Malicious PDF — malware analysis report

Static analysis result for SHA-256 3082a4c32a298578…

MALICIOUS

PDF

70.4 KB Created: 2021-03-21 21:48:55 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 56238231438c2ca95bd0788ee75eb102 SHA-1: e270e37229a4498b7b89160fcd37a0078cc125e5 SHA-256: 3082a4c32a298578bfa0a3e687a6002b2f7c0fecc86955f1b609ba692bfbcdca
96 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1059.007 JavaScript

The file is identified as malicious by ML classifiers and ClamAV, specifically as a phishing-related trojan. The embedded URL `https://resalured.ru/aws?utm_term=amar+sin+depender+pdf+gratis` suggests a lure to download the PDF, which is likely a phishing or malware distribution attempt. Although no scripts were explicitly extracted, the PDF format and the nature of the URL indicate potential for embedded malicious JavaScript or other exploits.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9997

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/aws?utm_term=amar+sin+depender+pdf+gratis
    • https://cdn-cms.f-static.net/uploads/4380384/normal_602dad997b497.pdf
    • https://cdn-cms.f-static.net/uploads/4412575/normal_602492b8cdbe8.pdf
    • https://static.s123-cdn-static.com/uploads/4489429/normal_5feb589a95c29.pdf
    • https://cdn-cms.f-static.net/uploads/4379029/normal_602526ae1243a.pdf
    • https://cdn-cms.f-static.net/uploads/4485946/normal_600ff1e5e447d.pdf
    • https://static.s123-cdn-static.com/uploads/4426263/normal_600087c52f658.pdf
    • https://cdn.sqhk.co/sofilita/ub2xget/lathe_spindle_speed_chart.pdf
    • https://cdn.sqhk.co/detazido/hjjggaj/download_larva_heroes_battle_league_mod_apk_2019.pdf
    • https://cdn.sqhk.co/sevilebup/nihJz8H/riotzone.pdf
    • http://natur-bio.space/mubatogepolijuzuxowagujiyeqr3.pdf
    • http://milanbeach.fun/social_media_marketing_proposal_free_downloadzcdx1.pdf
    • https://cdn.sqhk.co/mixaluwekitu/elKj6gd/cadena_100_telefono_cumpleanos.pdf
    • https://static.s123-cdn-static.com/uploads/4454432/normal_5ff06e0a58c51.pdf
    • https://static.s123-cdn-static.com/uploads/4501214/normal_5fd05bd59eb28.pdf
    • https://cdn.sqhk.co/bomemenun/eLgcVkz/cashflow_apk_free_download.pdf
    • https://static.s123-cdn-static.com/uploads/4411932/normal_5fc9e577792d9.pdf
    • http://www.ascendercorp.com/
    • http://www.ascendercorp.com/typedesigners.html
    • http://jojasodux.epizy.com/13784564341.pdf
    • http://wubidizox.rf.gd/80351956297.pdf
    • http://jijetebum.epizy.com/61985702466.pdf
    • http://waruzav.epizy.com/what_does_walter_symbolize_in_a_raisin_in_the_sun.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.

FilenameKindSourceSize
font_00_sfnt_off0000d247.bin
9c734acecfd825d30d4b8bc648102b7a982845b6265b2406cfdab466f0d47a75
pdf-font-stream PDF embedded font (sfnt) at offset 0xD247 5320 bytes
font_01_sfnt_off0000e446.bin
742e80093e04176f05a8ecd14b12b1f350986061935bf2e7e139045b4f377392
pdf-font-stream PDF embedded font (sfnt) at offset 0xE446 11804 bytes