MALICIOUS
204
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1203 Exploitation for Client Execution
This PDF document contains embedded JavaScript, which is often used to exploit vulnerabilities or deliver malicious content. The heuristic 'SE_SECURITY_BYPASS' indicates the document explicitly instructs the user to disable security software, a common tactic in phishing and social engineering attacks. The ML classifier and ClamAV detection strongly suggest malicious intent, likely related to phishing or malware delivery.
Machine Learning
- Nyx PDF Classifier malicious score 0.9970
Heuristics 8
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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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Security software disable instruction high SE_SECURITY_BYPASSDocument instructs the user to disable antivirus or security software — unusual for ordinary documents and high-risk in an unsolicited file
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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://cissud.eu/uploads/ck_editor/files/degolitumenojokilodejux.pdf
- http://www.sbawerribee.com.au/wp-content/plugins/formcraft/file-upload/server/content/files/161431a3232230---24394778353.pdf
- http://heathrowairporttaxi.website/userfiles/file/jorabumaxijolidarigas.pdf
- http://mnarch.it/userfiles/files/28054638353.pdf
- http://nanumed.ro/uploads/files/vozojefawovema.pdf
- https://shidoremicrosys.com/media/momuxijifesilago.pdf
- https://djecijagarderoba.me/userfiles/file/42907426250.pdf
- https://geneticapanama.com/userfiles/file/ninule.pdf
- http://jcnjl.com/userfiles/files/vifufunokebuxe.pdf
- http://kaizousha.com/js/upload/files/luzejuredafomi.pdf
- http://brighterhealthcare.co.uk/wp-content/plugins/super-forms/uploads/php/files/3nuch246k366dpucijvr11q0ao/91239281016.pdf
- https://global-product.org/CKEdit/upload/files/9987947600.pdf
- http://umrllc.com/userfiles/files/popoxeku.pdf
- https://inchiriereelicoptere.ro/wp-content/plugins/formcraft/file-upload/server/content/files/1613c13e1031d7---37457727629.pdf
- https://bookmyexcellence.com/bookmyexcellence/js/ckfinder/userfiles/files/soteledisuzuvikisexosas.pdf
- http://fanghsin.com/uploads/files/202109121634233497.pdf
- http://mensagemcrista.com.br/ckfinder/userfiles/files/pefitibifogefolotikixage.pdf
- http://onsijsselstein.nl/userfiles/files/kevativajugejimuzawato.pdf
- https://pilot-nav.socksnbows.com/ckfinder/userfiles/files/62332320476.pdf
- https://www.lokalesichtbarkeit.de/wp-content/plugins/super-forms/uploads/php/files/hhe8k38ulvp4pj8ughj5geh3ik/14183306695.pdf
- https://freedomtampons.com/wp-content/plugins/super-forms/uploads/php/files/2fe329ebc609281cc4fbba35d0021f2c/11054198978.pdf
- https://feedproxy.google.com/~r/Uplcv/~3/cv9VXjIrmdE/uplcv?utm_term=mumu+app+player+free+fire
- 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_off0000e6c6.bin526a99f24d6e4f55e972ac162f6fe8f6dec8acb1bb33a3098cb4011cc982a469 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xE6C6 | 22896 bytes |
font_01_sfnt_off0001222a.bin9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x1222A | 16792 bytes |
font_02_sfnt_off00013a41.bin7cdd6a21dbb7eb31f36f68ed50d7c8809420d0a3f6188bf9b55678f7af2ba810 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x13A41 | 10236 bytes |
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