MALICIOUS
164
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
The PDF contains numerous external URIs, many of which are hosted on disposable domains and appear to form a link farm. The presence of embedded JavaScript and a high ML classifier score, along with ClamAV detection as 'Pdf.Phishing.Trojan', strongly suggests a malicious intent to redirect users to potentially harmful content. The embedded JavaScript is likely used to facilitate the redirection or exploit vulnerabilities.
Machine Learning
- Nyx PDF Classifier malicious score 0.9977
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://maiodi.com/userfiles/files/mekibudeloxal.pdf
- http://sowiik.pl/userfiles/file/59315622045.pdf
- http://apvn.info/userfiles/file/79338730711.pdf
- http://apartamentykunickiego.pl/architekci/public/upload/ckfinder/userfiles/files/wuwilijatojet.pdf
- https://u-spot.biz/js/ckfinder/userfiles/files/bebibin.pdf
- http://sensi-leszno.pl/userfiles/file/kelovutudurakamuwiredo.pdf
- http://packamate.com/userfiles/fanebowadogugatax.pdf
- http://kaplanpm.com/wp-content/plugins/formcraft/file-upload/server/content/files/1612f27b00c431---46421987300.pdf
- http://stressmanagement-karriere.de/userfiles/file/53537258501.pdf
- https://walkandsmile.com/userfiles/file/gulezixaxoj.pdf
- http://isagenixmakessense.com/ckfinder/userfiles/files/sojedubokab.pdf
- http://galantemontagnana.it/ckfinder/userfiles/files/mebazujuvuju.pdf
- http://argentum.com/wp-content/plugins/super-forms/uploads/php/files/rokflhal1m1j1mug26hobk4i9o/72314955814.pdf
- https://alperbehang.nl/userfiles/file/66936913167.pdf
- http://www.frank-diagn.hu/userfiles/files/23271735319.pdf
- http://sethhukumchandschool.com/userfiles/file/6900518189.pdf
- https://yarpaket.ru/userfiles/file/nupapilokavesa.pdf
- https://kenhquangcao.vn/uploads/files/4283589205.pdf
- https://tennis94.fr/img/pics/files/xadinutixomopivefud.pdf
- http://solarexperten.ch/fckeditor/editor/images/file/dokozisuvexe.pdf
- http://upasamed.org/Content/uploads/files/559713727.pdf
- https://www.mclarenpress.com/wp-content/plugins/formcraft/file-upload/server/content/files/161350826032f6---dosedugudikikonimarokepur.pdf
- https://granitabrasive.ro/editor_up/fepumibi.pdf
- https://feedproxy.google.com/~r/Uplcv/~3/YTWXjIUwRh0/uplcv?utm_term=18+wheeler+arcade
- 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_off0000df4f.binb7a653a60a45788851262bafc6e3f47941e753092077156b1d168fc0c050452e |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xDF4F | 10136 bytes |
font_01_sfnt_off0000f62f.bin9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xF62F | 16792 bytes |
font_02_sfnt_off00010e41.bincc2033bd6d79925957da03e529b194169d828274069c1e675b0d7e6f255c1c37 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x10E41 | 19844 bytes |
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