MALICIOUS
146
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1204.002 Malicious Link
The PDF was flagged by ClamAV as a phishing trojan and by an ML classifier with high confidence. It contains numerous embedded URLs, many pointing to suspicious domains, and a heuristic identified it as a link farm on disposable hosting. The document body is heavily obfuscated, preventing analysis of its specific content, but the overall structure and heuristic firings indicate a malicious intent to redirect users to external sites.
Machine Learning
- Nyx PDF Classifier malicious score 0.9977
Heuristics 6
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ClamAV: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0 critical CLAMAV_DETECTIONClamAV detected this file as malware: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0
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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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QR-code redirect lure medium SE_QR_LUREDocument instructs the user to scan a QR code with a phone — consistent with QR phishing, but also common in legitimate documents
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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 http://formel1vermietung.de/userfiles/file/80483818954.pdf In PDF document text
- http://grapes4u.ca/sites/all/sites/grapes4u.ca/files/wojadowililodelupus.pdfIn PDF document text
- https://westhigienia.hu/editor_up/pemitukibi.pdfIn PDF document text
- https://www.thic.net/plugin/ce1/ckfinder/userfiles/files/fodemekutatuponuvo.pdfIn PDF document text
- http://mtsp.by/userfiles/files/jawojobemut.pdfIn PDF document text
- http://888chji.com/userfiles/files/76500651780.pdfIn PDF document text
- http://autoscuolapezzano.it/userfiles/files/25954421062.pdfIn PDF document text
- http://sanyosushiglendora.com/uploads/files/zunexogukozorirakum.pdfIn PDF document text
- http://adice-area.com/pictures/files/41019033744.pdfIn PDF document text
- http://hkxhjfc.ltd/uploads/files/20210909012939.pdfIn PDF document text
- https://cairparavel.ro/app/webroot/files/userfiles/files/bodotosunotulugoxabux.pdfIn PDF document text
- https://laplacedesstores.com/upload/file/ponibeb.pdfIn PDF document text
- http://magooferta.pl/uploads/fck/file/mugorugu.pdfIn PDF document text
- http://finance-bulldog.cz/UserFiles/File/lijozezogosinikesavo.pdfIn PDF document text
- https://cailux.lu/userfiles/files/8172351830.pdfIn PDF document text
- https://floresdeserrezuela.com/aym_image/files/60148470140.pdfIn PDF document text
- https://diphong.com/uploads/wuwebepewopudunoluzuxukub.pdfIn PDF document text
- http://pc580.cn/upload_fck/file/2021-9-1/20210901095250673453.pdfIn PDF document text
- http://simonide.org/userfiles/file/bujizifisibawo.pdfIn PDF document text
- https://drishtinetcom.in/FCKeditor/file/mitobeke.pdfIn PDF document text
- https://cffcommunications.nl/wp-content/plugins/formcraft/file-upload/server/content/files/1/16130689d806f0---12793247492.pdfIn PDF document text
- http://dispensapertutti.com/userfiles/files/bukipaba.pdfIn PDF document text
- https://ibshospitals.com/userfiles/file/legavumolapoja.pdfIn PDF document text
- https://feedproxy.google.com/~r/Uplcv/~3/PmAiG5ZyT-k/uplcv?utm_term=how+to+mirror+android+screen+to+macPDF link annotation
- 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_off0000d7ee.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xD7EE | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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font_01_sfnt_off0000f000.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xF000 | 19268 bytes |
SHA-256: 9a7cfc6a1e82d03e7e6b0e05870b066f1ac95fae63a27b7bbe926cced59201f0 |
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font_02_sfnt_off000122d5.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x122D5 | 10560 bytes |
SHA-256: b78e359eff224dd47eacdafb8569c83623de0433e2d319bbc18330c0b1008d3e |
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