MALICIOUS
134
Risk Score
Malware Insights
MITRE ATT&CK
T1059.007 JavaScript
T1566.001 Spearphishing Attachment
The PDF contains embedded JavaScript and multiple external URIs, indicating an attempt to redirect the user to malicious websites. The heuristic 'PDF_SEO_DISPOSABLE_LINK_FARM' suggests a large number of links pointing to disposable hosting, reinforcing the phishing or malware distribution motive. The ML classifier and ClamAV detection strongly indicate malicious intent.
Machine Learning
- Nyx PDF Classifier malicious score 0.9898
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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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://infrive.ru/uplcv?utm_term=free+ebook+creator+software PDF link annotation
- http://hong-tour.com/FileData/ckfinder/files/20210918_2E42C37A219E9A8C.pdfIn PDF document text
- http://damosushipleasanthill.com/uploads/files/6107318651.pdfIn PDF document text
- http://modelseafarm.com/kweb/ckfinder/userfiles/files/74161733495.pdfIn PDF document text
- https://spandoekland.nl/userfiles/file/41230263649.pdfIn PDF document text
- https://haysalon.com/public_html/userfiles/file/weruvuvereligusedejogisi.pdfIn PDF document text
- http://asavn.vn/uploads/userfiles/files/55802655837.pdfIn PDF document text
- http://el-master.ru/userfiles/file/nokesez.pdfIn PDF document text
- http://thuocamakong.net/userfiles/image/file/74482190036.pdfIn PDF document text
- http://fairbank-ia.org/admin/ckfinder/userfiles/files/79693864849.pdfIn PDF document text
- http://fishingas.com/userfiles/file/95246413302.pdfIn PDF document text
- https://libertyrealestate.in/ckfinder/userfiles/files/33672449336.pdfIn PDF document text
- https://dalilak1.com/userfiles/file/zuverudawosu.pdfIn PDF document text
- http://vivaibonomo.it/userfiles/files/somulipumu.pdfIn PDF document text
- https://popa.com.br/wp-content/plugins/super-forms/uploads/php/files/d4499596679ab4f87b3353c5d83211b1/28201371064.pdfIn PDF document text
- https://ecodiagnost.com/ckfinder/userfiles/files/72353207067.pdfIn PDF document text
- https://nuttydog.hu/ckfinder/userfiles/files/xumosuresijifunubevepas.pdfIn PDF document text
- https://quangcaowebsite.vn/uploads/files/redelexozifiladeruna.pdfIn PDF document text
- http://xedaptheduc.net/app/webroot/uploads/files/77258560906.pdfIn PDF document text
- https://bauarch.bg/files/73428830384.pdfIn PDF document text
- https://giga-tronics.com/userfiles/files/vitimevan.pdfIn PDF document text
- https://gift-edu.ru/wp-content/plugins/super-forms/uploads/php/files/749906ef649c55d0988e43e5962d0620/92135672354.pdfIn PDF document text
- http://koryosushi.com/uploads/files/jifef.pdfIn PDF document text
- http://auto-spec.ca/fck/file/xaniluvebifepul.pdfIn PDF document text
- https://chandrakantmusicacademy.org/ckfinder/userfiles/files/nadudavobijefisenemoza.pdfIn PDF document text
- https://mbzgogo.xyz/web/img/podborky/files/18537669264.pdfIn PDF document text
- http://maezawa-jidousha.com/js/upload/files/43523905330.pdfIn PDF document text
- http://degeninhotel.ru/admin/ckfinder/userfiles/files/95520124035.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_off0000ddc6.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xDDC6 | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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font_01_sfnt_off0000f5d8.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xF5D8 | 17196 bytes |
SHA-256: 79b80f5374e61ea4e9a9c95f150d53153f0d957f1e7206bf763ff1aa7aa0bfe8 |
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font_02_sfnt_off00012274.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x12274 | 10384 bytes |
SHA-256: eba064f6f17018259c4e3eb1f4d15ac411e9759c1ec6fe4f6eed10538456c9f7 |
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