MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1059.007 JavaScript
This PDF file was flagged by multiple heuristics as malicious, including a critical ClamAV detection and an ML classifier. It contains numerous external URLs, many of which point to compromised CMS uploads or are part of a link farm, suggesting a phishing or malware distribution attempt. The presence of embedded JavaScript, though not explicitly detailed, is a common technique for exploiting PDF vulnerabilities or redirecting users to malicious sites.
Machine Learning
- Nyx PDF Classifier malicious score 0.9840
Heuristics 6
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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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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=rollercoaster+tycoon+classic+mod+apk+unlimited+money
- https://rcvizovice.cz/ckfinder/userfiles/files/69850440278.pdf
- http://naphotelbangkok.com/userfiles/files/48056347826.pdf
- http://sanmorales.es/userfiles/files/sufodiminiwusobuvug.pdf
- http://goldsunjsc.com/upload/files/sekatugeruvajap.pdf
- http://niengrangchuyensau.com/upload/contentFile/file/40692449207.pdf
- https://www.phoenixdentalacademy.co.uk/wp-content/plugins/super-forms/uploads/php/files/7b655e8dcbb5eb253a0b79265f739305/1681621289.pdf
- https://happen.webasl.com/userfiles/file/55004060990.pdf
- http://clarklawtexas.com/customer/3/d/9/3d947ad6ce2568d98b832ccf5548371bFile/27361583548.pdf
- https://mudraconsultancy.com/uploads/files/xinovixogukidadanogu.pdf
- http://puginternational.com/ckfinder/userfiles/files/40584093007.pdf
- https://holocaustresearch.pl/nowy/photo/file/36358031887.pdf
- http://purofirstli.com/userfiles/files/setidofowupagokas.pdf
- http://tuttotop.com/userfiles/files/xivamul.pdf
- http://bn-biz.com/userData/board/file/sevozejisisoxasorano.pdf
- https://unitytradecapital.com/ckfinder/userfiles/files/52002289573.pdf
- http://duhochoangthanh.com/upload/files/38455048305.pdf
- http://www.impactit.in/ckfinder/userfiles/files/79447388858.pdf
- https://www.hermanosvalerorecio.com/ckfinder/userfiles/files/69233558589.pdf
- http://pescepiana.eu/userfiles/files/puwetidadejawovenunadexaf.pdf
- http://pilanatofishing.com/home/sandbox/domains/shelter.sandbox.tritek.hk/public_html/ckfinder/userfiles/files/sunutoxabogoladife.pdf
- http://hichipper.com/hichipper/uploadfile/file/2021091704441973499.pdf
- https://pbchistoryonline.org/uploads/file/94439661037.pdf
- http://www.nuricomuvakfi.org/wp-content/plugins/super-forms/uploads/php/files/6kssc111evh3bdc667niuhu6o3/xemebanoduxu.pdf
- https://talenthunt.biz/userfiles/file/mupijakepuva.pdf
- http://houstontca.org/Content/uploads/files/79657542766.pdf
- http://crystalnymph.by/wp-content/plugins/super-forms/uploads/php/files/c331706877b89ab76ded08e24e100a72/zawekakababimisulugimafun.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_off0000bc90.binfaa2ed09de471f552517794c8020192e45f11c30b83e846e54d43a3cce9099b3 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xBC90 | 16172 bytes |
font_01_sfnt_off0000e622.bince3ae1193b9f1c5f18ae8ec706020900f5f12f57d0c0720a8ffb7f3d98ea053d |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xE622 | 11024 bytes |
font_02_sfnt_off0000ffce.bin9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xFFCE | 16792 bytes |
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