MALICIOUS
136
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1059.007 JavaScript
The PDF file was identified as malicious by ML classifiers and ClamAV, specifically flagged as phishing. It contains an embedded URI that redirects to a suspicious domain, vilenefex.ru, which is likely part of a phishing campaign. The document body, though heavily obfuscated, suggests a lure related to academic content to entice users to click the malicious link.
Machine Learning
- Nyx PDF Classifier malicious score 0.9991
Heuristics 5
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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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Image lure linking to an SEO redirector (free-download phishing) high PDF_SEO_UTM_REDIRECTOR_LINKPDF embeds an image with little or no body text and a clickable link to a multi-word utm_term / FeedBurner-proxied SEO redirector — the 'free ebook / solution-manual / document download' phishing family that ranks for natural-language search queries and routes the user into a payload/redirect chain. The PDF carries no exploit; the risk is the linked destination. Flagged structurally (image lure + SEO redirector) so it does not depend on a ClamAV/ML signature, and regardless of how many filler text pages the lure carries.
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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://vilenefex.ru/award?keyword=digestion+intracelular+y+extracelular+pdf PDF link annotation
- https://static.s123-cdn-static.com/uploads/4495413/normal_5fca82e9c4392.pdfIn PDF document text
- https://cdn.sqhk.co/navowugone/8Jjarjb/15981327216.pdfIn PDF document text
- https://static.s123-cdn-static.com/uploads/4505326/normal_5fc8f8b0bffb3.pdfIn PDF document text
- http://ing-jobs-opportunities.com/merusamelisilupubmb442.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4457563/normal_60349c906bf59.pdfIn PDF document text
- http://itsamorem.com/keiichi_okabe_nierautomata_original_soundtrackdjmh9.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4477629/normal_6015d66dca5b9.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4489041/normal_5fda83d486286.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4377706/normal_602af44558252.pdfIn PDF document text
- http://mazafaka69pussy.online/jilazirexavuraderogujneiqd.pdfIn PDF document text
- https://cdn.sqhk.co/lobinazema/qwigdih/splendora_high_school_bell_schedule.pdfIn PDF document text
- https://cdn.sqhk.co/rozesivotix/eNjaV83/89641458612.pdfIn PDF document text
- https://cdn.sqhk.co/putuziboki/pWUW3gj/annoying_cookies_vs_claus_game.pdfIn PDF document text
- https://cdn.sqhk.co/zetanitanedo/WLo3OxC/53317123468.pdfIn PDF document text
- http://hotita.space/japolugafaburuwevutezu2zg1.pdfIn PDF document text
- https://static.s123-cdn-static.com/uploads/4481285/normal_5ffe62e5e15cb.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4394062/normal_5fe84642175d4.pdfIn PDF document text
- https://static.s123-cdn-static.com/uploads/4467277/normal_5ffab0874d9b6.pdfIn PDF document text
- http://chelobaka.space/femefagojulaf23zg.pdfIn PDF document text
- http://www.ascendercorp.com/In PDF document text
- http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
- https://s3.amazonaws.com/lakadutof/exponential_functions_worksheet_algebra_2_answers.pdfIn PDF document text
- https://s3.amazonaws.com/girilifawuxi/connect_my_canon_mg3600_printer_to_wifi.pdfIn PDF document text
- https://s3.amazonaws.com/pegebunov/the_abominable_bride_sherlock.pdfIn PDF document text
- https://s3.amazonaws.com/bupaxomu/divusegoli.pdfIn PDF document text
- https://s3.amazonaws.com/fonibinaraj/pirigawebilisok.pdfIn PDF document text
- https://s3.amazonaws.com/risisipajole/buzipejex.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://scripts.sil.org/OFLIn PDF document text
Extracted artifacts 2
Files carved from inside the sample during analysis.
| Filename | Kind | Source | Size |
|---|---|---|---|
font_00_sfnt_off0000f008.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xF008 | 5492 bytes |
SHA-256: 5d8db5683dbd64fb8dd13a7ed7628f033cc490b33096ab730e5c01307e950345 |
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font_01_sfnt_off000102dd.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x102DD | 11376 bytes |
SHA-256: b4cbbf102be0121d6aa885345367eaa8b90b8161607fb8aef1695c715154b111 |
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