MALICIOUS
186
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1059.007 JavaScript
This PDF file exhibits characteristics of a link farm, containing numerous external URLs that lead to other PDF documents. The heuristic 'PDF_SEO_LINK_FARM' and 'PDF_SEO_DISPOSABLE_LINK_FARM' indicate a high volume of links, likely intended to manipulate search engine rankings or distribute malicious content. The ClamAV detection and ML classifier further support its malicious nature, classifying it as a phishing trojan. No scripts were extracted, but the primary attack pattern involves redirecting users to potentially harmful external sites.
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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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://pelibifir.ru/award?keyword=descargar+libros+de+gustavo+adolfo+becquer+pdf PDF link annotation
- https://madonosole.weebly.com/uploads/1/3/4/5/134582414/xatiw.pdfIn PDF document text
- https://lovapunosarimol.weebly.com/uploads/1/3/5/4/135401421/kiwugag_nowotabojijudib_wanenipogeluf_supugiwu.pdfIn PDF document text
- http://mysteps.online/86512846430wkj0v.pdfIn PDF document text
- http://opticsystem.website/gizofuboxefufidatodeby148.pdfIn PDF document text
- http://matteset-spon.space/star_wars_heroes_mod_guide8ypjt.pdfIn PDF document text
- http://koolmaxt.online/50424502977up6mz.pdfIn PDF document text
- https://xisovunegukizak.weebly.com/uploads/1/3/4/8/134868464/wedoseb-laxidixipejufi-mutumi-zojanejufup.pdfIn PDF document text
- https://lafefozusut.weebly.com/uploads/1/3/4/5/134597047/ecab1.pdfIn PDF document text
- https://sujarazigis.weebly.com/uploads/1/3/0/8/130813042/tadesude-wamodujowoxow.pdfIn PDF document text
- https://gigotuvo.weebly.com/uploads/1/3/1/1/131164366/707750.pdfIn PDF document text
- http://bt-management.website/79490639748kfakq.pdfIn PDF document text
- https://lilepixot.weebly.com/uploads/1/3/4/4/134462463/377413.pdfIn PDF document text
- http://exampl1214.com/osha_safety_training_requirementsgz165.pdfIn PDF document text
- https://xexemisekugo.weebly.com/uploads/1/3/4/6/134679242/5864368.pdfIn PDF document text
- http://pinerapidsrr.com/xedikokifizovifoxevapd6mt.pdfIn PDF document text
- https://lonumuzab.weebly.com/uploads/1/3/4/2/134234730/kivirusosuda.pdfIn PDF document text
- http://www.ascendercorp.com/In PDF document text
- http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
- https://fecd0c08-032d-4b8b-b26c-6108aca7a00f.filesusr.com/ugd/a87c8b_7def1677f9624cdc85363367b720a659.pdf?index=trueIn PDF document text
- https://uploads.strikinglycdn.com/files/cddcd4b1-f653-423b-b902-fbf55c46b65e/libros_en_espaol_para_nios_de_primer_grado_gratis.pdfIn PDF document text
- https://a001dc82-f31e-4944-9b76-0a8e602b6855.filesusr.com/ugd/e4ee87_a29ed5cdf6554991b2c74c96d68b715b.pdf?index=trueIn PDF document text
- https://uploads.strikinglycdn.com/files/42a29528-c686-4d67-a221-fe610bd3d997/techno_gears_marble_mania_crankster_instructions.pdfIn PDF document text
- https://b47237a6-1880-4d87-9598-f01162bab054.filesusr.com/ugd/1fe0ea_382827b6d4364be0b340530aacc2f383.pdf?index=trueIn PDF document text
- https://uploads.strikinglycdn.com/files/3263ba6f-78a7-4a58-beea-8406544d8e53/dobexewomabomoxeregopi.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_off00012d69.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x12D69 | 5648 bytes |
SHA-256: f0c2bdb652a2df76c5cbbac4ba1a36c021a2b3fe7932a36f1be85e5bf5980c5f |
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font_01_sfnt_off000140ae.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x140AE | 12676 bytes |
SHA-256: 96e7e11b3bfab583bf45ca52bb3a945c7745b0e595f6a9ccd8713cba15d954d0 |
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