MALICIOUS
180
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
This PDF file contains embedded JavaScript and a link farm pointing to multiple external URLs, indicating a malicious intent to redirect users. The heuristics suggest it's a phishing or malware distribution lure, likely delivered as a spearphishing attachment. The ML classifier and ClamAV detection strongly support its malicious nature.
Machine Learning
- Nyx PDF Classifier malicious score 0.9951
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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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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Urgency / deadline lure low SE_URGENCY_LUREDocument contains urgency or deadline language ('account will be terminated', 'action required within 24 hours', etc.) — useful context, but low-signal without other findings
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Visual download / call-to-action button lure low SE_DOWNLOAD_BUTTONDocument contains a call-to-action phrase ('Click here to download', 'Download Now', etc.) — low-signal unless other findings point to a malicious workflow
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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://infrive.ru/uplcv?utm_term=my+hero+academia+heroes+rising+full+movie+eng+dub
- http://perechen-izdaniy.ru/js/ckfinder/userfiles/files/vokeriwomigenawifu.pdf
- https://echipamente-scule.ro/userfiles/file/nifibe.pdf
- http://www.jesuseslaroca.org/wp-content/plugins/formcraft/file-upload/server/content/files/1613c7b0d84e23---limusozenumorawulawiwukeb.pdf
- https://joefairless.com/wp-content/plugins/super-forms/uploads/php/files/49a1702b7fc1895d8a3da506261b473c/26410331423.pdf
- http://fantalife.nl/userfiles/file/4380235329.pdf
- http://tzoetemondje.be/uploads/files/gamelepegexakila.pdf
- http://eros-arena.name/eros/userfiles/file/64512980937.pdf
- http://somsit.com/ckfinder/userfiles/files/56873272524.pdf
- http://chenruichem.com/upload/files/45210725854.pdf
- http://www.1000ena.com/wp-content/plugins/formcraft/file-upload/server/content/files/1613b0d2ff0c76---nivumobubutijovin.pdf
- http://portaldeaquidauana.com.br/ckfinder/userfiles/files/43596070472.pdf
- http://weiddy.com/uploads/files/202109091527145262.pdf
- http://provia-events.de/pics/fotos/1/file/27829011640.pdf
- https://nstoplana.rs/ckfinder/userfiles/files/58898658743.pdf
- http://esllearningbydesign.com/app/webroot/files/file/24088355903.pdf
- https://nsstore.mx/ckeditor/ckfinder/archivossubidos/files/77533624188.pdf
- http://bodegaadrover.com/userfiles/imagenes/27413751356.pdf
- https://himalayanespresso.com/espresso_ckfinder/userfiles/files/82633551766.pdf
- http://ytlcases.com/userfiles/file/26645887646.pdf
- https://home18.ru/wp-content/plugins/super-forms/uploads/php/files/8ec6817870c291d1c5ae4b4a99eb802d/mumuxeneril.pdf
- https://mercerapparelss.com/userfiles/files/12167259808.pdf
- https://pre-www.bridge-college.com/uploaded/ckeditor/files/7714109442.pdf
- https://colegiumaniucarei.ro/ckfinder/userfiles/files/52093244655.pdf
- http://as-eng.biz/userfiles/file/99519632661.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_off0000b89d.binb43d92cf50ea0f59b8a79061b2e404116be3fc9efedd4a77e244e6a22217c6df |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xB89D | 11236 bytes |
font_01_sfnt_off0000d296.bin9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xD296 | 16792 bytes |
font_02_sfnt_off0000eaa8.bin608f93468be760e7a3295a3240d965cbec781dfd34cb1635968e50a5c134ce8a |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xEAA8 | 17504 bytes |
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