MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1204.002 Malicious Link
The PDF file was flagged by multiple heuristics as malicious, including a critical ClamAV detection and an ML classifier. The heuristics indicate the PDF functions as a link farm, pointing to numerous URLs hosted on potentially compromised or disposable domains. This suggests an attempt to redirect users to malicious content or phishing sites.
Machine Learning
- Nyx PDF Classifier malicious score 0.9905
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://dzwigipoznan.pl/userfiles/file/sapewak.pdf
- http://cuacuonnhaxuongbinhduong.com/upload/files/68958525468.pdf
- http://www.herbertvanderbrugghen.nl/draft/30039555392.pdf
- http://jp-photo.cz/soubory/files/mejabumivokolugafovomowi.pdf
- http://neuragen.ca/wp-content/plugins/formcraft/file-upload/server/content/files/16081f30382ea3---39433201426.pdf
- http://noithatphathuy.com/Images_upload/files/71011958277.pdf
- https://shieldtech.cz/ckfinder/userfiles/files/veloxoku.pdf
- https://www.tifdip.com/wp-content/plugins/formcraft/file-upload/server/content/files/16100790c00498---xudefigiwuxixepuve.pdf
- http://www.examnotice.in/uploads/files/revejojinoxupodakuka.pdf
- http://campingwithconvenience.com/files/files/39571052328.pdf
- https://terminarz.online/kosmetyczka/krakow/files/mozisibifuxasi.pdf
- https://www.reparaciondebomba.com.ar/wp-content/plugins/super-forms/uploads/php/files/1k0oafh3ae3370k0viq41ehi56/86296589413.pdf
- http://adria-ex.com/images/blog//file/gakuxusa.pdf
- http://tungalag.mn/userfiles/files/tarini.pdf
- https://brawlcall.com/ckfinder/userfiles/files/93792678740.pdf
- http://asokmontridental.com/userfiles/file/duvakabuwagof.pdf
- http://avonsteel.com/UserFiles/file/98965701488.pdf
- http://polskienarty.pl/data/aktualnosci_imgs/file/45776754700.pdf
- http://mezon.jp/userfiles/file/40528077873.pdf
- https://sakitonus.ru/wp-content/plugins/super-forms/uploads/php/files/72f3f403008d27523ca462aba3c793f5/polipimevedixo.pdf
- http://www.petercar0937494634.com/upload/img/files/8559516347.pdf
- http://universalgroupautos.com/files/others/75430129675.pdf
- https://www.physioaktivkramer.de/wp-content/plugins/formcraft/file-upload/server/content/files/160dd95b2114d1---64796258679.pdf
- http://abacusnancy.com/userfiles/file/tuxutusomafofiverakajijiw.pdf
- https://tkpmission.org/wp-content/plugins/formcraft/file-upload/server/content/files/16089b1efb3fad---79913915109.pdf
- http://gingerwooddesign.com/wp-content/plugins/formcraft/file-upload/server/content/files/16083256637fbd---20473981084.pdf
- https://sharzh-ufa.ru/wp-content/plugins/super-forms/uploads/php/files/bc162b151b35b3d0bf0190f18a3c01f9/pojokokab.pdf
- https://feedproxy.google.com/~r/skout/mBVl/~3/ngfLrbzwjls/uplcv?utm_term=pediatric+advanced+life+support+2020+guidelines
- 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_off0000fb82.bin9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xFB82 | 16792 bytes |
font_01_sfnt_off00011394.binef2660597e0f38e1b192cf9066317cfabbf7843f0914b558da064fa3e4737bf5 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x11394 | 17192 bytes |
font_02_sfnt_off000140d5.binc7ebdb77ca0d708dda806024d1cb65358515ec87cc7e1471e2e7acf68a6ce233 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x140D5 | 11204 bytes |
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