MALICIOUS
142
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1203 Exploitation for Client Execution
The PDF contains embedded JavaScript and numerous external links, flagged by heuristics as a link farm and a potential phishing lure. ClamAV detection and ML classification strongly indicate malicious intent, likely to deliver a second-stage payload or redirect users to a phishing site. The presence of embedded JS suggests an attempt to exploit vulnerabilities or execute malicious code.
Machine Learning
- Nyx PDF Classifier malicious score 0.9977
Heuristics 7
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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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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://wastran.ru/uplcv?utm_term=what+format+sd+card+for+android PDF link annotation
- http://majedalkarkhi.com/pics/file/92674391629.pdfIn PDF document text
- http://www.smwiarus.pl/ckfinder/userfiles/files/fotogivotekipoxigaxa.pdfIn PDF document text
- http://climtech.com/files/files/48159266077.pdfIn PDF document text
- https://siahotel.com/userfiles/files/75457992381.pdfIn PDF document text
- https://sofupingame.net/calisma2/files/uploads/72119370053.pdfIn PDF document text
- http://epoxidice.ro/mm/file/493414451.pdfIn PDF document text
- https://bibonatura.com/ckfinder/userfiles/files/zudipifagalezakul.pdfIn PDF document text
- https://greenboo.vn/uploads/files/bumafekuxajaze.pdfIn PDF document text
- http://tribo.kz/userfiles/File/robegele.pdfIn PDF document text
- http://japhina.com/upload/file/jokobilamiwisidiwuzu.pdfIn PDF document text
- http://holzweiss.at/12123297212.pdfIn PDF document text
- https://masukpt2.com/contents/files/2461988349.pdfIn PDF document text
- https://servingltda.com/userfiles/file/zivavurolamoxovokimela.pdfIn PDF document text
- http://jysfh.com/upload_fck/file/2021-9-5/20210905223509196108.pdfIn PDF document text
- http://progettogeometra.it/userfiles/files/sirurujinoxarebeleroloxo.pdfIn PDF document text
- http://majortaylorride.info/images/uploaded/file/xutanazi.pdfIn PDF document text
- http://www.colegiometa.net/home/wp-content/plugins/formcraft/file-upload/server/content/files/1614366b00d5bc---jokew.pdfIn PDF document text
- http://blow-w124.com/js/upload/files/redasamanogokuso.pdfIn PDF document text
- http://qhzs88.com/admin/fckeditor_upfiles/file/2021090604452580554.pdfIn PDF document text
- https://www.harnoordesigns.com/wp-content/plugins/super-forms/uploads/php/files/8c1a580e2597df4f6b9e891133b7c294/66227050180.pdfIn PDF document text
- https://vaynhanh365.net/contents/files/34574049807.pdfIn PDF document text
- https://oazapiekna.com/zdjecia/fck/file/ragenazorasuxunapibi.pdfIn PDF document text
- http://ventexevent.se/uploads/file/13563825997.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_off0000d596.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xD596 | 10556 bytes |
SHA-256: 11d6989f103a5daa610ed5b55bdfa20062ef6653b1f72f02137064b210472e09 |
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font_01_sfnt_off0000ed86.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xED86 | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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font_02_sfnt_off00010598.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x10598 | 18248 bytes |
SHA-256: 439027d1bf98e2ed8bfd8d9fbde52d04554e427ec63c5015cf6fdd5e5fa6e361 |
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