MALICIOUS
176
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1203 Exploitation for Client Execution
The PDF file was flagged by ML classifiers and ClamAV as malicious, specifically as a phishing trojan. It contains numerous embedded URLs, many of which point to compromised websites or disposable hosting, forming a link farm. The heuristic 'PDF_SEO_DISPOSABLE_LINK_FARM' indicates the document's purpose is to redirect users to potentially malicious or SEO-manipulated content. The 'SE_QR_LURE' heuristic suggests an attempt to trick users into scanning a QR code, further supporting a phishing or redirection scheme.
Machine Learning
- Nyx PDF Classifier malicious score 0.9974
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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QR-code redirect lure medium SE_QR_LUREDocument instructs the user to scan a QR code with a phone — consistent with QR phishing, but also common in legitimate documents
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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://eskuvotoszkanaban.hu/editor_up/gavibazunifijipazugulu.pdf
- https://noble-worldwide.com/wp-content/plugins/super-forms/uploads/php/files/9e2d32e2d1a434b5a552db8dbe6bf400/tigafivubibupijix.pdf
- http://sunrui-ti.com/d/files/55425429371.pdf
- http://mingmitrcoffee.com/user_img/files/82712612190.pdf
- https://cryptoshift.be/anaeter_capital/siteadmin/userfiles/files/71922527200.pdf
- https://www.medipratik.com/wp-content/plugins/formcraft/file-upload/server/content/files/1613516dccc429---remakotaxosig.pdf
- http://aimecostruzioni.it/userfiles/files/noxajunifejegijelisiwit.pdf
- http://www.vitrierbxl.be/wp-content/plugins/formcraft/file-upload/server/content/files/16130230f7f2c4---kunulezoxi.pdf
- http://szerecsen.hu/editor_up/sunudawuvejomujutub.pdf
- http://ohadalegistrocbarter.com/ckeditor/uploads/files/88674988378.pdf
- http://atenngo.com/admin/sites/site/documents/babipetu.pdf
- https://suthuytinh.com/app/webroot/uploads/files/1835154828.pdf
- https://koetec.com/home/~ptow/public_html/ckfinder/userfiles/files/64798525843.pdf
- http://shimamura-mail-order.com/userfiles/file/rusujojodabamareralonura.pdf
- https://www.sophrologue-nimes.fr/upload/news/files/kimolesoboraximelope.pdf
- http://paolacaone.eu/userfiles/files/boxezotutefumomeduri.pdf
- https://polinagerz.ru/wp-content/plugins/super-forms/uploads/php/files/lhb2olruh99mjv3omf5krr2kuu/61205161815.pdf
- https://treasurehunterdetectors.com/ckfinder/userfiles/files/nixebifodokesubarare.pdf
- http://agro-pasz.pl/ckfinder/userfiles/files/dosujupadutijogenuz.pdf
- http://ozdesignhouse.com/app/webroot/uploads/files/73471065157.pdf
- http://miryangpension.com/FileData/ckfinder/files/20210911_5D0BCDD432E35DC9.pdf
- http://195exim.com/datas/files/70758020295.pdf
- http://teedinmaesai.com/user_img/file/27588237792.pdf
- https://umutisi.com/umut/upload/files/puxataruwalonin.pdf
- https://feedproxy.google.com/~r/Uplcv/~3/3vuEKuznOb8/uplcv?utm_term=how+to+view+saved+wifi+password+android
- 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_off0000e3bd.bine98162332bde026c649ceac62792dd5582dde36cd389c17b05725e3a65f54c2b |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xE3BD | 10588 bytes |
font_01_sfnt_off0000fc14.bin9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xFC14 | 16792 bytes |
font_02_sfnt_off00011426.bin5c9c11bcb88caeeeb4558f81a72a4962eb1f530ce084b465fe3299cdb1f0a260 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x11426 | 19452 bytes |
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