MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1204.002 Malicious Link
The PDF was flagged by ML and ClamAV as malicious, specifically as a phishing trojan. Heuristics indicate it functions as a link farm, with numerous URLs pointing to disposable or compromised hosting. The document body is heavily obfuscated and appears to be non-readable content generated by wkhtmltopdf, suggesting the primary function is to host links rather than display information.
Machine Learning
- Nyx PDF Classifier malicious score 0.9974
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 http://el-master.ru/userfiles/file/39285398025.pdf In PDF document text
- http://www.festivalmarrakech.info/wp-content/plugins/formcraft/file-upload/server/content/files/1607f810343857---falir.pdfIn PDF document text
- http://cermak-expo.cz/data/files/file/datesawazekelesijibuje.pdfIn PDF document text
- https://livnica-metalurg.com/images/pages/file/xomopepugopisimaz.pdfIn PDF document text
- http://stigstudiotecnico.it/userfiles/files/74069273157.pdfIn PDF document text
- http://bagiez.de/userfiles/file/panoxipobejugidofefumop.pdfIn PDF document text
- http://andreagarciam.com/wp-content/plugins/formcraft/file-upload/server/content/files/1609a629ecaf7d---biwuwu.pdfIn PDF document text
- https://cvenhancer.com/wp-content/plugins/super-forms/uploads/php/files/29c4d383b8584eecac7308205058c4b1/92108098709.pdfIn PDF document text
- http://chinasoftcore.com/userfiles/file///zudunoladajuw.pdfIn PDF document text
- http://www.39koratmachinery.com/file_upload/files/50329852933.pdfIn PDF document text
- https://scavilecis.it/userfiles/file/kogusofajosixilopo.pdfIn PDF document text
- http://polipadel.com/userfiles/file/texagati.pdfIn PDF document text
- http://cukiernia-waltar.pl/qcms/userfiles/file/11543725520.pdfIn PDF document text
- https://www.hotel-restaurant-plainfaing.fr/ckfinder/userfiles/files/43745410812.pdfIn PDF document text
- https://puertoestereo.com/wp-content/plugins/super-forms/uploads/php/files/thckq47ssltpo00t2ut3k14g7s/wijarizelat.pdfIn PDF document text
- http://surtek.biz/image/files/20150116_030150.pdfIn PDF document text
- http://www.hussco-steel.com/husscofiles/files/tigisiwusavuxi.pdfIn PDF document text
- http://didula.ru/img/file/6057853303.pdfIn PDF document text
- http://adabaskimerkezi.com/upload/file/78109316283.pdfIn PDF document text
- http://mxagproducts.com/upload/browse/file/kasolubatafon.pdfIn PDF document text
- https://gastrotest.co/ckfinder/userfiles/files/29181783516.pdfIn PDF document text
- https://mediabandit.com/wp-content/plugins/formcraft/file-upload/server/content/files/160cc24b612655---59366989931.pdfIn PDF document text
- http://teranor.com/ckfinder/userfiles/files/dumeliruriveroje.pdfIn PDF document text
- http://kwik-it.ru/wp-content/plugins/formcraft/file-upload/server/content/files/160999c631cdcd---61347626918.pdfIn PDF document text
- https://psychotherapie-dr-albrecht.de/wp-content/plugins/formcraft/file-upload/server/content/files/160aaa7fa80c1b---javimogofatarefaxem.pdfIn PDF document text
- https://feedproxy.google.com/~r/1eyvgo/aqOO/~3/BvfzZFkJO3s/uplcv?utm_term=contaminaci%C3%B3n+electromagn%C3%A9tica+libro+pdfPDF 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_off0000bf3a.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xBF3A | 16776 bytes |
SHA-256: 72ec08285e22b1c4720ecf18d7bd699a49cecfca2c8c7a6d6acfab9454555d6a |
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font_01_sfnt_off0000e96d.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xE96D | 11260 bytes |
SHA-256: 86207ddef904ef99fc15bac41dc6b2877c51f2fed810b466f6a853d559383d8b |
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font_02_sfnt_off000102cf.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x102CF | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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