MALICIOUS
196
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1204.002 Malicious Link
The PDF document contains a fake CAPTCHA or human verification prompt, designed to trick users into clicking malicious links. Several URLs extracted from the document point to compromised CMS uploads or disposable hosting, indicating a phishing or scam attempt. The ML classifier and ClamAV detection strongly support the malicious nature of this file.
Machine Learning
- Nyx PDF Classifier malicious score 0.9532
Heuristics 7
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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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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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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://morethancleaningservices.com/wp-content/plugins/super-forms/uploads/php/files/90a0c07e763f1fbba9c1e6f9c3b16a83/39211653498.pdf
- https://sharmtocairo.com/userfiles/files/wojunotazobozabesevodowu.pdf
- http://ucinnovation.ru/admin/ckfinder/userfiles/files/86148764265.pdf
- http://files.ibiza-ferien.de/file/97903597021.pdf
- https://discoverthesky.it/file/20291908302.pdf
- https://goldengrowers.com/wp-content/plugins/super-forms/uploads/php/files/676c234a6817c2edd390c0cfc0d131f3/lozedawoborazizarubevisep.pdf
- https://www.idromeccanicasrl.com/idromeccanicasrl.com/wp-content/plugins/super-forms/uploads/php/files/024bcd95b574f31993265117ee9b5596/19637906234.pdf
- https://jiptv.nl/wp-content/plugins/super-forms/uploads/php/files/josuo6njqj28arrkop121buq39/35475260774.pdf
- http://lambanghieuquangcaogiare.net/vietkiendo/upload/file/26059740802.pdf
- https://apoc.com.au/wp-content/plugins/super-forms/uploads/php/files/611746ef94e19ebcc444c79260eb02f0/jozonojomuv.pdf
- https://akdenizokullari.k12.tr/wp-content/plugins/super-forms/uploads/php/files/1kv77rf58c8mvnu49gt80nkp96/1247799889.pdf
- http://outspokenholland.com/userfiles/fckFile/20210519011731.pdf
- https://expungemyrecordnj.com/wp-content/plugins/formcraft/file-upload/server/content/files/1606d69d42f4be---fijogoloti.pdf
- http://lookupagency.es/wp-content/plugins/formcraft/file-upload/server/content/files/16074d3d2931f1---pozedijevomitubabuxa.pdf
- http://www.canadiantreasurer.com/wp-content/plugins/formcraft/file-upload/server/content/files/160df1a129da60---kegeme.pdf
- https://sakitonus.ru/wp-content/plugins/super-forms/uploads/php/files/1d4de5537d22db53a7da8fcae140b720/kutobow.pdf
- https://useoneconvo.com/wp-content/plugins/super-forms/uploads/php/files/17259f0402e2fa2f4ad2b20bfd30b5ae/kikepexilurixojobojoniwi.pdf
- http://ohappy.org/userData/board/file/gepasupufogizunomuzane.pdf
- https://eghamatkade.com/basefile/eghamatkadecom/files/75983734234.pdf
- https://kildevangen.dk/files/bivofebunomogibovavikoran.pdf
- https://dwitunggaljaya.com/sitefiles/file/posijaxanor.pdf
- http://bhavalaya.org/ckfinder/userfiles/files/pemizovatezuxudupevogelu.pdf
- http://abapaposentados.com.br/wp-content/plugins/formcraft/file-upload/server/content/files/16103ee7603f19---75939404559.pdf
- https://krzczonowice.pl/gfx/file/52054709765.pdf
- https://retentionstudentexperience.com/wp-content/plugins/formcraft/file-upload/server/content/files/160974d9f31be6---84948054330.pdf
- http://www.reroofingbrisbaneqld.com.au/wp-content/plugins/formcraft/file-upload/server/content/files/160a3c60dcc9de---26873172594.pdf
- https://feedproxy.google.com/~r/Uplcv/~3/cv9VXjIrmdE/uplcv?utm_term=horse+riding+tales+gem+generator+no+human+verification
- 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 4
Files carved from inside the sample during analysis.
| Filename | Kind | Source | Size |
|---|---|---|---|
font_00_sfnt_off000118e1.bin06d0f2b9bcb9ac03a821a9ef404814903796e6161f969178939dd8f061a0b762 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x118E1 | 19084 bytes |
font_01_sfnt_off00014a4f.bine009e7b45ee6a59919870ff490ed3636e71bf5e8da11ad4569083f21981c4cc8 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x14A4F | 11080 bytes |
font_02_sfnt_off000163b8.bin9d5144547e0b729630886a3ad3ce48e7da84b0115899dd9c2390406af6f0fecd |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x163B8 | 16092 bytes |
font_03_sfnt_off000178fd.bin9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x178FD | 16792 bytes |
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