MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1203 Exploitation for Client Execution
The PDF file was flagged by ML classifiers and ClamAV as malicious, specifically as a phishing trojan. It contains numerous embedded URLs that point to various domains, many of which appear to be compromised WordPress sites or disposable hosting, suggesting a link farm designed to redirect users to malicious content. The heuristic 'PDF_SEO_DISPOSABLE_LINK_FARM' indicates a deliberate attempt to create a large number of links on potentially untrusted hosting.
Machine Learning
- Nyx PDF Classifier malicious score 0.9998
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://laborke.ru/uplcv?utm_term=what+god+will+do+to+your+enemies PDF link annotation
- http://thedewakohchang.com/image/upload/File/9271703743.pdfIn PDF document text
- https://beyondpins.com/calisma2/files/uploads/21448755287.pdfIn PDF document text
- http://kco.su/userfiles/file/44678388732.pdfIn PDF document text
- https://amezdigital.com/wp-content/plugins/super-forms/uploads/php/files/ce95b796eb079d18f7dc435bcbecc637/75729167279.pdfIn PDF document text
- https://imagebeaute.fr/userfiles/file/16965603221.pdfIn PDF document text
- https://newat.ru/wp-content/plugins/super-forms/uploads/php/files/9af5a07c0a3d0f66070753471b45f1ec/pozefuxi.pdfIn PDF document text
- http://ebiocell.com/uploadfile/file///2021060801144655.pdfIn PDF document text
- http://www.thebetterinsurance.com/wp-content/plugins/formcraft/file-upload/server/content/files/160a77857c58af---38388390687.pdfIn PDF document text
- http://ac-kenigsberg.ru/files/file/xivur.pdfIn PDF document text
- http://destockbaby.com/ckfinder/userfiles/files/xezakototosovogagoza.pdfIn PDF document text
- https://recapress.com/ckfinder/userfiles/files/fibava.pdfIn PDF document text
- https://www.digitalsofts.com/wp-content/plugins/formcraft/file-upload/server/content/files/160c778c56a2be---vutonikiti.pdfIn PDF document text
- https://www.femregenx.co.za/wp-content/plugins/super-forms/uploads/php/files/6dru29rfagkgm3cv3cr7cbv17h/99620000318.pdfIn PDF document text
- http://nuraski.pl/wsg/userfiles/77726225836.pdfIn PDF document text
- http://jcaf.or.kr/ckfinder/userfiles/files/72150827065.pdfIn PDF document text
- https://autosaloncenter.com/uploads/file/43045877205.pdfIn PDF document text
- http://www.uppld.org/wp-content/plugins/formcraft/file-upload/server/content/files/160b425fb9c624---sobuzilobopof.pdfIn PDF document text
- http://bagpack.com.np/wp-content/plugins/formcraft/file-upload/server/content/files/160e123f144990---44921826211.pdfIn PDF document text
- https://bostoncake888.com/UserFiles/files/gisaja.pdfIn PDF document text
- https://metroguards.com.au/wp-content/plugins/formcraft/file-upload/server/content/files/160c962e1d337c---37050770117.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_off0000d7df.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xD7DF | 17384 bytes |
SHA-256: b80f837ee5c5900b9c32675f8457131109af10f866e5cb0b1a0367d97b86e184 |
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font_01_sfnt_off000104a3.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x104A3 | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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font_02_sfnt_off00011cba.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x11CBA | 10988 bytes |
SHA-256: a87853d615908bfe5dc662bad36353d34cde1a356394793d68f583c25c9c8dcc |
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