MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1204.002 Malicious Link
The PDF file contains numerous links to external websites, many of which are hosted on compromised CMS uploads or disposable domains, indicating a link farm designed to distribute malicious content or phish users. The ML classifier and ClamAV detection strongly suggest malicious intent, likely related to phishing or malware delivery.
Machine Learning
- Nyx PDF Classifier malicious score 0.9956
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://wastran.ru/uplcv?utm_term=diagnostico+de+enfermeria+cirrosis+hepatica+pdf
- http://vtaky.sk/media/file/jejaxepom.pdf
- http://mawratanews.com/armedia/uploads/files/98166937255.pdf
- http://24horasnoar.com.br/ckfinder/userfiles/files/50357688135.pdf
- https://wietsevoermans.nl/ckfinder/userfiles/files/74015852328.pdf
- https://sweetestspaparty.com/wp-content/plugins/formcraft/file-upload/server/content/files/16123a3c10cf8f---genokun.pdf
- http://prochem.vn/images/uploads/files/1016435096.pdf
- http://www.expertnutritionadvisor.com/wp-content/plugins/formcraft/file-upload/server/content/files/16081a4c51630a---vokumine.pdf
- https://njsolarpower.com/wp-content/plugins/super-forms/uploads/php/files/49c98a12d52ea4ffb5f72250c00f0987/43056800536.pdf
- https://glosunspa.com/wp-content/plugins/formcraft/file-upload/server/content/files/16093b35dae0bf---760642640.pdf
- https://shellserva.nl/docs/Image/file/90972665692.pdf
- http://halvani.com/wp-content/plugins/formcraft/file-upload/server/content/files/160bf88c128604---76529720112.pdf
- https://robinio.de/wp-content/plugins/super-forms/uploads/php/files/grml03ac9qhvb2k93uql5cbq1b/zaxilikol.pdf
- http://edgecs.net/documents/2597425248.pdf
- https://limpjet.com.br/wp-content/plugins/super-forms/uploads/php/files/2ca386611fa114bcd0538d097349e883/jevedepovefaludiko.pdf
- http://milwaukee.center/userfiles/file/88897864042.pdf
- http://dmn.ca/wp-content/plugins/formcraft/file-upload/server/content/files/160d578ed4610a---dumifunafigikej.pdf
- http://grupomarsamo.com/wp-content/plugins/formcraft/file-upload/server/content/files/160c6b1c6acd3a---90824720177.pdf
- http://clair-environnement.eu/catalogue_dynamique/file/97195952460.pdf
- http://accessprecision.com/userfiles/file/68588564161.pdf
- http://wakingbeauty.com/wp-content/plugins/formcraft/file-upload/server/content/files/16094600ac662a---21718153065.pdf
- http://www.luminicaambiental.com/wp-content/plugins/formcraft/file-upload/server/content/files/16077678ebd0e2---zosek.pdf
- http://k12kos.com/ckfinder/userfiles/files/49533320133.pdf
- http://peaceinsrilanka.lk/userfiles/file/dadezobo.pdf
- http://www.w3.org/1999/02/22-rdf-syntax-ns#
- http://purl.org/dc/elements/1.1/
- http://ns.adobe.com/pdf/1.3/
- http://ns.adobe.com/xap/1.0/
- http://ns.adobe.com/xap/1.0/mm/
- http://ns.adobe.com/xap/1.0/rights/
- http://dejavu.sourceforge.net
- http://dejavu.sourceforge.net/wiki/index.php/License
Extracted artifacts 3
Files carved from inside the sample during analysis.
| Filename | Kind | Source | Size |
|---|---|---|---|
font_00_sfnt_off0000b0db.bin5735e8a0c48c0eca4d4a320fa7b67871ad766397ccd2fdb57da13e4f7eb049ff |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xB0DB | 11024 bytes |
font_01_sfnt_off0000ca1b.bin177b4c78a8b88ba0d5d02aadcda662cd0720decfc1863b17fdf30f4a59069076 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xCA1B | 14836 bytes |
font_02_sfnt_off0000ee59.bin9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xEE59 | 16792 bytes |
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