MALICIOUS
164
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
The file is identified as malicious by ClamAV and an ML classifier, and contains embedded JavaScript. The heuristics indicate it functions as a link farm, directing users to multiple external URLs, some hosted on compromised CMS platforms. This suggests an attempt to redirect users to phishing or malware download sites.
Machine Learning
- Nyx PDF Classifier malicious score 0.9982
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://ketchas.ru/uplcv?utm_term=open+source+download+manager
- https://sealordhotels.com/ckfinder/userfiles/files/52280428127.pdf
- https://channeloflove.com/ckfinder/userfiles/files/15514962480.pdf
- http://hcbarrett.com/user_area/file/47539066993.pdf
- https://frisch.ro/files/file/24390855956.pdf
- https://neksav.com/upload/ckfinder/files/97654592098.pdf
- http://acunambalaj.com/adenoto/upload/files/rutepovez.pdf
- http://smartmedicaleg.com/wp-content/plugins/formcraft/file-upload/server/content/files/16130790909c1b---9431217315.pdf
- http://autovoda.ru/upload/files/tarevabid.pdf
- https://cmoretv.com/userfiles/79439265727.pdf
- https://asthasupermarket.com/userfiles/file/14238171007.pdf
- http://salon-urody-bellis.pl/images/file/26079203771.pdf
- https://marblobath.marblobaths.ph/app/webroot/img/files/51296232066.pdf
- https://congchungnguyenlieu.vnpec.xyz/uploads/files/97612498520.pdf
- https://newegys.egyseg.eu/ckfinder/userfiles/files/dubazarukudutepuxovumowub.pdf
- http://zmz72.ru/files/file/41683663859.pdf
- http://malopolskiszlakwinny.pl/upload/File/rasurosesojir.pdf
- https://amagi.la/wp-content/plugins/formcraft/file-upload/server/content/files/1614569007c161---kiwomazanigoruwu.pdf
- https://homeaestheticsllc.com/wp-content/plugins/super-forms/uploads/php/files/35e61916d6c851140d38138ae4ff4fe4/muvofubapolase.pdf
- http://holzbau-napetschnig.at/lejulajewatof.pdf
- http://hotspot-usa.com/js/upload/files/54923327239.pdf
- https://fentesmakina.com/paket/upload/files/bovuxe.pdf
- http://xn--sanitrprofi-p8a.ch/fckeditor/editor/images/file/51581459116.pdf
- https://atolab.it/wp-content/plugins/super-forms/uploads/php/files/74dfeb745e8f3eda0a4c619cacba75a9/31347564451.pdf
- https://singhaniabrothersltd.com/ckeditor/ckfinder/userfiles/files/xegaxojojivinilan.pdf
- http://yakutiaprime.ru/SITE/files/editor/file/15905497355.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_off0000b737.bin5c49b60b3230ae350402cb9e1cdc8d1cc086ec0c6ff501922bcf9564159ae3af |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xB737 | 10876 bytes |
font_01_sfnt_off0000d03b.bin9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xD03B | 16792 bytes |
font_02_sfnt_off0000e84d.binf1a4ac583cd831879fafbbb0d3a688c5ec05c805ce8f0603338fb8a7ab386250 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xE84D | 17044 bytes |
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