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 an embedded JavaScript stream and numerous external URIs, many pointing to compromised WordPress sites, indicates a likely phishing or redirection attempt. The link farm structure suggests an effort to obscure the final malicious destination.
Machine Learning
- Nyx PDF Classifier malicious score 0.9975
Heuristics 7
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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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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://bokseinstituttet.dk/wp-content/plugins/formcraft/file-upload/server/content/files/161119658c3e4d---56337745156.pdf
- https://peintures-descours.fr/fichier/files/kogunarufuzuwelomiboji.pdf
- http://midiabyz.com/wp-content/plugins/super-forms/uploads/php/files/410bfaf8a0db26ca547fc91ad31b96f2/donegisubiwiso.pdf
- http://cocoal.com/uploads/file/71693972327.pdf
- https://www.booster-p.com/wp-content/plugins/formcraft/file-upload/server/content/files/160a7dfa5f0818---68767854109.pdf
- https://www.alertgy.com/wp-content/plugins/super-forms/uploads/php/files/f54b72be4c7feeda592a27869e86f97c/bakeniwagabenudum.pdf
- https://adm.allianceflooring.net/wp-content/plugins/super-forms/uploads/php/files/0b5143c5871bc2c58a4499f4c28c4d48/43925807852.pdf
- http://andreaslasnik.com/data/files/wupulasazidogo.pdf
- http://acetuitioncentre.com.au/wp-content/plugins/formcraft/file-upload/server/content/files/1608fbcceceee1---sezowibo.pdf
- http://becro-plast.hr/wp-content/plugins/formcraft/file-upload/server/content/files/160b6751438fac---guvamazesugevupinajalo.pdf
- http://shuimotongyuan.com/userfiles/file/75073670391.pdf
- https://investainternational.com/wp-content/plugins/formcraft/file-upload/server/content/files/1607d59d25f16e---jopasikemusadodozuzu.pdf
- http://ndt-ultratech.com/files/tomojutesuvotuwopefokasi.pdf
- https://www.ferienhof-schneider.de/wp-content/plugins/formcraft/file-upload/server/content/files/160c54a536010b---27095791985.pdf
- http://rolmech-strzelno.pl/Upload/file/30691996331.pdf
- https://hankilfood.com/upfile/files/39724997220.pdf
- https://confidence-ist.com/ckfinder/userfiles/files/44163131312.pdf
- http://sbnjl.com/userfiles/files/rotirowetununenemuwexatuz.pdf
- http://totalfinance.ca/wp-content/plugins/formcraft/file-upload/server/content/files/1612379a3e6188---wigixelebefunirud.pdf
- https://konferencii.ru/js/ckfinder/userfiles/files/modirenajikukififude.pdf
- http://angeladaniel.de/uploads/files/tedewedufikaludano.pdf
- http://rickgrisolia.com/userfiles/files/napedidowitigepudoge.pdf
- http://autoscuolecasetta.it/userfiles/files/lanujexagotuvetojataj.pdf
- https://giverny-bkk.com/upload/files/vesujopa.pdf
- http://elenasteele.com/wp-content/plugins/formcraft/file-upload/server/content/files/1610e2dea4feaf---87767555941.pdf
- https://feedproxy.google.com/~r/Uplcv/~3/PmAiG5ZyT-k/uplcv?utm_term=keynote+advanced+pdf+vk
- 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_off0000bbd9.bin9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xBBD9 | 16792 bytes |
font_01_sfnt_off0000d3f0.bin520dab7e660038a7650c7e077ad5d6957ca0040fd80109ce2d3c35ea6490129d |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xD3F0 | 10468 bytes |
font_02_sfnt_off0000ebe9.bin066e0973a9766fa72bc6fb1ef83903f4ed26926d86cecf53e02c939eceea18fd |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xEBE9 | 16268 bytes |
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