PDF malware analysis — malicious · b70769a96cdbe412

MALICIOUS

PDF

72.3 KB Created: 2021-03-14 02:53:33 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)

MD5: 1f0442626b5dc003f2f41e5f5518d444 SHA-1: 7e0681901a04caa3ac0a95dfb6ee87475984203c SHA-256: b70769a96cdbe4120d8308c81e44fab0125dc958a3cde2e893fbec15aa264228

96 Risk Score

Malware Insights

MITRE ATT&CK

T1566.001 Spearphishing Attachment T1059.007 JavaScript

The PDF file was flagged by a machine learning classifier and ClamAV as malicious, specifically as a phishing trojan. It contains an embedded URI pointing to 'resalured.ru', which is likely part of a phishing or malware distribution scheme. Although no scripts were explicitly extracted, the presence of embedded URLs and the nature of the detection suggest it's designed to redirect users to malicious content.

Machine Learning

Nyx PDF Classifier malicious score 0.9998

Heuristics 4

ClamAV: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0 critical CLAMAV_DETECTION

ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0
External URI info PDF_URI

PDF contains an external URL action
Object number defined twice with different bodies info PDF_DUPLICATE_OBJ_BODY_INCREMENTAL

The 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.
Embedded URL info EMBEDDED_URL

One 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/strik?utm_term=how+to+turn+on+pioneer+tv+without+remote
- http://banoduber.iblogger.org/dezafowonikiserezipo.pdf
- http://dukelaxi.iblogger.org/republic_of_doyle_tv_show_cast.pdf
- https://cdn.sqhk.co/jiluputumusi/eVihjeB/89959573552.pdf
- http://najapizarut.22web.org/ikea_catalogue_online.pdf
- https://cdn.sqhk.co/zifeduwa/WiciiWv/tunetubixafepoxawuf.pdf
- https://cdn.sqhk.co/detazido/0vjbj2j/cute_teddy_bear_backgrounds.pdf
- https://cdn.sqhk.co/xedufoga/aYihugi/54776827628.pdf
- https://cdn.sqhk.co/jirowolad/he29jc7/teacher_appreciation_quotes_during_quarantine.pdf
- http://rizuxikasosokeg.22web.org/business_card_template_corel.pdf
- https://cdn.sqhk.co/puviponapib/aibQhfv/stadler_form_charly_black.pdf
- https://cdn.sqhk.co/baxijaxazixi/ifjeF2I/bezisexunas.pdf
- http://doropunakas.iblogger.org/pentair_easy_touch_remote_no_communication.pdf
- http://www.ascendercorp.com/
- http://www.ascendercorp.com/typedesigners.html
- https://s3.amazonaws.com/zaxawetawupo/79641013209.pdf
- https://s3.amazonaws.com/gagotaniwipure/ninestars_trash_can_battery_cover.pdf
- http://vemesedesalo.rf.gd/chord_recognition_app_android_free.pdf
- http://samepuwewar.rf.gd/reasons_why_my_ac_unit_is_not_cooling.pdf
- http://papivis.epizy.com/92864846815.pdf
- http://figabubif.rf.gd/pafidololaduruni.pdf
- http://gotazuvibidok.epizy.com/restore_whatsapp_backup_ios_to_android.pdf
- https://s3.amazonaws.com/napisakaluja/67219347271.pdf
- http://www.w3.org/1999/02/22-rdf-syntax-ns#
- http://purl.org/dc/elements/1.1/
- http://ns.adobe.com/pdf/1.3/
- http://ns.adobe.com/xap/1.0/
- http://ns.adobe.com/xap/1.0/mm/
- http://ns.adobe.com/xap/1.0/rights/
- http://scripts.sil.org/OFL

Extracted artifacts 2

Files carved from inside the sample during analysis.

Filename	Kind	Source	Size
`font_00_sfnt_off0000dfe8.bin` `3c7ff31b1242a8c4575fd4c857ad430c30d529929a45e64e5a826a1cdac9ed4e`	pdf-font-stream	PDF embedded font (sfnt) at offset 0xDFE8	4752 bytes
`font_01_sfnt_off0000effc.bin` `e4e58e511ef710fa8e21020a1d9ab1ecbe816832c9489cdced7c993135943797`	pdf-font-stream	PDF embedded font (sfnt) at offset 0xEFFC	10620 bytes

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