MALICIOUS
172
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1203 Exploitation for Client Execution
This PDF file was flagged by ML classifiers and ClamAV as malicious, indicating a high likelihood of malicious intent. The presence of embedded JavaScript and a link farm pointing to compromised WordPress upload storage suggests it is designed to redirect users to further malicious content. The document likely serves as a lure, potentially for phishing or to download a second-stage payload.
Machine Learning
- Nyx PDF Classifier malicious score 0.9974
Heuristics 8
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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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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://camphacement.vn/upload/files/47839907569.pdf
- http://ashokarefrigeration.com/userfiles/file/lumatezaz.pdf
- https://magyar-logyogyasz.hu/fileok/file/noxulovunofirukupesi.pdf
- https://www.oasipizza.it/wp-content/plugins/formcraft/file-upload/server/content/files/16139ddc6e0184---vibiranujoliwefazuxuw.pdf
- http://alda.pl/ckfinder/userfiles/files/zasodunemowedotezewe.pdf
- https://servingltda.com/userfiles/file/puvavaf.pdf
- http://nepalbestcargo.com/userfiles/file/21351779685.pdf
- http://aodaiminhhanh.com/app/webroot/uploads/files/razivijilepugomorokaw.pdf
- http://www.phsdcenter.com/temp/js/ckfinder/userfiles/files/jepumenoliwubitubi.pdf
- https://needlugs.com/userfiles/files/40981690192.pdf
- http://guchen.ru/d/files/57689555417.pdf
- http://divorce-difficile.fr/userfiles/file/62554187394.pdf
- https://sbsoftware.ro/admin/userfiles/file/tojisosijafikowove.pdf
- http://kisito.com/userfiles/file/rilaka.pdf
- http://newshop.jp/archive/file/78301254133.pdf
- https://htfcompact.com/wp-content/plugins/super-forms/uploads/php/files/e942fd027f7002f36cc3e7f21155eab1/jagix.pdf
- http://acetuitioncentre.com.au/wp-content/plugins/formcraft/file-upload/server/content/files/1612f6b3fbacdd---83618668000.pdf
- http://www.viksexteriors.com/wp-content/plugins/formcraft/file-upload/server/content/files/16130577386c60---mudavetuwo.pdf
- http://sobinco.cz/ckfinder/userfiles/files/wijakemobugiburotafa.pdf
- http://goodfortune.hk/UpLoadFile/file///47924477735.pdf
- http://paintingservicesonline.ca/wp-content/plugins/formcraft/file-upload/server/content/files/16135d55ebaf9d---nimenowaravig.pdf
- http://hzeiger.com/userfiles/file/mezilulisise.pdf
- http://kopdesign.nl/userfiles/file/37654803845.pdf
- http://shijijiaming.cn/filespath/files/20210901065606.pdf
- http://khiensa.com/UserFiles/File/makisovevolatulegax.pdf
- https://feedproxy.google.com/~r/skout/mBVl/~3/1xuhb7AK25c/uplcv?utm_term=aero+instagram+apk
- 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_off0000dc63.bin9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xDC63 | 16792 bytes |
font_01_sfnt_off0000f475.binb892b8c341effaec38e61b7fa0484d864b80995e88a1442f520edc159454a3ab |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xF475 | 18652 bytes |
font_02_sfnt_off00012557.bin0989e1cc624b18d0d7d6b62f3885e3d8ac356a0f194f507afe4eb4e03d102862 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x12557 | 10620 bytes |
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