MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1203 Exploitation for Client Execution
The PDF contains numerous embedded URLs, many of which point to compromised websites or disposable hosting, indicating a link farm designed to lead users to malicious content. The ClamAV detection and ML classifier strongly suggest a phishing or trojan payload delivery. The heuristic PDF_COMPROMISED_CMS_UPLOAD_LINK_FARM specifically highlights the use of compromised WordPress uploads for hosting content.
Machine Learning
- Nyx PDF Classifier malicious score 0.9951
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 http://gymostrov.org/gymostrov/userfiles/file/fokare.pdf In PDF document text
- http://allier-genealogie.org/File:/povokejukulewobuzi.pdfIn PDF document text
- https://dursunguney.com/userfiles/files/80322751339.pdfIn PDF document text
- https://whitelightdesign.com/wp-content/plugins/super-forms/uploads/php/files/122626cfd70570f5ede9d1fe48dbd3bc/71699396813.pdfIn PDF document text
- http://fundacionecla.org/resources/original/file/tusuvegekazusuzokedizeje.pdfIn PDF document text
- http://smn68.com/clients/75339/File/vasadexi.pdfIn PDF document text
- http://www.movingintofreedom.com/wp-content/plugins/formcraft/file-upload/server/content/files/1606caf3c3ba70---72169551446.pdfIn PDF document text
- http://yangs-ns.com/ckfinder/userfiles/files/20210528145522.pdfIn PDF document text
- https://nowackleverkusen.de/wp-content/plugins/formcraft/file-upload/server/content/files/160c78922466d0---texojowut.pdfIn PDF document text
- http://ilkyoukais.com/Images/Media/files/156657189.pdfIn PDF document text
- http://cargo3030.ru/wp-content/plugins/formcraft/file-upload/server/content/files/1608348616a88b---31522166884.pdfIn PDF document text
- http://tofuyatogo.com/uploads/files/85538228909.pdfIn PDF document text
- https://club-sports.net/uploads/products/files/45077542270.pdfIn PDF document text
- http://www.infranetltd.com/wp-content/plugins/formcraft/file-upload/server/content/files/16123af3243cf5---5358648508.pdfIn PDF document text
- https://drivingschoolofnorthtexas.com/wp-content/plugins/formcraft/file-upload/server/content/files/160b2afaacd39c---vogagufezot.pdfIn PDF document text
- https://halobysciton.com/wp-content/plugins/formcraft/file-upload/server/content/files/1607055d99f9d7---21623982393.pdfIn PDF document text
- http://studioaba.net/userfiles/files/6694680945.pdfIn PDF document text
- http://www.majbrno.cz/uploads/files/98332751714.pdfIn PDF document text
- https://solarconsulting.org/wp-content/plugins/super-forms/uploads/php/files/815e43c34a25aa20a50b7e30cc315438/80092014103.pdfIn PDF document text
- https://aordonez.com/images/contenidos/files/xuzugejewuvivoki.pdfIn PDF document text
- http://wksystems.net/HotelEstimator/userfiles/file/rulimesasepej.pdfIn PDF document text
- http://aotwresort.info/ckfinder/userfiles/files/bugofevufibebunasexu.pdfIn PDF document text
- https://glass-haus.ru/wp-content/plugins/super-forms/uploads/php/files/14157b37a6db5f05eb05f222d48d2992/5281054670.pdfIn PDF document text
- http://xn----8sbxab3abskk3a2j.xn--p1ai/media/file/dukawamivuko.pdfIn PDF document text
- http://www.verneteco.com/ckfinder/userfiles/files/89710214466.pdfIn PDF document text
- https://feedproxy.google.com/~r/Uplcv/~3/PmAiG5ZyT-k/uplcv?utm_term=broadcom+bcm2711+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_off0000db98.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xDB98 | 20228 bytes |
SHA-256: e7548a464a5eae7b3cb84928e50f553c10955496bbdacae53019e422f328f176 |
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font_01_sfnt_off0001115d.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x1115D | 10556 bytes |
SHA-256: e7c12f199d8a169919cd5ecc86ba042394d4421f92b3e7a937765072df4dd6ea |
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font_02_sfnt_off0001295e.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x1295E | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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