MALICIOUS
172
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
The PDF contains embedded JavaScript and numerous links, many pointing to compromised CMS upload storage or disposable hosting, suggesting a link farm designed to redirect users. The ML classifier and ClamAV detection strongly indicate malicious intent, likely phishing or malware distribution.
Machine Learning
- Nyx PDF Classifier malicious score 0.9870
Heuristics 8
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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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Visual download / call-to-action button lure low SE_DOWNLOAD_BUTTONDocument contains a call-to-action phrase ('Click here to download', 'Download Now', etc.) — low-signal unless other findings point to a malicious workflow
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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://cycling-software.com/files/file/suxuluganosasomuvuj.pdf
- http://ukonlinedirect.com/userfiles/files/kigubenomatu.pdf
- https://qeyeoptical.com/ckeditor/ckfinder/userfiles/files/sexawimujezowovubidu.pdf
- http://evolution-dev.com/file_media/file_image/file/80190937809.pdf
- https://greenbins.ca/ckfinder/userfiles/files/65192020875.pdf
- http://plovdivweek.com/app/templates/js/ckfinder/userfiles/files/rokaxoduvemikoribufufinol.pdf
- https://aslimitada.com/userfiles/file/putuwew.pdf
- http://www.belladermeestetica.com.br/wp-content/plugins/formcraft/file-upload/server/content/files/16146259b342fe---53124223584.pdf
- http://4998horo.gmmwireless.com/contents/files/63183157000.pdf
- https://goactive.hu/wp-content/plugins/super-forms/uploads/php/files/d8833cdbaad560848487f0ec95403eeb/60107551128.pdf
- http://pet.nfe.go.th/m_site/ckfinder/userfiles/files/fotow.pdf
- https://limblength-sldf.com/userfiles/file/vijowubosid.pdf
- http://aaas.handyfriendship.com/upload/files/99117902907.pdf
- http://pekingtogo.com/uploads/files/mibuw.pdf
- https://bishopsalamatkhokhar.org/userfiles/file/lagixukitewuvujutujifozaz.pdf
- http://lnyuanzong.com/uploads/files/20210918121738.pdf
- http://take114.kr/FileData/ckfinder/files/20210907_7F798AE4AA1DF912.pdf
- http://boschvietnam.vn/files/usersfiles/files/jorurog.pdf
- https://championsforchildren.org/wp-content/plugins/super-forms/uploads/php/files/079488924f84bb578db3a78dab15f43d/10540208377.pdf
- https://sunrise-photon.com/upfiles/editor/files/29863095067.pdf
- https://glycocalyx.nl/userfiles/image/file/62253784083.pdf
- http://www.sunarsurdurulebilir.com/wp-content/plugins/super-forms/uploads/php/files/kau4qgh659m939go58ap0nohb0/movaxujeratok.pdf
- http://graylegalservices.com/customer/3/d/9/3d947ad6ce2568d98b832ccf5548371bFile/16870324541.pdf
- http://vinhthuan.vn/upload/files/64823343509.pdf
- http://kaplanpm.com/wp-content/plugins/formcraft/file-upload/server/content/files/1613190d8b374c---98947250867.pdf
- https://feedproxy.google.com/~r/1eyvgo/aqOO/~3/LPIa9PGmDLg/uplcv?utm_term=black+panther+online+free+putlocker
- 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 5
Files carved from inside the sample during analysis.
| Filename | Kind | Source | Size |
|---|---|---|---|
font_00_sfnt_off0000f4f0.bina9bee242d09f14a2a02d58616f167becb9d2a4e038e4e3db35bc4c72cb4bc1a0 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xF4F0 | 1800 bytes |
font_01_sfnt_off0000fd69.bin5ed6a264a66e75ddc54467542865d6287075443d3fe1eaee891d974e7baa3e8f |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xFD69 | 22400 bytes |
font_02_sfnt_off00013779.bin9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x13779 | 16792 bytes |
font_03_sfnt_off00014f8a.bin071bac7a3a90310621307d68123817e30fba7c89f9e5021c4391eb43bd8b9137 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x14F8A | 16132 bytes |
font_04_sfnt_off00016502.binab57b431bd6ba4c3c855aea540fe3425a6352fefd60cb3fd8a2c177ae9be0915 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x16502 | 10652 bytes |
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