/files/pukepifatozi.pdfIn PDF document text
- http://bazatalty.pl/wp-content/plugins/super-forms/uploads/php/files/3f5a3113544fafec6abdcd4e43246dec/11859655782.pdfIn PDF document text
- http://ovartec.com/wp-content/plugins/formcraft/file-upload/server/content/files/160c4d825c2e87---3698526353.pdfIn PDF document text
- https://martybermanassociates.com/wp-content/plugins/super-forms/uploads/php/files/d7ee35ca6ea77f18306b6cc7df6645af/kuzaroveb.pdfIn PDF document text
- http://www.appsolutely.sg/wp-content/plugins/formcraft/file-upload/server/content/files/1606ce9bed2740---6304618979.pdfIn PDF document text
- http://www.louthadventures.ie/wp-content/plugins/formcraft/file-upload/server/content/files/1607e1fedafcca---somaladopumogojenanuvenup.pdfIn PDF document text
- http://www.gesas.it/media/mailinglist/file/lotamekesimewigarikupuz.pdfIn PDF document text
- https://www.shopveriamici.com/wp-content/plugins/super-forms/uploads/php/files/sgpai24g116suvtq02utg66ffq/lirof.pdfIn PDF document text
- http://gd-weimi.com/upfolder/e/files/20210618021734.pdfIn PDF document text
- http://kezmosas.hu/files/file/napaj.pdfIn PDF document text
- http://amtusa.com/wp-content/plugins/formcraft/file-upload/server/content/files/16082c51be6e97---sigapigive.pdfIn PDF document text
- http://bakkervoorwinde.nl/app/webroot/files/ckeditor_files/files/wanobulebojawofozuzodiz.pdfIn PDF document text
- http://bawaconstructions.com/editorData/file/29995125763.pdfIn PDF document text
- http://themultifold.com/wp-content/plugins/super-forms/uploads/php/files/lodduo1ohermd11g2oqkrrpk92/30537785863.pdfIn PDF document text
- http://stopasbestos.ca/wp-content/plugins/formcraft/file-upload/server/content/files/1607e6a950c0b4---rerotizufig.pdfIn PDF document text
- http://superpart.com/files/18802585452.pdfIn PDF document text
- http://nacyc.jp/Upload/file/28782851518.pdfIn PDF document text
- https://stratasphere.online/userfiles/file/zakinoxupisezabawovof.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_off0000de45.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xDE45 | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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font_01_sfnt_off0000f65c.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xF65C | 10996 bytes |
SHA-256: 6b6eaee4a0ac2b21b1110ff89984c07465e86eb67203f2d900038e05a9334063 |
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font_02_sfnt_off00010ff6.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x10FF6 | 17704 bytes |
SHA-256: eb79bbaab9dff00531ba8340fa2ee6f7b4e912e5b4cc3c0f86bba9dc15bb39ea |
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