MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
The PDF contains numerous embedded URLs that point to various domains, many of which appear to be disposable or compromised. The heuristic 'PDF_SEO_DISPOSABLE_LINK_FARM' indicates a pattern of using such links for potentially malicious purposes. The ClamAV detection and ML classifier further support its malicious nature, likely as a phishing or malware distribution vector.
Machine Learning
- Nyx PDF Classifier malicious score 0.9891
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 https://krisoc.ru/uplcv?utm_term=the+hobbit+the+desolation+of+smaug+live+stream+free
- https://dnmpaint.com/sdcc/images/file/80303962366.pdf
- https://griby.biz/ckfinder/userfiles/files/kifutudilinizefaxinoxem.pdf
- https://volnynaklad.cz/data/file/bomiramozo.pdf
- https://zniczekowalczyk.com/user_images/file/simipig.pdf
- http://moonlightmontessori.com/upload/files/ginolenoxijelezi.pdf
- http://servmed.net/userfiles/file/34347384936.pdf
- http://portableandcool.com/files/files/49339568286.pdf
- https://qfse.co/images/uploaded_files/ckfinder/files/1630807178_62dc0308b2.pdf
- http://bakefruit.com/uploads/files/202109070851494715.pdf
- http://makesrealsense.com/ckfinder/userfiles/files/kifuwu.pdf
- http://www.nandomoraes.com.br/wp-content/plugins/formcraft/file-upload/server/content/files/161301fb938880---67176327700.pdf
- https://labelmarket.eu/data/file/79605302292.pdf
- http://www.culturehousesun.org/photos/file/93259549148.pdf
- http://www.thebetterinsurance.com/wp-content/plugins/formcraft/file-upload/server/content/files/161405f568a2a3---kakadag.pdf
- http://architettomontanino.eu/userfiles/files/vijukozinamet.pdf
- http://ehomeforeclosure.org/images/file/tejalabex.pdf
- https://tabularasa.lv/sites/tabularasa/uploads/documents/files/36186487911.pdf
- https://vnjhanoi.com/upload/files/gogirulujataveme.pdf
- http://oilspecchem.com/files/gasuralemesixufofanoga.pdf
- https://sofahatinh.com/upload/files/forizoluborisisedipix.pdf
- http://icltindia.in/userfiles/file/zeruwuziganukowa.pdf
- https://at1-turbo-j3t.com/contents/files/fumabamur.pdf
- https://inclinedigital.com/wp-content/plugins/formcraft/file-upload/server/content/files/1614317086c8af---rulole.pdf
- http://rideabikenews.com/user_img/files/gatedabuburer.pdf
- http://ukwoodrecycling.com/userfiles/files/90170843971.pdf
- http://markone-tools.com/upload/files/7088862039.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_off0000b0c0.bin3f71420694b7af8a0d3123bdf30520691c9c8fec987bf13c1c7a2c6df419b218 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xB0C0 | 14556 bytes |
font_01_sfnt_off0000d4ca.bindd61510682b184deeb775b04c7a38cbf3ca811000e62c1b8f26b588a0c0c7d12 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xD4CA | 11072 bytes |
font_02_sfnt_off0000ee2c.bin9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xEE2C | 16792 bytes |
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