MALICIOUS
164
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
This PDF file was flagged by a machine learning classifier and ClamAV as malicious, specifically as a phishing trojan. It contains numerous external links, many pointing to compromised WordPress sites and disposable hosting, suggesting a link farm designed to redirect users to malicious content. The presence of a 'download button' heuristic further supports a lure-based attack pattern.
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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Visual download / call-to-action button lure low SE_DOWNLOAD_BUTTONDocument contains a call-to-action phrase ('Click here to download', 'Download Now', etc.) — low-signal unless other findings point to a malicious workflow
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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://crewmak.ru/uplcv?utm_term=redmi+note+8+pro+android+11+release+date
- https://roadtoring.com/wp-content/plugins/super-forms/uploads/php/files/419a68e3eab69d12e524dc351c674ea1/25834151460.pdf
- http://uforoi.com/app/webroot/uploads/files/balazedaxi.pdf
- http://ntouioc.ntou.edu.tw/ckfinder/userfiles/files/5906042244.pdf
- https://comfort8889.com/upload/files/28079271493.pdf
- http://kooijobs.in/ckfinder/userfiles/files/99319133084.pdf
- http://sgo-bage.com/public/files/files/35051531632.pdf
- https://socialacademy.gr/wp-content/plugins/super-forms/uploads/php/files/9ce33d54fb9c1c52162c39cc343a9355/rexapimolujabiza.pdf
- https://paradigma.bg/uf/file/dimofupugijik.pdf
- http://autoscuolapezzano.it/userfiles/files/kovutivapoxos.pdf
- https://marbeyoyun.com/calisma2/files/uploads/16807999178.pdf
- https://www.cdscabling.co.uk/wp-content/plugins/formcraft/file-upload/server/content/files/16135983911294---48935629685.pdf
- http://dolphinkorea.com/files/files/xejewe.pdf
- http://uat.ideadunes.com/projects/ideadunes-portfolio-site/wp-content/plugins/formcraft/file-upload/server/content/files/161336ebbd4227---filifutafefizowas.pdf
- http://bebelino.ru/userfiles/file/55131087590.pdf
- https://www.golaw.net/wp-content/plugins/formcraft/file-upload/server/content/files/161312627bba0e---fisenavasiguzipusubu.pdf
- https://promobryansk.ru/userfiles/files/42919043350.pdf
- https://premiersuli.hu/files/files/mexazezukufed.pdf
- https://morganmethod.com/ci/userfiles/files/mimaxerejonapavanalusufe.pdf
- http://richmediahouse.com/admin/uploads/file/guvaroraxonasok.pdf
- https://lanjutpt1.com/contents/files/93903336442.pdf
- http://nm-union.ru/ckfinder/userfiles/files/wemonepefudatimasot.pdf
- https://ddshower.com/ckfinder/userfiles/files/miwinuno.pdf
- https://www.getfitcrew.com/wp-content/plugins/formcraft/file-upload/server/content/files/161311da7d7f57---xunegemusazunex.pdf
- http://magendans.com/imagefiles/file/kamitojufuzamidomi.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_off0000e167.bin3c632c20fcf3f45961b49f2889c1e35d415b06759440032892f26651f6e708c8 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xE167 | 17548 bytes |
font_01_sfnt_off00010eb1.bin9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x10EB1 | 16792 bytes |
font_02_sfnt_off000126c8.bin41413287b98e3ff447bbbb0303d4d96fd64a65c8f1a4817a72e0fe6e0039729e |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x126C8 | 10856 bytes |
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