MALICIOUS
196
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1204.002 User Execution: Malicious File
T1059.007 JavaScript
The PDF document contains numerous links, many pointing to compromised WordPress sites and disposable hosting, suggesting a link farm or phishing lure. The ML classifier and ClamAV detection strongly indicate malicious intent. The 'SE_CLICKFIX' heuristic suggests the document may attempt to trick the user into executing commands, likely to download and execute a second-stage payload.
Machine Learning
- Nyx PDF Classifier malicious score 0.9998
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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ClickFix social engineering attack high SE_CLICKFIXDocument instructs the user to press Win+R or paste a command into a terminal — consistent with ClickFix attacks that bypass macro restrictions by tricking users into running malicious commands directly
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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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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+find+deleted+search+history+on+google+chrome
- http://stadtbild-intervention.de/Quansis/ckfinder/userfiles/files/xojelamofis.pdf
- https://fmpride.com/wp-content/plugins/super-forms/uploads/php/files/9c926677f2a4b21033a2427b7c684239/14445461746.pdf
- http://thunderstar.cn/userfiles/file/20210501164158610684422.pdf
- http://www.ponderosafestival.com/wp-content/plugins/formcraft/file-upload/server/content/files/1608065304a44b---sorajamililikopedoj.pdf
- https://omomediacion.com/wp-content/plugins/super-forms/uploads/php/files/25d7b06bfba88eec3d88b5840c030c66/wolotixodolubebujeni.pdf
- https://michaels-limo.com/wp-content/plugins/formcraft/file-upload/server/content/files/16071f2402170c---419295241.pdf
- http://profisystem.ro/wp-content/plugins/formcraft/file-upload/server/content/files/1607a1fb84fd72---loburubonikawokemajek.pdf
- http://www.putnamtaxi.net/wp-content/plugins/formcraft/file-upload/server/content/files/16090903145f5d---72178936190.pdf
- http://www.iso-clean.fr/wp-content/plugins/formcraft/file-upload/server/content/files/160a508a80499c---35602340758.pdf
- http://cariboohose.com/userfiles/file/93927598185.pdf
- https://studio45.live/wp-content/plugins/super-forms/uploads/php/files/o7ovnk27js5pfj10s0568vq12n/19069728944.pdf
- http://abimobiliare.pl/pliki/File/menimazepifaletazumajurez.pdf
- https://cgeminfos.ma/upload/file/suniraxogemoduzo.pdf
- https://www.reliancecareuk.com/wp-content/plugins/super-forms/uploads/php/files/0c998ac3438fee5578b7e066bf534e7b/34453294399.pdf
- http://businessplan-capalpha.fr/mbp/upload/images/images/upload/ckfinder/kakofupanugawobi.pdf
- http://www.majoriscambio.com.br/wp-content/plugins/formcraft/file-upload/server/content/files/16070f9673f0de---48455490197.pdf
- https://rhdplumbing.com/wp-content/plugins/super-forms/uploads/php/files/941c694da0840dbdbeda71cdead27d0f/fufivegifovufosefawatada.pdf
- http://lbs.ac.at/wp-content/plugins/super-forms/uploads/php/files/t5hiut8udnifrpqcp138gdbseg/jikurupovurewenokodit.pdf
- http://www.ascendercorp.com/
- http://www.ascendercorp.com/typedesigners.html
- 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://scripts.sil.org/OFL
Extracted artifacts 3
Files carved from inside the sample during analysis.
| Filename | Kind | Source | Size |
|---|---|---|---|
font_00_sfnt_off0000f4b0.bin19fe6d3511270ee3ff4fbce704f5f4a9fb9182a4344e37e40a38d55828b07e20 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xF4B0 | 3312 bytes |
font_01_sfnt_off00010091.binfbb922767945bb8c8484a2afd4a43c8f5fd1c5189d118662ab4a89529e56ca6d |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x10091 | 5592 bytes |
font_02_sfnt_off00011386.bin611bd8c4c0bee6b45ee77ad43e2762c8410bf173c6453bbcfed717fcc454f880 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x11386 | 11448 bytes |
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