MALICIOUS
254
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1204.001 Malicious Link
The PDF contains a high number of embedded links, many of which point to redirectors and known malicious infrastructure. The heuristic PDF_MALICIOUS_REDIRECTOR_LINK and PDF_SEO_LINK_FARM indicate a strong intent to direct users to harmful sites. The ML classifier and ClamAV detection further support the malicious nature of this document.
Machine Learning
- Nyx PDF Classifier malicious score 0.9998
Heuristics 6
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ClamAV: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0 critical CLAMAV_DETECTIONClamAV detected this file as malware: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0
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PDF links to known malicious redirector infrastructure critical PDF_MALICIOUS_REDIRECTOR_LINKPDF contains a clickable URI to redirector infrastructure used by a known malicious PDF SEO/adware delivery campaign. These documents typically rely on user interaction and redirect chains rather than a PDF parser vulnerability.
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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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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://dafemum.ru/strik?utm_term=why+discipline+is+freedom In PDF document text
- https://static.s123-cdn-static.com/uploads/4477863/normal_5fce7a46648db.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4383695/normal_603404e19d2cc.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4483867/normal_6038432f2fb40.pdfIn PDF document text
- https://cdn.sqhk.co/kawurefeki/ijgcjdr/18065615801.pdfIn PDF document text
- https://static.s123-cdn-static.com/uploads/4421471/normal_5fee056ce4e3f.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4417990/normal_605b1d33ea45f.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4465250/normal_6044f4fc3caa6.pdfIn PDF document text
- https://static.s123-cdn-static.com/uploads/4481676/normal_6000855996e02.pdfIn PDF document text
- https://gepidoduxaw.weebly.com/uploads/1/3/5/3/135324144/jatuvi_xizete_tupuburiv_buxisudatu.pdfIn PDF document text
- https://cdn.sqhk.co/dudurejavir/zzAgihi/76790876844.pdfIn PDF document text
- https://static.s123-cdn-static.com/uploads/4410214/normal_6006bd6274c45.pdfIn PDF document text
- https://static.s123-cdn-static.com/uploads/4476593/normal_5feb014ab7ba7.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4418783/normal_6018a9139db32.pdfIn PDF document text
- https://cdn.sqhk.co/zajujinul/JteAghE/pajina_para_ganar_diamantes_gratis.pdfIn PDF document text
- https://laxukiwu.weebly.com/uploads/1/3/1/0/131070933/pedinaj_ligubawure_pamutifabulasu.pdfIn PDF document text
- http://www.ascendercorp.com/In PDF document text
- http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
- https://uploads.strikinglycdn.com/files/a3fc58e0-6275-40ab-be92-6a35cdf79778/difference_between_spring_framework_and_spring_boot.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/051a2deb-e93e-40bf-993b-c31093feb11b/sharp_objects_trailer_subtitles_episode_7.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/766125ed-a031-4615-8cdd-b108a615e3d9/what_is_meant_by_non-verbal_communication_in_marathi.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/3ee9ffbe-3d7b-4f15-9837-0707081b65ce/god_is_disappointed_in_you_download.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_off0000f251.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xF251 | 5300 bytes |
SHA-256: f13beddb287e4e4c3252117935f4c35075b7c38adfbd5b4bff2ef225aad5ff35 |
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font_01_sfnt_off0001044b.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x1044B | 10736 bytes |
SHA-256: 7d7c7235ac7511e707fc906d667460fdde0ffec70612d71d5a65725dde96133e |
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