MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
The file was detected as malicious by ClamAV and an ML classifier, indicating a high likelihood of malicious intent. It contains a link farm pointing to numerous domains, many of which are hosted on compromised CMS uploads or disposable hosting, suggesting a phishing or spam distribution scheme. The PDF structure itself is designed to present a large number of links, likely to evade detection and maximize reach.
Machine Learning
- Nyx PDF Classifier malicious score 0.9908
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 http://cyuanmei.com/userfiles/file/60673038884.pdf In PDF document text
- https://www.peeryhotel.com/wp-content/plugins/super-forms/uploads/php/files/b44de3622134992aff8633acc51c492f/16996162353.pdfIn PDF document text
- https://promobryansk.ru/userfiles/files/nikeni.pdfIn PDF document text
- http://ca1970.com/clients/10044/File/65294816032.pdfIn PDF document text
- http://esoftland.com/userfiles/file/gefudoj.pdfIn PDF document text
- https://www.tratedu.net/ssss2018/assets/143ad273/ckfinder/core/connector/php/upload/userfiles/files/5393f39760963c1d8f720a10970efba4.pdfIn PDF document text
- http://stellar.ru/ckfinder/userfiles/files/pudafedokaxenalo.pdfIn PDF document text
- https://aimtronu.org/userfiles/file/tivuxa.pdfIn PDF document text
- http://execdentalclinic.com/uploads/ckfinder/userfiles/files/54015393911.pdfIn PDF document text
- http://ventilatoryzlin.cz/images/file/zebejot.pdfIn PDF document text
- http://capitalclassof1970.com/clients/e/e7/e78cae7b17622b0161c193cbd63f4fd0/File/tojujabarolozope.pdfIn PDF document text
- https://menlopark.com/wysiwygfiles/file/lujobunumifuju.pdfIn PDF document text
- http://www.risingstars.com.tr/wp-content/plugins/formcraft/file-upload/server/content/files/1608672ff5b547---mavol.pdfIn PDF document text
- https://tamtam.com.ua/wp-content/plugins/super-forms/uploads/php/files/401f4a489436427aa752eb4735587e5a/jegub.pdfIn PDF document text
- https://www.18fire.com/wp-content/plugins/super-forms/uploads/php/files/8b3e17f0e337e8288e39fd7d24999c9f/donuzavowelasezodiboja.pdfIn PDF document text
- https://yastudio.net/wp-content/plugins/super-forms/uploads/php/files/1dcae9c34ab0b89901ecc2ff37999d63/votegeka.pdfIn PDF document text
- http://dagmare.de/userfiles/file/jeron.pdfIn PDF document text
- https://hamasataccessories.com/userfiles/files/lemet.pdfIn PDF document text
- http://beachhigh65.com/clients/879402/File/zaselanemozuj.pdfIn PDF document text
- http://jerseybankruptcylaw.com/customer/3/d/9/3d947ad6ce2568d98b832ccf5548371bFile/13304519410.pdfIn PDF document text
- http://moneymaker-gold.de/files/sipopilavegakola.pdfIn PDF document text
- http://taihegas.com/filespath/files/20210808014306.pdfIn PDF document text
- http://www.itbaloch.com/wp-content/plugins/formcraft/file-upload/server/content/files/160988c2eba2e3---noxororoxiruxa.pdfIn PDF document text
- http://veivel.com/userfiles/file/zixasarakufamibu.pdfIn PDF document text
- http://aarogyamedico.com/userfiles/file/83542881153.pdfIn PDF document text
- http://www.asslar.de/downloads/lofibalawutanifatufus.pdfIn PDF document text
- https://feedproxy.google.com/~r/skout/mBVl/~3/S30rS-6n6vg/uplcv?utm_term=convert+epub+to+pdf+best+softwarePDF link annotation
- http://www.w3.org/1999/02/22-rdf-syntax-ns#In PDF document text
- http://purl.org/dc/elements/1.1/In PDF document text
- http://ns.adobe.com/pdf/1.3/In PDF document text
- http://ns.adobe.com/xap/1.0/In PDF document text
- http://ns.adobe.com/xap/1.0/mm/In PDF document text
- http://ns.adobe.com/xap/1.0/rights/In PDF document text
- http://dejavu.sourceforge.netIn PDF document text
- http://dejavu.sourceforge.net/wiki/index.php/LicenseIn PDF document text
Extracted artifacts 3
Files carved from inside the sample during analysis.
| Filename | Kind | Source | Size |
|---|---|---|---|
font_00_sfnt_off0000c2dc.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xC2DC | 10776 bytes |
SHA-256: 47ea895b41236777c8418a8a0ed26da627814f26d83013023d431d10b77b9241 |
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font_01_sfnt_off0000dbb4.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xDBB4 | 16616 bytes |
SHA-256: e7e874cffe56e1e1cd10fa691cd70d787fd0b1f7f113317964a2241040a2b1a9 |
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font_02_sfnt_off0001059f.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x1059F | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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