MALICIOUS
196
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1059.007 JavaScript
The PDF file contains numerous external links, including a link farm and a redirector disguised as a free download lure. The heuristic 'PDF_SEO_LINK_FARM' and 'PDF_SEO_UTM_REDIRECTOR_LINK' indicate a malicious intent to redirect users to potentially harmful sites. The ML classifier and ClamAV detection further support the malicious classification, suggesting this PDF is part of a phishing or malware distribution campaign.
Machine Learning
- Nyx PDF Classifier malicious score 0.9996
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 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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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://zajinet.ru/award?keyword=chromosome+aberration+pdf PDF link annotation
- http://ramifapufebi.scienceontheweb.net/human_anatomy_3d.pdfIn PDF document text
- https://cdn.sqhk.co/nuzozuni/jzXaxjc/tabletop_simulator_d_d_workshop.pdfIn PDF document text
- https://cdn.sqhk.co/zagawodijimo/Pgeiigf/smart_car_shifting_hard.pdfIn PDF document text
- https://cdn.sqhk.co/besudamuge/gehdmjh/timivenunad.pdfIn PDF document text
- https://cdn.sqhk.co/vopunokapire/ue6Ijc9/promo_codes_and_coupons_for_agoda.pdfIn PDF document text
- https://cdn.sqhk.co/gisanewat/PGuw8ig/jawes.pdfIn PDF document text
- https://cdn.sqhk.co/wopidevepip/gjNkpTF/wuludizemoxapevatik.pdfIn PDF document text
- https://cdn.sqhk.co/gefisodir/eohagdN/nepajilesesip.pdfIn PDF document text
- https://cdn.sqhk.co/rapurakoke/hcjhmic/classroom_rules_template_word.pdfIn PDF document text
- https://cdn.sqhk.co/gotakavapu/hiaHjcb/define_feud_anthropology.pdfIn PDF document text
- https://cdn.sqhk.co/bajafigotuvi/d9ibiaz/pro_series_drag_racing_money_glitch.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/pilazi/free_chinese_series_sites.pdfIn PDF document text
- https://s3.amazonaws.com/voropa/69531648284.pdfIn PDF document text
- https://47a25507-5c4f-4e73-9b7c-0c49514c8174.filesusr.com/ugd/e00bd3_4b4b33cfb2e346949125cf90b1336d9a.pdf?index=trueIn PDF document text
- https://s3.amazonaws.com/sivanira/bonaw.pdfIn PDF document text
- https://de99c131-68bf-4271-bcef-cda292486844.filesusr.com/ugd/f5892c_46fef6bc4c1748d08ff213deb31d68d0.pdf?index=trueIn PDF document text
- https://s3.amazonaws.com/kotodur/movimiento_circular_uniforme_concepto.pdfIn PDF document text
- https://s3.amazonaws.com/kitakilesa/savarez_classical_guitar_strings_normal_tension.pdfIn PDF document text
- https://s3.amazonaws.com/kewuxejikiwe/search_engine_reports._net_plagiarism-_checker.pdfIn PDF document text
- https://s3.amazonaws.com/lomiwexuva/6197784495.pdfIn PDF document text
- https://s3.amazonaws.com/mesixadelomomo/wanuruwib.pdfIn PDF document text
- http://rexefobixavater.myartsonline.com/35785625295.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_off00011527.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x11527 | 5296 bytes |
SHA-256: 63920a124a3c468f9920c9080a0de18e984cb291d7c641e857fc72127f187fe1 |
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font_01_sfnt_off000126eb.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x126EB | 11108 bytes |
SHA-256: 2abcac32214b831933b5886dddf33bb30de17727237fc015a39a0b1b81ef05de |
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