MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1203 Exploitation for Client Execution
The PDF file contains numerous embedded URLs, many of which point to potentially compromised websites or disposable hosting. Heuristics indicate this is a link farm, with a high ML score and ClamAV detection confirming malicious intent. The primary goal appears to be redirecting users to other malicious documents, likely as part of a phishing or malware distribution campaign.
Machine Learning
- Nyx PDF Classifier malicious score 0.9982
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 http://patroha.hu/file/kematugobegasoxe.pdf
- http://aerotherminsulation.com/userfiles/file/wekemiwisidugiririwewuna.pdf
- https://costarica4d.com/contents/files/93902330345.pdf
- http://mobil-tech.com/files/lobegefafifeziwosivo.pdf
- http://constructionone.com.br/wp-content/plugins/formcraft/file-upload/server/content/files/1614ce6da62e5a---88512243853.pdf
- https://cryptobasics.biz/uploads/files/39757589914.pdf
- http://ltpbetel.ro/userfiles/file/zarekimigefoxipebok.pdf
- http://daglichtfilters.nl/ckfinder/userfiles/files/85996432366.pdf
- http://www.iycadana.org/wp-content/plugins/super-forms/uploads/php/files/picm6o8r88avrvrcpmq5tg5e51/bojosolug.pdf
- http://vividconcept.in/userfiles/file/foxufadamob.pdf
- https://www.yoursurveysurveyors.co.uk/wp-content/plugins/formcraft/file-upload/server/content/files/16145745d84ba1---miwijinenulasot.pdf
- http://unitekinfostructures.com/userfiles/file/96640640196.pdf
- http://esoftland.com/userfiles/file/99125598967.pdf
- https://hotlinepro.in/admin/userfiles/file/77954685909.pdf
- http://miet-boot.ch/images/uploadedimages/file/zegemodovoliwizoziwawax.pdf
- http://net-marketing.hu/images/files/rexurilure.pdf
- http://zeci.nl/im/image/19330436610.pdf
- http://invismortgagebroker.com/images/file/lawoneniwaxipu.pdf
- http://tourhong.com/FileData/ckfinder/files/20210901_A12F8693CB4E2FCC.pdf
- http://www.thunderesp.com/ckfinder/ckfinder.htmlfiles/zipemagikijitazo.pdf
- https://drproperty.in/userfiles/file/1097390265.pdf
- http://media-production.net/admin/ckfinder/userfiles/files/botimajijorof.pdf
- https://feedproxy.google.com/~r/Uplcv/~3/DOqCt-cVA4I/uplcv?utm_term=games+for+windows+7+ultimate+32+bit
- 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_off0000b09c.bin985367ab13fae04357d4871945d6c6d64ddabbb0d325d8c566c8608b7b9d3787 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xB09C | 14712 bytes |
font_01_sfnt_off0000d5c6.bin9bb00ec0aa255a9a35f185f1bd63a5b2c5eb2844f70d86c974056f7dcbda0530 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xD5C6 | 11220 bytes |
font_02_sfnt_off0000f045.bin9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xF045 | 16792 bytes |
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