MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
This PDF file was flagged by multiple heuristics and an ML classifier as malicious, with ClamAV detecting it as a phishing trojan. It contains numerous links to external websites, many of which appear to be compromised or disposable hosting, suggesting a link farm designed to redirect users to malicious content. The presence of embedded URLs and the nature of the heuristics strongly indicate a phishing or malware distribution attempt.
Machine Learning
- Nyx PDF Classifier malicious score 0.9976
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 https://oniceh.ru/uplcv?utm_term=removing+printer+ink+from+clothing
- http://gshosnab.ru/userfiles/file/827873990.pdf
- https://ecodiagnost.com/ckfinder/userfiles/files/45814323572.pdf
- http://studiocommercialedelpiano.it/userfiles/files/27163357909.pdf
- https://gz-topstar.com/wp-content/plugins/super-forms/uploads/php/files/e2e191695cdb204f48b38afab9cce4c7/11697399554.pdf
- http://aaaexpressac.com/userfiles/file/2167478528.pdf
- https://psfund.org/public/uploads/files/cms_files/nexixizosunufo.pdf
- https://leunamgroup.com/wp-content/plugins/super-forms/uploads/php/files/5f0a74ac76ef86da9e2cdf7f5343f801/pelikebalimilakelatoxaj.pdf
- https://xn----9sbccjdbca7cyaieg1a3j.xn--p1ai/wp-content/plugins/super-forms/uploads/php/files/2e1455cd7919a57a276438fc0e504843/97662883192.pdf
- http://styropapex.pl/userfiles/file/42299961425.pdf
- http://vizugy.hu/uploads/files/17552947760.pdf
- https://www.alpha-dynamics.gr/wp-content/plugins/formcraft/file-upload/server/content/files/160e9289bf3218---lumejojelesiz.pdf
- https://warungmimpishio.com/contents//files/29349237168.pdf
- https://petroblend.com/wp-content/plugins/formcraft/file-upload/server/content/files/160b625b2a3a5b---82740584683.pdf
- http://sspvjd.com/FileData/ckfinder/files/20210725_257D996EA2D8AA2C.pdf
- https://carpanea.it/wp-content/plugins/super-forms/uploads/php/files/627cb29fc10649a443627a3fad1dae8e/pepadipigufepane.pdf
- http://argentum.com/wp-content/plugins/super-forms/uploads/php/files/epun06s8m1lvcjokd0tnq2lg43/supujanesos.pdf
- https://www.dazzlingdecor.co.uk/wp-content/plugins/formcraft/file-upload/server/content/files/1609de9fa3eb4c---fanor.pdf
- https://assignmentmart.com/ckfinder/userfiles/files/duboj.pdf
- http://www.tif.cn/wp-content/plugins/super-forms/uploads/php/files/rtkov82arev5akkem1ljcjtg3v/78457204987.pdf
- http://litho-and-co.fr/ckeditor/upload/files/39241093815.pdf
- https://kassa-evotor.ru/wp-content/plugins/super-forms/uploads/php/files/ud19bc2k6vuv0jggf3eqt1g1na/doxelupudevepupeleb.pdf
- https://burkina-businessschool.com/business_school/uploads/file/53304663915.pdf
- http://branonperformance.com/ckfinder/userfiles/files/55980132700.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_off0000c272.bin9b9839e0e86a738c9dec7c7f9804d61ea0b5ca2f77d0825c9c3a03e0bd5d7b5f |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xC272 | 10800 bytes |
font_01_sfnt_off0000db24.bin9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xDB24 | 16792 bytes |
font_02_sfnt_off0000f336.bind7c936ff7210c523c14cd45b1a79801d17e047c2859b55e696ddcaddf9f80292 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xF336 | 17028 bytes |
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