MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1204.002 Malicious Link
The file is a PDF containing numerous embedded URLs, many of which point to compromised websites or disposable domains. The heuristic 'PDF_SEO_DISPOSABLE_LINK_FARM' and 'PDF_COMPROMISED_CMS_UPLOAD_LINK_FARM' indicate a pattern of using such links for malicious purposes, likely phishing or malware distribution. The ML classifier and ClamAV detection further support its malicious nature.
Machine Learning
- Nyx PDF Classifier malicious score 0.9965
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://catamma.ru/uplcv?utm_term=energia+solar+monografia+pdf PDF link annotation
- https://iword.de/userfiles/file/bozejuwegini.pdfIn PDF document text
- https://angkortaxiservice.com/userfiles/file/87562181305.pdfIn PDF document text
- http://makairways.in/home/makairways2017/public_html/dowalumniusa/ckfinder/userfiles/files/77118539711.pdfIn PDF document text
- http://pro-group.ru/userfiles/files/65519082623.pdfIn PDF document text
- http://masan315.net/board/imagefile/file/ganagulosegulevilowawan.pdfIn PDF document text
- http://toroisg.com/public/images/files/75968089634.pdfIn PDF document text
- https://tybistanbul.org/resimler/files/5718923696.pdfIn PDF document text
- http://busankid.com/webfiles/board/file///49769410309.pdfIn PDF document text
- https://gionggiacam.com/ckfinder/userfiles/files/vinetanidogidixorotele.pdfIn PDF document text
- http://dienlanhlongan.com/upload/files/3257865258.pdfIn PDF document text
- http://plncse.hu/php_data/file/74751372008.pdfIn PDF document text
- https://korzayithalat.com/spot/admin/fckeditor/userfiles/file/sudexogikumubazikimem.pdfIn PDF document text
- http://pokebarslo.com/uploads/files/boxozatewenujeno.pdfIn PDF document text
- http://peoplefineart.com/assets/202109/files/20210908045807197197.pdfIn PDF document text
- https://eravukappalpalli.com/userfiles/file/jajoripatav.pdfIn PDF document text
- https://nirmalujjwal.com/public/ckfinder/userfiles/files/vewigesuvomobabuxe.pdfIn PDF document text
- http://mgmkt.com.br/wp-content/plugins/formcraft/file-upload/server/content/files/16130f1bc08d9c---51495021632.pdfIn PDF document text
- http://isleford.com/filespath/files/20210907132504.pdfIn PDF document text
- http://palenice.net/obrazky_clanky/file/xerekobafadifawivi.pdfIn PDF document text
- https://cutletsmeat.com/wp-content/plugins/formcraft/file-upload/server/content/files/16134e686615ba---83706971958.pdfIn PDF document text
- https://tahuacoop.com/cms_gpadmin2015/sgi_userfiles/userfiles/files/13597324827.pdfIn PDF document text
- http://www.goldenlantern.co.za/wp-content/plugins/formcraft/file-upload/server/content/files/1612ef8038b19c---70297671876.pdfIn PDF document text
- http://audiencefertilization.com/fckeditor/editor/filemanager/connectors/php/userfiles/file/15127904009.pdfIn PDF document text
- https://christianbelieversmatrimony.com/web/christiansbelieversmatrimony/photos/ckeditor/files/domowegasokupanu.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_off00010714.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x10714 | 10728 bytes |
SHA-256: c82db8d5e73cca6e4bb789ee426bad368b497123321c5f21cfb8659aad1c69ed |
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font_01_sfnt_off00011f65.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x11F65 | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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font_02_sfnt_off00013777.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x13777 | 18836 bytes |
SHA-256: 1c058e7fdc963b40267abbb83c2c0a6bb345353765cd76d6a88198b81f3ec571 |
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