MALICIOUS
174
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1203 Exploitation for Client Execution
This PDF document contains embedded JavaScript and external URIs, indicating malicious intent. The heuristic 'SE_BROWSER_INSTALL_LURE' strongly suggests the document is designed to trick the user into installing a browser extension or update. The presence of numerous external links, many on disposable hosting, further supports a phishing or malware distribution scheme. ClamAV detection confirms the malicious nature of the file.
Machine Learning
- Nyx PDF Classifier malicious score 0.9986
Heuristics 7
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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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Browser extension / update installation lure high SE_BROWSER_INSTALL_LUREDocument tells the user to install a browser extension, plugin, viewer, or browser update to view content — a common social-engineering path for credential theft and malware installation
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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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Embedded JS stream low PDF_JSPDF references a /JS stream. Generic JavaScript is common in benign forms; specific dangerous APIs are scored by separate rules.
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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://philabc.ru/uplcv?utm_term=can+i+delete+chrome+from+my+phone PDF link annotation
- https://mut-zur-veraenderung-hambuch.de/userfiles/file/65166964803.pdfIn PDF document text
- http://mygotour.com/FileData/ckfinder/files/20210921_9EFA6A0177460777.pdfIn PDF document text
- http://biirbeh.mn/images/content/file/kabogetakegizefuk.pdfIn PDF document text
- http://tipkeo.com/js/ckfinder/userfiles/files/14829364087.pdfIn PDF document text
- http://www.myhhsi.com/wp-content/plugins/super-forms/uploads/php/files/ad741063f9de07f197d9885589602c17/magotivifivixafirebo.pdfIn PDF document text
- http://specialcats.nl/media/files/jiperikubudukavopido.pdfIn PDF document text
- http://ymjgolf.com/file_media/file_image/file/39278664277.pdfIn PDF document text
- http://bloomx.com/sites/all/sites/bloomx.com/files/48475322703.pdfIn PDF document text
- http://pastadimatteo.com/ckfinder/userfiles/files/fasarubopapudix.pdfIn PDF document text
- http://aftp.bg/userfiles/file/widitezuwanofe.pdfIn PDF document text
- http://indyztyle.com/ckfinder/userfiles/files/27443115913.pdfIn PDF document text
- https://chungangroup.com/uploads/files/202109012214279122.pdfIn PDF document text
- http://pxmonastery.org/CKEdit/upload/files/wemapelafite.pdfIn PDF document text
- https://bvphcn.bdata.vn/upload/files/48328381994.pdfIn PDF document text
- http://dok-vo.ru/userfiles/file/4303902510.pdfIn PDF document text
- http://hongphuc.vn/userfiles/file/87715976025.pdfIn PDF document text
- http://dongshengcable.com/images/upload/File/26083511264.pdfIn PDF document text
- http://cdn.eagle.mn/uploads/userfiles/files/68983015987.pdfIn PDF document text
- http://www.julietlandau.com/fckeditor/userfiles/file/99625402884.pdfIn PDF document text
- http://www.predoisiasociatii.ro/wp-content/plugins/formcraft/file-upload/server/content/files/16147b3cf63b42---wibalubiwo.pdfIn PDF document text
- https://beautydent.hu/editor_up/60284971676.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_off0000b526.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xB526 | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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font_01_sfnt_off0000cd3d.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xCD3D | 10864 bytes |
SHA-256: 031c26b61c919a1ca651dca01c9c8737aa95bfdad6c48ca21fbfb0fb0063ea0b |
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font_02_sfnt_off0000e61d.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xE61D | 17236 bytes |
SHA-256: f544e91798d362e5a806881540db150e4edf99159681eb88e04355906cc7d870 |
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