MALICIOUS
164
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
This PDF file contains embedded JavaScript and numerous external URLs, many of which point to compromised websites or disposable hosting. The heuristic 'PDF_SEO_DISPOSABLE_LINK_FARM' indicates a link farm structure, suggesting the primary purpose is to redirect users to malicious sites. The embedded JavaScript likely facilitates the redirection or further malicious activity.
Machine Learning
- Nyx PDF Classifier malicious score 0.9950
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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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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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://krisoc.ru/uplcv?utm_term=android+browser+won+t+load+pages
- https://www.acta-mobilier.fr/ckfinder/userfiles/files/dotupobunegipanisom.pdf
- http://hurtmar.pl/Upload/file/rimab.pdf
- https://ourlady-schools2.com/userfiles/files/69151295302.pdf
- https://thuaphatlaihanoi.net/uploads/files/27116805425.pdf
- https://namratalakhotia.com/userfiles/files/64943771002.pdf
- http://toyotaprius-custom.com/js/upload/files/2222757964.pdf
- http://www.thediethub.in/wp-content/plugins/formcraft/file-upload/server/content/files/1614305fc808a7---gomejofulurifexu.pdf
- https://genesisbehaviorcenter.com/wp-content/plugins/super-forms/uploads/php/files/11d9012d4f621679799f87e8382e6376/22760925268.pdf
- http://scouttautomotive.com/editor_uploads/system/files/gawipeguvusanagifuz.pdf
- http://www.saveurspoitoucharentes.com/admin/ckfinder/userfiles/files/jarekorapelotepusigobuso.pdf
- https://www.die-umzugsfabrik.com/wp-content/plugins/formcraft/file-upload/server/content/files/1613d6db5e4581---73416442472.pdf
- http://dalnoboy.net/data/filestorage/upload/files/xijedo.pdf
- https://livnica-metalurg.com/images/pages/file/41796134691.pdf
- http://kirsanov-maslo.ru/uploads/bojesobowifosakogudixixib.pdf
- http://geology.ie/wp-content/plugins/formcraft/file-upload/server/content/files/16136a937e5f9b---37028104176.pdf
- http://kleinschadenexperte.de/userfiles/file/823012274.pdf
- http://truhlarstvisollner.cz/data/file/35566144272.pdf
- http://weighlessthisyear.com/ckfinder/userfiles/files/54336491700.pdf
- http://koreanhotpot.com/uploads/files/87357940438.pdf
- https://europawindow.com/app/webroot/img/main_content/files/nadige.pdf
- http://rklatex.com/userfiles/file/75314962348.pdf
- https://mehreganimaging.com/images/upload/files/ruzowuferubelikibebuvoxod.pdf
- http://hataylezzeti.com/resimler/files/kuwoborul.pdf
- http://livelyway.com/ckfinder/userfiles/files/7080553220.pdf
- http://elcwma.com/customer/3/d/9/3d947ad6ce2568d98b832ccf5548371bFile/87867241391.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_off0000b004.bin79b26787bdf8adff188d8ba16aeb1ae170240c0f8409a779e0731287d73824d7 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xB004 | 10772 bytes |
font_01_sfnt_off0000c894.binee819cadc9d0fd9b1b9a6f6ba3eb6392f2729dfce08975b71e6478dc93a8f162 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xC894 | 14764 bytes |
font_02_sfnt_off0000edf4.bin9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xEDF4 | 16792 bytes |
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