MALICIOUS
164
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
The sample was identified as malicious by ClamAV and an ML classifier. It contains embedded JavaScript and a large number of external URIs pointing to various domains, many of which appear to be disposable or compromised. The heuristic 'PDF_SEO_DISPOSABLE_LINK_FARM' indicates a link farm on disposable hosting, suggesting a phishing or malware distribution attempt. The embedded JavaScript likely facilitates the execution of malicious actions or redirection to these external links.
Machine Learning
- Nyx PDF Classifier malicious score 0.9960
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://infrive.ru/uplcv?utm_term=ff7+android+controller+support
- http://pevak.info/UserFiles/File/xasekuxi.pdf
- http://casinodanmarkjackpot.dk/userfiles/file/zozonepep.pdf
- http://maternites-catholiques.org/ressource/site-image/files/97287546970.pdf
- https://dichvumayphoto.vn/webroot/img/files/zarevemijokoverekapapeb.pdf
- http://crestviewshopping.abwingsmd.com/uploads/files/56117496520.pdf
- https://horgaszvelem.elelmiszer-hazhozszallitas.hu/ckfinder/userfiles/files/4247325190.pdf
- http://diagonal.org.ar/wp-content/plugins/formcraft/file-upload/server/content/files/161355f2b5568c---dapobumepimekusagoseleb.pdf
- http://trustarshida.co/cache/fck_files/file/tolinigafiz.pdf
- http://kraemer-duennebacke.de/files/file/donetunaxoladagabilotov.pdf
- https://indobaliart.com/sitefiles/file/soresuxigalulibitaziduzu.pdf
- https://gresathouse.com/wp-content/plugins/super-forms/uploads/php/files/e177723721f41b1a704f982f6b92d1d1/30637736494.pdf
- http://enewind.com/pliki/file/nesita.pdf
- https://fotojursa.cz/userfiles/file/25835746051.pdf
- https://smsenerji.com/resimler/files/gabexarofunosita.pdf
- http://www.hebrewforreadingcomprehension.com/content/zobelamik.pdf
- http://turksebruiloften.nl/userfiles/file/zafitekezatugezemovaxis.pdf
- http://informerfitness.com/wp-content/plugins/super-forms/uploads/php/files/489c17ed567080e48207cface1ffb28a/limadefegafemozexokovu.pdf
- http://kzlo.pl/fotki/fotki/file/lamimiluwaro.pdf
- http://stopguepes72.fr/userfiles/file/dunegoroxuzirajufuzo.pdf
- http://www.timtransportes.com/home/wp-content/plugins/formcraft/file-upload/server/content/files/1613956dc0edff---vitakefux.pdf
- http://csc025.com/userfiles/file/20210903002514_b950uj.pdf
- http://wxeina.com/userfiles/files/jadonuv.pdf
- http://support-cmu.com/filedata/file/lepinod.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_off0000d867.bin9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xD867 | 16792 bytes |
font_01_sfnt_off0000f07e.bin10c89a1550a02690bb182dda6616f6446a2f1a7cc67cd20dc88ad3954cbe58c9 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xF07E | 10740 bytes |
font_02_sfnt_off0001094a.binc66e087d2128a073e542cc468bb7560006bacd00b650be5c072ddabd997936ee |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x1094A | 17912 bytes |
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