MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1203 Exploitation for Client Execution
The PDF was flagged by a machine learning classifier and ClamAV as malicious, specifically as a phishing trojan. It contains numerous URLs, many pointing to compromised CMS uploads or disposable hosting, suggesting a link farm designed to redirect users to malicious sites. The document body is heavily obfuscated and appears to be generated by wkhtmltopdf, providing no direct user-facing content but likely serving as a container for the malicious links.
Machine Learning
- Nyx PDF Classifier malicious score 0.9956
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 https://dreptultau.hotnews.md/upload/userfiles/files/fozefoxujezufijotuludeduz.pdf In PDF document text
- http://saikunghouse.hk/userfiles/62710217029.pdfIn PDF document text
- https://mamotato.ro/userfiles/file/73599156772.pdfIn PDF document text
- https://www.abandassociates.com/ckfinder/userfiles/files/dorexepejizazu.pdfIn PDF document text
- https://unitedcardsolutions.com/wp-content/plugins/formcraft/file-upload/server/content/files/1614fc5175ef6a---64274898929.pdfIn PDF document text
- http://topoint.cc/userfiles/fckFile/20210924034752.pdfIn PDF document text
- https://home-consult.lu/userfiles/files/lutazigus.pdfIn PDF document text
- http://hmed.vn/upload/files/barugofizi.pdfIn PDF document text
- http://kenzoum.org/home/integrity/public_html/ckfinder/userfiles/files/17879406188.pdfIn PDF document text
- https://snabavto.com/wp-content/plugins/formcraft/file-upload/server/content/files/16131b97e91283---vodagobadoxaxamozogarera.pdfIn PDF document text
- http://www.rafaellucenaehijos.com/ckfinder/userfiles/files/tobetitepiwaxoji.pdfIn PDF document text
- https://granitabrasive.ro/editor_up/35591312974.pdfIn PDF document text
- http://rld-carbon.com/file/weluto.pdfIn PDF document text
- http://masterref.ru/editorfiles/file/wetesosufonasaw.pdfIn PDF document text
- https://sipsib.ru/wp-content/plugins/super-forms/uploads/php/files/57dd85a60f4d172cdf3514faba43d50e/59315934212.pdfIn PDF document text
- http://1carl.com/userfiles/file/remebowaru.pdfIn PDF document text
- https://taperagi.com/contents/files/forapokamitidipup.pdfIn PDF document text
- http://ensky-chemical.com/upload/files/78389700225.pdfIn PDF document text
- https://www.chablis-gautherin.com/ckfinder/userfiles/files/muzemu.pdfIn PDF document text
- http://adbrf.com/files/fckeditor/file/1072211128614b390271b1e.pdfIn PDF document text
- http://pincailight.com/zk/UploadFile/file/2021092417501773499.pdfIn PDF document text
- http://hongsung114.com/files/fckeditor/file/bakidumejuzarobo.pdfIn PDF document text
- https://designsdubaiukfashion.com/userfiles/file/51572028830.pdfIn PDF document text
- https://feedproxy.google.com/~r/Uplcv/~3/YTWXjIUwRh0/uplcv?utm_term=suicide+squad+full+movie+watch+online+free+megavideoPDF 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_off0000af7f.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xAF7F | 16372 bytes |
SHA-256: 41fc4b21da162f827a00255415a23467cc952bd8037d45a120c17e686132e4ec |
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font_01_sfnt_off0000d934.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xD934 | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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font_02_sfnt_off0000f14b.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xF14B | 11396 bytes |
SHA-256: e8d4f14de38c8cd3b3b3daff4c60b6086137a0bb77567610a9bf42bc7a7bb238 |
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