MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1204.002 Malicious Link
The PDF file was flagged by a machine learning classifier and ClamAV as malicious, specifically as a phishing trojan. Heuristics indicate the document functions as a link farm, directing users to multiple external URLs, some hosted on compromised CMS platforms. The presence of numerous unknown-reputation URLs suggests an attempt to distribute malicious content or conduct phishing operations.
Machine Learning
- Nyx PDF Classifier malicious score 0.9947
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://krisoc.ru/uplcv?utm_term=the+pirate+proxy PDF link annotation
- http://nrgmedia.hu/files/file/37105361948.pdfIn PDF document text
- https://renfrewareahealthvillage.ca/ckfinder/userfiles/files/minug.pdfIn PDF document text
- https://renewone.de/files/60185734916.pdfIn PDF document text
- https://vatlieutaphu.com/upload/files/37781964474.pdfIn PDF document text
- http://www.megasaludips.com/wp-content/plugins/formcraft/file-upload/server/content/files/16136e9f9d5667---50849683555.pdfIn PDF document text
- http://jujucuisine.com/userfiles/file/wubafusatituveguvime.pdfIn PDF document text
- http://1-cities.com/blog_images/blog_/file/gametakupitiviremi.pdfIn PDF document text
- http://vizesblokk.hu/files/file/68826774859.pdfIn PDF document text
- http://cyklo-sport-servis.cz/UserFiles/File/kufewesejosizi.pdfIn PDF document text
- http://hertzlaw.com/customer/3/d/9/3d947ad6ce2568d98b832ccf5548371bFile/861760921.pdfIn PDF document text
- http://mengnuanua.com/app/webroot/files/files/fuvesosadawonebenev.pdfIn PDF document text
- http://kelkenaghshband.com/app/webroot/img/files/gajagerema.pdfIn PDF document text
- https://enilubricant.hoakhanh.vn/uploads/image/files/fagosomaruvinuzu.pdfIn PDF document text
- https://123kozijnofferte.nl/wp-content/plugins/super-forms/uploads/php/files/a256773213b02050d56604c53d8d82b9/57623830519.pdfIn PDF document text
- http://xahuaheng.cn/userfiles/file/wojebimuf.pdfIn PDF document text
- http://www.stockholmswingallstars.com/wp-content/plugins/formcraft/file-upload/server/content/files/161321b4a6ae96---7430718993.pdfIn PDF document text
- http://dija.lv/public/userfiles/file/luxikamob.pdfIn PDF document text
- https://dakhoathienhoa.net/images/files/firisivimesinonitigi.pdfIn PDF document text
- http://tpt.taipei/asset/uploads/files/45337416245.pdfIn PDF document text
- http://bridgeonlaw.com/filespath/files/20210901162557.pdfIn PDF document text
- http://ig-einheitsloks.de/medien/file/81349169627.pdfIn PDF document text
- https://alternativecarrepair.nl/userfiles/file/83443897762.pdfIn PDF document text
- http://desushibar.com/userfiles/file/kojozedeninawexoranetebub.pdfIn PDF document text
- https://vinniescustoms.com/userfiles/files/18331749409.pdfIn PDF document text
- http://benthanhsgfarm.net/images/uploads/files/15973853221.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_off0000bf3b.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xBF3B | 16268 bytes |
SHA-256: b403ea3689c31cfb2e7d9390d86ad386ec305182a530c5363253d343fef59f5f |
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font_01_sfnt_off0000e90a.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xE90A | 10208 bytes |
SHA-256: 6731ac8161ba2b8d0ec65169c6553d9337999575a1a1b7ad8ec54af8eb52a22f |
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font_02_sfnt_off00010021.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x10021 | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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