MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1204.001 User Execution: Malicious Link
This PDF file was flagged by ClamAV as a phishing trojan and by an ML classifier with high confidence. It contains numerous links to external websites, many hosted on compromised CMS platforms or disposable domains, suggesting a link farm designed to redirect users to malicious content. The document body is heavily obfuscated and unreadable, but the presence of multiple PDF_URI and PDF_SEO_DISPOSABLE_LINK_FARM heuristics indicates a clear intent to host and distribute links to potentially harmful sites.
Machine Learning
- Nyx PDF Classifier malicious score 0.9947
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://wastran.ru/uplcv?utm_term=silencing+the+past+chapter+1+pdf
- http://sakem.org/userfiles/files/bejukosevekoj.pdf
- https://www.techsrollout.com/wp-content/plugins/formcraft/file-upload/server/content/files/1610d5af2d6ba8---53057190925.pdf
- https://www.idahomedia.com/wp-content/plugins/super-forms/uploads/php/files/dd6a0bfca9179db2d8a2bd82e8b81428/63551230593.pdf
- http://gursakaryahukuk.com/images/file/36331531844.pdf
- http://www.marcado.ca/wp-content/plugins/formcraft/file-upload/server/content/files/1610987bc77e00---resotimufeto.pdf
- http://banquat.com/userfiles/files/77394419697.pdf
- http://suvagcentr.ru/userfiles/files/20233377017.pdf
- https://bonpetsupply.com/wp-content/plugins/formcraft/file-upload/server/content/files/16076185fc6988---zokajegatesifipasomipu.pdf
- http://roland-toys.eu/userfiles/file/85606363439.pdf
- http://hosungtour.com/FileData/ckfinder/files/20210819_586AC736F39F10A8.pdf
- https://macleanpinesdrivingschool.com.au/wp-content/plugins/super-forms/uploads/php/files/baf34aba89b0931fcabf6868287a962a/78098106771.pdf
- http://unseenadventure.com/userfiles/file/vafibega.pdf
- http://www.belladermeestetica.com.br/wp-content/plugins/formcraft/file-upload/server/content/files/16130067fe73e3---14448884.pdf
- https://agrolliance.ca/ckfinder/userfiles/files/7465808939.pdf
- http://myucpb.net/userfiles/file/zikoxedijugereraxuxabame.pdf
- https://shriayurvednagpur.org/public/ckfinder/userfiles/files/bagifuvuwuguwufebinixosi.pdf
- http://www.gainerwindows.ca/wp-content/plugins/super-forms/uploads/php/files/vmvah53gijtj233pk0m8s3f586/71809471370.pdf
- http://structurecreative.com/wp-content/plugins/formcraft/file-upload/server/content/files/1608fd41a8e0c1---tavajebinurug.pdf
- https://velvetskin.pl/wp-content/plugins/super-forms/uploads/php/files/83143c9d2029d2c7a24ee2c159193669/34551592683.pdf
- http://intestinalfortitude.org/clients/0/0c/0cf504f131cb0201443a7bd449519f4a/File/vodonavap.pdf
- https://immo-macedo.lu/userfiles/files/52224171471.pdf
- http://reclaimsplus.com/wp-content/plugins/super-forms/uploads/php/files/3f12efa4978ff1ee23a19d1927ff3d6c/74275100293.pdf
- http://alarmy-kamery24.pl/userfiles/file/91570102896.pdf
- https://blogsma.com/files/35234201572.pdf
- https://shopexpert.com/app/webroot/files/userfiles/files/52526835500.pdf
- http://www.w3.org/1999/02/22-rdf-syntax-ns#
- http://purl.org/dc/elements/1.1/
- http://ns.adobe.com/pdf/1.3/
- http://ns.adobe.com/xap/1.0/
- http://ns.adobe.com/xap/1.0/mm/
- http://ns.adobe.com/xap/1.0/rights/
- http://dejavu.sourceforge.net
- http://dejavu.sourceforge.net/wiki/index.php/License
Extracted artifacts 3
Files carved from inside the sample during analysis.
| Filename | Kind | Source | Size |
|---|---|---|---|
font_00_sfnt_off0000bd16.bin050175d0444dd9d215c1e8c0dee9b7555bb6f54c6f97b254ea95113fb6aa27c1 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xBD16 | 10908 bytes |
font_01_sfnt_off0000d60c.bin931c308d00fb6b540d2fa1f1af71be7ea6db3fe69b4fb4c4fd7958c6edbee925 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xD60C | 17156 bytes |
font_02_sfnt_off000100e5.bin9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x100E5 | 16792 bytes |
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