MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
This PDF file was detected as malicious by ClamAV and an ML classifier, indicating a high likelihood of malicious intent. The heuristics reveal it functions as a link farm, directing users to multiple external websites, some hosted on compromised WordPress installations. The presence of external URIs and link farm characteristics suggests a phishing or malware distribution campaign, likely initiated via spearphishing attachment.
Machine Learning
- Nyx PDF Classifier malicious score 0.9966
Heuristics 6
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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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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://infrive.ru/uplcv?utm_term=ford+fiesta+titanium+x+2016+manual
- http://lushexperiences.com/wp-content/plugins/formcraft/file-upload/server/content/files/1609071a5b3f08---9241664968.pdf
- https://astefin.ro/ckfinder/userfiles/files/tunikatuzakoni.pdf
- https://an-professional.ru/img/files/file/levorepuxujowiwatine.pdf
- http://www.sloepverhuur-debiesbosch.nl/upload/files/49292168684.pdf
- https://www.azembay.com/wp-content/plugins/super-forms/uploads/php/files/l6o31v9jndabupg4v3ioblh2e2/vezimerozezebenikalak.pdf
- https://ags-car.com/upload/files/dolikajuwis.pdf
- https://414movement.com/wp-content/plugins/super-forms/uploads/php/files/b3d121080a23ac5ca23313ea5fa818a7/82828804574.pdf
- http://www.stallionreadymix.co.za/wp-content/plugins/formcraft/file-upload/server/content/files/1606e9b3f72616---vebisemasajudewaf.pdf
- http://instalater-macecek.cz/klienti/devel/sneznerolby.cz/ckfinder/userfiles/files/40533621455.pdf
- http://auto-spec.ca/fck/file/rezazaze.pdf
- https://weddingitaly.jp/images/file/tomuv.pdf
- http://carsonpokebar.com/uploads/files/83247134436.pdf
- https://vaytieudungtragop.com.vn/wp-content/plugins/super-forms/uploads/php/files/4k87v35vb6lphfj81k7h61v557/savubijiw.pdf
- http://mas.vacations/wp-content/plugins/formcraft/file-upload/server/content/files/1608c3b3239536---97149209722.pdf
- https://nationalcardsolutions.com/wp-content/plugins/formcraft/file-upload/server/content/files/160ca6275755de---8559625592.pdf
- http://bodegaadrover.com/userfiles//imagenes/86987835222.pdf
- https://www.shopveriamici.com/wp-content/plugins/super-forms/uploads/php/files/1ku8o48f6nnhgfp9tpdpo61ro7/setuvezenu.pdf
- http://elcwma.com/customer/3/d/9/3d947ad6ce2568d98b832ccf5548371bFile/xobademezozujinusep.pdf
- https://www.chauffeur-prive-nice.fr/wp-content/plugins/formcraft/file-upload/server/content/files/16080a05e055b8---pusimo.pdf
- https://firsatoyun.com/calisma2/files/uploads/27407280099.pdf
- http://crmrealty360degree.in/ci/userfiles/files/riwujirukivonaxivoruli.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_off000104b1.bina223a39bff4a4c8362f6381afc2f7db460e09505b4e50b9c736811d9fe428027 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x104B1 | 18652 bytes |
font_01_sfnt_off000135db.bin9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x135DB | 16792 bytes |
font_02_sfnt_off00014df2.bindc5e8f3e9de94daa7044c3f71cac6f526ab158ea4c50dc994c9a4bcced837b23 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x14DF2 | 11156 bytes |
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