MALICIOUS
164
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
This PDF file was flagged by multiple heuristics, including a critical ClamAV detection for 'Pdf.Phishing.Trojan'. The presence of embedded JavaScript and a link farm structure suggests an attempt to redirect users to malicious sites. The document body is heavily obfuscated, but the heuristics indicate a phishing or malware distribution lure.
Machine Learning
- Nyx PDF Classifier malicious score 0.9978
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://huntic.ru/uplcv?utm_term=poly+enzymatic+digestant
- https://bczenekar.hu/files/file/sojojorodebugik.pdf
- http://www.sunarsurdurulebilir.com/wp-content/plugins/super-forms/uploads/php/files/611lfjpjsgs7phaq6urbqf1li0/naraxapudeditetudawuwu.pdf
- http://abwsalisbury.com/uploads/files/gerebibuxilanixirevafal.pdf
- http://geodez.com/pliki/file/36119200071.pdf
- https://www.osteopathe-montpellier-sud.fr/ckfinder/userfiles/files/6334775194.pdf
- http://www.lukoilmarine.com/ckfinder/userfiles/files/17714505499.pdf
- http://uniontsg96.ru/admin/ckfinder/userfiles/files/mufezixowawemej.pdf
- http://orderkiwicafe.com/uploads/files/19375980168.pdf
- http://nhahanghienminh68.com/upload/files/97754086034.pdf
- http://www.elsecretodelolivo.com/wp-content/plugins/formcraft/file-upload/server/content/files/1613b15b52190d---zesunukokobitojuwap.pdf
- https://inprovitbrasil.com/ckfinder/userfiles/files/73242755775.pdf
- http://asv-solnice.cz/_files/file/17238157303.pdf
- http://s8radziejowice-paszkow.pl/userfiles/file/80285427448.pdf
- http://studionegro.net/userfiles/files/1023059622.pdf
- https://corcreation.twbiz.me/data/fckeditor/files/20210929_045021.pdf
- https://apaman.ti-am.jp/js/ckfinder/userfiles/files/52768190568.pdf
- https://cli-kh.com/uploads/files/202109280644198156.pdf
- https://kodeac.com/wp-content/plugins/super-forms/uploads/php/files/6bs8vtk4qij9544q84p10ptnh4/muputonusufawibexami.pdf
- http://interstyle.org/content/xuploadimages/file/54015737383.pdf
- http://nousgarage.com/userfiles/file/rogupolo.pdf
- http://4seasonstours.in/userfiles/file/6588844197.pdf
- https://samsungklimamodelleri.com/upload/ckfinder/files/lajanududef.pdf
- https://hotlinepro.in/admin/userfiles/file/fupogojatuzisosemawis.pdf
- 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_off0000b1f8.bin5424ad11236520ba72a8bd8acbd1f785b104a6fa04fe33ab9356e8108ad43b94 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xB1F8 | 10788 bytes |
font_01_sfnt_off0000caac.bin9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xCAAC | 16792 bytes |
font_02_sfnt_off0000e2be.bin868c8de6a227bec97d3051dd5ffd4ea14d67576ae829da98e50c01bc0822849a |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xE2BE | 16772 bytes |
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