MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1204.002 Malicious Link
The PDF was flagged by ML classifiers and ClamAV as malicious, specifically as a phishing trojan. Numerous heuristics indicate it functions as a link farm, with many embedded URLs pointing to compromised websites or disposable domains. The document body is heavily obfuscated and appears to be non-readable content generated by wkhtmltopdf, suggesting the primary function is to host these malicious links.
Machine Learning
- Nyx PDF Classifier malicious score 0.9951
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://catamma.ru/uplcv?utm_term=the+sims+medieval+pirates+and+nobles+cheats PDF link annotation
- http://street.bpv.su/content/files/files/tenigabixavutowumaturera.pdfIn PDF document text
- https://www.barrau-philippe-sedeco.fr/ckfinder/userfiles/files/likitotujegenaxazerur.pdfIn PDF document text
- http://alpanelektrik.com/depo/sayfaresim/file/tujefawepexonu.pdfIn PDF document text
- http://cattaneoarchitetti.it/userfiles/files/5392562884.pdfIn PDF document text
- http://geotersrl.it/file/17709939342.pdfIn PDF document text
- https://grahampropertytax.com/wp-content/plugins/super-forms/uploads/php/files/713895fd7128455118f1a66c5eac230c/xadax.pdfIn PDF document text
- http://buren-kompanie.de/userfiles/files/49514190993.pdfIn PDF document text
- http://pointerboards.com/uploads/admin/files/11430957189.pdfIn PDF document text
- http://dailythang.com/userfiles/files/rivijugizofi.pdfIn PDF document text
- https://kingdomdatesuae.com/userfiles/files/54692711178.pdfIn PDF document text
- https://www.shropshirefurniture.co.uk/admin/ckfinder/userfiles/files/59119322658.pdfIn PDF document text
- https://sleepthai.com/piceditor/file/vapugakifojezixukelofo.pdfIn PDF document text
- https://safetypadlocks.eu/eurostyl/photos/file/85519690699.pdfIn PDF document text
- http://sushiosushi.com/uploads/files/jebesusoler.pdfIn PDF document text
- http://nuuts.mn/uploads/assets/xazoz.pdfIn PDF document text
- https://sg-design.top/wp-content/plugins/super-forms/uploads/php/files/83ab822e1fa0c4cb7199c3d728e11236/91269753864.pdfIn PDF document text
- http://lpc2529.com/piceditor/file/73910376050.pdfIn PDF document text
- http://tangiahoang.com/skinkorea/Images_upload/files/zaludatipalozamesojiv.pdfIn PDF document text
- http://mathcountsoutreach.org/userfiles/file/81881762500.pdfIn PDF document text
- http://www.cerathai.com/image/upload/File/tesanugor.pdfIn PDF document text
- https://thriveelearning.com/wp-content/plugins/super-forms/uploads/php/files/bdada401f5f34fe4f55b152313bd9423/51885055615.pdfIn PDF document text
- https://mcsfood.com/images/file/xekodudawukalisopebijotod.pdfIn PDF document text
- http://chinatriage.com/ckfinder/userfiles/files/82616711697.pdfIn PDF document text
- http://didula.com/img/file/39619946103.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_off0000e058.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xE058 | 19504 bytes |
SHA-256: 9275e79999c71388e4f838a3a92b4b7f347425a02bdefc0dc54ba73aacd5fc9d |
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font_01_sfnt_off000113ab.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x113AB | 10948 bytes |
SHA-256: 564bb0fcc94d9010cff0aa7a7d610f113f23c00549d968dd3fcb4b71b9df8e53 |
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font_02_sfnt_off00012ca3.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x12CA3 | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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