MALICIOUS
244
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1204.002 User Execution: Malicious File
This PDF file was flagged by ML classifiers and ClamAV as malicious. It contains embedded JavaScript and presents a fake CAPTCHA, a common lure to trick users into executing malicious content. The document also includes numerous links to external PDFs, some hosted on compromised WordPress sites, suggesting a phishing or credential harvesting attempt.
Machine Learning
- Nyx PDF Classifier malicious score 0.9977
Heuristics 9
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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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Fake CAPTCHA / human verification prompt high SE_FAKE_CAPTCHADocument displays a fake CAPTCHA or human-verification prompt — used to trick users into running commands or pressing keyboard shortcuts
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Password-protected archive handoff high SE_PASSWORD_ARCHIVE_LUREDocument gives password instructions for an archive or attachment — often used to keep payloads encrypted until after gateway scanning
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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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Embedded JS stream low PDF_JSPDF references a /JS stream. Generic JavaScript is common in benign forms; specific dangerous APIs are scored by separate rules.
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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://soalmatematik.com/userfiles/file/farijotenokiv.pdf
- https://gamma-electronics-eg.com/userfiles/files/34766491873.pdf
- https://wsbtitan.com/images/file/23463530346.pdf
- http://www.ernakulamarchdiocese.org/www/js/ckfinder/userfiles/files/zikexenavepovesogiva.pdf
- http://netflor.pl/upload/File/17686241458.pdf
- https://clubsecurite.fr/webroot/upload/files/vabofudububer.pdf
- http://razaviota.ir/basefile/razaviotair/files/worowelijixuvafeva.pdf
- http://brukbet.com/user_images/file/kugejovir.pdf
- http://www.waetsukai.jp/system/ckfinder/userfiles/files/puvutamumagabunoxa.pdf
- https://deconkhoemanh.com/wp-content/plugins/super-forms/uploads/php/files/bcle8vovr9a5hgl2a9sl7nev92/22975419187.pdf
- http://www.theagentpipeline.com/wp-content/plugins/formcraft/file-upload/server/content/files/1613c47633d0e1---lupudetonuvoxotizumef.pdf
- http://rileyillustration.com/images/agency/files/98596961304.pdf
- http://khachsanmyngoc.com/upload/files/dokofosudasusuwatewevux.pdf
- http://teusz.pl/UserFiles/file/45192466534.pdf
- https://thietbivesinhanhhuy.com/asset/files/90336179187.pdf
- https://kindliving.org/wp-content/plugins/super-forms/uploads/php/files/tmp/6045455549.pdf
- http://csc0898.com/userfiles/file/20210902135501_vh4g28.pdf
- https://www.bmo-agencement.fr/ckfinder/userfiles/files/34507353443.pdf
- http://arcenevents.nl/site/upload/files/45695765751.pdf
- https://pottoka.info/files/galeria/files/16408178179.pdf
- https://yodishit.com/uploads/userfiles/file/fimotolaxebunamogubazi.pdf
- http://gelikonline.ru/content/Files/71270481616.pdf
- https://feedproxy.google.com/~r/skout/mBVl/~3/BvfzZFkJO3s/uplcv?utm_term=fortnite+account+generator+with+skins+free
- 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_off0000fef0.bina55a94a5314e779729f3f9ad495aa07dbac38375fa7968215dd1d6cf520e7f12 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xFEF0 | 19460 bytes |
font_01_sfnt_off00013271.bin9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x13271 | 16792 bytes |
font_02_sfnt_off00014a88.bin7e13de8e53de563574a0e1cff7b83b8993dfe1e1c3a3547f614c8873e957112a |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x14A88 | 10824 bytes |
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