MALICIOUS
164
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
The PDF contains embedded JavaScript and multiple external URIs pointing to compromised WordPress upload directories. These links form a link farm, a common technique to obscure malicious destinations or distribute phishing lures. The ML classifier and ClamAV detection strongly indicate malicious intent, likely related to phishing or malware distribution.
Machine Learning
- Nyx PDF Classifier malicious score 0.9975
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 http://www.vitrierbxl.be/wp-content/plugins/formcraft/file-upload/server/content/files/161356b4787f42---40598691206.pdf
- https://copperscraphandlers.com/ckfinder/userfiles/files/3536671013.pdf
- http://tokyoto.pl/UserFiles/file/25373539805.pdf
- http://thailaundry.com/imgUpload/files/97225859671.pdf
- http://business-plan-capalpha.eu/mbp/upload/images/images/upload/ckfinder/buzenu.pdf
- http://efuegypt.org/userfiles/file/raxuwavux.pdf
- http://fatfailogistics.com/fckeditor/files/file/78187029410.pdf
- http://project-lovcen.me/userfiles/file/ragurodubavel.pdf
- http://mywymc.com/userfiles/file/jifomomilusarijisixawaf.pdf
- http://kaufdeinauto.de/wp-content/plugins/formcraft/file-upload/server/content/files/161442c30d3ea6---zaduwe.pdf
- http://yourbuilding.ru/userfiles/files/rixidaki.pdf
- http://www.mecateengenharia.com.br/ckfinder/userfiles/files/31811268560.pdf
- https://audit-advisers.com/userfiles/file/95620543456.pdf
- https://uslugiinzynierskie.com/eurostyl/photos/file/xajakekakagifedad.pdf
- http://chemtron-vostok.ru/media/file/vivanopapubeworigukegadag.pdf
- http://www.saletime.gr/admin/fckfiles/file/94124199032.pdf
- https://www.thic.net/plugin/ce1/ckfinder/userfiles/files/89111208877.pdf
- https://empezo.xyz/js/ckfinder/userfiles/files/5006221256.pdf
- https://kakvkusno26.ru/wp-content/plugins/super-forms/uploads/php/files/9bb17ccdccfe95d0f757c3f7bdc89930/bijozukirupetufomafodaxut.pdf
- http://www.fd.ntou.edu.tw/ckfinder/userfiles/files/vovusuzuvepuvezawisevila.pdf
- http://stlnsk.ru/uploads/file/visaxogogujixe.pdf
- https://www.newhorizonscrisiscenter.org/ckfinder/userfiles/files/75210049377.pdf
- https://gamma-electronics-eg.com/userfiles/files/12363978186.pdf
- http://abwmercury.com/uploads/files/xiwagenoje.pdf
- http://pronobile.de/catalog/file/gesilebow.pdf
- https://feedproxy.google.com/~r/1eyvgo/aqOO/~3/1xuhb7AK25c/uplcv?utm_term=i+am+honoured+synonym
- 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_off0000ca64.bin30aa53987d52470a7b41901dae3b0f0dbc173cb863c99ad964778aabd7b599c5 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xCA64 | 10444 bytes |
font_01_sfnt_off0000e1e1.bin9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xE1E1 | 16792 bytes |
font_02_sfnt_off0000f9f3.bin883e02f92caf2ef7fe91d755c03b3b932c0f8fe6a5421bc10639e46d3b929648 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xF9F3 | 21708 bytes |
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