MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
The file is a PDF identified as malicious by ClamAV and an ML classifier. It contains numerous embedded URLs, many of which point to compromised WordPress sites, suggesting a phishing or redirection attempt. The presence of a link farm on disposable hosting further supports this. No scripts were extracted, but the PDF structure itself facilitates the attack.
Machine Learning
- Nyx PDF Classifier malicious score 0.9991
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://coretry.ru/uplcv?utm_term=1+trillion+in+numbers
- http://www.christinemartin.co.uk/wp-content/plugins/formcraft/file-upload/server/content/files/16087c9ee8d150---39990979683.pdf
- http://www.gesas.it/media/mailinglist/file/11184543831.pdf
- https://akonis.ch/userfiles/files/1549782449.pdf
- http://shahinrouy.com/files/file/kopagikimasaxo.pdf
- http://www.insurancedirectcanada.ca/wp-content/plugins/formcraft/file-upload/server/content/files/1612ba83850102---rafiviwotumotowotedafu.pdf
- http://emilygrilltogo.com/uploads/files/mimovoxunavitolixataso.pdf
- https://youkuvpn.com/upload/files/83924315357.pdf
- https://samarpanbharat.org/trila/userfiles/file/sareninovetiz.pdf
- http://www.wallisandemmanuel.com/wp-content/plugins/formcraft/file-upload/server/content/files/16078a7b43bc76---lodotiporuta.pdf
- http://minutemen-jrotc.com/clients/84940/File/jiwazutosodijuta.pdf
- http://www.rolstoellift.com/wp-content/plugins/formcraft/file-upload/server/content/files/1607e48f89c40f---53788482024.pdf
- https://silverstonedevelopments.com/ckfinder/userfiles/files/33726711666.pdf
- https://ddriu.hu/wp-content/plugins/super-forms/uploads/php/files/0cfaaa0f386d5de0faad4d2609cd5765/89597416788.pdf
- https://acryl-bg.com/userfiles/file/lepabiborozigoboxize.pdf
- https://angem.fr/userfiles/file/manuxajon.pdf
- https://pcetravel.com/files/file/vozigez.pdf
- https://www.igescanada.com/ckfinder/userfiles/files/37274588947.pdf
- https://securitegenerale.tn/userfiles/file/lufagixova.pdf
- https://www.audifonosdoshoydos.com/wp-content/plugins/formcraft/file-upload/server/content/files/160aa03287afe9---ginadosunuxelafubosisem.pdf
- https://senzedigicraft.com/wp-content/plugins/super-forms/uploads/php/files/1046b3364e3c2450cec0cbc30d5e3de5/51144421384.pdf
- http://pospatrans.cz/UserFiles/File/doxeguj.pdf
- https://mrmusicfoundation.org/wp-content/plugins/super-forms/uploads/php/files/v3fqkmdhgmkbiilh7052dhb8ed/33175629141.pdf
- http://www.atrium-tuiles.com/wp-content/plugins/formcraft/file-upload/server/content/files/160b6c73017349---xibuduwul.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_off0000e116.bin9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xE116 | 16792 bytes |
font_01_sfnt_off0000f92d.bin301782793e6ae3aa804113c83a9531298cf843c30967328b7592ce1e8bacac65 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xF92D | 10304 bytes |
font_02_sfnt_off0001105b.bin77422fdd98ba8d099ecd7b21484997495c00f5dd9d77773b3bd7bda5a0db2aeb |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x1105B | 19276 bytes |
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