MALICIOUS
164
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
The PDF contains an embedded JavaScript stream and numerous external URIs, many of which point to compromised or disposable hosting. The heuristic 'PDF_SEO_DISPOSABLE_LINK_FARM' indicates a link farm structure, suggesting the document's purpose is to redirect users to potentially malicious sites. The ML classifier and ClamAV detection strongly support a malicious classification, likely related to phishing or malware distribution.
Machine Learning
- Nyx PDF Classifier malicious score 0.9977
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://copacndg.com/images/uploads/files/73064538159.pdf
- http://ecovn.vn/uploads/news_file/zonasobibokojaxora.pdf
- https://bosgo.mn/uploads/files/pokipugaditurev.pdf
- http://natur-pet.cz/webpagebuilder/ckfinder/userfiles/files/7117447804.pdf
- http://royalgoodviewresort.com/Uploads/file/xonovusezijujexefemedef.pdf
- http://worksafeorg.com/wp-content/plugins/super-forms/uploads/php/files/1g8thihf3837uckbrnp92kg6f6/nitexo.pdf
- http://www.fan-consultants.com.tw/ezadmin/ckfinder/userfiles/files/19197174618.pdf
- https://daulte.com/ckfinder/userfiles/files/49435817148.pdf
- https://www.pelicanfinancialnetwork.com/ckfinder/userfiles/files/93422427046.pdf
- http://denis-lefebvre-services.com/fichiers/file/90996560350.pdf
- https://www.crossfitparamaribo.com/wp-content/plugins/formcraft/file-upload/server/content/files/1614207aa2f7bc---88379683722.pdf
- http://e-park.es/img/uploads/files/lozewisuvabo.pdf
- https://palezieux.com/ckfinder/userfiles/files/fubuzas.pdf
- http://topstec.com/d/files/lelugixagamujedisajoma.pdf
- https://spyboarcams.com/files/99361460661.pdf
- http://thanhtindesign.vn/uploads/image/files/sutojimexukag.pdf
- http://www.musicboxpiano.com/contentfiles/37585365100.pdf
- http://peach2560.xyz/js/ckfinder/userfiles/files/xoxijakog.pdf
- http://www.holderit.com/wp-content/plugins/formcraft/file-upload/server/content/files/16132fb3c1f113---luruguzodi.pdf
- http://rovitek.com/userfiles/file/3969111473.pdf
- http://bluecreator.biz/ckfinder/userfiles/files/48016528453.pdf
- http://www.cuerpomenteyespiritu.es/wp-content/plugins/formcraft/file-upload/server/content/files/161426ceeb7c73---82116819189.pdf
- http://bridgesonthepark.com/wp-content/plugins/formcraft/file-upload/server/content/files/161370e24f32d9---93628454599.pdf
- https://feedproxy.google.com/~r/1eyvgo/aqOO/~3/1xuhb7AK25c/uplcv?utm_term=miui+12+release+date+redmi+note+9+pro
- 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_off0000e4ff.bin95d19b732b2e3c5ef824f04c0ab1faf5629e62cb01ffe35e6cd91cce5f005f23 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xE4FF | 18096 bytes |
font_01_sfnt_off00011484.bin7752e14d5f7dcefaea11a0c23d91894afc81b9a110c12aaaf75b37ae4cacb770 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x11484 | 10984 bytes |
font_02_sfnt_off00012e14.bin9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x12E14 | 16792 bytes |
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