MALICIOUS
90
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
The PDF contains embedded JavaScript and multiple external URLs, indicating a potential for malicious activity. Heuristics suggest it functions as a link farm and uses social engineering tactics like urgency and download buttons to trick users. The ML classifier strongly flagged this PDF as malicious, supporting the conclusion that it is designed to lead users to malicious content or downloads.
Machine Learning
- Nyx PDF Classifier malicious score 0.9977
Heuristics 7
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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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Urgency / deadline lure low SE_URGENCY_LUREDocument contains urgency or deadline language ('account will be terminated', 'action required within 24 hours', etc.) — useful context, but low-signal without other findings
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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://infrive.ru/uplcv?utm_term=my+hero+academia+two+heroes+free+dub PDF link annotation
- https://genesisbehaviorcenter.com/wp-content/plugins/super-forms/uploads/php/files/6dbb22afb4752c4f39ec02a72dac0969/pogoxogipufezibejod.pdfIn PDF document text
- http://bamila.vn/luutru/files/bexuw.pdfIn PDF document text
- http://imosa.asia/uploads/files/202109110846089494.pdfIn PDF document text
- https://chinatupai.com/web/js/ckfinder/userfiles/files/retuludoxif.pdfIn PDF document text
- https://hotnews.md/upload/userfiles/files/vuzikozowo.pdfIn PDF document text
- https://spitalmoldovanoua.ro/ckfinder/userfiles/files/parilewoxefalowozar.pdfIn PDF document text
- http://yuha.be/_files/file/xudosa.pdfIn PDF document text
- http://mmckno2010.zkosuchdol.info/files/letubivaparepem.pdfIn PDF document text
- http://shahgrp.com/uploads/pixos.pdfIn PDF document text
- http://ilovehikari.com/uploads/files/28043135650.pdfIn PDF document text
- http://bioident.pl/photos_fck/file/46602387573.pdfIn PDF document text
- http://antonioruizabogados.es/userfiles/file/jabodezavutiw.pdfIn PDF document text
- http://timocomputer.cz/files/file/79123364135.pdfIn PDF document text
- https://nguyenhungstone.com/uploads/image/files/gasozariwo.pdfIn PDF document text
- https://superpackeg.com/userfiles/file/mofururutisek.pdfIn PDF document text
- http://hk-keber.de/images/file/28033647862.pdfIn PDF document text
- http://criminisiepartners.it/userfiles/files/fugegixuwop.pdfIn PDF document text
- https://strategieb2b.com/userfiles/file/kexagogolopudepu.pdfIn PDF document text
- http://www.1000ena.com/wp-content/plugins/formcraft/file-upload/server/content/files/1613a1f4acb42d---jokavararedipekoden.pdfIn PDF document text
- http://forter.vn/hinhanh/file/nazegugak.pdfIn PDF document text
- http://www.findvoters.com/userfiles/file/60543737997.pdfIn PDF document text
- http://beamstraffic.ae/amb/userfiles/file/zosupuvuxemamowekekoga.pdfIn PDF document text
- http://tweddlefoto.com/files_contenidos/upload/files/nulux.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_off0000cfd7.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xCFD7 | 11024 bytes |
SHA-256: 8b5e8241d8be47c16cbe245c822d1be653e3ab66320a53e92a3f338f1f5f14ff |
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font_01_sfnt_off0000e996.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xE996 | 19508 bytes |
SHA-256: ff505737213f821faf7d6b978f307fd0ab4ccfba4576e55b5043f8fc2cfe2aef |
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font_02_sfnt_off00011d89.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x11D89 | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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