MALICIOUS
134
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
The PDF was flagged by a machine learning classifier and ClamAV as malicious, specifically as a phishing trojan. It contains numerous external URIs, including one that appears to be a redirector for downloading content, and is described as a link farm on disposable hosting. The presence of embedded URLs and the heuristic 'SE_DOWNLOAD_BUTTON' suggest a lure to trick users into clicking links that likely lead to further malicious activity.
Machine Learning
- Nyx PDF Classifier malicious score 0.9968
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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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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Visual download / call-to-action button lure low SE_DOWNLOAD_BUTTONDocument contains a call-to-action phrase ('Click here to download', 'Download Now', etc.) — low-signal unless other findings point to a malicious workflow
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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=download+mortal+kombat+trilogy+apk PDF link annotation
- http://geometracosentino.com/userfiles/files/pogujasenedovikur.pdfIn PDF document text
- http://geodez.com/pliki/file/52882504542.pdfIn PDF document text
- https://www.pharmaright.ca/wp-content/plugins/super-forms/uploads/php/files/nujfie29lh3od9gbe9kb59rfaj/nosebuxewomi.pdfIn PDF document text
- https://bustotoronto.com/userfiles/file/96487844080.pdfIn PDF document text
- https://senegal4d.com/contents/files/firirikuxewevilewopi.pdfIn PDF document text
- https://doina.md/fckeditorfiles/file/zivupuxexivisalejelebo.pdfIn PDF document text
- https://mbamantra.com/ci/userfiles/files/85549870738.pdfIn PDF document text
- http://hunting.kg/userfiles/file/ganokozun.pdfIn PDF document text
- http://bitite.lv/media/txt/122/file/15324549778.pdfIn PDF document text
- http://originalbau.hu/imagesfiles/zubodupulefa.pdfIn PDF document text
- http://watdoenwevandaag.nl/upload/65808050449.pdfIn PDF document text
- http://exclusivelimoservice.com/ckfinder/userfiles/files/bepetilitenuxo.pdfIn PDF document text
- http://fabrikando.com/cmsimple/images/file/vuxirelapixorekewa.pdfIn PDF document text
- https://dalton-english.com/userfiles/file/merasusalekito.pdfIn PDF document text
- http://xn--66-6kc8bfmkmjd.xn--p1ai/admin/ckfinder/userfiles/files/gupuborukexijufufiruwa.pdfIn PDF document text
- http://kredoteka.ru/uploads/file/8618749469.pdfIn PDF document text
- http://wjvanderheidedienstverlening.nl/uploads/file/jivolojajo.pdfIn PDF document text
- http://mientrungland.net/uploads/image/files/tepurawaragawupapiki.pdfIn PDF document text
- https://panoramabyty.cz/content/39126347067.pdfIn PDF document text
- http://homokkepek.hu/editor_up/76703701504.pdfIn PDF document text
- http://diagonal.org.ar/wp-content/plugins/formcraft/file-upload/server/content/files/1613838d539b5e---7688107869.pdfIn PDF document text
- http://sun-apartments.pl/data/pages/28645174518.pdfIn PDF document text
- https://dm288.com/slicice/file/gonuwopowuwilonijet.pdfIn PDF document text
- https://implantsdentairesdesmoulins.com/upload/editor/file/23176157966.pdfIn PDF document text
- https://funke.be/data/file/wuzum.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_off000102c7.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x102C7 | 19524 bytes |
SHA-256: 44f076b7aa95686904939f6c2de72b1f327cf56ac9ba2d5a5c406c7898c57054 |
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font_01_sfnt_off000135f8.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x135F8 | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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font_02_sfnt_off00014e0f.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x14E0F | 10868 bytes |
SHA-256: 8309d143f917f7fa7329ab32b253f4c67343f58aeabe60eceff381c2cfd56737 |
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