MALICIOUS
164
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
The sample is a PDF file detected as malicious by ClamAV and flagged by an ML classifier. It contains embedded JavaScript and a significant number of external URIs, many of which point to compromised CMS uploads or disposable hosting, forming a link farm. These links likely serve as lures for phishing or to download additional malicious content.
Machine Learning
- Nyx PDF Classifier malicious score 0.7932
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://coretry.ru/uplcv?utm_term=7a+growing+zone PDF link annotation
- http://lgassociates.in/uploads/27403199565.pdfIn PDF document text
- http://maszyny.pl/userfiles/file/26176835145.pdfIn PDF document text
- http://live-lessons.net/lcj/web/uploads/assets/file/lugapuxekevugeji.pdfIn PDF document text
- https://remont-bez-zabot.ru/files/file/bumanubulabulaxedekuxi.pdfIn PDF document text
- http://apicn.net/upload/files/ranesujuna.pdfIn PDF document text
- http://consulcongress.it/uploads/assets/file/newup.pdfIn PDF document text
- http://topmebli.com/content/xuploadimages/file/73827502377.pdfIn PDF document text
- http://zuszdounky.cz/files/xobuluwugokogigisape.pdfIn PDF document text
- http://accurateverdicts.com/wp-content/plugins/formcraft/file-upload/server/content/files/161405c72e9c7d---8683447690.pdfIn PDF document text
- https://inclinedigital.com/wp-content/plugins/formcraft/file-upload/server/content/files/161412054be654---pefigamexowinawup.pdfIn PDF document text
- http://cx-gl.hu/images/files/lekanelizisu.pdfIn PDF document text
- http://aktifbant.com/resimler/files/50758111692.pdfIn PDF document text
- https://stl-log.com/htdocs/cljr/data/files/65067080081.pdfIn PDF document text
- http://sun-marche.com/app/webroot/js/ckfinder/userfiles/files/biriwijel.pdfIn PDF document text
- https://ppkh.net/userfiles/file/tejekike.pdfIn PDF document text
- http://ceramkgres.ru/userfiles/file/sajufejizadutowa.pdfIn PDF document text
- http://files.ibiza-ferien.de/file/46546074297.pdfIn PDF document text
- http://www.sunaryem.com.tr/wp-content/plugins/super-forms/uploads/php/files/rqcetfn4qrjk86msmc401l1jc0/44082080376.pdfIn PDF document text
- https://tidaksusah.com/contents/files/92962003077.pdfIn PDF document text
- https://gilboamedia.com/userfiles/file/47644280273.pdfIn PDF document text
- http://laser-piskovani.cz/democms/userfiles/file/nezimuwikikipav.pdfIn PDF document text
- https://tempatpasang.com/contents/files/vatefadugub.pdfIn PDF document text
- http://fratellibeninca.com/images/file/70626759465.pdfIn PDF document text
- https://alpinebadmintonacademy.com/ckfinder/userfiles/files/23366882468.pdfIn 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_off0000db8b.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xDB8B | 10072 bytes |
SHA-256: fd3829fcbdfcb82e915f880122dd5852ba8d0e7eb91856f0f7b03acf3a9d0680 |
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font_01_sfnt_off0000f227.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xF227 | 19084 bytes |
SHA-256: 5367902a424bdafbbd383f4c3ba4622572e9536b550a38966a6e4740aa690c1e |
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font_02_sfnt_off0001240c.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x1240C | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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