MALICIOUS
186
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1059.007 JavaScript
This PDF file was flagged as malicious by ML classifiers and ClamAV, indicating a high likelihood of malicious intent. It contains a large number of external links, many pointing to disposable hosting, suggesting a link farm or SEO manipulation tactic. The primary external URL observed is https://zajinet.ru/strik?utm_term=historia+natural+dela+enfermedad+ejemplos+pdf, which is likely used to redirect users to further malicious content or phishing pages.
Machine Learning
- Nyx PDF Classifier malicious score 0.9998
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://zajinet.ru/strik?utm_term=historia+natural+dela+enfermedad+ejemplos+pdf PDF link annotation
- https://cdn.sqhk.co/xadeviro/PHXSigW/formula_racer_game_2012.pdfIn PDF document text
- https://cdn.sqhk.co/tujarazimok/iihbAGi/wasatibovekemiz.pdfIn PDF document text
- https://cdn.sqhk.co/dexujagafir/boLKgik/exponential_idle_secret_achievements.pdfIn PDF document text
- http://parkji5x.xyz/how_to_set_time_on_pioneer_eeq_mosfet_50wx4xu5ea.pdfIn PDF document text
- http://siankaanmexico.com/78353300112cvowy.pdfIn PDF document text
- https://cdn.sqhk.co/sesumaku/ntZRMuh/91895473500.pdfIn PDF document text
- http://rixorevu.getenjoyment.net/can_i_substitute_vinegar_for_keurig_descaling_solution.pdfIn PDF document text
- http://fontawesome.iohttp://fontawesome.io/license/In PDF document text
- http://www.ascendercorp.com/In PDF document text
- http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
- https://uploads.strikinglycdn.com/files/14fbc772-6f1f-4562-be9a-33a3be9b7049/goketutotivoladawejaf.pdfIn PDF document text
- https://s3.amazonaws.com/zoromexemuzid/free_photo_christmas_card_templates_psd.pdfIn PDF document text
- http://tafiwepamubov.atwebpages.com/how_to_redeem_gamestop_code.pdfIn PDF document text
- https://s3.amazonaws.com/selivuvumepaveb/fumetabi.pdfIn PDF document text
- https://c8019651-2137-4367-b38e-775fff3f8a75.filesusr.com/ugd/fc5a02_be75670bcf5349348cdae527229a0771.pdf?index=trueIn PDF document text
- https://uploads.strikinglycdn.com/files/6635b234-3c68-43aa-a776-dcaf78a11c17/zemomalutowa.pdfIn PDF document text
- https://cb0920a4-0dfc-4587-8161-bd3bf883b043.filesusr.com/ugd/df391a_cdfb00434e124b04b2b285d4a3534b90.pdf?index=trueIn PDF document text
- https://s3.amazonaws.com/zoluwivebiro/how_to_know_my_debit_card_number_sbi.pdfIn PDF document text
- https://45f61934-b4a1-4335-a9e3-e142d9465b5b.filesusr.com/ugd/0dd040_dfdd0db523074f4aa7c05040cc11e018.pdf?index=trueIn PDF document text
- https://27a83426-c768-4525-a63d-b5b732cca755.filesusr.com/ugd/28b3f7_2de37a4365be45229f2d1ea19339918b.pdf?index=trueIn 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 3
Files carved from inside the sample during analysis.
| Filename | Kind | Source | Size |
|---|---|---|---|
font_00_sfnt_off0000f0c3.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xF0C3 | 2348 bytes |
SHA-256: 4fd9d9f18ce7a1f8868b86e908f6d0d54a1488e2024da57ff14b9bf74b1fffb1 |
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font_01_sfnt_off0000fb2d.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xFB2D | 5224 bytes |
SHA-256: 65b3947ca7054715821b8759674b1b46760303f6ff37bea35377877512dffc02 |
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font_02_sfnt_off00010cdb.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x10CDB | 11676 bytes |
SHA-256: 7151454ad50a7388376f7b2d9bcd514f90b7694278e7a98f86f5dd1b38923775 |
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