MALICIOUS
142
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1204.002 Malicious Link
The PDF contains embedded JavaScript and numerous external links, many of which are part of a link farm pointing to disposable hosting. The presence of a 'download button' heuristic and ClamAV detection strongly indicates a malicious intent, likely to trick users into downloading malware or visiting phishing sites. The embedded JavaScript is likely used to facilitate the redirection or download process.
Machine Learning
- Nyx PDF Classifier malicious score 0.9981
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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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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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://drafthe.ru/uplcv?utm_term=psiphon+cracked+apk PDF link annotation
- https://zippy-inc.com/app/webroot/userfiles/files/tibiwogivulovubokoje.pdfIn PDF document text
- http://mpu-beratung-brendle.de/userfiles/file/gadigodanifub.pdfIn PDF document text
- http://hp-cnc.de/uploads/files/degono.pdfIn PDF document text
- http://drapa-technika.cz/UserFiles/File/8050756436.pdfIn PDF document text
- http://poongdung.com/FileData/ckfinder/files/20210919_32278CA174588057.pdfIn PDF document text
- https://777mto.info/contents/files/tewiwowujukibujezokurog.pdfIn PDF document text
- https://kiaavcilar.com/upload/ckfinder/files/77453419946.pdfIn PDF document text
- http://integrotech.pl/zdjecia/file/bigokogope.pdfIn PDF document text
- http://centrlita.ru/archive/image/file/bulaxa.pdfIn PDF document text
- https://thesmithgrouphouston.com/wp-content/plugins/super-forms/uploads/php/files/65eb2b1b8d36a01d8633e1777ada465d/zopuxesixetizipijuzulu.pdfIn PDF document text
- http://irinaburmistrova.ru/files/85717056403.pdfIn PDF document text
- http://sun-marche.com/app/webroot/js/ckfinder/userfiles/files/67926603702.pdfIn PDF document text
- http://divyabodhanam.org/userfiles/file/kibamudefipefu.pdfIn PDF document text
- https://praktijk-fix.nl/userfiles/image/file/66744015882.pdfIn PDF document text
- https://stcatherine.ac.ug/wp-content/plugins/formcraft/file-upload/server/content/files/161411d03a902e---segerovoguvuve.pdfIn PDF document text
- https://stealthwindow.tw/uploads/files/202109210148498904.pdfIn PDF document text
- http://agriturismolataggiasca.eu/userfiles/files/13945754831.pdfIn PDF document text
- https://bisleriwheel.genefied.co/ckfinder/userfiles/files/20458399165.pdfIn PDF document text
- http://dintainoodle.com/uploads/files/taponutepaworuzivir.pdfIn PDF document text
- https://glozorcom.merlak.ru/userfiles/file/zinovigagawigixu.pdfIn PDF document text
- http://almavilag.hu/files/files/fikirenixalejudun.pdfIn PDF document text
- http://ccswcd.com/userfiles/file/55969018027.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_off0000e4ed.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xE4ED | 17772 bytes |
SHA-256: 9f1e9d70b29c540418b2bc822db2f6375d52b05af1e95a02d2ff44f32202e506 |
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font_01_sfnt_off000112ac.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x112AC | 10560 bytes |
SHA-256: 889b03c24361b884840edc7872d1d955b45a84fbcd53b198e993c75d074d29cf |
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font_02_sfnt_off00012aa9.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x12AA9 | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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