MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
This PDF file was flagged by ClamAV as Pdf.Phishing.Trojan and a machine learning classifier indicated a high probability of maliciousness. The heuristics reveal it functions as a link farm, directing users to multiple compromised WordPress sites and disposable hosting domains. The presence of external URIs and link farm characteristics strongly suggests a phishing or malware distribution attempt.
Machine Learning
- Nyx PDF Classifier malicious score 0.9942
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 https://coretry.ru/uplcv?utm_term=the+art+of+banksy+exhibition
- https://ringid.vn/ckfinder/userfiles/files/88821145421.pdf
- https://area34.info/wp-content/plugins/super-forms/uploads/php/files/49smmfehlgbuse65levvd42ib3/vudox.pdf
- http://ramenzoni.eu/userfiles/files/finomupatarijumifozuk.pdf
- https://advicezone.org.uk/wp-content/plugins/super-forms/uploads/php/files/5n98qdoq92nbbvc74qq59s1umc/pepanasigukujeruduba.pdf
- https://www.mercato.co.za/wp-content/plugins/formcraft/file-upload/server/content/files/16085a8d58135d---kiliganiv.pdf
- http://cathyknightwaite.com/ckfinder/userfiles/files/49307921978.pdf
- https://hotelristorantenovecento.it/wp-content/plugins/super-forms/uploads/php/files/165b454fb0c865eba97b29d0251e28b4/vofesu.pdf
- http://furkansigorta.com.tr/wp-content/plugins/formcraft/file-upload/server/content/files/1608d9a755d503---winuketumixamiju.pdf
- http://lisahyatthealth.com/wp-content/plugins/formcraft/file-upload/server/content/files/160bc77e146696---rinoroz.pdf
- http://debden.org/userfiles/file/bagubuwurotepitoni.pdf
- https://alphaveneers.co.uk/wp-content/plugins/super-forms/uploads/php/files/35a17ea47e8ecf2216449fe705ab96c5/zuniwitorululixinuxu.pdf
- http://www.kindytennis.com/wp-content/plugins/formcraft/file-upload/server/content/files/16073eed5c818f---18926379187.pdf
- http://www.thelawchamber.com/wp-content/plugins/formcraft/file-upload/server/content/files/16093d2855e5f7---majoxemofajogo.pdf
- https://costumeworld.com/wp-content/plugins/formcraft/file-upload/server/content/files/16096c5fac00fe---dodogagino.pdf
- http://alisawedding.com/upload/users/files/38334318921.pdf
- https://sumangold.net.vn/wp-content/plugins/super-forms/uploads/php/files/givp1eddn7h4hc0e6cjofitded/bedibufimob.pdf
- http://www.bestlifepolicy.co.uk/wp-content/plugins/formcraft/file-upload/server/content/files/16083626066639---6323485279.pdf
- https://nikken-engineer.jp/export/sd205/www/jp/r/e/gmoserver/8/6/sd0748886/nikken-engineer.jp/fckeditor/upload/file/73543095278.pdf
- https://ehblending.com/wp-content/plugins/super-forms/uploads/php/files/d67832e57c24a5a95a34264ab68068ed/17742095744.pdf
- https://www.arc-welding.co.uk/wp-content/plugins/super-forms/uploads/php/files/ndqlt3dvoeesfhlhr3f2lpqat6/setokevi.pdf
- https://grafitpoint.ru/wp-content/plugins/super-forms/uploads/php/files/acd0c44f5604b332a12a84d8058d0d24/guxiwalowapebimev.pdf
- http://akbmodel.com/wp-content/plugins/formcraft/file-upload/server/content/files/1607e261aa6f7d---2543987053.pdf
- http://stressmanagement-karriere.de/userfiles/file/mabogivogodibu.pdf
- http://www.dnevi-sekretarjev.eu/wp-content/plugins/formcraft/file-upload/server/content/files/1606d4d4c7eae8---59178940816.pdf
- http://audiencefertilization.com/fckeditor/editor/filemanager/connectors/php/userfiles/file/92334070769.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_off0000ff83.bin1bd5860aa390a506e8c37e6e882657bfa67efd89ac1a8d1f4efc3d08921a9e5c |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xFF83 | 17844 bytes |
font_01_sfnt_off00012dd7.bin1dbff362e676b9d695f098ab3e4b2968c1ff98e3cabaf6f2cb9fb3e51c367c24 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x12DD7 | 10676 bytes |
font_02_sfnt_off00014651.bin9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x14651 | 16792 bytes |
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