MALICIOUS
172
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
The PDF contains numerous links to external resources, many hosted on compromised WordPress sites, suggesting a link farm designed to redirect users to malicious content. The ML classifier and ClamAV detection strongly indicate malicious intent, likely to deliver a phishing payload or exploit. Embedded JavaScript streams are present, which could be used to facilitate the download or execution of further malicious content.
Machine Learning
- Nyx PDF Classifier malicious score 0.9960
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://techson-cctv.com/upload/file/673222755.pdf
- https://wcdt.co.th/wp-content/plugins/super-forms/uploads/php/files/0rcktqtja8t1fh0iorhqi0ad5p/zupofumokumav.pdf
- http://www.drop-lok.com/wp-content/plugins/formcraft/file-upload/server/content/files/160b48c69c0cf5---nupini.pdf
- https://www.sblending.com.au/wp-content/plugins/formcraft/file-upload/server/content/files/160798970f2081---vodefudefufex.pdf
- http://ed-web.cz/userfilesfile/detiwawojamupadawurarag.pdf
- https://primeodontorj.com/wp-content/plugins/super-forms/uploads/php/files/d425e85f2c8886f88b41cb96c5f5df38/16438410928.pdf
- http://grani-tonkogo-mira.ru/wp-content/plugins/super-forms/uploads/php/files/266eb4751a2403232136bf599129c88f/dewumetorikexaki.pdf
- https://elitestrategyglobal.com/wp-content/plugins/super-forms/uploads/php/files/3107d6ca4cf8ceafb41089e68aa6b3b1/buvoxuguwede.pdf
- http://www.corazondelsol.es/ckfinder/userfiles/files/xatibipudusaboroxiniwav.pdf
- https://www.espymetcalf.com/wp-content/plugins/formcraft/file-upload/server/content/files/1609f8870bb494---dobol.pdf
- https://hps-gruppe.com/wp-content/plugins/super-forms/uploads/php/files/ch88eb4iejo358ngghuvcdbj36/jipuxexaruferigokexe.pdf
- http://visualpaint.com/wp-content/plugins/formcraft/file-upload/server/content/files/160acc802b6c35---7175031972.pdf
- http://afghansolar.com/userfiles/file/fimajenepusitoxede.pdf
- https://guineaservicesproviders.com/gsp/files/zugizuzajariwum.pdf
- https://sfasg.jp/js/ckfinder/userfiles/files/kenunepofukizasisunaw.pdf
- http://windcampus.com/wp-content/plugins/formcraft/file-upload/server/content/files/160a4185d986de---58342895089.pdf
- http://signexpowholesale.com/project-new/christianbook/upload_images/file/19508442605.pdf
- https://myphi.biz/nbloom/fckuploads/file/tolupepujerulaki.pdf
- https://www.gasserbush.com/wp-content/plugins/super-forms/uploads/php/files/6cbfbeda0be37ea58f2ea89345d780b9/mimexidenutiwotemazamit.pdf
- http://piazzademarini3ge.com/userfiles/files/mamin.pdf
- https://sfeerweter.nl/userfiles/files/pawogivalamotobukawabad.pdf
- https://lawina-radom.pl/files/file/likip.pdf
- http://wsm.hk/images/uploadfiles/file/wuzasinudazodumibasuroxul.pdf
- https://feedproxy.google.com/~r/Uplcv/~3/Om9ozkHLxGw/uplcv?utm_term=mathematics+of+investment+and+credit+7th+edition+solutions
- 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_off0000d745.bin9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xD745 | 16792 bytes |
font_01_sfnt_off0000ef57.bin1e8a21bbdbaa517715f7352aceb179b09de6ae87fa653dcbbb50e840144ca55c |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xEF57 | 18080 bytes |
font_02_sfnt_off00011f1a.bin5cea3c20575d283074149e36bad52659bfc7a329d390460f61eb771a7f7b3314 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x11F1A | 10952 bytes |
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