MALICIOUS
176
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1059.007 JavaScript
This PDF file was flagged by multiple heuristics, including a critical ClamAV detection and an ML classifier, indicating malicious intent. The presence of a 'Callback phishing phone lure' heuristic suggests the document is designed to trick users into calling a fraudulent number, likely for a scam. Numerous URLs pointing to potentially compromised WordPress sites and disposable hosting were extracted, indicating a distribution network for malicious content.
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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Callback phishing phone lure medium SE_CALLBACK_LUREDocument asks the user to call a phone number in billing, refund, subscription, fraud, or security context — consistent with callback phishing or tech-support scam patterns. Suppressed for legitimate-issuer (IRS/gov/official-form) documents that carry no urgency or charge/dispute escalation.
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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=videoshow+no+watermark
- http://mlead.net/images/e/file/98057450196.pdf
- http://abwvictory.com/uploads/files/zadin.pdf
- http://lctrading-gmbh.com/ckfinder/userfiles/files/nojebugovazu.pdf
- https://www.baptistenhardenberg.nl/wp-content/plugins/formcraft/file-upload/server/content/files/1613f946163a9b---35130213248.pdf
- https://millersexpress.com/userfiles/file/51713621794.pdf
- http://ckattorneys.net/customer/3/d/9/3d947ad6ce2568d98b832ccf5548371bFile/39644596062.pdf
- http://dkind.net/userData/board/file/33823064298.pdf
- http://gzky.cn/dubeite/ckfinder/userfiles/files/20210907_105233.pdf
- http://szjwwj.com/userfiles/file///ninekuzarugonudunolog.pdf
- https://thefertilizerequipment.com/d/files/wimob.pdf
- https://shiprapublication.com/uniformkontakt/userfiles/image/files/30129978432.pdf
- http://smartmedicaleg.com/wp-content/plugins/formcraft/file-upload/server/content/files/1613b96d4384d6---waxunaxisafawasoza.pdf
- https://ap-qatar.com/userfiles/files/tokonixamul.pdf
- http://vitanova-cattery.com/upload/file/lafaweronanosor.pdf
- http://japan-railpass.info/images/blog/file/38995708247.pdf
- https://hohsingfiber.com/ufiles/files/65367611588.pdf
- https://koetec.com/home/~ptow/public_html/ckfinder/userfiles/files/25352164995.pdf
- http://severstroysnab.ru/userfiles/file/54449715291.pdf
- https://www.studiorosaliabusco.it/ckfinder/userfiles/files/37261668915.pdf
- https://artedelvalle.cl/gal/files/file/30286576728.pdf
- http://old.bgk-meshkova.com/ckeditor/ckfinder/userfiles/files/gekuropimakedurexukomuka.pdf
- http://sobinco.cz/ckfinder/userfiles/files/nitelamewuze.pdf
- http://esistore.com/userfiles/file/tojoworaxejaxowudijigod.pdf
- https://vicotelecom.vn/static/source/images/file/14585648617.pdf
- https://haps.company/wp-content/plugins/super-forms/uploads/php/files/dd61f6a2d6ae16ebaafad3d5329378e2/77059169404.pdf
- https://stakeoutllc.com/wp-content/plugins/super-forms/uploads/php/files/61dde452ce7ed42df1c288242f88310a/visijujuworezojod.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_off0000c11e.bin9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xC11E | 16792 bytes |
font_01_sfnt_off0000d935.bine7c7a86483ed58fbe381481e51cfb80e5913137d5553c0d9d13876324ab25b82 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xD935 | 10616 bytes |
font_02_sfnt_off0000f158.bind8bf747a9dcb101bfed550ada0f054f284ac1744a35f6dc157286cd29d378d21 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xF158 | 16088 bytes |
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