MALICIOUS
164
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
The PDF contains numerous embedded URLs, many pointing to compromised CMS uploads and disposable hosting, suggesting a link farm designed to distribute malicious content. The presence of embedded JavaScript and a high ML classifier score further indicate malicious intent, likely for phishing or malware delivery. ClamAV also detected this as a phishing trojan.
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 https://philabc.ru/uplcv?utm_term=room+database+kotlin+tutorial
- https://moraure.net/js/ckfinder/userfiles/files/tifosig.pdf
- http://aspbae.org/userfiles/file/jinivagolowakod.pdf
- https://www.kuwaitpolyurethane.com/ckfinder/userfiles/files/31968464197.pdf
- http://vibrobeton.by/pics/files/palunajifavobelalam.pdf
- http://elenasteele.com/wp-content/plugins/formcraft/file-upload/server/content/files/1614f8be9f2671---xomobidil.pdf
- http://taxfreepoint.com/file/xefiseligibunurufi.pdf
- http://placidlakes.com/larpm/uploads/file/xojezelomu.pdf
- http://christmaslandint.com/userfiles/wifuloruzew.pdf
- http://topopentertainment.com/wp-content/plugins/formcraft/file-upload/server/content/files/161343cd41b675---pivizes.pdf
- http://sanraimundo.cl/dyn/uploads/file/penulamava.pdf
- http://aias.pnu.ac.th/ckfinder/userfiles/files/89412107213.pdf
- https://netpage.info/userfiles/file/84540569322.pdf
- https://mami-m.com/Uploads/userfiles/files/31155499262.pdf
- http://birizgardenhotel.com/userfiles/file/12854228076.pdf
- https://jdbailbonds.com/wp-content/plugins/super-forms/uploads/php/files/af2f253e3f01105a42bba2dd85183dd7/nujipena.pdf
- https://www.simplythebestevents.ca/wp-content/plugins/formcraft/file-upload/server/content/files/16133c58522661---kunodevaxanorelejeduteb.pdf
- http://sdtrafficticketlawyer.com/customer/3/d/9/3d947ad6ce2568d98b832ccf5548371bFile/16311145080.pdf
- http://francescasciortino.it/userfiles/files/lezukokovukimelumotovemu.pdf
- https://jamuiboe.com/webroot/upload_media/wogexotaku.pdf
- http://emailreceptionist.net/userfiles/file/99531732548.pdf
- https://sharks-cz.cz/images/file/fidosotamod.pdf
- https://aeternoplanning.com/ckfinder/userfiles/files/69078357151.pdf
- http://tfh-filter.hu/_user/file/pefufozuxutoferevib.pdf
- http://studiocalderini.it/userfiles/files/vosovafatupokezawoxi.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_off0000b2f8.bin6257046d840ee58b5ee85063cf74eea5678944f189f09947bb8a1c436199292a |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xB2F8 | 10784 bytes |
font_01_sfnt_off0000cbc5.bin15ed81021e83c5611000beb7cd1ac24729e8a0c6a5c5bc5abee50245cdc316a5 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xCBC5 | 15224 bytes |
font_02_sfnt_off0000f27b.bin9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xF27B | 16792 bytes |
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