MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
This PDF file was flagged by multiple heuristics and a machine learning classifier as malicious, with ClamAV identifying it as Pdf.Phishing.Trojan. The file contains a link farm pointing to numerous compromised websites, suggesting an attempt to redirect users to malicious content. The presence of PDF_SEO_DISPOSABLE_LINK_FARM and PDF_COMPROMISED_CMS_UPLOAD_LINK_FARM heuristics indicates a sophisticated effort to obscure the true destination of the links.
Machine Learning
- Nyx PDF Classifier malicious score 0.9992
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://dlmberatung.ch/userfiles/files/31208744216.pdf
- http://drvision.org/wp-content/plugins/formcraft/file-upload/server/content/files/160881da9629d5---wibepefetenufadibamunezu.pdf
- http://tanriovermensucat.com/uploads/genel/files/67531233108.pdf
- https://mamproducciones.es/wp-content/plugins/formcraft/file-upload/server/content/files/160785c24ac45f---kavurapodaxel.pdf
- http://wawa757.com/uploads/files/40125251096.pdf
- https://weinquartier.at/wp-content/plugins/super-forms/uploads/php/files/3672ca493a18d760298dd70a4274c478/71512825716.pdf
- http://trainternational.in/wp-content/plugins/formcraft/file-upload/server/content/files/160c696e63740a---bumuwadinej.pdf
- https://broadstripe.com/wp-content/plugins/super-forms/uploads/php/files/b8b8526271bce261374902b850587a8d/226427597.pdf
- https://adbadog.com/wp-content/plugins/super-forms/uploads/php/files/cc63a3c6b499c3567b0b2a4dcac9d946/88253521005.pdf
- http://asesoriagarpe.com/wp-content/plugins/formcraft/file-upload/server/content/files/160a15ffbcb814---62080509937.pdf
- http://marthomaiticherukole.com/userfiles/file/1672799029.pdf
- https://nuevocoach.co.uk/wp-content/plugins/super-forms/uploads/php/files/3180b41c80b5dbf97ca2200ee6d71460/20591328461.pdf
- http://www.nuricomuvakfi.org/wp-content/plugins/super-forms/uploads/php/files/ldiujdoru79hf5vj02rvsug9a4/49365996979.pdf
- http://www.klpreschool.com/wp-content/plugins/formcraft/file-upload/server/content/files/16098546c892ac---resutovowozene.pdf
- http://paintingservicesonline.ca/wp-content/plugins/formcraft/file-upload/server/content/files/160773e9af1923---josebukirepokafa.pdf
- http://dtcguild.org/clients/80367/File/werabi.pdf
- https://nepalipublisher.com/ckfinder/userfiles/files/2903531351.pdf
- https://urbanlivin.lu/userfiles/files/86021403613.pdf
- https://expeditions-travel.com/wp-content/plugins/formcraft/file-upload/server/content/files/16099f5800e3e8---zazaxukodawobitivinukineg.pdf
- https://taxiparga.com/wp-content/plugins/super-forms/uploads/php/files/dc2d58769e78c97aade65c8cfda35bfb/89780850829.pdf
- https://feedproxy.google.com/~r/Uplcv/~3/BvfzZFkJO3s/uplcv?utm_term=scrapie+disease+of+cattle+is+caused+by
- 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_off0000f47c.bin9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xF47C | 16792 bytes |
font_01_sfnt_off00010c8e.bin65d3e23f15d339febe94204ba7b7a131b32a2fff89d76c01cf62ff7f19539d31 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x10C8E | 19032 bytes |
font_02_sfnt_off00013cd8.bina8e4bb60c558455c210a843f39e8df0119adda6df4b575f8e29dc07e26493606 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x13CD8 | 10940 bytes |
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