MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
This PDF file was flagged by multiple heuristics as malicious, including a high-confidence ML classifier and ClamAV detection. The heuristics indicate the PDF contains a link farm pointing to compromised WordPress upload directories, suggesting it's used to host malicious content. The presence of embedded URLs and the nature of the heuristics point towards a phishing or malware distribution scheme, likely delivered as a spearphishing attachment.
Machine Learning
- Nyx PDF Classifier malicious score 0.9917
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://pulsrmedia.com/wp-content/plugins/formcraft/file-upload/server/content/files/1609286fb9238d---befinulufokidowobene.pdf
- http://www.peopleoftheheath.com/wp-content/plugins/formcraft/file-upload/server/content/files/1609f7290d2eb1---9422597786.pdf
- http://www.atrium-tuiles.com/wp-content/plugins/formcraft/file-upload/server/content/files/160b85a6ee2878---tukal.pdf
- http://sochi-polyana.com/ckfinder/userfiles/files/46452903413.pdf
- http://ekolojikweb.net/upld/userfiles/file/19017846166.pdf
- http://pension-erlkoenig.de/img/editor/file/fanekekageweb.pdf
- http://alicekhenrylawoffice.com/customer/3/d/9/3d947ad6ce2568d98b832ccf5548371bFile/dezixoxijepokijalejixav.pdf
- https://tlproduct.com/userfiles/file/28711741435.pdf
- http://www.deadclan.nl/wp-content/plugins/formcraft/file-upload/server/content/files/1608de81e6c235---deseranadokav.pdf
- https://laxmigrouppune.com/wp-content/plugins/super-forms/uploads/php/files/184ec8283b09a19cef1a80a03567a86e/suzamaritafosalodutet.pdf
- http://paradisetourkorea.com/FileData/ckfinder/files/20210605_75568442D7DAE942.pdf
- http://alarcon-v.com/editor_upload_image/file/bokuxexemulozepi.pdf
- http://www.fullmooneye.com/wp-content/plugins/formcraft/file-upload/server/content/files/1608520d7788bc---44576393984.pdf
- http://elite-nails.pl/Upload/file/rulowevuwerawotopi.pdf
- https://www.northamericatalk.com/wp-content/plugins/formcraft/file-upload/server/content/files/1607a33f64477a---lutodabireko.pdf
- https://puertoestereo.com/wp-content/plugins/super-forms/uploads/php/files/o6umvmeu8fo1haaeqiog3keatg/7982622477.pdf
- http://ahxxzx.com/userfiles/202106/file/noloxevofukovatolamipaki.pdf
- http://www.chinahkcarplate.com/wp-content/plugins/formcraft/file-upload/server/content/files/1608e8e471d034---48067849549.pdf
- http://chnli.tw/CKEdit/upload/files/pelizizixopefakatadedu.pdf
- https://ddriu.hu/wp-content/plugins/super-forms/uploads/php/files/b8d81b401f234c99d420d2fcb7fe9409/lixofizubekotidojukorunof.pdf
- http://vipavtoufa.ru/wp-content/plugins/super-forms/uploads/php/files/6016d7bed36f08d09b4a451f01abdfd7/11998188962.pdf
- https://hps-gruppe.com/wp-content/plugins/super-forms/uploads/php/files/6548det4jv8rssrtfhqpdio6sr/71491867645.pdf
- http://aeskulap24h.com/wp-content/plugins/formcraft/file-upload/server/content/files/160afea7901b3f---9857552145.pdf
- http://caacoding.net/wp-content/plugins/formcraft/file-upload/server/content/files/160865a246c836---juzizanezifiwilumizitag.pdf
- http://togetherwewalkny.org/clients/2/24/2411cc079aa0f0d7fd57f81c6163ecfd/File/16757696673.pdf
- https://feedproxy.google.com/~r/1eyvgo/aqOO/~3/Om9ozkHLxGw/uplcv?utm_term=upcoming+pageants+2020+near+me
- 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_off00012e19.bin9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x12E19 | 16792 bytes |
font_01_sfnt_off00014630.binf5bdd0942219517a0b159af803b77216bd3f3b38d407268773dcc1fd87f11159 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x14630 | 10920 bytes |
font_02_sfnt_off00015f82.bin6a7136cd4512395ddebfe25994522897181b6675fe66a2aa4da4dff0f89607d9 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x15F82 | 18464 bytes |
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