MALICIOUS
154
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
The sample is a PDF document identified as malicious by ML classifiers and ClamAV. It contains numerous links, many pointing to compromised CMS uploads and disposable hosting, suggesting a link farm designed to redirect users to malicious sites. While no scripts were explicitly extracted, the PDF structure and heuristic firings indicate it's likely a phishing or malware distribution lure, potentially leveraging embedded JavaScript for malicious actions.
Machine Learning
- Nyx PDF Classifier malicious score 0.9183
Heuristics 5
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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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External URI info PDF_URIPDF contains an external URL action
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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://fobas.cz/userfiles/file/4220411280.pdf In PDF document text
- https://rzfmuhasebe.com/userfiles/file/53387126108.pdfIn PDF document text
- https://hssipm.com/wp-content/plugins/super-forms/uploads/php/files/28b55f3e97998c0be7ca528f1c00b759/dawulipal.pdfIn PDF document text
- http://yao-cheng.com/uploadfiles/20210703153559.pdfIn PDF document text
- https://aliencosmicexpo.com/wp-content/plugins/formcraft/file-upload/server/content/files/160bba30cce71b---24167536473.pdfIn PDF document text
- http://writtenmail.com/upload_images/file/23248955431.pdfIn PDF document text
- https://inchiriereelicopterromania.ro/wp-content/plugins/formcraft/file-upload/server/content/files/16098a528e0af8---87692656870.pdfIn PDF document text
- https://btsmstlucia.com/atomicsteps/upload/userfiles/file/sawuzovugivobete.pdfIn PDF document text
- http://automsystem.com/UploadFile/file/20210504201221716.pdfIn PDF document text
- http://www.maarsehoveniers.nl/wp-content/plugins/formcraft/file-upload/server/content/files/160a1453373800---jetebirubukirabanerotena.pdfIn PDF document text
- https://onwater.my/uploads/file/biwiriputen.pdfIn PDF document text
- https://egca.fr/userfiles/file/safomavamabitezimalun.pdfIn PDF document text
- https://inchirierielicopter.ro/wp-content/plugins/formcraft/file-upload/server/content/files/160c1385174945---pufem.pdfIn PDF document text
- https://doellefjelde-mussemarked.dk/images/newsmail/file/leleranofuzavaxikulowaxu.pdfIn PDF document text
- https://www.simcoerecovery.net/wp-content/plugins/super-forms/uploads/php/files/6e7hkbu9v9b3rdg7jbpictcfi4/duwulitemunipakip.pdfIn PDF document text
- https://amalighting.com/wp-content/plugins/super-forms/uploads/php/files/3d3beec41dc5e1216f5d435706e62c4b/37584967270.pdfIn PDF document text
- http://kashima.cc/userfiles/file/gitizuk.pdfIn PDF document text
- https://too.kg/wp-content/plugins/super-forms/uploads/php/files/a756f8e5cdd94c05af313ae98f33429a/91342036875.pdfIn PDF document text
- http://bezpieczna-strefa.pl/wp-content/plugins/super-forms/uploads/php/files/80736154c8a3acf65fa12e7e597094b3/3748106941.pdfIn PDF document text
- https://shining4u.com/wp-content/plugins/super-forms/uploads/php/files/84fdc7395b418863c288b17bfab7a394/32213605664.pdfIn PDF document text
- http://stressmanagement-karriere.de/userfiles/file/45849318645.pdfIn PDF document text
- http://lovepetclinics.com/file_media/file_image/file/48926186478.pdfIn PDF document text
- http://gopherandsquirrelcontrol.com/admin/images/file/5233010031.pdfIn PDF document text
- http://hit-air.pro/ckfinder/userfiles/files/dabekikorejojoxisesoxof.pdfIn PDF document text
- http://aotwresort.info/ckfinder/userfiles/files/55852899445.pdfIn PDF document text
- https://feedproxy.google.com/~r/skout/mBVl/~3/3vuEKuznOb8/uplcv?utm_term=2015+raptor+700+service+manualPDF link annotation
- http://dejavu.sourceforge.netIn PDF document text
- http://dejavu.sourceforge.net/wiki/index.php/LicenseIn PDF document text
Extracted artifacts 1
Files carved from inside the sample during analysis.
| Filename | Kind | Source | Size |
|---|---|---|---|
font_00_sfnt_off0000d696.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xD696 | 11080 bytes |
SHA-256: 03e06cc1d7916b93c94976f72435150c9fd538a9e825c4d70e3b34995f96000b |
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