MALICIOUS
164
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
The sample is a PDF file flagged by ClamAV as Pdf.Phishing.Trojan. It contains numerous external URIs and is identified as a link farm, with several URLs pointing to compromised or disposable hosting. Embedded JavaScript was also detected, suggesting potential malicious scripting capabilities within the PDF.
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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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://wastran.ru/uplcv?utm_term=clash+of+clans+apk+ultima+version
- http://autoset66.ru/admin/ckfinder/userfiles/files/54185678911.pdf
- https://forumhrdbekasi.com/webroot/userfiles/files/guzavelasutefigij.pdf
- https://istanajpdua.com/contents/files/fokelorapaviparunaz.pdf
- http://eduomania.com/wp-content/plugins/formcraft/file-upload/server/content/files/16134cd66d9977---jidopijir.pdf
- http://residencecarlofelice.com/userfiles/files/boxovonaworaze.pdf
- https://nceptionsolutions.com/wp-content/plugins/super-forms/uploads/php/files/07f385c12d025bbc37067b765939bc04/71674050822.pdf
- https://maritime-models.com/userfiles/file/raniwuxemi.pdf
- http://consorzio-csa.it/userfiles/files/3527412296.pdf
- http://tubesealer.com/uploaded/file/134870894461435d0993b19.pdf
- http://darec.sk/files/files/21611439982.pdf
- https://gestionarival.com/userfiles/file/34553505866.pdf
- http://classiccar-jp.com/js/upload/files/59565101251.pdf
- http://www.1atlanticfunding.com/wp-content/plugins/formcraft/file-upload/server/content/files/16132f7f5b011a---81876652050.pdf
- https://eliteswimmingpoolsinc.com/wp-content/plugins/super-forms/uploads/php/files/0jvnf99aka14dcg98v1cdifp76/98994432143.pdf
- http://bestbuyfromindia.com/userfiles/file/33269589563.pdf
- http://sasnowosielski.com/ckfinder/userfiles/files/xugamuv.pdf
- https://khachsan295doson.vn/namthuan/images/news/files/tafipetax.pdf
- https://yumasri.com/assets/ckfinder/userfiles/files/jeresadagovuzonamotitisat.pdf
- https://preciseenergygroup.com/media/rovab.pdf
- http://www.nbrownies.com.br/wp-content/plugins/formcraft/file-upload/server/content/files/16131aad22527e---50664068645.pdf
- http://restauraceeverest.cz/userfiles/file/51478472115.pdf
- http://bibrka-school.org.ua/ckfinder/userfiles/files/40728430177.pdf
- https://linker.tw/files/79346722001.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_off0000d5d9.bin8597348d0bd22eefea28dd6dc6e848c7cd02c3f7429868b3d9fdcf66e3af96e6 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xD5D9 | 17968 bytes |
font_01_sfnt_off00010474.binafc5758498d2d211b5b52d59fe723749678c824a1dad489fc5ccb1215b939038 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x10474 | 11036 bytes |
font_02_sfnt_off00011e00.bin9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x11E00 | 16792 bytes |
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