MALICIOUS
164
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
This PDF file was flagged by multiple heuristics as malicious, including a high ML score and ClamAV detection as a phishing trojan. It contains an embedded JavaScript stream and a link farm pointing to compromised WordPress uploads and disposable hosting. The primary purpose appears to be redirecting users to malicious sites, likely for phishing or further malware delivery.
Machine Learning
- Nyx PDF Classifier malicious score 0.9951
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 http://wxmx.cn/upload/ckimg/files/202109112051533055.pdf
- http://domoticasociale.it/immaginiNewsletter/file/gujilixiputajesowuva.pdf
- http://gillsandgeckos.com/userfiles/file/32253342414.pdf
- https://cristalparkhotel.com.ve/ckfinder/userfiles/files/depitoboxafironowaxe.pdf
- https://www.shamshabaddiocese.org/files/js/ckfinder/userfiles/files/12907885289.pdf
- https://growlocals.com/wp-content/plugins/super-forms/uploads/php/files/0c25d69a46d90f5fc499caf35942352b/zajoxizozudiritupu.pdf
- http://giadinhlaurenso.org/upload/files/31179123619.pdf
- https://infravoip.com/wp-content/plugins/super-forms/uploads/php/files/79bfe0800f5c317505eb69c053de3446/84913560427.pdf
- https://e-ssuances.com/ckfinder/userfiles/files/juxebogokigof.pdf
- https://kingyao.com/uploadfiles/files/20210908_065600_7153.pdf
- https://speculatio.in/userfiles/file/35549950474.pdf
- https://beautifullifeuk.com/wp-content/plugins/super-forms/uploads/php/files/5df96521b8eae833f1dc85cfeaf03c52/jevadokapexudaxesevinamim.pdf
- https://lentes123.com/aym_image/files/repogobevagoju.pdf
- https://habibitoursegypt.com/ckfinder/userfiles/files/lukilafokofi.pdf
- https://dancleland.com/img/upload/file/pomano.pdf
- https://commonlawhouse.in/userfiles/file/98117736095.pdf
- https://ibextrail.com/editor-images/foxerenudub.pdf
- http://shrlie.com/upload_fck/file/2021-9-6/20210906080029818074.pdf
- http://104408017.linker.tw/files/37456055569.pdf
- https://bruceleevideos.org/images/file/85799136250.pdf
- http://yer-krasnodar.ru/ckfinder/userfiles/files/kejifaruvolegiti.pdf
- http://diagnosticaedilizia.com/userfiles/files/14240813226.pdf
- http://www.salpasafarit.fi/tiedostot/files/57777825979.pdf
- http://noithatphathuy.com/Images_upload/files/49123284423.pdf
- https://feedproxy.google.com/~r/skout/mBVl/~3/fzgW7-mxBc0/uplcv?utm_term=mass+effect+andromeda+multiplayer+classes
- 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_off0000b99a.bin9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xB99A | 16792 bytes |
font_01_sfnt_off0000d1ac.binea8021d4ec117362e4294ce02d363cd177883ec33f9d3f697a2160bc47358371 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xD1AC | 16748 bytes |
font_02_sfnt_off0000fc5d.bin6ca3d5429b87ba4faed2fc2d0c80c42cf47dfabed54e64212306935e43ec19ce |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xFC5D | 10988 bytes |
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