MALICIOUS
196
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
The PDF contains multiple heuristics indicating it is part of a link farm, with several URLs pointing to compromised CMS uploads. The 'SE_PASSWORD_ARCHIVE_LURE' heuristic suggests the document is designed to trick users into downloading a password-protected archive, a common tactic to bypass security scans. The ClamAV detection and ML classifier further support its malicious nature, likely as a phishing or trojan delivery mechanism.
Machine Learning
- Nyx PDF Classifier malicious score 0.9835
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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Password-protected archive handoff high SE_PASSWORD_ARCHIVE_LUREDocument gives password instructions for an archive or attachment — often used to keep payloads encrypted until after gateway scanning
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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://ladychief.com/wp-content/plugins/super-forms/uploads/php/files/a0ff2536a1210ed9b51a5ffb1d24b97c/44700568212.pdf
- https://castel.ro/userfiles/file/99244825966.pdf
- http://yaqeen-eg.com/userfiles/file/fadopewud.pdf
- https://cuisinescartier.ca/upload/editor/file/patakesodosuvobib.pdf
- https://wacee.net/wp-content/plugins/formcraft/file-upload/server/content/files/160b8e33edbff8---28805073573.pdf
- https://macleanpinesdrivingschool.com.au/wp-content/plugins/super-forms/uploads/php/files/182079e4b937ec1f2bfc0ce64ac67086/nazosebimiwab.pdf
- https://soechi.id/userfiles/file/tuxarepusotexamitepanoxud.pdf
- http://pogservice.ru/userfiles/file/gamujajerurareb.pdf
- http://stevis.cz/files/file/47000496363.pdf
- https://fonixkoncert.hu/upload/file/84149127931.pdf
- https://wscnaturalhealings.com/wp-content/plugins/super-forms/uploads/php/files/19e14ade560c993d298424c474098a5c/sokiromalakeperuwa.pdf
- https://www.novet.de/wp-content/plugins/formcraft/file-upload/server/content/files/160e41e7cef05d---42749054694.pdf
- https://k-kompany.ru/wp-content/plugins/super-forms/uploads/php/files/0cf3b4eabede279d7f5f37ac8df01bcd/11665185524.pdf
- http://jamoncup.es/wp-content/plugins/formcraft/file-upload/server/content/files/160c11aa1f2238---93883063171.pdf
- https://webgirls-studio.com/wp-content/plugins/formcraft/file-upload/server/content/files/160b83122be5b7---zogedaneruferar.pdf
- http://chicagohalo.com/wp-content/plugins/formcraft/file-upload/server/content/files/160c4e882cd46f---nonirese.pdf
- http://luatsutiengtrung.com/app/webroot/uploads/files/72571300859.pdf
- https://vegastel.eu/components/com_mijoshop/opencart/image/data/files/mikaf.pdf
- http://donleroy.net/customer/3/d/9/3d947ad6ce2568d98b832ccf5548371bFile/97677690794.pdf
- http://smcertificationservices.com/userfiles/files/tudumutubevupur.pdf
- https://ontime-taxi.kg/wp-content/plugins/super-forms/uploads/php/files/d4e0dac761d83e061a83bc3be4e38fad/34553094773.pdf
- https://apoiotelecom.com/imagens/img_fckeditor/file/xabowalojodufumetupafo.pdf
- https://perleyparish.org/wp-content/plugins/super-forms/uploads/php/files/45db39eb7b51221438da7188f0c8ef4d/wegilamepikikij.pdf
- http://bukharageorgia.com/sites/default/files/file/20249420907.pdf
- http://espacioschillout.es/images/admin/file/82193526510.pdf
- http://mgmkt.com.br/wp-content/plugins/formcraft/file-upload/server/content/files/1607ea4a7a7131---todevotisegukovasime.pdf
- https://feedproxy.google.com/~r/Uplcv/~3/zMnd8XtcwSM/uplcv?utm_term=como+dibujar+caricaturas+animadas+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_off0000fecd.binf7e93664e7514d3476e80988f88e4b51858eb3eeaba4a2c11b8f092b70457255 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xFECD | 11004 bytes |
font_01_sfnt_off0001181e.binc28d8943a29d936a47d83bb7d3881f2cbaddc8d4826e3335dca387940d9fa7cc |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x1181E | 18332 bytes |
font_02_sfnt_off000146b3.bin9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x146B3 | 16792 bytes |
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