MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
This PDF file was flagged by multiple heuristics as malicious, including a high-confidence ML classifier and ClamAV detection as a phishing trojan. The file contains numerous embedded URLs that form a link farm, pointing to various compromised WordPress sites and disposable hosting. These links likely serve to obscure the ultimate destination, which is probably a phishing page or a malware download site.
Machine Learning
- Nyx PDF Classifier malicious score 0.9948
Heuristics 6
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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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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://tkpmission.org/wp-content/plugins/formcraft/file-upload/server/content/files/160821b7428b33---sisazelubazimaxev.pdf
- http://adainst.com/uploade/files/20210630042244.pdf
- https://wilsonbarrera.com/inicio/wp-content/plugins/formcraft/file-upload/server/content/files/1607234c2511f7---wizur.pdf
- https://deconkhoemanh.com/wp-content/plugins/super-forms/uploads/php/files/mevufq1m3hsl1r0ej48hb92si8/75085035698.pdf
- http://www.expertnutritionadvisor.com/wp-content/plugins/formcraft/file-upload/server/content/files/160ba1cfa0bb35---63077888518.pdf
- https://brianhigbielaw.com/UserFiles/file/deronad.pdf
- https://catequesisnavarra.org/guiarte_userfiles/files/47155583446.pdf
- https://sharidendesignasphalt.com/wp-content/plugins/super-forms/uploads/php/files/f8938041a79e730771b9517644819e83/86509273756.pdf
- http://4bx.pl/public/file/6985690968.pdf
- http://barudan.hk/UploadFile/file/20210613205721146.pdf
- https://teenvolunteerhouston.org/wp-content/plugins/super-forms/uploads/php/files/513fa24fa7524562afe6bf77e1947ed2/jilujigimaz.pdf
- https://klingende-zeder.de/wp-content/plugins/formcraft/file-upload/server/content/files/160acf2ae82986---loxomuxux.pdf
- https://www.properties-thassos.com/wp-content/plugins/super-forms/uploads/php/files/qrqujsepdvrgt64uvmffj5l8sm/jimosugopuvovogobatuti.pdf
- https://asigurareingermania.ro/wp-content/plugins/super-forms/uploads/php/files/8o8hbu4r07o6gtbe88lkalg2l1/67714805037.pdf
- http://sumnerclassof1976.com/clients/4/49/49b54eafcc86ae0c30eb104ab8b91c7c/File/relumif.pdf
- http://www.predoisiasociatii.ro/wp-content/plugins/formcraft/file-upload/server/content/files/16075fe9b1eb77---47262244105.pdf
- https://www.drserapkagan.com/wp-content/plugins/super-forms/uploads/php/files/ja49vvo2hks9lk8sgs2c3n7hjh/kolana.pdf
- http://sarlampa.ru/upload_picture/8957588283.pdf
- https://kuechentreff-schmid.de/wp-content/plugins/super-forms/uploads/php/files/th2b8osiraocbi4stj59slh1pd/12080691474.pdf
- http://dangkyidol.com/wp-content/plugins/super-forms/uploads/php/files/mcigdov9e1675pj9mie86qeqj2/rokirile.pdf
- http://www.sunarmisir.com.tr/wp-content/plugins/super-forms/uploads/php/files/o894kjr3em7d36ar1kdfra3496/suserologepozalato.pdf
- https://agrilaui.com/userfiles/file/pizonikozudo.pdf
- https://feedproxy.google.com/~r/Uplcv/~3/LPIa9PGmDLg/uplcv?utm_term=fire+gba+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 4
Files carved from inside the sample during analysis.
| Filename | Kind | Source | Size |
|---|---|---|---|
font_00_sfnt_off0000d4ce.bin478d64aad58a46c60a63c2bd6d05d9c39068b35528f549688063ac651822ff24 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xD4CE | 1760 bytes |
font_01_sfnt_off0000dd25.bin12e9826543a2f526b5bac0daa5c87d60e04f48e5b79bc0c72c87d175305f3d0c |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xDD25 | 17020 bytes |
font_02_sfnt_off00010977.bin9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x10977 | 16792 bytes |
font_03_sfnt_off0001218e.bined6fbc2b51b8429bf9cd3a5849411d2eb5245630f8ae34af1c76c35c4aa7af77 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x1218E | 10596 bytes |
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