MALICIOUS
186
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1059.007 JavaScript
This PDF file was identified as malicious by ML classification and ClamAV, indicating a phishing or trojan payload. It contains a large number of external links, forming a link farm, with the primary URL being https://leonvi.ru/award?keyword=gastritis+cronica+sintomas+pdf. The document's structure and numerous outbound links suggest it is designed to redirect users to potentially harmful content or facilitate SEO manipulation.
Machine Learning
- Nyx PDF Classifier malicious score 0.9996
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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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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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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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://leonvi.ru/award?keyword=gastritis+cronica+sintomas+pdf PDF link annotation
- https://static.s123-cdn-static.com/uploads/4456687/normal_60094a7a489de.pdfIn PDF document text
- https://cdn.sqhk.co/kawinojos/bk3nduB/xenorofifivus.pdfIn PDF document text
- https://cdn.sqhk.co/nujusowidom/ffhh6p1/xivikeregedenalesukabuf.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4490367/normal_5fd8dbcd4122f.pdfIn PDF document text
- https://cdn.sqhk.co/maxegugej/dihZjhw/lomuxowepitolokiwe.pdfIn PDF document text
- https://cdn.sqhk.co/kewukapugino/hjjehhB/idle_sports_city_tycoon_max_level.pdfIn PDF document text
- https://static.s123-cdn-static.com/uploads/4383804/normal_5ff3d8c7c056b.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4417129/normal_6024c56a80b72.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4450042/normal_603b7f7defcc1.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4462073/normal_5fdc141e231c2.pdfIn PDF document text
- https://cdn.sqhk.co/tisufupujeli/UOjjU2u/vologoponi.pdfIn PDF document text
- https://cdn.sqhk.co/kuniremolu/ihhaJl5/3076682725.pdfIn PDF document text
- https://cdn.sqhk.co/zaperarori/kidIifM/17260083949.pdfIn PDF document text
- http://www.ascendercorp.com/In PDF document text
- http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
- https://486bfeb6-87d8-40a3-812f-3449909c9139.filesusr.com/ugd/81b904_bb0ae1796f3349d59b0b8eff0c500d32.pdf?index=trueIn PDF document text
- https://s3.amazonaws.com/lebaxa/tipifel.pdfIn PDF document text
- https://s3.amazonaws.com/biwuwukesazef/abcd_poem_video_free_mp4.pdfIn PDF document text
- https://s3.amazonaws.com/dukavunivifa/58140236889.pdfIn PDF document text
- https://36d3fe4d-ce77-4ecd-ae21-04b42370c250.filesusr.com/ugd/871c54_0a262cdb2d7342bfa3880089bc0a350c.pdf?index=trueIn PDF document text
- https://1094d5c0-a920-47c7-a1de-7e2d56a92d84.filesusr.com/ugd/47b1e8_20d6e3a5d93d409097705e2511daffa0.pdf?index=trueIn PDF document text
- https://31c8a3d4-0132-49f1-a04f-09c79d03e01f.filesusr.com/ugd/a4da84_9c2771c0d48b464893a0efc5ccc6f8da.pdf?index=trueIn PDF document text
- https://5a6df620-610b-4d6f-8f1b-71e936bb70bc.filesusr.com/ugd/1f5cef_405451cd05fb4ad48b80dcf985c033ea.pdf?index=trueIn PDF document text
- https://s3.amazonaws.com/moduxanakuri/2478058819.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_off0000ea9a.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xEA9A | 5300 bytes |
SHA-256: cf0da8bb382b934a19882d823b5beb08b5ba0e6b720057ecefed63cbc327400d |
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font_01_sfnt_off0000fc8f.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xFC8F | 10536 bytes |
SHA-256: 65b8ca72a50798458d26047cfd1339678da6ebda7b8145ea63879d8a28f4e2ec |
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