MALICIOUS
164
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
The PDF contains embedded JavaScript and numerous external links, many of which point to compromised WordPress upload storage or are part of a link farm hosted on disposable domains. The ML classifier and ClamAV detection strongly indicate malicious intent, likely for phishing or distributing further malware. The embedded JavaScript is a common technique for executing malicious code within PDFs.
Machine Learning
- Nyx PDF Classifier malicious score 0.9840
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://laborke.ru/uplcv?utm_term=stabbing+pain+left+side+of+stomach PDF link annotation
- http://aktifmedya.com/dosyalar/files/73353846164.pdfIn PDF document text
- https://flims.atelierleuthold.ch/userfiles/files/duxotenugopi.pdfIn PDF document text
- http://ewhamd.net/upFiles/ckeditor/files/25877530429.pdfIn PDF document text
- http://minhphucvietnam.com/uploads/userfiles/file/kewixinafokuwez.pdfIn PDF document text
- http://compsult.net/userfiles/file/97757951407.pdfIn PDF document text
- https://empezo.xyz/js/ckfinder/userfiles/files/39167848077.pdfIn PDF document text
- http://acm-medicali.it/userfiles/files/40552543194.pdfIn PDF document text
- https://pergamine.com/ckfinder/userfiles/files/jebiru.pdfIn PDF document text
- https://wrd13.com/force/file/29016170614.pdfIn PDF document text
- http://surtek.biz/image/files/20150323_154404.pdfIn PDF document text
- https://chungangroup.com/uploads/files/202109241637265420.pdfIn PDF document text
- https://groupburuemas1.com/contents/files/tujaxazivudevusobo.pdfIn PDF document text
- http://fixafilm.se/userfiles/file/52208802685.pdfIn PDF document text
- http://lycee-elm.com/userfiles/file/xexazipotunanuxodinoru.pdfIn PDF document text
- http://rapet.hu/files/ganijomopuzarebubosuma.pdfIn PDF document text
- http://ontheedgeofnow.com/wp-content/plugins/formcraft/file-upload/server/content/files/161387535e6162---27568457703.pdfIn PDF document text
- https://creativesilhouettes.ca/wp-content/plugins/formcraft/file-upload/server/content/files/161511a0612a27---20098815222.pdfIn PDF document text
- https://saftanton.dk/wp-content/plugins/formcraft/file-upload/server/content/files/1613c3022a271e---lolepufuge.pdfIn PDF document text
- https://ltes2.tw-goods.com/UserFiles/files/31027767333.pdfIn PDF document text
- https://network-italia.com/file/68055774943.pdfIn PDF document text
- https://mercerapparelss.com/userfiles/files/bitulexekonavilonan.pdfIn PDF document text
- https://hoovermaids.com/wp-content/plugins/super-forms/uploads/php/files/c2890bccaa4a40a0cde1dde032acceea/38982609947.pdfIn PDF document text
- http://matonaklawfirm.com/customer/3/d/9/3d947ad6ce2568d98b832ccf5548371bFile/xapubejozu.pdfIn PDF document text
- https://brothers-music.com/ckfinder/userfiles/files/wexejuga.pdfIn PDF document text
- https://ms2oke.com/contents/files/lererorefupifumid.pdfIn PDF document text
- http://www.rosabrockenhaus.ch/ckfinder/userfiles/files/sizidibudofijozo.pdfIn PDF document text
- http://www.w3.org/1999/02/22-rdf-syntax-ns#In PDF document text
- http://purl.org/dc/elements/1.1/In PDF document text
- http://ns.adobe.com/pdf/1.3/In PDF document text
- http://ns.adobe.com/xap/1.0/In PDF document text
- http://ns.adobe.com/xap/1.0/mm/In PDF document text
- http://ns.adobe.com/xap/1.0/rights/In PDF document text
- http://dejavu.sourceforge.netIn PDF document text
- http://dejavu.sourceforge.net/wiki/index.php/LicenseIn PDF document text
Extracted artifacts 3
Files carved from inside the sample during analysis.
| Filename | Kind | Source | Size |
|---|---|---|---|
font_00_sfnt_off0000b760.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xB760 | 11180 bytes |
SHA-256: c34b3b4d209650a4d73ad4baa502093be35b2d8f0905e5b6b2caa0246c47d91d |
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font_01_sfnt_off0000d0e1.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xD0E1 | 15456 bytes |
SHA-256: fe36e4eddec83837b029114f869d6f2dbe7fae0d18604eb58427038170454529 |
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font_02_sfnt_off0000f74c.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xF74C | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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