MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
The PDF contains numerous links to external websites, many of which appear to be part of a link farm designed to obscure the true malicious destination. Heuristics indicate the PDF is likely a phishing or malware distribution lure, and ClamAV detection confirms its malicious nature. The ML classifier also strongly flagged this PDF as malicious.
Machine Learning
- Nyx PDF Classifier malicious score 0.9978
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 https://oniceh.ru/uplcv?utm_term=how+can+i+free+up+ram+on+my+phone PDF link annotation
- http://www.toptehnik.si/images/vurogixobazawinudekidojel.pdfIn PDF document text
- https://newtech-utm.pl/userfiles/file/vozalenokonaluvi.pdfIn PDF document text
- http://farmaciafasolis.eu/userfiles/files/tipeladivexupatalitopu.pdfIn PDF document text
- http://www.ashtralmedia.com/wp-content/plugins/formcraft/file-upload/server/content/files/16141dfac71ffa---surotedutawaxalifes.pdfIn PDF document text
- http://rjt1.org/upload/files/wefujoko.pdfIn PDF document text
- http://mai-colle.jp/userfiles/file/kinilekomikobawu.pdfIn PDF document text
- http://paintingservicesonline.ca/wp-content/plugins/formcraft/file-upload/server/content/files/161359799dfca4---40590476886.pdfIn PDF document text
- https://akgoz.zemta.com/uploads/files/xusiwi.pdfIn PDF document text
- https://peoplesmodelinternational.com/ckfinder/userfiles/files/2464585649.pdfIn PDF document text
- http://newshop.jp/archive/file/70148621482.pdfIn PDF document text
- http://nsmpublicschool.org/slbdavbatala/userfiles/file/nedufipume.pdfIn PDF document text
- https://breedlife.com/upload/files/94828365735.pdfIn PDF document text
- http://wixoon.hu/upload/file/3570870855.pdfIn PDF document text
- http://chnli.tw/CKEdit/upload/files/modiletubitudutaxipozap.pdfIn PDF document text
- https://alirezamirmohammadi.com/images/upload/files/makelosumajigezukozupi.pdfIn PDF document text
- http://stroynerud-sm.ru/wp-content/plugins/formcraft/file-upload/server/content/files/161392738839b5---83398364049.pdfIn PDF document text
- http://daming-school.com/userfiles/file/35225696268.pdfIn PDF document text
- https://www.educationsexuelle-ecole.ch/ck/ckfinder/userfiles/files/fikonadubapoz.pdfIn PDF document text
- http://petraifevronii.ru/ckfinder/userfiles/files/28405087790.pdfIn PDF document text
- https://www.physioaktivkramer.de/wp-content/plugins/formcraft/file-upload/server/content/files/1614226efc45e7---57416975742.pdfIn PDF document text
- http://www.octopus-quatuorvocal.com/ckfinder/userfiles/files/1569329910.pdfIn PDF document text
- https://masterpieces-mallorca.com/wp-content/plugins/super-forms/uploads/php/files/79cf88054232ff96e7fd79524aa0f474/xasalulemubeferomukipili.pdfIn PDF document text
- http://rosesrealtyhomes.com/userfiles/files/xemisevufuwinitatukuzure.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_off0000b1a9.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xB1A9 | 15380 bytes |
SHA-256: 2ab54d684a21d3e7cfc9a2c5aa8fa375debcb2b19fad265d7c364c2ff58105a4 |
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font_01_sfnt_off0000d8b0.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xD8B0 | 10724 bytes |
SHA-256: f4b9ca046d2e9ba5334d8213bd7a7d94aafdc12d21fcd68049eb6c78b6b24530 |
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font_02_sfnt_off0000f121.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xF121 | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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