MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1204.001 User Execution: Malicious Link
This PDF file was flagged by multiple heuristics as malicious, including a critical ClamAV detection and an ML classifier indicating a high probability of maliciousness. The heuristics indicate the document functions as a link farm, directing users to numerous compromised WordPress sites and disposable hosting domains. The embedded URLs suggest an attempt to lure users to phishing or malware distribution sites.
Machine Learning
- Nyx PDF Classifier malicious score 0.9974
Heuristics 6
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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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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://chcial.ru/uplcv?utm_term=fuentes+de+investigacion+primaria+y+secundaria+pdf PDF link annotation
- http://gz-chengeng.com/uploadfile/files/gikuxutumuxanufutuze.pdfIn PDF document text
- http://hellnocancershow.com/wp-content/plugins/formcraft/file-upload/server/content/files/16100f78baca2a---4958776696.pdfIn PDF document text
- https://ilc.ua/wp-content/plugins/super-forms/uploads/php/files/idfv7us58gotpglfgrb460tem5/62494238566.pdfIn PDF document text
- http://www.virtualaid.eu/wp-content/plugins/formcraft/file-upload/server/content/files/16071dc89351c4---fubagexojixiwo.pdfIn PDF document text
- https://mudraconsultancy.com/uploads/files/dorodujokuwut.pdfIn PDF document text
- http://la-roofers.co.uk/wp-content/plugins/formcraft/file-upload/server/content/files/1609b6617089a9---mifisozidil.pdfIn PDF document text
- http://qkmedica.com/uploads/userfiles/file/mevada.pdfIn PDF document text
- http://goldenpeak.it/userfiles/files/66474745429.pdfIn PDF document text
- http://franklcalabreseattorney.com/customer/3/d/9/3d947ad6ce2568d98b832ccf5548371bFile/rasuzosoburadalulu.pdfIn PDF document text
- http://southeastern61.com/clients/0/07/0748cf78e2268043913ae7c14e09e996/File/51447463822.pdfIn PDF document text
- http://agro-norwa.pl/userfiles/file/poxinekos.pdfIn PDF document text
- http://calliopegoodrich.com/clients/73417/File/80535459900.pdfIn PDF document text
- https://fentesmakina.com/paket/upload/files/50638072375.pdfIn PDF document text
- http://www.movingintofreedom.com/wp-content/plugins/formcraft/file-upload/server/content/files/16075e14b2f841---radifalozo.pdfIn PDF document text
- https://mimpiindah2.com/contents/files/9165513547.pdfIn PDF document text
- http://www.finanzanlagen-honorarberatung.de/wp-content/plugins/formcraft/file-upload/server/content/files/16102b2c81054b---mamikafibatizisagozekar.pdfIn PDF document text
- http://vit-physio.de/file/beburuvamibekopopabe.pdfIn PDF document text
- https://sgicorp.com/userfiles/files/dagaw.pdfIn PDF document text
- http://domkomplekt34.ru/attachments/file/87347299636.pdfIn PDF document text
- https://bursakaynak.net/userfiles/file/60785337878.pdfIn PDF document text
- http://juniorsmagazine.com/wp-content/plugins/formcraft/file-upload/server/content/files/160894201b6bd5---8562441902.pdfIn PDF document text
- http://yuseigachi.nl/wp-content/plugins/formcraft/file-upload/server/content/files/160a80d1dbce75---76609309640.pdfIn PDF document text
- https://0900107678.com/upload/file/1359006317.pdfIn PDF document text
- http://laihoawedding.com/app/webroot/upload/files/3709118591.pdfIn PDF document text
- http://tce.vn/imagesflashupload/file/15729913722.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_off0000da08.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xDA08 | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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font_01_sfnt_off0000f21a.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xF21A | 18356 bytes |
SHA-256: 3b6fde7a8ca7f1a8fccbfdb5e7dd13f6dd204c20672830fc984a8a8cf45805df |
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font_02_sfnt_off00012069.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x12069 | 11176 bytes |
SHA-256: 88e93a4070dc1aab13336908cab034408671969f3a64d521d7c24bf16bc11ea8 |
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