MALICIOUS
126
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1059.007 JavaScript
The PDF document was flagged by ML classifiers and ClamAV as malicious, specifically as a phishing or trojan variant. It contains numerous external URIs, many hosted on disposable domains, suggesting a link farm designed to redirect users to malicious sites. The document body, though heavily obfuscated, contains references to 'El pollo loco use msg' and 'wkhtmltopdf', indicating a potential lure for a game or service, and the use of a tool for PDF generation. The presence of embedded URLs and the link farm heuristic strongly suggest the intent is to redirect users to malicious content.
Machine Learning
- Nyx PDF Classifier malicious score 0.9989
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://jacksth.ru/strik?utm_term=el+pollo+loco+use+msg PDF link annotation
- http://rusherx.studio/how_to_calculate_penalty_interest_on_loan_in_excel0iqbp.pdfIn PDF document text
- http://weraka.online/round_the_world_in_80_days_book_summaryc4771.pdfIn PDF document text
- http://help-business-media.com/davofupuvono1jvj2.pdfIn PDF document text
- http://navalny.design/71096422780nqssn.pdfIn PDF document text
- http://perorivatifurar.iblogger.org/81756090625.pdfIn PDF document text
- https://static.s123-cdn-static.com/uploads/4416666/normal_5ff9ab3e3e116.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4366659/normal_6030f5f6c7193.pdfIn PDF document text
- http://salonvarna.com/fitiratunekasaxazatamowaxofx.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4469641/normal_60229f39b142d.pdfIn PDF document text
- http://matcobzor.ru/64060313973asmn9.pdfIn PDF document text
- http://sberhome.ru/filimif3gjx.pdfIn PDF document text
- http://fragcups.com/frank_j_reilly_method_of_drawing3f2hu.pdfIn PDF document text
- http://www.ascendercorp.com/In PDF document text
- http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
- http://jabepujun.epizy.com/counter_strike_source_setup_for_pc.pdfIn PDF document text
- http://zuronixo.rf.gd/38277503155.pdfIn PDF document text
- https://s3.amazonaws.com/xamapebonijos/pakijisuw.pdfIn PDF document text
- http://pafemex.rf.gd/ganob.pdfIn PDF document text
- https://s3.amazonaws.com/feborobegibew/saki_saki_full_hd_song_pagalworld.pdfIn PDF document text
- https://s3.amazonaws.com/fakuguvil/vessel_berthing_report_cict.pdfIn PDF document text
- https://ec560393-4650-4708-bf0c-d08fceb8458c.filesusr.com/ugd/ca69db_c8cdfac0ef8a40f1a47fdeb7ecd6f804.pdf?index=trueIn PDF document text
- https://ed4d48c2-14ea-47f5-a89a-b82193587323.filesusr.com/ugd/8ce377_f35b0c55437744b2b6bf1d59667cc3d7.pdf?index=trueIn PDF document text
- https://s3.amazonaws.com/mefadedosuw/the_song_film_trailer.pdfIn PDF document text
- https://s3.amazonaws.com/limewub/graphing_inequalities_on_a_number_line.pdfIn PDF document text
- http://limixawur.rf.gd/bononedujos.pdfIn PDF document text
- https://79d86aa2-23c4-4aa0-a0dc-c16ac59ae55d.filesusr.com/ugd/ecb701_7d5054edc676440e8679a5fc81c186b2.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_off00010db3.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x10DB3 | 2900 bytes |
SHA-256: 68d094faf81d2ea9f62e68ee4e789e40b6192f27e323b9e50c58fbaa8f881837 |
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font_01_sfnt_off000117f6.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x117F6 | 4904 bytes |
SHA-256: f1f0804faba729de620237fae097fc09706603e71ea530cc37b3e26a9e85764d |
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font_02_sfnt_off0001289e.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x1289E | 11508 bytes |
SHA-256: 849fb77e227d0470d0621b6fb705ca27d90b213c55c4e74011e6389902bd0ea7 |
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