MALICIOUS
212
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1204.002 Malicious Link
The PDF contains embedded JavaScript and multiple links, some pointing to compromised WordPress sites, suggesting an attempt to deliver a payload. Heuristics indicate an advance-fee scam lure, likely aiming to trick the user into clicking a link or downloading a file, which aligns with spearphishing tactics. The ML classifier and ClamAV detection strongly indicate malicious intent.
Machine Learning
- Nyx PDF Classifier malicious score 0.9992
Heuristics 9
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ClamAV: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0 critical CLAMAV_DETECTIONClamAV detected this file as malware: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0
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Advance-fee lottery/parcel scam lure high SE_ADVANCE_FEE_SCAM_LUREDocument contains lottery/beneficiary or prize language together with large-value draft/funds wording and parcel/courier delivery requirements. This is a classic advance-fee fraud document shape.
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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 http://olympiad-bigben.ru/ckfinder/userfiles/files/73767464864.pdf
- http://www.accl-calibration.com/login/ckfinder/userfiles/files/wavokuxatiduvixu.pdf
- https://mcq-exambd.bdbabymart.com/app/webroot/ckfinder/userfiles/files/2320603352.pdf
- http://albertf.madteam.net/ckfinder/userfiles/files/puvupuxabevakarat.pdf
- https://hanoihome.net/img_duhoc/files/28635590887.pdf
- https://i-chat.tw/js/ckfinder/userfiles/files/detamawivojaxegavun.pdf
- https://skiclubraonbaccarat.fr/pdf/34530445845.pdf
- http://victorylimo1.com/wp-content/plugins/formcraft/file-upload/server/content/files/161484a9dd4b7c---kekat.pdf
- http://thewhitmerlawfirm.com/customer/3/d/9/3d947ad6ce2568d98b832ccf5548371bFile/juvogufulusad.pdf
- https://pasarantogel2.com/contents/files/18115150658.pdf
- https://duext.com/wp-content/plugins/super-forms/uploads/php/files/e030eaa05a7c19614b2ca98181b02fa0/kogapojapilazob.pdf
- http://atlantichomeportugal.com/wp-content/plugins/formcraft/file-upload/server/content/files/16144608dbac7e---36627234025.pdf
- https://resttour.com/images/userfiles/files/xagukip.pdf
- http://arabic.cz/ckfinder/userfiles/files/rafutidaw.pdf
- http://graviroz.hu/ckfinder/userfiles/files/mijekatufolepide.pdf
- https://happycustomerservice.com/wp-content/plugins/super-forms/uploads/php/files/3260a088ad5cacaff977873e6339d864/26330281460.pdf
- https://valserve.in/web/k/main_admin/ckfinder/userfiles/files/88931914979.pdf
- http://chanakol.com/ckfinder/userfiles/files/92371082815.pdf
- https://www.kiteschule-kiel.de/wp-content/plugins/formcraft/file-upload/server/content/files/1613d326286834---niruzepamikima.pdf
- http://firegallery.ru/img/upload/jopiwojetojununapag.pdf
- https://feedproxy.google.com/~r/Uplcv/~3/3CAf4wW3hvY/uplcv?utm_term=ninja+virtual+c9+apk+download
- 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_off0000dc25.bin20231206683435e50f1282c7270b27a5b06048a2201cf939300f7154faaa4bd4 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xDC25 | 20044 bytes |
font_01_sfnt_off000110ab.bin52fced04f966d8cca7765ee28791efad46090537ef6dd80fe2fea63c09d1b4e8 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x110AB | 10824 bytes |
font_02_sfnt_off000129cf.bin9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x129CF | 16792 bytes |
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