MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1204.002 Malicious Link
The PDF file was flagged by a machine learning classifier and ClamAV as malicious, specifically as a phishing trojan. It contains numerous embedded URLs, many of which point to compromised CMS uploads or disposable hosting, indicating a link farm. The primary purpose appears to be redirecting users through a series of links, potentially to a malicious site or for SEO poisoning.
Machine Learning
- Nyx PDF Classifier malicious score 0.9955
Heuristics 6
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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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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://ecohost.ru/pics/images/file/84911874003.pdf In PDF document text
- http://leaguengn.com/userfiles/file///dejovesawoneg.pdfIn PDF document text
- http://dekoblickfang.de/userfiles/file/lujakuv.pdfIn PDF document text
- https://piuspvc.it/userfiles/file/kiwijemur.pdfIn PDF document text
- http://casaperferiesantamariagoretti.com/writable/public/userfiles/file/81804131272.pdfIn PDF document text
- http://burfel.ru/upfiles/files/82442380377.pdfIn PDF document text
- http://www.christinemartin.co.uk/wp-content/plugins/formcraft/file-upload/server/content/files/160bc1c6ed094b---59498260562.pdfIn PDF document text
- http://www.vivelamusica.es/wp-content/plugins/formcraft/file-upload/server/content/files/1608ece6eda6b2---betujazawegogokuw.pdfIn PDF document text
- https://worldkelo.com/wp-content/plugins/super-forms/uploads/php/files/17cd872e2385bcfd3444946659a225e6/puvozubufagenami.pdfIn PDF document text
- http://www.tif.cn/wp-content/plugins/super-forms/uploads/php/files/n5ooskkqdj5sisup34gjn726ap/jizuri.pdfIn PDF document text
- https://loskutova.site/wp-content/plugins/super-forms/uploads/php/files/40758b4046cb72aff1218bd436669f4a/tobajozetum.pdfIn PDF document text
- https://provisionsinternational.com/wp-content/plugins/formcraft/file-upload/server/content/files/1607045e407c2a---luvusokugekur.pdfIn PDF document text
- https://www.carlosfunes.es/wp-content/plugins/formcraft/file-upload/server/content/files/1606f3b33e6428---jamexumavalelotolon.pdfIn PDF document text
- http://legalinet.eu/userfiles/files/befegobasikufeneruluner.pdfIn PDF document text
- https://baxsporthorses.nl/userfiles/file/xugogizipixuxalisatisulo.pdfIn PDF document text
- https://armagedonspedycja.pl/files/file/fenonawabofipitejebe.pdfIn PDF document text
- https://raiporjai.com/piceditor/file/4658312580.pdfIn PDF document text
- http://isagenixmakessense.com/ckfinder/userfiles/files/36111579028.pdfIn PDF document text
- https://www.kbstephens.com/wp-content/plugins/super-forms/uploads/php/files/effb470f58fcc27e0095a6e9e06b7014/sozaxi.pdfIn PDF document text
- https://promocionesnma.com/wp-content/plugins/super-forms/uploads/php/files/98d7d9ee1cc6d49a5479ba6284db526c/detemixukudejakiwi.pdfIn PDF document text
- https://vate-tire.ru/wp-content/plugins/super-forms/uploads/php/files/d6e11cae3921c481394542c7b74504cf/vetemeneda.pdfIn PDF document text
- https://esteticarcare.com/wp-content/plugins/super-forms/uploads/php/files/b76209dcf3054663e219760987a24c80/dogonita.pdfIn PDF document text
- https://bayardplaza.co.uk/wp-content/plugins/super-forms/uploads/php/files/i4pot95aha1pg1d5hp27qhanfb/39045237142.pdfIn PDF document text
- http://studiotrusso.it/userfiles/files/21117057485.pdfIn PDF document text
- https://feedproxy.google.com/~r/skout/mBVl/~3/3vuEKuznOb8/uplcv?utm_term=ventilacion+mecanica+manual+para+enfermeria+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_off00020578.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x20578 | 18968 bytes |
SHA-256: e99c215c2c43d41d1f6809dfbefc41576f15ab07e8a139535edac6d13f059dfc |
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font_01_sfnt_off0002362d.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x2362D | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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font_02_sfnt_off00024e44.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x24E44 | 10680 bytes |
SHA-256: 1767f5fa5134b557b55c296279352f305a0c469a3d8af874d592aa22989c92e0 |
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