MALICIOUS
172
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
The PDF contains embedded JavaScript and numerous external links, many of which point to disposable hosting or compromised CMS upload directories, indicating a link farm designed to distribute malicious content. The ClamAV detection and ML classifier strongly suggest this PDF is malicious, likely serving as a lure for phishing or malware delivery.
Machine Learning
- Nyx PDF Classifier malicious score 0.9948
Heuristics 8
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ClamAV: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0 critical CLAMAV_DETECTIONClamAV detected this file as malware: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0
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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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Urgency / deadline lure low SE_URGENCY_LUREDocument contains urgency or deadline language ('account will be terminated', 'action required within 24 hours', etc.) — useful context, but low-signal without other findings
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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://ambulanceservice.pl/userfiles/file/naferilodevolibineke.pdf
- http://lnshiyue.com/userfiles/file/20210625231932_113019722.pdf
- https://jclifeschools.org/wp-content/plugins/super-forms/uploads/php/files/89b4dddbeac9b8b13bdf380adad0e3a1/vobavek.pdf
- http://tsutae-f.com/js/upload/files/kadijujamixupi.pdf
- http://jmestateplanning.com/customer/3/d/9/3d947ad6ce2568d98b832ccf5548371bFile/xilokofupugep.pdf
- https://unique.global/wp-content/plugins/super-forms/uploads/php/files/519a2f6952ecc60e834c993275b6479f/69090723331.pdf
- https://jollytime.ru/wp-content/plugins/super-forms/uploads/php/files/014a56938ab071b7e037c19f1e7db196/gajifugosiruko.pdf
- https://lightspec.com/wp-content/plugins/super-forms/uploads/php/files/76bb6330839dc5babfef4b0491cc23a8/kexawugavuzise.pdf
- http://intechsol.kz/wp-content/plugins/formcraft/file-upload/server/content/files/1606d8a7276c84---57237644853.pdf
- http://tehnicgaz.eu/files/file/54137061317.pdf
- https://carstenrath.com/wp-content/plugins/super-forms/uploads/php/files/h5liaq3hbb0qrpknim8gof3oa7/98572557973.pdf
- https://kisikana.hr/userfiles/file/zojukesubuxiwives.pdf
- https://robinio.de/wp-content/plugins/super-forms/uploads/php/files/ir5o3qb86q6lrnbfggn9sbh9ta/rivubef.pdf
- http://tafgambiatours.com/userfiles/file/jiferadolexiwozuxov.pdf
- http://wawa757.com/uploads/files/safojudalin.pdf
- https://eclipsetheaters.com/wp-content/plugins/formcraft/file-upload/server/content/files/16081399fe2968---78630582678.pdf
- http://pnmanagementsolutions.in/uploads/83526133693.pdf
- http://shssailors1969.com/clients/3/36/366f78b21138e0f8005dfe6cc5e09e30/File/71402062833.pdf
- https://www.andeanskyline.com/wp-content/plugins/formcraft/file-upload/server/content/files/160a91925efd50---9827095382.pdf
- https://www.higher-energy-trampolineclub.com/wp-content/plugins/formcraft/file-upload/server/content/files/16097b02e366ce---jiferewejidasiwaloti.pdf
- http://traditionsradio.com/wp-content/plugins/super-forms/uploads/php/files/ueq7cb3c44n48m70rh7ud54qs5/zazaxojitomidaruxegokele.pdf
- http://katheran.com/clients/55933/File/93165585065.pdf
- https://www.arphplumbing.co.uk/wp-content/plugins/super-forms/uploads/php/files/dlm7dcg49ji8qbbmj6fk3ppbmp/fuxafi.pdf
- https://feedproxy.google.com/~r/Uplcv/~3/BvfzZFkJO3s/uplcv?utm_term=customer+service+and+the+role+of+word+of+mouth
- 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_off0000f7eb.bin3f7690f4de559c827d3fa83329ea54692546b7a0bebdebd824ef6b3783aa2dad |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xF7EB | 11024 bytes |
font_01_sfnt_off00011171.bin9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x11171 | 16792 bytes |
font_02_sfnt_off00012983.bin820ed6b832671bb92c3ce9f38ccdeb29f9b89bb639a54e7e2bd0b4091e0d564b |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x12983 | 17284 bytes |
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