MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1204.002 Malicious Link
The PDF contains a link farm pointing to numerous PDF files hosted on compromised WordPress sites, as indicated by the 'PDF_SEO_DISPOSABLE_LINK_FARM' and 'PDF_COMPROMISED_CMS_UPLOAD_LINK_FARM' heuristics. The ML classifier and ClamAV detection strongly suggest malicious intent, likely for phishing or distributing further malware. No scripts were extracted, and the document body was unreadable.
Machine Learning
- Nyx PDF Classifier malicious score 0.9972
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://cohn-vossen.com/wp-content/plugins/formcraft/file-upload/server/content/files/1609804776a603---buriforadenenelavuj.pdf
- https://discoverapartmentsforrent.com/wp-content/plugins/super-forms/uploads/php/files/01b5cf9a95e03f49e3bb665e58d8fb8c/94510385828.pdf
- https://edusfera.pl/upload/file/xakinitebijifojaweme.pdf
- http://mko-yug.ru/wp-content/plugins/super-forms/uploads/php/files/04c0ec3e78f021e3f7f0ef08c60cebe5/wozivixesumerezepajufeb.pdf
- https://caravanandre.it/wp-content/plugins/super-forms/uploads/php/files/efb274ed350d84786ab93649f582ebad/dufaluzuvawosazemafixobap.pdf
- https://www.guestquesttravelmedia.com/wp-content/plugins/super-forms/uploads/php/files/r3l217b51ktlaiaaarj2u8p00s/sezuwilevulujopufuwud.pdf
- http://www.akutrans.com/wp-content/plugins/formcraft/file-upload/server/content/files/160a899d1a2b66---49049826481.pdf
- http://andlupa.com/userfiles/file/kuzabowutikenedutodabizeb.pdf
- http://terapeutickemasaze.eu/wp-content/plugins/formcraft/file-upload/server/content/files/16083209d6b391---4946146731.pdf
- http://com123.vn/uploads/file/fozeb.pdf
- http://vodnik48.ru/content/file/39359291925.pdf
- https://borderpak.com/wp-content/plugins/super-forms/uploads/php/files/7f26000f21726ffaeab3dfee2ebc32f4/sodobikosite.pdf
- https://appvid.eus/userfiles/files/32428405367.pdf
- https://maturana.cl/upload/file/53932562013.pdf
- http://rahwayhigh.com/clients/42761/File/58761986316.pdf
- https://reifenscho.de/wp-content/plugins/formcraft/file-upload/server/content/files/1607812955d8c7---51405513312.pdf
- http://akcjonariusz.com/UserFiles/file/sazefevesi.pdf
- https://www.auditek.fr/wp-content/plugins/formcraft/file-upload/server/content/files/16086fd178beff---wajagenebadun.pdf
- https://whitelightdesign.com/wp-content/plugins/super-forms/uploads/php/files/4f32b21e1d098480eb601ad5f4562244/79940148004.pdf
- https://laxmigrouppune.com/wp-content/plugins/super-forms/uploads/php/files/a7f633f67a9ec4c6ea28c9c2611fff43/12317027191.pdf
- https://repare-ton-smartphone.com/userfiles/file/bazuve.pdf
- https://feedproxy.google.com/~r/skout/mBVl/~3/S30rS-6n6vg/uplcv?utm_term=my+child+is+constantly+clearing+her+throat
- 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_off0000e33d.bin9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xE33D | 16792 bytes |
font_01_sfnt_off0000fb4f.bindbac2e03f6307689e6df000899826c365ed235c66f69c71e323ecaae10db74ae |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xFB4F | 16720 bytes |
font_02_sfnt_off000126cc.bin54a63a018a0993e757dbe8c2623f5e0afe8ea0a11cbd8c386a4b5b8d4a816075 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x126CC | 10756 bytes |
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