MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
This PDF document was flagged as malicious by both ML classifiers and ClamAV, indicating a high likelihood of malicious intent. The document contains a large number of embedded URLs, many pointing to compromised WordPress sites or disposable hosting, suggesting a link farm designed to redirect users to malicious content. The presence of PDF_SEO_DISPOSABLE_LINK_FARM and PDF_COMPROMISED_CMS_UPLOAD_LINK_FARM heuristics further supports this attack pattern.
Machine Learning
- Nyx PDF Classifier malicious score 0.9981
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://allytemp.ru/uplcv?utm_term=headway+pre+intermediate+fourth+edition+tests+pdf PDF link annotation
- http://www.orarestauratorisaf.it/wp-content/plugins/formcraft/file-upload/server/content/files/16131f96365257---84271439732.pdfIn PDF document text
- http://jiangsutravel.kr/userfiles/files/20210903_163507.pdfIn PDF document text
- https://wodepcb.cn/uploadfiles/files/7044674114.pdfIn PDF document text
- http://www.greddy.com/admin/common/ckfinder/userfiles/File/lovabalixefuderebirok.pdfIn PDF document text
- https://independentmusicleague.com/wp-content/plugins/super-forms/uploads/php/files/8da099e01d7da33abbadb2b6b7b5cc00/3848486952.pdfIn PDF document text
- http://axiomestates.com/userfiles/file/32228431413.pdfIn PDF document text
- http://email-database.info/userfiles/file/puzuvebemawe.pdfIn PDF document text
- http://wamer.org/userfiles/file/5218408421.pdfIn PDF document text
- https://whiteplacard.com/UserFiles/file/fevezu.pdfIn PDF document text
- http://nrgmedia.hu/files/file/pikevodifaj.pdfIn PDF document text
- http://karmakonnect.org/DrumiBhatt/karmakonnect.org/Final/ckeditorimage/files/17529871592.pdfIn PDF document text
- https://growlocals.com/wp-content/plugins/super-forms/uploads/php/files/323fb8ffbb2570d71548db5051b33637/22795024241.pdfIn PDF document text
- https://alice-immo.com/userfiles/file/kuwosegixijusurata.pdfIn PDF document text
- https://astoriareiki.com/wp-content/plugins/super-forms/uploads/php/files/7a734cf67765a1ae1ffb50243747c941/3386847049.pdfIn PDF document text
- http://wienbildarchiv.com/upload_files/files/78834564417.pdfIn PDF document text
- http://nfraccon.org/userfiles/file/daluvunobotubo.pdfIn PDF document text
- http://formel1vermietung.de/userfiles/file/kuwupiwix.pdfIn PDF document text
- http://a-range.ru/wp-content/plugins/formcraft/file-upload/server/content/files/161391150145ff---14092755390.pdfIn PDF document text
- http://ventexevent.se/uploads/file/55907958794.pdfIn PDF document text
- https://duocvinhkim.com/userfiles/file/xixozavajod.pdfIn PDF document text
- http://mu-rrrc.com/userfiles/file/vupiwawumiredokefa.pdfIn PDF document text
- http://aqcorth.specialty-match.com/upload/files/71934761211.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_off0000dd25.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xDD25 | 18268 bytes |
SHA-256: e72f9f27797959ecff78486754651cd88da79a3a63d0ae9f93af7e526eff2d27 |
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font_01_sfnt_off00010cce.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x10CCE | 11008 bytes |
SHA-256: c9245c2ac628a4dffa2955cb9cb7d8e1e740f0f52ddf08d348b7b0f069a508ce |
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font_02_sfnt_off00012636.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x12636 | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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