MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1203 Exploitation for Client Execution
This PDF file was flagged by multiple heuristics and a machine learning classifier as malicious, with ClamAV identifying it as a phishing trojan. The document contains numerous links to external websites, many hosted on compromised CMS uploads or disposable domains, suggesting a link farm or phishing lure. The primary attack pattern involves directing users to potentially malicious external sites.
Machine Learning
- Nyx PDF Classifier malicious score 0.9956
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://infrive.ru/uplcv?utm_term=how+to+add+data+to+a+dataframe+in+r
- http://cokhibaosang.com/media/ftp/file/rukizemijevixi.pdf
- http://aaexpansionjoint.com/wp-content/plugins/formcraft/file-upload/server/content/files/160c1ce6bcbc22---5648879145.pdf
- https://www.lesson-online.org/wp-content/plugins/super-forms/uploads/php/files/1mp82iqv06eqel0rlhq7b3vup7/24940223082.pdf
- http://chandigarhdatarecovery.com/files/file/32222782623.pdf
- http://bhk-aindling.com/userfiles/files/3479046164.pdf
- https://www.etbsupplies.com/wp-content/plugins/formcraft/file-upload/server/content/files/160ac255bd2574---ligemiv.pdf
- http://vtracauto.com/wp-content/plugins/formcraft/file-upload/server/content/files/160a96b62ee33c---40294392131.pdf
- https://messianic.live/wp-content/plugins/super-forms/uploads/php/files/566415277d7c9d30de4fe86845d1b14e/4744388050.pdf
- https://mfdesign.hu/files/file/77678799423.pdf
- https://moniimpex.com/wp-content/plugins/formcraft/file-upload/server/content/files/160a9d55eefbb2---55476507481.pdf
- https://www.carlosfunes.es/wp-content/plugins/formcraft/file-upload/server/content/files/160c6675b83cd8---86190912855.pdf
- http://www.pilonidalsinus.gen.tr/wp-content/plugins/formcraft/file-upload/server/content/files/1606c8dcfd8079---97566297066.pdf
- https://relaxationplusmn.com/wp-content/plugins/super-forms/uploads/php/files/d04e16bdf6cfd21c646339abe7e5f1e6/19569855302.pdf
- http://lubrifianti-auto.ro/files/file/19742147515.pdf
- http://phuocthuan.vn/images/pic/file/jemivolepezarurogimo.pdf
- https://www.rowtheerne.com/wp-content/plugins/super-forms/uploads/php/files/224e6a5ad5f0a900bf326848d4098698/87872087631.pdf
- http://www.gaviprintpack.com/wp-content/plugins/formcraft/file-upload/server/content/files/160c2d314bec16---14693969901.pdf
- https://artenika.pl/fck/file/65776095936.pdf
- http://www.deopendeur.org/imgUser/file/dulojipiperamubuwegidopew.pdf
- https://www.darrellstuckey.com/wp-content/plugins/formcraft/file-upload/server/content/files/1608cc9bf52585---61579498592.pdf
- https://stellabakingcompany.com/wp-content/plugins/formcraft/file-upload/server/content/files/1608c8bf6e3f1b---76836467747.pdf
- http://closehorses.com/userfiles/file/10288611819.pdf
- https://alamansyria.com/userfiles/file/66733501199.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_off0000b792.bin9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xB792 | 16792 bytes |
font_01_sfnt_off0000cfa9.bin97fe5b6232ad9d0b680769d8a42d5050a4f503620a3f0bf559075c3674085225 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xCFA9 | 10380 bytes |
font_02_sfnt_off0000e719.bine8cba19b6760d519b0041766f322102e089ddd5b6083e06d5e8dd934efd1cfb9 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xE719 | 15500 bytes |
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