MALICIOUS
174
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1203 Exploitation for Client Execution
The PDF contains embedded JavaScript and multiple external URIs, indicating malicious intent. The 'SE_BROWSER_INSTALL_LURE' heuristic strongly suggests the document is designed to trick the user into installing a malicious browser extension or update. The ML classifier and ClamAV detection further support its malicious nature. The embedded JavaScript likely facilitates the download and execution of a secondary payload.
Machine Learning
- Nyx PDF Classifier malicious score 0.9951
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://synerhu.ru/uplcv?utm_term=ben+ten+cosmic+destruction+apk PDF link annotation
- https://history.tlshaa.org.tw/ckfinder/userfiles/files/mapowekebalusuv.pdfIn PDF document text
- http://business-plan-capalpha.eu/mbp/upload/images/images/upload/ckfinder/66911787851.pdfIn PDF document text
- https://www.hagensmarketing.com/wp-content/plugins/formcraft/file-upload/server/content/files/16142026c8875d---liwugebuvojatem.pdfIn PDF document text
- http://educaholistica.com/resources/img/imagesck/files/85528837732.pdfIn PDF document text
- http://pincesorvarshop.hu/editor_up/barupemujolukexap.pdfIn PDF document text
- http://bigcool.net/webroot/img/files/dikimijeragen.pdfIn PDF document text
- https://mondoaudio.it/img/uploaded/file/fozupoxesu.pdfIn PDF document text
- http://capitolmetrophysicaltherapy.com/userfiles/file/35728003678.pdfIn PDF document text
- http://doo-san.com/userfiles/file/20210918034856.pdfIn PDF document text
- http://foto-preiss.at/upload_files/files/tinigifetiz.pdfIn PDF document text
- http://asv-solnice.cz/_files/file/nepejulitiwedomadibukef.pdfIn PDF document text
- https://tssch.in/tssch/application/admin/uploads/file/25205251498.pdfIn PDF document text
- https://tjpapigroup3.com/contents/files/48581582545.pdfIn PDF document text
- http://secureyun.cn/uploadfile/file///2021091606013490.pdfIn PDF document text
- http://kozszemle.hu/uploads/files/99565178935.pdfIn PDF document text
- https://pabausa.org/wp-content/plugins/formcraft/file-upload/server/content/files/16144833c65d12---fupuwatogufosi.pdfIn PDF document text
- http://mstreatmentadvances.com/userfiles/files/34183672278.pdfIn PDF document text
- http://smingames.com/ckfinder/files/96511947724.pdfIn PDF document text
- http://shesob.com/file/files/tibakugudometuvij.pdfIn PDF document text
- http://xn--5dbfbdrd7azav1bcx.com/sites/default/files/file/jevosevim.pdfIn PDF document text
- https://bawauang.com/contents/files/jatepetutonipilo.pdfIn PDF document text
- http://hoclaixebinhthuan.com/upload/contentFile/file/4922649834.pdfIn PDF document text
- http://bona-agra.pl/Upload/file/belepexizikopasab.pdfIn PDF document text
- http://bobas24.pl/Upload/file/5540071903.pdfIn PDF document text
- http://rymwid-training.com/userfiles/file/95082033645.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_off0000e463.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xE463 | 17980 bytes |
SHA-256: 6339a749ecddf500d41491a37e9e77f488ed8b400084292a523d14f3f739e715 |
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font_01_sfnt_off0001130e.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x1130E | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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font_02_sfnt_off00012b25.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x12B25 | 10872 bytes |
SHA-256: 0019144a489751a2ea8d02032ff9cc2df5342a17631747cf1bdf939f57d698ff |
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