MALICIOUS
172
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
This PDF sample was flagged by ClamAV as Pdf.Phishing.Trojan and by an ML classifier as malicious. It contains embedded JavaScript and a link farm pointing to multiple compromised WordPress sites, suggesting an attempt to redirect users to malicious content or phishing pages. The presence of a 'download' button heuristic further supports a lure-based attack pattern.
Machine Learning
- Nyx PDF Classifier malicious score 0.9953
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 https://coretry.ru/uplcv?utm_term=the+one+and+only+ivan+packet+answers
- https://drainscovers.com/wp-content/plugins/super-forms/uploads/php/files/e6cb5034c357325afd05d81d681fc6a8/43481288360.pdf
- http://thangmayedex.com/webroot/img/files/23722820709.pdf
- https://coachtourbusrental.com/wp-content/plugins/formcraft/file-upload/server/content/files/160d6d04f0586f---25656888534.pdf
- https://halobysciton.com/wp-content/plugins/formcraft/file-upload/server/content/files/16094911b58476---26152400797.pdf
- https://www.andyselfstorage.co.uk/wp-content/plugins/super-forms/uploads/php/files/36br77js0u02mcmpq77d2n520q/89843515196.pdf
- http://co-wemart.com/careeruserfiles/file/sagurabomibovapa.pdf
- https://lastcallslc.com/wp-content/plugins/super-forms/uploads/php/files/e9b6f89cff0f658c65779532161beff9/95692992380.pdf
- http://skyrunarser.com/js/fckeditor/editor/filemanager/connectors/php/connector.php/upfiles/file/210614180608896883z7tmth.pdf
- http://www.miamiairportlimo.net/wp-content/plugins/formcraft/file-upload/server/content/files/16082f4620582b---99538775268.pdf
- http://smclassof57.org/clients/34860/File/papupebobeju.pdf
- http://theydeserveastamp.org/wp-content/plugins/formcraft/file-upload/server/content/files/16085f709d7b76---zobezejitedepovedefawibu.pdf
- https://lllk.ru/wp-content/plugins/super-forms/uploads/php/files/d8d05eb6bd1e392903e54177ab783a52/89139805831.pdf
- https://easybuildapp.com/files/uploaded/files/82208301687.pdf
- http://www.centralperdana.com/file/vijivofufuk.pdf
- https://sunsoftinfoway.net/ckfinder/userfiles/files/39171214048.pdf
- http://clinicacomciencia.com.br/wp-content/plugins/formcraft/file-upload/server/content/files/1607f38d785517---nobozaruzejikadofawibak.pdf
- https://www.numberoneporthill.co.uk/wp-content/plugins/formcraft/file-upload/server/content/files/160c8a386a31cc---39643238104.pdf
- http://jiuxingchaoshi.com/uploads/file/201343392670.pdf
- https://functionalmovement.gr/wp-content/plugins/super-forms/uploads/php/files/2ee19c303d421ad964bf2aaf9e1e3b26/64393865644.pdf
- https://buddingheights.org/wp-content/plugins/formcraft/file-upload/server/content/files/160a1071d75151---68584366277.pdf
- http://theopenhouseclub.com/wp-content/plugins/super-forms/uploads/php/files/b7548113b985e7e93ed3eb199a7ce9b9/91485911139.pdf
- https://skyfireconsulting.com/wp-content/plugins/super-forms/uploads/php/files/iu6e91f0fdgaodjcu8i0c441i1/pewibulesuzanakanasixobes.pdf
- http://architettodrabeni.it/userfiles/files/81534951103.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_off0000c352.bin9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xC352 | 16792 bytes |
font_01_sfnt_off0000db69.bine3260a31d0a202fd8abcaef616f32389106763918a4d5cdbf641ae958b892869 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xDB69 | 10932 bytes |
font_02_sfnt_off0000f4ba.bine08e4f12d88eff37b9ea06e4aa1c6cdaffb8e9639a0d63c80710ce3d3890d727 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xF4BA | 16268 bytes |
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