MALICIOUS
164
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1203 Exploitation for Client Execution
This PDF document was flagged as malicious by ClamAV and an ML classifier. The file embeds a large number of external links characteristic of an SEO link farm, many hosted on compromised CMS upload directories and presents a deceptive download button. Specific URLs and indicators for this sample are listed in the indicators section.
Machine Learning
- Nyx PDF Classifier malicious score 0.9860
Heuristics 7
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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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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://personalloan2u.com/wp-content/plugins/super-forms/uploads/php/files/59349a97a8ca7a2b00468eb41e714d66/51540205131.pdf In PDF document text
- http://vasilii-orlov.fun/wp-content/plugins/super-forms/uploads/php/files/8db0b97621f46307ef616ba39b1ef853/9317984452.pdfIn PDF document text
- http://bmhs1963.com/clients/7/72/7286fd37811b7a5dece6e69924e4d5ab/File/tubisibomewifavapamivo.pdfIn PDF document text
- http://ambvetsanprospero.eu/userfiles/files/nasaga.pdfIn PDF document text
- https://123kozijnofferte.nl/wp-content/plugins/super-forms/uploads/php/files/0f0gb4oh1h3beaqe4p19rtnh23/wositifijewepulotovini.pdfIn PDF document text
- http://wojno-stal.pl/pliki/file/talimurumeli.pdfIn PDF document text
- http://kaplanpm.com/wp-content/plugins/formcraft/file-upload/server/content/files/16084d8520e4d5---40610395029.pdfIn PDF document text
- https://hps-gruppe.com/wp-content/plugins/super-forms/uploads/php/files/u20jd0egmc7pb2miqp8kp980g0/48409699352.pdfIn PDF document text
- https://www.kadinlarsitesi.org/wp-content/plugins/formcraft/file-upload/server/content/files/1607a5d2a54ab9---sokisafefilatarexegiwekag.pdfIn PDF document text
- http://staging.impactredevelopment.com/wp-content/plugins/formcraft/file-upload/server/content/files/16097c8e6d655a---54383095149.pdfIn PDF document text
- https://ecodiagnost.com/ckfinder/userfiles/files/62818307707.pdfIn PDF document text
- http://brodart01.com/wp-content/plugins/super-forms/uploads/php/files/vsegh4s5mbv4f4h264l558psj4/pisoxidarafate.pdfIn PDF document text
- https://www.hadlowsecurityshutters.com/wp-content/plugins/super-forms/uploads/php/files/13a77880cffb9709e0b66151014c23ea/fajafozagunigetota.pdfIn PDF document text
- http://ahxxzx.com/userfiles/202105/file/labilonogesuburodufenosef.pdfIn PDF document text
- https://vidolamerica.org/wp-content/plugins/super-forms/uploads/php/files/3705ab87ce21662b45b31bb6e15d2585/38593182311.pdfIn PDF document text
- https://www.kiteschule-kiel.de/wp-content/plugins/formcraft/file-upload/server/content/files/16093ce211d875---jadetevukitowi.pdfIn PDF document text
- http://socialbomjesus.org.br/wp-content/plugins/formcraft/file-upload/server/content/files/160ad01fc0775a---wajobatuxudukima.pdfIn PDF document text
- http://paroissedementon.fr/upload/files/zevofupujebunurifebuwera.pdfIn PDF document text
- https://xn--80afc2apd5n.xn--j1amh/upload/files/45782445910.pdfIn PDF document text
- https://kovtec.pl/eurostyl/photos/file/26510063177.pdfIn PDF document text
- http://friluftsgruppen.se/wp-content/plugins/formcraft/file-upload/server/content/files/160a8c29eaf7ea---80428090940.pdfIn PDF document text
- https://www.carrentchiengmai.com/files/2863174889.pdfIn PDF document text
- https://carpanea.it/wp-content/plugins/super-forms/uploads/php/files/9c21f5fe8611f7ba6be43bdc1d73b9c1/90258833638.pdfIn PDF document text
- http://www.netcorp.hu/data/editorfile/49776782981.pdfIn PDF document text
- http://www.lbf-cosmetics.com/website/wp-content/plugins/formcraft/file-upload/server/content/files/160a756eb04493---5067492862.pdfIn PDF document text
- http://sochi-vitrazhi.ru/ckfinder/userfiles/files/45768373169.pdfIn PDF document text
- https://feedproxy.google.com/~r/skout/mBVl/~3/ngfLrbzwjls/uplcv?utm_term=how+to+make+smaller+pdfPDF link annotation
- http://www.w3.org/1999/02/22-rdf-syntax-ns#In PDF document text
- http://purl.org/dc/elements/1.1/In PDF document text
- http://ns.adobe.com/pdf/1.3/In PDF document text
- http://ns.adobe.com/xap/1.0/In PDF document text
- http://ns.adobe.com/xap/1.0/mm/In PDF document text
- http://ns.adobe.com/xap/1.0/rights/In PDF document text
- http://dejavu.sourceforge.netIn PDF document text
- http://dejavu.sourceforge.net/wiki/index.php/LicenseIn PDF document text
Extracted artifacts 3
Files carved from inside the sample during analysis.
| Filename | Kind | Source | Size |
|---|---|---|---|
font_00_sfnt_off0000ec1c.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xEC1C | 17060 bytes |
SHA-256: 380e212f8db346a189bf77e6dca26480cc296be24a44f2ea8222b4797671ee3f |
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font_01_sfnt_off000118b3.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x118B3 | 10632 bytes |
SHA-256: 8faa3eb67da837fe142a762ffd2e85da7b3104eb175999c55ed88f2192f28d49 |
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font_02_sfnt_off0001311c.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x1311C | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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