MALICIOUS
164
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1059.007 JavaScript
The PDF contains embedded JavaScript and a large number of external URLs, many of which are hosted on compromised or disposable domains, forming a link farm. The URLs are disguised as download links for software, suggesting a phishing or malware distribution attempt. The ML classifier and ClamAV detection strongly indicate malicious intent.
Machine Learning
- Nyx PDF Classifier malicious score 0.9917
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://queure.ru/uplcv?utm_term=naruto+ultimate+ninja+storm+3+download+apk
- https://www.domaine-de-la-ferme.fr/ckfinder/userfiles/files/39566912414.pdf
- http://aprt1day.ru/file/joturijivodibotimogaxa.pdf
- https://livstyle.ro/home/livstyle/public_html/uploads/files/bizazu.pdf
- http://naosgym.com/userfiles/files/bipulezirukolo.pdf
- http://lafenicealcamo.it/userfiles/files/gapazubex.pdf
- http://ckrestaurantgroup.com/ckfinder/userfiles/files/pafanavefozap.pdf
- http://cn-junsheng.com/upload/file///202192194868826.pdf
- https://equator-maritime.com/userfiles/file/rulor.pdf
- https://hchoanglong.vn/userfiles/file/78298993901.pdf
- http://fohow77.ru/upload/file/pogirobekupo.pdf
- http://ulleungroadtour.com/FileData/ckfinder/files/20210916_102B061EFBB98856.pdf
- http://themadthinker.com/temp/vinney/HTML/userfiles/file/2672606875.pdf
- https://maggies-handmade.com/UserFiles/files/fabodukurul.pdf
- http://crystalnymph.by/wp-content/plugins/super-forms/uploads/php/files/f602be8a2142c332e2b2af1e7f0f25cd/zodonewanurotinok.pdf
- https://simondaulte.com/ckfinder/userfiles/files/tuxageweximadiwibonepofo.pdf
- https://tfnd.org/wp-content/plugins/super-forms/uploads/php/files/7f227ec7d1a8f5276a9a57dc2989634e/nokakuzijozudetegu.pdf
- http://friend5190.xyz/js/ckfinder/userfiles/files/boxesutapa.pdf
- http://reklamaopole.pl/userfiles/file/repobij.pdf
- https://dlt-nkp.com/fileupload/file/zuxovo.pdf
- https://tierrettung-in-katalonien.org/ckfinder/userfiles/files/60242284065.pdf
- http://fullerton.kopanramen.com/uploads/files/90097248915.pdf
- http://sakirnoopo.ru/wp-content/plugins/super-forms/uploads/php/files/83b55338bbc0e3c15f4a696ec941a720/21394530641.pdf
- http://mopi.eu/ckfinder/userfiles/files/xekodok.pdf
- https://vroa.pl/chplusfiles/file/seboxixijo.pdf
- http://livelyway.com/ckfinder/userfiles/files/nozavajunarizasemiwi.pdf
- http://www.tramag.pl/upload/file/10692000565.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_off0000d5eb.bin892c7c4f73c2fc6e7c9f6badb8c6a96d9874d824c44149e46a35da8bd3535021 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xD5EB | 11112 bytes |
font_01_sfnt_off0000efdb.bin639456c77ace86d0eb173528a28648dc92006bf8b810a268e5aa3db47ed4b288 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xEFDB | 19116 bytes |
font_02_sfnt_off0001214c.bin9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x1214C | 16792 bytes |
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