MALICIOUS
164
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
The PDF contains embedded JavaScript and numerous URLs pointing to potentially compromised or disposable hosting. The heuristic 'PDF_COMPROMISED_CMS_UPLOAD_LINK_FARM' and 'PDF_SEO_DISPOSABLE_LINK_FARM' strongly suggest a malicious intent to redirect users to external sites. The embedded JavaScript likely facilitates this redirection or further malicious activity.
Machine Learning
- Nyx PDF Classifier malicious score 0.9916
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://thaiwoodengames.com/files/upload/files/21701540924.pdf
- https://sunpower.lv/ckfinder/userfiles/files/59118298519.pdf
- http://uceng.net/_UploadFile/Images/file/37472729030.pdf
- http://car-zone.sk/data/data/file/zotufabidi.pdf
- https://sausalito.com/wysiwygfiles/file/99775233659.pdf
- http://iuf.kr/pds_down/files/17527755554.pdf
- http://studiomanzella.com/userfiles/files/62172863166.pdf
- http://sinsg.com/files/fckeditor/file/6164426499.pdf
- http://lisaarkinlaw.com/customer/3/d/9/3d947ad6ce2568d98b832ccf5548371bFile/14484499246.pdf
- http://gok-maciejowice.pl/js/ckfinder/userfiles/files/mepetajemegozuvopetexi.pdf
- https://nocenzura.space/web/img/podborky/files/74187005247.pdf
- https://casartigianiudine.busletter.it/ckfinder/userfiles/files/32098911745.pdf
- https://www.xcelsus.de/wp-content/plugins/formcraft/file-upload/server/content/files/1613b61ef679d6---lijupaxev.pdf
- https://www.web2business.pt/wp-content/plugins/formcraft/file-upload/server/content/files/1614e58d68aa33---56788514125.pdf
- https://abhrian.com/userfiles/files/ludobariwoware.pdf
- https://tcremich.lu/files/files/beduwiwenefivifituto.pdf
- http://badgerhillfarm.uk/suduvib.pdf
- https://plumcourse.com/wp-content/plugins/super-forms/uploads/php/files/ab72989eae0397fd648d0c31ba51e2bb/burisigegazitemirilinu.pdf
- http://fazekaskozpont.hu/images/upload/file/99781680618.pdf
- http://rioairporttransfer.com/ckfinder/userfiles/files/gegizekumuk.pdf
- http://aygroupmuh.com/image/files/gebuduv.pdf
- http://akademibt.com/resimler/files/dikipix.pdf
- http://xn--h1acbpobggs.xn--p1ai/data/files/lavijesibunanazaxik.pdf
- https://sodigital.it/wp-content/plugins/formcraft/file-upload/server/content/files/16140be196d83a---zedovaviwugepes.pdf
- http://xn--oy2b9bv81anouola.com/upload/file/202109190855157438.pdf
- https://spazmedia.com/wp-content/plugins/formcraft/file-upload/server/content/files/1614741fa699f3---34162196935.pdf
- https://feedproxy.google.com/~r/Uplcv/~3/3vuEKuznOb8/uplcv?utm_term=new+real+book+eb+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_off0000b58f.bin9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xB58F | 16792 bytes |
font_01_sfnt_off0000cda6.bine97b4209863ce49036550d2b82fea8e6871ba6656a43711e235d0fcbaabbdd01 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xCDA6 | 10324 bytes |
font_02_sfnt_off0000e4db.binab9969e3444129edf4f8bca879d90af74d097eade4e387f746dc2523b74edf71 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xE4DB | 16428 bytes |
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