MALICIOUS
164
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
The PDF contains embedded JavaScript and numerous external URIs, many of which point to compromised CMS uploads or disposable hosting, indicating a link farm designed to distribute malware. The ML classifier and ClamAV detection strongly suggest malicious intent, likely phishing or malware distribution, with the embedded JavaScript potentially serving as a downloader or exploit trigger.
Machine Learning
- Nyx PDF Classifier malicious score 0.9947
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://catamma.ru/uplcv?utm_term=marvel+vs+capcom+infinite+free+download+for+android PDF link annotation
- http://ruihuitax.com/files/file/6104688482.pdfIn PDF document text
- http://gitimohammadilakhimpur.org/ckfinder/userfiles/files/54088563573.pdfIn PDF document text
- https://atrax.hr/files/wileg.pdfIn PDF document text
- https://www.iieng.org/editor/ckfinder/userfiles/files/dimogisuvofujamujonal.pdfIn PDF document text
- http://omniatel.it/wp-content/plugins/formcraft/file-upload/server/content/files/1614cdf89588e2---2629017099.pdfIn PDF document text
- https://shen-su.eu/gfx/userfiles/files/pexonuzupapezigegel.pdfIn PDF document text
- https://best-turbos.com/wp-content/plugins/super-forms/uploads/php/files/d26f413f253310680c8758426a0d5761/sabasezaw.pdfIn PDF document text
- https://nnt52.ru/userfiles/file/dujebetodi.pdfIn PDF document text
- http://asiadomainstore.com/userfiles/file/45699597156.pdfIn PDF document text
- https://akilanews.com/ckfinder/userfiles/files/52451725351.pdfIn PDF document text
- http://kazenergy.kz/wp-content/plugins/formcraft/file-upload/server/content/files/1613895e4a794d---10519560549.pdfIn PDF document text
- http://infoegrafica.com/userfiles/files/topon.pdfIn PDF document text
- http://hourinkan.net/js/upload/files/82561163188.pdfIn PDF document text
- http://tweddlefoto.com/files_contenidos/upload/files/87207821051.pdfIn PDF document text
- http://gardatrans.com/content/Files/wazunu.pdfIn PDF document text
- https://projetounificado.com/uploads/files/rinozulirarod.pdfIn PDF document text
- http://fatamorgana.fr/uploads/assets/file/beledaw.pdfIn PDF document text
- https://xn--nmqu14inmf.com/upload/files/19272153804.pdfIn PDF document text
- https://cevhertemizlik.com/userfiles/files/91351839965.pdfIn PDF document text
- http://kommunikator.nu/demo/userfiles/file///99826560762.pdfIn PDF document text
- http://crosswaysrecruitment.com/userfiles/file/wemowimufugatilipubup.pdfIn PDF document text
- https://soudurelausiere.com/upload/editor/file/1653135412.pdfIn PDF document text
- http://nbc.com.vn/ckfinder/userfiles/files/fuvixesomalisijum.pdfIn PDF document text
- http://eng.sut.ac.th/tce/2016/administrator/ckfinder/userfiles/files/29789080577.pdfIn PDF document text
- http://cissi.it/userfiles/files/xivigurun.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_off0000b279.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xB279 | 17168 bytes |
SHA-256: 7fe09ebaed67856bf5a876f60f2572157a9ef06494f59b21f7a2ed1f04443930 |
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font_01_sfnt_off0000dd87.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xDD87 | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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font_02_sfnt_off0000f59e.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xF59E | 10924 bytes |
SHA-256: 0a76e6ca5cb2ec9940959026fb636e5d4c40270df71baf0897e2ef55a944bc2c |
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