MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1203 Exploitation for Client Execution
The PDF contains a link farm directing to multiple compromised WordPress sites, indicating a phishing or malware distribution attempt. The ML classifier and ClamAV detection strongly suggest malicious intent. The document body is unreadable, but the heuristic firings and numerous extracted URLs point to a malicious link farm designed to lure users to potentially harmful content.
Machine Learning
- Nyx PDF Classifier malicious score 0.9963
Heuristics 6
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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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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://graphicon.hu/wp-content/plugins/formcraft/file-upload/server/content/files/16075cc7203afb---nukud.pdf
- https://asiatravel.kg/wp-content/plugins/super-forms/uploads/php/files/81c50cef4aaa1b06598d310493676eeb/lexoderoxug.pdf
- https://butterfly-propertymanagement.com/userfiles/file/58413677079.pdf
- https://amezdigital.com/wp-content/plugins/super-forms/uploads/php/files/c2b3a84ecd434d69238b425ad411b19d/20859007046.pdf
- https://www.dooleysnaturalgas.com/ckfinder/userfiles/files/joteguworaxeduxore.pdf
- http://anonelectronics.com/admin/fckeditor/editor/filemanager/connectors/php/upload_jpg/file/202106152057211316.pdf
- http://www.linkkorea.co.kr/wp-content/plugins/formcraft/file-upload/server/content/files/1609cc6d69c348---14563013891.pdf
- https://portsidestrategies.com/wp-content/plugins/super-forms/uploads/php/files/88b23b65ed063b842100e8c90eafba3b/42256962598.pdf
- http://www.danvillern.com/wp-content/plugins/super-forms/uploads/php/files/0565km151tf1oolnh7mg9id175/lunivodusanefizurekipox.pdf
- http://xn--80ackbssfuieecff0e8c.xn--p1ai/wp-content/plugins/super-forms/uploads/php/files/3c0vhfvlg5kk1cij71jk8pihk0/digofilidelinetidamutaf.pdf
- https://506hlapeta.com/files/file/takejuzumuzederi.pdf
- http://nd-58.ru/wp-content/plugins/super-forms/uploads/php/files/0c06c25621282ea1a55a8c2bd51464d0/27653277401.pdf
- http://kazenergy.kz/wp-content/plugins/formcraft/file-upload/server/content/files/160cc70f4da7ae---84387971414.pdf
- https://regeneracion-capilar.com/wp-content/plugins/super-forms/uploads/php/files/2f5463ecc249cba0b09011a908167b34/43044761081.pdf
- http://sun-green.be/ckfinder/userfiles/files/67524167761.pdf
- http://kavtas.com/images_upload/files/nibudugezonunekakejof.pdf
- http://cathugo.de/res/wysiwyg/file/53119744272.pdf
- https://www.lindopoint.it/wp-content/plugins/super-forms/uploads/php/files/966f72b41b282677b31597042384cfe6/zomawuwolide.pdf
- http://ridendo.cz/files/file/pobiz.pdf
- https://djhelaly.com/wp-content/plugins/super-forms/uploads/php/files/e4d7189e6d9ee511eb2533929b51498c/9685483823.pdf
- http://szao-spb.ru/images/news/file/40134158414.pdf
- https://bilegt.mn/userfiles/files/65021147542.pdf
- http://lindendirect.com/tempimg/file/83039862525.pdf
- http://motivationandmomentum.net/ci/userfiles/files/latofazowowefujibuvavi.pdf
- https://feedproxy.google.com/~r/1eyvgo/aqOO/~3/Om9ozkHLxGw/uplcv?utm_term=exerc%C3%ADcios+figuras+de+linguagem+vestibular
- 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_off00013fe3.bin9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x13FE3 | 16792 bytes |
font_01_sfnt_off000157fa.bin5f054c597e4a9913c878b831d2f328e76b8caf5bb8b25ccee6f3be78fa2ff837 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x157FA | 11272 bytes |
font_02_sfnt_off00017243.bin246de2e4bf17d8163373811607fc4009f47c0ab04570fbe3305de244d1c9286c |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x17243 | 20092 bytes |
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