MALICIOUS
164
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
The PDF contains embedded JavaScript and a significant number of external URIs, many of which point to compromised CMS upload storage or disposable hosting, indicating a link farm designed to redirect users. The ML classifier and ClamAV detection strongly suggest malicious intent, likely related to phishing or malware distribution via these external links.
Machine Learning
- Nyx PDF Classifier malicious score 0.9965
Heuristics 7
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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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Embedded JS stream low PDF_JSPDF references a /JS stream. Generic JavaScript is common in benign forms; specific dangerous APIs are scored by separate rules.
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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://girisimhaber.com/uploads/file/81314785356.pdf
- http://basketaci.cz/UserFiles/File/11206630194.pdf
- https://technok.cz/wp-content/plugins/super-forms/uploads/php/files/b914645fbcec05efdb2f3b62f801200e/befitovux.pdf
- https://www.q-jin.ne.jp/ckfinder/userfiles/files/lidavonu.pdf
- https://idroilektriki.gr/files/file/5334390956.pdf
- http://fjzy18.com/image/uload/files/divebenaxakekol.pdf
- https://www.glasswindowequipment.com/wp-content/plugins/super-forms/uploads/php/files/87d9228b151ac9bfcb1aacd1433b5d1e/zupivigavoruwagi.pdf
- https://mmeasar.com/mmeasarfiles/file/fetetisesop.pdf
- http://getampedmag.com/ckfinder/userfiles/files/87708941489.pdf
- https://zenithoverseas.com/assets/userfiles/files/13456626482.pdf
- http://dekoblickfang.de/userfiles/file/75129335980.pdf
- http://tpt.taipei/asset/uploads/files/20703866513.pdf
- http://www.kzhep.in.ua/wp-content/plugins/super-forms/uploads/php/files/ucsrfj072nplt050n6skefbva5/61049216006.pdf
- https://ccveg.org/wp-content/plugins/super-forms/uploads/php/files/3jtemfvf7202b395213tehijjc/najixapibetu.pdf
- http://www.tahi.hu/ckfinder/userfiles/files/pikilabatapopebepipibuza.pdf
- https://www.sharpeningfactory.com/wp-content/plugins/formcraft/file-upload/server/content/files/1613fe7bf456d9---vapadonotorexafitewofizo.pdf
- https://www.wemservice.com/ckfinder/userfiles/files/jibanimujejefubidiri.pdf
- http://investbuild.ru/var/upload/file/mexowalapemage.pdf
- https://mikepromedia.com/wp-content/plugins/super-forms/uploads/php/files/91d250b6a855c3c036ce93e92c6fec0f/69212150724.pdf
- https://airxps.com/userfiles/files/lejobexod.pdf
- http://fotofolliasanlazzaro.it/userfiles/files/80302434963.pdf
- http://aliancegroup.su/wp-content/plugins/formcraft/file-upload/server/content/files/1614401617ebdf---70978274050.pdf
- https://khambenhxahoi115.com/images/files/nutavoxawixagogoworakifop.pdf
- http://blow-w124.com/js/upload/files/lisedup.pdf
- https://posetili.ru/userfiles/file/pekejotomosi.pdf
- https://feedproxy.google.com/~r/skout/mBVl/~3/Om9ozkHLxGw/uplcv?utm_term=how+to+get+free+rp+from+riot
- 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_off0000b29e.bin0a3318c0850cae4d3c2ab2a73ab2e6f0e54819b87fcb40dd8babec110d077000 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xB29E | 16464 bytes |
font_01_sfnt_off0000dc35.bin9742218bed4d8eaac4aa0f371d7673b1fd0e36ec0e0f2a26a75f216710ffe3b9 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xDC35 | 10296 bytes |
font_02_sfnt_off0000f373.bin9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xF373 | 16792 bytes |
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