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 malicious, including a critical ClamAV detection and an ML classifier. It contains a large number of external links, many pointing to disposable hosting, suggesting a link farm or phishing attempt. The embedded URL `https://resalured.ru/wix?keyword=suma+y+resta+de+polinomios+con+parentesis` is likely part of this malicious infrastructure.
Machine Learning
- Nyx PDF Classifier malicious score 0.9998
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://resalured.ru/wix?keyword=suma+y+resta+de+polinomios+con+parentesis PDF link annotation
- https://cdn.sqhk.co/zulatobi/fheifgj/roll_the_ball_slide_puzzle_2.pdfIn PDF document text
- https://cdn.sqhk.co/fewukise/ji4jhWj/vuromezilexema.pdfIn PDF document text
- https://cdn.sqhk.co/torixugajo/duTOqgj/satisfying_slime_videos_asmr_2019.pdfIn PDF document text
- https://cdn.sqhk.co/buxisinuji/ZiaifdA/fortress_td_era_monsters.pdfIn PDF document text
- https://cdn.sqhk.co/wujejelot/gfYlUha/police_cop_simulator_gang_war_gameplay.pdfIn PDF document text
- https://cdn.sqhk.co/dedogupazib/6hiigFp/tumblr_wallpaper_hd_laptop.pdfIn PDF document text
- http://adanakebap.org/pulilekusilazfyd6.pdfIn PDF document text
- http://mkr-olimp.info/rccg_sunday_school_manual_24th_january_20216mfo0.pdfIn PDF document text
- https://cdn.sqhk.co/jigavozef/ecXgjjc/zombie_craft_survival_best_free_shooting_game.pdfIn PDF document text
- https://cdn.sqhk.co/webaxepibi/8Wggcmn/barber_adagio_sheet_music.pdfIn PDF document text
- http://creamwalls.online/day_of_the_week_in_spanish_worksheet49oym.pdfIn PDF document text
- http://indonesia2health.online/24950763613ymp49.pdfIn PDF document text
- https://cdn.sqhk.co/kixarozikej/jdGGe59/xupiwevejamonanokigino.pdfIn 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/cf4b2c75-b0fb-4f8f-96ce-f4e9c68daf77/51051155216.pdfIn PDF document text
- https://db532842-334f-4efb-8993-e67ec8f20ff5.filesusr.com/ugd/bc5be3_835de29a985e4b8eb4cfbda15648d496.pdf?index=trueIn PDF document text
- https://uploads.strikinglycdn.com/files/723fb412-5988-472a-9420-6157f05b1bb9/39418516749.pdfIn PDF document text
- https://b3a1a1c9-4f8f-4fb8-b7cc-7339030cc889.filesusr.com/ugd/162fe6_775a6a8323c44a44a82656be4e0bbc6d.pdf?index=trueIn PDF document text
- https://748f1d53-d141-46c1-926a-d14fc69713a3.filesusr.com/ugd/e3ed1f_c5b47925de6c4c8cae2f2d053c960d41.pdf?index=trueIn PDF document text
- https://b23183eb-b2e5-455e-bc25-91fac1efd10f.filesusr.com/ugd/cc14e4_23d76a8535e140beb546927cafe4ca55.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 2
Files carved from inside the sample during analysis.
| Filename | Kind | Source | Size |
|---|---|---|---|
font_00_sfnt_off0000ecb2.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xECB2 | 5424 bytes |
SHA-256: 7865df005acd6d62e17e7b6e032e1b35d38ecd9fde8577268b93c3dee11a1b2d |
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font_01_sfnt_off0000ff10.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xFF10 | 12072 bytes |
SHA-256: f70d71c8688a3a1686c7aeac840ded47e061f97bc3d0bd2eecefe97cdb1e8a67 |
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