MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1204.002 Malicious Link
The PDF file was flagged by ClamAV as a phishing trojan and by an ML classifier as malicious. It contains numerous links pointing to compromised WordPress sites, suggesting a link farm designed to redirect users to malicious content. The presence of multiple distinct hosts and the use of 'utm_term' parameters indicate an attempt to obscure the final destination and potentially track user engagement with phishing lures.
Machine Learning
- Nyx PDF Classifier malicious score 0.9790
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://julieesteban.com/wp-content/plugins/formcraft/file-upload/server/content/files/160a4c4ac90dd7---sebemul.pdf In PDF document text
- http://chmelo.hu/sites/default/files/file/28198694238.pdfIn PDF document text
- http://photou.cc//ckfinder/userfiles/files/5051122790.pdfIn PDF document text
- https://1sis.com/wp-content/plugins/formcraft/file-upload/server/content/files/160ac2879a26e9---8988948295.pdfIn PDF document text
- http://ylphs.com/ckfinder/userfiles/files/jozowoxesawomadili.pdfIn PDF document text
- https://guapa2.com/admin/fck/file/49446157359.pdfIn PDF document text
- https://rjiminfra.com/wp-content/plugins/super-forms/uploads/php/files/92360c89035496a33be4576b3199295d/68864531537.pdfIn PDF document text
- https://immo-cjeanpaul.lu/userfiles/files/majofun.pdfIn PDF document text
- https://olivierdaulte.com/ckfinder/userfiles/files/32815554373.pdfIn PDF document text
- http://eiak.org/upload/editor/files/futanunowevafez.pdfIn PDF document text
- https://nhaban24h.com.vn/wp-content/plugins/super-forms/uploads/php/files/u26bqlps3pj2jhorlaqe52km4i/xonepubojamo.pdfIn PDF document text
- https://www.higher-energy-trampolineclub.com/wp-content/plugins/formcraft/file-upload/server/content/files/160ae50522a27b---91404581482.pdfIn PDF document text
- https://jennysbooks.com/wp-content/plugins/super-forms/uploads/php/files/d707f4e3ee522be96083848299332014/xavibifogu.pdfIn PDF document text
- https://thegioidongphuc.net/ckfinder/userfiles/files/wiroxamenevapapebakalo.pdfIn PDF document text
- http://hellnocancershow.com/wp-content/plugins/formcraft/file-upload/server/content/files/16081b0764c509---88947998620.pdfIn PDF document text
- http://clinicaveterinariamontecchia.com/userfiles/files/javazuzoxivugurafekavef.pdfIn PDF document text
- http://frederickfollows.co.uk/wp-content/plugins/formcraft/file-upload/server/content/files/160b60fb0038b7---tanosisaliso.pdfIn PDF document text
- http://www.goldenlantern.co.za/wp-content/plugins/formcraft/file-upload/server/content/files/160a5a03042785---livonoren.pdfIn PDF document text
- https://lightsourceindiana.com/wp-content/plugins/super-forms/uploads/php/files/01913b394e2b48b147ee564aff8f0865/54123081647.pdfIn PDF document text
- http://curry-box-deluxe.de/userfiles/file/79215130648.pdfIn PDF document text
- http://lixupeng.com/uploads/files/71112897375.pdfIn PDF document text
- http://emailreceptionist.net/userfiles/file/2592338212.pdfIn PDF document text
- https://purpleleafestatebuyers.com/wp-content/plugins/formcraft/file-upload/server/content/files/160ad827953042---riresajowivun.pdfIn PDF document text
- http://iburgisidimarsala.eu/userfiles/files/xeseka.pdfIn PDF document text
- http://baobianhkhang.com/upload/files/5594428232.pdfIn PDF document text
- https://evg-prague.fr/wp-content/plugins/formcraft/file-upload/server/content/files/160c8bae47147b---depulunafipemaki.pdfIn PDF document text
- https://feedproxy.google.com/~r/Uplcv/~3/3vuEKuznOb8/uplcv?utm_term=emily+anorexia+interventionPDF 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_off000130f0.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x130F0 | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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font_01_sfnt_off00014907.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x14907 | 10364 bytes |
SHA-256: 4b2faa24b97a49006318e343833c660c6264121a39ac9ef78dbf5c40dcd21762 |
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font_02_sfnt_off00016067.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x16067 | 17568 bytes |
SHA-256: 2db7d3f66467fee0aaaa669d3764c40ac5eaf1f2a99553232b11deff43bac56d |
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