MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1203 Exploitation for Client Execution
The PDF contains numerous links, many pointing to compromised WordPress sites and disposable hosting, suggesting a phishing or malware distribution scheme. The ML classifier and ClamAV detection strongly indicate malicious intent. The document body is unreadable, but the heuristics and URLs confirm a link farm attack pattern.
Machine Learning
- Nyx PDF Classifier malicious score 0.9975
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://www.physioaktivkramer.de/wp-content/plugins/formcraft/file-upload/server/content/files/16130b03a52dc5---zotafamokefogez.pdf In PDF document text
- http://1-sanya.com/blog_images/blog_/file/107110636.pdfIn PDF document text
- https://ewms.vn/wp-content/plugins/super-forms/uploads/php/files/71okfcasudahcka83p7j2l7gfr/61064149389.pdfIn PDF document text
- http://meteosputnik.ru/userfiles/file/46446615887.pdfIn PDF document text
- http://www.1000ena.com/wp-content/plugins/formcraft/file-upload/server/content/files/16141107697f7f---sujalerewevatazum.pdfIn PDF document text
- http://richardchong.com/userfiles/files/61920133589.pdfIn PDF document text
- http://ilkjv.com/Images/Media/files/dizajutopefuwevomutepog.pdfIn PDF document text
- http://korealabels.com/ckfinder/userfiles/files/sufupagasi.pdfIn PDF document text
- http://jingmingtai.com/filespath/files/20210909142939.pdfIn PDF document text
- http://azseal.net/uploads/userfiles/file/34116359682.pdfIn PDF document text
- https://freedomtampons.com/wp-content/plugins/super-forms/uploads/php/files/8303332d7b63f6c805000cc2fea162e6/dakarinamubabumajudasus.pdfIn PDF document text
- http://daugiavanthienphuoc.com/media/ftp/file/lonoxozipetosinosebetiliw.pdfIn PDF document text
- https://evermoral.hk/upload/file/1631314024.pdfIn PDF document text
- https://salwangurugram.com/files/19440987498.pdfIn PDF document text
- http://borisovhlebprom.by/var/upload/file/tuviweloxagunopepaliv.pdfIn PDF document text
- http://medical-1669.com/userfiles/files/28434750157.pdfIn PDF document text
- https://luxurybaths.marblobaths.ph/app/webroot/img/files/mevideb.pdfIn PDF document text
- http://mikomisushi.com/uploads/files/75405969767.pdfIn PDF document text
- http://bn-biz.com/userData/board/file/94881098030.pdfIn PDF document text
- https://marathonroller.com/userfiles/files/xovubewofag.pdfIn PDF document text
- http://hanabi-la.com/uploads/files/pokikakufozadebenizuponez.pdfIn PDF document text
- https://huangs.tw/uploads/files/202109040031578177.pdfIn PDF document text
- http://asirakademi.com/resimler/files/69758303498.pdfIn PDF document text
- http://learningkey.org/userfiles/70279742032.pdfIn PDF document text
- https://feedproxy.google.com/~r/Uplcv/~3/3CAf4wW3hvY/uplcv?utm_term=best+android+phone+launcher+2020PDF 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_off0000d727.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xD727 | 11004 bytes |
SHA-256: 50d750c9b8b208cd8315df5d3a651cd3946d776d781b38120f9fcc27b2efce03 |
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font_01_sfnt_off0000f0ae.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xF0AE | 16724 bytes |
SHA-256: ca557c8bf0a554df426b6425e91f94008eb2a9951f21e4fdf80034858662fc91 |
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font_02_sfnt_off00011bc4.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x11BC4 | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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