MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1203 Exploitation for Client Execution
This PDF file was flagged by ClamAV as a phishing trojan and by an ML classifier as malicious. It contains numerous embedded URLs, many pointing to compromised WordPress sites, suggesting it's part of a link farm designed to redirect users to malicious content or phishing pages. The document body is heavily obfuscated and unreadable, but the presence of multiple external URI heuristics and a link farm detection strongly indicates a malicious intent to lure users to external sites.
Machine Learning
- Nyx PDF Classifier malicious score 0.9979
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://infrive.ru/uplcv?utm_term=manual+de+carre%C3%B1o+gratis PDF link annotation
- https://www.bevillelecomte.com/ckfinder/userfiles/files/xiporonufuxevuboxepabugam.pdfIn PDF document text
- https://relleno-acidohialuronico.com/wp-content/plugins/super-forms/uploads/php/files/fb95fbf150702217a732ef20ab78b184/fokutiwiganawujilivare.pdfIn PDF document text
- http://premiumresourcing.com/wp-content/plugins/formcraft/file-upload/server/content/files/1607f4ec19cc64---nurilogimola.pdfIn PDF document text
- http://xn--9n2bn9mz3aba29g44r4o0a.kr/fckeditor/userfiles/image/fonelulofetakavafomudekup.pdfIn PDF document text
- https://inclinedigital.com/wp-content/plugins/formcraft/file-upload/server/content/files/160f6522205de2---keratawuwoser.pdfIn PDF document text
- http://onlinecommerce.bg/uploads/pages/files/84439576948.pdfIn PDF document text
- http://www.hcibatiment.fr/wp-content/plugins/formcraft/file-upload/server/content/files/1610c07eb54016---80263893648.pdfIn PDF document text
- https://noventa.cz/media/files/file/38852446963.pdfIn PDF document text
- https://ises.ca/phpsites/vertical_living/uploads/file/nevuboxitakuf.pdfIn PDF document text
- http://maasmartcity.com/userfiles/file/32458238111.pdfIn PDF document text
- https://kitapkaplama.com/upload/ckfinder/files/31937978919.pdfIn PDF document text
- http://bkht.vn/userfiles/file/nobifu.pdfIn PDF document text
- https://austarpharma.com/upload/files/47826538846.pdfIn PDF document text
- http://suseefinance.com/userfiles/file/36921343146.pdfIn PDF document text
- https://tfnd.org/wp-content/plugins/super-forms/uploads/php/files/d0472e5ea7234756e44fabca0dbf6909/84565811090.pdfIn PDF document text
- https://eclipsetheaters.com/wp-content/plugins/formcraft/file-upload/server/content/files/1609935afc6b7b---wafoxaxedaxotoxafiniveva.pdfIn PDF document text
- https://mymango.ru/wp-content/plugins/super-forms/uploads/php/files/c61530ea28666feb99f172898f63a87b/menoxomojukamaniporoxazi.pdfIn PDF document text
- http://ardechetendancebrut.fr/userfiles/ardechetendancebrut.fr/file/43879271334.pdfIn PDF document text
- http://martom24.pl/martom/userfiles/file/lorezow.pdfIn PDF document text
- https://reifenscho.de/wp-content/plugins/formcraft/file-upload/server/content/files/160f88704df630---52175938857.pdfIn PDF document text
- http://jarosi.hu/files/file/tikoni.pdfIn PDF document text
- http://sutinlawkrabi.com/ckfinder/userfiles/files/18730970561.pdfIn PDF document text
- 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_off0000fc3f.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xFC3F | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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font_01_sfnt_off00011451.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x11451 | 18744 bytes |
SHA-256: ba071ca819a90a583acecc7bd3885f4fbd40631e135535be683f214117f9b82c |
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font_02_sfnt_off000143f3.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x143F3 | 10844 bytes |
SHA-256: 0227957f21bb02aacbe06fc74056e05797eaf515a24629eb80adf6dd522c7fab |
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