MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1204.002 Malicious Link
The PDF file was flagged by a machine learning classifier and ClamAV as malicious, specifically as a phishing trojan. Heuristics indicate it functions as a link farm, directing users to multiple external websites, some hosted on potentially compromised CMS platforms. The presence of numerous URLs, many with 'utm_term' parameters suggesting tracking or redirection, reinforces the attack pattern of luring users to external sites.
Machine Learning
- Nyx PDF Classifier malicious score 0.9975
Heuristics 6
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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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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 http://sten.kr/club/data/userfiles/file/20210909043621.pdf In PDF document text
- http://www.elsecretodelolivo.com/wp-content/plugins/formcraft/file-upload/server/content/files/1614b364519b2e---39527502196.pdfIn PDF document text
- http://www.ortodonciaelisafarache.com/ckfinder/userfiles/files/85134469937.pdfIn PDF document text
- http://gruppocreta.com/userfiles/files/pupuvavalusomoveli.pdfIn PDF document text
- http://kmkonsult.cz/userfiles/file/23799283695.pdfIn PDF document text
- https://www.peeryhotel.com/wp-content/plugins/super-forms/uploads/php/files/4476a96fc85e0f59e8ba7b7b7949db18/kevobim.pdfIn PDF document text
- https://dycmc.com/DATA/upload/files/202109260030503639.pdfIn PDF document text
- https://jnvhardoi.org/ckfinder/userfiles/files/33410924372.pdfIn PDF document text
- http://josquin-capella.de/download/lofabuxekop.pdfIn PDF document text
- http://2990592.ru/ckfinder/userfiles/files/maxuvekawebolagi.pdfIn PDF document text
- https://ipekyolumedya.com/resim_galeri/file/gudabo.pdfIn PDF document text
- https://coffotea.com/uploads/files/202109131031577221.pdfIn PDF document text
- https://oneremote.ru/wp-content/plugins/super-forms/uploads/php/files/003237f41ee9485f6d2cb3a88d893b24/muvapot.pdfIn PDF document text
- http://ckattorneys.net/customer/3/d/9/3d947ad6ce2568d98b832ccf5548371bFile/11078459146.pdfIn PDF document text
- http://tuclubcr.com/campannas/file/tinubanomatupunutaresasur.pdfIn PDF document text
- http://potlista.com/file/files/56527544476.pdfIn PDF document text
- http://gyarmatilovastorna.hu/userfiles/file/lorijoduvifixegijoxe.pdfIn PDF document text
- http://seyrimerdin.com/userfiles/file/kakejijutixipi.pdfIn PDF document text
- http://affectif.ro/data/Image/file/pogunokakajoxe.pdfIn PDF document text
- http://brilliantsolarpaneling.com/userfiles/file/lepek.pdfIn PDF document text
- http://hongphuc.vn/userfiles/file/firuguzegapesa.pdfIn PDF document text
- https://www.ogblfrontaliers.fr/wp-content/plugins/super-forms/uploads/php/files/6gilkjfdgjdrqpmddvnvhnic3i/92174165507.pdfIn PDF document text
- http://thuonghieutoancau.vn/uploads/files/losuko.pdfIn PDF document text
- http://staractivecollection.com/resimler/site/files/46899412531.pdfIn PDF document text
- http://ferrocom-spb.ru/userfiles/files/77587188938.pdfIn PDF document text
- https://feedproxy.google.com/~r/Uplcv/~3/PmAiG5ZyT-k/uplcv?utm_term=radiant+hd+apkPDF link annotation
- http://www.w3.org/1999/02/22-rdf-syntax-ns#In PDF document text
- http://purl.org/dc/elements/1.1/In PDF document text
- http://ns.adobe.com/pdf/1.3/In PDF document text
- http://ns.adobe.com/xap/1.0/In PDF document text
- http://ns.adobe.com/xap/1.0/mm/In PDF document text
- http://ns.adobe.com/xap/1.0/rights/In PDF document text
- http://dejavu.sourceforge.netIn PDF document text
- http://dejavu.sourceforge.net/wiki/index.php/LicenseIn PDF document text
Extracted artifacts 3
Files carved from inside the sample during analysis.
| Filename | Kind | Source | Size |
|---|---|---|---|
font_00_sfnt_off0000b43c.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xB43C | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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font_01_sfnt_off0000cc4e.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xCC4E | 17244 bytes |
SHA-256: 21ffbd9fe80a8e34af2c53179fb981000127e2d678ae0ff7086b853efad6d39d |
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font_02_sfnt_off0000f6ca.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xF6CA | 10060 bytes |
SHA-256: fa47a5180d38776e52b9da7ca98133da62d9a9a43f93b1c91ed588977900c11a |
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