MALICIOUS
164
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
This PDF contains embedded JavaScript, which is a common technique for exploiting PDF viewers or redirecting users. The numerous external URIs point to compromised CMS upload storage and link farms hosted on disposable domains, indicating a phishing or malware distribution campaign. The ML classifier and ClamAV detection strongly support its malicious nature.
Machine Learning
- Nyx PDF Classifier malicious score 0.9993
Heuristics 7
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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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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://coretry.ru/uplcv?utm_term=can+dogs+eat+raw+shrimp
- https://loskutova.site/wp-content/plugins/super-forms/uploads/php/files/4ec00e81bb5cd80e61e7f4b3c5ae0cf8/vunojapitemozexavez.pdf
- http://mspchicagolaw.com/customer/3/d/9/3d947ad6ce2568d98b832ccf5548371bFile/70871739603.pdf
- http://smithmurdock.com/wp-content/plugins/formcraft/file-upload/server/content/files/16094e61ed32f6---23446319749.pdf
- http://nordicaluminium.ru/userfiles/file/vitegebigudejam.pdf
- https://2greenchicks.com/wp-content/plugins/super-forms/uploads/php/files/4f65dc1e721cc7e3068920835723c469/38612850889.pdf
- https://retentionstudentexperience.com/wp-content/plugins/formcraft/file-upload/server/content/files/160ae02b3b5e98---87328511045.pdf
- http://mko-yug.ru/wp-content/plugins/super-forms/uploads/php/files/2d2408e22522c614f89f172b9ccb6132/febowekeri.pdf
- http://festivaldeliteraturadepereira.com/wp-content/plugins/formcraft/file-upload/server/content/files/16081dfed6ab36---48199960745.pdf
- http://skyrun-arser.com/js/fckeditor/editor/filemanager/connectors/php/connector.php/upfiles/file/2106181653578348097d38y8.pdf
- https://leganordavigliana.it/uploads/file/89455108915.pdf
- http://andreagarciam.com/wp-content/plugins/formcraft/file-upload/server/content/files/160883625dd4a4---lavedisobetot.pdf
- http://sassyissy.com/survey/userfiles/files/14927361487.pdf
- http://escolacaritas.com/wp-content/plugins/formcraft/file-upload/server/content/files/160c3d0759a1d6---zakowasifodonugizibijolo.pdf
- https://www.accidentinjuryalbuquerque.com/wp-content/plugins/super-forms/uploads/php/files/385mhbg6ifll3sll4jtfoh5ku7/xixesigugupinozosivuk.pdf
- https://riverasphotovideo.com/wp-content/plugins/formcraft/file-upload/server/content/files/1607563ac450e8---45538285309.pdf
- https://pet-fashion.ro/mm/file/12310691498.pdf
- https://nationalcardsolutions.com/wp-content/plugins/formcraft/file-upload/server/content/files/1608410bec0b26---1998852294.pdf
- http://togetherwewalkny.org/clients/2/24/2411cc079aa0f0d7fd57f81c6163ecfd/File/81098016959.pdf
- https://frennphotography.com/wp-content/plugins/formcraft/file-upload/server/content/files/160747ebd10c5c---kunizebutevopuzowubu.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_off0000e954.binfd4dcdfc3bce6e3314fe69c4131a40df0f69d3e9bdbfb564660c7c728308c140 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xE954 | 10908 bytes |
font_01_sfnt_off00010245.binb332a3997f86395ddd7962ccc5c19420329e21026d277331df18e06921d486f1 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x10245 | 16760 bytes |
font_02_sfnt_off00012d8b.bin9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x12D8B | 16792 bytes |
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