MALICIOUS
164
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
The PDF document contains embedded JavaScript and a significant number of external links, many of which point to compromised WordPress sites or disposable hosting. These links are likely part of a link farm designed to redirect users to phishing pages or download further malicious content. The ClamAV detection and ML classifier strongly indicate malicious intent.
Machine Learning
- Nyx PDF Classifier malicious score 0.9996
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://hps-gruppe.com/wp-content/plugins/super-forms/uploads/php/files/fja11gcp17ruv71l18stebdrm0/46798881890.pdf
- http://umrllc.com/userfiles/files/raziz.pdf
- http://totaleclipsenv.com/wp-content/plugins/formcraft/file-upload/server/content/files/16085d07627768---83755235325.pdf
- http://amadpich.com/userfiles/file/6591541578.pdf
- http://jhsclassof63.com/clients/c/c8/c8cc7cee7579ddcd469b669c0eb172d8/File/77538079100.pdf
- http://shsuorui.com/uploadfiles/fckeditor/20210716/file/16264623808567.pdf
- https://chachachat.info/js/ckfinder/userfiles/files/zipivufivi.pdf
- https://actioncoach.com.my/wp-content/plugins/formcraft/file-upload/server/content/files/16091fa704b143---80009837346.pdf
- https://divorcioconsensual.com.br/wp-content/plugins/super-forms/uploads/php/files/f7d2450ca25af9a2032545780c3150e9/dusezudij.pdf
- http://www.alquilerbares.com.ar/wp-content/plugins/formcraft/file-upload/server/content/files/1606c87fa328fa---87929792805.pdf
- https://www.reachcast.ca/wp-content/plugins/super-forms/uploads/php/files/0452bf985080f693a06635ed19f9afb6/37301546099.pdf
- http://ziepniekkalns.lv/wp-content/plugins/formcraft/file-upload/server/content/files/160717117aab65---tidetemolegiv.pdf
- http://xn----8sbpvg0afdbe.xn--p1ai/wp-content/plugins/super-forms/uploads/php/files/hkq4rkm2up256tth4hno2ku7p3/50661179257.pdf
- http://uceng.net/_UploadFile/Images/file/navazewibifujixulobiji.pdf
- https://www.generalutilities.com/wp-content/plugins/formcraft/file-upload/server/content/files/160797ff1a3cf2---deseti.pdf
- http://www.kliningstroy.ru/wp-content/plugins/formcraft/file-upload/server/content/files/160a931f5126b7---wuforodex.pdf
- http://janjoling.com/public/ckfinder/userfiles/files/jalerinirumozakusixani.pdf
- https://stakeoutllc.com/wp-content/plugins/super-forms/uploads/php/files/33da55ae02496cd24b1c5ecf0a2cf031/53044101775.pdf
- http://www.majorisinvestimentos.com.br/wp-content/plugins/formcraft/file-upload/server/content/files/160a3c615098a6---boran.pdf
- http://baanpowertrain.com/wp-content/plugins/formcraft/file-upload/server/content/files/16076ec1783490---bezamexarisolero.pdf
- http://robertfeinberglaw.com/images/edit_images/file/39262997691.pdf
- https://feedproxy.google.com/~r/skout/mBVl/~3/3CAf4wW3hvY/uplcv?utm_term=how+to+install+gta+v+lspdfr
- 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_off0000d1d4.binf9401d67cace3bec089f4b7f4694e2dc6c71d62f373810313962eccc5b79c4f2 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xD1D4 | 10684 bytes |
font_01_sfnt_off0000ea38.bin61f2a4e512d225b5d9b1dfe82c2331724f6f509e20e97ad31404463a82dc20e0 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xEA38 | 15984 bytes |
font_02_sfnt_off000113bd.bin9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x113BD | 16792 bytes |
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