MALICIOUS
186
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1059.007 JavaScript
This PDF file was flagged by multiple heuristics as a link farm, containing numerous external links to potentially malicious or SEO-manipulative websites. The ML classifier and ClamAV also identified it as malicious, specifically as a phishing trojan. The embedded URLs suggest an attempt to redirect users to external content, possibly for phishing or malware distribution.
Machine Learning
- Nyx PDF Classifier malicious score 0.9997
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/strik?utm_term=capitulo+4a+actividad+5+audio+answers PDF link annotation
- https://gigalenu.weebly.com/uploads/1/3/4/6/134652901/5513660.pdfIn PDF document text
- https://nolurubeg.weebly.com/uploads/1/3/4/3/134350371/23d024.pdfIn PDF document text
- https://fifilukativoj.weebly.com/uploads/1/3/4/5/134509223/8563349.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4481162/normal_603ed49779c01.pdfIn PDF document text
- https://juxibawazorar.weebly.com/uploads/1/3/3/9/133997202/198491.pdfIn PDF document text
- https://kisotupojez.weebly.com/uploads/1/3/4/4/134493444/zezigasovik-jamon-fazaposozazuli-xazutom.pdfIn PDF document text
- http://luzomatuv.iblogger.org/zovanafosudaxana.pdfIn PDF document text
- http://tunizunifegitof.66ghz.com/aptoide_vs_apkpure.pdfIn PDF document text
- http://viputixezererej.66ghz.com/swim_pro_voyager_lock_ring.pdfIn PDF document text
- http://labiluwewinedu.22web.org/bengali_to_assamese_dictionary.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4500430/normal_6027e0af59e91.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4458621/normal_6042d16fc96e6.pdfIn PDF document text
- http://www.ascendercorp.com/In PDF document text
- http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
- http://bexituxupogetav.rf.gd/valajixizawumuwulogimajud.pdfIn PDF document text
- https://s3.amazonaws.com/xalexojaxipud/31533746405.pdfIn PDF document text
- http://gunubaxerilol.epizy.com/facebook_page_statistics_report.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/27661851-491e-4392-9797-a99af2f6b847/jifefiwen.pdfIn PDF document text
- https://s3.amazonaws.com/fidobakipivogit/xoforokugalelinufafowo.pdfIn PDF document text
- http://rukujabaxelab.epizy.com/lima_barreto_os_bruzundangas.pdfIn PDF document text
- http://bukofitezude.rf.gd/whatsapp_new_version_2020.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/50a7ed49-73d9-47d0-b310-4d7bd78cbf69/zejidujezotitatorakid.pdfIn PDF document text
- https://s3.amazonaws.com/divexikav/wondershare_mirrorgo_premium_apk.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_off00013feb.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x13FEB | 5336 bytes |
SHA-256: 8b38e6f1f5883912124ce00ef89d81e8375a64ff605e2da59c0288907017c667 |
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font_01_sfnt_off00015238.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x15238 | 11564 bytes |
SHA-256: 48917dae2d786fd4601fd0de336bdc3b3b3f3e7f8fe236bc4710ee315077cd0a |
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