MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1203 Exploitation for Client Execution
This PDF was flagged by multiple heuristics as malicious, including a critical ClamAV detection and an ML classifier. It contains a link farm pointing to compromised and disposable domains, suggesting a phishing or malware distribution attempt. The presence of external URIs and link farms indicates an attempt to redirect the user to malicious content.
Machine Learning
- Nyx PDF Classifier malicious score 0.9975
Heuristics 6
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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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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://medvor.ru/uplcv?utm_term=clock+app+lock+download
- http://fra2ange.it/userfiles/files/tadudugen.pdf
- https://europacreativaeuskadi.eu/files/galeria/files/73690900340.pdf
- https://tasleemdubai.com/userfiles/files/68505885107.pdf
- http://hingliltd.com/userfiles/ninakapefim.pdf
- https://www.hs-hofgastein.salzburg.at/ckfinder/userfiles/files/paxunikut.pdf
- http://www.feniuniversity.edu.bd/app/webroot/ckfinder/userfiles/files/30601599477.pdf
- http://mygiftltd.com/userfiles/file/jikorurejuv.pdf
- http://tokyoto.pl/UserFiles/file/zorojadamufajivabopu.pdf
- http://fvv-hohenfelde.de/sites/default/files/files/45812951428.pdf
- https://greenbins.ca/ckfinder/userfiles/files/digasap.pdf
- http://xageunion.com/userfiles/file/61290623634.pdf
- http://spielundlicht.de/content_provider/documents/files/34941365150.pdf
- https://www.18fire.com/wp-content/plugins/super-forms/uploads/php/files/7db26fa2cf0d36a9e7768b3d9f0d43f7/6022606022.pdf
- http://hainfelderteich.at/6490916768.pdf
- https://nepalonetours.com/userfiles/files/vanibilalos.pdf
- https://redac.ch/upload/dunerutode.pdf
- http://k1a.ru/images/files/file/39035359127.pdf
- http://meuble-tunisie.com/userfiles/file/40809978910.pdf
- http://www.ih-consultant.com/ckfinder/userfiles/files/goxajilodavesodapawiwemed.pdf
- https://khabul.mn/mmpa/userfiles/files/wojazejoginirejofovibe.pdf
- http://baharemadinah.com/wp-content/plugins/formcraft/file-upload/server/content/files/1614b620fec3cf---josizexafomejevimibo.pdf
- https://www.sacproblemleri.com/wp-content/plugins/formcraft/file-upload/server/content/files/161301f5f0ec05---bilonogisivuv.pdf
- http://yaqeen-eg.com/userfiles/file/67466302427.pdf
- http://www.1000ena.com/wp-content/plugins/formcraft/file-upload/server/content/files/1613f32a2b214b---bizevulepulekinuwapuj.pdf
- http://wahluenfty.com/userfiles/tifotonuwezajegepiku.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_off0000b445.bin7a5fcd224d62b2e60c862f0c91fe44216290728c54cf9e2b7e0d74b61682ab8c |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xB445 | 10128 bytes |
font_01_sfnt_off0000cb08.binf119bb523642b8e39943054fc1dffd8cd334bd9631d880bfa8e9db696abdf75e |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xCB08 | 16240 bytes |
font_02_sfnt_off0000f442.bin9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xF442 | 16792 bytes |
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