MALICIOUS
164
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
The PDF contains embedded JavaScript and numerous external URIs, many of which point to compromised WordPress sites or disposable hosting, indicating a link farm for SEO poisoning or phishing. The ML classifier and ClamAV detection strongly suggest malicious intent. The embedded JavaScript likely facilitates the redirection to these malicious sites.
Machine Learning
- Nyx PDF Classifier malicious score 0.9912
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 http://eca.or.th/ckfinder/userfiles/files/jexewipupilogu.pdf
- http://ttccid.com/userfiles/file/63085111497.pdf
- http://www.marcado.ca/wp-content/plugins/formcraft/file-upload/server/content/files/16138bb114b14d---datumopesiw.pdf
- http://unipell.com.br/wp-content/plugins/formcraft/file-upload/server/content/files/16143da3077e55---mugekexuzaki.pdf
- https://branpc.in/ckfinder/userfiles/files/mejiravalujanagiri.pdf
- https://ailani.org/wp-content/plugins/super-forms/uploads/php/files/6536b7d853bc3de6205fecfb6fab9f3b/53928892442.pdf
- http://optometrystaprzemysl.pl/userfiles/file/videgumigadijakan.pdf
- http://olympiad-bigben.ru/ckfinder/userfiles/files/ximerapegadu.pdf
- http://akiisushi.com/uploads/files/zediretobak.pdf
- https://natyabio.com/uploadfiles/lasunerabodekovetaxuge.pdf
- https://www.alitec.es/js/ckfinder/userfiles/files/mobufabariwiwef.pdf
- https://sketchup360.vn/wp-content/plugins/super-forms/uploads/php/files/qdhgcfnkmv7u3h6ovm3c583km8/sewexafapobinep.pdf
- https://winpoasia.com/ckfinder/userfiles/files/pewodogad.pdf
- https://beaufortbond.com/wp-content/plugins/super-forms/uploads/php/files/743d8191b7e00a6ea78146c342f2fe82/14601311866.pdf
- https://guruvinodji.com/Userfiles/file/1702640763.pdf
- https://lompatjauh.com/contents/files/nefudivasanazux.pdf
- http://cross-winds.in/upload/contents/images/images/xebimovadipiku.pdf
- https://greenbins.ca/ckfinder/userfiles/files/fejopobizenugaju.pdf
- http://viprealestatebrokers.com/userfiles/files/44585122320.pdf
- http://acunambalaj.com/adenoto/upload/files/bexukemiwelesotazoru.pdf
- http://asja-doll.ru/userfiles/file/17115881712.pdf
- http://elpijisystem.com/file/84785161775.pdf
- http://lynxauto.ru/userfiles/file/zejobaji.pdf
- https://cepatdaftargroup2.com/contents/files/fizogakivomerip.pdf
- http://xn--80ackbssfuieecff0e8c.xn--p1ai/wp-content/plugins/super-forms/uploads/php/files/nvkhg06gonjhonl8uukmjh9as2/95707662396.pdf
- https://www.helpfulhunks.com.au/wp-content/plugins/formcraft/file-upload/server/content/files/161427faee27a8---41674642609.pdf
- https://feedproxy.google.com/~r/Uplcv/~3/Om9ozkHLxGw/uplcv?utm_term=passive+voice+all+tenses+exercises+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_off0000dbd8.bin5a779b8a569bdb19b3c884c05de9d4e10bdb3320b7b4fc87e19a05e8e086cb14 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xDBD8 | 20812 bytes |
font_01_sfnt_off00011275.bin9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x11275 | 16792 bytes |
font_02_sfnt_off00012a8c.binb9faa9d72785de6ad6cd40a63bd59e4c02eab5988c2a3048fc0f57aefa587c29 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x12A8C | 10784 bytes |
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