MALICIOUS
164
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
The sample is a PDF file containing embedded JavaScript, which is a common technique for executing malicious code. It also features a link farm pointing to compromised WordPress upload storage and other disposable hosting, indicating a phishing or malware distribution attempt. The ClamAV detection and ML classifier strongly suggest malicious intent.
Machine Learning
- Nyx PDF Classifier malicious score 0.9973
Heuristics 7
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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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Embedded JS stream low PDF_JSPDF references a /JS stream. Generic JavaScript is common in benign forms; specific dangerous APIs are scored by separate rules.
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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://ketchas.ru/uplcv?utm_term=arena+mtg+android PDF link annotation
- http://vincityhomes.vn/wp-content/plugins/super-forms/uploads/php/files/l36p0m97kgvj6b9ks8vmej0v5l/93582409540.pdfIn PDF document text
- http://wpscrm.in/uploaded_files/userfiles/files/zedorejelexebuv.pdfIn PDF document text
- http://hiniceshine.com/upload/14888363423.pdfIn PDF document text
- http://turchifiltri.com/userfiles/files/25265802884.pdfIn PDF document text
- https://dichvumayphoto.vn/webroot/img/files/fixawopub.pdfIn PDF document text
- http://ilsogno-bomboniere.com/userfiles/files/37349736022.pdfIn PDF document text
- http://aeon-dev.com/uploads/files/202109090949549955.pdfIn PDF document text
- https://ximangcampha.vn/upload/files/54894093959.pdfIn PDF document text
- https://artistprasanna.com/userfiles/file/jajukovadiretuta.pdfIn PDF document text
- http://gyarmatilovastorna.hu/userfiles/file/14807514416.pdfIn PDF document text
- http://rutka.pl/media/upload/files/75526885fbe379cc41f2ec10ca71b03f.pdfIn PDF document text
- http://gemcom.org/userfiles/file/kupimifitilababuduze.pdfIn PDF document text
- http://trenermichal.pl/wp-content/plugins/formcraft/file-upload/server/content/files/161319f5c74f91---65027620224.pdfIn PDF document text
- http://altus.pl/userfiles/file/gonuxipisanesubavibozapud.pdfIn PDF document text
- http://stsmcc.org/www/js/ckfinder/userfiles/files/vifosozorogaxakokaju.pdfIn PDF document text
- http://dywin.com/uploadfile/files/kefumeviribolajarinetub.pdfIn PDF document text
- http://travellightnepal.com/userfiles/file/78326667489.pdfIn PDF document text
- http://fortwashington.abwingsmd.com/uploads/files/jafibukotuzizegigaxulemo.pdfIn PDF document text
- http://metamorfozyayincilik.com/userfiles/file/18473081999.pdfIn PDF document text
- http://mebelhotel.ru/userfiles/files/71576299607.pdfIn PDF document text
- http://dentalweek.eu/userfiles/files/sotupelelipawipigimozisu.pdfIn PDF document text
- http://jmlukanich.com/customer/3/d/9/3d947ad6ce2568d98b832ccf5548371bFile/26254494998.pdfIn PDF document text
- https://www.sidertest.it/wp-content/plugins/formcraft/file-upload/server/content/files/1613eb18da994b---petiruw.pdfIn PDF document text
- http://reguitti-engineering.it/userfiles/files/sokuludotazelarige.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_off0000bd6b.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xBD6B | 19956 bytes |
SHA-256: 6c621bd5cafa6f65b8413608b2498ddd4193d99ab9db3ba71e0c33fe6747c0b4 |
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font_01_sfnt_off0000f161.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xF161 | 10356 bytes |
SHA-256: 64cad972c90db76b09453bded6a3ed5da672d71f3354702957decea9ffbf0788 |
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font_02_sfnt_off00010889.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x10889 | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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