MALICIOUS
136
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1059.007 JavaScript
The PDF file was detected as malicious by ClamAV and an ML classifier, and contains a high-severity heuristic indicating it's an SEO redirector link for phishing. The embedded URL, https://pelibifir.ru/123?utm_term=hernia+diafragmatica+en+adultos+pdf, is used to lure the user into downloading a file under the guise of providing information on 'hernia diafragmatica en adultos pdf'. No scripts were extracted, but the overall pattern suggests a phishing attempt disguised as a document download.
Machine Learning
- Nyx PDF Classifier malicious score 0.9992
Heuristics 5
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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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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://pelibifir.ru/123?utm_term=hernia+diafragmatica+en+adultos+pdf PDF link annotation
- https://s3.amazonaws.com/bomupi/pediatrics_advanced_life_support_guidelines.pdfIn PDF document text
- http://study-english-05.site/cosco_simple_fold_high_chair_washing_instructions9ga63.pdfIn PDF document text
- http://afracheat1.xyz/the_great_i_am_lyrics_james_fortunerq3pn.pdfIn PDF document text
- http://wofurasosezisax.mywebcommunity.org/vuwidiliruxuxi.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4446275/normal_602c336380087.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4485163/normal_602b52618c482.pdfIn PDF document text
- https://s3.amazonaws.com/patilawasu/doom_rpg_android_apk.pdfIn PDF document text
- https://s3.amazonaws.com/lomogas/chartered_financial_analyst_cfa_institute.pdfIn PDF document text
- https://static.s123-cdn-static.com/uploads/4426075/normal_5fe29fc8a2e7c.pdfIn PDF document text
- https://s3.amazonaws.com/fujadabez/38466721766.pdfIn PDF document text
- http://womovenum.sportsontheweb.net/jujufepemizijojuroja.pdfIn PDF document text
- http://flowerport.market/jixoridabapexasusukexovamcck4.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4490272/normal_5fd60f1e1a22e.pdfIn PDF document text
- http://istra-backwater.ru/buxujododr7.pdfIn PDF document text
- http://igme.site/what_is_secret_city_on_netflix_about4uwxj.pdfIn PDF document text
- http://grigolia-studio.ru/30412980190qa9j3.pdfIn PDF document text
- http://xtreme-sport.ru/95438279879ycbx2.pdfIn PDF document text
- http://kinoxca.xyz/pusanawobiwakofubomemeezyhr.pdfIn PDF document text
- https://s3.amazonaws.com/jemisajoda/60540766479.pdfIn PDF document text
- https://s3.amazonaws.com/tokit/74406224874.pdfIn PDF document text
- http://yatvoyya.fun/velineon_vxl-3s_specsccpv5.pdfIn PDF document text
- http://www.ascendercorp.com/In PDF document text
- http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
- http://fuluxewamotate.atwebpages.com/52123710221.pdfIn PDF document text
- http://nojikigor.myartsonline.com/use_a_geometric_formula_to_evaluate_the_integral_calculator.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_off00010b96.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x10B96 | 5436 bytes |
SHA-256: 2a07fef6c2ebdf96985f42f65bb7e56a0380f6577d9a06d5a490ab43657302d6 |
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font_01_sfnt_off00011e02.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x11E02 | 11996 bytes |
SHA-256: 993b0f2efad39c6b35c2359795a6aeecbac7cc15f0e028cbe775e6ca46259dd4 |
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