Malicious PDF — malware analysis report

Static analysis result for SHA-256 0e5921362b0c83b7…

MALICIOUS

PDF

80.4 KB Created: 2021-03-03 20:05:13 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-23
MD5: f7c0cf32efb1abcda511f11a52b10952 SHA-1: 601a8de4a295649fa04e3f1998f66a0b205b6428 SHA-256: 0e5921362b0c83b7aff77db864fa2d7251fe3ca43d3470aaae0bbd086715ba83
96 Risk Score

Malware Insights

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

The PDF contains an embedded URL that directs users to a website disguised as information about car purchases, but is instead a phishing lure. The ML classifier and ClamAV detection strongly indicate malicious intent, likely for phishing or credential harvesting. No scripts were extracted, but the PDF structure and embedded URI are sufficient indicators of a phishing attack.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9992

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://jacksth.ru/award?keyword=is+a+jeep+wrangler+a+good+car+to+buy PDF link annotation
    • https://cdn.sqhk.co/ketusugedi/8gjdjd2/indycar_race_control.pdfIn PDF document text
    • http://indonesia2health.online/adverb_of_time_place_and_manner_worksheetsbs2dk.pdfIn PDF document text
    • http://tujidal.mypressonline.com/how_to_change_hoover_windtunnel_belt.pdfIn PDF document text
    • http://smartcoin.design/werudndmtw.pdfIn PDF document text
    • https://cdn.sqhk.co/zaviresodew/ihe07ha/zibemikibitavudetef.pdfIn PDF document text
    • http://consequences.space/gitezusatalolbruoj.pdfIn PDF document text
    • http://4gusevshop.website/jihosoft_android_phone_recovery_mac_freewrkeb.pdfIn PDF document text
    • http://wapadax.scienceontheweb.net/ragokakozapin.pdfIn PDF document text
    • https://cdn.sqhk.co/sozasusu/dgdjhg2/soccer_player_dies_south_africa.pdfIn PDF document text
    • http://disconto50.info/49169356810bhw2v.pdfIn PDF document text
    • http://segwaywheelchair.ru/heavier_than_heaven_reviewtq9tw.pdfIn PDF document text
    • http://bumasujofoj.getenjoyment.net/21778569187.pdfIn PDF document text
    • http://jinevul.mygamesonline.org/excel_online_training_classes.pdfIn PDF document text
    • http://it50disconto.pro/puveworile7ahvl.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/votawawo/24426360598.pdfIn PDF document text
    • https://s3.amazonaws.com/sumesawoxajew/it_chapter_2_2019_movie.pdfIn PDF document text
    • https://s3.amazonaws.com/jasadavebaga/employee_manual_template_canada.pdfIn PDF document text
    • https://s3.amazonaws.com/sedimeraxufi/biografi_auguste_comte.pdfIn PDF document text
    • https://s3.amazonaws.com/guvovigo/crystal_reports_totext_function_syntax.pdfIn PDF document text
    • https://s3.amazonaws.com/fedure/53422707671.pdfIn PDF document text
    • https://s3.amazonaws.com/visagogijulep/vetoketi.pdfIn PDF document text
    • http://jasunusemoki.onlinewebshop.net/zokudofukufanixus.pdfIn PDF document text
    • https://s3.amazonaws.com/xofalepelala/data_analysis_approach.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.

FilenameKindSourceSize
font_00_sfnt_off0000fba4.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xFBA4 5588 bytes
SHA-256: 23d4e9f3ea252d63bd1393a127794562aa3ff3aec641eb4f96a16d03da2ffa83
font_01_sfnt_off00010ec8.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x10EC8 10792 bytes
SHA-256: 30bfdb66033b0e364f6d31c3bcf6b6df5af851d09bc771628f6dc3a8b315d839

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