MALICIOUS
172
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
The PDF contains embedded JavaScript and a significant number of links, many pointing to compromised WordPress uploads or disposable hosting, suggesting a phishing or malware distribution scheme. The ClamAV detection and ML classifier strongly indicate malicious intent, likely to trick users into downloading further payloads or providing sensitive information.
Machine Learning
- Nyx PDF Classifier malicious score 0.9955
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 https://nicklason.se/ckfinder/userfiles/files/fovufilor.pdf
- http://blueview.nl/app/webroot/files/userfiles/files/vizusi.pdf
- http://konferencii.org/js/ckfinder/userfiles/files/65949532723.pdf
- http://sosonomo.com/ckfinder/userfiles/files/85683000348.pdf
- https://dolphinsolutions.net/ckfinder/userfiles/files/nesumizulelewiro.pdf
- https://aljazeerahpetroleum.ae/userfiles/files/gidexudazusedim.pdf
- https://nsstore.mx/ckeditor/ckfinder/archivossubidos/files/kegomagowigifadigefuliv.pdf
- https://labelmarket.eu/data/file/papobesopogeve.pdf
- http://dangkydoanhnghiep.org/hinhanh_fckeditor/file/meremojumaniregamezep.pdf
- https://nhaccugiare24h.com/uploads/userfiles/file/xigef.pdf
- https://gencerenerji.com/resimler/files/12981503712.pdf
- https://honghow.com/ckfinder/userfiles/files/wozegudetabewu.pdf
- http://jmdfhjl.com/fckeditor/userimages/file/1208451756.pdf
- http://mnogonomerov.ru/uploads/file/70748044885.pdf
- https://40parables.com/wp-content/plugins/super-forms/uploads/php/files/0a01b3242b45a57796b27d649bdbb0cd/78173171693.pdf
- http://miwon.com.vn/app/webroot/uploads/files/28643569431.pdf
- https://www.diktu.com/wp-content/plugins/formcraft/file-upload/server/content/files/1612fe7eb5afd9---zixafetaw.pdf
- http://juha.be/_files/file/90183936832.pdf
- https://dananeye.com/uploads/files/202109071446155153.pdf
- http://cerritos.songhakbbq.com/uploads/files/38344242665.pdf
- http://lalitas-thaimassage-spa.de/wp-content/plugins/formcraft/file-upload/server/content/files/16132cc425a6e1---44087906087.pdf
- http://gysanya.com/upload/file/210901153415256447x111cdhiicox.pdf
- http://www.megasaludips.com/wp-content/plugins/formcraft/file-upload/server/content/files/1613b13321df99---75818324274.pdf
- https://www.igescanada.com/ckfinder/userfiles/files/bepifavuw.pdf
- https://feedproxy.google.com/~r/Uplcv/~3/3vuEKuznOb8/uplcv?utm_term=messenger+over+other+apps
- 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_off0000dd45.bin5a985fdd9938dcf05579e3c0e7a25eb6651caa87c902487e6a21b4392a08c1bd |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xDD45 | 17708 bytes |
font_01_sfnt_off00010ad7.bin9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x10AD7 | 16792 bytes |
font_02_sfnt_off000122ee.bin48993325cce3bad204abb34a7d2d0f50de17f7bc7ff42b33f685dc16b7bfb8ea |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x122EE | 10452 bytes |
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