MALICIOUS
216
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1203 Exploitation for Client Execution
This PDF file was detected as malicious by ClamAV and an ML classifier, indicating a high likelihood of malicious intent. The 'SE_BROWSER_INSTALL_LURE' heuristic suggests the document is designed to trick the user into installing a fake browser extension or update, a common social engineering tactic. Several URLs point to compromised CMS uploads and link farms, likely serving as download locations for malicious payloads or further stages of the attack.
Machine Learning
- Nyx PDF Classifier malicious score 0.9948
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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Browser extension / update installation lure high SE_BROWSER_INSTALL_LUREDocument tells the user to install a browser extension, plugin, viewer, or browser update to view content — a common social-engineering path for credential theft and malware installation
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Clickable URI points to raw IP address medium PDF_URI_IP_LITERALPDF contains a clickable HTTP(S) action whose host is a literal IPv4 address. Legitimate documents normally link to named domains; raw-IP destinations are common in disposable phishing and malware-delivery infrastructure.
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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 https://broadstripe.com/wp-content/plugins/super-forms/uploads/php/files/45c1afbfb6c3627a6a29e0e68fa35313/12823530531.pdf
- https://sellos-mecanicos.com/wp-content/plugins/super-forms/uploads/php/files/4334217acb189a7457b8e899437d38e7/89925318039.pdf
- http://www.jindatunnel.com/up_files/file/negano.pdf
- http://www.chicagoalphas.com/wp-content/plugins/formcraft/file-upload/server/content/files/16092170cdb185---13823319848.pdf
- http://xperion.hu/wp-content/plugins/super-forms/uploads/php/files/46a44248d7bdafcd4b12120e9eb24744/solobomova.pdf
- http://clinicacomciencia.com.br/wp-content/plugins/formcraft/file-upload/server/content/files/160c0eb0d90cb5---pubewipusibokoxelesasin.pdf
- http://bukharageorgia.com/sites/default/files/file/97018576538.pdf
- http://www.tecnotrefg.it/wp-content/plugins/formcraft/file-upload/server/content/files/1608e87e8f0f22---jonaven.pdf
- http://dhsclassof70.com/clients/d/d1/d13f49183e6b2ef720c1f353b43de0f2/File/4308073281.pdf
- http://tfforming.ru/d/files/85256449184.pdf
- http://scissortailfarms.com/wp-content/plugins/formcraft/file-upload/server/content/files/160b74d31ecd10---sakagetanowitilotuvokaxe.pdf
- https://seataclighting.com/wp-content/plugins/super-forms/uploads/php/files/861f7d8c2d64fdd71e36e796bd3f05b9/zazurovidowajekijikir.pdf
- http://businessdevelopmentcenter.pl/uploads/userfiles/files/nepeluk.pdf
- http://104.156.58.56/~web2inbox/wp-content/plugins/formcraft/file-upload/server/content/files/1608d78f308c0d---fevukepuwixunokavuwozakiz.pdf
- https://www.gsccn.it/wp-content/plugins/formcraft/file-upload/server/content/files/160783183f3983---31871014852.pdf
- http://harryreichert.de/uploaded_pics/News/file/lawibuk.pdf
- http://www.linkkorea.co.kr/wp-content/plugins/formcraft/file-upload/server/content/files/160a5e9b1e5737---7092593459.pdf
- http://jagatjyotischool.org/jagatjyotischool/userfiles/file/lurot.pdf
- http://ckpak.com/fckeditor/userfiles/file/jasaxomuvuwufif.pdf
- http://nutronicltd.com/userfiles/file/82577603076.pdf
- https://wecafephuket.com/wp-content/plugins/super-forms/uploads/php/files/d1goq97rvg2d6ht5p74g86od9s/51942036057.pdf
- https://torrentclub.vip/wp-content/plugins/super-forms/uploads/php/files/3daf39q9jb99uebfcp1lntno82/bipewe.pdf
- http://www.risingstars.com.tr/wp-content/plugins/formcraft/file-upload/server/content/files/160815a03b01ab---43181583162.pdf
- https://webmodeli.com/wp-content/plugins/formcraft/file-upload/server/content/files/160887fff6dfc9---velegiw.pdf
- https://feedproxy.google.com/~r/1eyvgo/aqOO/~3/GLLx1DTH0VQ/uplcv?utm_term=write+five+multiples+of+9
- 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_off0000c880.bin9b56ab20abeaa8c852908df4a84c741ec89c7d4ca7e69723799d2e99f2466119 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xC880 | 10580 bytes |
font_01_sfnt_off0000e0c0.bin9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xE0C0 | 16792 bytes |
font_02_sfnt_off0000f8d2.bin6c335b82d68dc065c67a77247c765589b94b0cd70ab5c817d37b249fcd8bba9d |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xF8D2 | 16104 bytes |
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