MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1203 Exploitation for Client Execution
The file was detected as malicious by ClamAV and an ML classifier, indicating a high likelihood of malicious intent. It contains numerous links pointing to compromised WordPress sites and other domains, suggesting a link farm designed to redirect users. The presence of external URI heuristics and compromised CMS upload links strongly indicates a phishing or malware distribution campaign.
Machine Learning
- Nyx PDF Classifier malicious score 0.9982
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=mi+latest+android+version PDF link annotation
- http://trainternational.in/wp-content/plugins/formcraft/file-upload/server/content/files/1613f1ce983ce5---razitatagaropinafito.pdfIn PDF document text
- http://cocoal.com/uploads/file/zumuwejewalosi.pdfIn PDF document text
- https://dubaimotorcycletours.com/uploaded_images/files/nugejonawowawola.pdfIn PDF document text
- https://anvatsaigon.suzukihungyen.net/data/dulieu/files/gilosaveledo.pdfIn PDF document text
- http://ambulanceservice.pl/userfiles/file/xemexedijuwa.pdfIn PDF document text
- http://hanlacsclub.com/ckupload/files/roteliliduropemu.pdfIn PDF document text
- http://www.deadclan.nl/wp-content/plugins/formcraft/file-upload/server/content/files/1613df48e9b1e7---negetufag.pdfIn PDF document text
- http://abogarestudio.com/userfiles/file/jodekutisasiwudidujadu.pdfIn PDF document text
- https://malinaionescu.ro/userfiles/file/titozevajalivuxusuvog.pdfIn PDF document text
- http://brucemayrockinstitute.com/assets/ckfinder/core/connector/php/uploads/files/47572560745.pdfIn PDF document text
- http://topliving.sk/userfiles/file/93050107804.pdfIn PDF document text
- https://fullmagicweekend.com/ckfinder/userfiles/files/nonabiwore.pdfIn PDF document text
- http://medical-1669.com/userfiles/files/14517147706.pdfIn PDF document text
- http://cementfeet.com/userfiles/file/xaparikogejip.pdfIn PDF document text
- http://shijijiaming.net/filespath/files/20210915181959.pdfIn PDF document text
- https://sintasyapi.com/img/userfiles/file/42664336798.pdfIn PDF document text
- http://www.farmaciabergua.com/userfiles/files/noxosirefetaveje.pdfIn PDF document text
- http://rinsacars.com/files/others/lebanoxewewosogizatuv.pdfIn PDF document text
- http://jamones-luna.shopcloud.es/ckfinder/userfiles/files/47599212334.pdfIn PDF document text
- https://sellos-mecanicos.com/wp-content/plugins/super-forms/uploads/php/files/63e74018c7715de9ca70755042792c24/lanebusijijepamop.pdfIn PDF document text
- http://about-dogs.ru/upload/file/mudusopexodeza.pdfIn PDF document text
- http://kioskcondoweb.wpengine.com/wp-content/plugins/formcraft/file-upload/server/content/files/1614858516ded2---siwufumipovuxaxirekisom.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_off0000b145.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xB145 | 10300 bytes |
SHA-256: 7e911e520e45daf0ec0723f462990ac8459f525dfce42a04dc570dfc0be760ce |
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font_01_sfnt_off0000c899.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xC899 | 14756 bytes |
SHA-256: 8dca19c7990ea6fcf8fbcb2006a160c0e8040d64808abde613710de3dde7a4a9 |
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font_02_sfnt_off0000ed6c.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xED6C | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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