MALICIOUS
176
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
The file is a PDF document flagged by ML classifiers and ClamAV as malicious, specifically identified as a phishing trojan. It contains numerous links to external sites, many of which appear to be compromised or disposable hosting, suggesting a link farm or redirection mechanism. The 'SE_CALLBACK_LURE' heuristic indicates the document's content is designed to trick users into calling a phone number, a common tactic in phishing and tech-support scams.
Machine Learning
- Nyx PDF Classifier malicious score 0.9956
Heuristics 7
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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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Callback phishing phone lure medium SE_CALLBACK_LUREDocument asks the user to call a phone number in billing, refund, subscription, fraud, or security context — consistent with callback phishing or tech-support scam patterns. Suppressed for legitimate-issuer (IRS/gov/official-form) documents that carry no urgency or charge/dispute escalation.
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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://queure.ru/uplcv?utm_term=download+followers%2B+pro+apk
- http://lifecare4all.com/upload/files/18953476710.pdf
- http://gd-weimi.com/upfolder/e/files/20210907062529.pdf
- https://repairbase.net/FCKeditor/editor/filemanager/connectors/php/images/file/sukoxi.pdf
- https://vleek.com/uploads/files/1939002607.pdf
- https://hogies.com/includes/template/uploads/file/51031799129.pdf
- https://alasclub.gr/neuro/ckfinder/userfiles/files/57506597510.pdf
- http://iiiemjobs.com/FCK_Editor_Images/files/49451079293.pdf
- http://naphotelbangkok.com/userfiles/files/pelidogabuzulipuk.pdf
- https://devcons.org/uploads/userfiles/files/88296240048.pdf
- http://jkbprivateiti.com/userfiles/file/62911345673.pdf
- https://calendarsunrooms.com/userfiles/files/23416748035.pdf
- http://calisnt.com/uploads/files/20191540896.pdf
- http://camelliafb.com/uploads/files/202109172356161938.pdf
- https://kakvkusno26.ru/wp-content/plugins/super-forms/uploads/php/files/565c192ee294607b573ea66e77a51763/guzuvegamezifunifawiva.pdf
- http://purplebyanki-com.bvirani.com/ckfinder/userfiles/files/migamuw.pdf
- http://www.beverburcht.nl/upload/files/zubijozaxidasugopufefuka.pdf
- http://mos-craciun-inchiriere.ro/fckfiles/file/bijupem.pdf
- http://www.scmphotography.co.uk/wp-content/plugins/formcraft/file-upload/server/content/files/161418f7830256---93828692730.pdf
- http://hysansam.com/fckeditor/userfiles/image/97903243925.pdf
- http://omniatel.it/wp-content/plugins/formcraft/file-upload/server/content/files/1614cdf89588e2---2629017099.pdf
- http://zhouzhuanx.com/v15/Upload/file/2021927415315866.pdf
- https://pyhm.ca/wp-content/plugins/super-forms/uploads/php/files/6bouu2ofhtme5f74phn354d6bd/bezofikuxu.pdf
- http://dade666.com/userfiles/202109file/2021091518235970554.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_off0000ae55.bin9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xAE55 | 16792 bytes |
font_01_sfnt_off0000c667.bin8392ae2a3c72af18212a706166b4cc10cb8e1fa173d105225a53a5ad48aec040 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xC667 | 15312 bytes |
font_02_sfnt_off0000ed06.bind0588bf37896bda35719adff0dfd9558153435d270d56bcfd57071e2d3c6b4ee |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xED06 | 10480 bytes |
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