MALICIOUS
164
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
The PDF contains embedded JavaScript and numerous external links, many pointing to compromised or disposable hosting. The heuristic 'PDF_SEO_DISPOSABLE_LINK_FARM' indicates a link farm structure, and 'ML_NYX_PDF_MALICIOUS' along with ClamAV detection strongly suggest malicious intent. The embedded JavaScript likely facilitates the redirection to these malicious sites, potentially for phishing or malware delivery.
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://buka.ru/sadm_files/32218534978.pdf
- https://www.utn.ac.cr/sites/default/files/files/lezozixunezexawesi.pdf
- https://krusomying.com/data/file/40218146666.pdf
- https://registracijakoncar.com/webroot/js/ckfinder/userfiles/files/lurizitojeriwibibopabatan.pdf
- https://thepetrichortouch.com/wp-content/plugins/super-forms/uploads/php/files/pbpeca80n6nolncejmcdo9nfac/2601564539.pdf
- http://www.ondebiz.com/userfiles/file/43945935231.pdf
- https://apexforestservices.com/wp-content/plugins/formcraft/file-upload/server/content/files/16152d486ba788---xovogupufegok.pdf
- http://antwerp-rentals.com/wp-content/plugins/formcraft/file-upload/server/content/files/1613f44fc7d908---67047218030.pdf
- http://www.vitrierbxl.be/wp-content/plugins/formcraft/file-upload/server/content/files/1613742c167a94---jejepovuk.pdf
- http://hvpeds.com/upload/contents/file/19588336671.pdf
- https://simovi.mx/wp-content/plugins/formcraft/file-upload/server/content/files/1614a0d927ef4a---gidosomakarozoziziwoxusan.pdf
- http://hc6999.com/userfiles/files/7402524154.pdf
- http://taikenplan.jp/ckfinder/userfiles/files/mixekuzop.pdf
- http://dragoniresorts.com/userfiles/27576887636.pdf
- https://bacninhonline.com/webroot/img/files/59874526231.pdf
- https://slotsonline.ro/app/webroot/files/userfiles/files/50517444231.pdf
- https://ceadersvalet.com/wp-content/plugins/formcraft/file-upload/server/content/files/16148b467ce6c4---15688747164.pdf
- http://mirembeestate.co.ug/wp-content/plugins/formcraft/file-upload/server/content/files/161478de3b907e---99395765200.pdf
- http://dush-kz.ru/uploads/fck/file/finamuviludefegef.pdf
- https://sarna-zapiekanki.pl/ckfinder/userfiles/files/92760951688.pdf
- https://fobh.net/userfiles/files/gonajat.pdf
- http://floridadressyourhome.com/uploaded_files/userfiles/files/fukogunitojevopasakus.pdf
- https://karinbentum.nl/uploads/file/88065377589.pdf
- http://cathyourhair.nl/js/ckfinder/userfiles/files/72362897599.pdf
- https://bientannamhuy.com/wp-content/uploads/files/nujalo.pdf
- https://feedproxy.google.com/~r/Uplcv/~3/cv9VXjIrmdE/uplcv?utm_term=3+player+golf+games+wolf
- 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_off0000b214.bin3caddf05910654d6e501f5799087b16bd42ad06b22e2a1c931d3052718f55e4e |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xB214 | 15032 bytes |
font_01_sfnt_off0000d857.bin9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xD857 | 16792 bytes |
font_02_sfnt_off0000f06e.binab885ae9a888d10fa442c0cbd407760e521a11956c7673e77b2aa94d175acc0d |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xF06E | 10680 bytes |
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