MALICIOUS
126
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1059.007 JavaScript
The PDF file contains embedded URLs and is flagged by ML classifiers and ClamAV as malicious, specifically as a phishing trojan. The document body, though heavily obfuscated, suggests a lure related to 'Que es el arpanet en informatica' which directs users to a suspicious URL. The presence of multiple external URIs and link farm heuristics further supports a phishing or malicious redirection attempt.
Machine Learning
- Nyx PDF Classifier malicious score 0.9997
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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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://nipisod.ru/123?utm_term=que+es+el+arpanet+en+informatica PDF link annotation
- https://cdn.sqhk.co/dufimogemeka/Wid9Jhj/kizapobezosefib.pdfIn PDF document text
- https://cdn.sqhk.co/wezupobuwab/dChhwij/business_analysis_tools_and_techniques_course.pdfIn PDF document text
- https://cdn.sqhk.co/mujawiru/d8hggcL/drive_and_park_mod_apk_download.pdfIn PDF document text
- http://shopsmmv.site/minecraft_stoneblock_guidej6243.pdfIn PDF document text
- http://disconto50.pro/what_does_postmarked_by_a_certain_date_meanbw5vt.pdfIn PDF document text
- http://the-english-temple.com/raynor_aviator_garage_door_opener_programming9oysk.pdfIn PDF document text
- http://silver35.ru/jayco_greyhawk_owners_forum6ajmv.pdfIn PDF document text
- http://reduslimitalia-ufficiale.site/xokiguxet7tyyu.pdfIn PDF document text
- http://www.ascendercorp.com/In PDF document text
- http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
- https://s3.amazonaws.com/zopenave/lapewubomotor.pdfIn PDF document text
- https://s3.amazonaws.com/fukezavazuj/39031399586.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/986abbaf-3f95-4d1e-a72c-6986e71ee5b0/40375631910.pdfIn PDF document text
- https://s3.amazonaws.com/rolefosiju/esc_guidelines_sudden_cardiac_death.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/ac949d27-d30f-4b4e-935c-aff9e3f5747d/suzuki_cello_book_10_contents.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/fa3e0d03-d498-4370-9c3b-4961b32f1a09/asus_maximus_vii_hero_usb_3.0_drivers.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/8101a635-a656-45c1-a59a-1fbbdadae140/what_are_the_7_stages_of_foetal_development_and_development.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/8fe83856-9f31-4f67-babb-a263de06aa51/how_to_stream_nye_ball_drop_on_roku.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/4b5083f8-f2c5-4872-8c1f-b0aedbd5a5c3/xowozamekonokeda.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/b22c601b-c5b0-4997-b799-bf8349cc8b3b/tewefokokinewi.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/218ec4e8-dbc5-4c8d-a32c-272c63304cf9/nowekexifozezipopavom.pdfIn PDF document text
- https://s3.amazonaws.com/minaxigevani/tebomewulogu.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/fbcf0aed-81d5-4234-8b4e-2f71c96d22ad/wakijanodafezeke.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_off0000fcbd.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xFCBD | 5224 bytes |
SHA-256: 0ca1a84a178c46aaea1ff4897cdbf258103d89e346a45c51c0436228855a7f6d |
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font_01_sfnt_off00010e6a.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x10E6A | 11756 bytes |
SHA-256: 43b67c8af3b1ff404e2de14353e69ab0d3b5a0da114e2380a57b726cc134bcb0 |
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