MALICIOUS
164
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
The sample is a PDF document flagged by ClamAV as Pdf.Phishing.Trojan and by an ML classifier as malicious. It contains embedded JavaScript and a large number of external links, many pointing to compromised WordPress sites or disposable hosting, suggesting a phishing or malware distribution attempt. The presence of embedded JavaScript indicates an attempt to execute malicious code within the PDF viewer.
Machine Learning
- Nyx PDF Classifier malicious score 0.9974
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://coretry.ru/uplcv?utm_term=how+to+remove+safe+mode+on+your+phone
- http://makaifruits.com/wp-content/plugins/formcraft/file-upload/server/content/files/1613de44b52a40---38913038278.pdf
- https://ismet.com.br/ckfinder/userfiles/files/55567818305.pdf
- http://sql110.com/pic/76687304590.pdf
- http://multiflex.ru/userfiles/file/xafojitik.pdf
- https://channeloflove.com/ckfinder/userfiles/files/letizefotipilab.pdf
- https://www.fmworks.com.tr/wp-content/plugins/super-forms/uploads/php/files/u4utp5a0fja8s91a0onou4447f/ravuweposipopetozir.pdf
- https://gifarlcm.com/upfiles/editor/files/varozodujokas.pdf
- https://birotex.rs/images/files/27829184353.pdf
- http://mascotdd.com/file_media/file_image/file/judokela.pdf
- https://hanakspotrebice.cz/eshop/ckfinder/userfiles/files/bomoxumujabojopil.pdf
- http://xn----1-6cdapb2bdyqawnpcindqfc.xn--p1ai/media/file/21448008843.pdf
- http://md-servicios.com/userfiles/file/96155894856.pdf
- https://landviewdesign.com/userfiles/file/juzaki.pdf
- http://delfosventures.net/userfiles/files/98209304694.pdf
- http://garage-ys.info/js/upload/files/35343496503.pdf
- https://spcinternational.in/ckfinder/userfiles/files/2990848532.pdf
- https://denimder.org/resimler/files/pobevelodixufemomuxigenor.pdf
- http://csc0532.com/userfiles/file/20210905212506_1u7o5a.pdf
- http://nfrostov.ru/upload/files/74011645796.pdf
- http://hanifeugur.com/image/files/jijaxafi.pdf
- http://kleinschaden-expert.de/userfiles/file/4711810842.pdf
- https://anaksemut.com/contents/files/46990749300.pdf
- https://www.bocamvigliesrooms.com/wp-content/plugins/super-forms/uploads/php/files/0f0a4ed4f4d6ef9575366df7bea31ac2/kuvozoxewitepomiwipom.pdf
- https://kar360.com/resimler/files/23186573517.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_off0000da48.bin9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xDA48 | 16792 bytes |
font_01_sfnt_off0000f25f.bin17cdeca62ea86deaa02fb0915f2de159330bd67ad26619c2a95042c1ffe6011a |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xF25F | 10980 bytes |
font_02_sfnt_off00010bbf.bined3ff818839d865a47ce3c45bb4895d6aa9d58ea4b0c2ee776d810a95ed5657f |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x10BBF | 18408 bytes |
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