MALICIOUS
192
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1059.007 JavaScript
This PDF file was flagged as malicious by multiple heuristics and a machine learning classifier. It contains numerous embedded URLs, with at least one identified as a known malicious redirector. The document body, though partially corrupted, suggests a lure for a 'Libro azul 2021 pdf gratis', indicating a phishing or scam attempt. The presence of embedded URLs and the nature of the lure point towards an attempt to direct users to malicious websites.
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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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 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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Fake invoice / payment lure low SE_INVOICE_LUREDocument contains invoice or payment language paired with an action verb — useful context when combined with link, macro, or attachment indicators
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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://yafferge.ru/strik?utm_term=libro+azul+2021+pdf+gratis In PDF document text
- http://lidedapomegila.iblogger.org/61298159851.pdfIn PDF document text
- http://bestsalestoday.xyz/betrayal_at_house_on_the_hill_expansion_traitor_s_tomegv70e.pdfIn PDF document text
- http://lnstagramoriginal.com/startup_cast_young_ji_pyeongw0vkb.pdfIn PDF document text
- http://paradusafe.iblogger.org/camera_sd_card_format.pdfIn PDF document text
- http://bubobimurasawe.iblogger.org/94021032958.pdfIn PDF document text
- http://walkover.me/898731110814h64s.pdfIn PDF document text
- http://appless.space/gmail_contacts_to_androidm67xq.pdfIn PDF document text
- http://tirevuvezig.22web.org/gexowovojopufuku.pdfIn PDF document text
- http://mini-cam2.club/wes_reviewing_evaluation_reportajb2l.pdfIn PDF document text
- http://bigchance.pw/henley_passport_index_2019fc7s2.pdfIn PDF document text
- http://prizinsta24.site/2005_buick_allure_for_saleqifz0.pdfIn PDF document text
- http://fsfsfd.xyz/bafisurifurasunilufejygst.pdfIn PDF document text
- http://busibear.com/judipiwuxmm2sm.pdfIn PDF document text
- http://www.ascendercorp.com/In PDF document text
- http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
- http://xebudulo.rf.gd/lofegidupipijilunumabaj.pdfIn PDF document text
- http://zovameden.rf.gd/is_4th_generation_echo_dot_better.pdfIn PDF document text
- http://lonuduvikis.epizy.com/what_is_a_narrative_4th_grade.pdfIn PDF document text
- http://mizujem.epizy.com/10475684351.pdfIn PDF document text
- https://s3.amazonaws.com/bisiku/51254689785.pdfIn PDF document text
- http://zozoresupiz.epizy.com/glee_never_going_back_again_full_performance.pdfIn PDF document text
- http://peburameg.epizy.com/49731039358.pdfIn PDF document text
- http://pazoluno.epizy.com/tonuwitadezudodinun.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_off00010bee.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x10BEE | 5664 bytes |
SHA-256: b28fc389286e9a19e9ff1902ada3c771e86fe2c17fe536264156b1264e79a0b0 |
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font_01_sfnt_off00011f57.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x11F57 | 11932 bytes |
SHA-256: fb5e6e83bf63e8d65cdceb785760d58bed0b9244ac83d888f9f201d3800e33a1 |
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