MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1059.007 JavaScript
The PDF contains numerous external links, with a critical heuristic identifying a link farm designed to host multiple PDF files. One of the primary URLs, https://vilenefex.ru/award?keyword=brachioradialis+rehab+exercises+pdf, suggests a lure related to rehabilitation exercises, likely a pretext for a phishing or malware download attempt. The ML classifier and ClamAV detection strongly indicate malicious intent.
Machine Learning
- Nyx PDF Classifier malicious score 0.9998
Heuristics 5
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Small PDF contains mass external PDF link farm critical PDF_SEO_LINK_FARMSmall PDF contains many clickable external PDF links, mostly clustered on one host. This matches generated SEO/link-farm PDF carriers used to route users into malicious or unwanted-software delivery chains, rather than a normal document citation pattern.
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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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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=brachioradialis+rehab+exercises+pdf
- http://rutenowataba.iblogger.org/buzoxikosini.pdf
- http://wobijovo.22web.org/tilogupomur.pdf
- http://taygerr.com/osmosis_and_tonicity_worksheet3kfq0.pdf
- http://lnstagram-help-businesss.com/72210395942dkxs8.pdf
- http://www.ascendercorp.com/
- http://www.ascendercorp.com/typedesigners.html
- http://tividisexagit.epizy.com/xevuneputisuvov.pdf
- https://s3.amazonaws.com/fizup/2912330233.pdf
- https://s3.amazonaws.com/bomupi/94410833700.pdf
- http://nilezowavegat.rf.gd/oligopoly_market_structure.pdf
- https://s3.amazonaws.com/sitok/amr_diab_albums.pdf
- https://s3.amazonaws.com/zunaduxa/socratic_seminar_worksheet_4th_grade.pdf
- https://37e0f79d-b0c1-4727-b76d-5b759c81288f.filesusr.com/ugd/9c66ff_bc5e18f14bb44d85b6be86a366c3327e.pdf?index=true
- http://gidatefasu.rf.gd/understanding_body_language.pdf
- https://s3.amazonaws.com/desenaz/avp_alien_vs_predator_mod_apk.pdf
- https://s3.amazonaws.com/mukut/sutimibegilebizizuxabet.pdf
- http://gozadowosib.rf.gd/celebrity_equinox_deck_plan.pdf
- https://s3.amazonaws.com/tobaziw/hp_pavilion_dv6000_webcam_drivers_for_windows_7_32_bit.pdf
- https://d872ce2a-2baf-4032-ab86-ab75b2f66d52.filesusr.com/ugd/338562_106d7bb86e094611a2d38ae1bf336a57.pdf?index=true
- https://s3.amazonaws.com/lorifumofelu/54189418448.pdf
- http://zekajawud.epizy.com/63950695057.pdf
- http://www.w3.org/1999/02/22-rdf-syntax-ns#
- http://purl.org/dc/elements/1.1/
- http://ns.adobe.com/pdf/1.3/
- http://ns.adobe.com/xap/1.0/
- http://ns.adobe.com/xap/1.0/mm/
- http://ns.adobe.com/xap/1.0/rights/
- http://scripts.sil.org/OFL
Extracted artifacts 2
Files carved from inside the sample during analysis.
| Filename | Kind | Source | Size |
|---|---|---|---|
font_00_sfnt_off0000f557.bin1d80b1a5626beafa0365515b27092bc5122fce560fd0c42e7d8033ceed2a92fd |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xF557 | 5500 bytes |
font_01_sfnt_off00010802.bin8b6de6eed11fd5f415a95c034109e8f4dbbe2948e4a760b82f19c56a08da0f5d |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x10802 | 10816 bytes |
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