MALICIOUS
196
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1059.007 JavaScript
The PDF contains numerous external links, many pointing to SEO-optimized PDF files, suggesting a link farm designed to attract traffic. The primary malicious URL, 'https://jottigo.ru/wix?keyword=the+official+guide+to+the+new+toefl+ibt+pdf+free+download', is identified as a redirector for phishing or malware distribution. Heuristics like 'PDF_SEO_LINK_FARM' and 'PDF_SEO_UTM_REDIRECTOR_LINK' strongly indicate a malicious intent to lure users through deceptive free download content.
Machine Learning
- Nyx PDF Classifier malicious score 0.9997
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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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://jottigo.ru/wix?keyword=the+official+guide+to+the+new+toefl+ibt+pdf+free+download PDF link annotation
- https://pudijeda.weebly.com/uploads/1/3/4/5/134586696/ffbf6f25529.pdfIn PDF document text
- https://vumirexow.weebly.com/uploads/1/3/2/7/132740730/3633353.pdfIn PDF document text
- https://petuxomurekag.weebly.com/uploads/1/3/0/8/130874153/pidobubiv.pdfIn PDF document text
- https://bukodebavuv.weebly.com/uploads/1/3/4/6/134657655/1726185.pdfIn PDF document text
- https://pijusutuwo.weebly.com/uploads/1/3/1/4/131407307/jumusome.pdfIn PDF document text
- https://rowevopa.weebly.com/uploads/1/3/1/8/131872281/1d0d454.pdfIn PDF document text
- https://belujewirozem.weebly.com/uploads/1/3/2/6/132681559/xibes.pdfIn PDF document text
- http://itanah.space/66893568481wf5rn.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/tamobalasu/green_bay_packers_injury_report_2018.pdfIn PDF document text
- https://s3.amazonaws.com/sesafefanulokam/text_to_speech_indian_voice_free.pdfIn PDF document text
- https://s3.amazonaws.com/rezugekolaba/blackberry_os_7._1_apps.pdfIn PDF document text
- https://s3.amazonaws.com/nedijowewoded/28415447517.pdfIn PDF document text
- https://s3.amazonaws.com/zopenave/bojij.pdfIn PDF document text
- https://s3.amazonaws.com/zafijukopa/xovuropozovopo.pdfIn PDF document text
- https://s3.amazonaws.com/numegubowalonan/agriculture_technology_information_center.pdfIn PDF document text
- https://s3.amazonaws.com/napoledunadigo/if_clause_quiz_with_answers.pdfIn PDF document text
- https://s3.amazonaws.com/wajufifenoxuj/xisuzosewodu.pdfIn PDF document text
- https://s3.amazonaws.com/nuvukivaxiren/wopuzosokaxoweresab.pdfIn PDF document text
- https://s3.amazonaws.com/forupokisip/64729940051.pdfIn PDF document text
- https://s3.amazonaws.com/tugabijenovili/mabefikimutud.pdfIn PDF document text
- https://s3.amazonaws.com/zatazewoz/bowers_and_wilkins_p5_wireless_user_manual.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_off0000c053.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xC053 | 5420 bytes |
SHA-256: ba3e905d10d99cd249c70a1032293c6a80c6a2d97bb64f890022c5259c038db4 |
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font_01_sfnt_off0000d2cb.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xD2CB | 10488 bytes |
SHA-256: 0a29740a0f56807665a1bddaecc2644f0f5e399bd7e3e35c3abdd2b6014c0c4a |
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