MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
This PDF file was detected as malicious by ML classifiers and ClamAV, indicating a phishing or trojan threat. It contains numerous links to external websites, many hosted on compromised CMS upload directories or disposable hosting, suggesting a link farm designed to redirect users to malicious content. The document body is heavily obfuscated and appears to be generated by wkhtmltopdf, but the presence of PDF_URI and PDF_SEO_DISPOSABLE_LINK_FARM heuristics strongly suggests a malicious intent to redirect users through a series of links.
Machine Learning
- Nyx PDF Classifier malicious score 0.9822
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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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://alituncer.com/userfiles/file/54529158878.pdf In PDF document text
- https://pankalconstructora.com/wp-content/plugins/formcraft/file-upload/server/content/files/160afc348b999a---mirudiju.pdfIn PDF document text
- https://chamsocmuihong.com/wp-content/plugins/super-forms/uploads/php/files/4aga3qnkj106jc0h9391aobfcu/sukolobivefireguriditagi.pdfIn PDF document text
- http://www.auditsi.com/wp-content/plugins/formcraft/file-upload/server/content/files/160cae2957ff0c---bowiriziv.pdfIn PDF document text
- http://ahcxdq.com/uploads/file/03134412420.pdfIn PDF document text
- http://shmountaineering.co.uk/wp-content/plugins/super-forms/uploads/php/files/jb43iukcueerua9n7plrbjvt56/39102040096.pdfIn PDF document text
- http://artecgroupservices.com/imagenes/file/libokevegak.pdfIn PDF document text
- https://maspacientes.es/wp-content/plugins/super-forms/uploads/php/files/2ec6jjfrncfmleejjsemsuivht/22933766838.pdfIn PDF document text
- http://al-bandak.com/userfiles/file/97081146100.pdfIn PDF document text
- https://agatanorek.com/files/file/bapovifafaxa.pdfIn PDF document text
- https://www.chartsunlimited.com.ph/wp-content/plugins/formcraft/file-upload/server/content/files/160a9f433278d7---84511756265.pdfIn PDF document text
- https://michaels-limo.com/wp-content/plugins/formcraft/file-upload/server/content/files/160b6b3f569e82---lelozupesuzul.pdfIn PDF document text
- http://filatelianumismaticaumbra.it/userfiles/file/5673897059.pdfIn PDF document text
- http://alliance-ltd.com/userfiles/supekisaniwebisitakugo.pdfIn PDF document text
- https://landlorddebtadvisory.com/wp-content/plugins/super-forms/uploads/php/files/t35sedjgpt8dr8sum30l2emmr6/40182510972.pdfIn PDF document text
- http://limpiasol.com/wp-content/plugins/formcraft/file-upload/server/content/files/1609dd366cf384---jefuz.pdfIn PDF document text
- http://kondicionery-dolgoprudny.ru/upload_picture/file/72060401519.pdfIn PDF document text
- https://yidinfo.net/wp-content/plugins/super-forms/uploads/php/files/m45h1pj6foj894nrqct3eqpabc/silulelujabojaroza.pdfIn PDF document text
- https://al-farh-iq.com/upload/userfiles/file/fimurutenozudadijage.pdfIn PDF document text
- http://www.everhouse.lt/wp-content/plugins/formcraft/file-upload/server/content/files/160c1fec0af6cc---16309306313.pdfIn PDF document text
- http://akademia-jedenastka.pl/zdjecia/fck/file/kodukuxiloza.pdfIn PDF document text
- http://inlikeflintlogistics.com/wp-content/plugins/formcraft/file-upload/server/content/files/160713329d3ac0---13571288633.pdfIn PDF document text
- http://kingtonkatsu.com/uploads/files/62255599761.pdfIn PDF document text
- https://kovosluzba-praha.cz/res/file/22704549777.pdfIn PDF document text
- https://riondene.ch/img/uploads/file/notirabuxapi.pdfIn PDF document text
- https://traveltokiev.com/wp-content/plugins/super-forms/uploads/php/files/ucj8dh0kpodnbjj5hinorsbs26/4155148841.pdfIn PDF document text
- https://vannordenvastgoed.nl/userfiles/file/gigaduxojemabokuxateror.pdfIn PDF document text
- https://www.travelticket.com.au/wp-content/plugins/super-forms/uploads/php/files/gn8v9pgkq172me7ueb4tqhr4h4/tidajewinod.pdfIn PDF document text
- https://feedproxy.google.com/~r/skout/mBVl/~3/A3Ryygt5BCM/uplcv?utm_term=business+requirement+document+for+e+commerce+website+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_off0000fc4f.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xFC4F | 17256 bytes |
SHA-256: 15c25dc1fd8a96be5f38edd79ffd74345674df9da14c60662db3d98f53008f2c |
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font_01_sfnt_off000128c0.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x128C0 | 11096 bytes |
SHA-256: 669c18523050ff52491db59b8d4cb8ae94be080f87d2ff9c86f131b49df9ca2a |
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font_02_sfnt_off00014253.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x14253 | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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