MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1204.002 Malicious Link
The PDF contains numerous embedded URLs, many of which point to compromised websites or disposable hosting, indicating a link farm designed to redirect users. Heuristics like 'PDF_SEO_DISPOSABLE_LINK_FARM' and 'PDF_COMPROMISED_CMS_UPLOAD_LINK_FARM' strongly suggest this malicious intent. The ML classifier and ClamAV detection further confirm the malicious nature of the file, likely used for phishing or malware distribution.
Machine Learning
- Nyx PDF Classifier malicious score 0.9974
Heuristics 6
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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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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://irlanc.ru/uplcv?utm_term=functional+javascript+pdf
- https://efnnma.org/files/file/dukijiwev.pdf
- https://www.glasswindowequipment.com/wp-content/plugins/super-forms/uploads/php/files/4efccfd96cb6d30d0a98dd5ebcbb8222/bakofazunoja.pdf
- https://konteshamamotu.com/userfiles/file/92001857211.pdf
- http://digitalpolicycouncil.org/imagenes/file/zusajedasawuzusiwiwon.pdf
- http://www.fotografoeventimilano.com/wp-content/plugins/formcraft/file-upload/server/content/files/1613c857f1cdb0---89972591765.pdf
- http://seattlebestteriyaki.com/uploads/files/rusase.pdf
- https://aitalk.vn/upload/files/juwew.pdf
- https://jlgardner.org/home/jlg/public_html/ckfinder/userfiles/files/2550257110.pdf
- http://globalsublimation.net/uploadfile/files/1161563264.pdf
- http://iswii.net/ckfinder/userfiles/files/73549491665.pdf
- https://hawkseyetravels.com/assets/ckfinder/userfiles/files/woxobatemefaridu.pdf
- http://frangarcia.eu/upload/file/158365329.pdf
- https://himarco.ir/basefile/himarcoir/files/rezibirerexosuvuw.pdf
- http://sushibelovo.ru/files/porapubopabupaziverago.pdf
- https://eletmodguru.hu/files/files/lunivemevabimilexowomuto.pdf
- https://www.marthatrotts.ca/wp-content/plugins/formcraft/file-upload/server/content/files/1613489e6d68e5---jikup.pdf
- http://gyliver.ru/files/files/badafizug.pdf
- http://tmtechvn.com/webroot/img/files/wevijudumixud.pdf
- https://qualityroofinnandsuites.com/nbloom/fckuploads/file/32670904604.pdf
- https://miet.hu/kepek/23212967922.pdf
- https://ip-pharma.net/data/files/zurikujatagu.pdf
- https://gornjastubica.hr/files/baluvurunenisobilutixurol.pdf
- https://thic.net/plugin/ce1/ckfinder/userfiles/files/zimofi.pdf
- http://kiuruvedenlukio.fi/tiedostot/file/13680181990.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_off0000dc74.bin9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xDC74 | 16792 bytes |
font_01_sfnt_off0000f48b.bind8847d1147d923a8a696bd8bb9178ab1f0204a47378254fa3d75fb28f1ba4635 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xF48B | 10756 bytes |
font_02_sfnt_off00010d5e.bin00d1894c36dc88a69e8ef86d4f0a3470c0479a6959f8d702e3562d3f75aa5789 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x10D5E | 17924 bytes |
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